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Influence of alkyl-phospholipids on the gene expression profile of immortalized keratinocytes HaCaT

ABSTRACT: New alkyl-phospholipids (APLs) that are structurally derived from the platelet-activating factor are promising candidates for anticancer treatment. After the incorporation into cell membranes, APLs are able to interfere with a wide variety of key enzymes implicated in cell growth, motility, invasion and apoptosis. Besides the prototype edelfosine, we presented a novel group of APLs, glycosidated phospholipids that efficiently inhibit cell proliferation. Two members of this group, Ino-C2-PAF and Glc-PAF, display high efficacy and low cytotoxicity in immortalized non-tumorigenic skin keratinocyte cell line HaCaT. However, the influence of APLs on the transcription of the whole genome is still unknown. Here, using Agilent cDNA microarray technology, we compared global gene expression profiles of HaCaT cells treated with edelfosine, Ino-C2-PAF or Glc-PAF with the profile of control cells.

ORGANISM(S): Homo sapiens

PROVIDER: GSE20722 | GEO | 2011/03/01

SECONDARY ACCESSION(S): PRJNA125067

REPOSITORIES: GEO

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Influence of alkyl-phospholipids on the gene expression profile of immortalized keratinocytes HaCaT

Project description:New alkyl-phospholipids (APLs) that are structurally derived from the platelet-activating factor are promising candidates for anticancer treatment. After the incorporation into cell membranes, APLs are able to interfere with a wide variety of key enzymes implicated in cell growth, motility, invasion and apoptosis. Besides the prototype edelfosine, we presented a novel group of APLs, glycosidated phospholipids that efficiently inhibit cell proliferation. Two members of this group, Ino-C2-PAF and Glc-PAF, display high efficacy and low cytotoxicity in immortalized non-tumorigenic skin keratinocyte cell line HaCaT. However, the influence of APLs on the transcription of the whole genome is still unknown. Here, using Agilent cDNA microarray technology, we compared global gene expression profiles of HaCaT cells treated with edelfosine, Ino-C2-PAF or Glc-PAF with the profile of control cells. The influence of APLs on the transcriptional profile of immortalized keratinocytes (HaCaT) was analyzed treating HaCaT cells with respectively 5 M-BM-5M Ino-C2-PAF, Glc-PAF and edelfosine for 24 h. Control cells were left untreated. Three independent experiments were performed for each condition.

2011-03-01 | E-GEOD-20722 | biostudies-arrayexpress

Impact of Ino-C2-PAF on the gene expression profile of HaCaT cells after stimulation with pro-inflammatory cytokines

2013-01-01 | GSE37361 | GEO

Impact of Ino-C2-PAF on the gene expression profile of HaCaT cells after stimulation with pro-inflammatory cytokines

Project description:New alkyl-phospholipids (APLs) that are structurally derived from the platelet-activating factor are promising candidates for anticancer treatment. After the incorporation into cell membranes, APLs are able to interfere with a wide variety of key enzymes implicated in cell growth, motility, invasion and apoptosis. Recently, using Agilent cDNA microarray technology, we could demonstrate that the glycosidated APL Ino-C2-PAF inhibited the expression of several genes associated with immune response and inflammation in immortalized keratinocytes HaCaT. Here, we analyzed the impact of Ino-C2-PAF on the gene expression profile of HaCaT cells treated with several pro-inflammatory cytokines (IL-1M-NM-1, IL-17, IL-22, TNF-M-NM-1 and oncostatin-M). The influence of Ino-C2-PAF on the transcriptional profile of immortalized keratinocytes (HaCaT) was analyzed treating HaCaT cells with 5 M-BM-5M Ino-C2-PAF in the presence of a mixture of pro-inflammatory cytokines (IL-1M-NM-1, IL-17, IL-22, TNF-M-NM-1 and oncostatin-M) for 24 h. Control cells were left untreated. Three independent experiments were performed for each condition, except for control cells where only two experiments were performed. Control cells were mainly necessary to demonstrate the efficiency of this in vitro inflammation model for keratinocytes.

2013-01-01 | E-GEOD-37361 | biostudies-arrayexpress

Homo sapiens

Project description:Impact of Ino-C2-PAF on the gene expression profile of HaCaT cells after stimulation with pro-inflammatory cytokines

| PRJNA159561 | ENA

Neutralization of Oxidized Phospholipids Restrains Nonalcoholic Steatohepatitis

Project description:Neutralization of Oxidized Phospholipids Restrains Nonalcoholic Steatohepatitis

| PRJNA575823 | ENA

Transcriptome analysis provides insights into the skeletal malformation induced by dietary phospholipids deficiency in largemouth bass (Micropterus salmoides) larvae

Project description:Largemouth bass is one of the most important freshwater aquaculture species in China. However, the mechanisms underlying the development of skeleton in the fish are unclear. High-throughput RNA-Seq was used to analyze the transcriptome of largemouth bass skeleton between high-phospholipids and low-phospholipids groups. Thirty individuals each from 3 high-phospholipids families and 3 low-phospholipids families were used to reduce inaccuracies. The results indicated that 255 up-regulated and 329 down-regulated genes were identified in the differentially expressed genes (DEGs). GO and KEGG enrichment analyses revealed the DEGs were involved in the MAPK signaling pathway, phosphatidylinositol signaling system, glycosphingolipid biosynthesis-lacto and neolacto series and fatty acid degradation. Twist2 and Daam1, genes related to osteoblast development, were up-regulated in high-phospholipids group. BGLAP, gene associated with the skeletal development and osteohormatology, was also up-regulated in high-phospholipids group. PCOLCE b, a gene related to the development of gristle, was up-regulated in high-phospholipids group. Higher expression of SCPP1 and SCPP7 in high-phospholipids group was associated with tooth and bone development. The trend changes in the above genes all indicate that the lack of phospholipids may affect the skeletal development through the above genes, increasing malformations. In summary, these results provide valuable information about the reduction of deformity rates in largemouth bass and contribute to our understanding of the molecular mechanisms and regulative pathways regulating skeletal growth in teleosts.

2023-08-18 | GSE241086 | GEO

Macrophage reprogramming by negatively-charged membrane phospholipids controls infection

Project description:Macrophage reprogramming by negatively-charged membrane phospholipids controls infection

| PRJNA475156 | ENA

Macrophage reprogramming by negatively-charged membrane phospholipids controls infection

Project description:Extracellular vesicles (ECV) are heterogeneous membrane-enclosed structures containing proteins, nucleic acids and lipids that participate in intercellular communication by transferring their content to recipient cells. Although most of the attention has been directed at the biological effect of proteins and microRNA, the contribution of phospholipids present in ECV on cellular activation has not been extensively addressed. Here we investigated the biological effect of phosphatidylserine (PS) and phosphatidylcholine (PC), two phospholipids highly abundant in ECV. A transcriptomic analysis revealed that about 4,700 genes were specifically modified by exposing peritoneal macrophages to PS or PC liposomes in vivo. Among them, the expression of several chemokines and cytokines was highly upregulated by PS liposome treatment, translating into a massive neutrophil infiltration into the peritoneum capable of neutralizing a septic polymicrobial insult. Both the L and D stereoisomers of PS induced the same response, suggesting that the effect was related to the negative charge of the phospholipid head. We concluded that an increase in the internal negative charge of the cell triggers a signaling cascade activating an innate immune response capable of controlling infection.

2018-11-02 | GSE115489 | GEO

Expression data from stimulated or unstimulated human CD4+ T cells incubated with edelfosine

Project description:The cytotoxic drug edelfosine is a synthetic analog of 2-lysophosphatidylcholine. Edelfosine is incorporated by highly proliferating cells, e.g. activated immune cells. It is unknown if the described mechanisms for edelfosine action attained by in vitro approaches exclusively contribute to the observed EAE-amelioration or if edelfosine may exert additional, probably more general and possibly immunoablative effects within the setting of autoimmunity. We used microarray analysis in order to confirm proposed mechanisms of edelfosine action, but also to discover novel effects of edelfosine in the context of immune cells.

2014-05-06 | GSE44392 | GEO

Neutralization of Oxidized Phospholipids Restrains Nonalcoholic Steatohepatitis

Project description:Oxidized phospholipids (OxPL) are pro-inflammatory and pro-atherogenic, but their roles in non-alcoholic steatohepatitis (NASH) are unknown. Here, we show that OxPL accumulate in human and murine NASH. Using a transgenic mouse that expresses a functional single chain variable fragment of E06, a natural antibody that neutralizes OxPL, we demonstrate the casual role of OxPL in NASH. Targeting OxPL in hyperlipidemic Ldlr-/- mice decreased multiple aspects of NASH, including steatosis, inflammation, fibrosis, hepatocyte death and progression to hepatocellular carcinoma. Mechanistically, we found that OxPL promote ROS accumulation to induce mitochondrial dysfunction in hepatocytes. Neutralizing OxPL in AMLN diet-fed Ldlr-/- mice reduced oxidative stress, improved hepatic and adipose tissue mitochondrial function and fatty acid oxidation. Since neutralizing OxPL also protects against atherogenesis, targeting OxPL may be an effective therapeutic strategy for both NASH and atherosclerosis.

2019-11-04 | GSE138419 | GEO

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