Sohvi Ohtonen, Luca Giudice, Henna Jäntti, Mohammad Feroze Fazaludeen, Anastasia Shakirzyanova, Mireia Gómez-Budia, Nelli-Noora Välimäki, Jonna Niskanen, Nea Korvenlaita, Ilkka Fagerlund, Jari Koistinaho, Mahmood Amiry-Moghaddam, Ekaterina Savchenko, Laurent Roybon, Šárka Lehtonen, Paula Korhonen, Tarja Malm
LRRK2-G2019S is one of the most common Parkinson's disease (PD)-associated mutations and has been shown to alter microglial functionality. However, the impact of LRRK2-G2019S on transcriptional profile of human induced pluripotent stem cell-derived microglia-like cells (iMGLs) and how it corresponds to microglia in idiopathic PD brain is not known. Here we demonstrate that LRRK2-G2019S carrying iMGL recapitulate aspects of the transcriptional signature of human idiopathic PD midbrain microglia. LRRK2-G2019S induced subtle and donor-dependent alterations in iMGL mitochondrial respiration, phagocytosis and cytokine secretion...
December 13, 2023: Scientific Reports