Antituberculosis thiophenes define a requirement for Pks13 in mycolic acid biosynthesis.
Antituberculosis thiophenes define a requirement for Pks13 in mycolic acid biosynthesis.
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DOI:
10.1038/nchembio.1277
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发表时间:
2013-08
影响因子:
14.8
通讯作者:
Alland D
中科院分区:
文献类型:
--
作者:
Wilson R;Kumar P;Parashar V;Vilchèze C;Veyron-Churlet R;Freundlich JS;Barnes SW;Walker JR;Szymonifka MJ;Marchiano E;Shenai S;Colangeli R;Jacobs WR Jr;Neiditch MB;Kremer L;Alland D
We report a new class of thiophene (TP) compounds that kill Mycobacterium tuberculosis (Mtb) by the novel mechanism of Pks13 inhibition. An F79S mutation near the catalytic Ser-55 site in Pks13 conferred TP-resistance in Mtb. Over-expression of wild-type pks13 resulted in TP-resistance and over-expression of the F79S pks13 mutant conferred high-level resistance. In vitro, TP inhibited fatty acyl-AMP loading onto Pks13. TP inhibited mycolic acid biosynthesis in wild-type Mtb, but to a much lesser extent in TP-resistant Mtb. TP treatment was bactericidal and equivalent to the first-line drug isoniazid, but it was less likely to permit emergent resistance. Combined isoniazid and TP treatment exhibited sterilizing activity. Computational-docking identified a possible TP-binding groove within the Pks13 ACP domain. This study confirms that Mtb Pks13 is required for mycolic acid biosynthesis, validates it as a druggable target and demonstrates the therapeutic potential of simultaneously inhibiting multiple targets in the same biosynthetic pathway.
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影响因子:
4.4
作者:
Carroll, Paul;Faray-Kele, Marie-Claire;Parish, Tanya
通讯作者:
Parish, Tanya
影响因子:
4.9
作者:
Gumbo, Tawanda;Louie, Arnold;Drusano, George L.
通讯作者:
Drusano, George L.
DOI:
10.1016/j.tube.2009.07.006
发表时间:
2009-09
期刊:
Tuberculosis (Edinburgh, Scotland)
影响因子:
--
作者:
Maddry JA;Ananthan S;Goldman RC;Hobrath JV;Kwong CD;Maddox C;Rasmussen L;Reynolds RC;Secrist JA 3rd;Sosa MI;White EL;Zhang W
通讯作者:
Zhang W
影响因子:
4.8
作者:
Khoo, KH;Douglas, E;Chatterjee, D
通讯作者:
Chatterjee, D
影响因子:
--
作者:
Leger, Mathieu;Gavalda, Sabine;Marrakchi, Hedia
通讯作者:
Marrakchi, Hedia