Abstract
The biomaterial bacterial cellulose (BC) represents an innovative approach for overcoming reconstructive problems associated with extended vascular diseases by providing small caliber vascular grafts (diameter 1.0–3.7, length 5.0–10.0, and wall-thickness 0.7 mm). In a first microsurgical study, the BC implants were attached in an artificial defect of the carotid artery of rats for 1 year. These long term results show the incorporation of the BC under formation of neointima and ingrowth of active fibroblasts. In a second study, the grafts were used to replace the carotid arteries of pigs. After 3 months, these grafts were removed and analyzed both macro- and microscopically. Seven grafts (87.5%) were patent whereas one graft was found occluded. These data indicate that the innovative BC engineering technique results in the production of stable vascular conduits and confirm a highly attractive approach to in vivo tissue engineered blood vessels as part of programs in cardiovascular surgery.
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Abbreviations
- BC:
-
Bacterial cellulose
- BASYC:
-
Bacterially synthesized cellulose
- LSM:
-
Confocal laser scanning microscopy
- ePTFE:
-
Expanded polytetrafluoroethylene
- SEM:
-
Scanning electron microscopy
- SMC:
-
Smooth muscle cell
- TEM:
-
Transmission electron microscopy
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Schumann, D.A., Wippermann, J., Klemm, D.O. et al. Artificial vascular implants from bacterial cellulose: preliminary results of small arterial substitutes. Cellulose 16, 877–885 (2009). https://doi.org/10.1007/s10570-008-9264-y
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DOI: https://doi.org/10.1007/s10570-008-9264-y