Warning: file_get_contents(https://eutils.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&id=26813041
&cmd=llinks): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 215
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 213.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 247.2 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\26813041
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Dev+Dyn
2016 ; 245
(4
): 483-96
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Mosaic analysis of cell rearrangements during ureteric bud branching in
dissociated/reaggregated kidney cultures and in vivo
#MMPMID26813041
Leclerc K
; Costantini F
Dev Dyn
2016[Apr]; 245
(4
): 483-96
PMID26813041
show ga
BACKGROUND: Cell rearrangements mediated by GDNF/Ret signaling underlie the
formation of the ureteric bud (UB) tip domain during kidney development. Whether
FGF signaling also influences these rearrangements is unknown. Chimeric embryos
are a powerful tool for examining the genetic controls of cellular behaviors, but
generating chimeras by traditional methods is expensive and laborious.
Dissociated fetal kidney cells can reorganize to form complex structures
including branching UB tubules, providing an easier method to generate renal
chimeras. RESULTS: Cell behaviors in normal or chimeric kidney cultures were
investigated using time-lapse imaging. In Spry1(-/-) ? wild-type chimeras, cells
lacking Spry1 (a negative regulator of Ret and FGF receptor signaling)
preferentially occupied the UB tips, as previously observed in traditional
chimeras, thus validating this experimental system. In Fgfr2(UB-/-) ? wild-type
chimeras, the wild-type cells preferentially occupied the tips. Independent
evidence for a role of Fgfr2 in UB tip formation was obtained using Mosaic mutant
Analysis with Spatial and Temporal control of Recombination (MASTR). CONCLUSIONS:
Dissociation and reaggregation of fetal kidney cells of different genotypes, with
suitable fluorescent markers, provides an efficient way to analyze cell behaviors
in chimeric cultures. FGF/Fgfr2 signaling promotes UB cell rearrangements that
form the tip domain, similarly to GDNF/Ret signaling.