Abstract:11039 Background: Imatinib mestylate(Gleevec,G) is a tyrosine kinase inhibitor of platelet derived growth factor receptor(PDGFR) and KIT(CD117). In breast cancer(BC),PDGFR signaling regulates tumor interstitial fluid pressure(IFP). PDGFR inhibition lowers IFP enhancing tumor drug delivery and chemo effect. KIT’s role in BC growth is unclear.PDGFR and KIT signal pathways regulate proliferation and cell cycle progression.Receptor blockade may enhance anti-tumor activity combined with chemo.This study evaluated … Show more
“…neoadjuvant setting of breast cancer, ImD yielded a response rate of 25%. 22 There are several possible explanations for our negative outcome. We postulated that the mechanism of action of Im was predominantly angiogenesis inhibition through PDGF pathway blockade.…”
Im in combination with D did not achieve its primary objective of improving response rate in patients with recurrent NSCLC. An increased understanding of the complex PDGFR pathway in lung cancer and alternative strategies to inhibit it are needed.
“…neoadjuvant setting of breast cancer, ImD yielded a response rate of 25%. 22 There are several possible explanations for our negative outcome. We postulated that the mechanism of action of Im was predominantly angiogenesis inhibition through PDGF pathway blockade.…”
Im in combination with D did not achieve its primary objective of improving response rate in patients with recurrent NSCLC. An increased understanding of the complex PDGFR pathway in lung cancer and alternative strategies to inhibit it are needed.
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