Crossref journal-article
Proceedings of the National Academy of Sciences
Proceedings of the National Academy of Sciences (341)
Abstract

The osteopontin (Opn) glycoprotein has been implicated in diverse physiological processes, including vascularization, bone formation, and inflammatory responses. Studies of its role in immune responses has suggested that Opn can set the early stage of type-1 immune (cell-mediated) responses through differential regulation of IL-12 and IL-10 cytokine gene expression in macrophages. Although Opn has been suggested to play a role in the development of type-1 immunity, little is known about control of Opn gene expression. Here, we report that Opn gene expression in activated T cells, but not macrophages, is regulated by T-bet, a transcription factor that controls CD4 + T helper (Th1) cell lineage commitment. We also find that T-bet-dependent expression of Opn in T cells is essential for efficient skewing of CD4 + T and CD8 + T cells toward the Th1 and type 1 CD8 + T cells (Tc1) pathway, respectively. Taken together, these findings begin to delineate the genetic basis of Opn expression in T cells and further clarify the role of Opn in Th and Tc1 development.

Bibliography

Shinohara, M. L., Jansson, M., Hwang, E. S., Werneck, M. B. F., Glimcher, L. H., & Cantor, H. (2005). T-bet-dependent expression of osteopontin contributes to T cell polarization. Proceedings of the National Academy of Sciences, 102(47), 17101–17106.

Authors 6
  1. Mari L. Shinohara (first)
  2. Marianne Jansson (additional)
  3. Eun Sook Hwang (additional)
  4. Miriam B. F. Werneck (additional)
  5. Laurie H. Glimcher (additional)
  6. Harvey Cantor (additional)
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Dates
Type When
Created 19 years, 9 months ago (Nov. 14, 2005, 8:33 p.m.)
Deposited 3 years, 4 months ago (April 12, 2022, 1:51 p.m.)
Indexed 13 hours, 58 minutes ago (Sept. 3, 2025, 6:28 a.m.)
Issued 19 years, 9 months ago (Nov. 14, 2005)
Published 19 years, 9 months ago (Nov. 14, 2005)
Published Online 19 years, 9 months ago (Nov. 14, 2005)
Published Print 19 years, 9 months ago (Nov. 22, 2005)
Funders 0

None

@article{Shinohara_2005, title={T-bet-dependent expression of osteopontin contributes to T cell polarization}, volume={102}, ISSN={1091-6490}, url={http://dx.doi.org/10.1073/pnas.0508666102}, DOI={10.1073/pnas.0508666102}, number={47}, journal={Proceedings of the National Academy of Sciences}, publisher={Proceedings of the National Academy of Sciences}, author={Shinohara, Mari L. and Jansson, Marianne and Hwang, Eun Sook and Werneck, Miriam B. F. and Glimcher, Laurie H. and Cantor, Harvey}, year={2005}, month=nov, pages={17101–17106} }