Study of Proteins in Head and Neck Cancer Cells

NCT ID: NCT00896948

Last Updated: 2017-03-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Study Classification

OBSERVATIONAL

Study Start Date

2005-05-31

Brief Summary

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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.

Detailed Description

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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.

Conditions

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Head and Neck Cancer

Interventions

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Southern blotting

Intervention Type GENETIC

TdT-mediated dUTP nick end labeling assay

Intervention Type GENETIC

gene expression analysis

Intervention Type GENETIC

protein expression analysis

Intervention Type GENETIC

flow cytometry

Intervention Type OTHER

fluorescent antibody technique

Intervention Type OTHER

immunoenzyme technique

Intervention Type OTHER

immunohistochemistry staining method

Intervention Type OTHER

immunologic technique

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

DISEASE CHARACTERISTICS:

* Head and neck cancer tumor cell line

PATIENT CHARACTERISTICS:

* Not specified

PRIOR CONCURRENT THERAPY:

* Not specified
Maximum Eligible Age

120 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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National Cancer Institute (NCI)

NIH

Sponsor Role collaborator

Vanderbilt University Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Wendell G. Yarbrough, MD, FACS

Role: STUDY_CHAIR

Vanderbilt-Ingram Cancer Center

Locations

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Vanderbilt-Ingram Cancer Center - Cool Springs

Nashville, Tennessee, United States

Site Status

Vanderbilt-Ingram Cancer Center at Franklin

Nashville, Tennessee, United States

Site Status

Vanderbilt-Ingram Cancer Center

Nashville, Tennessee, United States

Site Status

Countries

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United States

Other Identifiers

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P30CA068485

Identifier Type: NIH

Identifier Source: secondary_id

View Link

VU-VICC-HN-0529

Identifier Type: -

Identifier Source: secondary_id

VU-VICC-IRB-050259

Identifier Type: -

Identifier Source: secondary_id

CDR0000558974

Identifier Type: -

Identifier Source: org_study_id

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