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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Induction of myeloid differentiation of HL-60 cells with naphthalene sulfonamide calmodulin antagonists.

The naphthalene sulfonamide calmodulin antagonists, N-(6-aminohexyl)-5-chloro-1-naphthalenesulfonamide and N-(4-aminobutyl)-5-chloro-2-naphthalenesulfonamide, both induce limited myeloid differentiation of the human promyelocytic cell line, HL-60. In addition, these inhibitors augment the differentiation observed when HL-60 cells are induced with retinoic acid, dimethyl sulfoxide, or dibutyryl cyclic adenosine monophosphate. The dose-response curve for HL-60 differentiation was consistent with the published 50% inhibitory dose for inhibition of calmodulin-activated phosphodiesterase and with the calmodulin drug-binding potential of N-(6-aminohexyl)-5-chloro-1-naphthalenesulfonamide and N-(4-aminobutyl)-5-chloro-2-naphthalenesulfonamide and their less active congeners, N-(6-aminohexyl)-1-naphthalenesulfonamide and N-(4-aminobutyl)-2-naphthalenesulfonamide. These effects, of the naphthalene sulfonamide calmodulin antagonists, are consistent with a regulatory role for calmodulin in cell differentiation, but parallel effects on protein kinase C cannot be excluded.[1]


  1. Induction of myeloid differentiation of HL-60 cells with naphthalene sulfonamide calmodulin antagonists. Veigl, M.L., Sedwick, W.D., Niedel, J., Branch, M.E. Cancer Res. (1986) [Pubmed]
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