Results 21 to 30 of about 1,506,122 (305)
Abstract Key message Pollen tubes from closely related species and mutants lacking pollen tube MYB transcription factors are able to initiate FER/LRE-dependent synergid cell calcium oscillations. Abstract Reproductive isolation leads to the evolution of new species; however,
Nathaniel Ponvert, Mark A. Johnson
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Chemotaxis, regulated by oscillatory signals, drives critical processes in cancer metastasis. Crucial chemoattractant molecules in breast cancer, CXCL12 and EGF, drive the activation of ERK and Akt.
Kenneth K. Y. Ho +5 more
doaj +1 more source
Purinergic signalling is required for calcium oscillations in migratory chondrogenic progenitor cells [PDF]
Osteoarthritis (OA) is the most common form of chronic musculoskeletal disorders. A migratory stem cell population termed chondrogenic progenitor cells (CPC) with in vitro chondrogenic potential was previously isolated from OA cartilage. Since intracellular Ca(2+) signalling is an important regulator of chondrogenesis, we aimed to provide a detailed ...
Matta, C +8 more
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Notch signaling controls proliferation of multipotent pancreatic progenitor cells (MPCs) and their segregation into bipotent progenitors (BPs) and unipotent pro-acinar cells (PACs).
Philip A. Seymour +9 more
semanticscholar +1 more source
Computational modeling of the interplay between cadherin-mediated cell adhesion and Wnt signaling pathway. [PDF]
Wnt signaling and cadherin-mediated adhesion have been implicated in both processes of embryonic development and the progression of carcinomas. Recent experimental studies revealed that Wnt signaling and cadherin-mediated cell adhesion have close ...
Jiawen Chen, Zhong-Ru Xie, Yinghao Wu
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Visualization of Notch Signaling Oscillation in Cells and Tissues [PDF]
The Notch signaling effectors Hes1 and Hes7 exhibit oscillatory expression with a period of about 2-3 h during embryogenesis. Hes1 oscillation is important for proliferation and differentiation of neural stem cells, whereas Hes7 oscillation regulates periodic formation of somites.
Shimojo, Hiromi +2 more
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An excitable signal integrator couples to an idling cytoskeletal oscillator to drive cell migration [PDF]
It is generally believed that cytoskeletal activities drive random cell migration, whereas signal transduction events initiated by receptors regulate the cytoskeleton to guide cells. However, we find that the cytoskeletal network, involving SCAR/WAVE, Arp 2/3 and actin-binding proteins, is capable of generating only rapid oscillations and undulations ...
Chuan-Hsiang Huang +4 more
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Adrenergic regulation of immune cell function and inflammation
The sympathetic nervous system integrates the functions of multiple organ systems by regulating their autonomic physiological activities. The immune system is regulated both locally and systemically by the neurotransmitters epinephrine and norepinephrine
D. Sharma, J. Farrar
semanticscholar +1 more source
Synchronization of oscillatory growth prepares fungal hyphae for fusion
Communication is crucial for organismic interactions, from bacteria, to fungi, to humans. Humans may use the visual sense to monitor the environment before starting acoustic interactions.
Valentin Wernet +5 more
doaj +1 more source
Heat Oscillations Driven by the Embryonic Cell Cycle Reveal the Energetic Costs of Signaling [PDF]
All living systems function out of equilibrium and exchange energy in the form of heat with their environment. Thus, heat flow can inform on the energetic costs of cellular processes, which are largely unknown. Here, we have repurposed an isothermal calorimeter to measure heat flow between developing zebrafish embryos and the surrounding medium.
Jonathan, Rodenfels +2 more
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