1
|
Niazi A, Parvin P, Jafargholi A, Basam MA, Khodabakhshi Z, Bavali A, Kamyab Hesari K, Sohrabizadeh Z, Hassanzadeh T, Shirafkan Dizaj L, Amiri R, Heidari O, Aghaei M, Atyabi F, Ehtesham A, Moafi A. Discrimination of normal and cancerous human skin tissues based on laser-induced spectral shift fluorescence microscopy. Sci Rep 2022; 12:20927. [PMID: 36463297 PMCID: PMC9719548 DOI: 10.1038/s41598-022-25055-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 11/23/2022] [Indexed: 12/07/2022] Open
Abstract
A homemade spectral shift fluorescence microscope (SSFM) is coupled with a spectrometer to record the spectral images of specimens based on the emission wavelength. Here a reliable diagnosis of neoplasia is achieved according to the spectral fluorescence properties of ex-vivo skin tissues after rhodamine6G (Rd6G) staining. It is shown that certain spectral shifts occur for nonmelanoma/melanoma lesions against normal/benign nevus, leading to spectral micrographs. In fact, there is a strong correlation between the emission wavelength and the sort of skin lesions, mainly due to the Rd6G interaction with the mitochondria of cancerous cells. The normal tissues generally enjoy a significant red shift regarding the laser line (37 nm). Conversely, plenty of fluorophores are conjugated to unhealthy cells giving rise to a relative blue shift i.e., typically SCC (6 nm), BCC (14 nm), and melanoma (19 nm) against healthy tissues. In other words, the redshift takes place with respect to the excitation wavelength i.e., melanoma (18 nm), BCC (23 nm), and SCC (31 nm) with respect to the laser line. Consequently, three data sets are available in the form of micrographs, addressing pixel-by-pixel signal intensity, emission wavelength, and fluorophore concentration of specimens for prompt diagnosis.
Collapse
Affiliation(s)
- A. Niazi
- grid.411368.90000 0004 0611 6995Department of Physics and Energy Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
| | - P. Parvin
- grid.411368.90000 0004 0611 6995Department of Physics and Energy Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
| | - A. Jafargholi
- grid.411368.90000 0004 0611 6995Department of Physics and Energy Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran ,grid.83440.3b0000000121901201Department of Electronic and Electrical Engineering, University College London (UCL), London, England, UK
| | - M. A. Basam
- grid.411368.90000 0004 0611 6995Department of Physics and Energy Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
| | - Z. Khodabakhshi
- grid.440804.c0000 0004 0618 762XFaculty of Physics, Shahrood University of Technology, Shahrood, Iran
| | - A. Bavali
- grid.411368.90000 0004 0611 6995Department of Physics and Energy Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
| | - K. Kamyab Hesari
- grid.411705.60000 0001 0166 0922Department of Dermatopathology, Razi Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Z. Sohrabizadeh
- grid.411368.90000 0004 0611 6995Department of Physics and Energy Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
| | - T. Hassanzadeh
- grid.411368.90000 0004 0611 6995Department of Physics and Energy Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
| | - L. Shirafkan Dizaj
- grid.411368.90000 0004 0611 6995Department of Physics and Energy Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
| | - R. Amiri
- grid.415733.7Department of Pathology, Razi Hospital, POX:1199663911, Tehran, Iran
| | - O. Heidari
- grid.411368.90000 0004 0611 6995Department of Physics and Energy Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
| | - M. Aghaei
- grid.411368.90000 0004 0611 6995Department of Physics and Energy Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran ,grid.5947.f0000 0001 1516 2393Department of Ocean Operations and Civil Engineering, Norwegian University of Science and Technology (NTNU), 6009 Ålesund, Norway
| | - F. Atyabi
- grid.411705.60000 0001 0166 0922Nanotechnology Research Center, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
| | - A. Ehtesham
- grid.4367.60000 0001 2355 7002Radiation Oncology Department, School of Medicine Washington University, St. Louis, USA
| | - A. Moafi
- grid.411368.90000 0004 0611 6995Department of Physics and Energy Engineering, Amirkabir University of Technology, P.O. Box 15875-4413, Tehran, Iran
| |
Collapse
|
3
|
Yamamoto N, Kawaguchi K, Fujihara H, Hasebe M, Kishi Y, Yasukawa M, Kumagai K, Hamada Y. Detection accuracy for epithelial dysplasia using an objective autofluorescence visualization method based on the luminance ratio. Int J Oral Sci 2017; 9:e2. [PMID: 29125138 PMCID: PMC5775331 DOI: 10.1038/ijos.2017.37] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/21/2017] [Indexed: 11/07/2022] Open
Abstract
The autofluorescence visualization method (AVM) uses blue excitation light to assist in the diagnosis of epithelial dysplasia. It detects epithelial dysplasia as a black area, which is known as fluorescence visualization loss (FVL). In this study, we evaluated the detection accuracy for epithelial dysplasia of the tongue using the objective AVM and assessed its possible clinical utility. Seventy-nine tongue specimens clinically suspected to have leukoplakia or squamous cell carcinoma (SCC) were analyzed. First, the AVM was subjectively performed using the Visually Enhanced Lesion scope (VELscope), and the iodine-staining method was then performed. After biopsy, the histopathological results and the luminance ratio between the lesion and healthy tissue were compared, and a receiver operating characteristic curve was created. The cutoff value for the objective AVM was determined; the lesion was considered FVL-positive or -negative when the luminance ratio was higher or lower than the cutoff value, respectively. The histopathological diagnoses among the 79 specimens were SCC (n=30), leukoplakia with dysplasia (n=34), and leukoplakia without dysplasia (n=15). The cutoff value of the luminance ratio was 1.62, resulting in 66 FVL-positive and 13 FVL-negative specimens. The luminance ratio was significantly higher in the epithelial dysplasia-positive than -negative group (P<0.000 1). The objective AVM showed much higher consistency between histopathological results than did the two methods (kappa statistic=0.656). In conclusion, objective autofluorescence visualization has a potential as an auxiliary method for diagnosis of epithelial dysplasia.
Collapse
Affiliation(s)
- Nanami Yamamoto
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
| | - Koji Kawaguchi
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
| | - Hisako Fujihara
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan.,Department of Oral Hygiene, Tsurumi Junior College, Yokohama, Japan
| | - Mitsuhiko Hasebe
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
| | - Yuta Kishi
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
| | - Masaaki Yasukawa
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
| | - Kenichi Kumagai
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
| | - Yoshiki Hamada
- Department of Oral and Maxillofacial Surgery, School of Dental Medicine, Tsurumi University, Yokohama, Japan
| |
Collapse
|
4
|
Devi S, Ghosh N, Pradhan A. A technique for correction of attenuations in synchronous fluorescence spectroscopy. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY 2015; 151:1-9. [PMID: 26134713 DOI: 10.1016/j.jphotobiol.2015.06.019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/21/2014] [Revised: 06/07/2015] [Accepted: 06/24/2015] [Indexed: 12/22/2022]
Abstract
Synchronous fluorescence spectroscopy is an efficient technique for decoupling fluorophores which are masked in fluorescence spectroscopy due to overlapping of dominant fluorophores. By choosing appropriate offsets between excitation and emission wavelengths during signal acquisition from turbid samples, responses of individual fluorophores are highlighted as sharp peaks by using this technique. Some of the peaks may, however, still be missed due to wavelength dependent absorption and scattering effects. In this study a correction technique is used to extract such hidden signatures. The technique is validated using tissue phantoms with known concentrations of fluorophores, absorbers and scatterers. On the basis of validation studies on single and combination of two fluorophores, it is found that lower offsets display better recovery due to minimal influence of absorption by blood. Among the different offsets, 55 nm is found to be optimal for investigation of cervical precancers.
Collapse
Affiliation(s)
- Seema Devi
- Department of Physics, Indian Institute of Technology, Kanpur 208016, India
| | - Nirmalya Ghosh
- Indian Institute of Science Education and Research Kolkata, Mohanpur Campus, 741252, India
| | - Asima Pradhan
- Department of Physics, Indian Institute of Technology, Kanpur 208016, India; Center for Lasers and Photonics, Indian Institute of Technology, Kanpur 208016, India.
| |
Collapse
|
5
|
Zang X, Jones CM, Long TQ, Monge ME, Zhou M, Walker LD, Mezencev R, Gray A, McDonald JF, Fernández FM. Feasibility of detecting prostate cancer by ultraperformance liquid chromatography-mass spectrometry serum metabolomics. J Proteome Res 2014; 13:3444-54. [PMID: 24922590 DOI: 10.1021/pr500409q] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Prostate cancer (PCa) is the second leading cause of cancer-related mortality in men. The prevalent diagnosis method is based on the serum prostate-specific antigen (PSA) screening test, which suffers from low specificity, overdiagnosis, and overtreatment. In this work, untargeted metabolomic profiling of age-matched serum samples from prostate cancer patients and healthy individuals was performed using ultraperformance liquid chromatography coupled to high-resolution tandem mass spectrometry (UPLC-MS/MS) and machine learning methods. A metabolite-based in vitro diagnostic multivariate index assay (IVDMIA) was developed to predict the presence of PCa in serum samples with high classification sensitivity, specificity, and accuracy. A panel of 40 metabolic spectral features was found to be differential with 92.1% sensitivity, 94.3% specificity, and 93.0% accuracy. The performance of the IVDMIA was higher than the prevalent PSA test. Within the discriminant panel, 31 metabolites were identified by MS and MS/MS, with 10 further confirmed chromatographically by standards. Numerous discriminant metabolites were mapped in the steroid hormone biosynthesis pathway. The identification of fatty acids, amino acids, lysophospholipids, and bile acids provided further insights into the metabolic alterations associated with the disease. With additional work, the results presented here show great potential toward implementation in clinical settings.
Collapse
Affiliation(s)
- Xiaoling Zang
- School of Chemistry and Biochemistry, ‡College of Computing, §School of Biology, Integrated Cancer Research Center, and ∥Parker H. Petit Institute of Bioengineering and Biosciences, Georgia Institute of Technology , Atlanta, Georgia 30332, United States
| | | | | | | | | | | | | | | | | | | |
Collapse
|