Protosappanin-A (PrA) and oleanolic acid (OA), which are important effective ingredients isolated from Caesalpinia sappan L., exhibit therapeutic potential in multiple diseases. This study focused on exploring the mechanisms of PrA and OA function in podocyte injury. An in vitro model of podocyte injury was induced by the sC5b-9 complex and assays such as cell viability, apoptosis, immunofluorescence, quantitative real-time polymerase chain reaction, and western blot were performed to further investigate the effects and mechanisms of PrA and OA in podocyte injury. The models of podocyte injury were verified to be successful as seen through significantly decreased levels of nephrin, podocin, and CD2AP and increased level of desmin. The sC5b-9-induced podocyte apoptosis was inhibited in injured podocytes treated with PrA and OA, accompanied by increased protein levels of nephrin, podocin, CD2AP, and Bcl2 and decreased levels of desmin and Bax. The p-AKT/p-mTOR levels were also reduced by treatment of PrA and OA while AKT/mTOR was unaltered. Further, the effects of PrA and OA on injured podocytes were similar to that of LY294002 (a PI3K-AKT inhibitor). PrA and OA were also seen to inhibit podocyte apoptosis and p-AKT/p-mTOR levels induced by IGF-1 (a PI3K-AKT activator). Our data demonstrate that PrA and OA can protect podocytes from injury or apoptosis, which may occur through inhibition of the abnormal activation of AKT-mTOR signaling.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6973098 | PMC |
| http://dx.doi.org/10.1002/cbin.11218 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Formula alleviates diabetic podocyte injury by regulating miR-21a-5p/FoxO1/PINK1-mediated mitochondrial autophagy.
Nan Fang Yi Ke Da Xue Xue Bao
January 2025
ZHANG Zhongjing School of Chinese Medicine, Rheumatology and Immunology, Nanyang Traditional Chinese Medicine Hospital, Nanyang 473004, China.
Objectives: To investigate the protective effect of Formula (YYHT) against high glucose-induced injury in mouse renal podocytes (MPC5 cells) and the possible mechanism.
Methods: Adult Wistar rats were treated with 19, 38, and 76 g/kg YYHT or saline via gavage for 7 days to prepare YYHT-medicated or blank sera for treatment of MPC5 cells cultured in high glucose (30 mmol/L) prior to transfection with a miR-21a-5p inhibitor or a miR-21a-5p mimic. The changes in miR-21a-5p expressions and the mRNA levels of FoxO1, PINK1, and Parkin in the treated cells were detected with qRT-PCR, and the protein levels of nephrin, podocin, FoxO1, PINK1, and Parkin were detected with Western blotting.
Lebanese Cannabis sativa L. extract protects from cisplatin-induced nephrotoxicity in mice by inhibiting podocytes apoptosis.
J Cannabis Res
January 2025
School of Pharmacy, Pharmaceutical Sciences Department, Lebanese American University, Byblos, Lebanon.
Background: Cisplatin is an anti-cancer drug used to treat a plethora of solid tumors. However, it is associated with dose dependent nephrotoxicity limiting its use as anticancer agent.
Objective: The current study aimed to investigate the nephroprotective effect of native Lebanese Cannabis sativa in both in vitro and in vivo mice model of cisplatin-induced nephrotoxicity.
Characterization of FAM114A1: A Novel Podocyte Cytoskeleton-Associated Protein Upregulated in Glomerular Injury.
Am J Physiol Renal Physiol
January 2025
Department of Medicine, Boston Medical Center and Department of Medicine, Boston University. Chobanian & Avedisian School of Medicine.
Transcriptomic analysis of microdissected human glomeruli has suggested novel molecular signatures associated with MN by revealing several genes differentially upregulated in MN compared to other glomerular diseases. We focused on a novel protein, Family with sequence similarity 114 member A1 (FAM114A1) that was identified as the top classifier gene in the dataset. To determine the localization of FAM114A1 within glomeruli, we performed immunofluorescence (IF) staining on normal human kidney specimens.
View Article and Find Full Text PDFMinimal change disease in treatment-naïve hepatitis C virus infection: A case report and literature review.
Clin Nephrol Case Stud
January 2025
Department of Medicine.
Minimal change disease (MCD) accounts for 10 - 15% of idiopathic nephrotic syndromes in adults. Chronic hepatitis C virus (HCV) infection is rarely ascribed as a cause of MCD and was previously associated with interferon-based therapy. MCD in treatment-naïve chronic HCV infection is extremely rare, with only 3 cases reported in the literature.
View Article and Find Full Text PDFGenetic and clinical spectrum of steroid-resistant nephrotic syndrome with nuclear pore gene mutation.
Pediatr Nephrol
January 2025
Department of Nephrology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Center), Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China.
Background: Steroid-resistant nephrotic syndrome (SRNS) is insensitive to steroid therapy and overwhelmingly progresses to kidney failure (KF), the known pathogenic genes of which include key subunits of the nuclear pore complex (NPC), a less-recognized contributor to glomerular podocyte injury.
Methods: After analyzing their clinical characterizations and obtaining parental consent, whole-exome sequencing (WES) was performed on patients with SRNS. Several nucleoporin (NUP) biallelic pathogenic variants were identified and further analyzed by cDNA-PCR sequencing from white cells of peripheral blood, minigene assay, immunohistochemical (IHC) staining, and electron microscopy (EM) ultrastructure observation of kidney biopsy, as well as multiple in silico prediction tools, including 3D protein modeling.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!