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Interleukin 1 expre...
Interleukin 1 expression is inducible by nerve growth factor in PC12 pheochromocytoma cells.
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Alheim, K (author)
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Andersson, C (author)
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Tingsborg, S (author)
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Ziolkowska, M (author)
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Schultzberg, M (author)
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Bartfai, T (author)
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- 1991
- 1991
- English.
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In: Proceedings of the National Academy of Sciences of the United States of America. - 0027-8424 .- 1091-6490. ; 88:20, s. 9302-6
- Related links:
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https://urn.kb.se/re...
Abstract
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- 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].
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Basic Medicine -- Neurosciences (hsv//eng)
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- ref (subject category)
- art (subject category)
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