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@ARTICLE{Bauer:136016,
author = {C. Bauer$^*$ and A. A. Abdul Pari$^*$ and V. Umansky$^*$
and J. Utikal$^*$ and P. Boukamp$^*$ and H. Augustin$^*$ and
S. Goerdt and C. Géraud and M. Felcht$^*$},
title = {{T}-lymphocyte profiles differ between keratoacanthomas and
invasive squamous cell carcinomas of the human skin.},
journal = {Cancer immunology immunotherapy},
volume = {67},
number = {7},
issn = {1432-0851},
address = {Berlin},
publisher = {Springer},
reportid = {DKFZ-2018-00716},
pages = {1147 - 1157},
year = {2018},
note = {DKFZ-ZMBH-Allianz},
abstract = {T-lymphocytes are involved in tumor progression and
regression. Actinic keratoses (AK) are atypical
proliferations of keratinocytes of the skin. Some AK
progress into invasive cutaneous squamous cell carcinomas
(cSCC). Keratoacanthomas (KA) are either classified as a
cSCC subtype or a benign tumor with histologic resemblance
to well-differentiated cSCC as it is supposed to regress
spontaneously. In contrast, cSCC represent malignant tumors
that may metastasize.To compare the T-lymphocyte profiles of
AK, KA and cSCC in relation to PD-L1 expression.Tissue
micro-arrays of 103 cases of AK, 43 cases of KA and 106
cases of cSCC were stained by immunohistochemistry for
E-cadherin, CD3, CD4, CD8, FOXp3, and the receptor-ligand
pair PD-1/PD-L1. Immunohistological scores were
computationally determined to assess PD-L1 expression as
well as the expression profiles of T-lymphocytes.AK had
lower numbers of CD3+ and PD-1+ cells compared to KA and
lower numbers of CD3+, CD8+ and PD-1+ cells in comparison
with cSCC. KA showed significantly higher numbers of CD4+
and FOXp3+ cells as well as lower numbers of CD8+ cells in
comparison with invasive cSCC. cSCC expressed significantly
more PD-L1 in comparison with AK and KA. Among cSCC PD-L1
expression was higher in moderately and
poorly-differentiated cSCC than in well-differentiated cSCC.
Increased PD-L1 expression also correlated with increased
numbers of CD4+, CD8+ and FOXp3+ cells in
cSCC.Tumor-associated T-lymphocyte infiltrates showed
significant differences between AK, KA and invasive cSCC.
PD-L1 expression correlated with invasion of T-cell
infiltrates in invasive cSCC.},
cin = {A190 / G300 / L101},
ddc = {610},
cid = {I:(DE-He78)A190-20160331 / I:(DE-He78)G300-20160331 /
I:(DE-He78)L101-20160331},
pnm = {311 - Signalling pathways, cell and tumor biology
(POF3-311)},
pid = {G:(DE-HGF)POF3-311},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29799076},
doi = {10.1007/s00262-018-2171-7},
url = {https://inrepo02.dkfz.de/record/136016},
}