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Lee YY, Oh Y, Seo MS, Seo MG, Han JE, Kim KT, Park JK, Kim SD, Park SJ, Kwak D, Rhee MH. The anti-platelet activity of panaxadiol fraction and panaxatriol fraction of Korean Red Ginseng in vitro and ex vivo. J Ginseng Res 2023; 47:638-644. [PMID: 37720569 PMCID: PMC10499584 DOI: 10.1016/j.jgr.2023.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 03/13/2023] [Accepted: 03/26/2023] [Indexed: 09/19/2023] Open
Abstract
Background The anti-platelet activity of the saponin fraction of Korean Red Ginseng has been widely studied. The saponin fraction consists of the panaxadiol fraction (PDF) and panaxatriol fraction (PTF); however, their anti-platelet activity is yet to be compared. Our study aimed to investigate the potency of anti-platelet activity of PDF and PTF and to elucidate how well they retain their anti-platelet activity via different administration routes. Methods For ex vivo studies, Sprague-Dawley rats were orally administered 250 mg/kg PDF and PTF for 7 consecutive days before blood collection via cardiac puncture. Platelet aggregation was conducted after isolation of the washed platelets. For in vitro studies, washed platelets were obtained from Sprague-Dawley rats. Collagen and adenosine diphosphate (ADP) were used to induce platelet aggregation. Collagen was used as an agonist for assaying adenosine triphosphate release, thromboxane B2, serotonin, cyclic adenosine monophosphate, and cyclic guanosine monophosphate (cGMP) release. Results When treated ex vivo, PDF not only inhibited ADP and collagen-induced platelet aggregation, but also upregulated cGMP levels and reduced platelet adhesion to fibronectin. Furthermore, it also inhibited Akt phosphorylation induced by collagen treatment. Panaxadiol fraction did not exert any anti-platelet activity in vitro, whereas PTF exhibited potent anti-platelet activity, inhibiting ADP, collagen, and thrombin-induced platelet aggregation, but significantly elevated levels of cGMP. Conclusion Our study showed that in vitro and ex vivo PDF and PTF treatments exhibited different potency levels, indicating possible metabolic conversions of ginsenosides, which altered the content of ginsenosides capable of preventing platelet aggregation.
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Affiliation(s)
- Yuan Yee Lee
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
- Department of Animal and Avian Sciences, University of Maryland, College Park, United States
| | - Yein Oh
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Min-Soo Seo
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Min-Goo Seo
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Jee Eun Han
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Kyoo-Tae Kim
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Jin-Kyu Park
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Sung Dae Kim
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Sang-Joon Park
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Dongmi Kwak
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Man Hee Rhee
- College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
- Cardiovascular Research Institute, Daegu, Republic of Korea
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Baek SM, Kim TU, Lee YJ, Lee SW, Yim JH, Kim WJ, Kim HY, Kang KK, Kim SD, Park SJ, Choi SK, Park JK. Disrupted intestinal mucosal barrier mediated by alcohol consumption aggravates systemic microplastic accumulation. Ecotoxicol Environ Saf 2023; 262:115342. [PMID: 37567104 DOI: 10.1016/j.ecoenv.2023.115342] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Revised: 08/02/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023]
Abstract
Waste plastics are degraded into microplastics (MPs), which are easily accumulated in the human body through digestive tracts, via the food chain. Alcohol is a widely consumed chemical throughout the world with the ability to alter the intestinal barrier. For this reason, this study was aimed to investigate exact relevance between alcohol consumption and organ distributions of MPs in an ethanol feeding animal model characterized by disrupted intestinal mucosal barriers. In this study, C57BL/6 mice were separated into control, control + MP, ethanol (EtOH), and EtOH + MP groups. Mice in the EtOH group ingested a Lieber-DeCarli diet containing EtOH. Mice in the MP groups ingested 0.1 mg/kg fluorophore polymerized polystyrene microplastics via oral gavage polystyrene MPs via oral gavage. The EtOH + MP group showed higher MP accumulation in the liver than the control + MP group. The same pattern was observed in the intestines, spleen, and brain. This pattern was more prominent in the intestines, with the EtOH + MP group showing the most severe damage due to EtOH ingestion. This result suggests that the intestinal mucosa disruption caused by EtOH ingestion exacerbates MP accumulation in the organs. Moreover, hepatic steatosis was more severe in the EtOH + MP group than in the EtOH group, suggesting the secondary manifestation mediated by MP accumulation. This study reports a novel MP accumulation pattern in the body by providing novel insights into alcohol-induced gut permeability and microplastics toxicity from the perspective of gut-liver axis.
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Affiliation(s)
- Su-Min Baek
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; Cardiovascular Research Institute, Kyungpook National University, Daegu 41944, Republic of Korea
| | - Tae-Un Kim
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Young-Jin Lee
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Seoung-Woo Lee
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; Core Protein Resources Center, Daegu-Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Jae-Hyuk Yim
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Woo Jun Kim
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Hee-Yeon Kim
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea; Core Protein Resources Center, Daegu-Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea
| | - Kyung-Ku Kang
- Preclinical Research Center, Daegu-Gyeongbuk Medical Innovation Foundation, Daegu 41016, Republic of Korea
| | - Sung Dae Kim
- College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sang-Joon Park
- College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Seong-Kyoon Choi
- Core Protein Resources Center, Daegu-Gyeongbuk Institute of Science and Technology (DGIST), Daegu 42988, Republic of Korea.
| | - Jin-Kyu Park
- Department of Veterinary Pathology, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea.
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Seo YN, Baik JS, Lee SM, Lee JE, Ahn HR, Lim MS, Park MT, Kim SD. Ionizing Radiation Selectively Increases CXC Ligand 10 Level via the DNA-Damage-Induced p38 MAPK-STAT1 Pathway in Murine J774A.1 Macrophages. Cells 2023; 12:cells12071009. [PMID: 37048082 PMCID: PMC10093567 DOI: 10.3390/cells12071009] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 01/31/2023] [Revised: 03/09/2023] [Accepted: 03/20/2023] [Indexed: 03/29/2023] Open
Abstract
Ionizing radiation (IR) is an important means of tumor treatment in addition to surgery and drugs. Attempts have been made to improve the efficiency of radiotherapy by identifying the various biological effects of IR on cells. Components of the tumor microenvironment, such as macrophages, fibroblasts, and vascular endothelial cells, influence cancer treatment outcomes through communication with tumor cells. In this study, we found that IR selectively increased the production of CXC motif chemokine ligand 10 (CXCL10), which is emerging as an important biomarker for determining the prognosis of anticancer treatments, without changing the levels of CXCL9 and CXCL11 in murine J774A.1 macrophages. Pretreatment with KU55933, an ataxia telangiectasia mutated (ATM) kinase inhibitor, significantly inhibited IR-induced CXCL10 production. In contrast, pretreatment with N-acetyl-cysteine or glutathione, a reactive oxygen species scavenger, did not inhibit IR-induced CXCL10 production. Further, we attempted to identify the intracellular molecular target associated with the IR-induced increase in CXCL10 secretion by J774A.1 macrophages. IR phosphorylated p38 mitogen-activated protein kinase (MAPK) and signal transducer and activator of transcription 1 (STAT1) in J774A.1 macrophages, and p38 MAPK and STAT1 were involved in CXCL10 via IR using pharmacological inhibitors (SB203580 and fludarabine, respectively) and the siRNA technique.
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Affiliation(s)
- You Na Seo
- Research Center, Dongnam Institute of Radiological & Medical Sciences, Busan 46033, Republic of Korea
- Department of Microbiology and Immunology, College of Medicine, Inge University, Busan 47392, Republic of Korea
| | - Ji Sue Baik
- Research Center, Dongnam Institute of Radiological & Medical Sciences, Busan 46033, Republic of Korea
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan 49315, Republic of Korea
| | - Song Mi Lee
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyoung Pook National University, Daegu 41566, Republic of Korea
| | - Ji Eun Lee
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyoung Pook National University, Daegu 41566, Republic of Korea
| | - Hye Rim Ahn
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyoung Pook National University, Daegu 41566, Republic of Korea
| | - Min Seo Lim
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyoung Pook National University, Daegu 41566, Republic of Korea
| | - Moon-Taek Park
- Research Center, Dongnam Institute of Radiological & Medical Sciences, Busan 46033, Republic of Korea
- Correspondence: (M.-T.P.); (S.D.K.)
| | - Sung Dae Kim
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyoung Pook National University, Daegu 41566, Republic of Korea
- Correspondence: (M.-T.P.); (S.D.K.)
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Quah Y, Lee YY, Lee SJ, Kim SD, Rhee MH, Park SC. In silico investigation of Panax ginseng lead compounds against COVID-19 associated platelet activation and thromboembolism. J Ginseng Res 2023; 47:283-290. [PMID: 36160270 PMCID: PMC9482091 DOI: 10.1016/j.jgr.2022.09.001] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 08/02/2022] [Accepted: 09/05/2022] [Indexed: 11/19/2022] Open
Abstract
Hypercoagulability is frequently observed in patients with severe coronavirus disease-2019 (COVID-19). Platelets are a favorable target for effectively treating hypercoagulability in COVID-19 patients as platelet hyperactivity has also been observed. It is difficult to develop a treatment for COVID-19 that will be effective against all variants and the use of antivirals may not be fully effective against COVID-19 as activated platelets have been detected in patients with COVID-19. Therefore, patients with less severe side effects often turn toward natural remedies. Numerous phytochemicals are being investigated for their potential to treat a variety of illnesses, including cancer and bacterial and viral infections. Natural products have been used to alleviate COVID-19 symptoms. Panax ginseng has potential for managing cardiovascular diseases and could be a treatment for COVID-19 by targeting the coagulation cascade and platelet activation. Using molecular docking, we analyzed the interactions of bioactive chemicals in P. ginseng with important proteins and receptors involved in platelet activation. Furthermore, the SwissADME online tool was used to calculate the pharmacokinetics and drug-likeness properties of the lead compounds of P. ginseng. Dianthramine, deoxyharrtingtonine, and suchilactone were determined to have favorable pharmacokinetic profiles.
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Affiliation(s)
- Yixian Quah
- Developmental and Reproductive Toxicology Research Group, Korea Institute of Toxicology, Daejeon, Republic of Korea
| | - Yuan Yee Lee
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Seung-Jin Lee
- Developmental and Reproductive Toxicology Research Group, Korea Institute of Toxicology, Daejeon, Republic of Korea
| | - Sung Dae Kim
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Man Hee Rhee
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
- Corresponding author. Laboratory of Physiology and Cell Signaling, College of Veterinary Medicine, Kyungpook National University, Daegu, 41566, Republic of Korea.
| | - Seung-Chun Park
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
- Corresponding author. College of Veterinary Medicine, Kyungpook National University, Daegu, 41566, Republic of Korea.
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Jeon W, Jung SY, Lee CY, Kim WT, Kim H, Jang KW, Lim H, Lee M, Jeong DH, Kim SD, Kim IA, Choi SH, Son TG, Kim KS. Evaluation of Radiation Sensitivity Differences in Mouse Liver Tumor Organoids Using CRISPR/Cas9-Mediated Gene Mutation. Technol Cancer Res Treat 2023; 22:15330338231165125. [PMID: 36960537 PMCID: PMC10041602 DOI: 10.1177/15330338231165125] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND To assess the radiosensitivity of liver tumors harboring different genetic mutations, mouse liver tumors were generated in vivo through the hydrodynamic injection of clustered regularly interspaced short palindromic repeat/caspase 9 (CRISPR/Cas9) constructs encoding single-guide RNAs (sgRNAs) targeting Tp53, Pten, Nf1, Nf2, Tsc2, Cdkn2a, or Rb1. METHODS The plasmid vectors were delivered to the liver of adult C57BL/6 mice via hydrodynamic tail vein injection. The vectors were injected into 10 mice in each group. Organoids were generated from mouse liver tumors. The radiation response of the organoids was assessed using an ATP cell viability assay. RESULTS The mean survival period of mice injected with vectors targeting Nf2 (4.8 months) was lower than that of other mice. Hematoxylin and eosin staining, immunohistochemical (IHC) staining, and target sequencing analyses revealed that mouse liver tumors harbored the expected mutations. Tumor organoids were established from mouse liver tumors. Histological evaluation revealed marked morphological similarities between the mouse liver tumors and the generated tumor organoids. Moreover, IHC staining indicated that the parental tumor protein expression pattern was maintained in the organoids. The results of the ATP cell viability assay revealed that the tumor organoids with mutated Nf2 were more resistant to high-dose radiation than those with other gene mutations. CONCLUSIONS This study developed a radiation response assessment system for mouse tumors with mutant target genes using CRISPR/Cas9 and organoids. The Tp53 and Pten double mutation in combination with the Nf2 mutation increased the radiation resistance of tumors. The system used in this study can aid in elucidating the mechanism underlying differential intrinsic radiation sensitivity of individual tumors.
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Affiliation(s)
- Wan Jeon
- Department of Radiation Oncology, 222204Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea
- Department of Radiation Oncology, 37990Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Se Yeon Jung
- Research Center, 222204Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea
| | - Chae Young Lee
- Research Center, 222204Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea
| | - Won-Tae Kim
- Research Center, 222204Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea
| | - Hyun Kim
- Research Center, 222204Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea
| | - Kyoung Won Jang
- Research Center, 222204Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea
| | - Heuijin Lim
- Research Center, 222204Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea
| | - Manwoo Lee
- Research Center, 222204Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea
| | - Dong Hyeok Jeong
- Research Center, 222204Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea
| | - Sung Dae Kim
- Research Center, 222204Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea
| | - In Ah Kim
- Department of Radiation Oncology, 37990Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Radiation Oncology, 65462Seoul National University Bundang Hospital, 37990Seoul National University College of Medicine, Seongnam, Republic of Korea
| | - Si Ho Choi
- Research Center, 222204Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea
| | - Tae Gen Son
- Research Center, 222204Dongnam Institute of Radiological and Medical Sciences, Busan, Republic of Korea
| | - Kyung Su Kim
- Department of Radiation Oncology, 37990Seoul National University College of Medicine, Seoul, Republic of Korea
- Department of Radiation Oncology, 58927Seoul National University Hospital, Seoul, Republic of Korea
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Kwon HW, Kim SD, Rhee MH, Shin JH. Pharmacological Actions of 5-Hydroxyindolin-2 on Modulation of Platelet Functions and Thrombus Formation via Thromboxane A 2 Inhibition and cAMP Production. Int J Mol Sci 2022; 23:ijms232314545. [PMID: 36498873 PMCID: PMC9739977 DOI: 10.3390/ijms232314545] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/10/2022] [Accepted: 11/17/2022] [Indexed: 11/24/2022] Open
Abstract
Platelets play a very significant role in hemostasis while simultaneously posing a risk for the development of various cardiovascular diseases. Platelet-mediated issues can occur in blood vessels and trigger various medical problems. Therefore, controlling platelet function is important in the prevention of thrombosis. In this regard, we need to find compounds that provide potent antiplatelet activity with minimum side effects. Therefore, we examined the effect of 5-hydroxyindolin-2-one isolated from Protaetia brevitarsis larvae having antiplatelet properties and investigated different pathways that mediate the antiplatelet activity. We examined the effect of 5-hydroxyindolin-2-one (5-HI) on the regulation of phosphoproteins, thromboxane A2 generation, and integrin αIIbβ3 action. Our data showed that human platelet aggregation was inhibited by 5-HI (75, 100, 150, 200 μM) without cytotoxicity, and it suppressed intracellular Ca2+ concentration through the regulation of inositol 1, 4, 5-triphosphate receptor I (Ser1756) and extracellular signal-regulated kinase (ERK). Moreover, collagen-elevated thromboxane A2 production and αIIbβ3 action were inhibited by 5-HI through the regulation of cytosolic phospholipase A2 (cPLA2), mitogen-activated protein kinase p38 (p38MAPK), vasodilator-stimulated phosphoprotein (VASP), phosphoinositide 3-kinase (PI3K), and Akt (protein kinase B). Therefore, we suggested that 5-HI could be a potential substance for the prevention of thrombosis-mediated thrombosis.
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Affiliation(s)
- Hyuk-Woo Kwon
- Department of Biomedical Laboratory Science, Far East University, Eumseong 27601, Republic of Korea
- Department of Microbiological Resource Research Institute, Far East University, Eumseong 27601, Republic of Korea
| | - Sung Dae Kim
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Man Hee Rhee
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
- Cardiovascular Research Institute, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea
- Correspondence: author: (M.H.R.); (J.-H.S.)
| | - Jung-Hae Shin
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Republic of Korea
- Cardiovascular Research Institute, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea
- Correspondence: author: (M.H.R.); (J.-H.S.)
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Baik JS, Seo YN, Lee YC, Yi JM, Rhee MH, Park MT, Kim SD. Involvement of the p38 MAPK-NLRC4-Caspase-1 Pathway in Ionizing Radiation-Enhanced Macrophage IL-1β Production. Int J Mol Sci 2022; 23:ijms232213757. [PMID: 36430236 PMCID: PMC9698243 DOI: 10.3390/ijms232213757] [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] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 11/01/2022] [Accepted: 11/02/2022] [Indexed: 11/10/2022] Open
Abstract
Macrophages are abundant immune cells in the tumor microenvironment and are crucial in regulating tumor malignancy. We previously reported that ionizing radiation (IR) increases the production of interleukin (IL)-1β in lipopolysaccharide (LPS)-treated macrophages, contributing to the malignancy of colorectal cancer cells; however, the mechanism remained unclear. Here, we show that IR increases the activity of cysteine-aspartate-specific protease 1 (caspase-1), which is regulated by the inflammasome, and cleaves premature IL-1β to mature IL-1β in RAW264.7 macrophages. Irradiated RAW264.7 cells showed increased expression of NLRC4 inflammasome, which controls the activity of caspase-1 and IL-1β production. Silencing of NLRC4 using RNA interference inhibited the IR-induced increase in IL-1β production. Activation of the inflammasome can be regulated by mitogen-activated protein kinase (MAPK)s in macrophages. In RAW264.7 cells, IR increased the phosphorylation of p38 MAPK but not extracellular signal-regulated kinase and c-Jun N-terminal kinase. Moreover, a selective inhibitor of p38 MAPK inhibited LPS-induced IL-1β production and NLRC4 inflammasome expression in irradiated RAW264.7 macrophages. Our results indicate that IR-induced activation of the p38 MAPK-NLRC4-caspase-1 activation pathway in macrophages increases IL-1β production in response to LPS.
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Affiliation(s)
- Ji Sue Baik
- Research Center, Dongnam Institute of Radiological & Medical Sciences, Busan 46033, Korea
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan 49315, Korea
| | - You Na Seo
- Research Center, Dongnam Institute of Radiological & Medical Sciences, Busan 46033, Korea
- Department of Microbiology and Immunology, College of Medicine, Inge University, Busan 47392, Korea
| | - Young-Choon Lee
- Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University, Busan 49315, Korea
| | - Joo Mi Yi
- Department of Microbiology and Immunology, College of Medicine, Inge University, Busan 47392, Korea
| | - Man Hee Rhee
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyoung Pook National University, Daegu 41566, Korea
| | - Moon-Taek Park
- Research Center, Dongnam Institute of Radiological & Medical Sciences, Busan 46033, Korea
- Correspondence: (M.-T.P.); (S.D.K.); Tel.: +82-51-720-5141 (M.-T.P.); +82-53-950-5958 (S.D.K.)
| | - Sung Dae Kim
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyoung Pook National University, Daegu 41566, Korea
- Correspondence: (M.-T.P.); (S.D.K.); Tel.: +82-51-720-5141 (M.-T.P.); +82-53-950-5958 (S.D.K.)
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Jo WS, Kim SD, Jeong SK, Oh SJ, ParK MT, Lee CG, Kang YR, Jeong MH. Resveratrol analogue, HS-1793, inhibits inflammatory mediator release from macrophages by interfering with the TLR4 mediated NF-κB activation. Food Sci Biotechnol 2022; 31:433-441. [PMID: 35464242 PMCID: PMC8994813 DOI: 10.1007/s10068-022-01052-9] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 02/06/2022] [Accepted: 02/13/2022] [Indexed: 11/04/2022] Open
Abstract
Resveratrol is known to have anti-inflammatory properties. However, high-dose resveratrol is required for optimal anti-inflammatory effects. HS-1793 is a derivative designed to be metabolically stable and more effective than resveratrol. We tested whether HS-1793 also has anti-inflammatory activity. HS-1793 effectively inhibited the mRNA and protein expression of lipopolysaccharide (LPS)-induced inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) in macrophages. Therefore, the production of nitric oxide (NO) and prostaglandin E2 (PGE2) was significantly attenuated. In addition, HS-1793 completely suppressed the production of inflammatory cytokines enhanced by LPS treatment along with a decrease in Toll-like receptor 4 (TLR4) expression. At the same time, the expression of myeloid differentiation factor 88 (MyD88), IL-1 receptor-associated kinase 1 (IRAK1), and TNF receptor-associated factor 6 (TRAF6) signaling molecules and the nuclear translocation of nuclear factor kappa B (NF-κB)/p65 were also downregulated. We conclusively suggest that HS-1793 also exhibits anti-inflammatory properties by effectively inhibiting TLR4-mediated NF-κB activation.
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Affiliation(s)
- Wol Soon Jo
- grid.464567.20000 0004 0492 2010Department of Research Center, Dongnam Institute of Radiological and Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, 46033 Republic of Korea
| | - Sung Dae Kim
- grid.258803.40000 0001 0661 1556Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daehak-ro 80, Buk-gu, Daegu, 41566 Republic of Korea
| | - Soo Kyung Jeong
- grid.464567.20000 0004 0492 2010Department of Research Center, Dongnam Institute of Radiological and Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, 46033 Republic of Korea
- grid.255166.30000 0001 2218 7142Department of Microbiology, Dong-A University College of Medicine, Daeshingongwon-gil 32, Seo-gu, Busan, 49236 Republic of Korea
| | - Su Jung Oh
- grid.464567.20000 0004 0492 2010Department of Research Center, Dongnam Institute of Radiological and Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, 46033 Republic of Korea
| | - Moon Taek ParK
- grid.464567.20000 0004 0492 2010Department of Research Center, Dongnam Institute of Radiological and Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, 46033 Republic of Korea
| | - Chang Geun Lee
- grid.464567.20000 0004 0492 2010Department of Research Center, Dongnam Institute of Radiological and Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, 46033 Republic of Korea
| | - Young- Rok Kang
- grid.464567.20000 0004 0492 2010Department of Research Center, Dongnam Institute of Radiological and Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, 46033 Republic of Korea
| | - Min Ho Jeong
- grid.255166.30000 0001 2218 7142Department of Microbiology, Dong-A University College of Medicine, Daeshingongwon-gil 32, Seo-gu, Busan, 49236 Republic of Korea
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Lee YY, Ullah HMA, Ha LS, Kim SD, Yun BS, Rhee MH. Isopanepoxydone inhibits oxidative damage in murine alveolar macrophages via NRF2 and NLRP3 inflammasome. Immunopharmacol Immunotoxicol 2022; 44:347-354. [PMID: 35297281 DOI: 10.1080/08923973.2022.2047197] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Respiratory diseases due to particulate matter are a serious health issue. We sought to investigate the efficacy of isopanepoxydone (ISO) isolated from the Panus rudis as a therapeutic against particulate matter-induced respiratory complications. MATERIALS AND METHODS ISO was isolated from a culture broth of Panus rudis using solvent partition, silica gel, and column chromatography, and high-performance liquid chromatography. Its chemical structure was determined spectroscopically. Murine alveolar macrophages (MH-S) were treated with ISO to investigate the inhibition of nitric oxide (NO) while cytotoxicity was investigated via a 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay. The expression of pro-inflammatory mediators, cytokines, and protein expression levels in the oxidative protective and inflammasome pathway were also investigated. Reactive oxygen species in MH-S cells were investigated using 2',7'-dichlorofluorescein diacetate while immunofluorescence was performed to investigate the expression of activated apoptosis-associated speck-like proteins (ASC) containing a caspase recruitment domain in MH-S cells. RESULTS ISO effectively inhibited CFA-induced NO production with no cytotoxicity on MH-S cells and pro-inflammatory mediators and cytokines were also inhibited (except tumor necrosis factor α and interleukin-6). ISO enhanced the protein expression of nuclear factor erythroid 2-related factor 2, while suppressing proteins in the inflammasome pathway, but did not suppress the expression of nuclear factor-kappa B. ISO also reduced detectable ROS other than preventing the activation of ASC. CONCLUSION Pathways of action of ISO in MH-S cells that prevent oxidative damage and suppress the expression of proteins in the inflammasome pathway were investigated. ISO may be developed as a treatment for respiratory inflammation.
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Affiliation(s)
- Yuan Yee Lee
- Department of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - H M Arif Ullah
- Department of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Lee Su Ha
- Division of Biotechnology and Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Jeonbuk, Republic of Korea
| | - Sung Dae Kim
- Department of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Bong-Sik Yun
- Division of Biotechnology and Advanced Institute of Environment and Bioscience, College of Environmental and Bioresource Sciences, Jeonbuk National University, Jeonbuk, Republic of Korea
| | - Man Hee Rhee
- Department of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
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Lee YY, Kim SD, Park SC, Rhee MH. Panax ginseng: Inflammation, platelet aggregation, thrombus formation, and atherosclerosis crosstalk. J Ginseng Res 2022; 46:54-61. [PMID: 35058727 PMCID: PMC8753522 DOI: 10.1016/j.jgr.2021.09.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 09/08/2021] [Accepted: 09/08/2021] [Indexed: 12/20/2022] Open
Abstract
Ginseng has been widely studied due to its various therapeutic properties on various diseases such as cardiovascular disease (CVD). Cardiovascular disease has been canonically known to be caused by high levels of low-density lipoproteins (LDL) in the bloodstream, in addition to the impaired vasodilatory effects of cholesterol. However, current research on CVD has revealed a cascade of mechanisms involving a series of events that contribute to the progression of CVD. Although this has been elucidated and summarized in previous studies the detailed correlation between platelet aggregation and innate immunity that plays an important role in CVD progression has not been thoroughly summarized. Furthermore, immune cell subtypes also contribute to the progression of plaque formation in the subendothelial layer. Thrombus formation and the coagulation cascade also have a vital role in the progression of atherosclerosis. Hence, in this mini review we aim to elucidate, summarize, and propose the potent therapeutic effect of ginseng on CVD, mainly on platelet aggregation, plaque formation, and thrombus formation.
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Ullah HMA, Kwon TH, Park S, Kim SD, Rhee MH. Isoleucilactucin Ameliorates Coal Fly Ash-Induced Inflammation through the NF-κB and MAPK Pathways in MH-S Cells. Int J Mol Sci 2021; 22:ijms22179506. [PMID: 34502415 PMCID: PMC8430556 DOI: 10.3390/ijms22179506] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [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: 08/13/2021] [Revised: 08/25/2021] [Accepted: 08/29/2021] [Indexed: 02/07/2023] Open
Abstract
We investigated whether isoleucilactucin, an active constituent of Ixeridium dentatum, reduces inflammation caused by coal fly ash (CFA) in alveolar macrophages (MH-S). The anti-inflammatory effects of isoleucilactucin were assessed by measuring the concentration of nitric oxide (NO) and the expression of pro-inflammatory mediators in MH-S cells exposed to CFA-induced inflammation. We found that isoleucilactucin reduced CFA-induced NO generation dose-dependently in MH-S cells. Moreover, isoleucilactucin suppressed CFA-activated proinflammatory mediators, including cyclooxygenase-2 (COX2) and inducible NO synthase (iNOS), and the proinflammatory cytokines such as interleukin-(IL)-1β, IL-6, and tumor necrosis factor (TNF-α). The inhibiting properties of isoleucilactucin on the nuclear translocation of phosphorylated nuclear factor-kappa B (p-NF-κB) were observed. The effects of isoleucilactucin on the NF-κB and mitogen-activated protein kinase (MAPK) pathways were also measured in CFA-stimulated MH-S cells. These results indicate that isoleucilactucin suppressed CFA-stimulated inflammation in MH-S cells by inhibiting the NF-κB and MAPK pathways, which suggest it might exert anti-inflammatory properties in the lung.
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Affiliation(s)
- H. M. Arif Ullah
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Korea; (H.M.A.U.); (S.D.K.)
| | - Tae-Hyung Kwon
- Department of Research and Development, Chuncheon Bio-Industry Foundation (CBF), Chuncheon 24232, Korea
- Correspondence: (T.-H.K.); (M.H.R.); Tel.: +82-33-258-6993 (T.-H.K.); +82-53-950-5967 (M.H.R.)
| | - SeonJu Park
- Chuncheon Center, Korea Basic Science Institute (KBSI), Chuncheon 24341, Korea;
| | - Sung Dae Kim
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Korea; (H.M.A.U.); (S.D.K.)
| | - Man Hee Rhee
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu 41566, Korea; (H.M.A.U.); (S.D.K.)
- Correspondence: (T.-H.K.); (M.H.R.); Tel.: +82-33-258-6993 (T.-H.K.); +82-53-950-5967 (M.H.R.)
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12
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Irfan M, Lee YY, Lee KJ, Kim SD, Rhee MH. Comparative antiplatelet and antithrombotic effects of red ginseng and fermented red ginseng extracts. J Ginseng Res 2021; 46:387-395. [PMID: 35600768 PMCID: PMC9120646 DOI: 10.1016/j.jgr.2021.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 01/19/2021] [Revised: 04/10/2021] [Accepted: 05/30/2021] [Indexed: 12/13/2022] Open
Affiliation(s)
- Muhammad Irfan
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
- Department of Oral Biology, University of Illinois at Chicago, Chicago, IL, USA
| | - Yuan Yee Lee
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Ki-Ja Lee
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Sung Dae Kim
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
| | - Man Hee Rhee
- Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Republic of Korea
- Corresponding author. Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, 41566, Republic of Korea.
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13
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An SB, Yang K, Kim CW, Choi SH, Kim E, Kim SD, Koh JS. Longitudinal Imaging of Liver Cancer Using MicroCT and Nanoparticle Contrast Agents in CRISPR/Cas9-Induced Liver Cancer Mouse Model. Technol Cancer Res Treat 2021; 20:15330338211016466. [PMID: 34039112 PMCID: PMC8165521 DOI: 10.1177/15330338211016466] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
Abstract
Introduction: Micro-computed tomography with nanoparticle contrast agents may be a suitable tool for monitoring the time course of the development and progression of tumors. Here, we suggest a practical and convenient experimental method for generating and longitudinally imaging murine liver cancer models. Methods: Liver cancer was induced in 6 experimental mice by injecting clustered regularly interspaced short palindromic repeats/clustered regularly interspaced short palindromic repeats-associated protein 9 plasmids causing mutations in genes expressed by hepatocytes. Nanoparticle agents are captured by Kupffer cells and detected by micro-computed tomography, thereby enabling longitudinal imaging. A total of 9 mice were used for the experiment. Six mice were injected with both plasmids and contrast, 2 injected with contrast alone, and one not injected with either agent. Micro-computed tomography images were acquired every 2- up to 14-weeks after cancer induction. Results: Liver cancer was first detected by micro-computed tomography at 8 weeks. The mean value of hepatic parenchymal attenuation remained almost unchanged over time, although the standard deviation of attenuation, reflecting heterogeneous contrast enhancement of the hepatic parenchyma, increased slowly over time in all mice. Histopathologically, heterogeneous distribution and aggregation of Kupffer cells was more prominent in the experimental group than in the control group. Heterogeneous enhancement of hepatic parenchyma, which could cause image quality deterioration and image misinterpretation, was observed and could be due to variation in Kupffer cells distribution. Conclusion: Micro-computed tomography with nanoparticle contrast is useful in evaluating the induction and characteristics of liver cancer, determining appropriate size of liver cancer for testing, and confirming therapeutic response.
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Affiliation(s)
- Sang Bu An
- Department of Radiology, 37995Korea Institute of Radiological and Medical Sciences, Nowon-gu, Seoul, Korea
| | - Kwangmo Yang
- Department of Radiation Oncology, 37995Korea Institute of Radiological and Medical Sciences, Nowon-gu, Seoul, Korea
| | - Chang Won Kim
- Department of Radiology, School of Medicine and Biomedical Research Institute, 220312Pusan National University, Pusan National University Hospital, Busan, Korea
| | - Si Ho Choi
- Research Center, 222204Dongnam Institute of Radiological and Medical Sciences, Busan, Korea
| | - Eunji Kim
- Department of Radiation Oncology, 37995Korea Institute of Radiological and Medical Sciences, Nowon-gu, Seoul, Korea
| | - Sung Dae Kim
- Research Center, 222204Dongnam Institute of Radiological and Medical Sciences, Busan, Korea
| | - Jae Soo Koh
- Department of Pathology, 37995Korea Institute of Radiological and Medical Sciences, Nowon-gu, Seoul, Korea
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14
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Kim SD, Baik JS, Lee JH, Mun SW, Yi JM, Park MT. The malignancy of liver cancer cells is increased by IL-4/ERK/AKT signaling axis activity triggered by irradiated endothelial cells. J Radiat Res 2020; 61:376-387. [PMID: 32100006 PMCID: PMC7299255 DOI: 10.1093/jrr/rraa002] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 12/30/2019] [Accepted: 01/27/2020] [Indexed: 05/08/2023]
Abstract
The malignant traits involved in tumor relapse, metastasis and the expansion of cancer stem-like cells are acquired via the epithelial-mesenchymal transition (EMT) process in the tumor microenvironment. In addition, the tumor microenvironment strongly supports the survival and growth of malignant tumor cells and further contributes to the reduced efficacy of anticancer therapy. Ionizing radiation can influence the tumor microenvironment, because it alters the biological functions of endothelial cells composing tumor vascular systems. However, to date, studies on the pivotal role of these endothelial cells in mediating the malignancy of cancer cells in the irradiated tumor microenvironment are rare. We previously evaluated the effects of irradiated endothelial cells on the malignant traits of human liver cancer cells and reported that endothelial cells irradiated with 2 Gy reinforce the malignant properties of these cancer cells. In this study, we investigated the signaling mechanisms underlying these events. We revealed that the increased expression level of IL-4 in endothelial cells irradiated with 2 Gy eventually led to enhanced migration and invasion of cancer cells and further expansion of cancer stem-like cells. In addition, this increased level of IL-4 activated the ERK and AKT signaling pathways to reinforce these events in cancer cells. Taken together, our data indicate that ionizing radiation may indirectly modulate malignancy by affecting endothelial cells in the tumor microenvironment. Importantly, these indirect effects on malignancy are thought to offer valuable clues or targets for overcoming the tumor recurrence after radiotherapy.
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Affiliation(s)
- Sung Dae Kim
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, Republic of Korea
| | - Ji Sue Baik
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, Republic of Korea
| | - Jae-Hye Lee
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, Republic of Korea
| | - Seo-Won Mun
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, Republic of Korea
| | - Joo Mi Yi
- Department of Microbiology and Immunology, College of Medicine, Inje University, Busan, Republic of Korea
| | - Moon-Taek Park
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, Republic of Korea
- Corresponding author. Dongnam Institute of Radiological & Medical Sciences (DIRAMS), 40 Jwadong-gil, Jangan-eup, Gijang-gun, Busan 46033, Republic of Korea. Tel: +82-51-720-5141; Fax: +82-51-720-5929;
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15
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Abstract
The tumor microenvironment is closely associated with tumor malignancy, and includes tumor relapse and metastasis trigged by epithelial-mesenchymal transition (EMT), which leads to the expansion of cancer stem-like cells. Radiotherapy is known to acutely and persistently affect changes in this tumor microenvironment by altering the vascular functions of tumor endothelial cells. However, the precise role of endothelial cells in tumor malignancy following treatment with irradiation has not been completely elucidated. The present study investigated the differences in malignant behavior of liver cancer cells in response to irradiated endothelial cells. To achieve this, a co-cultivation system was established to identify the potential role of endothelial cells in malignant liver cancer cells using medium conditioned with endothelial cells. It was observed that the medium conditioned by endothelial cells when irradiated with a single dose (2 Gy), greatly increased the migratory and invasive properties of liver cancer cells, as well as inducing mesenchymal markers, and enhancing the sphere-forming ability of liver cancer cells, The mRNA levels of genes regulating the self-renewal of cancer stem cells were increased in liver cancer cells by treatment with medium conditioned with endothelial cells. However, neither the medium conditioned by endothelial cells irradiated with fractionated doses (2 Gy × 3; 2 Gy/day for 3 days) or with a single dose (6 Gy) greatly influenced the malignancy of liver cancer cells. In conclusion, the data obtained by the present study indicated that 2 Gy irradiation of endothelial cells influenced the increase in tumor malignancy in liver cancer cells. Furthermore, the distinct differences in the indirect effects of ionizing radiation on tumor malignancy may provide valuable information for the improvement in the efficacy of radiotherapy.
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Affiliation(s)
- Sung Dae Kim
- Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 46033, Republic of Korea
| | - Joo Mi Yi
- Department of Microbiology and Immunology, College of Medicine, Inje University, Busan 47392, Republic of Korea
| | - Moon-Taek Park
- Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 46033, Republic of Korea
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Ko KJ, Kim YH, Kwon KH, Kim MH, Jun KW, Hwang JK, Kim SD, Park SC, Kim JI, Yun SS, Moon IS. Kidney Transplantation Using Expanded-Criteria Deceased Donors: A Comparison With Ideal Deceased Donors and Non-Expanded-Criteria Deceased Donors. Transplant Proc 2018; 50:3222-3227. [PMID: 30577189 DOI: 10.1016/j.transproceed.2018.05.028] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Revised: 05/09/2018] [Accepted: 05/23/2018] [Indexed: 12/31/2022]
Abstract
PURPOSE The use of expanded-criteria deceased-donor (ECD) kidneys must be evaluated within the objective perspective of critical organ shortage and graft function and survival. In this study, we aimed to compare the clinical outcomes of ECD reliance with concurrent use of ideal-criteria deceased donors (IDDs) and non-ECDs in adult renal transplantation. METHODS Between February 2000 and December 2015, we analyzed 405 deceased-donor renal transplants, specifically 129 grafts (31.9%) from ECDs, 233 grafts (57.5%) from non-ECDs, and 43 grafts (10.6%) from IDDs. ECDs were classified according to the United Network for Organ Sharing guidelines, while an IDD was defined as a younger person (10-39 years of age) with no medical risk factors who died from a traumatic head injury. Donor and recipient risk factors were separately analyzed and correlated with recipient graft function, and survival was evaluated. RESULTS ECDs were older (56.8 ± 6.3 years); showed increased incidence of hypertension, diabetes, and cerebrovascular brain death; and had a higher pre-retrieval serum creatinine level than the other groups. ECD kidney recipients were also older (50.6 ± 9.8 years), had a shorter waiting time (P = .031), and demonstrated a low frequency of re-transplantation (P = .028). Long-term renal function followed longitudinally was lower in ECD kidney recipients until five years after transplantation, while the glomerular filtration rate (GFR) level at 7 and 10 years did not differ significantly among the groups (P = .074 and .262, respectively). There were no significant differences in terms of graft survival (P = .394) or patient survival (P = .737) among the groups. CONCLUSIONS Although the long-term renal function followed longitudinally was lower in ECD kidney recipients, the use of renal grafts from ECDs is an acceptable method to resolve the disparity of critical organ shortage. However, the classification of the high-risk group should be updated with consideration given to differences in regional characteristics.
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Affiliation(s)
- K J Ko
- Department of Surgery, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - Y H Kim
- Department of Surgery, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - K H Kwon
- Department of Surgery, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - M H Kim
- Department of Surgery, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - K W Jun
- Department of Surgery, Bucheon St. Mary's Hospital, Gyeonggi, Republic of Korea
| | - J K Hwang
- Department of Surgery, Daejeon St. Mary's Hospital, Daejeon, Republic of Korea.
| | - S D Kim
- Department of Surgery, Incheon St. Mary's Hospital, Incheon, Republic of Korea
| | - S C Park
- Department of Surgery, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - J I Kim
- Department of Surgery, Uijeongbu St. Mary's Hospital, Gyeonggi, Republic of Korea
| | - S S Yun
- Department of Surgery, Seoul St. Mary's Hospital, Seoul, Republic of Korea
| | - I S Moon
- Department of Surgery, Yeouido St. Mary's Hospital, The Catholic University of Korea, Seoul, Republic of Korea
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Bhuiyan MSA, Kim HJ, Lee DH, Lee SH, Cho SH, Yang BS, Kim SD, Lee SH. Genetic parameters of carcass and meat quality traits in different muscles (longissimus dorsi and semimembranosus) of Hanwoo (Korean cattle). J Anim Sci 2018; 95:3359-3369. [PMID: 28805895 DOI: 10.2527/jas.2017.1493] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
We estimated heritability () and genetic and phenotypic correlations for carcass and meat quality traits of longissimus dorsi (LD) and semimembranosus (SM) muscles in 30-mo-old Hanwoo steers. Variance and covariance components were estimated using REML procedures under univariate and bivariate models. The mean carcass weight (CWT), eye muscle area (EMA), back fat thickness (BFT), and marbling score (MS) were 428.20 ± 46.30 kg, 87.38 ± 8.54 cm2, 13.00 ± 5.14 mm, and 5.21 ± 1.56, respectively. The mean CIE reflectance of meat lightness (L*), redness (a*), and yellowness (b*) were 40.01 ± 2.73, 22.37 ± 2.18, and 10.35 ± 1.46, respectively, in LD muscles and 36.33 ± 2.44, 22.91 ± 2.43, and 10.25 ± 1.65, respectively, in SM muscles. The mean Warner-Bratzler shear force (WBSF), intramuscular fat content (IMF), water-holding capacity (WHC), and protein and ash content in LD and SM muscles were 3.84 ± 0.96 and 6.52 ± 1.21 kg, 15.91 ± 4.39 and 5.10 ± 1.94%, 62.07 ± 3.38 and 71.61 ± 2.06%, 20.01 ± 1.39 and 21.34 ± 0.89%, and 0.80 ± 0.10 and 0.93 ± 0.07, respectively. The estimates of CWT, EMA, BFT, and MS were 0.51 ± 0.13, 0.45 ± 0.13, 0.29 ± 0.09, and 0.22 ± 0.08, respectively. The estimates were moderate for meat quality traits and were 0.37 ± 0.12, 0.40 ± 0.12, 0.33 ± 0.10, 0.33 ± 0.10, 0.30 ± 0.11, and 0.24 ± 0.09 for L*, WBSF, IMF, WHC, and protein and ash content, respectively, in LD muscle; estimates from SM muscle were comparatively low (0.08 ± 0.06 to 0.25 ± 0.09). Estimates of for a* and b* were also low (0.08 ± 0.06 to 0.13 ± 0.07). Carcass weight had a moderate, positive genetic correlation with EMA (0.60 ± 0.13) and a weak correlation with MS and BFT. The genetic correlations among the 3 colorimeter variants were strong and positive within and between muscles. Intramuscular fat content had moderate to strong and negative genetic correlations with WBSF (-0.49 ± 0.18), WHC (-0.99 ± 0.01), and protein (-0.93 ± 0.04) and ash content (-0.98 ± 0.06) in LD muscle, whereas the associations were less pronounced in SM muscle. In general, CWT and EMA had low genetic and phenotypic correlations with meat quality traits, which suggests that the traits are independent and have distinct genetic contributions in each muscle. Conversely, with few exceptions, meat quality traits had genetic and phenotypic correlations with MS and BFT. In conclusion, the estimated genetic parameters for carcass and meat quality traits could be used for genetic evaluation and breeding programs in Korean Hanwoo cattle populations.
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18
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Kim SD, Cho KJ, Kim JC. Expression of cannabinoid 1 and, 2 receptors and the effects of cannabinoid 1 and, 2 receptor agonists on detrusor overactivity associated with bladder outlet obstruction in rats. BMC Urol 2017; 17:121. [PMID: 29284441 PMCID: PMC5747270 DOI: 10.1186/s12894-017-0313-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 09/03/2017] [Accepted: 12/20/2017] [Indexed: 12/21/2022] Open
Abstract
Background This study investigated changes in the expression of cannabinoid (CB) receptors and the effects of CB1 and CB2 agonists on detrusor overactivity (DO) associated with bladder outlet obstruction (BOO) in rats. Methods Male Sprague Dawley rats were randomly assigned to four groups (n = 10) in each group. The control group comprised sham-operated rats. A animals in the BOO, CB1 agonist and CB2 agonist groups all underwent BOO surgery. Three weeks postoperatively, cystometrography (CMG) was performed on all rats. After confirming the presence of DO in the CB1 and CB2 agonist groups, a CB1 agonist (WIN 55,212–2) and a CB2 agonist (CB65) were instilled intravesically, and CMG was repeated. CMG parameters, including the contraction interval (CI) and contraction pressure (CP) were then analyzed. The bladders of rats in all four groups were excised following CMG. Immunofluorescence staining and Western blotting were performed to localize CB1 and CB2 and measure their expression levels in the urothelium and detrusor muscle. Results The CI was significantly longer and the CP was significantly lower in the CB1 agonist group than in the BOO group. CI and CP in the CB2 agonist group showed the same results. CB1 receptor immunofluorescence staining signals and immunoreactive bands in Western blotting were increased in the BOO group compared with results in the control group. Similarly, results for the CB2 receptor were also increased in the BOO group, although this difference was not significant. The CMG parameters in the BOO group were significantly improved by the inhibitory effects of CB1 and CB2 agonists on BOO-associated DO. The expression of CB1 was significantly increased in the urothelium and detrusor muscle in BOO-associated DO, but no significant change in CB2 expression was observed. Conclusions CB1 and CB2 receptors, especially CB1, play a role in the pathophysiology of BOO-associated DO, and could serve as therapeutic targets.
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Affiliation(s)
- Sung Dae Kim
- Department of Urology, Graduate School of Medicine, Jeju National University, Jeju, South Korea
| | - Kang Jun Cho
- Department of Urology, Bucheon St. Mary's hospital, College of Medicine, The Catholic University of Korea, Sosa-Ro 327, Wonmi-gu, Bucheon-si, Gyeonggi-do, Seoul, 14647, South Korea
| | - Joon Chul Kim
- Department of Urology, Bucheon St. Mary's hospital, College of Medicine, The Catholic University of Korea, Sosa-Ro 327, Wonmi-gu, Bucheon-si, Gyeonggi-do, Seoul, 14647, South Korea.
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Lee EK, Chung KW, Kim YR, Ha S, Kim SD, Kim DH, Jung KJ, Lee B, Im E, Yu BP, Chung HY. Small RNAs induce the activation of the pro-inflammatory TLR7 signaling pathway in aged rat kidney. Aging Cell 2017; 16:1026-1034. [PMID: 28665028 PMCID: PMC5595700 DOI: 10.1111/acel.12629] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2017] [Indexed: 01/04/2023] Open
Abstract
We have recently reported that TLR-related genes, including TLR7, are upregulated during aging. However, the role of TLR7 and its endogenous ligand in inflammation related to aging is not well defined. Here, we established that small RNAs trigger age-related renal inflammation via TLR7 signaling pathway. We first investigated the expression changes of nine different TLRs in kidney of 6-month-old young rats and 20-month-old aged rats. The results revealed that the expression of TLR7 was the highest among nine TLRs in kidney of old rats compared to the young aged rats. Next, to assess the role of cellular RNA as a TLR7 ligand, we treated a renal tubular epithelial cell line with total RNA isolated from the kidney of young and old rats. The results showed that RNA isolated from old rats showed higher expression of TLR7, IL1β, and TNFα compared to that from young rats. Furthermore, RNA isolated from old rats induced IKKα/β/JNK/NF-κB activation. To identify RNA that activates TLR7, we isolated small and large RNAs from old rat kidney and found that small RNAs increased TLR7 expression in cells. Finally, to investigate the local inflammatory response by small RNA, C57B/L6 mice were intraperitoneally injected with small RNAs isolated from young and old rats; thereby, RNA isolated from old rats induced higher inflammatory responses. Our study demonstrates that renal small RNAs from aged rats induce pro-inflammatory processes via the activation of the TLR7/IKKα/β/JNK/NF-κB signaling pathway, and highlights its causative role as a possible therapeutic target in age-related chronic renal inflammation.
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Affiliation(s)
- Eun Kyeong Lee
- Molecular Inflammation Research Center for Aging Intervention (MRCA); College of Pharmacy; Pusan National University; Busan 46241 Korea
| | - Ki Wung Chung
- Molecular Inflammation Research Center for Aging Intervention (MRCA); College of Pharmacy; Pusan National University; Busan 46241 Korea
| | - Ye Ra Kim
- Molecular Inflammation Research Center for Aging Intervention (MRCA); College of Pharmacy; Pusan National University; Busan 46241 Korea
| | - Sugyeong Ha
- Molecular Inflammation Research Center for Aging Intervention (MRCA); College of Pharmacy; Pusan National University; Busan 46241 Korea
| | - Sung Dae Kim
- Research Center; Dongnam Institute of Radiological & Medical Sciences; Busan Korea
| | - Dae Hyun Kim
- Molecular Inflammation Research Center for Aging Intervention (MRCA); College of Pharmacy; Pusan National University; Busan 46241 Korea
| | - Kyung Jin Jung
- Pathological and Analytical Center; Korea Institute of Toxicology; 141 Gajeong-ro, Yuseong-gu Daejeon 34114 Korea
| | - Bonggi Lee
- Molecular Inflammation Research Center for Aging Intervention (MRCA); College of Pharmacy; Pusan National University; Busan 46241 Korea
- Korean Medicine (KM)-Application Center; Korea Institute of Oriental Medicine (KIOM); Daegu 41062 Korea
| | - Eunok Im
- Molecular Inflammation Research Center for Aging Intervention (MRCA); College of Pharmacy; Pusan National University; Busan 46241 Korea
| | - Byung Pal Yu
- Department of Physiology; The University of Texas Health Science Center at San Antonio; San Antonio TX 78229-3900 USA
| | - Hae Young Chung
- Molecular Inflammation Research Center for Aging Intervention (MRCA); College of Pharmacy; Pusan National University; Busan 46241 Korea
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20
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Kim JH, Shim JW, Eum DY, Kim SD, Choi SH, Yang K, Heo K, Park MT. Downregulation of UHRF1 increases tumor malignancy by activating the CXCR4/AKT-JNK/IL-6/Snail signaling axis in hepatocellular carcinoma cells. Sci Rep 2017; 7:2798. [PMID: 28584306 PMCID: PMC5459852 DOI: 10.1038/s41598-017-02935-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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: 11/25/2016] [Accepted: 04/20/2017] [Indexed: 12/19/2022] Open
Abstract
UHRF1 (ubiquitin-like, with PHD and RING finger domains 1) plays a crucial role in DNA methylation, chromatin remodeling and gene expression and is aberrantly upregulated in various types of human cancers. However, the precise role of UHRF1 in cancer remains controversial. In this study, we observed that hypoxia-induced downregulation of UHRF1 contributes to the induction of the epithelial-mesenchymal transition (EMT) in hepatocellular carcinoma cells. By negatively modulating UHRF1 expression, we further showed that UHRF1 deficiency in itself is sufficient to increase the migratory and invasive properties of cells via inducing EMT, increasing the tumorigenic capacity of cells and leading to the expansion of cancer stem-like cells. Epigenetic changes caused by UHRF1 deficiency triggered the upregulation of CXCR4, thereby activating AKT and JNK to increase the expression and secretion of IL-6. In addition, IL-6 readily activated the JAK/STAT3/Snail signaling axis, which subsequently contributed to UHRF1 deficiency-induced EMT. Our results collectively demonstrate that UHRF1 deficiency may play a pivotal role in the malignant alteration of cancer cells.
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Affiliation(s)
- Ji-Hyun Kim
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea
| | - Jae-Woong Shim
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea
| | - Da-Young Eum
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea
| | - Sung Dae Kim
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea
| | - Si Ho Choi
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea
| | - Kwangmo Yang
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea
| | - Kyu Heo
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea.
| | - Moon-Taek Park
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Busan, 46033, Republic of Korea.
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21
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Han JY, Han YK, Park GY, Kim SD, Lee CG. Corrigendum: Bub1 is required for maintaining cancer stem cells in breast cancer cell lines. Sci Rep 2016; 6:33106. [PMID: 27834944 PMCID: PMC5105682 DOI: 10.1038/srep33106] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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22
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Huh JS, Kim BS, Kim YJ, Kim SD, Park KK. The Practicality of Targeted Prostate Biopsy Procedures on the Dominant Side of the Tumor Determined by Magnetic Resonance Imaging in Elderly Patients with High Serum Levels of Prostate-Specific Antigen. World J Mens Health 2016; 33:188-93. [PMID: 26770939 PMCID: PMC4709435 DOI: 10.5534/wjmh.2015.33.3.188] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2015] [Revised: 06/14/2015] [Accepted: 06/17/2015] [Indexed: 11/15/2022] Open
Abstract
PURPOSE To examine the possibility of reducing the number of cores per prostate biopsy in elderly patients with high levels of prostate-specific antigen (PSA) without significantly lowering the detection rate of prostate cancer. MATERIALS AND METHODS Two hundreds sixteen men with PSA levels >20 ng/mL who underwent prostate biopsies from May 2009 to April 2013 were retrospectively reviewed. With the help of magnetic resonance imaging (MRI), the laterality of the dominant tumor burden in patients was determined. The results of targeted biopsies were compared with those of conventional biopsy procedures. RESULTS The mean age and PSA level were 79.5 years and 81.3 ng/mL, respectively, and the overall diagnostic rate of sextant biopsies was 81.9% (177/216). MRI was able to show the tumor burden in 189 of the 216 patients. The detection rate of transrectal ultrasonography (TRUS)-guided targeted biopsies was 87.3% (165/189). Detection rates were comparable with conventional biopsies (81.9% [177/216]) (p=0.23). Of the 177 men in whom the results of the sextant biopsy were positive, 12 men (6.8%) with PSA levels <29 ng/mL did not have any cancer cells according to targeted biopsies. However, all other patients were diagnosed with prostate cancer using the abovementioned techniques. CONCLUSIONS We believe that TRUS-guided targeted biopsies of the prostate in elderly men with high PSA levels could reduce the number of unnecessary cores per biopsy. However, a risk of detection loss remains. Therefore, we recommend that at least a sextant biopsy should be performed, even in elderly patients, in order to detect prostate cancer.
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Affiliation(s)
- Jung Sik Huh
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
| | - Bong Soo Kim
- Department of Radiology, Jeju National University School of Medicine, Jeju, Korea
| | - Young Joo Kim
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
| | - Sung Dae Kim
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
| | - Kyung Kgi Park
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
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23
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Han JY, Han YK, Park GY, Kim SD, Kim JS, Jo WS, Lee CG. Corrigendum: Bub1 is required for maintaining cancer stem cells in breast cancer cell lines. Sci Rep 2016; 6:17984. [PMID: 26732412 PMCID: PMC4702142 DOI: 10.1038/srep17984] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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24
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Jeong SK, Kim JS, Lee CG, Park YS, Kim SD, Yoon SO, Han DH, Lee KY, Jeong MH, Jo WS. Tumor associated macrophages provide the survival resistance of tumor cells to hypoxic microenvironmental condition through IL-6 receptor-mediated signals. Immunobiology 2015; 222:55-65. [PMID: 26705936 DOI: 10.1016/j.imbio.2015.11.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [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: 04/16/2015] [Revised: 10/23/2015] [Accepted: 11/22/2015] [Indexed: 01/05/2023]
Abstract
Hypoxia and infiltration of tumor-associated macrophages (TAM) are intrinsic features of the tumor microenvironment. Tumor cells that remain viable in hypoxic conditions often possess an increased survival potential and tend to grow aggressively. TAM also respond to a variety of signals in the hypoxic tumor microenvironment and express a more M2-like phenotype. In this study, the established mouse tumor tissues showed a dense infiltration of CD206+ macrophages at the junctions between the normoxic and hypoxic regions and an increased IL-6 receptor (IL-6R) expression of tumor cells in the areas of CD206+ TAM accumulation, which indicates a role of M2 phenotype TAM in survival adaptation of tumor cells preparing for an impending hypoxic injury before changes in oxygen availability. Cocultured mouse FM3A or human MCF-7 tumor cells with tumor infiltrating macrophages isolated from mouse tumor tissues and M2-polarized macrophages generated from human THP-1 cells, respectively, showed significantly decreased rate of cell death in cultures exposed to hypoxia. The acquisition of survival resistance was attributed to increased IL-6 production by M2 TAM and increased expression of IL-6R in tumor cells in the coculture system. MCF-7 cells cocultured with M2 TAM showed activated JAK1/STAT3 and Raf/MEK/JNK pathways contributing to tyrosine and serine phophorylation of STAT3, respectively. However, only tyrosine phosphorylated STAT3 was detected in the nucleus, which induced upregulation of Bcl-2 and downregulation of Bax and Bak. Finally, knockdown of IL-6R by small interfering RNA significantly counteracted coculture-induced signals and completely abolished the survival resistance to hypoxic injury. Thus, we present evidence for the role of M2 phenotype TAM in IL-6 receptor-mediated signals, particularly tyrosine phosphorylation of STAT3, responsible for the prosurvival adaptation of tumor cells to hypoxia.
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Affiliation(s)
- Soo Kyung Jeong
- Department of Research Center, Dong Nam Institute of Radiological and Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan 619-953, Republic of Korea; Department of Microbiology, Dong-A University College of Medicine, Daeshingongwon-gil 32, Seo-gu, Busan 602-714, Republic of Korea
| | - Joong Sun Kim
- Department of Research Center, Dong Nam Institute of Radiological and Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan 619-953, Republic of Korea
| | - Chang Geun Lee
- Department of Research Center, Dong Nam Institute of Radiological and Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan 619-953, Republic of Korea
| | - You-Soo Park
- Department of Research Center, Dong Nam Institute of Radiological and Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan 619-953, Republic of Korea
| | - Sung Dae Kim
- Department of Research Center, Dong Nam Institute of Radiological and Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan 619-953, Republic of Korea
| | - Sun Ok Yoon
- Transplantation Research Institute, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 110-799, Republic of Korea
| | - Dong Hoon Han
- Department of Microbiology, Dong-A University College of Medicine, Daeshingongwon-gil 32, Seo-gu, Busan 602-714, Republic of Korea
| | - Kyu Yeol Lee
- Department of Microbiology, Dong-A University College of Medicine, Daeshingongwon-gil 32, Seo-gu, Busan 602-714, Republic of Korea
| | - Min Ho Jeong
- Department of Microbiology, Dong-A University College of Medicine, Daeshingongwon-gil 32, Seo-gu, Busan 602-714, Republic of Korea.
| | - Wol Soon Jo
- Department of Research Center, Dong Nam Institute of Radiological and Medical Sciences, Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan 619-953, Republic of Korea.
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25
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Han JY, Han YK, Park GY, Kim SD, Lee CG. Bub1 is required for maintaining cancer stem cells in breast cancer cell lines. Sci Rep 2015; 5:15993. [PMID: 26522589 PMCID: PMC4629164 DOI: 10.1038/srep15993] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [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: 05/28/2015] [Accepted: 10/06/2015] [Indexed: 12/15/2022] Open
Abstract
Breast cancer is a leading cause of death among women worldwide due to therapeutic resistance and cancer recurrence. Cancer stem cells are believed to be responsible for resistance and recurrence. Many efforts to overcome resistance and recurrence by regulating cancer stem cells are ongoing. Bub1 (Budding uninhibited by benzimidazoles 1) is a mitotic checkpoint serine/threonine kinase that plays an important role in chromosome segregation. Bub1 expression is correlated with a poor clinical prognosis in patients with breast cancer. We identified that depleting Bub1 using shRNAs reduces cancer stem cell potential of the MDA-MB-231 breast cancer cell line, resulting in inhibited formation of xenografts in immunocompromised mice. These results suggest that Bub1 may be associated with cancer stem cell potential and could be a target for developing anti-breast cancer stem cell therapies.
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Affiliation(s)
- Jeong Yoon Han
- Research Center, Dongnam Institute of Radiological &Medical Sciences, Busan 619-953, ROK
| | - Yu Kyeong Han
- Research Center, Dongnam Institute of Radiological &Medical Sciences, Busan 619-953, ROK.,Research Center, Dongnam Institute of Radiological &Medical Sciences, Busan 619-953, ROK
| | - Ga-Young Park
- Research Center, Dongnam Institute of Radiological &Medical Sciences, Busan 619-953, ROK.,Department of Molecular Biology, College of Natural Sciences, Pusan National University, Busan 609-735, ROK
| | - Sung Dae Kim
- Research Center, Dongnam Institute of Radiological &Medical Sciences, Busan 619-953, ROK
| | - Chang Geun Lee
- Research Center, Dongnam Institute of Radiological &Medical Sciences, Busan 619-953, ROK
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26
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Son Y, Heo K, Bae MJ, Lee CG, Cho WS, Kim SD, Yang K, Shin IS, Lee MY, Kim JS. Injury to the blood-testis barrier after low-dose-rate chronic radiation exposure in mice. Radiat Prot Dosimetry 2015; 167:316-320. [PMID: 25948832 DOI: 10.1093/rpd/ncv270] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Exposure to ionising radiation induces male infertility, accompanied by increasing permeability of the blood-testis barrier. However, the effect on male fertility by low-dose-rate chronic radiation has not been investigated. In this study, the effects of low-dose-rate chronic radiation on male mice were investigated by measuring the levels of tight-junction-associated proteins (ZO-1 and occludin-1), Niemann-Pick disease type 2 protein (NPC-2) and antisperm antibody (AsAb) in serum. BALB/c mice were exposed to low-dose-rate radiation (3.49 mGy h(-1)) for total exposures of 0.02 (6 h), 0.17 (2 d) and 1.7 Gy (21 d). Based on histological examination, the diameter and epithelial depth of seminiferous tubules were significantly decreased in 1.7-Gy-irradiated mice. Compared with those of the non-irradiated group, 1.7-Gy-irradiated mice showed significantly decreased ZO-1, occludin-1 and NPC-2 protein levels, accompanied with increased serum AsAb levels. These results suggest potential blood-testis barrier injury and immune infertility in male mice exposed to low-dose-rate chronic radiation.
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Affiliation(s)
- Y Son
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Jwadong-gil 40, Gijang-gun, Busan 619-953, South Korea
| | - K Heo
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Jwadong-gil 40, Gijang-gun, Busan 619-953, South Korea
| | - M J Bae
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Jwadong-gil 40, Gijang-gun, Busan 619-953, South Korea
| | - C G Lee
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Jwadong-gil 40, Gijang-gun, Busan 619-953, South Korea
| | - W S Cho
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Jwadong-gil 40, Gijang-gun, Busan 619-953, South Korea
| | - S D Kim
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Jwadong-gil 40, Gijang-gun, Busan 619-953, South Korea
| | - K Yang
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Jwadong-gil 40, Gijang-gun, Busan 619-953, South Korea
| | - I S Shin
- College of Veterinary Medicine, Chonnam National University, Gwangju, South Korea
| | - M Y Lee
- College of Pharmacy, Kyungpook National University, Daegu, South Korea
| | - J S Kim
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Jwadong-gil 40, Gijang-gun, Busan 619-953, South Korea College of Veterinary Medicine, Chonnam National University, Gwangju, South Korea
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27
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Park KK, Hyun CL, Kim SD, Kim YJ, Huh JS. The Testis Completely Replaced by a Huge Epidermal Cyst in an Older Man. World J Mens Health 2015; 33:117-20. [PMID: 26331129 PMCID: PMC4550594 DOI: 10.5534/wjmh.2015.33.2.117] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2015] [Revised: 03/07/2015] [Accepted: 04/09/2015] [Indexed: 11/15/2022] Open
Abstract
Epidermal cysts are commonly encountered, slow-growing superficial cysts in the hair-bearing areas of the body, and are usually discovered in the second and fourth decades of life. These cysts tend to be superficial, meaning that they can be easily found by ultrasound and digital palpation at a moderate degree of growth. However, we found a huge testicular cyst that went undetected until old age. In this report, we describe the interesting case of a patient in whom the right testis was totally replaced with an epidermal cyst. The cyst was found by ultrasonography and further evaluated with magnetic resonance imaging. We performed orchiectomy under the impression of an epidermal cyst. The pathologic report confirmed this clinical impression. Over 24 months of follow-up, we did not find any recurrence of a growing mass on the testis.
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Affiliation(s)
- Kyung Kgi Park
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
| | - Chang Lim Hyun
- Department of Pathology, Jeju National University School of Medicine, Jeju, Korea
| | - Sung Dae Kim
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
| | - Young Joo Kim
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
| | - Jung Sik Huh
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
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28
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Saba E, Jeon BR, Jeong DH, Lee K, Goo YK, Kim SH, Sung CK, Roh SS, Kim SD, Kim HK, Rhee MH. Black ginseng extract ameliorates hypercholesterolemia in rats. J Ginseng Res 2015; 40:160-8. [PMID: 27158237 PMCID: PMC4845044 DOI: 10.1016/j.jgr.2015.07.003] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2015] [Revised: 06/29/2015] [Accepted: 07/06/2015] [Indexed: 01/23/2023] Open
Abstract
Background Ginseng (Panax ginseng Meyer) is a well-characterized medicinal herb listed in the classic oriental herbal dictionary as “Shin-nong-bon-cho-kyung.” Ginseng has diverse pharmacologic and therapeutic properties. Black ginseng (BG, Ginseng Radix nigra) is produced by repeatedly steaming fresh ginseng nine times. Studies of BG have shown that prolonged heat treatment enhances the antioxidant activity with increased radical scavenging activity. Several recent studies have showed the effects of BG on increased lipid profiles in mice. In this study report the effects of water and ethanol extracts of BG on hypercholesterolemia in rats. To our knowledge, this is the first time such an effect has been reported. Methods Experiments were conducted on male Sprague Dawley rats fed with a high-cholesterol diet supplemented with the water and ethanol extracts of BG (200 mg/kg). Their blood cholesterol levels, serum white blood cell levels, and cholesterol-metabolizing marker genes messenger RNA (mRNA) expression were determined. Liver and adipose tissues were histologically analyzed. Results We found that BG extracts efficiently reduced the total serum cholesterol levels, low-density lipoprotein (LDL) levels with increased food efficiency ratio and increased number of neutrophil cells. It also attenuated the key genes responsible for lipogenesis, that is, acetyl-coenzyme A (CoA) acetyltransferase 2, 3-hydroxy-3-methyl-glutaryl-CoA reductase, and sterol regulatory element-binding protein 2, at the mRNA level inside liver cells. Furthermore, the BG extract also reduced the accumulation of fat in adipose tissues, and inhibited the neutral fat content in liver cells stained with hematoxylin and eosin and oil red O. Conclusion Administration of BG extracts to Sprague Dawley rats fed with high-cholesterol diet ameliorated hypercholesterolemia, which was mediated via modulation of cholesterol-metabolizing marker genes. This data throw a light on BG's cardioprotective effects.
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Affiliation(s)
- Evelyn Saba
- Laboratory of Veterinary Physiology and Cell Signaling, Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
| | - Bo Ra Jeon
- Laboratory of Veterinary Physiology and Cell Signaling, Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
| | - Da-Hye Jeong
- Laboratory of Veterinary Physiology and Cell Signaling, Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
| | - Kija Lee
- Laboratory of Medical Imaging, Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
| | - Youn-Kyoung Goo
- Department of Parasitology and Tropical Medicine, Kyungpook National University School of Medicine, Daegu, Korea
| | - Seung-Hyung Kim
- Institute of Traditional Medicine and Bioscience, Daejeon University, Daejeon, Korea
| | - Chang-Keun Sung
- Daedeok Bio Corporation Research and Development Center, Daejeon, Korea
| | - Seong-Soo Roh
- Department of Herbology, College of Korean Medicine, Daegu Haany University, Daegu, Korea
| | - Sung Dae Kim
- Department of Clinical Research, Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan, Korea
| | - Hyun-Kyoung Kim
- Daedeok Bio Corporation Research and Development Center, Daejeon, Korea
| | - Man-Hee Rhee
- Laboratory of Veterinary Physiology and Cell Signaling, Department of Veterinary Medicine, College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
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29
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Park SJ, Shim JW, Park HS, Eum DY, Park MT, Mi Yi J, Choi SH, Kim SD, Son TG, Lu W, Kim ND, Yang K, Heo K. MacroH2A1 downregulation enhances the stem-like properties of bladder cancer cells by transactivation of Lin28B. Oncogene 2015; 35:1292-301. [PMID: 26028027 PMCID: PMC4791524 DOI: 10.1038/onc.2015.187] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [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: 11/01/2014] [Revised: 04/01/2015] [Accepted: 04/24/2015] [Indexed: 12/18/2022]
Abstract
The histone variant, macroH2A1, has an important role in embryonic stem cell differentiation and tumor progression in various types of tumors. However, the regulatory roles of macroH2A1 on bladder cancer progression have not been fully elucidated. Here, we show that macroH2A1 knockdown promotes stem-like properties of bladder cancer cells. The knockdown of macroH2A1 in bladder cancer cells increased tumorigenicity, radioresistance, degeneration of reactive oxygen species, increased sphere formation capability and an increase in the proportion of side populations. We found that macroH2A1 is required for the suppression of Lin28B identified as a novel downstream target of macroH2A1 in bladder cancer. Loss of macroH2A1 expression significantly correlated with the elevated levels of Lin28B expression and subsequently inhibited the mature let-7 microRNA expression. Furthermore, the stable overexpression of Lin28B enhances the several phenotypes, including tumorigenicity and sphere-forming ability, which are induced by macroH2A1 depletion. Importantly, Lin28B expression was regulated by macroH2A1-mediated reciprocal binding of p300 and EZH2/SUV39H1. Our results suggest that Lin28B/let-7 pathway is tightly regulated by macroH2A1 and its cofactors, and have a pivotal role in the bladder tumor progression and the regulation of stem-like characteristics of bladder cancer cells.
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Affiliation(s)
- S-J Park
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan, Republic of Korea.,Department of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - J W Shim
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan, Republic of Korea
| | - H S Park
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan, Republic of Korea
| | - D-Y Eum
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan, Republic of Korea
| | - M-T Park
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan, Republic of Korea
| | - J Mi Yi
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan, Republic of Korea
| | - S H Choi
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan, Republic of Korea
| | - S D Kim
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan, Republic of Korea
| | - T G Son
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan, Republic of Korea
| | - W Lu
- The Eli and Edythe Broad Center for Regenerative Medicine and Stem Cell Research, Department of Biochemistry and Molecular Biology, University of Southern California, Los Angeles, CA, USA
| | - N D Kim
- Department of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - K Yang
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan, Republic of Korea.,Department of Radiation Oncology, Dongnam Institute of Radiological & Medical Sciences, Busan, Republic of Korea.,Department of Radiation Oncology, Korea Institute of Radiological & Medical Sciences, Seoul, Republic of Korea
| | - K Heo
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan, Republic of Korea
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30
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Kim JS, Son Y, Bae MJ, Lee M, Lee CG, Jo WS, Kim SD, Yang K. Administration of granulocyte colony-stimulating factor with radiotherapy promotes tumor growth by stimulating vascularization in tumor-bearing mice. Oncol Rep 2015; 34:147-54. [PMID: 25976379 DOI: 10.3892/or.2015.3977] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 04/14/2015] [Indexed: 11/06/2022] Open
Abstract
Although granulocyte-colony stimulating factor (G-CSF) is commonly used to support recovery from radiation-induced side-effects, the precise effects of G-CSF on colon cancer under radiotherapy remain poorly understood. In the present study, to investigate the effects of tumor growth following radiotherapy and G-CSF administration in a murine xenograft model of colon cancer, female BALB/c mice were injected with cells of a colon carcinoma cell line (CT26) with irradiation and G-CSF, alone or in combination. Mice received 2 Gy of focal radiation daily for 5 days and intraperitoneal injection of G-CSF (100 µg/kg/day) after irradiation for 7 days. Changes in the levels of myeloperoxidase (MPO), vascular endothelial growth factor (VEGF), matrix metalloproteinase type 9 (MMP-9) and CD31 were assessed in the mouse cancer induced by injection of colon cancer cells. We observed that G-CSF increased the number of circulating neutrophils, but facilitated tumor growth. However, G-CSF treatment did not affect radiation-induced cytotoxicity and cell viability in CT26 cells in vitro. Increased levels of myeloperoxidase, a neutrophil marker and those of vascular endothelial growth factor were observed in tumors with G-CSF supplementation. In addition, we found that increased levels of CD31 and matrix metalloproteinase-9 were correlated with the enhanced tumor growth after G-CSF treatment. Therefore, these data suggest that G-CSF may contribute to tumor growth and decrease the antitumor effect of radiotherapy, possibly by promoting vascularization in cancer lesions.
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Affiliation(s)
- Joong Sun Kim
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Busan 619-953, Republic of Korea
| | - Yeonghoon Son
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Busan 619-953, Republic of Korea
| | - Min Ji Bae
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Busan 619-953, Republic of Korea
| | - Minyoung Lee
- College of Pharmacy, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Chang Geun Lee
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Busan 619-953, Republic of Korea
| | - Wol Soon Jo
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Busan 619-953, Republic of Korea
| | - Sung Dae Kim
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Busan 619-953, Republic of Korea
| | - Kwangmo Yang
- Research Center, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Busan 619-953, Republic of Korea
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Kim SD, Huh JS, Kim YJ, Park KK, Sohn DW, Kim HJ. MP51-15 LARGE PROSTATIC CALCULI MAY WORSEN ERECTILE DYSFUNCTION AND LOWER URINARY TRACT SYMPTOMS IN MIDDLE AGED MEN. J Urol 2015. [DOI: 10.1016/j.juro.2015.02.1752] [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: 11/28/2022]
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Huh JS, Park KK, Kim YJ, Kim SD. Diagnosis of a gastrointestinal stromal tumor presenting as a prostatic mass: a case report. World J Mens Health 2014; 32:184-8. [PMID: 25606568 PMCID: PMC4298822 DOI: 10.5534/wjmh.2014.32.3.184] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [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: 05/28/2014] [Revised: 07/28/2014] [Accepted: 08/05/2014] [Indexed: 11/27/2022] Open
Abstract
Gastrointestinal stromal tumors (GISTs) are an unusual and heterogeneous group of spindle cell tumors that can also appear on the exterior of the gastrointestinal tract (extra-GISTs). Despite the fact that extra-GISTs or large rectal GISTs can lead to the clinical impression of a prostatic mass, these tumors are, in general, excluded in the differential diagnosis of spindle cell tumors observed on prostate needle biopsy. Here, we present, in detail, a case of an extra-GIST identified on prostatic biopsy; the tumor was previously believed to be a primary prostatic stromal sarcoma in the differential diagnosis. Every investigator should check for KIT (CD117) in immunohistochemical staining to rule out an extra-GIST prior to diagnosing a solitary prostatic tumor, specialized prostatic stromal tumor, or leiomyosarcoma on prostate needle biopsy.
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Affiliation(s)
- Jung-Sik Huh
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
| | - Kyung Kgi Park
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
| | - Young Joo Kim
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
| | - Sung Dae Kim
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
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Kim SD, Lee YJ, Baik JS, Han JY, Lee CG, Heo K, Park YS, Kim JS, Ji HD, Park SI, Rhee MH, Yang K. Baicalein inhibits agonist- and tumor cell-induced platelet aggregation while suppressing pulmonary tumor metastasis via cAMP-mediated VASP phosphorylation along with impaired MAPKs and PI3K-Akt activation. Biochem Pharmacol 2014; 92:251-65. [PMID: 25268843 DOI: 10.1016/j.bcp.2014.09.019] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 09/20/2014] [Accepted: 09/22/2014] [Indexed: 01/09/2023]
Abstract
Recently, the importance of platelet activation in cancer metastasis has become generally accepted. As a result, the development of new platelet inhibitors with minimal adverse effects is now a promising area of targeted cancer therapy. Baicalein is a functional ingredient derived from the root of Scutellaria baicalensis Georgi, a plant used intraditional medicine. The pharmacological effects of this compound including anti-oxidative and anti-inflammatory activities have already been demonstrated. However, its effects on platelet activation are unknown. We therefore investigated the effects of baicalein on ligand-induced platelet aggregation and pulmonary cancer metastasis. In the present study, baicalein inhibited agonist-induced platelet aggregation, granule secretion markers (P-selectin expression and ATP release), [Ca(2+)]i mobilization, and integrin αIIbβ3 expression. Additionally, baicalein attenuated ERK2, p38, and Akt activation, and enhanced VASP phosphorylation. Indeed, baicalein was shown to directly inhibit PI3K kinase activity. Moreover, baicalein attenuated the platelet aggregation induced by C6 rat glioma tumor cells in vitro and suppressed CT26 colon cancer metastasis in mice. These features indicate that baicalein is a potential therapeutic drug for the prevention of cancer metastasis.
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Affiliation(s)
- Sung Dae Kim
- Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 619-953, Republic of Korea
| | - Young Ji Lee
- Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 619-953, Republic of Korea
| | - Ji Sue Baik
- Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 619-953, Republic of Korea
| | - Joeng Yoon Han
- Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 619-953, Republic of Korea
| | - Chang Geun Lee
- Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 619-953, Republic of Korea
| | - Kyu Heo
- Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 619-953, Republic of Korea
| | - You Soo Park
- Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 619-953, Republic of Korea
| | - Joong Sun Kim
- Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 619-953, Republic of Korea
| | - Hyun Dong Ji
- Laboratory of Veterinary Physiology and Cell Signaling, College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, Republic of Korea
| | - Se Il Park
- Cardiovascular Product Evaluation Center, College of Medicine, Yonsei University, Seoul 120-752, Republic of Korea
| | - Man Hee Rhee
- Laboratory of Veterinary Physiology and Cell Signaling, College of Veterinary Medicine, Kyungpook National University, Daegu 702-701, Republic of Korea.
| | - Kwangmo Yang
- Research Center, Dongnam Institute of Radiological and Medical Sciences, Busan 619-953, Republic of Korea; Department of Radiation Oncology, Dongnam Institute of Radiological and Medical Sciences, Busan 619-953, Republic of Korea; Department of Radiaton Oncology, Korea Institute of Radiological and Medical Sciences, Seoul 139-706, Republic of Korea.
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Hwang JK, Kim JM, Kim YK, Kim SD, Park SC, Kim JI, Nam HW, Kim J, Moon IS. The early protective effect of glutamine pretreatment and ischemia preconditioning in renal ischemia-reperfusion injury of rat. Transplant Proc 2014; 45:3203-8. [PMID: 24182785 DOI: 10.1016/j.transproceed.2013.08.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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: 09/21/2012] [Revised: 07/13/2013] [Accepted: 08/16/2013] [Indexed: 11/20/2022]
Abstract
BACKGROUND Heat shock proteins (HSP) play an important role in protecting cells against stress. METHODS Using a rat model, we tested the hypothesis that pretreatment with glutamine (Gln) and ischemia preconditioning (IPC) increase the expression of HSP resulting in attenuation of renal ischemia/reperfusion (I/R) injury. Sprague-Dawley rats were randomized into 4 groups [group I, Gln injection (+), IPC (+); group II, Gln injection (+), IPC (-); group III, saline injection (+), IPC (+); group IV, saline injection (+), IPC (-)]. Renal HSP70 expression was determined by Western blotting and kidney function was assessed by blood urea nitrogen and serum creatinine. Renal cross-sections were microscopically examined for tubular necrosis, exfoliation of tubular epithelial cells, cast formation, and monocyte infiltration. RESULTS Gln pretreatment increased intrarenal HSP expression (P = .031). In group I, tubulointerstitial abnormalities were clearly slighter compared with the other groups (P < .001). CONCLUSION Our experiments suggest that (1) a single dose of Gln could induce HSP expression and (2) IPC could relieve renal I/R injury. In addition, IPC combined with Gln pretreatment had a synergic protective effect against renal I/R injury.
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Affiliation(s)
- J K Hwang
- Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Hwang JK, Chun HJ, Kim JM, Kwon KH, Kim YK, Kim SD, Park SC, Choi BS, Kim JI, Yang CW, Kim YS, Moon IS. Contrast-enhanced magnetic resonance angiography in the early period after kidney transplantation. Transplant Proc 2014; 45:2925-30. [PMID: 24157005 DOI: 10.1016/j.transproceed.2013.08.039] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Our objective was to evaluate the usefulness of three-dimensional (3-D) contrast-enhanced (CE) magnetic resonance angiography (MRA) to assess renal parenchyma, arterial inflow stenosis, and peritransplant fluid collections in the early period after kidney transplantation (KT). Between January 2010 and April 2011, we examined a consecutive series of 144 renal transplants using 3-D CE MRA at 14 days after KT. MRA showed parenchyma infarctions (n = 17, 11.8%), arterial inflow stenoses (n = 23, 16%), lymphoceles (n = 14, 9.7%), and hematomas (n = 6, 4.2%). The degree of renal transplant artery inflow stenosis was graded qualitatively based on diameter criterion; <50% = mild, 50% to 70% = moderate, and >70% = severe in 10 (6.9%), 5 (3.5%), and 8 (5.6%) subjects, respectively. The study recipients were divided into 3 groups according to the degree of renal artery inflow stenosis (group I: normal; group II: mild and moderate, <70%; group III: severe, >70%). Among group III patients who underwent digital subtraction angiography, 5 had percutaneous transluminal angioplasty or stenting performed after 1 month. Their mean resume creatinine levels at 1, 6, and 12 months after transplantation were not significantly different from those in the other groups (P = .391, .447, .110). The prevalence of graft loss (n = 2) was high in group III (P = .012), although the frequency of acute rejection episodes was not different among the groups (P = .890). The incidences of renal parenchyma infarction, peritransplant fluid collection and arterial inflow stenosis were unexpectedly high in the early period after KT. Thus, 3-D CE MRA provided a rapid global assessment of the renal parenchyma, transplant arterial system, and peritransplant fluid collection that can be helpful to detect or exclude many causes of renal transplant dysfunction.
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Affiliation(s)
- J K Hwang
- Division of Transplantation Surgery, Department of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Yoon BI, Kim HS, Kim SD, Cho KJ, Kim SW, Ha US, Cho YH, Sohn DW. Changes in bacterial species and antibiotic sensitivity in intensive care unit: acquired urinary tract infection during 10 years interval (2001-2011). Urol J 2014; 11:1478-1484. [PMID: 24807764] [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] [Subscribe] [Scholar Register] [Received: 09/02/2012] [Revised: 12/03/2012] [Accepted: 12/16/2012] [Indexed: 06/03/2023]
Abstract
PURPOSE Patients in the intensive care unit (ICU) are usually at greater risk for acquiring urinary tract infections (UTIs). Few studies have focused on UTIs specifically acquired within the ICU. We studied the change in bacterial species causing UTIs in ICU admitted patients in 2001 and 2011. MATERIALS AND METHODS We reviewed the medical records of a total of 2,890 ICU patients who had undergone urine culture in 2001 and 2011 at the Yeouido and Bucheon St. Mary's hospitals. Changes in causative organisms and their antibiotic sensitivity between the years 2001 and 2011 were analyzed. RESULTS Escherichia coli (E. coli) was the most common organism in ICU-acquired UTIs in 2001 and 2011 in our study. The pathogens that significantly increased in 2011 compared to 2001 were Pseudomonas, and Klebsiella species (P < .05). In 2011 gram-negative organisms showed relatively higher sensitivities to amikacin, imipenem, and tazocin (72.0%, 77.5% and 76.1%, respectively), whereas they showed relatively lower sensitivities to third-generation cephalosporins and ciprofloxacin (55.2% and 45.0%, respectively). In 2011 gram-positive organisms showed high sensitivities to teicoplanin and vancomycin (91.1% and 87.9%, respectively), whereas they showed low sensitivities to ampicillin and ciprofloxacin (24.1% and 25.5%, respectively). The antibiotic resistance rate of Pseudomonas species was nearly doubles that of E. coli. CONCLUSION Infections caused by Pseudomonas and Klebsiella species were found to have increased significantly in 2011. Pseudomonas species had a significantly lower susceptibility to antibiotic sensitivity than other identified organisms.
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Affiliation(s)
- Byung Il Yoon
- Department of Urology, International St. Mary's Hospital, Incheon, Korea
| | - Hyo Sin Kim
- Department of Urology, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Korea
| | - Sung Dae Kim
- Department of Urology, School of Medicine, Jeju National University, Jeju, Korea
| | - Kang Jun Cho
- Department of Urology, Bucheon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Bucheon, Korea
| | - Sun Wook Kim
- Department of Urology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - U-Syn Ha
- Department of Urology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yong-Hyun Cho
- Department of Urology, Yeouido St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul,
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Kim SD, Huh JS, Kim YJ. Necrosis of the penis with multiple vessel atherosclerosis. World J Mens Health 2014; 32:66-8. [PMID: 24872955 PMCID: PMC4026237 DOI: 10.5534/wjmh.2014.32.1.66] [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] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Revised: 06/15/2013] [Accepted: 06/18/2013] [Indexed: 11/26/2022] Open
Abstract
Penile necrosis is a very rare complication because of its rich collateral supply. Conservative management is apt to be ineffective; thus penectomy is usually performed. We present a case of penile necrosis and claudication of both legs with multiple atherosclerosis in a type II diabetes mellitus patient who was successfully treated with angioplasty, penoplasty, and additional intracavernous injections of prostaglandin E1. The treatment resulted in relief of the leg pain and healing of the penile ischemic lesions.
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Affiliation(s)
- Sung Dae Kim
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
| | - Jung Sik Huh
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
| | - Young-Joo Kim
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
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Park KK, Kim YJ, Kim SD, Huh JS. The meaning of urinary hesitancy in women with overactive bladder Re: Park KK, Lee SH, Kim YJ, Choi YD, Mah SY: “Association between urinary hesitancy symptoms and uroflowmetry measured urinary hesitancy time in men with lower urinary tract symptoms. Neur. Neurourol Urodyn 2014; 33:469-70. [DOI: 10.1002/nau.22485] [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] [Received: 07/23/2013] [Accepted: 07/26/2013] [Indexed: 11/11/2022]
Affiliation(s)
- Kyung Kgi Park
- Department of Urology; Jeju National University Hospital; Jeju Korea
| | - Young Joo Kim
- Department of Urology; Jeju National University Hospital; Jeju Korea
| | - Sung Dae Kim
- Department of Urology; Jeju National University Hospital; Jeju Korea
| | - Jung Sik Huh
- Department of Urology; Jeju National University Hospital; Jeju Korea
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Park GY, Han JY, Han YK, Kim SD, Kim JS, Jo WS, Chun SH, Jeong DH, Lee CW, Yang K, Lee CG. 14-3-3 eta depletion sensitizes glioblastoma cells to irradiation due to enhanced mitotic cell death. Cancer Gene Ther 2014; 21:158-63. [DOI: 10.1038/cgt.2014.11] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2013] [Revised: 02/10/2014] [Accepted: 02/20/2014] [Indexed: 01/07/2023]
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Abstract
Schwannoma, which may occur in any region of the body, is very rare in the scrotum. Schwannomas are tumors that originate from Schwann cells and, theoretically, could affect any nerve. In spite of the rich innervation of the genital area, these kinds of tumors are not common in the scrotum. A 67-year-old man visited our hospital for investigation of a 2-year episode of multiple slowly growing masses in the scrotum. Testicular tumor markers were within normal range (beta human chorionic gonadotropin <5 mIU, α-fetoprotein : 4.86 ng/ml). Scrotal ultrasonography revealed intrascrotal and extratesticular masses in the mid-scrotal region. Complete excision of the scrotal masses was performed. After surgery there was no testicular invasion. Histological examination of the resected specimen showed them to be schwannomas of the scrotum. We report one case of multiple schwannomas of the scrotum with a review of the literature.
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Affiliation(s)
- Young-Joo Kim
- Department of Urology, Jeju National University Hospital, Jeju National University School of Medicine, Jeju, Korea
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Kamruzzaman SM, Yayeh T, Ji HD, Park JY, Kwon YS, Lee IK, Kim S, Oh SH, Kim SD, Roh SS, Yun BS, Rhee MH. p-Terphenyl curtisian E inhibits in vitro platelet aggregation via cAMP elevation and VASP phosphorylation. Vascul Pharmacol 2013; 59:83-9. [PMID: 23872194 DOI: 10.1016/j.vph.2013.07.002] [Citation(s) in RCA: 7] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2012] [Revised: 07/02/2013] [Accepted: 07/09/2013] [Indexed: 10/26/2022]
Abstract
Mushrooms possess untapped source of enormous natural compounds showing anti-inflammatory, antioxidant and anti-platelet activities. Paxillus curtisii, wild mushroom, is a rich source of curtisian E (CE) reported for neuroprotective effects; however, its anti-platelet effect was unknown. Here, therefore, we investigated the anti-platelet activity of CE in rat platelets. Curtisian E (12.5-200μM) attenuated collagen (2.5μg/ml), thrombin (0.1U/ml) and ADP (10μM) induced platelet aggregation in vitro. Likewise, CE diminished intracellular calcium and adenosine triphosphate (ATP) release in collagen activated platelets. Fibrinogen binding and fibronectin adhesion to platelets were also inhibited. While CE downregulated c-jun N-terminal kinase (JNK), extracellular signal-regulated kinase (ERK), p38, and Akt dose dependently in collagen stimulated platelets, it upregulated intraplatelet cyclic adenosine monophosphate (cAMP) and vasodilator-stimulated-phosphoprotein (VASP) phosphorylation. Protein kinase A inhibitor (H-89) markedly inhibited p-VASP(157) protein expression, suggesting that cAMP-PKA-VASP(157) pathway may mediate its anti-platelet effect and thus CE could be considered as a potential anti-thrombotic agent.
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Son TG, Gong EJ, Bae MJ, Kim SD, Heo K, Moon C, Yang K, Kim JS. Protective effect of genistein on radiation-induced intestinal injury in tumor bearing mice. BMC Complement Altern Med 2013; 13:103. [PMID: 23672582 PMCID: PMC3671128 DOI: 10.1186/1472-6882-13-103] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/02/2013] [Accepted: 05/09/2013] [Indexed: 01/01/2023]
Abstract
BACKGROUND Radiation therapy is the most widely used treatment for cancer, but it causes the side effect of mucositis due to intestinal damage. We examined the protective effect of genistein in tumor-bearing mice after abdominal irradiation by evaluation of apoptosis and intestinal morphological changes. METHODS Mouse colon cancer CT26 cells were subcutaneously injected at the flank of BALB/c mice to generate tumors. The tumor-bearing mice were treated with abdominal radiation at 5 and 10 Gy, and with genistein at 200 mg/kg body weight per day for 1 d before radiation. The changes in intestinal histology were evaluated 12 h and 3.5 d after irradiation. To assess the effect of the combination treatment on the cancer growth, the tumor volume was determined at sacrifice before tumor overgrowth occurred. RESULTS Genistein significantly decreased the number of apoptotic nuclei compared with that in the irradiation group 12 h after 5 Gy irradiation. Evaluation of histological changes showed that genistein ameliorated intestinal morphological changes such as decreased crypt survival, villus shortening, and increased length of the basal lamina 3.5 d after 10 Gy irradiation. Moreover, the genistein-treated group exhibited more Ki-67-positive proliferating cells in the jejunum than the irradiated control group, and crypt depths were greater in the genistein-treated group than in the irradiated control group. The mean weight of the CT26 tumors was reduced in the group treated with genistein and radiation compared with the control group. CONCLUSION Genistein had a protective effect on intestinal damage induced by irradiation and delayed tumor growth. These results suggest that genistein is a useful candidate for preventing radiotherapy-induced intestinal damage in cancer patients.
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Affiliation(s)
- Tae Gen Son
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, Republic of Korea
| | - Eun Ji Gong
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, Republic of Korea
| | - Min Ji Bae
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, Republic of Korea
| | - Sung Dae Kim
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, Republic of Korea
| | - Kyu Heo
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, Republic of Korea
| | - Changjong Moon
- Department of Veterinary Anatomy, College of Veterinary Medicine and Veterinary Medical Research Center, Chonnam National University, Gwangju, South Korea
| | - Kwangmo Yang
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, Republic of Korea
| | - Joong Sun Kim
- Research Center, Dongnam Institute of Radiological & Medical Sciences (DIRAMS), Jwadong-gil 40, Jangan-eup, Gijang-gun, Busan, Republic of Korea
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Kim SD, Kim SW, Yoon BI, Ha US, Kim SW, Cho YH, Sohn DW. The Relationship between Clinical Symptoms and Urine Culture in Adult Patients with Acute Epididymitis. World J Mens Health 2013; 31:53-7. [PMID: 23658866 PMCID: PMC3640153 DOI: 10.5534/wjmh.2013.31.1.53] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [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: 12/24/2012] [Revised: 02/04/2013] [Accepted: 02/04/2013] [Indexed: 11/25/2022] Open
Abstract
Purpose We evaluated adult patients with acute epididymitis to identify the frequency of actual sexual contacts and the causative organism, and compared clinical examinations, degrees of manifested symptoms, and radiological test results. Materials and Methods We reviewed the medical records of 65 patients older than 18 years presenting with acute epididymitis who had been treated between 2002 and 2011. Scrotal ultrasonography, urinalysis, and urine culture were performed to diagnose the acute epididymitis. Patients were divided into negative (n=45) and positive (n=20) urine culture groups. Then the latter groups were subdivided into a sexually transmitted organism (STO) culture group (n=13) and a non-STO (n=7) culture group. Data on any history of sexual contact, scrotal pain and tenderness, symptoms of urethritis (discharge, dysuria, urethral burning, or irritation), and lower urinary tract symptoms (dysuria, frequency, and urgency of urination) were obtained from all of the subjects. Results Patients in the positive urine culture group were significantly younger than those in the other group (p=0.224) and were more likely to have a history of sexual contact at least two weeks prior to onset of epididymitis (p=0.012). They had also a significantly enlarged epididymal head and significantly more severe complaints of pain or tenderness than those of latter group (p=0.348, p=0.288). However, the difference in these measures between the STO and non-STO group was not significant, except in the case of age (p=0.044). Conclusions Patients of the positive urine culture group with acute epididymitis were significantly younger and more sexually active than the others. They also had severe pain or tenderness and an enlarged epididymal head. There was a close association between clinical symptoms, a positive urine culture, and ultrasonographic findings.
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Affiliation(s)
- Sung Dae Kim
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
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Kim YJ, Huh JS, Hyun CL, Kim SD. A case of pediatric paratesticular rhabdomyosarcoma with epididymitis. World J Mens Health 2013; 30:146-9. [PMID: 23596603 PMCID: PMC3623524 DOI: 10.5534/wjmh.2012.30.2.146] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [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: 07/26/2012] [Revised: 08/13/2012] [Accepted: 08/14/2012] [Indexed: 11/24/2022] Open
Abstract
Paratesticular rhabdomyosarcoma is a rare malignancy arising from the mesenchymal tissues of the spermatic cord, epididymis, testis, and testicular tunica, and accounts for approximately 7% of all rhabdomyosarcomas. It often occurs in children but is known to have a better prognosis than disease at other urogenital sites. Patients typically present with painless unilateral scrotal swelling like a solid testicular tumor. However, we report an unusual case of delayed diagnosis of paratesticular rhabdomyosarcoma accompanied by epididymitis manifesting an painful scrotal swelling.
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Affiliation(s)
- Young-Joo Kim
- Department of Urology, School of Medicine, Jeju National University, Jeju, Korea
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Endale M, Lee WM, Kamruzzaman SM, Kim SD, Park JY, Park MH, Park TY, Park HJ, Cho JY, Rhee MH. Ginsenoside-Rp1 inhibits platelet activation and thrombus formation via impaired glycoprotein VI signalling pathway, tyrosine phosphorylation and MAPK activation. Br J Pharmacol 2013; 167:109-27. [PMID: 22471932 DOI: 10.1111/j.1476-5381.2012.01967.x] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND AND PURPOSE Ginsenosides are the main constituents for the pharmacological effects of Panax ginseng. Such effects of ginsenosides including cardioprotective and anti-platelet activities have shown stability and bioavailability limitations. However, information on the anti-platelet activity of ginsenoside-Rp1 (G-Rp1), a stable derivative of ginsenoside-Rg3, is scarce. We examined the ability of G-Rp1 to modulate agonist-induced platelet activation. EXPERIMENTAL APPROACH G-Rp1 in vitro and ex vivo effects on agonist-induced platelet-aggregation, granule-secretion, [Ca(2+) ](i) mobilization, integrin-α(IIb) β(3) activation were examined. Vasodilator-stimulated phosphoprotein (VASP) and MAPK expressions and levels of tyrosine phosphorylation of the glycoprotein VI (GPVI) signalling pathway components were also studied. G-Rp1 effects on arteriovenous shunt thrombus formation in rats or tail bleeding time and ex vivo coagulation time in mice were determined. KEY RESULT: G-Rp1 markedly inhibited platelet aggregation induced by collagen, thrombin or ADP. While G-Rp1 elevated cAMP levels, it dose-dependently suppressed collagen-induced ATP-release, thromboxane secretion, p-selectin expression, [Ca(2+) ](i) mobilization and α(IIb) β(3) activation and attenuated p38(MAPK) and ERK2 activation. Furthermore, G-Rp1 inhibited tyrosine phosphorylation of multiple components (Fyn, Lyn, Syk, LAT, PI3K and PLCγ2) of the GPVI signalling pathway. G-Rp1 inhibited in vivo thrombus formation and ex vivo platelet aggregation and ATP secretion without affecting tail bleeding time and coagulation time, respectively. CONCLUSION AND IMPLICATIONS G-Rp1 inhibits collagen-induced platelet activation and thrombus formation through modulation of early GPVI signalling events, and this effect involves VASP stimulation, and ERK2 and p38(-MAPK) inhibition. These data suggest that G-Rp1 may have therapeutic potential for the treatment of cardiovascular diseases involving aberrant platelet activation.
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Affiliation(s)
- M Endale
- Laboratory of Physiology & Cell Signaling, College of Veterinary Medicine, Kyungpook National University, Daegu, Korea
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Han YK, Lee JH, Park GY, Chun SH, Han JY, Kim SD, Lee J, Lee CW, Yang K, Lee CG. A possible usage of a CDK4 inhibitor for breast cancer stem cell-targeted therapy. Biochem Biophys Res Commun 2013; 430:1329-33. [DOI: 10.1016/j.bbrc.2012.10.119] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2012] [Accepted: 10/27/2012] [Indexed: 12/11/2022]
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Chun SH, Park GY, Han YK, Kim SD, Kim JS, Lee CG, Yang K. Effect of low dose radiation on differentiation of bone marrow cells into dendritic cells. Dose Response 2012; 11:374-84. [PMID: 23983665 DOI: 10.2203/dose-response.12-041.lee] [Citation(s) in RCA: 15] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Low dose radiation has been shown to be beneficial to living organisms using several biological systems, including immune and hematopoietic systems. Chronic low dose radiation was shown to stimulate immune systems, resulting in controlling the proliferation of cancer cells, maintain immune balance and induce hematopoietic hormesis. Since dendritic cells are differentiated from bone marrow cells and are key players in maintaining the balance between immune activation and tolerance, it may be important to further characterize whether low dose radiation can influence the capacity of bone marrow cells to differentiate into dendritic cells. We have shown that bone marrow cells from low dose-irradiated (γ-radiation, 0.2Gy, 15.44mGy/h) mice can differentiate into dendritic cells that have several different characteristics, such as expression of surface molecules, cytokine secretion and antigen uptake capacity, when compared to dentritic cells differentiated from the control bone marrow cells. These differences observed in the low dose radiation group can be beneficial to living organisms either by activation of immune responses to foreign antigens or tumors, or maintenance of self-tolerance. To the best of our knowledge, this is the first report showing that total-body low dose radiation can modulate the capacity of bone marrow cells to differentiate into dendritic cells.
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Affiliation(s)
- Sung Hak Chun
- Research Center, Dongnam Institute of Radiological & Medical Sciences, Busan 619-953, Korea
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Huh JS, Kim YJ, Kim SD. Prevalence of Benign Prostatic Hyperplasia on Jeju Island: Analysis from a Cross-sectional Community-based Survey. World J Mens Health 2012; 30:131-7. [PMID: 23596600 PMCID: PMC3623521 DOI: 10.5534/wjmh.2012.30.2.131] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [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: 07/26/2012] [Revised: 08/18/2012] [Accepted: 08/20/2012] [Indexed: 11/29/2022] Open
Abstract
Purpose We report on the prevalence of benign prostatic hyperplasia (BPH) and lower urinary tract symptoms (LUTS) among men of Jeju Island, representing a coastal and insular area, using a cross-sectional community-based survey. Materials and Methods A total of 553 participants in a prostate health screening campaign on Jeju Island were subjected to measurements of the International Prostate Symptom Score (IPSS), prostate volume, uroflowmetry, postvoiding residual urine volume, and prostate-specific antigen levels. Eliminating 58 participants who were suspected of having prostate cancer, we analyzed the data from 495 participants. The definition of BPH was a combination of moderate IPSS (8~19) to severe IPSS (>19) and prostate enlargement (>30 g on transrectal ultrasonography). Results The prevalence of BPH was 21.0% overall: 11.6% among subjects aged 50~59 years, 18.1% for those aged 60~69, 30.8% for those aged 70~79 and 50.8% among those aged 80 years or more. Compared with previous studies in urban or rural areas, the prevalence was slightly lower. The prevalence of BPH and of moderate to severe LUTS increased with age and showed significant differences between age groups (p=0.028 and 0.033, respectively). A positive correlation was found between the IPSS and quality of life score. Among subunits of IPSS, the nocturia score contributed most to the severity of LUTS and had the highest correlation with a quality of life score. Conclusions The overall prevalence of BPH in this study was 21.0%, which is slightly lower than in previous studies in urban or rural areas.
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Affiliation(s)
- Jung-Sik Huh
- Department of Urology, Jeju National University School of Medicine, Jeju, Korea
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Hwang JK, Kim YK, Kim SD, Park SC, Choi BS, Kim JI, Yang CW, Kim YS, Moon IS. Does donor kidney to recipient body weight ratio influence long-term outcomes of living-donor kidney transplantation? Transplant Proc 2012; 44:276-80. [PMID: 22310632 DOI: 10.1016/j.transproceed.2011.12.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study evaluated the effect of the donor kidney to recipient body weight (Kw/Rw) ratio on long-term graft function and survival. We investigated retrospectively whether there was any association between Kw/Rw ratio and long-term graft survival and function after a follow-up of >10 years. We studied a consecutive series of 123 adult-to-adult living kidney transplants. According to the Kw/Rw ratio, patients were divided into 3 groups: "low" (Kw/Rw <2.85; n = 29), "medium" (2.85 ≤ Kw/Rw < 4.04; n = 63), and "high" (≥4.04; n = 31). Among the 3 groups, the mean serum creatinine levels at 1 and 6 months as well as 1 year after transplantation were significantly lower among patients with a high Kw/Rw ratio than in those with a medium or low ratio, but serum creatinine levels at 3 and 5 years did not differ significantly (P = .394 and 0.620, respectively). Graft survival rates at 5 and 10 years after transplantation were significantly lower in the "low" group. We observed a significant association between Kw/Rw ratio and graft survival (P = .018). The Kw/Rw ratio is an important factor for long-term graft survival and early graft function. However, it did not significantly affect subsequent renal function.
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Affiliation(s)
- J K Hwang
- Division of Transplantation Surgery, Department of Surgery, College of Medicine, Catholic University of Korea, Seoul, Korea
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Sohn DW, Kim S, Kim HS, Ha US, Kim SW, Cho YH, Son JH, Seo HK, Kim SD. 803 THE CHANGE OF ERECTILE FUNCTION AND HISTOLOGY OF CORPUS CAVERNOSUM IN A RAT MODEL OF METABOLIC SYNDROME. J Urol 2012. [DOI: 10.1016/j.juro.2012.02.892] [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: 10/28/2022]
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