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S100A7 Co-localization and Up-regulation of Filaggrin in Human Sinonasal Epithelial Cells

Current Medical Science 2021年第5期41卷 863-868页

作者： Masahiro Nakamura Kazusaku Kamiya atsushi furuhata Katsuhisa Ikeda Frangois Niyonsaba Department of Otorhinolaryngology Juntendo University School of MedicineTokyo 113-8421Japan Atopy(Allergy)Research Center Junlendo University School of MedicineTokyol 13-8421Japan Biomedical Research Center Graduate School of MedicineJuntendo UniversityTokyo 113-8421Japan Faculty of International Liberal Arts Laboratory of Morphology and Image AnalysisGraduate School of MedicineJuntendo UniversityTokyo 113-8421Japan

Objective:Filaggrin(FLG)is a protein expressed in the epidermis and involved in the maintenance of the epidermal ***,the expression and localization of FLG in the upper airway remain *** present study aimed to determine the significance of FLG and the effect of S100A7 on FLG expression in the upper respiratory ***:Human nasal epithelial cells(HNECs)were cultured and examined for FLG expression and S100A7 effects by real-time polymerase chain reaction and Western *** localization and distribution of FLG were assessed using sinonasal ***:A significant expression of FLG was detected at the mRNA and protein levels in HNECs.A moderate FLG immunoreactivity was observed in the epithelial cells,but no staining was seen in epithelial goblet cells.S100A7 increased the FLG mRNA level in HNECs in a dose-dependent manner and also up-regulated the FLG protein in a dose-dependent ***:This study significantly contributes to a better understanding of the role of FLG in the pathogenesis of airway inflammation from the viewpoint of the epithelial barrier ***-related events in response to S100A7 protein may represent novel therapeutic targets for the treatment of upper airway inflammation.

关键词： nasal epithelial cell filaggrin S100A7 keratinocyte

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Vascular endothelial growth factor 165b expression in stromal cells and colorectal cancer

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World Journal of Gastroenterology 2011年第44期17卷 4867-4874页

作者： Makoto Tayama Tomohisa furuhata Yoshiko Inafuku Kenji Okita Toshihiko Nishidate Toru Mizuguchi Yasutoshi Kimura Koichi Hirata the First Department of Surgery Sapporo Medical University

AIM:To characterize the implications of vascular endothelial growth factor(VEGF)-A in stromal cells and colorectal cancer and the expression of VEGF-A splice ***:VEGF-A expression in tumor and stromal cells from 165 consecutive patients with colorectal cancer was examined by *** association between VEGF-A expression status and clinicopathological factors was *** freshfrozen samples were obtained for laser capture microdissection to analyze the splice variants of ***:VEGF-A was expressed in 53.9% and 42.4% of tumor and stromal cells,***-A expression in tumor cells(t-VEGF-A) was associated with advanced clinical stage(stage 0,1/9;stage 1,2/16;stage 2,32/55;stage 3,38/66;stage 4,16/19,P < 0.0001).VEGF-A expression in stromal cells(s-VEGF-A) increased in the earlier clinical stage(stage 0,7/9;stage 1,6/16;stage 2,33/55;stage 3,22/66;stage 4,5/19;P = 0.004).Multivariate analyses for risk factors of recurrence showed that only s-VEGF-A expression was an independent risk factor for recurrence(relative risk 0.309,95% confidence interval 0.141-0.676,P = 0.0033).The five-year disease-free survival(DFS) rates of t-VEGF-A-positive and-negative cases were 51.4% and 62.9%,*** was no significant difference in t-VEGF-A expression *** five-year DFS rates of s-VEGF-A-positive and-negative cases were 73.8% and 39.9%,respectively.s-VEGFA-positive cases had significantly better survival than s-VEGF-A-negative cases(P = 0.0005).Splice variant analysis revealed that t-VEGF-A was mainly composed of VEGF165 and that s-VEGF-A included both VEGF165 and *** cases with no venous invasion(v0),the level of VEGF165b mRNA was significantly higher(v0 204.5 ± 122.7,v1 32.5 ± 36.7,v2 2.1 ± 1.7,P = 0.03).The microvessel density tended to be lower in cases with higher VEGF165b mRNA ***:s-VEGF-A appears be a good prognostic factor for colorectal cancer and includes VEGF165 and VEGF165b.

关键词： Colorectal cancer Vascular endothelial growth factor-A Vascular endothelial growth factor 165 Microvascular density Stromal cell

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Predictive findings forHelicobacter pylori-uninfected, -infected and -eradicated gastric mucosa: Validation study

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World Journal of Gastroenterology 2013年第27期19卷 4374-4379页

作者： Kazuhiro Watanabe Naoyoshi Nagata Ryo Nakashima Etsuko furuhata Takuro Shimbo Masao Kobayakawa Toshiyuki Sakurai Koh Imbe Ryota Niikura Chizu Yokoi Junichi Akiyama Naomi Uemura Department of Gastroenterology and Hepatology National Center for Global Health and Medicine Department of Clinical Research and Informatics National Center for Global Health and Medicine Department of Gastroenterology and Hepatology National Center for Global Health and MedicineKohnodai Hospital

AIM:To validate the usefulness of screening endoscopy findings for predictingHelicobacter pylori (H. pylori) infection status. METHODS:H. pylori infection status was determined by histology, serology, and the urea breast test in 77 consecutive patients who underwent upper endoscopy. Based on the findings, patients were categorized as H. pylori -uninfected, -infected, or -eradicated cases. Using six photos of certain sites in the stomach per case, we determined the presence or absence of the following endoscopic findings:regular arrangement of collecting venules (RAC), linear erythema, hemorrhage, fundic gland polyp (FGP), atrophic change, rugal hyperplasia, edema, spotty erythema, exudate, xanthoma, and mottled patchy erythema (MPE). The diagnostic odds ratio (DOR) and inter-observer agreement (Kappa value) for these 11 endoscopic findings used in the determination of H. pylori infection status were calculated. RESULTS:Of the 77 patients [32 men and 45 women; mean age (SD), 39.7 (13.4) years] assessed, 28 were H. pylori uninfected, 28 were infected, and 21 were eradicated. DOR values were significantly high (< 0.05) for the following H. pylori cases:uninfected cases with RAC (11.5), linear erythema (24.5), hemorrhage (4.1), and FGP (34.5); for infected cases with atrophic change (8.67), rugal hyperplasia (15.8), edema (14.2), spotty erythema (11.5), and exudate (3.52); and for eradicated cases with atrophic change (32.4) and MPE (103.0). Kappa values were excellent for FGP (0.93), good for RAC (0.63), hemorrhage (0.79), atrophic change (0.74), and MPE (0.75), moderate for linear erythema (0.51), rugal hyperplasia (0.49), edema (0.58), spotty erythema (0.47), and exudate (0.46), and poor for xanthoma (0.19). CONCLUSION:The endoscopic findings of RAC, hemorrhage, FGP, atrophic change, and MPE will be useful for predicting H. pylori infection status.

关键词： Diagnostic odds ratio Endoscopic finding Eradication therapy Helicobacter pylori Inter-observer agreement

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