Increased central microglial activation associated with peripheral cytokine levels in premanifest Huntington's disease gene carriers

Autor: Marios Politis, Nayana Lahiri, Flavia Niccolini, Paul Su, Kit Wu, Paolo Giannetti, Rachael I. Scahill, Federico E. Turkheimer, Sarah J. Tabrizi, Paola Piccini
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: Neurobiology of Disease, Vol 83, Iss , Pp 115-121 (2015)
Druh dokumentu: article
ISSN: 1095-953X
DOI: 10.1016/j.nbd.2015.08.011
Popis: Previous studies have shown activation of the immune system and altered immune response in Huntington's disease (HD) gene carriers. Here, we hypothesized that peripheral and central immune responses could be concurrent pathophysiological events and represent a global innate immune response to the toxic effects of mutant huntingtin in HD gene carriers. We sought to investigate our hypothesis using [11C]PK11195 PET as a translocator protein (TSPO) marker of central microglial activation, together with assessment of peripheral plasma cytokine levels in a cohort of premanifest HD gene carriers who were more than a decade from predicted symptomatic conversion. Data were also compared to those from a group of healthy controls matched for age and gender. We found significantly increased peripheral plasma IL-1β levels in premanifest HD gene carriers compared to the group of normal controls (P = 0.018). Premanifest HD gene carriers had increased TSPO levels in cortical, basal ganglia and thalamic brain regions (P
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