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Cited by 951

The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.

Expression of Programmed Death 1 Ligands by Murine T Cells and APC

Open access
Yamazaki, Tomohide, Akiba, Hisaya, Iwai, Hideyuki, Matsuda, Hironori, Aoki, Mami, Tanno, Yuka, Shin, Tahiro, Tsuchiya, Haruo, Pardoll, Drew M, Okumura, Ko, Azuma, Miyuki, Yagita, Hideo·2002·The Journal of Immunology

Abstract

Programmed death 1 (PD-1) is a new member of the CD28/CTLA-4 family, which has been implicated in the maintenance of peripheral tolerance. Two ligands for PD-1, namely, B7-H1 (PD-L1) and B7-DC (PD-L2), have recently been identified as new members of the B7 family but their expression at the protein level remains largely unknown. To characterize the expression of B7-H1 and B7-DC, we newly generated an anti-mouse B7-H1 mAb (MIH6) and an anti-mouse B7-DC mAb (TY25). MIH6 and TY25 immunoprecipitated a single molecule of 43 and 42 kDa from the lysate of B7-H1 and B7-DC transfectants, respectively. Flow cytometric analysis revealed that B7-H1 was broadly expressed on the surface of mouse tumor cell lines while the expression of B7-DC was rather restricted. PD-1 was expressed on anti-CD3-stimulated T cells and anti-IgM plus anti-CD40-stimulated B cells at high levels but was undetectable on activated macrophages or DCs. B7-H1 was constitutively expressed on freshly isolated splenic T cells, B cells, macrophages, and dendritic cells (DCs), and up-regulated on T cells by anti-CD3 stimulation on macrophages by LPS, IFN-γ, GM-CSF, or IL-4, and on DCs by IFN-γ, GM-CSF, or IL-4. In contrast, B7-DC expression was only inducible on macrophages and DCs upon stimulation with IFN-γ, GM-CSF, or IL-4. The inducible expression of PD-1 ligands on both T cells and APCs may suggest new paradigms of PD-1-mediated immune regulation.

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Crossref · 10.4049/jimmunol.169.10.5538

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Metadata

Authors
Yamazaki, T., Akiba, H., Iwai, H., Matsuda, H., Aoki, M., Tanno, Y., Shin, T., Tsuchiya, H., Pardoll, D. M., Okumura, K., Azuma, M., & Yagita, H.
Venue
The Journal of Immunology
Published
2002-11
Volume
169
Issue
10
Pages
5538-5545
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W2162889226
Cited by
951
References
3
FWCI
9.60
Type
journal article
Language
en
Open access
bronze

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