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蛋白质组学及其在肿瘤研究中的应用 总被引:2,自引:0,他引:2
简要介绍了蛋白质组学的概念、研究方法及其在肿瘤研究中的应用.蛋白质组学研究直接定位于蛋白质水平,从整体、动态、定量的角度去研究基因的功能,是后基因组计划的一个重要组成部分.恶性肿瘤是一种多基因参与的复杂疾病,从蛋白质整体水平上研究恶性肿瘤将有助于进一步揭示恶性肿瘤的发病机制,发现恶肿瘤特异性的标志物及其药物治疗的靶标. 相似文献
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简要介绍了蛋白质组学的概念、研究方法及其在肿瘤研究中的应用.蛋白质组学研究直接定位于蛋白质水平,从整体、动态、定量的角度去研究基因的功能,是后基因组计划的一个重要组成部分.恶性肿瘤是一种多基因参与的复杂疾病,从蛋白质整体水平上研究恶性肿瘤将有助于进一步揭示恶性肿瘤的发病机制,发现恶性肿瘤特异性的标志物及其药物治疗的靶标. 相似文献
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应用蛋白质组技术已对正常人胎盘和大鼠肝线粒体蛋白质进行分离与鉴定,补充了线粒体蛋白质组数据库,并且通过比较蛋白质组学研究技术寻找病理条件下线粒体差异表达的蛋白质,为疾病的诊断和治疗提供作用靶标。随着蛋白质组技术的发展和完善,一些新方法也被应用于线粒体蛋白质的研究,推动了线粒体研究的发展。线粒体蛋白质组研究虽然已取得了一些成果,但线粒体蛋白质组数据库中的数据仍较匮乏,并且还有一些问题亟待解决和改善。 相似文献
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军事医学科学院 《中国科学:生命科学》2011,41(10):775-784
蛋白质组学是后基因组时代生命科学研究的热点和前沿领域.军事医学科学院是国内最早开展蛋白质组研究的单位之一,其蛋白质组学研究的发展不仅对中国蛋白质组研究起到重要的引领作用,也对国际蛋白质组学的发展做出了重要贡献.本文将重点介绍军事医学科学院的科学家在国际人类肝脏蛋白质组计划以及疾病蛋白质组、病原微生物蛋白质组等领域的研究成果. 相似文献
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综述了种子蛋白质与蛋白质组的研究, 主要介绍了种子发育与形成、种子休眠与萌发、种子保存与活力以及种子与环境相互作用的蛋白质与蛋白质组的研究。同时阐述了当今蛋白质组学在种子研究中的应用以及所取得的成果, 并展望了种子蛋白质组学的发展方向, 种子生物学的研究将从基因水平走向整体水平, 因此环境因子与种子蛋白质的相互作用是研究的重点。运用蛋白质组学将能揭示蛋白质的功能并明晰种子的生命机制。 相似文献
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种子蛋白质与蛋白质组的研究 总被引:11,自引:1,他引:10
综述了种子蛋白质与蛋白质组的研究,主要介绍了种子发育与形成、种子休眠与萌发、种子保存与活力以及种子与环境相互作用的蛋白质与蛋白质组的研究.同时阐述了当今蛋白质组学在种子研究中的应用以及所取得的成果,并展望了种子蛋白质组学的发展方向,种子生物学的研究将从基因水平走向整体水平,因此环境因子与种子蛋白质的相互作用是研究的重点.运用蛋白质组学将能揭示蛋白质的功能并明晰种子的生命机制. 相似文献
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Gibson BW 《The international journal of biochemistry & cell biology》2005,37(5):927-934
Mitochondria are one of the most complex of subcellular organelles and play key roles in many cellular functions including energy production, fatty acid metabolism, pyrimidine biosynthesis, calcium homeostasis, and cell signaling. In recent years, we and other groups have attempted to identify the complete set of proteins that are localized to human mitochondria as a way to better understand its cellular functions and how it communicates with other cell compartment in complex signaling pathways such as oxidative stress and apoptosis. Indeed, there is an increasing interest in understanding the molecular details of oxidative stress and the mitochondrial role in this process, as well as assessing how mitochondrial proteins become damaged or posttranslationally modified as a consequence of a major change in a cell's redox status. In this review, we report on the current status of the human mitochondrial proteome with an emphasis towards understanding how mitochondrial proteins, especially the proteins that make up the respiratory chain or oxidative phosphorylation (OXPHOS) enzymes, are modified in various models of age-related diseases such as cancer and Parkinson's disease (PD). 相似文献
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Mitochondria are central to cellular energetics, metabolism, and signaling. In this issue, Pagliarini et al. (2008) report the largest compendium of mammalian mitochondrial proteins to date. Together with proteomic studies in yeast, this study represents an important step toward the systematic characterization of the mitochondrial proteome and of mitochondrial diseases. 相似文献
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D. Allan Butterfield Erika M. Palmieri Alessandra Castegna 《Expert review of proteomics》2016,13(3):259-274
Mitochondria play a key role in eukaryotic cells, being mediators of energy, biosynthetic and regulatory requirements of these cells. Emerging proteomics techniques have allowed scientists to obtain the differentially expressed proteome or the proteomic redox status in mitochondria. This has unmasked the diversity of proteins with respect to subcellular location, expression and interactions. Mitochondria have become a research ‘hot spot’ in subcellular proteomics, leading to identification of candidate clinical targets in neurodegenerative diseases in which mitochondria are known to play pathological roles. The extensive efforts to rapidly obtain differentially expressed proteomes and unravel the redox proteomic status in mitochondria have yielded clinical insights into the neuropathological mechanisms of disease, identification of disease early stage and evaluation of disease progression. Although current technical limitations hamper full exploitation of the mitochondrial proteome in neurosciences, future advances are predicted to provide identification of specific therapeutic targets for neurodegenerative disorders. 相似文献
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Mitochondria are eukaryotic organelles that originated from a single bacterial endosymbiosis some 2 billion years ago. The transition from the ancestral endosymbiont to the modern mitochondrion has been accompanied by major changes in its protein content, the so-called proteome. These changes included complete loss of some bacterial pathways, amelioration of others and gain of completely new complexes of eukaryotic origin such as the ATP/ADP translocase and most of the mitochondrial protein import machinery. This renewal of proteins has been so extensive that only 14-16% of modern mitochondrial proteome has an origin that can be traced back to the bacterial endosymbiont. The rest consists of proteins of diverse origin that were eventually recruited to function in the organelle. This shaping of the proteome content reflects the transformation of mitochondria into a highly specialized organelle that, besides ATP production, comprises a variety of functions within the eukaryotic metabolism. Here we review recent advances in the fields of comparative genomics and proteomics that are throwing light on the origin and evolution of the mitochondrial proteome. 相似文献
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Jing Li Tanxi Cai Peng Wu Ziyou Cui Xiulan Chen Junjie Hou Zhensheng Xie Peng Xue Linan Shi Pingsheng Liu John R. Yates III Fuquan Yang 《Proteomics》2009,9(19):4539-4553
Mitochondria play essential roles in cell physiological processes including energy production, metabolism, ion homeostasis, cell growth, aging and apoptosis. Proteomic strategies have been applied to the study of mitochondria since 1998; these studies have yielded decisive information about the diverse physiological functions of the organelle. As an ideal model biological system, the nematode Caenorhabditis elegans has been widely used in the study of several diseases, such as metabolic diseases and cancer. However, the mitochondrial proteome of C. elegans remains elusive. In this study, we purified mitochondria from C. elegans and performed a comprehensive proteomic analysis using the shotgun proteomic approach. A total of 1117 proteins have been identified with at least two unique peptides. Their physicochemical and functional characteristics, subcellular locations, related biological processes, and associations with human diseases, especially Parkinson's disease, are discussed. An orthology comparison was also performed between C. elegans and four other model organisms for a general depiction of the conservation of mitochondrial proteins during evolution. This study will provide new clues for understanding the role of mitochondria in the physiological and pathological processes of C. elegans. 相似文献
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线粒体是哺乳动物细胞内重要细胞器,不仅通过氧化磷酸化产生ATP为细胞提供能量,也参与调节钙离子稳态、活性氧(reactive oxygen species,ROS)的产生、细胞应激反应和细胞死亡等过程,其功能障碍不仅导致多种人类疾病的发生,而且也能降低动物卵母细胞质量和早期胚胎发育能力.大量证据表明,线粒体的功能依赖于... 相似文献
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Mitochondria are major players on the production of energy, and host several key reactions involved in basic metabolism and biosynthesis of essential molecules. Currently, the majority of nucleus-encoded mitochondrial proteins are unknown even for model plant Arabidopsis. We reported a computational framework for predicting Arabidopsis mitochondrial proteins based on a probabilistic model, called Naive Bayesian Network, which integrates disparate genomic data generated from eight bioinformatics tools, multiple orthologous mappings, protein domain properties and co-expression patterns using 1,027 microarray profiles. Through this approach, we predicted 2,311 candidate mitochondrial proteins with 84.67% accuracy and 2.53% FPR performances. Together with those experimental confirmed proteins, 2,585 mitochondria proteins (named CoreMitoP) were identified, we explored those proteins with unknown functions based on protein-protein interaction network (PIN) and annotated novel functions for 26.65% CoreMitoP proteins. Moreover, we found newly predicted mitochondrial proteins embedded in particular subnetworks of the PIN, mainly functioning in response to diverse environmental stresses, like salt, draught, cold, and wound etc. Candidate mitochondrial proteins involved in those physiological acitivites provide useful targets for further investigation. Assigned functions also provide comprehensive information for Arabidopsis mitochondrial proteome. 相似文献