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@ARTICLE{Miyan:130180,
author = {M. Miyan and J. Schmidt-Mende and R. Kiessling and I.
Poschke$^*$ and J. de Boniface},
title = {{D}ifferential tumor infiltration by {T}-cells
characterizes intrinsic molecular subtypes in breast
cancer.},
journal = {Journal of translational medicine},
volume = {14},
number = {1},
issn = {1479-5876},
address = {London},
publisher = {BioMed Central},
reportid = {DKFZ-2017-05260},
pages = {227},
year = {2016},
abstract = {Molecular subtypes of breast cancer and presence of
tumor-infiltrating immune cells have both been implicated as
important predictive and prognostic factors for improved
risk stratification and treatment individualization of
breast cancer patients. Their association, however, has not
been studied in detail. The aim of this study was to
evaluate the expression of the T cell markers CD8, FoxP3,
CD3 and ζ-chain in molecular subtypes of the invasive
margin and tumor center of breast cancer and corresponding
sentinel nodes and to deduct prognostic information from
these findings.Tumor and sentinel node sections from 177
patients with primary, invasive, unilateral early-stage
breast cancer were stained by immunohistochemistry and
T-cell phenotypes quantified manually. Clinical data were
collected from medical records.The degree of T-cell
infiltration and expression of all markers differed
significantly among the molecular subtypes, being highest in
non-luminal, more aggressive tumors: more T-cell
infiltration and higher expression of all markers were
associated with hormone receptor negativity, higher
proliferation and higher histological grades, but also with
larger tumor size. Basal-like tumors, and most remarkably
their tumor centers, hosted the highest number of
FoxP3+ T-cells with an unfavorable ratio to cytotoxic
CD8+ T-cells. T-cell infiltration was generally higher in
the invasive margin than the tumor center. A scoring system
based on densities of CD3 and CD8 could significantly
separate molecular subtypes (p < 0.001).Thus,
immunological patterns with functional implications within
each subtype are associated with prognostic factors. These
findings should be further validated in studies using larger
patient populations and longer follow-up.},
keywords = {Antigens, CD (NLM Chemicals) / Biomarkers (NLM Chemicals)},
cin = {G180},
ddc = {610},
cid = {I:(DE-He78)G180-20160331},
pnm = {317 - Translational cancer research (POF3-317)},
pid = {G:(DE-HGF)POF3-317},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:27473163},
pmc = {pmc:PMC4966793},
doi = {10.1186/s12967-016-0983-9},
url = {https://inrepo02.dkfz.de/record/130180},
}