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Alsanea M, Alsaleh A, Obeid D, Alhadeq F, Alahideb B, Alhamlan F. Genetic Variability in the E6, E7, and L1 Genes of Human Papillomavirus Types 16 and 18 among Women in Saudi Arabia. Viruses 2022; 15:109. [PMID: 36680149 PMCID: PMC9862970 DOI: 10.3390/v15010109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 12/06/2022] [Accepted: 12/14/2022] [Indexed: 01/03/2023] Open
Abstract
Cervical cancer is the eighth most frequent cancer in Saudi Arabia, and most cases are associated with human papillomavirus (HPV) types 16 and 18. HPV-induced carcinogenesis may be associated with the intra-type variant, genetic mutation, or the continuous expression of viral oncogenes E6 and E7. Infection efficiency and virus antigenicity may be affected by changes in the L1 gene. Thus, this retrospective cohort study analyzed E6, E7, and L1 gene mutations in cervical specimens collected from Saudi women positive for HPV16 or HPV18 infection. HPV16 and HPV18 lineages in these specimens were predominantly from Europe. The L83V mutation in the E6 gene of HPV16 showed sufficient oncogenic potential for progression to cervical cancer. By contrast, the L28F mutation in the E7 gene of HPV16 was associated with a low risk of cervical cancer. Other specific HPV16 and HPV18 mutations were associated with an increased risk of cancer, cancer progression, viral load, and age. Four novel mutations, K53T, K53N, R365P, and K443N, were identified in the L1 gene of HPV16. These findings for HPV16 and HPV18 lineages and mutations in the E6, E7, and L1 genes among women in Saudi Arabia may inform the design and development of effective molecular diagnostic tests and vaccination strategies for the Saudi population.
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Affiliation(s)
- Madain Alsanea
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia
| | - Asma Alsaleh
- Department of Botany and Microbiology, College of Science, King Saud University, Riyadh 11564, Saudi Arabia
| | - Dalia Obeid
- Public Health Laboratories, Public Health Authority, Riyadh 11564, Saudi Arabia
| | - Faten Alhadeq
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia
| | - Basma Alahideb
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia
| | - Fatimah Alhamlan
- Department of Infection and Immunity, King Faisal Specialist Hospital and Research Center, Riyadh 11564, Saudi Arabia
- Department of Pathology and Laboratory Medicine, King Faisal Specialist Hospital and Research Centre, Riyadh 11564, Saudi Arabia
- College of Medicine, Alfaisal University, Riyadh 11564, Saudi Arabia
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Dai MZ, Qiu Y, Di XH, Shi WW, Xu HH. Association of cervical carcinogenesis risk with HPV16 E6 and E7 variants in the Taizhou area, China. BMC Cancer 2021; 21:769. [PMID: 34217247 PMCID: PMC8254333 DOI: 10.1186/s12885-021-08531-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 06/23/2021] [Indexed: 01/17/2023] Open
Abstract
Background Human papillomavirus (HPV) type 16 accounts for a larger share of cervical cancer and has been a major health problem worldwide for decades. The progression of initial infection to cervical cancer has been linked to viral sequence properties; however, the role of HPV16 variants in the risk of cervical carcinogenesis, especially with longitudinal follow-up, is not fully understood in China. Methods We aimed to investigate the genetic variability of HPV16 E6 and E7 oncogenes in isolates from cervical exfoliated cells. Between December 2012 and December 2014, a total of 310 single HPV16-positive samples were selected from women living in the Taizhou area, China. Sequences of all E6 and E7 oncogenes were analysed by PCR-sequencing assay. Detailed sequence comparison, genetic heterogeneity analyses and maximum-likelihood phylogenetic tree construction were performed with BioEdit Sequence Alignment Editor and MEGA X software. Data for cytology tests and histological diagnoses were obtained from our Taizhou Area Study with longitudinal follow-up for at least 5 years. The relationship between HPV16 variants and cervical carcinogenesis risk was analysed by the chi-square test or Fisher’s exact test. Results In this study, we obtained 64 distinct variation patterns with the accession GenBank numbers MT681266-MT681329. Phylogenetic analysis revealed that 98.3% of HPV16 variants belong to lineage A, in which the A4 (Asian) sublineage was dominant (64.8%), followed by A2 (12.1%), A1 (11.4%), and A3 (10.0%). The A4 (Asian) sublineage had a higher risk of CIN2+ than the A1–3 (European) sublineages (OR = 2.69, 95% CI = 1.04–6.97, P < 0.05). Furthermore, nucleotide variation in HPV16 E6 T178G is associated with the development of cervical cancer. Conclusion These data could provide novel insights into the role of HPV16 variants in cervical carcinogenesis risk in China. Supplementary Information The online version contains supplementary material available at 10.1186/s12885-021-08531-y.
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Affiliation(s)
- Mei-Zhen Dai
- Medical Research Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, 317000, China
| | - Yi Qiu
- Medical Research Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, 317000, China
| | - Xing-Hong Di
- Medical Research Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, 317000, China
| | - Wei-Wu Shi
- Medical Research Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, 317000, China
| | - Hui-Hui Xu
- Medical Research Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, 317000, China.
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E6/E7 Variants of Human Papillomavirus 16 Associated with Cervical Carcinoma in Women in Southern Mexico. Pathogens 2021; 10:pathogens10060773. [PMID: 34203053 PMCID: PMC8233793 DOI: 10.3390/pathogens10060773] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/18/2021] [Accepted: 06/18/2021] [Indexed: 11/30/2022] Open
Abstract
Persistent infection with the human papillomavirus 16 (HPV 16) is the cause of half of all cervical carcinomas (CC) cases. Moreover, mutations in the oncoproteins E6 and E7 are associated with CC development. In this study, E6/E7 variants circulating in southern Mexico and their association with CC and its precursor lesions were evaluated. In total, 190 DNA samples were obtained from scrapes and cervical biopsies of women with HPV 16 out of which 61 are from patients with CC, 6 from patients with high-grade squamous intraepithelial lesions (HSIL), 68 from patients with low-grade squamous intraepithelial lesions (LSIL), and 55 from patients without intraepithelial lesions. For all E7 variants found, the E7-C732/C789/G795 variant (with three silent mutations) was associated with the highest risk of CC (odd ratio (OR) = 3.79, 95% confidence interval (CI) = 1.46–9.85). The analysis of E6/E7 bicistron conferred to AA-a*E7-C732/C789/G795 variants revealed the greatest increased risk of CC (OR = 110, 95% CI = 6.04–2001.3), followed by AA-c*E7-C732/C789/G795 and A176/G350*E7-p. These results highlight the importance of analyzing the combinations of E6/E7 variants in HPV 16 infection and suggest that AA-a*E7-C732/C789/G795, AA-c*E7-C732/C789/G795, and A176/G350*E7-p can be useful markers for predicting CC development.
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Zhao J, Zhu J, Guo J, Zhu T, Zhong J, Liu M, Ruan Y, Liao S, Li F. Genetic variability and functional implication of HPV16 from cervical intraepithelial neoplasia in Shanghai women. J Med Virol 2019; 92:372-381. [PMID: 31670402 DOI: 10.1002/jmv.25618] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Accepted: 10/26/2019] [Indexed: 12/23/2022]
Abstract
Human papillomavirus (HPV)16 gene mutation is usually associated with persistent HPV infection and cervical intraepithelial neoplasia (CIN). However, the functional implications of HPV16 mutations remain poorly understood.145 LCR/E6/E7 of the HPV16 isolates were amplified and sequenced, and HPV16 integration status was detected. In total, 89 SNPs (68 in the LCR, 13 in E6, 8 in E7) were discovered, 11 of which were nonsynonymous mutations (8 in E6, 3 in E7). The H85Y and E120D variants in E6 were significantly reduced in the high-grade squamous intraepithelial lesion (HSIL) group compared to the <HSIL group (P = .046 and .005), conversely the N29S in E7(P = .01). Amino acid substitutions (D32N/E, E36Q, H85Y, and E120D in E6 and N29H/S and R77C in E7) were predicted to have an effect on conserved structural and functional residues, and five amino acid substitutions (H85Y, E36Q, I34L, and D32E in E6; R77C in E7) would potentially change the secondary structure. "6329G>T," a potential binding site for TATA-binding protein, is the most common in LCR variants. A4 (Asian) was associated with an increased risk of HSIL compared to A1-3(P = .009). The H85/E120 in E6 and N29 in HPV16 E7 might play a critical role in carcinogenesis by disrupting p53 and Rb degradation due to affecting their interaction, respectively. In a word, the findings in this study provide preventative and therapeutic interventions of HPV16 -related cervical lesions/cancer.
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Affiliation(s)
- Junwei Zhao
- Department of Obstetrics and Gynecology, East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jiacheng Zhu
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen, China.,Maternal and Child Health Research Institute, BGI-Shenzhen, Shenzhen, China
| | - Junhan Guo
- Department of Obstetrics and Gynecology, East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Tailin Zhu
- School of Physics HH Wills Physics Laboratory, University of Bristol, Bristol, UK
| | - Jixing Zhong
- BGI Education Center, University of Chinese Academy of Sciences, Shenzhen, China.,School of Biological Sciences and Medical Engineering, Southeast University, Nanjing, China
| | - Min Liu
- Department of Obstetrics and Gynecology, East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yetian Ruan
- Department of Obstetrics and Gynecology, East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shujie Liao
- Shujie Liao Cancer Biology Research Center, Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Fang Li
- Department of Obstetrics and Gynecology, East Hospital, Tongji University School of Medicine, Shanghai, China
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Choi YJ, Hur SY, Kim TJ, Hong SR, Lee JK, Cho CH, Park KS, Woo JW, Sung YC, Suh YS, Park JS. A Phase II, Prospective, Randomized, Multicenter, Open-Label Study of GX-188E, an HPV DNA Vaccine, in Patients with Cervical Intraepithelial Neoplasia 3. Clin Cancer Res 2019; 26:1616-1623. [PMID: 31727676 DOI: 10.1158/1078-0432.ccr-19-1513] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2019] [Revised: 09/08/2019] [Accepted: 11/11/2019] [Indexed: 11/16/2022]
Abstract
PURPOSE To determine the efficacy of the therapeutic DNA vaccine GX-188E for inducing regression of cervical intraepithelial neoplasia (CIN) 3. PATIENTS AND METHODS We conducted a prospective, randomized, multicenter, open-label, phase II clinical trial of GX-188E in CIN3 patients positive for human papillomavirus (HPV) type 16/18. The primary endpoint was to determine the histopathologic regression to ≤CIN1 at visit seven (V7; 20 weeks after the first GX-188E injection), and an extension study was pursued until visit 8 (V8; 36 weeks after the first GX-188E injection). HPV-sequencing analysis and an ex vivo IFNγ ELISpot assay were performed using the collected cervical biopsy and blood samples from patients. RESULTS In total, 72 patients were enrolled and underwent randomization. Of them, 64 patients were included in per-protocol analysis (V7) and 52 in extension analysis (V8). Our data showed 52% (33/64) of patients at V7 and 67% (35/52) of patients at V8 presented histopathologic regression after receiving the GX-188E injection. We found that 73% (V7) and 77% (V8) of the patients with histologic regression showed HPV clearance. HPV clearance and histopathologic regression were significantly associated at V7 and at V8. Compared with the measurements at V1 (baseline), the patients at V8 with HPV clearance showed significantly higher fold changes in their IFNγ ELISpot responses compared with those without HPV clearance. The HPV sequence analysis revealed that the HPV type 16 E6/E7 variants D25E, V83L, and N29S were inversely associated with histopathologic regression at V8. CONCLUSIONS GX-188E is an effective therapeutic vaccine against a cohort containing only CIN3 patients.
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Affiliation(s)
- Youn Jin Choi
- Department of Obstetrics and Gynecology, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea (South)
- Cancer Research Institute, Department of Medical Lifescience, The Catholic University of Korea, Seoul, Republic of Korea (South)
| | - Soo Young Hur
- Department of Obstetrics and Gynecology, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea (South)
- Cancer Research Institute, Department of Medical Lifescience, The Catholic University of Korea, Seoul, Republic of Korea (South)
| | - Tae-Jin Kim
- Cheil General Hospital, Seoul, Republic of Korea (South)
| | - Sung Ran Hong
- Cheil General Hospital, Seoul, Republic of Korea (South)
| | - Jae Kwan Lee
- Korea University Guro Hospital, Seoul, Republic of Korea (South)
| | - Chi-Heum Cho
- Keimyung University Dongsan Medical Center, Daegu, Republic of Korea (South)
| | - Ki Seok Park
- Genexine, Inc., Seongnam-si, Republic of Korea (South)
| | - Jung Won Woo
- Genexine, Inc., Seongnam-si, Republic of Korea (South)
| | - Young Chul Sung
- Department of Life Sciences, Pohang University of Science and Technology (POSTECH), Gyeonggbuk, Republic of Korea (South)
| | - You Suk Suh
- Genexine, Inc., Seongnam-si, Republic of Korea (South).
| | - Jong Sup Park
- Department of Obstetrics and Gynecology, Seoul St Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea (South).
- Genexine, Inc., Seongnam-si, Republic of Korea (South)
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Screening for HPV infection in exfoliated cervical cells of women from different ethnic groups in Yili, Xinjiang, China. Sci Rep 2019; 9:3468. [PMID: 30837516 PMCID: PMC6400895 DOI: 10.1038/s41598-019-39790-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 01/09/2019] [Indexed: 12/15/2022] Open
Abstract
We investigated the infection status and genotype distribution of human papillomavirus (HPV) in women of different ages and various ethnic groups in the Yili region, Xinjiang, China. We checked the HPV genotypes of 3,445 samples of exfoliated cervical cells using the PCR–reverse dot blot method. The total infection rate of HPV was 25.60% (882/3,445). The ethnic stratification showed that the infection rates were 22.87% (196/857) in Uygur, 21.55% (122/566) in Kazak, and 27.89% (564/2,022) in Han individuals. The most prevalent high-risk genotypes were HPV16, HPV52, and HPV53 in Uygur and Kazak and HPV16, HPV52, and HPV58 in Han ethnic groups. The age stratification showed that the infection rates in Han, Uygur, and Kazak women were up to 40.9% (61/149) in those aged 26–30 years, 41.5% (22/53) in those over 61 years old, and 30.2% (29/96) in those 46–50 years old, respectively. Therefore, HPV infection and HPV genotype distribution varied among the different age groups of the three ethnic groups.
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Yang B, Zhang L, Zhang A, Zhou A, Yuan J, Wang Y, Sun L, Cao H, Zheng W. Variant sublineages of human papillomavirus type 16 predispose women to persistent infection characterized by a sequence analysis of the E6, L1, and LCR regions. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2019; 12:337-343. [PMID: 31933750 PMCID: PMC6943999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/11/2018] [Accepted: 10/22/2018] [Indexed: 06/10/2023]
Abstract
BACKGROUND One of the precursors of cervical cancer is persistent infection with human papillomavirus (HPV), especially high-risk HPV. The aim of this study was to verify the relationship between HPV16 variants and persistent viral infection. METHODS Three-hundred and eighty-six Chinese women who had a low-grade squamous intraepithelial lesion (LSIL) or a lesion below LSIL with normal cellular morphology were selected and enrolled in this study. Flow-through hybridization and gene chip technology were applied to identify the HPV type, and a PCR-sequencing assay was performed to detect HPV16 E6, L1, and long control region (LCR) gene variants. The relationship between HPV16 variants and persistent infection was analyzed using Fisher's exact test. RESULTS In this population, 74.09% of HPV16 isolates belonged to the A4 sublineage, 24.87% to the A1/A2 sublineages, and 3.13% to B1/B2 sublineages. In addition, the A4 sublineage T178G (P<0.001) and the A1/A2 sublineages T350G and A442C (P<0.001) were associated with persistent HPV16 infection. L1 and LCR variants were found to be common in this population. Nonetheless, no significant relation was identified between the L1 or LCR variants and the persistence of infection (P>0.05). CONCLUSION HPV16 E6 variants in the Shanghai Pudong District mainly belong to the A4 sublineage, and detection of the specific HPV E6 T178G genotype may be considered a risk factor for viral persistence and progression to other cervical diseases.
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Affiliation(s)
- Binlie Yang
- Department of Obstetrics and Gynecology, Shanghai Pudong New Area People’s HospitalShanghai, China
| | - Lei Zhang
- Department of Obstetrics and Gynecology, Shanghai Pudong New Area People’s HospitalShanghai, China
| | - Ai Zhang
- Department of Obstetrics and Gynecology, Shanghai Pudong New Area People’s HospitalShanghai, China
| | - Aizhi Zhou
- Department of Obstetrics and Gynecology, Shanghai Pudong New Area People’s HospitalShanghai, China
| | - Jieyan Yuan
- Department of Obstetrics and Gynecology, Shanghai Pudong New Area People’s HospitalShanghai, China
| | - Yuhua Wang
- Department of Obstetrics and Gynecology, Shanghai Pudong New Area People’s HospitalShanghai, China
| | - Liyan Sun
- Department of Obstetrics and Gynecology, Shanghai Pudong New Area People’s HospitalShanghai, China
| | - Huimin Cao
- Department of Obstetrics and Gynecology, Shanghai Pudong New Area People’s HospitalShanghai, China
| | - Wenxin Zheng
- Department of Pathology, University of Texas Southwestern Medical Center DallasTX, USA
- Department of Obstetrics and Gynecology, University of Texas Southwestern Medical Center DallasTX, USA
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