Related Experiment Video
Updated: Jun 10, 2026

Use of Interferon-γ Enzyme-linked Immunospot Assay to Characterize Novel T-cell Epitopes of Human Papillomavirus
Published on: March 8, 2012
Human papillomavirus type 16 E5 oncoprotein as a new target for cervical cancer treatment
Mi-Kyung Kim1, Hee Seung Kim, Su-Hyeong Kim
1Department of Obstetrics and Gynecology, Seoul National University College of Medicine, Seoul, Republic of Korea.
Abstract:
Human papillomavirus (HPV) infection is considered to be the necessary cause of cervical cancer. E6 and E7 oncoproteins of HPV have been known to play major roles in malignant transformation of cervical cells, inhibiting the tumor suppressors p53 and Rb. However, the role of E5 oncoprotein has been relatively less defined. HPV 16 E5 is a hydrophobic membrane-bound protein which associates with the Golgi apparatus, endoplasmic reticulum and perinuclear membrane. Accumulating evidences have suggested that E5 oncoprotein may also contribute to cervical carcinogenesis through modulating cellular signaling pathways in addition to augmenting the immortalization potential of E6 and E7. Multiple mechanisms, including activation of EGFR or inflammatory cell signaling pathway, have been implicated in malignant transformation by HPV 16 E5. Therefore, targeting E5 may be a rational approach for chemoprevention and treatment of cervical cancer, and understanding its oncogenic processes may help us to design novel therapeutic strategies. In this review, we discussed the roles of HPV 16 E5 in cervical carcinogenesis, altering several cellular signaling pathways involved in cell proliferation, angiogenesis and apoptosis.
Insights
Human papillomavirus (HPV) oncoprotein E5 contributes to cervical cancer by altering cell signaling pathways. Targeting HPV 16 E5 offers a potential strategy for cervical cancer chemoprevention and treatment.
Area of Science:
- Oncology
- Virology
- Molecular Biology
Background:
- Human papillomavirus (HPV) is the primary cause of cervical cancer.
- HPV E6 and E7 oncoproteins are known to induce malignant transformation by inhibiting p53 and Rb tumor suppressors.
- The oncogenic role of HPV E5 oncoprotein in cervical carcinogenesis is less understood.
Purpose of the Study:
- To review the multifaceted roles of HPV 16 E5 in cervical cancer development.
- To elucidate the mechanisms by which HPV 16 E5 modulates cellular signaling pathways.
- To highlight the therapeutic potential of targeting HPV 16 E5.
Main Methods:
- Literature review of studies investigating HPV 16 E5 function.
- Analysis of evidence linking HPV 16 E5 to cellular signaling pathways.
- Discussion of HPV 16 E5's contribution to cell proliferation, angiogenesis, and apoptosis.
Main Results:
- HPV 16 E5, a hydrophobic membrane protein, associates with cellular organelles.
- Evidence suggests HPV 16 E5 contributes to cervical carcinogenesis by modulating signaling pathways, including EGFR and inflammatory pathways.
- HPV 16 E5 augments the transforming potential of E6 and E7.
Conclusions:
- HPV 16 E5 plays a significant role in cervical carcinogenesis.
- Understanding HPV 16 E5's oncogenic mechanisms is crucial for developing novel therapeutic strategies.
- Targeting HPV 16 E5 presents a promising avenue for cervical cancer chemoprevention and treatment.
Related Concept Videos
Cancer Vaccines
Cancer vaccines come in two categories: preventive (prophylactic) and treatment (active). Preventive vaccines, such as the Human Papillomavirus (HPV) vaccine, protect against viruses that cause certain...
Mitogens and the Cell Cycle
Treatment Resistent Cancers
Mechanisms of Retrovirus-induced Cancers
Mechanisms of Retrovirus-induced Cancers
Tumor Immunotherapy
