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Related Experiment Video

Updated: Sep 6, 2025

Manual Construction of a Tissue Microarray using the Tape Method and a Handheld Microarrayer
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Manual Construction of a Tissue Microarray using the Tape Method and a Handheld Microarrayer

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Manual Construction of a Tissue Microarray using the Tape Method and a Handheld Microarrayer.

Lee Wisner1, Brandon Larsen2, Alanna Maguire3

  • 1Department of Research, Mayo Clinic.

Journal of Visualized Experiments : Jove
|June 27, 2022
PubMed
Summary
This summary is machine-generated.

This study introduces a novel, low-cost method for constructing tissue microarrays (TMAs) using double-sided tape, ideal for limited formalin-fixed paraffin-embedded (FFPE) samples. This technique simplifies TMA creation, especially with non-ideal tissue blocks, enhancing research efficiency.

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Last Updated: Sep 6, 2025

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Area of Science:

  • Biotechnology
  • Histopathology
  • Molecular Biology

Background:

  • Tissue microarrays (TMAs) are crucial research tools enabling simultaneous analysis of multiple samples.
  • Standard TMA construction methods often require specific donor block dimensions (e.g., 4 mm core length).
  • Diagnostic procedures can result in "non-ideal" donor blocks with thicknesses less than 4 mm, posing construction challenges.

Purpose of the Study:

  • To present an alternative manual method for constructing TMAs.
  • To provide a protocol compatible with non-ideal donor blocks.
  • To offer a low-cost, rapid, and easy-to-use TMA construction technique.

Main Methods:

  • The study details the double-sided adhesive tape method for TMA construction.
  • This method is suitable for low-density TMAs (<50 cores).
  • Emphasis is placed on pathological review and post-construction validation.

Main Results:

  • The double-sided adhesive tape method is effective for constructing TMAs from non-ideal donor blocks.
  • This technique minimizes tissue usage and reduces reagent costs.
  • The protocol is user-friendly, rapid, and cost-effective.

Conclusions:

  • The double-sided adhesive tape method offers a viable alternative for TMA construction, particularly with challenging tissue samples.
  • This approach enhances the utility of TMAs in molecular and genomic studies.
  • Proper validation is critical for reliable TMA-based research.