Track topics on Twitter Track topics that are important to you
NLRP3, as a crucial inflammasome component, plays important roles in age-related macular degeneration. Though some activators of NLRP3 have been studied, microRNAs (miRNAs) which potentially regulate NLRP3 messenger RNA (mRNA) have not been fully explored in retinal pigment epithelial (RPE) cells and retinopathy. In this study, by miRNA microarray proﬁling and bioinformatic analysis, we identified that four miRNAs, miR-4286, miR-223-3p, miR-365a, miR-22-3p, may target NLRP3 mRNA in RPE inflammatory damage in vivo. Further, real-time polymerase chain reaction verified that only miR-22-3p was significantly decreased, which was associated with NLRP3 upregulation in blue-light-induced retinopathy. Mechanistically, the dual-fluorescent reporter suggested miR-22-3p directly binds NLRP3 mRNA. Moreover, overexpression of miR-22-3p could significantly reduce whereas inhibition miR-22-3p could increase the mRNA and protein expressions of NLRP3, Caspase-1, and mature IL-1β. Collectively, our results indicate that miR-22-3p plays a suppressive role in RPE damage by targeting NLRP3, which provides new insights into the future intervention to retinopathy.
This article was published in the following journal.
Name: Journal of cellular physiology
The purpose of this study was to evaluate the effect and mechanism of quercetin on TGF-β1-induced retinal pigment epithelial (RPE) cell proliferation, migration, and extracellular matrix secretion.
To evaluate whether brimonidine can prevent cytotoxicity in human retinal pigment epithelial (RPE) and Müller (MIO) cells after exposure to amyloid-beta 1-42 (Aβ42).
Blue light-emitting diode light (BLL)-induced phototoxicity plays an important role in ocular diseases and causes retinal degeneration and apoptosis in human retinal pigment epithelial (RPE) cells. Ci...
Epithelial-mesenchymal transition (EMT) in retinal pigment epithelial (RPE) cells is related to the pathogenesis of subretinal fibrosis such as that associated with macular degeneration. The role of m...
Diabetic retinopathy (DR) is one of the most common complications of diabetes and the leading cause of acquired blindness in adults. In diabetic patients hyperglycemia induces complex metabolic abnorm...
The purpose of this study is to demonstrate the efficacy of ranibizumab in patients with retinal pigment epithelial detachment secondary to age-related macular degeneration (AMD).
Uncontrolled single site non randomized non interventional study to determine the safety and efficacy of intravitreal injections of Aflibercept in patients with recent vision loss due to r...
This study is an open-label investigation of the safety and preliminary efficacy of the subretinal transplantation of human retinal pigment epithelial cells on Macular Degeneration.
The purpose of this study is to is to evaluate the occurrence of late onset (i.e., greater than 5 years after treatment) safety events of special interest in participants who have received...
This is a multicenter, randomized, open-label study. 30 patients will be followed for a period of 12 months. All consented and enrolled patients will receive 0.5mg of intravitreal ranibi...
The single layer of pigment-containing epithelial cells in the RETINA, situated closely to the tips (outer segments) of the RETINAL PHOTORECEPTOR CELLS. These epithelial cells perform essential functions for the photoreceptor cells, such as in nutrient transport, phagocytosis of the shed photoreceptor membranes, and ensuring retinal attachment.
Colloid or hyaline bodies lying beneath the retinal pigment epithelium. They may occur either secondary to changes in the choroid that affect the pigment epithelium or as an autosomal dominant disorder of the retinal pigment epithelium.
A membrane on the vitreal surface of the retina resulting from the proliferation of one or more of three retinal elements: (1) fibrous astrocytes; (2) fibrocytes; and (3) retinal pigment epithelial cells. Localized epiretinal membranes may occur at the posterior pole of the eye without clinical signs or may cause marked loss of vision as a result of covering, distorting, or detaching the fovea centralis. Epiretinal membranes may cause vascular leakage and secondary retinal edema. In younger individuals some membranes appear to be developmental in origin and occur in otherwise normal eyes. The majority occur in association with retinal holes, ocular concussions, retinal inflammation, or after ocular surgery. (Newell, Ophthalmology: Principles and Concepts, 7th ed, p291)
The layer of pigment-containing epithelial cells in the RETINA; the CILIARY BODY; and the IRIS in the eye.
A group of disorders involving predominantly the posterior portion of the ocular fundus, due to degeneration in the sensory layer of the RETINA; RETINAL PIGMENT EPITHELIUM; BRUCH MEMBRANE; CHOROID; or a combination of these tissues.
A microRNA (abbreviated miRNA) is a small non-coding RNA molecule (containing about 22 nucleotides) found in plants, animals, and some viruses. Key findings: miRNA is involved in the normal functioning of eukaryotic cells, so has dysregulation...
Ophthalmology is the branch of medicine that is devoted to the study and treatment of eye diseases. As well as mild visual defects correctable by lenses, ophthalmology is concerned with glaucoma, uveitis and other serious conditions affecting the eye, ...