Landscape of microRNA in the aqueous humour of proliferative diabetic retinopathy as assessed by next‐generation sequencing

2019 ◽  
Vol 47 (7) ◽  
pp. 925-936 ◽  
Author(s):  
Shida Chen ◽  
Miner Yuan ◽  
Yaoming Liu ◽  
Xiujuan Zhao ◽  
Ping Lian ◽  
...  
Keyword(s):  
Diabetic Retinopathy ◽  
Next Generation Sequencing ◽  
Proliferative Diabetic Retinopathy ◽  
Aqueous Humour ◽  
Next Generation ◽  
Generation Sequencing

scholarly journals The Aflibercept-Induced MicroRNA Profile in the Vitreous of Proliferative Diabetic Retinopathy Patients Detected by Next-Generation Sequencing

2021 ◽  
Vol 12 ◽  
Author(s):  
Ju Guo ◽  
Pengyi Zhou ◽  
Zhenhui Liu ◽  
Fangfang Dai ◽  
Meng Pan ◽  
...  
Keyword(s):  
Diabetic Retinopathy ◽  
Next Generation Sequencing ◽  
Treatment Group ◽  
Proliferative Diabetic Retinopathy ◽  
Function Analysis ◽  
Group Versus ◽  
Next Generation ◽  
Target Mrnas ◽  
Intravitreal Aflibercept ◽  
Generation Sequencing

Purpose: Vascular endothelial growth factor-A (VEGF-A) is an important pathogenic factor in proliferative diabetic retinopathy (PDR), and aflibercept (Eylea) is one of the widely used anti-VEGF agents. This study investigated the microRNA (miRNA) profiles in the vitreous of 5 idiopathic macular hole patients (non-diabetic controls), 5 untreated PDR patients (no-treatment group), and 5 PDR patients treated with intravitreal aflibercept injection (treatment group).Methods: Next-generation sequencing was performed to determine the miRNA profiles. Deregulated miRNAs were validated with quantitative real-time PCR (qRT-PCR) in another cohort. The mRNA profile data (GSE160310) of PDR patients were retrieved from the Gene Expression Omnibus (GEO) database. The function of differentially expressed miRNAs and mRNAs was annotated by bioinformatic analysis and literature study.Results: Twenty-nine miRNAs were significantly dysregulated in the three groups, of which 19,984 target mRNAs were predicted. Hsa-miR-3184-3p, hsa-miR-24-3p, and hsa-miR-197-3p were validated to be remarkably upregulated in no-treatment group versus controls, and significantly downregulated in treatment group versus no-treatment group. In the GSE160310 profile, 204 deregulated protein-coding mRNAs were identified, and finally 179 overlapped mRNAs between the 19,984 target mRNAs and 204 deregulated mRNAs were included for further analysis. Function analysis provided several roles of aflibercept-induced miRNAs, promoting the alternation of drug sensitivity or resistance-related mRNAs, and regulating critical mRNAs involved in angiogenesis and retinal fibrosis.Conclusion: Hsa-miR-3184-3p, hsa-miR-24-3p, and hsa-miR-197-3p were highly expressed in PDR patients, and intravitreal aflibercept injection could reverse this alteration. Intravitreal aflibercept injection may involve in regulating cell sensitivity or resistance to drug, angiogenesis, and retinal fibrosis.

Labordiagnostik bei gastrointestinalen Tumoren

2020 ◽  
Vol 11 (05) ◽  
pp. 232-238
Author(s):  
Marcus Kleber
Keyword(s):  
Next Generation Sequencing ◽  
Kolorektales Karzinom ◽  
Next Generation ◽  
Generation Sequencing

ZUSAMMENFASSUNGDas kolorektale Karzinom (KRK) ist einer der häufigsten malignen Tumoren in Deutschland. Einer frühzeitigen Diagnostik kommt große Bedeutung zu. Goldstandard ist hier die Koloskopie. Die aktuelle S3-Leitlinie Kolorektales Karzinom empfiehlt zum KRK-Screening den fäkalen okkulten Bluttest. Für das Monitoring von Patienten vor und nach Tumorresektion werden die Messung des Carcinoembryonalen Antigens (CEA) und der Mikrosatellitenstabilität empfohlen. Für die Auswahl der korrekten Chemotherapie scheint derzeit eine Überprüfung des Mutationsstatus, mindestens des KRAS-Gens und des BRAF-Gens, sinnvoll zu sein. Eine Reihe an neuartigen Tumormarkern befindet sich momentan in der Entwicklung, hat jedoch noch nicht die Reife für eine mögliche Anwendung in der Routinediagnostik erreicht. Den schnellsten Weg in die breite Anwendung können Next-Generation-Sequencing-basierte genetische Tests finden.

Next-Generation Sequencing of Sporadic Schwannomas Reveals Critical Importance of NF2 Alteration

2016 ◽  
Vol 77 (S 01) ◽  
Author(s):  
Pankaj Agarwalla ◽  
Wenya Bi ◽  
William Gibson ◽  
Shakti Ramkissoon ◽  
Steven Schumacher ◽  
...  
Keyword(s):  
Next Generation Sequencing ◽  
Next Generation ◽  
Critical Importance ◽  
Generation Sequencing
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