DED	Dry eye disease
AS	Autologous serum
TGF-β	Transforming growth factor-beta
PDGF	Platelet-derived growth factor
EGF	Epidermal growth factor
NGF	Nerve growth factor
IGF-1	Insulin-like growth factor 1
VEGF	Vascular endothelial growth factor
SP	Substance P
PRP	Platelet-rich plasma
UCS	Umbilical cord blood serum
IL	Interleukin
TNF-α	Tumor necrosis factor-α
CGRP	Calcitonin gene-related peptide
ALS	Allogeneic serum
HGF	Hepatocyte growth factor
PF-4	Platelet factor-4
PRGF	Plasma rich in growth factors
PRPGF	Plasma rich in platelet and growth factors
PC	Platelet concentrate
LR-PRP	Leukocyte-rich platelet-rich plasma
LP-PRP	Leukocyte-poor platelet-rich plasma
MMP-9	Matrix metallopeptidase 9
MSCs	Mesenchymal stem cells or multipotent stromal cells
MHC-II	Major histocompatibility complex II
NK	Natural killer cells
IDO	Indolamine 2,3-dioxygenase
PGE2	prostaglandin E2
NO	Nitric oxide
IFN-γ	Interferon-gamma
LESCs	Limbal epithelial stem cells
TSP-1	Thrombospondin-1