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- W2895965288 abstract "Abstract The immune system maintains a balance between protection and tolerance. Regulatory T cells (Tregs) function as a vital tolerance mechanism in the immune system to suppress effector immune cells. Additionally, Tregs can be utilized as a form of immunotherapy for autoimmune disorders. As T cells have previously been shown to exhibit sensitivity to the rigidity of an activating substrate upon activation via IL‐2 secretion, we herein explore the previously unknown effect of substrate rigidity on the induction of Tregs from conventional naïve mouse CD4 + T cells. Substrates with modulatable rigidities ranging from a hundred kilopascals to a few megapascals were fabricated via poly(dimethylsiloxane). We found that there was a significant increase in Treg induction at lower substrate rigidities (i.e., E ~ 100 kPa) compared to higher rigidity levels (i.e., E ~ 3 MPa). To confirm that this significant difference in induction rate was truly related to T‐cell mechanosensing, we administered compound Y‐27632 to inhibit myosin contractility. In the presence of Y‐27632, the myosin‐based contractility was disrupted and, as a result, the difference in Treg induction caused by the substrate rigidity was abrogated. This study demonstrates that mechanosensing is involved in Treg induction and raises questions about the underlying molecular mechanisms involved in this process. © 2018 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 106A: 3001–3008, 2018." @default.
- W2895965288 created "2018-10-26" @default.
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- W2895965288 date "2018-10-10" @default.
- W2895965288 modified "2023-10-17" @default.
- W2895965288 title "<i>Ex vivo</i>induction of regulatory T cells from conventional CD4<sup>+</sup>T cells is sensitive to substrate rigidity" @default.
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- W2895965288 doi "https://doi.org/10.1002/jbm.a.36489" @default.
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