Results 91 to 100 of about 2,335,939 (309)

Identification of structural features of surface modifiers in engineered nanostructured metal oxides regarding cell uptake through ML-based classification

Beilstein Journal of Nanotechnology
Nanoparticles (NPs) are considered as versatile tools in various fields including medicine, electronics, and environmental science. Understanding the structural aspects of surface modifiers in nanoparticles that govern their cellular uptake is crucial ...
Indrasis Dasgupta, Totan Das, Biplab Das, Shovanlal Gayen   +3 more
doaj   +1 more source

Structural and biochemical analysis of a B12 superbinder

FEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices, Jacob J. Whittaker, Dirk J. Slotboom, Albert Guskov   +3 more
wiley   +1 more source

Uptake mechanism of ApoE-modified nanoparticles on brain capillary endothelial cells as a blood-brain barrier model [PDF]

, 2012
Background: The blood-brain barrier (BBB) represents an insurmountable obstacle for most drugs thus obstructing an effective treatment of many brain diseases.
Tikva Vogel, Zensi, Anja, von Briesen Hagen, Kreuter Jörg, Worek Franz, Tschickardt, Sabrina E., Sascha L Wien, Jörg Kreuter, Wien Sascha L., Vogel Tikva, Sabrina E Tschickardt, Wladislaw Maier, Vogel, Tikva, Sylvia Wagner, Claus U Pietrzik, Maier Wladislaw, Zensi Anja, Wien, Sascha L., Maier, Wladislaw, Tschickardt Sabrina E., Wagner, Sylvia, Pietrzik Claus U., Anja Zensi, Kreuter, Jörg, Worek, Franz, Hagen von Briesen, Pietrzik, Claus Ulrich, Briesen, Hagen von, Wagner Sylvia, Franz Worek   +29 more
core   +2 more sources

The cellular uptake and cytotoxic effect of curcuminoids on breast cancer cells

Taiwanese Journal of Obstetrics & Gynecology, 2012
Objective: Curcuminoids (including curcumin) are natural antioxidants demonstrating potent chemopreventive properties against several forms of cancer. This study investigated the antiproliferative and induced apoptotic effects of curcuminoids on three ...
Chi-Chang Chang, Chi-Feng Fu, Wei-Te Yang, Tzu-Yu Chen, Yi-Chiang Hsu   +4 more
doaj   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

Artificial molecular machines and motors—Design and control of nanoscale motion

FEBS Letters, EarlyView.
Molecules are constantly moving because of thermal fluctuations, but random motion alone cannot be exploited to perform directional tasks. Artificial molecular machines use chemical, electrical, or light energy to bias this motion. Molecular shuttles, rotary motors, and supramolecular pumps illustrate how nanoscale movement can be controlled and ...
Leonardo Andreoni, Alberto Credi
wiley   +1 more source

Convergent synthesis and cellular uptake of multivalent cell penetrating peptides derived from Tat, Antp, pVEC, TP10 and SAP [PDF]

, 2013
Cell penetrating peptides (CPP) are peptides of 10 to 30 residues derived from natural translocating proteins. Multivalency is known to enhance cellular uptake for the Tat peptide and closely related polycationic sequences.
Eggimann, Gabriela, Reymond, Jean-Louis, Darbre, Tamis, Buschor, Stefanie   +3 more
core   +1 more source

Cationic Liposomes Carrying siRNA: Impact of Lipid Composition on Physicochemical Properties, Cytotoxicity and Endosomal Escape

Nanomaterials, 2018
In recent year, cationic liposomes have gained a lot of attention for siRNA delivery. Despite this, intracellular barriers as endosomal escape and cytosolic delivery of siRNA still represent a challeng, as well as the cytotoxicity due to cationic lipids.
Anna Lechanteur, Vincent Sanna, Amandine Duchemin, Brigitte Evrard, Denis Mottet, Géraldine Piel   +5 more
doaj   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source

Metastatic niche shaped by host factors influences disseminated cancer cell fate

FEBS Letters, EarlyView.
Metastasis is shaped not only by cancer cells but also by the environments they encounter. This review explores how factors such as aging, diet, the microbiome, lifestyle, and environmental exposures remodel organ‐specific niches in the lung, liver, bone, and brain, influencing where metastatic cells survive, remain dormant, or grow, and ultimately ...
Gwennan Delyth Ward, Álvaro Ruiz‐Tabas, Patricia Altea‐Manzano   +2 more
wiley   +1 more source