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Cáncer gástrico difuso hereditario en progreso: lecciones comparativas del síndrome de Lynch
Joana Pereira1,2,3, Luísa Carvalho1,2,3, Soraia Melo1,2,4
1i3S - Instituto de Investigação e Inovação em Saúde, University of Porto, R. Alfredo Allen 208, 4200-135, Porto, Portugal.
European journal of human genetics : EJHG
|December 22, 2025
Resumen
El cáncer gástrico difuso hereditario (HDGC) y el síndrome de Lynch comparten similitudes genéticas, pero la investigación de HDGC está rezagada. La aplicación del síndrome de Lynch
Área de la Ciencia:
- Genética y Oncología
- Síndromes de Cáncer Hereditario
Sus antecedentes:
- El cáncer gástrico difuso hereditario (CGDH) y el síndrome de Lynch son síndromes hereditarios dominantes de predisposición al cáncer.
- El CGDH implica variantes de CDH1/CTNNA1, lo que aumenta los riesgos de cáncer gástrico y de mama.
- El síndrome de Lynch, relacionado con genes de reparación de desajustes, predispone a varios tipos de cáncer, incluidos el colorrectal y el endometrial.
Objetivo del estudio:
- Establecer una analogía entre el CGDH y el Síndrome de Lynch para avanzar en la comprensión del CGDH.
- Aprovechar el siglo de investigación sobre el Síndrome de Lynch para abordar las lagunas de conocimiento del CGDH.
- Mejorar la identificación de genes del CGDH, la interpretación de variantes y las estrategias de vigilancia.
Principales métodos:
- Análisis comparativo del origen genético, los efectos de las variantes y los resultados clínicos.
- Revisión de la literatura y síntesis de la investigación existente sobre ambos síndromes.
- Postulación de la aplicación de los marcos de investigación del síndrome de Lynch al CGDH.
Principales resultados:
- Existen disparidades significativas en la comprensión molecular y el manejo de pacientes con Cáncer Gástrico Difuso Hereditario (CGDH) en comparación con el Síndrome de Lynch.
- La investigación sobre el CGDH es menos madura que la investigación sobre el Síndrome de Lynch, que cuenta con más de un siglo de estudio.
- Una analogía destaca las complejidades compartidas y el potencial de aprendizaje entre síndromes.
Conclusiones:
- Las lecciones de la investigación del síndrome de Lynch pueden acelerar el descubrimiento de la etiología del CGDH.
- Este enfoque puede identificar nuevos genes candidatos, refinar la interpretación de variantes, explicar la heterogeneidad y mejorar la vigilancia del CGDH.
- Los hallazgos tienen como objetivo impactar el manejo clínico y la investigación futura del CGDH.
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