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Related Concept Videos

DNA Microarrays02:34

DNA Microarrays

Microarrays are high-throughput and relatively inexpensive assays that can be automated to analyze large quantities of data at a time. They are used in genome-wide studies to compare gene or protein expression under two varied conditions, such as healthy and diseased states. Microarrays consist of glass or silica slides on which probe molecules are covalently attached through surface functionalization. Most commonly, the slides are prepared through the chemisorption of silanes to silica...

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Related Experiment Video

Updated: May 15, 2026

A Next-generation Tissue Microarray (ngTMA) Protocol for Biomarker Studies
09:32

A Next-generation Tissue Microarray (ngTMA) Protocol for Biomarker Studies

Published on: September 23, 2014

An alternative high output tissue microarray technique.

Yuan Shi1, Deming He, Yingyong Hou

  • 1Department of Pathology, Zhongshan Hospital, Fudan University, Fenglin Road #180, Shanghai, P.R. China.

Diagnostic Pathology
|January 23, 2013
PubMed
Summary
This summary is machine-generated.

This study presents an improved tissue microarray (TMA) method to increase tissue sample analysis throughput. The new technique overcomes traditional block thickness limitations, enabling higher productivity for research applications.

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Area of Science:

  • Pathology
  • Biotechnology
  • Molecular Biology

Background:

  • Tissue microarray (TMA) is a high-throughput tool for in situ tissue analysis.
  • Traditional TMA donor block thickness limits productivity.
  • An improved TMA method is introduced for broader tissue sample applicability.

Purpose of the Study:

  • To present an improved high-output tissue microarray (TMA) method.
  • To overcome limitations of traditional TMA donor block thickness.
  • To enable broader application of TMA to diverse tissue samples.

Main Methods:

  • Preparation of a large recipient block with 88 lattices.
  • Creation of tissue rods from paraffin-embedded donor blocks using a custom knife.
  • Manual arraying of tissue rods into a pre-softened recipient block.

Main Results:

  • The developed TMA method yields well-defined array configurations.
  • Good tissue morphology and preservation of proteins and DNA were achieved.
  • A single TMA block can generate 500-1000 TMA sections.

Conclusions:

  • This novel method offers a low-cost and time-saving alternative for high-output TMA.
  • The improved technique enhances productivity in tissue microarray analysis.
  • Applicable to a wider range of tissue samples for accelerated research.