Paradoxical effects of DNA tumor virus oncogenes on epithelium-derived tumor cell fate during tumor progression and chemotherapy response.
Signal Transduct Target Ther
; 6(1): 408, 2021 11 26.
Article
en En
| MEDLINE
| ID: mdl-34836940
Epstein-Barr virus (EBV) and human papillomavirus (HPV) infection is the risk factors for nasopharyngeal carcinoma and cervical carcinoma, respectively. However, clinical analyses demonstrate that EBV or HPV is associated with improved response of patients, although underlying mechanism remains unclear. Here, we reported that the oncoproteins of DNA viruses, such as LMP1 of EBV and E7 of HPV, inhibit PERK activity in cancer cells via the interaction of the viral oncoproteins with PERK through a conserved motif. Inhibition of PERK led to increased level of reactive oxygen species (ROS) that promoted tumor and enhanced the efficacy of chemotherapy in vivo. Consistently, disruption of viral oncoprotein-PERK interactions attenuated tumor growth and chemotherapy in both cancer cells and tumor-bearing mouse models. Our findings uncovered a paradoxical effect of DNA tumor virus oncoproteins on tumors and highlighted that targeting PERK might be an attractive strategy for the treatment of NPC and cervical carcinoma.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Papillomaviridae
/
Neoplasias del Cuello Uterino
/
Proteínas Oncogénicas Virales
/
Proteínas de la Matriz Viral
/
Neoplasias Nasofaríngeas
/
Herpesvirus Humano 4
/
Infecciones por Virus de Epstein-Barr
/
Infecciones por Papillomavirus
/
Carcinoma Nasofaríngeo
/
Antineoplásicos
Tipo de estudio:
Prognostic_studies
/
Risk_factors_studies
Límite:
Animals
/
Female
/
Humans
Idioma:
En
Revista:
Signal Transduct Target Ther
Año:
2021
Tipo del documento:
Article
País de afiliación:
China
Pais de publicación:
Reino Unido