Phosphorylcholine and KR12-Containing Corneal Implants in HSV-1-Infected Rabbit Corneas.
Phosphorylcholine and KR12-Containing Corneal Implants in HSV-1-Infected Rabbit Corneas.
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DOI:
10.3390/pharmaceutics15061658
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发表时间:
2023-06-05
期刊:
影响因子:
5.4
通讯作者:
Griffith M
中科院分区:
文献类型:
--
作者:
Malhotra K;Buznyk O;Islam MM;Edin E;Basu S;Groleau M;Dégué DS;Fagerholm P;Fois A;Lesage S;Jangamreddy JR;Šimoliūnas E;Liszka A;Patra HK;Griffith M
Severe HSV-1 infection can cause blindness due to tissue damage from severe inflammation. Due to the high risk of graft failure in HSV-1-infected individuals, cornea transplantation to restore vision is often contraindicated. We tested the capacity for cell-free biosynthetic implants made from recombinant human collagen type III and 2-methacryloyloxyethyl phosphorylcholine (RHCIII-MPC) to suppress inflammation and promote tissue regeneration in the damaged corneas. To block viral reactivation, we incorporated silica dioxide nanoparticles releasing KR12, the small bioactive core fragment of LL37, an innate cationic host defense peptide produced by corneal cells. KR12 is more reactive and smaller than LL37, so more KR12 molecules can be incorporated into nanoparticles for delivery. Unlike LL37, which was cytotoxic, KR12 was cell-friendly and showed little cytotoxicity at doses that blocked HSV-1 activity in vitro, instead enabling rapid wound closure in cultures of human epithelial cells. Composite implants released KR12 for up to 3 weeks in vitro. The implant was also tested in vivo on HSV-1-infected rabbit corneas where it was grafted by anterior lamellar keratoplasty. Adding KR12 to RHCIII-MPC did not reduce HSV-1 viral loads or the inflammation resulting in neovascularization. Nevertheless, the composite implants reduced viral spread sufficiently to allow stable corneal epithelium, stroma, and nerve regeneration over a 6-month observation period.
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DOI:
10.1007/s40259-013-0039-0
发表时间:
2013-10
期刊:
BioDrugs : clinical immunotherapeutics, biopharmaceuticals and gene therapy
影响因子:
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作者:
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DOI:
10.3389/fbinf.2021.742843
发表时间:
2021
期刊:
FRONTIERS IN BIOINFORMATICS
影响因子:
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作者:
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影响因子:
4.2
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