Results 51 to 60 of about 26,413 (231)

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

Advanced 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, Xiaoyu Yao, Qingyang Wang, Mengrui Yang, Runze Li, Jiangjiang Qin, Jing Zhuang, Changgang Sun   +7 more
wiley   +1 more source

Purinergic and Calcium Signaling in Macrophage Function and Plasticity

Frontiers in Immunology, 2014
In addition to a fundamental role in cellular bioenergetics, the purine nucleotide adenosine triphosphate (ATP) plays a crucial role in the extracellular space as a signaling molecule.
Bimal N Desai, Norbert eLeitinger
doaj   +1 more source

Polydatin alleviates mitochondrial damage and apoptosis of lung epithelial cells by inhibiting toll‐like receptor 4‐dependent macrophage activation in asthma

Animal Models and Experimental Medicine, EarlyView.
The alleviation of asthma by polydatin is dependent on the blockage of the toll‐like receptor 4 (TLR4)/P2X7R synergy in macrophages. The blockage of the TLR4/P2X7R synergy results in decreased release and secretion of interleukin‐1β (IL‐1β) and IL‐18. In epithelial cells, low IL‐1β and IL‐18 levels inhibit mitochondrial damage and apoptosis.
Guangxing Li, Ruobai Liu, Chang Xu, Jianing Yang, Yilan Song, Li Li, Jingzhi Jiang, Liangchang Li, Chongyang Wang, Guanghai Yan   +9 more
wiley   +1 more source

Purinergic signaling systems across comparative models of spinal cord injury

Neural Regeneration Research, 2022
Within the last several decades, the scientific community has made substantial progress in elucidating the complex pathophysiology underlying spinal cord injury.
Eva E Stefanova, Angela L Scott
doaj   +1 more source

Endogenous Repair in Vanishing White Matter

Annals of Neurology, EarlyView.
Objective Vanishing white matter is a leukodystrophy with remarkable regional variation in disease severity. The cerebral and cerebellar white matter chronically degenerates, while stress‐induced episodes of rapid neurological deterioration coincide with the appearance of acute focal lesions in the deep gray structures and brainstem.
Bonnie C. Plug, Jodie H.K. Man, Marjolein Breur, Erik Nutma, Menno D. Stellingwerff, Truus E.M. Abbink, Marianna Bugiani, Marjo S. van der Knaap   +7 more
wiley   +1 more source

Purinergic signaling in hepatic disease [PDF]

Purinergic Signalling, 2019
Extracellular purines (ATP and adenosine) are ubiquitous intercellular messengers. During tissular damage, they function as damage-associated molecular patterns (DAMPs). In this context, purines announce tissue alterations to initiate a reparative response that involve the formation of the inflammasome complex and the recruitment of specialized cells ...
E. Velázquez-Miranda, M. Díaz-Muñoz, F. G. Vázquez-Cuevas   +2 more
openaire   +2 more sources

Purinergic signaling: A gatekeeper of blood-brain barrier permeation

Frontiers in Pharmacology, 2023
This review outlined evidence that purinergic signaling is involved in the modulation of blood-brain barrier (BBB) permeability. The functional and structural integrity of the BBB is critical for maintaining the homeostasis of the brain microenvironment.
Yuemei Wang, Yuanbing Zhu, Junmeng Wang, Longcong Dong, Shuqing Liu, Sihui Li, Qiaofeng Wu   +6 more
doaj   +1 more source

Prothrombotic Activation of Platelet Pannexin 1 Channels in Antiphospholipid Syndrome

Arthritis &Rheumatology, Accepted Article.
Background ATP is released from platelets through both degranulation and pannexin‐1 (PANX1) channels. ATP then activates P2X receptors to amplify platelet activation via calcium‐dependent signaling. Objective To evaluate the role of platelet PANX1 channels in the pathophysiology of antiphospholipid syndrome (APS), an acquired thrombo‐inflammatory ...
Bruna de Moraes Mazetto Fonseca, Somanathapura K. NaveenKumar, Srilakshmi Yalavarthi, Kavya Sugur, Thalia G. Newman, Claire K. Hoy, Cyrus Sarosh, Jordan K. Schaefer, Ajay Tambralli, Jacqueline A. Madison, Yu Zuo, Fernanda Orsi, Michael Holinstat, Jason S. Knight   +13 more
wiley   +1 more source

Purinergic signalling in osteoblasts

Frontiers in Bioscience, 2012
The skeleton is maintained throughout life via the finely tuned actions of osteoblasts and osteoclasts, with disruption in this balance eventually leading to bone disease. The exact mechanisms balancing these actions are not fully known, although several regulatory systems are known to be involved.
Gartland, Alison, Orriss, Isabel R., Rumney, Robin M.H., Bond, Alistair P., Arnett, Timothy, Gallagher, James A.   +5 more
openaire   +3 more sources

Role of Nucleotide P2 Receptors in the Immune System: Focus on Effector T Cells

Cells
The emergence of purinergic signaling has given ATP and other extracellular nucleotides a whole new perspective. This concept refers to the fact that extracellular nucleotides released by most cells act as signaling molecules via specific membrane ...
Romuald Brice Babou Kammoe, Chakib Hamoudi, Fawzi Aoudjit   +2 more
doaj   +1 more source