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Kwon JE, Jang Y, Yun BS, Kang S, Kim YH, Kim BG, Cho NH. MET overexpression in ovarian cancer via CD24-induced downregulation of miR-181a: A signalling for cellular quiescence-like state and chemoresistance in ovarian CSCs. Cell Prolif 2024; 57:e13582. [PMID: 38030594 PMCID: PMC11056702 DOI: 10.1111/cpr.13582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 11/15/2023] [Accepted: 11/17/2023] [Indexed: 12/01/2023] Open
Abstract
Increased expression of CD24 and MET, markers for cancer stem-like cells (CSCs), are each associated with ovarian cancer severity. However, whether CD24 and MET are co-expressed in ovarian CSCs and, if so, how they are related to CSC phenotype manifestation remains unknown. Our immunohistochemistry analysis showed that the co-expression of CD24 and MET was associated with poorer patient survival in ovarian cancer than those without. In addition, analyses using KM plotter and ROC plotter presented that the overexpression of CD24 or MET in ovarian cancer patients was associated with resistance to platinum-based chemotherapy. In our miRNA transcriptome and putative target genes analyses, miR-181a was downregulated in CD24-high ovarian cancer cells compared to CD24-low and predicted to bind to CD24 and MET 3'UTRs. In OV90 and SK-OV-3 cells, CD24 downregulated miR-181a expression by Src-mediated YY1 activation, leading to increased expression of MET. And, CD24 or MET knockdown or miR-181a overexpression inhibited the manifestation of CSC phenotypes, cellular quiescence-like state and chemoresistance, in OV90 and SK-OV-3 cells: increased colony formation, decreased G0/G1 phase cell population and increased sensitivity to Cisplatin and Carboplatin. Our findings suggest that CD24-miR-181a-MET may consist of a signalling route for ovarian CSCs, therefore being a combinatory set of markers and therapeutic targets for ovarian CSCs.
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Affiliation(s)
- Ji Eun Kwon
- Department of PathologyAjou University School of MedicineSuwonKorea
- Brain Korea 21 Plus Project for Medical ScienceYonsei University College of MedicineSeoulKorea
| | - Yeonsue Jang
- Department of PathologyYonsei University College of MedicineSeoulKorea
| | - Bo Seong Yun
- Department of Gynecology Obstetrics and Gynecology, CHA Gangnam Medical CenterCHA UniversitySeoulKorea
| | - Suki Kang
- Department of PathologyYonsei University College of MedicineSeoulKorea
| | - Yon Hee Kim
- Department of PathologySoonchunhyang University HospitalSeoulKorea
| | - Baek Gil Kim
- Brain Korea 21 Plus Project for Medical ScienceYonsei University College of MedicineSeoulKorea
- Department of PathologyYonsei University College of MedicineSeoulKorea
| | - Nam Hoon Cho
- Brain Korea 21 Plus Project for Medical ScienceYonsei University College of MedicineSeoulKorea
- Department of PathologyYonsei University College of MedicineSeoulKorea
- Severance Biomedical Science Institute (SBSI)Yonsei University College of MedicineSeoulKorea
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Kim YH, Park YJ, Baek DJ, Kwon JE, Kang HY. A novel treatment for Riehl's melanosis targeting both dermal melanin and vessels. Photodermatol Photoimmunol Photomed 2023; 39:613-619. [PMID: 37612856 DOI: 10.1111/phpp.12907] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Revised: 07/24/2023] [Accepted: 08/08/2023] [Indexed: 08/25/2023]
Abstract
BACKGROUND/PURPOSE Riehl's melanosis is a difficult-to-treat condition characterized by persisting dermal hyperpigmentation. This study aimed to evaluate the efficacy of a histology-specific targeted therapy for Riehl's melanosis. METHODS Skin biopsy samples of Riehl's melanosis were assessed to identify histology-specific targets for treatment. Subsequently, the efficacy of a combination involving a fractional picosecond laser and a pulsed dye laser (PDL) targeting the dermal melanin and vessels, respectively, was evaluated. Clinical improvement was assessed using the dermal pigmentation area and severity index (DPASI). The treatment outcomes were compared to those of a control, in this case a single laser treatment solely targeting pigmentation. RESULTS Histological and immunohistochemical analyses identified dermal melanin pigment and dilated vessels as treatment targets for Riehl's melanosis. The combined treatment of the fractional picosecond laser and PDL showed a significant reduction of the DPASI scores, which was significantly better than the control group. Patients who underwent the combined laser treatment indicated high levels of satisfaction with no adverse events except of transient erythema and oedema. CONCLUSION The combined treatment of a fractional picosecond laser and a PDL was more effective for Riehl's melanosis compared to single laser treatment. The treatment targets both dermal pigmentation and dilated vessels, offering promising results for those working to manage Riehl's melanosis.
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Affiliation(s)
- Yul Hee Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, South Korea
| | - Young Joon Park
- Department of Dermatology, Ajou University School of Medicine, Suwon, South Korea
| | - Du Jin Baek
- Department of Dermatology, Ajou University School of Medicine, Suwon, South Korea
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, Suwon, South Korea
| | - Hee Young Kang
- Department of Dermatology, Ajou University School of Medicine, Suwon, South Korea
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Kim HS, Kwon JE, Park YJ. Atezolizumab Plus Bevacizumab-induced Recalcitrant Pyoderma Gangrenosum Treated with Baricitinib: A Case Report. Acta Derm Venereol 2023; 103:adv9646. [PMID: 37526292 PMCID: PMC10413870 DOI: 10.2340/actadv.v103.9646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Accepted: 06/20/2023] [Indexed: 08/02/2023] Open
Abstract
Abstract is missing (Short communication)
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Affiliation(s)
- Han Seul Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Young Joon Park
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea.
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Jeong E, Lee KW, Lim M, Yang J, Kwon JE, Park JB. The effect of steroid pulse therapy for the reduction of acute rejection episode in subclinical borderline changes: an open-label, randomized clinical trial. Korean Journal of Transplantation 2022. [DOI: 10.4285/atw2022.f-4995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Eunsung Jeong
- Department of Surgery, Dongguk University Ilsan Hospital, Goyang, Korea
| | - Kyo Won Lee
- Department of Surgery, Samsung Medical Center, Seoul, Korea
| | - Manuel Lim
- Department of Surgery, Samsung Medical Center, Seoul, Korea
| | - Janhun Yang
- Department of Surgery, Samsung Medical Center, Seoul, Korea
| | - Ji Eun Kwon
- Department of Surgery, Samsung Medical Center, Seoul, Korea
| | - Jae Berm Park
- Department of Surgery, Samsung Medical Center, Seoul, Korea
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Han JH, Ahn MH, Jung JY, Kim JW, Suh CH, Kwon JE, Yim H, Kim HA. Publisher Correction: Elevated expression of TLR2 and its correlation with disease activity and clinical manifestations in adult-onset Still's disease. Sci Rep 2022; 12:11885. [PMID: 35831429 PMCID: PMC9279419 DOI: 10.1038/s41598-022-16346-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Jae Ho Han
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Mi-Hyun Ahn
- Department of Rheumatology, Ajou University School of Medicine, 164 Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea
| | - Ju-Yang Jung
- Department of Rheumatology, Ajou University School of Medicine, 164 Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea
| | - Ji-Won Kim
- Department of Rheumatology, Ajou University School of Medicine, 164 Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea
| | - Chang-Hee Suh
- Department of Rheumatology, Ajou University School of Medicine, 164 Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Hyunee Yim
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Hyoun-Ah Kim
- Department of Rheumatology, Ajou University School of Medicine, 164 Worldcup-ro, Yeongtong-gu, Suwon, 16499, Korea.
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Kwon JE, Yang J, Lim M, Jeong ES, Kim KD, Rhu J, Choi GS, Joh JW, Kim JM. Nivolumab after sorafenib failure in liver recipients with HCC recurrence. Int J Surg 2022. [DOI: 10.1016/j.ijsu.2022.106463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Jeong ES, Kim JM, Lim M, Yang J, Kwon JE, Choi GS, Joh JW. Laparoscopic versus open repeat liver resection for recurrent hepatocellular carcinoma in hepatectomy patients: inverse probability of treatment weighting. Updates Surg 2022; 74:527-534. [PMID: 35218476 DOI: 10.1007/s13304-022-01257-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 02/14/2022] [Indexed: 10/19/2022]
Abstract
Repeat liver resection (RLR) is a good treatment option for recurrent hepatocellular carcinoma (HCC). However, laparoscopic repeat liver resection (LRLR) is more technically demanding than open repeat liver resection (ORLR). The purpose of our study is to compare the surgical outcomes of ORLR and LRLR and to carefully present LRLR guidelines for HCC. We performed RLR at a single institution from January 2017 to November 2019. We divided the patients into an ORLR group and an LRLR group. Inverse probability of treatment weighting (IPTW) was applied in this study to compare the ORLR group and the LRLR group. There was no difference between the two groups in patient characteristics, preoperative blood tests and pathological characteristics. After stabilized IPTW, the LRLR group had a shorter hospital stay (5.52 vs. 9.27 days, p = 0.001) and superior disease-free survival (p = 0.020). LRLR yielded better short-term outcomes than ORLR. And if a regular radiologic examination is performed, most of the recurrent tumors could be detected less than 3 cm. In conclusion, LRLR might be feasible and useful for recurrent HCC located contralateral to the previous tumor at a size of less than 3 cm.
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Affiliation(s)
- Eun Sung Jeong
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Korea
| | - Jong Man Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Korea.
| | - Manuel Lim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Korea
| | - Jaehun Yang
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Korea
| | - Ji Eun Kwon
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Korea
| | - Gyu-Seong Choi
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Korea
| | - Jae-Won Joh
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, 81 Irwon-ro, Gangnam-gu, Seoul, 06351, Korea
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Kim TH, Kim JS, Kwon JE, Park B, Lee ES. Principal Component Analysis to Differentiate Patients with Palmoplantar Pustulosis from Those with Palmoplantar Pustular Psoriasis. Ann Dermatol 2022; 34:7-13. [PMID: 35221589 PMCID: PMC8831310 DOI: 10.5021/ad.2022.34.1.7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/30/2021] [Accepted: 07/01/2021] [Indexed: 11/12/2022] Open
Abstract
Background Palmoplantar pustulosis (PPP) is initiated from the acrosyringium. However, it is unclear whether PPP should be considered a distinct entity or should be classified into the spectrum of pustular psoriasis, also known as palmoplantar pustular psoriasis (PPPP). Objective We evaluated the differences in immunohistochemical staining in patients with PPP to determine whether they can be classified into two groups based on psoriatic properties or acrosyringeal properties. Methods Nineteen punch biopsy specimens diagnosed with PPP were collected. Antibodies were chosen for identifying the acrosyringeal properties of α-3-nicotine acetylcholine receptors (α-3-nAChR), psoriatic properties of interleukin (IL)-23 and IL-36R, inflammatory cell properties of human cathelicidin antimicrobial peptide 18/LL-37, IL-8, lipocalin-2 (LCN2), and CD3. The degree of staining of the epidermis was evaluated using the ordinal scale (0~3). The principal component analysis was used to derive principal components (PCs) of common variation between the stains, and the two groups were divided using PCs and cluster analysis. Results Three main PCs explained 64% of the total variance in PPP. PC1 (pustular psoriasis properties) showed a higher correlation with IL-36R. PC2 (acrosyringeal/inflammatory properties) showed a higher correlation with α-3-nAChR, IL-8, LCN2, and CD3. PC3 (psoriasis properties) showed a higher correlation with IL-23. PC1 showed a statistically significant difference (p=0.0284) between the two groups. We identified three PCs associated with the pathomechanisms of PPP. Conclusion Although PC1 showed a statistically significant difference between the two groups, we did not identify differential protein expression related to the pathogenesis between PPP and PPPP.
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Affiliation(s)
- Tae Hyung Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Ji Su Kim
- Office of Biostatistics, Medical Research Collaborating Center, Ajou Research Institute for Innovative Medicine, Ajou University Medical Center, Suwon, Korea
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Bumhee Park
- Office of Biostatistics, Medical Research Collaborating Center, Ajou Research Institute for Innovative Medicine, Ajou University Medical Center, Suwon, Korea
- Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Korea
| | - Eun-So Lee
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
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Kwon SH, Lee HR, Kwon JE, Kim YC. Prevalence of Epstein-Barr Virus in Oral Lichen Planus in Korea. Ann Dermatol 2022; 34:228-230. [PMID: 35721335 PMCID: PMC9171182 DOI: 10.5021/ad.2022.34.3.228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 09/25/2020] [Accepted: 10/31/2020] [Indexed: 12/04/2022] Open
Affiliation(s)
- Soo Hyun Kwon
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Hee Ra Lee
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - You Chan Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
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10
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Song JY, Lee KW, Kim K, Kim KD, Yang J, Kwon JE, Lee O, Park JB. Recipient efficacy and safety of kidney transplantation from older living donor: consideration for using older kidney as a solution to the shortage of organs. Korean J Transplant 2021; 35:238-246. [PMID: 35769855 PMCID: PMC9235463 DOI: 10.4285/kjt.21.0020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 09/16/2021] [Accepted: 10/20/2021] [Indexed: 11/30/2022] Open
Abstract
Background As a solution to organ shortages, studies on kidney transplantation (KT) from older donors are being conducted. However, many controversies remain about its safety and efficacy. Methods In Samsung Medical Center, from January 2000 to May 2015, 1,141 patients underwent living KT. Cases of retransplantation, recipient and donor aged younger than 18 years, and multiorgan transplantation were excluded, and a total of 859 cases were selected. Analysis was performed by dividing the patents into two groups a younger donor group (donors <60 years old; n=826) and an older donor group (donors ≥60 years old; n=33). Results There were no significant differences between the two groups in patient death (log-rank P=0.173) or in postoperative complications. The older donor group had a higher acute rejection (P=0.034; hazard ratio [HR], 1.704) and graft failure rate (P=0.029, HR=2.352). There was no significant difference in the trend of estimated glomerular filtration rate over time (P=0.189). Conclusions KT using kidneys from old-aged donors is safe, but there is room for improvement due to problems with higher acute rejection and graft failure rate.
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Affiliation(s)
- Ji Yeon Song
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyo Won Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyunga Kim
- Biomedical Statistics Center, Data Science Research Institute, Research Institute for Future Medicine, Samsung Medical Center, Seoul, Korea
- Department of Digital Health, Samsung Advanced Institute for Health Sciences and Technology, Sungkyunkwan University, Seoul, Korea
| | - Kyeong Deok Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jaehun Yang
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ji Eun Kwon
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Okjoo Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jae Berm Park
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Jeong ES, Lee KW, Park JB, Kim KD, Lim M, Yang J, Kwon JE. The effect of steroid pulse therapy for the reduction of acute rejection episode in subclinical borderline changes: an open-label, randomized clinical trial. Korean Journal of Transplantation 2021. [DOI: 10.4285/atw2021.op-1268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Eun Sung Jeong
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Kyo Won Lee
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Jae Berm Park
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Kyeong Deok Kim
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Manuel Lim
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Jaehun Yang
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Ji Eun Kwon
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
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Kim KD, Choi GS, Park S, Oh YJ, Yun SO, Lim M, Jeong ES, Kwon JE, Yang J, Rhu J, Kim JM, Joh JW. Operation tolerance after liver transplantation. Korean Journal of Transplantation 2021. [DOI: 10.4285/atw2021.po-1257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Kyeong Deok Kim
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Gyu-Seong Choi
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Sunghae Park
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Young Ju Oh
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Sang Oh Yun
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Manuel Lim
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Eun Sung Jeong
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Ji Eun Kwon
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Jaehun Yang
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Jinsoo Rhu
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Jong Man Kim
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
| | - Jae-Won Joh
- Department of Surgery-Transplantation, Samsung Medical Center, Seoul, Korea
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Kim TH, Kim JC, Kwon JE, Kim YC, Choi JW. Effect of changes in Breslow thickness between the initial punch biopsy results and final pathology reports in acral lentiginous melanoma patients. Sci Rep 2021; 11:19885. [PMID: 34615974 PMCID: PMC8494939 DOI: 10.1038/s41598-021-99422-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Accepted: 09/21/2021] [Indexed: 11/08/2022] Open
Abstract
Acral lentiginous melanoma (ALM) is the most common subtype of cutaneous melanoma among Asians; punch biopsy is widely performed for its diagnosis. However, the pathologic parameters evaluated via punch biopsy may not be sufficient for predicting disease prognosis compared to the parameters evaluated via excisional biopsy. We investigated whether changes in Breslow thickness (BT) between initial punch biopsy results and final pathology reports can affect the prognosis of ALM. Pathologic parameters were recorded from specimens acquired through the initial punch biopsy and wide excision. Patients were classified into two groups based on a change in Breslow depth: the BT increased or decreased on comparing the samples from the initial punch biopsy and final wide excision. We compared clinical characteristics, and a Cox regression model was used to identify independent prognostic factors influencing melanoma-specific death (MSD). Changes in BT did not affect MSD (hazard ratio [HR]: 0.55, P = 0.447). In multivariate analysis, a higher BT (> 2 mm) (HR: 9.93, P = 0.046) and nodal metastasis (HR: 5.66, P = 0.041) were significantly associated with an increased MSD risk. The use of punch biopsy did not affect MSD despite the inaccuracy of BT measurement as long as ALM was accurately diagnosed.
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Affiliation(s)
- Tae Hyung Kim
- Department of Dermatology, Ajou University School of Medicine, Ajou University Hospital, 164, World Cup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Suwon, 16499, South Korea
| | - Jin Cheol Kim
- Department of Dermatology, Ajou University School of Medicine, Ajou University Hospital, 164, World Cup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Suwon, 16499, South Korea
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, Suwon, South Korea
| | - You Chan Kim
- Department of Dermatology, Ajou University School of Medicine, Ajou University Hospital, 164, World Cup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Suwon, 16499, South Korea
| | - Jee Woong Choi
- Department of Dermatology, Ajou University School of Medicine, Ajou University Hospital, 164, World Cup-ro, Yeongtong-gu, Suwon-si, Gyeonggi-do, Suwon, 16499, South Korea.
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Yoon H, Lee DH, Lee JH, Kwon JE, Shin CM, Yang SJ, Park SH, Lee JH, Kang SW, Lee JS, Kim BY. Characteristics of the Gut Microbiome of Healthy Young Male Soldiers in South Korea: The Effects of Smoking. Gut Liver 2021; 15:243-252. [PMID: 32390407 PMCID: PMC7960973 DOI: 10.5009/gnl19354] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/06/2020] [Accepted: 01/17/2020] [Indexed: 12/21/2022] Open
Abstract
Background/Aims South Korean soldiers are exposed to similar environmental factors. In this study, we sought to evaluate the gut microbiome of healthy young male soldiers (HYMS) and to identify the primary factors influencing the microbiome composition. Methods We prospectively collected stool from 100 HYMS and performed next-generation sequencing of the 16S rRNA genes of fecal bacteria. Clinical data, including data relating to the diet, smoking, drinking, and exercise, were collected. Results The relative abundances of the bacterial phyla Firmicutes, Actinobacteria, Bacteroidetes, and Proteobacteria were 72.3%, 14.5%, 8.9%, and 4.0%, respectively. Fifteen species, most of which belonged to Firmicutes (87%), were detected in all examined subjects. Using cluster analysis, we found that the subjects could be divided into the two enterotypes based on the gut microbiome bacterial composition. Compared with enterotype 2 subjects, subjects classified as enterotype 1 tended to be characterized by higher frequencies of potentially harmful lifestyle habits (current smoker 55.6% vs 36.6%, p=0.222; heavy drinker 16.7% vs 3.7%, p=0.120; insufficient physical activity 27.8% vs 14.6%, p=0.318). We identified a significant difference in the microbiome compositions of current and noncurrent smokers (p=0.008); the former differed from the latter mainly in a relatively lower abundance of Bifidobacterium species and a higher abundance of Negativicutes. Conclusions A high abundance of Actinobacteria and low abundance of Bacteroidetes were the main features distinguishing the gut microbiomes of HYMS, and current smokers could be differentiated from noncurrent smokers by their lower abundance of Bifidobacterium and higher abundance of Negativicutes.
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Affiliation(s)
- Hyuk Yoon
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | - Dong Ho Lee
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | | | - Ji Eun Kwon
- Armed Forces Capital Hospital, Seongnam, Korea
| | - Cheol Min Shin
- Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Korea
| | | | - Seung-Hwan Park
- Korean Collection for Type Cultures, Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Korea
| | - Ju Huck Lee
- Korean Collection for Type Cultures, Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Korea
| | - Se Won Kang
- Korean Collection for Type Cultures, Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Korea
| | - Jung-Sook Lee
- Korean Collection for Type Cultures, Biological Resource Center, Korea Research Institute of Bioscience and Biotechnology, Jeongeup, Korea
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Shim KH, Kwon JE, Park SG, Choo SH, Kim SJ, Kim SI. Cell membrane and nuclear expression of programmed death ligand-1 in prostate needle biopsy tissue in prostate cancer patients undergoing primary radiation therapy. Urol Oncol 2021; 39:298.e13-298.e20. [PMID: 33712343 DOI: 10.1016/j.urolonc.2021.01.032] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 01/11/2021] [Accepted: 01/31/2021] [Indexed: 11/26/2022]
Abstract
BACKGROUND Programmed death ligand-1 (PD-L1) expression in cancer is often associated with cancer aggressiveness and responsiveness to treatment with PD-1 pathway inhibitors. We conducted a systematic study on the expression of membranous PD-L1 (mPD-L1) and nuclear PD-1-L1 (nPD-L1) in prostate needle biopsy specimens of prostate cancer patients who underwent primary radiotherapy and analyzed the association between PD-L1 expression and clinicopathological characteristics and prognosis of patients. METHOD A total of 971 cancer-containing prostate needle biopsy cores from 172 patients were immunohistochemically stained with anti-PD-L1 antibody. The association of PD-L1 expression with Gleason score and tumor volume percentage was evaluated for each biopsy core. Total of 171 patients were divided according to mPD-L1 or nPD-L1 expression, and clinicopathological characteristics were compared between the positive and negative groups. The prognostic significance of mPD-L1, nPD-L1 and common prognostic factors were analyzed in terms of biochemical recurrence. RESULT Total of 15% and 46% of biopsy cores were stained positive for mPD-L1 and nPD-L1, respectively. There was a positive correlation between Gleason score and mPD-L1 and a negative correlation between Gleason score and nPD-L1. Between mPD-L1 and nPD-L1, there was no significant correlation. There was intraindividual heterogeneity in PD-L1 expression among different Gleason scores. For mPD-L1, only pretreatment PSA was significantly higher in the positive group than in the negative, but not Gleason score and T stage. For nPD-L1, Gleason score and T stage were significantly higher in the positive group than in the negative. Both mPD-L1 and nPD-L1 expression were not predictive of BCR-free survival in univariate and multivariate analyses. CONCLUSIONS Our results suggest that PD-1 pathway inhibitor may be a potential therapeutic option in high risk prostate cancer patients as early as neoadjuvant setting. The novel discovery of PD-L1 expression in the nucleus of PC should be subjected to further research.
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Affiliation(s)
- Kang Hee Shim
- Department of Urology, Ajou University School of Medicine, Suwon, South Korea
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, Suwon, South Korea
| | - Sung Gon Park
- Department of Urology, Ajou University School of Medicine, Suwon, South Korea
| | - Seol Ho Choo
- Department of Urology, Ajou University School of Medicine, Suwon, South Korea
| | - Se Joong Kim
- Department of Urology, Ajou University School of Medicine, Suwon, South Korea
| | - Sun Il Kim
- Department of Urology, Ajou University School of Medicine, Suwon, South Korea.
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Lim M, Kim JM, Kwon JE, Jeong ES, Yang J, Lee O, Kim KD, Kim SJ, Rhu J, Choi GS, Joh JW. Hepatocellular Carcinoma Arising from Hepatocellular Adenoma in an Elderly Male Patient. J Liver Cancer 2021; 21:87-91. [PMID: 37384277 PMCID: PMC10035722 DOI: 10.17998/jlc.21.1.87] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 03/02/2021] [Accepted: 03/02/2021] [Indexed: 06/30/2023]
Abstract
Hepatocellular adenoma is a benign tumor of the liver occurring predominantly in young women taking oral contraceptives. The malignant transformation of hepatocellular adenoma into hepatocellular carcinoma has rarely been reported. Herein, we report the case of an elderly male patient with hepatocellular carcinoma that developed from hepatocellular adenoma. The patient's high risk for surgery and conflicting biopsy and imaging results made it difficult to determine the treatment direction. Eventually, the mass was completely removed by laparoscopic left hemi-hepatectomy without complications.
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Affiliation(s)
- Manuel Lim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jong Man Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Ji Eun Kwon
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Eun Sung Jeong
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jaehun Yang
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Okjoo Lee
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyeong Deok Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Sang Jin Kim
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jinsoo Rhu
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Gyu-Seong Choi
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Jae-Won Joh
- Department of Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Kim SK, Kim JH, Han JH, Cho NH, Kim SJ, Kim SI, Choo SH, Kim JS, Park B, Kwon JE. TERT promoter mutations in penile squamous cell carcinoma: high frequency in non-HPV-related type and association with favorable clinicopathologic features. J Cancer Res Clin Oncol 2021; 147:1125-1135. [PMID: 33635430 PMCID: PMC7954710 DOI: 10.1007/s00432-021-03514-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 01/09/2021] [Indexed: 01/14/2023]
Abstract
Purpose Penile carcinoma is a rare malignant neoplasm with a largely unknown molecular pathogenesis. Telomerase reverse transcriptase promoter (TERT-p) mutations have been detected in several types of human malignancies. The aim of this study was to investigate the presence of TERT-p mutations in penile squamous cell carcinomas (SCCs) and their associations with clinicopathologic features. Methods In this retrospective study, Sanger sequencing was performed to detect TERT-p mutations in formalin-fixed paraffin-embedded tissue samples from 37 patients with penile SCC, 16 patients with cutaneous SCC, and 4 patients with non-neoplastic penile/skin tissue. The expression of p16INK4a and Ki-67 was investigated via immunohistochemistry. Associations of TERT-p mutation with clinicopathological factors, immunohistochemical results, and clinical outcome were statistically analyzed. Results Recurrent TERT-p mutations were identified in 18 out of 37 (48.6%) penile SCCs, including all 3 carcinoma in situ cases. TERT-p mutations were significantly more frequent in non-human papilloma virus (HPV)-related penile SCC types than in non-HPV-related penile SCC based on both histologic classification and p16INK4a immunoreactivity. Furthermore, TERT-p mutation was associated with a low histologic grade, low mitotic count, absence of necrosis, low Ki-67/MIB-1 labeling index, and absence of lymph node or distant metastasis. Conclusion Our study shows TERT-p mutations are the most frequent somatic mutations in penile SCC. In addition, TERT-p mutations are far more frequent in non-HPV-related penile SCC than in HPV-related penile SCC, indicating TERT-p mutations may have a role in tumorigenesis distinct from HPV-related penile SCC. Supplementary Information The online version contains supplementary material available at 10.1007/s00432-021-03514-9.
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Affiliation(s)
- Sang Kyum Kim
- Department of Pathology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Jang-Hee Kim
- Department of Pathology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Republic of Korea
| | - Jae Ho Han
- Department of Pathology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Republic of Korea
| | - Nam Hoon Cho
- Department of Pathology, Severance Hospital, Yonsei University College of Medicine, Seoul, Republic of Korea
| | - Se Joong Kim
- Department of Urology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Sun Il Kim
- Department of Urology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Seol Ho Choo
- Department of Urology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Ji Su Kim
- Office of Biostatistics, Medical Research Collaborating Center, Ajou Research Institute for Innovation, Ajou University Medical Center, Suwon, Republic of Korea
| | - Bumhee Park
- Office of Biostatistics, Medical Research Collaborating Center, Ajou Research Institute for Innovation, Ajou University Medical Center, Suwon, Republic of Korea.,Department of Biomedical Informatics, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, 164, Worldcup-ro, Yeongtong-gu, Suwon, 16499, Republic of Korea.
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Yang HW, Choi S, Song H, Lee MJ, Kwon JE, Lee HAR, Kim K. Effect of Hyperbaric Oxygen Therapy on Acute Liver Injury and Survival in a Rat Cecal Slurry Peritonitis Model. Life (Basel) 2020; 10:life10110283. [PMID: 33203111 PMCID: PMC7696772 DOI: 10.3390/life10110283] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 11/10/2020] [Accepted: 11/12/2020] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND The effects of hyperbaric oxygen therapy (HBOT) in sepsis remain unclear. This study evaluated its effects on acute liver injury and survival in a rat model. METHODS Cecal slurry peritonitis was induced in male rats, which were then randomly allocated into the HBOT and control groups. In the survival experiment, six 90 min HBOT sessions (2.6 atmospheres absolute 100% oxygen) were performed over 48 h; the survival rate was determined 14 days after sepsis induction. In the acute liver injury experiment, three HBOT sessions were performed, followed by liver and plasma harvesting, 24 h after sepsis induction. Serum levels of alanine aminotransferase (ALT), interleukin (IL)-6, and IL-10 were measured, and the hepatic injury scores were determined. Reactive oxygen species (ROS) generation was detected by 2',7'-dihydrodichlorofluorescein diacetate (H2DCF-DA) assay. Western blot assays assessed protein kinase B (Akt), phosphorylated-Akt (p-Akt), glycogen synthase kinase (GSK)-3β, phosphorylated-GSK-3β, and cleaved caspase-3 levels. RESULTS Survival in the HBOT group (57.1%) was significantly higher than that in the controls (12.5%, p = 0.029), whereas IL-6, IL-10, and ALT levels were significantly lower in the HBOT group. The ROS generation was significantly inhibited to a greater extent in the HBOT group than in the control group. Additionally, in the HBOT group, the p-Akt and p-GSK-3β increased significantly and cleaved caspase-3 levels decreased significantly. CONCLUSIONS HBOT showed a beneficial effect on acute liver injury and rat survival by enhancing the Akt signaling pathway and decreasing apoptosis.
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Affiliation(s)
- Hee Won Yang
- Department of Emergency Medicine, Ajou University School of Medicine, Suwon 16499, Korea; (H.W.Y.); (H.S.)
| | - Sangchun Choi
- Department of Emergency Medicine, Ajou University School of Medicine, Suwon 16499, Korea; (H.W.Y.); (H.S.)
- Correspondence: (S.C.); (K.K.)
| | - Hakyoon Song
- Department of Emergency Medicine, Ajou University School of Medicine, Suwon 16499, Korea; (H.W.Y.); (H.S.)
| | - Min Ji Lee
- Department of Emergency Medicine, Seoul National University College of Medicine, Seoul 03080, Korea;
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, Suwon 16499, Korea;
| | - Han A. Reum Lee
- Department of Emergency Medicine, CHA University School of Medicine, Seongnam 13497, Korea;
| | - Kyuseok Kim
- Department of Emergency Medicine, CHA University School of Medicine, Seongnam 13497, Korea;
- Correspondence: (S.C.); (K.K.)
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Kwon JE, Park JS, Park HB, Nam KP, Seo HJ, Kim W, Lee YH, Jeon YD, Oh JH. Arthroscopic Treatment of Septic Arthritis of the Shoulder: Technical Pearls to Reduce the Rate of Reoperation. Clin Shoulder Elb 2020; 23:3-10. [PMID: 33330227 PMCID: PMC7714320 DOI: 10.5397/cise.2019.00402] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2019] [Revised: 01/19/2020] [Accepted: 01/24/2020] [Indexed: 11/25/2022] Open
Abstract
Background The aim of this study was to evaluate clinical experience with arthroscopic debridement for septic arthritis of the shoulder joint and to report on our patient outcomes. Methods The retrospective analysis included 36 shoulders (male:female, 15:21), contributed by 35 patients (mean age, 63.8 years) treated by arthroscopy for septic arthritis of the shoulder between November 2003 and February 2016. The mean follow-up period was 14.3 months (range, 12–33 months). An additional posterolateral portal and a 70º arthroscope was used to access the posteroinferior glenohumeral (GH) joint and posteroinferior subacromial (SA) space, respectively. Irrigation was performed with a large volume of fluid (25.1±8.1 L). Multiple suction drains (average, 3.3 drains) were inserted into the GH joint and SA space and removed 8.9±4.3 days after surgery. Intravenous antibiotics were administered for 3.9±1.8 weeks after surgery, followed by oral antibiotic treatment for another 3.6±1.9 weeks. Results Among the 36 shoulders, reoperation was required in two cases (5.6%). The average range of motion achieved was 150.0º for forward flexion and T9 for internal rotation. The mean simple shoulder test score was 7.9±3.6 points. Nineteen shoulders (52.8%) had acupuncture or injection history prior to the infection. Pathogens were identified in 15 shoulders, with Staphylococcus aureus being the most commonly identified pathogen (10/15). Both the GH joint and the SA space were involved in 21 shoulders, while 14 cases involved only the GH joint and one case involved only the SA space. Conclusions Complete debridement using an additional posterolateral portal and 70º arthroscope, a large volume of irrigation with >20 L of saline, and multiple suction drains may reduce the reoperation rate.
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Affiliation(s)
- Ji Eun Kwon
- Department of Orthopedic Surgery, National Police Hospital, Seoul, Korea
| | - Ji Soon Park
- Department of Orthopedic Surgery, Healthpoint Hospital, Abu Dhabi, UAE
| | - Hae Bong Park
- Department of Orthopedic Surgery, Human Bone Orthopedic Clinic, Incheon, Korea
| | - Kyung Pyo Nam
- Department of Orthopedic Surgery, Yeson Hospital, Bucheon, Korea
| | - Hyuk Jun Seo
- Department of Orthopedic Surgery, Daegu Chamtntn Hospital, Daegu, Korea
| | - Woo Kim
- Department of Orthopedic Surgery, Seoulkiwoonchan Orthopedic Clinic, Seoul, Korea
| | - Ye Hyun Lee
- Department of Orthopedic Surgery, National Police Hospital, Seoul, Korea
| | - Young Dae Jeon
- Department of Orthopedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
| | - Joo Han Oh
- Department of Orthopedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
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Kwon JE, Jang KT, Ryu Y, Kim N, Shin SH, Heo JS, Choi DW, Han IW. Subtype of intraductal papillary mucinous neoplasm of the pancreas is important to the development of metachronous high-risk lesions after pancreatectomy. Ann Hepatobiliary Pancreat Surg 2019; 23:365-371. [PMID: 31825003 PMCID: PMC6893048 DOI: 10.14701/ahbps.2019.23.4.365] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Accepted: 09/26/2019] [Indexed: 12/22/2022] Open
Abstract
Backgrounds/Aims Although intraductal papillary mucinous neoplasm (IPMN) has showed a favorable prognosis compared to pancreatic ductal adenocarcinoma, its recurrence patterns have somewhat questionable in detail. After partial pancreatectomy for IPMN, the evaluation for risk of metachronous occurrence of high-risk lesions (HRL) in the residual pancreas is important to establish a postoperative surveillance modality and duration of follow-up. This study aimed to evaluate the factors that may predict the metachronous occurrence of HRL in the remnant pancreas after surgery of the IPMN. Methods From 2005 to 2016, clinicopathologic and surveillance data for 346 consecutive patients who underwent surgical resection for IPMN were reviewed retrospectively. Histologic subtype was classified as gastric, intestinal, pancreato-biliary, or oncocytic type. Results All of IPMN were classified as main duct (n=64, 18.5%), branch duct (n=171, 49.4%), and mixed type (n=111, 32.1%). Forty-eight patients (13.9%) experienced recurrence during follow-up. Among these, 9 patients (2.6%) were identified to metachronous development of HRL in the remnant pancreas. After multivariate analysis, high-grade dysplasia (HGD) or invasive carcinoma (IC) compared to low- or intermediate dysplasia was only independent risk factor for recurrence (HR 3.688, 95% CI 2.124– 12.524, p=0.009). The independent risk factors for metachronous development were HGD/IC (HR 8.414, 95% CI 4.310– 16.426, p=0.001), and intestinal/pancreato-biliary subtype compared to gastric subtype (HR 7.874, 95% CI 3.650– 27.027, p=0.010). Conclusions Patients with high-grade dysplasia or invasive carcinoma, and with intestinal or pancreatobiliary subtype should undergo close, long-term surveillance of the remnant pancreas after initial resection.
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Affiliation(s)
- Ji Eun Kwon
- Division of Hepatobiliary-Pancreatic Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea
| | - Kee-Taek Jang
- Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea
| | - Youngju Ryu
- Division of Hepatobiliary-Pancreatic Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea
| | - Naru Kim
- Division of Hepatobiliary-Pancreatic Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea
| | - Sang Hyun Shin
- Division of Hepatobiliary-Pancreatic Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea
| | - Jin Seok Heo
- Division of Hepatobiliary-Pancreatic Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea
| | - Dong Wook Choi
- Division of Hepatobiliary-Pancreatic Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea
| | - In Woong Han
- Division of Hepatobiliary-Pancreatic Surgery, Department of Surgery, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea
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Han JH, Ahn MH, Jung JY, Suh CH, Kwon JE, Yim H, Kim HA. The levels of CXCL12 and its receptor, CXCR4, as a biomarker of disease activity and cutaneous manifestation in adult-onset Still's disease. Clin Exp Rheumatol 2019; 37 Suppl 121:67-73. [PMID: 31287410] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Accepted: 05/27/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVES This study evaluated the SDF-1/CXCL12 and soluble CXCR4 (sCXCR4) levels, and investigated their clinical relevance in adult-onset Still's disease (AOSD). METHODS Forty-two AOSD patients and 30 healthy controls (HC) were enrolled for serum sampling. Expression levels of CXCL12 and CXCR4 in skin biopsy materials of 40 AOSD patients, 10 patients with eczema, or 10 psoriasis, and 10 HC skin were evaluated with immunohistochemistry. RESULTS The serum CXCL12 levels in patients with AOSD (2,452±1,531 pg/mL) were higher than those in HC (1,708±1,322 pg/mL, p=0.017). The serum sCXCR4 levels in patients with AOSD (14,449±16,627 pg/mL) were higher than those in HC (3,046±2,554 pg/mL, p<0.001). Serum CXCL12 levels correlated positively with counts of leukocytes and neutrophils, erythrocyte sedimentation rate, ferritin, and C-reactive protein (CRP). Serum sCXCR4 levels correlated positively with systemic scores, platelet counts, and CRP levels. The serum levels of CXCL12 and sCXCR4 were decreased significantly in the patients with AOSD followed after resolution of disease activity. On immunohistochemical stain, the mean percentage of CXCR4-positive inflammatory cells was 51.4±27.5% and that of CXCL12-positive inflammatory cells was 16.7±13.3% in AOSD patients. CXCR4 was more frequently expressed in inflammatory cells from AOSD patients than in those with eczema or psoriasis and HC skin. CONCLUSIONS These results provide that sCXCR4 could be a clinical biomarker of evaluation for disease activity in AOSD, and show that CXCR4/CXCL12 may influence the inflammatory condition and skin manifestations of AOSD.
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Affiliation(s)
- Jae Ho Han
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Mi-Hyun Ahn
- Department of Rheumatology, Ajou University School of Medicine, Suwon, Korea
| | - Ju-Yang Jung
- Department of Rheumatology, Ajou University School of Medicine, Suwon, Korea
| | - Chang-Hee Suh
- Department of Rheumatology, Ajou University School of Medicine, Suwon, Korea
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Hyunee Yim
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Hyoun-Ah Kim
- Department of Rheumatology, Ajou University School of Medicine, Suwon, Korea.
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Kim HA, Kim YH, Jeon YK, Yang WI, Kwon JE, Han JH. Histopathology and expression of the chemokines CXCL10, CXCL13, and CXCR3 and the endogenous TLR-4 ligand S100A8/A9 in lymph nodes of patients with adult-onset Still's disease. Sci Rep 2019; 9:7517. [PMID: 31101882 PMCID: PMC6525255 DOI: 10.1038/s41598-019-44032-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Accepted: 05/07/2019] [Indexed: 12/03/2022] Open
Abstract
Adult-onset Still’s disease (AOSD) is a rare systemic inflammatory disease manifesting with a persistent high-spiking fever, a typical rash, and lymphadenopathy. Endogenous factors related to interleukin-1, such as S100A8/A9 and several chemokines including CXCL10, CXCR3, and CXCL13, potentially play roles in its pathogenesis. We describe the histopathological features and chemokine expression pattern in lymph nodes (LNs) of patients with AOSD. Formalin-fixed, paraffin-embedded excisional LN tissues from 48 patients with AOSD were histologically reviewed. CXCL10, CXCR3, CXCL13, and S100A8/A9 expression was evaluated immunohistochemically. The pathology of LN was characterized by paracortical hyperplasia with proliferation of histiocyte, immunoblast, CD8-positive lymphoid cell and blood vessel. Most cases required differential diagnosis from dermatopathic lymphadenitis (n = 16, 33.3%), T cell lymphoma (n = 11, 22.9%), and histiocytic necrotizing lymphadenitis (HNL) (n = 9, 18.8%). The expression levels of CXCL10 and CXCR3 were higher in patients with AOSD than in those with T cell lymphoma, HNL, tuberculous lymphadenitis, and reactive hyperplasia. It is important to recognize the aforementioned histopathologic findings of nodal involvement of AOSD because improper diagnosis and treatment can be avoided. Immunohistochemical staining for chemokines, CXCL10 and CXCR3, may aid in differentiating AOSD from other mimickers.
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Affiliation(s)
- Hyoun-Ah Kim
- Department of Rheumatology, Ajou University School of Medicine, Suwon, Korea
| | - Yon Hee Kim
- Department of Pathology, Soonchunhyang University Hospital, Seoul, Korea
| | - Yoon Kyung Jeon
- Department of Pathology, Seoul National University College of Medicine, Seoul, Korea
| | - Woo-Ick Yang
- Department of Pathology, Yonsei University College of Medicine, Seoul, Korea
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Jae Ho Han
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea.
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Ahn MH, Han JH, Chwae YJ, Jung JY, Suh CH, Kwon JE, Kim HA. Neutrophil Extracellular Traps May Contribute to the Pathogenesis in Adult-onset Still Disease. J Rheumatol 2019; 46:1560-1569. [PMID: 31043551 DOI: 10.3899/jrheum.181058] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/09/2019] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Release of neutrophil extracellular traps (NET) has been described as an effector mechanism of polymorphonuclear neutrophils in several inflammatory diseases. Thus, this study was performed to evaluate the role of NET in the pathogenesis of adult-onset Still disease (AOSD). METHODS We determined the serum levels of NET molecules and investigated their associations with clinical disease activities in patients with AOSD. Further, we analyzed the differences in the NETosis response in AOSD patients compared to healthy controls (HC). To explore the in vivo involvement of NET in AOSD, we performed immunohistochemical analysis of skin and lymph node (LN) biopsies for proteins related to NET in patients with active AOSD. RESULTS Serum levels of cell-free DNA, myeloperoxidase (MPO)-DNA complex, and α-defensin were significantly increased in patients with AOSD compared to HC. Serum levels of the NET molecules, cell-free DNA, MPO-DNA, and α-defensin were correlated with several disease activity markers for AOSD. In followup of patients with AOSD after treatment with corticosteroid, the levels of cell-free DNA and α-defensin decreased significantly. On immunohistochemistry, neutrophil elastase-positive and MPO-positive inflammatory cells were detected in skin and LN of patients with AOSD, and were expressed in fiber form in the lesions. The serum from patients with active AOSD induced NETosis in neutrophils from HC. NET molecules induced interleukin 1β production in monocytes, representing a novel mechanism in the pathogenesis of AOSD. CONCLUSION The findings presented here suggest that NET may contribute to the inflammatory response and pathogenesis in AOSD.
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Affiliation(s)
- Mi-Hyun Ahn
- From the departments of Rheumatology, Pathology, and Microbiology, Ajou University School of Medicine, Suwon, Korea.,M.H. Ahn, PhD, Department of Rheumatology, Ajou University School of Medicine; J.H. Han, MD, PhD, Department of Pathology, Ajou University School of Medicine; Y.J. Chwae, MD, PhD, Department of Microbiology, Ajou University School of Medicine; J.Y. Jung, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; C.H. Suh, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; J.E. Kwon, MD, PhD, Department of Pathology, Ajou University School of Medicine; H.A. Kim, MD, PhD, Department of Rheumatology, Ajou University School of Medicine. M.H. Ahn and J.H. Han contributed equally to this work
| | - Jae Ho Han
- From the departments of Rheumatology, Pathology, and Microbiology, Ajou University School of Medicine, Suwon, Korea.,M.H. Ahn, PhD, Department of Rheumatology, Ajou University School of Medicine; J.H. Han, MD, PhD, Department of Pathology, Ajou University School of Medicine; Y.J. Chwae, MD, PhD, Department of Microbiology, Ajou University School of Medicine; J.Y. Jung, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; C.H. Suh, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; J.E. Kwon, MD, PhD, Department of Pathology, Ajou University School of Medicine; H.A. Kim, MD, PhD, Department of Rheumatology, Ajou University School of Medicine. M.H. Ahn and J.H. Han contributed equally to this work
| | - Young-Jun Chwae
- From the departments of Rheumatology, Pathology, and Microbiology, Ajou University School of Medicine, Suwon, Korea.,M.H. Ahn, PhD, Department of Rheumatology, Ajou University School of Medicine; J.H. Han, MD, PhD, Department of Pathology, Ajou University School of Medicine; Y.J. Chwae, MD, PhD, Department of Microbiology, Ajou University School of Medicine; J.Y. Jung, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; C.H. Suh, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; J.E. Kwon, MD, PhD, Department of Pathology, Ajou University School of Medicine; H.A. Kim, MD, PhD, Department of Rheumatology, Ajou University School of Medicine. M.H. Ahn and J.H. Han contributed equally to this work
| | - Ju-Yang Jung
- From the departments of Rheumatology, Pathology, and Microbiology, Ajou University School of Medicine, Suwon, Korea.,M.H. Ahn, PhD, Department of Rheumatology, Ajou University School of Medicine; J.H. Han, MD, PhD, Department of Pathology, Ajou University School of Medicine; Y.J. Chwae, MD, PhD, Department of Microbiology, Ajou University School of Medicine; J.Y. Jung, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; C.H. Suh, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; J.E. Kwon, MD, PhD, Department of Pathology, Ajou University School of Medicine; H.A. Kim, MD, PhD, Department of Rheumatology, Ajou University School of Medicine. M.H. Ahn and J.H. Han contributed equally to this work
| | - Chang-Hee Suh
- From the departments of Rheumatology, Pathology, and Microbiology, Ajou University School of Medicine, Suwon, Korea.,M.H. Ahn, PhD, Department of Rheumatology, Ajou University School of Medicine; J.H. Han, MD, PhD, Department of Pathology, Ajou University School of Medicine; Y.J. Chwae, MD, PhD, Department of Microbiology, Ajou University School of Medicine; J.Y. Jung, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; C.H. Suh, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; J.E. Kwon, MD, PhD, Department of Pathology, Ajou University School of Medicine; H.A. Kim, MD, PhD, Department of Rheumatology, Ajou University School of Medicine. M.H. Ahn and J.H. Han contributed equally to this work
| | - Ji Eun Kwon
- From the departments of Rheumatology, Pathology, and Microbiology, Ajou University School of Medicine, Suwon, Korea.,M.H. Ahn, PhD, Department of Rheumatology, Ajou University School of Medicine; J.H. Han, MD, PhD, Department of Pathology, Ajou University School of Medicine; Y.J. Chwae, MD, PhD, Department of Microbiology, Ajou University School of Medicine; J.Y. Jung, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; C.H. Suh, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; J.E. Kwon, MD, PhD, Department of Pathology, Ajou University School of Medicine; H.A. Kim, MD, PhD, Department of Rheumatology, Ajou University School of Medicine. M.H. Ahn and J.H. Han contributed equally to this work
| | - Hyoun-Ah Kim
- From the departments of Rheumatology, Pathology, and Microbiology, Ajou University School of Medicine, Suwon, Korea. .,M.H. Ahn, PhD, Department of Rheumatology, Ajou University School of Medicine; J.H. Han, MD, PhD, Department of Pathology, Ajou University School of Medicine; Y.J. Chwae, MD, PhD, Department of Microbiology, Ajou University School of Medicine; J.Y. Jung, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; C.H. Suh, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; J.E. Kwon, MD, PhD, Department of Pathology, Ajou University School of Medicine; H.A. Kim, MD, PhD, Department of Rheumatology, Ajou University School of Medicine. M.H. Ahn and J.H. Han contributed equally to this work.
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Lim AS, Jeong HJ, Kwon JE, Lee SY, Kim JH. Gonyaulax whaseongensis sp. nov. (Gonyaulacales, Dinophyceae), a new phototrophic species from Korean coastal waters. J Phycol 2018; 54:923-928. [PMID: 30276824 DOI: 10.1111/jpy.12792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2018] [Accepted: 08/14/2018] [Indexed: 06/08/2023]
Abstract
The planktonic phototrophic dinoflagellate Gonyaulax whaseongensis sp. nov., isolated from coastal waters of western Korea, was described from living and fixed cells under light and scanning electron microscopy, and its rDNA was sequenced. Gonyaulax whaseongensis had a plate formula of 2pr, 4', 6'', 6c, 6''', 1p, and 1'''' with S-type ventral organization like the other species in the genus. However, this dinoflagellate had a narrow cingulum (ca. 2.6 μm), small displacement of the cingulum, slight overhang and steep angle between the ends of the cingulum, quadrangular sixth precingular plate, reticulated cell surface without longitudinal lines or ridges, and two unequal antapical spines, together which distinguish this from all other reported Gonyaulax species. In addition, the SSU and LSU rDNA sequences were 8%-12% and 11%-24%, respectively, different from those of Gonyaulax polygramma, Gonyaulax spinifera, Gonyaulax fragilis, Gonyaulax membranacea, and Gonyaulax digitale, the putatively closest related species in the phylogenetic analysis.
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Affiliation(s)
- An Suk Lim
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul, 08826, Korea
| | - Hae Jin Jeong
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul, 08826, Korea
- Advanced Institutes of Convergence Technology, Suwon, 16229, Korea
| | - Ji Eun Kwon
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul, 08826, Korea
| | - Sung Yeon Lee
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul, 08826, Korea
| | - Ji Hye Kim
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul, 08826, Korea
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Lee SJ, Chung KY, Kwon JE, Yoon SO, Kim SK. Expression of EpCAM in adenoid cystic carcinoma. Pathology 2018; 50:737-741. [PMID: 30389218 DOI: 10.1016/j.pathol.2018.08.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 08/20/2018] [Accepted: 08/23/2018] [Indexed: 01/14/2023]
Abstract
The mutational landscape of adenoid cystic carcinoma (ACC) is currently being revealed, but further studies are needed to identify biomarkers as therapeutic targets or prognostic factors of ACC. In this study, we investigated the expression of epithelial cell adhesion molecule (EpCAM) in ACCs. We retrospectively collected 83 cases of surgically resected ACCs. Using tissue microarray, we conducted immunohistochemical staining using the anti-EpCAM antibody. EpCAM expression was analysed by intensity score and the total immunostaining score. The positivity was 97.6% (81/83 cases), regardless of the intensity score. A higher histological grade (p = 0.006) and specific tumour location (non-salivary gland origin, p = 0.02) showed a correlation with higher EpCAM intensity. Higher EpCAM expression by total immunostaining score was associated with histological grade (p = 0.004), distant metastasis (p = 0.004) and poorer prognosis (overall survival p = 0.015 and progression-free survival p = 0.033). We suggest EpCAM as a candidate prognostic marker and a putative therapeutic target in ACC. Also, ACCs arising from salivary gland and non-salivary gland sites, respectively, might display different pathophysiologies in which EpCAM could play a role.
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Affiliation(s)
- Seok Joo Lee
- Department of Pathology, Yonsei University College of Medicine, Seoul, South Korea
| | - Kee Yang Chung
- Department of Dermatology, Yonsei University College of Medicine, Seoul, South Korea
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, Suwon, South Korea
| | - Sun Och Yoon
- Department of Pathology, Yonsei University College of Medicine, Seoul, South Korea
| | - Sang Kyum Kim
- Department of Pathology, Yonsei University College of Medicine, Seoul, South Korea.
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Kim SK, Yang JY, Han JH, Kwon JE. Metastatic Blue Nevus-Like Melanoma Detected by Liquid-Based Catheterized Urine Cytology. Ann Dermatol 2018; 30:356-360. [PMID: 29853754 PMCID: PMC5929957 DOI: 10.5021/ad.2018.30.3.356] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Revised: 08/04/2017] [Accepted: 08/09/2017] [Indexed: 11/10/2022] Open
Abstract
Primary or metastatic malignant melanoma can mimic benign blue nevus in rare cases, making the diagnosis challenging. Herein, we report an exceptionally rare case of blue nevus-like melanoma and its blue nevus-like metastasis which was detected by catheterized urine cytology. The patient presented with blue-colored papuloplaques on his temple which were diagnosed as blue nevus-like melanoma on punch biopsies. While he was admitted for administration of chemotherapy, hematuria was detected. Catheterized urine cytology revealed singly scattered oval to spindle-shaped pigmented cells with a moderate degree of variation in shape and size. Many of them had small nuclei with indiscernible to inconspicuous nucleoli while only a few cells showed nuclear enlargement and nuclear hyperchromasia, which could be diagnostic pitfalls. Most of the cells on the smear were positive for HMB45 immunostaining, which confirmed the diagnosis of metastatic blue nevus-like melanoma. To the best of our knowledge, the present case is the first report describing cytomorphologic findings of blue nevus-like metastasis of melanoma in the urine specimen.
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Affiliation(s)
- Sue Kyung Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Ji Young Yang
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Jae Ho Han
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
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Kwon JE, Jeong HJ, Kim SJ, Jang SH, Lee KH, Seong KA. Newly discovered role of the heterotrophic nanoflagellate Katablepharis japonica, a predator of toxic or harmful dinoflagellates and raphidophytes. Harmful Algae 2017; 68:224-239. [PMID: 28962983 DOI: 10.1016/j.hal.2017.08.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 08/30/2017] [Accepted: 08/30/2017] [Indexed: 06/07/2023]
Abstract
Heterotrophic nanoflagellates are ubiquitous and known to be major predators of bacteria. The feeding of free-living heterotrophic nanoflagellates on phytoplankton is poorly understood, although these two components usually co-exist. To investigate the feeding and ecological roles of major heterotrophic nanoflagellates Katablepharis spp., the feeding ability of Katablepharis japonica on bacteria and phytoplankton species and the type of the prey that K. japonica can feed on were explored. Furthermore, the growth and ingestion rates of K. japonica on the dinoflagellate Akashiwo sanguinea-a suitable algal prey item-heterotrophic bacteria, and the cyanobacteria Synechococcus sp., as a function of prey concentration were determined. Among the prey tested, K. japonica ingested heterotrophic bacteria, Synechococcus sp., the prasinophyte Pyramimonas sp., the cryptophytes Rhodomonas salina and Teleaulax sp., the raphidophytes Heterosigma akashiwo and Chattonella ovata, the dinoflagellates Heterocapsa rotundata, Amphidinium carterae, Prorocentrum donghaiense, Alexandrium minutum, Cochlodinium polykrikoides, Gymnodinium catenatum, A. sanguinea, Coolia malayensis, and the ciliate Mesodinium rubrum, however, it did not feed on the dinoflagellates Alexandrium catenella, Gambierdiscus caribaeus, Heterocapsa triquetra, Lingulodinium polyedra, Prorocentrum cordatum, P. micans, and Scrippsiella acuminata and the diatom Skeletonema costatum. Many K. japonica cells attacked and ingested a prey cell together after pecking and rupturing the surface of the prey cell and then uptaking the materials that emerged from the ruptured cell surface. Cells of A. sanguinea supported positive growth of K. japonica, but neither heterotrophic bacteria nor Synechococcus sp. supported growth. The maximum specific growth rate of K. japonica on A. sanguinea was 1.01 d-1. In addition, the maximum ingestion rate of K. japonica for A. sanguinea was 0.13ngC predator-1d-1 (0.06 cells predator-1d-1). The maximum ingestion rate of K. japonica for heterotrophic bacteria was 0.019ngC predator-1d-1 (266 bacteria predator-1d-1), and the highest ingestion rate of K. japonica for Synechococcus sp. at the given prey concentrations of up to ca. 107 cells ml-1 was 0.01ngC predator-1d-1 (48 Synechococcus predator-1d-1). The maximum daily carbon acquisition from A. sanguinea, heterotrophic bacteria, and Synechococcus sp. were 307, 43, and 22%, respectively, of the body carbon of the predator. Thus, low ingestion rates of K. japonica on heterotrophic bacteria and Synechococcus sp. may be responsible for the lack of growth. The results of the present study clearly show that K. japonica is a predator of diverse phytoplankton, including toxic or harmful algae, and may also affect the dynamics of red tides caused by these prey species.
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Affiliation(s)
- Ji Eun Kwon
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Hae Jin Jeong
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea; Advanced Institutes of Convergence Technology, Suwon, Gyeonggi-do, 16229, Republic of Korea.
| | - So Jin Kim
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Se Hyeon Jang
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyung Ha Lee
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyeong Ah Seong
- Department of Marine Biotechnology, College of Ocean Science and Technology, Kunsan National University, Kunsan 54150, Republic of Korea
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Kwon JE, Cho NH, Choi YJ, Lim SD, Cho YM, Jun SY, Park S, Kim YA, Kim SS, Choe MS, Lee JD, Kang DY, Ro JY, Kim HJ. 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. Diagn Pathol 2017; 12:54. [PMID: 28738880 PMCID: PMC5525253 DOI: 10.1186/s13000-017-0639-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 06/28/2017] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Histologic grade is the most important predictor of the clinical outcome of non-muscle invasive (Ta, T1) papillary urothelial carcinoma (NMIPUCa), but its ambiguous criteria diminish its power to predict recurrence/progression for individual patients. We attempted to find an objective and reproducible histologic predictor of NMIPUCa that correlates well with the clinical outcome. METHODS A total of 296 PUCas were collected from the Departments of Surgical Pathology of 11 institutions in South Korea. The clinical outcome was grouped into no event (NE), recurrence (R), and progression (P) categories. All 25 histological parameters were numerically redefined. The clinical pathology of each case was reviewed individually by 11 pathologists from 11 institutions based on the 2004 WHO criteria and afterwards blindly evaluated by two participants, based on our proposed parameters. Univariate and multivariate logistic regression analyses were performed using the R software package. RESULTS The level of mitoses was the most reliable parameter for predicting the clinical outcome. We propose a four-tiered grading system based on mitotic count (> 10/10 high-power fields), nuclear pleomorphism (smallest-to-largest ratio of tumor nuclei >20), presence of divergent histology, and capillary proliferation (> 20 capillary lumina per papillary core). CONCLUSIONS The level of mitoses at the initial bladder biopsy and transurethral resection (TUR) specimen appeared to be an independent predictor of the Ta PUCa outcome. Other parameters include the number of mitoses, nuclear pleomorphism, divergent histology, and capillary proliferation within the fibrovascular core. These findings may improve selection of patients for a therapeutic strategy as compared to previous grading systems.
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Affiliation(s)
- Ji Eun Kwon
- Department of Pathology, Ajou University school of Medicine, Suwon, South Korea
| | - Nam Hoon Cho
- Department of Pathology, Yonsei Medical College of Medicine, Seoul, South Korea
| | - Yeong-Jin Choi
- Department of Pathology, Seoul St Mary's Hospital, The Catholic University, Seoul, South Korea
| | - So Dug Lim
- Department of Pathology, Konkuk University Medical center, Konkuk University School of Medicine, Seoul, South Korea
| | - Yong Mee Cho
- Department of Pathology, Asan Medical Center, Ulsan College of Medicine, Seoul, South Korea
| | - Sun Young Jun
- Department of Pathology, Inchun St. Mary's Hospital, The Catholic University, Incheon, South Korea
| | - Sanghui Park
- Department of Pathology, College of Medicine, Ewha Womens University, Seoul, South Korea
| | - Young A Kim
- Department of Pathology, SMG-SNU Boramae Medical Center, Seoul, South Korea
| | - Sung-Sun Kim
- Departments of Pathology, Chonnam National University Medical school, Gwangju, South Korea
| | - Mi Sun Choe
- Department of Pathology, Keimyung University School of Medicine, Daegu, South Korea
| | - Jung-Dong Lee
- Office of Biostatistics, Ajou University, School of Medicine, Suwon, South Korea
| | - Dae Yong Kang
- Office of Biostatistics, Ajou University, School of Medicine, Suwon, South Korea
| | - Jae Y Ro
- Department of Pathology, Houston Methodist Hospital, Weill Medical College of Cornell University, New York, USA
| | - Hyun-Jung Kim
- Department of Pathology, Inje University Sanggye Paik Hospital, 1342, Dongilro, Nowon-gu, Seoul, South Korea.
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Jang SH, Jeong HJ, Kwon JE. High contents of eicosapentaenoic acid and docosahexaenoic acid in the mixotrophic dinoflagellate Paragymnodinium shiwhaense and identification of putative omega-3 biosynthetic genes. ALGAL RES 2017. [DOI: 10.1016/j.algal.2017.06.020] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Han JH, Suh CH, Jung JY, Ahn MH, Kwon JE, Yim H, Kim HA. Serum Levels of Interleukin 33 and Soluble ST2 Are Associated with the Extent of Disease Activity and Cutaneous Manifestations in Patients with Active Adult-onset Still's Disease. J Rheumatol 2017; 44:740-747. [PMID: 28365573 DOI: 10.3899/jrheum.170020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2017] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Interleukin 33 (IL-33), a member of the IL-1 family and a ligand of the orphan receptor ST2, plays key roles in innate and adaptive immunity. We examined the associations between IL-33/ST2 levels and clinical manifestations of patients with active adult-onset Still's disease (AOSD). METHODS Blood samples were collected from 40 patients with active AOSD, 28 patients with rheumatoid arthritis (RA), and 27 healthy controls (HC). The serum levels of IL-33 and soluble ST2 were determined using ELISA. Expression levels of IL-33 and ST2 in biopsy specimens obtained from 34 AOSD patients with rash were immunohistochemically investigated. RESULTS IL-33 levels of patients with AOSD were higher than those of patients with RA and HC. Soluble ST2 levels of patients with AOSD were higher than those of HC, but not of patients with RA. Serum IL-33 levels correlated with systemic score, erythrocyte sedimentation rate, ferritin levels, and aspartate transaminase levels. However, serum soluble ST2 levels correlated only with ferritin levels. The numbers of inflammatory cells expressing IL-33 and ST2 were elevated in skin lesions of patients with AOSD compared to HC, but did not differ from those of the skin lesions of eczema or psoriasis. CONCLUSION We found significantly higher serum IL-33 and soluble ST2 levels in patients with active AOSD. Results indicate that the IL-33/ST2 signaling pathway may play a role in the pathogenesis of the acute inflammation and skin manifestations associated with AOSD.
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Affiliation(s)
- Jae Ho Han
- From the Department of Pathology, and the Department of Rheumatology, Ajou University School of Medicine, Suwon, Korea.,J.H. Han, MD, PhD, Department of Pathology, Ajou University School of Medicine; C.H. Suh, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; J.Y. Jung, MD, Department of Rheumatology, Ajou University School of Medicine; M.H. Ahn, PhD, Department of Rheumatology, Ajou University School of Medicine; J.E. Kwon, MD, PhD, Department of Pathology, Ajou University School of Medicine; H. Yim, MD, PhD, Department of Pathology, Ajou University School of Medicine; H.A. Kim, MD, PhD, Department of Rheumatology, Ajou University School of Medicine
| | - Chang-Hee Suh
- From the Department of Pathology, and the Department of Rheumatology, Ajou University School of Medicine, Suwon, Korea.,J.H. Han, MD, PhD, Department of Pathology, Ajou University School of Medicine; C.H. Suh, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; J.Y. Jung, MD, Department of Rheumatology, Ajou University School of Medicine; M.H. Ahn, PhD, Department of Rheumatology, Ajou University School of Medicine; J.E. Kwon, MD, PhD, Department of Pathology, Ajou University School of Medicine; H. Yim, MD, PhD, Department of Pathology, Ajou University School of Medicine; H.A. Kim, MD, PhD, Department of Rheumatology, Ajou University School of Medicine
| | - Ju-Yang Jung
- From the Department of Pathology, and the Department of Rheumatology, Ajou University School of Medicine, Suwon, Korea.,J.H. Han, MD, PhD, Department of Pathology, Ajou University School of Medicine; C.H. Suh, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; J.Y. Jung, MD, Department of Rheumatology, Ajou University School of Medicine; M.H. Ahn, PhD, Department of Rheumatology, Ajou University School of Medicine; J.E. Kwon, MD, PhD, Department of Pathology, Ajou University School of Medicine; H. Yim, MD, PhD, Department of Pathology, Ajou University School of Medicine; H.A. Kim, MD, PhD, Department of Rheumatology, Ajou University School of Medicine
| | - Mi-Hyun Ahn
- From the Department of Pathology, and the Department of Rheumatology, Ajou University School of Medicine, Suwon, Korea.,J.H. Han, MD, PhD, Department of Pathology, Ajou University School of Medicine; C.H. Suh, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; J.Y. Jung, MD, Department of Rheumatology, Ajou University School of Medicine; M.H. Ahn, PhD, Department of Rheumatology, Ajou University School of Medicine; J.E. Kwon, MD, PhD, Department of Pathology, Ajou University School of Medicine; H. Yim, MD, PhD, Department of Pathology, Ajou University School of Medicine; H.A. Kim, MD, PhD, Department of Rheumatology, Ajou University School of Medicine
| | - Ji Eun Kwon
- From the Department of Pathology, and the Department of Rheumatology, Ajou University School of Medicine, Suwon, Korea.,J.H. Han, MD, PhD, Department of Pathology, Ajou University School of Medicine; C.H. Suh, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; J.Y. Jung, MD, Department of Rheumatology, Ajou University School of Medicine; M.H. Ahn, PhD, Department of Rheumatology, Ajou University School of Medicine; J.E. Kwon, MD, PhD, Department of Pathology, Ajou University School of Medicine; H. Yim, MD, PhD, Department of Pathology, Ajou University School of Medicine; H.A. Kim, MD, PhD, Department of Rheumatology, Ajou University School of Medicine
| | - Hyunee Yim
- From the Department of Pathology, and the Department of Rheumatology, Ajou University School of Medicine, Suwon, Korea.,J.H. Han, MD, PhD, Department of Pathology, Ajou University School of Medicine; C.H. Suh, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; J.Y. Jung, MD, Department of Rheumatology, Ajou University School of Medicine; M.H. Ahn, PhD, Department of Rheumatology, Ajou University School of Medicine; J.E. Kwon, MD, PhD, Department of Pathology, Ajou University School of Medicine; H. Yim, MD, PhD, Department of Pathology, Ajou University School of Medicine; H.A. Kim, MD, PhD, Department of Rheumatology, Ajou University School of Medicine
| | - Hyoun-Ah Kim
- From the Department of Pathology, and the Department of Rheumatology, Ajou University School of Medicine, Suwon, Korea. .,J.H. Han, MD, PhD, Department of Pathology, Ajou University School of Medicine; C.H. Suh, MD, PhD, Department of Rheumatology, Ajou University School of Medicine; J.Y. Jung, MD, Department of Rheumatology, Ajou University School of Medicine; M.H. Ahn, PhD, Department of Rheumatology, Ajou University School of Medicine; J.E. Kwon, MD, PhD, Department of Pathology, Ajou University School of Medicine; H. Yim, MD, PhD, Department of Pathology, Ajou University School of Medicine; H.A. Kim, MD, PhD, Department of Rheumatology, Ajou University School of Medicine.
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Kim JH, Jeong HJ, Lim AS, Kwon JE, Lee KH, Park KH, Kim HS. Removal of two pathogenic scuticociliates Miamiensis avidus and Miamiensis sp. using cells or culture filtrates of the dinoflagellate Alexandrium andersonii. Harmful Algae 2017; 63:133-145. [PMID: 28366388 DOI: 10.1016/j.hal.2017.02.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 02/04/2017] [Accepted: 02/04/2017] [Indexed: 06/07/2023]
Abstract
Scuticociliatosis, which is caused by parasitic protistan pathogens known as scuticociliates, is one of the most serious diseases in marine aquaculture worldwide. Thus, elimination of these ciliates is a primary concern for scientists and managers in the aquaculture industry. To date, formalin and other toxic chemicals have been used as anti-scuticociliate agents, but issues regarding their secondary effects often arise. Consequently, development of safer methods is necessary. To find out a safe method of controlling scuticociliate populations in aqua-tanks or small-scale natural environments, cultures of 14 phototrophic dinoflagellates were tested to determine whether they were able to control populations of the common scuticociliates Miamiensis avidus and Miamiensis sp. isolated from Korean waters. Among the dinoflagellates tested, both cells and culture filtrates of Alexandrium andersonii effectively killed M. avidus and Miamiensis sp. The minimal concentration of cells and equivalent culture filtrates of A. andersonii to kill all M. avidus cells within 48h of incubation was ca. 2500 and 4500 cells ml-1, respectively; whereas those needed to kill all Miamiensis sp. cells were ca. 1000 and 4500 cells ml-1, respectively. It was estimated that 1m3 of the stock culture containing 20,000A. andersonii cells ml-1 could eliminate all M. avidus cells in 7m3 of waters within the aqua-tanks on land and all Miamiensis sp. cells in 19m3 of waters within 48h. None of the brine shrimp Artemia salina nauplii incubated with concentrations of 50-4500A. andersonii cells ml-1 for 24h was dead. Furthermore, none of the flounder Paralichthys olivaceus juveniles incubated with a mean concentration of ca. 2280A. andersonii cells ml-1 for 96h was dead. Therefore, A. andersonii cultures may be used as a safe biological method for controlling populations of scuticociliates and can replace toxic formalin. The results of this study provided the basis for developing the method to control scuticociliate populations and understanding interactions between scuticociliates and phototrophic dinoflagellates in marine ecosystems.
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Affiliation(s)
- Ji Hye Kim
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Hae Jin Jeong
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea; Advanced Institutes of Convergence Technology, Suwon, Gyeonggi-do 16229, Republic of Korea.
| | - An Suk Lim
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea; Brain Korea 21 Plus, School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Ji Eun Kwon
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyung Ha Lee
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Kwan Ha Park
- Department of Aquatic Life Medicine, Kunsan National University, Jeonbuk 54150, Republic of Korea
| | - Hyung Seop Kim
- Department of Marine Biotechnology, Kunsan National University, Jeonbuk 54150, Republic of Korea
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Jeong HJ, Kim JS, Lee KH, Seong KA, Yoo YD, Kang NS, Kim TH, Song JY, Kwon JE. Differential interactions between the nematocyst-bearing mixotrophic dinoflagellate Paragymnodinium shiwhaense and common heterotrophic protists and copepods: Killer or prey. Harmful Algae 2017; 62:37-51. [PMID: 28118891 DOI: 10.1016/j.hal.2016.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 12/09/2016] [Accepted: 12/16/2016] [Indexed: 06/06/2023]
Abstract
To investigate interactions between the nematocyst-bearing mixotrophic dinoflagellate Paragymnodinium shiwhaense and different heterotrophic protist and copepod species, feeding by common heterotrophic dinoflagellates (Oxyrrhis marina and Gyrodinium dominans), naked ciliates (Strobilidium sp. approximately 35μm in cell length and Strombidinopsis sp. approximately 100μm in cell length), and calanoid copepods Acartia spp. (A. hongi and A. omorii) on P. shiwhaense was explored. In addition, the feeding activities of P. shiwhaense on these heterotrophic protists were investigated. Furthermore, the growth and ingestion rates of O. marina, G. dominans, Strobilidium sp., Strombidinopsis sp., and Acartia spp. as a function of P. shiwhaense concentration were measured. O. marina, G. dominans, and Strombidinopsis sp. were able to feed on P. shiwhaense, but Strobilidium sp. was not. However, the growth rates of O. marina, G. dominans, Strobilidium sp., and Strombidinopsis sp. feeding on P. shiwhaense were very low or negative at almost all concentrations of P. shiwhaense. P. shiwhaense frequently fed on O. marina and Strobilidium sp., but did not feed on Strombidinopsis sp. and G. dominans. G. dominans cells swelled and became dead when incubated with filtrate from the experimental bottles (G. dominans+P. shiwhaense) that had been incubated for one day. The ingestion rates of O. marina, G. dominans, and Strobilidium sp. on P. shiwhaense were almost zero at all P. shiwhaense concentrations, while those of Strombidinopsis sp. increased with prey concentration. The maximum ingestion rate of Strombidinopsis sp. on P. shiwhaense was 5.3ngC predator-1d-1 (41 cells predator-1d-1), which was much lower than ingestion rates reported in the literature for other mixotrophic dinoflagellate prey species. With increasing prey concentrations, the ingestion rates of Acartia spp. on P. shiwhaense increased up to 930ngCml-1 (7180cellsml-1) at the highest prey concentration. The highest ingestion rate of Acartia spp. on P. shiwhaense was 4240ngC predator-1d-1 (32,610 cells predator-1d-1), which is comparable to ingestion rates from previous studies on other dinoflagellate prey species calculated at similar prey concentrations. Thus, P. shiwhaense might play diverse ecological roles in marine planktonic communities by having an advantage over competing phytoplankton in anti-predation against potential protistan grazers.
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Affiliation(s)
- Hae Jin Jeong
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea; Advanced Institutes of Convergence Technology, Suwon, Gyeonggi-do, 16229, Republic of Korea.
| | - Jae Seong Kim
- Water and Eco-Bio Corporation, Kunsan National University, Kunsan 54150, Republic of Korea.
| | - Kyung Ha Lee
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyeong Ah Seong
- Department of Marine Biotechnology, Kunsan National University, Kunsan 54150, Republic of Korea
| | - Yeong Du Yoo
- Department of Marine Biotechnology, Kunsan National University, Kunsan 54150, Republic of Korea
| | - Nam Seon Kang
- Marine Biodiversity Institute of Korea, Seochun-gun, Chungchungnam-do, 33662, Republic of Korea
| | - Tae Hoon Kim
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jae Yoon Song
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Ji Eun Kwon
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
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Jang SH, Jeong HJ, Kwon JE, Lee KH. Mixotrophy in the newly described dinoflagellate Yihiella yeosuensis: A small, fast dinoflagellate predator that grows mixotrophically, but not autotrophically. Harmful Algae 2017; 62:94-103. [PMID: 28118896 DOI: 10.1016/j.hal.2016.12.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Revised: 12/24/2016] [Accepted: 12/24/2016] [Indexed: 06/06/2023]
Abstract
To investigate tropical roles of the newly described Yihiella yeosuensis (ca. 8μm in cell size), one of the smallest phototrophic dinoflagellates in marine ecosystems, its trophic mode and the types of prey species that Y. yeosuensis can feed upon were explored. Growth and ingestion rates of Y. yeosuensis on its optimal prey, Pyramimonas sp. (Prasinophyceae), as a function of prey concentration were measured. Additionally, growth and ingestion rates of Y. yeosuensis on the other edible prey, Teleaulax sp. (Cryptophyceae), were also determined for a single prey concentration at which both these rates of Y. yeosuensis on Pyramimonas sp. were saturated. Among bacteria and diverse algal prey tested, Y. yeosuensis fed only on small Pyramimonas sp. and Teleaulax sp. (both cell sizes=5.6μm). With increasing mean prey concentrations, both specific growth and ingestion rates of Y. yeosuensis increased rapidly before saturating at a mean Pyramimonas concentration of 109ngCmL-1 (2725cellsmL-1). The maximum growth rate (mixotrophic growth) of Y. yeosuensis fed with Pyramimonas sp. at 20°C under a 14:10-h light-dark cycle of 20μEm-2s-1 was 1.32d-1, whereas the growth rate of Y. yeosuensis without added prey was 0.026d-1. The maximum ingestion rate of Y. yeosuensis fed with Pyramimonas sp. was 0.37ngCpredator-1d-1 (9.3cellspredator-1d-1). At a Teleaulax concentration of 1130ngCmL-1 (66,240cellsmL-1), growth and ingestion rates of Y. yeosuensis fed with Teleaulax sp. were 1.285d-1 and 0.38ngCpredator-1d-1 (22.4cellspredator-1d-1), respectively. Thus, Y. yeosuensis rarely grows without mixotrophy, and mixotrophy supports high growth rates in Y. yeosuensis. Y. yeosuensis has the highest maximum mixotrophic growth rate with the exception of Ansanella graniferaamong engulfment feeding mixotrophic dinoflagellates. However, the high swimming speed of Y. yeosuensis (1572μms-1), almost the highest among phototrophic dinoflagellates, may prevent autotrophic growth. This evidence suggests that Y. yeosuensis may be an effective mixotrophic dinoflagellate predator on Pyramimonas and Teleaulax, and occurs abundantly during or after blooms of these two prey species.
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Affiliation(s)
- Se Hyeon Jang
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Hae Jin Jeong
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea; Advanced Institutes of Convergence Technology, Suwon, Gyeonggi-do, 16229, Republic of Korea.
| | - Ji Eun Kwon
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Kyung Ha Lee
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
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Hur H, Ham IH, Lee D, Jin H, Aguilera KY, Oh HJ, Han SU, Kwon JE, Kim YB, Ding K, Brekken RA. Discoidin domain receptor 1 activity drives an aggressive phenotype in gastric carcinoma. BMC Cancer 2017; 17:87. [PMID: 28143619 PMCID: PMC5286810 DOI: 10.1186/s12885-017-3051-9] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 01/10/2017] [Indexed: 12/22/2022] Open
Abstract
BACKGROUND Discoidin domain receptor 1 (DDR1), a receptor tyrosine kinase that utilizes collagen as a ligand, is a key molecule in the progression of solid tumors as it regulates the interaction of cancer cells with the tumor stroma. However, the clinical relevance of DDR1 expression in gastric carcinoma is yet to be investigated. Here, we assessed the role of DDR1 in mediating the aggressive phenotype of gastric carcinoma and its potential as a therapeutic target. METHODS We conducted DDR1 immunohistochemistry using a tissue microarray of 202 gastric carcinoma specimens. We examined the effect of collagen-induced activation of DDR1 on cell signaling, tumorigenesis, and cell migration in gastric cancer cell lines, and tumor growth in a xenograft animal model of gastric cancer. RESULTS Our results showed that 50.5% of gastric cancer tissues are positive for DDR1 expression, and positive DDR1 expression was significantly correlated with a poor prognosis (P = 0.015). In a subgroup analysis, DDR1 expression was prognostically meaningful only in patients receiving adjuvant treatment (P = 0.013). We also demonstrated that collagen was able to activate DDR1 and increase the clonogenicity and migration of gastric cancer cells. We observed that a DDR1 inhibitor, 7rh benzamide, suppressed tumor growth in gastric cancer xenografts. CONCLUSIONS Our findings suggest a key role for DDR1 signaling in mediating the aggressive phenotype of gastric carcinoma. Importantly, inhibition of DDR1 is an attractive strategy for gastric carcinoma therapy.
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Affiliation(s)
- Hoon Hur
- Division of Gastrointestinal Surgery, Department of Surgery, Ajou University School of Medicine, 164 Worldcup-ro, Yeongtong-gu, Suwon, 443-380, South Korea. .,Brain Korea 21 Plus Research Center for Biomedical Sciences, Ajou University, Suwon, Korea. .,Division of Surgical Oncology, Department of Surgery, Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, 6000 Harry Hines Boulevard, Dallas, TX, 75390-8593, USA.
| | - In-Hye Ham
- Division of Gastrointestinal Surgery, Department of Surgery, Ajou University School of Medicine, 164 Worldcup-ro, Yeongtong-gu, Suwon, 443-380, South Korea.,Brain Korea 21 Plus Research Center for Biomedical Sciences, Ajou University, Suwon, Korea
| | - Dakeun Lee
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Hyejin Jin
- Division of Gastrointestinal Surgery, Department of Surgery, Ajou University School of Medicine, 164 Worldcup-ro, Yeongtong-gu, Suwon, 443-380, South Korea.,Brain Korea 21 Plus Research Center for Biomedical Sciences, Ajou University, Suwon, Korea
| | - Kristina Y Aguilera
- Division of Surgical Oncology, Department of Surgery, Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, 6000 Harry Hines Boulevard, Dallas, TX, 75390-8593, USA
| | - Hye Jeong Oh
- Division of Gastrointestinal Surgery, Department of Surgery, Ajou University School of Medicine, 164 Worldcup-ro, Yeongtong-gu, Suwon, 443-380, South Korea
| | - Sang-Uk Han
- Division of Gastrointestinal Surgery, Department of Surgery, Ajou University School of Medicine, 164 Worldcup-ro, Yeongtong-gu, Suwon, 443-380, South Korea
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Young-Bae Kim
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Ke Ding
- State Key Laboratory of Respiratory Diseases, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Rolf A Brekken
- Division of Surgical Oncology, Department of Surgery, Hamon Center for Therapeutic Oncology Research, University of Texas Southwestern Medical Center, 6000 Harry Hines Boulevard, Dallas, TX, 75390-8593, USA.
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Park JY, Park JH, Kim SJ, Kwon JE, Kang HY, Lee ES, Kim YC. Two histopathological patterns of postinflammatory hyperpigmentation: epidermal and dermal. J Cutan Pathol 2016; 44:118-124. [DOI: 10.1111/cup.12849] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Revised: 10/14/2016] [Accepted: 10/16/2016] [Indexed: 11/28/2022]
Affiliation(s)
- Ji-Youn Park
- Department of Dermatology; Ajou University School of Medicine; Suwon Korea
| | - Ji-Hye Park
- Department of Dermatology; Ajou University School of Medicine; Suwon Korea
| | - Sang Jin Kim
- Department of Dermatology; Ajou University School of Medicine; Suwon Korea
| | - Ji Eun Kwon
- Department of Pathology; Ajou University School of Medicine; Suwon Korea
| | - Hee Young Kang
- Department of Dermatology; Ajou University School of Medicine; Suwon Korea
| | - Eun-So Lee
- Department of Dermatology; Ajou University School of Medicine; Suwon Korea
| | - You Chan Kim
- Department of Dermatology; Ajou University School of Medicine; Suwon Korea
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Jeong HJ, Ok JH, Lim AS, Kwon JE, Kim SJ, Lee SY. Mixotrophy in the phototrophic dinoflagellate Takayama helix (family Kareniaceae): Predator of diverse toxic and harmful dinoflagellates. Harmful Algae 2016; 60:92-106. [PMID: 28073566 DOI: 10.1016/j.hal.2016.10.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Revised: 10/28/2016] [Accepted: 10/28/2016] [Indexed: 06/06/2023]
Abstract
Takayama spp. are phototrophic dinoflagellates belonging to the family Kareniaceae and have caused fish kills in several countries. Understanding their trophic mode and interactions with co-occurring phytoplankton species are critical steps in comprehending their ecological roles in marine ecosystems, bloom dynamics, and dinoflagellate evolution. To investigate the trophic mode and interactions of Takayama spp., the ability of Takayama helix to feed on diverse algal species was examined, and the mechanisms of prey ingestion were determined. Furthermore, growth and ingestion rates of T. helix feeding on the dinoflagellates Alexandrium lusitanicum and Alexandrium tamarense, which are two optimal prey items, were determined as a function of prey concentration. T. helix ingested large dinoflagellates ≥15μm in size, except for the dinoflagellates Karenia mikimotoi, Akashiwo sanguinea, and Prorocentrum micans (i.e., it fed on Alexandrium minutum, A. lusitanicum, A. tamarense, A. pacificum, A. insuetum, Cochlodinium polykrikoides, Coolia canariensis, Coolia malayensis, Gambierdiscus caribaeus, Gymnodinium aureolum, Gymnodinium catenatum, Gymnodinium instriatum, Heterocapsa triquetra, Lingulodinium polyedrum, and Scrippsiella trochoidea). All these edible prey items are dinoflagellates that have diverse eco-physiology such as toxic and non-toxic, single and chain forming, and planktonic and benthic forms. However, T. helix did not feed on small flagellates and dinoflagellates <13μm in size (i.e., the prymnesiophyte Isochrysis galbana; the cryptophytes Teleaulax sp., Storeatula major, and Rhodomonas salina; the raphidophyte Heterosigma akashiwo; the dinoflagellates Heterocapsa rotundata, Amphidinium carterae, Prorocentrum minimum; or the small diatom Skeletonema costatum). T. helix ingested Heterocapsa triquetra by direct engulfment, but sucked materials from the rest of the edible prey species through the intercingular region of the sulcus. With increasing mean prey concentration, the specific growth rates of T. helix on A. lusitanicum and A. tamarense increased continuously before saturating at prey concentrations of 336-620ngC mL-1. The maximum specific growth rates (mixotrophic growth) of T. helix on A. lusitanicum and A. tamarense were 0.272 and 0.268d-1, respectively, at 20°C under a 14:10 h light/dark cycle of 20μE m-2 s-1 illumination, while its growth rates (phototrophic growth) under the same light conditions without added prey were 0.152 and 0.094d-1, respectively. The maximum ingestion rates of T. helix on A. lusitanicum and A. tamarense were 1.23 and 0.48ng C predator-1d-1, respectively. The results of the present study suggest that T. helix is a mixotrophic dinoflagellate that is able to feed on a diverse range of toxic species and, thus, its mixotrophic ability should be considered when studying red tide dynamics, food webs, and dinoflagellate evolution.
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Affiliation(s)
- Hae Jin Jeong
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea; Advanced Institutes of Convergence Technology, Suwon, Gyeonggi-do, 16229, Republic of Korea.
| | - Jin Hee Ok
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - An Suk Lim
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea; Brain Korea 21, School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea.
| | - Ji Eun Kwon
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - So Jin Kim
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Sung Yeon Lee
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
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Park S, Kang SY, Kwon GY, Kwon JE, Kim SK, Kim JY, Kim CH, Kim HJ, Moon KC, Pyo JY, Park WY, Park ES, Sung JY, Sung SH, Oh YH, Lee SE, Lee W, Lee JI, Cho NH, Jung SJ, Cho MS, Cho YM, Cho HY, Cha EJ, Chae YS, Choe G, Choi YJ, Huh J, Ro JY. Clinicopathologic Characteristics and Mutational Status of Succinate Dehydrogenase Genes in Paraganglioma of the Urinary Bladder: A Multi-Institutional Korean Study. Arch Pathol Lab Med 2016; 141:671-677. [DOI: 10.5858/arpa.2016-0403-oa] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Context.—
Because of the limited number of available primary bladder paraganglioma (PBPG) cases, the rates of succinate dehydrogenase (SDH) mutations and the clinicopathologic characteristics of SDH-deficient tumors have not been fully studied.
Objective.—
To define the clinicopathologic and molecular characteristics of PBPGs.
Design.—
A total of 52 PBPGs were collected retrospectively. SDHA and SDHB immunohistochemical stains were performed. In cases of SDHB expression loss, mutation analyses of SDHB, SDHC, and SDHD were performed.
Results.—
The clinicopathologic features were analyzed for 52 cases (M:F = 27:25), with a mean age of 56 years (range, 22–79 years). Tumor sizes were 0.5 to 8 cm (mean, 2.4 cm). Tumor necrosis was present in 5 of 52 cases (10%), involvement of muscularis propria in 41 (79%), and lymphovascular tumor invasion in 6 (12%). During a mean follow-up period of 41 months (range, 1–161 months), 3 of 52 patients (6%) developed metastases, but no one died from the disease. Immunohistochemistry for SDHA and SDHB showed that all cases were SDHA intact. Among them, 43 cases had intact SDHB, whereas 9 cases were SDHB deficient. Compared with the SDHB-intact cases, the SDHB-deficient cases were characterized by large tumor sizes (4.5 versus 1.9 cm; P < .001), a higher number of mitoses per 10 high-powered fields (2.6 versus 0.1; P = .002), and frequent lymphovascular tumor invasion (33% versus 7%; P = .02) and metastases (22% versus 2%; P = .02). Mutational analyses for SDHB, SDHC, and SDHD were performed in 9 SDHB-deficient cases. Among them, 6 cases were successfully sequenced and revealed SDHB mutations only.
Conclusions.—
Large tumor size, a higher number of mitoses, and the presence of lymphovascular tumor invasion and SDHB mutations suggest malignant paraganglioma.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Jae Y. Ro
- From the Department of Pathology, Ewha Womans University School of Medicine, Seoul, Korea (Drs S. Park, S.H. Sung, and M.S. Cho); the Department of Pathology and Translational Genomics, Samsung Medical Center, Sungkyunkwan University College of Medicine, Seoul, Korea (Drs Kang and G.Y. Kwon); the Department of Pathology, Ajou University School of Medicine, Suwon, Korea (Dr J.E. Kwon); the Departm
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Lee KH, Jeong HJ, Kwon JE, Kang HC, Kim JH, Jang SH, Park JY, Yoon EY, Kim JS. Mixotrophic ability of the phototrophic dinoflagellates Alexandrium andersonii, A. affine, and A. fraterculus. Harmful Algae 2016; 59:67-81. [PMID: 28073508 DOI: 10.1016/j.hal.2016.09.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 09/28/2016] [Accepted: 09/28/2016] [Indexed: 06/06/2023]
Abstract
The dinoflagellate Alexandrium spp. have received much attention due to their harmful effects on diverse marine organisms, including commercially important species. For minimizing loss due to red tides or blooms of Alexandrium spp., it is very important to understand the eco-physiology of each Alexandrium species and to predict its population dynamics. Its trophic mode (i.e., exclusively autotrophic or mixotrophic) is one of the most critical parameters in establishing prediction models. However, among the 35 Alexandrium species so far described, only six Alexandrium species have been revealed to be mixotrophic. Thus, mixotrophic ability of the other Alexandrium species should be explored. In the present study, whether each of three Alexandrium species (A. andersonii, A. affine, and A. fraterculus) isolated from Korean waters has or lacks mixotrophic ability, was investigated. When diets of diverse algal prey, cyanobacteria, and bacteria sized micro-beads were provided, A. andersonii was able to feed on the prasinophyte Pyramimonas sp., the cryptophyte Teleaulax sp., and the dinoflagellate Heterocapsa rotundata, whereas neither A. affine nor A. fraterculus fed on any prey item. Moreover, mixotrophy elevated the growth rate of A. andersonii. The maximum mixotrophic growth rates of A. andersonii on Pyramimonas sp. under a 14:10h light/dark cycle of 20μEm-2s-1 was 0.432d-1, while the autotrophic growth rate was 0.243d-1. With increasing mean prey concentration, the ingestion rate of A. andersonii increased rapidly at prey concentrations <650ngCml-1 (ca. 16,240 cellsml-1), but became saturated at the higher prey concentrations. The maximum ingestion rate by A. andersonii of Pyramimonas sp. was 1.03ngC predator-1d-1 (25.6 cells predator-1d-1). This evidence suggests that the mixotrophic ability of A. andersonii should be taken into consideration in predicting the outbreak, persistence, and decline of its harmful algal blooms.
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Affiliation(s)
- Kyung Ha Lee
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Hae Jin Jeong
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea; Advanced Institutes of Convergence Technology, Suwon, Gyeonggi-do 16229, Republic of Korea.
| | - Ji Eun Kwon
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Hee Chang Kang
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Ji Hye Kim
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Se Hyeon Jang
- School of Earth and Environmental Sciences, College of Natural Sciences, Seoul National University, Seoul 08826, Republic of Korea
| | - Jae Yeon Park
- Advanced Institutes of Convergence Technology, Suwon, Gyeonggi-do 16229, Republic of Korea
| | - Eun Young Yoon
- Advanced Institutes of Convergence Technology, Suwon, Gyeonggi-do 16229, Republic of Korea
| | - Jae Seong Kim
- Water and Eco-Bio Corporation, Kunsan National University, Kunsan 54150, Republic of Korea
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Kwon JE, Lee JW, Im JP, Kim JW, Kim SH, Koh SJ, Kim BG, Lee KL, Kim SG, Kim JS, Jung HC. Comparable Efficacy of a 1-L PEG and Ascorbic Acid Solution Administered with Bisacodyl versus a 2-L PEG and Ascorbic Acid Solution for Colonoscopy Preparation: A Prospective, Randomized and Investigator-Blinded Trial. PLoS One 2016; 11:e0162051. [PMID: 27588943 PMCID: PMC5010253 DOI: 10.1371/journal.pone.0162051] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Accepted: 08/15/2016] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Two liters of polyethylene glycol (PEG) solution administered with ascorbic acid (Asc) can provide efficacy similar to that of a 4-L PEG solution for colonoscopy preparation. In addition, oral bisacodyl (Bis) has been shown to reduce the volume of PEG needed for a bowel preparation with comparable efficacy. This study aimed to compare the efficacy, tolerability and safety of a 2-L PEG solution mixed with Asc versus the combination of Bis, Asc and a 1-L PEG solution. METHODS This was a prospective, randomized, multi-centre, single-blind, non-inferiority trial. Participants who were scheduled for colonoscopy were included and randomized to receive either 2-L PEG and Asc (2L PEG/Asc group) or 1-L PEG, Asc and 20 mg Bis (1L PEG/Asc + Bis group). The quality of bowel preparation was assessed using the Boston Bowel Preparation Scale. Data regarding tolerance, compliance and adverse events were also gathered. RESULTS A total of 187 participants were analyzed; 96 were allocated to the 2L PEG/Asc group and 91 to the 1L PEG/Asc + Bis group. Bowel preparation was adequate in 87.5% (84/96) of patients in the 2L PEG/Asc group and 94.5% of the 1L PEG/Asc + Bis group (86/91, p = 0.10). There was no significant difference between the two groups with respect to compliance, tolerability or safety. The patients allocated to the 1L PEG/Asc + Bis group expressed more willingness to repeat the procedure than patients in the 2L PEG/Asc group (p = 0.01). CONCLUSIONS Bowel preparation with Bis and a 1-L PEG/Asc solution is as effective, well-tolerated, and safe as a 2-L PEG/Asc solution. TRIAL REGISTRATION ClinicalTrials.gov NCT 01745835; Clinical Research Information Service (CRiS) KCT0000708.
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Affiliation(s)
- Ji Eun Kwon
- Department of Internal Medicine, The Armed Forces Capital Hospital, Bundang, Korea
| | - Jung Won Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Jong Pil Im
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Ji Won Kim
- Department of Internal Medicine, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Korea
- * E-mail:
| | - Su Hwan Kim
- Department of Internal Medicine, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Seong-Joon Koh
- Department of Internal Medicine, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Byeong Gwan Kim
- Department of Internal Medicine, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Kook Lae Lee
- Department of Internal Medicine, Seoul National University Boramae Hospital, Seoul National University College of Medicine, Seoul, Korea
| | - Sang Gyun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Joo Sung Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Hyun Chae Jung
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Park JH, Park YJ, Kim SK, Kwon JE, Kang HY, Lee ES, Choi JH, Kim YC. Histopathological Differential Diagnosis of Psoriasis and Seborrheic Dermatitis of the Scalp. Ann Dermatol 2016; 28:427-32. [PMID: 27489423 PMCID: PMC4969470 DOI: 10.5021/ad.2016.28.4.427] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 08/25/2015] [Accepted: 09/04/2015] [Indexed: 11/08/2022] Open
Abstract
BACKGROUND The differential diagnosis of psoriasis and seborrheic dermatitis can be difficult when both conditions are localized to the scalp without the involvement of other skin sites. OBJECTIVE We aimed to evaluate the histopathological differences between psoriasis and seborrheic dermatitis on the scalp and identify favorable criteria for their differential diagnosis. METHODS We evaluated 15 cases of psoriasis and 20 cases of seborrheic dermatitis of the scalp that had been clinicopathologically diagnosed. Skin biopsy sections stained with H&E were examined. Additional immunohistochemistry was performed, including Ki-67, keratin 10, caspase-5, and GLUT-1. RESULTS On histopathological examination, mounds of parakeratosis with neutrophils, spongiform micropustules of Kogoj, and clubbed and evenly elongated rete ridges were significantly more frequently observed in psoriasis. Follicular plugging, shoulder parakeratosis and prominent lymphocytic exocytosis were significantly more common in seborrheic dermatitis. Moreover, significantly higher mitotic figures were observed in psoriatic lesions than in seborrheic dermatitis. Immunohistochemistry did not show any difference between psoriasis and seborrheic dermatitis. CONCLUSION Histopathological features favoring psoriasis include mounds of parakeratosis with neutrophils, spongiform micropustules of Kogoj, clubbed and evenly elongated rete ridges, and increased mitotic figures (≥6/high-powered field). Features indicating seborrheic dermatitis are follicular plugging, shoulder parakeratosis and prominent lymphocytic exocytosis. Immunohistochemistry was not helpful in differentiating psoriasis from seborrheic dermatitis.
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Affiliation(s)
- Ji-Hye Park
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Young Joon Park
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Sue Kyoung Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Ji Eun Kwon
- Department of Pathology, Ajou University School of Medicine, Suwon, Korea
| | - Hee Young Kang
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Eun-So Lee
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
| | - Jee Ho Choi
- Department of Dermatology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - You Chan Kim
- Department of Dermatology, Ajou University School of Medicine, Suwon, Korea
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Abstract
BACKGROUND Biodegradable anchors may lead to perianchor cyst formation or osteolysis. A new generation of anchors containing osteoconductive material was recently presented, but there is currently no solid evidence that this concept decreases cyst formation around anchors. HYPOTHESIS The null hypothesis was that the prevalence and severity of cyst formation around anchors would be similar for all 3 anchor types. STUDY DESIGN Cohort study; Level of evidence, 2. METHODS To evaluate differences between anchor behaviors postoperatively, this study included 2 groups of patients who underwent rotator cuff repair. In group 1 (n = 38), transosseous-equivalent rotator cuff repair was performed in all patients. At the time of repair, 2 different anchors (anchor A: 23% microstructured β-tricalcium phosphate plus 77% polylactic acid enantiomers [PLLA]; and anchor B: 30% hydroxyapatite plus 70% PLLA) were used for medial-row repair. Insertion locations (anterior or posterior) were randomly assigned. In group 2 (n = 38), the same procedure was performed; however, 1 of the anchors used in group 1 was changed (anchor A: as above; and anchor C: 30% β-tricalcium phosphate plus 70% faster absorbing polylactic-co-glycolic acid copolymer [85% PLLA plus 15% polyglycolic acid]). The presence and severity of fluid collection around the anchors was evaluated by magnetic resonance imaging at approximately 1 year after rotator cuff repair (12.7 ± 0.9 months for group 1 and 12.6 ± 1.8 months for group 2). RESULTS In group 1, a fluid signal was observed in 14 patients (36.8%) for anchor A and in 12 patients (31.6%) for anchor B (P > .05). The severity of perianchor cyst formation was no different for the 2 anchors (respective fluid signal grades [0-4]: 24, 3, 9, 1, and 1 for anchor A; and 26, 4, 7, 1, and 0 for anchor B; P > .05). However, in group 2, cysts were observed in 19 patients (50%) for anchor A and in 3 patients (7.9%) for anchor C (P < .001). For anchor C, only 2 cases of grade 1 and 1 case of grade 2 fluid collection were observed. Intergroup analysis of anchor A revealed no significant differences in the prevalence or severity of perianchor cyst formation (P > .05). Healing failure was observed in 12 patients (31.6%) in group 1 and 10 patients (26.3%) in group 2 (P > .05). CONCLUSION New-generation biodegradable suture anchors seem to decrease the severity of perianchor cyst formation. Future research is required to optimize the compositions and proportions of osteoconductive materials and polymers to improve adverse reactions. Nevertheless, controlling the properties of polymers and adding osteoconductive material both appear to enhance biocompatibility.
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Affiliation(s)
- Sae Hoon Kim
- Department of Orthopedic Surgery, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
| | - Do Yeon Kim
- Department of Orthopedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seoul, Korea
| | - Ji Eun Kwon
- Department of Orthopedic Surgery, National Police Hospital, Seoul, Korea
| | - Ji Soon Park
- Department of Orthopedic Surgery, Korea University Anam Hospital, Seoul, Korea
| | - Joo Han Oh
- Department of Orthopedic Surgery, Seoul National University College of Medicine, Seoul National University Bundang Hospital, Seoul, Korea
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Abstract
UNLABELLED Expression patterns of proteins involved in serine and glycine metabolism, and correlations of these patterns with clinicopathologic factors in phyllodes tumor were investigated. Tissue microarrays were prepared from 203 phyllodes tumors (PT) and stained with antibodies specific for glycine decarboxylase (GLDC), phosphoserine aminotransferase 1 (PSAT1), phosphoserine phosphatase (PSPH), phosphoglycerate dehydrogenase (PHGDH), and serine hydroxymethyltransferase 1 (SHMT1). These immunohistochemical results and clinicopathologic parameters were analyzed for correlation. Numbers of benign, borderline, and malignant tumors were 155, 32, and 16, respectively. Stromal expression of PHGDH, PSAT1, PSPH, SHMT1, and GLDC increased with increasing tumor grade, and epithelial expression of SHMT1 also increased with increasing tumor grade (p<0.001, and p=0.005, respectively). On univariate analysis, positive stainings for stromal PHGDH (p<0.001), stromal PSAT1 (p<0.001), stromal PSPH (p=0.003), epithelial SHMT1 (p=0.001), stromal SHMT1 (p=0.022), and stromal GLDC (p<0.001) were each associated with shorter disease-free survival. Stromal GLDC was associated with shorter overall survival (p<0.001). In conclusion, expression of proteins related to serine and glycine metabolism increased with increasing histologic grade in stromal components of phyllodes tumor. KEYWORDS glycine, tumor grade, metabolism, phyllodes tumor, serine.
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Lee KI, Kim DW, Kim EH, Kim JH, Samivel R, Kwon JE, Ahn JC, Chung YJ, Mo JH. Cigarette smoke promotes eosinophilic inflammation, airway remodeling, and nasal polyps in a murine polyp model. Am J Rhinol Allergy 2015; 28:208-14. [PMID: 24980232 DOI: 10.2500/ajra.2014.28.4055] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
BACKGROUND Exposure to cigarette smoking (CS) is a major risk factor for airway inflammation. However, little is known about the effects of CS exposure on eosinophilic rhinosinusitis with nasal polyps (ERSwNPs). Histopathological and molecular studies were performed to investigate its effects using a murine model of ERSwNPs. METHODS Mice were assigned to one of the following four groups (n = 8 for each group): control group, CS exposure (CS group), ERSwNP (ERS group), and ERSwNPs exposed to CS (ERS + CS group). Histopathological changes were investigated using various stains, including hematoxylin and eosin for inflammation and polyp-like lesions, Sirius red for eosinophils, toluidine blue for mast cells, Alcian blue for goblet cells, and Masson's trichrome stain for collagen fibers. mRNA expression of cytokines from nasal mucosae was measured. Serum IgE and systemic cytokine levels were measured by enzyme-linked immunosorbent assays. The expression of vascular endothelial growth factor (VEGF) and hypoxia-inducible factor (HIF) 1-alpha was evaluated by immunohistochemical staining. RESULTS The ERS + CS group showed more severe symptoms, increased the number of polyp-like lesions, infiltration of eosinophils, goblet cell hyperplasia, and subepithelial fibrosis, compared with the ERS group. Additionally, mRNA expressions of IL-4 and IL-17A were up-regulated in ERS + CS group and higher levels of IL-4, IL-6, IL-17A, and interferon gamma from splenocytes were observed significantly in the ERS + CS group compared with the ERS group. In the ERSwNP murine model, exposure to CS enhanced the expression of VEGF and HIF-1-alpha in nasal epithelial cells. CONCLUSION Chronic exposure to CS aggravated eosinophilic inflammation and promoted airway remodeling and nasal polyp formation in a murine model of ERSwNPs. The underlying mechanism might involve up-regulated expression of VEGF and HIF-1-alpha.
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Affiliation(s)
- Ki-Il Lee
- Department of Otorhinolaryngology, Dankook University College of Medicine, Chonan, South Korea
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Jang SH, Kwon JE, Kim JH, Lee JY, Kim SG, Kim JS, Jung HC, Im JP. Prediction of Tumor Recurrence in Patients with Non-Gastric Gastrointestinal Stromal Tumors Following Resection according to the Modified National Institutes of Health Criteria. Intest Res 2014; 12:229-35. [PMID: 25349597 PMCID: PMC4204716 DOI: 10.5217/ir.2014.12.3.229] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2013] [Revised: 02/04/2014] [Accepted: 02/04/2014] [Indexed: 12/25/2022] Open
Abstract
Background/Aims Few studies have investigated the prognosis of non-gastric gastrointestinal stromal tumors (GISTs) under the modified National Institutes of Health (NIH) consensus criteria in Korea. This study aims to clarify the clinical usefulness of the modified NIH criteria for risk stratification. Methods From January 2000 through October 2012, 88 patients who underwent curative resection for primary GISTs were included in this study. The enrolled patients were stratified to predict recurrence by the original NIH criteria and modified NIH criteria. Results In all, 88 patients had non-gastric GISTs, including 82 and 6 patients with GISTs of the small intestine and colorectum, respectively. The mean age was 57.3±13.0 years, and the median follow-up duration was 3.40 years (range, 0.02-12.76 years). All patients who were placed in the intermediate-risk category according to the original NIH criteria were reclassified into the high-risk category according to the modified NIH criteria. Therefore, the proportion of cases in the intermediate-risk category declined to 0.0% from 25.0% (22/88), and the proportion of cases in the high-risk category increased to 43.2% (38/88) from 18.2% (16/88) under the modified NIH criteria. Among the 22 reclassified patients, 6 (27.3%) suffered a recurrence during the observational period, and the recurrence rate of high-risk category patients was 36.8% (14/38). Conclusions Patients in the high-risk category according to the modified NIH criteria had a high GIST recurrence rate. Therefore, the modified NIH criteria are clinically useful in selecting patients who need imatinib adjuvant chemotherapy after curative surgical resection.
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Affiliation(s)
- Seung Hyeon Jang
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Ji Eun Kwon
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Jee Hyun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - June Young Lee
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Sang Gyun Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Joo Sung Kim
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Hyun Chae Jung
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
| | - Jong Pil Im
- Department of Internal Medicine and Liver Research Institute, Seoul National University College of Medicine, Seoul, Korea
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Kwon JE, Koh SJ, Chun J, Kim JW, Kim BG, Lee KL, Im JP, Kim JS, Jung HC. Effect of gastric acid suppressants and prokinetics on peritoneal dialysis-related peritonitis. World J Gastroenterol 2014; 20:8187-8194. [PMID: 25057226 PMCID: PMC4081691 DOI: 10.3748/wjg.v20.i25.8187] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Revised: 03/18/2014] [Accepted: 04/16/2014] [Indexed: 02/06/2023] Open
Abstract
AIM: To investigate the effect of gastric acid suppressants and prokinetics on peritonitis development in peritoneal dialysis (PD) patients.
METHODS: This was a single-center, retrospective study. The medical records of 398 PD patients were collected from January 2000 to September 2012 and analyzed to compare patients with at least one episode of peritonitis (peritonitis group, group A) to patients who never had peritonitis (no peritonitis group, group B). All peritonitis episodes were analyzed to compare peritonitis caused by enteric organisms and peritonitis caused by non-enteric organisms.
RESULTS: Among the 120 patients who met the inclusion criteria, 61 patients had at least one episode of peritonitis and 59 patients never experienced peritonitis. Twenty-four of 61 patients (39.3%) in group A and 15 of 59 patients (25.4%) in group B used gastric acid suppressants. Only the use of H2-blocker (H2B) was associated with an increased risk of PD-related peritonitis; the use of proton pump inhibitors, other antacids, and prokinetics was not found to be a significant risk factor for PD-related peritonitis. A total of 81 episodes of peritonitis were divided into enteric peritonitis (EP) or non-enteric peritonitis, depending on the causative organism, and gastric acid suppressants and prokinetics did not increase the risk of EP in PD patients.
CONCLUSION: The use of H2B showed a trend for an increased risk of overall PD-related peritonitis, although further studies are required to clarify the effects of drugs on PD-related peritonitis.
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Kwon JE, Jung WH, Koo JS. Expression of glycolysis-related proteins in solid papillary carcinoma of the breast according to basement membrane status. Yonsei Med J 2014; 55:576-83. [PMID: 24719122 PMCID: PMC3990068 DOI: 10.3349/ymj.2014.55.3.576] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2013] [Revised: 10/15/2013] [Accepted: 10/16/2013] [Indexed: 02/06/2023] Open
Abstract
PURPOSE The aim of this study was to investigate the differences of expression in glycolysis-related proteins such as Glut-1, carbonic anhydrase (CA) IX, and monocarboxylate transporter (MCT) 4 according to the myoepithelial cell (MEC) and basement membrane (BM) status in solid papillary carcinoma (SPC) of the breast. MATERIALS AND METHODS Immunohistochemical evaluation of Glut-1, CAIX, and MCT4, as well as p63 and type IV collagen, were performed on 23 SPC cases. RESULTS Six and nine cases of SPC showed the presence and absence of myoepithelial cells, respectively, and eight cases belonged to the borderline status (p63-positive MEC on some areas of the outer tumor surface but not in others). BM was partially or completely absent in 14 cases and present in nine cases. SPC lacking BM more frequently showed high expression of CAIX than SPC with BM (p=0.037). CONCLUSION In SPC of the breast, a strong expression of CAIX seems to be associated with an increasing degree of loss of BM, which can be interpreted as BM degradation due to the induction of extracellular acidity with increasing expression of CAIX.
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Affiliation(s)
- Ji Eun Kwon
- Department of Pathology, Ajou University College of Medicine, Suwon, Korea
| | - Woo-Hee Jung
- Department of Pathology, Yonsei University College of Medicine, Seoul, Korea
| | - Ja Seung Koo
- Department of Pathology, Yonsei University College of Medicine, Seoul, Korea
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Kim DY, Kim JY, Kim TG, Kwon JE, Sohn H, Park J, Lim BJ, Oh SH. A comparison of inflammatory mediator expression between palmoplantar pustulosis and pompholyx. J Eur Acad Dermatol Venereol 2013; 27:1559-65. [PMID: 23802874 DOI: 10.1111/jdv.12203] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2013] [Revised: 05/01/2013] [Accepted: 05/30/2013] [Indexed: 11/28/2022]
Abstract
BACKGROUND Both palmoplantar pustulosis (PPP) and pompholyx are clinically characterized by acute eruptions of vesicles or pustules on the palms or soles. OBJECTIVES This study aims to compare the expression of certain inflammatory mediator genes and proteins between patients with PPP and pompholyx using skin tissue samples. METHODS Skin biopsies obtained from lesional skin from patients with PPP (n = 7) and pompholyx (n = 5) were analysed by quantitative RT-PCR to measure the mRNA levels of nine genes, including IL-4, IL-8, IL-9, IL-17, IL-22, IFN-γ, CCL-20, granzyme and perforin. For immunohistochemical analysis, 34 paraffin-embedded skin specimens (PPP, n = 22; pompholyx, n = 12) were stained with anti-IL-8, IL-17A, IL-22 and granzyme B antibodies. RESULTS Of genes analysed, IL-8 and IL-17A mRNA expression levels were significantly higher in the PPP group than the pompholyx group (P = 0.012 in both), whereas the mRNA expression of granzyme B was significantly higher in pompholyx when compared with PPP (P = 0.004). Regarding the IL-17A immunohistochemical staining, tissue from the PPP lesions contained significantly more IL-17A(+) cells in both the epidermis and papillary dermis when compared with pompholyx (P < 0.001 and P = 0.019 respectively). Moreover, the intensity of the IL-8 immunoreactivity was also greater in the PPP skin lesions than the pompholyx tissue (P < 0.001). CONCLUSIONS IL-8 and IL-17A, both are increased in PPP tissue, may represent important immunologic mediators that help to differentiate this clinical entity from pompholyx. This study may provide useful clues in distinguishing PPP from pompholyx, as well as helping to understand the pathogeneses of these two diseases.
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Affiliation(s)
- D Y Kim
- Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
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Kim SH, Kwon JE, Kim HB. Successful treatment of steroid-dependent eosinophilic cellulitis with cyclosporine. Allergy Asthma Immunol Res 2012; 5:62-4. [PMID: 23277881 PMCID: PMC3529232 DOI: 10.4168/aair.2013.5.1.62] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Accepted: 08/16/2012] [Indexed: 11/20/2022]
Abstract
Eosinophilic cellulitis (EC) is a rare idiopathic disorder, first described as a "recurrent granulomatous dermatitis with eosinophilia", that mimics cellulitis of infectious origin. We describe here a previously healthy 11-year-old girl who experienced fever and tender erythematous patch lesions after trauma to her knees. Because of the relapsing cellulitis-like skin lesions, skin biopsies were taken, resulting in a diagnosis of EC. The patient responded well to oral prednisolone but experienced side effects and relapse during dose tapering. She was switched from prednisolone to cyclosporine. Her EC remained under control, and she showed no evidence of relapse after discontinuation of cyclosporine.
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Affiliation(s)
- Su Hee Kim
- Department of Pediatrics, Inje University Sanggye Paik Hospital, Seoul, Korea
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Kim JY, Jeon TJ, Bae BN, Kwon JE, Kim HJ, Park K, Shin E. The prognostic significance of growth factors and growth factor receptors in gastric adenocarcinoma. APMIS 2012. [PMID: 23030255 DOI: 10.1111/j.1600-0463] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
We evaluated growth factors/receptors expression in gastric adenocarcinoma. Immunohistochemistry was used to evaluate epidermal growth factor receptor (EGFR), vascular endothelial growth factor (VEGF), VEGF-D, VEGF receptor (VEGFR)-2, VEGFR-3, transforming growth factor (TGF)-α, TGF-β1, and TGF-β-RII in tissue microarrays of adenocarcinoma, dysplasia, metaplasia, and gastritis. In adenocarcinoma, the expression rates of EGFR, VEGF, VEGF-D, VEGFR-2, VEGFR-3, TGF-α, TGF-β1, and TGF-β-RII were 2.0%, 0%, 10.7%, 4.4%, 11.2%, 26.3%, 9.4%, and 19.5%, respectively. VEGF-D, TGF-α, TGF-β1, and TGF-β-RII expression rate were higher in adenocarcinoma than in other groups. TGF-β-RII expression was correlated with VEGFR-3, VEGF-D, and TGF-α expression in adenocarcinomas. Tumor location, histologic type, stage, lymphatic invasion, perineural invasion, angioinvasion, VEGF-D, and VEGFR-2 expressions were associated with patient survival in a log rank test and advanced stage and positive expression of VEGF-D were poor prognostic factors using Cox analysis. VEGF-D expression may be of prognostic value in gastric adenocarcinoma, whereas EGFR and TGF family expression may only have a minor influence.
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Affiliation(s)
- Jung Yeon Kim
- Department of Pathology, Inje University Sanggye Paik Hospital, Seoul, Korea.
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Kim JY, Jeon TJ, Bae BN, Kwon JE, Kim HJ, Park K, Shin E. The prognostic significance of growth factors and growth factor receptors in gastric adenocarcinoma. APMIS 2012; 121:95-104. [PMID: 23030255 DOI: 10.1111/j.1600-0463.2012.02942.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Accepted: 05/25/2012] [Indexed: 12/18/2022]
Abstract
We evaluated growth factors/receptors expression in gastric adenocarcinoma. Immunohistochemistry was used to evaluate epidermal growth factor receptor (EGFR), vascular endothelial growth factor (VEGF), VEGF-D, VEGF receptor (VEGFR)-2, VEGFR-3, transforming growth factor (TGF)-α, TGF-β1, and TGF-β-RII in tissue microarrays of adenocarcinoma, dysplasia, metaplasia, and gastritis. In adenocarcinoma, the expression rates of EGFR, VEGF, VEGF-D, VEGFR-2, VEGFR-3, TGF-α, TGF-β1, and TGF-β-RII were 2.0%, 0%, 10.7%, 4.4%, 11.2%, 26.3%, 9.4%, and 19.5%, respectively. VEGF-D, TGF-α, TGF-β1, and TGF-β-RII expression rate were higher in adenocarcinoma than in other groups. TGF-β-RII expression was correlated with VEGFR-3, VEGF-D, and TGF-α expression in adenocarcinomas. Tumor location, histologic type, stage, lymphatic invasion, perineural invasion, angioinvasion, VEGF-D, and VEGFR-2 expressions were associated with patient survival in a log rank test and advanced stage and positive expression of VEGF-D were poor prognostic factors using Cox analysis. VEGF-D expression may be of prognostic value in gastric adenocarcinoma, whereas EGFR and TGF family expression may only have a minor influence.
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Affiliation(s)
- Jung Yeon Kim
- Department of Pathology, Inje University Sanggye Paik Hospital, Seoul, Korea.
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