GEO DataSets

(Submitter supplied) Palmoplantar skin is structurally and functionally unique, but the transcriptional programs driving this specialization are unknown. Here, we exploit single-cell RNA-sequencing of human palm, sole, and hip skin to describe the distinguishing characteristics of palmoplantar and non-palmoplantar skin while also uncovering previously unappreciated differences between palmar and plantar sites. Our approach reveals downregulation of diverse immunological processes and decreased immune cell populations in palmoplantar skin, highlighting an altered immune environment in the skin of the palms and soles. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL24676

12 Samples

Download data: TAR

(Submitter supplied) Palmoplantar skin is structurally and functionally unique, but the transcriptional programs driving this specialization are unknown. Here, we exploit bulk and single-cell RNA-sequencing of human palm, sole, and hip skin to describe the distinguishing characteristics of palmoplantar and non-palmoplantar skin while also uncovering previously unappreciated differences between palmar and plantar sites. Our approach reveals downregulation of diverse immunological processes and decreased immune cell populations in palmoplantar skin, highlighting an altered immune environment in the skin of the palms and soles. Further, we identify specific palmoplantar and non-palmoplantar fibroblast populations that appear to orchestrate key differences in cell-cell communication in palm, sole, and hip. Dedicated analysis of epidermal keratinocytes highlights major differences in basal cell fraction among the three sites and validates the presence of a more differentiated, cycling basal population. Finally, our data demonstrate the existence of two spinous keratinocyte populations that constitute two parallel, site-selective epidermal differentiation trajectories. Together, these results provide a deep characterization of the highly adapted palmoplantar skin and contribute new insights into the fundamental biology of human skin.

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL20301

30 Samples

Download data: TXT

(Submitter supplied) During acute cutaneous inflammation in diseases such as atopic eczema there are alterations in the microbiome as well as histological and ultrastructural changes to the stratified epidermis, but the precise interaction between the keratinocyte proliferation and differentiation status and the skin microbiome has not been fully explored. We hypothesised that the skin microbiome contributes to regulation of keratinocyte differentiation and can modify antimicrobial responses. more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing

Platform:

GPL22790

6 Samples

Download data: H5AD

(Submitter supplied) Skin colonisation of varied communities of commensal microorganisms, such as Staphylococcus aureus (SA), Staphylococcus epidermidis (SE) and Staphylococcus capitis (SC) form the microbiome; a necessity for healthy skin. The skin changes characteristic of atopic dermatitis, a common inflammatory skin disease, have been shown to provide a favourable niche for SA colonisation. We utilised a reconstructed human epidermal (RHE) model recapitulating the stratified anatomy of the epidermis on which to test host responses to bacterial colonisation. more...

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL20844

32 Samples

Download data: TXT

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

Organism:

Homo sapiens; synthetic construct

Type:

Non-coding RNA profiling by array; Expression profiling by array

Platforms:

GPL17586 GPL19117

14 Samples

Download data: CEL

(Submitter supplied) mRNA and miRNA transcription changes during epidermal differentiation and between lesional psoriatic skin and normal skin were analysed

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL17586

6 Samples

Download data: CEL

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

Organism:

synthetic construct; Homo sapiens

Type:

Non-coding RNA profiling by array; Expression profiling by array

Platforms:

GPL16686 GPL19117

18 Samples

Download data: CEL

(Submitter supplied) mRNA and miRNA transcription changes during epidermal differentiation were analysed using proliferating keratinoctes (pKC), differentiated keratinocytes (dKC) and skin equivalents (SE)

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL16686

9 Samples

Download data: CEL

(Submitter supplied) mRNA and miRNA transcription changes during epidermal differentiation were analysed using proliferating keratinoctes (pKC), differentiated keratinocytes (dKC) and skin equivalents (SE)

Organism:

synthetic construct; Homo sapiens

Type:

Non-coding RNA profiling by array

Platform:

GPL19117

9 Samples

Download data: CEL

(Submitter supplied) mRNA and miRNA transcription changes during epidermal differentiation and between lesional psoriatic skin and normal skin were analyzed

Organism:

synthetic construct; Homo sapiens

Type:

Non-coding RNA profiling by array

Platform:

GPL19117

8 Samples

Download data: CEL

(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) 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) DLX3 is a homeodomain transcription factor involved in epidermal differentiation. Here we investigated the distribution of DLX3 DNA binding sites in suprabasal differentiating keratinocytes using ChIP-seq.

Organism:

Mus musculus

Type:

Genome binding/occupancy profiling by high throughput sequencing

Platform:

GPL13112

3 Samples

Download data: BED, BEDGRAPH

(Submitter supplied) Epidermal keratinocytes form cornified skin appendages such as scutate scales on the legs of birds. Here, we investigated the molecular pathways of keratinocyte differentiation in chicken scutate scales by single cell transcriptomics. We identified two distinct populations of differentiated keratinocytes. The first type of differentiated keratinocytes is characterized by mRNAs encoding scale-type corneous beta-proteins (CBPs), also known as beta-keratins and cysteine-rich keratins, indicating that these cells form hard scales. more...

Organism:

Gallus gallus

Type:

Expression profiling by high throughput sequencing

Platform:

GPL22626

3 Samples

Download data: MTX, TSV

(Submitter supplied) In an RNAseq analysis, we have identified the HOXC13-AS significantly downregulated in wound biopsies and epidermal cells compared to skin counterparts. To study the genes regulated by HOXC13-AS, we transfected HOXC13-AS siRNA pool into human primary epidermal keratinocytes to knockdown HOXC13-AS and induced cell differentiation for 3 days by 1.5 mM calcium. We performed a global transcriptome analysis of keratinocytes upon the HOXC13-AS knockdown using Affymetrix arrays.

Organism:

Homo sapiens

Type:

Expression profiling by array

Platform:

GPL24324

6 Samples

Download data: CEL

(Submitter supplied) Due to microRNAs' (miRs) important functions and high potential for disease diagnosis and therapy, increasing efforts have been put to understand their role in wound repair and identify targetable miRs for wound treatment. However, lack of knowledge about miR-mediated gene expression in human wound tissues hinders the recognition of clinically relevant miRs. Here we profiled genome-wide miR and mRNA expression by RNA-sequencing in the same set of samples from human normal acute wounds and chronic non-healing venous ulcers (VU). more...

Organism:

Homo sapiens

Type:

Expression profiling by high throughput sequencing; Non-coding RNA profiling by high throughput sequencing

Platforms:

GPL16791 GPL20301

40 Samples

Download data: TXT

(Submitter supplied) The type I intermediate filament keratin 16 (Krt16 gene; K16 protein) is constitutively expressed in ectoderm-derived appendages and volar palmar/plantar epidermis, and is otherwise inducibly expressed in non-volar epidermis when skin epithelia are under stress. Mutations at the (human) KRT16 locus can cause pachyonychia congenita (PC) and focal non-epidermolytic palmoplantar keratoderma (PPK), which each entail painful calluses on palmar and/or plantar skin. more...

Organism:

Mus musculus

Type:

Expression profiling by array

Platform:

GPL20775

8 Samples

Download data: CEL