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Saleh MA, Shaaban AA, Talaat IM, Elmougy A, Adra SF, Ahmad F, Qaisar R, Elmoselhi AB, Abu-Gharbieh E, El-Huneidi W, Eladl MA, Shehatou G, Kafl HE. RhoA/ROCK inhibition attenuates endothelin-1-induced elevated glomerular permeability to albumin, inflammation, and fibrosis. Life Sci 2023; 323:121687. [PMID: 37030613 DOI: 10.1016/j.lfs.2023.121687] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/25/2023] [Accepted: 04/05/2023] [Indexed: 04/10/2023]
Abstract
Endothelin-1 (ET-1) contributes to the development of kidney diseases. However, the underlying molecular mechanism is largely undefined. Here we sought to investigate the potential role of ET-1 receptors, ETA and ETB in the regulation of increased glomerular permeability and underlying signaling pathways post-ET-1 infusion. Male Sprague-Dawley rats were infused with ET-1 (2 pmol/kg per minute, i.v.) for four weeks, and the effect on glomerular permeability to albumin (Palb) and albuminuria was measured. The selective ROCK-1/2 inhibitor, Y-27632, was administered to a separate group of rats to determine its effect on ET-1-induced Palb and albuminuria. The role of ETA and ETB receptors in regulating RhoA/ROCK activity was determined by incubating isolated glomeruli from normal rats with ET-1 and with selective ETA and ETB receptor antagonists. ET-1 infusion for four weeks significantly elevated Palb and albuminuria. Y-27632 significantly reduced the elevation of Palb and albuminuria. The activities of both RhoA and ROCK-1/2 were increased by ET-1 infusion. Selective ETB receptor antagonism had no effect on the elevated activity of both RhoA and ROCK-1/2 enzymes. Selective ETA receptor and combined ETA/ETB receptors blockade restored the activity of RhoA and ROCK-1/2 to normal levels. In addition, chronic ET-1 infusion increased the levels of glomerular inflammatory and fibrotic markers. These effects were all attenuated in rats following ROCK-1/2 inhibition. These observations suggest that ET-1 contributes to increased albuminuria, inflammation, and fibrosis by modulating the activity of the ETA-RhoA/ROCK-1/2 pathway. Selective ETA receptor blockade may represent a potential therapeutic strategy to limit glomerular injury and albuminuria in kidney disease.
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Affiliation(s)
- Mohamed A Saleh
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates; Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates; Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
| | - Ahmed A Shaaban
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt; Department of Pharmacology and Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa City 35712, Egypt
| | - Iman M Talaat
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates; Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates; Pathology Department, Faculty of Medicine, Alexandria University, Alexandria 21526, Egypt
| | - Atef Elmougy
- Pediatric Nephrology Unit, Mansoura University Children's Hospital, Mansoura University, Mansoura 35516, Egypt
| | - Saryia F Adra
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Firdos Ahmad
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates; Department of Biomedical Sciences, College of Health Sciences, Abu Dhabi University, Abu Dhabi 59911, United Arab Emirates
| | - Rizwan Qaisar
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Adel B Elmoselhi
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Eman Abu-Gharbieh
- Department of Clinical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates; Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Waseem El-Huneidi
- Sharjah Institute for Medical Research, University of Sharjah, Sharjah 27272, United Arab Emirates; Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - Mohamed A Eladl
- Department of Basic Medical Sciences, College of Medicine, University of Sharjah, Sharjah 27272, United Arab Emirates
| | - George Shehatou
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt; Department of Pharmacology and Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa City 35712, Egypt
| | - Hoda E Kafl
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
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Shaaban AA, Zaghloul RA, Kafl HE, El-Kashef DH. Ameliorative effect of desloratadine against cisplatin-induced renal and testicular toxicity in rats: Attention to TLR4/NLRP3 inflammasome signaling pathway. Life Sci 2023; 316:121441. [PMID: 36709911 DOI: 10.1016/j.lfs.2023.121441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/11/2023] [Accepted: 01/22/2023] [Indexed: 01/27/2023]
Abstract
Cisplatin (CIS) is a potent anticancer drug that is used in the treatment of different types of cancer. Owing to its serious side effects, its clinical use is considerably limited. AIMS This study was mapped to investigate the potential effects of desloratadine (DES) against CIS-induced nephrotoxicity and testicular injury. MAIN METHODS DES (5 and 10 mg/kg) was orally administered for 10 days, and CIS was injected once (10 mg/kg, i.p.) in adult male rats on day 9 to induce both renal and testicular toxicity. KEY FINDINGS DES significantly attenuated CIS-induced alterations in histopathology and biomarkers. DES resulted in a significant reduction in serum levels of creatinine (Cr), urea, and blood urea nitrogen (BUN), in addition to a marked decrease in urinary levels of albumin and total protein. Additionally, DES efficiently reinstated the oxidative balance by preventing the elevation of malondialdehyde (MDA) and enhancing superoxide dismutase (SOD) activity, and increasing glutathione (GSH) levels. Moreover, DES produced a profound decrease in renal and testicular levels of nucleotide-binding domain-(NOD) like receptor 3 (NLRP3), interleukin (IL)-1β, and caspase-1 when compared to the CIS group. Furthermore, DES significantly decreased CIS-induced elevation in toll-like receptor 4 (TLR4), tumor necrosis factor-alpha (TNF-α), and nuclear factor-kappa B (NF-κB) levels in both renal and testicular tissues. SIGNIFICANCE DES can be used as adjuvant therapy with CIS in cancerous cases, pending further clinical studies.
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Affiliation(s)
- Ahmed A Shaaban
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt; Department of Pharmacology and Biochemistry, Faculty of Pharmacy, Delta University for Science and Technology, Gamasa 11152, Egypt
| | - Randa A Zaghloul
- Department of Biochemistry, Faculty of Pharmacy, Mansoura University, 35516, Egypt
| | - Hoda E Kafl
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt
| | - Dalia H El-Kashef
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt.
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Kafl HE, Elkashef HA. Effect of sodium orthovanadate on the urinary bladder rings isolated from normal and hyperglycemic rats. Pak J Pharm Sci 2006; 19:195-201. [PMID: 16935826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Effect of sodium orthovanadate on the urinary bladder rings isolated from normal and hyperglycemic rats was investigated. Vanadate concentrations of 0.1, 0.5 and 1 mM produced a concentration-dependant increase in isolated urinary bladder tension in both normal and hyperglycemic tissues. In normal urinary bladder rings, the response to increasing concentrations of vanadate were 12.8 +/- 0.6, 20.1 +/- 0.74 and 32.5 +/- 1.2 g tension /g tissue, respectively. Hyperglycemia significantly potentiated the response of bladder rings to vanadate. In hyperglycemic rats, the response of the urinary bladder to the same concentrations of vanadate were 21.3 +/- 0.78, 30 +/- 1.1 and 50.5 +/- 1.6 g tension/g tissue, respectively. The responses were reversible and further contractions could be elicited at 30 minutes intervals. The contractions of normal urinary bladder rings to vanadate were not altered by pretreatment with atropine or L-NAME. Melatonin, nifedipine as well as indomethacin significantly reduced the response of normal and hyperglycemic bladder rings to vanadate. On the other hand, ascorbic acid significantly enhanced the response of these rings to vanadate. Hydrogen peroxide (H(2)O(2))-induced increase in the urinary bladder tension was very similar and comparable to contractions induced by vanadate. Similarly, H(2)O(2)-induced contraction in the urinary bladder rings was significantly reduced after incubation of the bladder rings with melatonin, indomethacin or nifedipine and the response was not altered by ascorbic acid. The results of the present study indicate that vanadate produced marked contraction in the normal urinary bladder rings and this contraction was significantly enhanced by hyperglycemia. The present data shows also that the contractile effect of vanadate on isolated urinary bladder rings is partially dependent on extracellular calcium and generation of free radicals. The present results suggested a key role of H(2)O(2) in mediating the contraction of urinary bladder rings induced by vanadate.
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Affiliation(s)
- Hoda E Kafl
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Mansoura University, Mansoura, 35516, Egypt
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