Abstract:
:Serum levels of cytokines and in vitro cytokine production by lymph node mononuclear cells (LNMC) were studied in four patients with angio-immunoblastic lymphadenopathy with dysproteinemia (AILD) or AILD-type T cell lymphoma. An increased level of serum interleukin-6 (IL-6) was detected on initial diagnosis in both of two patients examined. Spontaneous production of IL-6 by LNMC was detected in all four patients studied. Immunosuppressive therapy with cyclosporin A (CsA) was attempted in a 68-year-old man, who was refractory to intensive combination chemotherapy. The increased level of IL-6 in this patient decreased to normal within 3 weeks of CsA administration and the patient became symptom-free. One and a half months later, the IL-6 level gradually increased along with clinical exacerbation. We also measured serum levels of IL-1 alpha, IL-2, IL-4, IFN-alpha, gamma and TNF-alpha in parallel with IL-6, but these factors were only sporadically detected. IL-6 production by LNMC was stimulated by IL-2 but inhibited by CsA. These observations suggest that IL-6 is one of the important cytokines to be involved in the pathophysiology of AILD and CsA is a useful reagent for relieving symptoms.
journal_name
Leukemiajournal_title
Leukemiaauthors
Yamamura M,Honda M,Yamada Y,Itoyama T,Sohda H,Yubashi T,Momita S,Kamihira S,Ohmoto Y,Tomonaga Msubject
Has Abstractpub_date
1996-09-01 00:00:00pages
1504-8issue
9eissn
0887-6924issn
1476-5551journal_volume
10pub_type
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