PMID- 33820821 OWN - NLM STAT- MEDLINE DCOM- 20211217 LR - 20211217 IS - 2051-1426 (Electronic) IS - 2051-1426 (Linking) VI - 9 IP - 4 DP - 2021 Apr TI - Multiomics analysis reveals a distinct response mechanism in multiple primary lung adenocarcinoma after neoadjuvant immunotherapy. LID - 10.1136/jitc-2020-002312 [doi] LID - e002312 AB - Multiple primary lung cancer (MPLC) remains a tough challenge to diagnose and treat. Although neoadjuvant immunotherapy has shown promising results in early stage non-small cell lung cancer, whether such modality can benefit all primary lesions remains unclear. Herein, we performed integrated multiomics analysis in one patient with early stage MPLC with remarkable tumor shrinkage in a solid nodule and no response in two subsolid nodules after treatment with three cycles of neoadjuvant pembrolizumab. Genomic heterogeneity was observed among responding nodules with high levels of infiltrating CD8(+) and CD68(+) immune cells. Substantially downregulated human leukocyte antigen (HLA)-related genes and impaired T lymphocyte function were observed in non-responding nodules. A larger proportion of infiltrating tissue resident memory T cells (Trm) along with high T cell receptor repertoire clonality in responding nodules were validated as predictive and prognostic biomarkers in multiple cancer types using external public datasets. These results suggested that neoadjuvant programmed death 1 (PD-1)/programmed death ligand 1 inhibitors alone may not be an optimal therapeutic strategy for MPLC due to disparities in genomic alterations and immune microenvironment among different lesions. Additionally, we postulate that increased infiltration of Trm may be a unique marker of early immune responses to PD-1 blockade. CI - (c) Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. FAU - Zhang, Chao AU - Zhang C AD - Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangzhou, Guangdong, China. AD - School of Medicine, South China University of Technology, Guangzhou, Guangdong, China. FAU - Yin, Kai AU - Yin K AD - Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangzhou, Guangdong, China. FAU - Liu, Si-Yang AU - Liu SY AD - Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangzhou, Guangdong, China. FAU - Yan, Li-Xu AU - Yan LX AD - Department of Pathology, Guangdong Provincial People's Hospital, Guangzhou, Guangdong, China. FAU - Su, Jian AU - Su J AD - Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangzhou, Guangdong, China. FAU - Wu, Yi-Long AU - Wu YL AUID- ORCID: 0000-0002-3611-0258 AD - Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangzhou, Guangdong, China. FAU - Zhang, Xu-Chao AU - Zhang XC AD - Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangzhou, Guangdong, China. FAU - Zhong, Wen-Zhao AU - Zhong WZ AD - Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangzhou, Guangdong, China yangxuening@gdph.org.cn syzhongwenzhao@scut.edu.cn. FAU - Yang, Xue-Ning AU - Yang XN AD - Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangzhou, Guangdong, China yangxuening@gdph.org.cn syzhongwenzhao@scut.edu.cn. LA - eng PT - Case Reports PT - Research Support, Non-U.S. Gov't PL - England TA - J Immunother Cancer JT - Journal for immunotherapy of cancer JID - 101620585 RN - 0 (Antibodies, Monoclonal, Humanized) RN - 0 (Immune Checkpoint Inhibitors) RN - DPT0O3T46P (pembrolizumab) SB - IM MH - Adenocarcinoma of Lung/*drug therapy/genetics/immunology MH - Aged MH - Antibodies, Monoclonal, Humanized/*therapeutic use MH - Chemotherapy, Adjuvant MH - Female MH - Gene Expression Profiling MH - Gene Expression Regulation, Neoplastic MH - *Genomics MH - Humans MH - Immune Checkpoint Inhibitors/*therapeutic use MH - *Immunotherapy MH - Lung Neoplasms/*drug therapy/genetics/immunology MH - Multiple Pulmonary Nodules/*drug therapy/genetics/immunology MH - *Neoadjuvant Therapy MH - Neoplasms, Multiple Primary/*drug therapy/genetics/immunology MH - RNA-Seq MH - Time Factors MH - Transcriptome MH - Treatment Outcome MH - Tumor Microenvironment/immunology PMC - PMC8025811 OTO - NOTNLM OT - immunotherapy OT - lung neoplasms OT - translational medical research OT - tumor biomarkers OT - tumor microenvironment COIS- Competing interests: W-ZZ has received honoraria from AstraZeneca and Roche outside the submitted work; Y-LW has received honoraria from AstraZeneca, Eli Lilly, Roche, Pierre Fabre, Pfizer and Sanofi; consulting or advisory tole with AstraZeneca, Roche, Merck and Boehringer Ingelheim and Roche outside the submitted work. EDAT- 2021/04/07 06:00 MHDA- 2021/12/18 06:00 PMCR- 2021/04/05 CRDT- 2021/04/06 05:34 PHST- 2021/02/24 00:00 [accepted] PHST- 2021/04/06 05:34 [entrez] PHST- 2021/04/07 06:00 [pubmed] PHST- 2021/12/18 06:00 [medline] PHST- 2021/04/05 00:00 [pmc-release] AID - jitc-2020-002312 [pii] AID - 10.1136/jitc-2020-002312 [doi] PST - ppublish SO - J Immunother Cancer. 2021 Apr;9(4):e002312. doi: 10.1136/jitc-2020-002312.