CRISPR Screens Identify Toxoplasma Genes That Determine Parasite Fitness in Interferon Gamma-Stimulated Human Cells.
CRISPR Screens Identify Toxoplasma Genes That Determine Parasite Fitness in Interferon Gamma-Stimulated Human Cells.
复制标题
DOI:
10.1128/mbio.00060-23
复制
发表时间:
2023-04-25
期刊:
影响因子:
6.4
通讯作者:
Saeij, Jeroen P. J.
中科院分区:
文献类型:
--
作者:
Krishnamurthy, Shruthi;Maru, Parag;Wang, Yifan;Bitew, Mebratu A.;Mukhopadhyay, Debanjan;Yamaryo-Botte, Yoshiki;Paredes-Santos, Tatiana C.;Sangare, Lamba O.;Swale, Christopher;Botte, Cyrille Y.;Saeij, Jeroen P. J.
Toxoplasma virulence depends on its ability to evade or survive the toxoplasmacidal mechanisms induced by interferon gamma (IFNγ). While many Toxoplasma genes involved in the evasion of the murine IFNγ response have been identified, genes required to survive the human IFNγ response are largely unknown. In this study, we used a genome-wide loss-of-function screen to identify Toxoplasma genes important for parasite fitness in IFNγ-stimulated primary human fibroblasts. We generated gene knockouts for the top six hits from the screen and confirmed their importance for parasite growth in IFNγ-stimulated human fibroblasts. Of these six genes, three have homology to GRA32, localize to dense granules, and coimmunoprecipitate with each other and GRA32, suggesting they might form a complex. Deletion of individual members of this complex leads to early parasite egress in IFNγ-stimulated cells. Thus, prevention of early egress is an important Toxoplasma fitness determinant in IFNγ-stimulated human cells.
登录
查看更多内容
DOI:
10.2147/dddt.s60973
发表时间:
2017
期刊:
Drug design, development and therapy
影响因子:
--
作者:
Alday PH;Doggett JS
通讯作者:
Doggett JS
DOI:
10.1083/jcb.200309097
发表时间:
2004-06-07
期刊:
The Journal of cell biology
影响因子:
--
作者:
Arrizabalaga G;Ruiz F;Moreno S;Boothroyd JC
通讯作者:
Boothroyd JC
DOI:
10.1084/jem.20201314
发表时间:
2021-11-01
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Frickel EM;Hunter CA
通讯作者:
Hunter CA
影响因子:
3.4
作者:
LaFavers KA;Márquez-Nogueras KM;Coppens I;Moreno SNJ;Arrizabalaga G
通讯作者:
Arrizabalaga G
影响因子:
3.7
作者:
Fritz HM;Buchholz KR;Chen X;Durbin-Johnson B;Rocke DM;Conrad PA;Boothroyd JC
通讯作者:
Boothroyd JC