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Publication Type
Journal Article
Author, Analytic
Giusti, Ruthann M.; Maloney, Elizabeth M.; Hanchard, Barrie; Morgan, Owen St. C.; Steinberg, Seth M.; Wachter, Helmut; Williams, Elaine E.; Cranston, Beverley; Fuchs, Dietmar; Manns, Angela
Author Affiliation, Ana.
Pathology; Faculty of Medical Sciences
Article Title
Differential patterns of serum biomarkers of immune activation in human T-cell lymphotropic virus type I-associated myelopathy/tropical spastic paraparesis, and adult T-cell leukemia/lymphoma.
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Journal Title
Cancer Epidemiology, Biomarkers and Prevention
Translated Title
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Reprint Status
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Date of Publication
1996
Volume ID
5
Issue ID
9
Page(s)
699-704
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ISSN
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Notes
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Abstract
Adult T-cell leukemia/lymphoma (ATL) and human T-cell lymphotropic virus type I-associated myelopathy/tropical spastic paraparesis (HAM/TSP) are associated with differing patterns of immune dysfunction. Biomarkers of immune activation may correlate with perturbations of immune function associated with these diseases. A pilot cross-sectional study was conducted to assess four candidate biomarkers of immune activation. 2 -microglobulin, neopterin, tryptophan, and kynurenine levels were assayed in stored sera from asymptomatic, human T-cell leukemia virus type I (HTLV-I)-seronegative (HTLV-I-) and HTLV-I-seropositive (HTLV-I+) individuals, and ATL and HAM/TSP patients previously enrolled in seroepidemiological studies in Jamaica. Mean levels of 2-microglobulin, neopterin, and kynurenine were significantly elevated among ATL patients compared to the other study groups. Mean tryptophan levels were signigicantly lower among ATL and HAM/TSP patients than HTLV-I- and HTLV-I+ groups. No significant differences in biomarkers were found between HTLV-I- and HTLV-I+ groups. Among HAM/TSP patients, a significant association was found between elevated neopterin levels and symptoms of less than 4 years duration. In Cox proportional hazards regression modeling, neopterin and tryptophan were found to be independent predictors of survival among ATL patients. This study demonstrates a differential pattern of biomarkers of immune activation among ATL and HAM/TSP patients compared to HTLV-I- and HTLV-I+ individuals. Neopterin and tryptophan may be useful clinical indicators of disease severity and prognosis among HAM/TSP and ATL patients.....
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