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RISS 인기검색어
- 검색키워드
- 저자 : De-Qiang Ma (검색결과 2 건)
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Integrin-linked Kinase Functions as a Tumor Promoter in Bladder Transitional Cell Carcinoma
Wang, De-Lin,Lan, Jian-Hua,Chen, Liang,Huang, Biao,Li, Zeng,Zhao, Xiu-Min,Ma, Qiang,Sheng, Xia,Li, Wen-Bin,Tang, Wei-Xue Asian Pacific Journal of Cancer Prevention 2012 Asian Pacific journal of cancer prevention Vol.13 No.6
The aim of this study was to elucidate the role of the integrin-linked kinase (ILK) gene in development of human bladder transitional cell carcinoma (BTCC). Expression of ILK protein and ILK mRNA in 56 cases of human BTCC tissue and in 30 cases of adjacent normal bladder tissue was detected by immunohistochemistry S-P and reverse transcription polymerase chain reaction (RT-PCR), respectively. Four specific miRNA RNAi vectors targeting human ILK were synthesized and transfected into BIU-87 cells by liposome to obtain stable expression cell strains. The influence of ILK on proliferation of BTCC was detected by MTT, FCM on athymic mouse tumorigenesis. The positive rate of ILK protein in BTCC tissue (53.6%) was much higher than adjacent normal bladder tissue (10.0%) (p<0.05). Similarly, expression of ILK mRNA in BTCC tissue ($0.540{\pm}0.083$) was significantly higher than in adjacent normal bladder tissue ($0.492{\pm}0.070$) (p<0.05). MTT showed that the proliferation ability of miRNA-ILK transfected group was clearly decreased (p<0.05), the cell cycle being arrested in G0/G1-S, an tumorigenesis in vivo was also significantly reduced (p<0.05). ILK gene transcription and protein expression may be involved in the development of BTCC, so that ILK might be the new marker for early diagnosis and the new target for gene treatment.
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Yin-Hua Zhang,De-Ping Ding,De-Qiang Ma,Juan Li,Lin-Li Chen,Kang-Jian Ao,You-You Tian 연세대학교의과대학 2018 Yonsei medical journal Vol.59 No.9
Purpose: To explore the influence of S100 calcium binding protein A4 (S100A4) knockout (KO) on methionine-choline-deficient(MCD) diet-induced non-alcoholic fatty liver disease (NAFLD) in mice. Materials and Methods: S100A4 KO mice (n=20) and their wild-type (WT) counterparts (n=20) were randomly divided into KO/MCD, Ko/methionine-choline-sufficient (MCS), WT/MCD, and WT/MCS groups. After 8 weeks of feeding, blood lipid and liverfunction-related indexes were measured. HE, Oil Red O, and Masson stainings were used to observe the changes of liver histopathology. Additionally, expressions of S100A4 and proinflammatory and profibrogenic cytokines were detected by qRT-PCR andWestern blot, while hepatocyte apoptosis was revealed by TUNEL staining. Results: Serum levels of aminotransferase, aspartate aminotransferase, triglyceride, and total cholesterol in mice were increasedafter 8-week MCD feeding, and hepatocytes performed varying balloon-like changes with increased inflammatory cell infiltrationand collagen fibers; however, these effects were improved in mice of KO/MCD group. Meanwhile, total NAFLD activity scoresand fibrosis were lower compared to WT+MCD group. Compared to WT/MCS group, S100A4 expression in liver tissue of WT/MCD group was enhanced. The expression of proinflammatory (TNF-α, IL-1β, IL-6) and profibrogenic cytokines (TGF-β1, COL1A1,α-SMA) in MCD-induced NAFLD mice were increased, as well as apoptotic index (AI). For MCD group, the expressions ofproinflammatory and profibrogenic cytokines and AI in KO mice were lower than those of WT mice. Conclusion: S100A4 was detected to be upregulated in NAFLD, while S100A4 KO alleviated liver fibrosis and inflammation, inaddition to inhibiting hepatocyte apoptosis.
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