Results 91 to 100 of about 4,814,966 (373)

Kinematics of the most efficient cilium [PDF]

open access: yesPhys. Rev. Lett. 109, 038101 (2012), 2012
In a variety of biological processes, eukaryotic cells use cilia to transport flow. Although cilia have a remarkably conserved internal molecular structure, experimental observations report very diverse kinematics. To address this diversity, we determine numerically the kinematics and energetics of the most efficient cilium.
arxiv   +1 more source

Microtubule‐associated proteins and emerging links to primary cilium structure, assembly, maintenance, and disassembly

open access: yesThe FEBS Journal, 2020
The primary cilium is a microtubule‐based structure that protrudes from the cell surface in diverse eukaryotic organisms. It functions as a key signaling center that decodes a variety of mechanical and chemical stimuli and plays fundamental roles in ...
Deniz Conkar, E. N. Firat-Karalar
semanticscholar   +1 more source

The IDA3 adapter, required for intraflagellar transport of I1 dynein, is regulated by ciliary length [PDF]

open access: yes, 2018
Axonemal dyneins, including inner dynein arm I1, assemble in the cytoplasm prior to transport into cilia by intraflagellar transport (IFT). How I1 dynein interacts with IFT is not understood.
Alford, Lea M   +14 more
core   +2 more sources

Primary cilia elongation in response to interleukin-1 mediates the inflammatory response [PDF]

open access: yes, 2012
Primary cilia are singular, cytoskeletal organelles present in the majority of mammalian cell types where they function as coordinating centres for mechanotransduction, Wnt and hedgehog signalling. The length of the primary cilium is proposed to modulate
A. K. T. Wann   +51 more
core   +2 more sources

New Roles of the Primary Cilium in Autophagy [PDF]

open access: yesBioMed Research International, 2017
The primary cilium is a nonmotile organelle that emanates from the surface of multiple cell types and receives signals from the environment to regulate intracellular signaling pathways. The presence of cilia, as well as their length, is important for proper cell function; shortened, elongated, or absent cilia are associated with pathological conditions.
Yenniffer Ávalos   +4 more
openaire   +3 more sources

Hydrodynamic flow patterns and synchronization of beating cilia [PDF]

open access: yesPhys. Rev. Lett. 96, 058102 (2006), 2005
We calculate the hydrodynamic flow field generated far from a cilium which is attached to a surface and beats periodically. In the case of two beating cilia, hydrodynamic interactions can lead to synchronization of the cilia, which are nonlinear oscillators.
arxiv   +1 more source

Thermodynamic cost of synchronizing a population of beating cilia [PDF]

open access: yesJ. Stat. Mech. (2020) 074001, 2020
Synchronization among arrays of beating cilia is one of the emergent phenomena in biological processes at meso-scopic scales. Strong inter-ciliary couplings modify the natural beating frequencies, $\omega$, of individual cilia to produce a collective motion that moves around a group frequency $\omega_m$.
arxiv   +1 more source

Fluid mechanics of nodal flow due to embryonic primary cilia [PDF]

open access: yes, 2008
Breaking of left–right symmetry is crucial in vertebrate development. The role of cilia-driven flow has been the subject of many recent publications, but the underlying mechanisms remain controversial.
Blake, J R, Gaffney, E. A., Smith, D J
core   +2 more sources

Hook2 is involved in the morphogenesis of the primary cilium

open access: yesMolecular Biology of the Cell, 2011
Primary cilia originate from the centrosome and play essential roles in several cellular, developmental, and pathological processes, but the underlying mechanisms of ciliogenesis are not fully understood. Given the involvement of the adaptor protein Hook2 in centrosomal homeostasis and protein transport to pericentrosomal aggresomes, we explored its ...
Jean-Paul Borg   +11 more
openaire   +6 more sources

The primary cilium directs osteopontin-induced migration of mesenchymal stem cells by regulating CD44 signaling and Cdc42 activation

open access: yesStem Cell Research, 2020
The primary cilium acts as a sensory organelle with diverse receptors and ion channels to detect extracellular cues and regulate cellular functions, including cell migration.
Mi Nam Lee   +7 more
doaj  

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