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Androgen receptor function in motor neuron survival and degeneration.
Cary, Gregory A; La Spada, Albert R.
Afiliação
  • Cary GA; Department of Laboratory Medicine, University of Washington Medical Center, Box 357110, Room NW 120, Seattle, WA 98195-7110, USA.
Phys Med Rehabil Clin N Am ; 19(3): 479-94, viii, 2008 Aug.
Article em En | MEDLINE | ID: mdl-18625411
ABSTRACT
Polyglutamine repeat expansion in the androgen receptor is responsible for the motor neuron degeneration in X-linked spinal and bulbar muscular atrophy (SBMA; Kennedy's disease). This mutation, like the other polyglutamine repeat expansions, has proven to be toxic itself by a gain-of-function effect; however, a growing body of evidence indicates that loss of androgen receptor normal function simultaneously contributes to SBMA disease pathology, and, conversely, that normal androgen receptor signaling mediates important trophic effects upon motor neurons. This review considers the trophic requirements of motor neurons, focusing upon the role of known neurotrophic factors in motor neuron disease natural history, and the interactions of androgen receptor signaling pathways with motor neuron disease pathogenesis and progression. A thorough understanding of androgen receptor signaling in motor neurons should provide important inroads toward the development of effective treatments for a variety of devastating motor neuron diseases.
Assuntos

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Receptores Androgênicos / Sobrevivência Celular / Esclerose Lateral Amiotrófica / Neurônios Motores / Degeneração Neural Idioma: En Ano de publicação: 2008 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Receptores Androgênicos / Sobrevivência Celular / Esclerose Lateral Amiotrófica / Neurônios Motores / Degeneração Neural Idioma: En Ano de publicação: 2008 Tipo de documento: Article