An elucidation of neutrophil functions against Mycobacterium tuberculosis infection.

An elucidation of neutrophil functions against Mycobacterium tuberculosis infection.
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DOI:
10.1155/2013/959650
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发表时间:
2013
影响因子:
--
通讯作者:
Venketaraman V
Venketaraman V
中科院分区:
其他
文献类型:
--
作者:
Morris D;Nguyen T;Kim J;Kassissa C;Khurasany M;Luong J;Kasko S;Pandya S;Chu M;Chi PT;Ly J;Lagman M;Venketaraman V

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我们描述了中性粒细胞对结核分枝杆菌(M. tb)感染,特别是谷胱甘肽(GSH)。我们研究了GSH在提高中性粒细胞控制细胞内M.肺结核感染。我们的研究结果表明,GSH脂质体制剂(L-GSH)增加细胞内GSH水平导致自由基水平降低和M酸化增加。tb吞噬体对M. TB.这种抑制机制依赖于TNF-α和IL-6的存在。我们的研究证明了一种新的调节机制,适应中性粒细胞控制M。肺结核感染。
We characterized the functions of neutrophils in response to Mycobacterium tuberculosis (M. tb) infection, with particular reference to glutathione (GSH). We examined the effects of GSH in improving the ability of neutrophils to control intracellular M. tb infection. Our findings indicate that increasing the intracellular levels of GSH with a liposomal formulation of GSH (L-GSH) resulted in reduction in the levels of free radicals and increased acidification of M. tb containing phagosomes leading to the inhibition in the growth of M. tb. This inhibitory mechanism is dependent on the presence of TNF-α and IL-6. Our studies demonstrate a novel regulatory mechanism adapted by the neutrophils to control M. tb infection.
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