Preclinical dosimetry is essential for guiding the design of animal radiopharmaceutical biodistribution, imaging, and therapy experiments, evaluating efficacy and/or toxicities in such experiments, ensuring compliance with ethical standards for animal research, and providing reasonable initial estimates of normal-organ doses in humans, required for clinical translation of new radiopharmaceuticals. This MIB guide provides a basic protocol for obtaining preclinical dosimetry estimates with organ-level dosimetry software.
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http://dx.doi.org/10.21203/rs.3.rs-3225362/v1 | DOI Listing |
BMC Med
January 2025
Department of Oncology, University of Oxford, Oxford, UK.
Background: The clinical translation of positron emission tomography (PET) radiotracers for cancer management presents complex challenges. We have developed consensus-based recommendations for preclinical and clinical assessment of novel and established radiotracers, applied to image different cancer types, to improve the standardisation of translational methodologies and accelerate clinical implementation.
Methods: A consensus process was developed using the RAND/UCLA Appropriateness Method (RAM) to gather insights from a multidisciplinary panel of 38 key stakeholders on the appropriateness of preclinical and clinical methodologies and stakeholder engagement for PET radiotracer translation.
Antioxidants (Basel)
November 2024
Department of Radiation Oncology, University of Pennsylvania, Philadelphia, PA 19104, USA.
Photodynamic therapy (PDT) relies on the interactions between light, photosensitizers, and tissue oxygen to produce cytotoxic reactive oxygen species (ROS), primarily singlet oxygen (O) through Type II photochemical reactions, along with superoxide anion radicals (O), hydrogen peroxide (HO), and hydroxyl radicals (OH) through Type I mechanisms. Accurate dosimetry, accounting for all three components, is crucial for predicting and optimizing PDT outcomes. Conventional dosimetry tracks only light fluence rate and photosensitizer concentration, neglecting the role of tissue oxygenation.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Microbiology, Tumor and Cell Biology, Science for Life Laboratory, Karolinska Institutet, Stockholm, Sweden.
About 50% of all cancers carry a mutation in p53 that impairs its tumor suppressor function. The p53 missense mutation p53 (p53 in mice) is a hotspot mutation in various cancer types. Therefore, monoclonal antibodies selectively targeting clinically relevant mutations like p53 could prove immensely value.
View Article and Find Full Text PDFFront Oncol
December 2024
Institute of Radiation Medicine (IRM), Helmholtz Zentrum München GmbH, German Research Center for Environmental Health, Neuherberg, Germany.
Eur J Nucl Med Mol Imaging
December 2024
Department of Nuclear Medicine, Peking University First Hospital, No. 8 Xishiku Str., Xicheng Dist, Beijing, 100034, China.
Purpose: CD38 is a glycoprotein highly specific to multiple myeloma (MM). Therapeutics using antibodies targeting CD38 have shown promising efficacy. However, the efficient stratification of patients who may benefit from daratumumab (Dara) therapy and timely monitoring of therapeutic responses remain significant clinical challenges.
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