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Interleukin 1 expression is inducible by nerve growth factor in PC12 pheochromocytoma cells.
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1991 (English)In: Proceedings of the National Academy of Sciences of the United States of America, ISSN 0027-8424, E-ISSN 1091-6490, Vol. 88, no 20, 9302-6 p.Article in journal (Refereed) Published
Abstract [en]

Expression of the cytokine interleukin 1 alpha (IL-1 alpha) was demonstrated in the rat PC12 pheochromocytoma cell line by (i) immunohistochemistry using rabbit polyclonal antisera raised against the recombinant murine IL-1 alpha, (ii) an ELISA, and (iii) a specific cell conversion bioassay based on the use of LBRM33-1A5 cells. IL-1 alpha mRNA was demonstrated in the PC12 cells, by PCR amplification. Constitutive expression of IL-1 alpha in PC12 cells was demonstrated in all experiments, although the cellular levels of IL-1 alpha-like immunoreactivity varied. The expression of IL-1 alpha, as studied at the mRNA level, was inducible by mouse nerve growth factor (7S NGF), and the gene product level was inducible in a dose- and time-dependent fashion by 7S NGF. The maximum induction corresponds to a 600% increase in IL-1 alpha-like immunoreactivity above the expression level found in noninduced cells and occurred after a 3-day incubation of the cells with NGF at 0.75 micrograms/ml of culture medium. The significance of the ability of NGF to induce IL-1 expression lies in the fact that IL-1 itself also acts as a growth factor that promotes glial proliferation and, even more importantly, IL-1 itself induces the expression of NGF at peripheral nerve injury [Lindholm, D., Heumann, R., Meyer, M. & Thoenen, H. (1987) Nature (London) 330, 658-659].

Place, publisher, year, edition, pages
1991. Vol. 88, no 20, 9302-6 p.
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URN: urn:nbn:se:uu:diva-256421PubMedID: 1924394OAI: oai:DiVA.org:uu-256421DiVA: diva2:825282
Available from: 2015-06-23 Created: 2015-06-23 Last updated: 2015-06-23

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Tingsborg, S
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