Results 81 to 90 of about 44,336 (211)

New biosensors and transgenic mice for multiplex cGMP imaging

British Journal of Pharmacology, EarlyView.
Background and Purpose Cyclic guanosine monophosphate (cGMP) is a versatile second messenger that is important for human (patho‐)physiology and pharmacotherapy. Live‐cell imaging of cGMP with biosensors allows to elucidate its spatiotemporal dynamics in real time under close‐to‐native conditions. However, to monitor two separate cGMP pools or cGMP/cAMP
Markus Wolters, Martin Thunemann, Barbara Birk, Susanne Feil, Viacheslav O. Nikolaev, Moritz Lehners, Robert Feil   +6 more
wiley   +1 more source

Phosphodiesterase 1b (PDE1B) Regulates Spatial and Contextual Memory in Hippocampus

Frontiers in Molecular Neuroscience, 2019
Augmentation of cyclic nucleotide signaling through inhibition of phosphodiesterase (PDE) activity has long been understood to enhance memory. Efforts in this domain have focused predominantly on PDE4, a cAMP-specific phosphodiesterase implicated in ...
Susan McQuown, Shouzhen Xia, Karsten Baumgärtel, Richard Barido, Gary Anderson, Brian Dyck, Roderick Scott, Marco Peters   +7 more
doaj   +1 more source

Light-Activated Cyclic Nucleotide Phosphodiesterases [PDF]

Biophysical Journal, 2017
The second messengers 3′,5′-cyclic adenosine monophosphate (cAMP) and cyclic 3′,5′-cyclic guanosine monophosphate (cGMP) mediate various biological responses like apoptosis, smooth muscle relaxation and vision. Cyclic-nucleotide-dependent processes have been analyzed with spatiotemporal resolution through optogenetics.
Carlos F. Gasser, Peter Hegemann
openaire   +1 more source

PDE4D and PDE3B orchestrate distinct cAMP microdomains in 3T3‐L1 adipocytes

British Journal of Pharmacology, EarlyView.
Basal conditions: •Ins/PDE3B lowers cytoplasmic cAMP (cyt‐cAMP) without affecting plasma membrane cAMP (pm‐cAMP). •Insulin decreases lipid droplet cAMP (LD‐cAMP) independent of PDE3B. •FGF1/PDE4D modestly reduces both cyt‐ and pm‐cAMP, while PDE4D alone can modulate LD‐cAMP. ISO stimulation: •Ins/PDE3B has minimal impact on cyt‐cAMP.
Johannes Krier, David Spähn, David Arturo Juarez Lopez, Judith L. Nono, Judith Seigner, Lisa Jacob, Siegfried Ussar, Robert Lukowski, Andreas L. Birkenfeld, Gencer Sancar   +9 more
wiley   +1 more source

Delineation of RAID1, the RACK1 interaction domain located within the unique N-terminal region of the cAMP-specific phosphodiesterase, PDE4D5 [PDF]

, 2002
Background The cyclic AMP specific phosphodiesterase, PDE4D5 interacts with the β-propeller protein RACK1 to form a signaling scaffold complex in cells.
Bolger, G.B., Houslay, M., McCahill, A., Steele, M.R., Warwicker, J., Yarwood, S.   +5 more
core   +3 more sources

Differential segment‐specific signalling pathways for guanylate cyclase C‐activated anion secretion in murine ileocolon

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Guanylate cyclase‐C (GC‐C) is the receptor for endogenous (uro)guanylin peptides, bacterial toxins and pharmacological analogues. Receptor activation leads to intestinal fluid loss, but also activates an antiproliferative pathway and is a promising target in colorectal cancer therapy.
Renjie Xiu, Johannes Reiner, Franz Hofmann, Azam Salari, Ursula Seidler   +4 more
wiley   +1 more source

Targeting Genome Maintenance Defects of Cancers Using Chain‐Terminating Nucleoside Analogs

Cancer Science, EarlyView.
Nucleoside analogs interfere with DNA replication either by their chain‐terminating properties or by serving as DNA damage on the template. The genome maintenance pathways required to maintain cellular tolerance to each nucleoside analog vary depending on the drug.
Ryotaro Kawasumi, Rubaiat E. Tabassum, Kouji Hirota   +2 more
wiley   +1 more source

Regulation of intracellular cyclic GMP concentration by light and calcium in electropermeabilized rod photoreceptors. [PDF]

, 1994
This study examines the regulation of cGMP by illumination and by calcium during signal transduction in vertebrate retinal photoreceptor cells. We employed an electropermeabilized rod outer segment (EP-ROS) preparation which permits perfusion of low ...
Coccia, V J, Cote, Rick H.
core   +2 more sources

ABCD of the phosphodiesterase family: interaction and differential activity in COPD

International Journal of COPD, 2008
David MG HalpinRoyal Devon and Exeter Hospital, Exeter, EX2 5DW, UKAbstract: Phosphodiesterases (PDEs) are important enzymes that hydrolyze the cyclic nucleotides adenosine 3′5′-cyclic monophosphate (cAMP) and guanosine 3′5 ...
David MG Halpin
doaj  

Roles of Cyclic Nucleotide Phosphodiesterases in Signal Transduction Pathways in the Nematode Caenorhabditis elegans

Cells
Cyclic nucleotide signaling pathways play essential roles in the physiology of the nematode Caenorhabditis elegans, influencing processes such as reproduction, environmental sensing, and cellular homeostasis. The intracellular levels of cAMP and cGMP are
Kranti K. Galande, Rick H. Cote
doaj   +1 more source