Multiomics insights into BMI-related intratumoral microbiota in gastric cancer
IntroductionBody mass index (BMI) is considered an important factor in tumor prognosis, but its role in gastric cancer (GC) remains controversial. There is a lack of studies exploring the effect of BMI on gastric cancer from the perspective of intratumoral microbiota. This study aimed to compare and...
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Frontiers Media S.A.
2025-02-01
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| Series: | Frontiers in Cellular and Infection Microbiology |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fcimb.2025.1511900/full |
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| author | Kang Liu Zhengchen Jiang Zhengchen Jiang Yubo Ma Ruihong Xia Yingsong Zheng Kailai Yin Chuhong Pang Li Yuan Li Yuan Xiangdong Cheng Xiangdong Cheng Zhuo Liu Bo Zhang Shi Wang |
| author_facet | Kang Liu Zhengchen Jiang Zhengchen Jiang Yubo Ma Ruihong Xia Yingsong Zheng Kailai Yin Chuhong Pang Li Yuan Li Yuan Xiangdong Cheng Xiangdong Cheng Zhuo Liu Bo Zhang Shi Wang |
| author_sort | Kang Liu |
| collection | DOAJ |
| description | IntroductionBody mass index (BMI) is considered an important factor in tumor prognosis, but its role in gastric cancer (GC) remains controversial. There is a lack of studies exploring the effect of BMI on gastric cancer from the perspective of intratumoral microbiota. This study aimed to compare and analyze the differences in and functions of intratumoral microbiota among GC patients with varying BMIs, aiming to ascertain whether specific microbial features are associated with prognosis in low-BMI (LBMI) gastric cancer patients.MethodsA retrospective analysis of the clinicopathological features and prognosis of 5567 patients with different BMIs was performed between January 2010 and December 2019. Tumor tissues from 189 GC patients were collected for 16S rRNA sequencing, 64 samples were selected for transcriptome sequencing, and 57 samples were selected for untargeted metabolomic analysis.ResultsClinical cohort analysis revealed that GC patients with a low BMI presented poorer clinical and pathological characteristics than those with a non-low-BMI (NLBMI). LBMI was identified as a significant independent risk factor for adverse prognosis, potentially exerting immunosuppressive effects on postoperative adjuvant chemotherapy. 16S rRNA sequencing revealed no significant differences in the alpha and beta diversity of the intratumoral microbiota between the two groups of GC patients. However, LEfSe analysis revealed 32 differential intratumoral microbiota between the LBMI and NLBMI groups. Notably, the genus Abiotrophia was significantly enriched in the LBMI group. Further in-depth analysis indicated that the genus Abiotrophia was inversely associated with eosinophils, P2RY12, and SCN4B genes, and positively linked with LGR6 in LBMI gastric cancer patients. Metabolomic assessments revealed that LBMI was positively associated with purine metabolites, specifically guanine and inosine diphosphate (IDP).DiscussionIn conclusion, LBMI is an independent risk factor for poor prognosis in gastric cancer patients and may have an inhibitory effect on postoperative adjuvant chemotherapy. Intratumor flora of gastric cancer patients with different BMI levels differed, with different immune cell infiltration and metabolic characteristics. The genus Abiotrophia may promote gastric cancer development and progression by regulating eosinophils and the purine metabolism pathway, which provides a new idea for the precise treatment of gastric cancer. |
| format | Article |
| id | doaj-art-9b5fc3d0c7aa4f08971785b1220aa0c3 |
| institution | DOAJ |
| issn | 2235-2988 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Frontiers Media S.A. |
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| series | Frontiers in Cellular and Infection Microbiology |
| spelling | doaj-art-9b5fc3d0c7aa4f08971785b1220aa0c32025-08-20T02:43:16ZengFrontiers Media S.A.Frontiers in Cellular and Infection Microbiology2235-29882025-02-011510.3389/fcimb.2025.15119001511900Multiomics insights into BMI-related intratumoral microbiota in gastric cancerKang Liu0Zhengchen Jiang1Zhengchen Jiang2Yubo Ma3Ruihong Xia4Yingsong Zheng5Kailai Yin6Chuhong Pang7Li Yuan8Li Yuan9Xiangdong Cheng10Xiangdong Cheng11Zhuo Liu12Bo Zhang13Shi Wang14The Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, ChinaDepartment of Gastric Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, ChinaZhejiang Key Lab of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, ChinaThe Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, ChinaThe Second Clinical Medical College of Zhejiang Chinese Medical University, Hangzhou, Zhejiang, ChinaPostgraduate training base Alliance of Wenzhou Medical University (Zhejiang Cancer Hospital), Hangzhou, Zhejiang, ChinaPostgraduate training base Alliance of Wenzhou Medical University (Zhejiang Cancer Hospital), Hangzhou, Zhejiang, ChinaPostgraduate training base Alliance of Wenzhou Medical University (Zhejiang Cancer Hospital), Hangzhou, Zhejiang, ChinaZhejiang Key Lab of Prevention, Diagnosis and Therapy of Upper Gastrointestinal Cancer, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, ChinaDepartment of Integrated Chinese and Western Medicine, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, ChinaDepartment of Gastric Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, ChinaZhejiang Provincial Research Center for Upper Gastrointestinal Tract Cancer, Zhejiang Cancer Hospital, Hangzhou, Zhejiang, ChinaDepartment of Gastric Surgery, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, ChinaDepartment of Integrated Chinese and Western Medicine, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, ChinaEndoscopy Division, Zhejiang Cancer Hospital, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, Zhejiang, ChinaIntroductionBody mass index (BMI) is considered an important factor in tumor prognosis, but its role in gastric cancer (GC) remains controversial. There is a lack of studies exploring the effect of BMI on gastric cancer from the perspective of intratumoral microbiota. This study aimed to compare and analyze the differences in and functions of intratumoral microbiota among GC patients with varying BMIs, aiming to ascertain whether specific microbial features are associated with prognosis in low-BMI (LBMI) gastric cancer patients.MethodsA retrospective analysis of the clinicopathological features and prognosis of 5567 patients with different BMIs was performed between January 2010 and December 2019. Tumor tissues from 189 GC patients were collected for 16S rRNA sequencing, 64 samples were selected for transcriptome sequencing, and 57 samples were selected for untargeted metabolomic analysis.ResultsClinical cohort analysis revealed that GC patients with a low BMI presented poorer clinical and pathological characteristics than those with a non-low-BMI (NLBMI). LBMI was identified as a significant independent risk factor for adverse prognosis, potentially exerting immunosuppressive effects on postoperative adjuvant chemotherapy. 16S rRNA sequencing revealed no significant differences in the alpha and beta diversity of the intratumoral microbiota between the two groups of GC patients. However, LEfSe analysis revealed 32 differential intratumoral microbiota between the LBMI and NLBMI groups. Notably, the genus Abiotrophia was significantly enriched in the LBMI group. Further in-depth analysis indicated that the genus Abiotrophia was inversely associated with eosinophils, P2RY12, and SCN4B genes, and positively linked with LGR6 in LBMI gastric cancer patients. Metabolomic assessments revealed that LBMI was positively associated with purine metabolites, specifically guanine and inosine diphosphate (IDP).DiscussionIn conclusion, LBMI is an independent risk factor for poor prognosis in gastric cancer patients and may have an inhibitory effect on postoperative adjuvant chemotherapy. Intratumor flora of gastric cancer patients with different BMI levels differed, with different immune cell infiltration and metabolic characteristics. The genus Abiotrophia may promote gastric cancer development and progression by regulating eosinophils and the purine metabolism pathway, which provides a new idea for the precise treatment of gastric cancer.https://www.frontiersin.org/articles/10.3389/fcimb.2025.1511900/fullGCBMIintratumoral microbiotaimmune cellsmetabolome |
| spellingShingle | Kang Liu Zhengchen Jiang Zhengchen Jiang Yubo Ma Ruihong Xia Yingsong Zheng Kailai Yin Chuhong Pang Li Yuan Li Yuan Xiangdong Cheng Xiangdong Cheng Zhuo Liu Bo Zhang Shi Wang Multiomics insights into BMI-related intratumoral microbiota in gastric cancer Frontiers in Cellular and Infection Microbiology GC BMI intratumoral microbiota immune cells metabolome |
| title | Multiomics insights into BMI-related intratumoral microbiota in gastric cancer |
| title_full | Multiomics insights into BMI-related intratumoral microbiota in gastric cancer |
| title_fullStr | Multiomics insights into BMI-related intratumoral microbiota in gastric cancer |
| title_full_unstemmed | Multiomics insights into BMI-related intratumoral microbiota in gastric cancer |
| title_short | Multiomics insights into BMI-related intratumoral microbiota in gastric cancer |
| title_sort | multiomics insights into bmi related intratumoral microbiota in gastric cancer |
| topic | GC BMI intratumoral microbiota immune cells metabolome |
| url | https://www.frontiersin.org/articles/10.3389/fcimb.2025.1511900/full |
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