TY - JOUR
T1 - Baff serum level predicts time to first treatment in early chronic lymphocytic leukemia
AU - Molica, Stefano
AU - Digiesi, Giovanna
AU - Battaglia, Caterina
AU - Cutrona, Giovanna
AU - Antenucci, Anna
AU - Molica, Matteo
AU - Giannarelli, Diana
AU - Sperduti, Isabella
AU - Gentile, Massimo
AU - Morabito, Fortunato
AU - Ferrarini, Manlio
PY - 2010/10
Y1 - 2010/10
N2 - We analyzed the correlation between well-established biological parameters of prognostic relevance in B-cell chronic lymphocytic leukemia (CLL) [i.e. mutational status of the immunoglobulin heavy chain variable region (IgVH), ZAP-70 and CD38 expression] and serum levels of B cell-activating factor (BAFF of the TNF family) by evaluating the impact of these variables on the time to first treatment (TFT) in a series of 169 previously untreated CLL patients in Binet stage A. Higher levels of BAFF were more frequently associated with female gender (P = 0.02), younger age (P = 0.01), Rai stage 0 (P = 0.002), higher platelet count (P = 0.005), mutated IgVH disease (P = 0.002), higher occurrence of normal cytogenetic profile or presence of 13q deletion (P = 0.02), low ZAP-70- (P = 0.003), and CD38-expression (P = 0.02). Maximally selected log-rank statistic plot identified a serum BAFF concentration of 0.313 ng/mL as the best cut-off (P <0.0001). This threshold recognized two subsets of patients with different TFT (P <0.0001). Because in multivariate analysis soluble BAFF [Hazard ratio (HR), 8.23; confidence Interval (CI) 95%,3.0-22.6, P <0.0001] and mutational status of IgVH (HR = 2.60; CI 95% 1.10-6.14, P = 0.03) maintained the discriminating power their combined effect on clinical outcome was assessed. When three groups were considered: (1) low-risk (n = 93), patients with concordant IgVHmut and higher soluble BAFF; (2) intermediate-risk (n = 50), patients with IgVHmut and low BAFF levels or IgVHunmut and soluble higher BAFF;(3) high-risk (n = 26), patients with concordant IgVH unmut and low soluble BAFF, the 2-yr TFTs were, respectively, 95%, 85%, and 41% (P <0.0001). In conclusion, our results indicate that in early B-cell CLL, the biological profile including among other parameters soluble BAFF may provide a useful insight into the complex interrelationship of prognostic variables.
AB - We analyzed the correlation between well-established biological parameters of prognostic relevance in B-cell chronic lymphocytic leukemia (CLL) [i.e. mutational status of the immunoglobulin heavy chain variable region (IgVH), ZAP-70 and CD38 expression] and serum levels of B cell-activating factor (BAFF of the TNF family) by evaluating the impact of these variables on the time to first treatment (TFT) in a series of 169 previously untreated CLL patients in Binet stage A. Higher levels of BAFF were more frequently associated with female gender (P = 0.02), younger age (P = 0.01), Rai stage 0 (P = 0.002), higher platelet count (P = 0.005), mutated IgVH disease (P = 0.002), higher occurrence of normal cytogenetic profile or presence of 13q deletion (P = 0.02), low ZAP-70- (P = 0.003), and CD38-expression (P = 0.02). Maximally selected log-rank statistic plot identified a serum BAFF concentration of 0.313 ng/mL as the best cut-off (P <0.0001). This threshold recognized two subsets of patients with different TFT (P <0.0001). Because in multivariate analysis soluble BAFF [Hazard ratio (HR), 8.23; confidence Interval (CI) 95%,3.0-22.6, P <0.0001] and mutational status of IgVH (HR = 2.60; CI 95% 1.10-6.14, P = 0.03) maintained the discriminating power their combined effect on clinical outcome was assessed. When three groups were considered: (1) low-risk (n = 93), patients with concordant IgVHmut and higher soluble BAFF; (2) intermediate-risk (n = 50), patients with IgVHmut and low BAFF levels or IgVHunmut and soluble higher BAFF;(3) high-risk (n = 26), patients with concordant IgVH unmut and low soluble BAFF, the 2-yr TFTs were, respectively, 95%, 85%, and 41% (P <0.0001). In conclusion, our results indicate that in early B-cell CLL, the biological profile including among other parameters soluble BAFF may provide a useful insight into the complex interrelationship of prognostic variables.
KW - chronic lymphocytic leukemia
KW - prognosis
KW - soluble BAFF
UR - http://www.scopus.com/inward/record.url?scp=77956972088&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77956972088&partnerID=8YFLogxK
U2 - 10.1111/j.1600-0609.2010.01482.x
DO - 10.1111/j.1600-0609.2010.01482.x
M3 - Article
C2 - 20546021
AN - SCOPUS:77956972088
VL - 85
SP - 314
EP - 320
JO - European Journal of Haematology
JF - European Journal of Haematology
SN - 0902-4441
IS - 4
ER -