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A Comparative Approach to Characterize the Landscape of Host-Pathogen Protein-Protein Interactions
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Cellular Functions of HPV16 E5 Oncoprotein during Oncogenic Transformation
Lourdes Gutierrez-Xicotencatl1, Adolfo Pedroza-Saavedra2, Lilia Chihu-Amparan2
1Centro de Investigación Sobre Enfermedades Infecciosas, Instituto Nacional de Salud Pública, Cuernavaca, Morelos, Mexico. mlxico@insp.mx.
Molecular Cancer Research : MCR
|October 27, 2020
Summary
The human papillomavirus (HPV) E5 oncoprotein drives early cervical cancer development by interacting with cellular proteins. Targeting E5 offers a promising new strategy for treating early-stage cervical cancer.
Area of Science:
- Oncology
- Virology
- Molecular Biology
Background:
- Human papillomavirus (HPV) is the primary cause of cervical cancer.
- High-risk HPV types 16 and 18 are prevalent globally.
- While HPV E6 and E7 oncoproteins are well-studied, the role of HPV16 E5 (16E5) in transformation is less defined.
Purpose of the Study:
- To review the biochemical characteristics and functions of the HPV E5 oncoprotein.
- To elucidate the mechanisms of 16E5's oncogenic activity, particularly its interactions with growth factor receptors.
- To explore the therapeutic potential of targeting HPV E5 in early cervical carcinogenesis.
Main Methods:
- Literature review focusing on HPV E5 oncoprotein.
- Analysis of E5's association with growth factor receptors and other cellular proteins.
- Summary of recent research on E5 as a therapeutic target.
Main Results:
- HPV E5 is lost during viral DNA integration, suggesting early-stage involvement in transformation.
- E5 modulates cellular processes including proliferation, differentiation, apoptosis, survival, adhesion, migration, and invasion.
- E5's interactions with cellular proteins are key to its oncogenic functions.
Conclusions:
- Understanding HPV E5 biology is crucial for comprehending early cervical carcinogenesis.
- Targeting the HPV E5 oncoprotein presents a novel therapeutic avenue for early-stage cervical cancer treatment.
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