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Effects of blood-brain barrier opening using ultrasound on tauopathies: A systematic review.
J Control Release
January 2025
Paris Brain Institute, ICM, Inserm U1127, CNRS UMR 7225, Sorbonne University, 75013 Paris, France.
Unlabelled: Blood-brain barrier opening with ultrasound can potentiate drug efficacy in the treatment of brain pathologies and also provides therapeutic effects on its own. It is an innovative tool to transiently, repeatedly and safely open the barrier, with studies showing beneficial effects in both preclinical models for Alzheimer's disease and recent clinical studies. The first preclinical and clinical work has mainly shown a decrease in amyloid burden in mice models and in patients.
View Article and Find Full Text PDFDual oxygen supply system of carbon dot-loaded microbubbles with acoustic cavitation for enhanced sonodynamic therapy in diabetic wound healing.
Biomaterials
January 2025
Department of Ultrasound in Medicine, The Second Affiliated Hospital of Zhejiang University School of Medicine, No. 88 Jiefang Road, Shangcheng District, Hangzhou, 310009, PR China; Research Center of Ultrasound in Medicine and Biomedical Engineering, The Second Affiliated Hospital of Zhejiang University School of Medicine, No. 88 Jiefang Road, Shangcheng District, Hangzhou, 310009, PR China; Research Center for Life Science and Human Health, Binjiang Institute of Zhejiang University, No. 66 Dongxin Avenue, Binjiang District, Hangzhou, 310053, PR China. Electronic address:
Diabetic wounds present significant treatment challenges due to their complex microenvironment, marked by persistent inflammation from bacterial infections, hypoxia caused by diabetic microangiopathy, and biofilm colonization. Sonodynamic therapy (SDT) offers potential for treating such wounds by targeting deep tissues with antibacterial effects, but its efficacy is limited by hypoxic conditions and biofilm barriers. To overcome these obstacles, we developed a novel approach using oxygen-carrying microbubbles loaded with Mn-doped carbon dots (MnCDs@OMBs) to enhance SDT and disrupt biofilms.
View Article and Find Full Text PDFEffect of ultrasound combined with microbubbles therapy on tumor hypoxic microenvironment.
Front Pharmacol
January 2025
Department of Ultrasound, Guangzhou First People's Hospital, South China University of Technology, Guangzhou, China.
Introduction: Tumor tissues exhibit significantly lower oxygen partial pressure compared to normal tissues, leading to hypoxia in the tumor microenvironment and result in resistance to tumor treatments. Strategies to mitigate hypoxia include enhancing blood perfusion and oxygen supply, for example,by decomposing hydrogen peroxide within the tumor. Improving hypoxia in the tumor microenvironment could potentially improve the efficacy of cancer treatments.
View Article and Find Full Text PDFaPD-L1-facilitated theranostic and tumor microenvironment remodeling of pancreatic cancer via docetaxel-loaded phase-transformation nanoparticles triggered by low-intensity pulsed ultrasound.
J Nanobiotechnology
January 2025
Department of Ultrasound, Fujian Medical University Union Hospital, 29 Xinquan Road, Fuzhou, China.
Early diagnosis of pancreatic ductal adenocarcinoma (PDAC) is challenging because of its depth, which often leads to misdiagnosis during ultrasound examinations. The unique PDAC tumor microenvironment (TME) is characterized by significant fibrous tissue growth, and high interstitial pressure hinders drug penetration into tumors. Additionally, hypoxia and immune suppression within the tumor contribute to poor responses to radiotherapy and chemotherapy, ultimately leading to an unfavorable prognosis.
View Article and Find Full Text PDFiRGD-Targeted Biosynthetic Nanobubbles for Ultrasound Molecular Imaging of Osteosarcoma.
Int J Nanomedicine
January 2025
Department of Ultrasound, The second People's Hospital of Shenzhen, The First Affiliated Hospital of Shenzhen University, Shenzhen, 518061, People's Republic of China.
Purpose: Osteosarcoma is the most common primary malignant tumor of the bone. However, there is a lack of effective means for early diagnosis due to the heterogeneity of tumors and the complexity of tumor microenvironment. αvβ3 integrin, a crucial role in the growth and spread of tumors, is not only an effective biomarker for cancer angiogenesis, but also highly expressed in many tumor cells.
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