Identifying Early Lung Cancer Cells in Malignant Pleural Effusion Samples From Patients With Primary Lung Cancer

Brief Summary

Official Title: “Isolation and Identification of Lung Cancer Precursor Cells From Malignant Pleural Effusion Specimens”

RATIONALE: Studying samples of pleural fluid in the laboratory from patients with lung cancer may help doctors identify early lung cancer cells. It may also help the study of lung cancer in the future.

PURPOSE: This laboratory study is looking at malignant pleural effusion samples from patients with primary lung cancer to see if early lung cancer cells can be identified.

  • Study Type: Observational
  • Study Design: Time Perspective: Retrospective

Detailed Clinical Trial Description

OBJECTIVES:

- Isolate and identify lung cancer precursor cells in discarded pleural fluid specimens obtained during routine thoracentesis procedures for the diagnosis and treatment of malignant pleural effusions.

OUTLINE: Malignant pleural effusion specimens obtained from the Pathology Department at the University Hospitals of Cleveland are analyzed using an immunomagnetic bead enrichment assay to isolate cells of epithelial origin. The isolated cells are then stained with fluorescent DNA binding dye, Hoechst 33342, and other markers (i.e., CD133, CD24/CD44) and sorted by flow cytometry into progenitor and nonprogenitor subpopulations. The sorted subpopulations are separated and examined functionally by in vitro and in vivo studies. Sphere culture studies are also performed on the sorted subpopulations. The specimens may also be utilized for transcriptional profiling studies, RNAi studies, and for the establishment of long-term cultures and cell lines. DNA is also isolated and stored from tumor and nonepithelial normal cell compartments for future genetic studies on known and unidentified genetic abnormalities contributing to the development of lung cancer, such as EGFR, ErbB2, K-ras, and p53 mutational status.

Interventions Used in this Clinical Trial

  • Genetic: microarray analysis
    • analyzed using an immunomagnetic bead enrichment assay to isolate cells of epithelial origin
  • Genetic: mutation analysis
    • analyzed using an immunomagnetic bead enrichment assay to isolate cells of epithelial origin
  • Other: flow cytometry
    • analyzed using an immunomagnetic bead enrichment assay to isolate cells of epithelial origin
  • Other: immunologic technique
    • analyzed using an immunomagnetic bead enrichment assay to isolate cells of epithelial origin

Outcome Measures for this Clinical Trial

Primary Measures

  • Isolation and identification of lung cancer precursor cells in malignant pleural effusion specimens
    • Safety Issue?: No

Criteria for Participation in this Clinical Trial

DISEASE CHARACTERISTICS:

  • Cytologically positive malignant pleural effusion secondary to primary small cell or non-small cell lung cancer
  • Recruited from the Division of Hematology/Oncology, the Multidisciplinary Thoracic Oncology Group of Ireland Cancer Center, or the inpatient or outpatient units of Case Medical Center-University Hospitals

PATIENT CHARACTERISTICS:

  • Not specified

PRIOR CONCURRENT THERAPY:

  • Not specified

Gender Eligibility for this Clinical Trial: Both

Minimum Age for this Clinical Trial: N/A

Maximum Age for this Clinical Trial: N/A

Are Healthy Volunteers Accepted for this Clinical Trial: No

Clinical Trial Investigator Information

  • Lead Sponsor
    • Case Comprehensive Cancer Center
  • Collaborator
    • National Cancer Institute (NCI)
  • Provider of Information About this Clinical Study
    • Sponsor
  • Overall Official(s)
    • Balazs Halmos, MD, Principal Investigator, Case Medical Center, University Hospitals Seidman Cancer Center, Case Comprehensive Cancer Center

Source

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The URL of this page is:
http://clinicaltrialsfeeds.org/clinical-trials/show/NCT00897143