Data/hora: 12/06/2024 13:36:48

Provedor de dados: | 55
País: | Brazil
Título: | Involvement of nitric oxide and its up/down stream molecules in the immunity against parasitic infections
Autores: | Nahrevanian,Hossein.
Data: | 2009-12-01
Ano: | 2009
Palavras-chave: | INOS; Nitric oxide; NO; Immunity; Helminth; Parasite; Protozoa.
Resumo: | Nitric oxide (NO) is a potent mediator with diverse roles in regulating cellular functions and signaling pathways. The NO synthase (NOS) enzyme family consists of three major isoforms, which convey variety of messages between cells, including signals for vasorelaxation, neurotransmission and cytotoxicity. This family of enzymes are generally classified as neuronal NOS (nNOS), endothelial NOS (eNOS) and inducible NOS (iNOS). Increased levels of NO are induced from iNOS during infection; while eNOS and nNOS may be produced at the baseline in normal conditions. An association of some key cytokines appears to be essential for NOS gene regulation in the immunity of infections. Accumulating evidence indicates that parasitic diseases are commonly associated with elevated production of NO. NO plays a role in the immunoregulation and it is implicated in the host non-specific defence in a variety of infections. Nevertheless, the functional role of NO and NOS isoforms in the immune responses of host against the majority of parasites is still highly controversial. In the present review, the role of parasitic infections will be discussed in the controversy related to the NO production and iNOS gene expression in different parasites and a variety of experimental models.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702009000600010
Editor: | Brazilian Society of Infectious Diseases
Relação: | 10.1590/S1413-86702009000600010
Formato: | text/html
Fonte: | Brazilian Journal of Infectious Diseases  v.13 n.6 2009
Fonte: | info:eu-repo/semantics/openAccess