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Cholesterol in the year 2000.

D E Vance¹, H Van den Bosch

¹Department of Biochemistry and Canadian Institutes of Health Research, Group on the Molecular and Cell Biology of Lipids, University of Alberta, Edmonton, Canada. dennis.vance@ualberta.ca

Biochimica Et Biophysica Acta

|December 9, 2000

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20th-century cholesterol research elucidated its structure and biosynthesis. Key discoveries include acetate incorporation, squalene as a precursor, and the role of the low-density lipoprotein receptor in cholesterol homeostasis.

Area of Science:

Biochemistry
Molecular Biology
Medical Research

Background:

Cholesterol's structure and function were largely unknown at the start of the 20th century.
Pioneering work by Windaus and Wieland elucidated cholesterol's structure by 1932.

Observation:

The development of isotopic tracers enabled the study of cholesterol biosynthesis.
Bloch and Rittenberg demonstrated acetate incorporation into cholesterol.
Squalene was identified as a cholesterol precursor, with isopentenyl pyrophosphate later found to be key in the pathway.

Findings:

Cornforth and Popjak detailed the stereochemical pathways of squalene synthesis from mevalonate.
Bloch provided evidence for the evolutionary advantage of cholesterol over lanosterol.

Related Experiment Videos

Brown and Goldstein identified the low-density lipoprotein receptor as a regulator of cholesterol homeostasis and demonstrated transcriptional regulation via sterol regulatory element-binding protein.

Implications:

Understanding cholesterol biosynthesis and regulation led to the development of drugs to lower plasma cholesterol.
These advancements significantly reduced the risk of atherosclerosis and cardiovascular disease.
Continued research into cholesterol metabolism remains crucial for public health.