Soluble interleukin-2 receptors (sIL-2R) in Hodgkin's disease: outcome and clinical implications.
The aim of this study was to assess the prognostic role of soluble interleukin-2 receptors (sIL-2R) in Hodgkin's disease (HD) both in the achievement of complete remission (CR) and in predicting disease relapse. Between August 1988 and June 1993 sIL-2R serum levels were measured in 174 untreated patients; in 137 of them evaluation was repeated at the end of treatment and in 132 also during the follow-up. Baseline sIL-2R levels (mean+/-standard error) were significantly higher in patients than in 65 healthy control subjects (1842+/-129 U ml(-1) vs 420+/-10 U ml(-10, P< 0.0001). At the end of treatment 135 out of 137 evaluated patients achieved complete response (CR) and their mean sIL-2R serum levels were significantly lower than those at diagnosis (635+/-19 U ml(-1) vs 1795+/-122 U ml(-1), P=0.0001). After a median follow-up of 5 years, sIL-2R remained low in 114 patients in continuous CR, while they increased in 9 out of 12 patients (75%) who relapsed. However, a temporary increase was also observed in six patients (5%) still in CR. Treatment outcome in terms of freedom from progression was linearly related to sIL-2R levels. Our study confirms that patients with untreated HD have increased baseline levels of sIL-2R compared with healthy subjects and that their pretreatment values may be an indication of disease outcome similar to other conventional prognostic factors, such as number of involved sites, presence of B symptoms and extranodal extent.
Viviani
S
S
Division of Medical Oncology A, Istituto Nazionale Tumori, Milano, Italy.
Camerini
E
E
Bonfante
V
V
Santoro
A
A
Balzarotti
M
M
Fornier
M
M
Devizzi
L
L
Verderio
P
P
Valagussa
P
P
Bonadonna
G
G
D000293:Adolescent; D000328:Adult; D000368:Aged; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D014408:Biomarkers, Tumor / Q000097:blood*; D001761:Bleomycin / Q000008:administration & dosage; D003131:Combined Modality Therapy; D016001:Confidence Intervals; D003520:Cyclophosphamide / Q000008:administration & dosage; D003606:Dacarbazine / Q000008:administration & dosage; D018572:Disease-Free Survival; D004317:Doxorubicin / Q000008:administration & dosage; D015251:Epirubicin / Q000008:administration & dosage; D005047:Etoposide / Q000008:administration & dosage; D005260:Female; D006689:Hodgkin Disease / Q000097:blood* / Q000473:pathology / Q000628:therapy; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology; D008297:Male; D008466:Mechlorethamine / Q000008:administration & dosage; D008875:Middle Aged; D009367:Neoplasm Staging; D011241:Prednisone / Q000008:administration & dosage; D011344:Procarbazine / Q000008:administration & dosage; D015375:Receptors, Interleukin-2 / Q000097:blood*; D012008:Recurrence; D012016:Reference Values; D012189:Retrospective Studies; D014747:Vinblastine / Q000008:administration & dosage; D014750:Vincristine / Q000008:administration & dosage
D014408:Biomarkers, Tumor; D015375:Receptors, Interleukin-2; D001761:Bleomycin; D011344:Procarbazine; D015251:Epirubicin; D008466:Mechlorethamine; D014750:Vincristine; D014747:Vinblastine; D005047:Etoposide; D003606:Dacarbazine; D004317:Doxorubicin; D003520:Cyclophosphamide; D011241:Prednisone