Pfizer Global Research, Groton, CT, USA.
Mass Spectrom Rev. 2010 Sep-Oct;29(5):830-44. doi: 10.1002/mas.20269.
Protein glycosylation plays an important role in a multitude of biological processes such as cell-cell recognition, growth, differentiation, and cell death. It has been shown that specific glycosylation changes are key in disease progression and can have diagnostic value for a variety of disease types such as cancer and inflammation. The complexity of carbohydrate structures and their derivatives makes their study a real challenge. Improving the isolation, separation, and characterization of carbohydrates and their glycoproteins is a subject of increasing scientific interest. With the development of new stationary phases and molecules that have affinity properties for glycoproteins, the isolation and separation of these compounds have advanced significantly. In addition to detection with mass spectrometry, the microarray platform has become an essential tool to characterize glycan structure and to study glycosylation-related biological interactions, by using probes as a means to interrogate the spotted or captured glycosylated molecules on the arrays. Furthermore, the high-throughput and reproducible nature of microarray platforms have been highlighted by its extensive applications in the field of biomarker validation, where a large number of samples must be analyzed multiple times. This review covers a brief survey of the other experimental methodologies that are currently being developed and used to study glycosylation and emphasizes methodologies that involve the use of microarray platforms. This review describes recent advances in several options of microarray platforms used in glycoprotein analysis, including glycoprotein arrays, glycan arrays, lectin arrays, and antibody/lectin arrays. The translational use of these arrays in applications related to characterization of cells and biomarker discovery is also included.
蛋白质糖基化在多种生物过程中发挥着重要作用,例如细胞-细胞识别、生长、分化和细胞死亡。已经表明,特定的糖基化变化是疾病进展的关键,并且对多种疾病类型(如癌症和炎症)具有诊断价值。碳水化合物结构及其衍生物的复杂性使得它们的研究成为一个真正的挑战。提高碳水化合物及其糖蛋白的分离、分离和特性鉴定是科学研究日益关注的课题。随着对糖蛋白具有亲和特性的新型固定相和分子的发展,这些化合物的分离和分离取得了重大进展。除了使用质谱进行检测外,微阵列平台已成为表征聚糖结构和研究糖基化相关生物相互作用的重要工具,通过使用探针作为询问点来研究阵列上点样或捕获的糖基化分子。此外,微阵列平台的高通量和可重复性已通过其在生物标志物验证领域的广泛应用得到了强调,在该领域中必须多次分析大量样本。本文综述了目前正在开发和使用的研究糖基化的其他实验方法,并强调了涉及使用微阵列平台的方法。本文描述了几种用于糖蛋白分析的微阵列平台的最新进展,包括糖蛋白微阵列、糖基化微阵列、凝集素微阵列和抗体/凝集素微阵列。还包括这些阵列在与细胞表征和生物标志物发现相关的应用中的转化使用。