Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 233.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 267.2 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\27624103
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Am+J+Physiol+Endocrinol+Metab
2016 ; 311
(5
): E859-E868
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Development of a reliable automated screening system to identify small molecules
and biologics that promote human ?-cell regeneration
#MMPMID27624103
Aamodt KI
; Aramandla R
; Brown JJ
; Fiaschi-Taesch N
; Wang P
; Stewart AF
; Brissova M
; Powers AC
Am J Physiol Endocrinol Metab
2016[Nov]; 311
(5
): E859-E868
PMID27624103
show ga
Numerous compounds stimulate rodent ?-cell proliferation; however, translating
these findings to human ?-cells remains a challenge. To examine human ?-cell
proliferation in response to such compounds, we developed a medium-throughput in
vitro method of quantifying adult human ?-cell proliferation markers. This method
is based on high-content imaging of dispersed islet cells seeded in 384-well
plates and automated cell counting that identifies fluorescently labeled ?-cells
with high specificity using both nuclear and cytoplasmic markers. ?-Cells from
each donor were assessed for their function and ability to enter the cell cycle
by cotransduction with adenoviruses encoding cell cycle regulators cdk6 and
cyclin D3. Using this approach, we tested 12 previously identified mitogens,
including neurotransmitters, hormones, growth factors, and molecules, involved in
adenosine and Tgf-1? signaling. Each compound was tested in a wide concentration
range either in the presence of basal (5 mM) or high (11 mM) glucose. Treatment
with the control compound harmine, a Dyrk1a inhibitor, led to a significant
increase in Ki-67(+) ?-cells, whereas treatment with other compounds had limited
to no effect on human ?-cell proliferation. This new scalable approach reduces
the time and effort required for sensitive and specific evaluation of human
?-cell proliferation, thus allowing for increased testing of candidate human
?-cell mitogens.