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Participation of bradykinin in adult mouse neurogenesis

Grant number: 13/12786-9
Support type:Scholarships in Brazil - Master
Effective date (Start): September 01, 2013
Effective date (End): August 31, 2015
Field of knowledge:Biological Sciences - Morphology - Cytology and Cell Biology
Principal researcher:Marimélia Aparecida Porcionatto
Grantee:Natália Muehringer Alves Pioli
Home Institution: Escola Paulista de Medicina (EPM). Universidade Federal de São Paulo (UNIFESP). Campus São Paulo. São Paulo , SP, Brazil
Associated research grant:12/50880-4 - Stem cells: from basic studies of kinin and purinergic receptor roles towards therapeutical applications, AP.TEM

Abstract

The discovery of neurogenesis in specific regions of the adult encephalon has arised new perspectives for cell therapy and regeneration of the nervous tissue. The mechanisms involved in maintaining neural stem cells in those specific regions of the adult brain are not completely understood yet, although the potential of neural stem cells to generate neurons and glia in pathological situations have been already recognized. Studies performed in the last years have demonstrated the role of bradykinin (BK) in the induction, progression and phenotypic determination of neural stem cell, as well as in migration. Despite that, the intracellular signaling pathways that are activated by BK, resulting in modulation of adult neural stem cell responses are not completely known. BK is one of the inflammatory mediators secreted in response a central nervous system injury, together with other anti- and proinflammatory cytokines. Among the cytokines secreted after an injury is the chemokine CXCL12, which stimulates neural stem cell migration from the subventricular zone to the injury site. It has already been described that BK and CXCL12 are associated to the pathophysiology of neuropathic pain, but there are no information regarding a possible combined action of those two factors in response to injuries to the central nervous system. Based on that, we propose to evaluate possible interactions between BK and CXCL12 on proliferation and migration of neural stem cells in vitro.

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