Journal of Pathology and Translational Medicine

Original Articles

Differential MicroRNA Expression between EGFR T790M and L858R Mutated Lung Cancer: Ji Yeon Kim, Woo Jeong Lee, Ha Young Park, Ahrong Kim, Dong Hoon Shin, Chang Hun Lee; J Pathol Transl Med. 2018;52(5):275-282. Published online August 16, 2018; DOI: https://doi.org/10.4132/jptm.2018.07.29

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Background
MicroRNAs (miRNAs) are short, non-coding RNAs that mediate post-transcriptional gene regulation. They are commonly deregulated in human malignancies, including non-small cell lung cancer (NSCLC). The aim of this study is to investigate miRNA expression in T790M-mutated NSCLC resistant to epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors.
Methods
Six cases of resected NSCLC harboring the T790M mutation were examined. We performed miRNA time polymerase chain reaction (PCR) array profiling using EGFR T790M-mutated NSCLC and L858R-mutated NSCLC. Once identified, miRNAs that were differentially expressed between the two groups were validated by quantitative real-time polymerase chain reaction (qRT-PCR).
Results
miRNA PCR array profiling revealed three up-regulated miRNAs whose expression levels were altered 4.0-fold or more in the EGFR T790M mutation group than in the L858R group: miR-1 (fold change, 4.384), miR-196a (fold change, 4.138), and miR-124 (fold change, 4.132). The three differentially expressed miRNAs were validated by qRT-PCR, and they were found to be overexpressed in the T790M group relative to L858R group. In particular, expression levels of miR-1 and miR-124 were significantly higher in the T790M group (p-value of miR-1 = .004, miR-124 = .007, miR-196a = .096).
Conclusions
MiR-1, miR-124, and miR-196a are overexpressed in EGFR T790M mutated NSCLC.

Citations

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Whole exome sequencing and MicroRNA profiling of lung adenocarcinoma identified risk prediction features for tumors at stage I and its substages
Hao Ho, Sung-Liang Yu, Hsuan-Yu Chen, Shin-Sheng Yuan, Kang-Yi Su, Yi-Chiung Hsu, Chung-Ping Hsu, Cheng-Yen Chuang, Ya-Hsuan Chang, Yu-Cheng Li, Chiou-Ling Cheng, Gee-Chen Chang, Pan-Chyr Yang, Ker-Chau Li
Lung Cancer.2023; 184: 107352. CrossRef
Dynamic Evaluation of Circulating miRNA Profile in EGFR-Mutated NSCLC Patients Treated with EGFR-TKIs
Alessandro Leonetti, Mjriam Capula, Roberta Minari, Giulia Mazzaschi, Alessandro Gregori, Btissame El Hassouni, Filippo Papini, Paola Bordi, Michela Verzè, Amir Avan, Marcello Tiseo, Elisa Giovannetti
Cells.2021; 10(6): 1520. CrossRef
Generation of osimertinib-resistant cells from epidermal growth factor receptor L858R/T790M mutant non-small cell lung carcinoma cell line
Nalini Devi Verusingam, Yi-Chen Chen, Heng-Fu Lin, Chao-Yu Liu, Ming-Cheng Lee, Kai-Hsi Lu, Soon-Keng Cheong, Alan Han-Kiat Ong, Shih-Hwa Chiou, Mong-Lien Wang
Journal of the Chinese Medical Association.2021; 84(3): 248. CrossRef
Cell Behavior of Non-Small Cell Lung Cancer Is at EGFR and MicroRNAs Hands
Sarah Sayed Hassanein, Sherif Abdelaziz Ibrahim, Ahmed Lotfy Abdel-Mawgood
International Journal of Molecular Sciences.2021; 22(22): 12496. CrossRef
The Roles of MicroRNA in Lung Cancer
Kuan-Li Wu, Ying-Ming Tsai, Chi-Tun Lien, Po-Lin Kuo, Jen-Yu Hung
International Journal of Molecular Sciences.2019; 20(7): 1611. CrossRef

The Use of the Bethesda System for Reporting Thyroid Cytopathology in Korea: A Nationwide Multicenter Survey by the Korean Society of Endocrine Pathologists: Mimi Kim, Hyo Jin Park, Hye Sook Min, Hyeong Ju Kwon, Chan Kwon Jung, Seoung Wan Chae, Hyun Ju Yoo, Yoo Duk Choi, Mi Ja Lee, Jeong Ja Kwak, Dong Eun Song, Dong Hoon Kim, Hye Kyung Lee, Ji Yeon Kim, Sook Hee Hong, Jang Sihn Sohn, Hyun Seung Lee, So Yeon Park, Soon Won Hong, Mi Kyung Shin; J Pathol Transl Med. 2017;51(4):410-417. Published online June 14, 2017; DOI: https://doi.org/10.4132/jptm.2017.04.05

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Abstract PDF

Background
The Bethesda System for Reporting Thyroid Cytopathology (TBSRTC) has standardized the reporting of thyroid cytology specimens. The objective of the current study was to evaluate the nationwide usage of TBSRTC and assess the malignancy rates in each category of TBSRTC in Korea.
Methods
Questionnaire surveys were used for data collection on the fine needle aspiration (FNA) of thyroid nodules at 74 institutes in 2012. The incidences and follow-up malignancy rates of each category diagnosed from January to December, 2011, in each institute were also collected and analyzed.
Results
Sixty out of 74 institutes answering the surveys reported the results of thyroid FNA in accordance with TBSRTC. The average malignancy rates for resected cases in 15 institutes were as follows: nondiagnostic, 45.6%; benign, 16.5%; atypical of undetermined significance, 68.8%; suspicious for follicular neoplasm (SFN), 30.2%; suspicious for malignancy, 97.5%; malignancy, 99.7%.
Conclusions
More than 80% of Korean institutes were using TBSRTC as of 2012. All malignancy rates other than the SFN and malignancy categories were higher than those reported by other countries. Therefore, the guidelines for treating patients with thyroid nodules in Korea should be revisited based on the malignancy rates reported in this study.

Citations

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Predictors of Malignancy in Thyroid Nodules Classified as Bethesda Category III
Xiaoli Liu, Jingjing Wang, Wei Du, Liyuan Dai, Qigen Fang
Frontiers in Endocrinology.2022;[Epub] CrossRef
Risk stratification of indeterminate thyroid nodules by novel multigene testing: a study of Asians with a high risk of malignancy
Chunfang Hu, Weiwei Jing, Qing Chang, Zhihui Zhang, Zhenrong Liu, Jian Cao, Linlin Zhao, Yue Sun, Cong Wang, Huan Zhao, Ting Xiao, Huiqin Guo
Molecular Oncology.2022; 16(8): 1680. CrossRef
CD56 Expression in Papillary Thyroid Carcinoma Is Highly Dependent on the Histologic Subtype: A Potential Diagnostic Pitfall
Uiju Cho, Yourha Kim, Sora Jeon, Chan Kwon Jung
Applied Immunohistochemistry & Molecular Morphology.2022; 30(5): 389. CrossRef
Malignancy rates in thyroid nodules: a long-term cohort study of 17,592 patients
M Grussendorf, I Ruschenburg, G Brabant
European Thyroid Journal.2022;[Epub] CrossRef
Subclassification of the Bethesda Category III (AUS/FLUS): A study of thyroid FNA cytology based on ThinPrep slides from the National Cancer Center in China
Huan Zhao, HuiQin Guo, LinLin Zhao, Jian Cao, Yue Sun, Cong Wang, ZhiHui Zhang
Cancer Cytopathology.2021; 129(8): 642. CrossRef
Effect of the Noninvasive Follicular Thyroid Neoplasm With Papillary-Like Nuclear Features (NIFTP) Nomenclature Revision on Indian Thyroid Fine-Needle Aspiration Practice
Chanchal Rana, Pooja Ramakant, Divya Goel, Akanksha Singh, KulRanjan Singh, Suresh Babu, Anand Mishra
American Journal of Clinical Pathology.2021; 156(2): 320. CrossRef
Comprehensive DNA Methylation Profiling Identifies Novel Diagnostic Biomarkers for Thyroid Cancer
Jong-Lyul Park, Sora Jeon, Eun-Hye Seo, Dong Hyuck Bae, Young Mun Jeong, Yourha Kim, Ja Seong Bae, Seon-Kyu Kim, Chan Kwon Jung, Yong Sung Kim
Thyroid.2020; 30(2): 192. CrossRef
Differences in surgical resection rate and risk of malignancy in thyroid cytopathology practice between Western and Asian countries: A systematic review and meta‐analysis
Huy Gia Vuong, Hanh Thi Tuyet Ngo, Andrey Bychkov, Chan Kwon Jung, Trang Huyen Vu, Kim Bach Lu, Kennichi Kakudo, Tetsuo Kondo
Cancer Cytopathology.2020; 128(4): 238. CrossRef
Thyroid cancer among patients with thyroid nodules in Yemen: a three-year retrospective study in a tertiary center and a specialty clinic
Butheinah A. Al-Sharafi, Jamila A. AlSanabani, Ibraheem M. Alboany, Amani M. Shamsher
Thyroid Research.2020;[Epub] CrossRef
Is Bethesda classification sufficient to predict thyroid cancer in endemic regions?
Gamze ÇITLAK, Bahar CANBAY TORUN
Journal of Surgery and Medicine.2020; 4(9): 794. CrossRef
Preoperative diagnostic categories of fine needle aspiration cytology for histologically proven thyroid follicular adenoma and carcinoma, and Hurthle cell adenoma and carcinoma: Analysis of cause of under- or misdiagnoses
Hee Young Na, Jae Hoon Moon, June Young Choi, Hyeong Won Yu, Woo-Jin Jeong, Yeo Koon Kim, Ji-Young Choe, So Yeon Park, Paula Soares
PLOS ONE.2020; 15(11): e0241597. CrossRef
Nuclear features of papillary thyroid carcinoma: Comparison of Core needle biopsy and thyroidectomy specimens
Jae Yeon Seok, Jungsuk An, Hyun Yee Cho, Younghye Kim, Seung Yeon Ha
Annals of Diagnostic Pathology.2018; 32: 35. CrossRef
Clinical utility of EZH1 mutations in the diagnosis of follicular-patterned thyroid tumors
Chan Kwon Jung, Yourha Kim, Sora Jeon, Kwanhoon Jo, Sohee Lee, Ja Seong Bae
Human Pathology.2018; 81: 9. CrossRef
The History of Korean Thyroid Pathology
Soon Won Hong, Chan Kwon Jung
International Journal of Thyroidology.2018; 11(1): 15. CrossRef
Thyroid FNA cytology in Asian practice—Active surveillance for indeterminate thyroid nodules reduces overtreatment of thyroid carcinomas
K. Kakudo, M. Higuchi, M. Hirokawa, S. Satoh, C. K. Jung, A. Bychkov
Cytopathology.2017; 28(6): 455. CrossRef
Thyroid Fine-Needle Aspiration Cytology Practice in Korea
Yoon Jin Cha, Ju Yeon Pyo, SoonWon Hong, Jae Yeon Seok, Kyung-Ju Kim, Jee-Young Han, Jeong Mo Bae, Hyeong Ju Kwon, Yeejeong Kim, Kyueng-Whan Min, Soonae Oak, Sunhee Chang
Journal of Pathology and Translational Medicine.2017; 51(6): 521. CrossRef
Current Practices of Thyroid Fine-Needle Aspiration in Asia: A Missing Voice
Andrey Bychkov, Kennichi Kakudo, SoonWon Hong
Journal of Pathology and Translational Medicine.2017; 51(6): 517. CrossRef
Current Status of Thyroid Fine-Needle Aspiration Practice in Thailand
Somboon Keelawat, Samreung Rangdaeng, Supinda Koonmee, Tikamporn Jitpasutham, Andrey Bychkov
Journal of Pathology and Translational Medicine.2017; 51(6): 565. CrossRef

Case Report

Esophageal Gland Duct Adenoma.: Yoonjung Kim, Yang Soon Park, Jei So Bang, Ji Yeon Kim, Young Hyeh Ko, Cheol Keun Park, Kyoung Mee Kim; Korean J Pathol. 2011;45:S45-S47.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.S1.S45

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Abstract PDF: Benign ductal or glandular neoplasms of the esophagus unrelated to Barrett esophagus are extremely rare. Only 9 cases have been reported in the English language literature. We now report a case of esophageal gland duct adenoma incidentally found in a 73-year-old man. A 0.8 cm-sized, polypoid submucosal lesion in the distal esophagus was removed. Histologically, the lesion was well circumscribed and consisted of several ducts or cysts with focal papillary configurations. Interstitial lymphocytic infiltration with germinal centers was also observed. The lining cells of ducts or cysts were composed of two layers: an inner intensely eosinophilic luminal duct cell layer and an outer myoepithelial cell layer that was accentuated by alpha-smooth muscle actin. There was no significant nuclear atypia or mitosis. Mucin production was occasionally observed in a few goblet cells. To the best of our knowledge, this is the first case of benign ductal or glandular neoplasm of the esophagus among Koreans.

Original Article

Comparative Study of Metaplastic Breast Carcinoma and Triple-Negative Breast Carcinoma Using Histologic and Immunohistochemical Analyses.: Ji Yeon Kim, Taeeun Kim, Eun Yoon Cho; Korean J Pathol. 2010;44(6):605-612.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.6.605

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Abstract PDF

BACKGROUND
Metaplastic carcinoma of the breast is a rare subtype of breast cancer, which is characterized by estrogen receptor/progesterone receptor and HER2 negativity.
METHODS
Tissue specimens from 60 metaplastic breast cancer and 60 triple-negative breast cancer patients diagnosed at a single institution between 1995 and 2009 were analyzed. Immunohistochemistry for caveolin-1 (CAV-1), vascular endothelial growth factor (VEGF), epidermal growth factor receptor (EGFR), c-kit, p53, Ki-67, breast cancer type 1 susceptibility protein (BRCA1), cytokeratin (CK)14, and CK17 were performed on both retained tissue sets.
RESULTS
Of the 60 metaplastic carcinomas, 15 tumors (25%) exhibited spindle cell component, 27 (45%) exhibited chondroid differentiation, and 18 (30%) exhibited squamous areas. Compared to triple-negative carcinomas, metaplastic carcinomas significantly more frequently expressed CK14 (p < 0.0001), CK17 (p = 0.002), EGFR (p < 0.0001), CAV-1 (p < 0.0001), and VEGF (p = 0.029). However, expressions of BRCA1, p53, c-kit, and Ki-67 were not significantly different between both groups.
CONCLUSIONS
The expression profile of metaplastic carcinoma of the breast is more homogeneous than that of other triple-negative tumors and frequently over-expresses basal markers, CAV-1, and VEGF. A typical "basal-like" phenotype and frequent expressions of CAV-1 and VEGF may justify specific therapeutic approaches.

Citations

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Metaplastic Carcinoma of the Breast with Squamous Differentiation: A Case Report from the University Teaching Hospital of Kigali (CHUK), Rwanda
Delphine Uwamariya, Carine Nyampinga, Anne Yvette Nsenguwera, Belson Rugwizangoga, Piero Tosi
Case Reports in Pathology.2020; 2020: 1. CrossRef

Short Case Report

Squamous Cell Carcinoma Arising in a Thymic Cyst : A Brief Case Report.: Chang Ohk Sung, Joungho Han, Ji Yeon Kim, Young Mog Shim, Tae Sung Kim; Korean J Pathol. 2009;43(3):260-262.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.3.260

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Abstract PDF

We present here the case of a 73-year-old man with squamous cell carcinoma that arose in a thymic cyst, and this was incidentally found by chest radiography. Computed tomography revealed a 3.6 cm-sized predominantly cystic lesion with a mural nodule at the antero-superior mediastinum. The resected specimen was a well demarcated cystic mass with a solid mural nodule. Microscopically, the nodule was determined to be invasive squamous cell carcinoma that had originated from the benign squamous epithelium lining the thymic cyst.

Citations

Citations to this article as recorded by

Multilocular Thymic Cyst with Prominent Lymphoid Follicular Hyperplasia: A Case Report
Na-Ra Yoon, Ji Yun Jeong, Joungho Han, Jhingook Kim, Chin A Yi
Journal of Lung Cancer.2012; 11(1): 45. CrossRef

Case Report

Recurred Angiomyofibroblastoma of the Vulva: Report of a case.: Do Youn Park, Ji Yeon Kim, OK Hyeon Kim, Hwa Sun Lee, Mee Young Sol, Kang Suek Suh, Sun Kyung Lee; Korean J Pathol. 1996;30(10):947-950.

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Abstract PDF: Angiomyofibroblastoma is a rare, benign mesenchymal tumor of the vulva. Since it was described in 1992 by Fletcher, 15 cases have been reported in literature. We recently experienced a recurred angiomyofibroblastoma of the vulva. A 45-year-old woman was presented initially in 1991 with a mass of labium major and local excision of tumor mass had been performed. A histologic diagnosis was made of angiomyxoma, but this diagnosis was revised to angiomyofibroblastoma by the authors. The recurred mass was well circumscribed, measuring 2.5x1.6x1.5cm in dimensions. Microscopically the tumor was characterized by high cellularity, numerous blood vessels(which lack prominent hyalinization), and plump stromal cells. Immunohistochemically, the stromal cells were reactive for vimentin and desmin, but not alpha-smooth muscle actin, or S-100 protein. We thought that this case was a recurred angiomyofibrblastoma of the vulva due to incomplete surgical excision.

Original Article

Expression of Tumor Necrosis Factor-alpha, Interleukin-1beta and Inducible Nitric Oxide Synthase after Stereotaxic Injection of Lipopolysaccharide in Rat Hippocampus.: Hoon Kyu Oh, Ku Seong Kang, Ji Yeon Kim, Eun Kyoung Kwak, Jung Wan Kim, Ji Young Park, Yoon Kyung Sohn; Korean J Pathol. 2004;38(3):157-164.

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Abstract PDF: BACKGROUND
Brain inducible nitric oxide synthase (iNOS) might be detectable in several pathologic conditions, and it is thought to play an important role in their pathophysiology. Tumor necrosis factor (TNF)-alpha and interleukin (IL)-1beta are believed to be essential factors of iNOS induction of the brain.
METHODS
After intrahippocampal stereotaxic injection of lipopoly-saccharide (LPS), the rat brains were removed at 6, 12 and 24 h. The rat brain tissues were examined to clarify the expression patterns of TNF-alpha, IL-1beta and iNOS.
RESULTS
The inflammatory cells which were stained with anti-TNF-alpha antibody, appeared in 6 h and increased for 24 h after LPS injection. The iNOS positive cells appeared after 12 h of LPS injection. A semiquantitative analysis of reverse transcription-polymerase chain reaction (RT-PCR) revealed that the TNF-alpha and IL-1beta mRNA arose at 1 h, peaked at 6 h and then declined until 48 h after LPS injection. The iNOS mRNA arose after 6 h, peaked at 12 h, and declined until 48 h after LPS injection.
CONCLUSIONS
We conclude that the induction of inflammatory events by intrahippocampal injection of LPS activates TNF-alpha and IL-1beta secretion, and this is followed by an induction of iNOS expression. TNF-alpha and IL-1beta seem to be related with iNOS expression in brain inflammation.

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