SF Prep Notes

JNCASR study identifies the miR-7a–Klf4 axis as a potential therapeutic target in Alzheimer's disease

Researchers at JNCASR found a significant increase in microRNA miR-7a, which targets the protein Klf4, in Alzheimer's disease, identifying a new therapeutic target, DST said on 5 August 2025.

Summary

Researchers from the Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR), an autonomous institute of the Department of Science and Technology, have identified a novel therapeutic target for Alzheimer's disease, DST said on 5 August 2025. Using a double transgenic Alzheimer's mouse model, Madhu Ramesh and Prof. Thimmaiah Govindaraju found a significant increase in miR-7a, which targets Klf4, a master regulator of gene expression. The miR-7a–Klf4 axis regulates neuroinflammation and the iron-mediated neuronal cell death mechanism called ferroptosis. The study was published in NAR Molecular Medicine.

Key facts

Institute
JNCASR (DST autonomous institute)
Researchers
Madhu Ramesh, Prof. Thimmaiah Govindaraju
Finding
Increase in miR-7a, which targets Klf4
Pathways
Neuroinflammation and ferroptosis
Journal
NAR Molecular Medicine

Practice MCQs 1 questions

Q1 Advanced

A JNCASR study reported in August 2025 identified which microRNA–protein axis as regulating neuroinflammation and ferroptosis in Alzheimer's disease?

Show answer

Correct answer: C — miR-7a–Klf4

The researchers found a significant increase in miR-7a, which targets Klf4; the miR-7a–Klf4 axis regulates neuroinflammation and ferroptosis.

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