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Comparison of isolation methods of exosomes and exosomal RNA from cell culture medium and serum

  • Authors:
    • Yue-Ting Tang
    • Yi-Yao Huang
    • Lei Zheng
    • Si-Hua Qin
    • Xu-Ping Xu
    • Tai-Xue An
    • Yong Xu
    • Ying-Song Wu
    • Xiu-Mei Hu
    • Bao-Hong Ping
    • Qian Wang
  • View Affiliations / Copyright

    Affiliations: Department of Laboratory Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China, Institute of Antibody Engineering, School of Biotechnology, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China, Department of Hui Qiao, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, P.R. China
    Copyright: © Tang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 834-844
    |
    Published online on: July 24, 2017
       https://doi.org/10.3892/ijmm.2017.3080
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Abstract

Exosomes are cell-derived vesicles and are abundant in biological fluids; they contain RNA molecules which may serve as potential diagnostic biomarkers in ‘precision medicine’. To promote the clinical application of exosomal RNA (exoRNA), many isolation methods must be compared and validated. Exosomes in cell culture medium (CCM) and serum may be isolated using ultracentrifugation (UC), ExoQuick or Total Exosome Isolation Reagent (TEI), and exoRNA may be extracted using TRIzol-LS, SeraMir, Total Exosome RNA Isolation (TER), HiPure Liquid RNA/miRNA kit (HLR), miRNeasy or exoRNeasy. ExoRNA was assessed using NanoDrop, Bioanalyzer 2100, quantitative polymerase chain reaction and high-throughput sequencing. UC showed the lowest recovery of particles, but the highest protein purity for exosome isolation. For isolation of exoRNA, we found that combinations of the TEI and TER methods resulted in high extraction efficiency and purity of small RNA obtained using CCM. High yield and a narrow size distribution pattern of small RNA were shown in exoRNA isolated by exoRNeasy from serum. In RNA profile analysis, the small RNA constituent ratio, miRNA content and amount varied as a result of methodological differences. This study showed that different methods may introduce variations in the concentration, purity and size of exosomes and exoRNA. Herein we discuss the advantages and disadvantages of each method and their application to different materials, therefore providing a reference according to research design.
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Copy and paste a formatted citation
Spandidos Publications style
Tang Y, Huang Y, Zheng L, Qin S, Xu X, An T, Xu Y, Wu Y, Hu X, Ping B, Ping B, et al: Comparison of isolation methods of exosomes and exosomal RNA from cell culture medium and serum. Int J Mol Med 40: 834-844, 2017.
APA
Tang, Y., Huang, Y., Zheng, L., Qin, S., Xu, X., An, T. ... Wang, Q. (2017). Comparison of isolation methods of exosomes and exosomal RNA from cell culture medium and serum. International Journal of Molecular Medicine, 40, 834-844. https://doi.org/10.3892/ijmm.2017.3080
MLA
Tang, Y., Huang, Y., Zheng, L., Qin, S., Xu, X., An, T., Xu, Y., Wu, Y., Hu, X., Ping, B., Wang, Q."Comparison of isolation methods of exosomes and exosomal RNA from cell culture medium and serum". International Journal of Molecular Medicine 40.3 (2017): 834-844.
Chicago
Tang, Y., Huang, Y., Zheng, L., Qin, S., Xu, X., An, T., Xu, Y., Wu, Y., Hu, X., Ping, B., Wang, Q."Comparison of isolation methods of exosomes and exosomal RNA from cell culture medium and serum". International Journal of Molecular Medicine 40, no. 3 (2017): 834-844. https://doi.org/10.3892/ijmm.2017.3080
Copy and paste a formatted citation
x
Spandidos Publications style
Tang Y, Huang Y, Zheng L, Qin S, Xu X, An T, Xu Y, Wu Y, Hu X, Ping B, Ping B, et al: Comparison of isolation methods of exosomes and exosomal RNA from cell culture medium and serum. Int J Mol Med 40: 834-844, 2017.
APA
Tang, Y., Huang, Y., Zheng, L., Qin, S., Xu, X., An, T. ... Wang, Q. (2017). Comparison of isolation methods of exosomes and exosomal RNA from cell culture medium and serum. International Journal of Molecular Medicine, 40, 834-844. https://doi.org/10.3892/ijmm.2017.3080
MLA
Tang, Y., Huang, Y., Zheng, L., Qin, S., Xu, X., An, T., Xu, Y., Wu, Y., Hu, X., Ping, B., Wang, Q."Comparison of isolation methods of exosomes and exosomal RNA from cell culture medium and serum". International Journal of Molecular Medicine 40.3 (2017): 834-844.
Chicago
Tang, Y., Huang, Y., Zheng, L., Qin, S., Xu, X., An, T., Xu, Y., Wu, Y., Hu, X., Ping, B., Wang, Q."Comparison of isolation methods of exosomes and exosomal RNA from cell culture medium and serum". International Journal of Molecular Medicine 40, no. 3 (2017): 834-844. https://doi.org/10.3892/ijmm.2017.3080
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