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Published in: Cancer Immunology, Immunotherapy 6/2013

01-06-2013 | Original Article

Elevated level of peripheral CD8+CD28 T lymphocytes are an independent predictor of progression-free survival in patients with metastatic breast cancer during the course of chemotherapy

Authors: Guohong Song, Xiaoli Wang, Jun Jia, Yanhua Yuan, Fengling Wan, Xinna Zhou, Huabing Yang, Jun Ren, Jiezhun Gu, Herbert Kim Lyerly

Published in: Cancer Immunology, Immunotherapy | Issue 6/2013

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Abstract

Purpose

Suppression of cellular immunity resulting from tumorigenesis and/or therapy might promote cancer cells’ growth, progression and invasion. Here, we explored whether T lymphocyte subtypes from peripheral blood of metastatic breast cancer (MBC) female patients could be used as alternative surrogate markers for cancer progress. Additionally, plasma levels of interleukin (IL)-2, IL-4, IL-6, IL-10, IFN-γ, and transforming growth factor-β1 were quantitated from MBC and healthy volunteers.

Experimental design

This study included 89 female MBC patients during the post-salvage chemotherapy follow-up and 50 age- and sex-matched healthy volunteers as control. The percentages of T lymphocyte subpopulations from peripheral blood and plasma levels of cytokines were measured.

Results

Both CD8+CD28 and CD4+CD25+ were elevated in MBC patients compared to the control cohort (P < 0.05). In contrast, CD3+ and CD8+CD28+cells were significantly lower in MBC patients (P < 0.0001, P = 0.045, respectively). MBC patients had elevated levels of immunosuppressive cytokines IL-6 and IL-10. Patients with elevated CD8+CD28 and CD4+CD25+ cells showed increased levels of IL-6, and only patients with elevated CD8+CD28 had decreased interferon-γ. Univariate analysis indicated increased CD3+CD4+ or CD8+CD28+correlated with prolonged progression-free survival (PFS), while elevated CD8+CD28associated with shorten PFS. The percent of CD8+CD28 T lymphocytes is an independent predictor for PFS through multivariate analysis.

Conclusions

This study suggests that progressive elevated levels of CD8+CD28 suppressor T lymphocytes represent a novel independent predictor of PFS during post-chemotherapy follow-up.
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Metadata
Title
Elevated level of peripheral CD8+CD28− T lymphocytes are an independent predictor of progression-free survival in patients with metastatic breast cancer during the course of chemotherapy
Authors
Guohong Song
Xiaoli Wang
Jun Jia
Yanhua Yuan
Fengling Wan
Xinna Zhou
Huabing Yang
Jun Ren
Jiezhun Gu
Herbert Kim Lyerly
Publication date
01-06-2013
Publisher
Springer-Verlag
Published in
Cancer Immunology, Immunotherapy / Issue 6/2013
Print ISSN: 0340-7004
Electronic ISSN: 1432-0851
DOI
https://doi.org/10.1007/s00262-013-1424-8

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