% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Liebers:131060,
author = {N. Liebers and T. Holland-Letz$^*$ and M. Welschof and A.
Høgset and D. Jäger and M. A. E. Arndt and J. Krauss},
title = {{H}ighly efficient destruction of squamous carcinoma cells
of the head and neck by photochemical internalization of
{R}anpirnase.},
journal = {Journal of experimental therapeutics $\&$ oncology},
volume = {12},
number = {2},
issn = {1359-4117},
address = {Philadelphia, Pa.},
publisher = {Old City Publ.},
reportid = {DKFZ-2017-06127},
pages = {113-120},
year = {2017},
abstract = {Photochemical Internalization is a novel drug delivery
technology for cancer treatment based on the principle of
Photodynamic Treatment. Using a photosensitizer that locates
in endocytic vesicles membranes of tumor cells,
Photochemical internalization enables cytosolic release of
endocytosed antitumor agents in a site-specific manner. The
purpose of the present in-vitro study was to explore whether
Photochemical Internalization is able to enhance the
efficacy of Ranpirnase, a cytotoxic amphibian ribonuclease,
for eradication of squamous cell carcinoma of the head and
neck.Cell viability was measured in 8 primary human cell
lines of squamous cell carcinoma of the head and neck after
treatment with Ranpirnase and Photochemical Internalization.
For Photochemical Internalization the photosensitizer
disulfonated tetraphenyl porphine was incubated with tumor
cells followed by exposure to blue light (435 nm).Our study
demonstrates significant enhancement of antitumor activity
of Ranpirnase by Photochemical Internalization. Treatment
responses were heterogeneous between the primary cancer cell
lines. Combining Photochemical Internalization with
Ranpirnase resulted in 4.6 to 1,940-fold increased
cytotoxicity when compared with the ribonuclease alone (P <
0.05).Cytotoxicity of Ranpirnase can be markedly enhanced by
Photochemical Internalization in squamous cell carcinoma of
the head and neck.},
cin = {C060},
ddc = {610},
cid = {I:(DE-He78)C060-20160331},
pnm = {313 - Cancer risk factors and prevention (POF3-313)},
pid = {G:(DE-HGF)POF3-313},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:29161778},
url = {https://inrepo02.dkfz.de/record/131060},
}