Matrix Associated Stem Cell Implants
Matrix Associated Stem Cell Implants - Related Videos
04:39
Implantation of Ferumoxides Labeled Human Mesenchymal Stem Cells in Cartilage Defects
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Cited by 8 •
2010
Goal of the presentation is to demonstrate a highly reproducible method to generate matrix associated stem cell implants in cartilage defects, which can be visualized with MR imaging. Stem cells are labeled with FDA-approved Ferumoxides, mixed with agarose, implanted into cartilage defects and imaged with a 7T MR scanner.
22:06
Derivation of Hematopoietic Stem Cells from Murine Embryonic Stem Cells
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Cited by 8 •
2007
This protocol details the derivation of transplantable hematopoietic stem cells from mouse embryonic stem cells (ESC) and their subsequent injection into lethally irradiated recipient mice. Briefly, ESC are differentiated as embryoid bodies, which are then infected with retroviral HoxB4 and co-cultured with OP9 stromal cells and hematopoietic cytokines.
10:48
Integration Free Derivation of Human Induced Pluripotent Stem Cells Using Laminin 521 Matrix
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Cited by 8 •
2017
Robust derivation of human induced pluripotent stem (hiPS) cells was achieved by using non-integrating Sendai virus (SeV) vector mediated reprogramming of dermal fibroblasts. hiPS cell maintenance and clonal expansion was performed using xeno-free and chemically defined culture conditions with recombinant human laminin 521 (LN-521) matrix and Essential E8 (E8) Medium.
11:22
Treatment of Osteochondral Defects in the Rabbit's Knee Joint by Implantation of Allogeneic Mesenchymal Stem Cells in Fibrin Clots
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Cited by 32 •
2013
An experimental technique for the treatment of osteochondral defects in the rabbit's knee joint is described. The implantation of allogeneic mesenchymal stem cells into osteochondral defects provides a promising development in the field of tissue engineering. The preparation of fibrin-cell-clots in vitro offers a standardized method for implantation.
10:25
Multimodal Imaging of Stem Cell Implantation in the Central Nervous System of Mice
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Cited by 11 •
2012
This article describes an optimized sequence of events for multimodal imaging of cellular grafts in rodent brain using: (i) in vivo bioluminescence and magnetic resonance imaging, and (ii) post mortem histological analysis. Combining these imaging modalities on a single animal allows cellular graft evaluation with high resolution, sensitivity and specificity.
FAQs
The matrix does more than hold transplanted cells in place: its three-dimensional organization creates a local setting in which attachment, survival, and cell behavior can occur together. By retaining cells at the intended site, it may improve delivery while allowing surrounding tissue to influence proliferation and differentiation. This coordination is central to designing implants for functional repair.
Biochemical and mechanical signals provide two complementary forms of instruction. Chemical cues can influence how cells behave, while physical properties of the matrix can also affect their responses. Because stem cells react to local conditions, researchers examine these signals together rather than treating the scaffold as passive support. This connects matrix design with the type and quality of tissue formation.
Cell retention changes the local relationship between transplanted cells and host tissue. Keeping cells near the damaged region gives them an opportunity to remain attached to the matrix, encounter site-specific conditions, and participate in coordinated repair. The concept therefore links delivery performance with biological response: an implant is evaluated not only for carrying cells, but also for supporting their subsequent activity.
Scaffold properties influence whether an implant supports functional tissue formation rather than merely cell placement. Researchers can relate the matrix's physical and biochemical features to cell attachment, survival, proliferation, and differentiation, then assess how those responses contribute to tissue organization. This makes the construct a controllable experimental system for examining links between material design and regenerative outcomes.
A study first combines stem cells with a supportive biomaterial matrix, then places the resulting construct at the intended implantation site. Subsequent analysis focuses on how well cells remain associated with the matrix, survive, attach, proliferate, or differentiate under local conditions. Researchers can then compare these cellular responses with evidence of tissue repair or regeneration.
Researchers investigate these implants when a project focuses on replacing damaged tissue, improving delivery of transplanted cells, or coordinating cell-host interactions. The approach is especially relevant when cell behavior depends on the local environment, because the matrix provides a defined setting for studying those relationships. Its use therefore spans therapeutic design and fundamental regenerative-biology research.
These constructs can reveal whether matrix characteristics are associated with cell survival and attachment, whether local conditions support proliferation or differentiation, and how transplanted cells interact with host tissue. At the tissue level, researchers examine whether those cellular processes contribute to repair, regeneration, or functional tissue formation. The results connect measurable cell behavior with the broader performance of an implant.