Neuronal cell-type specific DNA methylation patterns of the Cacna1c gene. 2013

Masaki Nishioka, and Takafumi Shimada, and Miki Bundo, and Wataru Ukai, and Eri Hashimoto, and Toshikazu Saito, and Yukiko Kano, and Tsukasa Sasaki, and Kiyoto Kasai, and Tadafumi Kato, and Kazuya Iwamoto
Department of Molecular Psychiatry, Graduate School of Medicine, The University of Tokyo, Bunkyo-ku, Japan.

Gene expression of the alpha-1 subunit of the L-type voltage-gated calcium channel, CACNA1C, is known to be complexly regulated. Because CACNA1C is not only a crucial gene in normal brain function but also a promising candidate risk gene for psychiatric disorders such as bipolar disorder and schizophrenia, elucidating the molecular basis of transcriptional regulatory mechanism will be critically important. Here we examined DNA methylation status of CpG islands and a CpG island shore on mouse Cacna1c in neuronal and non-neuronal nuclei, which were separated with a fluorescent activated cell sorting technique. We found that neurons and non-neurons showed differential DNA methylation profile on a CpG island shore. This difference was evolutionarily conserved in human neuronal and non-neuronal nuclei in the prefrontal cortex, suggesting that DNA methylation status on the CpG island shore of Cacna1c may have an important role in transcript regulation.

UI MeSH Term Description Entries
D008810 Mice, Inbred C57BL One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases. Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D009474 Neurons The basic cellular units of nervous tissue. Each neuron consists of a body, an axon, and dendrites. Their purpose is to receive, conduct, and transmit impulses in the NERVOUS SYSTEM. Nerve Cells,Cell, Nerve,Cells, Nerve,Nerve Cell,Neuron
D001921 Brain The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. Encephalon
D002478 Cells, Cultured Cells propagated in vitro in special media conducive to their growth. Cultured cells are used to study developmental, morphologic, metabolic, physiologic, and genetic processes, among others. Cultured Cells,Cell, Cultured,Cultured Cell
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
D044127 Epigenesis, Genetic A genetic process by which the adult organism is realized via mechanisms that lead to the restriction in the possible fates of cells, eventually leading to their differentiated state. Mechanisms involved cause heritable changes to cells without changes to DNA sequence such as DNA METHYLATION; HISTONE modification; DNA REPLICATION TIMING; NUCLEOSOME positioning; and heterochromatization which result in selective gene expression or repression. Epigenetic Processes,Epigenetic Process,Epigenetics Processes,Genetic Epigenesis,Process, Epigenetic,Processes, Epigenetic,Processes, Epigenetics
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
D018507 Gene Expression Regulation, Developmental Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action during the developmental stages of an organism. Developmental Gene Expression Regulation,Embryologic Gene Expression Regulation,Gene Expression Regulation, Embryologic,Regulation of Gene Expression, Developmental,Regulation of Gene Expression, Embryologic,Regulation, Gene Expression, Developmental,Regulation, Gene Expression, Embryologic
D018899 CpG Islands Areas of increased density of the dinucleotide sequence cytosine--phosphate diester--guanine. They form stretches of DNA several hundred to several thousand base pairs long. In humans there are about 45,000 CpG islands, mostly found at the 5' ends of genes. They are unmethylated except for those on the inactive X chromosome and some associated with imprinted genes. CpG Clusters,CpG-Rich Islands,Cluster, CpG,Clusters, CpG,CpG Cluster,CpG Island,CpG Rich Islands,CpG-Rich Island,Island, CpG,Island, CpG-Rich,Islands, CpG,Islands, CpG-Rich
D019175 DNA Methylation Addition of methyl groups to DNA. DNA methyltransferases (DNA methylases) perform this reaction using S-ADENOSYLMETHIONINE as the methyl group donor. DNA Methylations,Methylation, DNA,Methylations, DNA

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