通过超声波进行体内胎盘基因调控。

IF 3 2区 医学 Q2 DEVELOPMENTAL BIOLOGY
Lance G A Nunes, Fredrick J Rosario, Johann Urschitz
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引用次数: 0

摘要

胎盘功能失调经常导致妊娠并发症,影响胎儿的健康,并可能使婴儿日后易患疾病。因此,了解胎盘失调的分子机制对于帮助开发有效的治疗方法以恢复胎盘功能至关重要。目前,实验室中最常用的滋养层特异性基因调控方法是转基因动物和慢病毒滋养层转导。转基因动物品系的生成成本较高,需要大量时间来生成和维持,而慢病毒的整合偏好是主动转录基因,可能会导致基因毒性。因此,开发用于研究和临床的非病毒体内转染技术备受关注。在本文中,我们介绍了一种非病毒、微创的体内胎盘基因调控方法,即超声介导的转染技术,通过在靶组织上应用超声来引导 DNA 载体的吸收。在这种方法中,质粒与脂质微气泡结合,然后注入母体血液,在低频超声的作用下最终输送到胎盘。合胞滋养细胞直接暴露在母体血液中,因此极易接触到母体循环中的治疗药物。这种技术可用于调节基因表达,进而调节胎盘的功能,从而避免了产生转基因动物的要求。与现有的病毒技术相比,声波修复技术还提供了一种更安全的替代技术,使其不仅成为一种有利的研究工具,而且有可能成为一种适用于临床环境的技术。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
In vivo placental gene modulation via sonoporation.

Placental dysregulation frequently results in pregnancy complications that impact fetal well-being and potentially predispose the infant to diseases later in life. Thus, efforts to understand the molecular mechanisms underlying placental disorders are crucial to aid the development of effective treatments to restore placental function. Currently, the most common methods used for trophoblast-specific gene modulation in the laboratory are transgenic animals and lentiviral trophectoderm transduction. The generation of transgenic animal lines is costly and requires a considerable amount of time to generate and maintain, while the integration preference of lentiviruses, actively transcribed genes, may result in genotoxicity. Therefore, there is much interest in the development of non-viral in vivo transfection techniques for use in both research and clinical settings. Herein, we describe a non-viral, minimally invasive method for in vivo placental gene modulation through sonoporation, an ultrasound-mediated transfection technique wherein the application of ultrasound on target tissues is used to direct the uptake of DNA vectors. In this method, plasmids are bound to lipid microbubbles, which are then injected into the maternal bloodstream and ultimately delivered to the placenta when subjected to low-frequency ultrasound. Syncytiotrophoblasts are directly exposed to maternal blood and, therefore highly accessible to therapeutic agents in the maternal circulation. This technique can be used to modulate gene expression and, subsequently, the function of the placenta, circumventing the requirement to generate transgenic animals. Sonoporation also offers a safer alternative to existing viral techniques, making it not only an advantageous research tool but also a potentially adaptable technique in clinical settings.

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来源期刊
Placenta
Placenta 医学-发育生物学
CiteScore
6.30
自引率
10.50%
发文量
391
审稿时长
78 days
期刊介绍: Placenta publishes high-quality original articles and invited topical reviews on all aspects of human and animal placentation, and the interactions between the mother, the placenta and fetal development. Topics covered include evolution, development, genetics and epigenetics, stem cells, metabolism, transport, immunology, pathology, pharmacology, cell and molecular biology, and developmental programming. The Editors welcome studies on implantation and the endometrium, comparative placentation, the uterine and umbilical circulations, the relationship between fetal and placental development, clinical aspects of altered placental development or function, the placental membranes, the influence of paternal factors on placental development or function, and the assessment of biomarkers of placental disorders.
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