DGCR8 Microprocessor Subunit Mutation and Expression Deregulation in Thyroid Lesions
Abstract
:1. Introduction
2. Results
2.1. c.1552G>A p.(E518K) in a Poorly Differentiated Thyroid Carcinoma
2.2. Deregulation of DGCR8 mRNA Expression in Follicular-Patterned Tumours
2.3. DGCR8 Immunoexpression in Thyroid Cancer
2.4. DGCR8 Expression, and Clinicopathological Associations
3. Discussion
4. Materials and Methods
4.1. Samples
4.2. DGCR8 Amplification and Genotyping
4.3. Quantitative PCR Analysis
4.4. Immunohistochemistry
4.5. Statistical Methods
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Acknowledgments
Conflicts of Interest
References
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Histological Subtypes | ||||||||
---|---|---|---|---|---|---|---|---|
Clinicopathological Variables * | FTA (n = 86) | MNG (n = 15) | FTC (n = 22) | cPTC (n = 44) | FV-PTC (n = 22) | OV-PTC (n = 14) | PDTC (n = 5) | ATC (n = 2) |
Age (mean, y/o) | 43.2 | 45.3 | 47.8 | 40.2 | 42.3 | 45 | 65.6 | N.D. |
Gender (female), n (%) | 69 (80.2) | 15 (100.0) | 16 (72.7) | 34 (77.3) | 22 (100.0) | 10 (71.4) | 4 (66.7) | N.D. |
Tumour size (mean, mm) | 35 | 23 | 40 | 25 | 33 | 38 | 51 | N.D. |
Lymphocytic infiltrate, n (%) | 20/67 (29.9) | N.D. | 3/14 (21.4) | 17/37 (45.9) | 7/17 (41.2) | 4/13 (30.8) | 0/5 (0.0) | N.D. |
Vascular invasion, n (%) | 0/70 (0.0) | N.D. | 8/17 (47.1) | 19/37 (51.4) | 5/18 (27.7) | 6/13 (46.2) | 2/3 (66.7) | N.D. |
Lymph node metastasis, n (%) | 0/1 (0.0) | N.D. | 0/7 (0.0) | 14/22 (63.6) | 5/6 (83.3) | 4/4 (100.0) | 2/3 (66.7) | N.D. |
Minimal extrathyroidal extension, n (%) | 0/32 (0.0) | N.D. | 1/14 (7.14) | 15/37 (40.5) | 5/18 (27.7) | 7/12 (58.3) | 2/5 (40.0) | 1/1 (100.0) |
Molecular characterization † | FTA | MNG | FTC | cPTC | FV-PTC | OV-PTC | PDTC | ATC |
BRAF, nm/nt (%) | 0/23 (0.0) | 0/2 (0.0) | 0/18 (0.0) | 18/42 (42.9) | 4/20 (20.0) | 4/13 (30.8) | 0/4 (0.0) | 0/1 (0.0) |
NRAS, nm/nt (%) | 4/86 (4.7) | 0/2 (0.0) | 4/21 (19.0) | 2/42 (4.8) | 3/21 (14.3) | 2/12 (16.7) | 0/4 (0.0) | 0/1 (0.0) |
RET/PTC, nm/nt (%) | 0/74 (0.0) | 0/2 (0.0) | 1/13 (7.7) | 5/36 (13.9) | 0/20 (0.0) | 2/14 (14.3) | 0/4 (0.0) | N.D. |
PAX8/PPARg, nm/nt (%) | 3/76 (3.9) | 0/2 (0.0) | 3/16 (18.8) | 0/41 (0.0) | 1/21 (4.8) | 0/14 (0.0) | 0/4 (0.0) | N.D. |
TERTp, nm/nt (%) | 0/84 (0.0) | 0/2 (0.0) | 0/17 (0.0) | 0/41 (0.0) | 0/20 (0.0) | 2/14 (14.3) | 1/4 (25.0) | 0/1 (0.0) |
DGCR8, nm/nt (%) | 0/86 (0.0) | 0/15 (0.0) | 0/22 (0.0) | 0/44 (0.0) | 0/22 (0.0) | 0/14 (0.0) | 1/5 (20.0) | 0/2 (0.0) |
Score | |||||||
---|---|---|---|---|---|---|---|
0 | 1 | 2 | 3 | 4 | 6 | 9 | |
Histotype n, (%) | |||||||
FTA n = 30 | 6 (20.0) | 5 (16.7) | 4 (13.3) | 2 (6.7) | 2 (6.7) | 6 (20.0) | 5 (16.7) |
FTC n = 15 | 3 (20.0) | 0 (0) | 2 (13.3) | 1 (6.7) | 2 (13.3) | 5 (33.3) | 2 (13.3) |
PTC n = 50 | 13 (26.0) | 3 (6.0) | 7 (14.0) | 2 (4.0) | 4 (8.0) | 14 (28.0) | 7 (14.0) |
PDTC n = 4 | 0 (0) | 1 (25.0) | 2 (50.0) | 0 (0) | 0 (0) | 0 (0) | 1 (25.0) |
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Rodrigues, L.; Canberk, S.; Macedo, S.; Soares, P.; Vinagre, J. DGCR8 Microprocessor Subunit Mutation and Expression Deregulation in Thyroid Lesions. Int. J. Mol. Sci. 2022, 23, 14812. https://doi.org/10.3390/ijms232314812
Rodrigues L, Canberk S, Macedo S, Soares P, Vinagre J. DGCR8 Microprocessor Subunit Mutation and Expression Deregulation in Thyroid Lesions. International Journal of Molecular Sciences. 2022; 23(23):14812. https://doi.org/10.3390/ijms232314812
Chicago/Turabian StyleRodrigues, Lia, Sule Canberk, Sofia Macedo, Paula Soares, and João Vinagre. 2022. "DGCR8 Microprocessor Subunit Mutation and Expression Deregulation in Thyroid Lesions" International Journal of Molecular Sciences 23, no. 23: 14812. https://doi.org/10.3390/ijms232314812