Microparticles (MPs) are cellular vesicles produced by all cells in response to apoptosis or cellular activation. In this brief review, the evidence that MPs mediate the thrombotic propensity that characterizes patients with cancer is evaluated. It is concluded that while considerable data exist to support a critical pathophysiologic role of host or tumor cell-derived MPs in cancer-associated thrombosis, causality is not yet firmly established. The results of prospective clinical studies that are currently underway should clarify any causative relationship.
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http://dx.doi.org/10.1016/S0049-3848(10)70020-7 | DOI Listing |
ACS Appl Mater Interfaces
January 2025
Department of Biomedical Engineering, Translational Tissue Engineering Center, Johns Hopkins Translational ImmunoEngineering Center, and the Institute for Nanobiotechnology, Johns Hopkins School of Medicine, 400 N. Broadway, Smith Building 5017, Baltimore, Maryland 21231, United States.
Biomimetic particles that can replicate aspects of natural biological cell function are useful for advanced biological engineering applications. Engineering such particles requires mimicking the chemical complexity of the surface of biological cells, and this can be achieved by coating synthetic particles with naturally derived cell membranes. Past research has demonstrated the feasibility of utilizing cell membrane coatings from a variety of cell types to achieve extended blood circulation half-life.
View Article and Find Full Text PDFZhongguo Zhong Yao Za Zhi
November 2024
Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine Nanjing 210028, China Multi-component of Traditional Chinese Medicine and Microecology Research Center, Jiangsu Provincial Academy of Chinese Medicine Nanjing 210028, China.
Tumor metastasis is the main cause of death in clinical patients. The proposal of the pre-metastatic microenvironment hypothesis offers a new research direction for tumor metastasis. Targeting and inhibiting the activation of the stimulator of interferon genes(STING) signals by tumor cell-derived microparticles may help reduce tumor metastasis.
View Article and Find Full Text PDFAnimals (Basel)
December 2024
Department of Veterinary Medicine, College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon 24341, Republic of Korea.
A seven-month-old male Pomeranian presented with left forelimb lameness after a fall. Radiographic assessment confirmed proximal radial head and ulnar comminuted fracture. The initial surgical intervention involved the use of hybrid external skeletal fixation (ESF) to stabilize the radial head, concomitant with the application of a composite of bone morphogenetic protein type 2 (BMP-2)-loaded hydroxyapatite and gelatin microparticles at the fracture site.
View Article and Find Full Text PDFCarbohydr Res
February 2025
Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, Kochi, 682041, Kerala, India. Electronic address:
Chitosan is a natural polymer that can degrade in the environment and support green chemistry. It displays superior biocompatibility, easy access, and easy modification due to the reactive amino groups to transform or improve the physical and chemical properties. Chitosan can be chemically modified to enhance its properties, such as water solubility and biological activity.
View Article and Find Full Text PDFJ Vis Exp
November 2024
Department of Haematology, University Hospital of Bordeaux; Inserm U1034, Biology of Cardiovascular Disease.
Activated platelets promote coagulation primarily by exposing the procoagulant phospholipid phosphatidylserine (PS) on their outer membrane surfaces and releasing PS-expressing microvesicles that retain the original membrane architecture and cytoplasmic components of their originating cells. The accessibility of phosphatidylserine facilitates the binding of major coagulation factors, significantly amplifying the catalytic efficiency of coagulation enzymes, while microvesicle release acts as a pivotal mediator of intercellular signaling. Procoagulant platelets play a crucial role in clot stabilization during hemostasis, and their increased proportion in the bloodstream correlates with an increased risk of thrombosis.
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