Skip to main content
Log in

NFAT5 Regulated by STUB1, Facilitates Malignant Cell Survival and p38 MAPK Activation by Upregulating AQP5 in Chronic Lymphocytic Leukemia

  • Original Article
  • Published:
Biochemical Genetics Aims and scope Submit manuscript

Abstract

Chronic lymphocytic leukemia (CLL) is a clonal proliferative disease of mature B lymphocytes. To further improve the prognosis of patients, it is necessary to further elucidate the pathogenesis of CLL and find more effective therapeutic targets. Nuclear Factor of Activated T cells 5 (NFAT5) is the major activated transcription factor (TF) upon osmotic pressure increase in mammalian cells, and it also regulates many target genes to affect various cellular functions. The effects of NFAT5 on tumor growth and metastasis have also been widely revealed. However, the effects of NFAT5 on the progression of CLL are still unclear. In this study, we found abnormally high expression of NFAT5 in human CLL patients. Additionally, NFAT5 depletion suppressed proliferation and stimulated apoptosis of CLL cells. Our data further confirmed NFAT5 regulated AQP5 expression and the phosphorylation of p38 MAPK. We also found that AQP5 overexpression reversed the inhibitory effect of NFAT5 depletion on cell proliferation in CLL cells. Furthermore, we revealed STUB1 directly bound to NFAT5 and promoted its degradation. Taken together, our results indicate the involvement of NFAT5 in CLL progression and suggest that NFAT5 could serve as a promising therapeutic target for CLL treatment.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

Data Availability

All data generated or analyzed during this study are included in this published article.

References

Download references

Author information

Authors and Affiliations

Authors

Contributions

BLC and YL designed the study, supervised data collection, SX and YN analyzed the data, interpreted the data, JZ prepare the manuscript for publication and reviewed the draft of the manuscript. All authors have read and approved the manuscript.

Corresponding author

Correspondence to Jiang Zhang.

Ethics declarations

Conflict of Interest

The authors state that there are no conflicts of interest to disclose.

Ethical Approval

Ethical approval was obtained from the Ethics Committee of Affiliated Hospital of Guilin Medical University.

Informed Consent

Written informed consent was obtained from legally authorized representative(s) for anonymized patient information to be published in this article.

Additional information

Publisher's Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Chen, B.L., Li, Y., Xu, S. et al. NFAT5 Regulated by STUB1, Facilitates Malignant Cell Survival and p38 MAPK Activation by Upregulating AQP5 in Chronic Lymphocytic Leukemia. Biochem Genet 59, 870–883 (2021). https://doi.org/10.1007/s10528-021-10040-3

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10528-021-10040-3

Keywords

Navigation