RGD Reference Report - Improved outcome of EAN, an animal model of GBS, through amelioration of peripheral and central inflammation by minocycline. - Rat Genome Database

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Improved outcome of EAN, an animal model of GBS, through amelioration of peripheral and central inflammation by minocycline.

Authors: Zhang, ZY  Zhang, Z  Fauser, U  Schluesener, HJ 
Citation: Zhang ZY, etal., J Cell Mol Med. 2009 Feb;13(2):341-51. doi: 10.1111/j.1582-4934.2008.00333.x. Epub 2008 Apr 8.
RGD ID: 7401218
Pubmed: PMID:18400050   (View Abstract at PubMed)
PMCID: PMC3823360   (View Article at PubMed Central)
DOI: DOI:10.1111/j.1582-4934.2008.00333.x   (Journal Full-text)

Experimental autoimmune neuritis (EAN) is a widely used animal model of the human acute inflammatory demyelinating polyradiculoneuropathy, which is the most common subtype of Guillain-Barre Syndrome. EAN is pathologically characterized by breakdown of the blood-nerve barrier, infiltration of reactive immune cells, local inflammation, demyelination in the peripheral nervous system and mechanical allodynia. Minocycline is known to have neuroprotective and anti-inflammatory effects. Furthermore, relieve of neuropathic pain following minocycline administration was observed in a variety of animal models. Here, we investigated the effects of minocycline on rat EAN. Suppressive treatment with minocycline (50 mg/kg body weight daily immediately after immunization) significantly attenuated the severity and duration of EAN. Macrophage and T-cell infiltration and demyelination in sciatic nerves of EAN rats treated with minocycline were significantly reduced compared to phosphate-buffered saline (PBS)-treated EAN rats. mRNA expressions of matrix metallopeptidase-9, inducible nitric oxide synthase and pro-inflammatory cytokines interleukin-1 beta and tumour necrosis factor-alpha in EAN sciatic nerves were greatly decreased by administration of minocycline as well. Furthermore, minocycline attenuated mechanical allodynia in EAN rats and greatly suppressed spinal microglial activation. All together, our data showed that minocycline could effectively suppress the peripheral and spinal inflammation (immune activation) to improve outcome in EAN rats, which suggests that minocycline may be considered as a potential candidate of pharmacological treatment for autoimmune-mediated neuropathies.

RGD Manual Disease Annotations    Click to see Annotation Detail View

Objects Annotated

Genes (Rattus norvegicus)
Il1b  (interleukin 1 beta)
Tnf  (tumor necrosis factor)

Genes (Mus musculus)
Il1b  (interleukin 1 beta)
Tnf  (tumor necrosis factor)

Genes (Homo sapiens)
IL1B  (interleukin 1 beta)
TNF  (tumor necrosis factor)

Additional Information