SSCs	Spermatogonial stem cells
FACS	Fluorescence-activated cell sorting
MACS	Magnetic-activated cell sorting
DMEM	Dulbecco’s Modified Eagle Medium
GDNF	Glial cell line-derived neurotrophic factor
GFRα-1	GDNF family receptor alpha-1
RET	Receptor tyrosine kinase
STO	SIM mouse embryo-derived thioguanine and ouabain resistant fibroblast cell line
PLZF	Promyelocytic leukemia zinc finger
PGP9.5	Protein gene product 9.5
CD90	Cluster of differentiation 90
Thy-1	Thymocyte differentiation antigen 1
DBA	Dolichos biflorus agglutinin
VASA/DDX4	DEAD-box polypeptide 4
NANOG	Transcription factor related to the pluripotency of stem cells
POU5F1/OCT4	POU domain, class 5
DAZL	Deleted in azoospermia-like protein
ITGA6	Integrin subunit alpha 6
CD49f	cluster of differentiation 49f
CDH1	Cadherin 1
ALDH	Aldehyde dehydrogenase
FGF2	Fibroblast growth factor 2
NZW	New Zealand White
PBS	Phosphate-Buffered Saline
MEM	Minimum Essential Medium
EDTA	Ethylenediaminetetraacetic acid
TEM	Transmission electron microscopy