Results 111 to 120 of about 142,523 (351)

GPCR heterodimerization in the reproductive system: functional regulation and implication for biodiversity

Frontiers in Endocrinology, 2013
A G protein-coupled receptor (GPCR) functions not only as a monomer or homodimer but also as a heterodimer with another GPCR. GPCR heterodimerization results in the modulation of the molecular functions of the GPCR protomer, including ligand binding ...
Honoo eSatake, Shin eMatsubara, Masato eAoyama, Tsuyoshi eKawada, Tsubasa eSakai   +4 more
doaj   +1 more source

Threonine 180 Is Required for G-protein-coupled Receptor Kinase 3- and β-Arrestin 2-mediated Desensitization of the µ-Opioid Receptor in Xenopus Oocytes [PDF]

, 2001
To determine the sites in the µ-opioid receptor (MOR) critical for agonist-dependent desensitization, we constructed and coexpressed MORs lacking potential phosphorylation sites along with G-protein activated inwardly rectifying potassium channels ...
Celvert, Jeremy P., Chavkin, Charles, Gurevich, Vsevolod V., Kovoor, Abraham, Lowe, Janet   +4 more
core  

KLK1 as an Epithelial‐Specific Brake Inhibits Colorectal Tumorigenesis by Suppressing B1R‐Mediated Fibroblast Phenotypic Transition

Advanced Science, EarlyView.
KLK1 downregulation disrupts the intestinal mucosal barrier and impairs kallikrein‐kinin signaling, thereby reducing Lys‐des‐Arg9‐BK production. This enhances B1R activation on ADAMDEC1⁺ fibroblasts, promoting inflammation and extracellular matrix (ECM) remodeling. The resulting iCAFs promote colorectal cancer progression, highlighting a novel KLK1‐B1R
Lisha Zhou, Meijing Wang, Shunji Liu, Limei Gu, Shijia Liu, Qianming Du, Tianyi Zhang, Yinuo Ma, Lixin Zhao, Jiaming Wang, Qiang Xu, Tingsheng Ling, Haibo Cheng, Hongqi Chen, Yang Sun   +14 more
wiley   +1 more source

GPCR-specific autoantibody signatures are associated with physiological and pathological immune homeostasis

Nature Communications, 2018
Autoantibodies have been associated with autoimmune diseases. However, studies have identified autoantibodies in healthy donors (HD) who do not develop autoimmune disorders.
O. Cabral-Marques, A. Marques, L. Giil, R. De Vito, J. Rademacher, J. Günther, T. Lange, J. Humrich, S. Klapa, S. Schinke, L. Schimke, Gabriele Marschner, S. Pitann, S. Adler, R. Dechend, D. Müller, I. Braicu, J. Sehouli, K. Schulze-Forster, T. Trippel, C. Scheibenbogen, A. Staff, P. Mertens, Madlen Löbel, Justin Mastroianni, C. Plattfaut, F. Gieseler, D. Dragun, B. Engelhardt, M. Fernandez-Cabezudo, H. Ochs, B. al-Ramadi, P. Lamprecht, A. Mueller, H. Heidecke, G. Riemekasten   +35 more
semanticscholar   +1 more source

Type 2 Diabetes‐Associated Phenylacetylglutamine Induces Deleterious Inflammation Cycle in Myeloid Cells through β2 Adrenergic Receptors and Impedes Wound Healing

Advanced Science, EarlyView.
The microbiota‐derived metabolite phenylacetylglutamine (PAGln) is elevated in type 2 diabetes and tightly associated with poor healing in both diabetic and non‐diabetic human patients. PAGln promotes mouse inflammation and impairs healing through a transmissible β2‐adrenergic receptor–mediated trained‐immunity loop.
Lu Huang, Xinran Ye, Chia‐Kang Ho, Ya Gao, Dongsheng Wen, Jiaming Sun, Yuxin Liu, Yangdan Liu, Guoyuan Wang, Yangbai Sun, Jinyan Zhang, Yifan Zhang, Qingfeng Li   +12 more
wiley   +1 more source

Regulation of CXCR4 function by S1P1 through heteromerization

Cell Communication and Signaling
Background The trafficking of immune cells between lymphoid organs and circulation depends on gradients of CXCL12 and sphingosine-1-phosphate (S1P), mediated through their cognate receptors C-X-C chemokine receptor type 4 (CXCR4) and S1P receptor type 1 (
Hyun-Tae Kim, Jae-Yeon Jeong, Won-Ki Huh
doaj   +1 more source

A receptor-based analysis of local ecosystems in the human brain. [PDF]

, 2017
BackgroundAs a complex system, the brain is a self-organizing entity that depends on local interactions among cells. Its regions (anatomically defined nuclei and areas) can be conceptualized as cellular ecosystems, but the similarity of their functional ...
Janušonis, Skirmantas
core   +1 more source

Switchbody, an Antigen‐Responsive Enzyme Switch Based on Antibody and Its Working Principle

Advanced Science, EarlyView.
This paper presents an antibody‐based enzyme switch, termed a “Switchbody”, which is fused with an enzyme‐derived fragment to the N‐terminus of an antibody. As its working principle, the fused fragment is trapped within the antibody and released upon antigen binding, leading to enzyme reconstitution and a subsequent increase in enzyme activity.
Takanobu Yasuda, Yoshiyuki Ueno, Masahiko Taguchi, Naoya Tochio, Hiromasa Yagi, Shuma Yazaki, Ryoichi Arai, Bo Zhu, Takanori Kigawa, Hiroshi Ueda, Tetsuya Kitaguchi   +10 more
wiley   +1 more source

Signal Transduction and Pathogenic Modifications at the Melanocortin-4 Receptor: A Structural Perspective [PDF]

, 2019
The melanocortin-4 receptor (MC4R) can be endogenously activated by binding of melanocyte-stimulating hormones (MSH), which mediates anorexigenic effects. In contrast, the agouti-related peptide (AgRP) acts as an endogenous inverse agonist and suppresses
Biebermann, Heike, Cerdá-Reverter, José Miguel, Heyder, Nicolas, Kleinau, Gunnar, Krude, Heiko, Kwiatkowski, Dennis, Kühnen, Peter, Scheerer, Patrick, Soletto, Lucia, Speck, David, Szczepek, Michal   +10 more
core   +1 more source

Deficiency of Leucine‐Rich Repeat Containing G Protein‐Coupled Receptor 4 in Pancreas Reduces β Cell Mass

Advanced Science, EarlyView.
In islet β cells, LGR4 binds with Rspondin to activate the Wnt‐β‐catenin‐Ccnd1 axis, leading to a subsequent increase in cell proliferation. On the other hand, LGR4 also binds with RANKL, thus suppressing the phosphorylation of p44/p42 MAPK and p65 NF‐κB and subsequent cell apoptosis.
Chao Luo, Yifan Feng, Jiajie Min, Yan Zhao, Ziming Zhu, Lijun Sun, Hao Yin, Yue Yin, Weizhen Zhang   +8 more
wiley   +1 more source