In vitro and clinical evaluation of Umbilical Cord derived Mesenchymal Stromal Cell Conditioned Media for Hair Regeneration

Author(s):  
Caroline Mathen ◽  
Wilfrid Dsouza
2018 ◽  
Vol 119 (12) ◽  
pp. 10365-10375 ◽  
Author(s):  
Hamideh Jafarzadeh ◽  
Hamid Nazarian ◽  
Marefat Ghaffari Novin ◽  
Zahra Shams Mofarahe ◽  
Fatemeh Eini ◽  
...  

2019 ◽  
Vol 130 (5) ◽  
pp. 778-790 ◽  
Author(s):  
Amir K. Varkouhi ◽  
Mirjana Jerkic ◽  
Lindsay Ormesher ◽  
Stéphane Gagnon ◽  
Sakshi Goyal ◽  
...  

Abstract Editor’s Perspective What We Already Know about This Topic What This Article Tells Us That Is New Background Human umbilical cord mesenchymal stromal cells possess considerable therapeutic promise for acute respiratory distress syndrome. Umbilical cord mesenchymal stromal cells may exert therapeutic effects via extracellular vesicles, while priming umbilical cord mesenchymal stromal cells may further enhance their effect. The authors investigated whether interferon-γ–primed umbilical cord mesenchymal stromal cells would generate mesenchymal stromal cell–derived extracellular vesicles with enhanced effects in Escherichia coli (E. coli) pneumonia. Methods In a university laboratory, anesthetized adult male Sprague–Dawley rats (n = 8 to 18 per group) underwent intrapulmonary E. coli instillation (5 × 109 colony forming units per kilogram), and were randomized to receive (a) primed mesenchymal stromal cell–derived extracellular vesicles, (b) naïve mesenchymal stromal cell–derived extracellular vesicles (both 100 million mesenchymal stromal cell–derived extracellular vesicles per kilogram), or (c) vehicle. Injury severity and bacterial load were assessed at 48 h. In vitro studies assessed the potential for primed and naïve mesenchymal stromal cell–derived extracellular vesicles to enhance macrophage bacterial phagocytosis and killing. Results Survival increased with primed (10 of 11 [91%]) and naïve (8 of 8 [100%]) mesenchymal stromal cell–derived extracellular vesicles compared with vehicle (12 of 18 [66.7%], P = 0.038). Primed—but not naïve—mesenchymal stromal cell–derived extracellular vesicles reduced alveolar–arterial oxygen gradient (422 ± 104, 536 ± 58, 523 ± 68 mm Hg, respectively; P = 0.008), reduced alveolar protein leak (0.7 ± 0.3, 1.4 ± 0.4, 1.5 ± 0.7 mg/ml, respectively; P = 0.003), increased lung mononuclear phagocytes (23.2 ± 6.3, 21.7 ± 5, 16.7 ± 5 respectively; P = 0.025), and reduced alveolar tumor necrosis factor alpha concentrations (29 ± 14.5, 35 ± 12.3, 47.2 ± 6.3 pg/ml, respectively; P = 0.026) compared with vehicle. Primed—but not naïve—mesenchymal stromal cell–derived extracellular vesicles enhanced endothelial nitric oxide synthase production in the injured lung (endothelial nitric oxide synthase/β-actin = 0.77 ± 0.34, 0.25 ± 0.29, 0.21 ± 0.33, respectively; P = 0.005). Both primed and naïve mesenchymal stromal cell–derived extracellular vesicles enhanced E. coli phagocytosis and bacterial killing in human acute monocytic leukemia cell line (THP-1) in vitro (36.9 ± 4, 13.3 ± 8, 0.1 ± 0.01%, respectively; P = 0.0004) compared with vehicle. Conclusions Extracellular vesicles from interferon-γ–primed human umbilical cord mesenchymal stromal cells more effectively attenuated E. coli–induced lung injury compared with extracellular vesicles from naïve mesenchymal stromal cells, potentially via enhanced macrophage phagocytosis and killing of E. coli.


Cytotherapy ◽  
2017 ◽  
Vol 19 (3) ◽  
pp. 371-383 ◽  
Author(s):  
Meirong Li ◽  
Yali Zhao ◽  
Haojie Hao ◽  
Liang Dong ◽  
Jiejie Liu ◽  
...  

2018 ◽  
Vol 113 ◽  
pp. 692-700 ◽  
Author(s):  
Joanna Filipowska ◽  
Joanna Lewandowska-Łańcucka ◽  
Adriana Gilarska ◽  
Łukasz Niedźwiedzki ◽  
Maria Nowakowska

2020 ◽  
Vol 29 (9) ◽  
pp. 586-598 ◽  
Author(s):  
Tanira Giara Mello ◽  
Paulo Henrique Rosado-de-Castro ◽  
Raquel Maria Pereira Campos ◽  
Juliana Ferreira Vasques ◽  
William Simões Rangel-Junior ◽  
...  

Author(s):  
Alison Nicole Abele ◽  
Elizabeth S Taglauer ◽  
Maricar Almeda ◽  
Noah Wilson ◽  
Abigail Abikoye ◽  
...  

Background: Antenatal stressors such as chorioamnionitis (CA) increase the risk for bronchopulmonary dysplasia (BPD). Studies have shown that experimental BPD can be ameliorated by postnatal treatment with mesenchymal stromal cell-derived extracellular vesicles (MEx). However, the antenatal efficacy of MEx to prevent BPD is unknown. Objective: To determine whether antenatal MEx therapy attenuates intrauterine inflammation and preserves lung growth in a rat model of CA-induced BPD. Methods: At embryonic day (E)20, rat litters were treated with intra-amniotic injections of saline, endotoxin (ETX) to model chorioamnionitis, MEx, or ETX plus MEx followed by cesarean section delivery with placental harvest at E22. Placental and lung evaluations were conducted at day 0 and day 14, respectively. To assess the effects of ETX and MEx on lung growth in vitro, E15 lung explants were imaged for distal branching. Results: Placental tissues from ETX-exposed pregnancies showed increased expression of inflammatory markers NLRP-3 and IL-1ß and altered spiral artery morphology. Additionally, infant rats exposed to intrauterine ETX had reduced alveolarization and pulmonary vessel density (PVD), increased right ventricular hypertrophy (RVH), and decreased lung mechanics. Intrauterine MEx therapy of ETX-exposed pups reduced inflammatory cytokines, normalized spiral artery architecture, and preserved distal lung growth and mechanics. In vitro studies showed that MEx treatment enhanced distal lung branching and increased VEGF and SPC gene expression. Conclusions: Antenatal MEx treatment preserved distal lung growth and reduced intrauterine inflammation in a model of CA-induced BPD. We speculate that MEx may provide a novel therapeutic strategy to prevent BPD due to antenatal inflammation.


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