scholarly journals HPV infection associated DNA damage correlated with cervical precancerous lesions and cancer in the highest area of cervical cancer mortality, Longnan, China

2019 ◽  
Vol Volume 11 ◽  
pp. 7197-7210 ◽  
Author(s):  
Jin Zhao ◽  
Zhong Guo ◽  
Qiang Wang ◽  
Tianbin Si ◽  
Shuyan Pei ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Dna Damage ◽  
Cancer Mortality ◽  
Precancerous Lesions ◽  
Hpv Infection ◽  
Cervical Precancerous Lesions ◽  
Cervical Cancer Mortality

scholarly journals Preliminary Study on the Expression of Testin, p16 and Ki-67 in the Cervical Intraepithelial Neoplasia

Biomedicines ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1010
Author(s):  
Aneta Popiel ◽  
Aleksandra Piotrowska ◽  
Patrycja Sputa-Grzegrzolka ◽  
Beata Smolarz ◽  
Hanna Romanowicz ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Precancerous Lesions ◽  
Clinical Stage ◽  
Intraepithelial Neoplasia ◽  
Hpv Infection ◽  
Control Group ◽  
Ki 67 ◽  
Cervical Precancerous Lesions ◽  
P16 Expression

Cervical cancer is one of the most common malignant cancers in women worldwide. The 5-year survival rate is 65%; nevertheless, it depends on race, age, and clinical stage. In the oncogenesis of cervical cancer, persistent HPV infection plays a pivotal role. It disrupts the expression of key proteins as Ki-67, p16, involved in regulating the cell cycle. This study aimed to identify the potential role of testin in the diagnosis of cervical precancerous lesions (CIN). The study was performed on selected archival paraffin-embedded specimens of CIN1 (31), CIN2 (75), and CIN3 (123). Moderate positive correlation was observed between testin and Ki-67 as well as testin and p16 expression in all dysplastic lesions (r = 0.4209, r = 0.5681; p < 0.0001 for both). Statistical analysis showed stronger expression of the testin in dysplastic lesions vs. control group (p < 0.0001); moreover, expression was significantly higher in HSIL than LSIL group (p < 0.0024). In addition, a significantly stronger expression of testin was observed in CIN3 vs. CIN1 and CIN3 vs. CIN2. In our study, expression of Ki-67, p16, and testin increased gradually as the lesion progressed from LSIL to HSIL. The three markers complemented each other effectively, which may improve test sensitivity and specificity when used jointly.

scholarly journals The application of CRISPR/Cas9 system in cervical carcinogenesis

2021 ◽  
Author(s):  
Chun Gao ◽  
Ping Wu ◽  
Lan Yu ◽  
Liting Liu ◽  
Hong Liu ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
High Risk ◽  
Transgenic Mice ◽  
Cell Line ◽  
Cell Lines ◽  
Cancer Cell ◽  
Precancerous Lesions ◽  
Cancer Cell Lines ◽  
Cervical Carcinogenesis ◽  
Cervical Precancerous Lesions

AbstractIntegration of high-risk HPV genomes into cellular chromatin has been confirmed to promote cervical carcinogenesis, with HPV16 being the most prevalent high-risk type. Herein, we evaluated the therapeutic effect of the CRISPR/Cas9 system in cervical carcinogenesis, especially for cervical precancerous lesions. In cervical cancer/pre-cancer cell lines, we transfected the HPV16 E7 targeted CRISPR/Cas9, TALEN, ZFN plasmids, respectively. Compared to previous established ZFN and TALEN systems, CRISPR/Cas9 has shown comparable efficiency and specificity in inhibiting cell growth and colony formation and inducing apoptosis in cervical cancer/pre-cancer cell lines, which seemed to be more pronounced in the S12 cell line derived from the low-grade cervical lesion. Furthermore, in xenograft formation assays, CRISPR/Cas9 inhibited tumor formation of the S12 cell line in vivo and affected the corresponding protein expression. In the K14-HPV16 transgenic mice model of HPV-driven spontaneous cervical carcinogenesis, cervical application of CRISPR/Cas9 treatment caused mutations of the E7 gene and restored the expression of RB, E2F1, and CDK2, thereby reversing the cervical carcinogenesis phenotype. In this study, we have demonstrated that CRISPR/Cas9 targeting HPV16 E7 could effectively revert the HPV-related cervical carcinogenesis in vitro, as well as in K14-HPV16 transgenic mice, which has shown great potential in clinical treatment for cervical precancerous lesions.

scholarly journals Raman spectroscopic study of cervical precancerous lesions and cervical cancer

2021 ◽  
Author(s):  
Jing Wang ◽  
Cheng-Xia Zheng ◽  
Cai-Ling Ma ◽  
Xiang-Xiang Zheng ◽  
Xiao-Yi Lv ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Squamous Cell Carcinoma ◽  
Raman Spectra ◽  
Precancerous Lesions ◽  
Cervical Squamous Cell Carcinoma ◽  
Cervical Lesions ◽  
Cin Iii ◽  
Cervical Precancerous Lesions ◽  
Biochemical Components ◽  
The Difference

AbstractEarly detection of cervical lesions, accurate diagnosis of cervical lesions, and timely and effective therapy can effectively avoid the occurrence of cervical cancer or improve the survival rate of patients. In this paper, the spectra of tissue sections of cervical inflammation (n = 60), CIN (cervical intraepithelial neoplasia) I (n = 30), CIN II (n = 30), CIN III (n = 30), cervical squamous cell carcinoma (n = 30), and cervical adenocarcinoma (n = 30) were collected by a confocal Raman micro-spectrometer (LabRAM HR Evolution, Horiba France SAS, Villeneuve d’Ascq, France). The Raman spectra of six kinds of cervical tissues were analyzed, the dominant Raman peaks of different kinds of tissues were summarized, and the differences in chemical composition between the six tissue samples were compared. An independent sample t test (p ≤ 0.05) was used to analyze the difference of average relative intensity of Raman spectra of six types of cervical tissues. The difference of relative intensity of Raman spectra of six kinds of tissues can reflect the difference of biochemical components in six kinds of tissues and the characteristic of biochemical components in different kinds of tissues. The classification models of cervical inflammation, CIN I, CIN II, CIN III, cervical squamous cell carcinoma, and cervical adenocarcinoma were established by using a support vector machine (SVM) algorithm. Six types of cervical tissues were classified and identified with an overall diagnostic accuracy of 85.7%. This study laid a foundation for the application of Raman spectroscopy in the clinical diagnosis of cervical precancerous lesions and cervical cancer.

scholarly journals Effectiveness of Cervical Cancer Screening Over Cervical Cancer Mortality Among Japanese Women

2006 ◽  
Vol 36 (8) ◽  
pp. 511-518 ◽  
Author(s):  
Khandoker Aklimunnessa ◽  
Mitsuru Mori ◽  
M. M. H. Khan ◽  
Fumio Sakauchi ◽  
Tatsuhiko Kubo ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Cancer Screening ◽  
Cervical Cancer Screening ◽  
Cancer Mortality ◽  
Japanese Women ◽  
Cervical Cancer Mortality

European trends in cervical cancer mortality in relation to national screening programs, 1985–2014

2021 ◽  
Vol 74 ◽  
pp. 102002
Author(s):  
Ingrid Salciccioli ◽  
Charlie D. Zhou ◽  
Emeka C. Okonji ◽  
Joseph Shalhoub ◽  
Justin D. Salciccioli ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Cancer Mortality ◽  
Screening Programs ◽  
Cervical Cancer Mortality

scholarly journals Analysis of cervical cancer mortality rate trends in Natal-RN, Brazil, between 2000 and 2012

2019 ◽  
Vol 21 (2) ◽  
pp. 161-167
Author(s):  
Paulo Roberto Medeiros Azevedo ◽  
Joyce Bezerra Rocha ◽  
Thales Allyrio Araújo de Medeiros Fernandes ◽  
José Veríssimo Fernandes
Keyword(s):  
Cervical Cancer ◽  
Cancer Mortality ◽  
Empirical Bayes ◽  
Family Income ◽  
Screening Program ◽  
Mortality Rates ◽  
P Value ◽  
Average Family ◽  
Historical Series ◽  
Cervical Cancer Mortality

Objective To describe cervical cancer mortality rates and their corresponding trends, and to analyze the spatial correlations of this type of cancer in Natal-RN, Brazil, between 2000 and 2012.Materials and Methods The simple linear regression model, the empirical Bayes method and the Global Moran's index were used for the statistical analysis.Results The mortality coefficient of cervical cancer in Natal, standardized by age range, was 5.5 per 100 000 women. All historical series for the coefficients studied were classifiedas stable. The Global Moran's index obtained was 0.048, with a p-value for the spatial test correlation between neighborhoods of 0.300. The average family income by neighborhood showed no significant correlation to cervical cancer mortality rates.Conclusion This study found a temporal stabilization and spatial independence trend of cervical cancer mortality rates in women from Natal, as well as the absence of correlationbetween these rates and the average family income of the of the participating women distributed by neighborhoods. In view of this, changes in the public policies should be made aimed at preventing the disease; adopting these measures could positively impact the screening program, improving the coverage of Pap smears and immunization campaigns against HPV, in order to reverse this trend and achieve a reduction of mortality rates.

scholarly journals Characteristics of Human Papillomavirus Infection Among Women With Cervical Cytological Abnormalities in the Zhoupu District, Shanghai City, China, 2014–2019

2020 ◽  
Author(s):  
Ping Li ◽  
Qing Liu ◽  
Wei Li ◽  
Zhou Liu ◽  
Baoling Xing ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Precancerous Lesions ◽  
Hpv Infection ◽  
Single Type ◽  
Squamous Intraepithelial Lesions ◽  
Shanghai City ◽  
Intraepithelial Lesions ◽  
Type Infection ◽  
Multiple Type

Abstract Background: Human papillomavirus (HPV) infection is the main cause of precancerous lesions and cervical cancer in women. To determine the epidemiological characteristics as well as the relationship between the HPV genotype and cytology test results among women, we retrospectively collected and analyzed the data from Zhoupu District hospital in Shanghai, China.Methods: We made a retrospective analysis of human papillomavirus prevalence rate of 23,724 women between 2014 and 2019 in the District Zhoupu of Shanghai City in China. Their cervical exfoliations were collected. HPV genotype testing was performed using a commercial kit designed to detect 21 HPV subtypes including 15 high-risk HPV subtypes(16, 18, 31, 33, 35, 39, 45, 51, 52, 53, 56, 58, 59, 66 ,68) and 6 low-risk HPV subtypes(6, 11, 42, 43, 44 and 81). And the thinPrep cytological test (TCT) was also performed at the same time.Results: Among all 23,724 cases, 3,816 (16.08%) women were infected with HPV. HPV52 (3.19%), HPV58 (2.47%) and HPV16 (2.34%) had higher prevalence. 3,480(91.20%) single-type infections were more common than 336(8.8%) multiple-type infections. Single-type infection was more frequently seen in women aged 50–60 years (16.63%) and <30 years (15.37%), and multiple-type infection was more common in those aged >= 60 (2.67%). Significant differences in secular trends from 2014 to 2019 were observed for subtypes HPV52, 58 and 16.HPV positive rates of women changed significantly along with the time period from 2014 to 2019.Among 4,502 TCT positive women, 15 (4.04%), 125 (2.64%) ,159 (1.54%), 4,202(17.71%) and 1(0.004%) had atypical squamous cells (ASC), high-grade squamous intraepithelial lesions (HSIL), low-grade squamous intraepithelial lesions (LSIL), atypical glandular cells (AGC) and cervical adenocarcinoma respectively. The HPV infection rates were 66.08%, 63.99%, 115.20%, 119.50%, and 31.72% for NILM, AGCs, HSILs LSILs and ASCs, respectively.Conclusions: HPV and TCT screening were a key step in the secondary prevention of cervical cancer. Further tracking the results of HPV and TCT was an important clinical strategy for the treatment of cervical precancerous lesions. The widespread use of preventive HPV vaccines can significantly reduce the incidence of pre-neoplastic and neoplastic cervical lesions.

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