scholarly journals Improving Viability and Transfection Efficiency with Human Umbilical Cord Wharton's Jelly Cells Through Use of a ROCK Inhibitor

2014 ◽  
Vol 16 (2) ◽  
pp. 91-97 ◽  
Author(s):  
Adam J. Mellott ◽  
Megan E. Godsey ◽  
Heather E. Shinogle ◽  
David S. Moore ◽  
M. Laird Forrest ◽  
...  
2019 ◽  
Vol 508 (4) ◽  
pp. 1149-1154
Author(s):  
José Romo-Yáñez ◽  
Mauricio Domínguez-Castro ◽  
Josiff S. Flores-Reyes ◽  
Higinio Estrada-Juárez ◽  
Ismael Mancilla-Herrera ◽  
...  

Pharmaceutics ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 896
Author(s):  
Ana Isabel Ramos-Murillo ◽  
Elizabeth Rodríguez ◽  
Karl Beltrán ◽  
Cristian Ricaurte ◽  
Bernardo Camacho ◽  
...  

Mesenchymal stromal cells (MSC) derived from human umbilical cord Wharton’s jelly (WJ) have a wide therapeutic potential in cell therapy and tissue engineering because of their multipotential capacity, which can be reinforced through gene therapy in order to modulate specific responses. However, reported methodologies to transfect WJ-MSC using cationic polymers are scarce. Here, WJ-MSC were transfected using 25 kDa branched- polyethylenimine (PEI) and a DNA plasmid encoding GFP. PEI/plasmid complexes were characterized to establish the best transfection efficiencies with lowest toxicity. Expression of MSC-related cell surface markers was evaluated. Likewise, immunomodulatory activity and multipotential capacity of transfected WJ-MSC were assessed by CD2/CD3/CD28-activated peripheral blood mononuclear cells (PBMC) cocultures and osteogenic and adipogenic differentiation assays, respectively. An association between cell number, PEI and DNA content, and transfection efficiency was observed. The highest transfection efficiency (15.3 ± 8.6%) at the lowest toxicity was achieved using 2 ng/μL DNA and 3.6 ng/μL PEI with 45,000 WJ-MSC in a 24-well plate format (200 μL). Under these conditions, there was no significant difference between the expression of MSC-identity markers, inhibitory effect on CD3+ T lymphocytes proliferation and osteogenic/adipogenic differentiation ability of transfected WJ-MSC, as compared with non-transfected cells. These results suggest that the functional properties of WJ-MSC were not altered after optimized transfection with PEI.


2021 ◽  
Vol 11 (7) ◽  
Author(s):  
Zhao Ting ◽  
Yan Zhi‐xin ◽  
Tan You‐wen ◽  
Yang Fu‐ji ◽  
Sun Hui ◽  
...  

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Ahui Song ◽  
Jingjing Wang ◽  
Yan Tong ◽  
Junyan Fang ◽  
Yi Zhang ◽  
...  

Abstract Background Wharton’s jelly-derived mesenchymal stem cells (WJ-MSCs) from the human umbilical cord have been studied extensively due to their immunomodulatory functions. Large-conductance Ca2+-activated K+ (BKCa channels) channels are involved in many inflammatory responses, but their involvement in the anti-inflammatory activity of WJ-MSCs is unknown. The underlying molecular mechanism, through which BKCa channels mediate the immunomodulation of WJ-MSC, which may include changes in exosomes proteomics, has not yet been clarified. Methods Alizarin staining, Oil Red O staining, and flow cytometry were used to identify WJ-MSCs, which were isolated from human umbilical cord Wharton’s jelly. BKCa channels were detected in WJ-MSCs using western blotting, real-time polymerase chain reaction (real-time PCR), and electrophysiology, and cytokine expression was examined using real-time PCR and enzyme-linked immunosorbent assays (ELISAs). Exosomes were characterized using transmission electron microscopy and nanoparticle tracking analysis. Proteomics analysis was performed to explore exosomal proteomic profiles. Results The cells derived from human umbilical cord Wharton’s jelly were identified as MSCs. BKCa channels were detected in the isolated WJ-MSCs, and the expression of these channels increased after lipopolysaccharide (LPS) stimulation. BKCa channels blockade in LPS-treated WJ-MSCs induced apoptosis and decreased interleukin-6 (IL-6) expression. Furthermore, THP-1 cells (human monocytic cell line) stimulated with LPS/interferon gamma (IFN-γ) produced more anti-inflammatory cytokines after treatment with exosomes derived from BKCa channel-knockdown WJ-MSCs (si-exo). We also observed altered expression of mitochondrial ATP synthase alpha subunit (ATP5A1), filamin B, and other proteins in si-exo, which might increase the anti-inflammatory activity of macrophages. Conclusions Our study described the functional expression of BKCa channels in WJ-MSCs, and BKCa channels regulated the immunomodulatory properties of WJ-MSCs by affecting the exosomal protein profiles during the inflammatory response.


PLoS ONE ◽  
2017 ◽  
Vol 12 (1) ◽  
pp. e0168059 ◽  
Author(s):  
Prapot Tanthaisong ◽  
Sumeth Imsoonthornruksa ◽  
Apichart Ngernsoungnern ◽  
Piyada Ngernsoungnern ◽  
Mariena Ketudat-Cairns ◽  
...  

PLoS ONE ◽  
2017 ◽  
Vol 12 (2) ◽  
pp. e0172098 ◽  
Author(s):  
Sushma Jadalannagari ◽  
Gabriel Converse ◽  
Christopher McFall ◽  
Eric Buse ◽  
Michael Filla ◽  
...  

2019 ◽  
Vol 15 (6) ◽  
pp. 900-918 ◽  
Author(s):  
Tiziana Corsello ◽  
Giandomenico Amico ◽  
Simona Corrao ◽  
Rita Anzalone ◽  
Francesca Timoneri ◽  
...  

Stem Cells ◽  
2008 ◽  
Vol 26 (11) ◽  
pp. 2865-2874 ◽  
Author(s):  
Mark L. Weiss ◽  
Cameron Anderson ◽  
Satish Medicetty ◽  
Kiran B. Seshareddy ◽  
Rita J. Weiss ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document