Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 110, Issue -, Pages 514-521Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijbiomac.2017.11.094
Keywords
Cissus quadrangularis; Electrospinning; Osteoinduction
Funding
- Department of Science and Technology, Government of India [SRNM: PG-01:2015]
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Cissus quadrangularis (CQ) is known as bone setter in Ayurvedic Medicine because of its ability to promote fracture healing. Polymers incorporated with CQ at lower concentration have shown to enhance osteogenic differentiation of mesenchymal stem cells (MSCs) in vitro. However, for the healing of clinically relevant critical sized bone defects, large amount of CQ would be required. Based on this perception, a herbal fibrous sheet containing high weight percentage of CQ [20,40 and 60 wt/wt% in poly (L-lactic acid) (PLLA)] was fabricated through electrospinning. The solution concentration, flow rate, voltage and tip-target distance was optimized to obtain nanofibers. The hydrophobicity of PLLA fibers was reduced through CQ incorporation. There was considerable increase in the adhesion, proliferation and osteogenic differentiation of MSCs on herbal fibers than normal fibers, mainly on P-Q20 and P-CQ40. MSCs were differentiated into osteoblasts without providing any osteogenic supplements in the medium, indicating its osteoinductive capability. The herbal sheet also could promote mineralization when immersed in simulated body fluid for 14 days. These studies specify that PLLA nanofibers loaded with 20 and 40 wt% of CQ could serve as a potential candidate for bone tissue engineering applications. (C) 2017 Elsevier B.V. All rights reserved.
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