Cholestene
Chemical compound
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Through Lanthanide
Preparation
Cholestene has been synthetically prepared to mimic cholesterol, as they are used as important molecules to help important tools in the field of bioorganic and medicinal chemistry. Examples include facilitating siRNA transportation, enhancing DNA transfection, and potentially targeting tumors. In particular, researchers are interested in 3β-amino-5-cholestene, as it has a high affinity for phospholipid membranes.
3β-amino-5-cholestene, as well as other 3β-Derivatives, can be optimally synthesized from Cholesterol. The reaction scheme of 3β-amino-5-cholestene is shown below and adapted from Sun et al:
Figure 1: Multi-step Synthesis of 3β-amino-5-cholestene.
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Applications
Cholestene has been used as a dietary supplement and is often sold with red yeast rice to promote cholesterol management. These products may contain a naturally occurring statin (identical to lovastatin), which can cause serious drug interactions if not accounted for. Individuals with liver dysfunction or taking medication that weakens liver metabolism are at greater risk for these side effects, which may appear as muscle weakness, pain, fatigue and dark coloured urine.
In biological research, 3β-amino-5-cholestene (also referred to as aminocholesterol), a 3β-derivative of cholestene, has been shown to selectively enhance the magnetic susceptibility of lanthanide-chelating bicelles. When an aminocholesterol conjugate is used with different lanthanide ions, it can possibly fine tune a bicelle's magnetic susceptibility.