Results 121 to 130 of about 156,998 (303)

Intracellular proton pumps as targets in chemotherapy: V-ATPases and cancer [PDF]

, 2012
Cancer cells show a metabolic shift that makes them overproduce protons; this has the potential to disturb the cellular acid-base homeostasis. However, these cells show cytoplasmic alkalinisation, increased acid
Hernández López, Agustín, Pérez Castiñeira, José Román, Serrano Bueno, Gloria, Serrano Delgado, Aurelio   +3 more
core   +1 more source

Lysosome‐Acidifying Nanoparticles Rescue A30P α‐Synuclein Induced Neuronal Death in Cellular and Drosophila Models of Parkinson's Disease

Advanced Healthcare Materials, EarlyView.
Lysosome‐targeted acidic nanoparticles based on a biodegradable poly(ethylene tetrafluorosuccinate‐co‐succinate) copolymer are engineered to restore impaired lysosomal acidification through pH‐responsive intracellular degradation. Localized acid release enhances autophagic proteolysis, reduces α‐synuclein accumulation, and preserves dopaminergic neuron
Chih Hung Lo, Mengda Ren, Gavin Wen Zhao Loi, Eka Norfaishanty Saipuljumri, Jonathan Indajang, Kah Leong Lim, Jialiu Zeng   +6 more
wiley   +1 more source

Lysosomal dysfunction by inactivation of V-ATPase drives innate immune response in C. elegans

Cell Reports
Summary: Pathogens target vacuolar ATPase (V-ATPase) to inhibit lysosomal acidification or lysosomal fusion, causing lysosomal dysfunction. However, it remains unknown whether cells can detect dysfunctional lysosomes and initiate an immune response.
Xuepiao Pu, Bin Qi
doaj   +1 more source

HID-1 controls formation of large dense core vesicles by influencing cargo sorting and trans-Golgi network acidification [PDF]

, 2017
Large dense core vesicles (LDCVs) mediate the regulated release of neuropeptides and peptide hormones. They form at the trans-Golgi network (TGN), where their soluble content aggregates to form a dense core, but the mechanisms controlling biogenesis are ...
Asensio, Cedric S, Burns, Christian, Chen, Lan, de Leeuw, Noah F, Fitzpatrick, James A. J., Hosford, Bethany, Hummer, Blake H, Joens, Matthew S   +7 more
core   +2 more sources

Biomimetic Copper‐Doped Nano‐Aluminum Adjuvant Potentiates Therapy in Chemoresistant Acute Myeloid Leukemia

Advanced Healthcare Materials, EarlyView.
We developed a novel copper‐doped aluminum nano‐adjuvant (CuNA) to overcome cytarabine resistance in acute myeloid leukemia (AML). CuNA effectively sensitizes drug‐resistant AML cells to cytarabine by inducing mitochondrial dysfunction and inhibiting HMGCR/GPX4 to amplify ferroptosis.
Chao He, Lingxiao Zhang, Yue Xiong, Yu Wang, Yuqing Zeng, Dandan Su, Ran Wang, Ying Li, Hongbo Chen, Fang Cheng, Zhi Ping Xu   +10 more
wiley   +1 more source

Cryo-EM structures of intact V-ATPase from bovine brain

Nature Communications, 2020
The vacuolar-type H+ -ATPases (V-ATPase) hydrolyze ATP to pump protons across the plasma or intracellular membrane. Here authors report two cryo-EM structures of the intact V-ATPase from bovine brain with all the subunits including the subunit H, which ...
Rong Wang, Tao Long, Abdirahman Hassan, Jin Wang, Yingyuan Sun, Xiao-Song Xie, Xiaochun Li   +6 more
doaj   +1 more source

Alignment of cryo-EM movies of individual particles by optimization of image translations

, 2015
Direct detector device (DDD) cameras have revolutionized single particle electron cryomicroscopy (cryo-EM). In addition to an improved camera detective quantum efficiency, acquisition of DDD movies allows for correction of movement of the specimen, due ...
Brubaker, Marcus A., Rubinstein, John L.
core   +1 more source

Similarities and differences between the E5 oncoproteins of bovine papillomaviruses type 1 and type 4: Cytoskeleton, motility and invasiveness in E5-transformed bovine and mouse cells [PDF]

, 2006
Bovine papillomaviruses (BPVs) are oncogenic viruses. In cattle, BPV-1/2 is associated with urinary bladder cancer and BPV-4 with upper GI tract cancer. BPV E5 is a small hydrophobic protein localised in the endoplasmic reticulum (ER) and Golgi apparatus
Anderson, Araibi, Ashrafi, Ashrafi, Barbara Marchetti, Brad Ozanne, Burnett, Campo, Carragher, DiMaio, Emmanuella Tsirimonaki, Faccini, Fackler, Frame, Frame, Frame, Frame, G. Hossein Ashrafi, Geiger, Hennigan, Jackson, Jaggar, Jarrett, Kasper, Lu, Lynn McGarry, M. Saveria Campo, Marchetti, Nobes, Nunbhakdi-Craig, O’Brien, O’Brien, O’Brien, Pennie, Robina Ullah, Schapiro, Schiller, Scott, Suprynowicz, zur Hausen   +39 more
core   +1 more source

A New 3D Colon on a Chip to Decipher the Influence of Mechanical Forces on the Physiological Cellular Ecosystem

Advanced Healthcare Materials, EarlyView.
To dissect how mechanical forces influence intestinal physiology, we developed a stretchable 3D colon‐on‐chip that integrates tunable topography, stiffness and peristalsis‐like motion within a physiologically relevant microenvironment. We showed that stretching is a dominant factor governing epithelial behavior, markedly enhancing proliferation and ...
Moencopi Bernheim‐Dennery, Lauriane Gérémie, Julie Brun, Lucas Chassatte, Giacomo Gropplero, Réda Bouras, Jieun Choo, Bertrand Cinquin, Alba Marcellan, Danijela Matic Vignjevic, Stéphanie Descroix   +10 more
wiley   +1 more source

CORE: Cholesterol Altered Lipid Nanoparticles for Splenic Expression of mRNA Payloads

Advanced Healthcare Materials, EarlyView.
In this paper researchers introduce CORE LNPs, a new class of lipid nanoparticles engineered to redirect mRNA expression away from the liver and into the spleen, a key immune organ. By combining chemical design with computational tools, they created cholesterol analogs that enable precise spleen‐targeted expression, providing greater applications for ...
Eshan A. Narasipura, Vincent Fung, Rachel VanKeulen‐Miller, Palas B. Tiwade, Owen S. Fenton   +4 more
wiley   +1 more source