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Cytokines in Lyme borreliosis: lack of early tumour necrosis factor-alpha and transforming growth factor-beta1 responses are associated with chronic neuroborreliosis.

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The clinical outcome of the tick born infection
Lyme borreliosis seems to be influenced by the type of immune response mounted during the
disease, as suggested by various animal models. Here we report the serum and cerebrospinal fluid levels of tumour necrosis factor-alpha (TNF-alpha), transforming growth factor beta1 (TGF-beta1) and interleukin-6 (IL-6) in samples drawn at different
disease intervals during the course of non-chronic neuroborreliosis (n=10), chronic neuroborreliosis (n=15), erythema migrans (n=8, serum only) and controls (n=7). When comparing early neuroborreliosis cerebrospinal fluid samples, significantly higher levels of TNF-alpha were found in non-chronic patients than in chronic patients (P<0.05). Moreover, TGF-beta1 was increased in the early serum samples of non-chronic patients, as compared to chronic patients (P<0.01). Elevated serum levels of TGF-beta1 were also found in erythema migrans as compared to neuroborreliosis and controls (P<0.05). The high TNF-alpha levels noted in early cerebrospinal fluid samples of non-chronic patients only, possibly reflects an ongoing pro-inflammatory immune response in the central nervous system, which could be beneficial in eliminating
disease. High serum levels of TGF-beta1 probably mirror an anti-inflammatory response, which might play a role in controlling the systemic immune response.

Immunology. 2002 Sep;107(1):46-55. Research Support, Non-U.S. Gov’t

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