Medial Amygdalar Aromatase Neurons Regulate Aggression in Both Sexes

Aromatase-expressing neuroendocrine neurons in the vertebrate male brain synthesize estradiol from circulating testosterone. This locally produced estradiol controls neural circuits underlying courtship vocalization, mating, aggression, and territory marking in male mice. How aromatase-expressing ne...

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Main Authors: Elizabeth K. Unger, Kenneth J. Burke Jr., Cindy F. Yang, Kevin J. Bender, Patrick M. Fuller, Nirao M. Shah
Format: Article
Language:English
Published: Elsevier 2015-02-01
Series:Cell Reports
Online Access:http://www.sciencedirect.com/science/article/pii/S2211124714010936
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author Elizabeth K. Unger
Kenneth J. Burke Jr.
Cindy F. Yang
Kevin J. Bender
Patrick M. Fuller
Nirao M. Shah
author_facet Elizabeth K. Unger
Kenneth J. Burke Jr.
Cindy F. Yang
Kevin J. Bender
Patrick M. Fuller
Nirao M. Shah
author_sort Elizabeth K. Unger
collection DOAJ
description Aromatase-expressing neuroendocrine neurons in the vertebrate male brain synthesize estradiol from circulating testosterone. This locally produced estradiol controls neural circuits underlying courtship vocalization, mating, aggression, and territory marking in male mice. How aromatase-expressing neuronal populations control these diverse estrogen-dependent male behaviors is poorly understood, and the function, if any, of aromatase-expressing neurons in females is unclear. Using targeted genetic approaches, we show that aromatase-expressing neurons within the male posterodorsal medial amygdala (MeApd) regulate components of aggression, but not other estrogen-dependent male-typical behaviors. Remarkably, aromatase-expressing MeApd neurons in females are specifically required for components of maternal aggression, which we show is distinct from intermale aggression in pattern and execution. Thus, aromatase-expressing MeApd neurons control distinct forms of aggression in the two sexes. Moreover, our findings indicate that complex social behaviors are separable in a modular manner at the level of genetically identified neuronal populations.
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spelling doaj.art-6c21e52e997c413e8ed508d9b5a01dd32022-12-22T00:49:36ZengElsevierCell Reports2211-12472015-02-0110445346210.1016/j.celrep.2014.12.040Medial Amygdalar Aromatase Neurons Regulate Aggression in Both SexesElizabeth K. Unger0Kenneth J. Burke Jr.1Cindy F. Yang2Kevin J. Bender3Patrick M. Fuller4Nirao M. Shah5Program in Biomedical Sciences, University of California, San Francisco, San Francisco, CA 94158, USAProgram in Neuroscience, University of California, San Francisco, San Francisco, CA 94158, USAProgram in Neuroscience, University of California, San Francisco, San Francisco, CA 94158, USADepartment of Neurology, University of California, San Francisco, San Francisco, CA 94158, USADepartment of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA 02215, USADepartment of Anatomy, University of California, San Francisco, San Francisco, CA 94158, USAAromatase-expressing neuroendocrine neurons in the vertebrate male brain synthesize estradiol from circulating testosterone. This locally produced estradiol controls neural circuits underlying courtship vocalization, mating, aggression, and territory marking in male mice. How aromatase-expressing neuronal populations control these diverse estrogen-dependent male behaviors is poorly understood, and the function, if any, of aromatase-expressing neurons in females is unclear. Using targeted genetic approaches, we show that aromatase-expressing neurons within the male posterodorsal medial amygdala (MeApd) regulate components of aggression, but not other estrogen-dependent male-typical behaviors. Remarkably, aromatase-expressing MeApd neurons in females are specifically required for components of maternal aggression, which we show is distinct from intermale aggression in pattern and execution. Thus, aromatase-expressing MeApd neurons control distinct forms of aggression in the two sexes. Moreover, our findings indicate that complex social behaviors are separable in a modular manner at the level of genetically identified neuronal populations.http://www.sciencedirect.com/science/article/pii/S2211124714010936
spellingShingle Elizabeth K. Unger
Kenneth J. Burke Jr.
Cindy F. Yang
Kevin J. Bender
Patrick M. Fuller
Nirao M. Shah
Medial Amygdalar Aromatase Neurons Regulate Aggression in Both Sexes
Cell Reports
title Medial Amygdalar Aromatase Neurons Regulate Aggression in Both Sexes
title_full Medial Amygdalar Aromatase Neurons Regulate Aggression in Both Sexes
title_fullStr Medial Amygdalar Aromatase Neurons Regulate Aggression in Both Sexes
title_full_unstemmed Medial Amygdalar Aromatase Neurons Regulate Aggression in Both Sexes
title_short Medial Amygdalar Aromatase Neurons Regulate Aggression in Both Sexes
title_sort medial amygdalar aromatase neurons regulate aggression in both sexes
url http://www.sciencedirect.com/science/article/pii/S2211124714010936
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