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Hou X, Cui B, Qiu A, Liu N, Zhuang S. Pharmacological inhibition of the mixed lineage leukemia 1-menin interaction aggravates acute kidney injury induced by folic acid and ischemia-reperfusion in mice. Am J Physiol Renal Physiol 2023; 325:F669-F680. [PMID: 37733875 DOI: 10.1152/ajprenal.00287.2022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 08/16/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023] Open
Abstract
Mixed lineage leukemia 1 (MLL1) is a methyltransferase that induces histone H3 lysine 4 trimethylation (H3K4me3) and partially exerts its untoward functional effects by interacting with multiple subunits including menin and WD repeat-containing protein 5 (WDR5). In this study, we investigated the role and mechanisms of MLL1 in murine models of acute kidney injury induced by folic acid (FA) and ischemia-reperfusion. Injury to the kidney elevated the expression of MLL1, menin, WDR5, and H3K4Me3, which was accompanied by increased serum creatinine and blood urea nitrogen, renal tubular injury, and apoptosis. Pharmacological inhibition of MLL1 activity with MI503 to disrupt the interaction between MLL1 with menin further increased serum creatinine and blood urea nitrogen levels, enhanced expression of neutrophil gelatinase-associated lipocalin and kidney injury molecule-1, and induced more apoptosis in the kidney following FA and ischemia-reperfusion injury. In contrast, MI503 treatment decreased the expression of vimentin and proliferating cell nuclear antigens. Similarly, treatment with MM102 to disrupt the interaction between MLL1 and WDR5 also worsened renal dysfunction, aggravated tubular cell injury, increased apoptosis, and inhibited cellular dedifferentiation and proliferation in mice following FA injection. Moreover, MI503 inhibited FA-induced phosphorylation of epidermal growth factor receptor, signal transducer and activator of transcription 3, and extracellular signal-regulated kinase-1/2 in injured kidneys. Collectively, these data suggest that MLL1 contributes to renal protection and functional recovery and promotes renal regeneration through a mechanism associated with activation of the epidermal growth factor receptor signaling pathway.NEW & NOTEWORTHY Mixed lineage leukemia 1 (MLL1) is a methyltransferase that induces histone H3 lysine 4 trimethylation and exerts its functional roles by interacting with multiple subunits. In this study, we demonstrated that inhibition of MLL1 activity by MI503 or MM102 aggravated renal injury and apoptosis and suppressed renal tubular cell dedifferentiation and proliferation, suggesting that MLL1 activation during acute kidney injury acts as an intrinsic protective mechanism to mediate renal tubular cell survival and regeneration.
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Affiliation(s)
- Xiying Hou
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Binbin Cui
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Andong Qiu
- School of Life Science and Technology, Advanced Institute of Translational Medicine, Tongji University, Shanghai, China
| | - Na Liu
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shougang Zhuang
- Department of Nephrology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
- Department of Medicine, Rhode Island Hospital and Alpert Medical School, Brown University, Providence, Rhode Island, United States
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Sedik AA, Hassan A, Salama A. Synergistic effect of arginine and Lactobacillus plantarum against potassium dichromate induced-acute liver and kidney injury in rats: Role of iNOS and TLR4/NF-κB signaling pathways. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2023; 26:941-952. [PMID: 37427328 PMCID: PMC10329243 DOI: 10.22038/ijbms.2023.68855.15108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Accepted: 04/29/2023] [Indexed: 07/11/2023]
Abstract
Objectives Our study was conducted to evaluate the synergistic effect of arginine (ARG) and Lactobacillus plantarum against potassium dichromate (K2Cr2O7) induced-acute hepatic and kidney injury. Materials and Methods Fifty male Wistar rats were divided into five groups. The control group received distilled water. The potassium dichromate group (PDC) received a single dose of PDC (20 mg/kg; SC). The arginine group (ARG) and Lactobacillus plantarum group received either daily doses of ARG (100 mg/kg, PO) or L. plantarum (109 CFU/ml, PO) for 14 days. The combination group (ARG+L. plantarum) received daily doses of ARG (100 mg/kg) with L. plantarum (109 CFU/ml), orally for 14 days, before induction of acute liver and kidney injury. Forty eight hours after the last dose of PDC, serum biochemical indices, oxidative stress biomarkers, pro-inflammatory cytokines, histopathological and immunohistochemical analysis were evaluated. Results Combining ARG with L. plantarum restored the levels of serum hepatic & kidney enzymes, hepatic & renal oxidative stress biomarkers, and TLR 4/ NF-κB signaling pathway. Furthermore, they succeeded in decreasing the expression of iNOS and ameliorate the hepatic and renal markers of apoptosis: Caspase-3, Bax, and Bcl2. Conclusion This study depicts that combining ARG with L. plantarum exerted a new bacteriotherapy against hepatic and renal injury caused by PDC.
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Affiliation(s)
- Ahmed A. Sedik
- Pharmacology Department, Medical Research and Clinical Studies Institute, National Research Centre, 12622, Egypt
| | - Azza Hassan
- Pathology Department, Faculty of Veterinary Medicine, Cairo University
| | - Abeer Salama
- Pharmacology Department, Medical Research and Clinical Studies Institute, National Research Centre, 12622, Egypt
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Zhao J, Fu H, Zhang Y, Li M, Wang D, Zhao D, Zhang J, Wang C. Protective effects of Lactobacillus reuteri SJ-47 strain exopolysaccharides on human skin fibroblasts damaged by UVA radiation. BIORESOUR BIOPROCESS 2022; 9:127. [PMID: 38647814 PMCID: PMC10992028 DOI: 10.1186/s40643-022-00617-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Accepted: 12/02/2022] [Indexed: 12/23/2022] Open
Abstract
Ultraviolet rays in sunlight can cause skin damage and premature aging. This study demonstrates that Lactobacillus reuteri SJ-47 strain exopolysaccharides (EPS) protect human skin fibroblasts (HSF) under UVA radiation. During the course of the experiments, we investigate the oxidative stress protection and antiaging effects of exopolysaccharides on HSF at the biochemical, cellular, and molecular levels. The results show that EPS can increase the antioxidant capacity of cells, decrease the amount of reactive-oxygen species (ROS) and malondialdehyde (MDA), while improve the expression of antioxidant enzymes. At the same time, EPS can increase collagen content, which can effectively regulate the expression of genes in the senescence and apoptosis pathways, and delay skin photoaging caused by UVA irradiation.
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Affiliation(s)
- Jingsha Zhao
- Beijing Key Laboratory of Plant Resource Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, People's Republic of China
- Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing, People's Republic of China
| | - Hao Fu
- Beijing Key Laboratory of Plant Resource Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, People's Republic of China
- Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing, People's Republic of China
| | - Yongtao Zhang
- Beijing Key Laboratory of Plant Resource Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, People's Republic of China
- Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing, People's Republic of China
| | - Meng Li
- Beijing Key Laboratory of Plant Resource Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, People's Republic of China.
- Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing, People's Republic of China.
| | - Dongdong Wang
- Beijing Key Laboratory of Plant Resource Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, People's Republic of China
- Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing, People's Republic of China
| | - Dan Zhao
- Beijing Key Laboratory of Plant Resource Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, People's Republic of China
- Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing, People's Republic of China
| | - Jiachan Zhang
- Beijing Key Laboratory of Plant Resource Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, People's Republic of China
- Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing, People's Republic of China
| | - Changtao Wang
- Beijing Key Laboratory of Plant Resource Research and Development, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, People's Republic of China
- Institute of Cosmetic Regulatory Science, Beijing Technology and Business University, Beijing, People's Republic of China
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