[Inheritance instability of chromosome 6q in patients with gastric cancer]

[Inheritance instability of chromosome 6q in patients with gastric cancer] Research Abstract Details 

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[Inheritance instability of chromosome 6q in patients with gastric cancer] Abstract Text:

Ping Chen,Yong-Lie Chu,Tu-Sheng Song,Li Lei,Jian-Sheng Wang,Kang Wang,Lei Ni,Yue-Ying Niu,

OBJECTIVE: To investigate the possible correlation between the microsatellite DNA instability (MSI), loss of heterozygosity (LOH ) on the long arm of chromosome 6 (6q) and the clinicopathologic features in Chinese patients with gastric cancer. METHODS: PCR-SSLP-Silver Stain method was used to detect four loci MSI and LOH in gastric tumor and paired normal control tissues of twenty and seven cases. RESULTS: In our study, the positive of MSI at one or more loci were observed in 16 out of 27 informative individuals (59.2%). 7 cases of 11 informative individuals without MSI were detected to happen the LOH at one or more loci (63.6%). And both MSI and LOH were frequently resulting at loci D6S434 (6q16.3-q21) and D6S404 (6q16.3-q23.2). MSI and LOH occurred in both well-differentiated and poor- differentiated gastric cancers, with a slight tendency of high grade MSI (MSI-H) existing chiefly in well-differentiated gastric cancer. CONCLUSION: The existence of MSI and/or LOH on 6q in 80% gastric carcinoma suggests that the genetic instability of 6q plays an important role in Chinese gastric cancer. The frequency of MSI and LOH has no significant relationship to clinicopathologic features such as age, gender, histological grade of differentiation and stages of tumor. The critical region of allelic deletion on 6q in Chinese gastric cancer is similar to those in other countries, and further confirms the presence of a putative tumor suppressor gene in this region.

[Inheritance instability of chromosome 6q in patients with gastric cancer] Publishing Authors By Initials

P Chen,YL Chu,TS Song,L Lei,JS Wang,K Wang,L Ni,YY Niu,

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[Inheritance instability of chromosome 6q in patients with gastric cancer] Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Sichuan da xue xue bao. Yi xue ban = Journal of Si

VOLUME: 37

Page Numbers: 852-5

Journal Abbreviation: Sichuan Da Xue Xue Bao Yi Xue

ISSN: 1672-173X

DAY: 22

MONTH: Nov

YEAR: 2006

[Inheritance instability of chromosome 6q in patients with gastric cancer] Information

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LANGUAGE: chi

NlmUniqueID: 101162609

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AFFILIATION: Department of Genetics and Molecule Biology, Xi'an Jiaotong University School of Medicine, Xi'an 710061, China.

Country: China

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MEDLINETA: Sichuan Da Xue Xue Bao Yi Xue

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