Abstract
Introduction
This study aimed to clarify the correlation between the number of AMs and prognosis and to examine the gene expression of AMs in lung squamous cell carcinoma (SqCC).
Methods
We reviewed 124 stage I lung SqCC cases in our hospital and 139 stage I lung SqCC cases in The Cancer Genome Atlas (TCGA) cohort in this study. We counted the number of AMs in the peritumoral lung field (P-AMs) and in the lung field distant from the tumor (D-AMs). Moreover, we performed a novel ex vivo bronchoalveolar lavage fluid (BALF) analysis to select AMs from surgically resected lung SqCC cases and examined the expression of IL10, CCL2, IL6, TGFβ, and TNFα (n = 3).
Results
Patients with high P-AMs had significantly shorter overall survival (OS) (p < 0.01); however, patients with high D-AMs did not have significantly shorter OS. Moreover, in TCGA cohort, patients with high P-AMs had a significantly shorter OS (p < 0.01). In multivariate analysis, a higher number of P-AMs were an independent poor prognostic factor (p = 0.02). Ex vivo BALF analysis revealed that AMs collected from the tumor vicinity showed higher expression of IL10 and CCL2 than AMs from distant lung fields in all 3 cases (IL-10: 2.2-, 3.0-, and 10.0-fold; CCL-2: 3.0-, 3.1-, and 3.2-fold). Moreover, the addition of recombinant CCL2 significantly increased the proliferation of RERF-LC-AI, a lung SqCC cell line.
Conclusion
The current results indicated the prognostic impact of the number of peritumoral AMs and suggested the importance of the peritumoral tumor microenvironment in lung SqCC progression.
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Date availability
The datasets generated during and/or analyzed during the current study are available in the Cancer Genome Atlas repository, “https://portal.gdc.cancer.gov/
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Funding
This work was supported in part by National cancer center research fund (2020-A-9) and JSPS KAKENHI (21H02931).
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Material preparation, data collection, and analysis were performed by YT, AS, and HH. The experimental designs was developed by HH and GI. The first draft of the manuscript was written by YT. The conduct of this study was supervised by GI. All authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.
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T. Sakai reports grants from AMGEN outside the submitted work; personal fees from AstraZeneca, Chugai Pharmaceutical, Novartis, MSD, Merck and Themo Fisher Scientific outside the submitted work. Y. Shibata reports grants from Ono Pharmaceutical Co., Ltd. and MSD outside the submitted work; personal fees from Pfizer Inc., Bristol-Myers Squibb K.K., AstraZeneca K.K., Ono Pharmaceutical Co., Ltd., Eli Lilly Japan K.K., Merck, Takeda Pharmaceutical, Chugai Pharmaceutical. H. Izumi reports grants from Amgen Inc, Takeda Pharmaceutical Co., AstraZeneca, Eisai and Ono Pharmaceutical Company outside the submitted work; personal fees from Amgen Inc, Ono Pharmaceutical Company, Chugai Pharmaceutical Co., AstraZeneca, Merck Biopharma Co., Takeda Pharmaceutical Co. and Eisai. H. Udagawa reports grants from Takeda Pharmaceutical, and Boehringer Ingelheim GmbH outside the submitted work. Y. Zenke reports grants and personal fees from AstraZeneca, MSD, and Amgen; personal fees from Bristol-Myers Squibb, Lilly, Chugai, Ono Pharmaceutical, Boehringer Ingelheim, Pfizer, Taiho Pharmaceutical, Takeda Pharmaceutical, Novartis, Nippon Kayaku, and Kyowa Kirin; and grants from Merck and Daiichi Sankyo outside the submitted work. S. Matsumoto reports grants and personal fees from Merck; personal fees from Eli Lilly, AstraZeneca, Chugai Pharmaceutical, ThermoFisher Scientific, Riken Genesis, Guardant Health, Novartis Pharma, and Amgen; and grants from Janssen Pharmaceutical outside the submitted work. K. Yoh reports grants and personal fees from AstraZeneca, Boehringer Ingelheim, Chugai, Daiichi Sankyo, Lilly, Taiho, and Takeda; personal fees from Bristol-Myers Squibb, Janssen, Kyowa Kirin, and Novartis; and grants from AbbVie, MSD, and Pfizer outside the submitted work. M Tsuboi reports from Boehringer-Ingelheim Japan, MSD, AstraZeneca KK, Ono Pharmaceutical CO.,LTD, Bristol-Myers Squibb KK, Eli Lilly Japan, Novartis, BMG Inc. and MiRXES Japan outside the submitted work; and personal fees from AstraZeneca, Chugai Pharmaceutical CO.,LTD, MSD, Novartis, Johnson & Johnson Japan, AstraZeneca KK, Eli Lilly Japan, Chugai Pharmaceutical CO.,LTD, Taiho Pharma, Medtronic Japan, Ono Pharmaceutical CO.,LTD, MSD, Bristol-Myers Squibb KK and Teijin Pharma outside the submitted work. K. Goto reports grants from Merck, Takeda Pharmaceutical, Amgen, Astellas, AstraZeneca, Boehringer Ingelheim, Bristol-Myers Squibb, Chugai, Daiichi Sankyo, Eisai, Janssen, Kyowa Kirin, Lilly, Medical & Biological Laboratories, MSD, Novartis, Ono, Pfizer, Sumitomo Dainippon, Bayer Yakuhin Ltd., Haihe Biopharma Co. Ltd., Ignyta Inc., Kissei Pharmaceutical Co. Ltd., Life Technologies Japan Ltd., Loxo Oncology Inc., Merus N.V., NEC Corporation., Pfizer Japan Inc., Spectrum Pharmaceuticals Inc., Sysmex Corporation, Turning Point Therapeutics Inc., and Taiho and nonfinancial support from Guardant Health Inc. during the conduct of the study as well as grants and personal fees from Amgen, Amgen K.K., Amgen Astellas BioPharma K.K., AstraZeneca K.K., Boehringer Ingelheim Japan Inc., BristolMyers Squibb K.K., Blueprint Medicines Corporation, Chugai Pharmaceutical Co. Ltd., Daiichi Sankyo Co. Ltd., Eisai Co. Ltd., Eli Lilly Japan K.K., Janssen Pharmaceutical K.K., Merck Biopharma Co. Ltd., MSD K.K., Novartis Pharma K.K., Ono Pharmaceutical Co. Ltd., Taiho Pharmaceutical Co. Ltd., and Takeda Pharmaceutical Co. Ltd. and personal fees from Amoy Diagnostics Co. Ltd., Bayer U.S., Guardant Health Inc., Thermo Fisher Scientific K.K., Medpace Japan K.K., and Otsuka Pharmaceutical Co. Ltd. outside the submitted work. G. Ishii report grands from DAIICHI SANKYO, INC., ONO PHARMACEUTICAL CO.,LTD., Noile-Immune Biotech Takeda Pharmaceutical Company Limited, Sumitomo Dainippon Pharma Co.,Ltd., Nihon Medi-Physics Co.,Ltd. Indivumed GmbH H.U. Group Research Institute; personal fees from Roche Diagnostics K.K., CHUGAI PHARMACEUTICAL CO., LTD., Novartis International AG, Oncolys BioPharma Inc., DAIICHI SANKYO, INC., Eli Lilly Japan K.K., Takeda Pharmaceutical Company Limited, AstraZeneca, RIKEN GENESIS CO., LTD. No disclosures were reported by the other authors.
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This study was performed in line with the principles of the Declaration of Helsinki. Approval was granted by the Ethics Committee of National cancer center hospital east (2020-343).
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Tanaka, Y., Nakai, T., Suzuki, A. et al. Clinicopathological significance of peritumoral alveolar macrophages in patients with resected early-stage lung squamous cell carcinoma. Cancer Immunol Immunother 72, 2205–2215 (2023). https://doi.org/10.1007/s00262-023-03393-8
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DOI: https://doi.org/10.1007/s00262-023-03393-8