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Abnormal inflammatory traits and downregulated caveolin-1 expression in monocytes of psoriasis patients may relate to psoriatic inflammation and atherosclerosis.

ABSTRACT: Abnormal inflammatory traits and downregulated caveolin-1 expression in monocytes of psoriasis patients may relate to psoriatic inflammation and atherosclerosis.

PROVIDER: PRJNA838204 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR19213749_1.fastq.gz	Fastqsanger.gz
	SRR19213749_2.fastq.gz	Fastqsanger.gz
	SRR19213750_1.fastq.gz	Fastqsanger.gz
	SRR19213750_2.fastq.gz	Fastqsanger.gz
	SRR19213751_1.fastq.gz	Fastqsanger.gz

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Project description:Background: Monocytes and macrophages are implicated in inflammation and atherosclerosis, whereas monocytes are involved in psoriasis lesion formation. We previously reported a psoriatic inflammation-associated significant decrease in the membrane protein caveolin-1 (CAV-1) in psoriasis patient monocytes. However, the phenotype of circulating monocytes and their macrophage differentiation in psoriasis patients remain unclear. Objective: We sought to clarify circulating monocyte and monocyte-derived macrophage (MDM) phenotypes in psoriasis patients with and without comorbidities. Method: Thirty-one patients with psoriasis vulgaris and 28 control subjects were included. Surface macrophage markers and inflammatory status were examined in circulating monocytes and MDMs from both groups. Expression of CD36, which mediates macrophage uptake of oxidized low-density lipoprotein (oxLDL), was evaluated in these cells. CAV-1-silenced monocytes were differentiated into macrophages to investigate the effects of CAV-1 downregulation on psoriatic inflammation and atherosclerosis. Results: Macrophage surface markers were detectable in circulating monocytes. A significant M1 shift was detected in monocytes and MDMs in psoriasis patients, including those without cardiovascular disease risk factors, as compared to controls. MDMs of psoriasis patients had more CD36-expressing cells, which are associated with atherosclerosis risk. Additionally, CAV-1-silencing in monocytes increased the likelihood of M1-biased macrophage differentiation and increased pro-inflammatory cytokine production. Conclusions: Monocytes from psoriasis patients were more likely to differentiate into M1-dominant macrophages, correlating with inflammatory status and CAV-1 expression. These aberrant inflammatory monocytes not only contribute to psoriatic inflammation by producing psoriatic cytokines, but also have a phenotype that could increase atherosclerosis risk by uptake of oxLDL and formation of foam cells.

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Abnormal inflammatory traits and downregulated caveolin-1 expression in monocytes of psoriasis patients may relate to psoriatic inflammation and atherosclerosis.

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