Effects of IL-1β, IL-6 or LIF on rat sensory neurons co-cultured with fibroblast-like cells

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Edoff, Karin,1973-Linköpings universitet,Cellbiologi,Hälsouniversitetet (author)

Effects of IL-1β, IL-6 or LIF on rat sensory neurons co-cultured with fibroblast-like cells

Article/chapterEnglish2002

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2001-12-14
Wiley,2002
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LIBRIS-ID:oai:DiVA.org:liu-24998
https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-24998URI
https://doi.org/10.1002/jnr.10092DOI

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Language:English
Summary in:English

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Subject category:art swepub-publicationtype

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Inflammation may affect the local presence of sensory nerve fibers in situ and inflammatory mediators influence sensory neurons in vitro. In the present study we have investigated effects of the cytokines interleukin-1β (IL-1β, interleukin-6 (IL-6), and leukemia inhibitory factor (LIF) on survival of and neurite growth from neonatal rat sensory neurons co-cultured with fibroblast-like cells prepared from neonatal rat skin (sFLCs) or perichondrium (pFLCs). The results showed that both FLC types expressed receptors for all three cytokines. Five ng/ml of either cytokine, but not lower or higher concentrations, supported survival of DRG neurons co-cultured with sFLCs. Neuronal survival was also enhanced by addition of the soluble IL-6 receptor (rsIL-6R) with or without IL-6. In co-cultures with pFLCs neuronal survival was promoted by IL-6, increasing with cytokine concentration. Addition of rsIL-6R without IL-6 did also stimulate neuronal survival. The growth of neurites from DRG neurons co-cultured with sFLCs was stimulated by 0.5 ng/ml LIF, unaffected by 5 ng/ml LIF and inhibited by 50 ng/ml LIF. Considering DRG neurons co-cultured with pFLCs, 50 ng/ml of either of the three cytokines, as well as rsIL-6R conditioned medium, stimulated neurite outgrowth. Some of the cytokine effects observed were reduced by application of antibodies against nerve growth factor (NGF). We conclude that that the cytokines examined affect DRG neurons in terms of survival or neuritogenesis, that the effects are influenced by cytokine concentration and the origin of the FLCs and that some of the effects are indirect, probably being mediated by factors released from FLCs.

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MEDICINE
MEDICIN

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Jerregård, HelenaLinköpings universitet,Cellbiologi,Hälsouniversitetet(Swepub:liu)helje01x (author)
Linköpings universitetCellbiologi (creator_code:org_t)

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In:Journal of Neuroscience Research: Wiley67:2, s. 255-2630360-40121097-4547

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