Journal of Pathology and Translational Medicine

Original Articles

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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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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Beta-sheet-specific interactions with heat shock proteins define a mechanism of delayed tumor cell death in response to HAMLET
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Clinicopathologic significance and prognostic value of Ki-67 expression in patients with gastric cancer: a meta-analysis
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The cytomegalovirus protein UL138 induces apoptosis of gastric cancer cells by binding to heat shock protein 70
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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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International Journal of Molecular Sciences.2022; 23(23): 15119. CrossRef
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Frontiers in Oncology.2021;[Epub] CrossRef
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Case Report

Malignant Glomus Tumors of the Stomach: A Report of 2 Cases with Multiple Metastases.: Hyunjoo Lee, Yoon Seok Choi, Sang Cheul Oh, Jong Jae Park, Chul Whan Kim, Han Kyeom Kim, Insun Kim; Korean J Pathol. 2009;43(4):358-363.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.4.358

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Abstract PDF

Glomus tumors are mesenchymal neoplasms usually developing in the dermis or subcutis of the extremities. The majority of glomus tumors are entirely benign, and malignant glomus tumors are very rare, especially those arising in the visceral organs. Here, we are presenting two cases of malignant glomus tumor, initially diagnosed in the stomach by endoscopic biopsy. Case 1 was found in the stomach, right kidney, brain and humerus of a 65-year-old woman, and Case 2 in the stomach and liver of a 63-year-old man. Histologically, the tumor was composed of solid sheets and nests of round and short-spindle shaped tumor cells with vesicular nucleus and prominent nucleolus. The tumor cells were closely admixed with blood vessels of varying size. Immunohistochemically, the tumor cells showed diffuse and strong positive staining for smooth muscle actin and paranuclear, dot-like staining for synaptophysin, but negative for desmin, c-kit, CD34 and S-100 protein. These two are rare cases of a malignant glomus tumor with widespread metastases.

Citations

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Clinicopathologic features of gastric glomus tumor: A report of 15 cases and literature review
Minying Deng, Rongkui Luo, Jie Huang, Yuanlong Luo, Qi Song, Huaiyu Liang, Chen Xu, Wei Yuan, Yingyong Hou
Pathology and Oncology Research.2023;[Epub] CrossRef
Glomus Tumor of the Stomach: A Systematic Review and Illustrative Case Report
Andrea Pansa, Laura Samà, Laura Ruspi, Federico Sicoli, Ferdinando Carlo Maria Cananzi, Vittorio Quagliuolo
Digestive Diseases.2023; 41(1): 17. CrossRef
Locally Advanced Glomus Tumor of the Stomach With Synchronous Liver Metastases: Case Report and Literature Review
Fabio Frosio, Carmine Petruzziello, Elia Poiasina, Michele Pisano, Alessandro Lucianetti
Cureus.2023;[Epub] CrossRef
Gastric Glomus Tumor: A Clinicopathologic and Immunohistochemical Study of 21 Cases
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Malignant glomus tumor of the gastric antrum with hepatic metastases: a case report and literature review
Adina A. Bodolan, Rebecca Wilcox, Michelle X. Yang
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Original Article

Pathological Characteristics of 20 Cases of Langerhans Cell Histiocytosis and Specificity of Immunohistochemical Stain of Langerin (CD207).: Youngjoon Ryu, Hyunjoo Lee, Sangho Lee, Hoiseon Jeong, Bongkyung Shin, Aeree Kim, Hankyeom Kim, Insun Kim; Korean J Pathol. 2009;43(2):113-119.; DOI: https://doi.org/10.4132/KoreanJPathol.2009.43.2.113

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Abstract PDF

BACKGROUND
Langerhans cell histiocytosis (LCH) is a well-known neoplastic disorder of Langerhans cells which has characteristic findings, however, LCH has not been adequately studied in Korea.
METHODS
We analyzed the clinicopathologic features of 20 patients with LCH who were diagnosed between 1997 and 2006 at the Korea University Guro and Anam Hospitals.
RESULTS
The M:F ratio was 3:1 and the age ranged from 2-60 years (mean, 23.8 years [4 in 1st decade, 6 in 2nd decade, 2 in 3rd decade, 5 in 4th decade and 3> or =40 years of age). The cases were classified as unifocal unisystemic in 13 patients, multifocal unisystemic in 4 patients, and multifocal multisystemic in 3 patients. The bone was the most commonly involved organ (14), followed by lymph node (5), lung (2), skin (2) and ureter (1). The Langerhans cells were immunohistochemically stained with Langerin, CD1a, S-100 protein, and CD68. Langerin and CD1a were specific for Langerhans cells.
CONCLUSIONS
The distribution of the involved organs in patients with LCH was similar to the distribution in Western countries, but lymph node involvement was more frequent, whereas lung involvement was less common. Langerin is considered to be a specific marker for Langerhans cells.

Citations

Citations to this article as recorded by

Treatment Outcome of Langerhans Cell Histocytosis
So Hak Chung, Jae Do Kim, Hyun Ik Jo
The Journal of the Korean Bone and Joint Tumor Society.2014; 20(1): 14. CrossRef

Case Report

Micropapillary Variant of Urothelial Carcinoma of the Urinary Bladder: Report of a Case with Cytologic Diagnosis in Urine Specimen.: Young Seok Lee, Hyunjoo Lee, Jung Woo Choi, Bongkyung Shin, Hankyem Kim, Insun Kim, Aeree Kim; Korean J Cytopathol. 2006;17(1):46-50.

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Abstract PDF: A micropapillary variant of urothelial carcinoma (MPC) is a distinct entity with an aggressive clinical course. It has a micropapillary configuration resembling that of ovarian papillary serous carcinoma. Its cytologic features have rarely been reported. We report a case of MPC detected by urine cytology. A woman aged 93 years presented with a chief complaint of macroscopic hematuria. Cytology of her voided urine showed clusters of malignant cells in a micropapillary configuration. Each tumor cell had a vacuolated cytoplasm, a high nuclear:cytoplasmic ratio, and irregular hyperchromatic nuclei. An ureteroscopic examination revealed exophytic sessile papillary masses extending from the left lateral wall to the anterolateral wall of the urinary bladder. A transurethral resection of the tumor was carried out. The tumor was characterized by delicate papillae with a thin, well-developed fibrovascular stromal core and numerous secondary micropapillae lined with small cuboidal cells containing uniform low- to intermediate-grade nuclei and occasional intracytoplasmic mucinous inclusions. These tumor cells infiltrated the muscle layers of the bladder, and lymphatic tumor emboli were frequently seen. Recognizing that the presence of MPC components in urinary cytology is important for distinguishing this lesion from low-grade papillary lesions and high-grade urothelial carcinomas can result in early detection and earlier treatment for an improved treatment outcome.

Original Article

The Clinicopathological Characteristics of Gastrointestinal Neuroendocrine Tumors; An Analysis of 65 Cases.: Hyunjoo Lee, Jungwoo Choi, Jung Suk An, Hyunchul Kim, Bong Kyung Shin, Aeree Kim, Hankyeom Kim, Insun Kim; Korean J Pathol. 2007;41(3):149-157.

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Abstract PDF: Background
: This study was designed to investigate gastrointestinal neuroendocrine tumors with an emphasis on their clinicopathological characteristics.
Methods
: Sixty-five cases were reviewed and classified as typical carcinoid (TC), atypical carcinoid (AC), large cell neuroendocrine carcinoma (LCNEC) and small cell carcinoma (SmCC). We performed immunohistochemistry to characterize the expression of the immunoreactivity for synaptophysin, chromogranin, gastrin, somatostatin, thyroid transcription factor-1, p53 and Ki-67.
Results
: Most commonly, the tumors were located in the rectum (54%), followed by the stomach (23%) and colon (9%). Histologically, the tumors were classified as 49 TCs, 4 ACs, 6 LCNECs and 6 SmCCs. Most tumors were stained positive for synaptophysin and/or chromogranin. Four LCNECs and one SmCC were p53-positive. The carcinoids revealed a low level (<5%) of reactivity for Ki-67, while > or =30% of the cells showed reactivity for Ki-67 in the majority of LCNECs and SmCCs. Six patients with metastatic carcinoids were older than those patients without metastasis (64 vs 48 years, respectively, p=0.004). Furthermore, the size of tumors was larger for the patients with metastatic carcinoids than for the patients with nonmetastatic carcinoids (2.3 vs 0.5 cm, respectively, p=0.005).
Conclusion
: Old age, large tumor size and muscle invasion are associated with high grade neuroendocrine tumor and lymph node metastasis for those patients with carcinoids.

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