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논문 기본 정보

자료유형
학술저널
저자정보
Satomi Shiba (Department of Surgery, Jichi Medical University, Shimotsuke, Japan.Department of Breast Oncology, Jichi Medical University Hospital, Shimotsuke, Japan.) Michiko Harao (Department of Surgery, Jichi Medical University, Shimotsuke, Japan.Department of Breast Oncology, Jichi Medical University Hospital, Shimotsuke, Japan.) Akira Saito (Department of Surgery, Jichi Medical University, Shimotsuke, Japan.) Masako Sakuragi (Department of Surgery, Jichi Medical University, Shimotsuke, Japan.Department of Breast Oncology, Jichi Medical University Hospital, Shimotsuke, Japan.) Joji Kitayama (Department of Surgery, Jichi Medical University, Shimotsuke, Japan.Department of Breast Oncology, Jichi Medical University Hospital, Shimotsuke, Japan.) Naohiro Sata (Department of Surgery, Jichi Medical University, Shimotsuke, Japan.)
저널정보
한국유방암학회 Journal of Breast Cancer Journal of Breast Cancer Vol.27 No.2
발행연도
2024.4
수록면
121 - 129 (9page)
DOI
10.4048/jbc.2023.0285

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This study investigated the clinical effect of metformin on breast cancer patients with preexisting type 2 diabetes mellitus (T2DM). We analyzed 177 patients with T2DM who underwent breast cancer surgery and assessed tumor-associated macrophages (TAMs) and tumor-infiltrating lymphocytes (TILs) in patients who underwent tumor resection with or without metformin treatment using multiplex immunohistochemistry (IHC). Patients who received metformin either pre- or postoperatively exhibited reduced distant organ recurrence and improved postoperative recurrence-free survival compared to those of patients who did not. Additionally, in a subgroup of 40 patients receiving preoperative systemic therapy, metformin treatment was associated with increased rates of pathological complete response. IHC analysis revealed significantly lower levels of cluster of differentiation (CD) 68(+) CD163(+) M2-type TAMs (p < 0.01) but higher CD3(+) and CD8(+) TIL densities in the metformin-treated group compared with the same parameters in those without metformin treatment, with a significant difference in the CD8(+)/CD3(+) TIL ratio (p < 0.01). Despite the constraints posed by our small sample size, our findings suggest a potential role for metformin in modulating the immunological microenvironment, which may contribute to improved outcomes in diabetes patients with breast cancer.

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