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Published in: Cancer Immunology, Immunotherapy 10/2020

01-10-2020 | Kidney Cancer | Original Article

Galectin-9 expression as a poor prognostic factor in patients with renal cell carcinoma

Authors: Ryosuke Jikuya, Takeshi Kishida, Masahiko Sakaguchi, Tomoyuki Yokose, Masato Yasui, Akihito Hashizume, Tomoyuki Tatenuma, Nobuhiko Mizuno, Kentaro Muraoka, Susumu Umemoto, Masaki Kawai, Mitsuyo Yoshihara, Yoshiyasu Nakamura, Yohei Miyagi, Tetsuro Sasada

Published in: Cancer Immunology, Immunotherapy | Issue 10/2020

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Abstract

Recently, the effectiveness of anti-programmed death 1 (PD-1) antibody therapy in the treatment of renal cell carcinoma (RCC) has been established. Nevertheless, efficacy has been reported to be limited to only 10–30% of patients. To develop more effective immunotherapy for RCC, we analyzed the immunological characteristics in RCC tissues by immunohistochemistry (IHC). We prepared a tissue microarray that consisted of tumor tissue sections (1 mm in diameter) from 83 RCC patients in Kanagawa Cancer Center between 2006 and 2015. IHC analysis was performed with antibodies specific to immune-related (CD8 and Foxp3) and immune checkpoint (programmed death ligand 1 (PD-L1) and 2 (PD-L2), B7-H4 and galectin-9) molecules. The numbers and proportions of positively stained tumor cells or immune cells were determined in each section. From multivariate analysis of all 83 patients, higher galectin-9 expression was detected as a factor associated with worse overall survival (OS) (P = 0.029) and that higher stage and higher B7-H4 expression were associated with worse progression-free survival (PFS) (P < 0.001 and P = 0.021, respectively). Similarly, in multivariate analysis of 69 patients with clear cell RCC, though not statistically significant, there was a trend for association between higher galectin-9 expression and worse OS (P = 0.067), while higher stage was associated with worse PFS (P < 0.001). This study suggests that higher galectin-9 expression is an independent adverse prognostic factor of OS in RCC patients. Therefore, to develop more effective personalized immunotherapy to treat RCC, it may be important to target not only PD-1/PD-L1, but also other immune checkpoint molecules such as galectin-9.
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Metadata
Title
Galectin-9 expression as a poor prognostic factor in patients with renal cell carcinoma
Authors
Ryosuke Jikuya
Takeshi Kishida
Masahiko Sakaguchi
Tomoyuki Yokose
Masato Yasui
Akihito Hashizume
Tomoyuki Tatenuma
Nobuhiko Mizuno
Kentaro Muraoka
Susumu Umemoto
Masaki Kawai
Mitsuyo Yoshihara
Yoshiyasu Nakamura
Yohei Miyagi
Tetsuro Sasada
Publication date
01-10-2020
Publisher
Springer Berlin Heidelberg
Published in
Cancer Immunology, Immunotherapy / Issue 10/2020
Print ISSN: 0340-7004
Electronic ISSN: 1432-0851
DOI
https://doi.org/10.1007/s00262-020-02608-6

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