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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2006-7-24
pubmed:abstractText
The clinical course of B-cell chronic lymphocytic leukemia (B-CLL) is variable, and novel biologic parameters need to be added to the clinical staging systems to predict an indolent or aggressive outcome. We investigated the 70-kDa zeta-associated protein (ZAP-70), CD38, soluble CD23 (sCD23), and cytogenetics in 289 patients with B-CLL. Both a shorter progression-free survival (PFS) and overall survival (OS) were observed in ZAP-70(+) (P < .001), in CD38(+) (P < .001) and in sCD23(+) patients (P < .001 and P = .013, respectively). ZAP-70(+)CD38(+) or ZAP-70(+) patients with an unmutated IgV(H) status showed both a shorter PFS (P < .001) and OS (P < .001 and P < .001, respectively) as compared with ZAP-70(-)/CD38(-) or ZAP-70(-) patients with mutated IgV(H) genes. Discordant patients showed an intermediate outcome. Note, ZAP-70(+) patients even if CD38(-) or mutated showed a shorter PFS, whereas ZAP-70(-) patients even if CD38(+) or unmutated had a longer PFS. Furthermore, ZAP-70 positivity was associated with a shorter PFS both within normal karyotype (P < .001) and within the poor-risk cytogenetic subset (P = .02). The predictive value of ZAP-70 expression was confirmed in multivariate analysis. Thus, ZAP-70 protein determined by flow cytometry improves the prognostic significance of cytogenetics and appears to be a better predictor of outcomes than IgV(H) gene mutational status. On this line, we recommend and are also interested in conducting a prospective randomized trial of early intervention versus observation for ZAP-70(+) patients.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0006-4971
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
108
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
853-61
pubmed:dateRevised
2009-11-19
pubmed:meshHeading
pubmed-meshheading:16601244-Adult, pubmed-meshheading:16601244-Aged, pubmed-meshheading:16601244-Aged, 80 and over, pubmed-meshheading:16601244-Antigens, CD38, pubmed-meshheading:16601244-Cytogenetic Analysis, pubmed-meshheading:16601244-Female, pubmed-meshheading:16601244-Flow Cytometry, pubmed-meshheading:16601244-Gene Expression Regulation, Leukemic, pubmed-meshheading:16601244-Humans, pubmed-meshheading:16601244-Immunoglobulin Variable Region, pubmed-meshheading:16601244-Leukemia, Lymphocytic, Chronic, B-Cell, pubmed-meshheading:16601244-Male, pubmed-meshheading:16601244-Middle Aged, pubmed-meshheading:16601244-Mutation, pubmed-meshheading:16601244-Predictive Value of Tests, pubmed-meshheading:16601244-Prognosis, pubmed-meshheading:16601244-Receptors, IgE, pubmed-meshheading:16601244-ZAP-70 Protein-Tyrosine Kinase
pubmed:year
2006
pubmed:articleTitle
Clinical significance of ZAP-70 protein expression in B-cell chronic lymphocytic leukemia.
pubmed:affiliation
Cattedra di Ematologia, Università Tor Vergata, Ospedale S Eugenio, Via Fiume Giallo, 430 MA, 00144 Roma, Rome, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't