Silicone Substrate with Collagen and Carbon Nanotubes Exposed to Pulsed Current for MSC Osteodifferentiation
Joint Authors
Jamal, Daniyal
de Guzman, Roche C.
Source
International Journal of Biomaterials
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-08-23
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Autologous human adipose tissue-derived mesenchymal stem cells (MSCs) have the potential for clinical translation through their induction into osteoblasts for regeneration.
Bone healing can be driven by biophysical stimulation using electricity for activating quiescent adult stem cells.
It is hypothesized that application of electric current will enhance their osteogenic differentiation, and addition of conductive carbon nanotubes (CNTs) to the cell substrate will provide increased efficiency in current transmission.
Cultured MSCs were seeded and grown onto fabricated silicone-based composites containing collagen and CNT fibers.
Chemical inducers, namely, glycerol phosphate, dexamethasone, and vitamin C, were then added to the medium, and pulsatile submilliampere electrical currents (about half mA for 5 cycles at 4 mHz, twice a week) were applied for two weeks.
Calcium deposition indicative of MSC differentiation and osteoblastic activity was quantified through Alizarin Red S and spectroscopy.
It was found that pulsed current significantly increased osteodifferentiation on silicone-collagen films without CNTs.
Under no external current, the presence of 10% (m/m) CNTs led to a significant and almost triple upregulation of calcium deposition.
Both CNTs and current parameters did not appear to be synergistic.
These conditions of enhanced osteoblastic activities may further be explored ultimately towards future therapeutic use of MSCs.
American Psychological Association (APA)
Jamal, Daniyal& de Guzman, Roche C.. 2017. Silicone Substrate with Collagen and Carbon Nanotubes Exposed to Pulsed Current for MSC Osteodifferentiation. International Journal of Biomaterials،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1160075
Modern Language Association (MLA)
Jamal, Daniyal& de Guzman, Roche C.. Silicone Substrate with Collagen and Carbon Nanotubes Exposed to Pulsed Current for MSC Osteodifferentiation. International Journal of Biomaterials No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1160075
American Medical Association (AMA)
Jamal, Daniyal& de Guzman, Roche C.. Silicone Substrate with Collagen and Carbon Nanotubes Exposed to Pulsed Current for MSC Osteodifferentiation. International Journal of Biomaterials. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1160075
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1160075