Journal
JOURNAL OF BIOMEDICAL OPTICS
Volume 15, Issue 4, Pages -Publisher
SPIE-SOC PHOTO-OPTICAL INSTRUMENTATION ENGINEERS
DOI: 10.1117/1.3463479
Keywords
fluorescence spectroscopy; selective excitation; optical biopsy; biochemical component in tissue; changes of relative contents of collagen and NADH; prostate cancer detection; multivariate curve resolution with alternating least squares (MCR-ALS)
Funding
- U.S. Army Medical Research and Material Command [W81XWH-08-1-0717, CUNY RF 47170-00-01]
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The fluorescence spectra of human cancerous and normal prostate tissues obtained by the selective excitation wavelength of 340 nm were measured. The contributions of principle biochemical components to tissue fluorescence spectra were investigated using the method of multivariate curve resolution with alternating least squares. The results show that there is a reduced contribution from the emission of collagen and increased contribution from nicotinamide adenine dinucleotide (NADH) in cancerous tissues as compared with normal tissue. This difference is attributed to the changes of relative contents of NADH and collagen during cancer development. This research may present a potential native biomarker for prostate cancer detection. (C) 2010 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3463479]
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