Study of Proteins in Head and Neck Cancer Cells

March 10, 2017 updated by: Vanderbilt University Medical Center

Novel Protein Regulator of Tumor Suppressor ARF & NF-κB

RATIONALE: Studying proteins in head and neck cancer cells in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer.

PURPOSE: This laboratory study is looking at proteins in head and neck cancer cells.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

OBJECTIVES:

  • Define the function and mechanism of LZAP in regulating ARF.
  • Determine the mechanism and biological consequences of LZAP inhibition of NF-κB.
  • Determine if LZAP has tumor suppressor activity by conditional targeting of LZAP in mice.

OUTLINE: Using molecular laboratory techniques, this study examines the biochemical mechanisms by which LZAP activates transcriptional, tumor suppressive activity (both p53-dependent and p53-independent) of ARF and inhibits transcriptional, tumorigenic activity of NF-kB. LZAP regulation of newly identified ARF activities, such as S-phase delay and ARF-mediated B23 degradation are also evaluated. LZAP's tumor suppressive activity is assessed in vivo using a conditional knockout vector to target LZAP in mice and to observe for spontaneous and induced tumor formation. Laboratory analyses used to determine study endpoints include standard recombinant DNA, recombinant protein expression and purification, cell culture and transfection, cell labeling, reporter assays, flow cytometry, yeast-two hybrid, immunoprecipitation, immunoblotting, immunofluorescence, TUNEL assay, ELISA assay, Southern blotting, and protein and gene expression.

Study Type

Observational

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

  • United States
    • Tennessee
      • Nashville, Tennessee, United States, 37232-6838
        • Vanderbilt-Ingram Cancer Center
      • Nashville, Tennessee, United States, 37064
        • Vanderbilt-Ingram Cancer Center - Cool Springs
      • Nashville, Tennessee, United States, 37064
        • Vanderbilt-Ingram Cancer Center at Franklin

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

No older than 120 years (ADULT, OLDER_ADULT, CHILD)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

DISEASE CHARACTERISTICS:

  • Head and neck cancer tumor cell line

PATIENT CHARACTERISTICS:

  • Not specified

PRIOR CONCURRENT THERAPY:

  • Not specified

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?

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Function and mechanism of LZAP in regulating ARF
Mechanism and biological consequences of LZAP inhibition of NF-κB
Determination of LZAP tumor suppressor activity

Collaborators and Investigators

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

Sponsor

Vanderbilt University Medical Center

Collaborators

National Cancer Institute (NCI)

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, 2005

Study Registration Dates

First Submitted

May 9, 2009

First Submitted That Met QC Criteria

May 9, 2009

First Posted (ESTIMATE)

May 12, 2009

Study Record Updates

Last Update Posted (ACTUAL)

March 14, 2017

Last Update Submitted That Met QC Criteria

March 10, 2017

Last Verified

March 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CDR0000558974
  • P30CA068485 (U.S. NIH Grant/Contract)
  • VU-VICC-HN-0529
  • VU-VICC-IRB-050259

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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