Journal
FRONTIERS IN IMMUNOLOGY
Volume 13, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fimmu.2022.923286
Keywords
COVID-19; umbilical cord mesenchymal stromal cells (UC-MSCs); immunomodulation; adverse events and severe adverse events; the Mortality rate
Categories
Funding
- National Natural Science Foundation of China
- Natural Science Foundation of Shandong Province
- [82002302]
- [ZR2020QH074]
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This study aimed to evaluate the effectiveness of umbilical cord mesenchymal stromal cells (UC-MSCs) in patients with COVID-19. The meta-analysis results showed that UC-MSCs can reduce mortality in COVID-19 patients and there is no significant correlation between adverse events and UC-MSC treatment. Additionally, treatment with UC-MSCs was found to suppress inflammation and improve pulmonary symptoms. Therefore, UC-MSCs hold promise as a safe and effective treatment for COVID-19.
Objectives A major challenge for COVID-19 therapy is dysregulated immune response associated with the disease. Umbilical cord mesenchymal stromal cells (UC-MSCs) may be a promising candidate for COVID-19 treatment owing to their immunomodulatory and anti-inflammatory functions. Therefore, this study aimed to evaluate the effectiveness of UC-MSCs inpatients with COVID-19. Method Medline, Embase, PubMed, Cochrane Library, and Web of Science databases were searched to collect clinical trials concerning UC-MSCs for the treatment of COVID-19. After literature screening, quality assessment, and data extraction, a systematic review and meta-analysis of the included study were performed. Results This systematic review and meta-analysis were prospectively registered on PROSPERO, and the registration number is CRD42022304061. After screening, 10 studies involving 293 patients with COVID-19 were eventually included. Our meta-analysis results showed that UC-MSCs can reduce mortality (relative risk [RR] =0.60, 95% confidence interval [CI]: [0.38, 0.95], P=0.03) in COVID-19 patients. No significant correlation was observed between adverse events and UC-MSC treatment (RR=0.85, 95% CI: [0.65, 1.10], P=0.22; RR=1.00, 95%CI: [0.64, 1.58], P=1.00). In addition, treatment with UC-MSCs was found to suppress inflammation and improve pulmonary symptoms. Conclusions UC-MSCs hold promise as a safe and effective treatment for COVID-19.
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