JAMA Dermatol:静脉注射庆大霉素治疗无义突变所致的交界型表皮松解症

2022-05-21 sunshine MedSci原创

交界型表皮松解症(JEB)是一种无法治愈的大疱性皮肤病,婴儿死亡率很高,通常由编码层粘连蛋白332的基因中的无义变异引起。

交界型表皮松解症(JEB)是一种无法治愈的大疱性皮肤病,婴儿死亡率很高,通常由编码层粘连蛋白332的基因中的无义变异引起。近日,发表于JAMA Dermatol的一项开放标签的试验性非随机临床试验评估了静脉注射庆大霉素突破治疗和随后的层粘连蛋白332表达在JEB患者中的安全性和结果。

5名患有JEB的儿科患者(2名中度JEB患者和3名重度JEB患者)和确认LAMA3或LAMB3中1或2个等位基因的无义变体以及其皮肤真皮-表皮交界处层粘连蛋白332表达减少的患者参加了该研究,该研究于2019年4月1日至2021年2月28日在单一机构与患者附近的医生和家庭输液服务合作进行,随访至2021年5月31日。

3名患者接受庆大霉素,每天7.5毫克/千克,持续14天;2名患者接受庆大霉素,每天10毫克/千克,持续24天。主要结果是患者皮肤中层粘连蛋白332的表达变化和安全性评估(耳毒性作用、肾毒性作用和自身免疫反应)。次要结果包括监测伤口的愈合和表皮松解症疾病活动和瘢痕指数(EBDASI)评分。

结果显示,庆大霉素治疗后,所有5名患者(年龄范围为3个月至10岁,4名[80%]女性)都表现出真皮-表皮交界处的层粘连蛋白332的表达增加。到1个月时,接受低剂量静脉注射庆大霉素的患者9个伤口中的7个和接受高剂量静脉注射庆大霉素的患者的所有伤口都表现出至少50%的伤口闭合。到3个月时,接受低剂量庆大霉素治疗的患者9个伤口中的8个和接受大剂量静脉庆大霉素治疗的患者所有伤口的闭合率都超过了85%。所有3名接受EBDASI评估的患者在治疗1个月后的总活动评分都有所下降,达到最小临床重要差异。所有5名患者都完成了研究,没有发现耳毒性作用、肾毒性作用或抗层析蛋白332抗体。

总之,在这项非随机临床试验中,静脉注射庆大霉素治疗与JEB患者无义突变的诱导阅读疗法有关,在其皮肤中恢复了功能性层粘连蛋白332,并在3个月的研究期内实现了伤口闭合。尽管需要进一步评估长期的安全性和疗效,但对于JEB患者这一群体来说,静脉注射庆大霉素的单周期治疗可能是一种安全且便捷的短期治疗方法。

原始出处:

Daniel Mosallaei, et al., Molecular and Clinical Outcomes After Intravenous Gentamicin Treatment for Patients With Junctional Epidermolysis Bullosa Caused by Nonsense Variants.  JAMA Dermatol. 2022 Apr 1;158(4):366-374. doi: 10.1001/jamadermatol.2021.5992.

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    2022-07-24 fusion
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    2022-05-10 肿瘤克星

    JAMA上文章都是顶级的,谢谢梅斯及时上新

    0

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