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Azam MA, Chakraborty P, Bokhari MM, Dadson K, Du B, Massé S, Si D, Niri A, Aggarwal AK, Lai PF, Riazi S, Billia F, Nanthakumar K. Cardioprotective effects of dantrolene in doxorubicin-induced cardiomyopathy in mice. Heart Rhythm O2 2021; 2:733-741. [PMID: 34988524 PMCID: PMC8710625 DOI: 10.1016/j.hroo.2021.08.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND Doxorubicin (Dox) is a potent chemotherapeutic agent, but its usage is limited by dose-dependent cardiotoxicity. Intracellular calcium dysregulation has been reported to be involved in doxorubicin-induced cardiomyopathy (DICM). The cardioprotective role of RyR stabilizer dantrolene (Dan) on the calcium dynamics of DICM has not yet been explored. OBJECTIVE To evaluate the effects of dantrolene on intracellular calcium dysregulation and cardiac contractile function in a DICM model. METHODS Adult male C57BL/6 mice were randomized into 4 groups: (1) Control, (2) Dox Only, (3) Dan Only, and (4) Dan + Dox. Fractional shortening (FS) and left ventricular ejection fraction (LVEF) were assessed by echocardiography. In addition, mice were sacrificed 2 weeks after doxorubicin injection for optical mapping of the heart in a Langendorff setup. RESULTS Treatment with Dox was associated with a reduction in both FS and LVEF at 2 weeks (P < .0001) and 4 weeks (P < .006). Dox treatment was also associated with prolongation of calcium transient durations CaTD50 (P = .0005) and CaTD80 (P < .0001) and reduction of calcium amplitude alternans ratio (P < .0001). Concomitant treatment with Dan prevented the Dox-induced decline in FS and LVEF (P < .002 at both 2 and 4 weeks). Dan also prevented Dox-induced prolongation of CaTD50 and CaTD80 and improved the CaT alternans ratio (P < .0001). Finally, calcium transient rise time was increased in the doxorubicin-treated group, indicating RyR2 dyssynchrony, and dantrolene prevented this prolongation (P = .02). CONCLUSION Dantrolene prevents cardiac contractile dysfunction following doxorubicin treatment by mitigating dysregulation of calcium dynamics.
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Affiliation(s)
- Mohammed Ali Azam
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Praloy Chakraborty
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada
- Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Mahmoud M. Bokhari
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada
- Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Keith Dadson
- Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Beibei Du
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Stéphane Massé
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Daoyuan Si
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Ahmed Niri
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Arjun K. Aggarwal
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Patrick F.H. Lai
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Sheila Riazi
- Malignant Hyperthermia Investigation Unit, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Filio Billia
- Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Canada
| | - Kumaraswamy Nanthakumar
- The Hull Family Cardiac Fibrillation Management Laboratory, Toronto General Hospital, University Health Network, Toronto, Canada
- Peter Munk Cardiac Centre, Toronto General Hospital, University Health Network, Toronto, Canada
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Ge W, Yuan M, Ceylan AF, Wang X, Ren J. Mitochondrial aldehyde dehydrogenase protects against doxorubicin cardiotoxicity through a transient receptor potential channel vanilloid 1-mediated mechanism. Biochim Biophys Acta Mol Basis Dis 2015; 1862:622-634. [PMID: 26692169 DOI: 10.1016/j.bbadis.2015.12.014] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 11/25/2015] [Accepted: 12/11/2015] [Indexed: 12/25/2022]
Abstract
Cardiotoxicity is one of the major life-threatening effects encountered in cancer chemotherapy with doxorubicin and other anthracyclines. Mitochondrial aldehyde dehydrogenase (ALDH2) may alleviate doxorubicin toxicity although the mechanism remains elusive. This study was designed to evaluate the impact of ALDH2 overexpression on doxorubicin-induced myocardial damage with a focus on mitochondrial injury. Wild-type (WT) and transgenic mice overexpressing ALDH2 driven by chicken β-actin promoter were challenged with doxorubicin (15mg/kg, single i.p. injection, for 6days) and cardiac mechanical function was assessed using the echocardiographic and IonOptix systems. Western blot analysis was used to evaluate intracellular Ca(2+) regulatory and mitochondrial proteins, PKA and its downstream signal eNOS. Doxorubicin challenge altered cardiac geometry and function evidenced by enlarged left ventricular end systolic and diastolic diameters, decreased factional shortening, cell shortening and intracellular Ca(2+) rise, prolonged relengthening and intracellular Ca(2+) decay, the effects of which were attenuated by ALDH2. Doxorubicin challenge compromised mitochondrial integrity and upregulated 4-HNE and UCP-2 levels while downregulating levels of TRPV1, SERCA2a and PGC-1α, the effects of which were alleviated by ALDH2. Doxorubicin-induced cardiac functional defect and apoptosis were reversed by the TRPV1 agonist SA13353 and the ALDH-2 agonist Alda-1 whereas the TRPV1 antagonist capsazepine nullified ALDH2/Alda-1-induced protection. Doxorubicin suppressed phosphorylation of PKA and eNOS, the effect of which was reversed by ALDH2. Moreover, 4-HNE mimicked doxorubicin-induced cardiomyocyte anomalies, the effect of which was ablated by SA13353. Taken together, our results suggested that ALDH2 may rescue against doxorubicin cardiac toxicity possibly through a TRPV1-mediated protection of mitochondrial integrity.
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Affiliation(s)
- Wei Ge
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China; Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY 82071, USA
| | - Ming Yuan
- Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China
| | - Asli F Ceylan
- Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY 82071, USA
| | - Xiaoming Wang
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China.
| | - Jun Ren
- Department of Geriatrics, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China; Center for Cardiovascular Research and Alternative Medicine, University of Wyoming College of Health Sciences, Laramie, WY 82071, USA; Shanghai Institute of Cardiovascular Diseases, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
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CHUGUN A, UCHIDE T, TSURIMAKI C, NAGASAWA H, SASAKI T, UENO S, TAKAGISHI K, HARA Y, TEMMA K. Mechanisms Responsible for Reduced Cardiotoxicity of Mitoxantrone Compared to Doxorubicin Examined in Isolated Guinea-Pig Heart Preparations. J Vet Med Sci 2008; 70:255-64. [DOI: 10.1292/jvms.70.255] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Akihito CHUGUN
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University
| | - Tsuyoshi UCHIDE
- Laboratory of Toxicology, School of Veterinary Medicine, Kitasato University
| | - Chieko TSURIMAKI
- Laboratory of Toxicology, School of Veterinary Medicine, Kitasato University
| | - Hajime NAGASAWA
- Laboratory of Toxicology, School of Veterinary Medicine, Kitasato University
| | - Takushi SASAKI
- Laboratory of Toxicology, School of Veterinary Medicine, Kitasato University
| | - Shunji UENO
- Laboratory of Veterinary Public Health, School of Veterinary Medicine, Kitasato University
| | - Kiyohiko TAKAGISHI
- Laboratory of Cell and Molecular Biology, School of Veterinary Medicine, Kitasato University
| | - Yukio HARA
- Laboratory of Veterinary Pharmacology, School of Veterinary Medicine, Kitasato University
| | - Kyosuke TEMMA
- Laboratory of Toxicology, School of Veterinary Medicine, Kitasato University
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Weiss M, Kang W. P-glycoprotein inhibitors enhance saturable uptake of idarubicin in rat heart: pharmacokinetic/pharmacodynamic modeling. J Pharmacol Exp Ther 2002; 300:688-94. [PMID: 11805234 DOI: 10.1124/jpet.300.2.688] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Little is known about cardiac uptake kinetics of idarubicin, including a possible protective role of P-glycoprotein (Pgp)-mediated transport. This study therefore investigated uptake and negative inotropic action of idarubicin in the single-pass isolated perfused rat heart by using a pharmacokinetic/pharmacodynamic modeling approach. Idarubicin was administered as a 10-min constant infusion of 0.5 mg followed by a 70-min washout period in the absence and presence of the Pgp antagonists verapamil or amiodarone. Outflow concentration and left ventricular developed pressure were measured and the model parameters were estimated by simultaneous nonlinear regression. The results indicate the existence of a saturable, Michaelis-Menten type uptake process into the heart (K(m) = 3.06 microM, V(max) = 46.0 microM/min). Verapamil and amiodarone significantly enhanced the influx rate (V(max) increased 1.8-fold), suggesting that idarubicin is transported by Pgp directly out of the membrane before it gets into the cell. Verapamil and amiodarone attenuated the negative inotropic action of idarubicin, which was linked to the intracellular concentration of idarubicin.
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Affiliation(s)
- Michael Weiss
- Section of Pharmacokinetics, Department of Pharmacology, Martin Luther University Halle-Wittenberg, Halle, Germany.
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Chugun A, Temma K, Oyamada T, Suzuki N, Kamiya Y, Hara Y, Sasaki T, Kondo H, Akera T. Doxorubicin-induced late cardiotoxicity: delayed impairment of Ca2+-handling mechanisms in the sarcoplasmic reticulum in the rat. Can J Physiol Pharmacol 2000. [DOI: 10.1139/y99-133] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Doxorubicin treatment causes delayed development of cardiotoxicity. Whether the doxorubicin-induced impairment of cardiac functions reverses or progresses with time after the cessation of the treatment was examined. The rats were injected with doxorubicin (2.5 mg/kg, i.v., once a week for 3 weeks) and sacrificed at 1 (1W), 13 (13W), or 18 (18W) weeks after the final doxorubicin administration. The time to peak of twitch contraction observed at 2-Hz stimulation was not altered in left atrial or ventricular muscle preparations isolated from 1W rats, but it was prolonged in those from 13W and 18W rats. The reduction of the magnitude of postrest contraction and the alteration of force-frequency relationships in left atrial muscle preparations in 1W rats were not significant, but were intensified in the 13W and 18W groups. Alterations in the postrest contraction and the force-frequency relationships in ventricular muscle preparations isolated from doxorubicin-treated rat hearts were weaker, but the pattern of alteration was similar to that observed in left atrial muscle preparations. Caffeine-induced contraction observed in skinned fibers that were isolated from the 1W rats was not altered, but it was reduced in the 18W rats. The Ca2+ sensitivity of contractile proteins was not altered in doxorubicin-treated rat hearts in any of the groups. The Kd values estimated from a [3H]ryanodine binding study were not altered, but the Bmax values were significantly lower in the 13W and 18W groups than those observed in control rats. These results suggest that the dysfunction of the sarcoplasmic reticulum progresses after the completion of doxorubicin treatment and contributes to the doxorubicin-induced late cardiotoxicity.Key words: doxorubicin, late cardiotoxicity, rat heart, sarcoplasmic reticulum.
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Temma K, Chugun A, Hara Y, Sasaki T, Kondo H. Biphasic positive inotropic actions of doxorubicin in isolated guinea pig hearts: relation to Ca2+ release from the sarcoplasmic reticulum. GENERAL PHARMACOLOGY 1999; 33:229-36. [PMID: 10480655 DOI: 10.1016/s0306-3623(99)00012-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Doxorubicin (30 microM) caused a biphasic (early and late phase) positive inotropic effect. A high concentration (200 microM) of this agent caused a stronger early phase, but a weaker late phase. The early phase caused by the high concentration of doxorubicin was significantly reduced by cyclopiazonnic acid or thapsigargin, although it was not altered by ryanodine, verapamil, or nifedipine. The late phase in the presence of the high concentration of doxorubicin was slightly enhanced by cyclopiazonic acid, verapamil or nifedipine, and markedly enhanced by ryanodine. At the end of the 4-hr experimental period in the presence of the high concentration of doxorubicin, the positive inotropic effects of CaCl2 were completely diminished. Verapamil almost completely restored the action of the doxorubicin.
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Affiliation(s)
- K Temma
- Department of Toxicology, School of Veterinary Medicine and Animal Sciences, Kitasato University, Towada, Aomori, Japan.
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Dalloz F, Maingon P, Cottin Y, Briot F, Horiot JC, Rochette L. Effects of combined irradiation and doxorubicin treatment on cardiac function and antioxidant defenses in the rat. Free Radic Biol Med 1999; 26:785-800. [PMID: 10232821 DOI: 10.1016/s0891-5849(98)00259-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Combined radiotherapy and chemotherapy have represented a major advance in the therapeutic management of cancer therapy. However, the combination of doxorubicin (DXR) and cardiac irradiation (IRR) could precipitate the unexpected expression of congestive heart failure. Oxidative lesions induced by IRR and DXR could represent one of the pathogenic factors of myocardial dysfunction. Our investigations were performed to evaluate in the rat: 1) cardiac functional changes, 2) cardiac and plasma peroxidative damage and antioxidant defenses variations, that occur 24 h (acute effects) and 30 d (middle term effects) following DXR treatment 1 mg/kg(-1)/day(-1) IP for 10 d and a 1 x 20 Gy cardiac gamma-irradiation. Our results showed that DXR affected heart reactivity as early as the end of its administration, although irradiation exerted no detectable effect. Antioxidant defenses disturbances in hearts of DXR treated rats were characterized by vitamins C and E decreases, catalase activity induction and an increase in lipid peroxidation. Moreover, plasma vitamin C consumption and the lower level of plasma lipid peroxidation attested to the efficient solicitation of antioxidant defenses that probably contributed to the preservation of cardiac function at 24 h. After 30 d, cardiac dysfunction became symptomatic at rest, resulting from DXR cardiac toxicity. In spite of the persistent activation of cardiac catalase activity, antioxidant deficiency and increased plasma and cardiac lipid peroxidation highlighted defenses overtaken. Thus, different physiopathological mechanisms are involved in heart disturbance at acute and middle terms, IRR and DXR acting on distinct targets without disclosing synergistic effects. After 30 d, cardiac and plasma biochemical abnormalities were emphasized by the combined DXR+IRR therapy, pointing out the severity of the damage. Oxidative damage to the heart induced both by irradiation and DXR, may be one of the pathogenic factors of myocardial dysfunction. There is the possibility that the deleterious effects might be limited by the use of pharmacologic antioxidant agents.
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Affiliation(s)
- F Dalloz
- Laboratoire de Physiopathologie et Pharmacologie Cardiovasculaires Expérimentales, Facultés de Médecine et de Pharmacie, Dijon, France.
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Hara Y, Chugun A, Futamura K, Nishino T, Kondo H. Diazepam Increases Calcium Sensitivity of the Skinned Cardiac Muscle Fiber in Guinea Pig. ACTA ACUST UNITED AC 1999. [DOI: 10.1016/s0021-5198(19)30818-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Temma K, Chugun A, Akera T, Hara Y, Sasaki T, Kondo H. Ca2+ overloading causes the negative inotropic effect of doxorubicin in myocytes isolated from guinea-pig hearts. Eur J Pharmacol 1997; 322:235-42. [PMID: 9098693 DOI: 10.1016/s0014-2999(96)00994-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
We reported previously that conditions shown to increase Ca2+ loading augment the negative inotropic effect of doxorubicin: To examine if the negative inotropic effect is caused by Ca2+ overloading doxorubicin-induced changes in diastolic and systolic Ca2+ concentrations and twitch contractions were studied under altered Ca2+ loading. Intracellular Ca2+ concentrations ([Ca2+]i) were monitored in fura-2-loaded myocytes isolated from the ventricular muscle of guinea-pig hearts. Twitch contractions were estimated from the shortening of myocytes. In myocytes incubated at 34 degrees C a medium containing 1.2 mM CaCl2 (standard conditions), doxorubicin (100 microM) caused a significant decrease in diastolic length, and an increase in the amplitude of contraction. The positive inotropic effect of doxorubicin was followed by a negative effect. Concomitant with these changes in myocyte contractions, a monophasic increase in diastolic Ca2+ and an increase and a subsequent decrease in the amplitude of Ca2+ transients (peak [Ca2+]i minus diastolic [Ca2+]i) were observed. When the Ca2+ load of myocytes was increased by an incubation at a low temperature (25 degrees C) or in the presence of high Ca2+ in the incubation medium (2.4 mM CaCl2), diastolic [Ca2+]i was elevated. Doxorubicin further increased diastolic [Ca2+]i. Under these conditions, the doxorubicin-induced increase in the twitch contraction lasted a shorter period of time and the subsequent decrease in contraction was significantly enhanced. The peak [Ca2+]i initially increased slightly and then decreased. Thus, the decrease in the amplitude of Ca2+ transients, as well as myocyte contraction was greater compared to the corresponding values observed under the standard conditions. These changes in the contraction and Ca2+ transient developed with the same time course. The effects of the low temperature incubation were antagonized by verapamil. These results indicate that the negative inotropic effect of doxorubicin results from a decrease in the amplitude of Ca2+ transients caused by an increased diastolic [Ca2+]i and a decreased peak [Ca2+]i. These changes are likely to be caused by myocardial Ca2+ overload.
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Affiliation(s)
- K Temma
- Department of Toxicology, School of Veterinary Medicine and Animal Sciences, Kitasato University, Aomori, Japan
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