Journal of Pathology and Translational Medicine

Original Article

Automated immunohistochemical assessment ability to evaluate estrogen and progesterone receptor status compared with quantitative reverse transcription-polymerase chain reaction in breast carcinoma patients: Taesung Jeon, Aeree Kim, Chungyeul Kim; J Pathol Transl Med. 2021;55(1):33-42. Published online December 3, 2020; DOI: https://doi.org/10.4132/jptm.2020.09.29

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Background
This study aimed to investigate the capability of an automated immunohistochemical (IHC) evaluation of hormonal receptor status in breast cancer patients compared to a well-validated quantitative reverse transcription–polymerase chain reaction (RT-qPCR) method.
Methods
This study included 93 invasive breast carcinoma cases that had both standard IHC assay and Oncotype Dx assay results. The same paraffin blocks on which Oncotype Dx assay had been performed were selected. Estrogen receptor (ER) and progesterone receptor (PR) receptor status were evaluated through IHC stains using SP1 monoclonal antibody for ER, and 1E2 monoclonal antibody for PR. All ER and PR immunostained slides were scanned, and invasive tumor areas were marked. Using the QuantCenter image analyzer provided by 3DHISTECH, IHC staining of hormone receptors was measured and converted to histochemical scores (H scores). Pearson correlation coefficients were calculated between Oncotype Dx hormone receptor scores and H scores, and between Oncotype Dx scores and Allred scores.
Results
H scores measured by an automated imaging system showed high concordance with RT-qPCR scores. ER concordance was 98.9% (92/93), and PR concordance was 91.4% (85/93). The correlation magnitude between automated H scores and RT-qPCR scores was high and comparable to those of Allred scores (for ER, 0.51 vs. 0.37 [p=.121], for PR, 0.70 vs. 0.72 [p=.39]).
Conclusions
Automated H scores showed a high concordance with quantitative mRNA expression levels measured by RT-qPCR.

Citations

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Vision Transformers for Breast Cancer Human Epidermal Growth Factor Receptor 2 Expression Staging without Immunohistochemical Staining
Gelan Ayana, Eonjin Lee, Se-woon Choe
The American Journal of Pathology.2024; 194(3): 402. CrossRef
Marker assessments in ER‐positive breast cancers: old markers, new applications?
Joshua J X Li, Gary M Tse
Histopathology.2023; 82(2): 218. CrossRef
The Story of the Magee Equations: The Ultimate in Applied Immunohistochemistry
Rohit Bhargava, David J. Dabbs
Applied Immunohistochemistry & Molecular Morphology.2023; 31(7): 490. CrossRef
Dose-Dependent Relationship between Protection of Thioacetamide-Induced Acute Liver Injury and Hyperammonemia and Concentration of Lactobacillus salivarius Li01 in Mice
Pengcheng Lou, Yangfan Shen, Aoxiang Zhuge, Longxian Lv, Xueling Zhu, Yin Yuan, Liya Yang, Kaicen Wang, Bo Li, Lanjuan Li, Joanna B. Goldberg
Microbiology Spectrum.2021;[Epub] CrossRef

Case Study

Clear Cell Renal Cell Carcinoma with Intratumoral Granulomatous Reaction: A Case Report and Review of the Literature: Hayeon Kim, Jong Wook Kim, Aeree Kim, Hyeyoon Chang; J Pathol Transl Med. 2017;51(3):325-328. Published online March 14, 2017; DOI: https://doi.org/10.4132/jptm.2016.09.08

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Abstract PDF: Granulomatous reaction associated with clear cell renal cell carcinoma (CCRCC) is a rare finding, and only a few cases have been described in the literature. It is postulated to occur due to cancer- related antigenic factors such as cancer cells themselves or soluble tumor antigens shed into the blood. Herein, we describe a case of a 56-year-old male patient diagnosed with CCRCC with intratumoral granulomatous inflammation.

Original Articles

Detection of Human Papillomavirus in Korean Breast Cancer Patients by Real-Time Polymerase Chain Reaction and Meta-Analysis of Human Papillomavirus and Breast Cancer: Jinhyuk Choi, Chungyeul Kim, Hye Seung Lee, Yoo Jin Choi, Ha Yeon Kim, Jinhwan Lee, Hyeyoon Chang, Aeree Kim; J Pathol Transl Med. 2016;50(6):442-450. Published online October 10, 2016; DOI: https://doi.org/10.4132/jptm.2016.07.08

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Abstract PDF

Background
Human papillomavirus (HPV) is a well-established oncogenic virus of cervical, anogenital, and oropharyngeal cancer. Various subtypes of HPV have been detected in 0% to 60% of breast cancers. The roles of HPV in the carcinogenesis of breast cancer remain controversial. This study was performed to determine the prevalence of HPV-positive breast cancer in Korean patients and to evaluate the possibility of carcinogenic effect of HPV on breast.
Methods
Meta-analysis was performed in 22 case-control studies for HPV infection in breast cancer. A total of 123 breast cancers, nine intraductal papillomas and 13 nipple tissues of patients with proven cervical HPV infection were tested by real-time polymerase chain reaction to detect 28 subtypes of HPV. Breast cancers were composed of 106 formalin-fixed and paraffin embedded (FFPE) breast cancer samples and 17 touch imprint cytology samples of breast cancers.
Results
The overall odds ratio between breast cancer and HPV infection was 5.43 (95% confidence interval, 3.24 to 9.12) with I² = 34.5% in meta-analysis of published studies with case-control setting and it was statistically significant. HPV was detected in 22 cases of breast cancers (17.9%) and two cases of intaductal papillomas (22.2%). However, these cases had weak positivity.
Conclusions
These results failed to serve as significant evidence to support the relationship between HPV and breast cancer. Further study with larger epidemiologic population is merited to determine the relationship between HPV and breast cancer.

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Ikuko Kato, Jilei Zhang, Jun Sun
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G. M. Volgareva
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Erika Maldonado-Rodríguez, Marisa Hernández-Barrales, Adrián Reyes-López, Susana Godina-González, Perla I. Gallegos-Flores, Edgar L. Esparza-Ibarra, Irma E. González-Curiel, Jesús Aguayo-Rojas, Adrián López-Saucedo, Gretel Mendoza-Almanza, Jorge L. Ayala-
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Erik Kudela, Eva Kudelova, Erik Kozubík, Tomas Rokos, Terezia Pribulova, Veronika Holubekova, Kamil Biringer
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Assessment of Human Papillomavirus Infection and Risk Factors in Egyptian Women With Breast Cancer
Nabila El-Sheikh, Nahla O Mousa, Amany M Tawfeik, Alaa M Saleh, Iman Elshikh, Mohamed Deyab, Faten Ragheb, Manar M Moneer, Ahmed Kawashti, Ahmed Osman, Mohamed Elrefaei
Breast Cancer: Basic and Clinical Research.2021; 15: 117822342199627. CrossRef
Human Papillomavirus (HPV) Detection by Chromogenic In Situ Hybridization (CISH) and p16 Immunohistochemistry (IHC) in Breast Intraductal Papilloma and Breast Carcinoma
Hua Guo, Juan P. Idrovo, Jin Cao, Sudarshana Roychoudhury, Pooja Navale, Louis J. Auguste, Tawfiqul Bhuiya, Silvat Sheikh-Fayyaz
Clinical Breast Cancer.2021; 21(6): e638. CrossRef
Human Papillomavirus in Breast Carcinogenesis: A Passenger, a Cofactor, or a Causal Agent?
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Erik Kudela, Marcela Nachajova, Jan Danko
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Absence of Human Papillomavirus in Benign and Malignant Breast Tissue
Maryam Kazemi Aghdam, Seyed Alireza Nadji, Azadeh Alvandimanesh, Maliheh Khoddami, Yassaman Khademi
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Oncogenic Viruses and Breast Cancer: Mouse Mammary Tumor Virus (MMTV), Bovine Leukemia Virus (BLV), Human Papilloma Virus (HPV), and Epstein–Barr Virus (EBV)
James S. Lawson, Brian Salmons, Wendy K. Glenn
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Viral infections and breast cancer – A current perspective
O.M. Gannon, A. Antonsson, I.C. Bennett, N.A. Saunders
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Prevalence of EBV, HPV and MMTV in Pakistani breast cancer patients: A possible etiological role of viruses in breast cancer
Wasifa Naushad, Orooj Surriya, Hajra Sadia
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SIRT7, H3K18ac, and ELK4 Immunohistochemical Expression in Hepatocellular Carcinoma: Hye Seung Lee, Wonkyung Jung, Eunjung Lee, Hyeyoon Chang, Jin Hyuk Choi, Han Gyeom Kim, Aeree Kim, Baek-hui Kim; J Pathol Transl Med. 2016;50(5):337-344. Published online August 5, 2016; DOI: https://doi.org/10.4132/jptm.2016.05.20

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Abstract PDF

Background
SIRT7 is one of the histone deacetylases and is NAD-dependent. It forms a complex with ETS-like transcription factor 4 (ELK4), which deacetylates H3K18ac and works as a transcriptional suppressor. Overexpression of SIRT7 and deacetylation of H3K18ac have been shown to be associated with aggressive clinical behavior in some cancers, including hepatocellular carcinoma (HCC). The present study investigated the immunohistochemical expression of SIRT7, H3K18ac, and ELK4 in hepatocellular carcinoma.
Methods
A total of 278 HCC patients were enrolled in this study. Tissue microarray blocks were made from existing paraffin-embedded blocks. Immunohistochemical expressions of SIRT7, H3K18ac and ELK4 were scored and analyzed.
Results
High SIRT7 (p = .034), high H3K18ac (p = .001), and low ELK4 (p = .021) groups were associated with poor outcomes. Age < 65 years (p = .028), tumor size ≥ 5 cm (p = .001), presence of vascular emboli (p = .003), involvement of surgical margin (p = .001), and high American Joint Committee on Cancer stage (III&V) (p < .001) were correlated with worse prognoses. In multivariate analysis, H3K18ac (p = .001) and ELK4 (p = .015) were the significant independent prognostic factors.
Conclusions
High SIRT7 expression with poor overall survival implies that deacetylation of H3K18ac contributes to progression of HCC. High H3K18ac expression with poor prognosis is predicted due to a compensation mechanism. In addition, high ELK4 expression with good prognosis suggests another role of ELK4 as a tumor suppressor beyond SIRT7’s helper. In conclusion, we could assume that the H3K18ac deacetylation pathway is influenced by many other factors.

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Case Studies

A Case of Malignant PEComa of the Uterus Associated with Intramural Leiomyoma and Endometrial Carcinoma: Yoo Jin Choi, Jin Hwa Hong, Aeree Kim, Hankyeom Kim, Hyeyoon Chang; J Pathol Transl Med. 2016;50(6):469-473. Published online July 25, 2016; DOI: https://doi.org/10.4132/jptm.2016.04.20

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Abstract PDF

Perivascular epithelioid cell tumors (PEComas) refers to a family of mesenchymal neoplasms composed of angiomyolipomas, clear cell “sugar” tumors of the lung, and lymphangioleiomyomatoses. These tumors have a distinctive and common component of perivascular epithelioid cells that show an association with blood vessel walls and immunohistochemically display myomelanocytic differentiation. The unique neoplasms have been shown to have an expanded range through a variety of case reports, including visceral, intra-abdominal, soft tissue, and bone tumors. The retroperitoneum, abdominopelvic region, and uterus have been reported to be the most common sites. Most PEComas follow a benign course. However, reports of malignant PEComas are increasing. Many papers have described uterine PEComas, but to our knowledge, there have not yet been any reports of a malignant PEComa arising concomitant with another epithelial tumor and mesenchymal tumor. We report herein the case of a 67-year-old woman who experienced a malignant uterine PEComa infiltrating a preexisting intramural leiomyoma with synchronous well differentiated endometrial carcinoma and multiple liver and lung metastases.

Citations

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Metastasis of Clear Cell Renal Cell Carcinoma to Uterine Leiomyoma: First Case Report and Review of Literature
Sarvenaz Karamooz, Paula D. Binsol, Jaya Ruth Asirvatham, Anjali Pargaonkar
International Journal of Surgical Pathology.2024;[Epub] CrossRef
Uterine collision tumor (PEComa and endometrioid carcinoma) in a tuberous sclerosis patient: a case report
Nektarios Koufopoulos, Ioannis S. Pateras, Christos Koratzanis, Alina-Roxani Gouloumis, Argyro-Ioanna Ieronimaki, Alexandros Fotiou, Ioannis G. Panayiotides, Nikolaos Vrachnis
Frontiers in Oncology.2023;[Epub] CrossRef
TFE3-associated perivascular epithelioid cell tumor with complete response to mTOR inhibitor therapy: report of first case and literature review
Roli Purwar, Kishan Soni, Mridula Shukla, Ashish Verma, Tarun Kumar, Manoj Pandey
World Journal of Surgical Oncology.2022;[Epub] CrossRef
A case of perivascular epithelioid nodules arising in an intramural leiomyoma
Yoldez Houcine, Karima Mekni, Emna Brahem, Mouna Mlika, Aida Ayadi, Chiraz Fekih, Imene Ridene, Faouzi El Mezni
Human Pathology: Case Reports.2021; 23: 200470. CrossRef
Perivascular epithelioid cell tumors (PEComa) of the female genital tract: A challenging question for gynaecologic oncologist and pathologist
Angiolo Gadducci, Gian Franco Zannoni
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Five cases of uterine perivascular epithelioid cell tumors (PEComas) and review of literature
Weiwei Shan, Yue Shi, Qin Zhu, Bingyi Yang, Liying Xie, Bing Li, Chengcheng Ning, Qiaoying Lv, Yali Cheng, Bingying Xie, Mingzhu Bai, Yuhui Xu, Xiaojun Chen, Xuezhen Luo
Archives of Gynecology and Obstetrics.2019; 299(1): 185. CrossRef
Uterine PEComas
Jennifer A. Bennett, Ana C. Braga, Andre Pinto, Koen Van de Vijver, Kristine Cornejo, Anna Pesci, Lei Zhang, Vicente Morales-Oyarvide, Takako Kiyokawa, Gian Franco Zannoni, Joseph Carlson, Tomas Slavik, Carmen Tornos, Cristina R. Antonescu, Esther Oliva
American Journal of Surgical Pathology.2018; 42(10): 1370. CrossRef

Sclerosing Perivascular Epithelioid Cell Tumor of the Lung: A Case Report with Cytologic Findings: Ha Yeon Kim, Jin Hyuk Choi, Hye Seung Lee, Yoo Jin Choi, Aeree Kim, Han Kyeom Kim; J Pathol Transl Med. 2016;50(3):238-242. Published online April 11, 2016; DOI: https://doi.org/10.4132/jptm.2016.02.19

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Abstract PDF

Benign perivascular epithelioid cell tumor (PEComa) of the lung is a rare benign neoplasm, a sclerosing variant of which is even rarer. We present a case of 51-year-old man who was diagnosed with benign sclerosing PEComa by percutaneous fine needle aspiration cytology and biopsy. The aspirate revealed a few cell clusters composed of bland-looking polygonal or spindle cells with fine granular or clear cytoplasm. Occasional fine vessel-like structures with surrounding hyalinized materials were seen. The patient later underwent wedge resection of the lung. The histopathological study of the resected specimen revealed sheets of polygonal cells with clear vacuolated cytoplasm, variably sized thin blood vessels, and densely hyalinized stroma. In immunohistochemical studies, reactivity of tumor cells for human melanoma black 45 and Melan-A further supported the diagnosis of benign sclerosing PEComa. To the best of our knowledge, this is the first case of benign sclerosing PEComa described in lung.

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Cytopathology of rare gastric mesenchymal neoplasms: A series of 25 cases and review of literature
Carla Saoud, Peter B. Illei, Momin T. Siddiqui, Syed Z. Ali
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Liwei Jia, Vandana Panwar, Michelle Parmley, Elena Lucas, Ivan Pedrosa, Payal Kapur
International Journal of Surgical Pathology.2022; 30(1): 86. CrossRef
Perivascular epithelioid cell tumor of the lung: A case report and literature review
Shaofu Yu, Shasha Zhai, Qian Gong, Xiaoping Hu, Wenjuan Yang, Liyu Liu, Yi Kong, Lin Wu, Xingxiang Pu
Thoracic Cancer.2022; 13(17): 2542. CrossRef
Cytopathology of extra-renal perivascular epithelioid cell tumor (PEComa): a series of 7 cases and review of the literature
Sintawat Wangsiricharoen, Tatianna C. Larman, Paul E. Wakely, Momin T. Siddiqui, Syed Z. Ali
Journal of the American Society of Cytopathology.2021; 10(2): 175. CrossRef
Clear cell sugar tumour: a rare tumour of the lung
Sarah Page, Matthew S. Yong, Alka Sinha, Pankaj Saxena
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Perivascular Epithelioid Cell Tumors (PEComas) of the Orbit
Panagiotis Paliogiannis, Giuseppe Palmieri, Francesco Tanda, Antonio Cossu
Journal of Pathology and Translational Medicine.2017; 51(1): 7. CrossRef

Original Articles

Tumor Sprouting in Papillary Thyroid Carcinoma Is Correlated with Lymph Node Metastasis and Recurrence: Eunjung Lee, Wonkyung Jung, Jeong-Soo Woo, Jae Bok Lee, Bong Kyung Shin, Han Kyeom Kim, Aeree Kim, Baek-hui Kim; Korean J Pathol. 2014;48(2):117-125. Published online April 28, 2014; DOI: https://doi.org/10.4132/KoreanJPathol.2014.48.2.117

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Abstract PDF

Background

Identification of poor prognostic factors in papillary thyroid carcinoma (PTC) patients is important for the patients' care and follow-up. We can sometimes see small tumor clusters without desmoplasia and no evidence of lymphatic emboli around the main tumor mass of PTC. We termed this form of tumor clustering, 'tumor sprouting,' and determined whether these tumors correlate with lymphovascular invasion, lymph node metastasis, and recurrence.

Methods

We analyzed a total of 204 cases of papillary thyroid macrocarcinoma. Number, size and distance from the main tumor of the tumor sprouting were observed and analyzed with clinicopathologic characteristics.

Results

Tumor sprouting was observed in 101 patients. Presence of tumor sprouting was significantly associated with positive resection margin (p=.002), lymphovascular invasion (p=.001), lymph node metastasis (p<.001), and recurrence (p=.004). Univariate analysis of recurrence-free survival revealed that tumor multiplicity (p=.037), positive resection margin (p=.007), lymphovascular invasion (p=.004), lymph node metastasis (p<.001), and tumor sprouting (p=.004) were poor prognostic factors. In multivariate analysis, positive resection margin was an independent poor prognostic factor of recurrence.

Conclusions

In conclusion, tumor sprouting is significantly correlated with lymph node metastasis and recurrence. Evaluation of tumor sprouting in PTC patients could be helpful in predicting tumor recurrence or lymph node metastasis.

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Significance of Lymphovascular Invasion as a Prognostic Factor in Patients with Papillary Thyroid Cancer: a Systematic Review and Meta-Analysis
Ho-Ryun Won, Bon Seok Koo
International Journal of Thyroidology.2023; 16(2): 157. CrossRef
Peripheral Versus Intraparenchymal Papillary Thyroid Microcarcinoma: Different Morphologies and PD-L1 Expression
Bozidar Kovacevic, Dragana Vucevic, Snezana Cerovic, Catarina Eloy
Head and Neck Pathology.2022; 16(1): 200. CrossRef
Lymphovascular invasion and risk of recurrence in papillary thyroid carcinoma
Katy Wagner, Earl Abraham, Bryan Tran, David Roshan, James Wykes, Peter Campbell, Ardalan Ebrahimi
ANZ Journal of Surgery.2020; 90(9): 1727. CrossRef
The Predictors of Multicentricity in Well-Differentiated Thyroid Cancer
Mohamed Hegazi, Waleed El Nahas, Mohamed Elmetwally, Amr Hassan, Waleed Gado , Islam Abdou, Ahmed Senbel, Mohamed Samir Abou-Sheishaa
Journal of Analytical Oncology.2018; 7(4): 65. CrossRef
Prognostic impact of vascular invasion in differentiated thyroid carcinoma: a systematic review and meta-analysis
Huy Gia Vuong, Tetsuo Kondo, Uyen N P Duong, Thong Quang Pham, Naoki Oishi, Kunio Mochizuki, Tadao Nakazawa, Lewis Hassell, Ryohei Katoh
European Journal of Endocrinology.2017; 177(2): 207. CrossRef
Detection of Tumor Multifocality Is Important for Prediction of Tumor Recurrence in Papillary Thyroid Microcarcinoma: A Retrospective Study and Meta-Analysis
Jung-Soo Pyo, Jin Hee Sohn, Guhyun Kang
Journal of Pathology and Translational Medicine.2016; 50(4): 278. CrossRef

SIRT1 Expression Is Associated with Good Prognosis in Colorectal Cancer: Wonkyung Jung, Kwang Dae Hong, Woon Yong Jung, Eunjung Lee, Bong Kyung Shin, Han Kyeom Kim, Aeree Kim, Baek-hui Kim; Korean J Pathol. 2013;47(4):332-339. Published online August 26, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.4.332

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Abstract PDF

Background

Silent mating type information regulation 2 homolog 1 (SIRT1), an NAD+-dependent deacetylase, might act as a tumor promoter by inhibiting p53, but may also as a tumor suppressor by inhibiting several oncogenes such as β-catenin and survivin. Deleted in breast cancer 1 (DBC1) is known as a negative regulator of SIRT1.

Methods

Immunohistochemical expressions of SIRT1, DBC1, β-catenin, surviving, and p53 were evaluated using 2 mm tumor cores from 349 colorectal cancer patients for tissue microarray.

Results

Overexpression of SIRT1, DBC1, survivin, and p53 was seen in 235 (67%), 183 (52%), 193 (55%), and 190 (54%) patients, respectively. Altered expression of β-catenin was identified in 246 (70%) patients. On univariate analysis, overexpression of SIRT1 (p=0.029) and altered expression of β-catenin (p=0.008) were significantly associated with longer overall survival. Expression of SIRT1 was significantly related to DBC1 (p=0.001), β-catenin (p=0.001), and survivin (p=0.002), but not with p53. On multivariate analysis, age, tumor stage, differentiation, and expression of SIRT1 were independent prognostic factors significantly associated with overall survival.

Conclusions

SIRT1 overexpression is a good prognostic factor for colorectal cancer, and SIRT1 may interact with β-catenin and survivin rather than p53.

Citations

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Prognostic Significance of Heat Shock Protein 70 Expression in Early Gastric Carcinoma: Youngran Kang, Woon Yong Jung, Hyunjoo Lee, Wonkyung Jung, Eunjung Lee, Bong Kyung Shin, Aeree Kim, Han Kyeom Kim, Baek-hui Kim; Korean J Pathol. 2013;47(3):219-226. Published online June 25, 2013; DOI: https://doi.org/10.4132/KoreanJPathol.2013.47.3.219

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Abstract PDF

Background

Overexpression of heat shock protein 70 (HSP70) has been observed in many types of cancer including gastric adenocarcinomas, although the exact role of HSP70 in carcinogenesis remains unclear.

Methods

The study analyzed a total of 458 radical gastrectomy specimens which were immunohistochemically stained with HSP70, p53, and Ki-67 antibodies.

Results

The study determined that the expression of HSP70 was significantly increased in early gastric cancer (EGC) compared to advanced gastric cancer (p<0.001). The HSP70 expression was correlated with well-differentiated tumor type, intestinal type of Lauren classification and the lower pT and pN stage. Negative expression of Ki-67 and p53 expression was associated with poor prognosis. The study did not find any correlation between HSP70 and p53 expression. The study determined that HSP70 expression in the EGC subgroup was associated with a poor prognosis (p=0.009), as well as negative Ki-67 expression (p=0.006), but was not associated with p53. Based on multivariate analysis, HSP70 expression (p=0.024), negative expression of Ki-67, invasion depth and lymph node metastasis were determined to be independent prognostic markers.

Conclusions

HSP70 is expressed in the early stages of gastric adenocarcinoma. In EGC, HSP70 is a poor independent prognostic marker and is correlated with a low proliferation index.

Citations

Citations to this article as recorded by

The Prognostic Importance of Ki-67 in Gastrointestinal Carcinomas: A Meta-analysis and Multi-omics Approach
Mahdieh Razmi, Fatemeh Tajik, Farideh Hashemi, Ayna Yazdanpanah, Fatemeh Hashemi-Niasari, Adeleh Divsalar
Journal of Gastrointestinal Cancer.2024;[Epub] CrossRef
Clinicopathological significance of HSP70 expression in gastric cancer: a systematic review and meta-analysis
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Expression of SIRT1 and DBC1 in Gastric Adenocarcinoma: Youngran Kang, Woon Yong Jung, Hyunjoo Lee, Eunjung Lee, Aeree Kim, Baek-hui Kim; Korean J Pathol. 2012;46(6):523-531. Published online December 26, 2012; DOI: https://doi.org/10.4132/KoreanJPathol.2012.46.6.523

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Abstract PDF

Background

Sirtuin 1 (SIRT1) and deleted in breast cancer 1 (DBC1) are known as tumor suppressor or promoter genes. This may be due to their diverse functions and interaction with other proteins. Gastric adenocarcinoma is one of the most common malignancies, but little is known about its carcinogenesis. Therefore, we investigated the association of immunohistochemical expression of SIRT1, DBC1, p53, and β-catenin and their variable clinicopathological characteristics.

Methods

We obtained samples from 452 patients who underwent gastrectomy. Tissue microarray blocks were constructed and immonohistochemical staining was performed.

Results

Expression of DBC1 and SIRT1 was associated with lower histologic grade, intestinal type of Lauren classification, and lower pT (p<0.001) and pN stage (DBC1, p=0.002; SIRT1, p<0.001). Association between absence of lymphatic invasion, and SIRT1 (p=0.001) and DBC1 (p=0.004) was observed. Cytoplasmic β-catenin expression was associated with lower histologic grade, pT, pN, tumor-node-metastasis (TNM) stage, DBC1 (p<0.001), and SIRT1 (p=0.001). Expression of SIRT1 and DBC1 was not associated with p53 (p=0.063 and p=0.060). DBC1 was an independent good prognostic factor in multivariate analysis (p=0.012).

Conclusions

SIRC1 and DBC1 can be considered to be good prognostic factors in gastric adenocarcinoma.

Citations

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Case Reports

Primary Malignant Melanoma Arising in an Ovarian Mature Cystic Teratoma: A Case Report and Literature Review.: Sangho Lee, Ji Hoon Kim, Gyu Rak Chon, Aeree Kim, Baek Hui Kim; Korean J Pathol. 2011;45(6):659-664.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.6.659

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Abstract PDF

Ovarian primary malignant melanoma is very uncommon with only 44 reported cases in the literature. A 71-year-old woman with an ovarian mass and multiple nodules in the liver presented to our hospital. She was treated with bilateral salpingo-oophorectomy, and malignant melanoma was found in the mature cystic teratoma of the ovary. Malignant melanoma cells were also found in the ascitic fluid. She died 5 months later. Here we report a very uncommon case of malignant melanoma arising in an ovarian mature cystic teratoma with a review of the literature.

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Composite Pheochromocytoma or Paraganglioma of Adrenal Gland: A Case Report with Immunohistochemical Studies and Electron Microscopic Examination.: Hyeyoon Chang, Hoiseon Jeong, Younghye Kim, Sung Hye Park, Aeree Kim; Korean J Pathol. 2011;45(3):306-310.; DOI: https://doi.org/10.4132/KoreanJPathol.2011.45.3.306

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Abstract PDF

Composite pheochromocytoma or paraganglioma of the adrenal gland is a well-recognized, yet extremely rare tumor with only one case reported in Korea. We report a case of incidentally found composite pheochromocytoma and ganglioneuroma of the adrenal gland in a 44-year-old female composed of intermingled components of pheochromocytom, ganglioneuroma, and cells with intermediate features. On immunohistochemical staining, the pheochromocytoma component was positive for synaptophysin and chromogranin, but negative for S-100 protein. Staining for the S-100 protein revealed sustentacular cells which formed a peripheral coat around the "Zellballen" and Schwann cells. The Fontana-Masson stain defined neuromelanin granules of ganglion cells and the ganglion cells expressed neural markers such as neurofilament proteins. Ultrastructural findings revealed pheochromocytes with a round or ovoid nucleus and occasionally prominent nucleolus containing numerous adrenaline and noradrenaline granules.

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Bilateral pheochromocytoma with ganglioneuroma component associated with multiple neuroendocrine neoplasia type 2A: a case report
Boubacar Efared, Gabrielle Atsame-Ebang, Soufiane Tahirou, Khalid Mazaz, Nawal Hammas, Hinde El Fatemi, Laila Chbani
Journal of Medical Case Reports.2017;[Epub] CrossRef

Letter to the Editor

Reappraisal of 'The Korean Journal of Pathology, 2010; 44: 111-6' by Youngjoon Ryu et al. and Comments on 'The Korean Journal of Pathology, 2010; 44: 343-5' by Kyu Won Jung and Soong Deok Lee.: Youngjoon Ryu, Bongkyung Shin, Baek Hui Kim, Aeree Kim, Hankyeom Kim; Korean J Pathol. 2010;44(5):453-455.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.5.453

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Review Article

Legal and Ethical Consideration in the Use of Human Biological Material.: Youngjoon Ryu, Bongkyung Shin, Baek Hui Kim, Aeree Kim, Hankyeom Kim; Korean J Pathol. 2010;44(2):111-116.; DOI: https://doi.org/10.4132/KoreanJPathol.2010.44.2.111

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Abstract PDF

Traditionally, pathologists have used human biological material primarily for diagnostic purposes. More recently, advances in biomedical technology and changes in the research environment have placed new demands on pathologists and their handling of human materials. Moreover, these technological advances have required pathologists to be not only experts in diagnosis, but also managers of biobanks storing human biological material. Consequently, pathologists might now be confronted with unanticipated legal and ethical questions. We investigated seven examples of South Korean legislation concerning human biological material, including "The Bioethics and Safety Act" (2005), and we considered possible conflicts of interest between donors and researchers. We also reviewed international bioethical guidelines and legal precedents from several countries with special regard to pathologic glass slides, paraffin blocks, remaining specimens and other guidelines. We conclude that a better understanding of the legal and ethical questions concerning human biological material leads pathologists to safer and more conscientious management of these samples.

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Proposal for the development of a human biological material management system for research hospitals
Young-Joon Ryu, Hankyeom Kim, Sejin Jang
Journal of the Korean Medical Association.2012; 55(3): 292. CrossRef

Original Article

The EGFR Protein Expression and the Gene Copy Number Changes in Renal Cell Carcinomas.: Sangho Lee, Jungsuk An, Aeree Kim, Young Sik Kim, Insun Kim; Korean J Pathol. 2009;43(5):413-419.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.5.413

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Abstract PDF

BACKGROUND
The epidermal growth factor receptor (EGFR) is known to be involved in many tumor promoting activities. EGFR inhibition has been tried as a therapeutic modality in many human malignancies.
METHODS
The expression of EGFR protein and the gene copy number changes were studied in 135 clear cell carcinomas and 16 papillary renal cell carcinomas (RCCs), and these tumors were diagnosed between 1995 and 1997.
RESULTS
An EGFR protein expression (2+ and 3+) was found in 54.1% of the clear cell RCCs and in 43.8% of the papillary RCCs. In the clear cell RCCs, its expression was associated with male gender, the tumor size (> or =4 cm) and high T stages (T2 and T3), with statistical significance. Trisomy and polysomy of the EGFR gene were found in 27 (25.7%) and 40 (38.1%) of 105 clear cell RCCs, respectively. Trisomy and polysomy were correlated with an EGFR protein expression and a high clinical T stage, with statistical significance. Among 15 papillary RCCs, 13 tumors showed trisomy (86.7%) and one showed polysomy (6.7%). Amplification was not found in both the clear cell and papillary type RCCs.
CONCLUSIONS
A considerable numbers of RCCs showed an overexpression of EGFR protein and increased EGFR gene copy numbers, yet the clinical significance of conducting a FISH study in RCC patients seems to be limited.

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EGFR protein overexpression correlates with chromosome 7 polysomy and poor prognostic parameters in clear cell renal cell carcinoma
Gordana Đorđević, Koviljka Matušan Ilijaš, Ita Hadžisejdić, Anton Maričić, Blaženka Grahovac, Nives Jonjić
Journal of Biomedical Science.2012;[Epub] CrossRef

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