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Immunomodulatory potential of Sertoli cell progenitors during heart regeneration after injury in Xenopus
Žabková, Světlana ; Krylov, Vladimír (advisor) ; Procházka, Jan (referee)
The high percentage of mortality associated with cardiovascular diseases shows the importance of studying cardiac muscle regeneration. An interesting approach for heart regeneration may be the use of a cell culture of Sertoli progenitor cells and peritubular myoid cells derived from juvenile testes of Xenopus tropicalis that was named XtiSC. These cells were found to share a number of characteristics which are typical for mesenchymal stem cells. Mesenchymal stems cells are well-known for their immunomodulatory and anti-inflammatory abilities that promote heart regeneration. The goal of this master thesis was to test the immunomodulatory potential of Sertoli progenitor cells during heart regeneration after heart apex amputation in Xenopus tropicalis without macrophages. The reason for macrophages depletion was the assumption that XtiSC behave like macrophages in many aspects. Clodronate encapsulated in liposomes was chosen as a tool for macrophage depletion. It was confirmed that XtiSC can positively influence heart regeneration in a classic model of heart regeneration, but also in a model with depletion of macrophages. It was revealed that Xenopus tropicalis adults without macrophages injected with XtiCS into the hindlimb skeletal muscle 3 days before apical resection showed reduced fibronectin...

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