関連する実験動画
Updated: Jul 11, 2026
08:12
Intramyocardial Cell Delivery: Observations in Murine Hearts
Published on: January 24, 2014
心臓内皮細胞の分子プロファイリング
Lianglin Zhang1, Jason A Hoffman, Erkki Ruoslahti
1Cancer Research Center, The Burnham Institute, La Jolla, CA 92037, USA.
Circulation
|September 8, 2005
まとめ
研究者は,ファグディスプレイを使用して,新しい心臓特異の内皮マーカーを特定しました. これらの発見は,心臓病に対する新しい診断と治療のターゲットを提供し,心血管研究を進めています.
科学分野:
- 心血管生物学 心血管生物学
- 分子生物学は分子生物学である.
- バイオテクノロジー バイオテクノロジー
背景:
- 血管を覆う内皮細胞は,組織特異の細胞表面タンパク質を発現させることができる.
- これらのユニークなマーカーを特定することは,組織特異の生物学を理解し,ターゲットを絞った治療法を開発するために重要です.
研究 の 目的:
- 新しい,心臓特有の内皮マーカーを発見するために.
- 特に心臓血管系とその対応する内皮受容体を標的とするペプチドを特定する.
主な方法:
- in vivoのファグ選択とバクテリアの2-ハイブリデーションの新しい組み合わせを使用しました.
- 標的ペプチドとその受容体を同時に識別するために,心臓のcDNAライブラリを使用しました.
- 独立した方法を使用して,心臓内皮細胞における選択性タンパク質発現が確認され,定量化されました.
主要な成果:
- 5つの心臓を標的とするペプチドとその対応する受容体を特定した.
- 心臓内皮細胞における4つのタンパク質の選択的発現が確認され,対照群と比較して最大300倍の特異性があります.
- 特定されたタンパク質は,低レベルでの心筋細胞および他の組織でも発現することが観察されました.
結論:
- 心血管内皮の新たなマーカーの発見.
- 心臓パレンキマと内皮の間の共通遺伝子発現パターンを明らかにした.
- ハートホーミングペプチドとその受容体は,診断/治療薬および薬剤発見の潜在的なターゲットです.
関連する概念動画
01:27Anatomy of the Heart
The human heart is made up of three layers of tissue that are surrounded by the pericardium, a membrane that protects and confines the heart. The outermost layer, closest to the pericardium, is the epicardium. The pericardial cavity separates the pericardium from the epicardium. Beneath the epicardium is the myocardium, the middle layer, and the endocardium, the innermost layer. There are four chambers of the heart: the right atrium, the right ventricle, the left atrium, and the left ventricle.
01:15Layers of the Heart Wall
The heart wall comprises three distinct layers: the epicardium, myocardium, and endocardium. The outermost layer, the epicardium, is the visceral layer of the serous pericardium, featuring a thin, transparent mesothelial surface and an inner layer of areolar connective tissue with fat deposits that increase with age.
The myocardium, the thickest layer, consists of cardiac muscle cells interconnected by intercalated discs and crisscrossing connective tissue fibers. These muscle fibers contract...
The myocardium, the thickest layer, consists of cardiac muscle cells interconnected by intercalated discs and crisscrossing connective tissue fibers. These muscle fibers contract...
01:20Anatomy of the Heart
The heart is a hollow, muscular organ approximately the size of a fist, consisting of four chambers. It is enclosed in the pericardium, a fibrous sac with two layers: the visceral and parietal pericardium, separated by a fluid-filled space containing serous fluid to reduce friction.
The heart has three layers: the innermost endocardium, the muscular myocardium, and the outer epicardium, all working together for optimal cardiac function.
Chambers of the Heart
The heart is made up of four...
The heart has three layers: the innermost endocardium, the muscular myocardium, and the outer epicardium, all working together for optimal cardiac function.
Chambers of the Heart
The heart is made up of four...
01:20Blood Studies for Cardiovascular System I: Cardiac Biomarkers
Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...