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Eje activina A/folistatina en enfermedades de las vías respiratorias y su asociación con exacerbaciones recurrentes

Argyro Chatziantoniou^1,2, Konstantinos Karagiannis^1,2, Alexander G Mathioudakis^3,4

¹Department of Respiratory Medicine, University Hospital of Heraklion, Heraklion, Greece.

In vivo (Athens, Greece)

|August 28, 2025

Resumen

La dinámica de Activin A difiere en el esputo y el suero durante las exacerbaciones de la enfermedad de las vías respiratorias. El aumento de la Activina A en el esputo en pacientes con EPOC con exacerbaciones recurrentes sugiere un vínculo con la inflamación sostenida y la actividad de la enfermedad.

Área de la Ciencia:

Medicina de las vías respiratorias
Inmunología
La bioquímica

Sus antecedentes:

Las enfermedades crónicas de las vías respiratorias (EPOC, asma, ACO) implican una inflamación compleja.
Activin A, un miembro de la superfamilia TGF-β, está implicado en estas enfermedades.
Existen datos limitados sobre el papel de Activin A durante las exacerbaciones.

Objetivo del estudio:

Investigar la dinámica de Activin A en el esputo y el suero durante las exacerbaciones agudas y la convalecencia.
Explorar el papel de Activin A en el asma, la EPOC y la superposición de la EPOC por asma (ACO).

Principales métodos:

Estudio prospectivo de 53 pacientes (≥14 años) hospitalizados por exacerbaciones.
Muestras de esputo y suero recogidas en el momento de la admisión, el alta y 1 y 4 meses después de la exacerbación.
Los niveles de proteína activina A cuantificados por ELISA; se ha examinado la cinética.

Principales resultados:

La Activina A del esputo aumentó durante las exacerbaciones y disminuyó durante la convalecencia.
La Activina A en suero mostró un patrón inverso: menor durante las exacerbaciones, aumentando durante los períodos estables.
Los pacientes con EPOC con exacerbaciones recurrentes presentaron niveles persistentemente altos de Activina A en el esputo.

Conclusiones:

Los hallazgos revelan una regulación específica de la Activina A en las enfermedades crónicas de las vías respiratorias.
Activin A muestra potencial como biomarcador para la actividad de la enfermedad.
La activina A puede indicar un riesgo de exacerbación, especialmente en la EPOC.

Palabras clave:

Oficina de las Naciones Unidas Activina A y sus derivados Enfermedad pulmonar obstructiva crónica el asma Exacerbaciones

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