4.8 Article

Label-Free Histology and Evaluation of Human Pancreatic Cancer with Coherent Nonlinear Optical Microscopy

期刊

ANALYTICAL CHEMISTRY
卷 93, 期 46, 页码 15550-15558

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acs.analchem.1c03861

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资金

  1. National Natural Science Foundation of China [61975033, 81970418]
  2. Shanghai Municipal Science and Technology Major Project [2018SHZDZX01]
  3. Science and Technology Commission of Shanghai Municipality [18JC1410403]
  4. MOE Frontiers Center for Brain Science
  5. Medicine and Health Research Foundation of Zhejiang Province [2019RC006]
  6. Zhejiang Provincial Natural Science Foundation of China [LY20H130005]
  7. ZJLab

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The study shows that label-free coherent nonlinear optical microscopy with combined SRS and SHG can reveal key diagnostic features of both normal and cancerous pancreatic tissues, providing potential for rapid intraoperative diagnosis of pancreatic cancer and predictive value for postoperative pancreatic fistula.
Surgeries achieving maximal tumor resection remain the major effective treatment of pancreatic cancer. Rapid and precise intraoperative diagnosis of pancreatic tissues is critical for optimum surgical outcomes but is challenging for the current staining-based histological methods. We demonstrated that label-free coherent nonlinear optical microscopy with combined stimulated Raman scattering (SRS) and second harmonic generation (SHG) could reveal key diagnostic features of both normal and cancerous human pancreatic tissues. Adjacent pairs of tissue sections from resection margins of 37 patients were imaged by SRS and hematoxylin and eosin staining for direct comparison, demonstrating high diagnostic concordance (Cohen's kappa, kappa > 0.97) between them. Fresh unprocessed tissues showed well-preserved histoarchitectures including pancreatic ducts, islets, acini, and nerves. Moreover, the area ratios of collagen fibers were analyzed and found to correlate with the drainage pancreatic amylase level (odds ratio = 28.0, p = 0.0017). Our results indicated that SRS/SHG histology provides potential for rapid intraoperative diagnosis of pancreatic cancer as well as a predictive value of postoperative pancreatic fistula.

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