Department of Infectious Diseases Biology, National Institute for Research in Reproductive Health, J.M. Street, Parel, Mumbai, 400012, India.
J Biomed Sci. 2019 Apr 23;26(1):28. doi: 10.1186/s12929-019-0520-2.
Cervical cancer is the fourth most frequent cancer in women worldwide and a major cause of mortality in developing countries. Persistent infection with high-risk human papillomavirus (HPV) is a necessary cause for the development of cervical cancer. In addition, genetic and epigenetic alterations in host cell genes are crucial for progression of cervical precancerous lesions to invasive cancer. Although much progress has been made in understanding the life cycle of HPV and it's role in the development of cervical cancer, there is still a critical need for accurate surveillance strategies and targeted therapeutic options to eradicate these cancers in patients. Given the widespread nature of HPV infection and the type specificity of currently available HPV vaccines, it is crucial that molecular details of the natural history of HPV infection as well as the biological activities of viral oncoproteins be elucidated. A better understanding of the mechanisms involved in oncogenesis can provide novel insights and opportunities for designing effective therapeutic approaches against HPV-associated malignancies. In this review, we briefly summarize epigenetic alterations and events that cause alterations in host genomes inducing cell cycle deregulation, aberrant proliferation and genomic instability contributing to tumorigenesis.
宫颈癌是全球女性中第四常见的癌症,也是发展中国家死亡的主要原因之一。高危型人乳头瘤病毒(HPV)持续感染是宫颈癌发展的必要原因。此外,宿主细胞基因中的遗传和表观遗传改变对于宫颈癌前病变进展为浸润性癌症至关重要。尽管在理解 HPV 的生命周期及其在宫颈癌发展中的作用方面已经取得了很大进展,但仍然需要准确的监测策略和靶向治疗选择,以在患者中消除这些癌症。鉴于 HPV 感染的广泛性质和目前可用 HPV 疫苗的型特异性,阐明 HPV 感染的自然史的分子细节以及病毒致癌蛋白的生物学活性至关重要。对致癌机制的深入了解可以为设计针对 HPV 相关恶性肿瘤的有效治疗方法提供新的见解和机会。在这篇综述中,我们简要总结了导致宿主基因组改变的表观遗传改变和事件,这些改变导致细胞周期失调、异常增殖和基因组不稳定性,从而促进肿瘤发生。