scholarly journals Preconditioned Mesenchymal Stromal Cells to Improve Allotransplantation Outcome

Cells ◽  
2021 ◽  
Vol 10 (9) ◽  
pp. 2325
Author(s):  
Hui-Yun Cheng ◽  
Madonna Rica Anggelia ◽  
Cheng-Hung Lin ◽  
Chih-Fan Lin

Mesenchymal stromal cells (MSCs) are tissue-derived progenitor cells with immunomodulatory as well as multilineage differentiation capacities, and have been widely applied as cellular therapeutics in different disease systems in both preclinical models and clinical studies. Although many studies have applied MSCs in different types of allotransplantation, the efficacy varies. It has been demonstrated that preconditioning MSCs prior to in vivo administration may enhance their efficacy. In the field of organ/tissue allotransplantation, many recent studies have shown that preconditioning of MSCs with (1) pretreatment with bioactive factors or reagents such as cytokines, or (2) specific gene transfection, could prolong allotransplant survival and improve allotransplant function. Herein, we review these preconditioning strategies and discuss potential directions for further improvement.

F1000Research ◽  
2021 ◽  
Vol 10 ◽  
pp. 1011
Author(s):  
Camille Maltais-Bilodeau ◽  
Ewa Henckel ◽  
Kelly D. Cobey ◽  
Nadera Ahmadzai ◽  
Becky Skidmore ◽  
...  

Introduction: Necrotizing enterocolitis is an acute inflammatory disease of the intestine that can lead to necrosis and bowel perforation. It is a severe complication of preterm birth. It’s mortality rate is up to 50% and survival after necrotizing enterocolitis leads to long-term complications. The current treatment is supportive and includes bowel rest and decompression and antibiotics. Thus, new treatments are necessary to reduce mortality and morbidity. Mesenchymal stromal cells are known to have anti-inflammatory properties and might be a promising option for treatment. Here we present a protocol for a systematic review with the aim to explore the efficacy of cell therapies with mesenchymal stromal cells in animal models of necrotizing enterocolitis. The primary outcome is histological signs of necrotizing enterocolitis. Additional outcomes include survival, bowel perforation, gut permeability, gut motility, levels of inflammatory markers, cytokine levels and adverse events. Methods: We will conduct a systematic search of MEDLINE, Embase, and Web of Science databases. The retrieved records will be screened individually by two investigators. We will include all preclinical in vivo animal models of experimentally induced necrotizing enterocolitis that evaluate the efficacy of mesenchymal stromal cells or other cell therapy treatments. Outcome data will be extracted from each article and risk of bias assessment performed. Funnel plots and SYRCLE’s risk of bias tool for animal studies will be used. Data will be reported as ratios, divided in predefined subgroups where relevant. Conclusions: This systematic review aims to examine the efficacy of mesenchymal stromal cells in preclinical models of necrotizing enterocolitis and whether there is sufficient evidence to support a clinical trial of efficacy and safety of the treatment with mesenchymal stromal cells in infants with necrotizing enterocolitis.


2021 ◽  
Author(s):  
Camille Maltais-Bilodeau ◽  
Ewa Henckel ◽  
Kelly D. Cobey ◽  
Nadera Ahmadzai ◽  
Becky Skidmore ◽  
...  

Abstract BackgroundNecrotizing enterocolitis is an acute inflammatory disease of the intestine that can lead to necrosis and bowel perforation. It is a severe complication of preterm birth with a prevalence of 7% in infants with a birth weight less than 1500 grams. It’s mortality rate is up to 30% and survival after necrotizing enterocolitis leads to long-term gastrointestinal and neurocognitive consequences. The current treatment is supportive and includes bowel rest and decompression and antibiotics. Thus, new treatments are necessary to reduce mortality and morbidity. Mesenchymal stromal cells are known to have anti-inflammatory properties and might be a promising option for treatment. Here we present a protocol for a systematic review with the aim to explore the efficacy of cell therapies with mesenchymal stromal cells in animal models of necrotizing enterocolitis. The primary outcome is histological signs of necrotizing enterocolitis. Additional outcomes include survival, bowel perforation, gut permeability, gut motility, levels of inflammatory markers, cytokine levels and adverse events.MethodsWe will conduct a systematic search of MEDLINE, Embase, and Web of Science databases. The retrieved records will be screened individually by two investigators. We will include all preclinical in vivo animal models of experimentally induced NEC that evaluate the efficacy of mesenchymal stromal cells or other cell therapy treatments. Outcome data will be extracted from each article and risk of bias assessment performed. Funnel plots and SYRCLE’s risk of bias tool for animal studies will be used. Data will be reported as ratios, divided in predefined subgroups where relevant. DiscussionThis systematic review aims to examine the efficacy of mesenchymal stromal cells in preclinical models of necrotizing enterocolitis and whether there is sufficient evidence to support a clinical trial of efficacy and safety of the treatment with mesenchymal stromal cells in infants with necrotizing enterocolitis.Systematic review registrationThis protocol has been registered on Open Science framework: osf.io/5rc6t


2021 ◽  
Vol 10 (13) ◽  
pp. 2925
Author(s):  
Manuel Sanchez-Diaz ◽  
Maria I. Quiñones-Vico ◽  
Raquel Sanabria de la Torre ◽  
Trinidad Montero-Vílchez ◽  
Alvaro Sierra-Sánchez ◽  
...  

Mesenchymal Stromal Cells (MSCs) are of great interest in cellular therapy. Different routes of administration of MSCs have been described both in pre-clinical and clinical reports. Knowledge about the fate of the administered cells is critical for developing MSC-based therapies. The aim of this review is to describe how MSCs are distributed after injection, using different administration routes in animal models and humans. A literature search was performed in order to consider how MSCs distribute after intravenous, intraarterial, intramuscular, intraarticular and intralesional injection into both animal models and humans. Studies addressing the biodistribution of MSCs in “in vivo” animal models and humans were included. After the search, 109 articles were included in the review. Intravenous administration of MSCs is widely used; it leads to an initial accumulation of cells in the lungs with later redistribution to the liver, spleen and kidneys. Intraarterial infusion bypasses the lungs, so MSCs distribute widely throughout the rest of the body. Intramuscular, intraarticular and intradermal administration lack systemic biodistribution. Injection into various specific organs is also described. Biodistribution of MSCs in animal models and humans appears to be similar and depends on the route of administration. More studies with standardized protocols of MSC administration could be useful in order to make results homogeneous and more comparable.


Cells ◽  
2021 ◽  
Vol 10 (2) ◽  
pp. 403
Author(s):  
Girolamo Di Maio ◽  
Nicola Alessio ◽  
Ibrahim Halil Demirsoy ◽  
Gianfranco Peluso ◽  
Silverio Perrotta ◽  
...  

Brown-like adipocytes can be induced in white fat depots by a different environmental or drug stimuli, known as “browning” or “beiging”. These brite adipocytes express thermogenin UCP1 protein and show different metabolic advantages, such as the ability to acquire a thermogenic phenotype corresponding to standard brown adipocytes that counteracts obesity. In this research, we evaluated the effects of several browning agents during white adipocyte differentiation of bone marrow-derived mesenchymal stromal cells (MSCs). Our in vitro findings identified two compounds that may warrant further in vivo investigation as possible anti-obesity drugs. We found that rosiglitazone and sildenafil are the most promising drug candidates for a browning treatment of obesity. These drugs are already available on the market for treating diabetes and erectile dysfunction, respectively. Thus, their off-label use may be contemplated, but it must be emphasized that some severe side effects are associated with use of these drugs.


2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Lynn M Pezzanite ◽  
Lisa A Fortier ◽  
Douglas F Antczak ◽  
Jennifer M Cassano ◽  
Margaret M Brosnahan ◽  
...  

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