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CD38 Expression and Variation as a Prognostic Factor Chronic Lymphocytic Leukemia
- Source :
- Clinical Laboratory. 62
- Publication Year :
- 2016
- Publisher :
- Clinical Laboratory Publications, 2016.
-
Abstract
- BACKGROUND In this study, we aimed to determine a cutoff level for CD38 that would aid us in identifying chronic lymphocytic leukemia patients in need of early therapy and predicting patients at sufficiently low risk who would likely exhibit a rapid improvement; we also aimed to find out if CD38 expression would show variability during disease course and determine the extent of CD38 expression. METHODS 124 patients were diagnosed with CLL. CD38 and ZAP-70 expression levels were measured with four color flowcytometry. Time from diagnosis to initial therapy was calculated for all patients. CD38 expression was studied for a second time during follow-up in 50 patients. RESULTS For cutoff levels of 7%, 20%, and 30%, CD38 expressions were 61.3%, 25%, and 24.2%, respectively. At all three cutoff levels there were significant correlations with all parameters except age between CD38+ vs. CD38- groups (p < 0.001). The comparative rates of starting therapy for cutoff levels of 7%, 20%, and 30% in CD38+ and CD38- groups were 77.5% vs. 6.25%; 100% vs. 30.7%, and 100% vs. 31.5%, respectively (p < 0.001). Multiple Cox Proportional Hazards Regression analysis: for a cutoff level of 7%, survival was affected by STAGE, ZAP70, and CD38. CONCLUSIONS A CD38 cutoff level of 7% determined by standardized laboratory techniques is an important prognostic marker. However, the number and frequency of repeat measurements of CD38 expression, and cutoff level of CD38 expression that significantly predict disease prognosis should be further determined by future cohort studies.
- Subjects :
- Adult
Male
0301 basic medicine
medicine.medical_specialty
Prognostic factor
Chronic lymphocytic leukemia
CD38
Early Therapy
Gastroenterology
General Biochemistry, Genetics and Molecular Biology
Time-to-Treatment
Cohort Studies
03 medical and health sciences
0302 clinical medicine
Reference Values
immune system diseases
hemic and lymphatic diseases
Internal medicine
medicine
Humans
Cutoff
Stage (cooking)
Aged
Retrospective Studies
Aged, 80 and over
Membrane Glycoproteins
ZAP-70 Protein-Tyrosine Kinase
business.industry
Age Factors
hemic and immune systems
Middle Aged
Flow Cytometry
Prognosis
medicine.disease
ADP-ribosyl Cyclase 1
Leukemia, Lymphocytic, Chronic, B-Cell
Survival Analysis
Cd38 expression
030104 developmental biology
030220 oncology & carcinogenesis
Regression Analysis
Female
business
Cohort study
Subjects
Details
- ISSN :
- 14336510
- Volume :
- 62
- Database :
- OpenAIRE
- Journal :
- Clinical Laboratory
- Accession number :
- edsair.doi.dedup.....695fcfa98f7b625bb003c88519523281