Journal
ADVANCED DRUG DELIVERY REVIEWS
Volume 163, Issue -, Pages 84-97Publisher
ELSEVIER
DOI: 10.1016/j.addr.2020.01.003
Keywords
Hyperthermia; Radiotherapy; Chemotherapy; DNA-repair; Hypoxia; Tumour-microenvironment
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Funding
- Dutch Cancer Society KWF [2012-5540, 2017-10873]
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Mild hyperthermia, local heating of the tumour up to temperatures <43 degrees C, has been clinically applied for almost four decades and has been proven to substantially enhance the effectiveness of both radiotherapy and chemotherapy in treatment of primary and recurrent tumours. Clinical results and mechanisms of action are discussed in this review, including the molecular and biological rationale of hyperthermia as radioand chemosensitizer as established in in vitro and in vivo experiments. Proven mechanisms include inhibition of different DNA repair processes, (in)direct reduction of the hypoxic tumour cell fraction, enhanced drug uptake, increased perfusion and oxygen levels. All mechanisms show different dose effect relationships and different optimal scheduling with radiotherapy and chemotherapy. Therefore, obtaining the ideal multi-modality treatment still requires elucidation of more detailed data on dose, sequence, duration, and possible synergisms between modalities. A multidisciplinary approach with different modalities including hyperthermia might further increase anti-tumour effects and diminish normal tissue damage. (C) 2020 Published by Elsevier B.V.
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