ALS	Amyotrophic lateral sclerosis
ALS-FRSr	Amyotrophic Lateral Sclerosis functional rating scale revised
BDNF	Brain-derived neurotrophic factor
CNS	Central nervous system
CRP	C-reactive protein
CSF	Cerebrospinal fluid
CXCR4	Chemokine receptor type 4
DEGs	Differentially expressed genes
FDA	Food and Drug Administration
GO	Gene ontology
Lin−	Lineage-negative
MNs	Motor neurons
NGF beta	Nerve growth factor beta
NT-3	Neurotrophin-3
NTs	Neurotrophins
PBS	Phosphate-buffered saline
sALS	Sporadic amyotrophic lateral sclerosis
SCs’	Stem cells
SOD1	Superoxide dismutase 1
SPCs	Stem and progenitor cells
Tx	Transplantation