نتایج جستجو برای: p2x7r

تعداد نتایج: 281  

2016
Carlos de Torre-Minguela Maria Barberà-Cremades Ana I. Gómez Fátima Martín-Sánchez Pablo Pelegrín

The activation of P2X7 receptor (P2X7R) on M1 polarized macrophages induces the assembly of the NLRP3 inflammasome leading to the release of pro-inflammatory cytokines and the establishment of the inflammatory response. However, P2X7R signaling to the NLRP3 inflammasome is uncoupled on M2 macrophages without changes on receptor activation. In this study, we analyzed P2X7R secretome in wild-type...

Journal: :Italian Journal of Food Science 2023

P2X7 receptor (P2X7R) inhibition is critical for reducing the overactivation of its downstream signaling pathway in autoimmune diseases. Phytochemicals are a source medicinal compounds various diseases and contribute to development effective safe P2X7R-targeted drugs. This review aimed at identifying screening novel safe, effective, economically feasible inhibitors P2X7R from phytochemicals ext...

2016
Erica Salaro Alessia Rambaldi Simonetta Falzoni Francesca Saveria Amoroso Alessia Franceschini Alba Clara Sarti Massimo Bonora Francesco Cavazzini Gian Matteo Rigolin Maria Ciccone Valentina Audrito Silvia Deaglio Pablo Pelegrin Paolo Pinton Antonio Cuneo Francesco Di Virgilio

Lymphocyte growth and differentiation are modulated by extracellular nucleotides and P2 receptors. We previously showed that the P2X7 receptor (P2X7R or P2RX7) is overexpressed in circulating lymphocytes from chronic lymphocytic leukemia (CLL) patients. In the present study we investigated the P2X7R/NLRP3 inflammasome axis in lymphocytes from a cohort of 23 CLL patients. P2X7R, ASC and NLRP3 we...

2016
Mausita Karmakar Michael A Katsnelson George R Dubyak Eric Pearlman

Although extracellular ATP is abundant at sites of inflammation, its role in activating inflammasome signalling in neutrophils is not well characterized. In the current study, we demonstrate that human and murine neutrophils express functional cell-surface P2X7R, which leads to ATP-induced loss of intracellular K(+), NLRP3 inflammasome activation and IL-1β secretion. ATP-induced P2X7R activatio...

2015
KUANG PENG LUSHAN LIU DANGHENG WEI YUNCHENG LV GANG WANG WENHAO XIONG XIAOQING WANG AFRASYAB ALTAF LILI WANG DAN HE HONGYAN WANG PENG QU

Purinergic 2X7 receptor (P2X7R) and nucleotide‑binding oligomerization domain-like receptor protein 3 (NLRP3) are expressed in macrophages in atherosclerotic lesions. However, the mechanisms through which P2X7R participates in the inflammatory response in atherosclerosis remain largely unknown. The aim of the present study was to investigate the role of P2X7R in atherosclerosis and the mechanis...

2018
Francesco Di Virgilio Anna L. Giuliani Valentina Vultaggio-Poma Simonetta Falzoni Alba C. Sarti

The P2X7 receptor (P2X7R) is a ligand-gated plasma membrane ion channel belonging to the P2X receptor subfamily activated by extracellular nucleotides. General consensus holds that the physiological (and maybe the only) agonist is ATP. However, scattered evidence generated over the last several years suggests that ATP might not be the only agonist, especially at inflammatory sites. Solid data s...

2016
Jin - Hui Tao Jiang - Ping Tang Mei - Yun Wang Hai - Feng Pan Xue Leng Yan - Feng Zou Dong - Qing Ye Xiang - Pei Li

Objective: To investigate P2X purinoceptor 7 (P2X7R) expression changes on peripheral blood mononuclear cell (PBMC) surfaces of systemic lupus erythematosus (SLE) patients as well as their association with serum cytokine levels and patients’ clinical features. In addition, the effects of different P2X7R single nucleotide polymorphisms (SNPs) on P2X7R expression and cytokine production were inve...

Journal: :Journal of molecular endocrinology 2015
Ankita Agrawal Alison Gartland

The role of the P2X7 receptor (P2X7R) is being explored with intensive interest in the context of normal bone physiology, bone-related diseases and, to an extent, bone cancer. In this review, we cover the current understanding of P2X7R regulation of bone cell formation, function and survival. We will discuss how the P2X7R drives lineage commitment of undifferentiated bone cell progenitors, the ...

Journal: :Circulation 2013
Andrea Vergani Sara Tezza Francesca D'Addio Carmen Fotino Kaifeng Liu Monika Niewczas Roberto Bassi R Damaris Molano Sonja Kleffel Alessandra Petrelli Antonio Soleti Enrico Ammirati Maria Frigerio Gary Visner Fabio Grassi Maria E Ferrero Domenico Corradi Reza Abdi Camillo Ricordi Mohamed H Sayegh Antonello Pileggi Paolo Fiorina

BACKGROUND Heart transplantation is a lifesaving procedure for patients with end-stage heart failure. Despite much effort and advances in the field, current immunosuppressive regimens are still associated with poor long-term cardiac allograft outcomes, and with the development of complications, including infections and malignancies, as well. The development of a novel, short-term, and effective...

Journal: :Molecular pharmacology 2007
Mark T Young Pablo Pelegrin Annmarie Surprenant

Agonist properties of the P2X7 receptor (P2X7R) differ strikingly from other P2X receptors in two main ways: high concentrations of ATP (> 100 microM) are required to activate the receptor, and the ATP analog 2',3'-O-(4-benzoyl-benzoyl)ATP (BzATP) is both more potent than ATP and evokes a higher maximum current. However, there are striking species differences in these properties. We sought to e...

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