Increased sialylation and reduced fucosylation of exfoliated cervical cells are potential markers of carcinogenesis in the cervix

2016 ◽  
Vol 54 (11) ◽  
Author(s):  
Yingji Jin ◽  
Seung Cheol Kim ◽  
Hyoung Jin Kim ◽  
Woong Ju ◽  
Yun Hwan Kim ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Cervical Intraepithelial Neoplasia ◽  
Cervical Dysplasia ◽  
Pap Test ◽  
Intraepithelial Neoplasia ◽  
Normal Cytology ◽  
Considerable Potential ◽  
Primary Screening ◽  
Cancerous Lesions ◽  
Cervical Cells

AbstractBackground:The Pap test has been used for over 50 years for primary screening of cervical cancer. There has been no study of glycosylation changes in Pap test samples despite considerable potential of the glycosylation changes as biomarkers for detecting cancerous lesions. In this study, we developed a 96-well platform for enzyme-linked lectin assays (ELLAs) to evaluate glycosylation levels in cervical cells.Methods:A total of 117 samples of exfoliated cervical cells (ECCs) from 37 individuals with normal cytology, 20 with cervical intraepithelial neoplasia (CIN) 1, 19 with CIN 2, 26 with CIN 3 and 15 with cervical cancer were analyzed by ELLAs. The wells of 96-well plates were coated with lysates of the cervical cells, and sialylation and fucosylation levels were compared between the groups.Results:Sialylation levels increased and fucosylation levels decreased with increasing grade of cervical dysplasia. ELLAs for sialylation [ELLA-Conclusions:The sialylation and fucosylation levels of ECCs as measured by ELLAs have great potential as biomarkers for primary screening of cervical cancer.

Thermal Coagulation Device for Treating Cervical Dysplasia

2018 ◽  
Vol 26 (2) ◽  
pp. 149-152 ◽  
Author(s):  
Ashley Langell ◽  
Timothy Pickett ◽  
Catherine Mangum ◽  
Jennwood Chen ◽  
John Langell
Keyword(s):  
Cervical Cancer ◽  
Cervical Intraepithelial Neoplasia ◽  
Resource Constraints ◽  
Low Cost ◽  
Stakeholder Analysis ◽  
Cervical Dysplasia ◽  
Intraepithelial Neoplasia ◽  
Cervical Cancer Prevention ◽  
User Centered Design ◽  
Thermal Coagulation

Background. Cervical cancer remains a leading cause of cancer-related deaths worldwide despite being a highly preventable disease. Nine out of every 10 deaths due to cervical cancer occur in developing regions with limited access to medical care and unique resource constraints. To address cervical cancer prevention within the confines of these unique limitations, our team of students and faculty advisors at the University of Utah’s Center for Medical Innovation developed a low-cost, portable technology that utilizes thermal coagulation, a form of heat ablation, to treat cervical intraepithelial neoplasia. Methods. A multidisciplinary team of students worked with clinical and industry advisors to develop a globally applicable treatment for cervical intraepithelial neoplasia through a systematic process of problem validation, stakeholder analysis, user-centered design, business plan development, and regulatory clearance. Results. Our efforts resulted in the development of a functional, self-contained, battery-operated prototype within 72 days, followed by Food and Drug Administration clearance of a finalized device within 18 months. Conclusion. Interdisciplinary university programs that leverage the capabilities of academic-industry partnerships can accelerate the development and commercialization of affordable medical technologies to solve critical global health issues.

Trends in the Prevalence of Cervical Intraepithelial Neoplasia Grade 3 in the District of Florence, Italy

1995 ◽  
Vol 81 (5) ◽  
pp. 330-333 ◽  
Author(s):  
Silvia Cecchini ◽  
Stefano Ciatto ◽  
Marco Zappa ◽  
Annibale Biggeri
Keyword(s):  
Cervical Cancer ◽  
Cervical Intraepithelial Neoplasia ◽  
Poisson Regression ◽  
Precancerous Lesions ◽  
Age Groups ◽  
Pap Test ◽  
Intraepithelial Neoplasia ◽  
Birth Cohorts ◽  
Cervical Intraepithelial Neoplasia Grade ◽  
Detection Rates

Aims and background The objective of this study was to investigate the detection rate of cervical intraepithelial neoplasia grade III (CIN 3) in previously unscreened women, in order to reveal trends over time in the prevalence of CIN 3 in the District of Florence, where a population-based screening for cervical cancer has been going on since 1973. Study design We considered the women, recorded in the computerized archives of CSPO, who had had no pap test for at least 10 years. Trends of CIN 3 (histologically proven) were analyzed within age groups; the effect of age, cohort and period were considered by means of a Poisson regression model. Results A total of 648 cases of histologically proven CIN 3 were detected in the study period. The detection rates of CIN 3 increased steadly within age groups over birth cohort and calendar period simultaneously. The Poisson regression analysis showed that only the model with age + time trend was statistically significant. Conclusions Although several biases should be taken into account, the analysis seemed to indicate a real increase in CIN 3 prevalence. An increase in frequency of precancerous lesions for cervical cancer in more recent birth cohorts supports the need to keep screening coverage and efficiency as high as possible.

Human papillomavirus genotype prevalence in cervical biopsies from women diagnosed with cervical intraepithelial neoplasia or cervical cancer in Melbourne, Australia

2006 ◽  
Vol 16 (3) ◽  
pp. 1017-1024
Author(s):  
M. P. Stevens ◽  
S. N. Tabrizi ◽  
M. A. Quinn ◽  
S. M. Garland
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Cervical Intraepithelial Neoplasia ◽  
Cervical Dysplasia ◽  
Intraepithelial Neoplasia ◽  
Phase Iii ◽  
Detection Rates ◽  
Phase Iii Clinical Trials ◽  
Hpv Genotypes ◽  
Hpv 18

Multicenter international phase III clinical trials using multivalent human papillomavirus (HPV) vaccines for cervical cancer (CC) prevention are underway. As HPV immunity is type specific, defining HPV genotype prevalence in different regions to ascertain whether predominant types differ geographically is considerably important prior to vaccine implementation. This study aimed to define HPV genotypes present in CC and high-grade dysplasia among women in Melbourne, Australia. HPV genotype analysis of a cross section of women in Melbourne with cervical dysplasia/cancer was performed. A total of 493 cervical biopsies from patients being treated for moderate (n = 122) or severe (n = 180) cervical intraepithelial neoplasia (CIN II/III) or CC (n = 191) were tested for HPV genotypes using the PGMY09/11 primer system and line blot assay. HPV detection rates were 63.9%, 72.8%, and 86.9% in CIN II, CIN III, and CC biopsies, respectively. The most prevalent HPV genotypes among CC biopsies were HPV-16 (52.9%), HPV-18 (18.3%), HPV-45 (6.3%), HPV-39 (3.1%), and HPV-73 (2.6%). Multiple HPV infections, comprising two to five types, were identified in 14.4% of biopsies, being significantly fewer (5.2%) among CC biopsies (P < 0.0001). These results indicate that the two most prevalent CC-associated HPV genotypes in Australia parallel those described internationally, with type variations thereafter.

scholarly journals THE INFLUENCE OF PROPIONATE ON THE SPECTRUM OF LONG-CHAIN FATTY ACIDS IN CERVICAL CELLS DURING DIS- AND NEOPLASTIC TRANSFORMATION

2018 ◽  
Vol 5 (2) ◽  
pp. 31-41
Author(s):  
E. V. Kayukova ◽  
T. E. Belokrinitskaya ◽  
P. P. Tereshkov
Keyword(s):  
Cervical Cancer ◽  
Fatty Acids ◽  
Cervical Intraepithelial Neoplasia ◽  
Tumor Cells ◽  
Intraepithelial Neoplasia ◽  
Metabolic Reprogramming ◽  
Chromatography Method ◽  
Stage Development ◽  
Cervical Cells ◽  
Long Chain

Background.Metabolic reprogramming of tumor cells is one of the leading links in carcinogenesis. The objective to confirm the hypothesis of a propionate pathway for the synthesis of long-chain acids with an odd number of carbon atoms in cervical cancer.Materials and methods.As samples for the study were biopsies of the colli uteri, from which a suspension of tumor cells was obtained (20 – cervical cancer, 20 – cervical intraepithelial neoplasia III grade, 18 – endocervical scraping from healthy women). The spectrum of fatty acids (FA) was analyzed before, after 24 hours incubation without and with 50 μmol/l propionic acid by the gas chromatography method.Results.Metabolism of FA is multidirectional in different locus in cervical cancer. In the locus of cervical cancer, most likely, there is a propionic pathway for the synthesis of FA using palmitate. In cervical intraepithelial neoplasia III grade, the metabolism of FA is another. Palmitic acid was used for synthesis stearate, which was metabolized to oleic acid.Сonclusion.The specificity of biochemical changes within one organ and one pathology has been revealed, which reflects the stage-by-stage development of the oncological process.

scholarly journals Quantification of HPV16 E6/E7 mRNA Spliced Isoforms Viral Load as a Novel Diagnostic Tool for Improving Cervical Cancer Screening

2018 ◽  
Vol 7 (12) ◽  
pp. 530 ◽  
Author(s):  
Claire Camus ◽  
Sébastien Vitale ◽  
Céline Loubatier ◽  
Guillaume Pénaranda ◽  
Hacène Khiri ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Cancer Screening ◽  
Cervical Intraepithelial Neoplasia ◽  
Cervical Cancer Screening ◽  
Diagnostic Performance ◽  
Pap Test ◽  
Intraepithelial Neoplasia ◽  
Human Papillomaviruses ◽  
Cervical Lesions ◽  
Hpv16 E6

High-risk human papillomaviruses (HPVs) have been identified as the main contributors to cervical cancer. Despite various diagnostic tools available, including the predominant Papanicolaou test (Pap test), technical limitations affect the efficiency of cervical cancer screening. The aim of this study was to evaluate the diagnostic performance of spliced HPV16 E6/E7 mRNA viral loads (VL) for grade 2 or higher cervical intraepithelial neoplasia diagnosis. A new dedicated (quantitative reverse transcription polymerase chain reaction) qRT-PCR assay was developed, allowing selective quantification of several HPV16 E6/E7 mRNA: Full length (FL) with or without all or selected spliced forms (total E6/E7 mRNA corresponding to SP + E6^E7 mRNA (T), + spliced E6/E7 mRNA containing intact E7 ORF (SP), and E6/E7 mRNA containing disrupted E6 and E7 ORFs calculated by the following subtraction T-SP (E6^E7)). Twenty HPV16 DNA and mRNA positive uterine cervical smears representative of all cytological and histological stages of severity were tested. We have shown that all E6/E7 mRNA isoforms expression levels were significantly increased in high grade cervical lesions. Statistical analysis demonstrated that the SP-E6/E7 VL assay exhibited: (i) The best diagnostic performance for identification of both cervical intraepithelial neoplasia (CIN)2+ (90% (56–100) sensitivity and specificity) and CIN3+ (100% (72–100) sensitivity and 79% (49–95) specificity) lesions; (ii) a greater sensitivity compared to the Pap test for CIN2+ lesions detection (80% (44–97)); (iii) a predictive value of the histological grade of cervical lesions in 67% of atypical squamous cells of unknown significance (ASC-US) and 100% of low-grade (LSIL) patients. Overall, these results highlight the value of SP-E6/E7 mRNA VL as an innovative tool for improving cervical cancer screening.

PECULIARITIES OF PAPILLOMAVIRUS GENOTYPING IN PATIENTS WITH CERVICAL INTRAEPITHELIAL NEOPLASIA

2020 ◽  
pp. 104-111
Author(s):  
N.A. Shmakova ◽  
G.N. Chistyakova ◽  
I.N. Kononova ◽  
I.I. Remizova
Keyword(s):  
Cervical Cancer ◽  
Human Papillomavirus ◽  
Viral Load ◽  
Cervical Intraepithelial Neoplasia ◽  
Intraepithelial Neoplasia ◽  
Squamous Intraepithelial Lesions ◽  
Hpv 16 ◽  
The World ◽  
Intraepithelial Lesions ◽  
Hpv 18

Recently, there has been a steady growth of cervical cancer all over the world, especially in Russia. Patients with cervical cancer have become much younger. At the same time, the human papillomavirus is not only the main factor in the neoplastic process, but it is also one of the most common sexually transmitted infections in the world. The aim of the paper is to assess the prevalence and characteristics of human papillomavirus genotypes in patients with cervical intraepithelial neoplasia. Materials and Methods. During the periodic screening we examined 213 women of a reproductive age with HPV infection. All patients underwent liquid-based cytology and human papillomavirus genotyping by polymerase chain reaction. Results. We revealed that the prevalence of cervical intraepithelial neoplasia among women with papillomavirus infection was 80.3 % (n=171). According to human papillomavirus genotyping, HPV 16 (38 %) and HPV 33 (32 %) prevailed. We also observed positive high correlation between high-grade squamous intraepithelial lesions (HSIL) and HPV 18 (r=+0.759, p=0.001), a negative mean correlation between HPV 45 and low-grade squamous intraepithelial lesions (LSIL) (r=-0.643, p=0.002). A cohort of patients with severe intraepithelial cervical lesions demonstrated high viral load rates. Conclusion. According to the results obtained, we established the dominance of HPV 16 and HPV 33 genotypes in cervical intraepithelial neoplasia. There were significant differences between HSIL and LSIL patients with HPV 18 and HPV 45. There was also a correlation between an increase in the viral load with the severity of the pathological process. Keywords: human papillomavirus, intraepithelial cervical neoplasms, cervical cancer. В последние годы в мире, особенно в России, наблюдается неуклонный рост и «омолаживание» рака шейки матки. При этом вирус папилломы человека является не только основным фактором прогрессирования неопластического процесса, но и одной из наиболее распространенных инфекций, предаваемых половым путем, в мире. Цель. Оценить распространенность и характеристику генотипов папилломавирусной инфекции у пациенток с цервикальными интраэпителиальными неоплазиями. Материалы и методы. Проведено обследование 213 пациенток репродуктивного возраста с ВПЧ-инфекцией, пришедших на профилактический осмотр. Всем женщинам было выполнено цитологическое исследование жидкостным методом и генотипирование вируса папилломы человека методом полимеразной цепной реакции. Результаты. Распространенность цервикальных интраэпителиальных неоплазий среди женщин с папилломавирусной инфекцией составила 80,3 % (171 пациентка). Согласно данным генотипирования вируса папилломы человека превалировал 16-й (38 %) и 33-й типы (32 %). Выявлена положительная высокая корреляционная связь между цервикальными неоплазиями высокой степени онкогенного риска (HSIL) и 18-м типом ВПЧ-инфекции (r=+0,759 при р=0,001), отрицательная средняя корреляционная связь 45-го типа ВПЧ с низкой степенью онкогенного риска (LSIL) (r=-0,643 при р=0,002). Продемонстрированы высокие показатели вирусной нагрузки в когорте пациенток с тяжелыми внутриэпителиальными цервикальными поражениями. Выводы. По результатам полученных данных установлено доминирование 16-го и 33-го генотипов ВПЧ при цервикальных интраэпителиальных неоплазиях с наличием значимых различий между пациентами с HSIL и LSIL в отношении 18-го и 45-го типов, а также связь роста уровня вирусной нагрузки с увеличением степени тяжести патологического процесса. Ключевые слова: вирус папилломы человека, интраэпителиальные новообразования шейки матки, рак шейки матки.

Long noncoding RNA HOTAIR as a biomarker for the detection of Cervical Cancer and Cervical Intraepithelial Neoplasia

2021 ◽  
Vol 19 (4) ◽  
Author(s):  
Maryame Lamsisi ◽  
Guorong Li ◽  
Mustapha Benhessou ◽  
Mohammed El Mzibri ◽  
Amal Bouziyane ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Cervical Intraepithelial Neoplasia ◽  
Long Noncoding Rna ◽  
Noncoding Rna ◽  
Intraepithelial Neoplasia

CYP1A1 gene polymorphism as a risk factor for cervical intraepithelial neoplasia and invasive cervical cancer

2006 ◽  
Vol 101 (3) ◽  
pp. 503-506 ◽  
Author(s):  
Cagatay Taskiran ◽  
Dilek Aktas ◽  
Nilufer Yigit-Celik ◽  
Mehmet Alikasifoglu ◽  
Kunter Yuce ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Risk Factor ◽  
Gene Polymorphism ◽  
Cervical Intraepithelial Neoplasia ◽  
Invasive Cervical Cancer ◽  
Intraepithelial Neoplasia ◽  
Cyp1a1 Gene
Sign in / Sign up

Export Citation Format

Share Document