单位:[1]Cancer Biology Research Center,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology (HUST),Wuhan,Hubei,China.华中科技大学同济医学院附属同济医院肿瘤生物医学中心[2]Department of Neurology,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology (HUST),Wuhan,Hubei,China.华中科技大学同济医学院附属同济医院神经内科神经科[3]Center for Reproductive Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong, China.北京大学深圳医院深圳医学信息中心
Persistent HPV infection is recognized as the main etiologic factor for cervical cancer. HPV expresses the oncoproteins E6 and E7, both of which play key roles in maintaining viral infection and promoting carcinogenesis. While siRNA-mediated targeting of E6 and E7 transcripts temporarily induces apoptosis in HPV-positive cells, it does not eliminate viral DNA within the host genome, which can harbor escape mutants. Here, we demonstrated that specifically targeting E6 and E7 within host DNA with transcription activator-like effector nucleases (TALENs) induces apoptosis, inhibits growth, and reduces tumorigenicity in HPV-positive cell lines. TALEN treatment efficiently disrupted E6 and E7 oncogenes, leading to the restoration of host tumor suppressors p53 and retinoblastoma 1 (RB1), which are targeted by E6 and E7, respectively. In the K14-HPV16 transgenic mouse model of HPV-driven neoplasms, direct cervical application of HPV16-E7-targeted TALENs effectively mutated the E7 oncogene, reduced viral DNA load, and restored RB1 function and downstream targets transcription factor E2F1 and cycling-dependent kinase 2 (CDK2), thereby reversing the malignant phenotype. Together, the results from our study suggest that TALENs have potential as a therapeutic strategy for HPV infection and related cervical malignancy.
基金:
National Development Program (973 Program) For the Key Basic Research of China [2015CB553903, 2013CB911304, 2009CB521806]; National Natural Science Funding of ChinaNational Natural Science Foundation of China [81372805, 81090414, 81301126, 81402158, 81471508, 81101971, 81402159, 81272859, 81372801, 81302266, 81372806, 81370469, 81403166, 81172466, 81101964, 81172468, 81230052, 81230038]
第一作者单位:[1]Cancer Biology Research Center,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology (HUST),Wuhan,Hubei,China.
共同第一作者:
通讯作者:
通讯机构:[1]Cancer Biology Research Center,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology (HUST),Wuhan,Hubei,China.[*1]Cancer Biology Research Center,Tongji Hospital,Tongji Medical College,Huazhong University of Science and Technology,1095 Jiefang Road,Wuhan 430030,Hubei,China
推荐引用方式(GB/T 7714):
Zheng Hu,Wencheng Ding,Da Zhu,et al.TALEN-mediated targeting of HPV oncogenes ameliorates HPV-related cervical malignancy[J].JOURNAL OF CLINICAL INVESTIGATION.2015,125(1):425-436.doi:10.1172/JCI78206.
APA:
Zheng Hu,Wencheng Ding,Da Zhu,Lan Yu,Xiaohui Jiang...&Hui Wang.(2015).TALEN-mediated targeting of HPV oncogenes ameliorates HPV-related cervical malignancy.JOURNAL OF CLINICAL INVESTIGATION,125,(1)
MLA:
Zheng Hu,et al."TALEN-mediated targeting of HPV oncogenes ameliorates HPV-related cervical malignancy".JOURNAL OF CLINICAL INVESTIGATION 125..1(2015):425-436