Serum soluble interleukin-2 receptor levels in hairy cell leukaemia as a marker of tumour burden with prognostic value and as a tool for disease monitoring.

ABSTRACT: Leukaemic cells from hairy cell leukaemia (HCL) secrete a soluble form of the interleukin-2 receptor (sIL-2R) which is measurable in serum. Previous evidence suggested that sIL-2R may correlate well with tumour burden and demonstrated a reduction in sIL-2R levels after therapy with recombinant interferon-α2. We evaluated the role of sIL-2R as a new prognostic factor and as a tool for disease monitoring. sIL-2R correlated well with other markers of neoplastic bulk and markedly decreased after treatment, with lower levels achieved in patients reaching complete remission (p = 0.002) or negative minimal residual disease (MRD, p = 0.034). Post-treatment levels ≤827 kU/L were strongly predictive of longer time to next treatment (TTNT) (median NR vs. 4.87 years; hazard ratio [HR]: 0.10; 95% confi

SUBMITTER: Angotzi F 

PROVIDER: S-EPMC12512071 | biostudies-literature | 2025 Oct

REPOSITORIES: biostudies-literature