GEO DataSets

(Submitter supplied) The epidermis and associated appendages ensure a number of critical functions necessary for survival and social interactions. Perturbations of epidermal stem cell homeostasis lead to a variety of skin diseases affecting humans and dogs. Therefore, the establishment of an in vitro system to investigate canine epidermal stem cells, representing a model for human diseases, is essential. Here we report the establishment and characterization of organoids derived from microdissected canine hair follicles (HFs) and interfollicular epidermal (IFE). more...

Organism:

Canis lupus familiaris

Type:

Expression profiling by high throughput sequencing

Platform:

GPL21400

23 Samples

Download data: CSV

(Submitter supplied) Mammalian epidermal stem cells maintain homeostasis of skin epidermis and contribute to its regeneration throughout adult life. While two-dimensional mouse epidermal stem cell cultures have been established decades ago, a long-term, feeder cell- and serum-free culture system recapitulating murine epidermal architecture has not been available. Here we describe an epidermal organoid culture system that allows long-term, genetically stable expansion of adult epidermal stem cells. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19057

32 Samples

Download data: CSV

(Submitter supplied) An essential function of the human epidermis is the maintenance of a protective barrier against the environment. As a consequence, keratinocytes, which make up this layer of the skin, undergo an elaborate process of self-renewal, terminal differentiation and cell death. Misregulation of these processes can lead to several human diseases including psoriasis and basal cell and squamous cell carcinomas. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Dataset:

GDS2732

Platform:

GPL96

18 Samples

Download data: CEL

Analysis of epidermal keratinocytes at various time points up to 48 hours following treatment with 2-(3,4,5-trimethoxyphenylamino)-pyrrolo[2,3-d]pyrimidine (PP). PP induces the terminal differentiation of epidermal keratinocytes. Results provide insight into the mechanism of action of PP.

Organism:

Homo sapiens

Type:

Expression profiling by array, count, 2 agent, 5 time sets

Platform:

GPL96

Series:

GSE6932

18 Samples

Download data: CEL

(Submitter supplied) The skin epidermis is a highly compartmentalised tissue consisting of a cornifying epithelium called the interfollicular epidermis (IFE) and associated hair follicles (HFs). Several stem cell populations have been described that mark specific sub compartments in the skin but none of them is IFE-specific. Here we identify Troy as a marker of IFE and HF infundibulum basal layer cells in embryonic and adult human and mouse epidermis. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19057

8 Samples

Download data: CSV

(Submitter supplied) Several methods for generating human-skin-equivalent (HSE) organoid cultures are in use to study skin biology; however, few studies thoroughly characterize these systems. To fill this gap, we use single-cell transcriptomics to compare in vitro HSEs, xenograft HSEs, and in vivo epidermis. By combining differential gene expression, pseudotime analyses, and spatial localization, we reconstruct HSE keratinocyte differentiation trajectories that recapitulate known in vivo epidermal differentiation pathways and show that HSEs contain major in vivo cellular states. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platforms:

GPL20301 GPL24676

6 Samples

Download data: MTX, TSV

(Submitter supplied) The formation of tissue patterns is critical for organ functions in development and regeneration. To advance the use of organoids for organ regeneration, we learn principles that govern the skin organoids to regenerate hairs. We show the formation of epidermal-dermal coupled cysts function as competent morphogenetic units (CMU) which harbor the ability of skin organoids to regenerate. ScRNA-sequencing shows the emergence of cell types and new cell interactions during CMU formation. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24247

5 Samples

Download data: H5

(Submitter supplied) This SuperSeries is composed of the SubSeries listed below.

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19057

40 Samples

Download data: MTX, TSV, TXT

(Submitter supplied) Purpose: To unravel the molecular heterogeneity and characterise cell states of LRC/Non-LRC domains in interfollicular epidermis in vivo Methods: We performed 10x genomics single-cell RNA sequencing (scRNA-seq) of FACS purified basal (Sca1+/alpha6-integrin+) IFE cells as H2BGFP LRCs, mid-LRCs, and non-LRCs from K5-tTA x pTRE-H2BGFP mice. Single-cell suspension from back (2-week chase) and tail skin (3-week chase) was processed for the barcoded single-cell 3′ cDNA libraries generation using Chromium Single Cell 3′ gel bead and library Kit v3. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19057

12 Samples

Download data: MTX, TSV

(Submitter supplied) Purpose: To unravel the molecular heterogeneity of distinct epidermal populations in interfollicular epidermis (IFE) in vivo Methods: We performed bulk RNA sequencing of FACS purified basal (Sca1+/alpha6-integrin+) IFE cells enriched in Slc1a3/Dlx1/Aspm CreER marked lineages. We used >10000 tdTomato+/Sca1+/α6-int+ (basal) cells from both back and tail skin at 2-weeks post TM induction from each of four CreER mouse lines and normalized them to Sca1+/α6-int+ sorted from the same mouse. more...

Organism:

Mus musculus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL19057

28 Samples

Download data: TXT