TY - JOUR AU1 - Müller Herde, Adrienne AU2 - Schibli, Roger AU3 - Weber, Markus AU4 - Ametamey, Simon AB - Purpose The aim of the present study was to determine the expression levels of mGluR5 in different mouse strains after induction of neuroinflammation by lipopolysaccharide (LPS) challenge and in the brains of patients with Alzheimer’s disease (AD) and amyotrophic lateral sclerosis (ALS) post mortem to investigate mGluR5 expression in human neurodegenerative diseases. Methods C57BL/6 and CD1 mice were injected intraperitoneally with either 10 mg/kg LPS or saline. mGluR5 and TSPO mRNA levels were measured after 1 and 5 days by qPCR, and mGluR5 protein levels were determined by PET imaging with the mGluR5-specific radiotracer [ F]PSS232. mGluR5 expression was evaluated in the post-mortem brain slices from AD and ALS patients using in vitro autoradiography. Results mGluR5 and TSPO mRNA levels were increased in brains of C57BL/6 and CD1 mice 1 day after LPS treatment and remained significantly increased after 5 days in C57BL/6 mice but not in CD1 mice. Brain PET imaging with [ F]PSS232 confirmed increased mGluR5 levels in the brains of both mouse strains 1 day after LPS treatment. After 5 days, mGluR5 levels in CD1 mice declined to the levels in vehicle-treated mice but remained high in C57BL/6 mice. Autoradiograms revealed a severalfold higher binding of TI - Metabotropic glutamate receptor subtype 5 is altered in LPS-induced murine neuroinflammation model and in the brains of AD and ALS patients JF - European Journal of Nuclear Medicine and Molecular Imaging DO - 10.1007/s00259-018-4179-9 DA - 2018-10-05 UR - https://www.deepdyve.com/lp/springer-journals/metabotropic-glutamate-receptor-subtype-5-is-altered-in-lps-induced-DglcnDaneT SP - 407 EP - 420 VL - 46 IS - 2 DP - DeepDyve ER -