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Published in: Cancer Immunology, Immunotherapy 1/2021

01-01-2021 | NSCLC | Original Article

ZFHX3 mutation as a protective biomarker for immune checkpoint blockade in non-small cell lung cancer

Authors: Jiexia Zhang, Ningning Zhou, Anqi Lin, Peng Luo, Xin Chen, Huojin Deng, Shijun Kang, Linlang Guo, Weiliang Zhu, Jian Zhang

Published in: Cancer Immunology, Immunotherapy | Issue 1/2021

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Abstract

To date, immunotherapy has opened a new chapter in the treatment of lung cancer. Precise biomarkers can help to screen subpopulations of lung cancer to provide the best treatment. Multiple studies suggest that specific gene mutations may be predictive markers in guiding non-small cell lung cancer (NSCLC) immune checkpoint inhibitor (ICI) treatment. A published immunotherapy cohort with mutational and survival data for 350 NSCLC patients was used. First, the mutational data of the immunotherapy cohort were used to identify gene mutations related to the prognosis of ICI therapy. The immunotherapy cohort and TCGA-NSCLC cohort were further studied to elucidate the relationships between specific gene mutations and tumor immunogenicity, antitumor immune response capabilities, and immune cell and mutation counts in the DNA damage response (DDR) pathway. In the immunotherapy cohort (N = 350), ZFHX3 mutations were an independent predictive biomarker for NSCLC patients receiving ICI treatment. Significant differences were observed between ZFHX3-mutant (ZFHX3-MT) and ZFHX3-wild type (ZFHX3-WT) patients regarding the overall survival (OS) time (P < 0.001, HR = 0.26, 95% Cl 0.17–0.41). ZFHX3-MT is significantly associated with higher tumor mutation burden (TMB) and neoantigen load (NAL), and ZFHX3-MT positively correlates with known immunotherapy response biomarkers, including T-cell infiltration, immune-related gene expression, and mutation counts in the DDR pathway in NSCLC. ZFHX3-MT is closely related to longer OS in NSCLC patients treated with ICIs, suggesting that ZFHX3 mutations be used as a novel predictive marker in guiding NSCLC ICI treatment.
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Metadata
Title
ZFHX3 mutation as a protective biomarker for immune checkpoint blockade in non-small cell lung cancer
Authors
Jiexia Zhang
Ningning Zhou
Anqi Lin
Peng Luo
Xin Chen
Huojin Deng
Shijun Kang
Linlang Guo
Weiliang Zhu
Jian Zhang
Publication date
01-01-2021
Publisher
Springer Berlin Heidelberg
Published in
Cancer Immunology, Immunotherapy / Issue 1/2021
Print ISSN: 0340-7004
Electronic ISSN: 1432-0851
DOI
https://doi.org/10.1007/s00262-020-02668-8

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