Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 211.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\24104765
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Cell+Mol+Life+Sci
2014 ; 71
(11
): 2165-78
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Cilioplasm is a cellular compartment for calcium signaling in response to
mechanical and chemical stimuli
#MMPMID24104765
Jin X
; Mohieldin AM
; Muntean BS
; Green JA
; Shah JV
; Mykytyn K
; Nauli SM
Cell Mol Life Sci
2014[Jun]; 71
(11
): 2165-78
PMID24104765
show ga
Primary cilia with a diameter of ~200 nm have been implicated in development and
disease. Calcium signaling within a primary cilium has never been directly
visualized and has therefore remained a speculation. Fluid-shear stress and
dopamine receptor type-5 (DR5) agonist are among the few stimuli that require
cilia for intracellular calcium signal transduction. However, it is not known if
these stimuli initiate calcium signaling within the cilium or if the calcium
signal originates in the cytoplasm. Using an integrated single-cell imaging
technique, we demonstrate for the first time that calcium signaling triggered by
fluid-shear stress initiates in the primary cilium and can be distinguished from
the subsequent cytosolic calcium response through the ryanodine receptor.
Importantly, this flow-induced calcium signaling depends on the ciliary
polycystin-2 calcium channel. While DR5-specific agonist induces calcium
signaling mainly in the cilioplasm via ciliary CaV1.2, thrombin specifically
induces cytosolic calcium signaling through the IP3 receptor. Furthermore, a
non-specific calcium ionophore triggers both ciliary and cytosolic calcium
responses. We suggest that cilia not only act as sensory organelles but also
function as calcium signaling compartments. Cilium-dependent signaling can spread
to the cytoplasm or be contained within the cilioplasm. Our study thus provides
the first model to understand signaling within the cilioplasm of a living cell.