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Strontium Laminarin polysaccharide modulates osteogenesis-angiogenesis for bone regeneration
Fenbo Ma1, Yuanjun Zhang1, Liqiu Hu1
1Department of Biomedical Engineering, Southern University of Science and Technology, Shenzhen, Guangdong, PR China.
International Journal of Biological Macromolecules
|March 29, 2021
Summary
A novel strontium Laminarin polysaccharide (LP-Sr) complex effectively promotes bone regeneration by enhancing osteogenesis and angiogenesis. This compound also suppresses inflammation, showing promise for therapeutic applications.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Biochemistry
Background:
- Bone regeneration is a complex clinical challenge involving inflammation, angiogenesis, and osteogenesis.
- Developing novel therapeutic agents to modulate these processes is crucial for effective bone repair.
Purpose of the Study:
- To synthesize and characterize a novel polysaccharide-metal complex, strontium Laminarin polysaccharide (LP-Sr).
- To evaluate the potential of LP-Sr in promoting osteogenesis and angiogenesis for bone regeneration applications.
Main Methods:
- Synthesis and structural analysis of LP-Sr using techniques like EDS, XRD, FITR, 1H NMR, and HPLC.
- In vitro evaluation of LP-Sr's effects on cell proliferation, osteogenesis (ALP, Col1α1, OCN), angiogenesis (VEGF, EGFL6, CD31), and inflammation (IL6) in HUVECs and MC3T3-E1 cells.
Main Results:
- Successful synthesis and characterization of the novel LP-Sr complex.
- LP-Sr significantly promoted cell proliferation and upregulated key osteogenic markers (Col1α1, OCN) and angiogenic factors (VEGF, EGFL6) in relevant cell lines.
- LP-Sr demonstrated positive effects on osteogenic and angiogenic markers (ALP, CD31) and suppressed the pro-inflammatory factor IL6.
Conclusions:
- The synthesized LP-Sr complex shows significant potential for modulating osteogenesis and angiogenesis.
- LP-Sr is a promising novel agent for bone regeneration therapies due to its ability to enhance bone formation and vascularization while reducing inflammation.
