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Modification-based Pinus pumila polysaccharides and their effects on osteoblast MC3T3-E1
Hua Zhang1, Zhao-Yuan Feng2, Zhen-Zhou Li1
1Innovation Research Center for Special Food-Medicine and Biochemical Engineering, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, Heilongjiang, China.
International Journal of Biological Macromolecules
|January 30, 2025
Summary
A novel polysaccharide from Pinus pumila (PSP c-a) was modified to create Sr-PSP c-a-1. This new compound significantly enhanced osteoblast activity, showing potential for skeletal tissue regeneration.
Area of Science:
- Biochemistry
- Biomaterials Science
- Pharmacology
Background:
- Polysaccharides exhibit diverse biological activities.
- Pinus pumila polysaccharides are underexplored for therapeutic applications.
- Osteoblast proliferation is crucial for bone regeneration.
Purpose of the Study:
- To extract and characterize a novel polysaccharide (PSP c-a) from Pinus pumila.
- To synthesize and evaluate a modified strontium-containing complex (Sr-PSP c-a-1) for enhanced osteogenic effects.
- To compare the efficacy of PSP c-a and Sr-PSP c-a-1 on osteoblast MC3T3-E1 cells.
Main Methods:
- Biomimetic-microwave assisted alkali tandem extraction and purification (DEAE-52, Sephadex G-200).
- Structural characterization using HPGP, FTIR, IC, and NMR spectroscopy.
- Biological and chemical modification of PSP c-a with α-glucosidase and strontium (Sr).
Main Results:
- A novel polysaccharide (PSP c-a) with a defined backbone and branch structure was isolated.
- The modified complex Sr-PSP c-a-1 was successfully synthesized and found to be thermostable.
- Both PSP c-a and Sr-PSP c-a-1 promoted osteoblast MC3T3-E1 proliferation, with Sr-PSP c-a-1 demonstrating superior efficacy.
Conclusions:
- Sr-PSP c-a-1 exhibits enhanced osteogenic properties compared to native PSP c-a.
- Sr-PSP c-a-1 holds significant potential as a therapeutic agent for promoting skeletal tissue regeneration.
- Further investigation into Sr-PSP c-a-1 for bone defect repair is warranted.
