Results 91 to 100 of about 73,321 (302)

Lysosomal Dysfunction: Connecting the Dots in the Landscape of Human Diseases

Biology
Lysosomes are the main organelles responsible for the degradation of macromolecules in eukaryotic cells. Beyond their fundamental role in degradation, lysosomes are involved in different physiological processes such as autophagy, nutrient sensing, and ...
Elisabet Uribe-Carretero, Verónica Rey, Jose Manuel Fuentes, Isaac Tamargo-Gómez   +3 more
doaj   +1 more source

The BAR Domain Superfamily Proteins from Subcellular Structures to Human Diseases

Membranes, 2012
Eukaryotic cells have complicated membrane systems. The outermost plasma membrane contains various substructures, such as invaginations and protrusions, which are involved in endocytosis and cell migration.
Fatemeh Safari, Shiro Suetsugu
doaj   +1 more source

OATL1, a novel autophagosome-resident Rab33B-GAP, regulates autophagosomal maturation [PDF]

Journal of Cell Biology, 2011
Macroautophagy is a bulk degradation system conserved in all eukaryotic cells. A ubiquitin-like protein, Atg8, and its homologues are essential for autophagosome formation and act as a landmark for selective autophagy of aggregated proteins and damaged organelles.
Itoh, Takashi, Kanno, Eiko, Uemura, Takefumi, Waguri, Satoshi, Fukuda, Mitsunori   +4 more
openaire   +2 more sources

O‐GlcNAcylated TAP1 Impairs Antigen Presentation and Promotes Immune Evasion in Bladder Cancer

Advanced Science, EarlyView.
This article unveils a critical mechanism of immune evasion in bladder cancer, which the O‐GlcNAc modification of TAP1 disrupts antigen presentation. This modification triggers HLA‐A degradation, shielding tumor cells from CD8+ T cell attack. The findings highlight targeting this pathway as a promising therapeutic avenue to sensitize tumors to ...
Jinpeng Wu, Xueting Ren, Zhen Zhai, Lu Wang, Liang Liang, Zengqi Tan, Jiazhen Zhao, Yuxuan Han, Yuhan Li, Feng Guan, Xiang Li   +10 more
wiley   +1 more source

Syntaxin 17 recruitment to mature autophagosomes is temporally regulated by PI4P accumulation

eLife
During macroautophagy, cytoplasmic constituents are engulfed by autophagosomes. Lysosomes fuse with closed autophagosomes but not with unclosed intermediate structures. This is achieved in part by the late recruitment of the autophagosomal SNARE syntaxin
Saori Shinoda, Yuji Sakai, Takahide Matsui, Masaaki Uematsu, Ikuko Koyama-Honda, Jun-ichi Sakamaki, Hayashi Yamamoto, Noboru Mizushima   +7 more
doaj   +1 more source

FGF13 Deficiency Ameliorates Paclitaxel‐Induced Neuropathic Pain by Inhibiting VASH1‐Mediated Microtubule Detyrosination to Promote Mitophagy

Advanced Science, EarlyView.
FGF13 is upregulated in DRG neurons of PIPNP model mice. DRG neuron‐specific knockout of FGF13 ameliorates PIPNP symptoms. Mechanistically, FGF13 potentiates microtubule detyrosination by promoting VASH1 binding to microtubules. FGF13 knockout suppresses VASH1‐mediated microtubule detyrosination and promotes α‐tubulin tyrosination.
Yiming Dong, Yidan Wang, Simeng Lv, Zishan Dong, Kaixi Zhi, Xiuhua Guo, Xuyan Li, Ruoxi Yu, Yiyi Zhang, Siyuan Cheng, Chuan Wang   +10 more
wiley   +1 more source

A matter of timing

eLife
A change in the electric charge of autophagosome membranes controls the recruitment of SNARE proteins to ensure that membrane fusion occurs at the right time during autophagy.
Zhiqi Tian, Jiajie Diao
doaj   +1 more source

New insights into autophagosome–lysosome fusion

, 2017
Macroautophagy (autophagy) is a highly conserved intracellular degradation system that is essential for homeostasis in eukaryotic cells. Due to the wide variety of the cytoplasmic targets of autophagy, its dysregulation is associated with many diseases ...
Tamotsu Yoshimori, Shuhei Nakamura
core   +1 more source

Cuproptosis and Mitophagy Mediated by the THUMPD1/IGF2R‐Dependent Suppression of AKT and Activation of AMPK Signaling Suppress Lung Adenocarcinoma Progression

Advanced Science, EarlyView.
THUMPD1 drives a tumor‐suppressive signaling cascade in lung adenocarcinoma by promoting IGF2R expression. IGF2R associates with PPP2R1A to suppress AKT and activate AMPK, leading to SLC31A1 upregulation and copper accumulation. Elevated copper disrupts mitochondrial metabolism and induces excessive mitophagy, thereby restraining tumor growth and ...
Kai Wu, Bo Qin, Zhuoyu Gu, Weizheng Ding, Xiaoming Chen, Kaishang Zhang, Yujin Qiao, Shuang Yuan, Song Zhao, Xiangnan Li, Peng Zhang   +10 more
wiley   +1 more source

Molecular Mechanism of Autophagosome–Lysosome Fusion in Mammalian Cells

Cells
In eukaryotes, targeting intracellular components for lysosomal degradation by autophagy represents a catabolic process that evolutionarily regulates cellular homeostasis.
Po-Yuan Ke
doaj   +1 more source