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Objective Biologically active cell penetrating peptides (CPPs) are an emerging class of therapeutic agent. The wasp venom peptide mastoparan is an established CPP that modulates mitochondrial activity and triggers caspase-dependent apoptosis in cancer cells, as does the mastoparan analogue mitoparan (mitP). Mitochondrial depolarisation and activation of the caspase cascade also underpins the action...
CC and CXC chemokine receptor signalling networks are regulated in different ways. Here we show that intracellular calcium release and cell migration occur independent of Gβγ activation in response to CCL3, whereas CXCL11 induced migration of activated T-lymphocytes depends on Gβγ activation. Treatment of a range of cell types with gallein, a pharmacological inhibitor of Gβγ signalling, did not result...
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