Title |
Cholesterol Analogs with Degradation-resistant Alkyl Side Chains Are Effective Mycobacterium tuberculosis Growth Inhibitors*
|
---|---|
Published in |
Journal of Biological Chemistry, February 2016
|
DOI | 10.1074/jbc.m115.708172 |
Pubmed ID | |
Authors |
Daniel J Frank, Yan Zhao, Siew Hoon Wong, Debashree Basudhar, James J De Voss, Paul R Ortiz de Montellano |
Abstract |
Cholest-4-en-3-one, whether added exogenously or generated intracellularly from cholesterol, inhibits the growth of Mycobacterium tuberculosis when CYP125A1 and CYP142A1, the cytochrome P450 enzymes that initiate degradation of the sterol side-chain, are disabled. Here we demonstrate that a 16-hydroxy derivative of cholesterol, which was previously reported to inhibit growth of M. tuberculosis, acts by preventing the oxidation of the sterol side-chain even in the presence of the relevant cytochrome P450 enzymes. The finding that (25R)-cholest-5-en-3β, 16β, 26-triol (1) (and its 3-keto metabolite) inhibit growth suggests that cholesterol analogs with non-degradable side-chains represent a novel class of anti-mycobacterial agents. In accord with this, two cholesterol analogs with truncated, fluorinated side-chains have been synthesized and shown to similarly block the growth in culture of M. tuberculosis. |
X Demographics
Geographical breakdown
Country | Count | As % |
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United States | 2 | 29% |
France | 1 | 14% |
Turkey | 1 | 14% |
Venezuela, Bolivarian Republic of | 1 | 14% |
South Africa | 1 | 14% |
Unknown | 1 | 14% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 5 | 71% |
Scientists | 2 | 29% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 35 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 10 | 29% |
Student > Bachelor | 7 | 20% |
Student > Master | 4 | 11% |
Researcher | 3 | 9% |
Student > Doctoral Student | 2 | 6% |
Other | 3 | 9% |
Unknown | 6 | 17% |
Readers by discipline | Count | As % |
---|---|---|
Biochemistry, Genetics and Molecular Biology | 8 | 23% |
Agricultural and Biological Sciences | 8 | 23% |
Chemistry | 5 | 14% |
Pharmacology, Toxicology and Pharmaceutical Science | 3 | 9% |
Immunology and Microbiology | 2 | 6% |
Other | 2 | 6% |
Unknown | 7 | 20% |