Quantitative and Multiplex Detection of Extracellular Vesicle-Derived MicroRNA via Rolling Circle Amplification within Encoded Hydrogel Microparticles

Dana Al Sulaiman, Nidhi Juthani, Patrick S. Doyle*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Extracellular vesicle-derived microRNA (EV-miRNA) represent a promising cancer biomarker for disease diagnosis and monitoring. However, existing techniques to detect EV-miRNA rely on complex, bias-prone strategies, and preprocessing steps, making absolute quantification highly challenging. This work demonstrates the development and application of a method for quantitative and multiplex detection of EV-miRNA, via rolling circle amplification within encoded hydrogel particles. By a one-pot extracellular vesicle lysis and microRNA capture step, the bias and losses associated with standard RNA extraction techniques is avoided. The system offers a large dynamic range (3 orders of magnitude), ease of multiplexing, and a limit of detection down to 2.3 zmol (46 × 10−18 m), demonstrating its utility in clinical applications based on liquid biopsy tests. Furthermore, orthogonal measurements of EV concentrations coupled with the direct, absolute quantification of miRNA in biological samples results in quantitative measurements of miRNA copy numbers per volume sample, and per extracellular vesicle.

Original languageEnglish (US)
Article number2102332
JournalAdvanced healthcare materials
Volume11
Issue number10
DOIs
StatePublished - May 18 2022

Bibliographical note

Funding Information:
The authors gratefully acknowledge funding from the National Institutes of Health (NIH) R01 grant (No. 1R01CA235740‐01A1) and the Natural Sciences & Engineering Research Council (NSERC) of Canada. This work was supported in part by the Koch Institute Support (core) Grant No. P30‐CA14051 from the National Cancer Institute. They thank the Koch Institute's Robert A. Swanson (1969) Biotechnology Center for technical support, specifically the nanotechnology materials core.

Funding Information:
The authors gratefully acknowledge funding from the National Institutes of Health (NIH) R01 grant (No. 1R01CA235740-01A1) and the Natural Sciences & Engineering Research Council (NSERC) of Canada. This work was supported in part by the Koch Institute Support (core) Grant No. P30-CA14051 from the National Cancer Institute. They thank the Koch Institute's Robert A. Swanson (1969) Biotechnology Center for technical support, specifically the nanotechnology materials core.

Publisher Copyright:
© 2022 The Authors. Advanced Healthcare Materials published by Wiley-VCH GmbH.

Keywords

  • biomarkers
  • cancer
  • extracellular vesicles
  • hydrogels
  • liquid biopsies
  • microRNA

ASJC Scopus subject areas

  • Biomaterials
  • Biomedical Engineering
  • Pharmaceutical Science

Fingerprint

Dive into the research topics of 'Quantitative and Multiplex Detection of Extracellular Vesicle-Derived MicroRNA via Rolling Circle Amplification within Encoded Hydrogel Microparticles'. Together they form a unique fingerprint.

Cite this