Results 61 to 70 of about 3,042,168 (292)

Retinoic acid receptors in acute myeloid leukemia therapy [PDF]

open access: yes, 2019
Retinoic acid (RA) signaling pathways regulate fundamental biological processes, such as cell proliferation, development, differentiation, and apoptosis. Retinoid receptors (RARs and RXRs) are ligand-dependent transcription factors.
John S. Welch   +3 more
core   +2 more sources

Depletion of retinoic acid receptors initiates a novel positive feedback mechanism that promotes teratogenic increases in retinoic acid. [PDF]

open access: yesPLoS Genetics, 2013
Normal embryonic development and tissue homeostasis require precise levels of retinoic acid (RA) signaling. Despite the importance of appropriate embryonic RA signaling levels, the mechanisms underlying congenital defects due to perturbations of RA ...
Enrico D'Aniello   +4 more
doaj   +1 more source

13-cis Retinoic Acid Exerts its Specific Activity on Human Sebocytes through Selective Intracellular Isomerization to All-trans Retinoic Acid and Binding to Retinoid Acid Receptors [PDF]

open access: yes, 2000
Despite its potent biologic effect on human sebocytes, 13-cis retinoic acid exhibits low binding affinity for cellular retinoic acid binding proteins and nuclear retinoid receptors.
Merk, Hans   +9 more
core   +1 more source

Engineered Nanoplatforms Targeting Activated Hepatic Stellate Cells for Liver Fibrosis Therapy via TGF‐β Axis Inhibition and Ferroptosis Induction

open access: yesAdvanced Healthcare Materials, EarlyView.
FeS‐VA@lanifibranor (FVL), an activated hepatic stellate cell (aHSC)‐targeted nanoplatform comprising vitamin A‐functionalized two‐dimensional iron sulfide nanosheets and lanifibranor, is engineered for precision therapy of liver fibrosis. FVL suppresses the TGF‐β signaling pathway by inhibiting SMAD2/3 phosphorylation and induces ferroptosis in aHSCs,
Yinuo Yang   +11 more
wiley   +1 more source

The Roles of Retinoic Acid and Retinoic Acid Receptors in Inducing Epigenetic Changes [PDF]

open access: yes, 2014
Epigenetics is "the branch of biology which studies the causal interactions between genes and their products which bring the phenotype into being" as defined by Conrad Waddington in 1942 in a discussion of the mechanisms of cell differentiation.
Alison, Urvalek   +2 more
openaire   +2 more sources

Bottom‐Up Engineering of a Human Neuromuscular System for Modeling Activity‐Induced Remodeling, Metabolic Stress, and Endothelial‐Modulated Excitability

open access: yesAdvanced Materials, EarlyView.
Using a bottom‐up approach, we engineered a human neuromuscular microchip to investigate distinct adaptive responses to neural stimulation and metabolic stress. Further integration of endothelial cells revealed their critical role in modulating neuromuscular excitability, establishing a comprehensive neurovascular‐muscular model.
Jinchul Ahn   +17 more
wiley   +1 more source

The potential of retinoic acid receptors as prognostic biomarkers and therapeutic targets in gastric cancer

open access: yesFrontiers in Oncology
BackgroundGastric cancer is a heterogeneous collection of tumors characterized by low survival rates. All-trans retinoic acid (retinoic-acid) is a clinically useful therapeutic agent belonging to the chemical family of retinoids, which consists of both ...
Silvio Ken Garattini   +13 more
doaj   +1 more source

MASH Background Confers Enhanced Disease Susceptibility and Acetaminophen Toxicity in iPSC‐Derived Liver Organoids

open access: yesAdvanced Science, EarlyView.
This work establishes a novel method for generating multicellular liver organoids from control and MASH donor iPSCs. The model recapitulates several disease‐specific characteristics, with MASH donor‐derived organoids showing higher susceptibility. Lipidomic profiling of MASH organoids closely resembles MASH liver biopsies.
Ekta Minocha   +5 more
wiley   +1 more source

Retinoic acid receptors and retinoid X receptors: interactions with endogenous retinoic acids. [PDF]

open access: yesProceedings of the National Academy of Sciences, 1993
The binding of endogenous retinoids and stereoisomers of retinoic acid (RA) to the retinoid nuclear receptors, RA receptor (RARs) and retinoid X receptors (RXRs), was characterized using nucleosol preparations from transiently transfected COS-1 cells. Among several stereoisomers of RA tested, including 7-cis-, 9-cis-, 11-cis-, 13-cis-, and all-trans-RA,
G, Allenby   +9 more
openaire   +2 more sources

International Union of Pharmacology. LX. Retinoic Acid Receptors

open access: yes, 2006
International audienceRetinoid is a term for compounds that bind to and activate retinoic acid receptors (RARalpha, RARbeta, and RARgamma), members of the nuclear hormone receptor superfamily.
Lotan, R.   +37 more
core   +1 more source

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