CTNNBIP1 modulates keratinocyte proliferation through promoting the transcription of β-catenin/TCF complex downstream genes.

Journal of the European Academy of Dermatology and Venereology : JEADV
Chang WangZhibo Yang

Abstract

During psoriasis initiation and development, deregulations in signalling pathways and gene expression are observed. Herein, we downloaded seven sets of microarray mRNA expression profiles showing differentially expressed genes in psoriasis lesion skin and non-lesion skin tissues and three sets of RNA-seq data and analysed these online data attempting to screen for crucial genes related to keratinocyte proliferation and psoriasis development. The expression of CTNNBIP1 in psoriasis patients and IMQ mouse model skin tissues were examined by RT-PCR, immunoblotting and IHC. The functions of CTNNBIP1 on HaCaT cell proliferation, apoptosis and β-catenin/TCF complex were measured by MTT, EdU, flow cytometry, IF, luciferase assays and immunoblotting. The expression of catenin beta interacting protein 1 (CTNNBIP1) was remarkably downregulated within psoriasis lesion skin tissue samples compared to that within non-lesion skin tissues based on both online data and experimental results. In response to a period of different therapies, respectively, CTNNBIP1 expression could be rescued in lesion skin tissues. Within IMQ-induced psoriasis-like dermatitis in mice, CTNNBIP1 silence further aggravated psoriatic phenotypes. In human immortalized ...Continue Reading

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Citations

Jun 13, 2021·Biochemical and Biophysical Research Communications·Zheng ZhangXuhui Zhou
Sep 28, 2021·Technology in Cancer Research & Treatment·Jiancong HuHuanliang Liu

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