Journal of Pathology and Translational Medicine

Hyoun Wook Lee

3 Articles

Prognostic Utility of Histological Growth Patterns of Colorectal Lung Oligometastasis: Son Jae Yeong, Min Gyoung Pak, Hyoun Wook Lee, Seung Yeon Ha, Mee Sook Roh; J Pathol Transl Med. 2018;52(2):98-104. Published online February 12, 2018; DOI: https://doi.org/10.4132/jptm.2017.12.27

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Background
Patients with resectable colorectal lung oligometastasis (CLOM) demonstrate a heterogeneous oncological outcome. However, the parameters for predicting tumor aggressiveness have not yet been fully investigated in CLOM. This study was performed to determine the prognostic value of histological growth patterns in patients who underwent surgery for CLOM.
Methods
The study included 92 patients who were diagnosed with CLOM among the first resection cases. CLOMs grow according to three histological patterns: aerogenous, pushing, and desmoplastic patterns. The growth patterns were evaluated on archival hematoxylin and eosin–stained tissue sections.
Results
The aerogenous pattern was found in 29.4% (n=27) of patients, the pushing pattern in 34.7% (n=32), the desmoplastic pattern in 6.5% (n=6), and a mix of two growth patterns in 29.4% (n=27). The size of the aerogenous pattern was significantly smaller than that of metastases with other patterns (p=.033). Kaplan-Meier analysis demonstrated that patients showing an aerogenous pattern appeared to have a poorer prognosis, which was calculated from the time of diagnosis of the CLOM (p=.044). The 5-year survival rate from the diagnosis of colorectal cancer tended to be lower in patients with an aerogenous pattern than in those who had a non-aerogenous pattern; however, the difference was marginally significant (p=.051). In the multivariate Cox analysis, the aerogenous pattern appeared as an independent predictor of poor overall survival (hazard ratio, 3.122; 95% confidence interval, 1.196 to 8.145; p=.020).
Conclusions
These results suggest that the growth patterns may play a part as a histology-based prognostic parameter for patients with CLOM.

Citations

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Predicting liver metastases growth patterns: Current status and future possibilities
Rui Caetano Oliveira, Henrique Alexandrino, Maria Augusta Cipriano, Filipe Caseiro Alves, José Guilherme Tralhão
Seminars in Cancer Biology.2021; 71: 42. CrossRef
Histological growth patterns and molecular analysis of resected colorectal lung metastases
Emanuela Pilozzi, Damiano Fedele, Andrea Montori, Laura Lorenzon, Valentina Peritore, Giorgia Mannocchi, Nikta Bagheri, Chiara Leone, Antonio Palumbo, Michela Roberto, Giulio Ranazzi, Erino Rendina, Genoveffa Balducci, Mohsen Ibrahim
Pathology - Research and Practice.2021; 222: 153414. CrossRef

Altered Expression of PTEN and Its Major Regulator MicroRNA-21 in Pulmonary Neuroendocrine Tumors: Hyoun Wook Lee, Seung Yeon Ha, Mee Sook Roh; Korean J Pathol. 2014;48(1):17-23. Published online February 25, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.1.17

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Abstract PDF

Background

Phosphatase and tensin homolog on chromosome ten (PTEN) is one of the most frequently inactivated tumor suppressors in various tumor types. MicroRNA-21 (miR-21) may affect tumor progression by post-transcriptional repression of expression of tumor suppressors, such as PTEN. This study was conducted to evaluate the significance of PTEN expression in pulmonary neuroendocrine (NE) tumors and to analyze the relationship between PTEN and miR-21 expressions.

Methods

Expressions of PTEN and miR-21 were investigated by immunohistochemistry and real time reverse transcription-polymerase chain reaction, respectively, in 75 resected pulmonary NE tumors (23 typical carcinoids [TCs], nine atypical carcinoids [ACs], 22 large cell NE carcinomas [LCNECs], and 21 small cell lung carcinomas [SCLCs]).

Results

Loss of PTEN expression was observed in four of 23 TCs (17.4%), four of nine ACs (44.4%), 16 of 22 LCNECs (72.7%) and nine of 21 SCLCs (42.9%) (p=.025). The expression level of miR-21 was significantly higher in high-grade NE carcinomas than in carcinoid tumors (p<.001). PTEN expression was inversely correlated with miR-21 expression (p<.001).

Conclusions

This study suggests that aberrant expression of PTEN in relation to miR-21 may represent an important step in the development and progression of pulmonary NE tumors.

Citations

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Role of microRNAs in regulating cell proliferation, metastasis and chemoresistance and their applications as cancer biomarkers in small cell lung cancer
Monu Pandey, Abhirup Mukhopadhyay, Surender K. Sharawat, Sachin Kumar
Biochimica et Biophysica Acta (BBA) - Reviews on Cancer.2021; 1876(1): 188552. CrossRef
Neuroendocrine Tumors Are Enriched in Cowden Syndrome
Alison Greidinger, Susan Miller-Samuel, Veda N. Giri, Michele Sue-Ann Woo, Saranya Akumalla, Charnita Zeigler-Johnson, Scott W. Keith, Daniel P. Silver
JCO Precision Oncology.2020; (4): 551. CrossRef
Prognostic and predictive role of the PI3K–AKT–mTOR pathway in neuroendocrine neoplasms
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Clinical and Translational Oncology.2018; 20(5): 561. CrossRef
Genetic and epigenetic drivers of neuroendocrine tumours (NET)
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Endocrine-Related Cancer.2017; 24(9): R315. CrossRef
Expression of hsa-let-7b-5p, hsa-let-7f-5p, and hsa-miR-222-3p and their putative targets HMGA2 and CDKN1B in typical and atypical carcinoid tumors of the lung
Pietro Di Fazio, Moritz Maass, Silvia Roth, Christian Meyer, Joana Grups, Peter Rexin, Detlef K Bartsch, Andreas Kirschbaum
Tumor Biology.2017; 39(10): 101042831772841. CrossRef
The regulatory role of aberrant Phosphatase and Tensin Homologue and Liver Kinase B1 on AKT/mTOR/c-Myc axis in pancreatic neuroendocrine tumors
Tsung-Ming Chang, Yan-Shen Shan, Pei-Yi Chu, Shih Sheng Jiang, Wen-Chun Hung, Yu-Lin Chen, Hsiu-Chi Tu, Hui-You Lin, Hui-Jen Tsai, Li-Tzong Chen
Oncotarget.2017; 8(58): 98068. CrossRef
Pulmonary atypical carcinoid in a patient with Cowden syndrome
Hiroaki Tsunezuka, Kaori Abe, Junichi Shimada, Masayoshi Inoue
Interactive CardioVascular and Thoracic Surgery.2016; 22(6): 860. CrossRef
Differential miRNA-Expression as an Adjunctive Diagnostic Tool in Neuroendocrine Tumors of the Lung
Melanie Demes, Christoph Aszyk, Holger Bartsch, Joachim Schirren, Annette Fisseler-Eckhoff
Cancers.2016; 8(4): 38. CrossRef
microRNA-21 promotes osteogenic differentiation of mesenchymal stem cells by the PI3K/β-catenin pathway
Yu-Bin Meng, Xue Li, Zhao-Yang Li, Jin Zhao, Xu-Bo Yuan, Yu Ren, Zhen-Duo Cui, Yun-De Liu, Xian-Jin Yang
Journal of Orthopaedic Research.2015; 33(7): 957. CrossRef
Inhibition of NADPH oxidase protects against metastasis of human lung cancer by decreasing microRNA-21
Song Yan, Gang Liu, Changyan Pei, Wenqing Chen, Pei Li, Qiang Wang, Xintian Jin, Jiajia Zhu, Mengzhu Wang, Xiyu Liu
Anti-Cancer Drugs.2015; 26(4): 388. CrossRef

Frequency of BRAF Mutation and Clinical Relevance for Primary Melanomas: Hyoun Wook Lee, Ki Hoon Song, Jin Woo Hong, Su Young Jeon, Dong Yeob Ko, Ki Ho Kim, Hyuk Chan Kwon, Suee Lee, Sung Hyun Kim, Dae Cheol Kim; Korean J Pathol. 2012;46(3):246-252. Published online June 22, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.3.246

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Abstract PDF

Background

This study was conducted to clarify the frequency of the BRAF mutation in primary melanomas and its correlation with clinicopathologic parameters.

Methods

We analyzed the frequency of BRAF mutation in patients with primary cutaneous melanoma (n=58) or non-cutaneous one (n=27) by performing dual priming oligonucleotide-based multiplex real-time polymerase chain reaction to isolate and to purify the DNA from the formalin-fixed and paraffin-embedded tumors.

Results

The BRAF mutation was found in 17.2% (10/58) of patients with primary cutaneous melanoma and 11.1% (3/27) of those with non-cutaneous melanoma. The frequency of BRAF mutation was not correlated with any clinicopathologic parameters with the exception of the patient age. The frequency of the BRAF mutation was significantly higher in patients younger than 60 years as compared with those older than 60 years (p=0.005).

Conclusions

Compared with previous reports, our results showed that the frequency of the BRAF mutation was relatively lower in patients with primary cutaneous melanoma. Besides, our results also showed that the frequency of the BRAF mutation had an inverse correlation with the age. Further studies are warranted to exclude methodological bias, to elucidate the difference in the frequency of the BRAF mutation from the previous reports from a Caucasian population and to provide an improved understanding of the molecular pathogenesis of malignant melanoma.

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