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Principles of Tissue Engineering and Reconstruction Using Polymer-Cell Constructs

Published online by Cambridge University Press:  15 February 2011

David J. Mooney ,
Linda Cima ,
Robert Langer ,
Lynt Johnson ,
Linda K. Hansen ,
Donald E. Ingber  and
Joseph P. Vacant
David J. Mooney
Affiliation:
Dept. of Chemical Engineering, MIT, Cambridge, MA, 02139
Linda Cima
Affiliation:
Dept. of Chemical Engineering, MIT, Cambridge, MA, 02139
Robert Langer
Affiliation:
Dept. of Chemical Engineering, MIT, Cambridge, MA, 02139
Lynt Johnson
Affiliation:
Depts. of Surgical Research and Pathology, Children's Hospital and Harvard Medical School, Boston, MA, 02115
Linda K. Hansen
Affiliation:
Depts. of Surgical Research and Pathology, Children's Hospital and Harvard Medical School, Boston, MA, 02115
Donald E. Ingber
Affiliation:
Depts. of Surgical Research and Pathology, Children's Hospital and Harvard Medical School, Boston, MA, 02115
Joseph P. Vacant
Affiliation:
Depts. of Surgical Research and Pathology, Children's Hospital and Harvard Medical School, Boston, MA, 02115
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Abstract

The fields of materials science, cell and molecular biology, and surgical reconstruction are merging to create new devices for surgical transplantation and reconstructive applications. The field of artificial devices for implantation has matured over the last 40 years. Likewise, the field of transplantation and tissue reconstruction has undergone enormous change and improvements over the last 30 years. It has been proposed that these fields merge to create new tissue substitutes for functional replacement, therapy or reconstructive applications. Over the last five years, our lab has experimented with the concept of using man-made, biodegradable polymer systems as scaffolding for cell implantation devices. They have been designed to maximize diffusion parameters allowing nutrient exchange, gas exchange, and waste exchange. Vascular ingrowth occurs in the implant with subsequent resorption of the original polymer. This leaves a permanently engrafted new tissue which is a chimera of donor cells for functional replacement and recipient mesenchymal elements including blood vessels and supporting tissue. We have experimented in several model systems including hepatocyte implants, chondrocyte implants for cartilage reconstruction, urethelial implants for urinary reconstruction, and more recently small bowel and bone. Across this broad front of tissue types, much new knowledge has been gained and there continues to be hope that this will achieve clinical application.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 252: Symposium T – Tissue-Inducing Biomaterials , 1991 , 345
Copyright
Copyright © Materials Research Society 1992

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References

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