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Rigney N, Campos-Lira E, Kirchner MK, Wei W, Belkasim S, Beaumont R, Singh S, Suarez SG, Hartswick D, Stern JE, de Vries GJ, Petrulis A. A vasopressin circuit that modulates mouse social investigation and anxiety-like behavior in a sex-specific manner. Proc Natl Acad Sci U S A 2024; 121:e2319641121. [PMID: 38709918 PMCID: PMC11098102 DOI: 10.1073/pnas.2319641121] [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: 11/20/2023] [Accepted: 04/02/2024] [Indexed: 05/08/2024] Open
Abstract
One of the largest sex differences in brain neurochemistry is the expression of the neuropeptide arginine vasopressin (AVP) within the vertebrate brain, with males having more AVP cells in the bed nucleus of the stria terminalis (BNST) than females. Despite the long-standing implication of AVP in social and anxiety-like behaviors, the circuitry underlying AVP's control of these behaviors is still not well defined. Using optogenetic approaches, we show that inhibiting AVP BNST cells reduces social investigation in males, but not in females, whereas stimulating these cells increases social investigation in both sexes, but more so in males. These cells may facilitate male social investigation through their projections to the lateral septum (LS), an area with the highest density of sexually differentiated AVP innervation in the brain, as optogenetic stimulation of BNST AVP → LS increased social investigation and anxiety-like behavior in males but not in females; the same stimulation also caused a biphasic response of LS cells ex vivo. Blocking the vasopressin 1a receptor (V1aR) in the LS eliminated all these responses. Together, these findings establish a sexually differentiated role for BNST AVP cells in the control of social investigation and anxiety-like behavior, likely mediated by their projections to the LS.
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Affiliation(s)
- Nicole Rigney
- Neuroscience Institute, Georgia State University, Atlanta, GA30302
| | - Elba Campos-Lira
- Neuroscience Institute, Georgia State University, Atlanta, GA30302
| | | | - Wei Wei
- Neuroscience Institute, Georgia State University, Atlanta, GA30302
| | - Selma Belkasim
- Neuroscience Institute, Georgia State University, Atlanta, GA30302
| | - Rachael Beaumont
- Neuroscience Institute, Georgia State University, Atlanta, GA30302
| | - Sumeet Singh
- Neuroscience Institute, Georgia State University, Atlanta, GA30302
| | | | - Delenn Hartswick
- Neuroscience Institute, Georgia State University, Atlanta, GA30302
| | - Javier E. Stern
- Neuroscience Institute, Georgia State University, Atlanta, GA30302
| | | | - Aras Petrulis
- Neuroscience Institute, Georgia State University, Atlanta, GA30302
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2
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Bolton PE, Ryder TB, Dakin R, Houtz JL, Moore IT, Balakrishnan CN, Horton BM. Neurogenomic landscape associated with status-dependent cooperative behaviour. Mol Ecol 2024:e17327. [PMID: 38511765 DOI: 10.1111/mec.17327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 01/04/2024] [Accepted: 03/07/2024] [Indexed: 03/22/2024]
Abstract
The neurogenomic mechanisms mediating male-male reproductive cooperative behaviours remain unknown. We leveraged extensive transcriptomic and behavioural data on a neotropical bird species (Pipra filicauda) that performs cooperative courtship displays to understand these mechanisms. In this species, the cooperative display is modulated by testosterone, which promotes cooperation in non-territorial birds, but suppresses cooperation in territory holders. We sought to understand the neurogenomic underpinnings of three related traits: social status, cooperative display behaviour and testosterone phenotype. To do this, we profiled gene expression in 10 brain nuclei spanning the social decision-making network (SDMN), and two key endocrine tissues that regulate social behaviour. We associated gene expression with each bird's behavioural and endocrine profile derived from 3 years of repeated measures taken from free-living birds in the Ecuadorian Amazon. We found distinct landscapes of constitutive gene expression were associated with social status, testosterone phenotype and cooperation, reflecting the modular organization and engagement of neuroendocrine tissues. Sex-steroid and neuropeptide signalling appeared to be important in mediating status-specific relationships between testosterone and cooperation, suggesting shared regulatory mechanisms with male aggressive and sexual behaviours. We also identified differentially regulated genes involved in cellular activity and synaptic potentiation, suggesting multiple mechanisms underpin these genomic states. Finally, we identified SDMN-wide gene expression differences between territorial and floater males that could form the basis of 'status-specific' neurophysiological phenotypes, potentially mediated by testosterone and growth hormone. Overall, our findings provide new, systems-level insights into the mechanisms of cooperative behaviour and suggest that differences in neurogenomic state are the basis for individual differences in social behaviour.
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Affiliation(s)
- Peri E Bolton
- Department of Biology, East Carolina University, Greenville, North Carolina, USA
- Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, District of Columbia, USA
| | - T Brandt Ryder
- Migratory Bird Center, Smithsonian National Zoological Park, Washington, District of Columbia, USA
- Bird Conservancy of the Rockies, Fort Collins, Colorado, USA
| | - Roslyn Dakin
- Migratory Bird Center, Smithsonian National Zoological Park, Washington, District of Columbia, USA
- Department of Biology, Carleton University, Ottawa, Ontario, Canada
| | - Jennifer L Houtz
- Department of Biology, Millersville University, Millersville, Pennsylvania, USA
- Department of Biology, Allegheny College, Meadville, Pennsylvania, USA
| | - Ignacio T Moore
- Department of Biological Sciences, Virginia Tech, Blacksburg, Virginia, USA
| | | | - Brent M Horton
- Department of Biology, Millersville University, Millersville, Pennsylvania, USA
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3
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Sullivan LF, Barker MS, Felix PC, Vuong RQ, White BH. Neuromodulation and the toolkit for behavioural evolution: can ecdysis shed light on an old problem? FEBS J 2024; 291:1049-1079. [PMID: 36223183 PMCID: PMC10166064 DOI: 10.1111/febs.16650] [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: 06/21/2022] [Revised: 09/06/2022] [Accepted: 10/12/2022] [Indexed: 05/10/2023]
Abstract
The geneticist Thomas Dobzhansky famously declared: 'Nothing in biology makes sense except in the light of evolution'. A key evolutionary adaptation of Metazoa is directed movement, which has been elaborated into a spectacularly varied number of behaviours in animal clades. The mechanisms by which animal behaviours have evolved, however, remain unresolved. This is due, in part, to the indirect control of behaviour by the genome, which provides the components for both building and operating the brain circuits that generate behaviour. These brain circuits are adapted to respond flexibly to environmental contingencies and physiological needs and can change as a function of experience. The resulting plasticity of behavioural expression makes it difficult to characterize homologous elements of behaviour and to track their evolution. Here, we evaluate progress in identifying the genetic substrates of behavioural evolution and suggest that examining adaptive changes in neuromodulatory signalling may be a particularly productive focus for future studies. We propose that the behavioural sequences used by ecdysozoans to moult are an attractive model for studying the role of neuromodulation in behavioural evolution.
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Affiliation(s)
- Luis F Sullivan
- Section on Neural Function, Laboratory of Molecular Biology, National Institute of Mental Health, Bethesda, MD, USA
| | - Matthew S Barker
- Section on Neural Function, Laboratory of Molecular Biology, National Institute of Mental Health, Bethesda, MD, USA
| | - Princess C Felix
- Section on Neural Function, Laboratory of Molecular Biology, National Institute of Mental Health, Bethesda, MD, USA
| | - Richard Q Vuong
- Section on Neural Function, Laboratory of Molecular Biology, National Institute of Mental Health, Bethesda, MD, USA
| | - Benjamin H White
- Section on Neural Function, Laboratory of Molecular Biology, National Institute of Mental Health, Bethesda, MD, USA
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4
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Rigney N, Campos-Lira E, Kirchner MK, Wei W, Belkasim S, Beaumont R, Singh S, de Vries GJ, Petrulis A. A vasopressin circuit that modulates sex-specific social interest and anxiety-like behavior in mice. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.11.06.564847. [PMID: 37986987 PMCID: PMC10659331 DOI: 10.1101/2023.11.06.564847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2023]
Abstract
One of the largest sex differences in brain neurochemistry is the male-biased expression of the neuropeptide arginine vasopressin (AVP) within the vertebrate social brain. Despite the long-standing implication of AVP in social and anxiety-like behavior, the precise circuitry and anatomical substrate underlying its control are still poorly understood. By employing optogenetic manipulation of AVP cells within the bed nucleus of the stria terminalis (BNST), we have unveiled a central role for these cells in promoting social investigation, with a more pronounced role in males relative to females. These cells facilitate male social investigation and anxiety-like behavior through their projections to the lateral septum (LS), an area with the highest density of sexually-dimorphic AVP fibers. Blocking the vasopressin 1a receptor (V1aR) in the LS eliminated stimulation-mediated increases in these behaviors. Together, these findings establish a distinct BNST AVP → LS V1aR circuit that modulates sex-specific social interest and anxiety-like behavior.
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5
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Rigney N, de Vries GJ, Petrulis A. Modulation of social behavior by distinct vasopressin sources. Front Endocrinol (Lausanne) 2023; 14:1127792. [PMID: 36860367 PMCID: PMC9968743 DOI: 10.3389/fendo.2023.1127792] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Accepted: 01/30/2023] [Indexed: 02/15/2023] Open
Abstract
The neuropeptide arginine-vasopressin (AVP) is well known for its peripheral effects on blood pressure and antidiuresis. However, AVP also modulates various social and anxiety-related behaviors by its actions in the brain, often sex-specifically, with effects typically being stronger in males than in females. AVP in the nervous system originates from several distinct sources which are, in turn, regulated by different inputs and regulatory factors. Based on both direct and indirect evidence, we can begin to define the specific role of AVP cell populations in social behavior, such as, social recognition, affiliation, pair bonding, parental behavior, mate competition, aggression, and social stress. Sex differences in function may be apparent in both sexually-dimorphic structures as well as ones without prominent structural differences within the hypothalamus. The understanding of how AVP systems are organized and function may ultimately lead to better therapeutic interventions for psychiatric disorders characterized by social deficits.
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Affiliation(s)
- Nicole Rigney
- Neuroscience Institute, Georgia State University, Atlanta, GA, United States
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6
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Rigney N, Zbib A, de Vries GJ, Petrulis A. Knockdown of sexually differentiated vasopressin expression in the bed nucleus of the stria terminalis reduces social and sexual behaviour in male, but not female, mice. J Neuroendocrinol 2022; 34:e13083. [PMID: 34978098 PMCID: PMC9213575 DOI: 10.1111/jne.13083] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 11/12/2021] [Accepted: 12/15/2021] [Indexed: 12/30/2022]
Abstract
The neuropeptide arginine-vasopressin (AVP) has long been implicated in the regulation of social behaviour and communication, but the sources of AVP release relevant for behaviour have not been precisely determined. Ablations of the sexually dimorphic AVP cells within the bed nucleus of the stria terminalis (BNST), which are more numerous in males, affect social behaviour differently in males and females. However, it is unknown whether these behavioural effects are caused by a reduction of AVP or of other factors associated with these cells. To test the role of AVP specifically, we used an shRNA viral construct to knock down AVP gene expression within the BNST of wild-type male and female mice, using scrambled sequence virus as a control, and evaluated subsequent changes in social behaviours (social investigation, ultrasonic vocalization (USV), scent marking, copulation, and aggression), or anxiety-like behaviours (elevated plus maze). We observed that, in males, knockdown of AVP expression in the BNST strongly reduced investigation of novel males, aggressive signalling towards other males (tail rattling, USV), and copulatory behaviour, but did not alter attack initiation, other measures of social communication, or anxiety-like behaviours. In females, however, BNST AVP knockdown did not alter any of these behaviours. These results point to differential involvement of AVP derived from the BNST in social behaviour.
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Affiliation(s)
- Nicole Rigney
- Center for Behavioral NeuroscienceNeuroscience InstituteGeorgia State UniversityAtlantaGeorgiaUSA
| | - Adam Zbib
- Center for Behavioral NeuroscienceNeuroscience InstituteGeorgia State UniversityAtlantaGeorgiaUSA
| | - Geert J. de Vries
- Center for Behavioral NeuroscienceNeuroscience InstituteGeorgia State UniversityAtlantaGeorgiaUSA
| | - Aras Petrulis
- Center for Behavioral NeuroscienceNeuroscience InstituteGeorgia State UniversityAtlantaGeorgiaUSA
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7
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Fricker BA, Seifert AW, Kelly AM. Characterization of social behavior in the spiny mouse,
Acomys cahirinus. Ethology 2021. [DOI: 10.1111/eth.13234] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
| | | | - Aubrey M. Kelly
- Department of Psychology Emory University Atlanta Georgia USA
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8
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Nourbakhsh-Rey M, Markham MR. Leptinergic Regulation of Vertebrate Communication Signals. Integr Comp Biol 2021; 61:1946-1954. [PMID: 34329470 DOI: 10.1093/icb/icab173] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Animal communication signals are regulated by multiple hormonal axes that ensure appropriate signal targeting, timing, and information content. The regulatory roles of steroid hormones and many peptide hormones are well understood and documented across a wide range of vertebrate taxa. Two recent studies have reported a novel function for leptin, a peptide hormone central to energy balance regulation: regulating communication signals of weakly electric fish and singing mice. With only limited evidence available at this time, a key question is just how widespread leptinergic regulation of communication signals is within and across taxa. A second important question is what features of communication signals are subject to leptinergic regulation. Here we consider the functional significance of leptinergic regulation of animal communication signals in the context of both direct and indirect signal metabolic costs. Direct costs arise from metabolic investment in signal production, while indirect costs arise from the predation and social conflict consequences of the signal's information content. We propose a preliminary conceptual framework for predicting which species will exhibit leptinergic regulation of their communication signals and which signal features leptin will regulate. This framework suggests a number of directly testable predictions within and across taxa. Accounting for additional factors such as life history and the potential co-regulation of communication signals by leptin and glucocorticoids will likely require modification or elaboration of this model.
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Affiliation(s)
| | - Michael R Markham
- Department of Biology, University of Oklahoma, Norman OK 73019 USA.,Cellular & Behavioral Neurobiology Graduate Program, University of Oklahoma, Norman OK 73019 USA
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9
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Rigney N, Whylings J, de Vries GJ, Petrulis A. Sex Differences in the Control of Social Investigation and Anxiety by Vasopressin Cells of the Paraventricular Nucleus of the Hypothalamus. Neuroendocrinology 2021; 111:521-535. [PMID: 32541145 PMCID: PMC7736187 DOI: 10.1159/000509421] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Accepted: 06/15/2020] [Indexed: 12/11/2022]
Abstract
The neuropeptide arginine-vasopressin (AVP) has long been implicated in the regulation of social behavior and communication in diverse taxa, but the source of AVP release relevant for behavior has not been precisely determined. Potential sources include hypothalamic cell populations such as the paraventricular (PVN), supraoptic, and suprachiasmatic nuclei, as well as extrahypothalamic cell groups in the extended amygdala. To address if AVP-expressing cells in the PVN are important for mouse social communication, we deleted PVN AVP-expressing cells using viral-mediated delivery of Cre-dependent caspase-9 cell death construct into the PVN of AVP-Cre-positive mice (expressing Cre-recombinase under the control of the AVP promoter) or AVP-Cre-negative littermate controls, and assessed their levels of social investigation, social communication, anxiety, sex behavior, and aggressive behavior. We found that these lesions increased social investigation in females, but not in males. However, in males but not in females, these lesions increased non-social anxiety-related behaviors in the elevated-plus maze. These results therefore point at differential involvement of PVN AVP-expressing cells in the context of social and emotional behavior in the two sexes, which may contribute to sex differences in social communication and anxiety disorders.
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Affiliation(s)
- Nicole Rigney
- Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, Georgia, USA,
| | - Jack Whylings
- Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, Georgia, USA
| | - Geert J de Vries
- Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, Georgia, USA
| | - Aras Petrulis
- Center for Behavioral Neuroscience, Neuroscience Institute, Georgia State University, Atlanta, Georgia, USA
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10
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Tong WH, Abdulai-Saiku S, Vyas A. Medial Amygdala Arginine Vasopressin Neurons Regulate Innate Aversion to Cat Odors in Male Mice. Neuroendocrinology 2021; 111:505-520. [PMID: 32447337 DOI: 10.1159/000508862] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 05/22/2020] [Indexed: 11/19/2022]
Abstract
Aversion to environmental cues of predators is an integral part of defensive behaviors in many prey animals. It enhances their survival and probability of future reproduction. At the same time, animals cannot be maximally defended because imperatives of defense usually trade-off with behaviors required for sexual reproduction like display of dominance and production of sexual pheromones. Here, we approach this trade-off through the lens of arginine vasopressin (AVP) neurons within the posterodorsal medial amygdala (MePD) of mice. This neuronal population is known to be involved in sexual behaviors like approach to sexually salient cues. We show that chemogenetic partial ablation of this neuronal population increases aversion to predator odors. Moreover, overexpression of AVP within this population is sufficient to reduce aversion to predator odors. The loss of fear of the predator odor occurs in parallel with increased recruitment of AVP neurons within the MePD. These observations suggest that AVP neurons in the medial aspect of the extended amygdala are a proximate locus for the reduction in innate fear during life stages dominated by reproductive efforts.
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Affiliation(s)
- Wen Han Tong
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Samira Abdulai-Saiku
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Ajai Vyas
- School of Biological Sciences, Nanyang Technological University, Singapore, Singapore,
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11
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Rigney N, Beaumont R, Petrulis A. Sex differences in vasopressin 1a receptor regulation of social communication within the lateral habenula and dorsal raphe of mice. Horm Behav 2020; 121:104715. [PMID: 32067962 PMCID: PMC7249673 DOI: 10.1016/j.yhbeh.2020.104715] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/04/2020] [Accepted: 02/09/2020] [Indexed: 02/06/2023]
Abstract
The neuropeptide arginine-vasopressin (AVP) has long been implicated in the regulation of social behavior and communication in diverse taxa, often through its actions on the V1a receptor (V1aR) and in a sex-different and steroid-dependent way. One source of sex-different brain AVP is the steroid-sensitive and sexually-dimorphic AVP neurons in the bed nucleus of the stria terminalis (BNST), a cell population that regulates social behavior in a sex-dependent manner. Potential targets of these BNST-AVP cells include the lateral habenula (LHb) and dorsal raphe (DR), areas known to be important for social behavior, yet few studies have investigated AVP action within these regions. Consequently, to test if V1aR action in the LHb or DR controls social behavior in a sexually dimorphic manner, we administered a highly-specific V1aR antagonist (or saline vehicle) in the LHb or DR of C57BL/6 male and female mice and tested its effects on social investigation, social communication (urine marking, ultrasonic vocalizations), and territorial aggression. V1aR antagonism of the LHb or DR decreased male urine marking toward unfamiliar males, but not toward unfamiliar females. Additionally, V1aR blockade of the LHb decreased ultrasonic vocalizations generated in the presence of females. Social investigation, locomotion and aggressive behavior were not altered by V1aR antagonism in either area. Blocking V1aR in the LHb or DR of females had no effect, indicating V1aR action in the DR and LHb drives sex differences in social communication.
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Affiliation(s)
- Nicole Rigney
- Neuroscience Institute, Georgia State University, 145 Piedmont Ave SE, Atlanta, GA 30303, USA; Center for Behavioral Neuroscience, Georgia State University, 145 Piedmont Ave SE, Atlanta, GA 30303, USA.
| | - Rachael Beaumont
- Neuroscience Institute, Georgia State University, 145 Piedmont Ave SE, Atlanta, GA 30303, USA; Center for Behavioral Neuroscience, Georgia State University, 145 Piedmont Ave SE, Atlanta, GA 30303, USA.
| | - Aras Petrulis
- Neuroscience Institute, Georgia State University, 145 Piedmont Ave SE, Atlanta, GA 30303, USA; Center for Behavioral Neuroscience, Georgia State University, 145 Piedmont Ave SE, Atlanta, GA 30303, USA.
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12
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Prounis GS, Ophir AG. One cranium, two brains not yet introduced: Distinct but complementary views of the social brain. Neurosci Biobehav Rev 2020; 108:231-245. [PMID: 31743724 PMCID: PMC6949399 DOI: 10.1016/j.neubiorev.2019.11.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Revised: 10/04/2019] [Accepted: 11/15/2019] [Indexed: 12/16/2022]
Abstract
Social behavior is pervasive across the animal kingdom, and elucidating how the brain enables animals to respond to social contexts is of great interest and profound importance. Our understanding of 'the social brain' has been fractured as it has matured. Two drastically different conceptualizations of the social brain have emerged with relatively little awareness of each other. In this review, we briefly recount the history behind the two dominant definitions of a social brain. The divide that has emerged between these visions can, in part, be attributed to differential attention to cortical or sub-cortical regions in the brain, and differences in methodology, comparative perspectives, and emphasis on functional specificity or generality. We discuss how these factors contribute to a lack of communication between research efforts, and propose ways in which each version of the social brain can benefit from the perspectives, tools, and approaches of the other. Interface between the two characterizations of social brain networks is sure to provide essential insight into what the social brain encompasses.
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Affiliation(s)
- George S Prounis
- Department of Psychology, Cornell University, Ithaca, NY, 14853, USA
| | - Alexander G Ophir
- Department of Psychology, Cornell University, Ithaca, NY, 14853, USA.
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13
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Sexually Dimorphic Vasopressin Cells Modulate Social Investigation and Communication in Sex-Specific Ways. eNeuro 2019; 6:eN-NWR-0415-18. [PMID: 30693316 PMCID: PMC6348451 DOI: 10.1523/eneuro.0415-18.2019] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 12/14/2018] [Accepted: 01/02/2019] [Indexed: 11/21/2022] Open
Abstract
The neuropeptide arginine vasopressin (AVP) has long been implicated in the regulation of social behavior and communication, but precisely which AVP cell groups are involved is largely unknown. To address whether the sexually dimorphic AVP cell group in the bed nucleus of the stria terminalis (BNST) is important for social communication, we deleted BNST AVP cells by viral delivery of a Cre-dependent caspase-3 cell-death construct in AVP-iCre-positive mice using AVP-iCre negative littermate as controls, and assessed social, sexual, aggressive and anxiety-related behaviors. In males, lesioning BNST AVP cells reduced social investigation of other males and increased urine marking (UM) in the presence of a live female, without altering ultrasonic vocalizations (USVs), resident-intruder aggression, copulatory behavior, anxiety, or investigation of females or their odor cues. In females, which have significantly fewer AVP cells in the BNST, these injections influenced copulatory behavior but otherwise had minimal effects on social behavior and communication, indicating that these cells contribute to sex differences in social behavioral function.
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14
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Vicario A, Mendoza E, Abellán A, Scharff C, Medina L. Genoarchitecture of the extended amygdala in zebra finch, and expression of FoxP2 in cell corridors of different genetic profile. Brain Struct Funct 2016; 222:481-514. [PMID: 27160258 PMCID: PMC5225162 DOI: 10.1007/s00429-016-1229-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Accepted: 04/21/2016] [Indexed: 02/01/2023]
Abstract
We used a battery of genes encoding transcription factors (Pax6, Islet1, Nkx2.1, Lhx6, Lhx5, Lhx9, FoxP2) and neuropeptides to study the extended amygdala in developing zebra finches. We identified different components of the central extended amygdala comparable to those found in mice and chickens, including the intercalated amygdalar cells, the central amygdala, and the lateral bed nucleus of the stria terminalis. Many cells likely originate in the dorsal striatal domain, ventral striatal domain, or the pallidal domain, as is the case in mice and chickens. Moreover, a cell subpopulation of the central extended amygdala appears to originate in the prethalamic eminence. As a general principle, these different cells with specific genetic profiles and embryonic origin form separate or partially intermingled cell corridors along the extended amygdala, which may be involved in different functional pathways. In addition, we identified the medial amygdala of the zebra finch. Like in the chickens and mice, it is located in the subpallium and is rich in cells of pallido-preoptic origin, containing minor subpopulations of immigrant cells from the ventral pallium, alar hypothalamus and prethalamic eminence. We also proposed that the medial bed nucleus of the stria terminalis is composed of several parallel cell corridors with different genetic profile and embryonic origin: preoptic, pallidal, hypothalamic, and prethalamic. Several of these cell corridors with distinct origin express FoxP2, a transcription factor implicated in synaptic plasticity. Our results pave the way for studies using zebra finches to understand the neural basis of social behavior, in which the extended amygdala is involved.
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Affiliation(s)
- Alba Vicario
- Laboratory of Brain Development and Evolution, Department of Experimental Medicine, Faculty of Medicine, University of Lleida, Institute of Biomedical Research of Lleida (IRBLleida), Avda. Alcalde Rovira Roure 80, Catalunya, 25198, Lleida, Spain
| | | | - Antonio Abellán
- Laboratory of Brain Development and Evolution, Department of Experimental Medicine, Faculty of Medicine, University of Lleida, Institute of Biomedical Research of Lleida (IRBLleida), Avda. Alcalde Rovira Roure 80, Catalunya, 25198, Lleida, Spain
| | | | - Loreta Medina
- Laboratory of Brain Development and Evolution, Department of Experimental Medicine, Faculty of Medicine, University of Lleida, Institute of Biomedical Research of Lleida (IRBLleida), Avda. Alcalde Rovira Roure 80, Catalunya, 25198, Lleida, Spain.
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15
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Ondrasek NR. Emerging Frontiers in Social Neuroendocrinology and the Study of Nonapeptides. Ethology 2016. [DOI: 10.1111/eth.12493] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Naomi R. Ondrasek
- Department of Neurobiology, Physiology, and Behavior University of California Davis CA USA
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Kelly AM, Ophir AG. Compared to what: What can we say about nonapeptide function and social behavior without a frame of reference? Curr Opin Behav Sci 2015; 6:97-103. [PMID: 26858966 PMCID: PMC4742393 DOI: 10.1016/j.cobeha.2015.10.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Our understanding of behavior and mechanism is undermined by the absence of a frame of reference because relationships between individuals and species are without context. We highlight a need to be more comparative, using nonapeptide (vasopressin and oxytocin) modulation of social behavior as an example. We reconsider the use of model organisms and the term 'social' in this context, contrasting two popular models for nonapeptide regulation of social behavior. We then propose that a frame of reference should be established by studying mechanisms of behavior across taxa along the same continua. If we are to ever establish a unifying theory of behavior, we must transcend individual examples and determine the relative relationships of behavior and mechanism among and between species.
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Affiliation(s)
- Aubrey M. Kelly
- Department of Psychology, Cornell University, Ithaca, NY 14853
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Oldfield RG, Harris RM, Hofmann HA. Integrating resource defence theory with a neural nonapeptide pathway to explain territory-based mating systems. Front Zool 2015; 12 Suppl 1:S16. [PMID: 26813803 PMCID: PMC4722349 DOI: 10.1186/1742-9994-12-s1-s16] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
The ultimate-level factors that drive the evolution of mating systems have been well studied, but an evolutionarily conserved neural mechanism involved in shaping behaviour and social organization across species has remained elusive. Here, we review studies that have investigated the role of neural arginine vasopressin (AVP), vasotocin (AVT), and their receptor V1a in mediating variation in territorial behaviour. First, we discuss how aggression and territoriality are a function of population density in an inverted-U relationship according to resource defence theory, and how territoriality influences some mating systems. Next, we find that neural AVP, AVT, and V1a expression, especially in one particular neural circuit involving the lateral septum of the forebrain, are associated with territorial behaviour in males of diverse species, most likely due to their role in enhancing social cognition. Then we review studies that examined multiple species and find that neural AVP, AVT, and V1a expression is associated with territory size in mammals and fishes. Because territoriality plays an important role in shaping mating systems in many species, we present the idea that neural AVP, AVT, and V1a expression that is selected to mediate territory size may also influence the evolution of different mating systems. Future research that interprets proximate-level neuro-molecular mechanisms in the context of ultimate-level ecological theory may provide deep insight into the brain-behaviour relationships that underlie the diversity of social organization and mating systems seen across the animal kingdom.
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Affiliation(s)
- Ronald G Oldfield
- Texas Research Institute for Environmental Studies, Sam Houston State University, Huntsville, TX 77341 USA; Department of Biology, Case Western Reserve University, Cleveland, OH 44106 USA; Department of Integrative Biology, The University of Texas at Austin, Austin, TX 78712 USA
| | - Rayna M Harris
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX 78712 USA; Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX 78712 USA
| | - Hans A Hofmann
- Department of Integrative Biology, The University of Texas at Austin, Austin, TX 78712 USA; Institute for Cellular and Molecular Biology, The University of Texas at Austin, Austin, TX 78712 USA; Institute for Neuroscience, The University of Texas at Austin, Austin, TX 78712 USA
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18
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Kingsbury MA, Jan N, Klatt JD, Goodson JL. Nesting behavior is associated with VIP expression and VIP-Fos colocalization in a network-wide manner. Horm Behav 2015; 69:68-81. [PMID: 25573700 PMCID: PMC4359656 DOI: 10.1016/j.yhbeh.2014.12.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Revised: 12/23/2014] [Accepted: 12/28/2014] [Indexed: 12/27/2022]
Abstract
Many species, including humans, engage in a series of behaviors that are preparatory to the arrival of offspring. Such "nesting behaviors" are of obvious importance, but relevant neuroendocrine mechanisms remain little studied. We here focus on the potential roles of vasoactive intestinal polypeptide (VIP) in the performance of appetitive and consummatory nesting behaviors in male and female zebra finches (Taeniopygia guttata). Using combined immunocytochemistry for Fos and in situ hybridization for VIP, we now show that many VIP cell groups show increased transcriptional activity in response to nest building in male and female zebra finches. Particularly strong data come from the preoptic area (medial preoptic area and medial preoptic nucleus), where VIP-Fos co-expression correlates positively with three different measures of nesting behavior, as does the number of VIP-expressing cells. Remarkably, we find that VIP mRNA and/or VIP-Fos co-expression is correlated with nesting behavior in virtually every brain area that we examined, including the medial amygdala (anterior and posterior), medial bed nucleus of the stria terminalis, medial preoptic area, medial preoptic nucleus, anterior hypothalamus, ventromedial hypothalamus, periaqueductal gray complex (central gray and nucleus intercollicularis), and ventral tegmental area. Near-significant effects are also obtained in the tuberoinfundibular hypothalamus. Although most correlations are positive, negative correlations are observed for the VIP cell group of the anterior hypothalamus, a population that selectively promotes aggression, and also the periaqueductal gray complex. These data demonstrate a network-wide relationship between peptide production and social behavior that is, to our knowledge, unparalleled by other peptidergic modulators.
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Affiliation(s)
- Marcy A Kingsbury
- Department of Biology, Indiana University, Bloomington, IN 47405, USA.
| | - Namratha Jan
- Department of Biology, Indiana University, Bloomington, IN 47405, USA
| | - James D Klatt
- Department of Biology, Indiana University, Bloomington, IN 47405, USA
| | - James L Goodson
- Department of Biology, Indiana University, Bloomington, IN 47405, USA
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Katz PS, Lillvis JL. Reconciling the deep homology of neuromodulation with the evolution of behavior. Curr Opin Neurobiol 2014; 29:39-47. [PMID: 24878891 DOI: 10.1016/j.conb.2014.05.002] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 05/02/2014] [Accepted: 05/05/2014] [Indexed: 01/05/2023]
Abstract
The evolution of behavior seems inconsistent with the deep homology of neuromodulatory signaling. G protein coupled receptors (GPCRs) evolved slowly from a common ancestor through a process involving gene duplication, neofunctionalization, and loss. Neuropeptides co-evolved with their receptors and exhibit many conserved functions. Furthermore, brain areas are highly conserved with suggestions of deep anatomical homology between arthropods and vertebrates. Yet, behavior evolved more rapidly; even members of the same genus or species can differ in heritable behavior. The solution to the paradox involves changes in the compartmentalization, or subfunctionalization, of neuromodulation; neurons shift their expression of GPCRs and the content of monoamines and neuropeptides. Furthermore, parallel evolution of neuromodulatory signaling systems suggests a route for repeated evolution of similar behaviors.
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Affiliation(s)
- Paul S Katz
- Neuroscience Institute, Georgia State University, PO Box 5030, Atlanta, GA 30302, United States.
| | - Joshua L Lillvis
- Janelia Farm Research Campus, Howard Hughes Medical Institute, United States
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Kelly AM, Goodson JL. Personality is tightly coupled to vasopressin-oxytocin neuron activity in a gregarious finch. Front Behav Neurosci 2014; 8:55. [PMID: 24611041 PMCID: PMC3933816 DOI: 10.3389/fnbeh.2014.00055] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Accepted: 02/04/2014] [Indexed: 11/23/2022] Open
Abstract
Nonapeptides of the vasopressin-oxytocin family modulate social processes differentially in relation to sex, species, behavioral phenotype, and human personality. However, the mechanistic bases for these differences are not well understood, in part because multidimensional personality structures remain to be described for common laboratory animals. Based upon principal components (PC) analysis of extensive behavioral measures in social and nonsocial contexts, we now describe three complex dimensions of phenotype (“personality”) for the zebra finch, a species that exhibits a human-like social organization that is based upon biparental nuclear families embedded within larger social groups. These dimensions can be characterized as Social competence/dominance, Gregariousness, and Anxiety. We further demonstrate that the phasic Fos responses of nonapeptide neurons in the paraventricular nucleus of the hypothalamus and medial bed nucleus of the stria terminalis are significantly predicted by personality, sex, social context, and their interactions. Furthermore, the behavioral PCs are each associated with a distinct suite of neural PCs that incorporate both peptide cell numbers and their phasic Fos responses, indicating that personality is reflected in complex patterns of neuromodulation arising from multiple peptide cell groups. These findings provide novel insights into the mechanisms underlying sex- and phenotype-specific modulation of behavior, and should be broadly relevant, given that vasopressin-oxytocin systems are strongly conserved across vertebrates.
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Affiliation(s)
- Aubrey M Kelly
- Department of Biology, Indiana University Bloomington, IN, USA
| | - James L Goodson
- Department of Biology, Indiana University Bloomington, IN, USA
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