Temporary increase in serum beta 2-microglobulin during treatment with interferon-alpha for AIDS-associated Kaposi's sarcoma

R. de Wit, P. J. Bakker, P. Reiss, F. J. Hoek, J. M. Lange, J. Goudsmit, K. H. Veenhof

Research output: Contribution to JournalComment / Letter to the editorAcademic

7 Citations (Scopus)


Beta 2-microglobulin (beta 2-M) levels were determined in the serum of 24 patients treated with high-dose human recombinant interferon-alpha (IFN alpha) for AIDS-associated Kaposi's sarcoma. There was a significant increase in serum beta 2-M levels, irrespective of the response to treatment. However, the increase of serum beta 2-M levels in responders appeared to be more pronounced than in those with progressive disease, but this difference was not significant. The increase was only found during the initial 8 weeks; thereafter, beta 2-M levels declined in patients with continuing clinical improvement during ongoing treatment with IFN alpha. This may have been related to IFN alpha dose modification at 8 weeks for all patients. The initial rise in serum beta 2-M might be related to the immunomodulation properties of IFN alpha. Because serum beta 2-M levels were also enhanced in non-responders, this rise does not demonstrate that immunomodulation by IFN alpha is a mechanism of anti-tumour activity in AIDS-associated Kaposi's sarcoma
Original languageEnglish
Pages (from-to)459-462
JournalAIDS (London, England)
Issue number5
Publication statusPublished - 1990

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