Identification of a JAK–STAT–miR155HG positive feedback loop in regulating natural killer (NK) cells proliferation and effector functions

The Janus kinase/signal transducers and activators of transcription (JAK-STAT) control natural killer (NK) cells development and cytotoxic functions, however, whether long non-coding RNAs (lncRNAs) are involved in this pathway remains unknown. We found that miR155HG was elevated in activated NK cells and promoted their proliferation and effector functions in both NK92 and induced-pluripotent stem cells (iPSCs)-derived NK (iPSC-NK) cells, without reliance on its derived miR-155 and micropeptide P155. Mechanistically, miR155HG bound to miR-6756 and relieved its repression of JAK3 expression, thereby promoting the JAK-STAT pathway and enhancing NK cell proliferation and function. Further investigations disclosed that upon cytokine stimulation, STAT3 directly interacts with miR155HG promoter and induces miR155HG transcription. Collectively, we identify a miR155HG-mediated positive feedback loop of the JAK-STAT signaling. Our study will also provide a power target regarding miR155HG for improving NK cell generation and effector function in the field of NK cell adoptive transfer therapy against cancer, especially iPSC-derived NK cells.

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Publication Details

Journal
Acta Pharmaceutica Sinica B
Published
2025-03-02
DOI
https://doi.org/10.1016/j.apsb.2025.02.034
Citations
4
Primary Topic
Immune Cell Function and Interaction
Type
article
Field-Weighted Citation Impact
3.19
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article

Identification of a JAK–STAT–miR155HG positive feedback loop in regulating natural killer (NK) cells proliferation and effector functions

Xiaofeng Yin, Yuan Gao, Jingyi Qiu, Qinglan Yang et al.
4 citations
Acta Pharmaceutica Sinica B
Immune Cell Function and Interaction
3.19
article

Identification of a JAK–STAT–miR155HG positive feedback loop in regulating natural killer (NK) cells proliferation and effector functions

Xiaofeng Yin, Yuan Gao, Jingyi Qiu, Qinglan Yang, Songyang Li, Yafei Deng, Zhaoyang Zhong, Xiangyu Wang, Youcai Deng, Hongyan Peng, Sulai Liu, Lanlan Huang, Lingling Zhang, Junping Wang, Yongjie Liu, Yana Li, Peiwen Xiong, Yang Yao, Shuting Wu, Yuxing Gong, Xinjia Liu, Zhiguo Tan
article en
4 citations

Abstract

The Janus kinase/signal transducers and activators of transcription (JAK-STAT) control natural killer (NK) cells development and cytotoxic functions, however, whether long non-coding RNAs (lncRNAs) are involved in this pathway remains unknown. We found that miR155HG was elevated in activated NK cells and promoted their proliferation and effector functions in both NK92 and induced-pluripotent stem cells (iPSCs)-derived NK (iPSC-NK) cells, without reliance on its derived miR-155 and micropeptide P155. Mechanistically, miR155HG bound to miR-6756 and relieved its repression of JAK3 expression, thereby promoting the JAK-STAT pathway and enhancing NK cell proliferation and function. Further investigations disclosed that upon cytokine stimulation, STAT3 directly interacts with miR155HG promoter and induces miR155HG transcription. Collectively, we identify a miR155HG-mediated positive feedback loop of the JAK-STAT signaling. Our study will also provide a power target regarding miR155HG for improving NK cell generation and effector function in the field of NK cell adoptive transfer therapy against cancer, especially iPSC-derived NK cells.

Acta Pharmaceutica Sinica BVol. 15(4)
Ministry of Education of the People's Republic of China (CN), Central South University (CN), Army Medical University (CN), Hunan Normal University (CN), Shanxi Medical University (CN), Anhui Medical University (CN), Chengdu Military General Hospital (CN), Hunan Children's Hospital (CN), First People's Hospital of Chongqing (CN), Columbia University (US), University of South China (CN)
Zero hunger
Openalex Percentile: Top 9%
Immune Cell Function and Interaction
3.19
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