Abstract:
:Tissue engineered tracheae have been successfully implanted to treat a small number of patients on compassionate grounds. The treatment has not become mainstream due to the time taken to produce the scaffold and the resultant financial costs. We have developed a method for decellularization (DC) based on vacuum technology, which when combined with an enzyme/detergent protocol significantly reduces the time required to create clinically suitable scaffolds. We have applied this technology to prepare porcine tracheal scaffolds and compared the results to scaffolds produced under normal atmospheric pressures. The principal outcome measures were the reduction in time (9 days to prepare the scaffold) followed by a reduction in residual DNA levels (DC no-vac: 137.8±48.82 ng/mg vs. DC vac 36.83±18.45 ng/mg, p<0.05.). Our approach did not impact on the collagen or glycosaminoglycan content or on the biomechanical properties of the scaffolds. We applied the vacuum technology to human tracheae, which, when implanted in vivo showed no significant adverse immunological response. The addition of a vacuum to a conventional decellularization protocol significantly reduces production time, whilst providing a suitable scaffold. This increases clinical utility and lowers production costs. To our knowledge this is the first time that vacuum assisted decellularization has been explored. Copyright © 2015 John Wiley & Sons, Ltd.
journal_name
J Tissue Eng Regen Medjournal_title
Journal of tissue engineering and regenerative medicineauthors
Lange P,Greco K,Partington L,Carvalho C,Oliani S,Birchall MA,Sibbons PD,Lowdell MW,Ansari Tdoi
10.1002/term.1979subject
Has Abstractpub_date
2017-03-01 00:00:00pages
800-811issue
3eissn
1932-6254issn
1932-7005journal_volume
11pub_type
杂志文章abstract::Cartilage defects heal imperfectly and osteoarthritic changes develop frequently as a result. Although the existence of specific behaviours of chondrocytes derived from various depth-related zones in vitro has been known for over 20 years, only a relatively small body of in vitro studies has been performed with zonal ...
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journal_title:Journal of tissue engineering and regenerative medicine
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更新日期:2009-03-01 00:00:00
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journal_title:Journal of tissue engineering and regenerative medicine
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journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
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更新日期:2020-05-01 00:00:00
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journal_title:Journal of tissue engineering and regenerative medicine
pub_type: 杂志文章
doi:10.1002/term.1797
更新日期:2015-08-01 00:00:00
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journal_title:Journal of tissue engineering and regenerative medicine
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journal_title:Journal of tissue engineering and regenerative medicine
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