Do Mesenchymal Stem Cells Modulate the Milieu of Reconstructed Bladder Wall?

作者：Pokrywczynska Marta^*; Jundzill Arkadiusz; Bodnar Magdalena; Adamowicz Jan; Tworkiewicz Jakub; Szylberg Lukasz; Debski Robert; Marszalek Andrzej; Drewa Tomasz

来源：Archivum Immunologiae et Therapiae Experimentalis, 2013, 61(6): 483-493.

DOI：10.1007/s00005-013-0249-7

• Bladder regeneration
• Cytokines
• Matrix metalloproteinases
• Mesenchymal stem cells
• Tissue engineering

To evaluate the mesenchymal stem cells (MSCs) influence on cytokines and matrix metalloproteinases (MMPs) expression in rat bladder wall regeneration. MSCs cultures from the bone marrow were established. Acellular matrices from the bladder submucosa were prepared. Bladders were reconstructed using cell-seeded (n = 5) and unseeded (n = 5) grafts. MSCs were injected into the bladder wall (n = 5), bladders were incised and MSCs were injected into the circulation (n = 5) or were left intact (n = 5). Animals were killed after 3 months. Bladder histology and immunohistochemical staining of IL-2, IL-4, IL-6, IL-10, TNF-alpha, TGF-beta 1, IFN-gamma, MMP-2, and MMP-9 were done. Bladders reconstructed with cell-seeded grafts mimicked native tissue, while unseeded grafts revealed shrinkage and morphological irregularities. There were no morphological changes in bladders of other groups. Different pattern of cytokine and MMP expression was observed. Increased expression of anti-inflammatory cytokines and MMPs in bladder promotes detrusor regeneration.

• 出版日期2013-12