Faculty Collaboration Database

Programmed death-1 (PD-1) receptor/PD-1 ligand (PD-L1) expression in fumarate hydratase-deficient renal cell carcinoma. Ann Diagn Pathol 2017 Aug;29:17-22

Date

08/16/2017

Pubmed ID

28807336

DOI

10.1016/j.anndiagpath.2017.04.007

Scopus ID

2-s2.0-85018267300 (requires institutional sign-in at Scopus site)   34 Citations

Abstract

Fumarate hydratase-deficient renal cell carcinoma (FH-RCC) is a rare and aggressive tumor affecting mostly younger patients. This is the first study to assess the expression of programmed death-1 (PD-1) receptor/PD-1 ligand (PD-L1) in FH-RCC. Formalin-fixed paraffin-embedded samples from 13 FH-RCCs collected in an international multi-institutional study, were evaluated by immunohistochemistry (IHC) for PD-1/PD-L1 reactivity in tumor cells and tumor infiltrating lymphocytes (TILs). PD-1/PD-L1 expression was further evaluated by qPCR. By IHC, PD-1 was negative in tumor cells in all 13 cases. PD-L1 was positive in tumor cells in 2/13 cases, weak positive in 7/13, and negative in 4/13 cases, respectively. In TILs, PD-1 was positive in 1/13, weak positive in 3/13, and negative in 9/13 cases. In TILs, PD-L1 was weak positive by IHC in 5/13, and negative in 8/13 cases, respectively. qPCR confirmed the result for 2 of 3 IHC weak positive PD-1 samples. Of 7 IHC weak positive samples (in tumor cells), PD-L1 mRNA was detected in all 7 tumors. The majority of FH-RCCs did not express PD-1/PD-L1 by IHC, which was confirmed by molecular analysis. PD-1/PD-L1 expression in FH-RCC is restricted to a proportion of cases which may benefit from targeted therapies.

Author List

Alaghehbandan R, Stehlik J, Trpkov K, Magi-Galluzzi C, Condom Mundo E, Pane Foix M, Berney D, Sibony M, Suster S, Agaimy A, Montiel DP, Pivovarcikova K, Michalova K, Daum O, Ondic O, Rotterova P, Dusek M, Hora M, Michal M, Hes O

MESH terms used to index this publication - Major topics in bold

Adult
B7-H1 Antigen
Carcinoma, Renal Cell
Disease-Free Survival
Female
Fumarate Hydratase
Humans
Immunohistochemistry
Kidney Neoplasms
Lymphocytes, Tumor-Infiltrating
Male
Middle Aged
Programmed Cell Death 1 Receptor