Results 101 to 110 of about 130,287 (295)

Inhibitors of second messenger pathways and Ca2+-induced exposure of phosphatidylserine in red blood cells of patients with sickle cell disease [PDF]

open access: yes, 2013
The present work investigates the contribution of various second messenger systems to Ca2+-induced phosphatidylserine (PS) exposure in red blood cells (RBCs) from sickle cell disease (SCD) patients.
O. T. Gbotosho   +12 more
core   +1 more source

S100A14 in Tumor‐Derived EVs Targets PIAS3 to Reprogram Astrocytes and Induce Immunosuppressive Microenvironment Promoting Brain Metastasis and Germacrone Reversal Effect

open access: yesAdvanced Science, EarlyView.
This study identifies S100A14 in tumor‐derived exosomes as a key driver of brain metastasis. S100A14 targets PIAS3 in astrocytes, activating STAT3 signaling and promoting immunosuppressive MDSCs recruitment via chemokine secretion. Germacrone, a natural compound, binds S100A14 to disrupt this axis, effectively inhibiting brain metastasis with low ...
Qian Feng   +13 more
wiley   +1 more source

CXCL12 chemokine and GABA neurotransmitter systems crosstalk and their putative roles

open access: yesFrontiers in Cellular Neuroscience, 2014
Since CXCL12 and its receptors, CXCR4 and CXCR7, have been found in the brain, the role of this chemokine has been expanded from chemoattractant in the immune system to neuromodulatory in the brain.
Guyon eAlice
doaj   +1 more source

The role of the VirB/VirD4/Bep system in "Bartonella henselae"-triggered vascular proliferation [PDF]

open access: yes, 2009
Bartonella henselae (Bh) rarely shows any symptoms in its feline reservoir host but is responsible for a number of clinical outcomes during infection of the human incidental host. Bh shares with B. quintana (Bq) and B.
Scheidegger, Florine
core   +1 more source

Amuc_1473 Links Gut Microbes to Skeletal Homeostasis and Counteracts Multifactorial Osteoporosis

open access: yesAdvanced Science, EarlyView.
Amuc_1473, a previously uncharacterized protein enriched in Akkermansia muciniphila‐derived extracellular vesicles, is identified as a gut–bone messenger that promotes osteogenesis and inhibits osteoclastogenesis by engaging transcriptional and translational regulators in bone cells.
Shan‐Shan Rao   +28 more
wiley   +1 more source

Phosphoinositide second messenger system is enriched in striosomes: immunohistochemical demonstration of inositol 1,4,5-trisphosphate receptors and phospholipase C beta and gamma in primate basal ganglia

open access: yes, 1993
The neurochemical organization of the basal ganglia has been studied extensively with respect to neurotransmitters, neuropeptides, and their receptors. The chemoarchitecture of the striatum has been found particularly striking, because it distinguishes ...
TM Dawson   +5 more
core   +1 more source

TME/NIR Dual‐Responsive Zinc‐Based Targeted Nanoagonist for Multimodal Amplification of STING‐Mediated Cancer Immunotherapy

open access: yesAdvanced Science, EarlyView.
A multifunctional nanoagonist (cDZ@IP) enables nano‐metabolite–driven multimodal activation of the STING pathway and enhanced immune recognition, achieving potent antitumor immunity and suppressing tumor growth and metastasis. This strategy highlights the rational design of therapeutic metabolites and establishes a new paradigm bridging nanomedicine ...
Kepeng Hu   +17 more
wiley   +1 more source

Cyclic Diguanylate Signaling Proteins Control Intracellular Growth of Legionella pneumophila

open access: yesmBio, 2011
Proteins that metabolize or bind the nucleotide second messenger cyclic diguanylate regulate a wide variety of important processes in bacteria. These processes include motility, biofilm formation, cell division, differentiation, and virulence.
Assaf Levi   +3 more
doaj   +1 more source

MEOX1 Coordinates Autocrine‐Paracrine Programs via SPHK1/S1P to Promote Lymph Node Metastasis in Ovarian Cancer

open access: yesAdvanced Science, EarlyView.
In ovarian cancer, MEOX1 activates the SPHK1/S1P pathway to promote both tumor progression and tumor–stroma crosstalk. MEOX1‐dependent signaling drives CAF activation, enhances VEGF‐C expression, and stimulates lymphangiogenesis, ultimately facilitating lymph node metastasis.
Jiajia Li   +10 more
wiley   +1 more source

Interaction between Calcium and Actin in Guard Cell and Pollen Signaling Networks

open access: yesPlants, 2013
Calcium (Ca2+) plays important roles in plant growth, development, and signal transduction. It is a vital nutrient for plant physical design, such as cell wall and membrane, and also serves as a counter-cation for biochemical, inorganic, and organic ...
Dong-Hua Chen   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy