空気-液体界面で培養されたヒト上皮肺細胞におけるナノ粒子媒介のsiRNA配送
Stina Rademacker1, Joschka T Müller1, Adrian P E Kromer1
1Department of Pharmacy, Pharmaceutical Technology and Biopharmacy, Ludwig-Maximilians-University Munich, Munich, Germany.
Methods in molecular biology (Clifton, N.J.)
|August 28, 2025
まとめ
空気-液体インターフェース (ALI) モデルは,脂質ナノ粒子 (LNP) とポリマーナノ粒子を含む肺のsiRNA配送システムを評価するための高度なインビトロ肺シミュレーションを提供します.
科学分野:
- バイオテクノロジー
- ナノ医療
- 肺経薬剤投与
背景:
- 最初の小型の干渉RNA (siRNA) 脂質ナノ粒子 (LNP) 治療は2018年に承認され,siRNA療法が進歩しました.
- ポリメリック siRNA 配送システム (ポリプレックス,ミセルプレックス) は,スケーラビリティと適応性を研究しています.
- siRNA治療の肺投与は肝臓外での投与に問題があり,先進的な in vitro モデルが必要である.
研究 の 目的:
- 肺のsiRNA配送研究のための空気-液体インターフェース (ALI) モデルの概要を提示する.
- 高通量スクリーニングと3R原則の遵守のためのALIモデルの適性を強調する.
- ナノ粒子吸収と遺伝子ノックダウンを評価するALIモデルの適用について議論する.
主な方法:
- ALI細胞培養モデルの確立と培養
- ALIモデルの生理学的特徴の顕微鏡ベースの特徴付け.
- ALIモデルを用いたポリマーナノ粒子とLNPのインビトロ評価
主要な成果:
- ALIモデルは 粘液の産生や 緊密な結節のような 肺の重要な生理学的特徴を複製します
- これらのモデルは,肺伝達システムの in vitro 試験に適しています.
- アプリケーションには,ナノ粒子吸収と遺伝子ノックダウン効率の評価が含まれています.
結論:
- ALIモデルは,肺のsiRNA配送研究を進めるために不可欠です.
- ナノ粒子製剤の効率的な in vitro スクリーニングを可能にします
- これらのモデルは,新型の肝臓外 siRNA 治療法の開発をサポートしています.
関連する概念動画
01:23RNA Interference
RNA interference (RNAi) is a process in which a small non-coding RNA molecule blocks the post-transcriptional expression of a gene by binding to its messenger RNA (mRNA) and preventing the protein from being translated.
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
This process occurs naturally in cells, often through the activity of genomically-encoded microRNAs. Researchers can take advantage of this mechanism by introducing synthetic RNAs to deactivate specific genes for research or therapeutic purposes. For example, RNAi could be used...
02:30siRNA - Small Interfering RNAs
Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the ATP-dependent...
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the ATP-dependent...
02:57piRNA - Piwi-interacting RNAs
PIWI-interacting RNAs, or piRNAs, are the most abundant short non-coding RNAs. More than 20,000 genes have been found in humans that code for piRNAs while only 2000 genes have been found for miRNAs. piRNAs can act at the transcriptional and post-transcriptional levels and have a vital role in silencing transposable elements present in germ cells. They are also involved in epigenetic silencing and activation. Previously, they were thought to function only in germ cells but new evidence suggests...
02:15Experimental RNAi
RNA interference (RNAi) is a cellular mechanism that inhibits gene expression by suppressing its transcription or activating the RNA degradation process. The mechanism was discovered by Andrew Fire and Craig Mello in 1998 in plants. Today, it is observed in almost all eukaryotes, including protozoa, flies, nematodes, insects, parasites, and mammals. This precise cellular mechanism of gene silencing has been developed into a technique that provides an efficient way to identify and determine the...
02:30Small interfering RNAs (siRNA)
Small interfering RNAs, or siRNAs, are short regulatory RNA molecules that can silence genes post-transcriptionally, as well as the transcriptional level in some cases. siRNAs are important for protecting cells against viral infections and silencing transposable genetic elements.
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the ATP-dependent...
In the cytoplasm, siRNA is processed from a double-stranded RNA, which comes from either endogenous DNA transcription or exogenous sources like a virus. This double-stranded RNA is then cleaved by the ATP-dependent...