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Related Experiment Video

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Phage-AgNPs complex as SERS probe for U937 cell identification.

Germana Lentini1, Enza Fazio2, Federica Calabrese1

  • 1Department of Biological and Environmental Sciences, University of Messina, Viale Ferdinando Stagno d'Alcontres 31, 98158 Messina, Italy.

Biosensors & Bioelectronics
|July 13, 2015
PubMed
Summary
This summary is machine-generated.

This study introduces a novel Surface Enhanced Raman Spectroscopy (SERS) probe using bacteriophage-silver nanoparticle networks for rapid U937 leukemic cell detection. This advancement aids in early cancer diagnosis and monitoring minimal residual disease.

Keywords:
Cell identificationMinimal residual diseasePhage displaySERSU937 cells

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Area of Science:

  • Biotechnology
  • Nanotechnology
  • Oncology

Background:

  • Early cancer diagnosis is crucial for patient survival and effective treatment.
  • Leukemic cells exhibit high heterogeneity, necessitating advanced detection methods.
  • Monitoring minimal residual disease requires sensitive and accurate diagnostic tools.

Purpose of the Study:

  • To develop a novel Surface Enhanced Raman Spectroscopy (SERS) probe for rapid and accurate identification of U937 leukemic cells.
  • To utilize molecular networks of bacteriophages and silver nanoparticles for enhanced SERS detection.
  • To explore the potential for early diagnosis and minimal residual disease monitoring in hematological malignancies.

Main Methods:

  • Screening of a 9-mer pVIII M13 phage display library against U937 cells to identify specific recognition peptides.
  • Assembly of selected phage clones with silver nanoparticles to create a molecular network.
  • Utilizing the phage-silver nanoparticle network as a SERS probe for in vitro U937 cell identification.

Main Results:

  • Identification of specific peptides that selectively recognize U937 leukemic cells.
  • Successful assembly of bacteriophage-silver nanoparticle networks for SERS signal generation.
  • Demonstration of the SERS probe's sensitivity for cell-type specific molecular targets.

Conclusions:

  • The proposed bacteriophage-silver nanoparticle SERS probe offers a highly sensitive and selective method for identifying hematological cancer cells.
  • This strategy holds significant potential for the early diagnosis of malignancy and the detection of minimal residual disease.
  • The developed biosensor platform can be applied to various human blood malignancies.