ArticleExperimental cell research2004
Retinoic acid regulates cell cycle progression and cell differentiation in human monocytic THP-1 cells.
Article in Experimental cell research, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 1 of them a synthesis that pooled it.
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Who cites it
55 citing papers in PubMed, 1 synthesis or guideline pooled it, 108 citations in OpenAlex.
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- Identification of differentially expressed genes and SNPs linked to harvest body weight of genetically improved rohu carp,Frontiers in genetics · 2023Article
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- P450 oxidoreductase regulates barrier maturation by mediating retinoic acid metabolism in a model of the human BBB.Stem cell reports · 2022Article
- Evaluation of Adverse Effects of Resorbable Hyaluronic Acid Fillers: Determination of Macrophage Responses.International journal of molecular sciences · 2022Article
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Corrections and comments
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Authors and funding
2 authors at 1 institution in 1 country.
Funding
Abstract
All-trans-retinoic acid (RA), a natural metabolite of retinol, carries out most of the biological activities of vitamin A and is required for normal growth, cell differentiation, and immune functions. In the present studies, THP-1 human monocytes were used to investigate the mechanisms by which RA may regulate progression through the G1/S phase of the cell cycle. Physiological concentrations of all-trans-RA reduced the levels of cyclin E mRNA by 6 h and reduced cyclin E protein in a dose- and time-dependent manner. Similar reductions were observed for the retinoic acid receptor RARalpha and RXRalpha proteins. Concomitantly, RA increased the level of the cyclin-dependent kinase inhibitor p27 (Kip-1). The levels of retinoblastoma mRNA and protein (pRb) were also increased, while the proportion of hyperphosphorylated (phosphoserine 807/811) pRb was markedly reduced. Overall, RA increased the functionality of pRb as an inhibitor of cell cycle progression. Furthermore, RA reduced the binding activity of the transcription factor E2F to its core DNA element. Retinoic acid-induced changes in cell cycle-related proteins occurred in 4-6 h, including reduced cyclin E expression in bromodeoxyuridine (BrdU)-labeled cells, before the onset of cell differentiation as indicated by an increase in the percentage of G1 phase cells and a reduction in S phase cells at 24 h. The expression of CD11b, a cell surface marker of macrophage-like differentiation was increased by RA, as was phagocytic activity. The multiple effects of RA on cell cycle progression may help to explain its well-documented ability to induce the differentiation of THP-1 cells, and thereby to enhance macrophage-like immune functions.
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Registered trials
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