Results 301 to 310 of about 146,563 (345)
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Retinoic Acid Receptors in Hematopoiesis
1996Retinoic acid receptors (RARs) are critical transcriptional regulators that are involved in the development and differentiation of a wide variety of different cells (Evans 1988). Several lines of evidence suggest that RARs may be involved in the regulation of hematopoiesis.
S J, Collins, S, Tsai, I, Bernstein
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1995
Retinoids, a class of hydrophobic compounds including retinol (vitamin A), retinoic acid (RA) and a series of natural and synthetic derivatives, exhibit a vast array of profound and diverse effects on vertebrate development from early embryogenesis to maturity.
Marie Keaveney, Hendrik G. Stunnenberg
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Retinoids, a class of hydrophobic compounds including retinol (vitamin A), retinoic acid (RA) and a series of natural and synthetic derivatives, exhibit a vast array of profound and diverse effects on vertebrate development from early embryogenesis to maturity.
Marie Keaveney, Hendrik G. Stunnenberg
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Transcriptional Activities of Retinoic Acid Receptors
2005Vitamin A derivatives plays a crucial role in embryonic development, as demonstrated by the teratogenic effect of either an excess or a deficiency in vitamin A. Retinoid effects extend however beyond embryonic development, and tissue homeostasis, lipid metabolism, cellular differentiation and proliferation are in part controlled through the retinoid ...
Lefebvre, P. +5 more
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Retinoic acid and its receptors
The American Journal of Surgery, 1993Retinoic acid (RA)--the active metabolite of vitamin A--and its analogues have pleiotropic effects on growth, differentiation, proliferation, and development. RA, and its analogues, determine embryonic pattern formation and inhibit tumor growth; however, they are also teratogens.
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Retinoids, Retinoic Acid Receptors, and Cancer
Annual Review of Pathology: Mechanisms of Disease, 2011Retinoids (i.e., vitamin A, all-trans retinoic acid, and related signaling molecules) induce the differentiation of various types of stem cells. Nuclear retinoic acid receptors mediate most but not all of the effects of retinoids. Retinoid signaling is often compromised early in carcinogenesis, which suggests that a reduction in retinoid signaling may ...
Xiao-Han, Tang, Lorraine J, Gudas
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Dominant negative retinoic acid receptor β
Mechanisms of Development, 1993Induction of the retinoic acid receptor beta 2 (RAR beta 2) gene by retinoic acid (RA) is mediated by a RA response element (RARE), which represents a high affinity binding site for RAR/RXR heterodimers acting at this site as RA-inducible transcription activators.
S, Shen, P T, van der Saag, W, Kruijer
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Retinoic Acid Receptor Alpha Amplifications and Retinoic Acid Sensitivity in Breast Cancers
Clinical Breast Cancer, 2013Molecular segmentation of breast cancer allows identification of small groups of patients who present high sensitivity to targeted agents. A patient, with chemo- and trastuzumab-resistant HER2-overexpressing breast cancer, who presented concomitant acute promyelocytic leukemia, showed a response in her breast lesions to retinoic acid, arsenic, and ...
S. Alsafadi +13 more
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Nuclear retinoic acid receptors: Conductors of the retinoic acid symphony during development
Molecular and Cellular Endocrinology, 2012The vitamin A derivative, retinoic acid (RA), is essential for embryonic development through the activation of cognate nuclear receptors, RARs, which work as ligand dependent regulators of transcription. In vitro studies revealed how RARs control gene expression at the molecular level and now it appears that it is fine-tuned by a phosphorylation code ...
Samarut, Eric, Rochette-Egly, Cécile
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2015
Three retinoic acid receptors (RAR), structurally homologous to steroid and thyroid hormone nuclear receptors, have recently been cloned. Analysis of the tissue distribution of RARs mRNAs have demonstrated a distinct expression pattern of the receptors' transcripts. Moreover, the RAR beta gene specifically, is autoregulated by RA.
Hugues de Th�, Anne Dejean
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Three retinoic acid receptors (RAR), structurally homologous to steroid and thyroid hormone nuclear receptors, have recently been cloned. Analysis of the tissue distribution of RARs mRNAs have demonstrated a distinct expression pattern of the receptors' transcripts. Moreover, the RAR beta gene specifically, is autoregulated by RA.
Hugues de Th�, Anne Dejean
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Retinoic Acid Nuclear Receptors
1991The pleiotropic effects that RA exerts during vertebrate development have been studied in a number of experimental systems. For example, retinoic acid (RA) is thought to be the morphogen released by the zone of polarizing activity (ZPA) in the developing chick limb bud (see Smith et al., 1989) for review, and also several other articles in the present ...
P. Kastner +7 more
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