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Plos One : High Content Screening as High Quality Assay for Biological Evaluation of Photosensitizers in Vitro, Volume 8

By Hoheisel, Jörg D.

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Book Id: WPLBN0003949483
Format Type: PDF eBook :
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Reproduction Date: 2015

Title: Plos One : High Content Screening as High Quality Assay for Biological Evaluation of Photosensitizers in Vitro, Volume 8  
Author: Hoheisel, Jörg D.
Volume: Volume 8
Language: English
Subject: Journals, Science, Medical Science
Collections: Periodicals: Journal and Magazine Collection (Contemporary)
Historic
Publication Date:
Publisher: Plos

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Hoheisel, J. D. (n.d.). Plos One : High Content Screening as High Quality Assay for Biological Evaluation of Photosensitizers in Vitro, Volume 8. Retrieved from http://netlibrary.net/


Description
Description : A novel single step assay approach to screen a library of photdynamic therapy (PDT) compounds was developed. Utilizing high content analysis (HCA) technologies several robust cellular parameters were identified, which can be used to determine the phototoxic effects of porphyrin compounds which have been developed as potential anticancer agents directed against esophageal carcinoma. To demonstrate the proof of principle of this approach a small detailed study on five porphyrin based compounds was performed utilizing two relevant esophageal cancer cell lines (OE21 and SKGT-4). The measurable outputs from these early studies were then evaluated by performing a pilot screen using a set of 22 compounds. These data were evaluated and validated by performing comparative studies using a traditional colorimetric assay (MTT). The studies demonstrated that the HCS assay offers significant advantages over and above the currently used methods (directly related to the intracellular presence of the compounds by analysis of their integrated intensity and area within the cells). A high correlation was found between the high content screening (HCS) and MTT data. However, the HCS approach provides additional information that allows a better understanding of the behavior of these compounds when interacting at the cellular level. This is the first step towards an automated high-throughput screening of photosensitizer drug candidates and the beginnings of an integrated and comprehensive quantitative structure action relationship (QSAR) study for photosensitizer libraries.

 

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