Project description:This project is "Phosphoproteomic analysis of the lumbar spinal cord, a lesion site in the amyotrophic lateral sclerosis (ALS) mouse model SOD1G93A mice". The aim of this study is to clarify the phosphorylation changes by the lumbar spinal cord of SOD1G93A mice at 20w by applying proteomics technology. The goal of this study is to better understand the pathogenesis of ALS. lumbar spinal cord of SOD1G93A mice (n=5) and WT mice (n=4) were collected at 20w, and the phosphoproteomics were compared.
Project description:Expression profile of microRNA in lumbar spinal cord from MLC/SOD1G93A using Applied Biosystem Array Mouse MicroRNA A Card Lumbar Spinal Cord Ventral samples were collected from mice MLC/SOD1[G93A] and control FVB age matched at 4 month-old. Samples were collected for RNA extraction and analyzed on Taqman Array Mouse MicroRNA Card A version 3.0
Project description:Amyotrophic lateral sclerosis (ALS) is a paralytic degenerative disease of the nervous system. In the SOD1 mouse model of ALS we found loss of the molecular and functional microglia signature associated with pronounced expression of miR-155 in SOD1 mice. We also found increased expression of miR-155 in the spinal cord of ALS subjects. Genetic ablation of miR-155 increased survival in SOD1 mice and reversed the abnormal microglial and monocyte molecular signature. In addition, dysregulated proteins in the spinal cord of SOD1 mice that we identified in human ALS spinal cords and CSF were restored in SOD1G93A/miR155-/- mice. Treatment of SOD1 mice with anti-miR-155 SOD1 mice injected systemically or into the cerebrospinal fluid prolonged survival and restored the microglial unique genetic and microRNA profiles. Our findings provide a new avenue for immune based therapy of ALS by targeting miR-155. Total RNA was isolated from whole lumbar spinal cord homogenate from healthy control donors without known neurologic diseases and sporadic and familial ALS.
Project description:To investigate the usefulness of gene expression as diagnostic biomarkers, we compared whole genome expression profiles of lumbar spinal cord with profiles of peripheral blood and tibialis anterior muscle in 16 mutant G93A-SOD1 mice and 15 wild type littermates. Total RNA obtained from blood, tibialis anterior muscle and lumbar spinal cord of G93A-SOD1 mice compared to wild type littermates.
Project description:Bulk RNA Sequencing of Col1a1GFP+ cells from the spinal cords of healthy Col1a1GFP mice and mice 5 or 10 days after EAE symptom onset compared to bulk RNA sequencing of whole spinal cord homogenate