{"title":"5 -羟色胺代谢塑造肿瘤免疫微环境并作为肺癌的治疗靶点","authors":"Miersalijiang Yasen, Naikun Sun, Jiude Jia, Weixiang Hong, Leiting Zhuang, Jinwang Huang, Xiaohui Chen, Wenhui Shen","doi":"10.2174/0118715206408134250801050919","DOIUrl":null,"url":null,"abstract":"<p><strong>Introduction: </strong>Lung cancer progression involves complex interactions between metabolic pathways and the immune microenvironment. The role of serotonin, a tryptophan-derived metabolite, in immune responses to lung tumors remains unclear.</p><p><strong>Methods: </strong>An orthotopic lung cancer model was established by intravenously injecting KP (KrasG12D/p53-/-) cells into C57BL/6 mice. Metabolomic and flux analyses were conducted on tumor versus normal lung tissues. Serotonin was administered to tumor-bearing mice, followed by immunofluorescence and flow cytometry to assess immune responses. Human lung cancer datasets were analyzed to validate clinical relevance.</p><p><strong>Results: </strong>Tumor tissues exhibited a significant decrease in serotonin levels. Although tryptophan, serotonin, and kynurenine levels were decreased overall, flux analysis revealed a metabolic shift favoring kynurenine synthesis, with a ~10-fold increase in the kynurenine-to-serotonin ratio. Serotonin supplementation significantly prolonged survival and enhanced dendritic cell and CD8⁺ T cell infiltration and activation in tumors. Analysis of public datasets showed that serotonin expression positively correlated with CD8⁺ T cell activation signatures and patient prognosis.</p><p><strong>Discussion: </strong>By revealing serotonin as a potential biomarker and therapeutic target, this study paves new avenues for improving lung cancer treatment strategies through modulation of the immune microenvironment. Moreover, the precise receptor-mediated mechanisms underlying serotonin's immunomodulatory effects remain to be clarified, and translational validation in human tissues is warranted to strengthen clinical relevance.</p><p><strong>Conclusion: </strong>Serotonin deficiency in the tumor microenvironment of the lung suppresses antitumor immunity. Its restoration reverses immune dysfunction and limits tumor progression. These findings identify serotonin as a potential metabolic regulator and immunotherapeutic target in lung cancer.</p>","PeriodicalId":7934,"journal":{"name":"Anti-cancer agents in medicinal chemistry","volume":" ","pages":""},"PeriodicalIF":3.0000,"publicationDate":"2025-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Serotonin Metabolism Shapes the Tumor Immune Microenvironment and Serves as a Therapeutic Target in Lung Cancer.\",\"authors\":\"Miersalijiang Yasen, Naikun Sun, Jiude Jia, Weixiang Hong, Leiting Zhuang, Jinwang Huang, Xiaohui Chen, Wenhui Shen\",\"doi\":\"10.2174/0118715206408134250801050919\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Introduction: </strong>Lung cancer progression involves complex interactions between metabolic pathways and the immune microenvironment. The role of serotonin, a tryptophan-derived metabolite, in immune responses to lung tumors remains unclear.</p><p><strong>Methods: </strong>An orthotopic lung cancer model was established by intravenously injecting KP (KrasG12D/p53-/-) cells into C57BL/6 mice. Metabolomic and flux analyses were conducted on tumor versus normal lung tissues. Serotonin was administered to tumor-bearing mice, followed by immunofluorescence and flow cytometry to assess immune responses. Human lung cancer datasets were analyzed to validate clinical relevance.</p><p><strong>Results: </strong>Tumor tissues exhibited a significant decrease in serotonin levels. Although tryptophan, serotonin, and kynurenine levels were decreased overall, flux analysis revealed a metabolic shift favoring kynurenine synthesis, with a ~10-fold increase in the kynurenine-to-serotonin ratio. Serotonin supplementation significantly prolonged survival and enhanced dendritic cell and CD8⁺ T cell infiltration and activation in tumors. Analysis of public datasets showed that serotonin expression positively correlated with CD8⁺ T cell activation signatures and patient prognosis.</p><p><strong>Discussion: </strong>By revealing serotonin as a potential biomarker and therapeutic target, this study paves new avenues for improving lung cancer treatment strategies through modulation of the immune microenvironment. Moreover, the precise receptor-mediated mechanisms underlying serotonin's immunomodulatory effects remain to be clarified, and translational validation in human tissues is warranted to strengthen clinical relevance.</p><p><strong>Conclusion: </strong>Serotonin deficiency in the tumor microenvironment of the lung suppresses antitumor immunity. Its restoration reverses immune dysfunction and limits tumor progression. These findings identify serotonin as a potential metabolic regulator and immunotherapeutic target in lung cancer.</p>\",\"PeriodicalId\":7934,\"journal\":{\"name\":\"Anti-cancer agents in medicinal chemistry\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":3.0000,\"publicationDate\":\"2025-08-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Anti-cancer agents in medicinal chemistry\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.2174/0118715206408134250801050919\",\"RegionNum\":4,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, MEDICINAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Anti-cancer agents in medicinal chemistry","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.2174/0118715206408134250801050919","RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MEDICINAL","Score":null,"Total":0}
Serotonin Metabolism Shapes the Tumor Immune Microenvironment and Serves as a Therapeutic Target in Lung Cancer.
Introduction: Lung cancer progression involves complex interactions between metabolic pathways and the immune microenvironment. The role of serotonin, a tryptophan-derived metabolite, in immune responses to lung tumors remains unclear.
Methods: An orthotopic lung cancer model was established by intravenously injecting KP (KrasG12D/p53-/-) cells into C57BL/6 mice. Metabolomic and flux analyses were conducted on tumor versus normal lung tissues. Serotonin was administered to tumor-bearing mice, followed by immunofluorescence and flow cytometry to assess immune responses. Human lung cancer datasets were analyzed to validate clinical relevance.
Results: Tumor tissues exhibited a significant decrease in serotonin levels. Although tryptophan, serotonin, and kynurenine levels were decreased overall, flux analysis revealed a metabolic shift favoring kynurenine synthesis, with a ~10-fold increase in the kynurenine-to-serotonin ratio. Serotonin supplementation significantly prolonged survival and enhanced dendritic cell and CD8⁺ T cell infiltration and activation in tumors. Analysis of public datasets showed that serotonin expression positively correlated with CD8⁺ T cell activation signatures and patient prognosis.
Discussion: By revealing serotonin as a potential biomarker and therapeutic target, this study paves new avenues for improving lung cancer treatment strategies through modulation of the immune microenvironment. Moreover, the precise receptor-mediated mechanisms underlying serotonin's immunomodulatory effects remain to be clarified, and translational validation in human tissues is warranted to strengthen clinical relevance.
Conclusion: Serotonin deficiency in the tumor microenvironment of the lung suppresses antitumor immunity. Its restoration reverses immune dysfunction and limits tumor progression. These findings identify serotonin as a potential metabolic regulator and immunotherapeutic target in lung cancer.
期刊介绍：
Formerly: Current Medicinal Chemistry - Anti-Cancer Agents.
Anti-Cancer Agents in Medicinal Chemistry aims to cover all the latest and outstanding developments in medicinal chemistry and rational drug design for the discovery of anti-cancer agents.
Each issue contains a series of timely in-depth reviews and guest edited issues written by leaders in the field covering a range of current topics in cancer medicinal chemistry. The journal only considers high quality research papers for publication.
Anti-Cancer Agents in Medicinal Chemistry is an essential journal for every medicinal chemist who wishes to be kept informed and up-to-date with the latest and most important developments in cancer drug discovery.
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