Related Experiment Video
Updated: Jun 15, 2025

Mechanism of Kemeng Fang's Inhibition of Podocyte Apoptosis in Rats with Membranous Nephropathy through the PI3K/AKT Signaling Pathway
Published on: August 23, 2024
ALKBH5-Mediated m6A Modification Drives Apoptosis in Renal Tubular Epithelial Cells by Negatively Regulating MUC1
Wenwei Chen1,2,3, Changyi Liu1,2,3, Yanfeng He1,2,3
1Department of Urology, Urology Research Institute, The First Affiliated Hospital, Fujian Medical University, Chazhong Road 20, Taijiang District, Fuzhou, 350005, Fujian, People's Republic of China.
Abstract:
Dysregulation of renal tubular epithelial cell (RTEC) apoptosis is one of the critical steps underlying the occurrence and development of nephrolithiasis. Although N6-methyladenosine (m6A) modification has been extensively studied and associated with various pathologic processes, research on its specific role in RTEC injury and apoptosis remains limited. In this study, we found that overexpression of ALKBH5 reduced the level of m6A modification in RTEC cells and notably promoted RTEC apoptosis. Further mechanism studies revealed that ALKBH5 mainly decreased the m6A level on the mRNA of Mucin 1 (MUC1) gene in RTECs. Moreover, ALKBH5 impaired the stability of MUC1 mRNA in RTECs, leading to attenuated expression of MUC1. Finally, we determined that the ALKBH5-MUC1 axis primarily facilitated RTEC apoptosis by regulating the PI3K/Akt signaling pathway. This study revealed the critical role of the ALKBH5-MUC1-PI3K/Akt regulatory system in RTEC apoptosis and provided new therapeutic targets for treating nephrolithiasis.
Insights
Overexpression of ALKBH5 promotes renal tubular epithelial cell apoptosis by reducing m6A modification, impacting Mucin 1 (MUC1) stability and the PI3K/Akt pathway. This reveals a new therapeutic target for kidney stones.
Area of Science:
- Cell Biology
- Molecular Biology
- Nephrology
Background:
- Renal tubular epithelial cell (RTEC) apoptosis is crucial in nephrolithiasis pathogenesis.
- N6-methyladenosine (m6A) modification's role in RTEC injury and apoptosis is under-investigated.
Purpose of the Study:
- To investigate the role of ALKBH5 in RTEC apoptosis.
- To elucidate the molecular mechanisms underlying ALKBH5-mediated RTEC apoptosis.
Main Methods:
- Overexpression of ALKBH5 in RTEC cells.
- Measurement of m6A modification levels.
- Analysis of Mucin 1 (MUC1) mRNA stability and expression.
- Investigation of the PI3K/Akt signaling pathway.
Main Results:
- ALKBH5 overexpression reduced m6A levels in RTEC cells, promoting apoptosis.
- ALKBH5 decreased m6A modification on MUC1 mRNA, impairing its stability and expression.
- The ALKBH5-MUC1 axis promoted RTEC apoptosis via the PI3K/Akt pathway.
Conclusions:
- The ALKBH5-MUC1-PI3K/Akt regulatory system plays a critical role in RTEC apoptosis.
- This pathway presents potential therapeutic targets for nephrolithiasis treatment.
More Related Videos
Related Concept Videos
Abnormal Proliferation
Receptor Downregulation in MVBs
The EGFR can initiate signaling pathways that lead to cell proliferation, migration, and differentiation. Overexpression of EGFR stimulates cells to proliferate. Excessive EGFR...
PI3K/mTOR/AKT Signaling Pathway
mTOR Signaling and Cancer Progression
The mTOR pathway or the...
Covalently Linked Protein Regulators
These groups modify specific amino acids in a protein....
The Intrinsic Apoptotic Pathway

