ArticleCancer medicine2022
Understanding modulations of lipid mediators in cancer using a murine model of carcinomatous peritonitis.
Article in Cancer medicine, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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4 citing papers in PubMed, 8 citations in OpenAlex.
- Causal relationship between the plasma lipidome and urological cancers: A two-sample Mendelian randomization study.Medicine · 2025Article
- From Classical to Alternative Pathways of 2-Arachidonoylglycerol Synthesis: AlterAGs at the Crossroad of Endocannabinoid and Lysophospholipid Signaling.Molecules (Basel, Switzerland) · 2024Review
- Understanding modulations of lipid mediators in cancer using a murine model of carcinomatous peritonitis.Cancer medicine · 2022Article
- Modulations of bioactive lipids and their receptors in postmortem Alzheimer's disease brains.Frontiers in aging neuroscience · 2022Article
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Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundNumerous studies have investigated the possible involvement of eicosanoids, lysophospholipids, and sphingolipids in cancer. We considered that comprehensive measurement of these lipid mediators might provide a better understanding of their involvement in the pathogenesis of cancer. In the present study, we attempted to elucidate the modulations of sphingolipids, lysophospholipids, diacyl-phospholipids, eicosanoids, and related mediators in cancer by measuring their levels simultaneously by a liquid chromatography-mass spectrometry method in a mouse model of carcinomatous peritonitis.
methodsWe investigated the modulations of these lipids in both ascitic fluid and plasma specimens obtained from Balb/c mice injected intraperitoneally with Colon-26 cells, as well as the modulations of the lipid contents in the cancer cells obtained from the tumor xenografts.
resultsThe results were as follows: the levels of sphingosine 1-phosphate were increased, while those of lysophosphatidic acid (LysoPA), especially unsaturated long-chain LysoPA, tended to be increased, in the ascitic fluid. Our findings suggested that ceramides, sphingomyelin, and phosphatidylcholine, their precursors, were supplied by both de novo synthesis and from elsewhere in the body. The levels of lysophosphatidylserine (LysoPS), lysophosphatidylinositol, lysophosphatidylglycerol, and lysophosphatidylethanolamine were also increased in the ascitic fluid, while those of phosphatidylserine (PS), a precursor of LysoPS, were markedly decreased. The levels of arachidonic acid derivatives, especially PGE2-related metabolites, were increased, while the plasma levels of eicosanoids and related mediators were decreased. Comprehensive statistical analyses mainly identified PS in the ascitic fluid and eicosanoids in the plasma as having highly negative predictive values for cancer.
conclusionsThe results proposed many unknown associations of lipid mediators with cancer, underscoring the need for further studies. In particular, the PS/LysoPS pathway could be a novel therapeutic target, and plasma eicosanoids could be useful biomarkers for cancer.
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