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Year : 2016  |  Volume : 53  |  Issue : 4  |  Page : 513--517

Microsatellite instability in stage II colorectal cancer: An Indian perspective

AP Dubey, S Vishwanath, P Nikhil, A Rathore, A Pathak 
 Department of Medical Oncology, Army Hospital (Research and Referral), New Delhi, India

Correspondence Address:
A Rathore
Department of Medical Oncology, Army Hospital (Research and Referral), New Delhi
India

INTRODUCTION: Around 80% of colorectal carcinoma are associated with chromosomal instability (CIN) while rest of 20 % are euploid, possessing defect in mis match repair system (MMR) quintessential for surveillance and correction of errors in introduced into microsatellites. MATERIALS AND METHODS: We analyse all stage II CRC for MSI who presented at MDTC at Army hospital (research and refrral) new delhi during last 2 years (Jan 14 to Dec 2015). RESULTS: We found that 22.2% patients out of 45 patients with stageII CRC being MSI-. high. We also noticed all suchcases were associated with loss of expression of PMS2 & MLH1, that was in contrast other studies where loss of MLH1 and MSH@, MSH6 were seen more commonly. CONCLUSION: MSI occurs in a significant proportion of colorectal cancers in young (<50 years old) patients. Young age at colorectal cancer diagnosis, proximal tumor location, family history of colorectal cancer were independent predictors of MSI status in our patients. In a proportion of these young patients with MSI tumors, loss of expression of proteins by 2 MMR genes PMS2 and hMLH1 has been identified.


How to cite this article:
Dubey A, Vishwanath S, Nikhil P, Rathore A, Pathak A. Microsatellite instability in stage II colorectal cancer: An Indian perspective.Indian J Cancer 2016;53:513-517


How to cite this URL:
Dubey A, Vishwanath S, Nikhil P, Rathore A, Pathak A. Microsatellite instability in stage II colorectal cancer: An Indian perspective. Indian J Cancer [serial online] 2016 [cited 2020 Jul 13 ];53:513-517
Available from: http://www.indianjcancer.com/article.asp?issn=0019-509X;year=2016;volume=53;issue=4;spage=513;epage=517;aulast=Dubey;type=0