A polydopamine peptide coating enables adipose-derived stem cell growth on the silicone surface of cochlear implant electrode arrays

2017 ◽  
Vol 106 (4) ◽  
pp. 1431-1438 ◽  
Author(s):  
Philipp Schendzielorz ◽  
Kristen Rak ◽  
Katrin Radeloff ◽  
Johannes Völker ◽  
Thomas Gehrke ◽  
...  
2017 ◽  
Vol 5 ◽  
pp. 20-21
Author(s):  
Robert P. Gersch ◽  
Joshua Glahn ◽  
Michael G. Tecce ◽  
Anthony J. Wilson ◽  
Ivona Percec

Author(s):  
Robert P. Gersch ◽  
Joshua Glahn ◽  
Michael G. Tecce ◽  
Anthony J. Wilson ◽  
Ivona Percec

Pharmaceutics ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1189
Author(s):  
Liliana-Roxana Balahura ◽  
Sorina Dinescu ◽  
Mihaela Balaș ◽  
Alexandra Cernencu ◽  
Adriana Lungu ◽  
...  

The structure and biocompatibility analysis of a hydrogel based on cellulose nanofibers (CNFs) combined with alginate/pectin (A.CNF or P.CNF) and enriched with 1% or 5% 5-FU revealed more favorable properties for the cellular component when pectin was dispersed within CNFs. 5-Fluorouracil (5-FU) is an antimetabolite fluoropyrimidine used as antineoplastic drug for the treatment of multiple solid tumors. 5-FU activity leads to caspase-1 activation, secretion and maturation of interleukins (IL)-1, IL-18 and reactive oxygen species (ROS) generation. Furthermore, the effects of embedding 5-FU in P.CNF were explored in order to suppress breast tumor cell growth and induce inflammasome complex activation together with extra- and intracellular ROS generation. Exposure of tumor cells to P.CNF/5-FU resulted in a strong cytotoxic effect, an increased level of caspase-1 released in the culture media and ROS production—the latter directly proportional to the concentration of anti-tumor agent embedded in the scaffolds. Simultaneously, 5-FU determined the increase of p53 and caspase-1 expressions, both at gene and protein levels. In conclusion, P.CNF/5-FU scaffolds proved to be efficient against breast tumor cells growth due to pyroptosis induction. Furthermore, biocompatibility and the potential to support human adipose-derived stem cell growth were demonstrated, suggesting that these 3D systems could be used in soft tissue reconstruction post-mastectomy.


Biomaterials ◽  
2014 ◽  
Vol 35 (1) ◽  
pp. 174-184 ◽  
Author(s):  
Tsung-Szu Yeh ◽  
Yu-Hua Dean Fang ◽  
Chia-Hsin Lu ◽  
Shao-Chieh Chiu ◽  
Chia-Lin Yeh ◽  
...  

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