國家衛生研究院 NHRI:Item 3990099045/2291
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    題名: Molecular genetic evidence supporting a novel human hepatocellular carcinoma tumor suppressor locus at 13q 12.11
    作者: Chen, CF;Yeh, SH;Chen, DS;Chen, PJ;Jou, YS
    貢獻者: Division of Molecular and Genomic Medicine
    摘要: A novel 1-cM (1.8 Mb) homozygous deletion (HD) on 13q12.11 was identified in a human hepatocellular carcinoma (HCC) cell line, SK-Hep-1, after high-density genetic marker scan and Southern blotting analysis. A loss of heterozygosity (LOH) analysis indicated that LOH frequency of the HD region in 48 pairs of HCC tissues was 52%. Interestingly, the occurrence of LOH in the 13q12.11 HD region is significantly associated with early-onset HCC, inferred from Fisher's exact test (P = 0.0047) and Mann-Whitney test (P = 0.023). Since the novel 1-cM (1.8 Mb) HD region is gene-rich with more than 37 predicted transcripts, we used a candidate gene approach by examining down-regulation of known tumor suppressor genes (TSGs), including LATS2, TG737, CRYL1, and GJB2, in HCC tissues. We detected only 14% down-regulation of the LAST2 gene that flanks the outside of the HD, in HCC tissues, by quantitative RT-PCR assays. However, we observed significant down-regulation of the TG737, CRYL1, and GJB2 genes located within the HD in 59, 64, and 71% of HCC tissues, respectively. Together, our results indicated that the identified 13q12.11 HD region contained at least three significant down-regulated TSGs, and preferential LOH in early-onset HCC patients is a putative tumor suppressor locus in HCC.
    關鍵詞: Oncology;Genetics & Heredity
    日期: 2005-11
    關聯: Genes Chromosomes and Cancer. 2005 Nov;44(3):320-328.
    Link to: http://dx.doi.org/10.1002/gcc.20247
    JIF/Ranking 2023: http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=NHRI&SrcApp=NHRI_IR&KeyISSN=1045-2257&DestApp=IC2JCR
    Cited Times(WOS): https://www.webofscience.com/wos/woscc/full-record/WOS:000232248300011
    Cited Times(Scopus): https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84984578438
    顯示於類別:[葉秀慧(2001-2005)] 期刊論文
    [周玉山(1996-2005)] 期刊論文

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