p(MGI:Chrm4)

Entity

Name

Chrm4

Namespace

mgi

Namespace Version

20181021

Namespace URL

https://raw.githubusercontent.com/pharmacome/terminology/f2f993e599694ab5ce989cc39d789a499f75db99/external/mgi-names.belns

This file encodes the article M1 muscarinic acetylcholine receptor in Alzheimer’s disease by Jiang et al, 2014

Corroborating this hypothesis, it has been demonstrated that dopamine efflux is increased in the nucleus accumbens of M4 knockout mice PubMed:26813123

M4 mAChR is mainly expressed in the corpus striatum in the CNS and on various prejunctional nerve terminals in the periphery. M4 mAChR has been suggested to play a role in psychosis and to be a promising target for the treatment of schizophrenia[52]. Indeed, the mixed M1/M4 mAChR agonist xanomeline has antipsychotic effects, and M4 mAChR-knockout mice display increased sensitivity to the disruptive effects of phencyclidine, a drug of abuse PubMed:24590577

M4 mAChR is also involved in the pathology of Parkinson’s disease, which is associated with the loss of dopaminergic neurons projecting to the striatum and an imbalance between cholinergic and dopaminergic systems. In the corpus striatum, M4 mAChR is closely co-localized with dopamine receptors on striatal-projecting neurons and the striatal M4 mAChR inhibits dopamine D1 receptor function. Mice lacking M4 mAChR show increased locomotor activity and enhanced dopamine D1 receptor-mediated effects[55]. Consequently, selective M4 mAChR antagonists, such as benzoxazines, have been developed for the treatment of Parkinson’s disease PubMed:24590577

M4 mAChR is also involved in the pathology of Parkinson’s disease, which is associated with the loss of dopaminergic neurons projecting to the striatum and an imbalance between cholinergic and dopaminergic systems. In the corpus striatum, M4 mAChR is closely co-localized with dopamine receptors on striatal-projecting neurons and the striatal M4 mAChR inhibits dopamine D1 receptor function. Mice lacking M4 mAChR show increased locomotor activity and enhanced dopamine D1 receptor-mediated effects[55]. Consequently, selective M4 mAChR antagonists, such as benzoxazines, have been developed for the treatment of Parkinson’s disease PubMed:24590577