scholarly journals Development of an inexpensive Raman-compatible substrate for the construction of a microarray screening platform

The Analyst ◽  
2020 ◽  
Vol 145 (21) ◽  
pp. 7030-7039
Author(s):  
Isamar Pastrana-Otero ◽  
Sayani Majumdar ◽  
Aidan E. Gilchrist ◽  
Brittney L. Gorman ◽  
Brendan A. C. Harley ◽  
...  

Development of an inexpensive substrate that is compatible with the chemistries used to fabricate biomaterial microarrays for tissue engineering applications and noninvasive single-cell Raman spectroscopy for identifying stem cell fate decisions.

FEBS Letters ◽  
2017 ◽  
Vol 591 (15) ◽  
pp. 2195-2212 ◽  
Author(s):  
Ilaria Lunger ◽  
Malak Fawaz ◽  
Michael A. Rieger

2019 ◽  
Vol 7 (8) ◽  
pp. 3471-3479
Author(s):  
Laura Kolb ◽  
Simone Allazetta ◽  
Maria Karlsson ◽  
Mehmet Girgin ◽  
Wilfried Weber ◽  
...  

Methods for screening combinations of signals for their effects on stem cell behavior are needed in the field of tissue engineering. We introduce a microgel-based screening platform for testing combinations of proteins on stem cell fate.


2020 ◽  
Author(s):  
Kira Allmeroth ◽  
Christine S. Kim ◽  
Andrea Annibal ◽  
Andromachi Pouikli ◽  
Carlos Andrés Chacón-Martínez ◽  
...  

AbstractStem cell differentiation is accompanied by an increase in mRNA translation. The rate of protein biosynthesis is influenced by the polyamines putrescine, spermidine, and spermine that are essential for cell growth and stem cell maintenance. However, the role of polyamines as endogenous effectors of stem cell fate and whether they act through translational control remains obscure. Here, we investigated the function of polyamines in stem cell fate decisions using hair follicle stem cell (HFSC) organoids. HFSCs showed lower translation rates than progenitor cells, and a forced suppression of translation by direct targeting of the ribosome or through specific depletion of natural polyamines elevated stemness. In addition, we identified N1-acetylspermidine as a novel parallel regulator of cell fate decisions, increasing proliferation without reducing translation. Overall, this study delineates the diverse routes of polyamine metabolism-mediated regulation of stem cell fate decisions.Key PointsLow mRNA translation rates characterize hair follicle stem cell (HFSC) stateDepletion of natural polyamines enriches HFSCs via reduced translationN1-acetylspermidine promotes HFSC state without reducing translationN1-acetylspermidine expands the stem cell pool through elevated proliferation


EMBO Reports ◽  
2021 ◽  
Author(s):  
Shang‐Kun Dai ◽  
Pei‐Pei Liu ◽  
Hong‐Zhen Du ◽  
Xiao Liu ◽  
Ya‐Jie Xu ◽  
...  

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