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Related Experiment Video

Updated: May 30, 2025

Isolation of Mesenchymal Stem Cells from Human Alveolar Periosteum and Effects of Vitamin D on Osteogenic Activity of Periosteum-derived Cells
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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
PubMed
Summary
This summary is machine-generated.

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.

Keywords:
Osteoblast MC3T3-E1Pinus pumilaPolysaccharidesSrStructural characterization

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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.