DICP OpenIR
Overexpression of hMSH2 and hMLH1 protein in certain gastric cancers and their surrounding mucosae
Li, Mei1; Liu, Lina2; Wang, Zhaohui1; Wang, Lihong1; Liu, Zhimin1; Xu, Guowang3; Lu, Shen1; Lv S(吕申); Lv S(吕申)
KeywordHmsh2 Hmlh1 Pcna Ki67 Gastric Cancer
Source PublicationONCOLOGY REPORTS
2008-02-01
Volume19Issue:2Pages:401-406
Indexed BySCI
SubtypeArticle
Department18
Funding Project1808
Contribution Rank3;6
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
WOS SubjectOncology
WOS Research AreaOncology
WOS KeywordDNA MISMATCH REPAIR ; NONPOLYPOSIS COLORECTAL-CANCER ; MICROSATELLITE INSTABILITY ; GENE HMSH2 ; EXPRESSION ; CARCINOMA ; PROMOTER ; DEFECTS ; CYCLE
AbstractMismatch repair (MMR) deficiency is closely related to oncogenesis, which is usually accompanied with the loss of expression of hMSH2 and/or hMLH1. These two proteins are detected in many gastric cancers (GCs), and even their overexpression have been reported in certain other cancers. We studied the protein expression levels of MMR (hMSH2 and hMLH1), PCNA and Ki67 in the cancers and surrounding mucosae (SMs) collected from the patients with GC and gastric mucosa samples from non-cancer patients (NCMs), using immunohistochemistry. Our results demonstrated that the positive MMR protein expression levels were 69.1% (132/191), 33.1% (44/133) and 7.1% (3/42) in GCs, SMs and NCMs, respectively (P<0.001); the positive PCNA protein expression levels were 92.1% (176/191), 75.9% (101/133) and 23.8% (10/42), respectively (P<0.001); the positive Ki67 protein expression levels were 79.1% (68/86), 29.2% (21/72) and 45.2% (19/42), respectively (P<0.001). In addition, the MMR protein expression significantly correlated to the level of PCNA protein expression (r(s)=0.170, P=0.019), but not to the level of Ki67 protein expression in GCs. Notably, the overexpression of MMR protein was not correlated to either PCNA or Ki67 protein expression in SMs and NCMs. These results support the evidence that MMR protein expression may increase prior to gastric cancer occurrence, and in a view of early diagnosis, the detection of MMR protein by IHC may be helpful as a marker in early prediction of gastric cancer.
Language英语
URL查看原文
WOS IDWOS:000252648600013
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/100481
Collection中国科学院大连化学物理研究所
Corresponding AuthorLv S(吕申); Lv S(吕申)
Affiliation1.Dalian Med Univ, Affiliated Hosp 2, Lab Ctr, Dalian 116027, Liaoning Prov, Peoples R China
2.Dalian Med Univ, First Hosp, Dept Gastroenterol, Dalian 116011, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatog Res & Applicat Ctr, Dalian 116027, Liaoning Prov, Peoples R China
Recommended Citation
GB/T 7714
Li, Mei,Liu, Lina,Wang, Zhaohui,et al. Overexpression of hMSH2 and hMLH1 protein in certain gastric cancers and their surrounding mucosae[J]. ONCOLOGY REPORTS,2008,19(2):401-406.
APA Li, Mei.,Liu, Lina.,Wang, Zhaohui.,Wang, Lihong.,Liu, Zhimin.,...&吕申.(2008).Overexpression of hMSH2 and hMLH1 protein in certain gastric cancers and their surrounding mucosae.ONCOLOGY REPORTS,19(2),401-406.
MLA Li, Mei,et al."Overexpression of hMSH2 and hMLH1 protein in certain gastric cancers and their surrounding mucosae".ONCOLOGY REPORTS 19.2(2008):401-406.
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