A Novel Protocol to Derive Cervical Motor Neurons from Induced Pluripotent Stem Cells for Amyotrophic Lateral Sclerosis
Overview
Authors
Affiliations
Sporadic amyotrophic lateral sclerosis (sALS) is the majority of ALS, and the lack of appropriate disease models has hindered its research. Induced pluripotent stem cell (iPSC) technology now permits derivation of iPSCs from somatic cells of sALS patients to investigate disease phenotypes and mechanisms. Most existing differentiation protocols are time-consuming or low efficient in generating motor neurons (MNs). Here we report a rapid and simple protocol to differentiate MNs in monolayer culture using small molecules, which led to nearly pure neural stem cells in 6 days, robust OLIG2 pMNs (73%-91%) in 12 days, enriched CHAT cervical spinal MNs (sMNs) (88%-97%) in 18 days, and functionally mature sMNs in 28 days. This simple and reproducible protocol permitted the identification of hyperexcitability phenotypes in our sALS iPSC-derived sMNs, and its application in neurodegenerative diseases should facilitate in vitro disease modeling, drug screening, and the development of cell therapy.
Frawley L, Taylor N, Sivills O, McPhillamy E, To T, Wu Y Biomedicines. 2025; 13(1).
PMID: 39857620 PMC: 11763168. DOI: 10.3390/biomedicines13010035.
Deng Y, Liu J, Ting H, Kuo T, Chiang C, Lin E PLoS One. 2024; 19(11):e0311573.
PMID: 39509425 PMC: 11542850. DOI: 10.1371/journal.pone.0311573.
Yang M, You D, Liu G, Lu Y, Yang G, OBrien T Sci Rep. 2024; 14(1):26106.
PMID: 39478194 PMC: 11525838. DOI: 10.1038/s41598-024-77710-1.
How is Excitotoxicity Being Modelled in iPSC-Derived Neurons?.
Cheng J, Cook A, Talbot J, Perry S Neurotox Res. 2024; 42(5):43.
PMID: 39405005 PMC: 11480214. DOI: 10.1007/s12640-024-00721-3.
A comprehensive review of electrophysiological techniques in amyotrophic lateral sclerosis research.
Ren K, Wang Q, Jiang D, Liu E, Alsmaan J, Jiang R Front Cell Neurosci. 2024; 18:1435619.
PMID: 39280794 PMC: 11393746. DOI: 10.3389/fncel.2024.1435619.