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Updated: Feb 20, 2026

Imaging Features of Systemic Sclerosis-Associated Interstitial Lung Disease

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Panorama de la comunicación intercelular y su mecanismo de acción en la enfermedad pulmonar intersticial asociada a

Minghua Huang¹, Ying Zhang², Yuyu Yang³

¹Department of Respiratory and Critical Care Medicine, Shandong Provincial Third Hospital, Shandong University, Jinan, 250132, China.

Rheumatology (Oxford, England)

|February 18, 2026

Resumen

La enfermedad pulmonar intersticial asociada a esclerosis sistémica (EPI-ES) implica una mayor comunicación intercelular a través de pares ligando-receptor específicos como SPP1-CD44/ITGB1. Este estudio revela factores profibróticos clave y sus mecanismos en la patogénesis de la EPI-ES.

Área de la Ciencia:

Medicina Pulmonar
Inmunología
Genómica

Sus antecedentes:

La esclerosis sistémica (ES) es una enfermedad autoinmune crónica con la enfermedad pulmonar intersticial (EPI-ES) como principal causa de mortalidad.
Los factores profibróticos subyacentes y sus mecanismos en la EPI-ES siguen sin comprenderse por completo.

Objetivo del estudio:

Evaluar sistemáticamente los factores profibróticos en la EPI-ES.
Elucidar los mecanismos de acción de estos factores en la patogénesis de la EPI-ES.

Principales métodos:

Integración de la secuenciación de ARN de célula única (scRNA-seq) y la secuenciación de ATAC de célula única (scATAC-seq) en tejidos pulmonares.
CellChat y Monocle3 para el análisis de la comunicación intercelular.
ELISA para niveles séricos de ligandos y modelos animales para la validación.

Principales resultados:

Los pulmones con EPI-ES exhiben una mayor comunicación intercelular, impulsada por macrófagos positivos para SPP1/CCL18 y células mesenquimales positivas para COL1A2 que expresan MIF o MDK.
Se observaron niveles séricos elevados de SPP1, MIF y MDK en pacientes con EPI-ES.
Se identificaron interacciones ligando-receptor específicas (SPP1-CD44/ITGB1, MIF-CD74, MDK-SDC2), que median vías de señalización autocrina y paracrina.

Conclusiones:

Pares clave de ligando-receptor, incluidos SPP1-CD44/ITGB1, MIF-CD74 y MDK-SDC2, son centrales para la comunicación intercelular en la EPI-ES.
Estas interacciones brindan nuevas perspectivas sobre la patogénesis de la EPI-ES.
El estudio ofrece una nueva perspectiva sobre los mecanismos moleculares que impulsan la EPI-ES.

Palabras clave:

Estado epigenético Comunicación intercelular Enfermedad pulmonar intersticial Secuenciación de ARN de célula única Esclerosis sistémica

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