Marcadores moleculares relacionados con la quimiotaxis que subyacen al trastorno inmunológico de la psoriasis y la colitis ulcerosa: análisis y verificación preliminares
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Qi Zhang1, Xia Qin, Daiwen Liang
1Department of Dermatology, The First Affiliated Hospital of Guangxi Medical University, Nanning, China.
Medicine
|August 27, 2025
Resumen
La psoriasis y la colitis ulcerosa comparten vías moleculares comunes que involucran la activación de las células inmunes y la señalización de quimiocinas. Los macrófagos que expresan STAT1 pueden conducir estas anomalías compartidas, lo que sugiere posibles biomarcadores para el riesgo de comorbilidad.
Área de la Ciencia:
- Inmunología
- La genética
- Dermatología
Sus antecedentes:
- La psoriasis (PSO) y la colitis ulcerosa (UC) pueden ocurrir simultáneamente en los pacientes.
- Los mecanismos moleculares subyacentes a la coexistencia de PSO y UC no se comprenden completamente.
Objetivo del estudio:
- Identificar los genes de riesgo compartido y las vías moleculares en PSO y UC utilizando bioinformática.
- Explorar la patogénesis de la ocurrencia simultánea de OPS y UC.
Principales métodos:
- Análisis diferencial de la expresión génica de los conjuntos de datos PSO y UC.
- Construcción de la interacción proteína-proteína y las redes reguladoras del ARNm-TF.
- Validación de los genes clave (STAT1, CXCL1, CCL20, MMP9) mediante qRT-PCR, inmunohistoquímica y inmunofluorescencia.
Principales resultados:
- Se identificaron 30 genes de expresión diferencial (DEG) comunes a PSO y UC, enriquecidos en la activación de células inmunes y la señalización de quimiocinas.
- Se identificaron 9 genes centrales y 6 factores de transcripción (TF) a través de análisis de redes.
- Se confirmó una expresión elevada de STAT1 en los macrófagos CD68+ dentro de las lesiones de PSO y UC, junto con un aumento de los niveles de CXCL1, CCL20 y MMP9.
Conclusiones:
- PSO y UC comparten anormalidades de quimiocinas, incluidos CCL20, CXCL1 y MMP9 elevados.
- La infiltración de macrófagos que expresan STAT1 está potencialmente relacionada con estas características moleculares compartidas.
- Estas características moleculares compartidas pueden servir como biomarcadores para evaluar el riesgo de comorbilidad.
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