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Cervical intraepithelial lesions

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https://www.readbyqxmd.com/read/27933097/molecular-mechanisms-of-hpv-mediated-neoplastic-progression
#1
REVIEW
Rashmirani Senapati, Nihar Nalini Senapati, Bhagirathi Dwibedi
Human Papillomavirus is the major etiological agent in the development of cervical cancer but not a sufficient cause. Despite significant research, the underlying mechanisms of progression from a low-grade squamous intraepithelial lesion to high grade squamous intraepithelial lesion are yet to be understood. Deregulation of viral gene expression and host genomic instability play a central role in virus-mediated carcinogenesis. Key events such as viral integration and epigenetic modifications may lead to the deregulation of viral and host gene expression...
2016: Infectious Agents and Cancer
https://www.readbyqxmd.com/read/27928861/new-diagnostic-criteria-of-colposcopy-for-uterine-cervix-neoplasia
#2
Masamichi Kashimura, Yusuke Matsuura, Toshinori Kawagoe, Naoyuki Toki, Toru Hachisuga
AIM: The purpose of this study is to present alternative diagnostic criteria of colposcopy using new parameters. METHODS: Colposcopic photographs were reviewed in 1649 patients from the past 23 years, including 283 benign lesions, 327 low-grade squamous intraepithelial lesions (LSIL; cervical intraepithelial neoplasia 1), 549 high-grade squamous intraepithelial lesions (HSIL; cervical intraepithelial neoplasia 2/3), 78 microinvasive cancers, and 412 invasive cancers...
December 8, 2016: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/27917752/genetic-and-environmental-factors-in-invasive-cervical-cancer-design-and-methods-of-a-classical-twin-study
#3
Dorothy A Machalek, John D Wark, Sepehr N Tabrizi, John L Hopper, Minh Bui, Gillian S Dite, Alyssa M Cornall, Marian Pitts, Dorota Gertig, Bircan Erbas, Suzanne M Garland
BACKGROUND: Persistent high-risk human papillomavirus (HPV) infection is a necessary prerequisite for development of cervical cancer and its precursor lesion, high-grade squamous intraepithelial lesion (HSIL). However, HPV infection is not sufficient to drive this process, and genetic and environmental factors may also play a role. METHODS/DESIGN: The Cervical Cancer, Genetics and Environment Twin Study was established to investigate the environmental and genetic influences on variation in susceptibility to cervical pre-cancer in 25- to 69-year-old monozygotic (MZ) and dizygotic (DZ) twins recruited through the Australian Twin Registry...
December 5, 2016: Twin Research and Human Genetics: the Official Journal of the International Society for Twin Studies
https://www.readbyqxmd.com/read/27908632/risk-of-persistent-and-recurrent-cervical-neoplasia-following-incidentally-detected-adenocarcinoma-in-situ
#4
Aime Munro, Jim Codde, Katrina Spilsbury, Nerida Steel, Colin J R Stewart, Stuart G Salfinger, Jason Tan, Ganendra R Mohan, Yee Leung, James Semmens, Peter O'Leary, Vincent Williams, Paul A Cohen
BACKGROUND: Adenocarcinoma-in-situ (AIS) of the uterine cervix is a precursor to cervical adenocarcinoma and may co-exist with both adenocarcinoma and high-grade squamous dysplasia (cervical intraepithelial neoplasia (CIN) 2 and 3). Up to 60% of AIS lesions are detected incidentally following excisional biopsies performed for the treatment of CIN 2/3. To date there are no data regarding risk factors for persisting or progressive cervical neoplasia in these patients. OBJECTIVE: To investigate patient outcomes following incidentally detected cervical AIS after loop electrosurgical excision procedure (LEEP) or cold knife cone (CKC) biopsy performed for the treatment of high-grade cervical intraepithelial neoplasia (CIN)...
November 28, 2016: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27907089/detection-of-human-papillomavirus-infection-in-patients-with-vaginal-intraepithelial-neoplasia
#5
Cristina Lamos, Charlotte Mihaljevic, Sebastian Aulmann, Thomas Bruckner, Christoph Domschke, Markus Wallwiener, Carmen Paringer, Herbert Fluhr, Sarah Schott, Christine Dinkic, Janina Brucker, Michael Golatta, Lisa Gensthaler, Michael Eichbaum, Christof Sohn, Joachim Rom
INTRODUCTION: Vaginal intraepithelial neoplasia (VAIN) is a pre-malignant lesion, potentially leading to vaginal cancer. It is a rare disease, representing less than 1% of all intraepithelial neoplasia of the female genital tract. Similar to cervical intraepithelial neoplasia (CIN), there are three different grades of VAIN. VAIN 1 is also known as a low-grade squamous intraepithelial lesion (LSIL), whereas VAIN 2 and VAIN 3 both represent high-grade squamous intraepithelial lesions (HSIL)...
2016: PloS One
https://www.readbyqxmd.com/read/27906805/predictors-of-positive-margins-at-time-of-loop-electrosurgical-excision-procedure
#6
Jill Liss, Meredith Alston, Mona B Krull, Sara E Mazzoni
OBJECTIVE: The aim of the study was to identify factors associated with the presence of high-grade squamous intraepithelial lesion (HSIL) at surgical margins of loop electrosurgical excision procedure (LEEP) pathology specimens. MATERIALS AND METHODS: All women evaluated for lower genital tract disease at a single academic institution were prospectively entered into a database. The database was queried for all women who had a LEEP performed for indications within contemporary American Society of Colposcopy and Cervical Pathology guidelines between April 1, 2013, and April 30, 2015...
November 30, 2016: Journal of Lower Genital Tract Disease
https://www.readbyqxmd.com/read/27899988/mtor-downstream-effectors-4ebp1-and-eif4e-are-overexpressed-and-associated-with-hpv-status-in-precancerous-lesions-and-carcinomas-of-the-uterine-cervix
#7
Aristidis Asimomytis, Maria Karanikou, Alexander Rodolakis, Anna Vaiopoulou, Paraskevi Tsetsa, George Creatsas, Theodoros Stefos, Aristidis Antsaklis, Efstratios Patsouris, George Z Rassidakis
The present study aims to investigate the expression levels of two critical mammalian target of rapamycin (mTOR) downstream effectors, 4E binding protein 1 (4EBP1) and eukaryotic initiation factor 4E (eIF4E) proteins, in precancerous squamous intraepithelial lesions and cancer of the uterine cervix, and their association with human papilloma virus (HPV) infection status. Uterine cervical biopsies from 73 patients were obtained, including 40 fresh-frozen samples and 42 archival formalin-fixed, paraffin-embedded tissue specimens...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27896250/clinical-efficacy-of-photodynamic-therapy
#8
Ye-Kyu Park, Choong-Hak Park
OBJECTIVE: The management of cervical intraepithelial neoplasia (CIN) and early invasive cancer of the uterine cervix is very difficult to approach, especially in case of young woman who wants to preserve her fertility. Conization of the cervix may have various kinds of disadvantage. The objective of this clinical retrospective study is to investigate the therapeutic effects and clinical efficacy of photodynamic therapy (PDT) including combined chemo-photodynamic therapy in patients with pre-malignant CIN and malignant invasive cervical cancer...
November 2016: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/27896249/glycogen-synthase-kinase-3%C3%AE-and-cyclin-d1-expression-in-cervical-carcinogenesis
#9
Hyunsoo Park, Myunghwa Lee, Dae Woon Kim, Seo Yoo Hong, Hojung Lee
OBJECTIVE: Glycogen synthase kinase 3β (GSK3β) is a pluripotent protein kinase involved in the development of cancers through regulation of numerous oncogenic molecules. Cyclin D1, an important regulator of G1 to S phase transition in various cells, is one of target proteins that GSK3β regulate. Our objective was to assess the expression of GSK3β and cyclin D1 in cervical neoplasm of different histologic grades and to identify their correlation in cervical carcinogenesis. METHODS: Immunohistochemical analysis of GSK3β and cyclin D1 was performed in a total of 137 patients with 12 normal, 62 cervical intraepithelial neoplasia (CIN) (31 CIN1 and 31 CIN3) and 63 invasive cancers including 56 squamous cell carcinomas and 7 adenocarcinomas...
November 2016: Obstetrics & Gynecology Science
https://www.readbyqxmd.com/read/27891686/implementation-of-a-real-time-reference-and-calibration-grid-platform-for-improved-screening-mapping-in-pap-test-slides
#10
Evangelos Tsiambas, Christos Riziotis
Cervical cancer screening based on the Papanicolaou (Pap) test is a widely applied but not always efficient practice for detecting Human Papillomavirus (HPV) mediated lesions, partially due to a non-systematic and inadequate screening process. Our aim was to introduce an inexpensive easy-to-use direct screening platform for improved detection of abnormal cells indicative of underlying cervical neoplasia as well as persisting HPV infection. By employing a novel, efficient technique of laser-based micromachining, we achieved the fabrication of spatial grids on commercially available coverslips allowing visual segmentation of the slide for efficient screening...
November 27, 2016: Pathology International
https://www.readbyqxmd.com/read/27891400/prevalence-of-human-papilloma-virus-infection-in-young-primiparous-women-during-postpartum-period-study-from-a-tertiary-care-center-in-northern-india
#11
Alpana Garg, Vanita Suri, Raje Nijhawan, Neelam Aggarwal, Ritu Aggarwal, Charu Guleria, Mili Thakur
INTRODUCTION: Assessment of high-risk Human Papilloma Virus (HPV) prevalence is important for monitoring long-term decrease in cervical cancer after implementation of the prophylactic HPV vaccination. AIM: To determine the prevalence of high-risk HPV infection and cytological abnormalities in young primiparous women in the age group of 16-26years. MATERIALS AND METHODS: In this cross-sectional study, 214 primiparous women aged 16-26years were recruited from a public tertiary health care center postpartum clinic between June 2013 and May 2014...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27886713/automated-classification-of-pap-smear-images-to-detect-cervical-dysplasia
#12
Kangkana Bora, Manish Chowdhury, Lipi B Mahanta, Malay Kumar Kundu, Anup Kumar Das
BACKGROUND AND OBJECTIVES: The present study proposes an intelligent system for automatic categorization of Pap smear images to detect cervical dysplasia, which has been an open problem ongoing for last five decades. METHODS: The classification technique is based on shape, texture and color features. It classifies the cervical dysplasia into two-level (normal and abnormal) and three-level (Negative for Intraepithelial Lesion or Malignancy, Low-grade Squamous Intraepithelial Lesion and High-grade Squamous Intraepithelial Lesion) classes reflecting the established Bethesda system of classification used for diagnosis of cancerous or precancerous lesion of cervix...
January 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/27884161/hpv16-integration-probably-contributes-to-cervical-oncogenesis-through-interrupting-tumor-suppressor-genes-and-inducing-chromosome-instability
#13
Jun-Wei Zhao, Fang Fang, Yi Guo, Tai-Lin Zhu, Yun-Yun Yu, Fan-Fei Kong, Ling-Fei Han, Dong-Sheng Chen, Fang Li
BACKGROUND: The integration of human papilloma virus (HPV) into host genome is one of the critical steps that lead to the progression of precancerous lesion into cancer. However, the mechanisms and consequences of such integration events are poorly understood. This study aims to explore those questions by studying high risk HPV16 integration in women with cervical intraepithelial neoplasia (CIN) and cervical squamous cell carcinoma (SCC). METHODS: Specifically, HPV integration status of 13 HPV16-infected patients were investigated by ligation-mediated PCR (DIPS-PCR) followed by DNA sequencing...
November 25, 2016: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/27883177/feasibility-of-clinical-detection-of-cervical-dysplasia-using-angle-resolved-low-coherence-interferometry-measurements-of-depth-resolved-nuclear-morphology
#14
Derek Ho, Tyler K Drake, Karen K Smith-McCune, Teresa M Darragh, Loris Y Hwang, Adam Wax
This study sought to establish the feasibility of using in situ depth-resolved nuclear morphology measurements for detection of cervical dysplasia. Forty (40) enrolled patients received routine cervical colposcopy with angle-resolved low coherence interferometry (a/LCI) measurements of nuclear morphology. a/LCI scans from 63 tissue sites were compared to histopathological analysis of co-registered biopsy specimens which were classified as benign, low-grade squamous intraepithelial lesion (LSIL), or high-grade squamous intraepithelial lesion (HSIL)...
November 24, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27870295/infections-with-multiple-high-risk-hpv-types-are-associated-with-high-grade-and-persistent-low-grade-intraepithelial-lesions-of-the-cervix
#15
Louise De Brot, Bruno Pellegrini, Sabrina Teixeira Moretti, Dirce Maria Carraro, Fernando Augusto Soares, Rafael Malagoli Rocha, Glauco Baiocchi, Isabela Werneck da Cunha, Victor Piana de Andrade
BACKGROUND: Infections with multiple human papillomavirus (HPV) types (mHPV) in Papanicolaou tests have been reported but the histologic correlation and clinical meaning remains debatable. METHODS: The authors prospectively tested 37 HPV types using the Linear Array HPV Genotyping Test and correlated the results to cytology and histology findings in 260 women evaluated from June 2009 to October 2011 and followed for up to 60 months. RESULTS: HPV was detected in 148 of 235 samples (63%) and high-risk HPV was detected in 132 samples (56%)...
November 21, 2016: Cancer
https://www.readbyqxmd.com/read/27868406/-expression-of-mir-let-7e-3p-in-cervical-intraepithelial-neoplasm-and-cervix-carcinoma-and-its-clinical-significance
#16
Xiaojing Chen, Junfen Xu, Jing Ye, Xiaodong Cheng, Xing Xie, Weiguo Lyu
Objective: To investigate the expression of microRNA (miRNA, miR) let-7e-3p in different cervical lesions and its clinical significance. Methods: The expression of miR-let-7e-3p in the tissues of normal cervix (n=26), high-grade squamous intraepithelial lesion (HSIL) (n=37), and cervix carcinoma (n=101) were detected by reverse transcription and quantitative polymerase chain reaction (RT-qPCR). The correlation of miR-let-7e-3p expression with the clinicopathological parameters of patients with cervical cancer was analyzed...
May 25, 2016: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/27867303/dna-methylation-of-cellular-retinoic-acid-binding-proteins-in-cervical-cancer
#17
Ana L Arellano-Ortiz, Mauricio Salcedo-Vargas, Claudia L Vargas-Requena, José A López-Díaz, Antonio De la Mora-Covarrubias, Juan C Silva-Espinoza, Florinda Jiménez-Vega
This study determined the methylation status of cellular retinoic acid-binding protein (CRABP) gene promoters and associated them with demographic characteristics, habits, and the presence of human papilloma virus (HPV) in patients with cervical cancer (CC), low and high squamous intraepithelial lesions, and no intraepithelial lesion. Women (n = 158) were selected from the Colposcopy Clinic of Sanitary Jurisdiction II in Ciudad Juarez, Chihuahua, Mexico. Demographic characteristics and habit information were collected...
2016: Genetics & Epigenetics
https://www.readbyqxmd.com/read/27864932/hpv-status-and-favorable-outcome-in-vulvar-squamous-cancer
#18
Katie Wakeham, Kim Kavanagh, Kate Cuschieri, David Millan, Kevin G Pollock, Sarah Bell, Kevin Burton, Nicholas S Reed, Sheila V Graham
It is universally accepted that high-risk human papillomavirus (HR-HPV) is the cause of cervical dysplasia and cancer. More recently it has been shown that HPV is also a marker of clinical outcome in oropharyngeal cancer. However, contemporary information is lacking on both the prevalence of HPV infection in vulvar cancer (VSCC), its precursor lesion, vulvar intraepithelial neoplasia (VIN) and the influence of HPV-status on the prognosis of this malignancy. We have conducted a detailed population-based study to examine rates of progression of VIN to VSCC, type-specific HPV prevalence in vulvar disease and the influence of HPV status on clinical outcome in VSCC...
November 16, 2016: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/27863182/corpora-amylacea-and-molluscum-contagiosum-on-a-cervical-pap-smear
#19
Kaila Buckley, Zaibo Li
When evaluating a Papanicolaou (Pap) smear, the cytology of the squamous epithelial cells is of utmost importance. This is what cytopathologists use to render a diagnosis, ranging from normal to atypical squamous cells of undetermined significance (ASCUS) to high grade squamous intraepithelial lesions, or even squamous cell carcinoma. However, occasionally the pathologist will run into microscopic noncellular material as in our case, such as corpora amylacea on the slides, or even uncommon viral inclusions such as Molluscum contagiosum (MCV)...
November 8, 2016: Diagnostic Cytopathology
https://www.readbyqxmd.com/read/27851695/evaluation-of-viral-load-as-a-triage-strategy-with-primary-high-risk-human-papillomavirus-cervical-cancer-screening
#20
Hongxue Luo, Jerome L Belinson, Hui Du, Zhihong Liu, Lijie Zhang, Chun Wang, Xinfeng Qu, Robert G Pretorius, Ruifang Wu
OBJECTIVE: The aim of the study was to evaluate the human papillomavirus (HPV) viral load combined with cytology as a secondary screening strategy after primary HPV screening. MATERIALS AND METHODS: The data referring to direct Hybrid Capture 2 (HC2), cytology, and histology from Shenzhen Cervical Cancer Screening Trial II were re-analyzed to determine the correlation between viral load and cervical lesions. In addition, algorithms using different viral loads as cut points for immediate colposcopy plus cytology triage were compared with several recommended or controversial primary screening methods...
November 15, 2016: Journal of Lower Genital Tract Disease
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