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Palombo P, Maeda R, Riberti Zaniboni C, Antonagi Engi S, Yokoyama T, Bonetti Bertagna N, Anesio A, Cristina Bianchi P, Righi T, Emily Boaventura Tavares G, Souccar C, da Silva FBR, Cardoso Cruz F. Unlocking the role of dorsal hippocampal α4β2 nicotinic acetylcholine receptors in Ethanol-Induced conditioned place preference in mice. Neurosci Lett 2024; 824:137666. [PMID: 38331019 DOI: 10.1016/j.neulet.2024.137666] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Revised: 01/22/2024] [Accepted: 02/01/2024] [Indexed: 02/10/2024]
Abstract
Alcohol Use Disorder (AUD) presents a significant and challenging public health concern, marked by a dearth of effective pharmacological treatments. Understanding the neurobiological underpinnings of AUD is of paramount importance for the development of efficacious interventions. The process of addiction entails the acquisition of associative behaviors, prominently engaging the dorsal region of the hippocampus for encoding these associative memories. Nicotinic receptor systems have been implicated in mediating the rewarding effects of ethanol, as well as memory and learning processes. In our current investigation, we delved into the role of α4β2 nicotinic acetylcholine receptors (nAChRs) within the dorsal hippocampus in the context of ethanol-induced conditioned place preference (CPP), a robust model for scrutinizing the rewarding properties and drug-associated behaviors. To establish CPP, ethanol (2 g/kg) was administered intraperitoneally during a 8-day conditioning phase. Fos immunohistochemistry was employed to assess the involvement of discrete subregions within the dorsal hippocampus in ethanol-induced CPP. Additionally, we probed the influence of α4β2 nAChRs on CPP via microinjections of a selective nAChR antagonist, dihydro-β-erythroidine (DHBE, at dosages of 6, 12, and 18 µg/0.5 µL per hemisphere) within the hippocampus. Our results unveiled that ethanol-induced CPP was associated with an increase Fos -positive cells in various subregions of the dorsal hippocampus, including CA1, CA2, CA3, and the dentate gyrus. Intrahippocampal administration of DHBE (at doses of 6 and 18 µg/0.50 µL per hemisphere) effectively blocked ethanol-induced CPP, while leaving locomotor activity unaffected. These findings underscore the critical involvement of the dorsal hippocampus and α4β2 nAChRs in the acquisition of ethanol-associated learning and reward.
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Affiliation(s)
- Paola Palombo
- Department of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil.
| | - Roberta Maeda
- Department of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Caroline Riberti Zaniboni
- Department of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Sheila Antonagi Engi
- Department of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Thais Yokoyama
- Department of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Natalia Bonetti Bertagna
- Department of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Augusto Anesio
- Department of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Paula Cristina Bianchi
- Department of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Thamires Righi
- Department of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | - Caden Souccar
- Department of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
| | | | - Fabio Cardoso Cruz
- Department of Pharmacology, Escola Paulista de Medicina, Universidade Federal de São Paulo, São Paulo, Brazil
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Favoretto CA, Bertagna NB, Righi T, Rodolpho BT, Anjos-Santos A, Silva FBR, Bianchi PC, Cruz FC. Impacts of maternal separation stress on ethanol-related responses, anxiety- and depressive-like behaviors in adolescent mice. Neurosci Lett 2023; 809:137295. [PMID: 37182574 DOI: 10.1016/j.neulet.2023.137295] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2023] [Revised: 04/18/2023] [Accepted: 05/08/2023] [Indexed: 05/16/2023]
Abstract
The present work evaluated the consequences of chronic maternal separation (MS), an animal model of early-life stress, on ethanol intake and striatal Fos expression induced by ethanol consumption. Furthermore, we analyzed MS impacts on anxiety- and depressive-like behaviors and on locomotor and plasma corticosterone responses to intraperitoneal treatment with ethanol in adolescent mice. For that, male and female C57BL/6J mice were exposed or not to MS stress, for 3 h per day, from postnatal day (PND) 1 to 14, and submitted to behavioral tests from PND 28. In Experiment 1, MS and control groups of mice were submitted to an involuntary ethanol intake protocol, and striatal Fos expression following ethanol exposure was analyzed. In Experiment 2, mice behavior was assessed in elevated plus-maze, sucrose splash, saccharin preference, and open field tests. Locomotor and plasma corticosterone responses induced by a systemic dose of ethanol (1.75 g/kg) were also evaluated. Our results demonstrated that MS increased ethanol intake only in an acute manner and did not impact ethanol-induced Fos expression in the dorsal striatum and nucleus accumbens (NAc) core and shell subregions. MS did not change the parameters analyzed during elevated plus-maze, sucrose splash, preference for saccharin, and open field tests. MS did not affect locomotor activity following ethanol injection nor plasma corticosterone response to the drug. Thus, our data showed that MS transiently increased ethanol intake. However, early-life stress did not impact Fos, locomotor, or plasma corticosterone responses to the drug. In addition, MS did not affect anxiety- and depressive-like behaviors in adolescent mice.
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Affiliation(s)
- C A Favoretto
- Molecular and Behavioral Neuroscience Laboratory, Pharmacology Department, Universidade Federal de São Paulo, São Paulo, Brazil
| | - N B Bertagna
- Molecular and Behavioral Neuroscience Laboratory, Pharmacology Department, Universidade Federal de São Paulo, São Paulo, Brazil
| | - T Righi
- Molecular and Behavioral Neuroscience Laboratory, Pharmacology Department, Universidade Federal de São Paulo, São Paulo, Brazil
| | - B T Rodolpho
- Molecular and Behavioral Neuroscience Laboratory, Pharmacology Department, Universidade Federal de São Paulo, São Paulo, Brazil
| | - A Anjos-Santos
- Molecular and Behavioral Neuroscience Laboratory, Pharmacology Department, Universidade Federal de São Paulo, São Paulo, Brazil
| | - F B R Silva
- Molecular and Behavioral Neuroscience Laboratory, Pharmacology Department, Universidade Federal de São Paulo, São Paulo, Brazil
| | - P C Bianchi
- Molecular and Behavioral Neuroscience Laboratory, Pharmacology Department, Universidade Federal de São Paulo, São Paulo, Brazil
| | - F C Cruz
- Molecular and Behavioral Neuroscience Laboratory, Pharmacology Department, Universidade Federal de São Paulo, São Paulo, Brazil.
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Picoli CC, Martins PR, Wong XLC, Righi T, Guimarães PPG, Pinto MCX, Amorim JH, Azevedo VAC, Pereira SR, Kanashiro A, Cruz FC, Resende RR, Mintz A, Frenette PS, Birbrair A. Whole bone subcutaneous transplantation as a strategy to study precisely the bone marrow niche. Stem Cell Rev Rep 2022; 19:906-927. [PMID: 36585572 DOI: 10.1007/s12015-022-10496-9] [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] [Accepted: 12/15/2022] [Indexed: 01/01/2023]
Abstract
Hematopoietic stem cells are maintained in a specialized microenvironment, known as the 'niche', within the bone marrow. Understanding the contribution of cellular and molecular components within the bone marrow niche for the maintenance of hematopoietic stem cells is crucial for the success of therapeutic applications. So far, the roles of crucial mechanisms within the bone marrow niche have been explored in transgenic animals in which genetic modifications are ubiquitously introduced in the whole body. The lack of precise tools to explore genetic alterations exclusively within the bone marrow prevents our determination of whether the observed outcomes result from confounding effects from other organs. Here, we developed a new method - 'whole bone subcutaneous transplantation'- to study the bone marrow niche in transgenic animals precisely. Using immunolabeling of CD45.1 (donor) vs. CD45.2 (recipient) hematopoeitic stem cells, we demonstrated that hematopoeitic stem cells from the host animals colonize the subcutaneously transplanted femurs after transplantation, while the hematopoietic stem cells from the donor disappear. Strikinlgy, the bone marrow niche of these subcutaneously transplanted femurs remain from the donor mice, enabling us to study specifically cells of the bone marrow niche using this model. We also showed that genetic ablation of peri-arteriolar cells specifically in donor femurs reduced the numbers of hematopoietic stem cells in these bones. This supports the use of this strategy as a model, in combination with genetic tools, to evaluate how bone marrow niche specific modifications may impact non-modified hematopoietic stem cells. Thus, this approach can be utilized for genetic manipulation in vivo of specific cell types only within the bone marrow. The combination of whole bone subcutaneous transplantation with rodent transgenic models will facilitate a more precise, complex and comprehensive understanding of existing problems in the study of the hematopoietic stem cell bone marrow niche.
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Affiliation(s)
- Caroline C Picoli
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Xiao Lin Casey Wong
- Department of Dermatology, University of Wisconsin-Madison, Medical Sciences Center, Rm 4385, 1300 University Avenue, Madison, WI, 53706, USA
| | - Thamires Righi
- Department of Dermatology, University of Wisconsin-Madison, Medical Sciences Center, Rm 4385, 1300 University Avenue, Madison, WI, 53706, USA.,Department of Pharmacology, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Pedro P G Guimarães
- Department of Physiology and Biophysics, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Mauro C X Pinto
- Institute of Biological Sciences, Federal University of Goiás, Goiânia, GO, Brazil
| | - Jaime H Amorim
- Center of Biological Sciences and Health, Federal University of West Bahia, Barreiras, BA, Brazil
| | - Vasco A C Azevedo
- Department of Genetics, Ecology and Evolution, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | | | - Alexandre Kanashiro
- Department of Dermatology, University of Wisconsin-Madison, Medical Sciences Center, Rm 4385, 1300 University Avenue, Madison, WI, 53706, USA
| | - Fabio Cardoso Cruz
- Department of Pharmacology, Federal University of São Paulo, São Paulo, SP, Brazil
| | - Rodrigo R Resende
- Department of Biochemistry and Immunology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil
| | - Akiva Mintz
- Department of Radiology, Columbia University Medical Center, New York, NY, USA
| | - Paul S Frenette
- Gottesman Institute for Stem Cell and Regenerative Medicine Research, Albert Einstein College of Medicine, Bronx, New York, NY, USA.,Department of Cell Biology, Albert Einstein College of Medicine, Bronx, NY, USA.,Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Alexander Birbrair
- Department of Pathology, Federal University of Minas Gerais, Belo Horizonte, MG, Brazil. .,Department of Dermatology, University of Wisconsin-Madison, Medical Sciences Center, Rm 4385, 1300 University Avenue, Madison, WI, 53706, USA. .,Department of Radiology, Columbia University Medical Center, New York, NY, USA.
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Bertagna NB, Favoretto CA, Rodolpho BT, Palombo P, Yokoyama TS, Righi T, Loss CM, Leão RM, Miguel TT, Cruz FC. Maternal Separation Stress Affects Voluntary Ethanol Intake in a Sex Dependent Manner. Front Physiol 2021; 12:775404. [PMID: 34950053 PMCID: PMC8691459 DOI: 10.3389/fphys.2021.775404] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 10/26/2021] [Indexed: 01/20/2023] Open
Abstract
Maternal separation (MS) stress is a predictive animal model for evaluating the effects of early stress exposure on alcohol use disorders (AUD). The extended amygdala (AMY) is a complex circuit involved in both stress- and ethanol-related responses. We hypothesized that MS stress may increase ethanol consumption in adulthood, as well as augment neuronal activity in extended AMY, in a sex-dependent manner. We aimed to investigate the influence of MS stress on the ethanol consumption of male and female mice, and the involvement of extended amygdala sub-nuclei in this process. The C57BL/6J pups were subjected to 180min of MS, from postnatal day (PND) 1 to 14. The control group was left undisturbed. On PND 45, mice (n=28) in cages were exposed to a bottle containing 20% ethanol (w/v) for 4h during the dark period of the light-dark cycle, for 3weeks. Afterward, mice underwent ethanol self-administration training in operant chambers under fixed ratio (FR) schedule. Then, subjects were tested under 2h sessions of a progressive-ratio (PR) schedule of reinforcement (the last ratio achieved was considered the breaking point), and at the end, a 4h session of FR schedule (binge-intake). An immunohistochemistry assay for Fos protein was performed in Nucleus Accumbens (NAcc), Bed Nucleus of Stria Terminalis (BNST), and AMY. Our results showed that in the third week of training, the female MS group consumed more ethanol than the respective control group. The MS group presented increased breakpoint parameters. Female control group and male MS group were more resistant to bitter quinine taste. Increased Fos-immunoreactive neurons (Fos-IR) were observed in the central nucleus of AMY, but not in NAcc nor BNST in male maternal-separated mice. Maternal separation stress may influence ethanol intake in adulthood, and it is dependent on the sex and reinforcement protocol.
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Affiliation(s)
- Natalia Bonetti Bertagna
- Molecular and Behavioral Neuroscience Laboratory, Department of Pharmacology, Federal University of São Paulo, São Paulo, Brazil
| | - Cristiane Aparecida Favoretto
- Molecular and Behavioral Neuroscience Laboratory, Department of Pharmacology, Federal University of São Paulo, São Paulo, Brazil
| | - Ben Tagami Rodolpho
- Molecular and Behavioral Neuroscience Laboratory, Department of Pharmacology, Federal University of São Paulo, São Paulo, Brazil
| | - Paola Palombo
- Molecular and Behavioral Neuroscience Laboratory, Department of Pharmacology, Federal University of São Paulo, São Paulo, Brazil
| | - Thais Suemi Yokoyama
- Molecular and Behavioral Neuroscience Laboratory, Department of Pharmacology, Federal University of São Paulo, São Paulo, Brazil
| | - Thamires Righi
- Molecular and Behavioral Neuroscience Laboratory, Department of Pharmacology, Federal University of São Paulo, São Paulo, Brazil
| | - Cássio Morais Loss
- Molecular and Behavioral Neuroscience Laboratory, Department of Pharmacology, Federal University of São Paulo, São Paulo, Brazil.,National Institute for Translational Medicine (INCT-TM), National Council for Scientific and Technological Development (CNPq/CAPES/FAPESP), Ribeirão Preto, Brazil
| | - Rodrigo Molini Leão
- Pharmacology Laboratory, Department of Pharmacology, Biomedical Sciences Institute, Federal University of Uberlândia, Uberlândia, Brazil
| | - Tarciso Tadeu Miguel
- Pharmacology Laboratory, Department of Pharmacology, Biomedical Sciences Institute, Federal University of Uberlândia, Uberlândia, Brazil
| | - Fábio Cardoso Cruz
- Molecular and Behavioral Neuroscience Laboratory, Department of Pharmacology, Federal University of São Paulo, São Paulo, Brazil
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Righi T, Carvalho CAD, Ribeiro LM, Cunha DNQD, Paiva ACS, Natali AJ, Pereira ET, Lima LM. CONSUMO DE ÁLCOOL E A INFLUÊNCIA DO EXERCÍCIO FÍSICO NA ATIVIDADE ENZIMÁTICA DE RATOS WISTAR. REV BRAS MED ESPORTE 2016. [DOI: 10.1590/1517-869220162201141536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
RESUMO Introdução: Biomarcadores vem sendo utilizados para monitorar o uso do álcool e, atualmente, os mais sensíveis e específicos são enzimas hepáticas, por exemplo, gama glutamiltransferase (GGT), alanina aminotransferase (ALT), aspartato aminotransferase (AST) e fosfatase alcalina (ALP). Objetivo: Verificar, a partir da experimentação animal, as alterações provocadas pelo uso de álcool e pela prática de atividade física nas enzimas hepáticas e pancreáticas. Métodos: Vinte e quatro ratos da linhagem Wistar foram distribuídos aleatoriamente em grupos experimentais, alojados em gaiolas com ambiente controlado, divididos de acordo com os tratamentos recebidos. No tratamento inicial, foi administrado álcool aos grupos álcool sedentário (AS) e álcool exercitado (AE) e, ao final da quarta semana, iniciou-se o programa de treinamento físico em esteira com os grupos AE e controle exercitado (CE). A coleta de sangue foi realizada por punção cardíaca ao final de cada experimento. Na análise estatística, utilizou-se teste de análise de variância (ANOVA) seguido de teste de Tukey e teste de Kruskal-Wallis. Resultados: O grupo AS apresentou valores significativamente mais elevados de ALT e ALP quando comparado aos grupos CE e AE, respectivamente. Não foram observadas diferenças significativas entre os quatro grupos estudados para os parâmetros AST, GGT e amilase. Conclusão: A associação entre consumo de álcool e sedentarismo aumentou a liberação das enzimas ALT e ALP em ratos Wistar; a prática de exercício físico aeróbico após abstinência alcoólica evitou o aumento da liberação de ALP no plasma desses animais.
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