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Cited by 1,645

The DOI matches its Crossref record; 51 of the 51 references it cites were found in a registry or an index.

Subsets of Myeloid-Derived Suppressor Cells in Tumor-Bearing Mice

Open access
Youn, Je-In, Nagaraj, Srinivas, Collazo, Michelle, Gabrilovich, Dmitry I·2008·The Journal of Immunology

Abstract

Myeloid-derived suppressor cells (MDSC) are a heterogeneous group of cells that play a critical role in tumor associated immune suppression. In an attempt to identify a specific subset of MDSC primarily responsible for immunosuppressive features of these cells, 10 different tumor models were investigated. All models showed variable but significant increase in the population of MDSC. Variability of MDSC expansion in vivo matched closely the effect of tumor cell condition medium in vitro. MDSC consists of two major subsets of Ly6G+Ly6Clow granulocytic and Ly6G−Ly6Chigh monocytic cells. Granulocytic MDSC have increased level of reactive oxygen species and undetectable level of NO whereas monocytic MDSC had increased level of NO but undetectable levels of reactive oxygen species. However, their suppressive activity per cell basis was comparable. Almost all tumor models demonstrated a preferential expansion of granulocytic subset of MDSC. We performed a phenotypical and functional analysis of several surface molecules previously suggested to be involved in MDSC-mediated suppression of T cells: CD115, CD124, CD80, PD-L1, and PD-L2. Although substantial proportion of MDSC expressed those molecules no differences in the level of their expression or the proportion, positive cells were found between MDSC and cells from tumor-free mice that lack immune suppressive activity. The level of MDSC-mediated T cell suppression did not depend on the expression of these molecules. These data indicate that suppressive features of MDSC is caused not by expansion of a specific subset but more likely represent a functional state of these cells.

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Metadata

Authors
Youn, J.-I., Nagaraj, S., Collazo, M., & Gabrilovich, D. I.
Venue
The Journal of Immunology
Published
2008-10
Volume
181
Issue
8
Pages
5791-5802
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W1925817305
Cited by
1,645
References
51
FWCI
22.65
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Subsets of Myeloid-Derived Suppressor Cells in Tumor-Bearing Mice. https://app.cochat.ai/papers/10.4049/jimmunol.181.8.5791
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Youn, J.-I., Nagaraj, S., Collazo, M., & Gabrilovich, D. I. (2008). Subsets of Myeloid-Derived Suppressor Cells in Tumor-Bearing Mice. The Journal of Immunology. https://doi.org/10.4049/jimmunol.181.8.5791

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