Y, Degboé; S, Fruchon; M, Baron; D, Nigon; CO, Turrin; AM, Caminade; R, Poupot; A, Cantagrel; JL, Davignon Modulation of pro-inflammatory activation of monocytes and dendritic cells by aza-bis-phosphonate dendrimer as an experimental therapeutic agent Journal Article In: Arthritis Research and Therapy, vol. 16, no. R98, 2014. @article{RN30,
title = {Modulation of pro-inflammatory activation of monocytes and dendritic cells by aza-bis-phosphonate dendrimer as an experimental therapeutic agent},
author = {Degboé Y and Fruchon S and Baron M and Nigon D and Turrin CO and Caminade AM and Poupot R and Cantagrel A and JL, Davignon},
year = {2014},
date = {2014-01-01},
journal = {Arthritis Research and Therapy},
volume = {16},
number = {R98},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Chakarov, S.; Fazilleau, N. Monocyte-derived dendritic cells promote T follicular helper cell differentiation Journal Article In: EMBO Mol Med, vol. 6, pp. 590-603, 2014, ISSN: 1757-4684 (Electronic)
1757-4676 (Linking). @article{RN5b,
title = {Monocyte-derived dendritic cells promote T follicular helper cell differentiation},
author = {Chakarov, S. and Fazilleau, N.},
url = {http://www.ncbi.nlm.nih.gov/pubmed/24737871},
doi = {10.1002/emmm.201403841},
issn = {1757-4684 (Electronic)
1757-4676 (Linking)},
year = {2014},
date = {2014-01-01},
journal = {EMBO Mol Med},
volume = {6},
pages = {590-603},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Outteryck, O.; Ongagna, J. C.; Brochet, B.; Rumbach, L.; Lebrun-Frenay, C.; Debouverie, M.; Zephir, H.; Ouallet, J. C.; Berger, E.; Cohen, M.; Pittion, S.; Laplaud, D.; Wiertlewski, S.; Cabre, P.; Pelletier, J.; Rico, A.; Defer, G.; Derache, N.; Camu, W.; Thouvenot, E.; Moreau, T.; Fromont, A.; Tourbah, A.; Labauge, P.; Castelnovo, G.; Clavelou, P.; Casez, O.; Hautecoeur, P.; Papeix, C.; Lubetzki, C.; Fontaine, B.; Couturier, N.; Bohossian, N.; Clanet, M.; Vermersch, P.; de Seze, J.; Brassat, D.; Network, Bionat; Cfsep, A prospective observational post-marketing study of natalizumab-treated multiple sclerosis patients: clinical, radiological and biological features and adverse events. The BIONAT cohort Journal Article In: Eur J Neurol, vol. 21, no. 1, pp. 40-8, 2014, ISSN: 1468-1331 (Electronic)
1351-5101 (Linking). @article{RN6b,
title = {A prospective observational post-marketing study of natalizumab-treated multiple sclerosis patients: clinical, radiological and biological features and adverse events. The BIONAT cohort},
author = {Outteryck, O. and Ongagna, J. C. and Brochet, B. and Rumbach, L. and Lebrun-Frenay, C. and Debouverie, M. and Zephir, H. and Ouallet, J. C. and Berger, E. and Cohen, M. and Pittion, S. and Laplaud, D. and Wiertlewski, S. and Cabre, P. and Pelletier, J. and Rico, A. and Defer, G. and Derache, N. and Camu, W. and Thouvenot, E. and Moreau, T. and Fromont, A. and Tourbah, A. and Labauge, P. and Castelnovo, G. and Clavelou, P. and Casez, O. and Hautecoeur, P. and Papeix, C. and Lubetzki, C. and Fontaine, B. and Couturier, N. and Bohossian, N. and Clanet, M. and Vermersch, P. and de Seze, J. and Brassat, D. and Network, Bionat and Cfsep},
url = {http://www.ncbi.nlm.nih.gov/pubmed/23895407},
doi = {10.1111/ene.12204},
issn = {1468-1331 (Electronic)
1351-5101 (Linking)},
year = {2014},
date = {2014-01-01},
journal = {Eur J Neurol},
volume = {21},
number = {1},
pages = {40-8},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Laffont, S.; Rouquie, N.; Azar, P.; Seillet, C.; Plumas, J.; Aspord, C.; Guery, J. C. X-Chromosome complement and estrogen receptor signaling independently contribute to the enhanced TLR7-mediated IFN-alpha production of plasmacytoid dendritic cells from women Journal Article In: J Immunol, vol. 193, no. 11, pp. 5444-52, 2014, ISSN: 1550-6606 (Electronic)
0022-1767 (Linking). @article{RN5,
title = {X-Chromosome complement and estrogen receptor signaling independently contribute to the enhanced TLR7-mediated IFN-alpha production of plasmacytoid dendritic cells from women},
author = {Laffont, S. and Rouquie, N. and Azar, P. and Seillet, C. and Plumas, J. and Aspord, C. and Guery, J. C.},
url = {http://www.ncbi.nlm.nih.gov/pubmed/25339659
http://www.jimmunol.org/content/193/11/5444.full.pdf},
doi = {10.4049/jimmunol.1303400},
issn = {1550-6606 (Electronic)
0022-1767 (Linking)},
year = {2014},
date = {2014-01-01},
journal = {J Immunol},
volume = {193},
number = {11},
pages = {5444-52},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Lucca, L. E.; Desbois, S.; Ramadan, A.; Ben-Nun, A.; Eisenstein, M.; Carrie, N.; Guery, J. C.; Sette, A.; Nguyen, P.; Geiger, T. L.; Mars, L. T.; Liblau, R. S. Bispecificity for myelin and neuronal self-antigens is a common feature of CD4 T cells in C57BL/6 mice Journal Article In: J Immunol, vol. 193, no. 7, pp. 3267-77, 2014, ISSN: 1550-6606 (Electronic)
0022-1767 (Linking). @article{RN21,
title = {Bispecificity for myelin and neuronal self-antigens is a common feature of CD4 T cells in C57BL/6 mice},
author = {Lucca, L. E. and Desbois, S. and Ramadan, A. and Ben-Nun, A. and Eisenstein, M. and Carrie, N. and Guery, J. C. and Sette, A. and Nguyen, P. and Geiger, T. L. and Mars, L. T. and Liblau, R. S.},
url = {https://www.ncbi.nlm.nih.gov/pubmed/25135834},
doi = {10.4049/jimmunol.1400523},
issn = {1550-6606 (Electronic)
0022-1767 (Linking)},
year = {2014},
date = {2014-01-01},
journal = {J Immunol},
volume = {193},
number = {7},
pages = {3267-77},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Mellstrom, B.; Sahun, I.; Ruiz-Nuno, A.; Murtra, P.; Gomez-Villafuertes, R.; Savignac, M.; Oliveros, J. C.; Gonzalez, P.; Kastanauskaite, A.; Knafo, S.; Zhuo, M.; Higuera-Matas, A.; Errington, M. L.; Maldonado, R.; DeFelipe, J.; Jefferys, J. G.; Bliss, T. V.; Dierssen, M.; Naranjo, J. R. DREAM controls the on/off switch of specific activity-dependent transcription pathways Journal Article In: Mol Cell Biol, vol. 34, no. 5, pp. 877-87, 2014, ISSN: 1098-5549 (Electronic)
0270-7306 (Linking). @article{RN20b,
title = {DREAM controls the on/off switch of specific activity-dependent transcription pathways},
author = {Mellstrom, B. and Sahun, I. and Ruiz-Nuno, A. and Murtra, P. and Gomez-Villafuertes, R. and Savignac, M. and Oliveros, J. C. and Gonzalez, P. and Kastanauskaite, A. and Knafo, S. and Zhuo, M. and Higuera-Matas, A. and Errington, M. L. and Maldonado, R. and DeFelipe, J. and Jefferys, J. G. and Bliss, T. V. and Dierssen, M. and Naranjo, J. R.},
url = {https://www.ncbi.nlm.nih.gov/pubmed/24366545},
doi = {10.1128/MCB.00360-13},
issn = {1098-5549 (Electronic)
0270-7306 (Linking)},
year = {2014},
date = {2014-01-01},
journal = {Mol Cell Biol},
volume = {34},
number = {5},
pages = {877-87},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Savignac, M.; Simon, M.; Edir, A.; Guibbal, L.; Hovnanian, A. SERCA2 dysfunction in Darier disease causes endoplasmic reticulum stress and impaired cell-to-cell adhesion strength: rescue by Miglustat Journal Article In: J Invest Dermatol, vol. 134, no. 7, pp. 1961-1970, 2014, ISSN: 1523-1747 (Electronic)
0022-202X (Linking). @article{RN12b,
title = {SERCA2 dysfunction in Darier disease causes endoplasmic reticulum stress and impaired cell-to-cell adhesion strength: rescue by Miglustat},
author = {Savignac, M. and Simon, M. and Edir, A. and Guibbal, L. and Hovnanian, A.},
url = {https://www.ncbi.nlm.nih.gov/pubmed/24390139},
doi = {10.1038/jid.2014.8},
issn = {1523-1747 (Electronic)
0022-202X (Linking)},
year = {2014},
date = {2014-01-01},
journal = {J Invest Dermatol},
volume = {134},
number = {7},
pages = {1961-1970},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Jabrane-Ferrat, N.; Siewiera, J. The up side of decidual natural killer cells: new developments in immunology of pregnancy Journal Article In: Immunology, vol. 141, no. 4, pp. 490-7, 2014, ISSN: 1365-2567 (Electronic)
0019-2805 (Linking). @article{RN867,
title = {The up side of decidual natural killer cells: new developments in immunology of pregnancy},
author = {Jabrane-Ferrat, N. and Siewiera, J.},
url = {https://www.ncbi.nlm.nih.gov/pubmed/24256296},
doi = {10.1111/imm.12218},
issn = {1365-2567 (Electronic)
0019-2805 (Linking)},
year = {2014},
date = {2014-01-01},
journal = {Immunology},
volume = {141},
number = {4},
pages = {490-7},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Lauden, L.; Siewiera, J.; Boukouaci, W.; Ramgolam, K.; Mourah, S.; Lebbe, C.; Charron, D.; Aoudjit, F.; Jabrane-Ferrat, N.; Al-Daccak, R. TGF-beta-induced (TGFBI) protein in melanoma: a signature of high metastatic potential Journal Article In: J Invest Dermatol, vol. 134, no. 6, pp. 1675-1685, 2014, ISSN: 1523-1747 (Electronic)
0022-202X (Linking). @article{RN866,
title = {TGF-beta-induced (TGFBI) protein in melanoma: a signature of high metastatic potential},
author = {Lauden, L. and Siewiera, J. and Boukouaci, W. and Ramgolam, K. and Mourah, S. and Lebbe, C. and Charron, D. and Aoudjit, F. and Jabrane-Ferrat, N. and Al-Daccak, R.},
url = {https://www.ncbi.nlm.nih.gov/pubmed/24499734},
doi = {10.1038/jid.2014.20},
issn = {1523-1747 (Electronic)
0022-202X (Linking)},
year = {2014},
date = {2014-01-01},
journal = {J Invest Dermatol},
volume = {134},
number = {6},
pages = {1675-1685},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Boukouaci, W.; Lauden, L.; Siewiera, J.; Dam, N.; Hocine, H. R.; Khaznadar, Z.; Tamouza, R.; Borlado, L. R.; Charron, D.; Jabrane-Ferrat, N.; Al-Daccak, R. Natural killer cell crosstalk with allogeneic human cardiac-derived stem/progenitor cells controls persistence Journal Article In: Cardiovasc Res, vol. 104, no. 2, pp. 290-302, 2014, ISSN: 1755-3245 (Electronic)
0008-6363 (Linking). @article{RN865,
title = {Natural killer cell crosstalk with allogeneic human cardiac-derived stem/progenitor cells controls persistence},
author = {Boukouaci, W. and Lauden, L. and Siewiera, J. and Dam, N. and Hocine, H. R. and Khaznadar, Z. and Tamouza, R. and Borlado, L. R. and Charron, D. and Jabrane-Ferrat, N. and Al-Daccak, R.},
url = {https://www.ncbi.nlm.nih.gov/pubmed/25213554},
doi = {10.1093/cvr/cvu208},
issn = {1755-3245 (Electronic)
0008-6363 (Linking)},
year = {2014},
date = {2014-01-01},
journal = {Cardiovasc Res},
volume = {104},
number = {2},
pages = {290-302},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Planes, R.; BenMohamed, L.; Leghmari, K.; Delobel, P.; Izopet, J.; Bahraoui, E. HIV-1 Tat protein induces PD-L1 (B7-H1) expression on dendritic cells through tumor necrosis factor alpha- and toll-like receptor 4-mediated mechanisms Journal Article In: J Virol, vol. 88, no. 12, pp. 6672-89, 2014, ISSN: 1098-5514 (Electronic)
0022-538X (Linking). @article{RN877,
title = {HIV-1 Tat protein induces PD-L1 (B7-H1) expression on dendritic cells through tumor necrosis factor alpha- and toll-like receptor 4-mediated mechanisms},
author = {Planes, R. and BenMohamed, L. and Leghmari, K. and Delobel, P. and Izopet, J. and Bahraoui, E.},
url = {https://www.ncbi.nlm.nih.gov/pubmed/24696476},
doi = {10.1128/JVI.00825-14},
issn = {1098-5514 (Electronic)
0022-538X (Linking)},
year = {2014},
date = {2014-01-01},
journal = {J Virol},
volume = {88},
number = {12},
pages = {6672-89},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Bahraoui, E.; Briant, L.; Chazal, N. E5564 inhibits immunosuppressive cytokine IL-10 induction promoted by HIV-1 Tat protein Journal Article In: Virol J, vol. 11, pp. 214, 2014, ISSN: 1743-422X (Electronic)
1743-422X (Linking). @article{RN876,
title = {E5564 inhibits immunosuppressive cytokine IL-10 induction promoted by HIV-1 Tat protein},
author = {Bahraoui, E. and Briant, L. and Chazal, N.},
url = {https://www.ncbi.nlm.nih.gov/pubmed/25471526},
doi = {10.1186/s12985-014-0214-z},
issn = {1743-422X (Electronic)
1743-422X (Linking)},
year = {2014},
date = {2014-01-01},
journal = {Virol J},
volume = {11},
pages = {214},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Adoue, V; Schiavi, A; Light, N; Almlof, J C; Lundmark, P; Ge, B; Kwan, T; Caron, M; Ronnblom, L; Wang, C; Chen, S H; Goodall, A H; Cambien, F; Deloukas, P; Ouwehand, W H; Syvanen, A C; Pastinen, T Allelic expression mapping across cellular lineages to establish impact of non-coding SNPs Journal Article In: Molecular Systems Biology, vol. 10, no. 10, pp. 754, 2014. @article{Adoue2014,
title = {Allelic expression mapping across cellular lineages to establish impact of non-coding SNPs},
author = {Adoue, V and Schiavi, A and Light, N and Almlof, J C and Lundmark, P and Ge, B and Kwan, T and Caron, M and Ronnblom, L and Wang, C and Chen, S H and Goodall, A H and Cambien, F and Deloukas, P and Ouwehand, W H and Syvanen, A C and Pastinen, T},
url = {http://msb.embopress.org/cgi/doi/10.15252/msb.20145114},
doi = {10.15252/msb.20145114},
year = {2014},
date = {2014-01-01},
journal = {Molecular Systems Biology},
volume = {10},
number = {10},
pages = {754},
publisher = {EMBO Press},
abstract = {Most complex disease‐associated genetic variants are located in non‐coding regions and are therefore thought to be regulatory in nature. Association mapping of differential allelic expression (AE) is a powerful method to identify SNPs with direct cis‐ regulatory impact ( cis‐ rSNPs). We used AE mapping to identify cis‐ rSNPs regulating gene expression in 55 and 63 HapMap lymphoblastoid cell lines from a Caucasian and an African population, respectively, 70 fibroblast cell lines, and 188 purified monocyte samples and found 40–60% of these cis ‐rSNPs to be shared across cell types. We uncover a new class of cis ‐rSNPs, which disrupt footprint‐derived de novo motifs that are predominantly bound by repressive factors and are implicated in disease susceptibility through overlaps with GWAS SNPs. Finally, we provide the proof‐of‐principle for a new approach for genome‐wide functional validation of transcription factor–SNP interactions. By perturbing NF$kappa$B action in lymphoblasts, we identified 489 cis ‐regulated transcripts with altered AE after NF$kappa$B perturbation. Altogether, we perform a comprehensive analysis of cis ‐variation in four cell populations and provide new tools for the identification of functional variants associated to complex diseases.![][1]textless/imgtextgreaterA comprehensive analysis cis ‐variation in four cell‐populations uncovers a new‐class of cis ‐regulatory SNPs associated with repressor activity. Global analysis of the role of key regulators is achieved by combining allelic expression read‐outs with targeted perturbation of transcription factors.Mol Syst Biol. (2014) 10: 754 [1]: pending:yes},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Most complex disease‐associated genetic variants are located in non‐coding regions and are therefore thought to be regulatory in nature. Association mapping of differential allelic expression (AE) is a powerful method to identify SNPs with direct cis‐ regulatory impact ( cis‐ rSNPs). We used AE mapping to identify cis‐ rSNPs regulating gene expression in 55 and 63 HapMap lymphoblastoid cell lines from a Caucasian and an African population, respectively, 70 fibroblast cell lines, and 188 purified monocyte samples and found 40–60% of these cis ‐rSNPs to be shared across cell types. We uncover a new class of cis ‐rSNPs, which disrupt footprint‐derived de novo motifs that are predominantly bound by repressive factors and are implicated in disease susceptibility through overlaps with GWAS SNPs. Finally, we provide the proof‐of‐principle for a new approach for genome‐wide functional validation of transcription factor–SNP interactions. By perturbing NF$kappa$B action in lymphoblasts, we identified 489 cis ‐regulated transcripts with altered AE after NF$kappa$B perturbation. Altogether, we perform a comprehensive analysis of cis ‐variation in four cell populations and provide new tools for the identification of functional variants associated to complex diseases.![][1]textless/imgtextgreaterA comprehensive analysis cis ‐variation in four cell‐populations uncovers a new‐class of cis ‐regulatory SNPs associated with repressor activity. Global analysis of the role of key regulators is achieved by combining allelic expression read‐outs with targeted perturbation of transcription factors.Mol Syst Biol. (2014) 10: 754 [1]: pending:yes |
Light, N; Adoue, V; Ge, B; Chen, S-H; Kwan, T; Pastinen, T Interrogation of allelic chromatin states in human cells by high-density ChIP-genotyping. Journal Article In: Epigenetics, vol. 9, no. 9, pp. 1238–1251, 2014. @article{Light2014,
title = {Interrogation of allelic chromatin states in human cells by high-density ChIP-genotyping.},
author = {Light, N and Adoue, V and Ge, B and Chen, S-H and Kwan, T and Pastinen, T},
url = {http://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=25055051&retmode=ref&cmd=prlinks},
doi = {10.4161/epi.29920},
year = {2014},
date = {2014-01-01},
journal = {Epigenetics},
volume = {9},
number = {9},
pages = {1238--1251},
abstract = {Allele-specific (AS) assessment of chromatin has the potential to elucidate specific cis-regulatory mechanisms, which are predicted to underlie the majority of the known genetic associations to complex disease. However, development of chromatin landscapes at allelic resolution has been challenging since sites of variable signal strength require substantial read depths not commonly applied in sequencing based approaches. In this study, we addressed this by performing parallel analyses of input DNA and chromatin immunoprecipitates (ChIP) on high-density Illumina genotyping arrays. Allele-specificity for the histone modifications H3K4me1, H3K4me3, H3K27ac, H3K27me3, and H3K36me3 was assessed using ChIP samples generated from 14 lymphoblast and 6 fibroblast cell lines. AS-ChIP SNPs were combined into domains and validated using high-confidence ChIP-seq sites. We observed characteristic patterns of allelic-imbalance for each histone-modification around allele-specifically expressed transcripts. Notably, we found H3K4me1 to be significantly anti-correlated with allelic expression (AE) at transcription start sites, indicating H3K4me1 allelic imbalance as a marker of AE. We also found that allelic chromatin domains exhibit population and cell-type specificity as well as heritability within trios. Finally, we observed that a subset of allelic chromatin domains is regulated by DNase I-sensitive quantitative trait loci and that these domains are significantly enriched for genome-wide association studies hits, with autoimmune disease associated SNPs specifically enriched in lymphoblasts. This study provides the first genome-wide maps of allelic-imbalance for five histone marks. Our results provide new insights into the role of chromatin in cis-regulation and highlight the need for high-depth sequencing in ChIP-seq studies along with the need to improve allele-specificity of ChIP-enrichment.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Allele-specific (AS) assessment of chromatin has the potential to elucidate specific cis-regulatory mechanisms, which are predicted to underlie the majority of the known genetic associations to complex disease. However, development of chromatin landscapes at allelic resolution has been challenging since sites of variable signal strength require substantial read depths not commonly applied in sequencing based approaches. In this study, we addressed this by performing parallel analyses of input DNA and chromatin immunoprecipitates (ChIP) on high-density Illumina genotyping arrays. Allele-specificity for the histone modifications H3K4me1, H3K4me3, H3K27ac, H3K27me3, and H3K36me3 was assessed using ChIP samples generated from 14 lymphoblast and 6 fibroblast cell lines. AS-ChIP SNPs were combined into domains and validated using high-confidence ChIP-seq sites. We observed characteristic patterns of allelic-imbalance for each histone-modification around allele-specifically expressed transcripts. Notably, we found H3K4me1 to be significantly anti-correlated with allelic expression (AE) at transcription start sites, indicating H3K4me1 allelic imbalance as a marker of AE. We also found that allelic chromatin domains exhibit population and cell-type specificity as well as heritability within trios. Finally, we observed that a subset of allelic chromatin domains is regulated by DNase I-sensitive quantitative trait loci and that these domains are significantly enriched for genome-wide association studies hits, with autoimmune disease associated SNPs specifically enriched in lymphoblasts. This study provides the first genome-wide maps of allelic-imbalance for five histone marks. Our results provide new insights into the role of chromatin in cis-regulation and highlight the need for high-depth sequencing in ChIP-seq studies along with the need to improve allele-specificity of ChIP-enrichment. |
Kezic, Sanja; Novak, Natalija; Jakasa, Ivone; Jungersted, Jackob M; Simon, Michel; Brandner, Johanna M; Middelkamp-Hup, Maritza A; Weidinger, Stephan Skin barrier in atopic dermatitis. Journal Article In: Frontiers in bioscience (Landmark edition), vol. 19, pp. 542–556, 2014, ISSN: 1093-4715 (Electronic). @article{Kezic2014,
title = {Skin barrier in atopic dermatitis.},
author = {Kezic, Sanja and Novak, Natalija and Jakasa, Ivone and Jungersted, Jackob M and Simon, Michel and Brandner, Johanna M and Middelkamp-Hup, Maritza A and Weidinger, Stephan},
doi = {10.2741/4225},
issn = {1093-4715 (Electronic)},
year = {2014},
date = {2014-01-01},
journal = {Frontiers in bioscience (Landmark edition)},
volume = {19},
pages = {542--556},
abstract = {The skin represents the largest organ of the body and provides a vital interface between the body and the environment. Hereditary and acquired alterations of structural proteins and lipids of the stratum corneum and epidermal tight junctions leading to a diminished skin barrier function are major causative factors for a number of skin diseases, in particular atopic dermatitis (AD). This review summarizes current knowledge on the role of the skin barrier in AD with regard to pathogenesis and treatment, on the relationship between skin barrier abnormalities and immune aberrations, and on potential therapies aimed at repair of the skin barrier. Furthermore recent advances in the genetics of AD will be addressed.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
The skin represents the largest organ of the body and provides a vital interface between the body and the environment. Hereditary and acquired alterations of structural proteins and lipids of the stratum corneum and epidermal tight junctions leading to a diminished skin barrier function are major causative factors for a number of skin diseases, in particular atopic dermatitis (AD). This review summarizes current knowledge on the role of the skin barrier in AD with regard to pathogenesis and treatment, on the relationship between skin barrier abnormalities and immune aberrations, and on potential therapies aimed at repair of the skin barrier. Furthermore recent advances in the genetics of AD will be addressed. |
Mallet, A; Kypriotou, M; George, K; Leclerc, E; Rivero, D; Mazereeuw-Hautier, J; Serre, G; Huber, M; Jonca, N; Hohl, D Identification of the first nonsense CDSN mutation with expression of a truncated protein causing peeling skin syndrome type B. Journal Article In: The British journal of dermatology, vol. 169, no. 6, pp. 1322–1325, 2013, ISSN: 1365-2133 (Electronic). @article{Mallet2013,
title = {Identification of the first nonsense CDSN mutation with expression of a truncated protein causing peeling skin syndrome type B.},
author = {Mallet, A and Kypriotou, M and George, K and Leclerc, E and Rivero, D and Mazereeuw-Hautier, J and Serre, G and Huber, M and Jonca, N and Hohl, D},
doi = {10.1111/bjd.12593},
issn = {1365-2133 (Electronic)},
year = {2013},
date = {2013-12-01},
journal = {The British journal of dermatology},
volume = {169},
number = {6},
pages = {1322--1325},
abstract = {BACKGROUND: Peeling skin disease (PSD), a generalized inflammatory form of peeling skin syndrome, is caused by autosomal recessive nonsense mutations in the corneodesmosin gene (CDSN). OBJECTIVES: To investigate a novel mutation in CDSN. METHODS: A 50-year-old white woman showed widespread peeling with erythema and elevated serum IgE. DNA sequencing, immunohistochemistry, Western blot and real-time polymerase chain reaction analyses of skin biopsies were performed in order to study the genetics and to characterize the molecular profile of the disease. RESULTS: Histology showed hyperkeratosis and acanthosis of the epidermis, and inflammatory infiltrates in the dermis. DNA sequencing revealed a homozygous mutation leading to a premature termination codon in CDSN: p.Gly142*. Protein analyses showed reduced expression of a 16-kDa corneodesmosin mutant in the upper epidermal layers, whereas the full-length protein was absent. CONCLUSIONS: These results are interesting regarding the genotype-phenotype correlations in diseases caused by CDSN mutations. The PSD-causing CDSN mutations identified heretofore result in total corneodesmosin loss, suggesting that PSD is due to full corneodesmosin deficiency. Here, we show for the first time that a mutant corneodesmosin can be stably expressed in some patients with PSD, and that this truncated protein is very probably nonfunctional.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
BACKGROUND: Peeling skin disease (PSD), a generalized inflammatory form of peeling skin syndrome, is caused by autosomal recessive nonsense mutations in the corneodesmosin gene (CDSN). OBJECTIVES: To investigate a novel mutation in CDSN. METHODS: A 50-year-old white woman showed widespread peeling with erythema and elevated serum IgE. DNA sequencing, immunohistochemistry, Western blot and real-time polymerase chain reaction analyses of skin biopsies were performed in order to study the genetics and to characterize the molecular profile of the disease. RESULTS: Histology showed hyperkeratosis and acanthosis of the epidermis, and inflammatory infiltrates in the dermis. DNA sequencing revealed a homozygous mutation leading to a premature termination codon in CDSN: p.Gly142*. Protein analyses showed reduced expression of a 16-kDa corneodesmosin mutant in the upper epidermal layers, whereas the full-length protein was absent. CONCLUSIONS: These results are interesting regarding the genotype-phenotype correlations in diseases caused by CDSN mutations. The PSD-causing CDSN mutations identified heretofore result in total corneodesmosin loss, suggesting that PSD is due to full corneodesmosin deficiency. Here, we show for the first time that a mutant corneodesmosin can be stably expressed in some patients with PSD, and that this truncated protein is very probably nonfunctional. |
Delaby, Constance; Oustric, Vincent; Schmitt, Caroline; Muzeau, Francoise; Robreau, Anne-Marie; Letteron, Philippe; Couchi, Eric; Yu, Angel; Lyoumi, Saïd; Deybach, Jean-Charles; Puy, Herve; Karim, Zoubida; Beaumont, Carole; Grandchamp, Bernard; Demant, Peter; Gouya, Laurent Epistasis in iron metabolism: complex interactions between Cp, Mon1a, and Slc40a1 loci and tissue iron in mice Journal Article In: Mammalian Genome: Official Journal of the International Mammalian Genome Society, vol. 24, no. 11-12, pp. 427–438, 2013, ISSN: 1432-1777. @article{delaby_epistasis_2013,
title = {Epistasis in iron metabolism: complex interactions between Cp, Mon1a, and Slc40a1 loci and tissue iron in mice},
author = {Delaby, Constance and Oustric, Vincent and Schmitt, Caroline and Muzeau, Francoise and Robreau, Anne-Marie and Letteron, Philippe and Couchi, Eric and Yu, Angel and Lyoumi, Saïd and Deybach, Jean-Charles and Puy, Herve and Karim, Zoubida and Beaumont, Carole and Grandchamp, Bernard and Demant, Peter and Gouya, Laurent},
doi = {10.1007/s00335-013-9479-6},
issn = {1432-1777},
year = {2013},
date = {2013-12-01},
journal = {Mammalian Genome: Official Journal of the International Mammalian Genome Society},
volume = {24},
number = {11-12},
pages = {427--438},
abstract = {Disorders of iron metabolism are among the most common acquired and constitutive diseases. Hemochromatosis has a solid genetic basis and in Northern European populations it is usually associated with homozygosity for the C282Y mutation in the HFE protein. However, the penetrance of this mutation is incomplete and the clinical presentation is highly variable. The rare and common variants identified so far as genetic modifiers of HFE-related hemochromatosis are unable to account for the phenotypic heterogeneity of this disorder. There are wide variations in the basal iron status of common inbred mouse strains, and this diversity may reflect the genetic background of the phenotypic diversity under pathological conditions. We therefore examined the genetic basis of iron homeostasis using quantitative trait loci mapping applied to the HcB-15 recombinant congenic strains for tissue and serum iron indices. Two highly significant QTL containing either the N374S Mon1a mutation or the Ferroportin locus were found to be major determinants in spleen and liver iron loading. Interestingly, when considering possible epistatic interactions, the effects of Mon1a on macrophage iron export are conditioned by the genotype at the Slc40a1 locus. Only mice that are C57BL/10ScSnA homozygous at both loci display a lower spleen iron burden. Furthermore, the liver-iron lowering effect of the N374S Mon1a mutation is observed only in mice that display a nonsense mutation in the Ceruloplasmin (Cp) gene. This study highlights the existence of genetic interactions between Cp, Mon1a, and the Slc40a1 locus in iron metabolism, suggesting that epistasis may be a crucial determinant of the variable biological and clinical presentations in iron disorders.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Disorders of iron metabolism are among the most common acquired and constitutive diseases. Hemochromatosis has a solid genetic basis and in Northern European populations it is usually associated with homozygosity for the C282Y mutation in the HFE protein. However, the penetrance of this mutation is incomplete and the clinical presentation is highly variable. The rare and common variants identified so far as genetic modifiers of HFE-related hemochromatosis are unable to account for the phenotypic heterogeneity of this disorder. There are wide variations in the basal iron status of common inbred mouse strains, and this diversity may reflect the genetic background of the phenotypic diversity under pathological conditions. We therefore examined the genetic basis of iron homeostasis using quantitative trait loci mapping applied to the HcB-15 recombinant congenic strains for tissue and serum iron indices. Two highly significant QTL containing either the N374S Mon1a mutation or the Ferroportin locus were found to be major determinants in spleen and liver iron loading. Interestingly, when considering possible epistatic interactions, the effects of Mon1a on macrophage iron export are conditioned by the genotype at the Slc40a1 locus. Only mice that are C57BL/10ScSnA homozygous at both loci display a lower spleen iron burden. Furthermore, the liver-iron lowering effect of the N374S Mon1a mutation is observed only in mice that display a nonsense mutation in the Ceruloplasmin (Cp) gene. This study highlights the existence of genetic interactions between Cp, Mon1a, and the Slc40a1 locus in iron metabolism, suggesting that epistasis may be a crucial determinant of the variable biological and clinical presentations in iron disorders. |
Charlier, Caroline M.; Wu, Yuan-Ju; Allart, Sophie; Malnou, Cécile E.; Schwemmle, Martin; Gonzalez-Dunia, Daniel Analysis of Borna Disease Virus Trafficking in Live Infected Cells by Using a Virus Encoding a Tetracysteine-Tagged P Protein Journal Article In: J Virol, vol. 87, no. 22, pp. 12339–12348, 2013, ISSN: 1098-5514. @article{Charlier2013,
title = {Analysis of Borna Disease Virus Trafficking in Live Infected Cells by Using a Virus Encoding a Tetracysteine-Tagged P Protein},
author = {Caroline M. Charlier and Yuan-Ju Wu and Sophie Allart and Cécile E. Malnou and Martin Schwemmle and Daniel Gonzalez-Dunia},
doi = {10.1128/jvi.01127-13},
issn = {1098-5514},
year = {2013},
date = {2013-11-15},
urldate = {2013-11-15},
journal = {J Virol},
volume = {87},
number = {22},
pages = {12339--12348},
publisher = {American Society for Microbiology},
abstract = {<jats:title>ABSTRACT</jats:title>
<jats:p>Borna disease virus (BDV) is a nonsegmented, negative-stranded RNA virus characterized by noncytolytic persistent infection and replication in the nuclei of infected cells. To gain further insight on the intracellular trafficking of BDV components during infection, we sought to generate recombinant BDV (rBDV) encoding fluorescent fusion viral proteins. We successfully rescued a virus bearing a tetracysteine tag fused to BDV-P protein, which allowed assessment of the intracellular distribution and dynamics of BDV using real-time live imaging. In persistently infected cells, viral nuclear inclusions, representing viral factories tethered to chromatin, appeared to be extremely static and stable, contrasting with a very rapid and active trafficking of BDV components in the cytoplasm. Photobleaching (fluorescence recovery after photobleaching [FRAP] and fluorescence loss in photobleaching [FLIP]) imaging approaches revealed that BDV components were permanently and actively exchanged between cellular compartments, including within viral inclusions, albeit with a fraction of BDV-P protein not mobile in these structures, presumably due to its association with viral and/or cellular proteins. We also obtained evidence for transfer of viral material between persistently infected cells, with routing of the transferred components toward the cell nucleus. Finally, coculture experiments with noninfected cells allowed visualization of cell-to-cell BDV transmission and movement of the incoming viral material toward the nucleus. Our data demonstrate the potential of tetracysteine-tagged recombinant BDV for virus tracking during infection, which may provide novel information on the BDV life cycle and on the modalities of its interaction with the nuclear environment during viral persistence.</jats:p>},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
<jats:title>ABSTRACT</jats:title>
<jats:p>Borna disease virus (BDV) is a nonsegmented, negative-stranded RNA virus characterized by noncytolytic persistent infection and replication in the nuclei of infected cells. To gain further insight on the intracellular trafficking of BDV components during infection, we sought to generate recombinant BDV (rBDV) encoding fluorescent fusion viral proteins. We successfully rescued a virus bearing a tetracysteine tag fused to BDV-P protein, which allowed assessment of the intracellular distribution and dynamics of BDV using real-time live imaging. In persistently infected cells, viral nuclear inclusions, representing viral factories tethered to chromatin, appeared to be extremely static and stable, contrasting with a very rapid and active trafficking of BDV components in the cytoplasm. Photobleaching (fluorescence recovery after photobleaching [FRAP] and fluorescence loss in photobleaching [FLIP]) imaging approaches revealed that BDV components were permanently and actively exchanged between cellular compartments, including within viral inclusions, albeit with a fraction of BDV-P protein not mobile in these structures, presumably due to its association with viral and/or cellular proteins. We also obtained evidence for transfer of viral material between persistently infected cells, with routing of the transferred components toward the cell nucleus. Finally, coculture experiments with noninfected cells allowed visualization of cell-to-cell BDV transmission and movement of the incoming viral material toward the nucleus. Our data demonstrate the potential of tetracysteine-tagged recombinant BDV for virus tracking during infection, which may provide novel information on the BDV life cycle and on the modalities of its interaction with the nuclear environment during viral persistence.</jats:p> |
Lyoumi, Said; Lefebvre, Thibaud; Karim, Zoubida; Gouya, Laurent; Puy, Hervé PXR-ALAS1: a key regulatory pathway in liver toxicity induced by isoniazid-rifampicin antituberculosis treatment Journal Article In: Clinics and Research in Hepatology and Gastroenterology, vol. 37, no. 5, pp. 439–441, 2013, ISSN: 2210-741X. @article{lyoumi_pxr-alas1_2013,
title = {PXR-ALAS1: a key regulatory pathway in liver toxicity induced by isoniazid-rifampicin antituberculosis treatment},
author = {Lyoumi, Said and Lefebvre, Thibaud and Karim, Zoubida and Gouya, Laurent and Puy, Hervé},
doi = {10.1016/j.clinre.2013.06.010},
issn = {2210-741X},
year = {2013},
date = {2013-11-01},
journal = {Clinics and Research in Hepatology and Gastroenterology},
volume = {37},
number = {5},
pages = {439--441},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
|
Moulouel, Boualem; Houamel, Dounia; Delaby, Constance; Tchernitchko, Dimitri; Vaulont, Sophie; Letteron, Philippe; Thibaudeau, Olivier; Puy, Hervé; Gouya, Laurent; Beaumont, Carole; Karim, Zoubida Hepcidin regulates intrarenal iron handling at the distal nephron Journal Article In: Kidney International, vol. 84, no. 4, pp. 756–766, 2013, ISSN: 1523-1755. @article{moulouel_hepcidin_2013,
title = {Hepcidin regulates intrarenal iron handling at the distal nephron},
author = {Moulouel, Boualem and Houamel, Dounia and Delaby, Constance and Tchernitchko, Dimitri and Vaulont, Sophie and Letteron, Philippe and Thibaudeau, Olivier and Puy, Hervé and Gouya, Laurent and Beaumont, Carole and Karim, Zoubida},
doi = {10.1038/ki.2013.142},
issn = {1523-1755},
year = {2013},
date = {2013-10-01},
journal = {Kidney International},
volume = {84},
number = {4},
pages = {756--766},
abstract = {Hepcidin, the key regulatory hormone of iron homeostasis, and iron carriers such as transferrin receptor1 (TFR1), divalent metal transporter1 (DMT1), and ferroportin (FPN) are expressed in kidney. Whether hepcidin plays an intrinsic role in the regulation of renal iron transport is unknown. Here, we analyzed the renal handling of iron in hemochromatosis Hepc(-/-) and Hjv(-/-) mouse models, as well as in phenylhydrazine (PHZ)-treated mice. We found a marked medullary iron deposition in the kidneys of Hepc(-/-) mice, and iron leak in the urine. The kidneys of Hepc(-/-) mice exhibited a concomitant decrease in TFR1 and increase in ferritin and FPN expression. Increased FPN abundance was restricted to the thick ascending limb (TAL). DMT1 protein remained unaffected despite a significant decrease of its mRNA level, suggesting that DMT1 protein is stabilized in the absence of hepcidin. Treatment of kidney sections from Hepc(-/-) mice with hepcidin decreased DMT1 protein, an effect confirmed in renal cell lines where hepcidin markedly decreased (55)Fe transport. In the kidneys of Hjv(-/-) mice exhibiting low hepcidin expression, the iron overload was similar to that in the kidneys of Hepc(-/-) mice. However, in PHZ mice, iron accumulation resulting from hemoglobin leak was detected in the proximal tubule. Thus, kidneys exhibit a tissue-specific handling of iron that depends on the extra iron source. Hepcidin may control the expression of iron transporters to prevent renal iron overload.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Hepcidin, the key regulatory hormone of iron homeostasis, and iron carriers such as transferrin receptor1 (TFR1), divalent metal transporter1 (DMT1), and ferroportin (FPN) are expressed in kidney. Whether hepcidin plays an intrinsic role in the regulation of renal iron transport is unknown. Here, we analyzed the renal handling of iron in hemochromatosis Hepc(-/-) and Hjv(-/-) mouse models, as well as in phenylhydrazine (PHZ)-treated mice. We found a marked medullary iron deposition in the kidneys of Hepc(-/-) mice, and iron leak in the urine. The kidneys of Hepc(-/-) mice exhibited a concomitant decrease in TFR1 and increase in ferritin and FPN expression. Increased FPN abundance was restricted to the thick ascending limb (TAL). DMT1 protein remained unaffected despite a significant decrease of its mRNA level, suggesting that DMT1 protein is stabilized in the absence of hepcidin. Treatment of kidney sections from Hepc(-/-) mice with hepcidin decreased DMT1 protein, an effect confirmed in renal cell lines where hepcidin markedly decreased (55)Fe transport. In the kidneys of Hjv(-/-) mice exhibiting low hepcidin expression, the iron overload was similar to that in the kidneys of Hepc(-/-) mice. However, in PHZ mice, iron accumulation resulting from hemoglobin leak was detected in the proximal tubule. Thus, kidneys exhibit a tissue-specific handling of iron that depends on the extra iron source. Hepcidin may control the expression of iron transporters to prevent renal iron overload. |