Objective: To investigate whether apoptosis of human lens epithelial cells (HLEC) can be induced by inhibition of bcl-2 shRNA.
Methods: It was an experimental study. Two pairs of oligonucleotides were synthesized and inserted into plasmid PGCsi to generate shRNA eukaryotic expression vectors, named P1 and P2. At 48 hours after transfection in HLEC (SRA01/04) with Lipofectamine 2000, the whole cell protein was extracted and detected by Western blot. The bcl-2 mRNA level was detected by real-time PCR. The percentage of HLECs undergoing apoptosis was measured by Annexin V-PI staining. The activity of caspase-3 was analyzed by Western blotting.
Results: The shRNA eukaryotic expression vectors were constructed successfully. At 48 hours after transfection, the rate of transfection of P1 and P2 was about 44.1% and 47.2% respectively. The protein and mRNA level of bcl-2 was 0.435 and 0.476, greatly downregulated (F = 1672.4, P < 0.05). The percentage of HLEC undergoing apoptosis was 42.3% and 45.4%, greatly improved (F = 1756.2, P < 0.05). The activity of caspase-3 was greatly improved.
Conclusion: P1 and P2 can both down-regulate the expression of bcl-2, and induce the apoptosis of HLEC.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Background: Cancer cells display oxidative metabolic dysregulation to fulfill their bioenergy requirements. Specifically, efforts were made to regulate the metabolite succinate and its negative effects as an inducer for neoplasm invasion and metastasis.
Methods: Binding affinity of naringenin (NAR) to mitochondria complex II (CΙΙ) subunits, sirtuin3 (SIRT3), tumor necrosis factor associate protein 1(TRAP1), and succinate receptor (SUCNR1) was studied by molecular docking.
ZNF667 alleviates the inflammatory damage in intervertebral disc degeneration via inhibiting NF-κB signaling pathway.
Zhong Nan Da Xue Xue Bao Yi Xue Ban
October 2024
Department of Spine Surgery, Second Xiangya Hospital, Central South University, Changsha 410011, China.
Objectives: With the aging population, the incidence of intervertebral disc degeneration (IDD) is increasing every year. The pathogenesis of IDD is complex, and there are currently no effective treatment options. This study aims to investigate the specific function and underlying mechanism of zinc finger protein 667 (ZNF667) in the inflammatory damage of nucleus pulposus cells in IDD.
View Article and Find Full Text PDFInhibition of N6-methyladenosine methylation of ASC by berberine ameliorates pyroptosis of renal tubular epithelial cells in acute kidney injury.
Cell Signal
March 2025
Traditional Chinese Medicine Integrated Department of Nephrology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, PR China; Research Institute of Nephrology, Zhengzhou University, Zhengzhou 450052, PR China; Henan Province Research Center for Kidney Disease, Zhengzhou 450052, PR China; Key Laboratory of Precision Diagnosis and Treatment for Chronic Kidney Disease in Henan Province, Zhengzhou 450052, PR China; Tianjian Laboratory of Advanced Biomedical Sciences, Academy of Medical Sciences, Zhengzhou University Zhengzhou, Henan, China; Innovation Center of Basic Research for Metabolic-Associated Fatty Liver Disease, Ministry of Education of, China. Electronic address:
Acute kidney injury (AKI) lacks a definitive therapeutic approach beyond supportive care. One significant pathological mechanism involves the regulated death of tubular epithelial cells; however, the regulatory mechanisms underlying this cell death pathway require further investigation. The N6-methyladenosine (m6A) modification, recognized as the most prevalent modification in eukaryotes, plays a critical role in the regulatory processes associated with AKI.
View Article and Find Full Text PDF5-Methoxytryptophan Attenuates Oxidative Stress-Induced Downregulation of PINK1 and Mitigates Mitochondrial Damage and Apoptosis in Cardiac Myocytes.
Free Radic Biol Med
March 2025
School of Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan. Electronic address:
Mitochondrial dysfunction is a hallmark in the pathogenesis of various cardiovascular diseases. 5-Methoxytryptophan (5-MTP), an intrinsic amino acid metabolite, exerts cardioprotective effects potentially through the preservation of mitochondrial integrity. This study investigates the mechanisms and contexts in which 5-MTP positively impacts mitochondrial function using cultured human ventricular cardiomyocytes (HCMs) and HL-1 cardiac cells subjected to oxidative stress (OS).
View Article and Find Full Text PDFSynthesis and evaluation of demethylzeylasteral derivatives as potential anticancer therapies for colon cancer: In vitro antiproliferation, cell cycle arrest analyses, network pharmacology investigations, and molecular docking studies.
Fitoterapia
March 2025
College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Department of Marine Biopharmacology, College of Food Science and Technology, Shanghai Ocean University, Shanghai 201306, China; Marine Biomedical Science and Technology Innovation Platform of Lin-gang Special Area, Shanghai 201306, China. Electronic address:
A series of novel demethylzeylasteral derivatives 1-3 was synthesized by performing modifications on the aldehyde groups at the C-4 positions. Subsequently, the anti - proliferative activities of derivatives 1-3 was evaluated using three human cancer cell line models (HCT116, SKOV3, and HepG2) and the CCK - 8 assay. Compared with demethylzeylasteral, derivative 2 exhibited a remarkable inhibitory effect on HCT116 (4.
View Article and Find Full Text PDFWant 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!