Human serum-derived hydroxy long-chain fatty acids exhibit anti-inflammatory and anti-proliferative activity.
Bottom Line: Enriched fractions resulted in poly-ADP ribose polymerase (PARP) cleavage, suppression of NFκB, induction of IκBα, and reduction in NOS2 mRNA transcript levels.Our results show that human serum extracts enriched with endogenous long-chain hydroxy fatty acids possess anti-inflammatory and anti-proliferative activity.These findings support a hypothesis that the reduction of these metabolites with age may result in a compromised ability to defend against uncontrolled cell growth and inflammation, and could therefore represent a significant risk for the development of CRC.
Affiliation: Phenomenome Discoveries, Inc, Saskatoon, Saskatchewan, Canada. firstname.lastname@example.orgShow MeSH
Related in: MedlinePlus
Mentions: We first determined whether crude serum ethyl acetate extract, prior to chromatographic enrichment of GTAs, would have any effect on cellular growth by treating cells with commercially available bulk human serum extracts (see methods). The total ion chromatogram (TIC) of the organic fraction following HPLC-coupled time-of-flight (TOF) mass spectrometry is shown in Figure 1A. The extracted mass spectra of the complete TIC is shown in Figure 1B, which was dominated by various free fatty acids but contained detectable levels of GTAs including those with masses of 446 (C28H46O4), 448 (C28H48O4) and 450 (C28H50O4) Da (Figures 1B and 1C). By calculating the peak areas of the three chromatograms, we estimated that these three GTAs represented no more than 0.15% of the total ion current in the sample. Incubation of SW620 cells with up to 80 ug/ml of the extract for 48 hours showed no effect on cell proliferation (Figure 1D) or any effects on cell morphology as assessed by light microscopy (not shown).
Affiliation: Phenomenome Discoveries, Inc, Saskatoon, Saskatchewan, Canada. email@example.com