All-trans retinoic acid-responsive genes identified in the human SH-SY5Y neuroblastoma cell line and their regulated expression in the nervous system of early embryos
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R.A. Merrill
Abstract
The vitamin A metabolite, all-trans retinoic acid (atRA), is required for embryonic development. atRA binds to the nuclear retinoic acid receptors and regulates the transcription of specific target genes. In order to identify atRA-induced genes that play a role in neural development, a subtractive library was created from SH-SY5Y neuroblastoma cells, a human cell line that exhibits changes in cell adhesion and neurite outgrowth after exposure to the vitamin A acid. We report here the identification of 14 genes that are rapidly induced by atRA (retinoic acid induced in neurobIlastoma or RAINB), eight of which were previously not known to be atRA responsive (BTBD11, calmin, cyclin M2, ephrin B2, HOXD10, NEDD9, RAINB6 and tenascin R). mRNA regulation by atRA was confirmed in SHSY5Y cells by Northern blotting, and gene regulation was studied in additional human cell lines using the quantitative polymerase chain reaction. The majority of the atRA-responsive clones revealed in this screen are highly expressed in the nervous system of developing rat embryos. Further, the expression of several of these genes is perturbed in developing rat embryos exposed to excess atRA or conversely, deprived of sufficient retinoid during early development. We propose that a subset of these genes lie downstream of atRA and its receptors in the regulation of neurite outgrowth and cell adhesion in both neural and nonneural tissues within the developing embryo.
Copyright © 2004 by Walter de Gruyter GmbH & Co. KG
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Articles in the same Issue
- 55th Mosbach Colloquium: How nutrients influence gene activity
- Nutrient-gene interactions: a single nutrient and hundreds of target genes
- Regulation of gene expression by α-tocopherol
- Linking nutrition to genomics
- Metal-responsive transcription factor (MTF-1) and heavy metal stress response in Drosophila and mammalian cells: a functional comparison
- All-trans retinoic acid-responsive genes identified in the human SH-SY5Y neuroblastoma cell line and their regulated expression in the nervous system of early embryos
- GAPDH enhances group II intron splicing in vitro
- Metal-responsive transcription factor-1 (MTF-1) selects different types of metal response elements at low vs. high zinc concentration
- Inactivation of protein disulfide isomerase by alkylators including α,β-unsaturated aldehydes at low physiological pHs
- Cell type-dependent release of nitric oxide and/or reactive nitrogenoxide species from intracellular SIN-1: effects on cellular NAD(P)H
- SMAD-signaling in chronic obstructive pulmonary disease: transcriptional down-regulation of inhibitory SMAD 6 and 7 by cigarette smoke
- Exogenously added GPI-anchored tissue inhibitor of matrix metalloproteinase-1 (TIMP-1) displays enhanced and novel biological activities
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