AI Article Synopsis
- The study evaluates the safety and effectiveness of using umbilical cord mesenchymal stem cells (UC-MSC) alongside haploidentical hematopoietic stem cell transplantation (hi-HSCT) in children with blood cancers.
- Results show that while UC-MSC treatment did not adversely affect engraftment times, it significantly improved overall survival (70.6% vs 23.1%) and disease-free survival (52.9% vs 0) compared to hi-HSCT alone.
- UC-MSC treatment was associated with lower rates of acute graft-versus-host disease (aGVHD) and transplant-related mortality, though it also led to a higher incidence of early cytomegalovirus (CM
Article Abstract
Objective: To analyse the efficacy and safety of co-transplantation of umbilical cord mesenchymal stem cell(UC-MSC) with haploidentical hematopoietic stem cell transplantation(hi-HSCT) in children with hematologic malignancy.
Methods: The clinical data of 47 children undergoing hi-HSCT were retrospectively analyzed from November 2003 to November 2014, among them 34 patients received UC-MSC from October 2011 to November 2014, and another 13 patients without UC-MSC from November 2003 to September 2011. The median follow-up time was 20(0.5-67) months.
Results: No adverse events were observed after the UC-MSC transplantation. The engraftment rate, the median neutrophils engraftment time and platelet engraftment time all were not significantly different between hi-HSCT and hi-HSCT+UC-MSCT(P>0.05). The three-years cumulative overall survival (70.6% vs 23.1%),(P=0.004), three-years cumulative disease-free survival(52.9% vs 0) (P=0), and early cytomegalovirus (CMV) viremia (91.2% vs 38.5%) (P=0) in UC-MSC+hi-HSCT group were statistically significantly higher than that in the conventional hi-HSCT group. The morbidity of aGVHD (44.1% vs 92.3%) (P=0.003), I-II aGVHD (26.5% vs 61.5%) (P=0.041) and transplantation-related mortality (11.8% vs 46.2%) (P=0.017) in UC-MSC+hi-HSCT group was statistically significantly lower than that in hi-HSCT group, however, the morbidity of III-IV aGVHD (17.6% vs 30.8%), cGVHD (26.5% vs 30.8%), HC (35.3% vs 7.7%), pulmonary infection (52.9% vs 46.2%) and relapse rate (32.4% vs 53.8%) were not statistically significantly different (P>0.05) between the 2 groups.
Conclusion: The application of umbilical cord mesenchymal stem cell in children undergoing hi-HSCT is safe, the UC-MSC can improve the overall survival, disease-free survival and reduce transplantation-related mortality. UC-MSC can reduce the morbidity of aGVHD, but increase the early infection of CMV, however it is nothing for the pulmonary infection and relapse in the children after hi-HSCT.
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| http://dx.doi.org/10.7534/j.issn.1009-2137.2017.04.034 | DOI Listing |
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