Enfoque terapéutico de la hemoglobinuria paroxística nocturna

Palabras clave: hemoglobinuria paroxística nocturna, PIG-A, glicosilfosfatidilinositol, tratamiento

Resumen

La hemoglobinuria paroxística nocturna (HPN) es una enfermedad poco frecuente, en la que los glóbulos rojos se destruyen prematuramente. Las personas afectadas carecen del gen PIG-A, el cual es muy importante para que el glicosilfosfatidilinositol (GPI) permita la adhesión de ciertas proteínas a las células sanguíneas. Sin PIG-A, las proteínas involucradas no pueden proteger a las células de los componentes del complemento en la sangre, lo que lleva a la destrucción de los glóbulos rojos. En la antigüedad el tratamiento de la HPN era paliativo, con una supervivencia media de 15-20 años y la trombosis como principal causa de muerte. Las medidas terapéuticas incluían corticosteroides, terapia con andrógenos, transfusiones de glóbulos rojos y terapia anticoagulante, aunque con efectividad limitada y riesgos de eventos adversos. El trasplante alogénico de células madre era el único tratamiento curativo, generalmente reservado para pacientes jóvenes con falla de médula ósea. La introducción de inhibidores del complemento ha incrementado la tasa de supervivencia, acercándola a la de poblaciones sanas de igual sexo y edad, y está indicado para casos de HPN hemolítica clásica con complicaciones severas.

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Publicado
2024-11-22
Cómo citar
Saquicela Guayacondo, D. E., Espinosa Feijoó, K. L., San Wong Pazmiño, A. N., Argote Veliz, G. A., Castro García, L. A., & Vásconez Montalvo, V. A. (2024). Enfoque terapéutico de la hemoglobinuria paroxística nocturna. Ciencia Latina Revista Científica Multidisciplinar, 8(5), 9976-9997. https://doi.org/10.37811/cl_rcm.v8i5.14367
Sección
Ciencias de la Salud