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Related Experiment Video

Updated: Jun 27, 2026

Chemically-blocked Antibody Microarray for Multiplexed High-throughput Profiling of Specific Protein Glycosylation in Complex Samples
13:21

Chemically-blocked Antibody Microarray for Multiplexed High-throughput Profiling of Specific Protein Glycosylation in Complex Samples

Published on: May 4, 2012

Pancreatic cancer serum detection using a lectin/glyco-antibody array method.

Chen Li1, Diane M Simeone, Dean E Brenner

  • 1Department of Chemistry, The University of Michigan, Ann Arbor, Michigan 48109, USA.

Journal of Proteome Research
|December 17, 2008
PubMed
Summary
This summary is machine-generated.

This study introduces a novel lectin glyco-antibody microarray for early pancreatic cancer detection. The method identifies unique protein glycosylation patterns in serum, showing high sensitivity and specificity for distinguishing cancer from other conditions.

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A Lectin HPLC Method to Enrich Selectively-glycosylated Peptides from Complex Biological Samples
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A Lectin HPLC Method to Enrich Selectively-glycosylated Peptides from Complex Biological Samples

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Last Updated: Jun 27, 2026

Chemically-blocked Antibody Microarray for Multiplexed High-throughput Profiling of Specific Protein Glycosylation in Complex Samples
13:21

Chemically-blocked Antibody Microarray for Multiplexed High-throughput Profiling of Specific Protein Glycosylation in Complex Samples

Published on: May 4, 2012

Printed Glycan Array: A Sensitive Technique for the Analysis of the Repertoire of Circulating Anti-carbohydrate Antibodies in Small Animals
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A Lectin HPLC Method to Enrich Selectively-glycosylated Peptides from Complex Biological Samples
20:23

A Lectin HPLC Method to Enrich Selectively-glycosylated Peptides from Complex Biological Samples

Published on: October 1, 2009

Area of Science:

  • Biochemistry
  • Oncology
  • Biomarker Discovery

Background:

  • Pancreatic cancer requires improved early detection methods for better patient outcomes.
  • Current diagnostic tools have limitations in sensitivity and specificity for early-stage disease.
  • Aberrant protein glycosylation is a hallmark of cancer and can serve as a biomarker.

Purpose of the Study:

  • To develop and validate a high-throughput lectin glyco-antibody microarray for detecting unique glycosylation patterns in pancreatic cancer serum.
  • To assess the potential of these patterns as early diagnostic biomarkers for pancreatic cancer.
  • To evaluate the method's ability to discriminate pancreatic cancer from benign conditions and healthy controls.

Main Methods:

  • Utilized lectin antibody microarrays to capture target glycoproteins from patient serum.
  • Employed a panel of biotinylated lectins (AAL, SNA, MAL, LCA, ConA) to detect differential glycosylation.
  • Performed on-plate digestion and MALDI QIT-TOF mass spectrometry for glycoprotein analysis.
  • Analyzed serum samples from normal controls, chronic pancreatitis, diabetes, and pancreatic cancer patients.

Main Results:

  • The lectin antibody microarray demonstrated excellent reproducibility.
  • The method successfully discriminated pancreatic cancer from other groups with high sensitivity and specificity.
  • A significant increase (69%) in Alpha-1-beta glycoprotein response to SNA lectin was observed in cancer samples compared to non-cancer groups.

Conclusions:

  • Differential glycosylation patterns detected by lectin glyco-antibody microarrays are promising biomarkers for early pancreatic cancer detection.
  • This high-throughput approach offers a sensitive and specific method for distinguishing pancreatic cancer.
  • Further validation is warranted to translate this finding into clinical practice.