Structural Characterization of Polygonatum Cyrtonema Polysaccharide and Its Immunomodulatory Effects on Macrophages.

Molecules

TCM and Ethnomedicine Innovation & Development International Laboratory, School of Pharmacy, Hunan University of Chinese Medicine, Changsha 410208, China.

Published: April 2024

AI Article Synopsis

  • A neutral polysaccharide (NPCP) was isolated using various chromatographic techniques and characterized through methods like HPLC and NMR, revealing its composition of glucose and galactose with a molecular weight of 3.2 kDa.
  • In vitro tests showed that NPCP boosts macrophage activity, enhancing their proliferation and phagocytosis, while also regulating inflammation by inhibiting M1 and M2 polarization and promoting anti-inflammatory cytokine IL-10.
  • These findings suggest that NPCP has potential as an immunomodulatory agent, which could be useful in developing anti-inflammatory therapies.

Article Abstract

A neutral polysaccharide (NPCP) was isolated and purified from by various chromatographic techniques, including DEAE-52 and Sephadex-G100 chromatography. The structure of NPCP was characterized by HPLC, HPGPC, GC-MS, FT-IR, NMR, and SEM. Results showed that NPCP is composed of glucose (55.4%) and galactose (44.6%) with a molecular weight of 3.2 kDa, and the sugar chain of NPCP was →1)-α-D-Glc-(4→1)-β-D-Gal-(3→. In vitro bioactivity experiments demonstrated that NPCP significantly enhanced macrophages proliferation and phagocytosis while inhibiting the M1 polarization induced by LPS as well as the M2 polarization induced by IL-4 and IL-13 in macrophages. Additionally, NPCP suppressed the secretion of IL-6 and TNF-α in both M1 and M2 cells but promoted the secretion of IL-10. These results suggest that NPCP could serve as an immunomodulatory agent with potential applications in anti-inflammatory therapy.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11085417PMC
http://dx.doi.org/10.3390/molecules29092076DOI Listing

Publication Analysis

Top Keywords

polarization induced
8
npcp
7
structural characterization
4
characterization polygonatum
4
polygonatum cyrtonema
4
cyrtonema polysaccharide
4
polysaccharide immunomodulatory
4
immunomodulatory effects
4
effects macrophages
4
macrophages neutral
4

Similar Publications

Background: Chemotherapy drugs may lead to hepatic injury, which is considered one of the limitations of these drugs.

Objectives: The aim of this study was to evaluate the effect of quercetin (QUE) on M1/M2 macrophage polarization and hepatoprotective effect in cyclophosphamide (CTX)-induced liver toxicity.

Methods: Twenty-four mice were divided into four groups (Control, QUE, CTX, CTX + QUE).

View Article and Find Full Text PDF

(PA) is an opportunistic gram-negative pathogen that can infect the cornea, leading to permanent vision loss. Autophagy is a cannibalistic process that drives cytoplasmic components to the lysosome for degradation and/or recycling. Autophagy has been shown to play a key role in the removal of intracellular pathogens and, as such, is an important component of the innate immune response.

View Article and Find Full Text PDF

Understanding the interplay between the molecular structure of the ionic liquid (IL) subunit, the resulting nanostructure and ion transport in polymerized ionic liquids (PILs) is necessary for the realization of high-performance solid-state electrolytes required in various advanced applications. Herein, we present a detailed structural characterization of a recently synthesized series of acrylate-based PIL homopolymers and networks with imidazolium cations and chloride anions with varying alkyl spacer and terminal group lengths designed for organic solid-state batteries based on X-ray scattering. The impact of the concentrations of both the crosslinker and added tetrabutylammonium chloride (TBACl) conducting salt on the structural characteristics is also investigated.

View Article and Find Full Text PDF

In neurons, the acquisition of a polarized morphology is achieved upon the outgrowth of a single axon from one of several neurites. Small extracellular vesicles (sEVs), such as exosomes, from diverse sources are known to promote neurite outgrowth and thus may have therapeutic potential. However, the effect of fibroblast-derived exosomes on axon elongation in neurons of the central nervous system under growth-permissive conditions remains unclear.

View Article and Find Full Text PDF

Background: Neuroinflammation is one of the essential pathogeneses of cognitive damage suffering from sepsis-associated encephalopathy (SAE). Lots of evidences showed the microglia presented mitochondrial fragmentation during SAE. This study investigated the protective effects and novel mechanisms of inhibiting microglia mitochondrial fragmentation via mitochondrial division inhibitor 1 (Mdivi-1) on cognitive damage in SAE.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!