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Prophylactic versus therapeutic role of the transplanted CD34+ Umbilical Cord Blood Stem Cells and Wharton Jelly Mesenchymal Stem Cells in early / acute hepatic S. mansoni granulomas reversal in mice; a novel approach.

Abstract：

PURPOSE:Praziquantel (PZQ) is the conventional antibilharzial agent. Nevertheless, no antibilharzial prophylactic agents or 100% curable therapy approved and no reported data about use of human CD34+ Umbilical Cord Blood Stem Cells (CD34+UCBSCs) or Wharton Jelly Mesenchymal Stem Cells (WJMSCs) in prevention and/or complete eradication of acute S.mansoni granulomas in liver. We aimed to study possible prophylactic vs therapeutic role of human CD34+UCBSCs and WJMSCs in acute hepatic bilharzial granulomas in pre vs post-infected mice. METHODS:Seventy mice were divided into 7 groups (10 mice each): Normal, S.mansoni-infected, post-infected PZQ-treated, CD34+UCBSCs pre and post-infected, WJMSCs pre and post-infected. Serological, parasitological, histopathological evaluation using OCT4 & TGFB immunohistochemistry and quantitative image analysis assessment of TGFB-stained fibrogenesis in liver granulomas performed. RESULTS:Histopathologically, surprisingly and significantly, the prophylactic pre-infection stem cells (CD34+UCBSCs and WJMSCs) & similarly the post-infection CD34+UCBSCs treatment revealed eradication/reversal of the entire granulomas and no fibrosis. Moreover, post-infection PZQ treatment showed fewer and significantly smaller granulomas than post-infection WJMSCs treatment. Nevertheless, post-infection WJMSCs exhibited non-significant less TGFB-stained fibrogenesis. CONCLUSION:CD34+UCBSCs exerted the best prophylactic and therapeutic roles in prevention and complete cure of acute hepatic S.mansoni granulomas over WJMSCs and PZQ. In contrast, only pre-infection WJMSCs exhibited similar preventive (prophylactic) effect. On the contrary, post-infection WJMSCs were the worst (incompletely reversed granulomas). Post-infection Praziquantel was overall better therapeutically than WJMSCs in this regard. Accordingly, when it comes to WJMSCs application, WJMSCs are better used as a pre-infection prophylactic and preventive tool rather than a post-infection therapy. Further studies are needed.

journal_name

Exp Parasitol

journal_title

Experimental parasitology

authors

Magdy M,Fahmy A,Zaki NI,Mohamed AK

doi

10.1016/j.exppara.2020.107938

subject

Has Abstract

pub_date

2020-10-01 00:00:00

pages

107938

eissn

0014-4894

issn

1090-2449

pii

S0014-4894(19)30324-8

journal_volume

217

pub_type

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