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Li Z, Xing J. Potential therapeutic applications of circular RNA in acute kidney injury. Biomed Pharmacother 2024; 174:116502. [PMID: 38569273 DOI: 10.1016/j.biopha.2024.116502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 03/12/2024] [Accepted: 03/27/2024] [Indexed: 04/05/2024] Open
Abstract
Acute kidney injury (AKI) is a common clinical syndrome characterized by a rapid deterioration in renal function, manifested by a significant increase in creatinine and a sharp decrease in urine output. The incidence of morbidity and mortality associated with AKI is on the rise, with most patients progressing to chronic kidney disease or end-stage renal disease. Treatment options for patients with AKI remain limited. Circular RNA (circRNA) is a wide and diverse class of non-coding RNAs that are present in a variety of organisms and are involved in gene expression regulation. Studies have shown that circRNA acts as a competing RNA, is involved in disease occurrence and development, and has potential as a disease diagnostic and prognostic marker. CircRNA is involved in the regulation of important biological processes, including apoptosis, oxidative stress, and inflammation. This study reviews the current status and progress of circRNA research in the context of AKI.
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Affiliation(s)
- Zheng Li
- Department of Emergency Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China
| | - Jihong Xing
- Department of Emergency Medicine, The First Hospital of Jilin University, Changchun, Jilin 130021, China.
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2
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Casanova AG, Fuentes-Calvo I, Hernández-Sánchez MT, Quintero M, Toral P, Caballero MT, Martínez-Salgado C, Morales AI, Layton AT, Eleno N, López-Hernández FJ. The furosemide stress test and computational modeling identify renal damage sites associated with predisposition to acute kidney injury in rats. Transl Res 2021; 231:76-91. [PMID: 33253980 DOI: 10.1016/j.trsl.2020.11.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 11/16/2020] [Accepted: 11/19/2020] [Indexed: 12/29/2022]
Abstract
Acute kidney injury (AKI) diagnosis relies on plasma creatinine concentration (Crpl), a relatively insensitive, surrogate biomarker of glomerular filtration rate that increases only after significant damage befalls. However, damage in different renal structures may occur without increments in Crpl, a condition known as subclinical AKI. Thus, detection of alterations in other aspects of renal function different from glomerular filtration rate must be included in an integral diagnosis of AKI. With this aim, we adapted to and validated in rats (for preclinical research) the furosemide stress test (FST), a tubular function test hitherto performed only in humans. We also tested its sensitivity in detecting subclinical tubular alterations. In particular, we predisposed rats to AKI with 3 mg/kg cisplatin and subsequently subjected them to a triggering insult (ie, 50 mg/kg/d gentamicin for 6 days) that had no effect on nonpredisposed animals but caused an overt AKI in predisposed rats. The FST was performed immediately before adding the triggering insult. Predisposed animals showed a reduced response to the FST (namely, reduced furosemide-induced diuresis and K+ excretion), whereas nonpredisposed animals showed no alteration, compared to the controls. Computational modeling of epithelial transport of solutes and water along the nephrons applied to experimental data suggested that proximal tubule transport was only minimally reduced, the sodium-chloride symporter was upregulated by 50%, and the renal outer medullary potassium channel was downregulated by 85% in predisposed animals. In conclusion, serial coupling of the FST and computational modeling may be used to detect and localize subclinical tubular alterations.
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Affiliation(s)
- Alfredo G Casanova
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Fundación Instituto de Estudios de Ciencias de la Salud de Castilla y León (IECSCYL), Soria, Spain; Department of Physiology and Pharmacology, University of Salamanca (USAL), Salamanca, Spain; Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain, National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain
| | - Isabel Fuentes-Calvo
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Department of Physiology and Pharmacology, University of Salamanca (USAL), Salamanca, Spain; Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain, National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain
| | - María T Hernández-Sánchez
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Fundación Instituto de Estudios de Ciencias de la Salud de Castilla y León (IECSCYL), Soria, Spain; Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain, National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain
| | - Miguel Quintero
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain, National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain
| | - Paula Toral
- Department of Physiology and Pharmacology, University of Salamanca (USAL), Salamanca, Spain; Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain, National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain
| | - María T Caballero
- Department of Physiology and Pharmacology, University of Salamanca (USAL), Salamanca, Spain; Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain, National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain
| | - Carlos Martínez-Salgado
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Fundación Instituto de Estudios de Ciencias de la Salud de Castilla y León (IECSCYL), Soria, Spain; Department of Physiology and Pharmacology, University of Salamanca (USAL), Salamanca, Spain; Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain, National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain; Disease and Theranostic Modeling (DisMOD) International Consortium, Salamanca, Spain
| | - Ana I Morales
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Department of Physiology and Pharmacology, University of Salamanca (USAL), Salamanca, Spain; Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain, National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain; Group of Biomedical Research on Critical Care (BioCritic), Valladolid, Spain; Disease and Theranostic Modeling (DisMOD) International Consortium, Salamanca, Spain
| | - Anita T Layton
- Departments of Applied Mathematics and Biology, and Schools of Computer Science and Pharmacology, University of Waterloo, Waterloo, Ontario, Canada; Disease and Theranostic Modeling (DisMOD) International Consortium, Salamanca, Spain.
| | - Nélida Eleno
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Department of Physiology and Pharmacology, University of Salamanca (USAL), Salamanca, Spain; Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain, National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain.
| | - Francisco J López-Hernández
- Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain; Fundación Instituto de Estudios de Ciencias de la Salud de Castilla y León (IECSCYL), Soria, Spain; Department of Physiology and Pharmacology, University of Salamanca (USAL), Salamanca, Spain; Group of Translational Research on Renal and Cardiovascular Diseases (TRECARD), Salamanca, Spain, National Network for Kidney Research REDINREN, RD016/0009/0025, Instituto de Salud Carlos III, Madrid, Spain; Group of Biomedical Research on Critical Care (BioCritic), Valladolid, Spain; Disease and Theranostic Modeling (DisMOD) International Consortium, Salamanca, Spain.
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Gatti L, Cassinelli G, Zaffaroni N, Lanzi C, Perego P. New mechanisms for old drugs: Insights into DNA-unrelated effects of platinum compounds and drug resistance determinants. Drug Resist Updat 2015; 20:1-11. [PMID: 26003720 DOI: 10.1016/j.drup.2015.04.001] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Revised: 04/27/2015] [Accepted: 04/29/2015] [Indexed: 01/11/2023]
Abstract
Platinum drugs have been widely used for the treatment of several solid tumors. Although DNA has been recognized as the primary cellular target for these agents, there are unresolved issues concerning their effects and the molecular mechanisms underlying the antitumor efficacy. These cytotoxic agents interact with sub-cellular compartments other than the nucleus. Here, we review how such emerging phenomena contribute to the pharmacologic activity as well as to drug resistance phenotypes. DNA-unrelated effects of platinum drugs involve alterations at the plasma membrane and in endo-lysosomal compartments. A direct interaction with the mitochondria also appears to be implicated in drug-induced cell death. Moreover, the pioneering work of a few groups has shown that platinum drugs can act on the tumor microenvironment as well, and potentiate antitumor activity of the immune system. These poorly understood aspects of platinum drug activity sites may be harnessed to enhance their antitumor efficacy. A complete understanding of DNA-unrelated effects of platinum compounds might reveal new aspects of drug resistance allowing the implementation of the antitumor therapeutic efficacy of platinum compound-based regimens and minimization of their toxic side effects.
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Affiliation(s)
- Laura Gatti
- Molecular Pharmacology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42/via Venezian 1, 20133 Milan, Italy
| | - Giuliana Cassinelli
- Molecular Pharmacology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42/via Venezian 1, 20133 Milan, Italy
| | - Nadia Zaffaroni
- Molecular Pharmacology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42/via Venezian 1, 20133 Milan, Italy
| | - Cinzia Lanzi
- Molecular Pharmacology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42/via Venezian 1, 20133 Milan, Italy
| | - Paola Perego
- Molecular Pharmacology Unit, Department of Experimental Oncology and Molecular Medicine, Fondazione IRCCS Istituto Nazionale dei Tumori, Via Amadeo 42/via Venezian 1, 20133 Milan, Italy.
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Dietary supplementation of flaxseed oil ameliorates the effect of cisplatin on rat kidney. J Funct Foods 2013. [DOI: 10.1016/j.jff.2012.11.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
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5
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Sancho-Martínez SM, Prieto-García L, Prieto M, López-Novoa JM, López-Hernández FJ. Subcellular targets of cisplatin cytotoxicity: An integrated view. Pharmacol Ther 2012; 136:35-55. [DOI: 10.1016/j.pharmthera.2012.07.003] [Citation(s) in RCA: 128] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Accepted: 06/28/2012] [Indexed: 12/29/2022]
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Naqshbandi A, Khan MW, Rizwan S, Rehman SU, Khan F. Studies on the protective effect of dietary fish oil on cisplatin induced nephrotoxicity in rats. Food Chem Toxicol 2012; 50:265-73. [DOI: 10.1016/j.fct.2011.10.039] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2011] [Revised: 09/24/2011] [Accepted: 10/05/2011] [Indexed: 12/12/2022]
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Naqshbandi A, Khan W, Rizwan S, Khan F. Studies on the protective effect of flaxseed oil on cisplatin-induced hepatotoxicity. Hum Exp Toxicol 2012; 31:364-75. [DOI: 10.1177/0960327111432502] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Cisplatin (CP) is known as one of the most potent chemotherapeutic antitumor drugs. The tissue-specific toxicity of CP in the kidneys is well documented. However, at higher doses less common toxic effects such as hepatotoxicity may arise. Since CP remains one of the most effective antineoplastic drug used in chemotherapy, strategies to protect tissues against CP toxicity are of clinical interest. Recently, ω-3 polyunsaturated fatty acids (PUFAs) from certain plants/seeds notably flaxseed have shown numerous health benefits. In view of this, the present study investigates the protective effect of flaxseed oil (FXO) on CP-induced damage in liver. Rats were pre-fed normal diet and the diet rich in FXO for 10 days and then a single dose of CP (6 mg/kg body weight) was administered intraperitoneally while still on diet. Serum/urine parameters, enzymes of carbohydrate metabolism and oxidative stress were analyzed. CP caused perturbation of the antioxidant defense as reflected by the decrease in the activities of catalase, superoxide dismutase and glutathione peroxidase. Further the activities of various enzymes involved in glycolysis, tricarboxylic acid cycle, gluconeogenesis and hexose monophosphate shunt pathways were determined and were found to be differentially altered by CP treatment. However, these alterations were ameliorated in CP-treated rats fed on FXO. Present results show that dietary supplementation of FXO in CP-treated rats ameliorated CP-induced hepatotoxic and other deleterious effects due to its intrinsic biochemical/antioxidant properties.
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Affiliation(s)
- A Naqshbandi
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - W Khan
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - S Rizwan
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
| | - F Khan
- Department of Biochemistry, Faculty of Life Sciences, Aligarh Muslim University, Aligarh, Uttar Pradesh, India
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8
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Sunitinib improves chemotherapeutic efficacy and ameliorates cisplatin-induced nephrotoxicity in experimental animals. Cancer Chemother Pharmacol 2010; 67:1035-44. [DOI: 10.1007/s00280-010-1402-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2010] [Accepted: 07/08/2010] [Indexed: 12/31/2022]
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9
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Khan SA, Priyamvada S, Khan W, Khan S, Farooq N, Yusufi ANK. Studies on the protective effect of green tea against cisplatin induced nephrotoxicity. Pharmacol Res 2009; 60:382-91. [PMID: 19647078 DOI: 10.1016/j.phrs.2009.07.007] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2009] [Revised: 07/21/2009] [Accepted: 07/21/2009] [Indexed: 12/11/2022]
Abstract
Cisplatin (CP) an anticancer drug is known to induce nephrotoxicity, which limits its long-term clinical use. Green tea (GT), consumed since ancient times is known for its numerous health benefits. It has been shown to improve kidney functions in animal models of acute renal failure. The present study was undertaken to see whether GT can prevent CP-induced nephrotoxic and other deleterious effects. A nephrotoxic dose of CP was co-administered to control and GT-fed male Wistar rats every fifth day for 25 days. The effect of GT was determined on CP-induced alterations in various serum parameters and on enzymes of carbohydrate metabolism, brush border membrane, and antioxidant defense system in renal cortex and medulla. CP nephrotoxicity was recorded by increased serum creatinine and blood urea nitrogen. CP increased the activities of lactate dehydrogenase and acid phosphatase whereas, the activities of malate dehydrogenase, glucose-6-phosphatase, superoxide dismutase, catalase, and (32)Pi transport significantly decreased. GT consumption increased the activities of the enzymes of carbohydrate metabolism, brush border membrane, oxidative stress, and (32)Pi transport. GT ameliorated CP-induced nephrotoxic and other deleterious effects due to its intrinsic biochemical/antioxidant properties.
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Affiliation(s)
- Sara A Khan
- Department of Biochemistry, Aligarh Muslim University, U.P., India
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10
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Chen GD, Zhao HB. Effects of intense noise exposure on the outer hair cell plasma membrane fluidity. Hear Res 2007; 226:14-21. [PMID: 16870367 DOI: 10.1016/j.heares.2006.06.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2006] [Revised: 06/06/2006] [Accepted: 06/12/2006] [Indexed: 11/28/2022]
Abstract
Outer hair cells (OHCs) play an important role in cochlear amplification via their length changes (electromotility). A noise-induced cochlear amplification loss leading to a permanent threshold shift (PTS) was observed without a significant hair cell loss in rats [Chen, G.D., Liu, Y., 2005. Mechanisms of noise-induced hearing loss potentiation by hypoxia. Hear. Res. 200, 1-9.]. Since motor proteins are inserted in the OHC lateral membrane, any change in the OHC plasma membrane may result in a loss of OHC electromotility, leading to a loss of cochlear amplification. In this study, the lateral diffusion in the OHC plasma membrane was determined in vitro in guinea pigs by fluorescent recovery after photobleaching (FRAP) after an in vivo noise exposure. The lateral diffusion in the OHC plasma membrane demonstrated a length-dependence, which increased as OHC length increased. A reduction in the lateral diffusion was observed in those OHCs with lengths of 50-70 microm after exposure to an 8-kHz octave band noise at 110 dB SPL for 3h. This membrane fluidity change was associated with the selective PTS at frequencies around 8 kHz. The reduction of the lateral diffusion in the OHC lateral wall indicated that noise could impair the micromechanics of the OHC lateral wall and might consequently impair OHC electromotility to induce threshold shift.
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Affiliation(s)
- Guang-Di Chen
- Center for Hearing and Deafness, 137 Cary Hall, 3435 Main Street, SUNY at Buffalo, Buffalo, NY 14214, USA.
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Kalayda GV, Fakih S, Bertram H, Ludwig T, Oberleithner H, Krebs B, Reedijk J. Structure–toxicity relationships for different types of dinuclear platinum complexes. J Inorg Biochem 2006; 100:1332-8. [PMID: 16684566 DOI: 10.1016/j.jinorgbio.2006.03.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2005] [Revised: 01/25/2006] [Accepted: 03/17/2006] [Indexed: 10/24/2022]
Abstract
Nine structurally distinct dinuclear platinum complexes have been evaluated in a novel model system for the investigation of renal epithelial toxicity of platinum drugs. The results showed that these compounds are toxic when applied at the basolateral side of renal epithelia, whereas their toxic effects on the apical side are negligible. Such a difference in toxicity of the complexes has been found to result from their poor uptake through the apical membrane, as compared to the basolateral membrane. Toxicity of the compounds on the basolateral side varies depending on their structure. Structure-toxicity relationships for the group of complexes with rigid ligands and for the group of complexes with flexible ligands are discussed. Among the dinuclear complexes with rigid ligands, sterically hindered complexes are less toxic, due to their poor uptake and low reactivity towards glutathione. Within the group of complexes with flexible ligands, cis-configured isomers are more toxic than their trans-counterparts.
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Affiliation(s)
- Ganna V Kalayda
- Leiden Institute of Chemistry, Gorlaeus Laboratories, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands
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Ikari A, Nagatani Y, Tsukimoto M, Harada H, Miwa M, Takagi K. Sodium-dependent glucose transporter reduces peroxynitrite and cell injury caused by cisplatin in renal tubular epithelial cells. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2005; 1717:109-17. [PMID: 16288972 DOI: 10.1016/j.bbamem.2005.10.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2005] [Revised: 09/27/2005] [Accepted: 10/06/2005] [Indexed: 11/28/2022]
Abstract
Cisplatin causes nephropathy accompanied by two types of cell death, necrosis and apoptosis, according to its dosage. The mechanisms of necrosis are still unclear. In this study, we examined how high doses of cisplatin induce cell injury and whether a high affinity sodium-dependent glucose transporter (SGLT1) has a cytoprotective function in renal epithelial LLC-PK(1) cells. Cisplatin decreased in transepithelial electrical resistance (TER) and increased in the number of necrotic dead cells in a time dependent manner. Phloridzin, a potent SGLT1 inhibitor, enhanced both TER decrease and increase of necrotic dead cells caused by cisplatin. Cisplatin increased in the intracellular nitric oxide, superoxide anion and peroxynitrite productions. Phloridzin enhanced the peroxynitrite production caused by cisplatin. The intracellular diffusion of ZO-1 and TER decrease caused by cisplatin were inhibited by N-nitro-l-arginine methyl ester, a nitric oxide synthase inhibitor. Protein kinase C was not involved in the cisplatin-induced injury. 5,10,15,20-tetrakis-(4-sulfonatophenyl)-porphyrinato iron (III) and reduced glutathione, peroxynitrite scavengers, inhibited the cisplatin-induced ZO-1 diffusion, TER decrease, and increase of necrotic dead cells. These results suggest that peroxynitrite is a key mediator in the nephrotoxicity caused by high doses of cisplatin. SGLT1 endogenously carries out the cytoprotective function by the reduction of peroxynitrite production.
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Affiliation(s)
- Akira Ikari
- Department of Environmental Biochemistry and Toxicology, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Shizuoka 422-8526, Japan.
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Kawai H, Sato W, Yuzawa Y, Kosugi T, Matsuo S, Takei Y, Kadomatsu K, Muramatsu T. Lack of the growth factor midkine enhances survival against cisplatin-induced renal damage. THE AMERICAN JOURNAL OF PATHOLOGY 2004; 165:1603-12. [PMID: 15509530 PMCID: PMC1618674 DOI: 10.1016/s0002-9440(10)63417-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Although cisplatin acts directly on proximal tubule epithelial cells and causes cell death, little is known regarding the biological significance of its secondary effects, such as inflammation. The growth factor midkine is highly expressed in the proximal tubule and exerts ambivalent activities as to cisplatin nephrotoxicity, ie, anti-apoptotic and chemotactic ones. Here we report that midkine-deficient mice show a significantly higher survival rate than wild-type mice. The levels of blood urea nitrogen and tubular degeneration and apoptosis were higher in wild-type mice despite the anti-apoptotic activity of midkine. We found that recruitment of neutrophils was more enhanced in wild-type mice, this being consistent with the chemotactic activity of midkine. Midkine expression in wild-type mice persisted for 24 hours, and then dramatically decreased. Preadministration of midkine anti-sense oligodeoxyribonucleotide to wild-type mice suppressed midkine expression, and consequently neutrophil infiltration. It is of note that neutrophil infiltration, apoptosis, and elevation of blood urea nitrogen became conspicuous sequentially, namely 1, 2, and 3 days after cisplatin administration, respectively. These findings suggest that early molecular events involving midkine induce inflammatory response and their circuits eventually enhance the death of the proximal tubule epithelial cells. The results indicate the crucial role of inflammation in cisplatin-induced renal damage, and provide a candidate molecular target for its prevention.
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Affiliation(s)
- Hanayo Kawai
- Department of Biochemistry, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
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Prabhu R, Balasubramanian KA. Effect of oxidants on small intestinal brush border membranes and colonic apical membranes--a comparative study. Comp Biochem Physiol C Toxicol Pharmacol 2003; 134:329-39. [PMID: 12643980 DOI: 10.1016/s1532-0456(02)00250-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This study compares composition of the rat small intestinal brush border membranes (BBM) and colonic apical membranes (CAM) and their susceptibility to in vitro exposure to various oxidants. Differences were observed between BBM and CAM in their lipid composition, sugar content, alkaline phosphatase (ALP) activity and cholesterol/phospholipid ratio. BBM and CAM were exposed to superoxide generated by xanthine+xanthine oxidase (X-XO) or peroxides such as tertiary butyl hydroperoxide (tBuOOH) and hydrogen peroxide (H(2)O(2)) and alterations in ALP activity, peroxidation parameters and membrane lipids were analyzed. Exposure of BBM and CAM to superoxide resulted in decrease in ALP activity and increase in peroxidation parameters such as protein carbonyl content, malondialdehyde and conjugated diene. Superoxide exposure also resulted in lipid alterations specifically in certain phospholipids. These alterations were prevented either by superoxide dismutase or by allopurinol. Peroxides did not have any significant effect. These results suggest that both BBM and CAM are susceptible to superoxide, which can bring about peroxidation and degradation of membrane lipids specifically, certain phospholipids.
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Affiliation(s)
- R Prabhu
- The Wellcome Trust Research Laboratory, Department of Gastrointestinal Sciences, Christian Medical College and Hospital, Vellore 632004, India
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Herak-Kramberger CM, Sabolic I. The integrity of renal cortical brush-border and basolateral membrane vesicles is damaged in vitro by nephrotoxic heavy metals. Toxicology 2001; 156:139-47. [PMID: 11164616 DOI: 10.1016/s0300-483x(00)00357-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Poisoning of experimental animals with cadmium (Cd), mercury (Hg), lead (Pb) or cis-diamminedichloroplatinum (cis-Pt) causes shortening and focal loss of microvilli in proximal tubule (PT) cells, thus indicating that the reduced reabsorptive surface due to damaged integrity of brush-border membrane (BBM) may contribute to the reabsorptive and secretory defects in these toxic states. In addition, in in vitro studies with isolated renal cortical BBM vesicles (BBMV), heavy metals (HM) inhibit transport of various compounds, and these data were interpreted as being a result of a direct inhibition of the respective membrane transporters. In this work we used a DeltapH-driven acridine orange fluorescence quench assay to test if various divalent cations affect in vitro the integrity of BBMV and basolateral membrane vesicles (BLMV) isolated from the rat renal cortex. In Cd-treated BBMV we found that: (a) the integrity of vesicles decreased with increasing concentrations of Cd; and (b) the loss of sealed vesicles was high at 37 degrees C, intermediate at 25 degrees C, and very low at 0 degrees C. The loss of sealed BBMV was caused also by Hg, Cu, Pb and Zn (Hg>>>Cu=Cd>Pb=Zn). Cis-Pt, Al, Fe, Ba, Mg and Mn had no effect. BLMV were damaged by HM with an efficiency Hg>>>Cd=Pb=Cu, whereas other divalent cations, including Zn, were ineffective. An SH-group protector, dithiothreitol, prevented the loss of sealed vesicles in some (Hg, Pb, Cu) but not in all (Cd, Zn) cases. We conclude that the nephrotoxic HM directly damage the integrity of PT cell plasma membranes; this may cause shortening and loss of microvilli and basolateral invaginations in HM-treated experimental animals in vivo. The data also indicate that caution should be taken when effects of HM on various transports are studied in isolated membrane vesicles in vitro; an impaired transport may result from the loss of vesicle integrity, and not necessarily from the direct inhibition of a transporter.
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Affiliation(s)
- C M Herak-Kramberger
- The Unit of Molecular Toxicology, Institute for Medical Research and Occupational Health, Ksaverska cesta 2, HR-10001 Zagreb, Croatia
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Murer H, Hernando N, Forster I, Biber J. Proximal tubular phosphate reabsorption: molecular mechanisms. Physiol Rev 2000; 80:1373-409. [PMID: 11015617 DOI: 10.1152/physrev.2000.80.4.1373] [Citation(s) in RCA: 390] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Renal proximal tubular reabsorption of P(i) is a key element in overall P(i) homeostasis, and it involves a secondary active P(i) transport mechanism. Among the molecularly identified sodium-phosphate (Na/P(i)) cotransport systems a brush-border membrane type IIa Na-P(i) cotransporter is the key player in proximal tubular P(i) reabsorption. Physiological and pathophysiological alterations in renal P(i) reabsorption are related to altered brush-border membrane expression/content of the type IIa Na-P(i) cotransporter. Complex membrane retrieval/insertion mechanisms are involved in modulating transporter content in the brush-border membrane. In a tissue culture model (OK cells) expressing intrinsically the type IIa Na-P(i) cotransporter, the cellular cascades involved in "physiological/pathophysiological" control of P(i) reabsorption have been explored. As this cell model offers a "proximal tubular" environment, it is useful for characterization (in heterologous expression studies) of the cellular/molecular requirements for transport regulation. Finally, the oocyte expression system has permitted a thorough characterization of the transport characteristics and of structure/function relationships. Thus the cloning of the type IIa Na-P(i )cotransporter (in 1993) provided the tools to study renal brush-border membrane Na-P(i) cotransport function/regulation at the cellular/molecular level as well as at the organ level and led to an understanding of cellular mechanisms involved in control of proximal tubular P(i) handling and, thus, of overall P(i) homeostasis.
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Affiliation(s)
- H Murer
- Institute of Physiology, University of Zürich, Zürich, Switzerland.
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Faurskov B, Bjerregaard H. Effect of Cisplatin on Transepithelial Resistance and Ion Transport in the A6 Renal Epithelial Cell Line. Toxicol In Vitro 1999; 13:611-7. [DOI: 10.1016/s0887-2333(99)00026-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Marin JJ, Macias RI, Criado JJ, Bueno A, Monte MJ, Serrano MA. DNA interaction and cytostatic activity of the new liver organotropic complex of cisplatin with glycocholic acid: Bamet-R2. Int J Cancer 1998; 78:346-52. [PMID: 9766570 DOI: 10.1002/(sici)1097-0215(19981029)78:3<346::aid-ijc15>3.0.co;2-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The aim of this study was to investigate the ability of the new liver organotropic complex of cisplatin with glycocholate (GC), Bamet-R2, to interact with DNA, inhibit its replication and hence reduce tumor-cell proliferation. Changes in the electrophoretic mobility of the open and covalently closed circular forms of the pUC18 plasmid DNA from Escherichia coli, a shift in the denaturation temperature of double-stranded DNA, and ethidium-bromide displacement from DNA binding, were induced by Bamet-R2 and cisplatin, but not by GC. Neutral-red retention was used to measure the number of living cells in culture after long-term (72-hr) exposure to these compounds and to evaluate the effect on cell viability after short-term (6-hr) exposure. Bamet-R2 and cisplatin, but not GC, induced significant inhibition of cell growth. This effect ranged from mild to strong, depending upon the sensitivity of the different cell types as follows: cisplatin, rat hepatocytes in primary culture < rat hepatoma McA-RH7777 cells (rH) < human colon carcinoma LS 174T cells (hCC) < mouse hepatoma Hepa 1-6 cells (mH); Bamet-R2, rat hepatocytes < mH approximately equal to hCC < rH. DNA synthesis was measured by radiolabeled-thymidine incorporation into DNA. Bamet-R2 and cisplatin, but not GC, significantly inhibited the rate of DNA synthesis by these cells. After short-term exposure to Bamet-R2 or GC, no acute cell toxicity was observed, except on hCC cells. By contrast, acute toxicity was induced by cisplatin for all cell types studied. The in vivo anti-tumoral effect was investigated in 3 different strains of mice following s.c. implantation of tumor cells (mouse sarcoma S-18011 cells in Swiss and B6 mice and hCC cells in nude mice). In all 3 models, tumor growth was inhibited by Bamet-R2 and cisplatin to a similar degree. However, signs of toxicity (increases in blood urea concentrations and decreases in packed blood cell volume and in liver, kidney and body weight) and a reduction in survival rate were observed only during cisplatin administration. In sum, these results indicate that this bile-acid derivative can be considered as a cytostatic drug whose potential usefulness deserves further investigation.
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Affiliation(s)
- J J Marin
- Department of Physiology and Pharmacology, University of Salamanca, Spain.
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Abstract
Hyponatremia is a common potential complication in cancer patients. It can be related to anticancer medical therapy. Vincristine, vinblastine, cisplatin and cyclophosphamide are the chemotherapeutic agents most frequently associated with hyponatremia. More recently, analogs such as carboplatin and ifosfamide have also been incriminated. Hyponatremia is also associated with new immunomodulators (interferon, interleukin-2 and levamisole) and monoclonal antibodies. The mechanism by which all these drugs act on the sodium steady state is only partially known. The syndrome of inappropriate antidiuretic hormone secretion is described secondary to vinca alkaloids and cisplatin and possibly with alkylating agents. Renal salt wasting is described with platinum compounds.
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Affiliation(s)
- T Berghmans
- Department of Internal Medicine, Institut Jules Bordet, Brussels, Belgium
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