Gene expression profiling in whole blood stimulated ex vivo with lipopolysaccharide as a tool to predict post ‐stroke depressive symptoms: Proof‐of‐concept study

We studied if blood gene expression could facilitate identification of persons who will develop depression 3 months after ischemic stroke. Venous blood samples were collected on day 3 after stroke. Obtained blood was stimulated in vitro with lipopolysaccharide, a powerful inducer of gene expression. After stimulation, RNA was isolated and sequenced. Expression of 510 genes differed between patients who developed depression and those who had not depression after stroke. Bioinformatic analysis revealed that expression of 6 genes (PKM, PRRC2C, NUP188, CHMP3, H2AC8, NOP10) accurately predicted a risk of depression. Our findings suggest gene profiling in stimulated blood is a promising tool for searching biomarkers of post-stroke depression. AbstractPrediction of post-stroke depressive symptoms (DSs) is challenging in patients without a history of depression. Gene expression profiling in blood cells may facilitate the search for biomarkers. The use of an ex vivo stimulus to the blood helps to reveal differences in gene profiles by reducing variation in gene expression. We conducted a proof-of-concept study to determine the usefulness of gene expression profiling in lipopolysaccharide (LPS)-stimulated blood for predicting post-stroke DS. Out of 262 enrolled patients with ischemic stroke, we included 96 patients without a pre-stroke history of depression and not taking any anti-depressive medication before or during the first 3  months after stroke. We assessed DS at 3 months af...
Source: Journal of Neurochemistry - Category: Neuroscience Authors: Tags: ORIGINAL ARTICLE Source Type: research