Journal of Pathology and Translational Medicine

Kyoung-Mee Kim

11 Articles

Interpretation of PD-L1 expression in gastric cancer: summary of a consensus meeting of Korean gastrointestinal pathologists: Soomin Ahn, Yoonjin Kwak, Gui Young Kwon, Kyoung-Mee Kim, Moonsik Kim, Hyunki Kim, Young Soo Park, Hyeon Jeong Oh, Kyoungyul Lee, Sung Hak Lee, Hye Seung Lee; J Pathol Transl Med. 2024;58(3):103-116. Published online April 25, 2024; DOI: https://doi.org/10.4132/jptm.2024.03.15

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Nivolumab plus chemotherapy in the first-line setting has demonstrated clinical efficacy in patients with human epidermal growth factor receptor 2–negative advanced or metastatic gastric cancer, and is currently indicated as a standard treatment. Programmed death-ligand 1 (PD-L1) expression is an important biomarker for predicting response to anti–programmed death 1/PD-L1 agents in several solid tumors, including gastric cancer. In the CheckMate-649 trial, significant clinical improvements were observed in patients with PD-L1 combined positive score (CPS) ≥ 5, determined using the 28-8 pharmDx assay. Accordingly, an accurate interpretation of PD-L1 CPS, especially at a cutoff of 5, is important. The CPS method evaluates both immune and tumor cells and provides a comprehensive assessment of PD-L1 expression in the tumor microenvironment of gastric cancer. However, CPS evaluation has several limitations, one of which is poor interobserver concordance among pathologists. Despite these limitations, clinical indications relying on PD-L1 CPS are increasing. In response, Korean gastrointestinal pathologists held a consensus meeting for the interpretation of PD-L1 CPS in gastric cancer. Eleven pathologists reviewed 20 PD-L1 slides with a CPS cutoff close to 5, stained with the 28-8 pharmDx assay, and determined the consensus scores. The issues observed in discrepant cases were discussed. In this review, we present cases of gastric cancer with consensus PD-L1 CPS. In addition, we briefly touch upon current practices and clinical issues associated with assays used for the assessment of PD-L1 expression in gastric cancer.

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Adjuvant immunotherapy in patients with resected gastric and oesophagogastric junction cancer following preoperative chemotherapy with high risk for recurrence (ypN+ and/or R1): European Organisation of Research and Treatment of Cancer (EORTC) 1707 VESTIG
F. Lordick, M.E. Mauer, G. Stocker, C.A. Cella, I. Ben-Aharon, G. Piessen, L. Wyrwicz, G. Al-Haidari, T. Fleitas-Kanonnikoff, V. Boige, R. Lordick Obermannová, U.M. Martens, C. Gomez-Martin, P. Thuss-Patience, V. Arrazubi, A. Avallone, K.K. Shiu, P. Artru
Annals of Oncology.2025; 36(2): 197. CrossRef
PD-L1 as a Biomarker in Gastric Cancer Immunotherapy
Yunjoo Cho, Soomin Ahn, Kyoung-Mee Kim
Journal of Gastric Cancer.2025; 25(1): 177. CrossRef
PD-L1 importance in malignancies comprehensive insights into the role of PD-L1 in malignancies: from molecular mechanisms to therapeutic opportunities
Mojdeh Soltani, Mohammad Abbaszadeh, Hamed Fouladseresht, Mark J. M. Sullman, Nahid Eskandari
Clinical and Experimental Medicine.2025;[Epub] CrossRef
PD-L1 thresholds predict efficacy of immune checkpoint inhibition in first-line treatment of advanced gastroesophageal adenocarcinoma. A systematic review and meta-analysis of seven phase III randomized trials
V. Formica, C. Morelli, L. Fornaro, S. Riondino, M. Rofei, E. Fontana, E.C. Smyth, M. Roselli, H.-T. Arkenau
ESMO Open.2024; 9(11): 103967. CrossRef

Clinicopathologic significance of the delta-like ligand 4, vascular endothelial growth factor, and hypoxia-inducible factor-2α in gallbladder cancer: Sujin Park, Junsik Kim, Woncheol Jang, Kyoung-Mee Kim, Kee-Taek Jang; J Pathol Transl Med. 2023;57(2):113-122. Published online March 14, 2023; DOI: https://doi.org/10.4132/jptm.2023.02.01

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Abstract PDF

Background
Gallbladder cancer (GBC) is usually detected in advanced stages with a low 5-year survival rate. Delta-like ligand 4 (DLL4), vascular endothelial growth factor (VEGF), and hypoxia-inducible factor-2alpha (HIF2α) have been studied for their role in tumorigenesis and potential for therapeutic target, and multiple clinical trials of the agents targeting them are ongoing. We investigated the expression of these markers in surgically resected GBC and tried to reveal their association with the clinicopathologic features, mutual correlation of their expression, and prognosis of the GBC patients by their expression.
Methods
We constructed the tissue microarray blocks of 99 surgically resected GBC specimens and performed immunohistochemistry of DLL4, VEGF, and HIF2α. We used the quantitative digital image analysis to evaluate DLL4 and VEGF expression, while the expression of HIF2α was scored manually.
Results
The expression of VEGF and HIF2α showed a significant trend with tumor differentiation (p= .028 and p= .006, respectively). We found that the high DLL4 and VEGF expression were significantly correlated with lymph node metastasis (p= .047, both). The expression of VEGF and HIF2α were significantly correlated (p < .001). The GBC patients with low HIF2α expression showed shorter recurrence-free survival than those with high HIF2α expression.
Conclusions
This study suggested the possibility of the usage of DLL4 and VEGF to predict the lymph node metastasis and the possibility of VEGF and HIF2α to predict the expression level mutually. Further studies may be needed to validate our study results and eventually accelerate the introduction of the targeted therapy in GBC.

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Dedifferentiated Leiomyosarcoma of the Uterine Corpus with Heterologous Component: Clinicopathological Analysis of Five Consecutive Cases from a Single Institution and Comprehensive Literature Review
Suyeon Kim, Hyunsik Bae, Hyun-Soo Kim
Diagnostics.2024; 14(2): 160. CrossRef
Identification of Key Immune Infiltration Related Genes Involved in Aortic Dissection Using Bioinformatic Analyses and Experimental Verification
Lin Zheng, Yusi Yang, Jie Liu, Tianliang Zhao, Xin Zhang, Lihua Chen
Journal of Inflammation Research.2024; Volume 17: 2119. CrossRef

A standardized pathology report for gastric cancer: 2nd edition: Young Soo Park, Myeong-Cherl Kook, Baek-hui Kim, Hye Seung Lee, Dong-Wook Kang, Mi-Jin Gu, Ok Ran Shin, Younghee Choi, Wonae Lee, Hyunki Kim, In Hye Song, Kyoung-Mee Kim, Hee Sung Kim, Guhyun Kang, Do Youn Park, So-Young Jin, Joon Mee Kim, Yoon Jung Choi, Hee Kyung Chang, Soomin Ahn, Mee Soo Chang, Song-Hee Han, Yoonjin Kwak, An Na Seo, Sung Hak Lee, Mee-Yon Cho; J Pathol Transl Med. 2023;57(1):1-27. Published online January 15, 2023; DOI: https://doi.org/10.4132/jptm.2022.12.23

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Abstract PDF Supplementary Material

The first edition of ‘A Standardized Pathology Report for Gastric Cancer’ was initiated by the Gastrointestinal Pathology Study Group of the Korean Society of Pathologists and published 17 years ago. Since then, significant advances have been made in the pathologic diagnosis, molecular genetics, and management of gastric cancer (GC). To reflect those changes, a committee for publishing a second edition of the report was formed within the Gastrointestinal Pathology Study Group of the Korean Society of Pathologists. This second edition consists of two parts: standard data elements and conditional data elements. The standard data elements contain the basic pathologic findings and items necessary to predict the prognosis of GC patients, and they are adequate for routine surgical pathology service. Other diagnostic and prognostic factors relevant to adjuvant therapy, including molecular biomarkers, are classified as conditional data elements to allow each pathologist to selectively choose items appropriate to the environment in their institution. We trust that the standardized pathology report will be helpful for GC diagnosis and facilitate large-scale multidisciplinary collaborative studies.

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Spatial and Temporal Tumor Heterogeneity in Gastric Cancer: Discordance of Predictive Biomarkers
Hye Seung Lee
Journal of Gastric Cancer.2025; 25(1): 192. CrossRef
PD-L1 as a Biomarker in Gastric Cancer Immunotherapy
Yunjoo Cho, Soomin Ahn, Kyoung-Mee Kim
Journal of Gastric Cancer.2025; 25(1): 177. CrossRef
Korean Gastric Cancer Association-Led Nationwide Survey on Surgically Treated Gastric Cancers in 2023
Dong Jin Kim, Jeong Ho Song, Ji-Hyeon Park, Sojung Kim, Sin Hye Park, Cheol Min Shin, Yoonjin Kwak, Kyunghye Bang, Chung-sik Gong, Sung Eun Oh, Yoo Min Kim, Young Suk Park, Jeesun Kim, Ji Eun Jung, Mi Ran Jung, Bang Wool Eom, Ki Bum Park, Jae Hun Chung, S
Journal of Gastric Cancer.2025; 25(1): 115. CrossRef
A Comprehensive and Comparative Review of Global Gastric Cancer Treatment Guidelines: 2024 Update
Sang Soo Eom, Keun Won Ryu, Hye Sook Han, Seong-Ho Kong
Journal of Gastric Cancer.2025; 25(1): 153. CrossRef
Korea, Japan, Europe, and the United States: Why are guidelines for gastric cancer different?
Emily E. Stroobant, Seong-Ho Kong, Maria Bencivenga, Takahiro Kinoshita, Tae-Han Kim, Takeshi Sano, Giovanni de Manzoni, Han-Kwang Yang, Yuko Kitagawa, Vivian E. Strong
Gastric Cancer.2025;[Epub] CrossRef
Genomic and Transcriptomic Characterization of Gastric Cancer with Bone Metastasis
Sujin Oh, Soo Kyung Nam, Keun-Wook Lee, Hye Seung Lee, Yujun Park, Yoonjin Kwak, Kyu Sang Lee, Ji-Won Kim, Jin Won Kim, Minsu Kang, Young Suk Park, Sang-Hoon Ahn, Yun-Suhk Suh, Do Joong Park, Hyung Ho Kim
Cancer Research and Treatment.2024; 56(1): 219. CrossRef
Microscopic tumor mapping of post-neoadjuvant therapy pancreatic cancer specimens to predict post-surgical recurrence: A prospective cohort study
Yeshong Park, Yeon Bi Han, Jinju Kim, MeeYoung Kang, Boram Lee, Eun Sung Ahn, Saemi Han, Haeryoung Kim, Hee-Young Na, Ho-Seong Han, Yoo-Seok Yoon
Pancreatology.2024; 24(4): 562. CrossRef
Effect of Neoadjuvant Chemotherapy on Tumor-Infiltrating Lymphocytes in Resectable Gastric Cancer: Analysis from a Western Academic Center
Elliott J. Yee, Danielle Gilbert, Jeffrey Kaplan, Sachin Wani, Sunnie S. Kim, Martin D. McCarter, Camille L. Stewart
Cancers.2024; 16(7): 1428. CrossRef
Interpretation of PD-L1 expression in gastric cancer: summary of a consensus meeting of Korean gastrointestinal pathologists
Soomin Ahn, Yoonjin Kwak, Gui Young Kwon, Kyoung-Mee Kim, Moonsik Kim, Hyunki Kim, Young Soo Park, Hyeon Jeong Oh, Kyoungyul Lee, Sung Hak Lee, Hye Seung Lee
Journal of Pathology and Translational Medicine.2024; 58(3): 103. CrossRef
Expression of claudin 18.2 in poorly cohesive carcinoma and its association with clinicopathologic parameters in East Asian patients
Moonsik Kim, Byung Woog Kang, Jihyun Park, Jin Ho Baek, Jong Gwang Kim
Pathology - Research and Practice.2024; 263: 155628. CrossRef
Clinicopathological analysis of claudin 18.2 focusing on intratumoral heterogeneity and survival in patients with metastatic or unresectable gastric cancer
T.-Y. Kim, Y. Kwak, S.K. Nam, D. Han, D.-Y. Oh, S.-A. Im, H.S. Lee
ESMO Open.2024; 9(12): 104000. CrossRef
Pathological Interpretation of Gastric Tumors in Endoscopic Submucosal Dissection
Jung Yeon Kim
Journal of Digestive Cancer Research.2023; 11(1): 15. CrossRef
Histopathology of Gastric Cancer
Baek-hui Kim, Sung Hak Lee
The Korean Journal of Helicobacter and Upper Gastrointestinal Research.2023; 23(2): 143. CrossRef
Endoscopic submucosal dissection hands-on training with artificial mucosal layer EndoGEL
Tae-Se Kim, Jun Haeng Lee
Journal of Innovative Medical Technology.2023; 1(1): 5. CrossRef

DNA-protein biomarkers for immunotherapy in the era of precision oncology: Binnari Kim, So Young Kang, Kyoung-Mee Kim; J Pathol Transl Med. 2021;55(1):26-32. Published online November 9, 2020; DOI: https://doi.org/10.4132/jptm.2020.09.23

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Abstract PDF

The use of biomarkers to guide patient and therapy selection has gained much attention to increase the scope and complexity of targeted therapy options and immunotherapy. Clinical trials provide a basis for discovery of biomarkers, which can then aid in development of new drugs. To that end, samples from cancer patients, including DNA, RNA, protein, and the metabolome isolated from cancer tissues and blood or urine, are analyzed in various ways to identify relevant biomarkers. In conjunction with nucleotide-based, high-throughput, next-generation sequencing techniques, therapy-guided biomarker assays relying on protein-based immunohistochemistry play a pivotal role in cancer care. In this review, we discuss the current knowledge regarding DNA and protein biomarkers for cancer immunotherapy

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Treatment Selection for Patients with HER2-Negative Metastatic Gastric Cancer Expressing Claudin 18.2 and PD-L1
Yusuke Miyajima, Takeshi Kawakami
Cancers.2025; 17(7): 1120. CrossRef
NCKAP1 as a prognostic and immunological biomarker: pan-cancer analysis and validation in renal clear cell carcinoma
Xiao Liang
American Journal of Translational Research.2024; 16(8): 4083. CrossRef
Biomarkers for Predicting Response to Personalized Immunotherapy in Gastric Cancer
Moonsik Kim, Ji Yun Jeong, An Na Seo
Diagnostics.2023; 13(17): 2782. CrossRef

Molecular Testing for Gastrointestinal Cancer: Hye Seung Lee, Woo Ho Kim, Yoonjin Kwak, Jiwon Koh, Jeong Mo Bae, Kyoung-Mee Kim, Mee Soo Chang, Hye Seung Han, Joon Mee Kim, Hwal Woong Kim, Hee Kyung Chang, Young Hee Choi, Ji Y. Park, Mi Jin Gu, Min Jin Lhee, Jung Yeon Kim, Hee Sung Kim, Mee-Yon Cho; J Pathol Transl Med. 2017;51(2):103-121. Published online February 19, 2017; DOI: https://doi.org/10.4132/jptm.2017.01.24

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Abstract PDF

With recent advances in molecular diagnostic methods and targeted cancer therapies, several molecular tests have been recommended for gastric cancer (GC) and colorectal cancer (CRC). Microsatellite instability analysis of gastrointestinal cancers is performed to screen for Lynch syndrome, predict favorable prognosis, and screen patients for immunotherapy. The epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor has been approved in metastatic CRCs with wildtype RAS (KRAS and NRAS exon 2–4). A BRAF mutation is required for predicting poor prognosis. Additionally, amplification of human epidermal growth factor receptor 2 (HER2) and MET is also associated with resistance to EGFR inhibitor in metastatic CRC patients. The BRAF V600E mutation is found in sporadic microsatellite unstable CRCs, and thus is helpful for ruling out Lynch syndrome. In addition, the KRAS mutation is a prognostic biomarker and the PIK3CA mutation is a molecular biomarker predicting response to phosphoinositide 3-kinase/AKT/mammalian target of rapamycin inhibitors and response to aspirin therapy in CRC patients. Additionally, HER2 testing should be performed in all recurrent or metastatic GCs. If the results of HER2 immunohistochemistry are equivocal, HER2 silver or fluorescence in situ hybridization testing are essential for confirmative determination of HER2 status. Epstein-Barr virus–positive GCs have distinct characteristics, including heavy lymphoid stroma, hypermethylation phenotype, and high expression of immune modulators. Recent advances in next-generation sequencing technologies enable us to examine various genetic alterations using a single test. Pathologists play a crucial role in ensuring reliable molecular testing and they should also take an integral role between molecular laboratories and clinicians.

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Spatial and Temporal Tumor Heterogeneity in Gastric Cancer: Discordance of Predictive Biomarkers
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A Standardized Pathology Report for Gastric Cancer: 2nd Edition
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A standardized pathology report for gastric cancer: 2nd edition
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Influence of location-dependent sex difference on PD-L1, MMR/MSI, and EGFR in colorectal carcinogenesis
Jina Choi, Nayoung Kim, Ryoung Hee Nam, Jin Won Kim, Chin-Hee Song, Hee Young Na, Gyeong Hoon Kang, Alvaro Galli
PLOS ONE.2023; 18(2): e0282017. CrossRef
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Retracted: Connexin 43 upregulation by dioscin‐inhibited gastric cancer metastasis by suppressing PI3K/Akt pathway

Food Science & Nutrition.2022;[Epub] CrossRef
Molecular Pathology of Gastric Cancer
Moonsik Kim, An Na Seo
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Case report: Undifferentiated sarcoma with multiple tumors involved in Lynch syndrome: Unexpected favorable outcome to sintilimab combined with chemotherapy
Jiaying Liu, Xiaona Chang, Guixiang Xiao, Jingmin Zhong, Bo Huang, Jiwei Zhang, Beibei Gao, Gang Peng, Xiu Nie
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Yi Pan, Qingshang Li, Zhijun Cao, Shuliang Zhao
Genes & Diseases.2021; 8(6): 827. CrossRef
Worldwide variation in lynch syndrome screening: case for universal screening in low colorectal cancer prevalence areas
George Kunnackal John, Vipin Das Villgran, Christine Caufield-Noll, Francis Giardiello
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ISH-based HER2 diagnostics
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Der Pathologe.2021; 42(S1): 62. CrossRef
Identification and Analysis of Key Genes Driving Gastric Cancer Through Bioinformatics
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Francis Yew Fu Tieng, Nadiah Abu, Learn-Han Lee, Nurul-Syakima Ab Mutalib
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Comparative analysis of HER2 copy number between plasma and tissue samples in gastric cancer using droplet digital PCR
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Differential prognostic impact of CD8+ T cells based on human leucocyte antigen I and PD-L1 expression in microsatellite-unstable gastric cancer
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PD-L1 Testing in Gastric Cancer by the Combined Positive Score of the 22C3 PharmDx and SP263 Assay with Clinically Relevant Cut-offs
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Clinical and Molecular Assessment of Patients with Lynch Syndrome and Sarcomas Underpinning the Association with MSH2 Germline Pathogenic Variants
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YAP promotes self-renewal of gastric cancer cells by inhibiting expression of L-PTGDS and PTGDR2
Qingli Bie, Xiaozhe Li, Shiqi Liu, Xiao Yang, Zhenwen Qian, Rou Zhao, Xiaobei Zhang, Bin Zhang
International Journal of Clinical Oncology.2020; 25(12): 2055. CrossRef
ISH-basierte HER2-Diagnostik
Josef Rüschoff, Iris Nagelmeier, Bharat Jasani, Oliver Stoss
Der Pathologe.2020; 41(6): 606. CrossRef
Histone Deacetylase Inhibitor Trichostatin A Suppresses Cell Proliferation and Induces Apoptosis by Regulating the PI3K/AKT Signalling Pathway in Gastric Cancer Cells
Xinli An, Zekun Wei, Botian Ran, Hao Tian, Hongyu Gu, Yan Liu, Hongjuan Cui, Shunqin Zhu
Anti-Cancer Agents in Medicinal Chemistry.2020; 20(17): 2114. CrossRef
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Human epidermal growth factor receptor 2-positive digestive tumors
Anna D. Wagner, Berna C. Özdemir, Josef Rüschoff
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Assessing molecular subtypes of gastric cancer: microsatellite unstable and Epstein-Barr virus subtypes. Methods for detection and clinical and pathological implications
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Rachel Sin-Yu Choi, Wing Yin Xenia Lai, Lok Ting Claire Lee, Wing Lam Christa Wong, Xiao Meng Pei, Hin Fung Tsang, Joel Johnson Leung, William Chi Shing Cho, Man Kee Maggie Chu, Elaine Yue Ling Wong, Sze Chuen Cesar Wong
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Clinicopathologic significance of human leukocyte antigen class I expression in patients with stage II and III gastric cancer
Yujun Park, Jiwon Koh, Yoonjin Kwak, Sang-Hoon Ahn, Do Joong Park, Hyung-Ho Kim, Woo Ho Kim, Hye Seung Lee
Cancer Immunology, Immunotherapy.2019; 68(11): 1779. CrossRef
Development and Validation of an Easy-to-Implement, Practical Algorithm for the Identification of Molecular Subtypes of Gastric Cancer: Prognostic and Therapeutic Implications
Jiwon Koh, Keun-Wook Lee, Soo Kyung Nam, An Na Seo, Ji-Won Kim, Jin Won Kim, Do Joong Park, Hyung-Ho Kim, Woo Ho Kim, Hye Seung Lee
The Oncologist.2019; 24(12): e1321. CrossRef
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Federica Franchino, Roberta Rudà, Riccardo Soffietti
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Hyung Kyu Park, Mingi Kim, Minjung Sung, Seung Eun Lee, Yu Jin Kim, Yoon-La Choi
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Design and synthesis of near-infrared fluorescence-enhancement probes for the cancer-specific enzyme hNQO1
Changyu Zhang, Bei-Bei Zhai, Tao Peng, Zelin Zhong, Lianbin Xu, Qiang-Zhe Zhang, Lu-Yuan Li, Long Yi, Zhen Xi
Dyes and Pigments.2017; 143: 245. CrossRef
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Zheyu Song, Yuanyu Wu, Jiebing Yang, Dingquan Yang, Xuedong Fang
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NR4A1-induced increase in the sensitivity of a human gastric cancer line to TNFα-mediated apoptosis is associated with the inhibition of JNK/Parkin-dependent mitophagy
Hongzhu Yan, Feng Xiao, Jue Zou, Chengmin Qiu, Weiwei Sun, Minmin Gu, Li Zhang
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PHH3 as an Ancillary Mitotic Marker in Gastrointestinal Stromal Tumors: Yooju Shin, Jiyeon Hyeon, Boram Lee, Sang Yun Ha, Min Eui Hong, In Gu Do, Kyoung-Mee Kim; J Pathol Transl Med. 2015;49(1):23-29. Published online January 15, 2015; DOI: https://doi.org/10.4132/jptm.2014.10.08

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Abstract PDF

Background
Counting mitoses is subjective and time-consuming. The adjunctive diagnostic utility of a recently reported mitotic marker, phosphohistone H3 (PHH3), was investigated in gastrointestinal stromal tumors (GISTs). Methods: We reviewed 77 GISTs for several proliferative indices. These included the mitotic count per 50 high power fields (HPFs), the immunohistochemical Ki- 67 labeling index and the immunohistochemical PHH3 mitotic index (MI). For comparison, Spearman’s rank correlation and interclass correlation coefficient were used. Results: Mitotic counts ranged from 0–138 (mean, 7.57±2.34) and the PHH3 MI ranged from 0–126 per 50 HPFs (mean, 9.61±2.27). We found a positive correlation between mitotic counts and PHH3 MI (r=0.810, p<.001). The inter-observer correlation coefficient for three participants was 0.975 for mitotic counts and 0.940 for the PHH3 MI. When using the PHH3 MI instead of mitotic counts in the Armed Forces Institute of Pathology (AFIP) stratification criteria, 10 cases were reclassified. In one patient with a mitotic count of 2 and a PHH3 MI of 6 per 50 HPFs, distant metastasis occurred. Conclusions: In GISTs, the PHH3 MI correlated adequately with mitotic counts and can be used as a useful adjunctive to count mitotic figures efficiently.

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Aryan Salahi‐Niri, Paniz Zarand, Negar Mansouri, Parvaneh Rastgou, Omid Yazdani, Romina Esbati, Fatemeh Shojaeian, Behnaz Jahanbin, Zhaleh Mohsenifar, Hamid Asadzadeh Aghdaei, Farid Azmoudeh Ardalan, Seyed Amir Ahmad Safavi‐Naini
Health Science Reports.2025;[Epub] CrossRef
A retrospective study on expression and clinical significance of PHH3, Ki67 and P53 in bladder exophytic papillary urothelial neoplasms
Gaoxiu Qi, Jinmeng Liu, Shuqi Tao, Wenyuan Fan, Haoning Zheng, Meihong Wang, Hanchao Yang, Yongting Liu, Huancai Liu, Fenghua Zhou
PeerJ.2023; 11: e15675. CrossRef
Loss of Slfn3 induces a sex-dependent repair vulnerability after 50% bowel resection
Emilie E. Vomhof-DeKrey, Jack T. Lansing, Diane C. Darland, Josey Umthun, Allie D. Stover, Christopher Brown, Marc D. Basson
American Journal of Physiology-Gastrointestinal and Liver Physiology.2021; 320(2): G136. CrossRef
Phosphohistone H3 (PHH3) as a surrogate of mitotic figure count for grading in meningiomas: a comparison of PHH3 (S10) versus PHH3 (S28) antibodies
Napaporn Puripat, Kongsak Loharamtaweethong
Virchows Archiv.2019; 474(1): 87. CrossRef
Gastrointestinal Stromal Tumors Risk Stratification Utilizing Phospho-Histone H3 Evaluated by Manual Counting and Computer-Assisted Image Analysis
Cao Jin, Yan Huang, Mansoor Nasim, Yihe Yang, Lili Lee
International Journal of Surgical Pathology.2019; 27(7): 706. CrossRef
The utility of phosphohistone H3 in early prediction of benign and borderline phyllodes tumor recurrence
AymenM El-Saka, MohamedA Mlees, YomnaA Zamzam
Egyptian Journal of Pathology.2019; 39(2): 402. CrossRef
Identification of Phosphohistone H3 Cutoff Values Corresponding to Original WHO Grades but Distinguishable in Well-Differentiated Gastrointestinal Neuroendocrine Tumors
Min Jeong Kim, Mi Jung Kwon, Ho Suk Kang, Kyung Chan Choi, Eun Sook Nam, Seong Jin Cho, Hye-Rim Park, Soo Kee Min, Jinwon Seo, Ji-Young Choe, Hyoung-Chul Park
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Tumor Digital Masking Allows Precise Patient Triaging: A Study Based on Ki-67 Scoring in Gastrointestinal Stromal Tumors
Piotr Lewitowicz, Jaroslaw Matykiewicz, Magdalena Chrapek, Dorota Koziel, Agata Horecka-Lewitowicz, Martyna Gluszek-Osuch, Iwona Wawrzycka, Stanisław Gluszek
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The mitosis‐specific marker phosphohistone‐H3 (PHH3) is an independent prognosticator in uterine smooth muscle tumours: an outcome‐based study
Kin‐Long Chow, Ka‐Yu Tse, Ching‐Lung Cheung, Ka‐Wing Wong, Annie N Y Cheung, Richard W C Wong, Alice N H Chan, Nancy W F Yuen, Hextan Y S Ngan, Philip P C Ip
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Comparison of Three BRAF Mutation Tests in Formalin-Fixed Paraffin Embedded Clinical Samples: Soomin Ahn, Jeeyun Lee, Ji-Youn Sung, So Young Kang, Sang Yun Ha, Kee-Taek Jang, Yoon-La Choi, Jung-Sun Kim, Young Lyun Oh, Kyoung-Mee Kim; Korean J Pathol. 2013;47(4):348-354. Published online August 26, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.4.348

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Abstract PDF

Background

Recently, BRAF inhibitors showed dramatic treatment outcomes in BRAF V600 mutant melanoma. Therefore, the accuracy of BRAF mutation test is critical.

Methods

BRAF mutations were tested by dual-priming oligonucleotide-polymerase chain reaction (DPO-PCR), direct sequencing and subsequently retested with a real-time PCR assay, cobas 4800 V600 mutation test. In total, 64 tumors including 34 malignant melanomas and 16 papillary thyroid carcinomas were analyzed. DNA was extracted from formalin-fixed paraffin embedded tissue samples and the results of cobas test were directly compared with those of DPO-PCR and direct sequencing.

Results

BRAF mutations were found in 23 of 64 (35.9%) tumors. There was 9.4% discordance among 3 methods. Out of 6 discordant cases, 4 cases were melanomas; 3 cases were BRAF V600E detected only by cobas test, but were not detected by DPO-PCR and direct sequencing. One melanoma patient with BRAF mutation detected only by cobas test has been on vemurafenib treatment for 6 months and showed a dramatic response to vemurafenib. DPO-PCR failed to detect V600K mutation in one case identified by both direct sequencing and cobas test.

Conclusions

In direct comparison of the currently available DPO-PCR, direct sequencing and real-time cobas test for BRAF mutation, real-time PCR assay is the most sensitive method.

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Kristine Zøylner Swan, Stine Horskær Madsen, Steen Joop Bonnema, Viveque Egsgaard Nielsen, Marie Louise Jespersen
APMIS.2022; 130(11): 627. CrossRef
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Yong Joon Suh, Yeon Ju Choi
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A new primer construction technique that effectively increases amplification of rare mutant templates in samples
Jr-Kai Huang, Ling Fan, Tao-Yeuan Wang, Pao-Shu Wu
BMC Biotechnology.2019;[Epub] CrossRef
BRAF and NRAS mutations and antitumor immunity in Korean malignant melanomas and their prognostic relevance: Gene set enrichment analysis and CIBERSORT analysis
Kyueng-Whan Min, Ji-Young Choe, Mi Jung Kwon, Hye Kyung Lee, Ho Suk Kang, Eun Sook Nam, Seong Jin Cho, Hye-Rim Park, Soo Kee Min, Jinwon Seo, Yun Joong Kim, Nan Young Kim, Ho Young Kim
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The association between dermoscopic features and BRAF mutational status in cutaneous melanoma: Significance of the blue-white veil
Miquel Armengot-Carbó, Eduardo Nagore, Zaida García-Casado, Rafael Botella-Estrada
Journal of the American Academy of Dermatology.2018; 78(5): 920. CrossRef
Comparison of Five Different Assays for the Detection of BRAF Mutations in Formalin-Fixed Paraffin Embedded Tissues of Patients with Metastatic Melanoma
Claire Franczak, Julia Salleron, Cindy Dubois, Pierre Filhine-Trésarrieu, Agnès Leroux, Jean-Louis Merlin, Alexandre Harlé
Molecular Diagnosis & Therapy.2017; 21(2): 209. CrossRef
Validation of an NGS mutation detection panel for melanoma
Anne Reiman, Hugh Kikuchi, Daniela Scocchia, Peter Smith, Yee Wah Tsang, David Snead, Ian A Cree
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Transformation to Small Cell Lung Cancer of Pulmonary Adenocarcinoma: Clinicopathologic Analysis of Six Cases
Soomin Ahn, Soo Hyun Hwang, Joungho Han, Yoon-La Choi, Se-Hoon Lee, Jin Seok Ahn, Keunchil Park, Myung-Ju Ahn, Woong-Yang Park
Journal of Pathology and Translational Medicine.2016; 50(4): 258. CrossRef
Immunohistochemistry with the anti-BRAF V600E (VE1) antibody: impact of pre-analytical conditions and concordance with DNA sequencing in colorectal and papillary thyroid carcinoma
Katerina Dvorak, Birte Aggeler, John Palting, Penny McKelvie, Andrew Ruszkiewicz, Paul Waring
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Proposal for a Standardized Pathology Report of Gastroenteropancreatic Neuroendocrine Tumors: Prognostic Significance of Pathological Parameters: Mee-Yon Cho, Jin Hee Sohn, So Young Jin, Hyunki Kim, Eun Sun Jung, Mi-Jung Kim, Kyoung-Mee Kim, Woo Ho Kim, Joon Mee Kim, Yun Kyung Kang, Joon Hyuk Choi, Dae Young Kang, Youn Wha Kim, Eun Hee Choi; Korean J Pathol. 2013;47(3):227-237. Published online June 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.3.227

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Abstract PDF

Background

There is confusion in the diagnosis and biological behaviors of gastroenteropancreatic neuroendocrine tumors (GEP-NETs), because of independently proposed nomenclatures and classifications. A standardized form of pathology report is required for the proper management of patients.

Methods

We discussed the proper pathological evaluation of GEP-NET at the consensus conference of the subcommittee meeting for the Gastrointestinal Pathology Study Group of the Korean Society of Pathologists. We then verified the prognostic significance of pathological parameters from our previous nationwide collection of pathological data from 28 hospitals in Korea to determine the essential data set for a pathology report.

Results

Histological classification, grading (mitosis and/or Ki-67 labeling index), T staging (extent, size), lymph node metastasis, and lymphovascular and perineural invasion were significant prognostic factors and essential for the pathology report of GEP-NET, while immunostaining such as synaptophysin and chromogranin may be optional. Furthermore, the staging system, either that of the 2010 American Joint Cancer Committee (AJCC) or the European Neuroendocrine Tumor Society (ENETS), should be specified, especially for pancreatic neuroendocrine neoplasms.

Conclusions

A standardized pathology report is crucial for the proper management and prediction of prognosis of patients with GEP-NET.

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Analysis of Prognostic Risk Factors of Endoscopic Submucosal Dissection (ESD) and Curative Resection of Gastrointestinal Neuroendocrine Neoplasms
Yuan Si, ChaoKang Huang, JingBin Yuan, XianHui Zhang, QingQiang He, ZhiJin Lin, Ling He, ZhongXin Liu, Yuvaraja Teekaraman
Contrast Media & Molecular Imaging.2022;[Epub] CrossRef
Standardization of the pathologic diagnosis of appendiceal mucinous neoplasms
Dong-Wook Kang, Baek-hui Kim, Joon Mee Kim, Jihun Kim, Hee Jin Chang, Mee Soo Chang, Jin-Hee Sohn, Mee-Yon Cho, So-Young Jin, Hee Kyung Chang, Hye Seung Han, Jung Yeon Kim, Hee Sung Kim, Do Youn Park, Ha Young Park, So Jeong Lee, Wonae Lee, Hye Seung Lee,
Journal of Pathology and Translational Medicine.2021; 55(4): 247. CrossRef
Preoperative diagnosis of well‐differentiated neuroendocrine tumor in common hepatic duct by brush cytology: A case report
Jiwoon Choi, Kyong Joo Lee, Sung Hoon Kim, Mee‐Yon Cho
Diagnostic Cytopathology.2019; 47(7): 720. CrossRef
Primary renal well-differentiated neuroendocrine tumors: report of six cases with an emphasis on the Ki-67 index and mitosis
Bohyun Kim, Han-Seong Kim, Kyung Chul Moon
Diagnostic Pathology.2019;[Epub] CrossRef
Primary low‐grade neuroendocrine carcinoma of the skin: An exceedingly rare entity
Tiffany Y. Chen, Annie O. Morrison, Joe Susa, Clay J. Cockerell
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Prognostic Validity of the American Joint Committee on Cancer and the European Neuroendocrine Tumors Staging Classifications for Pancreatic Neuroendocrine Tumors
Jae Hee Cho, Ji Kon Ryu, Si Young Song, Jin-Hyeok Hwang, Dong Ki Lee, Sang Myung Woo, Young-Eun Joo, Seok Jeong, Seung-Ok Lee, Byung Kyu Park, Young Koog Cheon, Jimin Han, Tae Nyeun Kim, Jun Kyu Lee, Sung-Hoon Moon, Hyunjin Kim, Eun Taek Park, Jae Chul Hw
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Early diagnosis and treatment of gastrointestinal neuroendocrine tumors
Hong Shen, Zhuo Yu, Jing Zhao, Xiu-Zhen Li, Wen-Sheng Pan
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Recent Updates on Neuroendocrine Tumors From the Gastrointestinal and Pancreatobiliary Tracts
Joo Young Kim, Seung-Mo Hong
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Koji Takumi, Yoshihiko Fukukura, Michiyo Higashi, Junnichi Ideue, Tomokazu Umanodan, Hiroto Hakamada, Ichiro Kanetsuki, Takashi Yoshiura
European Journal of Radiology.2015; 84(8): 1436. CrossRef
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Jean-Yves Scoazec, Anne Couvelard
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Václav Mandys, Tomáš Jirásek
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Hee Sung Kim, Hye Seung Lee, Kyung Han Nam, Jiwoon Choi, Woo Ho Kim
Cancer Research and Treatment.2014; 46(4): 383. CrossRef

Silent Colonic Malakoplakia in a Living-Donor Kidney Transplant Recipient Diagnosed during Annual Medical Examination: Go Eun Bae, Nara Yoon, Ha Young Park, Sang Yun Ha, Junhun Cho, Yunkyung Lee, Kyoung-Mee Kim, Cheol Keun Park; Korean J Pathol. 2013;47(2):163-166. Published online April 24, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.2.163

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Abstract PDF

Malakoplakia is a characteristic inflammatory condition, which is usually seen in the urogenital tract, and less frequently in the gastrointestinal tract. We present a case of colonic malakoplakia in an immunocompromised patient. A 55-year-old female visited the outpatient clinic for routine cancer surveillance. Her past medical history was significant for kidney transplantation 11 years ago, and she had been taking immunosuppressants. A colonoscopy revealed several depressed flat lesions and elevated polyps, which were 0.3 to 0.4 cm in size and accompanied by whitish exudates. A biopsy revealed an infiltration of histiocytes with ample granular eosinophilic cytoplasm, with some lymphocytes and plasma cells. Many histiocytes had the characteristic morphology, described as Michaelis-Gutmann bodies: one or several round basophilic structures of approximately 1 to 10 µm in size with some being laminated, some appearing homogeneous, and others having a dense central core with a targetoid appearance. These Michaelis-Gutmann bodies were positively stained on von Kossa stain, and were diagnostic for malakoplakia.

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Prathap Kumar Simhadri, Renish Contractor, Deepak Chandramohan, Matthew McGee, Udit Nangia, Mohammad Atari, Syed Bushra, Sanjana Kapoor, Ramya Krishna Velagapudi, Pradeep K Vaitla
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John Fredy Nieto‐Ríos, Isabel Ramírez, Mónica Zuluaga‐Quintero, Lina María Serna‐Higuita, Federico Gaviria‐Gil, Alejandro Velez‐Hoyos
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Plexiform Angiomyxoid Myofibroblastic Tumor of the Stomach: Report of Two Cases and Review of the Literature: Youngran Kang, Wonkyung Jung, In-Gu Do, Eui Jin Lee, Min Hyeong Lee, Kyoung-Mee Kim, Jongsang Choi; Korean J Pathol. 2012;46(3):292-296. Published online June 22, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.3.292

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Abstract PDF

Plexiform angiomyxoid myofibroblastic tumor (PAMT) of the stomach is a recently recognized entity. Because of its rarity, only 22 cases have been reported in the English-language literature and most of these are single case reports. We report two cases of gastric PAMT. The tumor cells were bland and plexiform arranged in a myxoid stroma, which was positive for alcian blue. Immunohistochemically, the tumor cells were positive for smooth muscle actin, but negative for c-kit, CD34, desmin, S-100 protein, epithelial membrane antigen, neurofilament, and protein kinase C-theta. Mutation analyses for exon 9, 11, 13, and 17 of KIT genes and 12, 14, and 18 of the platelet-derived growth factor receptor alpha (PDGFRA) genes were performed and the tumors were wild-type for mutation.

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Gastric Adenocarcinoma of Fundic Gland Type: Report of Three Cases: Eun Su Park, Young Eun Kim, Cheol Keun Park, Takashi Yao, Ryoji Kushima, Kyoung-Mee Kim; Korean J Pathol. 2012;46(3):287-291. Published online June 22, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.3.287

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Abstract PDF

Recently, fundic gland type gastric adenocarcinoma (GA-FG) has been reported as a new entity. This report describes GA-FG among Koreans for the first time. From March 2008 to July 2010 we identified only three cases of GA-FG out of over 6,000 GAs resected by endoscopy or surgery. Cell differentiation by mucin proteins, pepsinogen-I, and H+/K+-ATPase was evaluated. All three cases were male patients and diagnosed as early stage GA. Histologically, GA-FGs were well-differentiated adenocarcinoma with pale gray-blue, basophilic columnar or cuboidal cells and mildly enlarged nuclei, resembling chief cells. All three cases were positive for pepsinogen-I and were classified as gastric mucin phenotype. Among three histologic subtypes of GA-FG, since tumors were mainly composed of chief cells, our three cases were classified as chief cell predominant type. In conclusion, GA-FG is very rare among Koreans and pepsinogen-I and MUC6 expression are typical immunohistochemical findings in GA-FG suggesting differentiation toward fundic glands.

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