期刊
SCIENCE ADVANCES
卷 6, 期 25, 页码 -出版社
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/sciadv.aba2187
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资金
- Euronanomed II-Swedish Research Council [IKE-2014-00597]
- Euronanomed III-FRQS [278653]
- Quebec Vision Health Research Network-FRQS [2017-3]
- Caroline Foundation Research Chair for Cellular Therapy in the Eye
- NIHR Biomedical Research Centre at the Moorfields Eye Hospital NHS Foundation Trust [BRC-1215-20002]
- UCL Institute of Ophthalmology
- Westmead Charitable Trust Early Career Research Fellowship [CC368629-8245]
- Faculte des etudes superieures et postdoctorales de l'Universite de Montreal
- Fonds de recherche en ophtalmologie de l'Universite de Montreal (FROUM)
- Fonds de recherche du Quebec-Nature et technologies (FRQNT)
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- MRC [MR/S037829/1] Funding Source: UKRI
Transplantation with donor corneas is the mainstay for treating corneal blindness, but a severe worldwide shortage necessitates the development of other treatment options. Corneal perforation from infection or inflammation is sealed with cyanoacrylate glue. However, the resulting cytotoxicity requires transplantation. LiQD Cornea is an alternative to conventional corneal transplantation and sealants. It is a cell-free, liquid hydrogel matrix for corneal regeneration, comprising short collagen-like peptides conjugated with polyethylene glycol and mixed with fibrinogen to promote adhesion within tissue defects. Gelation occurs spontaneously at body temperature within 5 min. Light exposure is not required-particularly advantageous because patients with corneal inflammation are typically photophobic. The self-assembling, fully defined, synthetic collagen analog is much less costly than human recombinant collagen and reduces the risk of immune rejection associated with xenogeneic materials. In situ gelation potentially allows for clinical application in outpatient clinics instead of operating theaters, maximizing practicality, and minimizing health care costs.
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