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Idiotype-specific intravenous immunoglobulin (IVIG) for therapy of autoimmune diseases

Miri Blank1, Tomer Bashi, Yehuda Shoenfeld

  • 1Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Aviv University, Tel-Aviv, Israel.

Methods in Molecular Biology (Clifton, N.J.)
|September 17, 2013
PubMed

Intravenous immunoglobulin (IVIG) is used successfully for therapy of inflammatory and autoimmune diseases, especially in cases of conventional therapy resistance. Within the broad spectrum of immunomodulatory activities of IVIG in vitro and in vivo, the anti-idiotypic activity, neutralizing the autoimmune disease related idiotypes, is one of the main mechanism. We and others have proven that from the IVIG composition, diverse fractions of autoimmune disease specific IVIG can be affinity purified (sIVIG). This sIVIG was shown to be more efficient than the whole compound of IVIG in experimental animal models of autoimmune diseases.The affinity purification of disease sIVIG encompasses three stages. The first stage is to construct an autoantigen column for affinity purification of the autoantibodies. In the second stage the purified autoantibodies are used to construct a new column composed of the autoantibodies. The later is utilized for affinity purification of anti-autoantibodies (anti- idiotypes) IVIG defined as autoimmune disease specific IVIG- sIVIG.

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