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Choline ameliorates ethanol induced alterations in tyrosine phosphorylation and distribution in detergent-resistant membrane microdomains of L1 cell adhesion molecule in vivo.

07:00 EST 13th February 2020 | BioPortfolio

Summary of "Choline ameliorates ethanol induced alterations in tyrosine phosphorylation and distribution in detergent-resistant membrane microdomains of L1 cell adhesion molecule in vivo."

Exposure to ethanol during pregnancy is the cause of fetal alcohol spectrum disorder. The function of L1 cell adhesion molecule (L1), critical for proper brain development, is dependent on detergent-resistant membrane microdomains (DRM). Ethanol at low concentrations disrupts L1 function measured by inhibition of downstream signaling and alterations in L1-DRM distribution in cerebellum in vivo and in cerebellar granule neurons (CGN) in vitro. We have previously shown that choline pretreatment of CGN partially prevents ethanol toxicity through improving L1 function in vitro. Here we show that choline supplementation reduces the impact of ethanol on L1 in cerebellum in vivo.

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Name: Birth defects research
ISSN: 2472-1727
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Medical and Biotech [MESH] Definitions

An enzyme that is active in the first step of choline phosphoglyceride (lecithin) biosynthesis by catalyzing the phosphorylation of choline to phosphorylcholine in the presence of ATP. Ethanolamine and its methyl and ethyl derivatives can also act as acceptors. EC 2.7.1.32.

Donor of choline in biosynthesis of choline-containing phosphoglycerides.

An enzyme group that specifically dephosphorylates phosphotyrosyl residues in selected proteins. Together with PROTEIN-TYROSINE KINASE, it regulates tyrosine phosphorylation and dephosphorylation in cellular signal transduction and may play a role in cell growth control and carcinogenesis.

A condition produced by a deficiency of CHOLINE in animals. Choline is known as a lipotropic agent because it has been shown to promote the transport of excess fat from the liver under certain conditions in laboratory animals. Combined deficiency of choline (included in the B vitamin complex) and all other methyl group donors causes liver cirrhosis in some animals. Unlike compounds normally considered as vitamins, choline does not serve as a cofactor in enzymatic reactions. (From Saunders Dictionary & Encyclopedia of Laboratory Medicine and Technology, 1984)

An enzyme that catalyzes the transfer of cytidylate (CMP) to choline phosphate to form CDPcholine. It is the rate-limiting enzyme in the choline pathway for the biosynthesis of phosphatidylcholine. Its activity is increased by glucocorticoids. EC 2.7.7.15.

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