Gastrointestinal stromal tumors: their origin and cause.

Abstract:

:Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors in the gastrointestinal tract. Recently, we found that GISTs expressed KIT, a receptor tyrosine kinase encoded by the protooncogene c-kit. We propose that GISTs may originate from interstitial cells of Cajal (ICCs), which are considered to be pacemaker cells for the autonomous movement of the gastrointestinal tract. There are major two reasons for this proposal: one is that both GISTs and ICCs are double-positive for KIT and CD34, and the other is that multiple GISTs appear to develop from diffuse ICC hyperplasia in germline mutations of the c-kit gene. Because somatic gain-of-function mutations of the c-kit gene are observed in solitary GISTs, and because the germline gain-of-function mutations of the c-kit gene are observed in familial and multiple GISTs, the gain-of function mutations of the c-kit gene are considered to be a cause of the development of GISTs.

journal_name

Int J Clin Oncol

authors

Hirota S

doi

10.1007/pl00012072

subject

Has Abstract

pub_date

2001-02-01 00:00:00

pages

1-5

issue

1

eissn

1341-9625

issn

1437-7772

journal_volume

6

pub_type

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