alexa Enhanced Volume of Stem Cell-Based Regenerated Tissue A
ISSN: 2157-7552

Journal of Tissue Science & Engineering
Open Access

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Research Article

Enhanced Volume of Stem Cell-Based Regenerated Tissue Achieved by Altering Microenvironment and Cell Seeding Strategies

Ricardo A Rosselló1,2,4* and David H Kohn2,3

1Departments of Biochemistry, University of Puerto Rico, Medical Sciences Campus, San Juan, Puerto Rico

2Departments of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA

3Departments of Biologic and Materials Sciences, University of Michigan, Ann Arbor, MI, USA

4Department of Science and Technology, Metropolitan University, San Juan, Puerto Rico

Corresponding Author:
Ricardo A Rossello
Department of Biochemistry
University of Puerto Rico
Medical Sciences Campus, San Juan, Puerto Rico
Tel: +1 787-754-0101
E-mail: [email protected]

Received date: October 27, 2013; Accepted date: April 20, 2014; Published date: April 23, 2014

Citation: Rosselló RA, Kohn DH (2014) Enhanced Volume of Stem Cell-Based Regenerated Tissue Achieved by Altering Microenvironment and Cell Seeding Strategies. J Tissue Sci Eng S1:005. doi:10.4172/2157-7552.S1-005

Copyright: © 2014 Rosselló AR, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

Tissue engineering has emerged as a potential alternative or complementary solution to organ failure or damage. Adult stem cell based approaches can provide a powerful platform for regeneration, given these cells capacity to differentiate into multiple tissues, given the appropriate signals. However, a barrier in the development of tissue in 3D constructs is the transport limitations of nutrients and by products to the core, producing low volumes of regenerated tissue. The microenvironment in the immediate vicinity of the cells, the number of cells that adhere to the substrate and their localization may play an important role in differentiation and tissue regeneration. In this study, we aim to overcome compromised development of hard tissue using 3D cell-based tissue engineering strategies. Specifically, we quantified the effect of a biomimetic template and cell seeding techniques in Gap Junction Intercellular Communication (GJIC), differentiation (Osteocalcin and Alkaline Phosphatase mRNA) In-vitro and bone volume fraction (In-vivo) of adult stem cells (Bone Marrow Stromal Cells) seeded in 3D rigid scaffolds. Significant increases in amount and distribution of bone were achieved when altering both the template and initial seeding conditions. Our findings indicate that creating a biomimetic environment and altering initial seeding conditions that enhance cell adhesion and cell-cell communication in rigid scaffolds are powerful strategies to overcome the incomplete regeneration of cell-based engineered tissue.

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