関連する実験動画
Updated: Feb 13, 2026

08:39
Quantification of Circular RNAs Using Digital Droplet PCR
Published on: September 16, 2022
4.1K
デジタルドロップレットPCRを用いた細胞質不適合因子mRNAのカウント.
Lore Van Vlaenderen1, William R Conner2, J Dylan Shropshire1
1Department of Biological Sciences, Lehigh University, Bethlehem, Pennsylvania, USA.
Microbiology spectrum
|February 12, 2026
まとめ
新しいRT-ddPCRアッセイは,個々の昆虫におけるWolbachia cifAおよびcifB mRNAの低レベルを正確に測定します. これらのツールは,病気を媒介する蚊の制御に不可欠なサイトプラズマ不適合性 (CI) の強さを理解するのに役立ちます.
科学分野:
- 微生物学 微生物学とは
- 遺伝学 遺伝学とは
- エントモロジー エントモロジー学
背景:
- ウォルバキア菌は昆虫に広く存在し,細胞プラズマ不適合性 (CI) を通して宿主集団に影響を与えます.
- cifB mRNAレベルに関連したCI強度は,Wolbachiaの拡散と病原体制御に不可欠ですが,低トランスクリプトの豊富さのために測定することは困難です.
- RT-qPCRのような既存の方法は,組織を集約し,個々の変化を遮断する必要があります.
研究 の 目的:
- ウォルバキアの希少なcifAおよびcifBmRNAを定量化するための非常に敏感なアッセイを開発する.
- 個々の昆虫組織におけるこれらのトランスクリプトの正確な測定を可能にするために.
- CIの変異に関する研究を支援し,Wolbachiaベースの害虫および疾病管理戦略を最適化します.
主な方法:
- Wolbachia cifAとcifBのmRNA検出のための4つのRT-ddPCRアッセイの開発と検証.
- 合成スパイクインRNAまたはDrosophila melanogaster参照遺伝子を用いた正常化.
- 多種多様なWolbachia株に広く適用できるように設計されたアッセイ.
主要な成果:
- 検知限界は1反応あたり約1 cifAと3 cifBのコピーに達した.
- 希少なトランスクリプトの定量化のための高い感度,正確さ,精度を示しています.
- Drosophila melanogasterでの使用のための検証されたアッセイ,他の種への可能性.
結論:
- 開発されたRT-ddPCRアッセイは,個々の昆虫の分子レベルでCIを研究するための強力なツールを提供します.
- これらの方法は,CI強度に影響を与える要因の理解を深めるでしょう.
- このアッセイは,病原菌の伝播阻害のためにウォルバキアを用いた蚊対策プログラムに役立つことが期待されています.
キーワード:
ドロソフィラ (Drosophila) とはRT-ddPCRRRRRRRRRRRRRT-ddPCRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRウルバキア (Wolbachia) とは ウルバキア (Wolbachia) とは ウルバキア (Wolbachia) とはサイトプラズマ不適合性シンビオシスシンビオシス関連する概念動画
Regulated mRNA Transport
7.0K
In eukaryotes, transcription and translation are compartmentalized; an mRNA is first synthesized in the nucleus and then selectively transported to the cytoplasm for protein synthesis. Before transport, a pre-mRNA undergoes several steps of post-transcriptional modifications including splicing, 5' capping, and the addition of a poly-adenine tail. Various proteins bind to the pre-mRNA during these modifications. The mRNA transport takes place with the help of multiple proteins playing...
7.0K
Nuclear Export of mRNA
8.8K
Before mRNAs are exported to the cytoplasm, it is crucial to check each mRNA for structural and functional integrity. Eukaryotic cells use several different mechanisms, collectively known as mRNA surveillance, to look for irregularities in mRNAs. Irregular or aberrant mRNA are rapidly degraded by various enzymes. If a defective mRNA escapes the surveillance, it would be translated into a protein which would either be non-functional or not function properly. One of the primary irregularities in...
8.8K
Cytoplasm
91.5K
The cytoplasm consists of organelles and a framework of protein scaffolds called the cytoskeleton suspended in an aqueous solution, the cytosol. The cytosol is a rich broth of water, ions, salts, and various organic molecules.
Protein Folding and Misfolding
The cytoplasm is the location for several cellular processes, including protein synthesis and folding. The aqueous nature of the cytosol promotes protein folding such that the hydrophobic amino acid side chains are buried in the protein...
Protein Folding and Misfolding
The cytoplasm is the location for several cellular processes, including protein synthesis and folding. The aqueous nature of the cytosol promotes protein folding such that the hydrophobic amino acid side chains are buried in the protein...
91.5K
Cytoplasm
8.4K
The cytoplasm consists of organelles and a framework of protein scaffolds called the cytoskeleton suspended in an aqueous solution, the cytosol. The cytosol is a rich broth of water, ions, salts, and various organic molecules.
Protein Folding and Misfolding
The cytoplasm is the location for several cellular processes, including protein synthesis and folding. The aqueous nature of the cytosol promotes protein folding such that the hydrophobic amino acid side chains are buried in the protein...
Protein Folding and Misfolding
The cytoplasm is the location for several cellular processes, including protein synthesis and folding. The aqueous nature of the cytosol promotes protein folding such that the hydrophobic amino acid side chains are buried in the protein...
8.4K
mRNA Stability and Gene Expression
6.7K
The structure and stability of mRNA molecules regulates gene expression, as mRNAs are a key step in the pathway from gene to protein. In eukaryotes, the half-life of mRNA varies from a few minutes up to several days. mRNA stability is essential in growth and development. The absence of the proteins regulating its stability, such as tristetraprolin in mice, can cause systemic issues, including bone marrow overgrowth, inflammation, and autoimmunity.
Cis-acting Elements involved in mRNA stability
Cis-acting Elements involved in mRNA stability
6.7K
Nonsense-mediated mRNA Decay
11.9K
The Upf proteins that carry out nonsense-mediated decay (NMD) are found in all eukaryotic organisms, including humans. Each protein has an individual role, but they need to work in collaboration. Upf1 is an ATP-dependent RNA helicase that unwinds the RNA helix. Because Upf1 can unwind any RNA, Upf2 and Upf3 are required to help Upf1 discriminate between nonsense and normal mRNAs.
Usually, Upf3 binds to an Exon Junction Complex (EJC) at mRNA splice sites. If a ribosome fully translates the mRNA,...
Usually, Upf3 binds to an Exon Junction Complex (EJC) at mRNA splice sites. If a ribosome fully translates the mRNA,...
11.9K

