The competitive cost of antibiotic resistance in Mycobacterium tuberculosis

被引：489

作者：

Gagneux, Sebastien ^{[1
]}

Long, Clara Davis

Small, Peter M.

Van, Tran

Schoolnik, Gary K.

Bohannan, Brendan J. M.

机构：

[1] Stanford Univ, Div Infect Dis & Geog Med, Stanford, CA 94305 USA

[2] Stanford Univ, Dept Biol Sci, Stanford, CA 94305 USA

[3] Stanford Univ, Dept Microbiol & Immunol, Stanford, CA 94305 USA

[4] Inst Syst Biol, Seattle, WA 98103 USA

[5] Bill & Melinda Gates Fdn, Seattle, WA 98102 USA

来源：

SCIENCE | 2006年 / 312卷 / 5782期

基金：

英国惠康基金;

关键词：

D O I：

10.1126/science.1124410

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Mathematical models predict that the future of the multidrug-resistant tuberculosis epidemic will depend on the fitness cost of drug resistance. We show that in laboratory-derived mutants of Mycobacterium tuberculosis, rifampin resistance is universally associated with a competitive fitness cost and that this cost is determined by the specific resistance mutation and strain genetic background. In contrast, we demonstrate that prolonged patient treatment can result in multidrug-resistant strains with no fitness defect and that strains with low- or no-cost resistance mutations are also the most frequent among clinical isolates.

引用

页码：1944 / 1946

页数：3

共 28 条

[1] The biological cost of antibiotic resistance [J].