1553448
Last Update Posted: 2016-05-18
Recruiting has ended
All Genders accepted | Under 21 Years |
75 Estimated Participants | No Expanded Access |
Observational Study | Does not accept healthy volunteers |
Studying Gene Expression in Samples From Younger Patients With Neuroblastoma
RATIONALE: Studying samples of blood and tumor tissue from patients with cancer in the laboratory may help doctors learn more about changes that occur in DNA and identify biomarkers related to cancer. It may also help doctors find better ways to treat cancer.
PURPOSE: This research trial studies gene expression in samples from younger patients with neuroblastoma.
OBJECTIVES:
- Determine whether TβRIII expression and TGF-β signaling decrease in advanced-stage neuroblastoma (NBL) and whether these changes are confined to the Schwannian stroma.
- Determine whether sTβRIII levels and TGF-β signaling correlate with NBL stage, tumor stroma content, surface TβRIII expression, and TGF-β signaling.
OUTLINE: Archived paraffin-embedded tissue and plasma samples are analyzed for TβRIII expression, TGF-β signaling, and SMAD3 expression and phosphorylation by immunohistochemistry, enzyme-linked immunosorbent assay (ELISA), and other assays. Surface expression of TβRIII in the neuroblastic and stromal tumor components are correlated with matched circulating levels of soluble TβRIII. Results are then correlated with each patient's outcome data, including stage.
Eligibility
Relevant conditions:
Neoplastic Syndrome
Neuroblastoma
If you aren't sure if you meet the criteria above speak to your healthcare professional. Criteria may be updated but not reflected here, do not hesitate to contact the trial if you think are close to fitting criteria.
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Contact Information
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Data sourced from ClinicalTrials.gov