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@ARTICLE{Oelschlegel:285351,
author = {Oelschlegel, Anja M and Pöpplau, Jastyn A and Ryzynski,
Alexandre and Hradsky, Johannes and Reddy, Pasham
Parameshwar and Navarro, Gemma and Reyes-Resina, Irene and
Yuanxiang, PingAn and Sosulina, Liudmila and Kaneko, Hiroshi
and Sahu, Giriraj and Günther, Anne and Andres-Alonso,
Maria and Lopez-Rojas, Jeffrey and Aly, Ahmed A A and Bauer,
Pavol and Mikulovic, Sanja and Xia, Zifeng and Mikhaylova,
Marina and Remy, Stefan and Hanganu-Opatz, Ileana and
Karpova, Anna and Kreutz, Michael R},
title = {{E}levated calneuron-1, an accessory subunit of muscarinic
receptors, induces frontotemporal dysconnectivity and
schizophrenia-like deficits.},
journal = {Neuron},
volume = {114},
number = {4},
issn = {0896-6273},
address = {[Cambridge, Mass.]},
publisher = {Cell Press},
reportid = {DZNE-2026-00217},
pages = {679 - 698.e11},
year = {2026},
abstract = {Calneuron-1 is a Ca2+ sensor that has been linked in
several genome-wide association studies to schizophrenia
(SCZ). We show that calneuron-1 expression is elevated in
the dorsolateral prefrontal cortex of SCZ patients and that
overexpression in the medial prefrontal cortex (mPFC) of
mice elicits SCZ-related behavioral disabilities, disrupts
rhythmogenesis within the mPFC, impairs functional
connectivity between the hippocampus and the mPFC, and
causes deficits in muscarinic synaptic plasticity. These
neurophysiological signatures of SCZ are linked to the role
of calneuron-1 as an accessory subunit of muscarinic M1
receptors (M1Rs). Calneuron-1 displaces Gαq11 from the
third intracellular loop of M1R at elevated [Ca2+]i, thereby
disrupting downstream signaling. The M1R agonist xanomeline,
shown to reduce positive and negative symptoms of SCZ and
recently approved for clinical use, impedes this
calneuron-1/M1R interaction, which leads to restoration of
G-protein coupling, muscarinic synaptic plasticity, and
network communication. Collectively, our data indicate a
potential causative pathomechanism of SCZ.},
keywords = {Animals / Mice / Humans / Schizophrenia: metabolism /
Schizophrenia: genetics / Schizophrenia: physiopathology /
Receptor, Muscarinic M1: metabolism / Receptor, Muscarinic
M1: agonists / Prefrontal Cortex: metabolism / Male /
Neuronal Plasticity: physiology / Neuronal Plasticity: drug
effects / Female / Hippocampus: metabolism / Hippocampus:
physiopathology / Mice, Inbred C57BL / Thiadiazoles:
pharmacology / Pyridines / Calneuron-1 (Other) / medial
prefrontal cortex (Other) / muscarinic M1 receptors (Other)
/ schizophrenia (Other) / xanomeline (Other) / Receptor,
Muscarinic M1 (NLM Chemicals) / xanomeline (NLM Chemicals) /
Thiadiazoles (NLM Chemicals) / Pyridines (NLM Chemicals)},
cin = {AG Düzel},
ddc = {610},
cid = {I:(DE-2719)5000006},
pnm = {353 - Clinical and Health Care Research (POF4-353)},
pid = {G:(DE-HGF)POF4-353},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:41412129},
doi = {10.1016/j.neuron.2025.10.038},
url = {https://pub.dzne.de/record/285351},
}