Results 101 to 110 of about 79,616 (304)

The ER–Golgi intermediate compartment is a key membrane source for the LC3 lipidation step of autophagosome biogenesis

eLife, 2013
Autophagy is a catabolic process for bulk degradation of cytosolic materials mediated by double-membraned autophagosomes. The membrane determinant to initiate the formation of autophagosomes remains elusive.
Liang Ge, David Melville, Min Zhang, Randy Schekman   +3 more
doaj   +1 more source

Hyperandrogenemia Induces Trophoblast Ferroptosis and Early Pregnancy Loss in Patients With PCOS via CMA‐Dependent FTH1 Degradation

Advanced Science, EarlyView.
In PCOS patients with hyperandrogenemia, decreased ferritin heavy chain 1 (FTH1) causes Fe2⁺ overload and ferroptosis in trophoblasts. Androgens induce FTH1 protein degradation via AR‐LAMP2A‐mediated chaperone‐mediated autophagy pathway, leading to placental development disruption and early pregnancy loss. Metformin mitigates androgen‐induced placental
Hanjing Zhou, Weijie Yang, Na Liu, Qing Liu, Jiamin Jin, Chenqiong Zhao, Xiaoying Jin, Miao Gui, Haiyan Zhu, Songying Zhang, Yinli Zhang   +10 more
wiley   +1 more source

Interaction of mycobacterium tuberculosis with the host cells: a focus in the molecular mechanism involved in trafficking and autophagy [PDF]

, 2018
Tuberculosis (TB) is an ancient disease remaining a serious health threat worldwide. It is caused by Mycobacterium tuberculosis (Mtb), an acid-fast bacilli, non-sporulated, slow-growing, immobile and aerobic.
Colombo, Maria Isabel, Giai, Constanza, Zarelli, Valeria Eugenia Paola   +2 more
core  

Glutamate induces autophagy via the two-pore channels in neural cells [PDF]

, 2016
NAADP (nicotinic acid adenine dinucleotide phosphate) has been proposed as a second messenger for glutamate in neuronal and glial cells via the activation of the lysosomal Ca2+ channels TPC1 and TPC2.
 , ,, Antonioli, M, Bincoletto, C, Fimia, G, Hirata, H, Nascimento, A, Pereira, G, Piacentini, M, Smaili, S, Ureshino, R, Vescovo, T   +11 more
core   +4 more sources

Platelet Rubicon Bidirectional Regulation of GPVI and Integrin αIIbβ3 Signaling Mitigates Stroke Infarction Without Compromising Hemostasis

Advanced Science, EarlyView.
This study identifies Rubicon as a key platelet protein that bidirectionally regulates GPVI and integrin αIIbβ3 signaling. Platelet Rubicon protects against cerebral ischemia‐reperfusion injury by limiting infarction without increasing hemorrhage.
Xiaoyan Chen, Jingke Li, Yangyang Liu, Li Li, Xin Deng, Yilin Sheng, Xianyu Zhu, Xiao Jiang, Wei Li, Xueli Cai, Qiming Sun, Hu Hu   +11 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

TREM2-dependent effects on microglia in Alzheimer\u27s Disease [PDF]

, 2018
Alzheimer’s disease (AD) is a late-onset dementia characterized by the deposition of amyloid plaques and formation of neurofibrillary tangles (NFTs) which lead to neuronal loss and cognitive deficits.
Colonna, Marco, Ulland, Tyler K, Zhou, Yingyue   +2 more
core   +3 more sources

Extracellular Vesicle‐Delivered tRF‐His‐GTG‐1 Reprograms Neutrophil Lipophagy and Triggers Inflammation in COVID‐19

Advanced Science, EarlyView.
This study identifies platelet‐derived extracellular vesicles as key immunometabolic regulators in COVID‐19. The delivery of tRF‐His‐GTG‐1 to neutrophils activates TLR8mTOR signaling, disrupts lipophagy, and amplifies NET‐mediated inflammation. Importantly, targeting this axis restores neutrophil homeostasis, offering a potential therapeutic strategy ...
Tsai‐Ling Liao, Po‐Yu Liu, Yi‐Ming Chen, Kuo‐Tung Tang, Hung‐Jen Liu, Der‐Yuan Chen   +5 more
wiley   +1 more source

Autophagy: machinery and regulation

Microbial Cell, 2016
Macroautophagy/autophagy is an evolutionarily conserved cellular degradation process that targets cytoplasmic materials including cytosol, macromolecules and unwanted organelles.
Zhangyuan Yin, Clarence Pascual, Daniel J. Klionsky   +2 more
doaj   +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