Human purified interleukin-1 inhibits DNA synthesis and cell growth of osteoblastic cell line (MC3T3-E1), but enhances alkaline phosphatase activity in the cells

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Abstract

We examined the effects of human purified interleukin-1 (IL-1) on DNA synthesis, cell growth, and alkaline phosphatase activity in the osteoblastic cell line MC3T3-E 1 under both preconfluent and confluent culture conditions. Addition of IL-1 to the cells markedly inhibited their DNA synthesis and growth over the range 1-10 U ml. Such significant inhibitory effects were observed in cells cultivated in 1 or 5% fetal calf serum (FCS)-containing alpha modification Eagle's medium (alpha-MEM), but not in alpha-MEM containing 10% FCS. In contrast, alkaline phosphatase activity was enhanced significantly by IL-1 in the cell line cultivated in 1% FCS-containing alpha-MEM. These results demonstrate that human purified IL-1 is effective in inducing the differentiation of osteoblastic cell MC3T3-E1. © 1986.

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Hanazawa, S., Ohmori, Y., Amano, S., Hirose, K., Miyoshi, T., Kumegawa, M., & Kitano, S. (1986). Human purified interleukin-1 inhibits DNA synthesis and cell growth of osteoblastic cell line (MC3T3-E1), but enhances alkaline phosphatase activity in the cells. FEBS Letters, 203(2), 279–284. https://doi.org/10.1016/0014-5793(86)80758-X

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