Intact human amniotic membrane differentiated towards the chondrogenic lineage

Human amniotic membrane (hAM) represents a tissue that is well established as biomaterial in the clinics with potential for new applications in regenerative medicine. For tissue engineering (TE) strategies, cells are usually combined with inductive factors and a carrier substrate. We have previously...

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Veröffentlicht in:Cell and tissue banking 2014-06, Vol.15 (2), p.213-225
Hauptverfasser: Lindenmair, Andrea, Nürnberger, Sylvia, Stadler, Guido, Meinl, Alexandra, Hackl, Christa, Eibl, Johann, Gabriel, Christian, Hennerbichler, Simone, Redl, Heinz, Wolbank, Susanne
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container_issue 2
container_start_page 213
container_title Cell and tissue banking
container_volume 15
creator Lindenmair, Andrea
Nürnberger, Sylvia
Stadler, Guido
Meinl, Alexandra
Hackl, Christa
Eibl, Johann
Gabriel, Christian
Hennerbichler, Simone
Redl, Heinz
Wolbank, Susanne
description Human amniotic membrane (hAM) represents a tissue that is well established as biomaterial in the clinics with potential for new applications in regenerative medicine. For tissue engineering (TE) strategies, cells are usually combined with inductive factors and a carrier substrate. We have previously recognized that hAM represents a natural, preformed sheet including highly potent stem cells. In the present approach for cartilage regeneration we have induced chondrogenesis in hAM in vitro. For this, hAM biopsies were cultured for up to 56 days under chondrogenic conditions. The induced hAM was characterized for remaining viability, glycosaminoglycan (GAG) accumulation using histochemical analysis, and a quantitative assay. Collagen I, II and X was immunohistochemically determined and cartilage-specific mRNA expression of (sex determining region Y-) box 9, cartilage oligomeric matrix protein (COMP), aggrecan (AGC1), versican (CSPG2), COL1A1, COL9A2, melanoma inhibitory activity (MIA), and cartilage-linking protein 1 (CRTL1) analyzed by quantitative real-time polymerase chain reaction. Human AM was successfully induced to accumulate GAG, as demonstrated by Alcianblue staining and a significant ( p  
doi_str_mv 10.1007/s10561-014-9454-9
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For tissue engineering (TE) strategies, cells are usually combined with inductive factors and a carrier substrate. We have previously recognized that hAM represents a natural, preformed sheet including highly potent stem cells. In the present approach for cartilage regeneration we have induced chondrogenesis in hAM in vitro. For this, hAM biopsies were cultured for up to 56 days under chondrogenic conditions. The induced hAM was characterized for remaining viability, glycosaminoglycan (GAG) accumulation using histochemical analysis, and a quantitative assay. Collagen I, II and X was immunohistochemically determined and cartilage-specific mRNA expression of (sex determining region Y-) box 9, cartilage oligomeric matrix protein (COMP), aggrecan (AGC1), versican (CSPG2), COL1A1, COL9A2, melanoma inhibitory activity (MIA), and cartilage-linking protein 1 (CRTL1) analyzed by quantitative real-time polymerase chain reaction. Human AM was successfully induced to accumulate GAG, as demonstrated by Alcianblue staining and a significant ( p  &lt; 0.001) increase of GAG/viability under chondrogenic conditions peaking in a 29.9 ± 0.9-fold induction on day 56. Further, upon chondrogenic induction collagen II positive areas were identified within histological sections and cartilage-specific markers including COMP, AGC1, CSPG2, COL1A1, COL9A2, MIA, and CRTL1 were found upregulated at mRNA level. This is the first study, demonstrating that upon in vitro induction viable human amnion expresses cartilage-specific markers and accumulates GAGs within the biomatrix. 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subjects Amnion - cytology
Biomedical and Life Sciences
Biomedicine
Biopsy
Cartilage - cytology
Cell Biology
Cell culture
Cell Differentiation - physiology
Cell Lineage - physiology
Cells, Cultured
Chondrogenesis - physiology
Female
Humans
Life Sciences
Membranes
Original Paper
Placenta - cytology
Pregnancy
Stem Cells - cytology
Tissues
Transplant Surgery
title Intact human amniotic membrane differentiated towards the chondrogenic lineage
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