دورية أكاديمية
Association between gut microbiota and CpG island methylator phenotype in colorectal cancer
| العنوان: | Association between gut microbiota and CpG island methylator phenotype in colorectal cancer |
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| المؤلفون: | Pyoung Hwa Park, Kelsey Keith, Gennaro Calendo, Jaroslav Jelinek, Jozef Madzo, Raad Z. Gharaibeh, Jayashri Ghosh, Carmen Sapienza, Christian Jobin, Jean-Pierre J. Issa |
| المصدر: | Gut Microbes, Vol 16, Iss 1 (2024) |
| بيانات النشر: | Taylor & Francis Group, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Diseases of the digestive system. Gastroenterology |
| مصطلحات موضوعية: | Gut microbiota, Colorectal cancer, CpG island methylator phenotype, DNA methylation, Epigenetics, Diseases of the digestive system. Gastroenterology, RC799-869 |
| الوصف: | The intestinal microbiota is an important environmental factor implicated in CRC development. Intriguingly, modulation of DNA methylation by gut microbiota has been reported in preclinical models, although the relationship between tumor-infiltrating bacteria and CIMP status is currently unexplored. In this study, we investigated tumor-associated bacteria in 203 CRC tumor cases and validated the findings using The Cancer Genome Atlas datasets. We assessed the abundance of Bacteroides fragilis, Escherichia coli, Fusobacterium nucleatum, and Klebsiella pneumoniae through qPCR analysis and observed enrichment of all four bacterial species in CRC samples. Notably, except for E. coli, all exhibited significant enrichment in cases of CIMP. This enrichment was primarily driven by a subset of cases distinguished by high levels of these bacteria, which we labeled as “Superhigh”. The bacterial Superhigh status showed a significant association with CIMP (odds ratio 3.1, p-value = 0.013) and with MLH1 methylation (odds ratio 4.2, p-value = 0.0025). In TCGA CRC cases (393 tumor and 45 adj. normal), bacterial taxa information was extracted from non-human whole exome sequencing reads, and the bacterial Superhigh status was similarly associated with CIMP (odds ratio 2.9, p |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 19490976 1949-0984 1949-0976 |
| العلاقة: | https://doaj.org/toc/1949-0976Test; https://doaj.org/toc/1949-0984Test |
| DOI: | 10.1080/19490976.2024.2363012 |
| الوصول الحر: | https://doaj.org/article/2856375f622b4bc5bda4e07109ea89feTest |
| رقم الانضمام: | edsdoj.2856375f622b4bc5bda4e07109ea89fe |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 19490976 19490984 |
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| DOI: | 10.1080/19490976.2024.2363012 |