Abstract:
:We analysed human anti-mouse antibodies (HAMA) in 12 patients (six with multiple myeloma (MM) and six with metastatic renal cell carcinoma (MRCC) who were treated with B-E8, an IgG1 MoAb against IL-6. Efficiency of the treatment was evidenced by the drop in the serum levels of C-reactive protein (CRP), the in vivo production of which is under the control of IL-6. Three patients with MM and the six patients with MRCC became immunized to the injected MoAb. HAMA appeared between days 7 and 15 after the beginning of the treatment. The nine patients made IgG antibodies; four also made IgM. All immunized patients made anti-idiotype antibodies specific to B-E8. Two of them also developed HAMA directed to murine IgG1 isotype; in these two patients B-E8 MoAb cleared rapidly from the circulation with loss of treatment efficiency. In the patients who developed only anti-idiotype antibodies, serum levels of B-E8 remained unchanged and CRP production remained inhibited, indicating that treatment remained efficient in the presence of HAMA. Circulating B-E8 MoAbs were still able to bind to IL-6 and to inhibit IL-6-dependent proliferation despite the presence of anti-idiotypic HAMA. Therefore, in contrast to HAMA produced against MoAb directed against cellular targets, HAMA against anti-IL-6 MoAb idiotopes led neither to clearance nor to functional inactivation of the injected MoAb. This was further shown by resuming the B-E8 treatment with success in a patient who still had anti-idiotypic HAMA.
journal_name
Clin Exp Immunoljournal_title
Clinical and experimental immunologyauthors
Legouffe E,Liautard J,Gaillard JP,Rossi JF,Wijdenes J,Bataille R,Klein B,Brochier Jdoi
10.1111/j.1365-2249.1994.tb06145.xsubject
Has Abstractpub_date
1994-11-01 00:00:00pages
323-9issue
2eissn
0009-9104issn
1365-2249journal_volume
98pub_type
杂志文章abstract::The lymphokine profiles were determined in the skin lesions of the three distinct clinical forms of American cutaneous leishmaniasis (ACL), using a reverse transcriptase polymerase chain reaction (RT-PCR) and primers for various lymphokines. The message for interferon-gamma (IFN-gamma), tumour necrosis factor-beta (TN...
journal_title:Clinical and experimental immunology
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abstract::The aim of this study was to investigate the role of IL-12 in patients with RA. IL-12 (p70) and its associated cytokines were measured in sera and synovial fluid (SF) using an enzyme-linked immunosorbent method. Seven American College of Rheumatology (ACR) core set measures as well as IL-12 levels were sequentially mo...
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journal_title:Clinical and experimental immunology
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1978-08-01 00:00:00
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journal_title:Clinical and experimental immunology
pub_type: 临床试验,杂志文章,随机对照试验
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1989-03-01 00:00:00
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
更新日期:1987-10-01 00:00:00
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journal_title:Clinical and experimental immunology
pub_type: 杂志文章
doi:
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