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Metabolomics,Unknown,Transcriptomics,Genomics,Proteomics

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Global profiling of human hair follicle scalp dermal papilla cells using Affymetrix microarrays

ABSTRACT: Dermal papilla cells isolated from the human hair follicle are capable of inducing hair growth in recipient epithelia. However, demonstrating disparity from rodent dermal papilla, human cells lose this inductive competance immediately upon growth in culture under normal growth conditions. We grew dermal papilla cells in hanging drop cultures that are morphologically akin to intact dermal papilla, and found that by enhancing the environment for aggregation, we could restore the inductive capacity of human dermal papilla cells in culture. The underlying genes that regulate the inductive potential of dermal papilla cells is not well understood, and we sought to use global profiling to identify key genes and pathways related to inductive competance within dermal papilla cells. We used Affymetrix microarrays to profile human dermal papilla cells in both hair inducing, and non-hair inducing states. Affymetrix microarrays were used to to perform profiling of human dermal papilla cells, both as intact tissues (freshly isolated from scalp), and at several stages in subsequent two dimensional culture; cell explant outgrowths (p0), cells at passage 1 (p1), passage 3 (p3) and passage 5 (p5). RNA was isolated from cultured cells 72 hours after feeding. Cells at passage 3 were also grown in hanging drops to form dermal spheroids, that were used for RNA collection 48 hours after establishment. All experiments were performed using tissue from three biological replicates (#D5, D6, D7),

ORGANISM(S): Homo sapiens

SUBMITTER: Claire Higgins

PROVIDER: E-GEOD-44765 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress

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Global profiling of human hair follicle scalp dermal papilla cells using Affymetrix microarrays

Project description:Dermal papilla cells isolated from the human hair follicle are capable of inducing hair growth in recipient epithelia. However, demonstrating disparity from rodent dermal papilla, human cells lose this inductive competance immediately upon growth in culture under normal growth conditions. We grew dermal papilla cells in hanging drop cultures that are morphologically akin to intact dermal papilla, and found that by enhancing the environment for aggregation, we could restore the inductive capacity of human dermal papilla cells in culture. The underlying genes that regulate the inductive potential of dermal papilla cells is not well understood, and we sought to use global profiling to identify key genes and pathways related to inductive competance within dermal papilla cells. We used Affymetrix microarrays to profile human dermal papilla cells in both hair inducing, and non-hair inducing states.

2013-10-20 | GSE44765 | GEO

Human dermal papilla cell culture medium iTRAQ

Project description:Alopecia is an exceedingly prevalent problem and lacks effective therapy. Recently, research has focused on early-passage dermal papilla cells (DPCs), which have hair inducing activity both in vivo and in vitro. Our previous study indicated that factors secreted from early-passage DPCs contribute to hair follicle (HF) regeneration. To identify which factors are responsible for HF regeneration and why late-passage DPCs lose this potential，we collected 48-h-culture medium (CM) from both of passage 3 and 9 DPCs and subcutaneously injected the DPC-CM into NU/NU mice. Passage 3 DPC-CM induced HF regeneration, based on the emergence of a white hair coat, but passage 9 DPC-CM not. In order to identify the key factors responsible for hair inductive capacity, CM from passage 3 and 9 DPCs was analyzed by iTRAQ-based quantitative proteomic technology. We identified 1360 proteins, of which 213 proteins were differentially expressed between CM from early-passage vs. late-passage DPCs, including SDF1, MMP3, biglycan and LTBP1.Further analysis indicated that the differentially-expressed proteins regulated the Wnt, TGF-β and BMP signaling pathways, which directly and indirectly participate in HF morphogenesis and regeneration. Subsequently, we selected 19 proteins for further verification by multiple reaction monitoring (MRM) between the two types of CM. These results would be used to identify the key factors for inducing HF regeneration and reveal the molecular mechanisms of losing inductive ability of DPCs. Furthermore, it is possible to explore some drugs for alopecia in the clinic according to this secretome date analysis.

2018-10-26 | PXD004201 | Pride

Gene expression profiling of the intact dermal sheath cup of human hair follicle

Project description:The dermal sheath cup is the peribulbar component of the hair follicle dermal sheath, and has hair inductive potential similar to the dermal papilla. To characterize it in comparison with other mesenchymal follicle tissuesparts, we performed gene expression profiling of intact dermal sheath cups, which were separated from hair follicles by microdissection. Gene expression profiles of the dermal sheath cup, dermal papilla and upper dermal sheath were compared. We identified a dermal sheath cup signature composed of 32 upregulated genes, which included extracellular matrix components and BMP binding mollecules, while dermal papilla signature included a number of dermal papilla signature genes which had already reported. Analyses of upstream regulators showed that TGF- b1 is a putative regulator of these genes. These results suggest some of molecular mechanism that contributes to human dermal sheath cup properties, which could be useful for hair follicle bioengineering.

2020-02-22 | GSE95219 | GEO

Introduction of the TERT and BMI1 Genes into Murine Dermal Papilla Cells Ameliorates Hair Inductive Activity

Project description:Dermal papilla cells (DPCs) are located at the bottom of hair follicles and play important roles on hair induction by interacting with epidermal cells. DPCs are promising cell sources for hair regeneration therapy for alopecia patients. However, freshly isolated DPCs rapidly lose their hair inductive activity and proliferative potential under culture conditions. We examined the effects of telomere reverse transcriptase (TERT) and B-cell-specific Moloney murine leukemia virus insertion region 1 (BMI1) on extending the life span of murine DPCs as well as on hair inductive activity.TERT and BMI1 genes were introduced into murine DPCs using lentivirus vectors. Hair inductive activity of transfected DPCs (t-DPCs) was determined by in vivo chamber assay in nude mice. Transcripts between intact dermal papillae (DPs) and cultured DPCs were compared by microarray analysis.

2017-12-06 | GSE107702 | GEO

human dermal papilla cells were grown in spheres and treated with vehicle control, ruxolitinib and tofacitinib for 2 days

Project description:Dermal papilla cells derived from 3 individual donors were propagated and cultured using the hanging drop method (Higgins et al., PNAS 2013). Cells were cultured in drugs for two days

2018-05-26 | GSE69299 | GEO

Comparative gene expression analysis of 2 subpopulations of dermal papilla cells.

Project description:Different types of hair follicles can be found in the skin of mice. It is believed that the signals that control hair follicle differentiation arise from cells in a structure called the dermal papilla. Understanding the nature of those signals is of interest for the biology of the normal tissue. We have developed a technique for isolation of dermal cells by enzymatic digestion of intact skin. We have identified two subpopulations of cells that can be separated by FACS. The Sox2-positive CD133-positive cells are found exclusively in the dermal papillae of guard/awl/auchene hairs, while Sox2-negative, CD133-positive cells are found in the other hair follicle types. We compared these populations with unfractionated dermal cells. We isolated the following 3 populations of cells from the back skin of neonatal mice (P2) by Flow Cytometry: 1) GFP-CD133- Total dermal cells 2) GFP-CD133+ Dermal Papilla cells 3) GFP+CD133+ Dermal Papilla cells The yield is approximately 50,000 cells of each population.

2009-06-26 | E-GEOD-16801 | biostudies-arrayexpress

Gene expression data of human dermal pilla cells, human induced pluripotent stem cell-derived CD271+CD90+ mesenchymal stem cells before and after the induction toward dermal papilla cells

Project description:To assess if human induced pluripotent stem cell-derived mesenchymal stem cells (hiPSC-MSCs) could be induce to acquire dermal papilla (DP) properties (especially hair inductive capacity), hiPSCs were initially programmed in serum-free MSC medium with FGF, TGFbeta and PDGF. Subsequently, hiMSCs were exposed to retinoic acid and activators of WNT, BMP and FGF signaling pathways. Global gene expression profiles were compared among primarily cultured human DP cells, hiPSC-MSCs before and after induction.

2015-01-01 | GSE61511 | GEO

Transcription profiling of mouse hair follicles in the 2nd telogen to anagen transition

Project description:Hair Follicle regeneration relies on both epithelial components (bulge and hair germ cells) and a mesenchymal one (dermal papilla cells). We used microarrays to detail the global programme of gene expression underlying organ regeneration at the transition between quiescent stages (early and middle telogen) and the initiation of a new growth (late telogen). Experiment Overall Design: These microarray at the 3 different stages were designed to identify signals released by the mesenchymal dermal papilla cells to activate epithelial growth, their target genes in the hair germ and bulge compartments, and to get at gene signature differences and similarities between hair germ and bulge cells.

2009-03-25 | E-GEOD-15185 | biostudies-arrayexpress

Gene expression profiling of adult hair follicle dermal stem cells and progeny, dermal sheath and dermal papilla cells

Project description:Here we have developed a novel FACS strategy to prospectively isolate hair follicle dermal stem cells, dermal sheath and dermal papilla cells from adult skin initiating synchronous hair follicle regeneration and identified Hic1 as a marker of hfDSCs and Rspondins as stimulators of hfDSCs and epithelial cells, and subsequently hair follicle regeneration

2020-02-03 | GSE109256 | GEO

Expression data of human dermal papilla cell with or without beta-estradiol

Project description:The dermal papilla plays a key role in the regulation of the hair biology. Accordingly, human dermal papilla cells (hDPCs) may be functionally impaired in female pattern hair loss. A previous observation that beta-estradiol (E2) increased hair density in ovariectomized mice suggested that E2 might modulate the biological properties of hDPCs. Therefore, to further explore the effect of E2 on hDPCs, a global gene expression analysis was conducted.

2018-04-22 | GSE102949 | GEO

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