Prognostic importance of serum soluble CD23 level in chronic lymphocytic leukemia (original) (raw)
Prognosis of B-cell chronic lymphocytic leukemia (CLL) is based on clinical staging whose limitation is the failure to assess whether the disease will progress or remain stable in early stage (Binet A, or Rai 0, I, II) patients. We previously reported that soluble CD23 (sCD23), a protein derived from the B-cell membrane CD23 Ag, is selectively elevated in the serum of CLL patients. This prospective study assessed the predictive value of serum sCD23 level measured at study entry on the overall survival of all CLL patients and on disease progression of stage Binet A patients. Prognostic value of repeated measurements of sCD23 over time in stage A patients was also analyzed. One hundred fifty-three CLL patients were prospectively followed with a median follow-up of 78 months. Eight clinical or biological parameters were collected from the date of the first sCD23 measurement. At study entry, by Cox model, Binet staging (P = .0001) and serum sCD23 level (P = .03) appeared as prognostic f...
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