Results 61 to 70 of about 26,150 (274)

Downregulation of cytoplasmic DNases is implicated in cytoplasmic DNA accumulation and SASP in senescent cells

, 2018
Accumulating evidence indicates that the senescence-associated secretory phenotype (SASP) contributes to many aspects of physiology and disease. Thus, controlling the SASP will have tremendous impacts on our health.
Watanabe, Yoshihiro, Fumitaka Kamachi, Naoko Ohtani, Hara, Eiji, Tze Mun Loo, Yoshihiro Watanabe, Takahashi, Akiko, Wakita, Masahiro, Masahiro Wakita, Kenichi Miyata, Kamachi, Fumitaka, Ohtani, Naoko, Loo, Tze Mun, Okada, Ryo, Sugiko Watanabe, Akiko Takahashi, Eiji Hara, Ryo Okada, Watanabe, Sugiko, Kawamoto, Shimpei, Glen N. Barber, Barber, Glen N, Shimpei Kawamoto, Miyata, Kenichi   +23 more
core   +1 more source

A Microenvironment‐Adaptive Scaffold Rejuvenates Peripheral Nerve Regeneration During Aging Via Dual Modulation of Ferroptotic Stimuli in Schwann Cells

Advanced Science, EarlyView.
(i) Aging impairs peripheral nerve regeneration via its dual ferroptosis‐mediated pathologies in senescent schwann cells. (ii) The composite nerve conduit is a symbiosis niche integrating microenvironment‐responsive nanoparticles (Ga‐PTAs) and maxillofacial‐derived mesenchymal stem cells (Mmscs).
Ning Zhan, Lixin Tian, Lianjie Peng, Jingyu Zhang, Lining Lin, Xiaoting Zhang, Yaxian Luo, Zhichao Liu, Xinhua Yao, Mouyuan Sun, Yong He, Mengfei Yu, Huiming Wang   +12 more
wiley   +1 more source

Impaired Chaperone‐Mediated Autophagy Accelerates Intervertebral Disc Degeneration by Inducing MIDN Accumulation to Target TSC2 for Proteasomal Degradation

Advanced Science, EarlyView.
This graphical abstract illustrates how chaperone‐mediated autophagy (CMA) regulates intervertebral disc degeneration (IDD). Under normal homeostasis (B), CMA degrades cytoplasmic Midnolin (MIDN) to maintain proteostasis. Under inflammatory stress (A), impaired CMA leads to cytoplasmic MIDN accumulation.
Xianglong Chen, Haiyang Gao, Wang Wu, Pengzhi Shi, Yuhang Chen, Anran Zhang, Zhangrong Cheng, Wenbo Wu, Zimu Yu, Yukun Zhang   +9 more
wiley   +1 more source

Bone Marrow Macrophage STING Signaling is a Direct Nexus Linking Marrow Adipose Expansion to NAD+ Depletion and Osteogenic Decline in Skeletal Aging

Advanced Science, EarlyView.
This study reveals that during skeletal aging, bone marrow adipocyte‐derived sDPP4 primes STING signaling in macrophages. In combination with mitochondrial DNA, this signaling activates CD38 and depletes local NAD+/NMN, thereby impairing osteogenesis.
Zhichao Li, Kuanhui Gao, Mengjie Wang, Songlin Liang, Dandan Li, Guoqing Tan, Haipeng Xue, Yujie Liu, Peng Zhang, Zhanwang Xu, Wenxiang Cheng, Yongjun Wang, Nianhu Li   +12 more
wiley   +1 more source

TGFBI Maintains Fibrocartilage Homeostasis by Restraining O‐GlcNAcylation to Inactivate and Destabilize ADAMTS16 in Temporomandibular Joint Osteoarthritis

Advanced Science, EarlyView.
TGFBI deficiency elevates O‐GlcNAcylation, promoting the transcriptional activation of ADAMTS16 and OGT‐mediated post‐translational modification of ADAMTS16 at Ser1170. This leads to its stabilization and accumulation, driving chondrocyte metabolic disorders and senescent phenotypes, ultimately resulting in fibrocartilage dysfunction and TMJOA ...
Xin Liu, Xinyue Luo, Jie Zhao, Ziyan Jiang, Jiayi Zhai, Taomin Zhu, Xueke Jia, Xiaohan Ma, Henghua Jiang, Huimin Li, Yaping Feng, Jin Ke, Xing Long   +12 more
wiley   +1 more source

Layer‐Specific Dermal and Subcutaneous Delivery via Modular LNP–Hydrogel‐Integrated Threaded Microneedles

Advanced Science, EarlyView.
Guided by spatial transcriptomics and clinical validation, a threaded microneedle platform enables precise layer‐specific delivery across the dermis and subcutaneous tissue. By addressing distinct pathogenic remodeling in different skin layers, this strategy coordinates compartment‐specific intervention, restores tissue architecture, and offers a ...
Fangzhou Xie, Yixiang Zhang, Shifeng Ling, Yuxuan Huang, Yingying Wei, Rao Fu, Jiahao He, Baikun Liu, Lucia Zhou, Kaifeng Huo, Yida Wang, Qingfeng Li, Yawei Du, Wenguo Cui, Yun Xie   +14 more
wiley   +1 more source

SASP: roadblock for tissue re-organization

Aging, 2013
Senescence has been shown to prevent and promote tumorigenesis. [1, 2] These results are not so paradoxical. To develop and maintain, organisms rely on cellular growth and cell division. Each of these processes is spatiotemporally finely tuned and both are tightly coordinated to ensure organism homeostasis throughout life.
openaire   +2 more sources

PLXDC2 siRNA‐Mediated Intervention Attenuates Microglial Senescence Through cGAS‐STING Signaling

Advanced Science, EarlyView.
PLXDC2 was identified as a microglial target in Parkinson's disease through human and mouse single‐cell analyses. Ferritin‐armed biomimetic nanovesicles delivered PLXDC2 siRNA, deferoxamine, and CeO2 nanoparticles across the blood–brain barrier, reducing cGAS‐STING activation, iron burden, oxidative stress, and senescence in microglia, thereby ...
Heyue Lu, Zitian Zheng, Feiran Wang, Huanhuan Luo, Fei Ju, Yucheng Zhu, Zheng Zhou, Jie Sun, Zhenghui Qiu, Xiang Luo, Zhongzheng Jia, Jianquan Wang, Hongjie Huang, Bo Zhang   +13 more
wiley   +1 more source

Lactylation‐Driven PROS1‐TYRO3‐CARF Signaling Promotes Therapy‐Induced Senescence Escape and Radioresistance in Meningioma

Advanced Science, EarlyView.
A glycolysis‐driven epigenetic switch promotes therapy resistance in meningioma. Increased lactate production enhances histone H3K27 lactylation, which activates PROS1 secretion. Secreted PROS1 engages TYRO3 signaling to degrade the senescence regulator CARF, allowing cancer cells to escape growth arrest.
Zhuohang Wang, Qixiang Zhang, Keman Liao, Xiaoyu Liu, Hongchi Zhang, Yunsheng Chen, Yuxiao Ma, Yikui Liu, Aoqian Xu, Yuhao Sun, Jiayi Chen, Liuguan Bian, Baofeng Wang   +12 more
wiley   +1 more source

Hierarchical Nanoplatform Integrating Oxidative–Acidic Microenvironment Remodeling and Bone Homeostasis Modulation for Diabetic Bone Defect Therapy

Advanced Science, EarlyView.
A hierarchical CM/LDH nanoplatform integrates ROS‐scavenging Ce‐MOF nanozymes with acid‐neutralizing CaAl‐LDH and is delivered within GelMA hydrogel to diabetic bone defects. By remodeling the oxidative‐acidic microenvironment, preserving mitochondrial homeostasis, and suppressing mtDNA–cGAS–STING inflammatory signaling, CM/LDH reduces proinflammatory ...
Xu Chen, Xingyu Zhu, Zhixin Qiu, Yijia Zhu, Xinhui Zheng, Dongqi Fan, Jinglei Zhan, Congxiu Mao, Ping Ji, Tao Chen, Qingqing He   +10 more
wiley   +1 more source