2012, Volume 6, Issue 4
Frontiers of Medicine >> 2012, Volume 6, Issue 4 doi: 10.1007/s11684-012-0225-3
Genome-wide association studies: inherent limitations and future challenges
Department of Epidemiology, Second Military Medical University, Shanghai 200433, China
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Abstract
Genome-wide association studies (GWAS) have achieved great success in identifying genetic variants related to complex human diseases such as cancer and have provided valuable insights into their genetic architecture. Recently, GWAS is quite the fashion in China. However, there are issues related to its nature. Enormous work needs to be done in the post-GWAS era. Deep sequencing followed by functional studies will be needed to elucidate the underpinning biological mechanisms and further translate GWAS findings into medical practice. Along with pharmacogenomics, the success of GWAS in identifying genetic risk factors and genetic differences in drug response has been gradually enabling personalized medicine. In this article, we used hepatocellular carcinoma (HCC) as an example to demonstrate some of the inherent limitations and summarized future challenges of GWAS.
Keywords
genome-wide association studies (GWAS) ; genetic variant ; cancer ; limitation ; challenge
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