ROLE OF MICRORNA-155 AS A DIAGNOSTIC BIOMARKER FOR HUMAN PAPILLOMAVIRUS ASSOCIATED CERVICAL CANCER

2021 ◽  
Vol 74 (9) ◽  
pp. 2301-2304
Author(s):  
Noor A. Jihad ◽  
Yasir W. Issa
Keyword(s):  
Cervical Cancer ◽  
Control Group ◽  
Cancer Tissue ◽  
Diagnostic Biomarker ◽  
Tissue Samples ◽  
Formalin Fixed Paraffin ◽  
Hpv Status ◽  
Formalin Fixed Paraffin Embedded ◽  
Cancer Tissues

The aim: This study was designed to investigate the potential role of miRNA-155 in the pathogenesis of HPV-induced cervical cancer. Materials and methods: A total of 42 formalin-fixed paraffin-embedded (FFPE) cervical cancer tissue samples and 38 FFPE normal cervical tissue samples were used (they were collected at the Department of Pathology, Baghdad teaching hospital, Baghdad, Iraq, between January 2019 to January 2021). Following HPV testing and genotyping, the expression of miRNA-155 were evaluated by real-time PCR (qPCR). Results: A statistically significant up-regulation of miRNA-155 expression was observed in cervical cancer tissues compared to results in control group, regardless of HPV status and clinical grading. Conclusions: These data suggest that overexpression of miRNA-155 can delineate cervical cancer tissues from normal and may be a useful diagnostic biomarker for early detection of cervical cancer.

Feasibility of miR-9, miR-21, and miR-155 as alternative biomarkers in both HPV-positive and HPV-negative cervical cancers.

2017 ◽  
Vol 35 (7_suppl) ◽  
pp. 52-52 ◽  
Author(s):  
Dawn Chung ◽  
Sunyoung Park ◽  
Kiyoon Eom ◽  
Kwang Hwa Park ◽  
Hyeyoung Lee
Keyword(s):  
Cervical Cancer ◽  
Complex Disease ◽  
Hpv Infection ◽  
Diagnostic Tools ◽  
Cancer Tissue ◽  
Tissue Samples ◽  
Normal Tissues ◽  
Hpv E6 ◽  
Formalin Fixed Paraffin ◽  
Formalin Fixed Paraffin Embedded

52 Background: Cervical cancer is the second leading cause of death among female patients with cancer in the world. High risk human papillomavirus has causal roles in cervical cancer initiation and progression by deregulating several cellular processes. However, HPV infection is not sufficient for cervical carcinoma development. Therefore, other genetic and epigenetic factors may be involved in this complex disease, and the identification of which may lead to better diagnosis and treatment. Our aim was to analyze the expression of microRNAs in cervical cancer cases positive or negative for HPV E6/E7 mRNA, and to assess their diagnostic usefulness and relevance. Methods: The expression of three different microRNAs (miR-9, miR-21, and miR-155) in 52 formalin-fixed paraffin-embedded (FFPE) primary cervical cancer tissue samples and 50 FFPE normal cervical tissue samples were evaluated. Results: MiR-9, miR-21, and miR-155 were significantly overexpressed in cervical cancer tissues compared to normal tissues ( P < 0.001). MiR-9, miR-21, and miR-155 expression combined with the HPV E6/E7 mRNA assay showed sensitivities of 82.7 %, 92.3 %, and 84.6 % respectively, demonstrating their potential as diagnostic tools. Moreover, miR-21 and miR-155 were predictors showing a 7 fold and 10.3 fold higher risk for HPV E6/E7 negative patients with cervical cancer ( P = 0.024 and P = 0.017, respectively) while miR-155 was a predictor showing a 27.9 fold higher risk for HPV E6/E7 positive patients with cervical cancer ( P < 0.0001). Conclusions: There is a strong demand for additional, alternative molecular biomarkers for diagnosis and management of precancer patients. MiR-9, miR-21, and miR-155 may be helpful in the prediction of both HPV positive and HPV negative cases of cervical cancer.

Genetic diversity of HPV in tissues of tumors of the reproductive organs in women.

2017 ◽  
Vol 35 (15_suppl) ◽  
pp. e17001-e17001
Author(s):  
Galina Andreevna Nerodo ◽  
Oleg Ivanovich Kit ◽  
Tatiana Zykova ◽  
Victoria A. Ivanova ◽  
Vera P. Nikitina ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Cervical Cancer ◽  
Vulvar Cancer ◽  
Uterine Cancer ◽  
Reproductive Organs ◽  
Cancer Tissue ◽  
Hpv 16 ◽  
Tissue Samples ◽  
Tumor Tissues ◽  
Cancer Tissues

e17001 Background: The purpose of the study was to determine the rate of various HPV genotypes detection in tissues of tumors of the female reproductive organs. Methods: FFPE and frozen tissue samples of cervical cancer (n=126), vulvar cancer (n=113) and uterine cancer (n=29) were studied. DNAs of HPV 16, 18, 31, 33, 35, 39, 45, 51, 52, 56, 58 and 59 were determined by the Real-Time PCR. Results: HPV DNAs were found in 94.4% of samples of cervical cancer tissue, 65.5% - uterine cancer tissue and 28.3% - vulvar cancer tissue. HPV 16 and 18 were the most frequent (78.8%). HPV 16 in cervical cancer was detected in 60.9%, vulvar cancer – 59.0% and uterine cancer – 54.5%. On the contrary, HPV 18 was more frequent in uterine cancer (40.9%) and less frequent in cervical cancer (18.4%) and vulvar cancer (2.7%). Besides HPV 16 and 18, genotypes 31, 33, 35, 39, 45, 51, 52, 56 and 59 were found in tumor tissues as well (21.2% in total). HPV 35, 52 and 56 were the most frequently detected. Cervical cancer tissues showed the greatest genetic diversity of HPV and uterine cancer tissues – the lesser one (HPV 35 only, besides HPV 16 and 18). Combination of several HPV types was also more frequent in cervical cancer (37.0% of positive samples); in vulvar cancer – 18.8% and in uterine cancer – 15.8%. Conclusions: The results confirm HPV significance in carcinogenesis of cervical cancer, vulvar cancer and probably uterine cancer and show genetic diversity of HPV in different localizations of tumors of the female reproductive system.

scholarly journals The E545 Mutation of PIK3CA in Cervical Cancer Promotes the Survival by Several Different Pathways

2021 ◽  
Author(s):  
Yan Chen ◽  
Ma-Chi Yuan ◽  
Jia-Zhen Shi ◽  
Xia Zhao ◽  
Nan He ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Differential Expression ◽  
Bioinformatics Analysis ◽  
Cancer Tissue ◽  
Ppi Network ◽  
Tissue Samples ◽  
Cervical Cancer Tissue ◽  
Differential Expression Genes ◽  
High Degree

Abstract Backgroud: The E545 mutation of PIK3CA in Cervical cancer is frequently happened. But the role of E545 mutation of PIK3CA in Cervical cancer is not clear.Methods: In this study, we analysised the molecular signatures of E545 mutation Cervical cancer by bioinformatics methods.Results: We collected transcriptome sequencing results of 227 no mutation cervical cancer tissue samples and 36 mutation cervical cancer tissue samples, then analyzed the data combining bioinformatics methods. A total of 5 differential expression miRNAs were obtained, including 3 up-regulated miRNAs, 1 down-rugulated miRNA. A total of 174 differential expression genes were obtained, including 132 up-regulated genes, 40 down-rugulated genes. GO analysis suggested that the up-regulated DEGs were mainly enriched in transcription factor activity, leukotriene signaling pathway and so on. Besides, we constructed a PPI network with DEGs to screen the top hub genes with a relatively high degree of connectivity. Among them CAV1, KRT20, FOS, had a degree of connectivity larger than 5 and functioned as hub module genes to promote the survival of E545 mutation cervical cancer. We also identified different miRNA-DEG axis, including hsa-mir-449a-AXL, hsa-mir-508-CGA, COL15A1, NNMT, hsa-mir-552-CHST6, NWD1. These axis regulated the survival of E545 mutation cervical cancer togetherly. Conclusions: In conclusion, this study identified DEGs and screened the key genes and pathways closely related to E545 mutation in Cervical cancer by bioinformatics analysis, These results might hold promise for finding potential therapeutic targets of cervical cancer harboring E545 mutation of PI3KCA.

scholarly journals RNAscope in situ hybridization confirms mRNA integrity in formalin-fixed, paraffin-embedded cancer tissue samples

Oncotarget ◽  
2017 ◽  
Vol 8 (55) ◽  
pp. 93392-93403 ◽  
Author(s):  
Victoria Bingham ◽  
Leanne McIlreavey ◽  
Christine Greene ◽  
Edwina O’Doherty ◽  
Rebecca Clarke ◽  
...  
Keyword(s):  
In Situ Hybridization ◽  
Cancer Tissue ◽  
Tissue Samples ◽  
Formalin Fixed Paraffin ◽  
Formalin Fixed Paraffin Embedded ◽  
Formalin Fixed

SIRT1 promotes proliferation, migration, and invasion of cervical cancer cell and is upregulated by human papillomavirus 16 E7 oncoprotein

2021 ◽  
Author(s):  
Yujing Wang ◽  
Jing Wang ◽  
Chunmei Liu ◽  
Min Li
Keyword(s):  
Cervical Cancer ◽  
Stress Responses ◽  
Migration And Invasion ◽  
Cancer Tissue ◽  
Sirt1 Expression ◽  
Human Papillomavirus 16 ◽  
Siha Cells ◽  
Silent Information Regulator 1 ◽  
Cancer Tissues

SIRT1 (silent information regulator 1), a NAD+-dependent III class histone deacetylase, plays crucial roles in cell proliferation, apoptosis, senescence, metabolism, and stress responses. Nevertheless, the role of SIRT1 in tumorigenesis remains unclear. In the present study, we measured expression levels of SIRT1 and HPV16 E7 protein in cervical cancer tissue and calculated their correlations. We measured the effect of silencing SIRT1 on the proliferation, migration, invasion, and apoptosis in human cervical cancer SiHa cells. Immunohistochemistry results revealed that the expression of SIRT1 was upregulated with progression from CINII-III to cervical cancer, but was not expressed in normal cervical tissues and CINI. There was a positive correlation between SIRT1 expression and HPV16 E7 expression in cervical cancer tissues, and silencing of HPV16 E7 downregulated the expression of SIRT1. Depletion of SIRT1 significantly downregulated SIRT1 expression, and inhibited proliferation, migration, and invasion of SiHa cells, inducing apoptosis. Taken together, the data suggest that SIRT1 promotes cervical cancer carcinogenesis. SIRT1 inhibition is a potential treatment strategy for cervical cancer.

The potential role of fatty acids in prostate cancer determined by GC–MS analysis of formalin-fixed paraffin-embedded tissue samples

2021 ◽  
Vol 196 ◽  
pp. 113907
Author(s):  
Magdalena Buszewska-Forajta ◽  
Joanna Raczak-Gutknecht ◽  
Małgorzata Artymowicz ◽  
Wojciech Wesołowski ◽  
Kamil Buczkowski ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Fatty Acids ◽  
Potential Role ◽  
Tissue Samples ◽  
Ms Analysis ◽  
Formalin Fixed Paraffin ◽  
Formalin Fixed Paraffin Embedded ◽  
Formalin Fixed

scholarly journals Evaluation of the Anyplex II HPV28 Assay in the Detection of Human Papillomavirus in Archival Samples of Oropharyngeal Carcinomas

2019 ◽  
Vol 144 (5) ◽  
pp. 620-625 ◽  
Author(s):  
Francesca Rollo ◽  
Maria Gabriella Donà ◽  
Barbara Pichi ◽  
Raul Pellini ◽  
Renato Covello ◽  
...  
Keyword(s):  
Human Papillomavirus ◽  
Detection Rate ◽  
The Other ◽  
Hpv Dna ◽  
Formalin Fixed Paraffin ◽  
Hpv Status ◽  
Formalin Fixed Paraffin Embedded ◽  
Good Concordance ◽  
Cancer Tissues ◽  
Formalin Fixed

Context.— The improved survival and better response to treatments of human papillomavirus (HPV)–related oropharyngeal squamous cell carcinoma (OPSCC) highlight the need for effective tools in evaluating HPV status on formalin-fixed, paraffin-embedded (FFPE) cancer tissues. To date, there is no agreement regarding the most appropriate method for HPV testing on FFPE materials. Objective.— We aimed to investigate the performance of the Anyplex II HPV28 (Anyplex) on FFPE OPSCC tissues and to compare it with 2 other methods for HPV-DNA detection and p16 overexpression. Design.— One hundred sixty FFPE OPSCCs were evaluated, which had already been analyzed with the INNO-LiPA HPV assay, Xpert HPV assay, and p16 immunostaining. Results.— All the samples but 1 provided valid results with the Anyplex, which showed the highest HPV detection rate and a good concordance with all the other methods (κ = 0.75, 95% CI, 0.65–0.85 versus INNO-LiPA; κ = 0.80, 95% CI, 0.70–0.89 versus Xpert; κ = 0.76, 95% CI, 0.65–0.86 versus p16). Moreover, the HPV-driven fraction, based on HPV-DNA and p16 double positivity, was higher with Anyplex (83 of 159, 52.2%) than with the other 2 assays, that is, 78 of 156 (50.0%) for INNO-LiPA and 80 of 160 (50.0%) for Xpert. Conclusions.— Anyplex II HPV28 showed a higher HPV detection rate and HPV-associated fraction than the other methods used. This assay is suitable for HPV detection in archival OPSCC tissues.

scholarly journals Expression of miR-127, miR-154, and miR-183 in Medullary Thyroid Carcinoma Tumors

2021 ◽  
Author(s):  
Mahsa RAHMANI SAMANI ◽  
Marjan ZARIF-YEGANEH ◽  
Atefeh MEHRABI ◽  
Amir Nader EMAMI RAZAVI ◽  
Sara SHEIKHOLESLAMI ◽  
...  
Keyword(s):  
Thyroid Cancer ◽  
Rna Extraction ◽  
Control Group ◽  
Tissue Samples ◽  
Altered Expression ◽  
Medullary Thyroid ◽  
Formalin Fixed Paraffin ◽  
Tumor Tissues ◽  
Formalin Fixed Paraffin Embedded ◽  
Ffpe Tissues

Background: Medullary thyroid cancer (MTC) accounts for 5%–10% of all thyroid cancers, but causes 13% of all thyroid cancer related deaths. MicroRNAs (miRs) have key functions in the development and progression of MTC. Altered expression of some miRs has been reported in many human cancers, including Thyroid cancer. Therefore, we aimed to analyze the expression of miR-154, miR-183 and miR-127 in MTC tumor tissues. Methods: In this case-control study, 15 MTC Formalin-fixed, paraffin-embedded (FFPE) tissue samples and 15 adjacent normal thyroid FFPE tissues, as a control group, were collected from Taleghani, and Loghman Hakim Hospitals, Tehran, Iran since 2005 till 2015. After RNA extraction and cDNA synthesis, the expression of miR127, miR-154 and miR-183 was measured by quantitative Real-Time Polymerase Chain Reaction (qRT-PCR). Results: Our data showed a significant increase in the expression of miR-127 in MTC samples in comparison with the control group (P<0.05). Although miR-154 and miR-183 expression levels had increase expression in MTC tumors, this change was not statistically significant. Conclusion: The miR-127 could be considered as a prognostic, diagnostic and therapeutic marker for the management of MTC, and it is proposed for further investigation to fully establish the role of this miRNA in MTC.

scholarly journals Evaluation of Merkel Cell Polyomavirus DNA in Tissue Samples from Italian Patients with Diagnosis of MCC

Viruses ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 61
Author(s):  
Carla Prezioso ◽  
Raffaella Carletti ◽  
Francisco Obregon ◽  
Francesca Piacentini ◽  
Anna Maria Manicone ◽  
...  
Keyword(s):  
Point Mutations ◽  
Merkel Cell Polyomavirus ◽  
Merkel Cell ◽  
Tissue Samples ◽  
Metastatic Lesions ◽  
Formalin Fixed Paraffin ◽  
Formalin Fixed Paraffin Embedded ◽  
Metastatic Sites ◽  
Archived Specimens ◽  
Coding Control

Because the incidence of Merkel cell carcinoma (MCC) has increased significantly during the last 10 years and it is recognized that Merkel cell polyomavirus (MCPyV) and ultraviolet (UV) radiation represent two different etiological inputs sharing clinical, histopathological, and prognostic similar features, although with different prognosis, this study investigated the detection of MCPyV in skin and lymph nodes with histological diagnosis of MCC. Formalin-fixed paraffin-embedded tissue (FFPE) were retrieved from archived specimens and MCPyV non-coding control region (NCCR) and viral capsid protein 1 (VP1) sequences were amplified and sequenced. Results provide an interesting observation concerning the discrepancy between the MCPyV DNA status in primary and metastatic sites: in fact, in all cases in which primary and metastatic lesions were investigated, MCPyV DNA was detected only in the primary lesions. Our data further support the “hit-and-run” theory, also proposed by other authors, and may lead to speculation that in some MCCs the virus is only necessary for the process of tumor initiation and that further mutations may render the tumor independent from the virus. Few point mutations were detected in the NCCR and only silent mutations were observed in the VP1 sequence compared to the MCPyV MCC350 isolate. To unequivocally establish a role of MCPyV in malignancies, additional well-controlled investigations are required, and larger cohorts should be examined.

Sign in / Sign up

Export Citation Format

Share Document