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Un estudio trans-ómicos de interacción gen-tabaquismo en el cáncer de pulmón basado en datos de consorcio

Ning Xie¹, Xiaowen Xu¹, Yanru Wang¹

¹Department of Biostatistics, Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, China.

American journal of respiratory and critical care medicine

|February 25, 2026

Resumen

Este estudio identificó ocho biomarcadores que interactúan con el tabaquismo para afectar el riesgo de cáncer de pulmón. Una puntuación molecular modificadora (MMS) estratificó eficazmente a los fumadores según su riesgo de cáncer de pulmón.

Área de la Ciencia:

Genética
Biología Molecular
Investigación sobre el Cáncer

Sus antecedentes:

Los rasgos moleculares predichos genéticamente ofrecen un método rentable para la identificación de biomarcadores y la comprensión de los mecanismos biológicos.
Esta investigación amplía este marco para investigar las interacciones gen-tabaquismo en la susceptibilidad al cáncer de pulmón.

Objetivo del estudio:

Identificar interacciones trans-ómicas gen-tabaquismo que influyen en el riesgo de cáncer de pulmón.
Evaluar cómo los biomarcadores identificados modifican los efectos del tabaquismo en el cáncer de pulmón.

Principales métodos:

Se realizó un estudio trans-ómico de interacción gen-tabaquismo que integró datos genotípicos a gran escala de múltiples consorcios (ILCCO-OncoArray, TRICL, PLCO, UKB).
Se integraron datos de rasgos cuantitativos de loci moleculares (xQTL) a nivel de resumen en los niveles de metilación del ADN, expresión génica, proteínas y metabolitos.
Se desarrolló una puntuación molecular modificadora (MMS) utilizando biomarcadores identificados para delinear patrones de interacción gen-tabaquismo y estratificar el riesgo de cáncer de pulmón en fumadores.

Principales resultados:

Se identificaron ocho biomarcadores, incluidos sitios CpG y el gen RP11-326C3.14, que demostraron interacciones significativas con el tabaquismo.
La MMS desarrollada estratificó eficazmente el riesgo de cáncer de pulmón en fumadores basándose en datos integrados de biomarcadores.
El análisis trans-ómico implicó al gen NELFE en las vías de carcinogénesis relacionadas con el tabaquismo, revelando vínculos funcionales entre las capas moleculares.

Conclusiones:

El marco xWAS (estudio de asociación del genoma completo de ascendencia cruzada) utilizado facilita el descubrimiento sistemático de interacciones trans-ómicas gen-ambiente.
La MMS demuestra ser eficaz para delinear patrones de interacción y estratificar el riesgo para fumadores.
Se ha lanzado una plataforma en línea gratuita, LungCancer-xWAS-GxE, para proporcionar acceso a estos hallazgos.

Palabras clave:

interacción gen-tabaquismo estudio de asociación del genoma completo cáncer de pulmón trans-ómicos xWAS

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