Distearoylphosphatidylcholine is a
phosphatidylcholine
Phosphatidylcholines (PC) are a class of phospholipids that incorporate choline as a headgroup.
They are a major component of biological membranes and can be easily obtained from a variety of readily available sources, such as egg yolk or soybea ...
, a kind of
phospholipid. It is a natural constituent of
cell membrane
The cell membrane (also known as the plasma membrane (PM) or cytoplasmic membrane, and historically referred to as the plasmalemma) is a biological membrane that separates and protects the interior of all cells from the outside environment ( ...
s, eg. soybean phosphatidylcholines are mostly different 18-carbon phosphatidylcholines (including minority of saturated DSPC), and their
hydrogenation
Hydrogenation is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst such as nickel, palladium or platinum. The process is commonly employed to reduce or saturate organ ...
results in 85% DSPC.
It can be used to prepare
lipid nanoparticles
lipid nanoparticles (LNPs), are nanoparticles composed of lipids. They are a novel pharmaceutical drug delivery system (and part of nanoparticle drug delivery), and a novel pharmaceutical formulation. LNPs as a drug delivery vehicle were fi ...
which are used in mRNA vaccines,
In particular, it forms part of the
drug delivery system for the
Moderna
Moderna, Inc. ( ) is an American pharmaceutical and biotechnology company based in Cambridge, Massachusetts that focuses on RNA therapeutics, primarily mRNA vaccines. These vaccines use a copy of a molecule called messenger RNA (mRNA) to pro ...
and
Pfizer COVID-19 vaccines.
See also
;Moderna COVID-19 vaccine nanoparticle ingredients
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SM-102
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DMG-PEG 2000
DMG-PEG 2000 is a synthetic lipid formed by the PEGylation of myristoyl diglyceride. It is used to manufacture lipid nanoparticles that are used in mRNA vaccines, and in particular forms part forms part of the drug delivery system for the Moderna ...
;Others
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Stearic acid, contributing stearoyl- group
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Phosphocholine
Phosphocholine is an intermediate in the synthesis of phosphatidylcholine in tissues. Phosphocholine is made in a reaction, catalyzed by choline kinase, that converts ATP and choline into phosphocholine and ADP. Phosphocholine is a molecule ...
References
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Phosphatidylcholines