Effects of vitamin D3 and IFN-gamma on the synthesis of the second complement component, C2, by a human myeloid leukemia (HL-60) cell line.

  • Littman B
  • Sanders K
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Abstract

HL-60 cells, a human promyelocytic cell line, can be induced to differentiate along either monocytic or granulocytic pathways. The production of the second complement component, C2, is a marker of monocytic differentiation and can be up-regulated by cytokine stimulation. We studied the effects of IFN-gamma and vitamin D3, two factors previously shown to induce monocytic differentiation of HL-60 cells, on C2 production and C2 mRNA content. We found that HL-60 cells produce little if any C2 but can be induced to synthesize C2 by IFN-gamma. Vitamin D3 pretreatment followed by IFN-gamma stimulation resulted in earlier and greater production of C2. HL-60 cells did not contain detectable amounts of C2 mRNA unless they were stimulated with IFN-gamma. Pretreatment with vitamin D3 followed by IFN-gamma stimulation resulted in a 147% increase in C2 mRNA content compared with IFN-gamma stimulation alone. These results indicate that the up-regulation of C2 production by IFN-gamma and vitamin D3 is pretranslational although additional posttranslational effects were not excluded. C2 production by these cells is a useful marker of monocytic differentiation.

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APA

Littman, B. H., & Sanders, K. M. (1988). Effects of vitamin D3 and IFN-gamma on the synthesis of the second complement component, C2, by a human myeloid leukemia (HL-60) cell line. The Journal of Immunology, 140(9), 3082–3085. https://doi.org/10.4049/jimmunol.140.9.3082

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