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Cited by 343

The DOI matches its Crossref record; 11 of the 11 references it cites were found in a registry or an index.

Analysis of the Cellular Mechanism of Antitumor Responses and Autoimmunity in Patients Treated with CTLA-4 Blockade

Open access
Maker, Ajay V, Attia, Peter, Rosenberg, Steven A·2005·The Journal of Immunology

Abstract

We have demonstrated previously that the administration of CTLA-4 blockade has mediated objective cancer regression and autoimmunity in patients with metastatic melanoma. To explore the mechanism of these in vivo effects, we have studied the changes in lymphocyte phenotype and function in patients receiving anti-CTLA-4 Ab (MDX-010). Patients with stage IV melanoma or renal cell cancer were treated every 3 wk with an anti-CTLA-4 Ab with or without peptide immunization. Pheresis samples were analyzed using flow cytometry to determine lymphocyte cell surface markers. Gene expression analyses and proliferation assays were conducted on purified T cell subsets. Anti-CTLA-4 Ab did not inhibit the suppressive activity of CD4+CD25+ cells in vitro or in vivo. In addition, there was no decrease in the expression of CD4+CD25+ cells in whole PBMC, nor a decrease in Foxp3 gene expression in the CD4+ or CD4+CD25+ purified cell populations posttreatment. The percentage of CD4+, CD8+, CD4+CD25+, and CD4+CD25− T cells in PBMC expressing the activation marker HLA-DR increased following anti-CTLA-4 Ab administration. Therefore, our results suggest that the antitumor effects of CTLA-4 blockade are due to increased T cell activation rather than inhibition or depletion of T regulatory cells.

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Crossref · 10.4049/jimmunol.175.11.7746

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Metadata

Authors
Maker, A. V., Attia, P., & Rosenberg, S. A.
Venue
The Journal of Immunology
Published
2005-12-01
Volume
175
Issue
11
Pages
7746-7754
ISSN
  • 0022-1767 (ISSN-L)
  • 1550-6606
OpenAlex
W1536480181
Cited by
343
References
11
FWCI
12.72
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Analysis of the Cellular Mechanism of Antitumor Responses and Autoimmunity in Patients Treated with CTLA-4 Blockade. https://app.cochat.ai/papers/10.4049/jimmunol.175.11.7746
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Maker, A. V., Attia, P., & Rosenberg, S. A. (2005). Analysis of the Cellular Mechanism of Antitumor Responses and Autoimmunity in Patients Treated with CTLA-4 Blockade. The Journal of Immunology. https://doi.org/10.4049/jimmunol.175.11.7746

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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.