Methods and compositions are provided for specific aptamers and aptamer pools that bind biomarkers of interest such as microvesicle surface antigens or functional fragments of microvesicle surface antigens. In various embodiments, aptamers of the invention are used in diagnostic, prognostic, or theranostic processes to screen a biological sample for the presence or levels of biomarkers such as microvesicles that are determined to provide a diagnostic, prognostic, or theranostic readout. The diagnosis, prognosis, or theranosis may be related to cancer or other diseases and disorders. The invention also provides methods and composition to facilitate aptamer library screening and aptamer detection methods.
本发明提供了特异性适
配体和适
配体池的方法和组合物,它们能结合感兴趣的
生物标记物,如微囊表面抗原或微囊表面抗原的功能片段。在各种实施方案中,本发明的适
配体可用于诊断、预后或治疗过程,以筛选
生物样本中
生物标记物(如微囊)的存在或
水平,确定这些标记物以提供诊断、预后或治疗读数。诊断、预后或治疗可能与癌症或其他疾病和失调有关。本发明还提供了促进适
配体库筛选和适
配体检测方法的方法和组合物。