The evaluation of thermal cisplatin sensitization in normal and XP human cells using mild hyperthermia at 40 and 41 degrees C

The effect of protracted mild hyperthermia treatment at 40 and 41 degrees C given, concurrently with cisplatin, was evaluated in human normal AG1522 and human mutant XPA cells. While mild hyperthermia itself for up to 6 hours showed little to no toxic effects, it did result in significant sensitizat...

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Bibliographic Details
Published in:Anticancer research 2005-07, Vol.25 (4), p.2649
Main Authors: Raaphorst, G P, Yang, D P
Format: Article
Language:English
Subjects:
Antineoplastic Agents - pharmacology
Cell Death - drug effects
Cell Line
Cisplatin - pharmacology
Combined Modality Therapy
DNA Repair - physiology
Fibroblasts - cytology
Fibroblasts - drug effects
Humans
Hyperthermia, Induced - methods
Xeroderma Pigmentosum - genetics
Xeroderma Pigmentosum - pathology
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Summary:The effect of protracted mild hyperthermia treatment at 40 and 41 degrees C given, concurrently with cisplatin, was evaluated in human normal AG1522 and human mutant XPA cells. While mild hyperthermia itself for up to 6 hours showed little to no toxic effects, it did result in significant sensitization of response to cisplatin treatment. Sensitization for the normal and mutant cell line was comparable, indicating that nucleotide excision repair (NER) probably does not have a role in this process. For the 41 degrees C heating, thermotolerance developed and heating times greater than 4 hours resulted in protective effects from cisplatin cytotoxicity. This was not observed for heating at 40 degrees C for up to 6 hours.
ISSN:0250-7005
1791-7530