scholarly journals Lymphatic Mapping Establishes the Role of BRAF Gene Mutation in Papillary Thyroid Carcinoma

2006 ◽  
Vol 244 (5) ◽  
pp. 799-804 ◽  
Author(s):  
Joseph Kim ◽  
Armando E. Giuliano ◽  
Roderick R. Turner ◽  
Robyn E. Gaffney ◽  
Naoyuki Umetani ◽  
...  
2017 ◽  
Vol 7 (3) ◽  
pp. 241-247
Author(s):  
Ahmed Mohammad Salih ◽  
◽  
Mowafaq Masood Naqshabandi ◽  
Narmeen Adalat Hassan ◽  
◽  
...  

2021 ◽  
Author(s):  
Mohammadhossein Dadgarnia ◽  
Mohsen Abouii ◽  
Mohammadhossein Baradaranfar ◽  
Sedighe Vaziribozorg ◽  
Vahid Zand

This study was attempted to investigate the prevalence of BRAF gene mutation (V600E) in aspiration cytology of patients with suspected papillary thyroid carcinoma (PTC). Seventy-six patients suspected of having PTC who were referred for fine-needle aspiration (FNA) biopsy were included in this cross-sectional study. Ultrasound-guided FNA was taken from the thyroid masses, and samples were sent for cytologic evaluation. Simultaneously, the samples were sent to a genetic laboratory to check the status of BRAFV600E mutation. Patients with FNA positive for PTC were assigned in one group, and those with FNA negative for PTC were assigned to another group. Cytological and molecular results were compared with those of histopathology and sonography. The results showed that the prevalence of the BRAF gene (V600E) mutation in our study was 21.1% (16 out of 76 patients). In addition, the results showed a significant relationship between gene mutation and pathologic findings so that the highest gene mutation was significantly detected in patients with FNA positive for PTC (P=0.001). Also, our results showed a significant relationship between gene mutation and some sonographic findings (calcification, P=0.004) and no significant relation in the other sonographic findings (hypoechoic changes, P=1.12 and regular changes, P=0.194). According to the results of the present study, BRAF mutation (V600E) can be an effective indicator for definitive diagnosis and primary treatment of PTC in suspected cases.


2005 ◽  
Vol 36 (6) ◽  
pp. 694-697 ◽  
Author(s):  
Vítor Trovisco ◽  
Paula Soares ◽  
Ricardo Soares ◽  
João Magalhães ◽  
Pedro Sá-Couto ◽  
...  

2020 ◽  
Vol 13 ◽  
Author(s):  
Andra Piciu ◽  
Alexandru Mester ◽  
George Rusu ◽  
Doina Piciu

Background: Thyroid carcinoma represents a complex pathology that can still be considered a medical challenge, despite having a better prognosis and life expectancy than most other neoplasms, also the scenario of multiple malignancies involving thyroid cancer is nowadays a common reality. Materials and methods: We reviewed the literature regarding the aggressive presentation of synchronous thyroid and breast cancer. In the current paper we are reporting the case of a 59 years-old woman, diagnosed with invasive ductal breast carcinoma and papillary thyroid carcinoma, presenting a natural history of both aggressive synchronous tumors. At the moment of hospitalization, the diagnostic was breast carcinoma with multiple secondary lesions, suggestive for lung and bone metastases, and nodular goiter. Results: Searching the literature PUBMED with the terms “thyroid carcinoma and synchronous breast carcinoma we found 86 studies; introducing the term “aggressive” the result included 4 studies, among them none being relevant for aggressive and synchronous. A similar search was done in SCOPUS finding 92 documents and after introducing the term aggressive, the number of papers was 8, none being for the synchronous aggressive metastatic thyroid and breast carcinoma. The majority of imaging diagnostic tools were used in this particular medical case, in order to ensure the best potential outcome. The final diagnostic was papillary thyroid carcinoma with lung and unusual multiple bone metastases and synchronous invasive ductal breast carcinoma with subcutaneous metastases. Conclusion: The case illustrates the challenges in correct assessment of oncologic patients, despite the advances in medical imaging and technologies and underlines the essential role of nuclear medicine procedures in the diagnostic and therapy protocols.


2021 ◽  
Vol 22 (13) ◽  
pp. 6726
Author(s):  
Agata M. Gaweł ◽  
Maciej Ratajczak ◽  
Ewa Gajda ◽  
Małgorzata Grzanka ◽  
Agnieszka Paziewska ◽  
...  

Background: Thyroid carcinoma (TC) is the most common endocrine system malignancy, and papillary thyroid carcinoma (PTC) accounts for >80% of all TC cases. Nevertheless, PTC pathogenesis is still not fully understood. The aim of the study was to elucidate the role of the FRMD5 protein in the regulation of biological pathways associated with the development of PTC. We imply that the presence of certain genetic aberrations (e.g., BRAF V600E mutation) is associated with the activity of FRMD5. Methods: The studies were conducted on TPC1 and BCPAP (BRAF V600E) model PTC-derived cells. Transfection with siRNA was used to deplete the expression of FRMD5. The mRNA expression and protein yield were evaluated using RT-qPCR and Western blot techniques. Proliferation, migration, invasiveness, adhesion, spheroid formation, and survival tests were performed. RNA sequencing and phospho-kinase proteome profiling were used to assess signaling pathways associated with the FRMD5 expressional status. Results: The obtained data indicate that the expression of FRMD5 is significantly enhanced in BRAF V600E tumor specimens and cells. It was observed that a drop in intracellular yield of FRMD5 results in significant alternations in the migration, invasiveness, adhesion, and spheroid formation potential of PTC-derived cells. Importantly, significant divergences in the effect of FRMD5 depletion in both BRAF-wt and BRAF-mutated PTC cells were observed. It was also found that knockdown of FRMD5 significantly alters the expression of multidrug resistant genes. Conclusions: This is the first report highlighting the importance of the FRMD5 protein in the biology of PTCs. The results suggest that the FRMD5 protein can play an important role in controlling the metastatic potential and multidrug resistance of thyroid tumor cells.


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