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Tonon CR, Monte MG, Balin PS, Fujimori ASS, Ribeiro APD, Ferreira NF, Vieira NM, Cabral RP, Okoshi MP, Okoshi K, Zornoff LAM, Minicucci MF, Paiva SAR, Gomes MJ, Polegato BF. Liraglutide Pretreatment Does Not Improve Acute Doxorubicin-Induced Cardiotoxicity in Rats. Int J Mol Sci 2024; 25:5833. [PMID: 38892020 PMCID: PMC11172760 DOI: 10.3390/ijms25115833] [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: 03/15/2024] [Revised: 05/17/2024] [Accepted: 05/20/2024] [Indexed: 06/21/2024] Open
Abstract
Doxorubicin is an effective drug for cancer treatment; however, cardiotoxicity limits its use. Cardiotoxicity pathophysiology is multifactorial. GLP-1 analogues have been shown to reduce oxidative stress and inflammation. In this study, we evaluated the effect of pretreatment with liraglutide on doxorubicin-induced acute cardiotoxicity. A total of 60 male Wistar rats were allocated into four groups: Control (C), Doxorubicin (D), Liraglutide (L), and Doxorubicin + Liraglutide (DL). L and DL received subcutaneous injection of liraglutide 0.6 mg/kg daily, while C and D received saline for 2 weeks. Afterwards, D and DL received a single intraperitoneal injection of doxorubicin 20 mg/kg; C and L received an injection of saline. Forty-eight hours after doxorubicin administration, the rats were subjected to echocardiogram, isolated heart functional study, and euthanasia. Liraglutide-treated rats ingested significantly less food and gained less body weight than animals that did not receive the drug. Rats lost weight after doxorubicin injection. At echocardiogram and isolated heart study, doxorubicin-treated rats had systolic and diastolic function impairment. Myocardial catalase activity was statistically higher in doxorubicin-treated rats. Myocardial protein expression of tumor necrosis factor alpha (TNF-α), phosphorylated nuclear factor-κB (p-NFκB), troponin T, and B-cell lymphoma 2 (Bcl-2) was significantly lower, and the total NFκB/p-NFκB ratio and TLR-4 higher in doxorubicin-treated rats. Myocardial expression of OPA-1, MFN-2, DRP-1, and topoisomerase 2β did not differ between groups (p > 0.05). In conclusion, doxorubicin-induced cardiotoxicity is accompanied by decreased Bcl-2 and phosphorylated NFκB and increased catalase activity and TLR-4 expression. Liraglutide failed to improve acute doxorubicin-induced cardiotoxicity in rats.
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Affiliation(s)
- Carolina R. Tonon
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (M.G.M.); (P.S.B.); (A.S.S.F.); (A.P.D.R.); (N.F.F.); (N.M.V.); (R.P.C.); (M.P.O.); (K.O.); (L.A.M.Z.); (M.F.M.); (S.A.R.P.); (B.F.P.)
| | - Marina G. Monte
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (M.G.M.); (P.S.B.); (A.S.S.F.); (A.P.D.R.); (N.F.F.); (N.M.V.); (R.P.C.); (M.P.O.); (K.O.); (L.A.M.Z.); (M.F.M.); (S.A.R.P.); (B.F.P.)
| | - Paola S. Balin
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (M.G.M.); (P.S.B.); (A.S.S.F.); (A.P.D.R.); (N.F.F.); (N.M.V.); (R.P.C.); (M.P.O.); (K.O.); (L.A.M.Z.); (M.F.M.); (S.A.R.P.); (B.F.P.)
| | - Anderson S. S. Fujimori
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (M.G.M.); (P.S.B.); (A.S.S.F.); (A.P.D.R.); (N.F.F.); (N.M.V.); (R.P.C.); (M.P.O.); (K.O.); (L.A.M.Z.); (M.F.M.); (S.A.R.P.); (B.F.P.)
| | - Ana Paula D. Ribeiro
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (M.G.M.); (P.S.B.); (A.S.S.F.); (A.P.D.R.); (N.F.F.); (N.M.V.); (R.P.C.); (M.P.O.); (K.O.); (L.A.M.Z.); (M.F.M.); (S.A.R.P.); (B.F.P.)
| | - Natália F. Ferreira
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (M.G.M.); (P.S.B.); (A.S.S.F.); (A.P.D.R.); (N.F.F.); (N.M.V.); (R.P.C.); (M.P.O.); (K.O.); (L.A.M.Z.); (M.F.M.); (S.A.R.P.); (B.F.P.)
| | - Nayane M. Vieira
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (M.G.M.); (P.S.B.); (A.S.S.F.); (A.P.D.R.); (N.F.F.); (N.M.V.); (R.P.C.); (M.P.O.); (K.O.); (L.A.M.Z.); (M.F.M.); (S.A.R.P.); (B.F.P.)
| | - Ronny P. Cabral
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (M.G.M.); (P.S.B.); (A.S.S.F.); (A.P.D.R.); (N.F.F.); (N.M.V.); (R.P.C.); (M.P.O.); (K.O.); (L.A.M.Z.); (M.F.M.); (S.A.R.P.); (B.F.P.)
| | - Marina P. Okoshi
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (M.G.M.); (P.S.B.); (A.S.S.F.); (A.P.D.R.); (N.F.F.); (N.M.V.); (R.P.C.); (M.P.O.); (K.O.); (L.A.M.Z.); (M.F.M.); (S.A.R.P.); (B.F.P.)
| | - Katashi Okoshi
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (M.G.M.); (P.S.B.); (A.S.S.F.); (A.P.D.R.); (N.F.F.); (N.M.V.); (R.P.C.); (M.P.O.); (K.O.); (L.A.M.Z.); (M.F.M.); (S.A.R.P.); (B.F.P.)
| | - Leonardo A. M. Zornoff
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (M.G.M.); (P.S.B.); (A.S.S.F.); (A.P.D.R.); (N.F.F.); (N.M.V.); (R.P.C.); (M.P.O.); (K.O.); (L.A.M.Z.); (M.F.M.); (S.A.R.P.); (B.F.P.)
| | - Marcos F. Minicucci
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (M.G.M.); (P.S.B.); (A.S.S.F.); (A.P.D.R.); (N.F.F.); (N.M.V.); (R.P.C.); (M.P.O.); (K.O.); (L.A.M.Z.); (M.F.M.); (S.A.R.P.); (B.F.P.)
| | - Sergio A. R. Paiva
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (M.G.M.); (P.S.B.); (A.S.S.F.); (A.P.D.R.); (N.F.F.); (N.M.V.); (R.P.C.); (M.P.O.); (K.O.); (L.A.M.Z.); (M.F.M.); (S.A.R.P.); (B.F.P.)
| | - Mariana J. Gomes
- Department of Kinesiology and Sport Management, Texas A&M University, College Station, TX 77843, USA;
| | - Bertha F. Polegato
- Department of Internal Medicine, Botucatu Medical School, São Paulo State University (UNESP), Botucatu 18618-687, SP, Brazil; (M.G.M.); (P.S.B.); (A.S.S.F.); (A.P.D.R.); (N.F.F.); (N.M.V.); (R.P.C.); (M.P.O.); (K.O.); (L.A.M.Z.); (M.F.M.); (S.A.R.P.); (B.F.P.)
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Heinla K, Vasar E, Reppo I, Sedman T, Volke V. GLP-1 Receptor Agonists Induce Growth Hormone Secretion in Healthy Volunteers. Diabetes Ther 2023; 14:777-786. [PMID: 36800161 PMCID: PMC10064408 DOI: 10.1007/s13300-023-01381-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 02/06/2023] [Indexed: 02/18/2023] Open
Abstract
INTRODUCTION Growth hormone (GH) is an essential regulator of growth, body composition and fuel metabolism and, consequently, GH secretion is under the feedback control of numerous nutritional and endocrine mediators. Glucagon-like peptide 1 receptor agonists (GLP-1RAs) have been shown to exert pleiotropic effects, including stimulation of the activity of the hypothalamic-pituitary-adrenal axis. As GLP-1RAs exert multiple metabolic effects, we hypothesised that they may also affect the secretion of GH and examined the effect of a short-acting and a long-acting GLP-1 RA on GH secretion. METHODS This is a post hoc analysis of data from clinical trials. Two separate single-group open-label clinical trials were carried out in the ambulatory care setting with a duration of 1 and 21 days, respectively. Healthy adult male and female volunteers with no chronic illnesses or use of daily medicines were recruited for the study. The two interventions were: study 1, single dose of 10 µg exenatide administered subcutaneously (s.c.); study 2, 0.6 mg liraglutide administered s.c. once daily for 21 days. RESULTS Administration of a single dose of exenatide (study 1) caused a clear increase in GH levels, peaking between 60 and 120 min post-administration. There was also a small but statistically significant decrease in luteinising hormone and testosterone levels 120 min after exenatide dosing. Administration of the long-acting GLP-1RA liraglutide daily for 21 days (study 2) elicited an increase in GH levels with no change in insulin-like growth factor-1 (IGF-1) concentrations after 3 weeks of treatment. CONCLUSIONS The results show that the administration of GLP-1RAs may elicit an increase in growth hormone levels. GLP-1 signalling may be a novel mechanism of regulation of GH secretion. This finding needs to be replicated in the placebo-controlled trial. CLINICAL TRIAL REGISTRATION NUMBERS NCT02089256 and NCT03160261.
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Affiliation(s)
- Keiu Heinla
- Department of Physiology, Institute of Biomedicine and Translational Medicine, Centre of Excellence in Genomics and Translational Medicine, University of Tartu, Ravila 19, 50110, Tartu, Estonia
| | - Eero Vasar
- Department of Physiology, Institute of Biomedicine and Translational Medicine, Centre of Excellence in Genomics and Translational Medicine, University of Tartu, Ravila 19, 50110, Tartu, Estonia
| | - Ingrid Reppo
- Endocrinology Unit, Tartu University Hospital, Tartu, Estonia
| | - Tuuli Sedman
- Psychiatry Clinic, Tartu University Hospital, Tartu, Estonia
| | - Vallo Volke
- Department of Physiology, Institute of Biomedicine and Translational Medicine, Centre of Excellence in Genomics and Translational Medicine, University of Tartu, Ravila 19, 50110, Tartu, Estonia.
- Endocrinology Unit, Tartu University Hospital, Tartu, Estonia.
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Evans B, Stoltzfus B, Acharya N, Nyland JE, Arnold AC, Freet CS, Bunce SC, Grigson PS. Dose titration with the glucagon-like peptide-1 agonist, liraglutide, reduces cue- and drug-induced heroin seeking in high drug-taking rats. Brain Res Bull 2022; 189:163-173. [PMID: 36038016 PMCID: PMC10757750 DOI: 10.1016/j.brainresbull.2022.08.022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 08/17/2022] [Accepted: 08/24/2022] [Indexed: 01/13/2023]
Abstract
Opioid use disorder (OUD), like other substance use disorders (SUDs), is widely understood to be a disorder of persistent relapse. Despite the use of three FDA-approved medications for OUD, typically in conjunction with behavioral treatments, relapse rates remain unacceptably high. Whereas medication assisted therapy (MAT) reduces the risk of opioid overdose mortality, the benefits of MAT are negated when people discontinue the medications. Currently approved medications present barriers to efficient use, including daily visits to a treatment center or work restrictions. With spiking increases in opioid relapse and death, it is imperative to identify new treatments that can reduce the risk of relapse. Recent evidence suggests that glucagon-like peptide-1 receptor agonists (GLP-1RAs), currently FDA-approved to treat obesity and type two diabetes, may be promising candidates to reduce relapse. GLP-1RAs have been shown to reduce relapse in rats, whether elicited by cues, drug, and/or stress. However, GLP-1RAs also can cause gastrointestinal malaise, and therefore, in humans, the medication typically is titrated up to full dose when initiating treatment. Here, we used a rodent model to test whether cue- and drug-induced heroin seeking can be reduced by the GLP-1RA, liraglutide, when the dose is titrated across the abstinence period and prior to test. The results show this titration regimen is effective in reducing both cue-induced heroin seeking and drug-induced reinstatement of heroin seeking, particularly in rats with a history of high drug-taking. Importantly, this treatment regimen had no effect on either circulating glucose or insulin. GLP-1RAs, then, appear strong candidates for the non-opioid prevention of relapse to opioids.
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Affiliation(s)
- Brianna Evans
- Department of Neural and Behavioral Sciences, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; Penn State Addiction Center for Translation, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Brooke Stoltzfus
- Department of Neural and Behavioral Sciences, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Nikhil Acharya
- Department of Neural and Behavioral Sciences, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; Penn State Addiction Center for Translation, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Jennifer E Nyland
- Department of Neural and Behavioral Sciences, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; Penn State Addiction Center for Translation, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Amy C Arnold
- Department of Neural and Behavioral Sciences, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; Penn State Addiction Center for Translation, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Christopher S Freet
- Department of Psychiatry and Behavioral Health, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; Penn State Addiction Center for Translation, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Scott C Bunce
- Department of Psychiatry and Behavioral Health, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; Penn State Addiction Center for Translation, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | - Patricia S Grigson
- Department of Neural and Behavioral Sciences, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA; Penn State Addiction Center for Translation, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA.
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Heinla K, Vasar E, Sedman T, Volke V. A GLP-1 Receptor Agonist Inhibits Aldosterone Release in Healthy Volunteers. Horm Metab Res 2021; 53:402-407. [PMID: 34154031 DOI: 10.1055/a-1498-7098] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Glucagon-like peptide 1 receptor agonists (GLP-1 RAs) are antidiabetic drugs with effects beyond antihyperglycemic action. The aim of the study was to examine whether a single dose of exenatide could be used as a stimulation test for the pituitary-adrenal axis. We carried out a single-group, open-label pilot clinical trial in an ambulatory setting. Ten healthy volunteers of both sexes with body weight>65 kg and age between 18-50 years were recruited. After fasting for 12 hours the subjects received 10 μg of exenatide solution subcutaneously. Blood samples were taken before the administration of exenatide and up to 150 minutes thereafter. The primary outcome was the maximal level of cortisol after the administration of exenatide. Single administration of exenatide 10 μg resulted in a modest increase in ACTH and cortisol levels, as compared to untreated values, and a decrease in blood glucose levels. Remarkably, a robust suppression of both renin and aldosterone levels occurred. We showed that acute administration of exenatide in a full therapeutic dose modestly stimulates the hypothalamic-pituitary-adrenal axis but inhibits the renin-aldosterone system. Further research is warranted to confirm this finding in the placebo-controlled study.
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Affiliation(s)
- Keiu Heinla
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Eero Vasar
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Tuuli Sedman
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
| | - Vallo Volke
- Department of Physiology, Institute of Biomedicine and Translational Medicine, University of Tartu, Tartu, Estonia
- Endocrinology Unit, Tartu University Hospital, Tartu, Estonia
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Tolerance develops toward GLP-1 receptor agonists' glucose-lowering effect in mice. Eur J Pharmacol 2020; 885:173443. [PMID: 32750365 DOI: 10.1016/j.ejphar.2020.173443] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2020] [Revised: 07/29/2020] [Accepted: 07/29/2020] [Indexed: 01/20/2023]
Abstract
Glucagon-like peptide 1 (GLP-1) receptor agonists are popular antidiabetic drugs with potent glucose-lowering effects and low risk of hypoglycemia. Animal experiments and human data indicate that tolerance develops toward at least some of their effects, e.g., gastric motility. Whether tolerance develops toward the glucose-lowering effect of GLP-1 receptor agonists in mice has never been formally tested. The hypothesis of tolerance development in mice will be reported in this study. The direct glucose-lowering effect of the GLP-1 receptor agonists was measured in non-fasted mice and with intraperitoneal glucose tolerance test. Exenatide (10 μg/kg) and liraglutide (600 μg/kg) both substantially lost efficacy during the 18-day treatment as compared to the acute effect. We conclude that our results demonstrate development of tolerance toward GLP-1 receptor agonists' glucose-lowering effect in mice.
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The glucagon-like peptide 1 receptor agonist Exendin-4 decreases relapse-like drinking in socially housed mice. Pharmacol Biochem Behav 2017; 160:14-20. [PMID: 28778739 DOI: 10.1016/j.pbb.2017.07.014] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 06/26/2017] [Accepted: 07/31/2017] [Indexed: 12/21/2022]
Abstract
Glucagon-like peptide-1 (GLP-1) is a gut peptide that regulates food intake and glucose metabolism. GLP-1 is also produced and released in the brain, and GLP-1 receptors are expressed in brain regions important for alcohol and drug reward, and for the development of addiction. GLP-1 receptor agonists can decrease alcohol intake acutely in rodents. However, alcohol use disorder is a chronic condition that requires treatments to be effective in promoting abstinence from excessive alcohol consumption over time. Here, we assessed the effect of daily treatment with the GLP-1 receptor agonist Exendin-4 in an assay of relapse-like drinking in socially housed mice. Male C57BL/6NTac mice were allowed continuous access to alcohol without tastant in the home cage for 37days. Then, alcohol bottles were removed and Exendin-4 (1.5μg/kg/day) or saline was administered subcutaneously for 8days during alcohol deprivation. Treatment continued for 8 additional days after reintroducing access to alcohol. A high-precision automated fluid consumption system was used to monitor intake of alcohol and water, drinking kinetics, and locomotor activity. Exendin-4 prevented the deprivation-induced increase in alcohol intake observed in control mice, without significantly affecting total fluid intake, body weight, or locomotor activity. The reduced alcohol intake was caused by a protracted latency to the first drink of alcohol and a reduced number of drinking bouts, while bout size and duration were not affected. The effect was maintained undiminished throughout the treatment period. These findings support the possible use of GLP-1 receptor agonists in the treatment of alcohol use disorder.
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