Use of serum soluble interleukin-2 receptor levels to monitor the progression of cutaneous T-cell lymphoma

J Am Acad Dermatol. 1998 Feb;38(2 Pt 1):207-20. doi: 10.1016/s0190-9622(98)70597-3.

Abstract

Background: The serum concentration of soluble alpha chain of the interleukin-2 receptor (sIL-2R) correlates with tumor burden in cutaneous T-cell lymphoma (CTCL). Therefore the sIL-2R level may be useful to monitor the condition of patients treated with extracorporeal photopheresis or other treatments.

Objective: Our goal was to determine the utility of serum sIL-2R as a test in monitoring of patients with advanced CTCL.

Methods: Serum sIL-2R was measured serially in 36 patients with advanced CTCL treated with extracorporeal photopheresis and other modalities (interferon alfa, methotrexate, topical nitrogen mustard, electron beam).

Results: Serum concentrations of sIL-2R as well as lactate dehydrogenase (LDH) correlated strongly with lymph node size, but only sIL-2R correlated significantly with the severity of skin manifestations in erythrodermic patients. In addition, serum sIL-2R, but not LDH, was significantly higher in patients with nodal involvement. The level of sIL-2R also was significantly higher in patients with large-cell transformation in the skin or lymph nodes compared with patients without transformed disease. During treatment, serum concentrations of both serum sIL-2R and LDH correlated with changes in clinical status, but only sIL-2R showed statistically significant differences in mean levels for different relative global response scores. Pretreatment levels of both sIL-2R and LDH correlated significantly with survival, but only sIL-2R retained significance when both were entered into the Cox proportionate hazards model.

Conclusion: The concentration of serum sIL-2R correlates well with disease status and is more useful than LDH or Sézary cell counts to monitor clinical change in patients with advanced CTCL. Moreover, our data suggest that sIL-2R is produced at a relatively low rate by tissue-based lymphoma cells, and that large-cell transformation in CTCL results in marked increase in sIL-2R production in some patients.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Biomarkers, Tumor / blood*
  • Disease Progression
  • Female
  • Humans
  • L-Lactate Dehydrogenase / blood
  • Lymphoma, T-Cell, Cutaneous / diagnosis
  • Lymphoma, T-Cell, Cutaneous / pathology
  • Lymphoma, T-Cell, Cutaneous / therapy
  • Male
  • Middle Aged
  • Photopheresis
  • Receptors, Interleukin-2 / blood*
  • Skin Neoplasms / diagnosis*
  • Skin Neoplasms / pathology
  • Skin Neoplasms / therapy

Substances

  • Biomarkers, Tumor
  • Receptors, Interleukin-2
  • L-Lactate Dehydrogenase