Unknown,Transcriptomics,Genomics,Proteomics

Dataset Information

Microarray of reconstructed epidermis from skin models made with cells from African and Caucasian Skin type

ABSTRACT: The aim of this study was to analyze the in vitro biological epidermal processes occurring in reconstructed skins using cells from breast skin of African and Caucasian skin type color. A exploration of mRNA expression levels in the epidermis of reconstructed skin was undertaken to elucidate the differential in vitro functions of keratinocytes. The reconstruction of skin models was made with keratinocytes and fibroblasts from four different donors per skin type and experiments were conducted in triplicate for each donor. At the end of culture, the epidermis from reconstructed skin was manually separated from the dermal equivalent part in order to analyse gene expression in keratinocytes only. RNA samples were labelled with biotin and hybridation was performed on Affymetrix Human Genome U133 + PM Array Plates.

ORGANISM(S): Homo sapiens

SUBMITTER: Abed Kahina

PROVIDER: E-MTAB-9433 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Publications

Reconstructed Skin Models Revealed Unexpected Differences in Epidermal African and Caucasian Skin.

Girardeau-Hubert Sarah S Deneuville Céline C Pageon Hervé H Abed Kahina K Tacheau Charlotte C Cavusoglu Nükhet N Donovan Mark M Bernard Dominique D Asselineau Daniel D

Scientific reports 20190515 1

Clinical observations of both normal and pathological skin have shown that there is a heterogeneity based on the skin origin type. Beside external factors, intrinsic differences in skin cells could be a central element to determine skin types. This study aimed to understand the in vitro behaviour of epidermal cells of African and Caucasian skin types in the context of 3D reconstructed skin. Full-thickness skin models were constructed with site matched human keratinocytes and papillary fibroblast ...[more]

PMID: 31092846

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Project description:Despite their key role in immunity our understanding of primary and secondary lymphoid stromal cell heterogeneity and ontogeny remains limited. Here, using genome-wide expression profiling and phenotypic and localization studies, we identify a functionally distinct subset of BP3-PDPN+PDGFRÎ²+/Î±+CD34+ stromal adventitial cells in both lymph nodes and thymus that is located within the perivascular niche surrounding PDPN-PDGFRÎ²+/Î±-Esam-1+ITGA7+ pericytes. In re-aggregate organ grafts adult CD34+ adventitial cells gave rise to multiple thymic and lymph node mesenchymal subsets including pericytes, FRC-, MRC- and FDC-like cells, the development of which was lymphoid environment dependent. During thymic ontogeny pericytes developed from a transient population of BP3-PDPN+PDGFRÎ²+/Î±+CD34-/lo anlage-seeding progenitors that subsequently up-regulated CD34 and we provide evidence suggesting that similar embryonic progenitors give rise to lymph node mesenchymal subsets. These findings extend the current understanding of lymphoid mesenchymal cell heterogeneity and highlight a role of the CD34+ vascular adventitia as a potential ubiquitous source of lymphoid stromal precursors in postnatal tissues. To comprehensively study the differences and similarities between mesenchymal stromal subsets in the thymus and lymph nodes, global gene expression analysis was performed on sorted PDPN-, BP-3-PDPN+ and BP-3+PDPN+ PDGFRb+ lymph node mesenchymal cells (LNMC) as well as PDPN- and BP-3-PDPN+ PDGFRb+ thymic mesenchymal cells (TMC) from 2 w old mice by microarray. Total RNA was prepared from TMC and LNMC (pooled inguinal, brachial and axillary LN) subsets sorted from 3 (TMC) and 10-11 (LNMC) 2 weeks old mice per experiment. Isolated RNA from 3 individual experiments was amplified and prepared for hybridization to the Affymetrix Mouse Gene 1.1 ST Array at a genomics core facility: Center of Excellence for Fluorescent Bioanalytics (KFB, University of Regensburg, Germany)

Dataset Information

Microarray of reconstructed epidermis from skin models made with cells from African and Caucasian Skin type

Publications

Reconstructed Skin Models Revealed Unexpected Differences in Epidermal African and Caucasian Skin.

Similar Datasets

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