Results 71 to 80 of about 5,354,149 (260)

Purinergic signaling in scarring

open access: yesThe FASEB Journal, 2015
ABSTRACT Adenosine (ADO) and nucleotides such as ATP, ADP, and uridine 5'‐triphosphate (UTP), among others, may serve as extracellular signaling molecules. These mediators activate specific cell‐surface receptors—namely, purinergic 1 and 2 (P1 and P2)—to modulate crucial pathophysiological responses. Regulation of
FERRARI, Davide   +8 more
openaire   +5 more sources

Astrocyte activation in hindlimb somatosensory cortex contributes to electroacupuncture analgesia in acid-induced pain

open access: yesFrontiers in Neurology
BackgroundSeveral studies have confirmed the direct relationship between extracellular acidification and the occurrence of pain. As an effective pain management approach, the mechanism of electroacupuncture (EA) treatment of acidification-induced pain is
Qing Ye   +10 more
doaj   +1 more source

Sympathetic nerve-derived ATP regulates renal medullary vasa recta diameter via pericyte cells: a role for regulating medullary blood flow? [PDF]

open access: yes, 2013
Pericyte cells are now known to be a novel locus of blood flow control, being able to regulate capillary diameter via their unique morphology and expression of contractile proteins.
Crawford, C.   +4 more
core   +2 more sources

Purinergic signaling in kidney disease [PDF]

open access: yesKidney International, 2017
Nucleotides are key subunits for nucleic acids and provide energy for intracellular metabolism. They can also be released from cells to act physiologically as extracellular messengers or pathologically as danger signals. Extracellular nucleotides stimulate membrane receptors in the P2 and P1 family. P2X are ATP-activated cation channels; P2Y and P1 are
Tam, FWK   +3 more
openaire   +6 more sources

Purinergic modulation of major depressive disorder: Experimental findings, pathogenesis and therapeutic opportunities

open access: yesPharmacological Research
Major depressive disorder (MDD) is a mental illness characterized primarily by persistent low mood and anhedonia. Traditional monoamine antidepressants have not achieved entirely satisfactory clinical efficacy.
Xing-Ying Ren   +4 more
doaj   +1 more source

Regional differences in store-operated Ca2+ entry in the epithelium of the intact human lens [PDF]

open access: yes, 2009
An elevated level of Ca2+ is an important factor in cataract, yet precisely how Ca2+ enters the lens is unknown. Lens epithelial cells contain a range of G-protein–coupled receptors and receptor tyrosine kinases that induce increases in intracellular Ca2+
Duncan, George   +4 more
core   +1 more source

Blocking P2X purinoceptor 4 signalling alleviates cigarette smoke induced pulmonary inflammation

open access: yesRespiratory Research, 2022
Background Chronic obstructive pulmonary disease (COPD) is associated with elevated ATP levels in the extracellular space. Once released, ATP serves as danger signal modulating immune responses by activating purinergic receptors.
Sven Schneider   +3 more
doaj   +1 more source

Dual control of vascular tone and remodelling by ATP released from nerves and endothelial cells [PDF]

open access: yes, 2008
Purinergic signalling is important both in short-term control of vascular tone and in longer-term control of cell proliferation, migration and death involved in vascular remodelling.
Burnstock, G
core  

T Cell Exhaustion in Cancer Immunotherapy: Heterogeneity, Mechanisms, and Therapeutic Opportunities

open access: yesAdvanced Science, EarlyView.
T cell exhaustion limits immunotherapy efficacy. This article delineates its progression from stem‐like to terminally exhausted states, governed by persistent antigen, transcription factors, epigenetics, and metabolism. It maps the exhaustion landscape in the TME and proposes integrated reversal strategies, providing a translational roadmap to overcome
Yang Yu   +7 more
wiley   +1 more source

Immune Checkpoint Inhibitors and Immunomodulators for Cancer Immunotherapy: Insights Into Resistance and Therapeutic Strategies

open access: yesAdvanced Science, EarlyView.
The schematic diagram illustrates the roles of novel immune checkpoints, immunomodulatory factors, cell death and multimodal technologies in cancer immunotherapy. Abstract Cancer immunotherapy has redefined cancer treatment. However, the molecular and cellular basis of immune evasion and therapeutic resistance remains incompletely understood.
Fangquan Chen   +7 more
wiley   +1 more source

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