#1
For clarity here are the comments at Retraction Watch.
Stem Cell Res Ther. 2010 Mar 15;1(1):6. doi: 10.1186/scrt6.
Switching of mesodermal and endodermal properties in hTERT-modified and expanded fetal human pancreatic progenitor cells.
Cheng K1, Follenzi A, Surana M, Fleischer N, Gupta S.
Author information
1Hepatology Division, Department of Medicine, Albert Einstein College of Medicine, Ullmann Bldg, Rm 625, 1300 Morris Park Avenue, Bronx, NY 10461, USA.
This work was supported in part by NIH grants P01 DK52956, P20 GM075037, R01 DK46952, R01 DK071111, P30 DK41296 and P30 CA13330.
Figure 3.
http://www.ncbi.nlm.nih.gov/core/lw/2.0/html/tileshop_pmc/tileshop_pmc_inline.html?title=Click%20on%20image%20to%20zoom&p=PMC3&id=2873697_scrt6-3.jpgFigure 3c.
Right set panels.
TGF-alpha panel. Please compare signal lanes 1 and 3, paying attention to dark spots in the background.
TGF-beta panel. Please compare signal lanes 1 and 3, paying attention to dark spots in the background.
TGF-beta1 panel. Please compare signal lanes 1 and 3.
Please compare TGF-beta2 and TGF-beta1R panels.
TGF-beta2R panel. Please compare signal lanes 1 and 3.
GAPDH panel. Please compare signal lanes 2 and 4, paying attention dark spots below mid-right of bands near floor of panel.
Also, please compare lanes 1 and 3.
Left set panels.
GATA-2 panel. Please compare signal lanes 4,5 and 6.
GATA-6 panel. Please compare signal lanes 1 and 3.
ISL-1 panel. Please compare signal lanes 1 and 4.
Figure 5.
http://www.ncbi.nlm.nih.gov/core/lw/2.0/html/tileshop_pmc/tileshop_pmc_inline.html?title=Click%20on%20image%20to%20zoom&p=PMC3&id=2873697_scrt6-5.jpgFigure 5d.
Glucagon panel. Vertical change background between lanes 1 and 2.
PC1/3 panel. Vertical change background between lanes 3 and 4.
No vertical changes background in Insulin, hPdx1, rPdx1 or GAPDH panels.
Comparison between differentially spliced panels is problematic.