Journal of Pathology and Translational Medicine

Original Article

Proto-oncogene Pokemon in thyroid cancer: a potential promoter of tumorigenesis in papillary thyroid carcinoma: Kyungseek Chang, Sung-Im Do, Kyungeun Kim, Seoung Wan Chae, In-gu Do, Hyun Joo Lee, Dong Hoon Kim, Jin Hee Sohn; J Pathol Transl Med. 2021;55(5):317-323. Published online August 9, 2021; DOI: https://doi.org/10.4132/jptm.2021.06.28

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Background
Pokemon is an oncogenic transcription regulator that plays a critical role in cellular differentiation. Although it has been found to be overexpressed in several types of cancer involving different organs, its role in thyroid gland has yet to be reported. The objective of this study was to evaluate the expression of Pokemon in papillary thyroid carcinoma (PTC) based on clinicopathological parameters.
Methods
Tissue microarray samples derived from patients with PTC or benign thyroid disease were used to evaluate Pokemon expression based on immunohistochemical analysis. Correlations of its expression with various clinicopathological parameters were then analyzed.
Results
Pokemon expression was observed in 22.0% of thyroid follicular cells from the normal group, 44.0% from the group with benign thyroid diseases, and 92.1% from the group with PTC (p < .001). The intensity of Pokemon expression was markedly higher in the PTC group. Pokemon expression level and PTC tumor size showed an inverse correlation. T1a tumors showed strong expression levels of Pokemon. However, larger tumors showed weak expression (p = .006).
Conclusions
Pokemon expression is associated with tumorigenesis of PTC, with expression showing an inverse correlation with PTC tumor size. This might be related to the negative regulation of aerobic glycolysis by Pokemon.

Citations

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Knockdown of FBI-1 Inhibits the Warburg Effect and Enhances the Sensitivity of Hepatocellular Carcinoma Cells to Molecular Targeted Agents via miR-3692/HIF-1α
Juan Liu, Chao Yang, Xiao-Mei Huang, Pan-Pan Lv, Ya-Kun Yang, Jin-Na Zhao, Si-Yuan Zhao, Wan-Jun Sun
Frontiers in Oncology.2021;[Epub] CrossRef

Brief Case Report

Traumatic Bowel Perforation and Inguinal Hernia Masking a Mesenteric Calcifying Fibrous Tumor: Dong Hyun Kim, Kyueng-Whan Min, Dong-Hoon Kim, Seoung Wan Chae, Jin Hee Sohn, Jung-Soo Pyo, Sung-Im Do, Kyungeun Kim, Hyun Joo Lee; J Pathol Transl Med. 2015;49(3):267-269. Published online May 15, 2015; DOI: https://doi.org/10.4132/jptm.2015.03.20

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Citations

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Calcifying Fibrous Tumor
Angeliki Chorti, Theodossis S. Papavramidis, Antonios Michalopoulos
Medicine.2016; 95(20): e3690. CrossRef

Case Report

Extranodal Follicular Dendritic Cell Sarcoma with Rapid Growth in Parapharynx: A Case Report: Jung-Soo Pyo, Guhyun Kang, Sung-Im Do, Seoung Wan Chae, Kyungeun Kim, Sang Hyuk Lee, Yoon-La Choi, Joon Hyuk Choi, Jin Hee Sohn, Dong-Hoon Kim; Korean J Pathol. 2012;46(3):306-310. Published online June 22, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.3.306

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Abstract PDF

Follicular dendritic cell sarcoma (FDCS) is a rare malignancy arising from the antigen-presenting cells in the lymph node and extranodal tissue. We describe a 31-year-old male patient who presented with a swelling of the left parapharynx. The radiologic findings showed a 4.7×4.5×1.9 cm-sized, ill-defined mass in the left parapharyngeal space. A fine-needle aspiration cytology was performed and it showed scattered, irregular, cohesive clusters of tumor cells with a spindle-to-ovoid shape with irregular contours in a background of lymphocytes. Based on these findings, a diagnosis of spindle cell neoplasm was made. The surgically resected tumor was composed of elongated, ovoid or polygonal cells showing positive immunohistochemistry for CD21, CD23, and CD35. Postoperatively, the residual tumor was observed to undergo a rapidly growth. There is an overlap in the cytologic and histologic findings between FDCS of the parapharynx and other tumors. Pathologists should therefore be aware of its characteristics not only to provide an accurate diagnosis but also to recommend the appropriate clinical management.

Citations

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Extranodal Follicular Dendritic Cell Sarcoma of the Head and Neck Region: A Clinicopathological Study of 7 Cases
Nasir Ud Din, Zubair Ahmad, Shabina Rahim, Karen Fritchie, Muhammad Usman Tariq, Arsalan Ahmed
International Journal of Surgical Pathology.2023; 31(6): 1067. CrossRef
Cytomorphology of follicular dendritic cell sarcoma: a report of 7 cases with an emphasis on the diagnostic challenges
Cody Weimholt, Jalal B. Jalaly, Cedric Bailey
Journal of the American Society of Cytopathology.2023; 12(3): 229. CrossRef
Follicular dendritic cells
Seham A. Abd El‐Aleem, Entesar Ali Saber, Neven M. Aziz, Hani El‐Sherif, Asmaa M. Abdelraof, Laiche Djouhri
Journal of Cellular Physiology.2022; 237(4): 2019. CrossRef
Clinicopathological characteristics of extranodal follicular dendritic cell sarcoma: A report of two cases
Xing Zhao, Dayong Sun, Gang Zhang
Oncology Letters.2021;[Epub] CrossRef
Cytological diagnosis of follicular dendritic cell sarcoma: A case report and review of literature
A. Dutta, P. Arun, P. Roy, I. Arun
Cytopathology.2018; 29(5): 461. CrossRef
Follicular dendritic cells and related sarcoma
Fabio Facchetti, Luisa Lorenzi
Seminars in Diagnostic Pathology.2016; 33(5): 262. CrossRef
Extranodal follicular dendritic cell sarcoma: A clinicopathological report of four cases and a literature review
RUI-FEN WANG, WEI HAN, LEI QI, LI-HUI SHAN, ZHENG-CAI WANG, LI-FENG WANG
Oncology Letters.2015; 9(1): 391. CrossRef
Follicular Dendritic Cell Sarcoma of Parapharyngeal Space: A Case Report and Review of the Literature
Turki Al-Hussain, Muhammad Saleem, Suresh Babu Velagapudi, Mohammad Anas Dababo
Head and Neck Pathology.2015; 9(1): 135. CrossRef
Clinical and pathological features of head and neck follicular dendritic cell sarcoma
Ji Li, Min-Li Zhou, Shui-Hong Zhou
Hematology.2015; 20(10): 571. CrossRef

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