Raman-Enhanced Spectroscopy (RESpect) Probe for Childhood Non-Hodgkin Lymphoma

Lymphoma Non-Hodgkin Lymphoma Raman Spectroscopy.

Authors

  • Melissa Agsalda-Garcia Department of Tropical Medicine, Medical Microbiology, and Pharmacology, University of Hawaii, Hawaii, United States
  • Tiffany Shieh Department of Tropical Medicine, Medical Microbiology, and Pharmacology, University of Hawaii, Hawaii, United States
  • Ryan Souza Department of Tropical Medicine, Medical Microbiology, and Pharmacology, University of Hawaii, Hawaii, United States
  • Natalie Kamada Department of Tropical Medicine, Medical Microbiology, and Pharmacology, University of Hawaii, Hawaii, United States
  • Nicholas Loi Department of Tropical Medicine, Medical Microbiology, and Pharmacology, University of Hawaii, Hawaii, United States
  • Robert Oda Department Molecular Biosciences & Bioengineering, University of Hawaii, Hawaii, United States
  • Tayro Acosta-Maeda Hawaii Institute of Geophysics and Planetology, University of Hawaii, Hawaii, United States
  • So Yung Choi Biostatistics Core, Department of Complementary and Integrative Medicine, University of Hawaii, Hawaii, United States
  • Eunjung Lim Biostatistics Core, Department of Complementary and Integrative Medicine, University of Hawaii, Hawaii, United States
  • Anupam Misra Hawaii Institute of Geophysics and Planetology, University of Hawaii, Hawaii, United States
  • Bruce Shiramizu
    bshirami@hawaii.edu
    Department of Tropical Medicine, Medical Microbiology, and Pharmacology, University of Hawaii, Hawaii, United States

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Raman-enhanced spectroscopy (RESpect) probe, which enhances Raman spectroscopy technology through a portable fiber-optic device, characterizes tissues and cells by identifying molecular chemical composition showing distinct differences/similarities for potential tumor markers or diagnosis. In a feasibility study with the ultimate objective to translate the technology to the clinic, a panel of pediatric non-Hodgkin lymphoma tissues and non-malignant specimens had RS analyses compared between standard Raman spectroscopy microscope instrument and RESpect probe. Cryopreserved tissues were mounted on front-coated aluminum mirror slides and analyzed by standard Raman spectroscopy and RESpect probe. Principal Component Analysis revealed similarities between non-Hodgkin lymphoma subtypes but not follicular hyperplasia. Standard Raman spectroscopy and RESpect probe fingerprint comparisons demonstrated comparable primary peaks. Raman spectroscopic fingerprints and peaks of pediatric non-Hodgkin lymphoma subtypes and follicular hyperplasia provided novel avenues to pursue diagnostic approaches and identify potential new therapeutic targets. The information could inform new insights into molecular cellular pathogenesis. Translating Raman spectroscopy technology by using the RESpect probe as a potential point-of-care screening instrument has the potential to change the paradigm of screening for cancer as an initial step to determine when a definitive tissue biopsy would be necessary.