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Natural Monoclonal Antibodies and Cancer

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Immunity is responsible for recognition and elimination of infectious particles and for removal of cellular waste, modified self structures and transformed cells. Innate or natural immunity acts as a first line defense and is also the link to acquired immunity and memory. By using the human hybridoma technology, a series of monoclonal antibodies and several new tumor-specific targets could be identified. A striking phenomenon of immunity against malignant cells is that all so far isolated tumor-specific antibodies were germ-line coded natural IgM antibodies. And neither in animals nor in humans affinity-maturated tumor-specific IgG antibodies have been detected so far. These IgM´s preferentially bind to carbohydrate epitopes on post-transcriptionally modified surface receptors, which are recently patented and preferentially remove malignant cells by inducing apoptosis to avoid inflammatory processes. Our “biology-” or “function-driven” method represents a unique yet powerful approach compared to the typical approaches on screening compounds or antibodies against non-validated targets (mostly differentially expressed). Moreover, the approach creates a competitive patenting strategy of creating proprietary antibodies and validated targets at the same time, which has the potential of further streamlining the discovery of new cancer therapies.

Keywords: Natural IgM antibodies; autoimmunity; cancer; immune surveillance

Document Type: Research Article

Publication date: June 1, 2008

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  • Recent Patents on Anti-Cancer Drug Discovery publishes review articles on recent patents in the field of anti-cancer drug discovery e.g. novel bioactive compounds, analogs & targets. A selection of important and recent patents on anti-cancer drug discovery is also included in the journal. The journal is essential reading for all researchers involved in anti-cancer drug design and discovery.
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