Photoinactivation of catalase sensitizes a wide range of bacteria to ROS-producing agents and immune cells.
Photoinactivation of catalase sensitizes a wide range of bacteria to ROS-producing agents and immune cells.
复制标题
DOI:
10.1172/jci.insight.153079
复制
发表时间:
2022-05-23
期刊:
影响因子:
8
通讯作者:
Cheng, Ji-Xin
中科院分区:
文献类型:
--
作者:
Dong, Pu-Ting;Jusuf, Sebastian;Hui, Jie;Zhan, Yuewei;Zhu, Yifan;Liu, George Y.;Cheng, Ji-Xin
Bacteria have evolved to cope with the detrimental effects of ROS using their essential molecular components. Catalase, a heme-containing tetramer protein expressed universally in most aerobic bacteria, plays an indispensable role in scavenging excess hydrogen peroxide (H2O2). Here, through use of wild-type and catalase-deficient mutants, we identified catalase as an endogenous therapeutic target of 400–420 nm blue light. Catalase residing inside bacteria could be effectively inactivated by blue light, subsequently rendering the pathogens extremely vulnerable to H2O2 and H2O2-producing agents. As a result, photoinactivation of catalase and H2O2 synergistically eliminated a wide range of catalase-positive planktonic bacteria and P. aeruginosa inside biofilms. In addition, photoinactivation of catalase was shown to facilitate macrophage defense against intracellular pathogens. The antimicrobial efficacy of catalase photoinactivation was validated using a Pseudomonas aeruginosa–induced mouse abrasion model. Taken together, our findings offer a catalase-targeting phototherapy approach against multidrug-resistant bacterial infections.
登录
查看更多内容
影响因子:
62.1
作者:
Chen, Guanying;Qju, Hailong;Prasad, Paras N.;Chen, Xiaoyuan
通讯作者:
Chen, Xiaoyuan
影响因子:
5.4
作者:
Dwyer, Daniel J.;Kohanski, Michael A.;Collins, James J.
通讯作者:
Collins, James J.
影响因子:
3.9
作者:
FEIERABEND, J;ENGEL, S
通讯作者:
ENGEL, S
影响因子:
2.4
作者:
Amin RM;Bhayana B;Hamblin MR;Dai T
通讯作者:
Dai T
影响因子:
5.7
作者:
Guerra FE;Borgogna TR;Patel DM;Sward EW;Voyich JM
通讯作者:
Voyich JM