Effects of muscarinic acetylcholine receptor stimulation on the differentiation of mouse induced pluripotent stem cells into neural progenitor cells. 2018

Toshiaki Ishizuka, and Ayako Ozawa, and Mieko Katsuura, and Sayaka Nomura, and Yasushi Satoh
Department of Pharmacology, National Defense Medical College, Tokorozawa, Saitama, Japan.

Muscarinic acetylcholine receptors (mAchRs), which are expressed in various embryonic cells, may regulate neuronal differentiation. In the present study, we examined the effects of mAchR stimulation on the differentiation of mouse induced pluripotent stem (iPS) cells into neural progenitor cells (NPCs). Mouse iPS cells were cultured on ultra-low attachment dishes to induce embryoid body (EB) formation. All-trans retinoic acid (ATRA, 3 μmol/L) and/or pilocarpine (10 or 100 μmol/L), a mAchR agonist, were added to EB cultures for 4 days, following which the EBs were cultured on gelatin-coated plates for 7 days. Subtype-specific antibody staining revealed that mouse iPS cells predominantly express m2 - and m4 -AchR. Treatment with pilocarpine alone did not affect the expression of Nestin (a specific marker for neural progenitor cells). However, additional treatment with pilocarpine significantly suppressed ATRA-induced Nestin expression. Pretreating EBs with either AF-DX116 (an antagonist of both m2 - and m4 -AchR) or forskolin (an activator of adenylate cyclase) significantly reversed the pilocarpine-induced suppression of Nestin expression. In addition, treatment with pilocarpine significantly suppressed ATRA-induced phosphorylation of cyclic adenosine monophosphate (cAMP) response element-binding protein (CREB). These findings suggest that the stimulation of m2 - or m4 -AchR suppresses ATRA-induced differentiation of mouse iPS cells into NPCs by inhibiting the cAMP/protein kinase A pathway and CREB activation.

UI MeSH Term Description Entries
D010766 Phosphorylation The introduction of a phosphoryl group into a compound through the formation of an ester bond between the compound and a phosphorus moiety. Phosphorylations
D011976 Receptors, Muscarinic One of the two major classes of cholinergic receptors. Muscarinic receptors were originally defined by their preference for MUSCARINE over NICOTINE. There are several subtypes (usually M1, M2, M3....) that are characterized by their cellular actions, pharmacology, and molecular biology. Muscarinic Acetylcholine Receptors,Muscarinic Receptors,Muscarinic Acetylcholine Receptor,Muscarinic Receptor,Acetylcholine Receptor, Muscarinic,Acetylcholine Receptors, Muscarinic,Receptor, Muscarinic,Receptor, Muscarinic Acetylcholine,Receptors, Muscarinic Acetylcholine
D002454 Cell Differentiation Progressive restriction of the developmental potential and increasing specialization of function that leads to the formation of specialized cells, tissues, and organs. Differentiation, Cell,Cell Differentiations,Differentiations, Cell
D004789 Enzyme Activation Conversion of an inactive form of an enzyme to one possessing metabolic activity. It includes 1, activation by ions (activators); 2, activation by cofactors (coenzymes); and 3, conversion of an enzyme precursor (proenzyme or zymogen) to an active enzyme. Activation, Enzyme,Activations, Enzyme,Enzyme Activations
D005786 Gene Expression Regulation Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control (induction or repression) of gene action at the level of transcription or translation. Gene Action Regulation,Regulation of Gene Expression,Expression Regulation, Gene,Regulation, Gene Action,Regulation, Gene Expression
D000262 Adenylyl Cyclases Enzymes of the lyase class that catalyze the formation of CYCLIC AMP and pyrophosphate from ATP. Adenyl Cyclase,Adenylate Cyclase,3',5'-cyclic AMP Synthetase,Adenylyl Cyclase,3',5' cyclic AMP Synthetase,AMP Synthetase, 3',5'-cyclic,Cyclase, Adenyl,Cyclase, Adenylate,Cyclase, Adenylyl,Cyclases, Adenylyl,Synthetase, 3',5'-cyclic AMP
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D017362 Cyclic AMP Response Element-Binding Protein A protein that has been shown to function as a calcium-regulated transcription factor as well as a substrate for depolarization-activated CALCIUM-CALMODULIN-DEPENDENT PROTEIN KINASES. This protein functions to integrate both calcium and cAMP signals. CREB Protein,DNA-Binding Protein, Cyclic AMP-Responsive,Cyclic AMP-Responsive DNA-Binding Protein,cAMP Response Element-Binding Protein,Cyclic AMP Responsive DNA Binding Protein,DNA Binding Protein, Cyclic AMP Responsive,cAMP Response Element Binding Protein
D051379 Mice The common name for the genus Mus. Mice, House,Mus,Mus musculus,Mice, Laboratory,Mouse,Mouse, House,Mouse, Laboratory,Mouse, Swiss,Mus domesticus,Mus musculus domesticus,Swiss Mice,House Mice,House Mouse,Laboratory Mice,Laboratory Mouse,Mice, Swiss,Swiss Mouse,domesticus, Mus musculus
D057026 Induced Pluripotent Stem Cells Cells from adult organisms that have been reprogrammed into a pluripotential state similar to that of EMBRYONIC STEM CELLS. Human Induced Pluripotent Stem Cell,IPS Cell,IPS Cells,Induced Pluripotent Stem Cell,Fibroblast-Derived IPS Cells,Fibroblast-Derived Induced Pluripotent Stem Cells,Human Induced Pluripotent Stem Cells,hiPSC,Cell, Fibroblast-Derived IPS,Cell, IPS,Cells, Fibroblast-Derived IPS,Cells, IPS,Fibroblast Derived IPS Cells,Fibroblast Derived Induced Pluripotent Stem Cells,Fibroblast-Derived IPS Cell,IPS Cell, Fibroblast-Derived,IPS Cells, Fibroblast-Derived

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