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Proteínas mitocondriales: Mecanismos fisiopatológicos potenciales de la progresión maligna en el CHC
Yicun Liu1, Yawen Shao2, Xudong Zhu3
1Department of Gastroenterology and Hepatology, Nantong Third People's Hospital, Affiliated Nantong Hospital 3 of Nantong University, Nantong, Jiangsu, China.
PloS one
|August 21, 2025
Resumen
Las proteínas mitocondriales se expresan diferencialmente en el carcinoma hepatocelular (HCC), lo que afecta la progresión del tumor. Las proteínas específicas como FDPS, DNA2 y MYO19 muestran una expresión alterada y se correlacionan con un mal pronóstico, ofreciendo objetivos terapéuticos potenciales para el CHC.
Área de la Ciencia:
- En el campo de la oncología
- Biología mitocondrial
- La bioinformática
Sus antecedentes:
- Las mitocondrias juegan un papel crucial en el metabolismo energético del tumor.
- La comprensión de la expresión de proteínas mitocondriales es clave para explorar la patogénesis del carcinoma hepatocelular (HCC).
Objetivo del estudio:
- Para analizar la expresión de 1136 proteínas mitocondriales en HCC utilizando la base de datos Human.MitoCarta3.0.
- Identificar objetivos terapéuticos potenciales y comprender los mecanismos en el desarrollo de HCC.
Principales métodos:
- Se utilizó la base de datos TCGA para analizar 1136 proteínas mitocondriales en HCC.
- Se seleccionaron las ocho proteínas mitocondriales estadísticamente significativas de alta expresión no estudiadas previamente en HCC.
- Expresión proteica validada mediante la reacción en cadena de la polimerasa de transcripción inversa cuantitativa en tiempo real (RT-qPCR) en tejidos y células de HCC.
- Se realizaron análisis de correlación clínica e inmunológica utilizando las bases de datos UALCAN, KM-plot, TIMER2.0 y Sangerbox3.0.
Principales resultados:
- Las proteínas mitocondriales se expresan en los 24 cromosomas, siendo 204 proteínas transmembrana secundarias.
- De las 934 proteínas mitocondriales en TCGA, 706 fueron altamente expresadas y 228 pobremente expresadas en HCC.
- Una expresión significativamente alta de FDPS, DNA2 y MYO19 se correlacionó negativamente con el pronóstico de los pacientes con CHC.
- DNA2 y MYO19 pueden estar involucrados en la regulación de la infiltración de células inmunes en HCC.
Conclusiones:
- 934 de las 1136 proteínas mitocondriales mostraron una expresión diferencial en HCC, destacando su papel biológico significativo.
- Las proteínas mitocondriales funcionales representan mecanismos fisiopatológicos potenciales que impulsan la progresión maligna del CHC.
- Las proteínas mitocondriales son prometedoras como objetivos terapéuticos valiosos para el futuro tratamiento del CHC.
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