Results 41 to 50 of about 710,101 (265)

Integration of circadian and hypoxia signaling via non‐canonical heterodimerization

open access: yesFEBS Letters, EarlyView.
CLOCK, BMAL1, and HIFs are basic helix‐loop‐helix and Per‐Arnt‐Sim domain (bHLH‐PAS) proteins, which function as transcription factors. bHLH‐PAS proteins are designated in two classes. Many class I proteins are regulated by environmental signals via their PAS domains, but such signals have not been identified for all.
Sicong Wang, Katja A. Lamia
wiley   +1 more source

Polymer–Lipid Hybrid Nanosystems: An Emerging Advanced Therapeutic Tool

open access: yesAdvances in Polymer Technology
Polymer–lipid hybrid (PLH) nanoparticles have become an appealing therapeutic delivery system owing to their special properties. These nanoparticles are made with polymer and lipid components and have garnered significant interest across therapeutic ...
Nnamdi Ikemefuna Okafor   +3 more
doaj   +1 more source

Combining MucilAir™ and Vitrocell® Powder Chamber for the In Vitro Evaluation of Nasal Ointments in the Context of Aerosolized Pollen

open access: yesPharmaceutics, 2018
Hay fever is notoriously triggered when nasal mucosa is exposed to allergenic pollen. One possibility to overcome this pollen exposure may be the application of an ointment with physical protective effects. In this context, we have investigated Bepanthen&
Julia Metz   +6 more
doaj   +1 more source

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Conserved structural motifs in PAS, LOV, and CRY proteins regulate circadian rhythms and are therapeutic targets

open access: yesFEBS Letters, EarlyView.
Cryptochrome and PAS/LOV proteins play intricate roles in circadian clocks where they act as both sensors and mediators of protein–protein interactions. Their ubiquitous presence in signaling networks has positioned them as targets for small‐molecule therapeutics. This review provides a structural introduction to these protein families.
Eric D. Brinckman   +2 more
wiley   +1 more source

Head‐to‐head comparison between ACQ and FRET in probing polymeric micelles

open access: yesView
Environmentally responsive fluorophores, such as those with aggregation‐caused quenching (ACQ) and Förster resonance energy transfer (FRET) properties, are widely used to track nanocarriers while minimizing artifacts.
Runtong Zhang   +9 more
doaj   +1 more source

Targeted delivery of celastrol to mesangial cells is effective against mesangioproliferative glomerulonephritis

open access: yesNature Communications, 2017
Mesangial cell-mediated glomerulonephritis is a frequent cause of kidney disease. Here the authors show that celastrol loaded in albumin nanoparticles efficiently targets mesangial cells, and is effective in rat models.
Ling Guo   +8 more
doaj   +1 more source

Exploring the Effects of Various Capping Agents on Zinc Sulfide Quantum Dot Characteristics and In‐vitro Fate

open access: yesChemistryOpen, 2023
The choice of capping agents used during the synthesis process of quantum dots (QDs) can significantly influence their fate and fundamental properties.
Zohre Montaseri   +3 more
doaj   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells

open access: yesFEBS Letters, EarlyView.
Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López   +2 more
wiley   +1 more source

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