Envolvimento da angiopoietina-2 na nefropatia falciforme: uma revisão narrativa

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Eliziane Souza Nascimento
Romélia Pinheiro Gonçalves Lemes

Resumo

Objetivo: Demonstrar, através da literatura científica existente, o envolvimento da angiopoietina-2 no desenvolvimento da nefropatia falciforme. Revisão bibliográfica: A anemia falciforme (AF) é uma hemoglobinopatia hereditária caracterizada pela homozigose da hemoglobina S (HbS) e está associada a complicações vasculares e inflamatórias que podem comprometer múltiplos órgãos, incluindo os rins. O desenvolvimento de nefropatia falciforme (NF) em pacientes com AF é multifatorial, envolvendo mecanismos como hemólise intravascular, eventos vaso-oclusivos, lesões de isquemia-reperfusão, disfunção endotelial e estado pró-angiogênico. A Angiopoietina-2 (Ang-2) atua na angiogênese e tem sido descrita como um biomarcador da disfunção endotelial e na progressão da nefropatia em diferentes etiologias, estando envolvida na regulação da permeabilidade vascular e na ativação do processo inflamatório. Considerações finais: No contexto da AF, a hipóxia resultante dos eventos de vaso-oclusão e hemólise intravascular, induzem a liberação de fatores pró-angiogênicos, como a Ang-2, agravando a lesão renal por meio do aumento da permeabilidade vascular. Além disso, diversos estudos envolvendo a Ang-2 como alvo terapêutico em doenças envolvendo a angiogênese anormal estão em desenvolvimento. Abrindo margem para um possível manejo terapêutico das complicações causadas pelo estado pró-angiogênico nos pacientes com AF, incluindo a NF.

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Como Citar
NascimentoE. S., & LemesR. P. G. (2025). Envolvimento da angiopoietina-2 na nefropatia falciforme: uma revisão narrativa. Revista Eletrônica Acervo Saúde, 25(6), e20364. https://doi.org/10.25248/reas.e20364.2025
Seção
Revisão Bibliográfica

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