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Related Experiment Video

Updated: Jun 3, 2026

Extracellular Protein Microarray Technology for High Throughput Detection of Low Affinity Receptor-Ligand Interactions
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[Optimizing the detection of soluble transferrin receptor with protein microarray].

Jiyong Yin1, Junsheng Huo, Jing Sun

  • 1Institute for Nutrition and Food Safety, Chinese Center for Disease Control and Prevention, Beijing 100050, China.

Wei Sheng Yan Jiu = Journal of Hygiene Research
|March 26, 2011
PubMed
Summary

Optimized protein microarray assay conditions enable precise quantification of soluble transferrin receptor (sTfR). This advancement provides a reliable method for measuring sTfR levels, crucial for various diagnostic applications.

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Area of Science:

  • Biotechnology
  • Immunology
  • Assay Development

Context:

  • Soluble transferrin receptor (sTfR) is a key biomarker in iron metabolism and various diseases.
  • Accurate and reliable measurement of sTfR is essential for clinical diagnostics.
  • Existing protein microarray assays require optimization for sensitive and specific sTfR detection.

Purpose:

  • To optimize protein microarray assay conditions for the quantitative measurement of soluble transferrin receptor (sTfR).
  • To establish a robust and reproducible protein microarray system for sTfR analysis.

Summary:

  • Utilized a microarrayer for antibody printing and a double antibody sandwich technique for sTfR detection.
  • Identified optimal conditions including antibody concentrations (0.25 mg/ml probe, 0.18 µg/ml detection antibody), blocking buffer (3% skim milk), and secondary antibody.

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  • Achieved low detection limits (0.253 ng/ml lowest, 0.78 ng/ml biological) and a high correlation coefficient (r = 0.99699) for sTfR quantification.

    • Impact:

    • Successfully optimized a quantitative protein microarray system for sTfR measurement.
    • Provides a validated platform for sensitive and specific sTfR detection.
    • Facilitates improved diagnostic capabilities and research in conditions related to sTfR levels.