scholarly journals Hyaluronic Acid as Macromolecular Crowder in Equine Adipose-Derived Stem Cell Cultures

Cells ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 859
Author(s):  
Sergio Garnica-Galvez ◽  
Stefanie H. Korntner ◽  
Ioannis Skoufos ◽  
Athina Tzora ◽  
Nikolaos Diakakis ◽  
...  
Keyword(s):  
Stem Cell ◽  
Hyaluronic Acid ◽  
Cell Cultures ◽  
Hydrodynamic Radius ◽  
Negative Charge ◽  
Macromolecular Crowding ◽  
Molecular Weights ◽  
Tissue Equivalents ◽  
Collagen Iii ◽  
Adipose Derived Stem Cell

The use of macromolecular crowding in the development of extracellular matrix-rich cell-assembled tissue equivalents is continuously gaining pace in regenerative engineering. Despite the significant advancements in the field, the optimal macromolecular crowder still remains elusive. Herein, the physicochemical properties of different concentrations of different molecular weights hyaluronic acid (HA) and their influence on equine adipose-derived stem cell cultures were assessed. Within the different concentrations and molecular weight HAs, the 10 mg/mL 100 kDa and 500 kDa HAs exhibited the highest negative charge and hydrodynamic radius, and the 10 mg/mL 100 kDa HA exhibited the lowest polydispersity index and the highest % fraction volume occupancy. Although HA had the potential to act as a macromolecular crowding agent, it did not outperform carrageenan and Ficoll®, the most widely used macromolecular crowding molecules, in enhanced and accelerated collagen I, collagen III and collagen IV deposition.

scholarly journals Adipose-Derived Stem Cell-Derived Extracellular Vesicles Inhibit the Fibrosis of Fibrotic Buccal Mucosal Fibroblasts via the MicroRNA-375/FOXF1 Axis

2021 ◽  
Vol 2021 ◽  
pp. 1-15
Author(s):  
Bin Han ◽  
Yanhui Zhang ◽  
Yuxia Xiao ◽  
Bohong Shi ◽  
Hong Wu ◽  
...  
Keyword(s):  
Cell Proliferation ◽  
Stem Cell ◽  
Extracellular Vesicles ◽  
Oral Submucous Fibrosis ◽  
Precancerous Lesion ◽  
Oral Diseases ◽  
Collagen Iii ◽  
Submucous Fibrosis ◽  
Related Proteins ◽  
Adipose Derived Stem Cell

Oral submucous fibrosis (OSF) is a precancerous lesion. Adipose-derived stem cell- (ADSC-) derived extracellular vesicles (EVs) (ADSC-EVs) regulate multiple oral diseases. Hence, this study explored the mechanism of ADSC-EVs in OSF. ADSCs were transduced with microRNA- (miR-) 375 mimic. ADSC-EVs and miR-375-overexpressed ADSC-EVs (EVs-miR-375) were extracted and identified. miR-375 expression in EVs and fibrotic buccal mucosal fibroblasts (fBMFs) was detected. EV uptake by fBMFs was observed. The targeted relationship between miR-375 and forkhead box protein F1 (FOXF1) was predicted and verified. After EVs-miR-375 treatment or FOXF1 overexpression, fBMF cell proliferation, migration, invasion, and apoptosis were evaluated, and levels of apoptosis-related proteins (cleaved-caspase-3, Bax, and Bcl-2) and fibrosis markers (α-SMA, collagen I, and collagen III) were detected. Functional rescue experiments were further performed to verify the role of the miR-375/FOXF1 axis in OSF. miR-375 was notably upregulated in EVs-miR-375 and EVs-miR-375-treated fBMFs (all P < 0.001 ). ADSC-EVs carried miR-375 into fBMFs. fBMFs can internalize ADSC-EVs. EVs-miR-375 treatment markedly inhibited fBMF cell proliferation, migration, invasion, and fibrosis and promoted apoptosis (all P < 0.01 ). Moreover, miR-375 targeted FOXF1 in fBMFs. FOXF1 overexpression promoted fBMF cell biological behaviors and fibrosis, which were reversed after EVs-miR-375 treatment ( P < 0.01 or P < 0.001 ). We highlighted that ADSC-EVs inhibited fBMF fibrosis and then suppressed OSF progression via the miR-375/FOXF1 axis.

Adipose-derived stem cell-containing hyaluronic acid/alginate hydrogel improves vocal fold wound healing

2013 ◽  
Vol 124 (3) ◽  
pp. E64-E72 ◽  
Author(s):  
Young-Mo Kim ◽  
Se H. Oh ◽  
Jeong-Seok Choi ◽  
Songyi Lee ◽  
Jeong C. Ra ◽  
...  
Keyword(s):  
Wound Healing ◽  
Stem Cell ◽  
Hyaluronic Acid ◽  
Vocal Fold ◽  
Alginate Hydrogel ◽  
Adipose Derived Stem Cell

Baculovirus-transduced, VEGF-expressing adipose-derived stem cell sheet for the treatment of myocardium infarction

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 ◽  
...  
Keyword(s):  
Stem Cell ◽  
Cell Sheet ◽  
Myocardium Infarction ◽  
Adipose Derived Stem Cell

scholarly journals Temporomandibular Joint Osteoarthritis: Regenerative Treatment by a Stem Cell Containing Advanced Therapy Medicinal Product (ATMP)—An In Vivo Animal Trial

2021 ◽  
Vol 22 (1) ◽  
pp. 443
Author(s):  
Robert Köhnke ◽  
Marcus Oliver Ahlers ◽  
Moritz Alexander Birkelbach ◽  
Florian Ewald ◽  
Michael Krueger ◽  
...  
Keyword(s):  
Stem Cell ◽  
Hyaluronic Acid ◽  
Medicinal Product ◽  
Temporomandibular Joint ◽  
Stromal Cells ◽  
Stromal Cell ◽  
Advanced Therapy Medicinal Product ◽  
Animal Trial ◽  
Advanced Therapy ◽  
Temporomandibular Joint Osteoarthritis

Temporomandibular joint osteoarthritis (TMJ-OA) is a chronic degenerative disease that is often characterized by progressive impairment of the temporomandibular functional unit. The aim of this randomized controlled animal trial was a comparative analysis regarding the chondroregenerative potency of intra-articular stem/stromal cell therapy. Four weeks after combined mechanical and biochemical osteoarthritis induction in 28 rabbits, therapy was initiated by a single intra-articular injection, randomized into the following groups: Group 1: AB Serum (ABS); Group 2: Hyaluronic acid (HA); Group 3: Mesenchymal stromal cells (STx.); Group 4: Mesenchymal stromal cells in hyaluronic acid (HA + STx.). After another 4 weeks, the animals were euthanized, followed by histological examination of the removed joints. The histological analysis showed a significant increase in cartilage thickness in the stromal cell treated groups (HA + STx. vs. ABS, p = 0.028; HA + ST.x vs. HA, p = 0.042; STx. vs. ABS, p = 0.036). Scanning electron microscopy detected a similar heterogeneity of mineralization and tissue porosity in the subchondral zone in all groups. The single intra-articular injection of a stem cell containing, GMP-compliant advanced therapy medicinal product for the treatment of iatrogen induced osteoarthritis of the temporomandibular joint shows a chondroregenerative effect.

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