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Zeid D, Toussaint AB, Dressler CC, Schumacher SP, Do C, Desalvo H, Selamawi D, Bongiovanni AR, Mayberry HL, Carr GV, Wimmer ME. Paternal morphine exposure in rats reduces social play in adolescent male progeny without affecting drug-taking behavior in juvenile males or female offspring. Mol Cell Neurosci 2023; 126:103877. [PMID: 37385516 PMCID: PMC10528482 DOI: 10.1016/j.mcn.2023.103877] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 06/02/2023] [Accepted: 06/24/2023] [Indexed: 07/01/2023] Open
Abstract
The ongoing opioid addiction crisis necessitates the identification of novel risk factors to improve prevention and treatment of opioid use disorder. Parental opioid exposure has recently emerged as a potential regulator of offspring vulnerability to opioid misuse, in addition to heritable genetic liability. An understudied aspect of this "missing heritability" is the developmental presentation of these cross-generational phenotypes. This is an especially relevant question in the context of inherited addiction-related phenotypes, given the prominent role of developmental processes in the etiology of psychiatric disorders. Paternal morphine self-administration was previously shown to alter the sensitivity to the reinforcing and antinociceptive properties of opioids in the next generation. Here, phenotyping was expanded to include the adolescent period, with a focus on endophenotypes related to opioid use disorders and pain. Paternal morphine exposure did not alter heroin or cocaine self-administration in male and female juvenile progeny. Further, baseline sensory reflexes related to pain were unaltered in morphine-sired adolescent rats of either sex. However, morphine-sired adolescent males exhibited a reduction in social play behavior. Our findings suggest that, in morphine-sired male offspring, paternal opioid exposure does not affect opioid intake during adolescence, suggesting that this phenotype does not emerge until later in life. Altered social behaviors in male morphine-sired adolescents indicate that the changes in drug-taking behavior in adults sired by morphine-exposed sires may be due to more complex factors not yet fully assessed.
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Affiliation(s)
- Dana Zeid
- Department of Psychology and Neuroscience, College of Liberal Arts, Temple University, United States of America
| | - Andre B Toussaint
- Zuckerman Mind Brain Behavior Institute, Columbia University, United States of America
| | - Carmen C Dressler
- Department of Psychology and Neuroscience, College of Liberal Arts, Temple University, United States of America
| | - Samuel P Schumacher
- Department of Psychology and Neuroscience, College of Liberal Arts, Temple University, United States of America
| | - Chau Do
- Department of Psychology and Neuroscience, College of Liberal Arts, Temple University, United States of America
| | - Heather Desalvo
- Department of Psychology and Neuroscience, College of Liberal Arts, Temple University, United States of America
| | - Danait Selamawi
- Department of Psychology and Neuroscience, College of Liberal Arts, Temple University, United States of America
| | - Angela R Bongiovanni
- Department of Psychology and Neuroscience, College of Liberal Arts, Temple University, United States of America
| | - Hannah L Mayberry
- Department of Psychology and Neuroscience, College of Liberal Arts, Temple University, United States of America
| | - Gregory V Carr
- Lieber Institute of Brain Development, Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, United States of America
| | - Mathieu E Wimmer
- Department of Psychology and Neuroscience, College of Liberal Arts, Temple University, United States of America.
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Toussaint AB, Ellis AS, Bongiovanni AR, Peterson DR, Bavley CC, Karbalaei R, Mayberry HL, Bhakta S, Dressler CC, Imperio CG, Maurer JJ, Schmidt HD, Chen C, Bland K, Liu-Chen LY, Wimmer ME. Paternal morphine exposure enhances morphine self-administration and induces region-specific neural adaptations in reward-related brain regions of male offspring. bioRxiv 2023:2023.01.03.522600. [PMID: 36711571 PMCID: PMC9881847 DOI: 10.1101/2023.01.03.522600] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Background A growing body of preclinical studies report that preconceptional experiences can have a profound and long-lasting impact on adult offspring behavior and physiology. However, less is known about paternal drug exposure and its effects on reward sensitivity in the next generation. Methods Adult male rats self-administered morphine for 65 days; controls received saline. Sires were bred to drug-naïve dams to produce first-generation (F1) offspring. Morphine, cocaine, and nicotine self-administration were measured in adult F1 progeny. Molecular correlates of addiction-like behaviors were measured in reward-related brain regions of drug naïve F1 offspring. Results Male, but not female offspring produced by morphine-exposed sires exhibited dose-dependent increased morphine self-administration and increased motivation to earn morphine infusions under a progressive ratio schedule of reinforcement. This phenotype was drug-specific as self-administration of cocaine, nicotine, and sucrose were not altered by paternal morphine history. The male offspring of morphine-exposed sires also had increased expression of mu-opioid receptors in the ventral tegmental area but not in the nucleus accumbens. Conclusions Paternal morphine exposure increased morphine addiction-like behavioral vulnerability in male but not female progeny. This phenotype is likely driven by long-lasting neural adaptations within the reward neural brain pathways.
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Affiliation(s)
- Andre B Toussaint
- Department of Psychology, Program in Neuroscience Temple University, Philadelphia, PA, USA
| | - Alexandra S Ellis
- Department of Psychology, Program in Neuroscience Temple University, Philadelphia, PA, USA
| | - Angela R Bongiovanni
- Department of Psychology, Program in Neuroscience Temple University, Philadelphia, PA, USA
| | - Drew R Peterson
- Department of Psychology, Program in Neuroscience Temple University, Philadelphia, PA, USA
| | - Charlotte C Bavley
- Department of Psychology, Program in Neuroscience Temple University, Philadelphia, PA, USA
| | - Reza Karbalaei
- Department of Psychology, Program in Neuroscience Temple University, Philadelphia, PA, USA
| | - Hannah L Mayberry
- Department of Psychology, Program in Neuroscience Temple University, Philadelphia, PA, USA
| | - Shivam Bhakta
- Department of Psychology, Program in Neuroscience Temple University, Philadelphia, PA, USA
| | - Carmen C Dressler
- Department of Psychology, Program in Neuroscience Temple University, Philadelphia, PA, USA
| | - Caesar G Imperio
- Department of Psychiatry and Behavioral Science, Temple University, Philadelphia, PA, USA
| | - John J Maurer
- Department of Biobehavioral Health Sciences, School of Nursing, University of Pennsylvania, Philadelphia, PA, USA
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Heath D Schmidt
- Department of Biobehavioral Health Sciences, School of Nursing, University of Pennsylvania, Philadelphia, PA, USA
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Chongguang Chen
- Center for Substance Abuse Research and Department of Neural Sciences. Temple University Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Kathryn Bland
- Center for Substance Abuse Research and Department of Neural Sciences. Temple University Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Lee-Yuan Liu-Chen
- Center for Substance Abuse Research and Department of Neural Sciences. Temple University Lewis Katz School of Medicine, Temple University, Philadelphia, PA, USA
| | - Mathieu E Wimmer
- Department of Psychology, Program in Neuroscience Temple University, Philadelphia, PA, USA
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