Emerging Role for the PERK/eIF2α/ATF4 in Human Cutaneous Leishmaniasis.
Emerging Role for the PERK/eIF2α/ATF4 in Human Cutaneous Leishmaniasis.
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DOI:
10.1038/s41598-017-17252-x
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发表时间:
2017-12-06
影响因子:
4.6
通讯作者:
Lopes UG
中科院分区:
文献类型:
--
作者:
Dias-Teixeira KL;Calegari-Silva TC;Medina JM;Vivarini ÁC;Cavalcanti Á;Teteo N;Santana AKM;Real F;Gomes CM;Pereira RMS;Fasel N;Silva JS;Aktas BH;Lopes UG
Leishmania parasites utilize adaptive evasion mechanisms in infected macrophages to overcome host defenses and proliferate. We report here that the PERK/eIF2α/ATF4 signaling branch of the integrated endoplasmic reticulum stress response (IERSR) is activated by Leishmania and this pathway is important for Leishmania amazonensis infection. Knocking down PERK or ATF4 expression or inhibiting PERK kinase activity diminished L. amazonensis infection. Knocking down ATF4 decreased NRF2 expression and its nuclear translocation, reduced HO-1 expression and increased nitric oxide production. Meanwhile, the increased expression of ATF4 and HO-1 mRNAs were observed in lesions derived from patients infected with the prevalent related species L.(V.) braziliensis. Our data demonstrates that Leishmania parasites activate the PERK/eIF2α/ATF-4 pathway in cultured macrophages and infected human tissue and that this pathway is important for parasite survival and progression of the infection.
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影响因子:
5.2
作者:
Jheng JR;Ho JY;Horng JT
通讯作者:
Horng JT
影响因子:
4.8
作者:
Pereira, Renata M. S.;Dias Teixeira, Karina Luiza;Lopes, Ulisses G.
通讯作者:
Lopes, Ulisses G.
影响因子:
16
作者:
Harding, HP;Novoa, I;Ron, D
通讯作者:
Ron, D
DOI:
10.1007/s00018-016-2223-0
发表时间:
2016-09
期刊:
Cellular and molecular life sciences : CMLS
影响因子:
--
作者:
Loboda A;Damulewicz M;Pyza E;Jozkowicz A;Dulak J
通讯作者:
Dulak J
影响因子:
3.7
作者:
Galluzzi L;Diotallevi A;De Santi M;Ceccarelli M;Vitale F;Brandi G;Magnani M
通讯作者:
Magnani M