The study was concerned with radiotherapy planning using individual data on tissue volume to be treated. The investigation used criteria based on correlations of TDF, actual volume identified by ultrasound, computed and magnetic resonance tomography and dose fractionation regime. As a result, grave complication rates dropped 3 times including cases of locally advanced tumors, non-traditional dose fractionation and advanced regimens of polychemotherapy.
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J Nucl Med
January 2025
Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland; and.
The treatment regimen for [Lu]Lu-prostate-specific membrane antigen (PSMA) 617 therapy follows that of chemotherapy: 6 administrations of a fixed activity, each separated by 6 wk. Mathematic modeling can be used to test the hypothesis that the current treatment regimen for a radiopharmaceutical modality is suboptimal. A mathematic model was developed to describe tumor growth during [Lu]Lu-PSMA therapy.
View Article and Find Full Text PDFAnn Surg Oncol
January 2025
Department of Radiotherapy and Physics, The Royal Marsden Hospital and The Institute of Cancer Research, London, UK.
For patients with nonmetastatic soft tissue sarcoma (STS) who are at high risk of local recurrence, the standard of care for limb-conserving local management is combined radiotherapy and surgery. Radiotherapy for STS entails 5 weeks of conventionally fractionated radiotherapy (25 × 2 Gy) preoperatively or 6 or more weeks postoperatively. There is growing interest in the use of preoperative hypofractionated regimes, viz.
View Article and Find Full Text PDFCancer Immunol Immunother
January 2025
National Centre for Asbestos Related Diseases, The University of Western Australia, Perth, Australia.
Combination immune checkpoint inhibitors (nivolumab and ipilimumab) are currently a first-line treatment for mesothelioma; however, not all patients respond. The efficacy of treatment is influenced by the tumor microenvironment. Murine mesothelioma tumors were irritated with various radiotherapy doses.
View Article and Find Full Text PDFSci Rep
December 2024
Princess Margaret Cancer Centre, University Health Network, Toronto, Canada.
Despite decades of improvements in cytotoxic therapy, the current standard of care for locally advanced pancreatic cancer (LAPC) provides, on average, only a few months of survival benefit. Stereotactic Body Radiation Therapy (SBRT), a technique that accurately delivers high doses of radiation to tumors in fewer fractions, has emerged as a promising therapy to improve local control of LAPC; however, its effects on the tumor microenvironment and hypoxia remain poorly understood. To explore how SBRT affects pancreatic tumors, we combined an orthotopic mouse model of pancreatic cancer with an intravital microscopy platform to visualize changes to the in vivo tumor microenvironment in real-time.
View Article and Find Full Text PDFSci Rep
December 2024
Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada.
Continued efforts to discover new antibacterial molecules are critical to achieve a robust pre-clinical pipeline for new antibiotics. Screening of compound or natural product extract libraries remains a widespread approach and can benefit from the development of whole cell assays that are robust, simple and versatile, and allow for high throughput testing of antibacterial activity. In this study, we created and validated two bioluminescent reporter strains for high-throughput screening, one in Pseudomonas aeruginosa, and another in a hyperporinated and efflux-deficient Escherichia coli.
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