Abstract
We previously demonstrated that mutational inactivation of transforming growth factor β type II receptors (RIIs) is very common among the 13% of human colon cancers with microsatellite instability. These mutations principally cluster in the BAT-RII polyadenine sequence repeat. Among microsatellite stable (MSS) colon cancers, we now find that non-BAT-RII point mutations inactivate RII in another 15% of cases, thus doubling the known number of colon cancers in which RII mutations are pathogenetic. Functional analysis confirms that these mutations inactivate RII signaling. Moreover, another 55% of MSS colon cancers demonstrate a transforming growth factor β signaling blockade distal to RII. The transforming growth factor β pathway and RII in particular are major targets for inactivation in MSS colon cancers as well as in colon cancers with microsatellite instability.
Original language | English (US) |
---|---|
Pages (from-to) | 320-324 |
Number of pages | 5 |
Journal | Cancer Research |
Volume | 59 |
Issue number | 2 |
State | Published - Jan 16 1999 |
ASJC Scopus subject areas
- Oncology
- Cancer Research