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Potential and challenges of utilizing exosomes in osteoarthritis therapy (Review).
Int J Mol Med
March 2025
Department of Joint Surgery, Sports Medicine Center, Honghui Hospital, Xi'an Jiaotong University, Xi'an, Shanxi 710054, P.R. China.
Exosomes are integral to the pathophysiology of osteoarthritis (OA) due to their roles in mediating intercellular communication and regulating inflammatory processes. Exosomes are integral to the transport of bioactive molecules, such as proteins, lipids and nucleic acids, which can influence chondrocyte behavior and joint homeostasis. Given their properties of regeneration and ability to target damaged tissues, exosomes represent a promising therapeutic avenue for OA treatment.
View Article and Find Full Text PDFYONPs induce selective cytotoxicity, genomic instability, oxidative stress and ROS mediated mitochondrial apoptosis in human epidermoid skin A-431 Cancer cells.
Sci Rep
January 2025
Department of Chemistry, Faculty of Science, Cairo University, Giza, Egypt.
Yttrium oxide nanoparticles (YONPs) have emerged as a promising avenue for cancer therapy, primarily due to their distinctive properties that facilitate selective targeting of cancer cells. Despite their potential, the therapeutic effects of YONPs on human epidermoid skin cancer remain largely unexplored. This study was thus conducted to investigate the impact of YONPs on both human skin normal and cancer cells, with an emphasis on assessing their cytotoxicity, genotoxicity, and the mechanisms underlying these effects.
View Article and Find Full Text PDFSuperstable lipid vacuoles endow cartilage with its shape and biomechanics.
Science
January 2025
Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA, USA.
Conventionally, the size, shape, and biomechanics of cartilages are determined by their voluminous extracellular matrix. By contrast, we found that multiple murine cartilages consist of lipid-filled cells called lipochondrocytes. Despite resembling adipocytes, lipochondrocytes were molecularly distinct and produced lipids exclusively through de novo lipogenesis.
View Article and Find Full Text PDFElastic cartilage properties of the tip of the vocal process of the arytenoid cartilage.
Laryngoscope Investig Otolaryngol
February 2025
Objectives: This study aimed to investigate the histological and ultrastructural features of the elastic cartilage at the tip of the vocal process in the arytenoid cartilage, which is essential for laryngeal biomechanics.
Methods: Five larynges, including the vocal folds and epiglottis, were examined using transmission electron microscopy. The elastic cartilage at the tip of the vocal process was compared to the epiglottic cartilage within the same larynx to elucidate structural differences.
Impact of physiological ionic strength and crowding on kinesin-1 motility.
Cell Struct Funct
January 2025
Department of Cell Biology, Graduate School of Medical Sciences, Tokushima University.
The motility of biological molecular motors has typically been analyzed by in vitro reconstitution systems using motors isolated and purified from organs or expressed in cultured cells. The behavior of biomolecular motors within cells has frequently been reported to be inconsistent with that observed in reconstituted systems in vitro. Although this discrepancy has been attributed to differences in ionic strength and intracellular crowding, understanding how such parameters affect the motility of motors remains challenging.
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