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疾病蛋白质组学

• To date, the proteome of these cells are not well characterized nor has the interplay between the cell types been established in health or disease.
• This remains a significant challenge as CV disease is the number one killer world wide.
存在问题和发展趋势
• 利用蛋白质组研究的人类疾病的范围虽然日趋扩大,但 仍停留在初级比较阶段。
– 进一步鉴定、验证,发展成应用于临床的生物标志物 – 开展全方位的蛋白质组相互作用网络的分析
• 进一步提高蛋白分离和鉴定的通量、灵敏度和规模; • 提高生物信息学用范围与准确率,进行信息综合,准
确地分析蛋白质的相互作用,界定相互作用连锁群;
• PTMs of myofilament proteins can directly impact on the contractility of the heart.
肌球蛋白重链(MHC): myosin heavy chain 肌球蛋白轻链-1,2(MLC1,2): myosin light chain-1,2 肌动蛋白:Actin 肌球蛋白结合蛋白C(MyBP-c): myosin binding protein C) 肌钙蛋白(TnT, TnI, TnC): troponin T, I ,C -原肌球蛋白(Tm): -tropomyosin 肌联蛋白: titin
• A simplified illustration of the cardiac myofilament proteins. The thick filament proteins consist of myosin heavy chain (MHC), myosin-binding protein C (MyBPC), and two myosin light chains (MLC1 and MLC2). The thin filament proteins consist of actin, tropomyosin (Tm), and the three components of troponin; troponin I (TnI), troponin C (TnC) and troponin T (TnT). Phosphorylation sites on the myofilament proteins are indicated with a small diamond. The large scaffolding protein, titin, which spans the sarcomere, is not included in this illustration.
• The myofilament proteins are highly regulated by a number of specific post-translational modifications (PTMs) some of which have been discovered through proteomic studies.
• 鉴定了一批肿瘤相关蛋白,为肿瘤的早期诊断、药靶的发现、疗效和预后的 判断提供了重要依据。
• 在心脏、肺部 、内分泌系统、神经系统疾病、药物成瘾性 、环境毒 理学 、传染病、内耳相关疾病等方面,蛋白质组研究成果也为其提 供了新的诊疗方向。
• 国内:重点在肝病、恶性肿瘤、心血管、神经系统疾病和新发传染病 等方面
Research Focus
1. The myofilament proteome. 2. Redox modifications in the cardiac
proteome. 3. Cardiac biomarkers. 4. Secretory microvesicles 5. Proteomics of the secretome
研究进展
• 肿瘤蛋白质组:
– 研究细胞的增殖、分化、异常转化、肿瘤形成 – 白血病、乳腺癌、结肠癌、膀胱癌、前列腺癌、肺癌、肾癌、肝细胞癌
和神经母细胞瘤等
• 联合激光捕获微切割技术(Laser capture mierodisseetion,LCM),直接从肿 瘤组织中提取纯肿瘤细胞, 以克服组织内异质性的问题 ,为肿瘤蛋白质组研 究提供了技术上的保障。
疾病蛋白质组学 disease proteomics
• 运用蛋白质组学研究手段,通过比较正常和病理情况下细 胞、组织或体液中蛋白质在组成成分、表达水平、表达位 置和修饰状态上的差异,寻找疾病诊断和预后的特异性蛋 白质(群),包括特异性抗原及相关抗原、受体、酶等,以 及药物治疗的靶标等。通过深入了解这些疾病特异性蛋白 质的结构和功能,揭示疾病过程中细胞内全部蛋白质的活 动规律,为多种疾病发生、发展机制的阐明和早期诊断及 治疗提供理论根据和解决途径。
1. The myofilament proteome
• The myofilament (肌丝)proteins are responsible for the contractile nature of the cardiac myocytes.
• the myofilament subproteome allows the heart to act as a pump.
二、心血管疾病蛋白质组学 Cardiovascular Proteomics
• the cardiovascular (CV) system is composed of a number of specialized cell types including cardiac myocytes, fibroblast, neurons, endothelial and smooth muscle cells and newly discovered stem and progenitor cells.
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