@techreport{oai:kindai.repo.nii.ac.jp:02000554,
 author = {三長, 孝輔 and Minaga, Kosuke},
 month = {2023-12-15},
 note = {本研究では高脂肪食による肥満が自己免疫性膵炎(AIP)の発症に及ぼす効果を検討した。MRL/MpJマウスに普通食または高脂肪食を摂取させた後、poly (I:C) を腹腔内注射しAIPを誘導した。病理学的検討から、高脂肪食摂取による肥満はAIPを悪化させ、膵臓における形質細胞様樹状細胞(pDC)を活性化し、I型IFNの発現を増加させた。I型IFN経路の中和により高脂肪食摂取によるAIPの悪化は抑制された。高脂肪食による腸管TJPの発現に有意な変化は認めなかった。以上の結果から、高脂肪食摂取が膵臓におけるpDCの活性化を誘導しI型IFNの産生を亢進することによりAIPを悪化させることが判明した。, Although autoimmune pancreatitis (AIP) predominantly occurs in middle-aged and elderly men, the roles of eating habits and lifestyle in the pathogenesis of AIP are poorly understood. In this study, we examined whether a high-fat diet (HFD), preferred by middle-aged and elderly men, increases sensitivity to experimental AIP. We modeled AIP in MRL/MpJ mice by repeated injections of polyinosinic:polycytidylic acid. HFD exacerbated AIP development and promoted pancreatic accumulation of interferon (IFN)-α-producing plasmacytoid dendritic cells (pDCs). Neutralization of type I IFN signaling pathways prevented the development of severe AIP induced by HFD. In contrast, leaky gut was less likely to be associated with the HFD-induced exacerbation of AIP, as was evidenced by the lack of significant alterations in the jejunal or ileal expression of tight junction proteins. These data suggest that HFD exacerbates experimental AIP through the activation of pDCs producing IFN-α., 研究分野：消化器内科学},
 title = {生活習慣に起因する腸管バリア機能の破綻が自己免疫性膵炎の発症に果たす役割の解明},
 year = {}
}