Efficacy of cobalt chelates in the rabbit eye model for epithelial herpetic keratitis.

Efficacy of cobalt chelates in the rabbit eye model for epithelial herpetic keratitis.
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钴螯合物在兔眼模型中治疗上皮性疱疹性角膜炎的功效。

DOI:
10.1097/00003226-199809000-00014
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发表时间:
1998
期刊:
影响因子:
2.8
通讯作者:
Burger,RM
Burger,RM
中科院分区:
医学3区
文献类型:
--
作者:
Asbell,PA;Epstein,SP;Wallace,JA;Epstein,D;Stewart,CC;Burger,RM

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目的:评估一类新型抗病毒剂钴螯合物(CTC 系列)用于治疗上皮性疱疹性角膜炎,随之而来的基质病是工业国家失明的主要感染原因。方法:在细胞培养物和兔眼模型中监测 CTC 复合物的作用,无论是感染 1 型单纯疱疹病毒 (HSV-1) 还是未感染。将几种对 Vero 细胞无毒的抗病毒浓度的 CTC 复合物给予患有 HSV-1 诱导的角膜炎的兔眼。测量角膜表面病毒滴度,并通过裂隙灯显微镜监测上皮性角膜炎的角膜病变并评分。使用非参数统计比较使用 CTC 复合物、安慰剂或临床配制的三氟胸苷 (Viroptic) 治疗的眼睛的恢复率和发病率。结果:所有 CTC 复合物都能在体外抑制 HSV-1 复制,其中 CTC-96 效果最好。 CTC-96、CTC-23 和 CTC-67 按效力递减顺序消除(< 1 空斑形成单位 [pfu])角膜表面 HSV-1(否则> 105 pfu),但 CTC-82 无效。 CTC-96(5μg/ml每天六次或10μg/ml每天五次)比三氟胸苷(10mg/ml每天九次)更好或相同地加速疱疹性树突状角膜炎恢复。 CTC复合物对于连续暴露于<25μg/ml的Vero细胞是无毒的;每天九次 50 μg/ml 的 CTC 96 不会刺激未感染的兔眼。结论:局部应用 CTC-96 在减少疾病体征和角膜表面病毒方面至少与 Viroptic 一样有效,浓度低于 Viroptic 的千分之一。
Purpose: A new class of antiviral agent, cobalt chelates (the CTC series), was evaluated for treating epithelial herpetic keratitis, consequent stromal disease being the major infectious cause of blindness in industrial nations.Methods: Effects of CTC complexes were monitored in cell cultures and in a rabbit eye model, either infected with herpes simplex virus type 1 (HSV-1) or uninfected. Several antiviral concentrations of CTC complexes nontoxic to Vero cells were administered to rabbit eyes with HSV-1-induced keratitis. Corneal surface virus titers were measured, and corneal lesions of epithelial keratitis were monitored by slit-lamp microscopy and scored. Recovery rates and incidence were compared in eyes treated with CTC complexes, placebo, or clinically formulated trifluorothymidine (Viroptic), using nonparametric statistics.Results: All CTC complexes inhibited HSV-1 replication in vitro, CTC-96 being best. CTC-96, CTC-23, and CTC-67 eliminated (< 1 plaqueforming unit [pfu]) corneal surface HSV-1 (otherwise> 105 pfu) in order of descending potency, but CTC-82 was ineffective. CTC-96 (either 5 [mu] g/ml six times daily or 10 [mu] g/ml five times daily) accelerated herpetic dendritic keratitis recovery better than or the same as trifluorothymidine (10 mg/ml nine times daily). CTC complexes were nontoxic to Vero cells continuously exposed to< 25 [mu] g/ml; 50 [mu] g/ml of CTC 96 nine times daily did not irritate uninfected rabbit eyes.Conclusion: Topical CTC-96 applications were at least as effective as Viroptic in diminishing disease signs and corneal surface virus at concentrations less than one-thousandth that of Viroptic.
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发表时间: 1987-09
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DOI: 10.1002/j.1460-2075.1987.tb02649.x
发表时间: 1987-11-01
期刊: EMBO JOURNAL
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