Human Papillomavirus on Oral Tissue, Saliva and Serum (CDHPOTSS)

March 23, 2013 updated by: Adriana Demathé, UPECLIN HC FM Botucatu Unesp

Comparison of Detection of Human Papillomavirus on Tissue, Saliva and Serum

Human papillomavirus (HPV) is one of the most prevalent infections in the world with several millions of new cases diagnosed yearly. Oral HPV infection may be associated with different diseases of oral cavities including some cases of oropharyngeal cancer.

The aim of this report is to detect the presence of HPV DNA in samples of biopsies, oral swabs, saliva and serum of patient with oral squamous cell carcinoma (OSCC) and controls. We hoped to find there is correlation among the presence of HPV DNA in the several biological materials and if it is possible to use the saliva as screening to HPV DNA detection. The presence of tumor HPV DNA in blood may be of diagnostic and prognostic value.

Study Overview

Status

Completed

Conditions

Detailed Description

This study will made at the buccal cancer center of UNESP and involved forty patients (n = 40) and forty controls. Serum samples, oral swabs and saliva will collect at the date of diagnosis before therapy and will store at -80 ºC until analysis. Formalin-fixed paraffin-embedded oral squamous cell carcinoma tissues and other biologic samples will process with phenol/chloroform extraction method.

Tumors from 40 OSCC patients at the UNESP University will be obtained from biopsy with prior consent, along with corresponding venipuncture blood, saliva collection and exfoliated buccal cells samples. From controls will be obtained all samples except biopsy tissues. Clinical information including tumor location, stage, and nodal status will be recorded.

Clotted blood specimens will be centrifuged at low speed for 5 min, and the serum was stored at - 80 °C before DNA extraction. Serum samples (400 ml) will be used for DNA extraction. Whole saliva and exfoliated buccal cells will be digested in proteinase K at 48°C during two hours, serum and tumor tissue samples will be digested in proteinase K at 48°C overnight, followed by phenol/chloroform extraction and ethanol precipitation of DNA for all samples. After resuspension in 50 ml of distilled water, the mean working DNA concentrations will be 100-150 ng/ml per serum and tissues samples and 30-50 ng/ ml per whole saliva and exfoliated buccal cells samples. For beta-globin PCR will be used 150 to 300 ng of purified total cellular DNA, to assess the quality of the DNA using the PCR primers GH20 and PC04. After confirmation of the presence and integrity of genomic human DNA, the same amount of DNA will be testing for HPV DNA by nested polymerase chain reaction (PCR) in all samples. In first PCR round degenerate consensus primers MY11 and MY09 will be using to amplify fragments of 450 bp. HPV DNA will amplified in a second round by GP5+ and GP6+ primer sets. The other reaction components will be: 10.9 microlitres of ultra-pure water, 2.5 microlitres PCR buffer 10X, 4mM MgCl2, 15 pmol dNTPs and 1 unit of Platinum Taq DNA polymerase. Approximately 150-300 ng of genomic DNA from each sample will be add to the mixture. The same amount of Hela cells, with up to 4 copies of HPV-18 per cell, will be used as positive control for HPV infection. The negative control will be composed by all PCR components except DNA. The mixture underwent initial denaturation to 94ºC for 10 min, before 40 PCR cycles (94ºC for 1 min; 55ºC for 1 min; 72ºC for 40) and 72°C for 4 minutes. For nPCR, two microliters of the product from the first reaction will be used directly in a reaction containing: 0,02 mM of each primer GP5+ and GP6+(Invitrogen Life Technologies®, Brazil), which produce a 150 pb DNA fragment. The remaining reaction components and conditions will be as described for the first round of PCR, except for the annealing temperature that will be reduced to 43ºC. Ten microliters of the nPCR products will be fractionated by electrophoresis in a 8% polyacrylamide gel, for 3 hours at 100 volts. Band visualization will be performed by staining with silver nitrate solution. Samples will be scored as either HPV DNA-positive or negative based on the inspection of silver nitrate stained bands. PCR amplification will be performed in triplicates for each sample. Samples will be classified as positive or negative based on gel analysis.

Differences in proportion will be evaluated by means of Fisher's exact test. A P value of less then 0.05 will be considered statistically significant. These statistical calculations will be performed using SPSS, version 10.0, for Windows.

Study Type

Observational

Enrollment (Actual)

80

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Brazil
    • Sao Paulo
      • Aracatuba, Sao Paulo, Brazil, 16015050
        • Glauco Issamu Miyahara

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

30 years to 85 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

university dental care clinic patients with or without a condition

Description

Inclusion Criteria:

  • Pathological diagnosis of squamous cell carcinoma, presented lesions with primary site in the mouth or oropharynx;
  • Matched controls without a condition.

Exclusion Criteria:

  • Patients that received radiotherapy.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
GROUP OSCC

The study group is composed by patients with a condition that requires a procedure/surgery for oral squamous cell carcinoma treatment.

INTERVENTIONS: Collect blood, saliva and oral tissue.
CONTROL GROUP

Group without oral squamous cell carcinoma but with a condition that requires prosthetic procedure/surgery.

INTERVENTIONS: Collect blood, saliva and oral tissue.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
DNA HPV status (positive/negative)
Time Frame: six months
six months

Secondary Outcome Measures

Outcome Measure
Time Frame
clinical and pathological characteristics
Time Frame: six months
six months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

UPECLIN HC FM Botucatu Unesp

Investigators

  • Principal Investigator: Adriana Demathe, PhD, UNESP Dental School
  • Study Director: Glauco I Miyahara, PhD, UNESP Dental School

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2009

Primary Completion (ACTUAL)

January 1, 2010

Study Completion (ACTUAL)

December 1, 2010

Study Registration Dates

First Submitted

January 5, 2010

First Submitted That Met QC Criteria

January 5, 2010

First Posted (ESTIMATE)

January 6, 2010

Study Record Updates

Last Update Posted (ESTIMATE)

March 26, 2013

Last Update Submitted That Met QC Criteria

March 23, 2013

Last Verified

March 1, 2013

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • upeclin/FOA-Unesp-05

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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