タイラ　ナルト   Naruto Taira   平　成人    所属   川崎医科大学  医学部 臨床医学　乳腺甲状腺外科学    職種   教授
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Baseline gut microbiota as a predictive marker for the efficacy of neoadjuvant chemotherapy in patients with early breast cancer: a multicenter prospective cohort study in the Setouchi Breast Project-14.
掲載誌名	正式名：Breast cancer research and treatment 略　 称：Breast Cancer Res Treat ISSNコード：15737217/01676806
掲載区分	国外
巻・号・頁	208(1),pp.67-77
著者・共著者	Shogo Nakamoto, Yukiko Kajiwara, Kohei Taniguchi, Akira I Hida, Yuichiro Miyoshi, Takanori Kin, Mari Yamamoto, Daisuke Takabatake, Shinichiro Kubo, Hajime Hikino, Yutaka Ogasawara, Masahiko Ikeda, Hiroyoshi Doihara, Tadahiko Shien, Naruto Taira, Takayuki Iwamoto, Shinichi Toyooka
発行年月	2024/11
概要	PURPOSE:Various studies have demonstrated the causal relationship between gut microbiota and efficacy of chemotherapy; however, the impact of gut microbiota on breast cancer has not been fully elucidated. This study aimed to evaluate the associations between the gut microbiota before neoadjuvant chemotherapy and its consequent efficacy in breast cancer.METHODS:This prospective observational study included patients who received neoadjuvant chemotherapy for primary early breast cancer at eight institutions between October 1, 2019, and March 31, 2022. We performed 16S rRNA analysis of fecal samples and α and β diversity analyses of the gut microbiota. The primary endpoint was the association between the gut microbiota and pathological complete response (pCR) to neoadjuvant chemotherapy.RESULTS:Among the 183 patients, the pCR rate after neoadjuvant chemotherapy was 36.1% in all patients and 12.9% (9/70), 69.5% (41/59), and 29.6% (16/54) in those with the luminal, human epidermal growth factor receptor 2, and triple-negative types, respectively. The α diversity of the gut microbiota did not significantly differ between patients with pCR and those without pCR. Among the gut microbiota, two species (Victivallales, P = 0.001 and Anaerolineales, P = 0.001) were associated with pCR, and one (Gemellales, P = 0.002) was associated with non-pCR.CONCLUSION:Three species in the gut microbiota had potential associations with neoadjuvant chemotherapy efficacy, but the diversity of the gut microbiota was not associated with response to chemotherapy. Further research is needed to validate our findings.
DOI	10.1007/s10549-024-07395-7
PMID	38888797