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Multiomics Analysis of TMEM200A as a Pan-Cancer Biomarker
Published on: September 15, 2023
Epimutations and cancer predisposition: importance and mechanisms
Luke B Hesson1, Megan P Hitchins, Robyn L Ward
1Lowy Cancer Research Centre and Prince of Wales Clinical School, University of New South Wales, Kensington, New South Wales, Australia.
Current Opinion in Genetics & Development
|April 3, 2010
Summary
Germline mutations and epimutations can cause inherited cancer predisposition syndromes. Understanding epigenetic predisposition is crucial for cancer risk assessment and developing targeted epigenome therapies.
Area of Science:
- Genetics
- Epigenetics
- Cancer Biology
Background:
- Germline sequence mutations in tumor suppressor genes are known causes of cancer predisposition syndromes.
- Epimutations, alterations in gene expression without DNA sequence changes, are increasingly recognized as potential causes of inherited diseases.
- Hereditary non-polyposis colorectal cancer (HNPCC) is one syndrome where epimutations are being investigated.
Purpose of the Study:
- To define 'epigenetic predisposition' as an inherited tendency towards an altered epigenetic state in normal tissues.
- To explore how genetic variations (cis or trans acting) might influence epigenetic variations.
- To highlight the importance of understanding epimutation origins for cancer risk assessment and epigenome-targeted therapies.
Main Methods:
- This study is primarily conceptual, reviewing existing literature and proposing a framework.
- It involves defining key terms and exploring potential molecular mechanisms.
- The approach integrates genetic and epigenetic concepts in the context of inherited disease.
Main Results:
- Epigenetic predisposition is defined as an inherited propensity to an altered epigenetic state conferring disease risk.
- Genetic sequence variations can contribute to epigenetic variations.
- Understanding epimutation origins is vital for advancing cancer research.
Conclusions:
- Epimutations represent a significant, yet less understood, mechanism in inherited cancer predisposition.
- Further research into the origins and implications of epigenetic predisposition is warranted.
- This understanding will be critical for future cancer risk assessment and therapeutic strategies targeting the epigenome.
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