The necessity of a human epigenome project

Area of Science:

• Cancer Research
• Epigenetics
• Molecular Biology

Background:

• Human tumors exhibit profound disruptions in DNA methylation and histone modification patterns.
• The cancer epigenome is marked by widespread genomic hypomethylation and tumor suppressor gene promoter hypermethylation.
• Key genes show altered histone codes, and a global loss of specific histone H4 modifications occurs in cancer cells.

Purpose of the Study:

• To highlight the critical need for a comprehensive understanding of epigenetic changes in cancer.
• To emphasize the current limited knowledge of the full extent of epigenetic alterations in transformed cells.
• To advocate for a large-scale collaborative effort to investigate cancer epigenetics.

Main Methods:

• This abstract does not detail specific experimental methods.
• It focuses on summarizing known epigenetic alterations in cancer.
• It proposes a future research direction.

Main Results:

• Cancer cells display a significantly altered epigenetic landscape compared to normal cells.
• Specific patterns include genomic hypomethylation and hypermethylation of tumor suppressor gene promoters.
• Alterations in histone modifications, such as loss of specific histone H4 marks, are evident.

Conclusions:

• Current knowledge of cancer epigenetics is incomplete, representing only a fraction of the true alterations.
• A deeper understanding of DNA methylation and histone modification changes is crucial for comprehending tumorigenesis.
• The establishment of an International Human Epigenome Project is proposed as a necessary response to this knowledge gap.