Immunoregulatory influence of abundant MFG-E8 expression by esophageal cancer treated with chemotherapy

Cancer Science
Takashi KanemuraHideaki Tahara

Abstract

Milk fat globule-epidermal growth factor factor 8 (MFG-E8) is secreted from macrophages and is known to induce immunological tolerance mediated by regulatory T cells. However, the roles of the MFG-E8 that is expressed by cancer cells have not yet been fully examined. Expression of MFG-E8 was examined using immunohistochemistry in surgical samples from 134 patients with esophageal squamous cell carcinoma. The relationships between MFG-E8 expression levels and clinicopathological factors, including tumor-infiltrating lymphocytes, were evaluated. High MFG-E8 expression was observed in 23.9% of the patients. The patients with tumors highly expressing MFG-E8 had a significantly higher percentage of neoadjuvant chemotherapy (NAC) history (P < .0001) and shorter relapse-free survival (P = 0.012) and overall survival (OS; P = .0047). On subgroup analysis, according to NAC history, patients with high MFG-E8 expression had significantly shorter relapse-free survival (P = .027) and OS (P = .0039) only when they had been treated with NAC. Furthermore, tumors with high MFG-E8 expression had a significantly lower ratio of CD8+ T cells/regulatory T cells in tumor-infiltrating lymphocytes (P = .042) only in the patients treated with NAC, and t...Continue Reading

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May 7, 2020·Cell Communication and Signaling : CCS·Yunxiang ZhouAnwen Shao
Jan 5, 2020·Gynecological Endocrinology : the Official Journal of the International Society of Gynecological Endocrinology·Na LiPei Wang

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