期刊
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
卷 415, 期 7, 页码 1239-1263出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s00216-022-04174-5
关键词
Extracellular vesicles; Isolation methods; Biofluids
Exosomes are valuable sources of disease biomarkers and therapeutic tools. However, isolating extracellular vesicles with exosome-like characteristics from certain biofluids is still challenging due to the complexity and specific properties of each biofluid. This review summarizes and discusses comparative studies on different exosome isolation methods from human biofluids, including challenges, physical properties, and potential variation sources.
Exosomes emerged as valuable sources of disease biomarkers and new therapeutic tools. However, extracellular vesicles isolation with exosome-like characteristics from certain biofluids is still challenging which can limit their potential use in clinical settings. While ultracentrifugation-based procedures are the gold standard for exosome isolation from cell cultures, no unique and standardized method for exosome isolation from distinct body fluids exists. The complexity, specific composition, and physical properties of each biofluid constitute a technical barrier to obtain reproducible and pure exosome preparations, demanding a detailed characterization of both exosome isolation and characterization methods. Moreover, some isolation procedures can affect downstream proteomic or RNA profiling analysis. This review compiles and discussed a set of comparative studies addressing distinct exosome isolation methods from human biofluids, including cerebrospinal fluid, plasma, serum, saliva, and urine, also focusing on body fluid specific challenges, physical properties, and other potential variation sources. This summarized information will facilitate the choice of exosome isolation methods, based on the type of biological samples available, and hopefully encourage the use of exosomes in translational and clinical research.
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