Results 71 to 80 of about 473,018 (289)

ACE‐mediated Glycosylation Stabilizes PSAP To Promote GPR37‐dependent Macrophage‐Nucleus Pulposus Cells Crosstalk and TGFβ Signaling in Alleviating Intervertebral Disc Degeneration

Advanced Science, EarlyView.
ACE can modulate the CBL‐mediated K48 ubiquitination degradation of PSAP by altering its glycosylation levels in NP cells. As a result, NP cells secrete PSAP, which interacts with GPR37 on macrophage surfaces, facilitating their polarization toward the M2 phenotype. These M2 macrophages subsequently secrete TGFβ, which exerts feedback effects on the NP
Youfeng Guo, Feng Wang, Bijun Wang, Yu Zhou, Chao Wang, Tao Hu, Desheng Wu   +6 more
wiley   +1 more source

p16 deficiency attenuates intervertebral disc degeneration by adjusting oxidative stress and nucleus pulposus cell cycle

eLife, 2020
The cell cycle regulator p16 is known as a biomarker and an effector of aging. However, its function in intervertebral disc degeneration (IVDD) is unclear.
Hui Che, Jie Li, You Li, Cheng Ma, Huan Liu, Jingyi Qin, Jianghui Dong, Zhen Zhang, C. Xian, D. Miao, Liping Wang, Yongxin Ren   +11 more
semanticscholar   +1 more source

Mechanical Stress Triggers Premature Senescence in Cardiac Fibroblasts

Advanced Science, EarlyView.
Cellular senescence contributes to disease burden in cardiovascular disease (CVD) and aging, highlighting the need to understand its induction. In primary cardiac fibroblasts, reduced strain and increased frequency, mimicking CVD, elicit a distinct senescent phenotype compared to oxidative stress.
Stephanie E. Schneider, Adrienne K. Scott, Katie M. Gallagher, Emily Y. Miller, Soham Ghosh, Corey P. Neu   +5 more
wiley   +1 more source

BMSCs-derived exosomes overexpressing TGM2 inhibit lactate-induced oxidative stress related apoptosis in nucleus pulposus cells

陆军军医大学学报
Objective To explore the role and mechanism of exosomes derived from bone marrow mesenchymal stem cells (BMSCs) overexpressing transglutaminase 2 (TGM2) in lactate-mediated oxidative stress-induced apoptosis in nucleus pulposus cells.
LOU Jinhui, GAO Xiaoxin, ZHANG Yuyao
doaj   +1 more source

Stiffening of the nucleus pulposus upon axial loading of the intervertebral disc: An experimental in situ study

JOR Spine, 2018
Mechanical loading is inherently related to the function and degeneration of the intervertebral disc. We present a series of experiments aimed at measuring the effect of a loading/unloading cycle of the intervertebral disc on the mechanical properties of
Steven V. Beekmans, Kaj S. Emanuel, Theodoor H. Smit, Davide Iannuzzi   +3 more
doaj   +1 more source

Anti‐Swelling Hydrogel Combined With Nucleus Pulposus Cell Exosomes and Senolytic Drugs Efficiently Repair Intervertebral Disc Degeneration

Advanced Science, EarlyView.
In this study, a bifunctional anti‐swelling hydrogel system is developed, which encapsulated anti‐senescence drugs quercetin, dasatinib, nucleus pulposus‐derived exosomes (NP‐Exo) to clear senescent nucleus pulposus cells, regulate the inflammatory disc microenvironment, and enhance nucleus pulposus cells activity, ultimately promoting the repair of ...
Songfeng Chen, Hao Han, Yuhao Zhang, Longyu Li, Zhishuo Wang, Jiaming Zhang, Liang Han, Hongwei Kou, Guowei Shang, Chunfeng Shang, Zikuan Leng, Keya Mao, Chengwei Li, Lin Jin, Hongjian Liu   +14 more
wiley   +1 more source

Antioxidant Carbon Dot of Selenomethionine Alleviates Oxidative Stress in Intervertebral Disc Degeneration

Advanced Science, EarlyView.
A selenomethionine‐derived carbon dot (Se‐Met‐CD) serves as a potent nano‐antioxidant, efficiently scavenging reactive oxygen species, protecting nucleus pulposus cells from oxidative damage, restoring extracellular matrix homeostasis, and significantly mitigating intervertebral disc degeneration in vivo, which demonstrates great promise as a nanozyme ...
Qingzheng Zhang, Zongtai Liu, Yirong Sun, Changfeng Fu, Jianxun Ding   +4 more
wiley   +1 more source

Exosomes from mesenchymal stem cells modulate endoplasmic reticulum stress to protect against nucleus pulposus cell death and ameliorate intervertebral disc degeneration in vivo

Theranostics, 2019
Objectives: Intervertebral disc degeneration (IDD) is widely accepted as a cause of low back pain and related degenerative musculoskeletal disorders. Nucleus pulposus (NP) cell apoptosis which is related to excessive endoplasmic reticulum (ER) stress in ...
Zhiwei Liao, Rongjin Luo, Gaocai Li, Yu Song, Shengfeng Zhan, K. Zhao, Wenbin Hua, Yukun Zhang, Xinghuo Wu, Cao Yang   +9 more
semanticscholar   +1 more source

Glycosaminoglycans as Polyelectrolytes: Charge, Interactions, and Applications

ChemBioChem, EarlyView.
Glycosaminoglycans (GAGs) are linear, anionic biopolymers with their functions tightly linked to their charge. This review approaches GAGs from a polyelectrolyte perspective, shedding light on how the distribution of sulfate groups and, thus, negative charges, governs their interactions with other biomolecules.
Gergo Peter Szekeres, Eunjin Moon, Johanna K. Elter, Bryce Roper, Jayachandran Narayanan Nair Kizhakkedathu, Matthias Ballauff, Rainer Haag, Kevin Pagel   +7 more
wiley   +1 more source

Poly-3-hydroxybutyrate-co-3-hydroxyvalerate(PHBV)-Polyethylene glycol 20k(PEG20k) as a promising delivery system for PT2399 in the treatment of disc degeneration

Journal of Biological Engineering
Disc degeneration often leads to a highly prevalent symptom known as low back pain. Healthy nucleus pulposus tissue exhibited a hypoxic environment devoid of blood vessels, while degenerated nucleus pulposus experienced hypoxic deterioration and the ...
Zhencong Li, Weilin Zhang, Shengbang Huang, Zhiwen Dai, Jinguo Liang, Qiulan Qiu, Siyuan Chen, Weixiong Guo, Zhongwei Wang, Jinsong Wei   +9 more
doaj   +1 more source