All trans-retinoic acid analogs promote cancer cell apoptosis through non-genomic Crabp1 mediating ERK1/2 phosphorylation

All trans retinoic acid (atRA) is one of the most potent therapeutic agents, but extensive toxicity caused by nuclear RA receptors (RARs) limits its clinical application in treating cancer. AtRA also exerts non-genomic activities for which the mechanism remains poorly understood. We determine that c...

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Veröffentlicht in:Scientific reports 2016-03, Vol.6 (1), p.22396-22396, Article 22396
Hauptverfasser: Persaud, Shawna D., Park, Sung Wook, Ishigami-Yuasa, Mari, Koyano-Nakagawa, Naoko, Kagechika, Hiroyuki, Wei, Li-Na
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container_title Scientific reports
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creator Persaud, Shawna D.
Park, Sung Wook
Ishigami-Yuasa, Mari
Koyano-Nakagawa, Naoko
Kagechika, Hiroyuki
Wei, Li-Na
description All trans retinoic acid (atRA) is one of the most potent therapeutic agents, but extensive toxicity caused by nuclear RA receptors (RARs) limits its clinical application in treating cancer. AtRA also exerts non-genomic activities for which the mechanism remains poorly understood. We determine that cellular retinoic acid binding protein 1 (Crabp1) mediates the non-genomic activity of atRA, and identify two compounds as the ligands of Crabp1 to rapidly and RAR-independently activate extracellular signal regulated kinase 1/2 (ERK1/2). Non-canonically activated ERK activates protein phosphatase 2A (PP2A) and lengthens cell cycle duration in embryonic stem cells (ESC). This is abolished in Crabp1-null ESCs. Re-expressing Crabp1 in Crabp1-negative cancer cells also sensitizes their apoptotic induction by atRA. This study reveals a physiological relevance of the non-genomic action of atRA, mediated by Crabp1, in modulating cell cycle progression and apoptosis induction, and provides a new cancer therapeutic strategy whereby compounds specifically targeting Crabp1 can modulate cell cycle and cancer cell apoptosis in a RAR-independent fashion, thereby avoiding atRA’s toxicity caused by its genomic effects.
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subjects 631/80/86
631/80/86/2363
Animals
Apoptosis
Apoptosis - drug effects
Cancer
Cell cycle
Cell Line, Tumor
Cercopithecus aethiops
COS Cells
Embryo cells
Extracellular signal-regulated kinase
Genomics
Humanities and Social Sciences
Kinases
Mice
Mitogen-Activated Protein Kinase 3 - genetics
Mitogen-Activated Protein Kinase 3 - metabolism
multidisciplinary
Neoplasm Proteins - genetics
Neoplasm Proteins - metabolism
Neoplasms - genetics
Neoplasms - metabolism
Neoplasms - pathology
Phosphoprotein phosphatase
Phosphorylation
Phosphorylation - drug effects
Protein phosphatase
Receptors, Retinoic Acid - genetics
Receptors, Retinoic Acid - metabolism
Retinoic acid
Retinoic acid receptors
Science
Science (multidisciplinary)
Stem cells
Toxicity
Tretinoin - pharmacology
title All trans-retinoic acid analogs promote cancer cell apoptosis through non-genomic Crabp1 mediating ERK1/2 phosphorylation
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