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Kim HM, Kwon MH, Lee ES, Ha KB, Chung CH. DA-6034 ameliorates hepatic steatosis and inflammation in high fat diet-induced obese mice. J Yeungnam Med Sci 2024; 41:103-112. [PMID: 38486464 DOI: 10.12701/jyms.2023.01389] [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] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Accepted: 02/09/2024] [Indexed: 05/08/2024]
Abstract
BACKGROUND Nonalcoholic fatty liver disease (NAFLD) is characterized by an increase in hepatic triglyceride content and increased inflammatory macrophage infiltration through the C-C motif chemokine receptor (CCR) 5 pathway in the liver. DA-6034 (7-carboxymethyloxy-3',4',5-trimethoxy flavone), is a synthetic derivative of eupatilin that exhibits anti-inflammatory activity in inflammatory bowel disease. However, the effect of DA-6034 on the inflammatory response in NAFLD is not well elucidated. Therefore, we aimed to determine the effect of DA-6034 on hepatic steatosis and inflammation. METHODS Forty male C57BL/6J mice were divided into the following four groups: (1) regular diet (RD), (2) RD with DA-6034, (3) high fat diet (HFD), and (4) HFD with DA-6034. All mice were sacrificed 12 weeks after the start of the experiment. The effects of DA-6034 on macrophages were assessed using RAW264.7 cells. RESULTS DA-6034 not only reduced hepatic triglyceride levels and lipid accumulation but also macrophage infiltration and proinflammatory cytokines in HFD-fed mice. According to fluorescence-activated cell sorter analysis, DA-6034 reduced the CD8+ T cell fraction in the liver of HFD-fed mice. DA-6034 also reduced CCR5 expression and the migration of liver macrophages in HFD-fed mice and inhibited CCR2 ligand and CCR4 ligand, which stimulated the migration of macrophages. CONCLUSION Overall, DA-6034 attenuates hepatic steatosis and inflammation in obesity by regulating CCR5 expression in macrophages.
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Affiliation(s)
| | - Mi-Hye Kwon
- The East Coast Research Institute of Life Science, Gangneung-Wonju National University, Gangneung, Korea
| | - Eun Soo Lee
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
- Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Kyung Bong Ha
- Department of Clinical Research, Vaccine Center for Assisting Safety & Technology, Hwasun, Korea
| | - Choon Hee Chung
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
- Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea
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Ge Y, Palanisamy S, Kwon MH, Kou F, Uthamapriya RA, Lee DJ, Jeong D, Bao H, You S. Angelica gigas polysaccharide induces CR3-mediated macrophage activation and the cytotoxicity of natural killer cells against HCT-116 cells via NF-κB and MAPK signaling pathways. Int J Biol Macromol 2024; 263:130320. [PMID: 38412933 DOI: 10.1016/j.ijbiomac.2024.130320] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/04/2024] [Accepted: 02/18/2024] [Indexed: 02/29/2024]
Abstract
Angelica gigas (A. gigas) is traditional medicinal herb that mainly exists in Korea and northeastern China. There have been relatively few studies conducted thus far on its polysaccharides and their bioactivities. We purified and described a novel water-soluble polysaccharide derived from A. gigas and investigated its immunoenhancing properties. The basic components of crude and purified polysaccharides (F1 and F2) were total sugar (41.07% - 70.55%), protein (1.12-10.33%), sulfate (2.9-5.5%), and uronic acids (0.5-31.05%) in total content. Our results demonstrated that the crude and fractions' molecular weights (Mw) varied from 42.2 to 285.2 × 103 g/mol. As the most effective polysaccharide, F2 significantly stimulated RAW264.7 cells to release nitric oxide (NO) and express several cytokines. Furthermore, F2 increased the expression of tumor necrosis factor-α (TNF-α), interferon-gamma (IFN-ɣ), natural killer cytotoxicity receptors (NKp44), and granzyme-B in NK-92 cells and enhanced the cytotoxicity against HCT-116 cells. In our experiments, we found that F2 stimulated RAW264.7 cells and NK-92 cells via MAPK and NF-κB pathways. The monosaccharide and methylation analysis of the high immunostimulant F2 polysaccharide findings revealed that the polysaccharide was primarily composed of 1 → 4, 1 → 6, 1 → 3, 6, 1 → 3 and 1 → 3, 4, 6 galactopyranose residues, 1 → 3 arabinofuranose residues, 1 → 4 glucopyranose residues. These results demonstrated that the F2 polysaccharide of A. gigas which possesses potential immunostimulatory attributes, could be used to create a novel functional food.
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Affiliation(s)
- Yunfei Ge
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120, Gangneung, Gangwon 210-702, Republic of Korea
| | - Subramanian Palanisamy
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120, Gangneung, Gangwon 210-702, Republic of Korea; East Coast Life Sciences Institute, Gangneung-Wonju National University, 120, Gangneung, Gangwon 210-702, Republic of Korea
| | - Mi-Hye Kwon
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120, Gangneung, Gangwon 210-702, Republic of Korea; East Coast Life Sciences Institute, Gangneung-Wonju National University, 120, Gangneung, Gangwon 210-702, Republic of Korea
| | - Fang Kou
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120, Gangneung, Gangwon 210-702, Republic of Korea
| | - Rajavel Arumugam Uthamapriya
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120, Gangneung, Gangwon 210-702, Republic of Korea; East Coast Life Sciences Institute, Gangneung-Wonju National University, 120, Gangneung, Gangwon 210-702, Republic of Korea
| | - Dong-Jin Lee
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120, Gangneung, Gangwon 210-702, Republic of Korea
| | - Duyun Jeong
- Department of Food and Food Service Industry, Kyungpook National University, Sangju 37224, Republic of Korea
| | - Honghui Bao
- School of Food Science and Technology, School of Chemical Engineering, Hubei University of Arts and Science, Xiangyang, Hubei 441053, China.
| | - SangGuan You
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120, Gangneung, Gangwon 210-702, Republic of Korea; East Coast Life Sciences Institute, Gangneung-Wonju National University, 120, Gangneung, Gangwon 210-702, Republic of Korea.
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Kwon MH, Rho BY, Choi MJ, Limanjaya A, Ock J, Yin GN, Jin SW, Suh JK, Chung DY, Ryu JK. BMP2 restores erectile dysfunction through neurovascular regeneration and fibrosis reduction in diabetic mice. Andrology 2024; 12:447-458. [PMID: 37290397 DOI: 10.1111/andr.13475] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 05/04/2023] [Accepted: 06/03/2023] [Indexed: 06/10/2023]
Abstract
BACKGROUND The odds of erectile dysfunction are three times more prevalent in diabetes. Severe peripheral vascular and neural damage in diabetic patients responds poorly to phosphodiesterase-5 (PDE5) inhibitors. However, bone morphogenetic protein 2 is known to be involved in angiogenesis. OBJECTIVES To assess the efficacy of bone morphogenetic protein 2 in stimulating angiogenesis and augmenting nerve regeneration in a mouse model of diabetic-induced erectile dysfunction. MATERIALS AND METHODS The induction of diabetes mellitus was performed by streptozotocin (50 mg/kg daily) administered intraperitoneally for 5 successive days to male C57BL/6 mice that were 8 weeks old. Eight weeks post-inductions, animals were allocated to one of five groups: a control group, a streptozotocin-induced diabetic mouse group receiving two intracavernous 20 μL phosphate-buffered saline injections, or one of three bone morphogenetic protein 2 groups administered two injections of bone morphogenetic protein 2 protein (1, 5, or 10 μg) diluted in 20 μL of phosphate-buffered saline within a 3-day interval between the first and second injections. The erectile functions were assessed 2 weeks after phosphate-buffered saline or bone morphogenetic protein 2 protein injections by recording the intracavernous pressure through cavernous nerve electrical stimulation. Angiogenic activities and nerve regenerating effects of bone morphogenetic protein 2 were determined in penile tissues, aorta, vena cava, the main pelvic ganglions, the dorsal roots, and from the primary cultured mouse cavernous endothelial cells. Moreover, fibrosis-related factor protein expressions were evaluated by western blotting. RESULTS Erectile function recovery to 81% of the control value in diabetic mice was found with intracavernous bone morphogenetic protein 2 injection (5 μg/20 μL). Pericytes and endothelial cells were extensively restored. It was confirmed that angiogenesis was promoted in the corpus cavernosum of diabetic mice treated with bone morphogenetic protein 2 through increased ex vivo sprouting of aortic rings, vena cava and penile tissues, and migration and tube formation of mouse cavernous endothelial cells. Bone morphogenetic protein 2 protein enhanced cell proliferation and reduced apoptosis in mouse cavernous endothelial cells and penile tissues, and promoted neurite outgrowth in major pelvic ganglia and dorsal root ganglia under high-glucose conditions. Furthermore, bone morphogenetic protein 2 suppressed fibrosis by reducing mouse cavernous endothelial cell fibronectin, collagen 1, and collagen 4 levels under high-glucose conditions. CONCLUSION Bone morphogenetic protein 2 modulates neurovascular regeneration and inhibits fibrosis to revive the mouse erection function in diabetic conditions. Our findings propose that the bone morphogenetic protein 2 protein represents a novel and promising approach to treating diabetes-related erectile dysfunction.
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Affiliation(s)
- Mi-Hye Kwon
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon, Republic of Korea
| | - Beom Yong Rho
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon, Republic of Korea
| | - Min-Ji Choi
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon, Republic of Korea
| | - Anita Limanjaya
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon, Republic of Korea
| | - Jiyeon Ock
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon, Republic of Korea
| | - Guo Nan Yin
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon, Republic of Korea
| | - Suk-Won Jin
- School of Life Sciences and Cell Logistics Research Center, Gwangju Institute of Science and Technology, Gwangju, Republic of Korea
| | - Jun-Kyu Suh
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon, Republic of Korea
| | - Doo Yong Chung
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon, Republic of Korea
| | - Ji-Kan Ryu
- National Research Center for Sexual Medicine and Department of Urology, Inha University College of Medicine, Incheon, Republic of Korea
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Park NW, Lee ES, Ha KB, Jo SH, Kim HM, Kwon MH, Chung CH. Umbelliferone Ameliorates Hepatic Steatosis and Lipid-Induced ER Stress in High-Fat Diet-Induced Obese Mice. Yonsei Med J 2023; 64:243-250. [PMID: 36996895 PMCID: PMC10067795 DOI: 10.3349/ymj.2022.0354] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 02/25/2023] [Accepted: 02/27/2023] [Indexed: 04/01/2023] Open
Abstract
PURPOSE Among the characteristics of non-alcoholic fatty liver disease (NAFLD), hepatic steatosis is due to excessive fat accumulation and causes liver damage and lipotoxicity, which are associated with insulin resistance, endoplasmic reticulum (ER) stress, and apoptosis. Umbelliferone (UMB) has various powerful pharmacological properties, such as antioxidant, anti-hyperglycemic, anti-viral, and anti-inflammatory effects. However, the mechanism of action in hepatic steatosis and lipid-induced ER stress is still unclear. Thus, the efficacy of UMB in hepatic steatosis and palmitate (PA)-induced hepatocellular lipotoxicity was evaluated in the present study. MATERIALS AND METHODS Male C57BL/6J mice (n=40) were divided into four groups: regular diet (RD), UMB-supplemented RD, high-fat diet (HFD), and UMB-supplemented HFD. All mice were fed orally for 12 weeks. In addition, the effects of UMB on lipotoxicity were investigated in AML12 cells treated with PA (250 µM) for 24 h; Western blot analysis was used to evaluate the changes in ER stress and apoptotic-associated proteins. RESULTS Administration with UMB in HFD-fed mice reduced lipid accumulation and hepatic triglyceride (TG) as well as serum insulin and glucose levels. In AML12 cells, UMB treatment reduced lipid accumulation as indicated by decreases in the levels of lipogenesis markers, such as SREBP1, FAS, PPAR-γ, and ADRP. Furthermore, UMB reduced both oxidative stress and ER stress-related cellular apoptosis. CONCLUSION UMB supplementation ameliorated hepatic steatosis and improved insulin resistance by inhibiting lipid accumulation and regulating ER stress. These findings strongly suggest that UMB may be a potential therapeutic compound against NAFLD.
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Affiliation(s)
- Na Won Park
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
- Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Eun Soo Lee
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
- Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Kyung Bong Ha
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
- Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Su Ho Jo
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
- Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea
| | | | - Mi-Hye Kwon
- East Coast Life Sciences Institute, Gangneung-Wonju National University, Gangneung, Korea
| | - Choon Hee Chung
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
- Research Institute of Metabolism and Inflammation, Yonsei University Wonju College of Medicine, Wonju, Korea.
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Ma N, Kwon MH, Palanisamy S, Ge Y, Zhang Y, Kou F, Dae-Hee L, Lee DJ, Shin IS, You S. A novel sulfated mannan-carboxymethyl-5-fluorouracil-folic acid conjugates for targeted anticancer drug delivery. Carbohydr Polym 2023; 304:120454. [PMID: 36641184 DOI: 10.1016/j.carbpol.2022.120454] [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] [Received: 08/01/2022] [Revised: 12/06/2022] [Accepted: 12/07/2022] [Indexed: 12/15/2022]
Abstract
CFP2 is a sulfated polysaccharide isolated from Codium fragile that shows excellent immunomodulatory activity. To reduce the side effects of 5-fluorouracil (5-FU), CFP2 was used as a macromolecular carrier to react with carboxymethyl-5-fluorouracil (C-5-FU) to form CFP2-C-5-FU, which further reacted with folic acid (FA) via an ester bond to form novel conjugates (CFP2-C-5-FU-FA). CFP2-C-5-FU-FA was confirmed by nuclear magnetic resonance (NMR) analysis. In vitro drug release results showed that the cumulative release rate of C-5-FU was 49.9% in phosphate buffer (pH 7.4) after 96 h, which was much higher than that of the other groups, indicating that CFP2-C-5-FU-FA showed controlled drug release behavior. CFP2-C-5-FU-FA also exhibited enhanced apoptosis and cellular uptake in vitro. Further, intravenous administration of CFP2-C-5-FU-FA in an HCT-116 cell-bearing xenograft mouse showed that the conjugates were safe and effective drug delivery systems. These results suggest that folate-targeted conjugates can be used effectively for efficient chemotherapy of colorectal cancer.
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Affiliation(s)
- Nan Ma
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea
| | - Mi-Hye Kwon
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea; East Coast Research Institute of Life Science, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea
| | - Subramanian Palanisamy
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea; East Coast Research Institute of Life Science, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea
| | - Yunfei Ge
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea
| | - Yutong Zhang
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea
| | - Fang Kou
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea
| | - Lee Dae-Hee
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea; East Coast Research Institute of Life Science, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea
| | - Dong-Jin Lee
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada
| | - Il-Shik Shin
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea; East Coast Research Institute of Life Science, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea
| | - SangGuan You
- Department of Marine Food Science and Technology, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea; East Coast Research Institute of Life Science, Gangneung-Wonju National University, 120 Gangneung, Gangwon 210-702, Republic of Korea.
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Lee HR, Lee S, Yoo IS, Yoo SJ, Kwon MH, Joung CI, Park JA, Wook Kang S, Kim J. CD14+ monocytes and soluble CD14 of synovial fluid are associated with osteoarthritis progression. Arch Rheumatol 2022; 37:335-343. [PMID: 36589618 PMCID: PMC9791551 DOI: 10.46497/archrheumatol.2022.9078] [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: 07/12/2021] [Accepted: 10/02/2021] [Indexed: 01/15/2023] Open
Abstract
Objectives This study aims to investigate the role of cluster of differentiation 14 (CD14) expressed monocytes and soluble CD14-mediated pathway in the synovial inflammation of knee osteoarthritis (OA). Patients and methods Between May 2012 and July 2013, a total of 35 patients with knee OA (9 males, 26 females; mean age: 66.3±8.8 years; range, 52 to 79 years) were included in this cross-sectional study. Synovial fluid was obtained from knee joints of 35 OA patients. The CD14+ monocytes from synovial fluid mononuclear cells (SFMCs) were isolated using the MACS. The fibroblast-like synoviocytes (FLSs) isolated from knee joint tissue were incubated with recombinant CD14 and lipopolysaccharide (LPS) for 24 h. Cytokine profiling was performed with the Luminex® Performance Assay or magnetic bead panel kit. The expression of CD14 and CD16 was analyzed by immunohistochemistry and flow cytometry. Results The concentration of sCD14 in synovial fluid was correlated with the interleukin-6 (IL-6) level (n=35) (ρ=0.654, p<0.001). The culture supernatants of CD14+ monocytes isolated from SFMC (n=15) showed a correlation between sCD14 and IL-6 (ρ=0.784, p=0.001), along with complement component 3 (ρ=0.756, p=0.010), IL-1b (ρ=0.652, p=0.012), and tumor necrosis factor-alpha (ρ=0.806, p=0.001). Following recombinant CD14 and LPS treatment, OA FLS synergistically enhanced the secretion of IL-6, IL-8, and matrix metalloproteinase 3 (n=3, p<0.05). In five paired-samples from identical patients, the proportions of CD14+ monocytes were significantly elevated in recurred synovial fluid compared to those in initial synovial fluid (p=0.043). When monocyte subsets were analyzed in SFMC (n=26), CD14+CD16+monocytes were abundant (p=0.019) and had higher toll-like receptor 4 expression than CD14+CD16- (p<0.001). Conclusion Our study results suggest that CD14+ monocytes and the sCD14-mediated pathway play an important role in OA aggravation through inflammatory cytokine secretion.
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Affiliation(s)
- Ha-Reum Lee
- Department of Internal Medicine, Division of Rheumatology, Chungnam National University Hospital, Daejeon, Republic of Korea
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Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Sunyoung Lee
- Department of Internal Medicine, Division of Rheumatology, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - In Seol Yoo
- Department of Internal Medicine, Division of Rheumatology, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Su-Jin Yoo
- Department of Internal Medicine, Division of Rheumatology, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Mi-Hye Kwon
- Department of Internal Medicine, Konyang University School of Medicine, Daejeon, Republic of Korea
| | - Chung-il Joung
- Department of Internal Medicine, Konyang University School of Medicine, Daejeon, Republic of Korea
| | - Ji Ah Park
- Department of Internal Medicine, Division of Rheumatology, Chungnam National University Hospital, Daejeon, Republic of Korea
| | - Seong Wook Kang
- Department of Internal Medicine, Division of Rheumatology, Chungnam National University Hospital, Daejeon, Republic of Korea
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Research Institute for Medical Sciences, Chungnam National University School of Medicine, Daejeon, Republic of Korea
| | - Jinhyun Kim
- Department of Internal Medicine, Division of Rheumatology, Chungnam National University Hospital, Daejeon, Republic of Korea
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Yin GN, Shin TY, Ock J, Choi MJ, Limanjaya A, Kwon MH, Liu FY, Hong SS, Kang JH, Gho YS, Suh JK, Ryu JK. Pericyte‑derived extracellular vesicles‑mimetic nanovesicles improves peripheral nerve regeneration in mouse models of sciatic nerve transection. Int J Mol Med 2022; 49:18. [PMID: 34935051 PMCID: PMC8711595 DOI: 10.3892/ijmm.2021.5073] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 12/02/2021] [Indexed: 11/06/2022] Open
Abstract
Pericyte‑derived extracellular vesicle‑mimetic nanovesicles (PC‑NVs) play an important role in the improvement of erectile function after cavernous nerve injury. However, the impact of PC‑NVs on the peripheral nervous system (PNS), such as the sciatic nerve, is unclear. In this study, PC‑NVs were isolated from mouse cavernous pericytes (MCPs). A sciatic nerve transection (SNT) model was established using 8‑week‑old C57BL/6J mice. The sciatic nerve was harvested 5 and 14 days for immunofluorescence and western blot studies. Function studies were evaluated by performing the rotarod test and walking track analysis. The results demonstrated that PC‑NVs could stimulate endothelial cells, increase neuronal cell content, and increase macrophage and Schwann cell presence at the proximal stump rather than the distal stump in the SNT model, thereby improving angiogenesis and nerve regeneration in the early stage of sciatic nerve regeneration. In addition, PC‑NVs also increased the expression of neurotrophic factors (brain‑derived nerve growth factor, neurotrophin‑3 and nerve growth factor) and the activity of the cell survival signaling pathway (PI3K/Akt signaling), and reduced the activity of the JNK signaling pathway. Additionally, after 8 weeks of local application of PC‑NVs in SNT model mice, their motor and sensory functions were significantly improved, as assessed by performing the rotarod test and walking track analysis. In conclusion, the present study showed that the significant improvement of neurovascular regeneration in mice following treatment with PC‑NVs may provide a favorable strategy for promoting motor and sensory regeneration and functional recovery of the PNS.
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Affiliation(s)
- Guo Nan Yin
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon 22332, Republic of Korea
| | - Tae Young Shin
- Department of Urology, Ewha Woman's University School of Medicine, Seoul 07804, Republic of Korea
| | - Jiyeon Ock
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon 22332, Republic of Korea
| | - Min-Ji Choi
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon 22332, Republic of Korea
| | - Anita Limanjaya
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon 22332, Republic of Korea
| | - Mi-Hye Kwon
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon 22332, Republic of Korea
| | - Fang-Yuan Liu
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon 22332, Republic of Korea
| | - Soon-Sun Hong
- Department of Biomedical Sciences, College of Medicine, Program in Biomedical Science and Engineering, Inha University, Incheon 22332, Republic of Korea
| | - Ju-Hee Kang
- Department of Pharmacology and Medicinal Toxicology Research Center, Inha University College of Medicine, Incheon 22332, Republic of Korea
| | - Yong Song Gho
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Gyeongsangbuk-do 37673, Republic of Korea
| | - Jun-Kyu Suh
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon 22332, Republic of Korea
| | - Ji-Kan Ryu
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon 22332, Republic of Korea
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Yin GN, Piao S, Liu Z, Wang L, Ock J, Kwon MH, Kim DK, Gho YS, Suh JK, Ryu JK. RNA-sequencing profiling analysis of pericyte-derived extracellular vesicle-mimetic nanovesicles-regulated genes in primary cultured fibroblasts from normal and Peyronie's disease penile tunica albuginea. BMC Urol 2021; 21:103. [PMID: 34362357 PMCID: PMC8344132 DOI: 10.1186/s12894-021-00872-x] [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: 09/04/2020] [Accepted: 07/20/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Peyronie's disease (PD) is a severe fibrotic disease of the tunica albuginea that causes penis curvature and leads to penile pain, deformity, and erectile dysfunction. The role of pericytes in the pathogenesis of fibrosis has recently been determined. Extracellular vesicle (EV)-mimetic nanovesicles (NVs) have attracted attention regarding intercellular communication between cells in the field of fibrosis. However, the global gene expression of pericyte-derived EV-mimetic NVs (PC-NVs) in regulating fibrosis remains unknown. Here, we used RNA-sequencing technology to investigate the potential target genes regulated by PC-NVs in primary fibroblasts derived from human PD plaque. METHODS Human primary fibroblasts derived from normal and PD patients was cultured and treated with cavernosum pericytes isolated extracellular vesicle (EV)-mimetic nanovesicles (NVs). A global gene expression RNA-sequencing assay was performed on normal fibroblasts, PD fibroblasts, and PD fibroblasts treated with PC-NVs. Reverse transcription polymerase chain reaction (RT-PCR) was used for sequencing data validation. RESULTS A total of 4135 genes showed significantly differential expression in the normal fibroblasts, PD fibroblasts, and PD fibroblasts treated with PC-NVs. However, only 91 contra-regulated genes were detected among the three libraries. Furthermore, 20 contra-regulated genes were selected and 11 showed consistent changes in the RNA-sequencing assay, which were validated by RT-PCR. CONCLUSION The gene expression profiling results suggested that these validated genes may be good targets for understanding potential mechanisms and conducting molecular studies into PD.
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Affiliation(s)
- Guo Nan Yin
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, 7-206, 3rd St, Shinheung-Dong, Jung-Gu, Incheon, 22332, Republic of Korea
| | - Shuguang Piao
- Department of Urology at Changhai Hospital Affiliated with the Naval Medicine University, Shanghai, 200433, People's Republic of China
| | - Zhiyong Liu
- Department of Urology at Changhai Hospital Affiliated with the Naval Medicine University, Shanghai, 200433, People's Republic of China
| | - Lei Wang
- Department of Urology at Changhai Hospital Affiliated with the Naval Medicine University, Shanghai, 200433, People's Republic of China
| | - Jiyeon Ock
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, 7-206, 3rd St, Shinheung-Dong, Jung-Gu, Incheon, 22332, Republic of Korea
| | - Mi-Hye Kwon
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, 7-206, 3rd St, Shinheung-Dong, Jung-Gu, Incheon, 22332, Republic of Korea
| | - Do-Kyun Kim
- Korea Zoonosis Research Institute, Jeonbuk National University, Iksan, Jeonbuk, 54531, Korea
| | - Yong Song Gho
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Kyeongsangbuk-do, 37673, Korea
| | - Jun-Kyu Suh
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, 7-206, 3rd St, Shinheung-Dong, Jung-Gu, Incheon, 22332, Republic of Korea.
| | - Ji-Kan Ryu
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, 7-206, 3rd St, Shinheung-Dong, Jung-Gu, Incheon, 22332, Republic of Korea.
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9
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Yin GN, Park SH, Ock J, Choi MJ, Limanjaya A, Ghatak K, Song KM, Kwon MH, Kim DK, Gho YS, Suh JK, Ryu JK. Pericyte-Derived Extracellular Vesicle-Mimetic Nanovesicles Restore Erectile Function by Enhancing Neurovascular Regeneration in a Mouse Model of Cavernous Nerve Injury. J Sex Med 2020; 17:2118-2128. [PMID: 32855091 DOI: 10.1016/j.jsxm.2020.07.083] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 07/20/2020] [Accepted: 07/25/2020] [Indexed: 12/13/2022]
Abstract
BACKGROUND Extracellular vesicle (EV)-mimetic nanovesicles (NVs) from embryonic stem cells have been observed to stimulate neurovascular regeneration in the streptozotocin-induced diabetic mouse. Pericytes play important roles in maintaining penile erection, yet no previous studies have explored the effects of pericyte-derived NVs (PC-NVs) in neurovascular regeneration in the context of erectile dysfunction. AIM To investigate the potential effect of PC-NVs in neurovascular regeneration. METHODS PC-NVs were isolated from mouse cavernous pericytes, and neurovascular regeneration was evaluated in an in vitro study. Twelve-week-old C57BL/6J mice were used to prepare cavernous nerve injury model. Erectile function evaluation, histologic examination of the penis, and Western blots were assessed 2 weeks after model creation and PC-NVs treatment. OUTCOMES The main outcomes of this study are PC-NVs characterization, intracavernous pressure, neurovascular regeneration in the penis, and in vitro functional evaluation. RESULTS The PC-NVs were extracted and characterized by cryotransmission electron microscopy and EV-positive (Alix, TSG101, CD81) and EV-negative (GM130) markers. In the in vivo studies, PC-NVs successfully improved erectile function in cavernous nerve injury mice (∼82% of control values). Immunofluorescence staining showed significant increases in pericytes, endothelial cell, and neuronal contents. In the in vitro studies, PC-NVs significantly increased mouse cavernous endothelial cells tube formation, Schwann cell migration, and dorsal root ganglion and major pelvic ganglion neurite sprouting. Finally, Western blot analysis revealed that PC-NVs upregulated cell survival signaling (Akt and eNOS) and induced the expression of neurotrophic factors (brain-derived neurotrophic factor, neurotrophin-3, and nerve growth factor). CLINICAL IMPLICATIONS PC-NVs may be used as a strategy to treat erectile dysfunction after radical prostatectomy or in men with neurovascular diseases. STRENGTHS & LIMITATIONS We evaluated the effect of PC-NVs in vitro and in a mouse nerve injury model, cavernous nerve injury. Additional studies are necessary to determine the detailed mechanisms of neurovascular improvement. Further study is needed to test whether PC-NVs are also effective when given weeks or months after nerve injury. CONCLUSION PC-NVs significantly improved erectile function by enhancing neurovascular regeneration. Local treatment with PC-NVs may represent a promising therapeutic strategy for the treatment of neurovascular diseases. Yin GN, Park S-H, Ock J, et al. Pericyte-Derived Extracellular Vesicle-Mimetic Nanovesicles Restore Erectile Function by Enhancing Neurovascular Regeneration in a Mouse Model of Cavernous Nerve Injury. J Sex Med 2020;17:2118-2128.
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Affiliation(s)
- Guo Nan Yin
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Republic of Korea
| | - Soo-Hwan Park
- Department of Urology, Kosin University College of Medicine, Busan, Republic of Korea
| | - Jiyeon Ock
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Republic of Korea
| | - Min-Ji Choi
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Republic of Korea
| | - Anita Limanjaya
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Republic of Korea
| | - Kalyan Ghatak
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Republic of Korea
| | - Kang-Moon Song
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Republic of Korea
| | - Mi-Hye Kwon
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Republic of Korea
| | - Do-Kyun Kim
- Center for Biomolecular & Cellular Structure, Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - Yong Song Gho
- Department of Life Sciences, Pohang University of Science and Technology, Pohang, Kyeongsangbuk-do, Republic of Korea
| | - Jun-Kyu Suh
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Republic of Korea.
| | - Ji-Kan Ryu
- Department of Urology and National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Republic of Korea.
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10
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Lee ES, Kwon MH, Kim HM, Woo HB, Ahn CM, Chung CH. Curcumin analog CUR5-8 ameliorates nonalcoholic fatty liver disease in mice with high-fat diet-induced obesity. Metabolism 2020; 103:154015. [PMID: 31758951 DOI: 10.1016/j.metabol.2019.154015] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 11/05/2019] [Accepted: 11/18/2019] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Nonalcoholic fatty liver disease (NAFLD) occurs when excess fat storage in the liver and it is strongly linked with metabolic syndrome including obesity, insulin resistance, dyslipidemia and hypertension. Curcumin5-8 (CUR5-8) is a synthetic derivative of naturally active curcumin (CUR) that has anti-oxidative and anti-inflammatory properties. In the present study, we investigated the effects of CUR5-8, a novel CUR analog, on hepatic steatosis in mice with high-fat diet (HFD)-induced obesity. METHODS Based on their diets for 13 weeks, the mice were categorized into the following six groups: regular diet (RD, n = 10), RD with CUR (RD + CUR, 100 mg/kg/day, n = 10), RD with CUR5-8 (RD + CUR5-8, 100 mg/kg/day, n = 10), high-fat diet-induced obese mice (HFD, n = 10), HFD with CUR (HFD + CUR, 100 mg/kg/day, n = 10), and HFD with CUR5-8 (HFD + CUR5-8, 100 mg/kg/day, n = 10) for 13 weeks. Hematoxylin and eosin (H&E) staining of the sections revealed hepatic steatosis. RESULTS CUR5-8 administration prevented increase in body and liver weights in mice with HFD-induced obesity. Compared to the HFD group, insulin resistance was significantly improved in the HFD + CUR5-8 group. Serum alanine aminotransferase level, which is an indicator of liver damage, was also decreased after CUR5-8 administration. H&E staining revealed that CUR5-8 treatment decreased hepatic steatosis in mice with HFD-induced obesity. Interestingly, CUR5-8, and not CUR, decreased the elevated liver triglyceride level induced by the HFD. CONCLUSIONS These findings suggest that CUR5-8 ameliorates insulin resistance and hepatic steatosis in mice with HFD-induced obesity.
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Affiliation(s)
- Eun Soo Lee
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju 220-701, Republic of Korea
| | - Mi-Hye Kwon
- The East Coast Research Institute of Life Science, Gangneung-Wonju National University, Gangneung, Republic of Korea
| | - Hong Min Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju 220-701, Republic of Korea
| | - Ho Bum Woo
- Department of Basic Science, Yonsei University Wonju College of Medicine, Wonju 220-701, Republic of Korea
| | - Chan Mug Ahn
- Department of Basic Science, Yonsei University Wonju College of Medicine, Wonju 220-701, Republic of Korea
| | - Choon Hee Chung
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju 220-701, Republic of Korea.
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11
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Jung SH, Lee JY, Lee SH, Kwon MH, Han ET, Park WS, Hong SH, Kim YM, Ha KS. Preventive Effects of Thermosensitive Biopolymer-Conjugated C-Peptide against High Glucose-Induced Endothelial Cell Dysfunction. Macromol Biosci 2019; 19:e1900129. [PMID: 31310433 DOI: 10.1002/mabi.201900129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [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: 04/13/2019] [Revised: 05/31/2019] [Indexed: 11/08/2022]
Abstract
C-peptide has emerged as a potential drug for treating diabetic complications. However, clinical application of C-peptide is limited by its short half-life during circulation and costly synthesis methods. To overcome these limitations, a biocompatible and thermosensitive biopolymer-C-peptide conjugate composed of human C-peptide genetically conjugated at the C-terminus of nine repeats of lysine-containing elastin-like polypeptide (K9-C-peptide) is generated. K9-C-peptide exhibits reversible thermal phase behavior with a transition temperature dependent on polypeptide concentration. Degradation of K9-C-peptide hydrogel depends on the concentration of four cleavage enzymes as well as the reaction time and frequency of treatments with elastase-2. The preventive effect of K9-C-peptide against high glucose-induced human aortic endothelial cell dysfunction is further investigated. K9-C-peptide inhibits high glucose-induced intracellular reactive oxygen species generation, transglutaminase 2 activation, and apoptosis, similar to the inhibitory effects of human C-peptide. Thus, K9-C-peptide is a potential drug depot for the sustained delivery of C-peptide to treat diabetic complications.
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Affiliation(s)
- Se-Hui Jung
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Jee-Yeon Lee
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Seong-Hyeon Lee
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Mi-Hye Kwon
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Eun-Taek Han
- Department of Medical Environmental Biology and Tropical Medicine, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Won Sun Park
- Department of Physiology, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Seok-Ho Hong
- Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Young-Myeong Kim
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
| | - Kwon-Soo Ha
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, Korea
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12
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Nguyen NM, Song KM, Choi MJ, Ghatak K, Kwon MH, Ock J, Yin GN, Ryu JK, Suh JK. Inhibition of proNGF and p75NTR Pathway Restores Erectile Function Through Dual Angiogenic and Neurotrophic Effects in the Diabetic Mouse. J Sex Med 2019; 16:351-364. [DOI: 10.1016/j.jsxm.2019.01.013] [Citation(s) in RCA: 7] [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: 09/10/2018] [Revised: 12/24/2018] [Accepted: 01/16/2019] [Indexed: 01/24/2023]
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13
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Lee ES, Kwon MH, Kim HM, Kim N, Kim YM, Kim HS, Lee EY, Chung CH. Dibenzoylmethane ameliorates lipid-induced inflammation and oxidative injury in diabetic nephropathy. J Endocrinol 2019; 240:169-179. [PMID: 30475214 DOI: 10.1530/joe-18-0206] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 10/31/2018] [Indexed: 11/08/2022]
Abstract
Dibenzoylmethane (DBM) is a beta-diketone analog of curcumin. Numerous studies have shown the beneficial effects of curcumin on diabetes, obesity and diabetic complications including diabetic nephropathy. Recently, we investigated the beneficial metabolic effects of DBM on high-fat diet-induced obesity. However, the effects and mechanisms of action of DBM in the kidney are currently unknown. To investigate the renoprotective effects of DBM in type 2 diabetes, we administered DBM (100 mg/kg) orally for 12 weeks to high-fat diet-induced diabetic model mice. We used mouse renal mesangial (MES13) and macrophage (RAW 264.7) cells to examine the mechanism of action of DBM (20 μM). After DBM treatment, the albumin-to-creatinine ratio was significantly decreased compared to that of the high-fat-diet group. Moreover, damaged renal ultra-structures and functions including increased glomerular volume, glomerular basement membrane thickness and inflammatory signals were ameliorated after DBM treatment. Stimulation of MES13 and RAW264.7 cells by palmitate or high-dose glucose with lipopolysaccharides increased inflammatory signals and macrophage migration. However, these changes were reversed by DBM treatment. In addition, DBM inhibited NADPH oxidase 2 and 4 expression and oxidative DNA damage. Collectively, these data suggested that DBM prevented diabetes-induced renal injury through its anti-inflammatory and antioxidant effects.
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Affiliation(s)
- Eun Soo Lee
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Mi-Hye Kwon
- The East Coast Research Institute of Life Science, Gangneung-Wonju National University, Gangneung, Korea
| | - Hong Min Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Nami Kim
- Department of Anatomy, Korea University College of Medicine, Seoul, Korea
| | - You Mi Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Hyeon Soo Kim
- Department of Anatomy, Korea University College of Medicine, Seoul, Korea
| | - Eun Young Lee
- Department of Internal Medicine and Institute of Tissue Regeneration, Soonchunhyang University, Cheonan, Korea
| | - Choon Hee Chung
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
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14
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Jung SH, Kwon MH, Lee SH, Han ET, Park WS, Hong SH, Kim YM, Ha KS. High-throughput investigation of transglutaminase 2 kinase regulation using a novel cysteine-modified peptide array. Anal Biochem 2018; 559:62-70. [PMID: 30165045 DOI: 10.1016/j.ab.2018.08.022] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Revised: 08/23/2018] [Accepted: 08/24/2018] [Indexed: 12/19/2022]
Abstract
Transglutaminase 2 (TGase2) kinase has emerged as an important regulator of apoptosis as well as chromatin structure and function; however, details about the pathophysiological functions of TGase2 kinase have been limited because of the lack of a suitable activity assay for systematic investigation of TGase2 kinase regulation in a high-throughput manner. Thus, we developed a novel on-chip TGase2 kinase activity assay using a cysteine-modified insulin-like growth factor-binding protein-3-derived peptide (CMI peptide) on an array platform. This peptide array-based activity assay was reproducible, with a detection limit of 2.127 μg/ml. We successfully applied this assay to investigate the effects of thiol-reactive compounds and divalent cations on TGase2 kinase by determining the half maximal inhibitory concentrations (IC50). Thiol-reactive compounds inhibited TGase2 kinase activity in a concentration-dependent manner, with IC50 values ranging from 0.125 to 5.550 mM. Divalent metal cations also showed a concentration-dependent inhibition, with IC50 values ranging from 0.005 to 1.937 mM; however, Ca2+ had no effect on TGase2 kinase activity. Thus, this novel kinase activity assay using the CMI peptide array described here is suitable for systematic investigation of TGase2 kinase regulation and may be useful for investigating the roles of TGase2 kinase in pathogenesis of kinase-mediated diseases.
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Affiliation(s)
- Se-Hui Jung
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, South Korea
| | - Mi-Hye Kwon
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, South Korea
| | - Seong-Hyeon Lee
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, South Korea
| | - Eun-Taek Han
- Department of Medical Environmental Biology and Tropical Medicine, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, South Korea
| | - Won Sun Park
- Department of Physiology, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, South Korea
| | - Seok-Ho Hong
- Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, South Korea
| | - Young-Myeong Kim
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, South Korea
| | - Kwon-Soo Ha
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do, 200-701, South Korea.
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15
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Yin GN, Jin HR, Choi MJ, Limanjaya A, Ghatak K, Minh NN, Ock J, Kwon MH, Song KM, Park HJ, Kim HM, Kwon YG, Ryu JK, Suh JK. Pericyte-Derived Dickkopf2 Regenerates Damaged Penile Neurovasculature Through an Angiopoietin-1-Tie2 Pathway. Diabetes 2018; 67:1149-1161. [PMID: 29559443 DOI: 10.2337/db17-0833] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 03/02/2018] [Indexed: 11/13/2022]
Abstract
Penile erection requires well-coordinated interactions between vascular and nervous systems. Penile neurovascular dysfunction is a major cause of erectile dysfunction (ED) in patients with diabetes, which causes poor response to oral phosphodiesterase-5 inhibitors. Dickkopf2 (DKK2), a Wnt antagonist, is known to promote angiogenesis. Here, using DKK2-Tg mice or DKK2 protein administration, we demonstrate that the overexpression of DKK2 in diabetic mice enhances penile angiogenesis and neural regeneration and restores erectile function. Transcriptome analysis revealed that angiopoietin-1 and angiopoietin-2 are target genes for DKK2. Using an endothelial cell-pericyte coculture system and ex vivo neurite sprouting assay, we found that DKK2-mediated juxtacrine signaling in pericyte-endothelial cell interactions promotes angiogenesis and neural regeneration through an angiopoietin-1-Tie2 pathway, rescuing erectile function in diabetic mice. The dual angiogenic and neurotrophic effects of DKK2, especially as a therapeutic protein, will open new avenues to treating diabetic ED.
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MESH Headings
- Adult
- Angiopoietin-1/agonists
- Angiopoietin-1/genetics
- Angiopoietin-1/metabolism
- Animals
- Cell Line, Tumor
- Cells, Cultured
- Coculture Techniques
- Crosses, Genetic
- Diabetes Mellitus, Type 1/complications
- Diabetes Mellitus, Type 1/metabolism
- Diabetes Mellitus, Type 1/pathology
- Diabetes Mellitus, Type 2/complications
- Diabetes Mellitus, Type 2/metabolism
- Diabetes Mellitus, Type 2/pathology
- Diabetic Angiopathies/drug therapy
- Diabetic Angiopathies/metabolism
- Diabetic Angiopathies/pathology
- Diabetic Nephropathies/drug therapy
- Diabetic Nephropathies/metabolism
- Diabetic Nephropathies/pathology
- Endothelium, Vascular/drug effects
- Endothelium, Vascular/innervation
- Endothelium, Vascular/metabolism
- Endothelium, Vascular/pathology
- Erectile Dysfunction/complications
- Erectile Dysfunction/drug therapy
- Erectile Dysfunction/metabolism
- Erectile Dysfunction/pathology
- Humans
- Intercellular Signaling Peptides and Proteins/chemistry
- Intercellular Signaling Peptides and Proteins/genetics
- Intercellular Signaling Peptides and Proteins/metabolism
- Intercellular Signaling Peptides and Proteins/therapeutic use
- Male
- Mice, Inbred C57BL
- Mice, Transgenic
- Penis/blood supply
- Penis/innervation
- Penis/metabolism
- Penis/pathology
- Pericytes/drug effects
- Pericytes/metabolism
- Pericytes/pathology
- Receptor, TIE-2/agonists
- Receptor, TIE-2/metabolism
- Wnt Signaling Pathway
- Young Adult
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Affiliation(s)
- Guo Nan Yin
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Republic of Korea
| | - Hai-Rong Jin
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Republic of Korea
- Department of Urology, Yuhuangding Hospital, Yantai, Shandong Province, People's Republic of China
| | - Min-Ji Choi
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Republic of Korea
| | - Anita Limanjaya
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Republic of Korea
| | - Kalyan Ghatak
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Republic of Korea
| | - Nguyen Nhat Minh
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Republic of Korea
| | - Jiyeon Ock
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Republic of Korea
| | - Mi-Hye Kwon
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Republic of Korea
| | - Kang-Moon Song
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Republic of Korea
| | - Heon Joo Park
- Hypoxia-Related Disease Research Center, Inha University College of Medicine, Incheon, Republic of Korea
| | - Ho Min Kim
- Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - Young-Guen Kwon
- Department of Biochemistry, College of Life Science and Biotechnology, Yonsei University, Seoul, Republic of Korea
| | - Ji-Kan Ryu
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Republic of Korea
- Inha Research Institute for Medical Sciences, Inha University College of Medicine, Incheon, Republic of Korea
| | - Jun-Kyu Suh
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Republic of Korea
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16
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Nguyen NM, Song KM, Ghatak K, Kwon MH, Cho IR, Park WH, Yin GN, Ryu JK, Suh JK. MP43-06 INHIBITION OF PRONGF PATHWAY RESTORES ERECTILE FUNCTION THROUGH DUAL ANGIOGENIC AND NEUROTROPHIC EFFECTS IN THE DIABETIC MOUSE. J Urol 2018. [DOI: 10.1016/j.juro.2018.02.1405] [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: 10/17/2022]
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17
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Kim HM, Lee BR, Lee ES, Kwon MH, Huh JH, Kwon BE, Park EK, Chang SY, Kweon MN, Kim PH, Ko HJ, Chung CH. iNKT cells prevent obesity-induced hepatic steatosis in mice in a C-C chemokine receptor 7-dependent manner. Int J Obes (Lond) 2017; 42:270-279. [PMID: 28811651 PMCID: PMC5803573 DOI: 10.1038/ijo.2017.200] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 06/19/2017] [Accepted: 07/21/2017] [Indexed: 02/08/2023]
Abstract
Non-alcoholic fatty liver disease and non-alcoholic steatohepatitis are characterized by an increase in hepatic triglyceride content with infiltration of immune cells, which can cause steatohepatitis and hepatic insulin resistance. C-C chemokine receptor 7 (CCR7) is primarily expressed in immune cells, and CCR7 deficiency leads to the development of multi-organ autoimmunity, chronic renal disease and autoimmune diabetes. Here, we investigated the effect of CCR7 on hepatic steatosis in a mouse model and its underlying mechanism. Our results demonstrated that body and liver weights were higher in the CCR7−/− mice than in the wild-type (WT) mice when they were fed a high-fat diet. Further, glucose tolerance and insulin sensitivity were markedly diminished in CCR7−/− mice. The number of invariant natural killer T (iNKT) cells was reduced in the livers of the CCR7−/− mice. Moreover, liver inflammation was detected in obese CCR7−/− mice, which was ameliorated by the adoptive transfer of hepatic mononuclear cells from WT mice, but not through the transfer of hepatic mononuclear cells from CD1d−/− or interleukin-10-deficient (IL-10−/−) mice. Overall, these results suggest that CCR7+ mononuclear cells in the liver could regulate obesity-induced hepatic steatosis via induction of IL-10-expressing iNKT cells.
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Affiliation(s)
- H M Kim
- Department of Global Medical Science, Yonsei University Wonju College of Medicine, Wonju, Korea.,Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - B R Lee
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - E S Lee
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - M H Kwon
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - J H Huh
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - B-E Kwon
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - E-K Park
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - S-Y Chang
- College of Pharmacy, Ajou University, Suwon, Korea
| | - M-N Kweon
- Mucosal Immunology Laboratory, Department of Convergence Medicine, University of Ulsan College of Medicine/Asan Medical Center, Seoul, Korea
| | - P-H Kim
- Department of Molecular Bioscience, School of Biomedical Science, Kangwon National University, Chuncheon, Korea
| | - H-J Ko
- Laboratory of Microbiology and Immunology, College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - C H Chung
- Department of Global Medical Science, Yonsei University Wonju College of Medicine, Wonju, Korea.,Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
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18
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Lee ES, Lee MY, Kwon MH, Kim HM, Kang JS, Kim YM, Lee EY, Chung CH. Sarpogrelate hydrochloride ameliorates diabetic nephropathy associated with inhibition of macrophage activity and inflammatory reaction in db/db mice. PLoS One 2017. [PMID: 28640832 PMCID: PMC5480859 DOI: 10.1371/journal.pone.0179221] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
The aim of this study was to evaluate the effects of sarpogrelate hydrochloride (SH), a selective serotonin 2A receptor antagonist, on diabetic nephropathy in a type 2 diabetes mouse model. We treated db/m and db/db mice with SH (30 mg/kg/day) for 12 weeks. Rat renal proximal tubule cells (NRK-52E) and mouse macrophages (Raw 264.7) were stimulated by high glucose (30 mM glucose) or LPS (100 ng/ml) with or without SH (20 μM). We found that SH treatment increased serum adiponectin level and decreased urinary albumin, macrophage infiltration to glomeruli, and renal inflammatory and fibrosis signals, which were highly expressed in diabetic mice. Proximal tubule cells treated with high glucose (30 mM) also showed increased inflammatory and fibrosis signals. However, SH (20 μM) treatment reduced these changes. Moreover, SH treatment inhibited LPS-stimulated macrophage migration and activation. These findings suggest that SH ameliorates diabetic nephropathy not only by suppressing macrophage infiltration, but also by anti-inflammatory and anti-fibrotic effects.
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Affiliation(s)
- Eun Soo Lee
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Mi Young Lee
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Mi-Hye Kwon
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Hong Min Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Jeong Suk Kang
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - You Mi Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
| | - Eun Young Lee
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan, Korea
| | - Choon Hee Chung
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, Wonju, Korea
- * E-mail:
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Kwon MH, Park SH, Song KM, Ghatak K, Limanjaya A, Ryu DS, Ock J, Hong SS, Ryu JK, Suh JK. Penile erection induces angiogenic, survival, and antifibrotic signals: molecular events associated with penile erection induced by cavernous nerve stimulation in mice. Int J Urol 2016; 23:614-22. [DOI: 10.1111/iju.13105] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Accepted: 03/17/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Mi-Hye Kwon
- National Research Center for Sexual Medicine and Department of Urology; Inha University School of Medicine; Incheon Korea
| | - Soo-Hwan Park
- National Research Center for Sexual Medicine and Department of Urology; Inha University School of Medicine; Incheon Korea
| | - Kang-Moon Song
- National Research Center for Sexual Medicine and Department of Urology; Inha University School of Medicine; Incheon Korea
| | - Kalyan Ghatak
- National Research Center for Sexual Medicine and Department of Urology; Inha University School of Medicine; Incheon Korea
| | - Anita Limanjaya
- National Research Center for Sexual Medicine and Department of Urology; Inha University School of Medicine; Incheon Korea
| | - Dong-Soo Ryu
- Department of Urology; Sungkyunkwan University School of Medicine; Samsung Changwon Hospital; Changwon Korea
| | - Jiyeon Ock
- National Research Center for Sexual Medicine and Department of Urology; Inha University School of Medicine; Incheon Korea
| | - Soon-Sun Hong
- Department of Medicine; Inha University School of Medicine; Incheon Korea
- Inha Research Institute for Medical Sciences; Inha University School of Medicine; Incheon Korea
| | - Ji-Kan Ryu
- National Research Center for Sexual Medicine and Department of Urology; Inha University School of Medicine; Incheon Korea
- Inha Research Institute for Medical Sciences; Inha University School of Medicine; Incheon Korea
| | - Jun-Kyu Suh
- National Research Center for Sexual Medicine and Department of Urology; Inha University School of Medicine; Incheon Korea
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Das ND, Choi MJ, Kwon MH, Limanjaya A, Ghatak K, Minh NN, Song KM, Park SH, Park WH, Yin GN, Ryu JK, Suh JK. MP89-03 LOCAL DELIVERY OF RECOMBINANT HUMAN HEPATOCYTE GROWTH FACTOR PROTEIN RESCUES ERECTILE FUNCTION BY ENHANCING CAVERNOUS ANGIOGENESIS IN DIABETIC MOUSE. J Urol 2016. [DOI: 10.1016/j.juro.2016.02.2464] [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: 10/22/2022]
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Choi MJ, Song KM, Park JM, Kwon MH, Kwon KD, Park SH, Ryu DS, Ryu JK, Suh JK. Effect of SMAD7 gene overexpression on TGF-β1-induced profibrotic responses in fibroblasts derived from Peyronie's plaque. Asian J Androl 2016; 17:487-92. [PMID: 25532569 PMCID: PMC4430956 DOI: 10.4103/1008-682x.142130] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Transforming growth factor-β1 (TGF-β1) has been identified as one of the most important fibrogenic cytokines associated with Peyronie's disease (PD). The mothers against decapentaplegic homolog 7 (SMAD7) is an inhibitory Smad protein that blocks TGF-β signaling pathway. The aim of this study was to examine the anti-fibrotic effect of the SMAD7 gene in primary fibroblasts derived from human PD plaques. PD fibroblasts were pretreated with the SMAD7 gene and then stimulated with TGF-β1. Treated fibroblasts were used for Western blotting, fluorescent immunocytochemistry, hydroxyproline determination, and terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick-end labeling assays. Overexpression of the SMAD7 gene inhibited TGF-β1-induced phosphorylation and nuclear translocation of SMAD2 and SMAD3, transdifferentiation of fibroblasts into myofibroblasts, and quashed TGF-β1-induced production of extracellular matrix protein and hydroxyproline. Overexpression of the SMAD7 gene decreased the expression of cyclin D1 (a positive cell cycle regulator) and induced the expression of poly (ADP-ribose) polymerase 1, which is known to terminate Smad-mediated transcription, in PD fibroblasts. These findings suggest that the blocking of the TGF-β pathway by use of SMAD7 may be a promising therapeutic strategy for the treatment of PD.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Jun-Kyu Suh
- Department of Urology, National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon 400-711, Korea
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Affiliation(s)
- Mi-Hye Kwon
- Division of Rheumatology, Department of Internal Medicine, Konyang University Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon, Korea
| | - Chung-Il Joung
- Division of Rheumatology, Department of Internal Medicine, Konyang University Myunggok Medical Research Institute, College of Medicine, Konyang University, Daejeon, Korea
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Lee ES, Kim HM, Kang JS, Lee EY, Yadav D, Kwon MH, Kim YM, Kim HS, Chung CH. Oleanolic acid and N-acetylcysteine ameliorate diabetic nephropathy through reduction of oxidative stress and endoplasmic reticulum stress in a type 2 diabetic rat model. Nephrol Dial Transplant 2015; 31:391-400. [PMID: 26567248 DOI: 10.1093/ndt/gfv377] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.8] [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: 07/13/2015] [Accepted: 10/08/2015] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Hyperglycemia-induced endoplasmic reticulum (ER) stress and oxidative stress could be causes of renal fibrosis in diabetes. Oleanolic acid (OA) naturally occurs in fruits and vegetables. It has anti-inflammatory, antihyperlipidemic and antioxidant effects. N-acetylcysteine (NAC) is a precursor of glutathione, which has a strong antioxidant effect in the body. In this study, we investigated the therapeutic effects of OA and NAC in diabetic nephropathy (DN). METHODS Otsuka Long-Evans Tokushima Fatty rats were treated with OA (100 mg/kg/day) or NAC (300 mg/kg/day) for 20 weeks by oral gavage. RESULTS The OA or NAC administration increased blood insulin secretion and superoxide dismutase levels, and decreased triglycerides and urinary albumin/creatinine levels. In the kidney, the damaged renal structure recovered with OA or NAC administration, through an increase in nephrin and endothelial selective adhesion molecules and a decrease in transforming growth factor-β/p-smad2/3 and ER stress. Reactive oxygen species and ER stress were increased by high glucose and ER stress inducers in cultured mesangial cells, and these levels recovered with OA (5.0 μM) or NAC (2.5 mM) treatment. CONCLUSION The findings in this study suggest that OA and NAC have therapeutic effects for DN through an antioxidant effect and ER stress reduction.
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Affiliation(s)
- Eun Soo Lee
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, 162 Ilsan-Dong, Wonju, Gangwon-Do 220-701, Republic of Korea
| | - Hong Min Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, 162 Ilsan-Dong, Wonju, Gangwon-Do 220-701, Republic of Korea
| | - Jeong Suk Kang
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan 330-721, Republic of Korea
| | - Eun Young Lee
- Department of Internal Medicine, Soonchunhyang University Cheonan Hospital, Cheonan 330-721, Republic of Korea
| | - Dhananjay Yadav
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, 162 Ilsan-Dong, Wonju, Gangwon-Do 220-701, Republic of Korea
| | - Mi-Hye Kwon
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, 162 Ilsan-Dong, Wonju, Gangwon-Do 220-701, Republic of Korea
| | - You Mi Kim
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, 162 Ilsan-Dong, Wonju, Gangwon-Do 220-701, Republic of Korea
| | - Hyeon Soo Kim
- Department of Anatomy, Korea University College of Medicine, Seoul 136-701, Republic of Korea
| | - Choon Hee Chung
- Department of Internal Medicine, Yonsei University Wonju College of Medicine, 162 Ilsan-Dong, Wonju, Gangwon-Do 220-701, Republic of Korea
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Yin GN, Das ND, Choi MJ, Song KM, Kwon MH, Ock J, Limanjaya A, Ghatak K, Kim WJ, Hyun JS, Koh GY, Ryu JK, Suh JK. The pericyte as a cellular regulator of penile erection and a novel therapeutic target for erectile dysfunction. Sci Rep 2015; 5:10891. [PMID: 26044953 PMCID: PMC4456662 DOI: 10.1038/srep10891] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 05/05/2015] [Indexed: 02/01/2023] Open
Abstract
Pericytes are known to play critical roles in vascular development and homeostasis. However, the distribution of cavernous pericytes and their roles in penile erection is unclear. Herein we report that the pericytes are abundantly distributed in microvessels of the subtunical area and dorsal nerve bundle of mice, followed by dorsal vein and cavernous sinusoids. We further confirmed the presence of pericytes in human corpus cavernosum tissue and successfully isolated pericytes from mouse penis. Cavernous pericyte contents from diabetic mice and tube formation of cultured pericytes in high glucose condition were greatly reduced compared with those in normal conditions. Suppression of pericyte function with anti-PDGFR-β blocking antibody deteriorated erectile function and tube formation in vivo and in vitro diabetic condition. In contrast, enhanced pericyte function with HGF protein restored cavernous pericyte content in diabetic mice, and significantly decreased cavernous permeability in diabetic mice and in pericytes-endothelial cell co-culture system, which induced significant recovery of erectile function. Overall, these findings showed the presence and distribution of pericytes in the penis of normal or pathologic condition and documented their role in the regulation of cavernous permeability and penile erection, which ultimately explore novel therapeutics of erectile dysfunction targeting pericyte function.
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Affiliation(s)
- Guo Nan Yin
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Nando Dulal Das
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Min Ji Choi
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Kang-Moon Song
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Mi-Hye Kwon
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Jiyeon Ock
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Anita Limanjaya
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Kalyan Ghatak
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Woo Jean Kim
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Jae Seog Hyun
- Department of Urology, Gyeongsang National University School of Medicine, Jinju 660-702, Republic of Korea
| | - Gou Young Koh
- Department of Biological Sciences and Laboratory for Vascular Biology, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea
| | - Ji-Kan Ryu
- 1] National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea [2] Inha Research Institute for Medical Sciences, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Jun-Kyu Suh
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
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Yin GN, Dulal Das N, Choi MJ, Song KM, Kwon MH, Ock J, Limanjaya A, Ghatak K, Kim WJ, Park SH, Hyun JS, Ryu JK, Suh JK. MP52-03 THE PERICYTES AS A CELLULAR REGULATOR OF PENILE ERECTION AND A NOVEL THERAPEUTIC TARGET FOR ERECTILE DYSFUNCTION. J Urol 2015. [DOI: 10.1016/j.juro.2015.02.1720] [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: 10/23/2022]
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Ryu JK, Kim WJ, Koh YJ, Piao S, Jin HR, Lee SW, Choi MJ, Shin HY, Kwon MH, Jung K, Koh GY, Suh JK. Designed angiopoietin-1 variant, COMP-angiopoietin-1, rescues erectile function through healthy cavernous angiogenesis in a hypercholesterolemic mouse. Sci Rep 2015; 5:9222. [PMID: 25783805 PMCID: PMC4363832 DOI: 10.1038/srep09222] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2014] [Accepted: 02/20/2015] [Indexed: 01/27/2023] Open
Abstract
Despite the advent of oral phosphodiesterase-5 inhibitors, curative treatment for erectile dysfunction (ED) remains unavailable. Recently, the link between ED and cardiovascular disease was unveiled and the main etiology of ED was found to be vasculogenic. Therefore, neovascularization is a promising strategy for curing ED. Angiopoietin-1 (Ang1) is an angiogenic growth factor that promotes the generation of stable and functional vasculature. Here, we demonstrate that local delivery of the soluble, stable, and potent Ang1 variant, COMP-Ang1 gene or protein, into the penises of hypercholesterolemic mice increases cavernous angiogenesis, eNOS phosphorylation, and cGMP expression, resulting in full recovery of erectile function and cavernous blood flow up to 8 weeks after treatment. COMP-Ang1-induced promotion of cavernous angiogenesis and erectile function was abolished in Nos3-/- mice and in the presence of the NOS inhibitor, L-NAME. COMP-Ang1 also restored the integrity of endothelial cell-cell junction by down-regulating the expression of histone deacetylase 2 in the penis of hypercholesterolemic mice and in primary cultured mouse cavernous endothelial cells. These findings constitute a new paradigm toward curative treatment of both cavernous angiopathy and ED.
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Affiliation(s)
- Ji-Kan Ryu
- 1] National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea [2] Inha Research Institute for Medical Sciences, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Woo Jean Kim
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Young Jun Koh
- National Research Laboratory of Vascular Biology and Stem Cells and Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea
| | - Shuguang Piao
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Hai-Rong Jin
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Sae-Won Lee
- 1] Department of Internal Medicine and Innovative Research Institute for Cell Therapy, Seoul National University Hospital, Seoul, Republic of Korea [2] Biomedical Research Institute, Seoul National University Hospital, Seoul, Republic of Korea
| | - Min Ji Choi
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Hwa-Yean Shin
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Mi-Hye Kwon
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
| | - Keehoon Jung
- National Research Laboratory of Vascular Biology and Stem Cells and Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea
| | - Gou Young Koh
- National Research Laboratory of Vascular Biology and Stem Cells and Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Republic of Korea
| | - Jun-Kyu Suh
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon 400-711, Republic of Korea
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Song KM, Choi MJ, Kwon MH, Ghatak K, Park SH, Ryu DS, Ryu JK, Suh JK. Optimizing in vivo gene transfer into mouse corpus cavernosum by use of surface electroporation. Korean J Urol 2015; 56:197-204. [PMID: 25763123 PMCID: PMC4355430 DOI: 10.4111/kju.2015.56.3.197] [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: 12/12/2014] [Accepted: 01/08/2015] [Indexed: 11/22/2022] Open
Abstract
Purpose Electroporation is known to enhance the efficiency of gene transfer through a transient increase in cell membrane permeability. The aim of this study was to determine the optimal conditions for in vivo electroporation-mediated gene delivery into mouse corpus cavernosum. Materials and Methods Diabetes was induced in C57BL/6 mice by intraperitoneal injections of streptozotocin. After intracavernous injection of pCMV-Luc (100 µg/40 µL), different electroporation settings (5-50 V, 8-16 pulses with a duration of 40-100 ms) were applied to the penis to establish the optimal conditions for electroporation. Gene expression was evaluated by luciferase assay. We also assessed the undesired consequences of electroporation by visual inspection and hematoxylin-eosin staining of penile tissue. Results Electroporation profoundly induced gene expression in the corpus cavernosum tissue of normal mice in a voltage-dependent manner. We observed electrical burn scars in the penis of normal mice who received electroporation with eight 40-ms pulses at a voltage of 50 V and sixteen 40-ms pulses, eight 100-ms pulses, and sixteen 100-ms pulses at a voltage of 30 V. No detectable burn scars were noted in normal mice stimulated with eight 40-ms pulses at a voltage of 30 V. Electroporation also significantly induced gene expression in diabetic mice stimulated with 40-ms pulse at a voltage of 30 V without injury to the penis. Conclusions We have established the optimal electroporation conditions for maximizing gene transfer into the corpus cavernosum of mice while avoiding damage to the erectile tissue. The electroporation-mediated gene delivery technique will be a valuable tool for gene therapy in the field of erectile dysfunction.
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Affiliation(s)
- Kang-Moon Song
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Min Ji Choi
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Mi-Hye Kwon
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Kalyan Ghatak
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Soo-Hwan Park
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Dong-Soo Ryu
- Department of Urology, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, Korea
| | - Ji-Kan Ryu
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
| | - Jun-Kyu Suh
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
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Kwon MH, Jung YH, Lee KO, Sohn JS, Joung CI. A Case of Cryptococcal Meningoencephalitis Mimicking Lupus Psychosis. J Rheum Dis 2015. [DOI: 10.4078/jrd.2015.22.5.332] [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: 11/22/2022]
Affiliation(s)
- Mi-Hye Kwon
- Department of Internal Medicine, Konyang University College of Medicine, Daejeon, Korea
| | - Young-Hee Jung
- Department of Internal Medicine, Konyang University College of Medicine, Daejeon, Korea
| | - Kee-Ook Lee
- Department of Neurology, Konyang University College of Medicine, Daejeon, Korea
| | - Jang-Shin Sohn
- Department of Pathology, Konyang University College of Medicine, Daejeon, Korea
| | - Chung-Il Joung
- Department of Internal Medicine, Konyang University College of Medicine, Daejeon, Korea
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29
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Kwon KD, Choi MJ, Park JM, Song KM, Kwon MH, Batbold D, Yin GN, Kim WJ, Ryu JK, Suh JK. Silencing histone deacetylase 2 using small hairpin RNA induces regression of fibrotic plaque in a rat model of Peyronie's disease. BJU Int 2014; 114:926-36. [DOI: 10.1111/bju.12812] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ki-Dong Kwon
- National Research Center for Sexual Medicine; Department of Urology; Inha University School of Medicine; Incheon 400-711 Korea
| | - Min Ji Choi
- National Research Center for Sexual Medicine; Department of Urology; Inha University School of Medicine; Incheon 400-711 Korea
| | - Jin-Mi Park
- National Research Center for Sexual Medicine; Department of Urology; Inha University School of Medicine; Incheon 400-711 Korea
| | - Kang-Moon Song
- National Research Center for Sexual Medicine; Department of Urology; Inha University School of Medicine; Incheon 400-711 Korea
| | - Mi-Hye Kwon
- National Research Center for Sexual Medicine; Department of Urology; Inha University School of Medicine; Incheon 400-711 Korea
| | - Dulguun Batbold
- National Research Center for Sexual Medicine; Department of Urology; Inha University School of Medicine; Incheon 400-711 Korea
| | - Guo Nan Yin
- National Research Center for Sexual Medicine; Department of Urology; Inha University School of Medicine; Incheon 400-711 Korea
| | - Woo Jean Kim
- National Research Center for Sexual Medicine; Department of Urology; Inha University School of Medicine; Incheon 400-711 Korea
| | - Ji-Kan Ryu
- National Research Center for Sexual Medicine; Department of Urology; Inha University School of Medicine; Incheon 400-711 Korea
| | - Jun-Kyu Suh
- National Research Center for Sexual Medicine; Department of Urology; Inha University School of Medicine; Incheon 400-711 Korea
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Lim YC, Bhatt MP, Kwon MH, Park D, Na S, Kim YM, Ha KS. Proinsulin C-peptide prevents impaired wound healing by activating angiogenesis in diabetes. J Invest Dermatol 2014; 135:269-278. [PMID: 25007043 DOI: 10.1038/jid.2014.285] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2013] [Revised: 06/05/2014] [Accepted: 06/13/2014] [Indexed: 12/28/2022]
Abstract
Diabetes mellitus disrupts wound repair and leads to the development of chronic wounds, likely due to impaired angiogenesis. We previously demonstrated that human proinsulin C-peptide can protect against vasculopathy in diabetes; however, its role in impaired wound healing in diabetes has not been studied. We investigated the potential roles of C-peptide in protecting against impaired wound healing by inducing angiogenesis using streptozotocin-induced diabetic mice and human umbilical vein endothelial cells. Diabetes delayed wound healing in mouse skin, and C-peptide supplement using osmotic pumps significantly increased the rate of skin wound closure in diabetic mice. Furthermore, C-peptide induced endothelial cell migration and tube formation in dose-dependent manners, with maximal effect at 0.5 nM. These effects were mediated through activation of extracellular signal-regulated kinase 1/2 and Akt, as well as nitric oxide formation. C-peptide-enhanced angiogenesis in vivo was demonstrated by immunohistochemistry and Matrigel plug assays. Our findings highlight an angiogenic role of C-peptide and its ability to protect against impaired wound healing, which may have significant implications in reparative and therapeutic angiogenesis in diabetes. Thus, C-peptide replacement is a promising therapy for impaired angiogenesis and delayed wound healing in diabetes.
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Affiliation(s)
- Young-Cheol Lim
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Mahendra Prasad Bhatt
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Mi-Hye Kwon
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Donghyun Park
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - SungHun Na
- Department of Obstetrics and Gynecology, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Young-Myeong Kim
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Kwon-Soo Ha
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea.
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Das ND, Song KM, Yin GN, Batbold D, Kwon MH, Kwon KD, Kim WJ, Kim YS, Ryu JK, Suh JK. Xenogenic Transplantation of Human Breast Adipose-Derived Stromal Vascular Fraction Enhances Recovery of Erectile Function in Diabetic Mice1. Biol Reprod 2014; 90:66. [DOI: 10.1095/biolreprod.113.115113] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
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Shang H, Hyun KA, Kwon MH, Ha KS, Joo C, Jung HI. Microfluidic sorting of fluorescently activated cells depending on gene expression level. Electrophoresis 2013; 34:3103-10. [DOI: 10.1002/elps.201300300] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2013] [Revised: 08/22/2013] [Accepted: 08/30/2013] [Indexed: 12/23/2022]
Affiliation(s)
- Haifeng Shang
- School of Mechanical Engineering; Yonsei University; Seodaemun-gu Seoul South Korea
| | - Kyung-A. Hyun
- School of Mechanical Engineering; Yonsei University; Seodaemun-gu Seoul South Korea
| | - Mi-Hye Kwon
- Department of Molecular & Cellular Biochemistry; Kangwon National University College of Medicine; Chunchon Kangwon-do South Korea
| | - Kwon-Soo Ha
- Department of Molecular & Cellular Biochemistry; Kangwon National University College of Medicine; Chunchon Kangwon-do South Korea
| | - Chulmin Joo
- School of Mechanical Engineering; Yonsei University; Seodaemun-gu Seoul South Korea
| | - Hyo-Il Jung
- School of Mechanical Engineering; Yonsei University; Seodaemun-gu Seoul South Korea
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Lim YC, Bhatt MP, Kwon MH, Park D, Lee S, Choe J, Hwang J, Kim YM, Ha KS. Prevention of VEGF-mediated microvascular permeability by C-peptide in diabetic mice. Cardiovasc Res 2013; 101:155-64. [PMID: 24142430 DOI: 10.1093/cvr/cvt238] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
AIMS Human C-peptide has a beneficial effect on the prevention of diabetic neuropathy, nephropathy, and vascular complications; however, its role in protection against increased vascular permeability in diabetes remains unclear. Our purpose was to explore the potential protective role of C-peptide against microvascular permeability mediated by vascular endothelial growth factor (VEGF)-induced reactive oxygen species (ROS) generation in diabetes. METHODS AND RESULTS Generation of intracellular ROS, real-time changes in intracellular Ca(2+), ROS-dependent stress fibre formation, and the disassembly of the adherens junctions were studied by a confocal microscopy in human umbilical vein endothelial cells (HUVECs). VEGF-induced vascular leakage was investigated in the skin of diabetic mice using a Miles vascular permeability assay. Microvascular leakage in the retina of streptozotocin diabetic mice was investigated using a confocal microscopy after left ventricle injection of fluorescein isothiocyanate (FITC)-dextran. C-peptide inhibited the VEGF-induced ROS generation, stress fibre formation, disassembly of vascular endothelial cadherin, and endothelial permeability in HUVECs. Intradermal injection of C-peptide prevented VEGF-induced vascular leakage. Consistent with this, intravitreal injection of C-peptide prevented the extravasation of FITC-dextran in the retinas of diabetic mice, which was also prevented by anti-VEGF antibody and ROS scavengers in diabetic mice. Conclusions/interpretation C-peptide prevents VEGF-induced microvascular permeability by inhibiting ROS-mediated intracellular events in diabetic mice, suggesting that C-peptide replacement is a promising therapeutic strategy to prevent diabetic retinopathy.
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Affiliation(s)
- Young-Cheol Lim
- Department of Molecular and Cellular Biochemistry, Institute of Medical Scicence, Kangwon National University School of Medicine, Kangwon-do 200-701, Korea
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Song KM, Chung JS, Choi MJ, Jin HR, Yin GN, Kwon MH, Park JM, Kim WJ, Lee SJ, Kim SJ, Ryu JK, Suh JK. Effectiveness of intracavernous delivery of adenovirus encoding Smad7 gene on erectile function in a mouse model of cavernous nerve injury. J Sex Med 2013; 11:51-63. [PMID: 24433558 DOI: 10.1111/jsm.12329] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [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: 01/01/2023]
Abstract
INTRODUCTION Men with erectile dysfunction (ED) respond poorly to oral phosphodiesterase-5 inhibitors following radical prostatectomy. Recent studies have reported that up-regulation of transforming growth factor-β1 (TGF-β1) and activation of the Smad signaling pathway play important roles in cavernous fibrosis and in the deterioration of erectile function in a mouse model of cavernous nerve injury (CNI) and in patients with spinal cord injury. The mothers against decapentaplegic homolog 7 (Smad7) is known to inhibit the phosphorylation of Smad2 and Smad3. AIM To investigate the effectiveness of adenoviruses encoding Smad7 gene (Ad-Smad7) on erectile function in a mouse model of CNI. METHODS Twelve-week-old C57BL/6J mice were used and distributed into 7 groups: sham operation group, untreated CNI group, and CNI groups receiving a single intracavernous injection of adenovirus encoding LacZ (1 × 10(8) virus particles [vp]/20 μL) or adenovirus encoding Smad7 (Ad-Smad7; 1 × 10(7), 1 × 10(8), 2 × 10(8), or 1 × 10(9) vp/20 μL). MAIN OUTCOME MEASURES Two weeks after bilateral cavernous nerve crushing and treatment, erectile function was measured by electrical stimulation of the cavernous nerve. The penis was harvested for histologic examinations and Western blot analysis. RESULTS The highest erectile response was noted in CNI mice treated with Ad-Smad7 at a dose of 1 × 10(8) vp, which reached up to 82-85% of sham control values. Local delivery of Ad-Smad7 significantly decreased endothelial cell apoptosis and the production of extracellular matrix proteins, including plasminogen activator inhibitor-1, fibronectin, collagen I, and collagen IV, and induced endothelial nitric oxide synthase phosphorylation in the corpus cavernosum tissue of CNI mice. CONCLUSION The adenovirus-mediated gene transfer of Smad7 successfully restored erectile function by enhancing endothelial cell function and through antifibrotic effects. These findings suggest that inhibition of the TGF-β signaling pathway by use of Smad7 may represent a promising therapeutic strategy for ED induced by radical prostatectomy.
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Affiliation(s)
- Kang Moon Song
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
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Kwon MH, Ryu JK, Kim WJ, Jin HR, Song KM, Kwon KD, Batbold D, Yin GN, Koh GY, Suh JK. Effect of intracavernous administration of angiopoietin-4 on erectile function in the streptozotocin-induced diabetic mouse. J Sex Med 2013; 10:2912-27. [PMID: 23937122 DOI: 10.1111/jsm.12278] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Erectile dysfunction (ED) is a highly prevalent complication of diabetes, and the severity of endothelial dysfunction is one of the most important factors in reduced responsiveness to oral phosphodiesterase type 5 inhibitors. AIM To study the effects of human angiopoietin-4 (Ang-4) protein on erectile function in diabetic mice. METHODS Diabetes was induced by intraperitoneal injection of streptozotocin into 8-week-old C57BL/6J male mice. At 8 weeks after the induction of diabetes, the animals were divided into four groups: control nondiabetic mice and diabetic mice receiving two successive intracavernous injections of phosphate buffered saline (days -3 and 0), a single intracavernous injection of Ang-4 protein (day 0), or two successive intracavernous injections of Ang-4 protein (days -3 and 0). MAIN OUTCOME MEASURES One week after treatment, we measured erectile function by electrical stimulation of the cavernous nerve. The penis was harvested and stained with hydroethidine or antibodies to Ang-4, platelet/endothelial cell adhesion molecule-1, and phosphorylated endothelial nitric oxide synthase (eNOS). We also determined the differential expression of Ang-4 in cavernous tissue in the control and diabetic mice. The effect of Ang-4 protein on the phosphorylation of Tie-2, Akt, and eNOS was determined in human umbilical vein endothelial cells (HUVECs) by Western blot. RESULTS The cavernous expression of Ang-4 was downregulated in diabetic mice; Ang-4 was mainly expressed in endothelial cells. Local delivery of Ang-4 protein significantly increased cavernous endothelial content, induced eNOS phosphorylation, and decreased the generation of superoxide anion and apoptosis in diabetic mice. Ang-4 protein strongly increased the phosphorylation of Tie-2, Akt, and eNOS in HUVECs. Repeated intracavernous injections of Ang-4 induced significant restoration of erectile function in diabetic mice (87% of control values), whereas a single intracavernous injection of Ang-4 protein elicited modest improvement. CONCLUSIONS Cavernous endothelial regeneration by use of Ang-4 protein may have potential for the treatment of vascular disease-induced ED, such as diabetic ED.
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Affiliation(s)
- Mi-Hye Kwon
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
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Kwon MH, Tuvshintur B, Kim WJ, Jin HR, Yin GN, Song KM, Choi MJ, Kwon KD, Batbold D, Ryu JK, Suh JK. Expression of the apelin-APJ pathway and effects on erectile function in a mouse model of vasculogenic erectile dysfunction. J Sex Med 2013; 10:2928-41. [PMID: 23578329 DOI: 10.1111/jsm.12158] [Citation(s) in RCA: 11] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
INTRODUCTION Much attention has recently been focused on therapeutic angiogenesis as a treatment for erectile dysfunction (ED). The apelin and apelin receptor (APJ) system is known to cause endothelium-dependent vasodilatation and to be involved in angiogenesis. AIM To examine the differential expression of apelin and APJ in animal models of vasculogenic ED and to determine whether and how enhancement of apelin-APJ signaling restores erectile function in hypercholesterolemic mice. METHODS Acute cavernous ischemia was induced in C57BL/6J mice by bilateral occlusion of internal iliac arteries, and chronic vasculogenic ED was induced by feeding a high-cholesterol diet or by intraperitoneal injection of streptozotocin. MAIN OUTCOME MEASURES Messenger RNA (mRNA) levels of apelin and APJ were determined in cavernous tissue of each vasculogenic ED model by semiquantitative reverse transcriptase-polymerase chain reaction (RT-PCR). We evaluated erectile function by electrical stimulation of the cavernous nerve in hypercholesterolemic mice 1, 3, 7, and 14 days after a single intracavernous injection of apelin protein (5 μg/20 μL). The penis was harvested for histologic examinations and Western blot analysis. RESULTS The cavernous mRNA expression of apelin and APJ was up-regulated in acute ischemia model and down-regulated in chronic vasculogenic ED models. A significant restoration of erectile function was noted 1 day after injection of apelin protein into the penis of hypercholesterolemic mice; however, erectile function returned to baseline values thereafter. The beneficial effects of apelin on erectile function resulted mainly from an activation of endothelial nitric oxide synthase and increase in nitric oxide bioavailability through reduction in reactive oxygen species-mediated endothelial apoptosis rather than through direct endothelial cell proliferation. CONCLUSION These findings suggest that apelin-APJ signaling is a potential therapeutic target in the treatment of vasculogenic ED. Further studies are needed to develop a potent agonist for APJ and to determine the role of repeated dosing of apelin on long-term recovery of erectile function.
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Affiliation(s)
- Mi-Hye Kwon
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
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Yin GN, Kim WJ, Jin HR, Kwon MH, Song KM, Choi MJ, Park JM, Das ND, Kwon KD, Batbold D, Kim KW, Ryu JK, Suh JK. Nerve injury-induced protein 1 (Ninjurin-1) is a novel therapeutic target for cavernous nerve injury-induced erectile dysfunction in mice. J Sex Med 2013; 10:1488-501. [PMID: 23551591 DOI: 10.1111/jsm.12129] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Radical prostatectomy for prostate cancer can not only induce cavernous nerve injury (CNI) but also result in structural changes in the cavernous tissues. Nerve injury-induced protein 1, Ninjurin-1 (Ninj1), is known to be involved in neuroinflammatory processes and to be related to vascular regression during the embryonic period. AIM The study aims to determine whether and how Ninj1 neutralizing antibody (Ninj1-Ab) restores erectile function in mice with CNI. METHODS Twelve-week-old C57BL/6J mice were used and distributed into four groups: sham operation group and CNI groups receiving a single intracavernous injection of immunoglobulin G (IgG) control antibody, low-dose Ninj1-Ab (1.0 μg/20 μL), or high-dose Ninj1-Ab (2.5 μg/20 μL). MAIN OUTCOME MEASURES One week after bilateral cavernous nerve crush, erectile function was measured by electrical stimulation of the cavernous nerve. The penis was harvested for histologic examinations and Western blot analysis. RESULTS The cavernous expression of Ninj1 protein was upregulated up to 7 days after CNI and returned to baseline levels thereafter. Local delivery of Ninj1-Ab significantly increased penile neuronal nitric oxide synthase and neurofilament contents, induced cavernous endothelial proliferation and phosphorylation of Akt and endothelial nitric oxide synthase, and decreased endothelial cell apoptosis in the CNI mice by upregulating angiopoietin-1 and downregulating angiopoietin-2. High-dose Ninj1-Ab induced profound restoration of erectile function in the CNI mice (91% of sham control values), whereas low-dose Ninj1-Ab elicited partial improvement. CONCLUSION The dual neurotrophic and angiogenic effects of Ninj1 blockade may provide a good opportunity for treating erectile dysfunction resulting from radical prostatectomy.
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Affiliation(s)
- Guo Nan Yin
- Department of Urology, National Research Center for Sexual Medicine, Inha University School of Medicine, Incheon, Korea
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Ryu JK, Jin HR, Yin GN, Kwon MH, Song KM, Choi MJ, Park JM, Das ND, Kwon KD, Batbold D, Lee T, Gao ZL, Kim KW, Kim WJ, Suh JK. Erectile dysfunction precedes other systemic vascular diseases due to incompetent cavernous endothelial cell-cell junctions. J Urol 2013; 190:779-89. [PMID: 23454152 DOI: 10.1016/j.juro.2013.02.100] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2013] [Indexed: 02/06/2023]
Abstract
PURPOSE Erectile dysfunction is often a harbinger of cardiovascular disease. We sought to gain mechanistic insight at the cellular and molecular levels into why erectile dysfunction precedes the clinical consequences of cardiovascular disease. MATERIALS AND METHODS Diabetes was induced by intraperitoneal streptozotocin injection in 8-week-old C57BL/6J mice. At 8 weeks after diabetes induction, we determined the expression of endothelial cell-cell junction proteins and vascular endothelial permeability in the penis, heart and hind limb by systemic injection of various vascular space markers (350 Da to 2,000 kDa) or by immunohistochemical staining with antibody to oxidized low density lipoprotein. We also investigated the effect of recombinant Ang1 protein on cavernous endothelial permeability. RESULTS Alterations in the integrity of the endothelial cell-cell junction, including a decrease in endothelial cell-cell junction proteins and an increase in vascular permeability to fluorescent tracers or oxidized low density lipoprotein, were prominent in the cavernous tissue of diabetic mice. In contrast, no significant changes in endothelial cell-cell junction proteins or vascular permeability were noted in heart or hind limb tissue according to the diabetic condition. Intracavernous injection of Ang1 protein, an anti-permeability factor, significantly decreased cavernous endothelial permeability to oxidized low density lipoprotein by restoring endothelial cell-cell junction proteins in diabetic mice. CONCLUSIONS The incompetent cavernous endothelial cell-cell junction in the diabetic condition provides an important clue to why erectile dysfunction is highly prevalent and often precedes other systemic vascular diseases.
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Affiliation(s)
- Ji-Kan Ryu
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Republic of Korea
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Kwon MH, Lee CS, Cho SW, Joung CI. Multiple Gastric Ulcers as a Manifestation of Cytomegalovirus Infection in a Patient with Adult-onset Still's Disease. J Rheum Dis 2013. [DOI: 10.4078/jrd.2013.20.3.172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Mi-Hye Kwon
- Department of Internal Medicine, Konyang University Hospital, Daejeon, Korea
| | - Choong-Seup Lee
- Department of Internal Medicine, Konyang University Hospital, Daejeon, Korea
| | - Sung-Woo Cho
- Department of Internal Medicine, Konyang University Hospital, Daejeon, Korea
| | - Chung-Il Joung
- Department of Internal Medicine, Konyang University Hospital, Daejeon, Korea
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Ryu JK, Tumurbaatar M, Jin HR, Kim WJ, Kwon MH, Piao S, Choi MJ, Yin GN, Song KM, Kang YJ, Koh YJ, Koh GY, Suh JK. Intracavernous delivery of freshly isolated stromal vascular fraction rescues erectile function by enhancing endothelial regeneration in the streptozotocin-induced diabetic mouse. J Sex Med 2012; 9:3051-65. [PMID: 23088258 DOI: 10.1111/j.1743-6109.2012.02962.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
INTRODUCTION Men with diabetic erectile dysfunction (ED) often have severe endothelial dysfunction and respond poorly to oral phosphodiesterase-5 inhibitors. AIM To examine whether and how freshly isolated stromal vascular fraction (SVF) promotes cavernous endothelial regeneration and restores erectile function in diabetic animals. METHODS Eight-week-old C57BL/6J mice were used. Diabetes was induced by intraperitoneal injection of streptozotocin. SVF was isolated from epididymal adipose tissues of green fluorescence protein transgenic mice. At 8 weeks after the induction of diabetes, the animals were divided into six groups: controls, diabetic mice, and diabetic mice treated with a single intracavernous injection of phosphate-buffered saline (PBS) or SVF (1 × 10(4) cells, 1 × 10(5) cells, or 2 × 10(5) cells/20 µL, respectively). MAIN OUTCOME MEASURES Two weeks later, erectile function was measured by cavernous nerve stimulation. The penis was stained with antibodies to CD31, CD34, phosphohistone H3, phospho-endothelial nitric oxide synthase (eNOS), and vascular endothelial growth factor-A (VEGF-A). We also performed Western blot for phospho-eNOS and eNOS, and determined cyclic guanosine monophosphate (cGMP) concentration in the corpus cavernosum tissue. RESULTS Significant improvement in erectile function was noted in diabetic mice treated with SVF at concentrations of 1 × 10(5) and 2 × 10(5) cells, which reached up to 82% of the control values. Local delivery of SVF significantly increased cavernous endothelial cell proliferation, eNOS phosphorylation, and cGMP expression compared with that in the untreated group and the PBS-treated diabetic group. Intracavernous injection of SVF increased cavernous VEGF-A expression and induced recruitment of CD34(+)CD31(-) progenitor cells. Some SVF underwent differentiation into cavernous endothelial cells. SVF-induced promotion of cavernous angiogenesis and erectile function was abolished in the presence of VEGF-Trap, a soluble VEGF-A neutralizing antibody. CONCLUSION The results support the concept of cavernous endothelial regeneration by use of SVF as a curative therapy for diabetic ED.
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Affiliation(s)
- Ji-Kan Ryu
- National Research Center for Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
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Ryu JK, Lee M, Choi MJ, Kim HA, Jin HR, Kim WJ, Yin GN, Song KM, Kwon MH, Suh JK. Gene therapy with an erythropoietin enhancer-mediated, hypoxia-inducible gene expression system in the corpus cavernosum of mice with high-cholesterol diet-induced erectile dysfunction. ACTA ACUST UNITED AC 2012; 33:845-53. [PMID: 22403284 DOI: 10.2164/jandrol.111.016014] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Cavernous hypoxia is an important factor in the pathogenesis of vasculogenic erectile dysfunction (ED). Therefore, the hypoxia-inducible gene expression system can be exploited as gene therapy for vasculogenic ED. This study was undertaken to examine the effectiveness of a hypoxia-inducible gene expression system, namely, the RTP801 promoter or the erythropoietin enhancer, in a mouse model of hypercholesterolemic ED in vivo and in primary cultured mouse cavernous endothelial cells in vitro. Two-month-old male C57BL/6 mice were fed a diet containing 4% cholesterol and 1% cholic acid, and age-matched control animals were fed a normal diet for 3 months. Mouse cavernous endothelial cells were isolated and cultured under normoxic or hypoxic conditions. After treatment of animals or endothelial cells with pSV-Luc, pRTP801-Luc, or pEpo-SV-Luc vector, gene expression was evaluated by luciferase assay, and the gene expression area was evaluated by immunohistochemistry. Plasmids pRTP801-Luc and pEpo-SV-Luc induced gene expression significantly in the hypercholesterolemic mice and in cavernous endothelial cells under hypoxia, and the highest gene expression was noted in the group treated with pEpo-SV-Luc. Gene expression was higher for more than 7 days in the hypercholesterolemic mice injected with pEpo-SV-Luc than in mice injected with pSV-Luc. As shown by immunohistochemistry, the gene expression area was also greater in the pEpo-SV-Luc group than in the pSV-Luc group, but the difference was not as great as that in luciferase activity. The hypoxia-specific gene expression system could be a valuable tool for facilitating gene delivery into ischemic corpus cavernosum tissue resulting from vascular causes.
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Affiliation(s)
- Ji-Kan Ryu
- Laboratory of Regenerative Sexual Medicine and Department of Urology, Inha University School of Medicine, 7-206, 3rd St, Shinheung-Dong, Jung-Gu, Incheon 400-711, Republic of Korea
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Kwon MH, Jung SH, Kim YM, Ha KS. Simultaneous Activity Assay of Two Transglutaminase Isozymes, Blood Coagulation Factor XIII and Transglutaminase 2, by Use of Fibrinogen Arrays. Anal Chem 2011; 83:8718-24. [DOI: 10.1021/ac202178g] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mi-Hye Kwon
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do 200-701, South Korea
| | - Se-Hui Jung
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do 200-701, South Korea
| | - Young-Myeong Kim
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do 200-701, South Korea
| | - Kwon-Soo Ha
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, Kangwon National University School of Medicine, Chuncheon, Kangwon-Do 200-701, South Korea
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Shin TY, Ryu JK, Jin HR, Piao S, Tumurbaatar M, Yin GN, Shin SH, Kwon MH, Song KM, Fang ZH, Han JY, Kim WJ, Suh JK. Increased Cavernous Expression of Transforming Growth Factor-β1 and Activation of the Smad Signaling Pathway Affects Erectile Dysfunction in Men with Spinal Cord Injury. J Sex Med 2011; 8:1454-62. [DOI: 10.1111/j.1743-6109.2010.02049.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Jin HR, Kim WJ, Song JS, Piao S, Tumurbaatar M, Shin SH, Choi MJ, Tuvshintur B, Song KM, Kwon MH, Yin GN, Koh GY, Ryu JK, Suh JK. Intracavernous delivery of synthetic angiopoietin-1 protein as a novel therapeutic strategy for erectile dysfunction in the type II diabetic db/db mouse. J Sex Med 2011; 7:3635-46. [PMID: 20584113 DOI: 10.1111/j.1743-6109.2010.01925.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
INTRODUCTION Patients with erectile dysfunction (ED) associated with type II diabetes often have impaired endothelial function and tend to respond poorly to oral phosphodiesterase type 5 inhibitors. Therefore, neovascularization is a promising strategy for curing diabetic ED. AIM To determine the effectiveness of a soluble, stable, and potent angiopoietin-1 (Ang1) variant, cartilage oligomeric matrix protein (COMP)-Ang1, in promoting cavernous angiogenesis and erectile function in a mouse model of type II diabetic ED. Methods. Sixteen-week-old male db/db mice (in which obesity and type II diabetes are caused by a mutation in the leptin receptor) and control C57BL/6J mice were used and divided into four groups (N=14 per group): age-matched controls; db/db mice receiving two successive intracavernous injections of phosphate-buffered saline (PBS) (days -3 and 0; 20 µL); db/db mice receiving a single intracavernous injection of COMP-Ang1 protein (day 0; 5.8 µg/20 µL); and db/db mice receiving two successive intracavernous injections of COMP-Ang1 protein (days -3 and 0; 5.8 µg/20 µL). MAIN OUTCOME MEASURES Two weeks later, erectile function was measured by electrical stimulation of the cavernous nerve. The penis was then harvested and stained with antibodies to platelet/endothelial cell adhesion molecule-1 (PECAM-1) (endothelial cell marker), phosphohistone H3 (PH3, a nuclear protein indicative of cell proliferation), phospho-endothelial nitric oxide synthase (eNOS), and eNOS. Penis specimens from a separate group of animals were used for cyclic guanosine monophosphate (cGMP) and cyclic adenosine monophosphate (cAMP) quantification. RESULTS Local delivery of COMP-Ang1 protein significantly increased eNOS phosphorylation and cGMP and cAMP expression compared with that in the group treated with PBS. Repeated intracavernous injections of COMP-Ang1 protein completely restored erectile function and cavernous endothelial content through enhanced cavernous neoangiogenesis as evaluated by PECAM-1 and PH3 immunohistochemistry and terminal deoxynucleotidyl transferase-mediated deoxyuridine triphosphate nick end labeling assay, whereas a single injection of COMP-Ang1 protein elicited partial improvement. CONCLUSION Cavernous neovascularization using recombinant Ang1 protein is a novel therapeutic strategy for the treatment of ED resulting from type II diabetes.
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Affiliation(s)
- Hai-Rong Jin
- National Research Laboratory of Regenerative Sexual Medicine and Department of Urology, Inha University School of Medicine, Incheon, Korea
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Kwon MH, Kong DH, Jung SH, Suh IB, Kim YM, Ha KS. Rapid Determination of Blood Coagulation Factor XIII Activity Using Protein Arrays for Serodiagnosis of Human Plasma. Anal Chem 2011; 83:2317-23. [DOI: 10.1021/ac1032275] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Mi-Hye Kwon
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, and ‡Department of Laboratory Medicine, Kangwon National University School of Medicine, Chuncheon, Kangwon-do 200-701, South Korea
| | - Deok-Hoon Kong
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, and ‡Department of Laboratory Medicine, Kangwon National University School of Medicine, Chuncheon, Kangwon-do 200-701, South Korea
| | - Se-Hui Jung
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, and ‡Department of Laboratory Medicine, Kangwon National University School of Medicine, Chuncheon, Kangwon-do 200-701, South Korea
| | - In-Bum Suh
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, and ‡Department of Laboratory Medicine, Kangwon National University School of Medicine, Chuncheon, Kangwon-do 200-701, South Korea
| | - Young-Myeong Kim
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, and ‡Department of Laboratory Medicine, Kangwon National University School of Medicine, Chuncheon, Kangwon-do 200-701, South Korea
| | - Kwon-Soo Ha
- Department of Molecular and Cellular Biochemistry and Institute of Medical Science, and ‡Department of Laboratory Medicine, Kangwon National University School of Medicine, Chuncheon, Kangwon-do 200-701, South Korea
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Piao S, Choi MJ, Tumurbaatar M, Kim WJ, Jin HR, Shin SH, Tuvshintur B, Yin GN, Song JS, Kwon MH, Lee SJ, Han JY, Kim SJ, Ryu JK, Suh JK. Transforming Growth Factor (TGF)-β Type I Receptor Kinase (ALK5) Inhibitor Alleviates Profibrotic TGF-β1 Responses in Fibroblasts Derived from Peyronie's Plaque. J Sex Med 2010; 7:3385-95. [DOI: 10.1111/j.1743-6109.2010.01753.x] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Park JY, Jung SH, Jung JW, Kwon MH, Yoo JO, Kim YM, Ha KS. A novel array-based assay of in situ tissue transglutaminase activity in human umbilical vein endothelial cells. Anal Biochem 2009; 394:217-22. [DOI: 10.1016/j.ab.2009.07.040] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2009] [Revised: 07/10/2009] [Accepted: 07/27/2009] [Indexed: 10/20/2022]
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Jang JY, Jeong JG, Jun HR, Lee SC, Kim JS, Kim YS, Kwon MH. A nucleic acid-hydrolyzing antibody penetrates into cells via caveolae-mediated endocytosis, localizes in the cytosol and exhibits cytotoxicity. Cell Mol Life Sci 2009; 66:1985-97. [PMID: 19373434 DOI: 10.1007/s00018-009-9179-2] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Many natural anti-DNA antibodies (Abs) have the ability to translocate across the plasma membrane and localize in the nucleus of mammalian cells, frequently leading to cytotoxicity to cells. Herein, we report detailed intracellular trafficking routes and cytotoxicity in HeLa cells for a single chain variable fragment (scFv) Ab, 3D8, which is an anti-DNA Ab capable of hydrolyzing both DNA and RNA. The intracellular penetration of 3D8 scFv occurred by caveolae/lipid raft endocytosis. The time-course chasing experiments revealed that 3D8 scFv escaped directly from the caveosome into the cytosol and remained in the cytosol without further trafficking into endosomes, lysosomes, endoplasmic reticulum, Golgi, or nucleus. The cytosolically localized 3D8 scFv maintained its nuclease activity to hydrolyze cellular RNAs, mainly mRNAs, eventually triggering apoptotic cell death. Our results demonstrate that 3D8 scFv has a unique intracellular trafficking route of localizing in the cytosol, thereby exhibiting cytotoxicity due to its nuclease activity.
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Affiliation(s)
- J Y Jang
- Department of Microbiology, Ajou University School of Medicine, Suwon, 443-721, Korea
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Kwon MH, Jung JW, Jung SH, Park JY, Kim YM, Ha KS. Quantitative and rapid analysis of transglutaminase activity using protein arrays in mammalian cells. Mol Cells 2009; 27:337-43. [PMID: 19326081 DOI: 10.1007/s10059-009-0043-x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [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: 10/21/2008] [Revised: 11/14/2008] [Accepted: 01/07/2009] [Indexed: 10/21/2022] Open
Abstract
We developed a novel on-chip activity assay using protein arrays for quantitative and rapid analysis of transglutami-nase activity in mammalian cells. Transglutaminases are a family of Ca2+-dependent enzymes involved in cell regulation as well as human diseases such as neurodegenerative disorders, inflammatory diseases and tumor progression. We fabricated the protein arrays by immobilizing N,N'-dimethylcasein (a substrate) on the amine surface of the arrays. We initiated transamidating reaction on the protein arrays and determined the transglutaminase activity by analyzing the fluorescence intensity of biotinylated casein. The on-chip transglutaminase activity assay was proved to be much more sensitive than the [3H]putrescine-incorporation assay. We successfully applied the on-chip assay to a rapid and quantitative analysis of the transgluta-minase activity in all-trans retinoic acid-treated NIH 3T3 and SH-SY5Y cells. In addition, the on-chip transglutaminase activity assay was sufficiently sensitive to determine the transglutaminase activity in eleven mammalian cell lines. Thus, this novel on-chip transglutaminase activity assay was confirmed to be a sensitive and high-throughput approach to investigating the roles of transglutaminase in cellular signaling, and, moreover, it is likely to have a strong potential for monitoring human diseases.
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Affiliation(s)
- Mi-Hye Kwon
- Department of Molecular and Cellular Biochemistry and Vascular System Research Center, Kangwon National University School of Medicine, Chuncheon 200-701, Korea
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Kwon MH, Kang MI, Jeong JH, Won HK, Park HW, Park JH, Kim ST, Kwon SJ, Choi E, Na MJ, Cho HM, Kim YJ, Kim YM, Cho YJ, Son JW. Synchronous Roentgenographically Occult Lung Carcinoma Treated with Argon Plasma Coagulation in a Patient with Resectable Primary Lung Cancer. Tuberc Respir Dis (Seoul) 2008. [DOI: 10.4046/trd.2008.65.2.137] [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: 11/24/2022] Open
Affiliation(s)
- Mi-Hye Kwon
- Department of Internal Medicine, Konyang University College of Medicine, Daejon, Korea
| | - Mi-Il Kang
- Department of Internal Medicine, Konyang University College of Medicine, Daejon, Korea
| | - Ji-Hyun Jeong
- Department of Internal Medicine, Konyang University College of Medicine, Daejon, Korea
| | - Hee-Kwan Won
- Department of Internal Medicine, Konyang University College of Medicine, Daejon, Korea
| | - Hyun-Woong Park
- Department of Internal Medicine, Konyang University College of Medicine, Daejon, Korea
| | - Jung-Ho Park
- Department of Internal Medicine, Konyang University College of Medicine, Daejon, Korea
| | - Sung-Tae Kim
- Department of Internal Medicine, Konyang University College of Medicine, Daejon, Korea
| | - Sun-Jung Kwon
- Department of Internal Medicine, Konyang University College of Medicine, Daejon, Korea
| | - Eugene Choi
- Department of Internal Medicine, Konyang University College of Medicine, Daejon, Korea
| | - Moon-Jun Na
- Department of Internal Medicine, Konyang University College of Medicine, Daejon, Korea
| | - Hyun-Min Cho
- Department of Chest Surgery, Konyang University College of Medicine, Daejon, Korea
| | - Young-Jin Kim
- Department of Chest Surgery, Konyang University College of Medicine, Daejon, Korea
| | - Yoon-Mee Kim
- Department of Pathology, Konyang University College of Medicine, Daejon, Korea
| | - Young-Jun Cho
- Department of Diagnostic Radiology, Konyang University College of Medicine, Daejon, Korea
| | - Ji-Woong Son
- Department of Internal Medicine, Konyang University College of Medicine, Daejon, Korea
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