Results 111 to 120 of about 58,150 (299)

Xenogeneic Mitochondrial Transplantation Improves Selected Age‐Associated Phenotypes in Mice

Advanced Science, EarlyView.
Yak‐derived xenogeneic mitochondrial transplantation improves selected age‐associated phenotypes in mice, enhances mitochondrial functional readouts, and engages host mitochondrial quality‐control pathways. Broad tissue biodistribution, increased ATP production and mtDNA copy number, reduced ROS levels and dysfunctional mitochondria, improved motility ...
Wenpeng Li, Xijia Wang, Yaning Hu, Zhen Yang, Tian Niu, Xingbo Zhao   +5 more
wiley   +1 more source

Engineered Exosomal miR‐146a‐5p Reprograms BMSC Fate and Restores Mitochondrial Homeostasis in Glucocorticoid‐Induced Osteonecrosis of Femoral Head

Advanced Science, EarlyView.
Exosomal miR‐146a‐5p is identified as a pivotal regulator in steroid‐induced osteonecrosis. Its reduction activates NF‐κB signaling, compromises mitophagy, and disrupts mitochondrial bioenergetics, resulting in autophagic disequilibrium. Engineered exosomes delivering miR‐146a‐5p reinstate mitochondrial function, augment oxidative phosphorylation and ...
Zehui Lv, Xuejie Cai, Yiming Xu, Xingdong Yang, Ruoying Wang, Han Wang, Yixin Bian, Jiawei Xu, Jiao Lu, Lulu Liu, Yingjie Wang, Jibin Song, Bin Feng, Xisheng Weng   +13 more
wiley   +1 more source

Targeting Lactate‐Driven Stromal Autophagy via MCT1 Disrupts the Immunosuppressive Niche and Sensitizes Pancreatic Cancer to PD‐1 Blockade

Advanced Science, EarlyView.
Tumor‐derived lactate activates PSCs through MCT1‐mediated Vps34 lactylation and autophagy. These activated PSCs secrete CXCL9/10, upregulating PD‐1 on CD8+ T cells via the CXCR3/STAT3 axis to foster immunosuppression. Disrupting this metabolic crosstalk by targeting MCT1 effectively sensitizes pancreatic cancer to PD‐1 blockade, presenting a promising
Wenfeng Zhuo, Rong Hu, Yuhang Hu, Ping Hu, Shengbo Han, Guozheng Lv, Zhu Zeng, Yong Zhao, Yang Li, Yan Huang, Yingsong Zhao, Hongda Wang, Guangyu Zhao, Eryang Zhao, Gang Zhao   +14 more
wiley   +1 more source

Development of GABARAP family protein-sensitive LIR-based probes for neuronal autophagy

Molecular Brain, 2019
Autophagy allows for lysosomal cellular degradation of cytosolic components. In particular, neuronal autophagy is essential for cellular homeostasis and neuronal survival and is tightly regulated by several autophagy-related (ATG) proteins in post ...
Pureum Jeon, Ju-Hui Park, Yong-Woo Jun, You-Kyung Lee, Deok-Jin Jang, Jin-A Lee   +5 more
doaj   +1 more source

Phospholipids in Autophagosome Formation and Fusion

Journal of Molecular Biology, 2016
Autophagosomes are double membrane organelles that are formed during a process referred to as macroautophagy. They serve to deliver cytoplasmic material into the lysosome for degradation. Autophagosomes are formed in a de novo manner and are the result of substantial membrane remodeling processes involving numerous protein-lipid interactions.
Martens, Sascha, Nakamura, Shuhei, Yoshimori, Tamotsu   +2 more
openaire   +2 more sources

A STRIPAK complex mediates axonal transport of autophagosomes and dense core vesicles through PP2A regulation.

, 2019
Here we show that the STRIPAK complex regulates the transport of a subset of organelles, autophagosomes and dense core vesicles. We have found that the dynein motor complex is linked to one of its cargo, autophagosomes through the STRIPAK complex.
Amanda Neisch (6424827), Thomas S Hays (86827), Thomas P. Neufeld (47696)   +2 more
core   +1 more source

ZNF33B Promotes Japanese Encephalitis Virus Infection by Regulating the Stability of M6A‐Modified Trim25 to Control the Autophagy Process

Advanced Science, EarlyView.
Upon JEV infection, ZNF33B recruits METTL14 to stabilize the METTL3‐METTL14 m6A methyltransferase complex, leading to increased m6A modification of host transcripts, including Trim25 mRNA. ZNF33B selectively binds m6A‐modified sites on Trim25 mRNA and accelerates its decay, resulting in reduced TRIM25 protein abundance.
Jian Du, Chunwei Li, Jiyuan Luo, Huizhi Zhang, Jinyan Zhang, Suya Wang, Huanchun Chen, Hongli Xu, Xiangmin Li, Ping Qian   +9 more
wiley   +1 more source

Ultrasound‐Activatable Piezoelectric Hydrogel Reprograms Mitochondrial Epigenetics for Osteoarthritis Therapy via the mTOR/GATD3A Axis

Advanced Science, EarlyView.
An ultrasound‐activatable piezoelectric hydrogel reprograms chondrocyte mitochondrial epigenetics via the mTOR/GATD3A axis, clearing damaged mitochondria and alleviating osteoarthritis progression in both mouse models and human cartilage explants. ABSTRACT The avascular nature of cartilage hinders drug delivery for osteoarthritis (OA) therapy.
Hui Zheng, Pengfei Yan, Peng Liu, Chang Yan, Mengqi Zhao, Zuyong Wang, Chao Ma, Rongkai Zhang, Xi Cui, Swee Hin Teoh   +9 more
wiley   +1 more source

Inhibitory effect of mTOR activator MHY1485 on autophagy: suppression of lysosomal fusion.

PLoS ONE, 2012
Autophagy is a major degradative process responsible for the disposal of cytoplasmic proteins and dysfunctional organelles via the lysosomal pathway. During the autophagic process, cells form double-membraned vesicles called autophagosomes that sequester
Yeon Ja Choi, Yun Jung Park, Ji Young Park, Hyoung Oh Jeong, Dae Hyun Kim, Young Mi Ha, Ji Min Kim, Yu Min Song, Hyoung-Sam Heo, Byung Pal Yu, Pusoon Chun, Hyung Ryong Moon, Hae Young Chung   +12 more
doaj   +1 more source

Autophagosome Formation in Mammalian Cells.

Cell Structure and Function, 2002
Macroautophagy is an intracellular degradation system for the majority of proteins and some organelles. The molecular mechanism of autophagy has been extensively studied using the yeast, Saccharomyces cerevisiae, during these past 10 years. These studies suggested that the molecular machinery of autophagosome formation is well conserved from yeast to ...
Mizushima, Noboru, Ohsumi, Yoshinori, Yoshimori, Tamotsu   +2 more
openaire   +3 more sources