Homo sapiens
Ontology highlight
ABSTRACT:
PROVIDER: PRJNA305429 | ENA |
REPOSITORIES: ENA
Similar Datasets
Project description:lesional and non-lesional skin from vitiligo patients
2016-11-01 | GSE75819 | GEO
Project description:Vitiligo is an acquired depigmentation of the skin inducing a marked alteration of the quality of life of affected individuals. Halting the disease progression and repigmenting the lesional skin represent the two faces of the therapeutic challenge in vitiligo. So far, none of them has been successfully addressed. Oxidative stress and immune system in genetically predisposed individuals participate to the complex pathophysiology of vitiligo. We performed a transcriptome and proteomic analysis on lesional, perilesional and non-depigmented skin of vitiligo patients compared to matched skin controls of healthy subjects. Our results show that the WNT pathway, implicated in melanocytes differentiation, was found to be altered in vitiligo skin. We demonstrated that the oxidative stress decreases WNT expression/activation in keratinocytes and in melanocytes. We developed an ex vivo skin model that remains functional up to 15 days. We then confirmed the decreased activation of the WNT pathway in human skin subjected to oxidative stress. Finally, using pharmacological agents that activate the WNT pathway, we treated the ex vivo depigmented skins from vitiligo patients and successfully induced the differentiation of resident stem cells into pre-melanocytes supporting further exploration of WNT activators to repigment vitiligo lesions. Total of 40 chips. 10 patients (3 biospies per patient: 1 lesional , 1 perilesional and 1 non lesional) ; 10 healthy volunteers (1biopsy in matched anatomical areas)
2015-10-01 | E-GEOD-65127 | biostudies-arrayexpress
Project description:Vitiligo is an acquired depigmentation of the skin inducing a marked alteration of the quality of life of affected individuals. Halting the disease progression and repigmenting the lesional skin represent the two faces of the therapeutic challenge in vitiligo. So far, none of them has been successfully addressed. Oxidative stress and immune system in genetically predisposed individuaLesionalparticipate to the complex pathophysiology of vitiligo. We performed a transcriptome and proteomic analysis on lesional, perilesional and non-depigmented skin of vitiligo patients compared to matched skin controLesionalof healthy subjects. Our results show that the WNT pathway, implicated in melanocytes differentiation, was found to be altered in vitiligo skin. We demonstrated that the oxidative stress decreases WNT expression/activation in keratinocytes and in melanocytes. We developed an ex vivo skin model that remains functional up to 15 days. We then confirmed the decreased activation of the WNT pathway in human skin subjected to oxidative stress. Finally, using pharmacological agents that activate the WNT pathway, we treated the ex vivo depigmented skins from vitiligo patients and successfully induced the differentiation of resident stem celLesionalinto pre-melanocytes supporting further exploration of WNT activators to repigment vitiligo lesions.
2015-10-01 | GSE65127 | GEO
Project description:Vitiligo is a skin disorder due to loss of melanocytes. There are depigmented lesions mixed with normally-pigmented non-lesions. Gene expression profiles have been different between lesional skin and non-lesional skin. Primary cilia have been involved in various cellular functions including cell survival. We used microarrays to detail the programme of gene expression underlying melanocyte survival in vitiligo and identified distinct cilia-related genes involved in melanocyte apoptosis.
2021-12-31 | GSE168325 | GEO
Project description:We performed scRNA-seq analyses on patient matched lesional and nonlesional skin from viitiligo patients using the 10x genomics platform to examine different cell populations and keratinocyte states that may contribute to vitiligo disease persistence.
2022-05-20 | GSE203262 | GEO
Project description:Punch biopsies from patients with cSCC (n=3) and non-lesional skin (n=3) were included in the study. Microarray based circRNA expression profiles were acquired using Arraystar circRNA Arrays V. 2.0 screening for 13.617 distinct human circRNA candidates. We identified circRNAs differentially expressed in cSCC compared to non-lesional skin (control).
2016-06-18 | GSE74758 | GEO
Project description:Punch biopsies from patients with BCC (n=3) and non-lesional skin (n=3) were included in the study. Microarray based circRNA expression profiles were acquired using Arraystar circRNA Arrays V. 2.0 screening for 13,617 distinct human circRNA candidates. We identified circRNAs differentially expressed in BCC compared to non-lesional skin (control).
2016-04-21 | GSE74756 | GEO
Project description:This study includes RNAseq data of lesional and autologous non-lesional skin from patients with non-communicable inflammatory skin diseases, including psoriasis, nummular eczema and atopic dermatitis.
2024-06-20 | GSE154200 | GEO
Project description:Analysis of ex vivo isolated lymphatic endothelial cells from the dermis of patients to define type 2 diabetes-induced changes. Results preveal aberrant dermal lymphangiogenesis and provide insight into its role in the pathogenesis of persistent skin inflammation in type 2 diabetes. The ex vivo dLEC transcriptome reveals a dramatic influence of the T2D environment on multiple molecular and cellular processes, mirroring the phenotypic changes seen in T2D affected skin. The positively and negatively correlated dLEC transcripts directly cohere to prolonged inflammatory periods and reduced infectious resistance of patients´ skin. Further, lymphatic vessels might be involved in tissue remodeling processes during T2D induced skin alterations associated with impaired wound healing and altered dermal architecture. Hence, dermal lymphatic vessels might be directly associated with T2D disease promotion. Global gene expression profile of normal dermal lymphatic endothelial cells (ndLECs) compared to dermal lymphatic endothelial cells derived from type 2 diabetic patients (dLECs).Quadruplicate biological samples were analyzed from human lymphatic endothelial cells (4 x diabetic; 4 x non-diabetic). subsets: 1 disease state set (dLECs), 1 control set (ndLECs)
2012-06-01 | E-GEOD-38396 | biostudies-arrayexpress
Project description:Genome-wide analysis of gene expression within vitiligo lesional skin with active inflammation
| PRJNA231158 | ENA