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Cited by 329

The DOI matches its Crossref record; 48 of the 48 references it cites were found in a registry or an index.

CD4 T Cells Promote Rather than Control Tuberculosis in the Absence of PD-1–Mediated Inhibition

Open access
Barber, Daniel L, Mayer-Barber, Katrin D, Feng, Carl G, Sharpe, Arlene H, Sher, Alan·2011·The Journal of Immunology

Abstract

Although CD4 T cells are required for host resistance to Mycobacterium tuberculosis, they may also contribute to pathology. In this study, we examine the role of the inhibitory receptor PD-1 and its ligand PD-L1 during M. tuberculosis infection. After aerosol exposure, PD-1 knockout (KO) mice develop high numbers of M. tuberculosis-specific CD4 T cells but display markedly increased susceptibility to infection. Importantly, we show that CD4 T cells themselves drive the increased bacterial loads and pathology seen in infected PD-1 KO mice, and PD-1 deficiency in CD4 T cells is sufficient to trigger early mortality. PD-L1 KO mice also display enhanced albeit less severe susceptibility, indicating that T cells are regulated by multiple PD ligands during M. tuberculosis infection. M. tuberculosis-specific CD8 T cell responses were normal in PD-1 KO mice, and CD8 T cells only had a minor contribution to the exacerbated disease in the M. tuberculosis-infected PD-1 KO and PD-L1 KO mice. Thus, in the absence of the PD-1 pathway, M. tuberculosis benefits from CD4 T cell responses, and host resistance requires inhibition by PD-1 to prevent T cell-driven exacerbation of the infection.

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Metadata

Authors
Barber, D. L., Mayer-Barber, K. D., Feng, C. G., Sharpe, A. H., & Sher, A.
Venue
The Journal of Immunology
Published
2011-02-01
Volume
186
Issue
3
Pages
1598-1607
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W2099717852
Cited by
329
References
48
FWCI
7.69
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: CD4 T Cells Promote Rather than Control Tuberculosis in the Absence of PD-1–Mediated Inhibition. https://app.cochat.ai/papers/10.4049/jimmunol.1003304
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Barber, D. L., Mayer-Barber, K. D., Feng, C. G., Sharpe, A. H., & Sher, A. (2011). CD4 T Cells Promote Rather than Control Tuberculosis in the Absence of PD-1–Mediated Inhibition. The Journal of Immunology. https://doi.org/10.4049/jimmunol.1003304

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.