Results 71 to 80 of about 62,100 (242)

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

Simultaneous and Positively Correlated NET Formation and Autophagy in Besnoitia besnoiti Tachyzoite-Exposed Bovine Polymorphonuclear Neutrophils

Frontiers in Immunology, 2019
Given that B. besnoiti tachyzoites infect host endothelial cells of vessels in vivo, they become potential targets for professional phagocytes [e.g., polymorphonuclear neutrophils (PMN)] when in search for adequate host cells or in case of host cell ...
Ershun Zhou, Iván Conejeros, Zahady D. Velásquez, Tamara Muñoz-Caro, Ulrich Gärtner, Carlos Hermosilla, Anja Taubert   +6 more
doaj   +1 more source

REGULATION OF CELLULAR IMMUNE RESPONSE BY NATURALLY OCCURRING PRODUCTS ON HEPATOCELLULAR CARCINOMA [PDF]

Research Journal of Applied Biotechnology, 2016
Hepatocellular carcinoma (HCC) is the most important case of liver cancer disease particularly in Egypt. On the other hand, autophagy plays critical role in cellular immune response in different disease including cancer.
Hany Khalil, Shaden Hanafy, Mohammed Banawy   +2 more
doaj   +1 more source

Autophagosome Formation: Cutting the Gordian Knot at the ER [PDF]

Current Biology, 2018
Autophagosome biogenesis and the origins of its isolation membrane have been a long-standing unresolved question, with the endoplasmic reticulum and its membrane contact sites with other organelles remaining the prime suspect. This concept has now been reinforced by recent advances uncovering roles of several ER membrane proteins in autophagosome ...
Bhawana, Bissa, Vojo, Deretic
openaire   +2 more sources

Targeting the HSPA8‐CMA‐ATP6V1A Axis Triggers Lysosomal Hyperacidification and Catastrophic Vacuolation in Prostate Cancer

Advanced Science, EarlyView.
Our experimental evidence supports a model in which ALO targets the HSPA8‐CMA‐ATP6V1A axis to induce lysosomal hyperacidification and initiate osmotic and lipidomic stress. These changes are associated with LMP and loss of lysosomal integrity in prostate cancer cells.
Bingzheng An, Ze Gao, Shuo Chen, Liwei Meng, Chen Zhang, Kefan Song, Haochen Cui, Lei Yan, Zhiqing Fang   +8 more
wiley   +1 more source

A mechanism that ensures non-selective cytoplasm degradation by autophagy

Nature Communications, 2023
In autophagy, a membrane cisterna called the isolation membrane expands, bends, becomes spherical, and closes to sequester cytoplasmic constituents into the resulting double-membrane vesicle autophagosome for lysosomal/vacuolar degradation.
Tetsuya Kotani, Yuji Sakai, Hiromi Kirisako, Chika Kakuta, Soichiro Kakuta, Yoshinori Ohsumi, Hitoshi Nakatogawa   +6 more
doaj   +1 more source

Formation of Autophagosomes Coincides with Relaxation of Membrane Curvature [PDF]

, 2019
Autophagy is an intracellular degradation process that employs complex membrane dynamics to isolate and break down cellular components. However, many unanswered questions remain concerning remodeling of autophagic membranes. Here, we focus on the advantages of theoretical modelling to study the formation of autophagosomes and to understand the origin ...
Agudo-Canalejo, J., Knorr, R.
openaire   +4 more sources

SNARE priming is essential for maturation of autophagosomes but not for their formation [PDF]

Proceedings of the National Academy of Sciences, 2017
Significance The contribution of SNARE-mediated membrane fusion to the different stages along the autophagic process is not well understood. In this work we demonstrate that inhibition of SNARE priming leads to impairment of the autophagic flux manifested by the accumulation of mature autophagosomes that do not fuse with the lysosomes.
Abada, Adi, Levin-Zaidman, Smadar, Porat, Ziv, Dadosh, Tali, Elazar, Zvulun   +4 more
openaire   +2 more sources

Molecular and Cellular Hallmarks of Age‐Related Vestibular Hair Cell Degeneration

Advanced Science, EarlyView.
This study utilizes single‐cell RNA‐seq transcriptomes, advanced imaging, and electrophysiology to examine universal and cell‐type‐specific aging signatures of vestibular hair cells. The study shows that impaired hair bundle function is a key driver of age‐related vestibular dysfunction.
Samadhi Kulasooriya, Huizhan Liu, Sarath Vijayakumar, Celia Bloom, Zhenhang Xu, Shu Tu, Benjamin J. Borgmeier, Mi Zhou, Litao Tao, Bechara Kachar, David Z. He   +10 more
wiley   +1 more source

MAM‐Localized MANF Counteracts Microinflammatory Stress to Attenuate Mitochondrial Dysfunction and Cataractogenesis in High Myopia

Advanced Science, EarlyView.
Chronic microinflammation in high myopia suppresses MANF in lens epithelial cells. MANF normally resides within MAMs and promotes ubiquitin‐mediated degradation of the ER Ca2+ pump SERCA2. MANF loss causes pathological SERCA2 accumulation, MAM hyperassembly, and disrupted ER‐to‐mitochondria Ca2+ transfer, leading to mitochondrial failure, oxidative ...
Xin Liu, Hao Li, Ching Kang, Dongling Guo, Shuyu Liu, Jiaqi Meng, Zhiqian Huang, Yu Du, Xiangjia Zhu   +8 more
wiley   +1 more source