Please use this identifier to cite or link to this item: https://repositorio.unifesp.br/handle/11600/35742
Title: Postnatal Transplantation of Interneuronal Precursor Cells Decreases Anxiety-Like Behavior in Adult Mice
Authors: Valente, Maria Fernanda [UNIFESP]
Romariz, Simone Amaro Alves [UNIFESP]
Calcagnotto, Maria Elisa
Ruiz, L. [UNIFESP]
Mello, Luiz Eugenio Araujo de Moraes [UNIFESP]
Frussa-Filho, Roberto [UNIFESP]
Longo, Beatriz M. [UNIFESP]
Universidade Federal de São Paulo (UNIFESP)
Univ Fed Rio Grande do Sul
Keywords: GABAergic neuron (GABA)
Medial ganglionic eminence (MGE)
Green fluorescent protein (GFP)
Cell differentiation
Anxiolysis
Issue Date: 1-Jan-2013
Publisher: Cognizant Communication Corp
Citation: Cell Transplantation. Putnam Valley: Cognizant Communication Corp, v. 22, n. 7, p. 1237-1247, 2013.
Abstract: The GABAergic system is critically involved in the modulation of anxiety levels, and dysfunction of GABAergic neurotransmission appears to be involved in the development of generalized anxiety disorder. Precursor cells from the medial ganglionic eminence (MGE) have the ability to migrate and differentiate into inhibitory GABAergic interneurons after being transplanted into the mouse brain. Thus, transplantation of interneuronal precursor cells derived from the MGE into a postnatal brain could modify the neuronal circuitry, increasing GABAergic tone and decreasing anxiety-like behavior in animals. Our aim was to verify the in vivo effects of transplanted MGE cells by evaluating anxiety-like behavior in mice. MGE cells from 14-day green fluorescent protein (GFP) embryos were transplanted into newborn mice. At 15, 30, and 60 days posttransplant, the animals were tested for anxiety behavior with the elevated plus maze (EPM) test. Our results show that transplanted cells from MGE were able to migrate to different regions of the brain parenchyma and to differentiate into inhibitory interneurons. the neuronal precursor cell transplanted animals had decreased levels of anxiety, indicating a specific function of these cells in vivo. We suggested that transplantation of MGE-derived neuronal precursors into neonate brain could strengthen the inhibitory function of the GABAergic neuronal circuitry related to anxiety-like behavior in mice.
URI: http://repositorio.unifesp.br/handle/11600/35742
ISSN: 0963-6897
Other Identifiers: http://dx.doi.org/10.3727/096368912X657422
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