Abstract
The SHP-1 protein encoded by the Ptpn6 gene has been extensively studied in hematopoietic cells in the context of inflammation. A point mutation in this gene (Ptpn6spin) causes spontaneous inflammation in mice, which has a striking similarity to neutrophilic dermatoses in humans. Recent findings highlighted the role of signaling adapters and kinases in promoting inflammation in Ptpn6spin mice; however, the underlying transcriptional regulation is poorly understood. Here, we report that SYK is important for driving neutrophil infiltration and initiating wound healing responses in Ptpn6spin mice. Moreover, we found that deletion of the transcription factor Ets2 in myeloid cells ameliorates cutaneous inflammatory disease in Ptpn6spin mice through transcriptional regulation of its target inflammatory genes. Furthermore, Ets-2 drives IL-1α-mediated inflammatory signaling in neutrophils of Ptpn6spin mice. Overall, in addition to its well-known role in driving inflammation in cancer, Ets-2 plays a major role in regulating IL-1α-driven Ptpn6spin-mediated neutrophilic dermatoses.
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Acknowledgements
We would like to thank Dr. Yury Miller for the Sykfl/fl mice and Dr. Bruce Beutler for the Ptpn6 mutant mice. We would like to thank the members of the Kanneganti lab for their comments and suggestions and Rebecca Tweedell, PhD, for scientific editing. This work was supported by the K22 NIAID Career Transition Award AI127836 to P.G., the National Institutes of Health grants CA163507, AR056296, AI124346 and AI101935 and by the American Lebanese Syrian Associated Charities to T.-D.K.
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S.T. and T.-D.K. conceptualized the study; S.T. designed the experiments; S.T., P.G., R.K. and A.B. performed the experiments; P.H. provided Ets2fl/fl mice; and S.T. analyzed the data and wrote the paper. All authors critically evaluated and edited the paper and approved the final version. T.-D.K. oversaw the project.
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Tartey, S., Gurung, P., Karki, R. et al. Ets-2 deletion in myeloid cells attenuates IL-1α-mediated inflammatory disease caused by a Ptpn6 point mutation. Cell Mol Immunol 18, 1798–1808 (2021). https://doi.org/10.1038/s41423-020-0398-7
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DOI: https://doi.org/10.1038/s41423-020-0398-7
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