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Lipid rafts and clusters of apoptotic signaling molecule-enriched rafts in cancer therapy.

There is an imperative need to overcome the rather poor outcomes of current cancer chemotherapy with further development of novel targets and drugs. Direct activation of the cancer cell apoptotic machinery constitutes an appealing approach. Recent findings have shown that apoptosis can be triggered by co-aggregation of lipid rafts with death receptors and downstream signaling molecules, thus facilitating their interactions to convey apoptotic signals. We postulate this cluster of apoptotic signaling molecule-enriched rafts (CASMER) as a novel supramolecular entity that modulates apoptosis, representing a new target in cancer therapy. The development of drugs that target lipid rafts leading to the formation of clusters of apoptotic signaling molecule-enriched rafts offers new opportunities for therapeutic intervention in cancer therapy.