No evidence of clonal somatic genetic alterations in cancer-associated fibroblasts from human breast and ovarian carcinomas.

Abstract:

:There is increasing evidence showing that the stromal cells surrounding cancer epithelial cells, rather than being passive bystanders, might have a role in modifying tumor outgrowth. The molecular basis of this aspect of carcinoma etiology is controversial. Some studies have reported a high frequency of genetic aberrations in carcinoma-associated fibroblasts (CAFs), whereas other studies have reported very low or zero mutation rates. Resolution of this contentious area is of critical importance in terms of understanding both the basic biology of cancer as well as the potential clinical implications of CAF somatic alterations. We undertook genome-wide copy number and loss of heterozygosity (LOH) analysis of CAFs derived from breast and ovarian carcinomas using a 500K SNP array platform. Our data show conclusively that LOH and copy number alterations are extremely rare in CAFs and cannot be the basis of the carcinoma-promoting phenotypes of breast and ovarian CAFs.

journal_name

Nat Genet

journal_title

Nature genetics

authors

Qiu W,Hu M,Sridhar A,Opeskin K,Fox S,Shipitsin M,Trivett M,Thompson ER,Ramakrishna M,Gorringe KL,Polyak K,Haviv I,Campbell IG

doi

10.1038/ng.117

subject

Has Abstract

pub_date

2008-05-01 00:00:00

pages

650-5

issue

5

eissn

1061-4036

issn

1546-1718

pii

ng.117

journal_volume

40

pub_type

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