Results 81 to 90 of about 300,385 (307)

Microenvironmental Reprogramming by 3D Anisotropic Cardiac Extracellular Matrix Induces Nuclear Remodeling and Epigenetic Maturation of Chemically Induced Cardiomyocytes

open access: yesAdvanced Functional Materials, EarlyView.
A 3D anisotropic hydrogel derived from heart extracellular matrix guides cytoskeletal alignment and nuclear remodeling in reprogrammed cardiomyocyte‐like cells. This study reveals how matrix alignment modulates nuclear envelope dynamics and chromatin state, triggering transcriptional and functional maturation.
Seung Ju Seo   +7 more
wiley   +1 more source

Key role for store-operated Ca2+ channels in activating gene expression in human airway bronchial epithelial cells.

open access: yesPLoS ONE, 2014
Ca2+ entry into airway epithelia is important for activation of the NFAT family of transcription factors and expression of genes including epidermal growth factor that help orchestrate local inflammatory responses. However, the identity of epithelial Ca2+
Krishna Samanta   +2 more
doaj   +1 more source

STIM and Orai1 variants in store-operated calcium entry

open access: yesFrontiers in Pharmacology, 2016
Store-operated Ca2+ is an ubiquitous mechanism for Ca2+ entry in eukaryotic cells. This route for Ca2+ influx is regulated by the filling state of the intracellular Ca2+ stores communicated to the plasma membrane channels by the proteins of the STIM ...
JUAN ANTONIO ROSADO   +3 more
doaj   +1 more source

Calcium Oscillations in Pancreatic α-cells Rely on Noise and ATP-Driven Changes in Membrane Electrical Activity

open access: yesFrontiers in Physiology, 2020
In pancreatic α-cells, intracellular Ca2+ ([Ca2+]i) acts as a trigger for secretion of glucagon, a hormone that plays a key role in blood glucose homeostasis.
Virginia González-Vélez   +4 more
doaj   +1 more source

Candidate amino acids involved in H+ gating of acid-sensing ion channel 1a [PDF]

open access: yes, 2008
Acid-sensing ion channels are ligand-gated cation channels, gated by extracellular H+. H+ is the simplest ligand possible, and whereas for larger ligands that gate ion channels complex binding sites in the three-dimensional structure of the proteins have
Chen, Xuanmao   +4 more
core   +1 more source

Dynamic L-type CaV1.2 channel trafficking facilitates CaV1.2 clustering and cooperative gating. [PDF]

open access: yes, 2018
L-type CaV1.2 channels are key regulators of gene expression, cell excitability and muscle contraction. CaV1.2 channels organize in clusters throughout the plasma membrane.
Brust-Mascher, Ingrid   +8 more
core   +2 more sources

Adaptive Hydrogels With Spatiotemporal Stiffening Using pH‐Modulating Enzymes

open access: yesAdvanced Functional Materials, EarlyView.
The chemomechanical coupling in an adaptive hydrogel is studied to further the development of adaptive hydrogels. This coupling is achieved by embedding a pH‐modulating enzyme in a pH‐responsive hydrogel. The enzymatic reaction can be triggered locally, which generates a pH‐decreasing wave throughout the system, increasing the crosslinking density and ...
Natascha Gray   +3 more
wiley   +1 more source

Does Erythropoietin Regulate TRPC Channels in Red Blood Cells?

open access: yesCellular Physiology and Biochemistry, 2017
Background: Cation channels play an essential role in red blood cells (RBCs) ion homeostasis. One set of ion channels are the transient receptor potential channels of canonical type (TRPC channels).
Jens Danielczok   +10 more
doaj   +1 more source

LL‐37 Driven Phase Transition and Stacking in Oligolamellar Gram‐Negative Bacterial Membrane Models

open access: yesAdvanced Functional Materials, EarlyView.
This work establishes oligolamellar bacterial membrane models to investigate how LL‐37 disrupts the complex dual‐bilayer architecture of Gram‐negative bacteria. Combining SAXS, cryo‐TEM, electrophoretic mobility measurements, and coarse‐grained simulations, it reveals cardiolipin‐driven phase transitions leading to bicelle‐like structures and membrane ...
Bettina Tran   +5 more
wiley   +1 more source

TRP channels and Ca2+ signaling [PDF]

open access: yesCell Calcium, 2006
There is a rapidly growing interest in the family of transient receptor potential (TRP) channels because TRP channels are not only important for many sensory systems, but they are crucial components of the function of neurons, epithelial, blood and smooth muscle cells.
openaire   +2 more sources

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