関連する実験動画
Updated: Mar 23, 2026

09:36
RNA Pull-down Procedure to Identify RNA Targets of a Long Non-coding RNA
Published on: April 10, 2018
26.5K
セリアック病の感受性に関連した長い非コーディングRNA
Ainara Castellanos-Rubio1, Nora Fernandez-Jimenez2, Radomir Kratchmarov1
1Department of Microbiology and Immunology, Columbia University, College of Physicians and Surgeons, New York, NY 10032, USA.
まとめ
新しい長いノンコーディングRNA (lncRNA) lnc13は炎症遺伝子を抑制する. 低血圧症患者および疾患に関連した変種における結合障害は,Inc13機能不全が炎症に寄与することを示唆する.
科学分野:
- 分子生物学
- 遺伝学
- 免疫学
背景:
- 長いノンコーディングRNA (lncRNA) は,多様な生物学的プロセスの重要な調節因子としてますます認識されています.
- 遺伝的に敏感な個体では グルテンによって引き起こされる 慢性的な小腸炎症です
研究 の 目的:
- lnc13と呼ばれる 新種の lncRNAを特定し特徴づけ
- 炎症性遺伝子発現を制御する lnc13 の調節メカニズムを解明する.
- セリアック病の病原性における lnc13機能障害の役割を調査する.
主な方法:
- lnc13 lncRNAの識別と特徴づけ
- lnc13と異質核リボヌクレオプロテインD (hnRNPD) の相互作用の分析
- 乳がん患者と健康な対照群からの小腸生検サンプルにおけるInc13発現の定量化.
- 乳がんに関連した lnc13変異の hnRNPDへの結合効率の評価.
主要な成果:
- Lnc13は,セリアック病に関連したハプロタイプを宿す lncRNAとして識別されました.
- Lnc13は,ホメオスタティックな条件下で hnRNPD に結合することによって,特定の炎症遺伝子の発現を抑制する.
- Lnc13のレベルは刺激によって低下し,抑制された遺伝子の発現が増加します.
- Lnc13の発現は,小腸疾患患者の小腸生検で有意に低下しています.
- lnc13のセリアック病に関連した変種は,野生型と比較して hnRNPDへの結合親和性が低下しています.
結論:
- lnc13のダウンレギュレーションは,セリアック疾患で観察される炎症プロセスに寄与する可能性があります.
- 疾患に関連した lnc13 変異体と hnRNPD の間の相互作用の障害は,単核酸多型性のセリアック病の病原性への寄与のための分子メカニズムを提供します.
- Lnc13は,セリアック病に関連する炎症の管理のための潜在的な治療目標です.
関連する概念動画
lncRNA - Long Non-coding RNAs
10.1K
In humans, more than 80% of the genome gets transcribed. However, only around 2% of the genome codes for proteins. The remaining part produces non-coding RNAs which includes ribosomal RNAs, transfer RNAs, telomerase RNAs, and regulatory RNAs, among other types. A large number of regulatory non-coding RNAs have been classified into two groups depending upon their length – small non-coding RNAs, such as microRNA, which are less than 200 nucleotides in length, and long non-coding RNA...
10.1K
lncRNA - Long Non-coding RNAs
3.8K
3.8K
Non-LTR Retrotransposons
14.0K
As the name suggests, non-LTR retrotransposons lack the long terminal repeats characteristic of the LTR retrotransposons. Additionally, both LTR and non-LTR retrotransposons use distinct mechanisms of mobilization. Non-LTR retrotransposons are further divided into two classes - Long interspersed nuclear elements (LINEs) and short interspersed nuclear elements (SINEs), both of which occur abundantly in most mammals, including humans. Some of the active non-LTR retrotransposons in humans are L1...
14.0K
RNA Splicing
61.3K
Splicing is the process by which eukaryotic RNA is edited before its translation into protein. The RNA strand transcribed from eukaryotic DNA is called the primary transcript. The primary transcripts that become mRNAs are called precursor messenger RNAs (pre-mRNAs). Eukaryotic pre-mRNA contains alternating sequences of exons and introns. Exons are nucleotide sequences that code for proteins, whereas introns are the non-coding regions. In RNA splicing, introns are removed and exons are bonded...
61.3K
Alternative RNA Splicing
26.1K
Alternative RNA splicing is the regulated splicing of exons and introns to produce different mature mRNAs from a single pre-mRNA. Unlike in constitutive splicing where a single gene produces a single type of mRNA, alternative splicing allows an organism to produce multiple proteins from a single gene and plays an important role in protein diversity.
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
There are five types of alternative RNA splicing that vary in the ways the pre-mRNA segments are removed or retained in the mature mRNA. The first...
26.1K
Translation
21.8K
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Proteins are...
Translation Produces the Building Blocks of Life
Proteins are...
21.8K
