Biomarkers in Blood and Tissue Samples From Patients With Newly Diagnosed Neuroblastoma
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Purpose
RATIONALE: Studying samples of blood and 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.
PURPOSE: This research trial studies biomarkers in blood and tissue samples from patients with newly diagnosed neuroblastoma.
| Condition | Intervention |
|---|---|
|
Neuroblastoma |
Genetic: RNA analysis Genetic: polymerase chain reaction Genetic: protein expression analysis Genetic: proteomic profiling Genetic: western blotting Other: enzyme-linked immunosorbent assay Other: immunohistochemistry staining method Other: laboratory biomarker analysis Other: liquid chromatography Other: mass spectrometry |
| Study Type: | Observational |
| Official Title: | Neuropeptide Y and Its Receptors in Neuroblastoma |
- Association of high expression of NPY and its Y2/Y5 Rs in NBs with poor outcome of the disease, advanced stage, increased vascularization and other unfavorable prognostic factors, such as TrkB expression and MYCN amplification [ Designated as safety issue: No ]
- BDNF/TrkB and TrkAIII up-regulate expression of NPY and its Rs [ Designated as safety issue: No ]
- NPY upregulates expression of the identified proteins in NB and their Rs in endothelial cells (ECs) [ Designated as safety issue: No ]
- Interaction between Y2 and Y5 receptors in NB and ECs sensitize them to NPY and amplify NPY-induced proliferation [ Designated as safety issue: No ]
- Blocking the NPY-Y2/Y5 pathway reduces NB growth and tumor vascularization [ Designated as safety issue: No ]
| Estimated Enrollment: | 300 |
| Study Start Date: | June 2011 |
| Estimated Primary Completion Date: | July 2011 (Final data collection date for primary outcome measure) |
OBJECTIVES:
- Determine the expression of neuropeptide Y (NPY) and its receptors (Rs) in human neuroblastoma (NB) tissues.
- Determine whether BDNF/TrkB and TrkAIII stimulate expression of NPY and its Rs.
- Determine whether NPY mediates BDNF- and TrkAIII-induced NB proliferation and survival.
- Determine neurotrophins' angiogenic actions.
- Identify factors released from NB cells upon NPY stimulation (proteomics).
- Determine whether NPY upregulates expression of the identified proteins in NB and their Rs in endothelial cells (ECs).
- Test whether inhibition of the identified pathways reduces angiogenic activity of NB-conditioned media.
- Determine the mechanisms of NYP actions and signaling pathways.
- Test whether blocking NPY-Y2/Y5 pathway reduces NB growth and vascularization in vivo.
OUTLINE: Archived tumor tissue and serum samples are analyzed for neuropeptide Y and its receptors (Y1, Y2, and Y5) expression, neuroblastoma prognostic factors (MYCN, TrkA, TrkAIII, TrkB, BDNF, and NGF), and angiogenic markers by real-time PCR, IHC, ELISA, radioimmunoassay (RIA), mitogenic assay, caspase 3/7 activity assay, western blots, liquid chromatography, tandem mass spectrometry, proteomic assays, and other assays. Results are then analyzed and compared with patients' clinical data, including stage of disease, its phenotype, prognostic markers, age and gender, and response to treatment.
Eligibility| Ages Eligible for Study: | 1 Year to 10 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
DISEASE CHARACTERISTICS:
- Children with newly diagnosed neuroblastoma or ganglioneuroblastoma
Samples from the Children's Oncology Group (COG) from patients enrolled in clinical trials in institutions in the USA, Canada, and Australia
- Paraffin-embedded tumor specimens, RNA isolated from tumor tissues, and patient serum must be available
PATIENT CHARACTERISTICS:
- Not specified
PRIOR CONCURRENT THERAPY:
- Not specified
Contacts and Locations
More Information
Additional Information:
No publications provided
| Responsible Party: | Peter C. Adamson, Children's Oncology Group - Group Chair Office |
| ClinicalTrials.gov Identifier: | NCT01387724 History of Changes |
| Other Study ID Numbers: | CDR0000703005, COG-ANBL11B1 |
| Study First Received: | July 1, 2011 |
| Last Updated: | July 7, 2011 |
| Health Authority: | United States: Federal Government |
Keywords provided by National Cancer Institute (NCI):
|
disseminated neuroblastoma localized resectable neuroblastoma localized unresectable neuroblastoma regional neuroblastoma stage 4S neuroblastoma |
Additional relevant MeSH terms:
|
Neuroblastoma Neuroectodermal Tumors, Primitive, Peripheral Neuroectodermal Tumors, Primitive Neoplasms, Neuroepithelial Neuroectodermal Tumors |
Neoplasms, Germ Cell and Embryonal Neoplasms by Histologic Type Neoplasms Neoplasms, Glandular and Epithelial Neoplasms, Nerve Tissue |
ClinicalTrials.gov processed this record on May 21, 2013