The Functions of Histone Modification Enzymes in Cancer

Area of Science:

• Molecular Biology
• Epigenetics
• Biochemistry

Background:

• Posttranslational modifications regulate protein function, localization, and stability.
• Histone modification impacts chromatin structure, affecting DNA-templated processes like transcription, replication, recombination, and repair.
• These processes are crucial for cell cycle, growth, and apoptosis.

Purpose of the Study:

• To review the diverse types of histone modifications.
• To summarize the roles of histone modification and de-modification enzymes.
• To elucidate the involvement of histone modification enzymes in human cancer initiation and progression.

Main Methods:

• Literature review of recent studies on histone modification enzymes and cancer.
• Analysis of the mechanisms by which these enzymes drive or suppress malignancies.
• Synthesis of information on the balance between histone modifying and de-modifying enzymes.

Main Results:

• Histone modifications include acetylation, methylation, phosphorylation, ubiquitination, sumoylation, biotination, citrullination, poly-ADP-ribosylation, and N-glycosylation.
• Histone modification enzymes are critical for maintaining cellular functions.
• Dysfunction of these enzymes is a significant factor in human cancer development.

Conclusions:

• Histone modification enzymes play a dual role in cancer, capable of driving or suppressing malignancies.
• Understanding these enzymes' mechanisms is key to comprehending cancer initiation and progression.
• Targeting histone modification pathways may offer therapeutic strategies for human cancers.