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2018 ; 2018
(ä): 7894647
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Emerging Therapeutic Strategies for Limbal Stem Cell Deficiency
#MMPMID30050691
Dong Y
; Peng H
; Lavker RM
J Ophthalmol
2018[]; 2018
(ä): 7894647
PMID30050691
show ga
Identification and characterization of the limbal epithelial stem cells (LESCs)
has proven to be a major accomplishment in anterior ocular surface biology. These
cells have been shown to be a subpopulation of limbal epithelial basal cells,
which serve as the progenitor population of the corneal epithelium. LESCs have
been demonstrated to play an important role in maintaining corneal epithelium
homeostasis. Many ocular surface diseases, including intrinsic (e.g., Sjogren's
syndrome) or extrinsic (e.g., alkali or thermal burns) insults, which impair
LESCs, can lead to limbal stem cell deficiency (LSCD). LSCD is characterized by
an overgrowth of conjunctival-derived epithelial cells, corneal
neovascularization, and chronic inflammation, eventually leading to blindness.
Treatment of LSCD has been challenging, especially in bilateral total LSCD.
Recently, advances in LESC research have led to novel therapeutic approaches for
treating LSCD, such as transplantation of the cultured limbal epithelium. These
novel therapeutic approaches have demonstrated efficacy for ocular surface
reconstruction and restoration of vision in patients with LSCD. However, they all
have their own limitations. Here, we describe the current status of LSCD
treatment and discuss the advantages and disadvantages of the available
therapeutic modalities.