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cervical cancer biomarkers

Ling Xu, Jun Xu, Zheng Hu, Baohua Yang, Lifeng Wang, Xiao Lin, Ziyin Xia, Zhiling Zhang, Yunheng Zhu
DNA methylation is associated with tumorigenesis and may act as a potential biomarker for detecting cervical cancer. The aim of the present study was to explore the methylation status of the paired box gene 1 (PAX1) and the LIM homeobox transcription factor 1 α (LMX1A) gene in a spectrum of cervical lesions in an Eastern Chinese population. This single-center study involved 121 patients who were divided into normal cervix (NC; n=28), low-grade squamous intraepithelial lesion (LSIL; n=32), high-grade squamous intraepithelial lesion (HSIL; n=34) and cervical squamous cell carcinoma (CSCC; n=27) groups, according to biopsy results...
April 2018: Oncology Letters
Lulu Yu, Mingyue Jiang, Pengpeng Qu, Zeni Wu, Peisong Sun, Mingrong Xi, Yu Qin, Xin Liu, Guangdong Liao, Xiaoqin Lei, Lixin Sun, Yongzhen Zhang, Zhifang Li, Wen Chen, You-Lin Qiao
HPV-16 and -18 account for about 80% of cervical cancers. We evaluated the performance of HPV-16/18 oncoprotein to predict precancer and cancer in corresponding tissue biopsy specimens. 1008 women attending cervical cancer screening program and 638 women referred to colposcopy with biopsy-confirmed cervical intraepithelial neoplasia grade 2 or worse (CIN2+) from 4 hospitals were recruited (1646 in total). All women were tested OncoE6 (AVC), Liquid Based Cytology (Hologic) and cobas HPV test (Roche). Colposcopy was performed on women with any abnormal results...
March 9, 2018: International Journal of Cancer. Journal International du Cancer
Wanrong Wu, Fulin Liu, Kejia Wu, Yurou Chen, Hanshu Wu, Guo Dai, Wei Zhang
BACKGROUND Lon protease is responsible for degrading proteins injured by oxidation, and has 2 isoforms, located in mitochondria and peroxisomes. Recent research showed that Lon protease was upregulated in different types of human cancer, but the role of Lon peptidase 2, peroxisomal (LONP2) in cancer is not well understood. It is known, however, that in cancer biology, reduction-oxidation is one of the molecular mechanisms involved in tumorigenesis. MATERIAL AND METHODS Oncomine databases and tissue microarrays, initially using immunohistochemistry, were used to analyze LONP2 expression in cervical cancer...
March 4, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
Yingji Jin, Seung Cheol Kim, Hyoung Jin Kim, Woong Ju, Yun Hwan Kim, Hong-Jin Kim
There has been no attempt to apply protein-based markers of exfoliated cervical cells (ECCs) for primary screening of cervical cancer. In the present study, the levels of six tumor-associated protein [TAPs: Sialyl Lewis A (SLeA), Cancer Antigen 15-3 (CA 15-3), p53, heat shock protein (Hsp)70, Hsp27 and squamous cervical carcinoma antigen (SCCA)]and of two human papillomavirus (HPV) viral proteins (HPV16 E7 and HPV16 L1) of ECCs lysates were evaluated by enzyme-linked immunosorbent assays (ELISAs).The wells of 96-well plates were coated with the ECCs lysates from normal, cervical intraepithelial neoplasia (CIN) I, CIN II, CIN III and cancer groups, and candidate proteins were detected by relevant antibodies...
February 28, 2018: Archives of Pharmacal Research
Ayodele Gomih, Jennifer S Smith, Kari E North, Michael G Hudgens, Wendy R Brewster, Zhiqing Huang, David Skaar, Fidel Valea, Rex C Bentley, Adriana C Vidal, Rachel L Maguire, Randy L Jirtle, Susan K Murphy, Cathrine Hoyo
The role of host epigenetic mechanisms in the natural history of low-grade cervical intraepithelial neoplasia (CIN1) is not well characterized. We explored differential methylation of imprinted gene regulatory regions as predictors of the risk of CIN1 regression. A total of 164 patients with CIN1 were recruited from 10 Duke University clinics for the CIN Cohort Study. Participants had colposcopies at enrollment and up to five follow-up visits over three years. DNA was extracted from exfoliated cervical cells for methylation quantitation at CpG (cytosine-phosphate-guanine) sites and human papillomavirus (HPV) genotyping...
February 28, 2018: International Journal of Cancer. Journal International du Cancer
Liming Wang, Hui Shen, Da Zhu, Bei Feng, Lan Yu, Xun Tian, Ci Ren, Chun Gao, Xiaomin Li, Ding Ma, Zheng Hu, Hui Wang
Integration of the high risk human papillomavirus (HR-HPV) genome into host chromatin is an important step in cervical carcinogenesis. We identified HR-HPV integration sites within the human genome through detection of integrated papillomavirus sequences-PCR and assessed the role of high mobility group A 2 (HMGA2) in cervical carcinogenesis in clinical samples and cell lines. HPV integration sites were analyzed in 40 cervical cancer samples, while copy number variation and protein expression were assessed in 19 normal cervixes, 49 cervical intraepithelial neoplasia (CIN), and 52 cervical cancer samples...
January 30, 2018: Oncotarget
Emanuela Anastasi, Silvia Gigli, Laura Ballesio, Antonio Angeloni, Lucia Manganaro
Gynecological tumors, including endometrial, cervical and ovarian cancer, have increased in incidence over time. The widespread introduction of screening programs and advances in diagnostic imaging methods has lead to a progressive increase in gynecological cancer detection. Accurate diagnosis and proper monitoring of disease remain the primary target for a successful treatment. In the last years, knowledge about cancer biomarkers has considerably increased providing great opportunities for improving cancer detection and treatment...
February 26, 2018: Asian Pacific Journal of Cancer Prevention: APJCP
Chaninya Wongwarangkana, Nasamon Wanlapakorn, Jira Chansaenroj, Yong Poovorawan
Cervical cancer is one of the leading causes of death in women worldwide, particularly in developing countries. Human papillomavirus has been reported as one of the key etiologic factors in cervical carcinoma. Likewise, epigenetic aberrations have ability to regulate cancer pathogenesis and progression. Recent research suggested that methylation has been detected already at precancerous stages, which methylation markers may have significant value in cervical cancer screening. The retinoic acid receptor beta ( RAR β) gene, a potential tumor suppressor gene, is usually expressed in normal epithelial tissue...
February 12, 2018: World Journal of Virology
Hormuzd A Katki, Mark Schiffman
Our work involves assessing whether new biomarkers might be useful for cervical-cancer screening across populations with different disease prevalences and biomarker distributions. When comparing across populations, we show that standard diagnostic accuracy statistics (predictive values, risk-differences, Youden's index and Area Under the Curve (AUC)) can easily be misinterpreted. We introduce an intuitively simple statistic for a 2 × 2 table, Mean Risk Stratification (MRS): the average change in risk (pre-test vs...
February 14, 2018: Preventive Medicine
Weina Yang, Lina Gu, Chang Yang, Tianbo Liu
Objective: Nemo-like kinase (NLK) has been reported to play different roles in tumors. However, the role of NLK in cervical squamous cell carcinoma (CSCC) remains unknown. In this study, we explored the clinical significance including survival of NLK protein expression in CSCCs. Patients and methods: Immunohistochemical method was performed using tissues from 130 patients with CSCC. The associations between NLK expression and the clinicopathological factors and prognosis of CSCCs were evaluated...
2018: OncoTargets and Therapy
Tímea Szekerczés, Ádám Galamb, Adrienn Kocsis, Márta Benczik, Tibor Takács, Attila Martonos, Balázs Járay, András Kiss, Csaba Jeney, Miklós Nyíri, Zsuzsa Schaff, Gábor Sobel
Several biomarkers are in use to improve the sensitivity and specificity of cervical cancer screening. Previously, increased expression of tight junction protein claudin-1 (CLDN1) was detected in premalignant and malignant cervical lesions and applied for cytology screening. To improve the specificity, a double immunoreaction with CLDN1/Ki67 was developed in the recent study. Parallel p16/Ki67 (CINtec® PLUS) and CLDN1/Ki67 dual-stained cytology and histology were performed and compared. p16/Ki67 immunoreaction showed positivity in 317 out of 1596 smears with negativity in 1072 and unacceptable reactions in 207 samples...
February 13, 2018: Pathology Oncology Research: POR
Yue Li, Lin Zhao, Yining Zhang, Lin Guan, Huijing Zhang, Huan Zhou, Tong Gao, Peng Miao, Mingjun Sun
Long non-coding RNAs (lncRNAs) have emer-ged as major players in many biological and pathological processes; however, investigation into the function of lncRNAs in the development and progression of cancer is in its infancy. Therefore, clarification of the mechanism by which cancer‑related lncRNAs function is of critical importance in research on tumorigenesis. It has been demonstrated that the lncRNA XLOC_010588 is expressed at a low level in cervical cancer, and that this has significant impact on the proliferation of cervical cancer cells...
February 12, 2018: Oncology Reports
Run Tian, Xiaofang Li, Yan'e Gao, Yue Li, Pei Yang, Kunzheng Wang
Lymph node (LN) metastasis at an early stage of cervical cancer is often an indicator of poor prognosis and is critical for subsequent adjuvant therapy. The current study aimed to identify aberrant gene signatures and biomarkers of metastasis for patients with cervical cancer. RNA-sequencing data of 132 LN negative (N0) and 60 LN positive (N1) cervical cancer samples obtained from The Cancer Genome Atlas database were analyzed. Differentially expressed genes were identified using R packages 'edgeR' and 'limma'...
February 7, 2018: International Journal of Oncology
Megan A Clarke, Ana Gradíssimo, Mark Schiffman, Jessica Lam, Christopher C Sollecito, Barbara Fetterman, Thomas Lorey, Nancy E Poitras, Tina Raine-Bennett, Philip E Castle, Nicolas Wentzensen, Robert D Burk
PURPOSE: Human papillomavirus (HPV) DNA methylation testing is a promising triage option for women testing HPV-positive during cervical cancer screening. However, the extent to which methylation indicates precancer for all 12 carcinogenic HPV types has not been evaluated. EXPERIMENTAL DESIGN: In this nested case-control study, we tested up to 30 cases of precancer (CIN3/AIS) and 30 normal controls for each carcinogenic type (single infections with 16/18/31/33/35/39/45/51/52/56/58/59)...
February 2, 2018: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
Lu Liu, Chunmei Ying, Zhen Zhao, Long Sui, Xinyan Zhang, Chunyan Qian, Qing Wang, Limei Chen, Qisang Guo, Jiangnan Wu
Background: The dynamic methylation of human papillomavirus (HPV) 16 DNA is thought to be associated with the progression of cervical lesions. Previous studies that did not consider the physical status of HPV 16 may have incorrectly mapped HPV 16 methylomes. In order to identify reliable biomarkers for squamous cervical cancer (SCC), we comprehensively evaluated the methylation of HPV 16 depending on the integration incidence of each sample. Methods: Based on the integration status of 115 HPV 16-infected patients (50 SCC, 30 high-grade squamous intraepithelial lesion [HSIL], and 35 low-grade squamous intraepithelial lesion [LSIL]) and HPV 16-infected Caski cell lines by PCR detection of integrated papillomavirus sequences, we designed a series of primers that would not be influenced by breakpoints for a high-resolution melting (HRM) PCR method to detect the genome methylation...
2018: Clinical Epigenetics
Ruchuon Yokchom, Somsak Laiwejpithaya, Weerakanya Maneeprakorn, Satita Tapaneeyakorn, Jundee Rabablert, Tararaj Dharakul
The aim of this study was to develop a paper-based immunosensor for cervical cancer screening, with signal amplification by multifunctionalized gold nanoparticles (AuNPs). The AuNPs were functionalized with a highly specific antibody to the p16INK4a cancer biomarker. The signal was amplified using a combination of the peroxidase activity of horseradish peroxidase (HRP) enzyme-antibody conjugate and the peroxidase-like activity of the AuNPs. The immune complex of p16INK4a protein and multifunctionalized AuNPs was deposited on the nitrocellulose membrane, and a positive result was generated by catalytic oxidation of peroxidase enzyme substrate 3,3',5,5'-Tetramethylbenzidine (TMB)...
February 3, 2018: Nanomedicine: Nanotechnology, Biology, and Medicine
Abraham Pedroza-Torres, Alma D Campos-Parra, Oliver Millan-Catalan, Yahir A Loissell-Baltazar, Horacio Zamudio-Meza, David Cantú de León, Gonzalo Montalvo-Esquivel, David Isla-Ortiz, Luis A Herrera, Óscar Ángeles-Zaragoza, Guadalupe Robelo-Romero, Ángel Herrera-Gómez, Carlos Pérez-Plasencia
Cervical cancer (CC) is one of the most common cancers diagnosed in women worldwide, and it is estimated that ~500,000 new patients are diagnosed with cervical cancer annually and that ~270,000 deaths occur each year. Patients with cervical cancer are treated with different radiotherapy schedules, either alone or with adjuvant chemotherapy. Unfortunately, nearly 50% of all patients with cervical cancer do not respond to standard treatment due to tumor radioresistance. In this scenario, several microRNAs (miRNAs) have been associated with the acquisition of the radioresistance phenotype...
January 18, 2018: Oncology Reports
Pingping Tao, Hao Wen, Binlie Yang, Ai Zhang, Xiaohua Wu, Qing Li
MicroRNAs (miRs) are aberrantly expressed in various cancer types and have critical roles in their genesis and progression. miR-144 has been identified to be involved in the development of hepatocellular carcinoma and rectal cancer. However, the roles of miR-144 in cervical cancer and the underlying molecular mechanisms have remained elusive. The present study identified that miR-144 was significantly decreased in cervical cancer tissues compared with that in matched normal cervical tissues as well as in metastatic vs...
January 2018: Experimental and Therapeutic Medicine
Vishuda Laengsri, Usanee Kerdpin, Chotiros Plabplueng, Lertyot Treeratanapiboon, Pornlada Nuchnoi
Gynecologic malignant neoplasms are a severe health problem among female patients, of which cervical cancer (CC), in particular, is a common disease leading to high mortality rates. Despite extensive attempts by researchers to solve the molecular mystery of CC, the mechanisms of its pathogenesis remain unclear. Tumor markers used in the clinical laboratory, such as squamous cell carcinoma (SCC), cancer antigen (CA)-125, and CA19-9, provide some help in diagnosing patients with CC. However, finding new molecular markers with high sensitivity and specificity is necessary...
January 25, 2018: Laboratory Medicine
V N Saritha, V S Veena, K M Jagathnath Krishna, Thara Somanathan, K Sujathan
Cervical cancer continues to be a leading cancer among women in many parts of the world. Nation-wide screening with the Pap smear has not been implemented in India due to the lack of adequately trained cytologists. Identification of biomarkers to predict malignant potential of the identified low risk lesions is essential to avoid excessive retesting and follow up. The current study analyzed the expression patterns of DNA replication licensing proteins, proliferation inhibitor protein p16INK4A and tumor suppresser protein p63 in cervical tissues and smears to assess the ability of these proteins to predict progression...
January 27, 2018: Asian Pacific Journal of Cancer Prevention: APJCP
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