Results 41 to 50 of about 12,390 (209)

Silicon carbide sensors in radiotherapy dosimetry: progress, challenges, and perspectives

Frontiers in Sensors
Accurate dosimetry is crucial in radiotherapy and particle therapy to ensure that prescribed doses are delivered to tumors while minimizing damage to healthy tissue. Advanced dosimetry systems are needed to meet the challenges of modern techniques (small
G. Petringa, M. Guarrera, A. Kurmanova, S. Tudisco, C. Verona , C. Verona , G. A. P. Cirrone   +6 more
doaj   +1 more source

A new platform for ultra-high dose rate radiobiological research using the BELLA PW laser proton beamline

Scientific Reports, 2022
Radiotherapy is the current standard of care for more than 50% of all cancer patients. Improvements in radiotherapy (RT) technology have increased tumor targeting and normal tissue sparing.
Jianhui Bin, Lieselotte Obst-Huebl, Jian-Hua Mao, Kei Nakamura, Laura D. Geulig, Hang Chang, Qing Ji, Li He, Jared De Chant, Zachary Kober, Anthony J. Gonsalves, Stepan Bulanov, Susan E. Celniker, Carl B. Schroeder, Cameron G. R. Geddes, Eric Esarey, Blake A. Simmons, Thomas Schenkel, Eleanor A. Blakely, Sven Steinke, Antoine M. Snijders   +20 more
doaj   +1 more source

Performance Estimation and Ex Vivo Validation of Untethered Magnetic Robots in Soft Tissue

Advanced Science, EarlyView.
This study presents an empirical model that quantitatively predicts the step‐out frequency of screw‐type untethered magnetic robots (UMRs) in soft viscoelastic environments, including ex vivo brain tissue. By integrating key parameters into a dimensionless framework, the model enables estimation of robot performance across a range of biological ...
Leendert‐Jan W. Ligtenberg, Thijs J. van der Burg, Stijn Y. Kolkman, Santiago Saavedra Castano, David Fernandez Rivas, Anke Klingner, Roger M. L. M. Lomme, Lucas S. Joziasse, Dorothee Wasserberg, H. Remco Liefers, Doron Ben Ami, Udi Sadeh, Oded Shoseyov, Giulio Dagnino, Pascal Jonkheijm, Jurgen J. Fütterer, Stefano Stramigioli, J. Frank W. Nijsen, Michiel C. Warlé, Islam S. M. Khalil   +19 more
wiley   +1 more source

DNA damage and cell death induced by exposure to ultra-high dose rate low-dose pulsed X-rays emitted from a kilojoule plasma focus device

Biological Research
Background FLASH radiotherapy, characterized by ultra-high dose rates (> 40 Gy/s), potentially spares normal tissues while maintaining antitumor efficacy (the FLASH effect).
Héctor Araya, Jalaj Jain, Rodrigo Andaur, José Moreno, Sergio Davis, Pablo Diaz, Ethel Velásquez, Josefa Orellana, Martín Ríos, Jessica Toro, Octavio Orellana-Serradell, Cristopher Fierro, Leopoldo Soto, Katherine Marcelain   +13 more
doaj   +1 more source

Ferroptosis Suppression by the M6A Reader IGF2BP1 Underlies Gemcitabine Resistance in Pancreatic Ductal Adenocarcinoma

Advanced Science, EarlyView.
IGF2BP1 promotes gemcitabine resistance in pancreatic cancer by stabilizing m6A‐modified FTH1 transcripts and protecting them in stress granules, thereby suppressing ferroptosis. Pharmacological inhibition of IGF2BP1 disrupts this protective pathway, restores ferroptotic sensitivity, and enhances gemcitabine efficacy in resistant tumors.
Ying‐Qin Zhu, Yue Huang, Jing‐Yuan Ye, Si‐Yuan Lu, Zhi‐De Liu, Ming‐Jian Ma, De‐Liang Fang, Zi‐Yi Zhao, Jin‐Zhao Xie, Jiao Chen, Xiao‐Yu Yin   +10 more
wiley   +1 more source

Overcoming Drug Resistance by Paclitaxel Resistance in Triple‐Negative Breast Cancer

Advanced Science, EarlyView.
In the murine triple‐negative breast cancer (TNBC) model, chemotherapy effectively increases tumor neoantigen burden (TNB). Here, the study constructs a liposomal nanovaccine using antigens derived from in vitro chemotherapy‐treated paclitaxel‐resistant TNBC 4T1 cells.
Bo Chen, Yangyi Wang, Tingting Li, Changqing Guo, Zhe Xie, Zhixian Zhang, Xinghua Han, Wei Wang, Jian Wang, Xiaopeng Ma, Yuanzeng Min   +10 more
wiley   +1 more source

FLASH radiotherapy combined with immunotherapy: From biological mechanisms to blockbuster therapeutics

Translational Oncology
FLASH ultra-high dose rate radiotherapy (RT) can effectively exert the protective effect on normal tissue and reduce the risk of treatment-related toxicity, without compromising the killing effect on tumor tissue, resulting in a significant differential ...
Yu Wang, Shu-Nan Qi, Nan Bi, Ye-Xiong Li
doaj   +1 more source

Potential of Nanoparticle‐Based Phototherapies for Future Treatment of Uveal Melanoma

Advanced Science, EarlyView.
This review evaluates nanoparticle‐based phototherapies for uveal melanoma, highlighting emerging strategies to enhance tumor targeting, light delivery, and treatment precision. Preclinical data indicate improved efficacy and reduced toxicity, supporting their potential to enhance localized treatment and future translational advances. (Generated by the
Emilie Lambert, Christophe Nguyen, Sean Edward Dunn, Magali Gary‐Bobo, Jérôme Lacombe, Justin Moser, Frédéric Zenhausern, Jean‐Olivier Durand, Frédérique Cunin   +8 more
wiley   +1 more source

Instantaneous dose rate as a crucial factor in reducing mortality and normal tissue toxicities in murine total-body irradiation: a comparative study of dose rate combinations

Molecular Medicine
Purpose The ultra-high dose rate (UHDR) radiation shows promise in eradicating tumors while reducing normal tissue toxicities. However, the biological outcomes of UHDR are influenced by various factors, particularly the mean dose rate and instantaneous ...
Hongyu Zhu, Shihua Liu, Jiaqi Qiu, Ankang Hu, Wanyi Zhou, Jian Wang, Weihang Gu, Yinuo Zhu, Hao Zha, Rong Xiang, Junli Li, Rui Qiu, Chong Zhao, Peng Huang, Xiaowu Deng   +14 more
doaj   +1 more source

Chemotherapy‐Activated GSK3β‐DNMT1 Signaling Upregulates CD47 to Evade Macrophage Phagocytosis and Drive Temozolomide Resistance in Glioblastoma

Advanced Science, EarlyView.
Temozolomide treatment activates GSK3β, driving DNMT1 phosphorylation, destabilization, and CD47 promoter hypomethylation in glioblastoma. This epigenetic shift upregulates CD47, enabling TMZ‐treated GBM cells to evade macrophage phagocytosis, survive chemotherapy, and acquire resistance.
Jie Li, Shuai Ying, Yi Zhang, Jingjing Wang, Quan Wan, Lingli Gong, Daxing Xu, Zhenkun Yang, Hongnian Lu, Ying Yin, Xiangming Fang, Zhening Pu   +11 more
wiley   +1 more source