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Updated: Sep 10, 2025

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Interacciones huésped-microbioma en la picazón crónica

Tammy Gonzalez1, Sophie M Bilik1, Olivia M Burke1

  • 1Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL 33136, USA.

Journal of clinical medicine
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Resumen

La picazón crónica, a menudo relacionada con desequilibrios del microbioma de la piel, afecta significativamente la calidad de vida. Comprender estos cambios microbianos es clave para desarrollar nuevos tratamientos para enfermedades como el prurigo nodular y el líqueno simple crónico.

Palabras clave:
La IL-31Los canales TRPPéptidos antimicrobianospicazón crónicaLíquen simplex crónicoDisbiosis microbianaLa señalización neuroinmuneReceptores activados por la proteasaPrurigo nodular también conocido como prurigoEl microbioma de la piel

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Área de la Ciencia:

  • Dermatología
  • Microbiología
  • Neuroinmunología

Sus antecedentes:

  • La picazón crónica, que persiste durante más de seis semanas, afecta gravemente la calidad de vida del paciente.
  • El papel del microbioma de la piel en los trastornos crónicos de picazón no atópicos no se comprende bien.
  • La investigación existente se centra principalmente en el sistema inmunológico y los circuitos neuronales en la picazón.

Objetivo del estudio:

  • Revisar la evidencia emergente sobre la contribución del microbioma de la piel al prurito crónico.
  • Para explorar las vías moleculares que vinculan la disbiosis microbiana a la picazón crónica.
  • Para resaltar estrategias terapéuticas dirigidas al microbioma y la neuroinflamación.

Principales métodos:

  • Revisión de la literatura que sintetiza estudios recientes sobre el microbioma de la piel y la picazón crónica.
  • Análisis de las vías moleculares involucradas en la disbiosis microbiana y el prurito.
  • Evaluación de las intervenciones terapéuticas actuales y emergentes.

Principales resultados:

  • La disbiosis microbiana contribuye a la picazón crónica a través de la interrupción de la barrera cutánea, la señalización neuroinmune alterada y la activación directa de los pruriceptores.
  • Se observan cambios específicos del microbioma en el prurigo nodular (PN) y el líquen simple crónico (LSC), independientemente de la dermatitis atópica (AD).
  • Los productos biológicos y las moléculas pequeñas muestran potencial para modular las respuestas inmunes, restaurar el equilibrio microbiano y reducir la neuroinflamación.

Conclusiones:

  • El microbioma de la piel juega un papel importante en la picazón crónica, particularmente en condiciones no atópicas.
  • Un enfoque de biología de sistemas que integra la genómica, la neurobiología y la inmunología es esencial para comprender las interacciones huésped-microbio en la picazón crónica.
  • Las terapias dirigidas que modulan las respuestas inmunológicas y el equilibrio microbiano ofrecen vías prometedoras para tratar el prurito crónico.