نتایج جستجو برای: primary cilium
تعداد نتایج: 643196 فیلتر نتایج به سال:
Ciliopathies are a group of diseases that affect kidney and retina among other organs. Here, we identify a missense mutation in PIK3R4 (phosphoinositide 3-kinase regulatory subunit 4, named VPS15) in a family with a ciliopathy phenotype. Besides being required for trafficking and autophagy, we show that VPS15 regulates primary cilium length in human fibroblasts, as well as ciliary processes in ...
The primary cilium is a microtubule-based nonmotile organelle that extends from the surface of cells, including renal tubular cells. Here, we investigated the alteration of primary cilium length during epithelial cell injury and repair, following ischemia/reperfusion (I/R) insult, and the role of reactive oxygen species in this alteration. Thirty minutes of bilateral renal ischemia induced seve...
Adipose-derived stem cells (ASC) are multipotent stem cells that show great potential as a cell source for osteogenic tissue replacements and it is critical to understand the underlying mechanisms of lineage specification. Here we explore the role of primary cilia in human ASC (hASC) differentiation. This study focuses on the chemosensitivity of the primary cilium and the action of its associat...
Cilia are evolutionarily highly conserved organelles with important functions in many organs. The extracellular component of the cilium protruding from plasma membrane comprises an axoneme composed microtubule doublets, arranged a 9 + 0 conformation primary cilia or 2 motile cilia. These microtubules facilitate transport intraflagellar cargoes along axoneme. They also provide structural stabili...
Cell motility and migration play pivotal roles in numerous physiological and pathophysiological processes including development and tissue repair. Cell migration is regulated through external stimuli such as platelet-derived growth factor-AA (PDGF-AA), a key regulator in directional cell migration during embryonic development and a chemoattractant during postnatal migratory responses including ...
The small GTPase Rab23 is an antagonist of sonic hedgehog (Shh) signaling during mouse development. Given that modulation of Shh signaling depends on the normal functioning of the primary cilium, and overexpression of Evi5L, a putative Rab23 GTPase-activating protein (GAP), leads to reduced ciliogenesis, Rab23 could have a role at the primary cilium. Here, we found that wild-type Rab23 and the ...
Mutations at a single locus, PKHD1, are responsible for causing human autosomal recessive polycystic kidney disease (ARPKD). Recent studies suggest that the cystic disease might result from defects in planar cell polarity, but how the 4074 amino acid ciliary protein encoded by the longest open reading frame of this transcriptionally complex gene may regulate this process is unknown. Using novel...
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