Project description:To explore the biological changes of keratinocytes in condyloma acuminata (CA) warts, we performed mRNA and lncRNA expression profiling of keratinocytes from normal skins and warts of condyloma acuminata patients to compare the gene expression.
Project description:Affymetrix SNP arrays were performed according to the manufacturer's directions on DNA extracted from human skin keratinocytes derived from healthy donors, as well as from telomerase immortalised human skin keratinocytes (N/TERT), transduced with mock, EGFP, or EGFP-GLI2DeltaN transgenes to compare chromosomal ploidy status. Affymetrix SNP arrays were performed according to the manufacturer's directions on DNA extracted from human skin keratinocytes derived from healthy donors, as well as from telomerase immortalised human skin keratinocytes (N/TERT) to compare chromosomal ploidy status
Project description:The morphology and the behavior of skin and oral tissue keratinocytes are different. One significant dissimilarity between the two sites is the response to injury. Oral and skin keratinocytes have intrinsic differences in the response to injury and such differences are reflected in gene expression profiles. We used microarrays to investigate differences in global gene expression patterns between baseline skin and oral epithelium sheets without their underlying connective tissue. Paired skin and oral epithelium was separated from the dermis for RNA extraction and hybridization on Affymetrix microarrays. Skin epidermal tissues were obtained from the tail of mice and oral epidermal tissues were obtained from the hard palate. Enzymatically isolated epithelium was used for analysis.
Project description:Affymetrix SNP arrays were performed according to the manufacturer's directions on DNA extracted from human skin keratinocytes derived from healthy donors, as well as from telomerase immortalised human skin keratinocytes (N/TERT), transduced with mock, EGFP, or EGFP-GLI2DeltaN transgenes to compare chromosomal ploidy status.
Project description:The morphology and the behavior of skin and oral tissue keratinocytes are different. One significant dissimilarity between the two sites is the response to injury. Oral and skin keratinocytes have intrinsic differences in the response to injury and such differences are reflected in gene expression profiles. We used microarrays to investigate differences in global gene expression patterns between baseline skin and oral epithelium sheets without their underlying connective tissue.
Project description:During epithelial tissue morphogenesis, developmental progenitor cells undergo dynamic adhesive and cytoskeletal remodeling to trigger proliferation and migration. Transcriptional mechanisms that restrict such mild form of epithelial plasticity to maintain lineage-restricted differentiation in committed epithelial tissues are poorly understood. Here we report that simultaneous ablation of transcriptional repressor-encoding Ovol1 and Ovol2 results in expansion and blocked terminal differentiation of embryonic epidermal progenitor cells. Conversely, mice overexpressing Ovol2 in their skin epithelia exhibit precocious differentiation accompanied by smaller progenitor cell compartments. We show that Ovol1/2-deficient epidermal cells fail to undertake alpha-catenin–driven actin cytoskeletal reorganization and adhesive maturation, and exhibit changes that resemble epithelial-to-mesenchymal transition (EMT). Remarkably, these alterations as well as defective terminal differentiation are reversed upon depletion of EMT-promoting transcriptional factor Zeb1. Collectively, our findings reveal Ovol-Zeb1-a-catenin sequential repression and highlight novel functions of Ovol as gatekeepers of epithelial adhesion and differentiation by inhibiting progenitor-like traits and epithelial plasticity. Isolated keratinocytes from control, Ovol1 knockout and Ovol1/2 double knockout were physically isolated for RNA extraction and hybridization on Affymetrix microarrays. In order to identify primary changes, we isolated the keratinocytes from mouse skin and allowed them to grow in culture for 2-5 days.
Project description:To investigate whether skin bacteria might influence the expression of selected genes, we co-cultured human keratinocytes with S. epidermidis, an abundant commensal in human skin and performed RNA sequencing analysis.
Project description:Hidradenitis suppurativa (HS) is a highly prevalent, morbid inflammatory skin disease with limited treatment options. The major cell types and inflammatory pathways in skin of HS patients are poorly understood. We profiled via scRNASeq myeloid cells and keratinocytes sort-purified from two healthy skin samples and two samples with HS pathology to determine major cell types and transcriptional pathways altered in HS.
Project description:We want to identifiy microRNAs modulated by aging in human primary keratinocytes prepared from skin samples from individuals of various age