Super-killer CTLs are generated by single gene deletion of Bach2.
Super-killer CTLs are generated by single gene deletion of Bach2.
复制标题
DOI:
10.1002/eji.202249797
复制
发表时间:
2022-11
影响因子:
5.4
通讯作者:
中科院分区:
文献类型:
--
作者:
Bach2 codes for a transcriptional regulator exerting major influences on T cell‐mediated immune regulation. Effector CTLs derived from in vitro activation of murine CD8+ T cells showed increased proliferative and cytolytic capacity in the absence of BACH2. Before activation, BACH2‐deficient splenic CD8+ T cells had a higher abundance of memory and reduced abundance of naïve cells compared to wild‐type. CTLs derived from central memory T cells were more potently cytotoxic than those derived from naïve T cells, but even within separated subsets, BACH2‐deficiency conferred a cytotoxic advantage. Immunofluorescence and electron microscopy revealed larger granules in BACH2‐deficient compared to wild‐type CTLs, and proteomic analysis showed an increase in granule content, including perforin and granzymes. Thus, the enhanced cytotoxicity observed in effector CTLs lacking BACH2 arises not only from differences in their initial differentiation state but also inherent production of enlarged cytolytic granules. These results demonstrate how a single gene deletion can produce a CTL super‐killer. CTLs generated from mice lacking BACH2 show increased target cell killing. This arises both from increased numbers of memory CD8+ (CD8+mem) relative to naïve (CD8+n) splenocytes as well as the increased expression of cytolytic proteins localised in enlarged granules. This study shows that loss of BACH2 generates “super‐killer” CTLs.
登录
查看更多内容
影响因子:
32.4
作者:
Herndler-Brandstetter D;Ishigame H;Shinnakasu R;Plajer V;Stecher C;Zhao J;Lietzenmayer M;Kroehling L;Takumi A;Kometani K;Inoue T;Kluger Y;Kaech SM;Kurosaki T;Okada T;Flavell RA
通讯作者:
Flavell RA
影响因子:
4.4
作者:
Cox, Juergen;Neuhauser, Nadin;Mann, Matthias
通讯作者:
Mann, Matthias
DOI:
10.1016/1043-4682(92)90021-m
发表时间:
1992-10-01
期刊:
Seminars in cell biology
影响因子:
--
作者:
Tooze, S A;Stinchcombe, J C
通讯作者:
Stinchcombe, J C
DOI:
10.4049/jimmunol.1600847
发表时间:
2016-08-15
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Richer MJ;Lang ML;Butler NS
通讯作者:
Butler NS
影响因子:
4.4
作者:
Lahmann, Annette;Kuhrau, Julia;Hutloff, Andreas
通讯作者:
Hutloff, Andreas