Exosomal miRNA Profiling in Vitreous Humor in Proliferative Diabetic Retinopathy.
Agnieszka KotRadoslaw KaczmarekPublished in: Cells (2022)
MicroRNAs (miRNAs) are small noncoding RNAs which mediate some of the pathological mechanisms of diabetic retinopathy. The aim of this study was to identify differentially expressed miRNAs in the vitreal exosomes of proliferative diabetic retinopathy (PDR) patients and non-diabetic controls. Exosomes were extracted from the vitreous samples of 10 PDR patients and 10 controls. The expression of 372 miRNAs was determined using a quantitative polymerase chain reaction (qPCR) panel. We have demonstrated a significant dysregulation in 26 miRNAs. The most remarkable findings include a profound attenuation of the miR-125 family, as well as enhanced miR-21-5p expression in the diabetic samples. We also showed the downregulation of miR-204-5p and the upregulation of let-7g in PDR compared to the controls. This study identified miR-125 and miR-21 as potential targets for further functional analysis regarding their putative role in the pathogenesis of PDR.
Keyphrases
- diabetic retinopathy
- cell proliferation
- optical coherence tomography
- poor prognosis
- end stage renal disease
- long non coding rna
- newly diagnosed
- ejection fraction
- chronic kidney disease
- stem cells
- mesenchymal stem cells
- type diabetes
- long noncoding rna
- risk assessment
- single cell
- bone marrow
- climate change
- binding protein
- human health