Abstract
Natural killer/T-cell lymphoma (NKTCL) is a highly heterogeneous disease with a poor prognosis. However, the genomic characteristics and proper treatment strategies for non-upper aerodigestive tract NKTCL (NUAT-NKTCL), a rare subtype of NKTCL, remain largely unexplored. In this study, 1589 patients newly diagnosed with NKTCL at 14 hospitals were assessed, 196 (12.3%) of whom had NUAT-NKTCL with adverse clinical characteristics and an inferior prognosis. By using whole-genome sequencing (WGS) and whole-exome sequencing (WES) data, we found strikingly different mutation profiles between upper aerodigestive tract (UAT)- and NUAT-NKTCL patients, with the latter group exhibiting significantly higher genomic instability. In the NUAT-NKTCL cohort, 128 patients received frontline P-GEMOX chemotherapy, 37 of whom also received anti-PD-1 immunotherapy. The application of anti-PD-1 significantly improved progression-free survival (3-year PFS rate 53.9% versus 17.0%, P = 0.009) and overall survival (3-year OS rate 63.7% versus 29.2%, P = 0.01) in the matched NUAT-NKTCL cohort. WES revealed frequent mutations involving immune regulation and genomic instability in immunochemotherapy responders. Our study showed distinct clinical characteristics and mutational profiles in NUAT-NKTCL compared with UAT patients and suggested adding anti-PD-1 immunotherapy in front-line treatment of NUAT-NKTCL. Further studies are needed to validate the efficacy and related biomarkers for immunochemotherapy proposed in this study.
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Data availability
The newly generated WES data reported in this paper have been deposited in the Genome Sequence Archive (https://ngdc.cncb.ac.cn/gsa-human) with the accession number of HRA005217. The publicly available WGS/WES data can be retrieved from The National Omics Data Encyclopedia (NODE) (http://www.biosino.org/node) with the accession number of OEP000498.
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Acknowledgements
We are grateful for all patients who enrolled in this study and donate their clinical samples. We are also very grateful to researchers who shared WGS and WES data generated in their previous studies.
Funding
This work is supported by Guangdong Science and Technology Department (2017B020227002 to T.-Y. L and 2019A1515010742 to H. H), Medical Science and Technology Foundation of Guangdong Province (No. A2021426 to Z. W), National Natural Science Foundation of China (82270198 to H.-M. H), Cancer Innovative Research Program of Sun Yat-sen University Cancer Center (CIRP-SYSUCC-0022 to T.-Y. L).
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Tongyu Lin, Yang Liang and Huangming Hong designed and supervised the study. Zegeng Chen and He Huang performed the genomic data collection and analysis. Huageng Huang, Le Yu, Huawei Weng, and Jian Xiao helped with genomic data collection and curation. All authors provided study materials or patients, and contributed to the data interpretation and discussion. Zegeng Chen, Huangming Hong and Tongyu Lin wrote the manuscript. All authors reviewed the manuscript and approved for its submission.
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Chen, Z., Huang, H., Huang, H. et al. Genomic features reveal potential benefit of adding anti-PD-1 immunotherapy to treat non-upper aerodigestive tract natural killer/T-cell lymphoma. Leukemia 38, 829–839 (2024). https://doi.org/10.1038/s41375-024-02171-4
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DOI: https://doi.org/10.1038/s41375-024-02171-4