Leukemia
Conditions
Keywords
adult acute myeloid leukemia in remission, recurrent adult acute myeloid leukemia, adult acute myeloid leukemia with 11q23 (MLL) abnormalities, adult acute myeloid leukemia with inv(16)(p13;q22), adult acute myeloid leukemia with t(15;17)(q22;q12), adult acute myeloid leukemia with t(16;16)(p13;q22), adult acute myeloid leukemia with t(8;21)(q22;q22)
Brief summary
RATIONALE: Studying samples of blood and bone marrow from patients with cancer in the laboratory may help doctors predict response in patients previously treated with interleukin-2. PURPOSE: This laboratory study is looking at the relationship between natural killer cells' ability to kill leukemia cells and the outcome of patients with acute myeloid leukemia previously treated with interleukin-2.
Detailed description
OBJECTIVES: * Correlate the in vitro lysis of autologous pre-treatment leukemic blast cells by interleukin-2 (IL-2)-expanded natural killer (NK) cells with relapse-free survival of patients with acute myeloid leukemia (AML) who were treated with interleukin-2 (IL-2). * Correlate the expression of inhibitory (MHC class I) and activating ligands on AML blast cells with relapse-free survival of these patients. * Correlate the expression of activating and inhibitory NK receptors on IL-2-expanded cells with relapse-free survival of these patients. * Compare the susceptibility to autologous NK cell lysis of leukemic blasts obtained at diagnosis with those blasts obtained at relapse of these patients. OUTLINE: This is a multicenter study. Patients are stratified according to age (\< 60 vs ≥ 60 years) and cytogenetic risk category (favorable vs average vs poor). Previously banked tissue samples of leukemic blast cells from bone marrow and natural killer (NK) cells from peripheral blood mononuclear cells are thawed and analyzed. Surface expression on leukemic blasts of co-stimulatory molecules, known activating NKG2D ligands, and MHC class I inhibitory ligands to NK cell receptors are quantified by monoclonal antibody analysis and flow cytometry. Mean cell fluorescence intensity (MCFI) of each ligand is correlated with relapse-free survival of the patients.
Interventions
OTHERlaboratory biomarker analysis
OTHERflow cytometry
OTHERimmunologic technique
Sponsors
National Cancer Institute (NCI)
Alliance for Clinical Trials in Oncology
Study design
Observational model
CASE_ONLY
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
15 Years to No maximum
Healthy volunteers
No
Inclusion criteria
DISEASE CHARACTERISTICS: * Diagnosis of acute myeloid leukemia * Prior treatment with interleukin-2 required * Previously enrolled on CLB-9621, CLB-9720, or CALGB-19808 * Previously consented to companion Leukemia Tissue Bank Protocol CALGB-9665 and stored the following specimens: * Bone marrow blast cells procured at diagnosis and at relapse (when available) * Peripheral blood mononuclear cells obtained in remission PATIENT CHARACTERISTICS: Age * 15 and over
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Correlation of in vitro lysis of autologous pre-treatment acute myeloid leukemia (AML) blasts with relapse-free survival | Up to 10 years |
| Correlation of expression of inhibitory and activating ligands on AML blast cells with relapse-free survival | Up to 10 years |
| Correlation of expression of activating and inhibitory natural killer (NK) receptors on interleukin-2-expanded cells with relapse-free survival | Up to 10 years |
| Comparison of the susceptibility to autologous NK cell lysis of leukemic blasts obtained at diagnosis with those blasts obtained at relapse | Up to 10 years |
Countries
United States
Outcome results
None listed