PMID- 37106829 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20230430 IS - 2079-7737 (Print) IS - 2079-7737 (Electronic) IS - 2079-7737 (Linking) VI - 12 IP - 4 DP - 2023 Apr 21 TI - TRPC4 Channel Knockdown in the Hippocampal CA1 Region Impairs Modulation of Beta Oscillations in Novel Context. LID - 10.3390/biology12040629 [doi] LID - 629 AB - Hippocampal local field potentials (LFP) are highly related to behavior and memory functions. It has been shown that beta band LFP oscillations are correlated with contextual novelty and mnemonic performance. Evidence suggests that changes in neuromodulators, such as acetylcholine and dopamine, during exploration in a novel environment underlie changes in LFP. However, potential downstream mechanisms through which neuromodulators may alter the beta band oscillation in vivo remain to be fully understood. In this paper, we study the role of the membrane cationic channel TRPC4, which is modulated by various neuromodulators through G-protein-coupled receptors, by combining shRNA-mediated TRPC4 knockdown (KD) with LFP measurements in the CA1 region of the hippocampus in behaving mice. We demonstrate that the increased beta oscillation power seen in the control group mice in a novel environment is absent in the TRPC4 KD group. A similar loss of modulation was also seen in the low-gamma band oscillations in the TRPC4 KD group. These results demonstrate that TRPC4 channels are involved in the novelty-induced modulation of beta and low-gamma oscillations in the CA1 region. FAU - Saber Marouf, Babak AU - Saber Marouf B AUID- ORCID: 0000-0003-0078-0089 AD - Institute of Physiology, Medical Faculty, Otto-Von-Guericke University, 39120 Magdeburg, Germany. AD - Cognitive Neurophysiology, German Center for Neurodegenerative Diseases (DZNE), 39120 Magdeburg, Germany. AD - FAM Department, Leibniz Institute for Neurobiology (LIN), 39118 Magdeburg, Germany. FAU - Reboreda, Antonio AU - Reboreda A AD - Cognitive Neurophysiology, German Center for Neurodegenerative Diseases (DZNE), 39120 Magdeburg, Germany. AD - FAM Department, Leibniz Institute for Neurobiology (LIN), 39118 Magdeburg, Germany. FAU - Theissen, Frederik AU - Theissen F AD - Cognitive Neurophysiology, German Center for Neurodegenerative Diseases (DZNE), 39120 Magdeburg, Germany. AD - FAM Department, Leibniz Institute for Neurobiology (LIN), 39118 Magdeburg, Germany. FAU - Kaushik, Rahul AU - Kaushik R AD - Molecular Neuroplasticity Group, German Center for Neurodegenerative Diseases (DZNE), 39120 Magdeburg, Germany. FAU - Sauvage, Magdalena AU - Sauvage M AUID- ORCID: 0000-0002-7586-6410 AD - FAM Department, Leibniz Institute for Neurobiology (LIN), 39118 Magdeburg, Germany. AD - Medical Faculty, Otto-von-Guericke University (OvGU), 39120 Magdeburg, Germany. AD - Center for Behavioral Brain Sciences (CBBS), 39106 Magdeburg, Germany. FAU - Dityatev, Alexander AU - Dityatev A AUID- ORCID: 0000-0002-0472-0553 AD - Molecular Neuroplasticity Group, German Center for Neurodegenerative Diseases (DZNE), 39120 Magdeburg, Germany. AD - Medical Faculty, Otto-von-Guericke University (OvGU), 39120 Magdeburg, Germany. AD - Center for Behavioral Brain Sciences (CBBS), 39106 Magdeburg, Germany. FAU - Yoshida, Motoharu AU - Yoshida M AD - Cognitive Neurophysiology, German Center for Neurodegenerative Diseases (DZNE), 39120 Magdeburg, Germany. AD - FAM Department, Leibniz Institute for Neurobiology (LIN), 39118 Magdeburg, Germany. AD - Center for Behavioral Brain Sciences (CBBS), 39106 Magdeburg, Germany. LA - eng GR - ESF, 2014-2020, project number ZS/2016/08/80645/Federal state Saxony-Anhalt and the European Structural and Investment Funds/ GR - YO177/4-1 and YO177/4-3 (to MY)/Deutsche Forschungsgemeinschaft projects/ GR - (to A.D.)/German Center for Neurodegenerative Diseases/ PT - Journal Article DEP - 20230421 PL - Switzerland TA - Biology (Basel) JT - Biology JID - 101587988 PMC - PMC10135742 OTO - NOTNLM OT - CA1 OT - TRPC4 OT - beta oscillations OT - encoding OT - hippocampus OT - memory OT - novel environment task COIS- The authors declare no conflict of interest. EDAT- 2023/04/28 06:41 MHDA- 2023/04/28 06:42 PMCR- 2023/04/21 CRDT- 2023/04/28 01:17 PHST- 2023/03/30 00:00 [received] PHST- 2023/04/17 00:00 [revised] PHST- 2023/04/17 00:00 [accepted] PHST- 2023/04/28 06:42 [medline] PHST- 2023/04/28 06:41 [pubmed] PHST- 2023/04/28 01:17 [entrez] PHST- 2023/04/21 00:00 [pmc-release] AID - biology12040629 [pii] AID - biology-12-00629 [pii] AID - 10.3390/biology12040629 [doi] PST - epublish SO - Biology (Basel). 2023 Apr 21;12(4):629. doi: 10.3390/biology12040629.