Results 121 to 130 of about 231,673 (393)

Mechanoelectrical transduction in chondrocytes

Clinical and Experimental Pharmacology and Physiology, 2018
SummaryCartilage tissue lines the joints of mammals, helping to lubricate joint movement and distribute mechanical loads. This tissue is comprised of isolated cells known as chondrocytes which are embedded in an extracellular matrix. Chondrocytes produce and maintain the cartilage by sensing and responding to changing mechanical loads. Mechanosensitive
Servin-Vences, MR, Richardson, J, Lewin, GR, Poole, K   +3 more
openaire   +3 more sources

Targeting the PGRN‐BMP Lysosomal Axis With NPs@PGRN Reverses Immunometabolic Dysfunction in Chronic Septic Arthritis

Advanced Science, EarlyView.
Chronic septic arthritis involves intracellular bacterial persistence and lipid‐immune crosstalk via the PGRN‐BMP lysosomal axis. A dual‐targeting nanoparticle system (NPs@PGRN) restores lysosomal bactericidal function, reduces bacterial burden, and reprograms macrophage immunity, offering a novel therapeutic strategy. ABSTRACT Chronic septic arthritis,
Congsun Li, Jiaqi Fan, Tao Sun, Wushi Cui, Jiaxuan Zou, Weinan Yang, Liang Chen, Jian Xiao, Shicheng Wang, Tao Zhang, Jianqiao Hong, An Liu, Haobo Wu   +12 more
wiley   +1 more source

Cyclic mechanical load causes global translational arrest in articular chondrocytes: a process which is partially dependent upon PKR phosphorylation [PDF]

European Cells & Materials, 2011
he cellular mechanisms by which articular cartilage responds to load are poorly understood, but such responses may involve regulation at the level of protein translation rather than synthesis of mRNA.
C Lomas, XD Tang, A Chanalaris, J Saklatvala, TL Vincent   +4 more
doaj  

Time‐Controlled Refrigerated Stem Cell Therapy Mitigates Scleroderma Fibrosis via Modulation of Mitochondrial Autophagy and Gut Metabolism

Advanced Science, EarlyView.
This study established an RT‐MSCs‐based therapeutic approach for scleroderma in mice. RT‐MSCs attenuated fibrosis by regulating mitochondrial autophagy and restored gut microbiota homeostasis. Metabolomic analyses confirmed recovery of key metabolites, and RT‐MSCs demonstrated favorable lesion targeting and safety profiles.
Xue Xia, Chenfei Kong, Xiaoming Zhao, Naixu Shi, Jinlan Jiang, Ping Li   +5 more
wiley   +1 more source

Mechanical overloading causes mitochondrial superoxide and SOD2 imbalance in chondrocytes resulting in cartilage degeneration

Scientific Reports, 2015
Mechanical stress and aging are major risk factors of cartilage degeneration. Human studies have previously reported that oxidative damage increased, while SOD2 protein was reciprocally downregulated in osteoarthritic degenerated cartilage.
Masato Koike, H. Nojiri, Yusuke Ozawa, Kenji Watanabe, Y. Muramatsu, H. Kaneko, D. Morikawa, Keiji Kobayashi, Y. Saita, T. Sasho, T. Shirasawa, K. Yokote, K. Kaneko, Takahiko Shimizu   +13 more
semanticscholar   +1 more source

Single‐Cell Atlas of Subchondral Bone Marrow Lesions Reveals Proteostasis Dysfunction as a Druggable Mechanism for Early Osteoarthritis

Advanced Science, EarlyView.
This study reveals that abnormal mechanical stress downregulates the expression of HSP70 and impairs proteasome function in osteoarthritic bone cells, leading to misfolded collagen I accumulation and ER stress. When intracellular proteostasis capacity is exceeded, USP19 mediates the secretion of misfolded proteins into the extracellular space ...
Hailun Xu, Ting He, Yu Qian, Jia Li, Bowei Ni, Xiaojie Xu, Huanbo Wang, Peng Wang, Guoqing Cao, Siqi Ying, Guangyu Ding, Rong Wang, Zenghui Gu, Wei Li, Zhentao Man, Houfeng Zheng, Zhaohua Zhu, Zhen Li, Qingjun Meng, Chao Zheng, Liu Yang   +20 more
wiley   +1 more source

Hedgehog activation promotes osteogenic fates of growth plate resting zone chondrocytes through transient clonal competency

JCI Insight
The resting zone of the postnatal growth plate is organized by slow-cycling chondrocytes expressing parathyroid hormone-related protein (PTHrP), which include a subgroup of skeletal stem cells that contribute to the formation of columnar chondrocytes ...
Shion Orikasa, Yuki Matsushita, Hiroaki Manabe, Michael Fogge, Zachary Lee, Koji Mizuhashi, Naoko Sakagami, Wanida Ono, Noriaki Ono   +8 more
doaj   +1 more source

TBBPA exposure causes cartilage cell damage in both in vitro and in vivo models

Ecotoxicology and Environmental Safety
Tetrabromobisphenol A (TBBPA) is a widely used flame retardant. TBBPA is a persistent pollutant that is difficult to degrade and causes sustained pollution to the environment.
Bohao Yin, Chenjun Liu, Hui Sun, Wei Zhang   +3 more
doaj   +1 more source

The Regulatory Role of Signaling Crosstalk in Hypertrophy of MSCs and Human Articular Chondrocytes

International Journal of Molecular Sciences, 2015
Hypertrophic differentiation of chondrocytes is a main barrier in application of mesenchymal stem cells (MSCs) for cartilage repair. In addition, hypertrophy occurs occasionally in osteoarthritis (OA).
L. Zhong, Xiaobin Huang, M. Karperien, J. Post   +3 more
semanticscholar   +1 more source

Mechanical Overloading‐Induced Nanomineral Crystal Perturbation from the Osteochondral Interface: A Potential Initiator of Osteoarthritis

Advanced Science, EarlyView.
Laser‐induced graphene (LIG) provides a scalable, laser‐direct‐written route to porous graphene architecture with tunable chemistry and defect density. Through heterojunction engineering, catalytic functionalization, and intrinsic self‐heating, LIG achieves highly sensitive and selective detection of NOX, NH3, H2, and humidity, supporting next ...
Nan Jiang, Rong Ren, Zhan Su, Jiahao Zhou, Pinyin Cao, Sicheng Zhang, Zhen Li, Chao Li, Songsong Zhu   +8 more
wiley   +1 more source