ReferenceID 5595
Homocysteine induces podocyte apoptosis by regulating miR-1929-5p expression through c-Myc, DNMT1 and EZH2
Mol Oncol
Chronic kidney disease (CKD) is a common and complex disease in kidneys which has been associated with an increased risk of renal cell carcinoma. Elevated homocysteine (Hcy) levels are known to influence the development
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Record Fields
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- Reference Id
- 5595
- Evidence Id
- 22185
- Core Evidence Id
- 22185
- Source Reference Id
- 4403
- Herb2 Reference Id
- HBREF005200
- Subject Paper Key
- HBIN033053_34057794
- Pubmed Id
- 34057794
- Doi
- 10.1002/1878-0261.13032
- Paper Title
- Homocysteine induces podocyte apoptosis by regulating miR-1929-5p expression through c-Myc, DNMT1 and EZH2
- Paper Abstract
- Chronic kidney disease (CKD) is a common and complex disease in kidneys which has been associated with an increased risk of renal cell carcinoma. Elevated homocysteine (Hcy) levels are known to influence the development and progression of CKD by regulating podocyte injury and apoptosis. To investigate the molecular mechanisms triggered in podocytes by Hcy, we used cbs+/- mice and observed that higher Hcy levels increased the apoptosis rate of podocytes with accompanying glomerular damage. Hcy-induced podocyte injury and apoptosis in cbs+/- mice was regulated by inhibition of microRNA (miR)-1929-5p expression. Overexpression of miR-1929-5p in podocytes inhibited apoptosis by upregulating Bcl-2. Furthermore, the expression of miR-1929-5p was regulated by epigenetic modifications of its promoter. Hcy upregulated DNA methyltransferase 1 (DNMT1) and enhancer of zeste homolog 2 (EZH2) levels, resulting in increased DNA methylation and H3K27me3 levels on the miR-1929-5p promoter. Additionally, we observed that c-Myc recruited DNMT1 and EZH2 to the miR-1929-5p promoter and suppressed the expression of miR-1929-5p. In summary, we demonstrated that Hcy promotes podocyte apoptosis through the regulation of the epigenetic modifiers DNMT1 and EZH2, which are recruited by c-Myc to the promoter of miR-1929-5p to silence miR-1929-5p expression.
- Journal
- Mol Oncol
- Publish Year
- 2021
- Experiment Subject
- mouse
- Experiment Type
- Animal Experiment
- Phenotype Related
- Podocyte Injury; Chronic Kidney Disease; Renal Cell Carcinoma; Hcy-induced Podocyte Injury
- Paper Title Cn
- Paper Title En
- Homocysteine induces podocyte apoptosis by regulating miR-1929-5p expression through c-Myc, DNMT1 and EZH2
- Bilingual Status
- semi_complete