Inhibition of activation-induced apoptosis of thymocytes by all-trans- and 9-cis-retinoic acid is mediated via retinoic acid receptor α
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چکیده
منابع مشابه
Isomerization of all-trans-retinoic acid to 9-cis-retinoic acid.
The discovery of the biological activity of 9-cis-retinoic acid raises questions as to its mode of biosynthesis. A simple mechanism involves the direct isomerization of all-trans-retinoic acid to 9-cis-retinoic acid. It is shown here that bovine liver membranes, but not supernatant fractions, can isomerize all-trans-retinoic acid into 9-cis-retinoic acid and 13-cis-retinoic acid. The concentrat...
متن کاملActivation of retinoic acid receptor-dependent transcription by all-trans-retinoic acid metabolites and isomers.
We have shown that four metabolites of all-trans-retinoic acid (ATRA) (4-oxo-, 4-OH-, 18-OH-, and 5,6-epoxy-RA) can induce maturation of NB4 promyelocytic leukemia cells (Idres, N., Benoit, G., Flexor, M. A., Lanotte, M., and Chabot, G. G. (2001) Cancer Res. 61, 700-705). To better understand the mechanism of action of ATRA metabolites and isomers, we assessed their binding to retinoic acid rec...
متن کاملNovel retinoic acid, 9-cis retinoic acid, in combination with all-trans retinoic acid is an effective inducer of differentiation of retinoic acid-resistant HL-60 cells.
Recent studies have shown that a high proportion of patients with acute promyelocytic leukemia (APL) achieve complete remission after treatment with all-trans retinoic acid (RA). Nevertheless, despite an initial good response, most patients that received continuous treatment with all-trans RA relapse and develop RA-resistant disease. The 9-cis RA is a high-affinity ligand for retinoid X recepto...
متن کاملAll Trans Retinoic Acid (ATRA) induced myositis.
A 5-year-old girl presented with fever, skin and mucosal bleeds, and pallor. Her hemoglobin was 3.6 g/dL, total white cell count 4.5×103/μL and platelet count 13×103/μL. Peripheral smear revealed 30% blasts, confirmed as APML on bone marrow examination. Cytogenetic analysis showed the typical translocation of t(15:17) with 77% of interphase cells expressing PML:RARA gene fusion. Child was start...
متن کاملEffects of Novel Retinoic Acid Compound, 9-cis-Retinoic Acid, on Proliferation, Differentiation, and Expression of Retinoic Acid Receptor-a
Retinoic acid modulates proliferation and differentiation of a wide variety of normal and leukemic cells through two distinct families of transcriptional factors: the retinoic acid receptors (RARs) and the retinoid X receptors (RXRs). A stereoisomer of retinoic acid, 9-cis-retinoic acid, is a highaffinity ligand for RXR and binds efficiently to RAR. In contrast, all-trans-retinoic acid interact...
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ژورنال
عنوان ژورنال: Biochemical Journal
سال: 1998
ISSN: 0264-6021,1470-8728
DOI: 10.1042/bj3310767