Journal of Pathology and Translational Medicine

Original Articles

The spectrum of microvascular patterns in adult diffuse glioma and their correlation with tumor grade: Soni , Vaishali Walke, Deepti Joshi, Tanya Sharma, Adesh Shrivastava, Amit Agrawal; J Pathol Transl Med. 2024;58(3):127-133. Published online May 14, 2024; DOI: https://doi.org/10.4132/jptm.2024.03.11

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Abstract PDF: Background
Primary brain tumors constitute the leading cause of cancer-related mortality. Among them, adult diffuse gliomas are the most common type, affecting the cerebral hemispheres and displaying a diffuse infiltrative pattern of growth in the surrounding neuropil that accounts for about 80% of all primary intracranial tumors. The hallmark feature of gliomas is blood vessel proliferation, which plays an important role in tumor growth, tumor biological behavior, and disease outcome. High-grade gliomas exhibit increased vascularity, the worst prognosis, and lower survival rates. Several angiogenic receptors and factors are upregulated in glioblastomas and stimulate angiogenesis signaling pathways by means of activating oncogenes and/or down-regulating tumor-suppressor genes. Existing literature has emphasized that different microvascular patterns (MVPs) are displayed in different subtypes of adult diffuse gliomas.
Methods
We examined the distribution and biological characteristics of different MVPs in 50 patients with adult diffuse gliomas. Haematoxylin and eosin staining results, along with periodic acid–Schiff and CD34 dual-stained sections, were examined to assess the vascular patterns and correlate with different grades of diffuse glioma.
Results
The present observational study on adult diffuse glioma evaluated tumor grade and MVPs. Microvascular sprouting was the most common pattern, while a bizarre pattern (type 2) was associated with the presence of a high-grade glioma. Vascular mimicry was observed in 6% of cases, all of which were grade 4 gliomas.
Conclusions
This study supplements the role of neo-angiogenesis and aberrant vasculature patterns in the grading and progression of adult diffuse gliomas, which can be future targets for planning treatment strategies.

BRCA-mutated gastric adenocarcinomas are associated with chromosomal instability and responsiveness to platinum-based chemotherapy: Ji Hyun Oh, Chang Ohk Sung, Hyung-Don Kim, Sung-Min Chun, Jihun Kim; J Pathol Transl Med. 2023;57(6):323-331. Published online November 14, 2023; DOI: https://doi.org/10.4132/jptm.2023.10.22

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Abstract PDF Supplementary Material: Background
Homologous recombination defect is an important biomarker of chemotherapy in certain tumor types, and the presence of pathogenic or likely pathogenic mutations involving BRCA1 or BRCA2 (p-BRCA) mutations is the most well-established marker for the homologous recombination defect. Gastric cancer, one of the most prevalent tumor types in Asia, also harbors p-BRCA mutations.
Methods
To investigate the clinical significance of p-BRCA mutations, we analyzed 366 gastric cancer cases through next-generation sequencing. We determined the zygosity of p-BRCA mutations based on the calculated tumor purity through variant allelic fraction patterns and investigated whether the presence of p-BRCA mutations is associated with platinum-based chemotherapy and a certain molecular subtype.
Results
Biallelic p-BRCA mutation was associated with better response to platinum-based chemotherapy than heterozygous p-BRCA mutation or wild type BRCA genes. The biallelic p-BRCA mutations was observed only in the chromosomal instability subtype, while all p-BRCA mutations were heterozygous in microsatellite instability subtype.
Conclusions
In conclusion, patients with gastric cancer harboring biallelic p-BRCA mutations were associated with a good initial response to platinum-based chemotherapy and those tumors were exclusively chromosomal instability subtype. Further investigation for potential association with homologous recombination defect is warranted.

Review

Clinicopathological characteristics of BRCA-associated breast cancer in Asian patients: Eun-Kyu Kim, So Yeon Park, Sung-Won Kim; J Pathol Transl Med. 2020;54(4):265-275. Published online May 14, 2020; DOI: https://doi.org/10.4132/jptm.2020.04.07

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Abstract PDF

BRCA1/2 germline mutations account for the majority of hereditary breast cancers. Since the identification of the BRCA genes, several attempts have been made to define the clinicopathological characteristics of BRCA-associated breast cancer in comparison with sporadic breast cancer. Asians constitute 60% of the world population, and although the incidence of breast cancer in Asia remains low compared to the West, breast cancer is the most prevalent female cancer in the region. The epidemiological aspects of breast cancer are different between Asians and Caucasians. Asian patients present with breast cancer at a younger age than Western patients. The contributions of BRCA1/2 mutations to breast cancer incidence are expected to differ between Asians and Caucasians, and the different genetic backgrounds among races are likely to influence the breast cancer phenotypes. However, most large-scale studies on the clinicopathological characteristics of BRCA-associated breast cancer have been on Western patients, while studies on Asian populations were small and sporadic. In this review, we provide an overview of the clinical and pathological characteristics of BRCA-associated breast cancer, incorporating findings on Asian patients.

Citations

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Characteristics of breast cancer patients tested for germline BRCA1/2 mutations by next‐generation sequencing in Ramathibodi Hospital, Mahidol University
Songporn Oranratnachai, Watchalawalee Yamkaew, Atchara Tunteeratum, Thongchai Sukarayothin, Nareenart Iemwimangsa, Ravat Panvichien
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Mutations of TP53 and genes related to homologous recombination repair in breast cancer with germline BRCA1/2 mutations
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BioMed Research International.2022; 2022: 1. CrossRef
Prevalence and Factors Associated with BRCA1/2 Gene Mutation in Chinese Populations with Breast Cancer
Guoding Huang, Hongquan Lu, Qizhu Chen, Xinting Huang
International Journal of General Medicine.2022; Volume 15: 6783. CrossRef
Association between fertility treatments and breast cancer risk in women with a family history or BRCA mutations: a systematic review and meta-analysis
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Relationship between Baseline [18F]FDG PET/CT Semiquantitative Parameters and BRCA Mutational Status and Their Prognostic Role in Patients with Invasive Ductal Breast Carcinoma
Francesco Dondi, Domenico Albano, Pietro Bellini, Luca Camoni, Giorgio Treglia, Francesco Bertagna
Tomography.2022; 8(6): 2662. CrossRef
The clinical and diagnostic characteristics of BRCA-associated breast cancer
M.A. Golotyuk, A.A. Berezhnoy, N.V. Kazantseva, A.V. Dorofeev, S.A. Shevchenko, I.V. Borzunov, N.I. Rozhkova
Onkologiya. Zhurnal imeni P.A.Gertsena.2022; 11(6): 18. CrossRef
The Clinical and Pathological Profile of BRCA1 Gene Methylated Breast Cancer Women: A Meta-Analysis
Ilary Ruscito, Maria Luisa Gasparri, Maria Paola De Marco, Flavia Costanzi, Aris Raad Besharat, Andrea Papadia, Thorsten Kuehn, Oreste Davide Gentilini, Filippo Bellati, Donatella Caserta
Cancers.2021; 13(6): 1391. CrossRef
Changing Patterns in Clinicopathological Characteristics of Breast Cancer and Prevalence of BRCA Mutations: Analysis in a Rural Area of Southern China
Qiuming Wang, Heming Wu, Yongquan Lan, Jinhong Zhang, Jingna Wu, Yunuo Zhang, Liang Li, Donghua Liu, Jinfeng Zhang
International Journal of General Medicine.2021; Volume 14: 7371. CrossRef

Original Article

Implication of PHF2 Expression in Clear Cell Renal Cell Carcinoma: Cheol Lee, Bohyun Kim, Boram Song, Kyung Chul Moon; J Pathol Transl Med. 2017;51(4):359-364. Published online June 13, 2017; DOI: https://doi.org/10.4132/jptm.2017.03.16

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Abstract PDF

Background
Clear cell renal cell carcinoma (CCRCC) is presumed to be associated with adipogenic differentiation. Histone modification is known to be important for adipogenesis, and the function of histone demethylase plant homeodomain finger 2 (PHF2) has been noted. In addition, PHF2 may act as a tumor suppressor via epigenetic regulation of p53 and is reported to be reduced in colon cancer and stomach cancer tissues. In this study, we examined PHF2 expression in CCRCC specimens by immunohistochemistry.
Methods
We studied 254 CCRCCs and 56 non-neoplastic renal tissues from patients who underwent radical or partial nephrectomy between 2000 and 2003 at the Seoul National University Hospital. Tissue microarray blocks were prepared, and immunohistochemical staining for PHF2 was performed.
Results
Among 254 CCRCC cases, 150 cases (59.1%) showed high expression and 104 cases (40.1%) showed low expression. High expression of PHF2 was significantly correlated with a low Fuhrman nuclear grade (p < .001), smaller tumor size (p < .001), low overall stage (p = .003), longer cancer-specific survival (p = .002), and progression-free survival (p < .001) of the patients. However, it was not an independent prognostic factor in multivariate analysis adjusted for Fuhrman nuclear grade and overall stage.
Conclusions
Our study showed that low expression of PHF2 is associated with aggressiveness and poor prognosis of CCRCC.

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Plant homeodomain finger protein 2 as a novel IKAROS target in acute lymphoblastic leukemia
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Reviews

Pathology-MRI Correlation of Hepatocarcinogenesis: Recent Update: Jimi Huh, Kyung Won Kim, Jihun Kim, Eunsil Yu; J Pathol Transl Med. 2015;49(3):218-229. Published online May 15, 2015; DOI: https://doi.org/10.4132/jptm.2015.04.15

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Abstract PDF

Understanding the important alterations during hepatocarcinogenesis as well as the characteristic magnetic resonance imaging (MRI) and histopathological features will be helpful for managing patients with chronic liver disease and hepatocellular carcinoma. Recent advances in MRI techniques, such as fat/iron quantification, diffusion-weighted images, and gadoxetic acid-enhanced MRI, have greatly enhanced our understanding of hepatocarcinogenesis.

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Molecular Imaging in the Era of Personalized Medicine: Kyung-Ho Jung, Kyung-Han Lee; J Pathol Transl Med. 2015;49(1):5-12. Published online January 15, 2015; DOI: https://doi.org/10.4132/jptm.2014.10.24

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Abstract PDF

Clinical imaging creates visual representations of the body interior for disease assessment. The role of clinical imaging significantly overlaps with that of pathology, and diagnostic workflows largely depend on both fields. The field of clinical imaging is presently undergoing a radical change through the emergence of a new field called molecular imaging. This new technology, which lies at the intersection between imaging and molecular biology, enables noninvasive visualization of biochemical processes at the molecular level within living bodies. Molecular imaging differs from traditional anatomical imaging in that biomarkers known as imaging probes are used to visualize target molecules-of-interest. This ability opens up exciting new possibilities for applications in oncologic, neurological and cardiovascular diseases. Molecular imaging is expected to make major contributions to personalized medicine by allowing earlier diagnosis and predicting treatment response. The technique is also making a huge impact on pharmaceutical development by optimizing preclinical and clinical tests for new drug candidates. This review will describe the basic principles of molecular imaging and will briefly touch on three examples (from an immense list of new techniques) that may contribute to personalized medicine: receptor imaging, angiogenesis imaging, and apoptosis imaging.

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Original Articles

Evaluation of Protein Expression in Housekeeping Genes across Multiple Tissues in Rats: Hye Jeong Kim, Jong In Na, Byung Woo Min, Joo Young Na, Kyung Hwa Lee, Jae Hyuk Lee, Young Jik Lee, Hyung Seok Kim, Jong Tae Park; Korean J Pathol. 2014;48(3):193-200. Published online June 26, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.3.193

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Abstract PDF

Background

Housekeeping genes, which show constant protein expression patterns between different tissue types, are very important in molecular biological studies as an internal control for protein research.

Methods

The protein expression profiles of seven housekeeping genes (HPRT1, PPIA, GYS1, TBP, YWHAZ, GAPDH and ACTB) in various rat tissues (cerebrum, cerebellum, cardiac ventricle and atrium, psoas muscle, femoral muscle, liver, spleen, kidney, and aorta) were analyzed by Western blot and compared by coefficient of variation (CV).

Results

HPRT1 was stably expressed (CV≤10%) in six tissues (cerebrum, cerebellum, ventricle, femoral muscle, spleen, and kidney), PPIA was stably expressed in five tissues (cerebrum, cerebellum, ventricle, spleen and kidney), YWHAZ was stably expressed in three tissues (cerebrum, cerebellum, and kidney), and GAPDH was stably expressed in four tissues (cerebrum, ventricle, psoas muscle, and kidney). In comparison, GYS1, TBP, and ACTB were found to have CV values over 10% in all tissues. Of the seven genes examined, four (HPRT1, PPIA, YWHAZ, and GAPDH) were found to be stably expressed across multiple organs, with low CV values (≤10%).

Conclusions

These results will provide fundamental information regarding internal controls for protein expression studies and can be used for analysis of postmortem protein degradation patterns in forensic medicine.

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The Journal of Neuroscience.2020; 40(2): 459. CrossRef
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Kai Shen, Harshavardhan Kenche, Hua Zhao, Jinping Li, Jasimine Stone
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Combined proteomic and miRNome analyses of mouse testis exposed to an endocrine disruptors chemicals mixture reveals altered toxicological pathways involved in male infertility
Julio Buñay, Eduardo Larriba, Daniel Patiño-Garcia, Paulina Urriola-Muñoz, Ricardo D Moreno, Jesús del Mazo
MHR: Basic science of reproductive medicine.2019; 25(3): 156. CrossRef
Postmortem proteomics to discover biomarkers for forensic PMI estimation
Kyoung-Min Choi, Angela Zissler, Eunjung Kim, Bianca Ehrenfellner, Eunji Cho, Se-in Lee, Peter Steinbacher, Ki Na Yun, Jong Hwan Shin, Jin Young Kim, Walter Stoiber, Heesun Chung, Fabio Carlo Monticelli, Jae-Young Kim, Stefan Pittner
International Journal of Legal Medicine.2019; 133(3): 899. CrossRef
Aging‐associated changes in hippocampal glycogen metabolism in mice. Evidence for and against astrocyte‐to‐neuron lactate shuttle
Dominika Drulis‐Fajdasz, Agnieszka Gizak, Tomasz Wójtowicz, Jacek R. Wiśniewski, Dariusz Rakus
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New insights into the distribution, protein abundance and subcellular localisation of the endogenous peroxisomal biogenesis proteins PEX3 and PEX19 in different organs and cell types of the adult mouse
Claudia Colasante, Jiangping Chen, Barbara Ahlemeyer, Rocio Bonilla-Martinez, Srikanth Karnati, Eveline Baumgart-Vogt, Stephan N. Witt
PLOS ONE.2017; 12(8): e0183150. CrossRef
Identification of valid endogenous control genes for determining gene expression in C6 glioma cell line treated with conditioned medium from adipose-derived stem cell
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Sclerosing Mucoepidermoid Carcinoma in the Parotid Gland: Literature Review
Chang-Ki Woo, Bae-Hyun Kim, Byung-Joo Lee, Jin-Choon Lee
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Uncommon and Rare Human Papillomavirus Genotypes Relating to Cervical Carcinomas: Na Rae Kim, Myunghee Kang, Soon Pyo Lee, Hyunchul Kim, Jungsuk An, Dong Hae Chung, Seung Yeon Ha, Hyun Yee Cho; Korean J Pathol. 2014;48(1):43-49. Published online February 25, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.1.43

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Abstract PDF

Background

Human papillomavirus (HPV) is an oncogenic virus in cervical cancer and most invasive carcinomas (ICs) are caused by HPV16 and 18. However, the roles and contributions of other uncommon and rare genotypes remain uncertain.

Methods

HPV genotypes were retrospectively assessed using an HPV DNA chip that can specify up to 32 HPV genotypes. We arbitrarily regarded genotypes accounting for less than 6% of the total as uncommon and rare genotypes.

Results

A total of 3,164 HPV-positive cases were enrolled. In groups 2A, 2B, 3, and unclassified HPV genotypes, 2.4% of cases with uncommon HPV genotypes (68, 26, 34, 53, 66, 69, 70, 73, 40, 42, 43, 44, 54, 55, 61, 62, 6, and 11) showed high grade squamous intraepithelial lesions and ICs. There were no HPV32- and 57-infected cases.

Conclusions

We found that the uncommon and rare HPV genotypes may provide incremental etiologic contributions in cervical carcinogenesis, especially HPV68, 70, and 53. Further studies on these uncommon and rare HPV genotypes will be of importance in establishing the significance of genotypes in different regions, especially in planning a strategy for further vaccine development as well as follow-up on the effectiveness of the currently used vaccines.

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Human Papillomavirus (HPV69/HPV73) Coinfection associated with Simultaneous Squamous Cell Carcinoma of the Anus and Presumed Lung Metastasis
Stephanie Shea, Marina Muñoz, Stephen C. Ward, Mary B. Beasley, Melissa R Gitman, Michael D Nowak, Jane Houldsworth, Emilia Mia Sordillo, Juan David Ramirez, Alberto E. Paniz Mondolfi
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Human Papillomavirus Selected Properties and Related Cervical Cancer Prevention Issues
Saule Balmagambetova, Andrea Tinelli, Ospan A. Mynbaev, Arip Koyshybaev, Olzhas Urazayev, Nurgul Kereyeva, Elnara Ismagulova
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Periungual Bowen's disease with a narrow longitudinal melanonychia mimicking periungual warts
Taiyo HITAKA, Michiko HASEGAWA, Akira SHIMIZU, Yuko KURIYAMA, Atsushi TAMURA
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Detection of HPV RNA molecules in stratified mucin-producing intraepithelial lesion (SMILE) with concurrent cervical intraepithelial lesion: a case report
Shiho Fukui, Kazunori Nagasaka, Naoko Iimura, Ranka Kanda, Takayuki Ichinose, Takeru Sugihara, Haruko Hiraike, Shunsuke Nakagawa, Yuko Sasajima, Takuya Ayabe
Virology Journal.2019;[Epub] CrossRef
Pitfalls of commercially available HPV tests in HPV68a detection
Hana Jaworek, Katerina Kubanova, Vladimira Koudelakova, Rastislav Slavkovsky, Jiri Drabek, Marian Hajduch, Craig Meyers
PLOS ONE.2019; 14(8): e0220373. CrossRef
Overall accuracy of cervical cytology and clinicopathological significance of LSIL cells in ASC‐H cytology
S. H. Kim, J. M. Lee, H. G. Yun, U. S. Park, S. U. Hwang, J.‐S. Pyo, J. H. Sohn
Cytopathology.2017; 28(1): 16. CrossRef
Human papillomavirus genotyping by Linear Array and Next-Generation Sequencing in cervical samples from Western Mexico
María Guadalupe Flores-Miramontes, Luis Alberto Torres-Reyes, Liliana Alvarado-Ruíz, Salvador Angel Romero-Martínez, Verenice Ramírez-Rodríguez, Luz María Adriana Balderas-Peña, Verónica Vallejo-Ruíz, Patricia Piña-Sánchez, Elva Irene Cortés-Gutiérrez, Lu
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Impact of human papillomavirus coinfections on the risk of high-grade squamous intraepithelial lesion and cervical cancer
Adela Carrillo-García, Sergio Ponce-de-León-Rosales, David Cantú-de-León, Verónica Fragoso-Ontiveros, Imelda Martínez-Ramírez, Asunción Orozco-Colín, Alejandro Mohar, Marcela Lizano
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Human papillomavirus 66‐associated subungual squamous cell carcinoma
Jin Hee Kang, Hwa young Ahn, Miri Kim, Shin Taek Oh, Baik Kee Cho, Hyun Jeong Park
The Journal of Dermatology.2014; 41(12): 1119. CrossRef

Primary Squamous Cell Carcinoma of the Upper Genital Tract: Utility of p16^INK4a Expression and HPV DNA Status in its Differential Diagnosis from Extended Cervical Squamous Cell Carcinoma: Su Hyun Yoo, Eun-Mi Son, Chang Okh Sung, Kyu-Rae Kim; Korean J Pathol. 2013;47(6):549-556. Published online December 24, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.6.549

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Abstract PDF

Background

Primary squamous cell carcinoma (SCC) of the upper genital tract, including the endometrium, fallopian tubes, and ovaries, is extremely rare. It must be distinguished from the mucosal extension of primary cervical SCC because determination of the primary tumor site is important for tumor staging. However, patients with SCC of the fallopian tubes or ovarian surface have often undergone prior hysterectomy with inadequate examination of the cervix, making it difficult to determine the primary site.

Methods

We compared histologic findings, p16^INK4a expression, and human papillomavirus (HPV) DNA status in four patients with primary SCC of the upper genital tract and five patients with primary cervical SCC extending to the mucosa of the upper genital tract.

Results

All five SCCs of cervical origin showed strong expression of p16^INK4a, whereas all four SCCs of the upper genital tract were negative, although one showed weak focal staining. Three of the five cervical SCCs were positive for HPV16 DNA, whereas all four primary SCCs of the upper genital tract were negative for HPV DNA.

Conclusions

Although a thorough histological examination is important, immunonegativity for p16^INK4a and negative for HPV DNA may be useful adjuncts in determining primary SCCs of the upper genital tract.

Citations

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PAX8 Positivity, Abnormal p53 Expression, and p16 Negativity in a Primary Endometrial Squamous Cell Carcinoma: A Case Report and Review of the Literature
Daniela Fanni, Michele Peiretti, Valerio Mais, Elena Massa, Clara Gerosa, Francesca Ledda, Maria Luisa Fais, Gavino Faa, Stefano Angioni
International Journal of Gynecological Pathology.2022; 41(4): 431. CrossRef
Molecular Analysis of HPV-independent Primary Endometrial Squamous Cell Carcinoma Reveals TP53 and CDKN2A Comutations
Mark R. Hopkins, Doreen N. Palsgrove, Brigitte M. Ronnett, Russell Vang, Jeffrey Lin, Tricia A. Murdock
American Journal of Surgical Pathology.2022; 46(12): 1611. CrossRef
Primary squamous cell carcinoma of the endometrium—Case report with cytological characteristics in direct and indirect endometrial samples
Sanda Rajhvajn, Ana Barišić, Lada Škopljanac‐Mačina, Danijela Jurič, Vesna Mahovlić
Cytopathology.2021; 32(6): 823. CrossRef
Überraschung in der Abradatdiagnostik
U. Kellner, A. Kellner, U. Cirkel
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Retropharyngeal Lymph Node Metastasis in 54 Patients with Oropharyngeal Squamous Cell Carcinoma Who Underwent Surgery-Based Treatment
Eun-Jae Chung, Go-Woon Kim, Bum-Ki Cho, Sung-Jin Cho, Dae-Young Yoon, Young-Soo Rho
Annals of Surgical Oncology.2015; 22(9): 3049. CrossRef

Immunohistochemical Classification of Primary and Secondary Glioblastomas: Kyu Sang Lee, Gheeyoung Choe, Kyung Han Nam, An Na Seo, Sumi Yun, Kyung Ju Kim, Hwa Jin Cho, Sung Hye Park; Korean J Pathol. 2013;47(6):541-548. Published online December 24, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.6.541

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Abstract PDF

Background

Glioblastomas may develop de novo (primary glioblastomas, P-GBLs) or through progression from lower-grade astrocytomas (secondary glioblastomas, S-GBLs). The aim of this study was to compare the immunohistochemical classification of glioblastomas with clinically determined P-GBLs and S-GBLs to identify the best combination of antibodies for immunohistochemical classification.

Methods

We evaluated the immunohistochemical expression of epidermal growth factor receptor (EGFR), p53, and isocitrate dehydrogenase 1 (IDH-1) in 150 glioblastoma cases.

Results

According to clinical history, the glioblastomas analyzed in this study consisted of 146 P-GBLs and 4 S-GBLs. Immunohistochemical expression of EGFR, p53, and IDH-1 was observed in 62.6%, 49.3%, and 11.1%, respectively. Immunohistochemical profiles of EGFR(+)/p53(-), IDH-1(-)/EGFR(+)/p53(-), and EGFR(-)/p53(+) were noted in 41.3%, 40.2%, and 28.7%, respectively. Expression of IDH-1 and EGFR(-)/p53(+) was positively correlated with young age. The typical immunohistochemical features of S-GBLs comprised IDH-1(+)/EGFR(-)/p53(+), and were noted in 3.6% of clinically P-GBLs. The combination of IDH-1(-) or EGFR(+) was the best set of immunohistochemical stains for identifying P-GBLs, whereas the combination of IDH-1(+) and EGFR(-) was best for identifying S-GBLs.

Conclusions

We recommend a combination of IDH-1 and EGFR for immunohistochemical classification of glioblastomas. We expect our results to be useful for determining treatment strategies for glioblastoma patients.

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Case Study

Peripheral Primitive Neuroectodermal Tumor with Osseous Component of the Small Bowel Mesentery: A Case Study: Joon Mee Kim, Young Chae Chu, Chang Hwan Choi, Lucia Kim, Suk Jin Choi, In Suh Park, Jee Young Han, Kyung Rae Kim, Yoon-La Choi, Taeeun Kim; Korean J Pathol. 2013;47(1):77-81. Published online February 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.1.77

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Abstract PDF

A case of peripheral primitive neuroectodermal tumor of the small bowel mesentery with osseous component is reported. A 23-year-old man was admitted to our hospital because of acute severe abdominal pain. Abdominal computed tomography revealed a large solid and cystic, oval shaped mass, measuring 11.0×6.0 cm in the pelvic cavity. Histologically the resected lesion consisted of sheets of undifferentiated small round cells forming Homer-Wright rosettes and perivascular pseudorosettes, and showed areas of osteoid and bone formation. Immunohistochemical studies revealed that tumor cells expressed positivity against CD99 (MIC2), CD57, neuron-specific enolase, and vimentin. Fluorescence in situ hybridization study revealed Ewing sarcoma breakpoint region 1 (EWSR1) gene rearrangement on chromosome 22q12. To the authors' knowledge this is the first documentation of a peripheral neuroectodermal tumor with osteoid and bone formation of the small bowel mesentery.

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Primary Ewing’s sarcoma in a small intestine – a case report and review of the literature
Andrej Kolosov, Audrius Dulskas, Kastytis Pauza, Veslava Selichova, Dmitrij Seinin, Eugenijus Stratilatovas
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Case Report

Primary Endometrial Squamous Cell Carcinoma: A Case Report and Review of Relevant Literature on Korean Women: Sung Jong Lee, Hyun Joo Choi; Korean J Pathol. 2012;46(4):395-398. Published online August 23, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.4.395

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Abstract PDF

Primary endometrial squamous cell carcinoma (PESCC) is an extremely rare tumor with unclear pathogenesis. A 54-year-old postmenopausal woman presented with a 6-month history of vaginal bleeding. The patient was provisionally diagnosed with uterine submucosal leiomyoma. This was followed by total hysterectomy with a bilateral salpingo-oophorectomy under the laparoscopic guidance. Histopathologically, the tumor was PESCC which was accompanied by a lack of the tumor in the uterine cervix. The tumor showed positive immunoreactivity for p^16INK4a. But there was no evidence of human papillomavirus (HPV) on in situ hybridization and HPV DNA chip analysis. We also present a review of the relevant literature on Korean women.

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p16 Block Type Overexpression, p53 Wild Type Reactivity, and Cervical Involvement do not Always Exclude the Diagnosis of Primary Endometrial Squamous Cell Carcinoma (PESCC)
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Heena Gautam, Sumita Mehta, Nidhi Nayar, Neha Kumar, Syed Akhtar Husain, Mausumi Bharadwaj
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Daniela Fanni, Michele Peiretti, Valerio Mais, Elena Massa, Clara Gerosa, Francesca Ledda, Maria Luisa Fais, Gavino Faa, Stefano Angioni
International Journal of Gynecological Pathology.2022; 41(4): 431. CrossRef
Molecular Analysis of HPV-independent Primary Endometrial Squamous Cell Carcinoma Reveals TP53 and CDKN2A Comutations
Mark R. Hopkins, Doreen N. Palsgrove, Brigitte M. Ronnett, Russell Vang, Jeffrey Lin, Tricia A. Murdock
American Journal of Surgical Pathology.2022; 46(12): 1611. CrossRef
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Sanda Rajhvajn, Ana Barišić, Lada Škopljanac‐Mačina, Danijela Jurič, Vesna Mahovlić
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Tchin Darré, Abdoul-Samadou Aboubakari, Lantam Sonhaye, Baguilane Douaguibe, Akila Bassowa, Gado Napo-Koura
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Chao Zhang, Hongyan Zhang, Linqing Yang, Yunfei Wang, Xiaoyu Li, Jinfeng Guo, Jing Xu
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Hongfei Jiang, Hang Hu, Fan Lin, Yoon Pin Lim, Yunfen Hua, Xiaomei Tong, Songying Zhang
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Original Articles

The Expression of Pigment Epithelium-Derived Factor in Bladder Transitional Cell Carcinoma: Tae Jung Jang, Sung Woo Kim, Kyung Seop Lee; Korean J Pathol. 2012;46(3):261-265. Published online June 22, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.3.261

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Abstract PDF

Background

Pigment epithelium-derived factor (PEDF) is an anti-angiogenic factor. The purpose of this study is to examine the involvement of PEDF in the angiogenesis and biological behavior of bladder transitional cell carcinoma (TCC).

Methods

We examined the expression of PEDF in 99 bladder TCCs and ten non-neoplastic tissues, and evaluated microvessel density (MVD).

Results

The positive immunoreactivity for PEDF was seen in normal urothelium in 60% (6/10) and TCC in 13% (13/99). The PEDF expression had a significant correlation with MVD, i.e., a low MVD in 42% (5/12), a middle MVD in 11% (8/76) and a high MVD 0% (0/11) of tumors. The PEDF expression was not significantly correlated with the differentiation and invasion of TCC, but the degree of MVD was significantly higher in both high grade TCC and the pT2 tumors.

Conclusions

The degree of PEDF expression is significantly higher in normal bladder urothelium than bladder TCC; it is inversely correlated with the angiogenesis; and it is not related to the differentiation and progression of TCC. It can therefore be concluded that bladder TCC would initially occur if there is a lack of the PEDF expression.

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Association of pigment epithelium derived factor expression with cancer progression and prognosis: a meta-analysis study
Guo Cheng, Crystal Song
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Level of mitoses in non-muscle invasive papillary urothelial carcinomas (pTa and pT1) at initial bladder biopsy is a simple and powerful predictor of clinical outcome: a multi-center study in South Korea
Ji Eun Kwon, Nam Hoon Cho, Yeong-Jin Choi, So Dug Lim, Yong Mee Cho, Sun Young Jun, Sanghui Park, Young A. Kim, Sung-Sun Kim, Mi Sun Choe, Jung-dong Lee, Dae Yong Kang, Jae Y. Ro, Hyun-Jung Kim
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Eun-Kyung Kim, Hye-Jung Kim, Young-Il Yang, Jong Tae Kim, Min-Young Choi, Chang Soo Choi, Kwang-Hee Kim, Jeong-Han Lee, Won-Hee Jang, Soon-Ho Cheong
Korean Journal of Pathology.2013; 47(6): 507. CrossRef

Expression of Multidrug Resistance Protein 1 in Human Hepatocellular Carcinoma.: Yun Kyung Kang; Korean J Pathol. 2011;45(3):281-289.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.3.281

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Abstract PDF

BACKGROUND
Multidrug resistance protein 1 (MDR1) encoded by ATP-binding cassette, sub-family B (Mdr/Tap), member 1 (ABCB1) mediates cross-resistance to antineoplastic drugs, and its expression is related to tumor aggressiveness.
METHODS
MDR1 expression was investigated in 100 hepatocellular carcinomas (HCCs) by immunohistochemical staining. The epigenetic mechanisms underlying ABCB1 transcriptional regulation were investigated in cell lines.
RESULTS
MDR1 was normally localized in the bile canalicular surface of the hepatocytes. Among 100 HCCs, 45 showed canalicular/luminal (CL) staining similar to the normal pattern, another 45 displayed membranous/cytoplasmic (MC) overexpression, and the remaining 10 revealed loss of expression. MC pattern or null staining of HCCs correlated with a higher histological grade and had a poorer prognosis than HCCs with a CL pattern (p<0.05). They also tended to have a poor prognosis by multivariate survival analysis. The ABCB1 promoter was hypomethylated regardless of MDR1 expression or ABCB1 mRNA levels in 10 HCC cell lines. Histone deacetylase inhibitor treatment induced ABCB1 upregulation in 4 cell lines with low or moderate ABCB1 levels.
CONCLUSIONS
Our findings suggest that either an increase or a loss of MDR1 expression may contribute to the poor outcome of HCCs; histone deacetylation may be one of the epigenetic mechanisms directing the ABCB1 expression in HCCs.

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Safaa MM Abd El Khalek, Mona QR Mohammed, Amira M Al Balakosy
Egyptian Journal of Pathology.2023; 43(1): 66. CrossRef

Prognostic Significance of Methylation Profiles in Urothelial Carcinomas of the Bladder.: Hee Jung Park, Eui Jin Lee, Sang Yun Ha, Ghee Young Kwon, Young Lyun Oh, Kyoung Mee Kim, Dae Shick Kim, Seongil Seo, Hyun Moo Lee, Han Yong Choi; Korean J Pathol. 2010;44(6):623-630.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.6.623

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Abstract PDF

BACKGROUND
Study on epigenetics of urothelial carcinomas has expanded and allowed better understanding of their correlation with clinicopathologic features. The aim of this study was to determine reliable predictive epigenetic markers for patients with urothelial carcinoma of urinary bladder.
METHODS
In 64 urothelial carcinomas of the urinary bladder, methylationspecific polymerase chain reaction with RAS association domain family 1A (RASSF1A), adenomatous polyposis coli (APC), death-associated protein-kinase (DAPK), runt-related transcription factor 3 (RUNX3), p14, p16 and MGMT was performed and correlated the results with p53 mutations, DNA ploidy, clinicopathologic parameters and recurrences.
RESULTS
Hypermethyation of RASSF1A, APC, DAPK, RUNX3, p14, p16 and MGMT promoters was observed in 35 (54.7%), 29 (45.3%), 18 (28.1%), 18 (28.1%), 9 (14.1%), 2 (3.1%), and 6 (9.4%) cases, respectively. Hypermethylation of RUNX3 and APC was significantly associated with high histologic grades and aneuploidy. Methylation of DAPK was significantly associated with muscle invasion. Methylation of DAPK and RUNX3 genes was significantly associated with recurrence. In survival analyses, methylation of RUNX3 gene and methylation-high (methylation at two or more loci) phenotype was significantly associated with poor recurrence-free survival.
CONCLUSIONS
Methylation of RUNX3 gene and methylation-high phenotype are significant indicator of recurrence.

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DAPK Promoter Methylation and Bladder Cancer Risk: A Systematic Review and Meta-Analysis
Lihe Dai, Chong Ma, Zhensheng Zhang, Shuxiong Zeng, Anwei Liu, Shijie Tang, Qian Ren, Yinghao Sun, Chuanliang Xu, Shengtao Zhou
PLOS ONE.2016; 11(12): e0167228. CrossRef

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