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- Title
Developing New Diagnostic Tools Based on SERS Analysis of Filtered Salivary Samples for Oral Cancer Detection.
- Authors
Borșa, Rareș-Mario; Toma, Valentin; Onaciu, Anca; Moldovan, Cristian-Silviu; Mărginean, Radu; Cenariu, Diana; Știufiuc, Gabriela-Fabiola; Dinu, Cristian-Mihail; Bran, Simion; Opriș, Horia-Octavian; Văcăraș, Sergiu; Onișor-Gligor, Florin; Sentea, Dorin; Băciuț, Mihaela-Felicia; Iuga, Cristina-Adela; Știufiuc, Rareș-Ionuț
- Abstract
Cancer still represents one of the biggest challenges in current medical practice. Among different types of cancer, oral cancer has a huge impact on patients due to its great visibility, which is more likely to create social stigma and increased anxiety. New early diagnose methods are still needed to improve treatment efficiency and patients' life quality. Raman/SERS (Surface Enhanced Raman Spectroscopy) spectroscopy has a unique and powerful potential for detecting specific molecules that can become priceless biomarkers in different pathologies, such as oral cancer. In this study, a batch of saliva samples obtained from a group of 17 patients with oro-maxillofacial pathologies compared with saliva samples from 18 healthy donors using the aforementioned methods were evaluated. At the same time, opiorphin, potassium thiocyanate and uric acid were evaluated as potential specific biomarkers for oro-maxillofacial pathologies using multivariate analysis. A careful examination of SERS spectra collected on saliva samples showed that the spectra are dominated by the vibrational bands of opiorphin, potassium thiocyanate and uric acid. Given the fact that all these small molecules are found in very small amounts, we filtrated all the samples to get rid of large molecules and to improve our analysis. By using solid plasmonic substrates, we were able to gain information about molecular concentration and geometry of interaction. On the other hand, the multivariate analysis of the salivary spectra contributed to developing a new detection method for oral cancer.
- Subjects
ORAL cancer; SERS spectroscopy; EARLY detection of cancer; MOLECULAR shapes; URIC acid; FLAME photometry; MAXILLOFACIAL prosthesis
- Publication
International Journal of Molecular Sciences, 2023, Vol 24, Issue 15, p12125
- ISSN
1661-6596
- Publication type
Article
- DOI
10.3390/ijms241512125