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Cartilage Tissue Engineering Using Thyroid Chondrocytes on a Type I Collagen Matrix
Author(s) -
Wambach Beth A.,
Cheung Herman,
Josephson Gary D.
Publication year - 2000
Publication title -
the laryngoscope
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.181
H-Index - 148
eISSN - 1531-4995
pISSN - 0023-852X
DOI - 10.1097/00005537-200012000-00005
Subject(s) - cartilage , tissue engineering , chondrocyte , matrix (chemical analysis) , chondrogenesis , thyroid cartilage , type ii collagen , scaffold , biomedical engineering , limiting , collagen, type i, alpha 1 , extracellular matrix , anatomy , chemistry , microbiology and biotechnology , materials science , medicine , biology , engineering , larynx , composite material , mechanical engineering
Objective/Hypothesis Reconstructive procedures of the head and neck often require materials that offer long‐term structural support. A problem that many surgeons have encountered is identifying a material that offers this support without rejection of the implanted material. This has led many surgeons to prefer autologous cartilage. However, autologous cartilage is of limited supply. Cartilage tissue engineering has become a new modality that allows investigators to harvest a small piece of cartilage and extract its chondrocytes for expansion in culture. These chondrocytes are applied to a matrix that will act as a scaffold and allow for cartilage growth. Finding a compatible matrix seems to be the limiting step in the progress of this research. We describe a new approach of tissue creation using bovine collagen matrices as templates onto which cells are seeded. Study Design Laboratory research. Methods Chondrocytes obtained from thyroid cartilage of dogs were seeded onto bovine collagen type I matrices and grown in vitro. Chondrocyte seeded matrices were evaluated histologically. Results Thyroid chondrocytes expressed themselves phenotypically by producing type II collagen in the presence of this type I collagen matrix. Conclusions This study offers the preliminary findings on an exciting new type of matrix worth exploring in the ability to successfully engineer cartilage.