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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Bai, M. Yin, H. P. Li, S. W. Wang, Y. H. |
| Description | Country affiliation: China Author Affiliation: Bai M ( Department of Spinal Surgery, The Second Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China.); Wang YH ( Department of Gynecology and Obstetrics, The First Hospital of Hohhot City, Hohhot, Inner Mongolia, China.); Yin HP ( Department of Spinal Surgery, The Second Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China yinhpdmis@163.com.); Li SW ( Department of Spinal Surgery, The Second Hospital of Inner Mongolia Medical University, Hohhot, Inner Mongolia, China.) |
| Abstract | This study addressed the in vitro construction and biological activity of tissue engineered intervertebral discs with exogenous human dopamine beta-hydroxylase (DBH) nucleus pulposus cells. pSNAV2.0-DBH expression plasmids were utilized to enhance the survival rates of intervertebral disc tissue cells. Various concentrations of transfected nucleus pulposus cells were injected into the discs, and DBH mRNA expression was determined using polymerase chain reaction amplification. Polysaccharide content and total collagen protein content in the engineered disc nucleus pulposus tissue were determined. The visible fluorescence intensities of the 1 x 10(5) and 1 x 10(6) groups vs the 1 x 10(4) group were significantly increased (P < 0.05); no significant difference was observed between the 1 x 10(5) and 1 x 10(6) groups (P > 0.05) at 7 days after injection. DBH mRNA expression could be detected in the all but the EGFP control group at 14 days culture. No significant difference was observed in the protein content between the 1 x 10(4) and the control groups at various times, while the protein content was significantly higher in the 1 x 10(5) vs the control and the 1 x 10(4) groups at 7-, 14-, and 21-day cultures. These results demonstrate that a tissue engineered intervertebral disc with high biological activity can be constructed by utilizing allogeneic intervertebral discs stored in liquid nitrogen and a 1 x 10(5) transfected nucleus pulposus cell complex with in vitro culture for 14 days. This model can be used in animal experiments to study the biological activity of the engineered discs. |
| e-ISSN | 16765680 |
| Journal | Genetics and Molecular Research |
| Issue Number | 3 |
| Volume Number | 14 |
| Language | English |
| Publisher | Fundação de Pesquisas Científicas de Ribeirão Preto |
| Publisher Date | 2015-09-09 |
| Publisher Place | Brazil |
| Access Restriction | Open |
| Subject Keyword | Chondrocytes Transplantation Dopamine Beta-hydroxylase Genetics Intervertebral Disc Cytology Rna, Messenger Tissue Engineering Animals Metabolism Collagen Gene Expression Genes, Reporter Green Fluorescent Proteins Intervertebral Disc Degeneration Therapy Plasmids Chemistry Proteoglycans Tissue Culture Techniques Transfection Transgenes Transplantation, Homologous Discipline Genetics Discipline Molecular Biology Discipline Bioinformatics |
| Content Type | Text |
| Resource Type | Article |
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