リボシクリブ媒介性心血管毒性の血清プロテオミクス: 探索的症例対照研究
Oraianthi Fiste1, Martina Samiotaki2, Efstathios Manios1
1Department of Clinical Therapeutics & Laboratory, National and Kapodistrian University of Athens, Alexandra Hospital, Athens, Greece.
Proteomics. Clinical applications
|August 29, 2025
まとめ
乳がん薬であるリボシクリブは,患者の10%未満で心血管毒性 (CVT) を引き起こします. プロテオミクスは,CVTのリスクを予測するタンパク質を特定し,乳がん患者のパーソナライズされた予防戦略を支援しました.
科学分野:
- 腫瘍学
- 心臓病科
- プロテオミクス
背景:
- リボシクリブを含むサイクリン依存キナーゼ4 / 6阻害剤は,HR+ HER2転移性乳がんに不可欠です.
- リボシクリブに関連した心血管性毒性 (CVT) は,さらなる特徴づけを必要とします.
- リボシクリブ誘発のCVTの分子メカニズムを理解することは,患者の管理に極めて重要です.
研究 の 目的:
- リボシクリブを投与された患者における治療に関連するCVTの発生率とスペクトルを評価する.
- DIA LC- MS/ MSを用いて,CVTを経験する患者で,差異的に発現するタンパク質を特定する.
- リボシクリブに関連した心血管疾患の潜在的予測バイオマーカーの調査.
主な方法:
- リボシクリブで治療された成人を対象とした,単一センターでの研究.
- CVTの発生率,タイプ,タイミングに関する臨床データ収集
- 血清プロテオミクスの分析は,データ独立の液体染色体-タンデム質量スペクトロメトリ (DIA LC-MS/MS) を用いて,症例と対照群を比較する.
主要な成果:
- 62人の被験者のうちCFTの症例は5例 (8. 06%) であり,追跡期間の中央値は27. 2ヶ月であった.
- 観察されたCVTには,QTc延長,短期間性不血症発作,深静脈血栓症,昏睡,心帯出血が含まれていた.
- プロテオミクスは144の異なる発現のタンパク質を特定し,免疫反応や代謝などの経路が著しく影響を受けた.
結論:
- リボシクリブ誘発のCVTは稀ではなく,QTc延長を超えた様々な臨床的症状を呈する.
- プロテオミク分析により,CVTのリスクの高い患者を特定するための潜在的予測バイオマーカーが明らかになりました.
- リボシクリブを服用している乳がん患者の個別化された心血管予防戦略を支援するために,より大きなコホートでのさらなる検証が必要である.
関連する概念動画
01:20Blood Studies for Cardiovascular System I: Cardiac Biomarkers
332
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...
332
01:25Blood Studies for Cardiovascular System III: Serum Lipid Profile
291
Understanding serum lipids is crucial for maintaining cardiovascular health and preventing heart disease and stroke.
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
Serum lipids are fats and fatty substances in the blood and are crucial for various bodily functions, including energy storage, cellular structure, and hormone production. Serum lipids consist of cholesterol, triglycerides, and phospholipids.
Cholesterol is a soft, fat-like substance found in all body cells. It is crucial for producing hormones, vitamin D, and substances that aid...
291
01:23Types of Biopharmaceutical Studies: Controlled and Non-Controlled Approaches
174
Biopharmaceutical studies constitute a vital field aiming to enhance drug delivery methods and refine therapeutic approaches, drawing upon diverse interdisciplinary knowledge. In research methodologies, the choice between controlled and non-controlled studies significantly influences the study's reliability and accuracy.
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
Non-controlled studies, commonly employed for initial exploration, lack a control group, rendering them susceptible to biases and external influences. In contrast,...
174
01:19Blood Studies for Cardiovascular System II: CRP, Hcy, and Cardiac Natriuretic Peptide Markers
213
Cardiac biomarkers are critical in diagnosing, prognosing, and managing cardiovascular diseases. Routine measurement of specific biomarkers such as B-type natriuretic peptide (BNP), C-reactive protein (CRP), and homocysteine (Hcy) is common practice in clinical settings to evaluate heart function and predict cardiovascular events.
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
These markers indicate stress or strain on the heart muscle:
Natriuretic Peptides (BNP)
Cardiac myocytes produce these hormones in response to ventricular stretching...
213
01:33Proteomics
7.9K
A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term...
7.9K
01:21Cancer Survival Analysis
448
Cancer survival analysis focuses on quantifying and interpreting the time from a key starting point, such as diagnosis or the initiation of treatment, to a specific endpoint, such as remission or death. This analysis provides critical insights into treatment effectiveness and factors that influence patient outcomes, helping to shape clinical decisions and guide prognostic evaluations. A cornerstone of oncology research, survival analysis tackles the challenges of skewed, non-normally...
448