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Datta M, Laronde DM, Rosin MP, Zhang L, Chan B, Guillaud M. Predicting progression of low-grade oral dysplasia using brushing based DNA ploidy and Chromatin Organization analysis. Cancer Prev Res (Phila) 2021; 14:1111-1118. [PMID: 34376461 DOI: 10.1158/1940-6207.capr-21-0134] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 05/28/2021] [Accepted: 07/28/2021] [Indexed: 11/16/2022]
Abstract
Most oral cancers arise from oral potentially malignant lesions, which show varying grades of dysplasia. Risk of progression increases with increasing grade of dysplasia, however risk prediction among oral low-grade dysplasia (LGDs) i.e., mild and moderate dysplasia can be challenging as only 5-15% transform. Moreover, grading of dysplasia is subjective and varies with the area of the lesion being biopsied. To date, no biomarkers or tools are used clinically to triage oral LGDs. This study utilizes a combination of DNA ploidy and chromatin organization (CO) scores from cells obtained from lesion brushings to identify oral LGDs at high-risk of progression. A total of 130 lesion brushings from patients with oral LGDs were selected of which 16 (12.3%) lesions progressed to severe dysplasia or cancer. DNA ploidy and CO scores were analyzed from nuclear features measured by our in-house DNA image cytometry (DNA-ICM) system and used to classify brushings into low risk and high risk. A total of 57 samples were classified as high-risk of which 13 were progressors. High-risk DNA brushing was significant for progression (P = 0.001) and grade of dysplasia (P = 0.004). Multivariate analysis showed high-risk DNA brushing showed 5.1 to 8-fold increased risk of progression, a stronger predictor than dysplasia grading and lesion clinical features. DNA-ICM can serve as a non-invasive, high throughput tool to identify high-risk lesions several years prior to transformation. This will help clinicians focus on such lesions while low-risk lesions may be spared from unnecessary biopsies.
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Affiliation(s)
- Madhurima Datta
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia
| | - Denise M Laronde
- Oral Biological and Medical Sciences, University of British Columbia
| | | | | | - Bertrand Chan
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia
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Dinčić M, Todorović J, Nešović Ostojić J, Kovačević S, Dunđerović D, Lopičić S, Spasić S, Radojević-Škodrić S, Stanisavljević D, Ilić AŽ. The Fractal and GLCM Textural Parameters of Chromatin May Be Potential Biomarkers of Papillary Thyroid Carcinoma in Hashimoto's Thyroiditis Specimens. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2020; 26:717-730. [PMID: 32588793 DOI: 10.1017/s1431927620001683] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Occasionally, Hashimoto's thyroiditis (HT) and papillary thyroid carcinoma (PTC) share similar nuclear features. The current study aims to quantify the differences between the investigated specimens of HT-associated PTC versus the HT alone, to reduce the subjective experience of an observer, by the use of fractal parameters as well as gray-level co-occurrence matrix (GLCM) textural parameters. We have analyzed 250 segmented nuclei per group (nn = 25 per patient and np = 10 patients per group) using the ImageJ software (NIH, Bethesda, MD, USA) as well as an in-house written code for the GLCM analysis. The mean values of parameters were calculated for each patient. The results demonstrated that the malignant cells from the HT-associated PTC specimens showed lower chromatin fractal dimension (p = 0.0321) and higher lacunarity (p = 0.0038) compared with the corresponding cells from the HT specimens. Also, there was a statistically significant difference between the investigated specimens, in the contrast, correlation, angular second moment, and homogeneity, of the GLCM corresponding to the visual texture of follicular cell chromatin. The differences in chromatin fractal and GLCM parameters could be integrated with other diagnostic methods for the improved evaluation of distinctive features of the HT-associated PTC versus the HT in cytology and surgical pathology specimens.
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Affiliation(s)
- Marko Dinčić
- Institute of Pathological Physiology, Faculty of Medicine, University of Belgrade, Dr Subotica 9, Belgrade11000, Serbia
| | - Jasna Todorović
- Institute of Pathological Physiology, Faculty of Medicine, University of Belgrade, Dr Subotica 9, Belgrade11000, Serbia
| | - Jelena Nešović Ostojić
- Institute of Pathological Physiology, Faculty of Medicine, University of Belgrade, Dr Subotica 9, Belgrade11000, Serbia
| | - Sanjin Kovačević
- Institute of Pathological Physiology, Faculty of Medicine, University of Belgrade, Dr Subotica 9, Belgrade11000, Serbia
| | - Duško Dunđerović
- Institute of Pathology, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Srđan Lopičić
- Institute of Pathological Physiology, Faculty of Medicine, University of Belgrade, Dr Subotica 9, Belgrade11000, Serbia
| | - Svetolik Spasić
- Institute of Pathological Physiology, Faculty of Medicine, University of Belgrade, Dr Subotica 9, Belgrade11000, Serbia
| | | | - Dejana Stanisavljević
- Institute of Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Andjelija Ž Ilić
- Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11080Zemun-Belgrade, Serbia
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