Impact of immunopathology on the antituberculous activity of pyrazinamide.
Impact of immunopathology on the antituberculous activity of pyrazinamide.
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DOI:
10.1084/jem.20180518
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发表时间:
2018-08-06
期刊:
影响因子:
--
通讯作者:
Dartois V
中科院分区:
文献类型:
--
作者:
Blanc L;Sarathy JP;Alvarez Cabrera N;O'Brien P;Dias-Freedman I;Mina M;Sacchettini J;Savic RM;Gengenbacher M;Podell BK;Prideaux B;Ioerger T;Dick T;Dartois V
This study presents a comprehensive lesion-centric analysis of disease progression in the rabbit model of tuberculosis, showing immunopathology and lesion heterogeneity similar to human and nonhuman primates. In this model, pyrazinamide sterilizes necrotic lesions, where persistent bacterial populations reside. In the 1970s, inclusion of pyrazinamide (PZA) in the drug regimen of tuberculosis (TB) patients for the first 2 mo achieved a drastic reduction of therapy duration. Until now, however, the mechanisms underlying PZA’s unique contribution to efficacy have remained controversial, and animal efficacy data vary across species. To understand how PZA kills bacterial populations present in critical lung lesion compartments, we first characterized a rabbit model of active TB, showing striking similarities in lesion types and fates to nonhuman primate models deemed the most appropriate surrogates of human TB. We next employed this model with lesion-centric molecular and bacteriology readouts to demonstrate that PZA exhibits potent activity against Mycobacterium tuberculosis residing in difficult-to-sterilize necrotic lesions. Our data also indicate that PZA is slow acting, suggesting that PZA administration beyond the first 2 mo may accelerate the cure. In conclusion, we provide a pharmacodynamic explanation for PZA’s treatment-shortening effect and deliver new tools to dissect the contribution of immune response versus drug at the lesion level.
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影响因子:
5.3
作者:
Irwin SM;Prideaux B;Lyon ER;Zimmerman MD;Brooks EJ;Schrupp CA;Chen C;Reichlen MJ;Asay BC;Voskuil MI;Nuermberger EL;Andries K;Lyons MA;Dartois V;Lenaerts AJ
通讯作者:
Lenaerts AJ
影响因子:
5.3
作者:
Gopal P;Nartey W;Ragunathan P;Sarathy J;Kaya F;Yee M;Setzer C;Manimekalai MSS;Dartois V;Grüber G;Dick T
通讯作者:
Dick T
DOI:
10.1164/rccm.200210-1125oc
发表时间:
2003-05-15
影响因子:
24.7
作者:
Jindani, A;Doré, CJ;Mitchison, DA
通讯作者:
Mitchison, DA
DOI:
10.1164/rccm.200605-637oc
发表时间:
2006-11-15
影响因子:
24.7
作者:
Chang, Kwok C.;Leung, Chi C.;Tam, Cheuk M.
通讯作者:
Tam, Cheuk M.
影响因子:
17.1
作者:
Coleman MT;Chen RY;Lee M;Lin PL;Dodd LE;Maiello P;Via LE;Kim Y;Marriner G;Dartois V;Scanga C;Janssen C;Wang J;Klein E;Cho SN;Barry CE 3rd;Flynn JL
通讯作者:
Flynn JL