Whole cell screen for inhibitors of pH homeostasis in Mycobacterium tuberculosis.
Whole cell screen for inhibitors of pH homeostasis in Mycobacterium tuberculosis.
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DOI:
10.1371/journal.pone.0068942
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发表时间:
2013
期刊:
影响因子:
3.7
通讯作者:
Nathan C
中科院分区:
文献类型:
--
作者:
Darby CM;Ingólfsson HI;Jiang X;Shen C;Sun M;Zhao N;Burns K;Liu G;Ehrt S;Warren JD;Andersen OS;Brickner SJ;Nathan C
Bacterial pathogens like Mycobacterium tuberculosis (Mtb) encounter acidic microenvironments in the host and must maintain their acid-base homeostasis to survive. A genetic screen identified two Mtb strains that cannot control intrabacterial pH (pHIB) in an acidic environment; infection with either strain led to severe attenuation in mice. To search for additional proteins that Mtb requires to survive at low pH, we introduced a whole-cell screen for compounds that disrupt pHIB, along with counter-screens that identify ionophores and membrane perturbors. Application of these methods to a natural product library identified four compounds of interest, one of which may inhibit novel pathway(s). This approach yields compounds that may lead to the identification of pathways that allow Mtb to survive in acidic environments, a setting in which Mtb is resistant to most of the drugs currently used to treat tuberculosis.
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DOI:
10.1126/science.1208813
发表时间:
2011-09-16
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
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通讯作者:
Zhang Y
影响因子:
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作者:
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通讯作者:
RUSSELL, DG
影响因子:
1.8
作者:
Ingolfsson, Helgi I.;Andersen, Olaf S.
通讯作者:
Andersen, Olaf S.
DOI:
10.20506/rst.20.1.1268
发表时间:
2001-04-01
影响因子:
0.6
作者:
Montali, RJ;Mikota, SK;Cheng, LI
通讯作者:
Cheng, LI
影响因子:
4.9
作者:
FRANZBLAU, SG;WHITE, KE
通讯作者:
WHITE, KE