Humic substances from composted fennel residues control the inflammation induced by Helicobacter pylori infection in AGS cells.
Mariavittoria VerrilloPaola CuomoAngela Michela Immacolata MontoneDavide SavyRiccardo SpacciniRosanna CapparelliAlessandro PiccoloPublished in: PloS one (2023)
Helicobacter pylori (H. pylori) is a common human pathogen causing inflammation. Recent studies have suggested a sophisticated interplay between mitochondria, innate immunity and inflammatory response, thus proposing mitochondrial disfunction as the hallmark of severe inflammatory disorders. In this study, humic substances isolated from composted fennel residues (HS-FEN) were tested as potential therapeutical strategy to restore the mitochondrial physiology and control the inflammation associated with H. pylori infection. The molecular features of HS-FEN were characterized by infrared spectrometry, thermochemolysis-GC/MS, NMR spectroscopy, and high-performance size-exclusion chromatography (HPSEC), which revealed the presence of aromatic polyphenolic components arranged in a rather stable conformation. In vitro results showed antioxidant and anti-inflammatory properties of HS-FEN, that was found to increase the expression level of OPA-1 and SOD-2 genes and in AGS cells stimulated with H. pylori culture filtrate (Hpcf) and concomitantly decrease the expression level of Drp-1 gene and IL-12, IL-17 and G-CSF proteins. The hydrophobic features of HS, their conformational arrangement and large content of bioactive molecules may explain the beneficial effects of HS-FEN, that may potentially become an interesting source of anti-inflammatory agents capable to counteract or prevent the H. pylori-related inflammatory disorders.
Keyphrases
- oxidative stress
- induced apoptosis
- helicobacter pylori
- helicobacter pylori infection
- anti inflammatory
- inflammatory response
- poor prognosis
- cell cycle arrest
- endothelial cells
- molecular dynamics simulations
- genome wide
- high resolution
- cell death
- drinking water
- endoplasmic reticulum stress
- immune response
- mass spectrometry
- signaling pathway
- long non coding rna
- binding protein
- single molecule
- single cell
- gene expression
- candida albicans
- liquid chromatography
- risk assessment
- ionic liquid
- high performance liquid chromatography
- genome wide analysis
- ms ms
- aqueous solution
- toll like receptor