Guidance on Placement of Integrated Effectiveness and Safety Summaries; Advice from FDA on Presenting Risk Information; More Warnings for Erlotinib; Sanofi-Aventis Said to Overstate Efficacy of Docetaxel; Possible Dosage Alterations for Rituximab; FDA Establishes Transparency Task Force; Unauthorized Clinical Trials Alleged; FDA Should Release Information on Unapproved Uses; Pegylated Anti-TNF Product Closer to European Approval; Viral Contaminant Reducing Supplies of Replacement Enzymes; First Follow-On Biologic Approved in Japan; More Human Embryonic Stem Cell Lines May Be Approved for Research; All Genetic Tests and Performance Data Should Be Registered; Early Development of Biologics to Gain New Regulatory Body in India; Rapid Test for C. diff. Approved; Label Changes for Immunosuppressives Reflect Concern About Kidney Virus

2009 ◽  
Vol 28 (4) ◽  
pp. 503-507
2020 ◽  
Vol 47 ◽  
pp. 101885
Author(s):  
Yongli Shan ◽  
Lishi Ma ◽  
Cong Zhang ◽  
Yanqi Zhang ◽  
Jingyuan Zhang ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Dominika Dziedzicka ◽  
Mukul Tewary ◽  
Alexander Keller ◽  
Laurentijn Tilleman ◽  
Laura Prochazka ◽  
...  

AbstractLow differentiation propensity towards a targeted lineage can significantly hamper the utility of individual human pluripotent stem cell (hPSC) lines in biomedical applications. Here, we use monolayer and micropatterned cell cultures, as well as transcriptomic profiling, to investigate how variability in signalling pathway activity between human embryonic stem cell lines affects their differentiation efficiency towards definitive endoderm (DE). We show that endogenous suppression of WNT signalling in hPSCs at the onset of differentiation prevents the switch from self-renewal to DE specification. Gene expression profiling reveals that this inefficient switch is reflected in NANOG expression dynamics. Importantly, we demonstrate that higher WNT stimulation or inhibition of the PI3K/AKT signalling can overcome the DE commitment blockage. Our findings highlight that redirection of the activity of Activin/NODAL pathway by WNT signalling towards mediating DE fate specification is a vulnerable spot, as disruption of this process can result in poor hPSC specification towards DE.


2010 ◽  
Vol 46 (3-4) ◽  
pp. 367-375 ◽  
Author(s):  
Helen Priddle ◽  
Cinzia Allegrucci ◽  
Paul Burridge ◽  
Maria Munoz ◽  
Nigel M. Smith ◽  
...  

2005 ◽  
Vol 10 ◽  
pp. 29
Author(s):  
Y Verlinsky ◽  
V Kukharenko ◽  
N Strelchenko ◽  
S Rechitsky ◽  
N Ilkevitch ◽  
...  

2010 ◽  
Vol 4 (1) ◽  
pp. 1-13
Author(s):  
T. A. Krylova ◽  
A. M. Kol’tsova ◽  
V. V. Zenin ◽  
O. F. Gordeeva ◽  
A. S. Musorina ◽  
...  

2006 ◽  
Vol 13 (4) ◽  
pp. 547-550 ◽  
Author(s):  
Y Verlinsky ◽  
N Strelchenko ◽  
V Kukharenko ◽  
A Shkumatov ◽  
S Rechitsky ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document