Gene Set: MISHRA_CARCINOMA_ASSOCIATED_FIBROBLAST_UP

Standard name MISHRA_CARCINOMA_ASSOCIATED_FIBROBLAST_UP
Systematic name M18292
Brief description Top genes up-regulated in mesenchyme stem cells (MSC) grown in a tumor conditioned medium, which leads to carcinoma-associated fibroblast phenotype.
Full description or abstract Carcinoma-associated fibroblasts (CAF) have recently been implicated in important aspects of epithelial solid tumor biology, such as neoplastic progression, tumor growth, angiogenesis, and metastasis. However, neither the source of CAFs nor the differences between CAFs and fibroblasts from nonneoplastic tissue have been well defined. In this study, we show that human bone marrow-derived mesenchymal stem cells (hMSCs) exposed to tumor-conditioned medium (TCM) over a prolonged period of time assume a CAF-like myofibroblastic phenotype. More importantly, these cells exhibit functional properties of CAFs, including sustained expression of stromal-derived factor-1 (SDF-1) and the ability to promote tumor cell growth both in vitro and in an in vivo coimplantation model, and expression of myofibroblast markers, including alpha-smooth muscle actin and fibroblast surface protein. hMSCs induced to differentiate to a myofibroblast-like phenotype using 5-azacytidine do not promote tumor cell growth as efficiently as hMSCs cultured in TCM nor do they show increased SDF-1 expression. Furthermore, gene expression profiling revealed similarities between TCM-exposed hMSCs and CAFs. Taken together, these data suggest that hMSCs are a source of CAFs and can be used in the modeling of tumor-stroma interactions. To our knowledge, this is the first report showing that hMSCs become activated and resemble carcinoma-associated myofibroblasts on prolonged exposure to conditioned medium from MDAMB231 human breast cancer cells.
Collection C2: curated gene sets
      CGP: chemical and genetic perturbations
Source publication Pubmed 18519693   Authors: Mishra PJ,Humeniuk R,Medina DJ,Alexe G,Mesirov JP,Ganesan S,Glod JW,Banerjee D
Exact source p. 4335: Top 25 (of 53) up-regulated genes
Related gene sets (show 1 additional gene sets from the source publication)

(show 55 gene sets from the same authors)
External links  
Filtered by similarity
Organism Homo sapiens
Contributed by Leona Saunders (MSigDB Team)
Source platform HUMAN_GENE_SYMBOL
Dataset references (show 1 datasets)
Download gene set format: grp | text | gmt | gmx | xml
Compute overlaps (show collections to investigate for overlap with this gene set)
Compendia expression profiles GTEx compendium
Human tissue compendium (Novartis)
Global Cancer Map (Broad Institute)
NCI-60 cell lines (National Cancer Institute)
Advanced query Further investigate these 24 genes
Gene families Categorize these 24 genes by gene family
Show members (show 24 members mapped to 24 genes)
Version history 3.0: First introduced

See MSigDB license terms here. Please note that certain gene sets have special access terms.