RT Journal Article
SR Electronic
T1 A Study of Angiogenesis Markers in Patients with Renal Cell Carcinoma Undergoing Therapy with Sunitinib
JF Anticancer Research
JO Anticancer Res
FD International Institute of Anticancer Research
SP 253
OP 259
VO 37
IS 1
A1 STUBBS, CLIVE
A1 BARDOLI, ANTONIO D.
A1 AFSHAR, MEHRAN
A1 PIRRIE, SARAH
A1 MISCORIA, MANUELA
A1 WHEELEY, ISABELLA
A1 PORFIRI, EMILIO
YR 2017
UL http://ar.iiarjournals.org/content/37/1/253.abstract
AB Background: Sunitinib is a tyrosine kinase inhibitor (TKI) targeting tumour angiogenesis in patients with advanced renal cell carcinoma (RCC). Currently no universally agreed model exists correlating the expression of angiogenesis markers with the success of treatment. Patients and Methods: We retrospectively analysed archival tissue for 59 RCC patients treated with sunitinib. The expression of angiogenesis markers VEGF-A, VEGFR, PDGFββ, PDGFR, CCND1 and CA9 was assessed by immunohistochemistry (IHC) and correlated with overall survival (OS) and progression-free survival (PFS). Results: The median OS and median PFS of the whole group of patients was 24.6 months (17.3-34.2) and 19.5 months (11-27) respectively. VEGFA was positive in 29% of tumors, whereas VEGFR was expressed in only 12% of tumours. PDGFββ and its receptor were detected in a minority of cases. CCND1 and CA9 were positive in 44% and 60% of cases. Conclusion: The OS and PFS achieved by our patients reflected previous observations seen with sunitinib, but no correlation was found between expression of angiogenesis markers and clinical outcome.