DNA Damage and Epigenetic Changes in Kidney Diseases - Focused on Transcription Factors in Podocytes

Kaori Hayashi1, Akihito Hishikawa, Hiroshi Itoh

  • 1Department of Internal Medicine, School of Medicine, Keio University, 35 Shinanomachi, Shinjukuku, Tokyo 160-8582, Japan. kaorihayashi@keio.jp.

Insights

Epigenetic changes, driven by DNA damage and impaired repair, contribute to cardiovascular and kidney diseases. Transcription factor KLF4 shows therapeutic potential for proteinuric kidney diseases via epigenetic mechanisms.

Area of Science:

  • Epigenetics and Molecular Medicine
  • Nephrology and Cardiovascular Research

Background:

  • Epigenetic mechanisms are implicated in cardiovascular and metabolic diseases, including diabetes, obesity, atherosclerosis, heart failure, hypertension, and kidney diseases.
  • Chronic diseases involve DNA damage and repair processes; accumulated damage and impaired repair can lead to epigenetic alterations contributing to disease onset and progression.

Purpose of the Study:

  • To review the role of DNA damage repair systems and epigenetic modulators in disease states.
  • To explore potential epigenetic therapy targets for kidney diseases.

Main Methods:

  • Focus on DNA damage repair mechanisms and epigenetic modulators in disease contexts.
  • Review of existing literature on transcription factor KLF4 and renin-angiotensin system (RAS) blockers in kidney disease.

Main Results:

  • Therapeutic effects of transcription factor KLF4 in kidney glomerular epithelial cells (podocytes) on proteinuric kidney diseases were demonstrated through epigenetic mechanisms.
  • Renin-angiotensin system (RAS) blockers were found to partially restore epigenetic changes via KLF4, suggesting RAS activation contributes to epigenetic alterations in disease.

Conclusions:

  • Transcription factors, like KLF4, represent potential targets for selective epigenetic therapy.
  • Elucidating the precise mechanisms of RAS-induced epigenetic changes may lead to novel therapeutic targets for kidney diseases.

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