Results 51 to 60 of about 22,107 (146)

Host Defense Peptide LL-37-Mediated Chemoattractant Properties, but Not Anti-Inflammatory Cytokine IL-1RA Production, Is Selectively Controlled by Cdc42 Rho GTPase via G Protein-Coupled Receptors and JNK Mitogen-Activated Protein Kinase

Frontiers in Immunology, 2018
The human host defense peptide LL-37 promotes immune activation such as induction of chemokine production and recruitment of leukocytes. Conversely, LL-37 also mediates anti-inflammatory responses such as production of anti-inflammatory cytokines, e.g ...
Mahadevappa Hemshekhar, Ka-Yee Grace Choi, Ka-Yee Grace Choi, Neeloffer Mookherjee, Neeloffer Mookherjee   +4 more
doaj   +1 more source

Linking Superoxide Production and Scavenging in Plant Development

Plant, Cell &Environment, Volume 49, Issue 4, Page 2048-2068, April 2026.
ABSTRACT Due to their strong oxidizing potential, rapid membrane permeability, and high reactivity, reactive oxygen species (ROS) play essential roles in plant development and stress responses. Superoxide (O2•‐) is a primary product of molecular oxygen reduction and a crucial source of hydrogen peroxide, representing a ROS species of substantial ...
Jan Řehák, Maryna Tsinyk, Petr Dvořák, Tomáš Takáč   +3 more
wiley   +1 more source

Monoaminylation in Human Health and Disease: State of the Field, Challenges, and Emerging Directions

Advanced Science, Volume 13, Issue 16, 18 March 2026.
This review delineates monoaminylation—serotonylation, dopaminylation, and histaminylation—as key post‐translational modifications beyond receptor signaling. It details their catalytic mechanisms, roles in gene expression and protein function, and implications in health and disease, aiming to bridge mechanistic insights with therapeutic potential ...
Yiqi Zhao, Hongli Zhang, Yating Yang, Wei‐Dong Chen, Yan‐Dong Wang   +4 more
wiley   +1 more source

CDC42‐Effector Proteins Regulate Higher Order Structure of Septins Required for CNS Myelin Integrity

Glia, Volume 74, Issue 3, March 2026.
CDC42‐effector proteins 1/2 are present in CNS myelin. They facilitate the higher order structure of myelin septin filaments. Their loss impairs septin‐dependent scaffolding of myelin. Myelin outfoldings do not cause secondary neuropathology per se. ABSTRACT The regular structure of CNS myelin requires specialized structural proteins, including septin ...
Sophie Hümmert, Joana Paes de Faria, Olaf Jahn, Ege Bilgin, Nikola Łukasik, Chethana Rao, Mišo Mitkovski, Fritz Benseler, Nils Brose, Sophie B. Siems, Sandra Goebbels, Wiebke Möbius, Helge Ewers, João B. Relvas, Hauke B. Werner   +14 more
wiley   +1 more source

Mechanism of ITGB2 in Osteoclast Differentiation in Osteoarthritis

Cell Proliferation, Volume 59, Issue 3, March 2026.
In osteoclast precursors, higher ITGB1 than ITGB2 expression increases ITGA2‐ITGB1 integrin. In OA, extracellular signals upregulate ITGB2 and downregulate ITGB1, enhancing ITGA2‐ITGB2 integrin. This activates Rac1 to Rac‐GTP, driving osteoclast differentiation. Hyperactive subchondral osteoclasts accelerate OA progression.
Yang Yang, Rui Sun, Zhibin Lan, Qi Ma, Gang Wu, Di Xue, Zhirong Chen, Yajing Su, Ye Ma, Xiaolei Chen, Jiangbo Yan, Long Ma, Xiaoxin He, Kuanmin Tian, Xiaoyi Ma, Xue Lin, Qunhua Jin   +16 more
wiley   +1 more source

Rac1-mediated signaling plays a central role in secretion-dependent platelet aggregation in human blood stimulated by atherosclerotic plaque

Journal of Translational Medicine, 2010
Background Platelet activation requires rapid remodeling of the actin cytoskeleton which is regulated by small GTP-binding proteins. By using the Rac1-specific inhibitor NSC23766, we have recently found that Rac1 is a central component of a signaling ...
Khandoga Anna L, Pandey Dharmendra, Dwivedi Suman, Brandl Richard, Siess Wolfgang   +4 more
doaj   +1 more source

Actin dynamics controlled by IqgC, a RasGAP at the crossroads between the IQGAP and fungal GAP1 families

FEBS Open Bio, Volume 16, Issue 2, Page 268-278, February 2026.
IqgC is a RasGAP from Dictyostelium discoideum. IqgC binds RasG via its RasGAP domain and deactivates it on macroendocytic cups, thereby suppressing the uptake of fluid and particles. IqgC has a positive effect on cell‐substratum adhesion, and its RGCt domain is required for recruitment to ventral foci.
Vedrana Filić, Darija Putar, Lucija Mijanović, Igor Weber   +3 more
wiley   +1 more source

Distinct CED-10/Rac1 domains confer context-specific functions in development.

PLoS Genetics, 2018
Rac GTPases act as master switches to coordinate multiple interweaved signaling pathways. A major function for Rac GTPases is to control neurite development by influencing downstream effector molecules and pathways.
Steffen Nørgaard, Shuer Deng, Wei Cao, Roger Pocock   +3 more
doaj   +1 more source

Ventilator‐Induced Lung Injury: Mechanotransduction and Potential Therapeutic Targets

MedComm, Volume 7, Issue 2, February 2026.
Mechanical ventilation (MV) is expected to undergo significant transformative advancements by 2050, with the emergence of personalized ventilation systems that promise to revolutionize respiratory care. However, the risk of ventilator‐induced lung injury (VILI) remains a significant concern at this stage and VILI still exists at that time.
He Ren, Ziqi Shang, Alastair G. Stewart, Ying‐xin Qi, Kai Huang   +4 more
wiley   +1 more source

Bone Metastasis: Molecular Mechanisms, Clinical Management, and Therapeutic Targets

MedComm, Volume 7, Issue 2, February 2026.
This figure emphasizes current understanding of the regulatory networks, approach of diagnose, available preclinical models and clinical management of bone metastasis. to guide future therapeutic development. A deep understanding of these aspects enables the prevention of bone metastasis and the implementation of effective therapeutic strategies ...
Jingyuan Wen, Binghua Li, Shengjia Wang, Yongzhong Yao, Zhao Huang, Decai Yu   +5 more
wiley   +1 more source