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Characterization of normal fibroblast transcriptomes upon transient silencing of LTBP2 by RNAseq

ABSTRACT: Purpose: Our single-cell RNAseq data show that LTBP2 is a marker of a cancer associated fibroblast subpopulation in colorectal cancer liver metastases. Moreover, MTT assays of cultured fibroblasts treated with anti-LTBP2 antibodies suggest that LTBP2 is essential for their survival. The goal of this study is to understand the role of LTBP2 in fibroblasts. Methods: Normal olon fibroblasts (CCD18Co) were transfected 48h with siRNA containing an anti-LTBP2 or a non target sequence. Cell monolayer total RNA of 3 biological replicates was then extracted and submitted to Illumina RNAseq using NovaSeq6000. Results: Transcriptomics revealed massive changes in gene expression when LTBP2 is knocked down: 496 genes were differentially expressed between the colon fibroblasts treated with siRNA anti-LTBP2 and NT. Those genes are implicated in diverse biological processes such as extracellular matrix organization, angiogenesis or cell adhesion. Conclusions: Our study explored LTBP2 functions in normal fibroblasts. RNAseq data support its important role. After 48h, LTBP2 silencing induces changes in gene expression of numerous genes involved in fibroblast functions.

ORGANISM(S): Homo sapiens

PROVIDER: GSE191323 | GEO | 2022/11/22

REPOSITORIES: GEO

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