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Cytapheresis re-induces high-rate steroid-free remission in patients with steroid-dependent and steroid-refractory ulcerative colitis

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World Journal of Gastroenterology 2021年第12期27卷 1194-1212页

作者： Masahiro Iizuka Takeshi Etou yosuke shimodaira Takashi Hatakeyama Shiho Sagara Akita Health Care Center Akita Red Cross HospitalAkita 010-0001Japan Department of Gastroenterology Akita Red Cross HospitalAkita 010-1495Japan Department of Gastroenterology and Neurology Akita University Graduate School of MedicineAkita 010-8543Japan akashi Hatakeyama Department of NephrologyAkita Red Cross HospitalAkita 010-1495Japan

BACKGROUND It is a crucial issue for patients with refractory ulcerative colitis(UC),including steroid-dependent and steroid-refractory patients,to achieve and maintain steroid-free ***,clinical studies focused on the achievement of steroid-free remission in refractory UC patients are ***(CAP)is a non-pharmacological extracorporeal therapy that is effective for active UC with fewer adverse *** study comprised UC patients treated with CAP and suggested the efficacy of CAP for refractory UC *** To clarify the efficacy of CAP in achieving steroid-free remission in refractory UC *** We retrospectively reviewed the collected data from 55 patients with refractory UC treated with *** analyzed the following points:(1)Efficacy of the first course of CAP;(2)Efficacy of the second,third,and fourth courses of CAP in patients who experienced relapses during the observation period;(3)Efficacy of CAP in colonic mucosa;and(4)Long-term efficacy of *** efficacy was evaluated using Lichtiger’s clinical activity index or Sutherland index(disease activity index).Mucosal healing was evaluated using Mayo endoscopic *** primary and secondary endpoints were the rate of achievement of steroidfree remission and the rate of sustained steroid-free remission,*** analysis was performed using the paired t-test and chi-squared *** The rates of clinical remission,steroid-free remission,and poor effectiveness after CAP were 69.1%,45.5%,and 30.9%,*** were no significant differences in rate of steroid-free remission between patients with steroiddependent and steroid-refractory *** mean disease activity index and Lichtiger’s clinical activity index scores were significantly decreased after CAP(P<0.0001).The rates of steroid-free remission after the second,third,and fourth courses of CAP in patients who achieved steroid-free remission after the first course of CAP were 8

关键词： Ulcerative colitis Cytapheresis Steroid-dependent Steroid-refractory Steroid-free remission Inflammatory bowel disease

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Micro RNA-320 family is downregulated in colorectal adenoma and affects tumor proliferation by targeting CDK6

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World Journal of Gastrointestinal Oncology 2016年第7期8卷 532-542页

作者： Toshihiro Tadano Yoichi Kakuta Shin Hamada yosuke shimodaira Masatake Kuroha Yoko Kawakami Tomoya Kimura Hisashi Shiga Katsuya Endo Atsushi Masamune Seiichi Takahashi Yoshitaka Kinouchi Tooru Shimosegawa Division of Gastroenterology Tohoku University Graduate School of Medicine Community Gastroenterology (Iwaki Kyoritsu Hospital) Tohoku University Graduate School of Medicine Health Administration Center Center for the Advancement of Higher Education Tohoku University

AIM: To investigate the microR NA(miR NA) expression during histological progression from colorectal normal mucosa through adenoma to carcinoma within a lesion. METHODS: Using microarray, the sequential changes in miR NA expression profiles were compared in colonic lesions from matched samples; histologically, nonneoplastic mucosa, adenoma, and submucosal invasive carcinoma were microdissected from a tissue sample. Cell proliferation assay was performed to observe the effect of miR NA, and its target genes were predicted using bioinformatics approaches and the expression profile of SW480 transfected with the miR NA mimics. mR NA and protein levels of the target gene in colon cancer cell lines with a mimic control or miR NA mimics were measured using qR TPCR and Western blotting. The expression levels of miR NA and target gene in colorectal tissue samples were also ***: Microarray analysis identified that the miR-320 family, including miR-320 a, miR-320 b, miR-320 c, miR-320 d and miR-320 e, were differentially expressed in adenomaand submucosal invasive carcinoma. The mi R-320 family, which inhibits cell proliferation, is frequently downregulated in colorectal adenoma and submucosal invasive carcinoma tissues. Seven genes including CDK6 were identified to be common in the results of gene expression array and bioinformatics analyses performed to find the target gene of the miR-320 family. We confirmed that mR NA and protein levels of CDK6 were significantly suppressed in colon cancer cell lines with miR-320 family mimics. CDK6 expression was found to increase from non-neoplastic mucosa through adenoma to submucosal invasive carcinoma tissues and showed an inverse correlation with miR-320 family ***: MiR-320 family affects colorectal tumor proliferation by targeting CDK6, plays important role in its growth, and is considered to be a biomarker for its early detection.

关键词： CDK6 Colorectal cancer Mi R-320 family Colorectal adenoma Laterally spreading type

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