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Kim SJ, Kim OH, Hong HE, Ju JH, Lee DS. Etanercept-synthesizing adipose-derived stem cell secretome: A promising therapeutic option for inflammatory bowel disease. World J Gastrointest Surg 2024; 16:882-892. [PMID: 38577094 PMCID: PMC10989350 DOI: 10.4240/wjgs.v16.i3.882] [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] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Revised: 01/03/2024] [Accepted: 02/03/2024] [Indexed: 03/22/2024] Open
Abstract
BACKGROUND Inflammatory bowel disease (IBD) is a chronic inflammatory condition of the gastrointestinal tract, with tumor necrosis factor (TNF)-α playing a key role in its pathogenesis. Etanercept, a decoy receptor for TNF, is used to treat inflammatory conditions. The secretome derived from adipose-derived stem cells (ASCs) has anti-inflammatory effects, making it a promising therapeutic option for IBD. AIM To investigate the anti-inflammatory effects of the secretome obtained from ASCs synthesizing etanercept on colon cells and in a dextran sulfate sodium (DSS)-induced IBD mouse model. METHODS ASCs were transfected with etanercept-encoding mini-circle plasmids to create etanercept-producing cells. The secretory material from these cells was then tested for anti-inflammatory effects both in vitro and in a DSS-induced IBD mouse model. RESULTS This study revealed promising results indicating that the group treated with the secretome derived from etanercept-synthesizing ASCs [Etanercept-Secretome (Et-Sec) group] had significantly lower expression levels of inflammatory mediators, such as interleukin-6, Monocyte Chemoattractant Protein-1, and TNF-α, when compared to the control secretome (Ct-Sec). Moreover, the Et-Sec group exhibited a marked therapeutic effect in terms of preserving the architecture of intestinal tissue compared to the Ct-Sec. CONCLUSION These results suggest that the secretome derived from ASCs that synthesize etanercept has potential as a therapeutic agent for the treatment of IBD, potentially enhancing treatment efficacy by merging the anti-inflammatory qualities of the ASC secretome with etanercept's targeted approach to better address the multifaceted pathophysiology of IBD.
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Affiliation(s)
- Say-June Kim
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Ok-Hee Kim
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Ha-Eun Hong
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Ji Hyeon Ju
- Division of Rheumatology, Department of Internal Medicine, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, South Korea
| | - Do Sang Lee
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
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2
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Kim HJ, Kim OH, Hong HE, Lee SC, Kim SJ. Harnessing adipose‑derived stem cells to release specialized secretome for the treatment of hepatitis B. Int J Mol Med 2021; 47:15. [PMID: 33448314 PMCID: PMC7834954 DOI: 10.3892/ijmm.2021.4848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Accepted: 12/09/2020] [Indexed: 11/09/2022] Open
Abstract
Mesenchymal stem cells (MSCs) have the function of repairing damaged tissue, which is known to be mediated by the secretome, the collection of secretory materials shed from MSCs. Adjusting the culture conditions of MSCs can lead to a significant difference in the composition of the secretome. It was hypothesized that pre‑sensitization of MSCs with specific disease‑causing agents could harness MSCs to release the therapeutic materials specialized for the disease. To validate this hypothesis, the present study aimed to generate a 'disease‑specific secretome' for hepatitis caused by hepatitis B virus using hepatitis BX antigen (HBx) as a disease‑causing material. Secretary materials (HBx‑IS) were collected following the stimulation of adipose‑derived stem cells (ASCs) with 100‑fold diluted culture media of AML12 hepatocytes that had been transfected with pcDNA‑HBx for 24 h. An animal model of hepatitis B was generated by injecting HBx into mice, and the mice were subsequently intravenously administered a control secretome (CS) or HBx‑IS. Compared with the CS injection, the HBx‑IS injection significantly reduced the serum levels of interleukin‑6 and tumor necrosis factor‑α (pro‑inflammatory cytokines). Western blot analysis and immunohistochemistry of the liver specimens revealed that the HBx‑IS injection led to a higher expression of liver regeneration‑related markers, including hepatocyte growth factor and proliferating cell nuclear antigen, a lower expression of pro‑apoptotic markers, such as cleaved caspase 3 and Bim in mouse livers, and a lower expression of pro‑inflammatory markers (F4/80 and CD68) compared to the CS injection. HBx‑IS exhibited higher liver regenerative, anti‑inflammatory and anti‑apoptotic properties, particularly in the mouse model of hepatitis B compared to CS. This suggests that the secretome obtained by stimulating ASCs with disease‑causing agents may have a more prominent therapeutic effect on the specific disease than the naïve secretome.
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Affiliation(s)
- Hee Ju Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591
| | - Ok-Hee Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea
| | - Ha-Eun Hong
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea
| | - Sang Chul Lee
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon 34943, Republic of Korea
| | - Say-June Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea
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Hong TH, Jeena MT, Kim OH, Kim KH, Choi HJ, Lee KH, Hong HE, Ryu JH, Kim SJ. Application of self-assembly peptides targeting the mitochondria as a novel treatment for sorafenib-resistant hepatocellular carcinoma cells. Sci Rep 2021; 11:874. [PMID: 33441650 PMCID: PMC7806888 DOI: 10.1038/s41598-020-79536-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 03/12/2020] [Accepted: 11/30/2020] [Indexed: 12/16/2022] Open
Abstract
Currently, there is no appropriate treatment option for patients with sorafenib-resistant hepatocellular carcinoma (HCC). Meanwhile, pronounced anticancer activities of newly-developed mitochondria-accumulating self-assembly peptides (Mito-FF) have been demonstrated. This study intended to determine the anticancer effects of Mito-FF against sorafenib-resistant Huh7 (Huh7-R) cells. Compared to sorafenib, Mito-FF led to the generation of relatively higher amounts of mitochondrial reactive oxygen species (ROS) as well as the greater reduction in the expression of antioxidant enzymes (P < 0.05). Mito-FF was found to significantly promote cell apoptosis while inhibiting cell proliferation of Huh7-R cells. Mito-FF also reduces the expression of antioxidant enzymes while significantly increasing mitochondrial ROS in Huh7-R cells. The pro-apoptotic effect of Mito-FFs for Huh7-R cells is possibly caused by their up-regulation of mitochondrial ROS, which is caused by the destruction of the mitochondria of HCC cells.
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Affiliation(s)
- Tae Ho Hong
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.,Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - M T Jeena
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Ok-Hee Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.,Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Kee-Hwan Kim
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.,Department of Surgery, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ho Joong Choi
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.,Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Kyung Hee Lee
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.,Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ha-Eun Hong
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.,Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Ja-Hyoung Ryu
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST), Ulsan, Republic of Korea
| | - Say-June Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea. .,Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea.
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Park JH, Kwak BJ, Choi HJ, Kim OH, Hong HE, Lee SC, Kim KH, You YK, Lee TY, Ahn J, Kim SJ. PGC-1α is downregulated in a mouse model of obstructive cholestasis but not in a model of liver fibrosis. FEBS Open Bio 2020; 11:61-74. [PMID: 32860664 PMCID: PMC7780111 DOI: 10.1002/2211-5463.12961] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2020] [Revised: 08/03/2020] [Accepted: 08/21/2020] [Indexed: 11/13/2022] Open
Abstract
Several studies have indicated that cholestatic liver damage involves mitochondria dysfunction. However, the precise mechanism by which hydrophobic bile salts cause mitochondrial dysfunction is not clear. In this study, we intended to determine the pathogenesis of cholestatic liver injury associated with peroxisome proliferator‐activated receptor‐γ co‐activator 1α (PGC‐1α). A mouse model of cholestatic liver disease was generated by surgical ligation of the bile duct (BDL), and a mouse model of fibrosis was developed through serial administration of thioacetamide. After obtaining liver specimens on scheduled days, we compared the expression of the antioxidant enzymes (superoxide dismutase 2 [SOD2], catalase, and glutathione peroxidase‐1[GPx‐1]) and PGC‐1α in livers from mice with fibrosis and cholestasis using western blotting, immunohistochemistry, and immunofluorescence. We found that cholestatic livers exhibit lower expression of antioxidant enzymes, such as SOD2, catalase, and PGC‐1α. In contrast, fibrotic livers exhibit higher expression of antioxidant enzymes and PGC‐1α. In addition, cholestatic livers exhibited significantly lower expression of pro‐apoptotic markers (Bax) as compared to fibrotic livers. It is well known that overexpression of PGC‐1α increases mitochondrial antioxidant enzyme expression, and vice versa. Thus, we concluded that obstructive cholestasis decreases expression of PGC‐1α, which may lead to decreased expression of mitochondrial antioxidant enzymes, thereby rendering mice with cholestatic livers vulnerable to ROS‐induced cell death.
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Affiliation(s)
- Jung Hyun Park
- Department of Surgery, College of Medicine, Eunpyeong St. Mary's Hospital, the Catholic University of Korea, Seoul, Korea
| | - Bong Jun Kwak
- Department of Surgery, College of Medicine, Incheon St. Mary's Hospital, The Catholic University of Korea, Incheon, Korea
| | - Ho Joong Choi
- Department of Surgery, College of Medicine, Seoul St. Mary's Hospital, the Catholic University of Korea, Seoul, Korea
| | - Ok-Hee Kim
- Department of Surgery, College of Medicine, Seoul St. Mary's Hospital, the Catholic University of Korea, Seoul, Korea.,Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul, Korea
| | - Ha-Eun Hong
- Department of Surgery, College of Medicine, Seoul St. Mary's Hospital, the Catholic University of Korea, Seoul, Korea.,Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul, Korea
| | - Sang Chul Lee
- Department of Surgery, College of Medicine, Daejeon St. Mary's Hospital, the Catholic University of Korea, Daejeon, Korea
| | - Kee-Hwan Kim
- Department of Surgery, College of Medicine, Uijeongbu St. Mary's Hospital, the Catholic University of Korea, Gyeonggi-do, Korea
| | - Young Kyoung You
- Department of Surgery, College of Medicine, Seoul St. Mary's Hospital, the Catholic University of Korea, Seoul, Korea
| | - Tae Yun Lee
- Department of Surgery, College of Medicine, Seoul St. Mary's Hospital, the Catholic University of Korea, Seoul, Korea
| | - Joseph Ahn
- Department of Surgery, College of Medicine, Seoul St. Mary's Hospital, the Catholic University of Korea, Seoul, Korea
| | - Say-June Kim
- Department of Surgery, College of Medicine, Seoul St. Mary's Hospital, the Catholic University of Korea, Seoul, Korea.,Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul, Korea
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5
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Park JW, Kim OH, Lee SC, Kim KH, Hong HE, Seo H, Choi HJ, Kim SJ. Serum level of visfatin can reflect the severity of inflammation in patients with acute cholecystitis. Ann Surg Treat Res 2020; 99:26-36. [PMID: 32676479 PMCID: PMC7332317 DOI: 10.4174/astr.2020.99.1.26] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 03/02/2020] [Accepted: 04/07/2020] [Indexed: 12/29/2022] Open
Abstract
Purpose Visfatin is a key cytokine released from the pe ripheral blood mononuclear cells (PBMCs) as well as adipose tissue, and it is involved in immune response as well as inflammation. In this study, we investigated whether the serum visfatin level could be a prognostic factor for predicting the severity of inflammation in patients with acute cholecystitis. Methods We examined the blood samples and gallbladder specimens from patients who underwent laparoscopic cholecystectomy for either acute (n = 18) or chronic cholecystitis (n = 18). We determined the visfatin levels of these samples using various procedures such as real-time polymerase chain reaction, enzyme-linked immunosorbent assay, western blotting, and immunohistochemistry. Results The patients with acute cholecystitis exhibited higher mRNA expression of visfatin in PBMCs, higher serum levels of visfatin, and increased protein expression of visfatin in the gallbladder specimens than in patients with chronic cholecystitis. In the in vitro model of acute cholecystitis, the mRNA expression of visfatin showed the fastest increase among the other pro-inflammatory mediators studied, including interleukin (IL)-10, tumor necrosis factor-α, IL-6, intracellular adhesion molecule-1, and ascular cell adhesion molecule-1. Inhibition of visfatin using siRNA abrogated the inhibitory effects of lipopolysaccharide (LPS) on the expression of ABCG1 in GBECs, suggesting that visfatin is significantly involved in the LPS-driven suppression of ABCG1. Conclusion Taken together, we concluded that visfatin is a pro-inflammatory mediators that is upregulated during acute cholecystitis and is expected to be increased within a short time after inflammation. Therefore, measuring the serum level of visfatin would be helpful in predicting the inflammatory severity in the patients with acute cholecystitis.
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Affiliation(s)
- Jae Woo Park
- Department of Surgery, Daejeon St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea
| | - Ok-Hee Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Catholic Central Laboratory of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sang Chul Lee
- Department of Surgery, Daejeon St. Mary's Hospital, The Catholic University of Korea, Seoul, Korea.,Catholic Central Laboratory of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kee-Hwan Kim
- Catholic Central Laboratory of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Surgery, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ha-Eun Hong
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Catholic Central Laboratory of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Haeyeon Seo
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Catholic Central Laboratory of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ho Joong Choi
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Say-June Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Catholic Central Laboratory of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
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6
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Paik KY, Kim KH, Park JH, Lee JI, Kim OH, Hong HE, Seo H, Choi HJ, Ahn J, Lee TY, Kim SJ. A novel antifibrotic strategy utilizing conditioned media obtained from miR-150-transfected adipose-derived stem cells: validation of an animal model of liver fibrosis. Exp Mol Med 2020; 52:438-449. [PMID: 32152450 PMCID: PMC7156430 DOI: 10.1038/s12276-020-0393-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 06/17/2019] [Revised: 12/13/2019] [Accepted: 01/29/2020] [Indexed: 12/14/2022] Open
Abstract
The limitations of stem cells have led researchers to investigate the secretome, which is the secretory materials in stem cells, since the principal mechanism of action of stem cells is mediated by the secretome. In this study, we determined the antifibrotic potential of the secretome released from miR-150-transfected adipose-derived stromal cells (ASCs). The secretome released from ASCs that were transfected with antifibrotic miR-150 was obtained (referred to as the miR-150 secretome). To validate the antifibrotic effects of the miR-150 secretome, we generated in vitro and in vivo models of liver fibrosis by treating human hepatic stellate cells (LX2 cells) with thioacetamide (TAA) and subcutaneous injection of TAA into mice, respectively. In the in vitro model, more significant reductions in the expression of fibrosis-related markers, such as TGFβ, Col1A1, and α-SMA, were observed by using the miR-150 secretome than the control secretome, specifically in TAA-treated LX2 cells. In the in vivo model, infusion of the miR-150 secretome into mice with liver fibrosis abrogated the increase in serum levels of systemic inflammatory cytokines, such as IL-6 and TNF-α, and induced increased expression of antifibrotic, proliferation, and antioxidant activity markers in the liver. Our in vitro and in vivo experiments indicate that the miR-150 secretome is superior to the naive secretome in terms of ameliorating liver fibrosis, minimizing systemic inflammatory responses, and promoting antioxidant enzyme expression. Therefore, we conclude that miR-150 transfection into ASCs has the potential to induce the release of secretory materials with enhanced antifibrotic, proliferative, and antioxidant properties. A mixture of molecules produced by genetically modified stem cells could help repair the damage associated with liver fibrosis. Fat-derived adipose stem cells (ASCs) secrete proteins and nucleic acids that can facilitate tissue regeneration, but the natural mixture of molecules secreted (the ‘secretome’) is insufficient to reverse advanced fibrosis. Researchers led by Say-June Kim of the Catholic University of Korea, Seoul, South Korea, have boosted the potency of this cell-derived treatment by engineering ASCs to produce an RNA called miR-150. This RNA inhibits biological processes that drive fibrosis. Experiments in cultured cells and a mouse model of fibrosis confirmed that miR-150 consistently improved the ASC secretome’s capacity to control liver fibrosis and minimize systemic inflammatory responses. This approach could thus offer a safe strategy for promoting tissue regeneration and preventing liver failure.
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Affiliation(s)
- Kwang Yeol Paik
- Department of Surgery, Yeouido St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - Kee-Hwan Kim
- Department of Surgery, Uijeongbu St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea.,Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - Jung Hyun Park
- Department of Surgery, Eunpeong St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - Jae Im Lee
- Department of Surgery, Uijeongbu St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - Ok-Hee Kim
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea.,Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - Ha-Eun Hong
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - Haeyeon Seo
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - Ho Joong Choi
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - Joseph Ahn
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - Tae Yun Lee
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea
| | - Say-June Kim
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea. .,Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul, Republic of Korea.
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7
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Lee SC, Hong TH, Kim OH, Cho SJ, Kim KH, Song JS, Hwang KS, Jung JK, Hong HE, Seo H, Choi HJ, Ahn J, Lee TY, Rim E, Jung KY, Kim SJ. A Novel Way of Preventing Postoperative Pancreatic Fistula by Directly Injecting Profibrogenic Materials into the Pancreatic Parenchyma. Int J Mol Sci 2020; 21:ijms21051759. [PMID: 32143463 PMCID: PMC7084673 DOI: 10.3390/ijms21051759] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 02/18/2020] [Accepted: 02/27/2020] [Indexed: 12/13/2022] Open
Abstract
This paper aims to validate if intrapancreatic injection of penicillin G can enhance hardness and suture holding capacity (SHC) of the pancreas through prompting the fibrosis process. Soft pancreatic texture is constantly mentioned as one of the most contributory predictors of postoperative pancreatic fistula (POPF). Soft pancreas has poor SHC and higher incidence of parenchymal tearing, frequently leading to POPF. From a library of 114 antibiotic compounds, we identified that penicillin G substantially enhanced pancreatic hardness and SHC in experimental mice. Specifically, we injected penicillin G directly into the pancreas. On determined dates, we measured the pancreatic hardness and SHC, respectively, and performed molecular and histological examinations for estimation of the degree of fibrosis. The intrapancreatic injection of penicillin G activated human pancreatic stellate cells (HPSCs) to produce various fibrotic materials such as transforming growth factor-β1 (TGF-β1) and metalloproteinases-2. The pancreatic hardness and SHC were increased to the maximum at the second day after injection and then it gradually subsided demonstrating its reversibility. Pretreatment of mice with SB431542, an inhibitor of the TGF-β1 receptor, before injecting penicillin G intrapancreatically, significantly abrogated the increase of both pancreatic hardness and SHC caused by penicillin G. This suggested that penicillin G promotes pancreatic fibrosis through the TGF-β1 signaling pathway. Intrapancreatic injection of penicillin G promotes pancreatic hardness and SHC by enhancing pancreatic fibrosis. We thus think that penicillin G could be utilized to prevent and minimize POPF, after validating its actual effectiveness and safety by further studies.
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Affiliation(s)
- Sang Chul Lee
- Department of Surgery, Daejeon St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Daejeon 34943, Korea;
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (T.H.H.); (O.-H.K.); (K.-H.K.); (H.-E.H.); (H.S.)
| | - Tae Ho Hong
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (T.H.H.); (O.-H.K.); (K.-H.K.); (H.-E.H.); (H.S.)
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.J.C.); (J.A.); (T.Y.L.)
| | - Ok-Hee Kim
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (T.H.H.); (O.-H.K.); (K.-H.K.); (H.-E.H.); (H.S.)
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.J.C.); (J.A.); (T.Y.L.)
| | - Suk Joon Cho
- College of Pharmacy, Chungbuk National University, Cheongju 28644, Korea; (S.J.C.); (J.-K.J.)
| | - Kee-Hwan Kim
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (T.H.H.); (O.-H.K.); (K.-H.K.); (H.-E.H.); (H.S.)
- Department of Surgery, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 11765, Korea
| | - Jin Sook Song
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea; (J.S.S.); (K.-S.H.); (K.-Y.J.)
| | - Kyu-Seok Hwang
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea; (J.S.S.); (K.-S.H.); (K.-Y.J.)
| | - Jae-Kyung Jung
- College of Pharmacy, Chungbuk National University, Cheongju 28644, Korea; (S.J.C.); (J.-K.J.)
| | - Ha-Eun Hong
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (T.H.H.); (O.-H.K.); (K.-H.K.); (H.-E.H.); (H.S.)
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.J.C.); (J.A.); (T.Y.L.)
| | - Haeyeon Seo
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (T.H.H.); (O.-H.K.); (K.-H.K.); (H.-E.H.); (H.S.)
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.J.C.); (J.A.); (T.Y.L.)
| | - Ho Joong Choi
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.J.C.); (J.A.); (T.Y.L.)
| | - Joseph Ahn
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.J.C.); (J.A.); (T.Y.L.)
| | - Tae Yoon Lee
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.J.C.); (J.A.); (T.Y.L.)
| | - Eunyoung Rim
- Deparpment of Medicinal Chemistry and Pharmacology, University of Science & Technology, Daejeon 34113, Korea;
| | - Kwan-Young Jung
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon 34114, Korea; (J.S.S.); (K.-S.H.); (K.-Y.J.)
- Deparpment of Medicinal Chemistry and Pharmacology, University of Science & Technology, Daejeon 34113, Korea;
| | - Say-June Kim
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (T.H.H.); (O.-H.K.); (K.-H.K.); (H.-E.H.); (H.S.)
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea; (H.J.C.); (J.A.); (T.Y.L.)
- Correspondence: ; Fax: +822-535-0070
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Kim OH, Hong HE, Seo H, Kwak BJ, Choi HJ, Kim KH, Ahn J, Lee SC, Kim SJ. Generation of induced secretome from adipose-derived stem cells specialized for disease-specific treatment: An experimental mouse model. World J Stem Cells 2020; 12:70-86. [PMID: 32110276 PMCID: PMC7031761 DOI: 10.4252/wjsc.v12.i1.70] [Citation(s) in RCA: 3] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 08/16/2019] [Accepted: 09/26/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Recently, the exclusive use of mesenchymal stem cell (MSC)-secreted molecules, named as the secretome, have been evaluated for overcoming the limitations of cell-based therapy while maintaining its advantages.
AIM To improve cell-free therapy by adding disease-specificity through stimulation of MSCs using disease-causing materials.
METHODS We collected the secretory materials (named as inducers) released from AML12 hepatocytes that had been pretreated with thioacetamide (TAA) and generated the TAA-induced secretome (TAA-isecretome) after stimulating adipose-derived stem cells with the inducers. The TAA-isecretome was intravenously administered to mice with TAA-induced hepatic failure and those with partial hepatectomy.
RESULTS TAA-isecretome infusion showed higher therapeutic potential in terms of (1) restoring disorganized hepatic tissue to normal tissue; (2) inhibiting proinflammatory cytokines (interleukin-6 and tumor necrosis factor-α); and (3) reducing abnormally elevated liver enzymes (aspartate aminotransferase and alanine aminotransferase) compared to the naïve secretome infusion in mice with TAA-induced hepatic failure. However, the TAA-isecretome showed inferior therapeutic potential for restoring hepatic function in partially hepatectomized mice. Proteomic analysis of TAA-isecretome identified that antioxidant processes were the most predominant enriched biological networks of the proteins exclusively identified in the TAA-isecretome. In addition, peroxiredoxin-1, a potent antioxidant protein, was found to be one of representative components of TAA-isecretome and played a central role in the protection of TAA-induced hepatic injury.
CONCLUSION Appropriate stimulation of adipose-derived stem cells with TAA led to the production of a secretome enriched with proteins, especially peroxiredoxin-1, with higher antioxidant activity. Our results suggest that appropriate stimulation of MSCs with pathogenic agents can lead to the production of a secretome specialized for protecting against the pathogen. This approach is expected to open a new way of developing various specific therapeutics based on the high plasticity and responsiveness of MSCs.
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Affiliation(s)
- Ok-Hee Kim
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
- Department of Surgery, Division of Hepato-biliary Pancreatic Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Ha-Eun Hong
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
- Department of Surgery, Division of Hepato-biliary Pancreatic Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Haeyeon Seo
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
- Department of Surgery, Division of Hepato-biliary Pancreatic Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Bong Jun Kwak
- Department of Surgery, Division of Hepato-biliary Pancreatic Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Ho Joong Choi
- Department of Surgery, Division of Hepato-biliary Pancreatic Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Kee-Hwan Kim
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
- Department of Surgery, Uijeongbu St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul 11765, South Korea
| | - Joseph Ahn
- Department of Surgery, Division of Hepato-biliary Pancreatic Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Sang Chul Lee
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
- Department of Surgery, Daejeon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 34943, South Korea
| | - Say-June Kim
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
- Department of Surgery, Division of Hepato-biliary Pancreatic Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
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Kim KH, Lee JI, Kim OH, Hong HE, Kwak BJ, Choi HJ, Ahn J, Lee TY, Lee SC, Kim SJ. Ameliorating liver fibrosis in an animal model using the secretome released from miR-122-transfected adipose-derived stem cells. World J Stem Cells 2019; 11:990-1004. [PMID: 31768225 PMCID: PMC6851007 DOI: 10.4252/wjsc.v11.i11.990] [Citation(s) in RCA: 9] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 09/02/2019] [Accepted: 09/13/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Recently, the exclusive use of mesenchymal stem cell (MSC)-secreted molecules, called secretome, rather than cells, has been evaluated for overcoming the limitations of cell-based therapy, while maintaining its advantages. However, the use of naïve secretome may not fully satisfy the specificity of each disease. Therefore, it appears to be more advantageous to use the functionally reinforced secretome through a series of processes involving physico-chemical adjustments or genetic manipulation rather than to the use naïve secretome.
AIM To determine the therapeutic potential of the secretome released from miR-122-transfected adipose-derived stromal cells (ASCs).
METHODS We collected secretory materials released from ASCs that had been transfected with antifibrotic miR-122 (MCM) and compared their antifibrotic effects with those of the naïve secretome (CM). MCM and CM were intravenously administered to the mouse model of thioacetamide-induced liver fibrosis, and their therapeutic potentials were compared.
RESULTS MCM infusion provided higher therapeutic potential in terms of: (A) Reducing collagen content in the liver; (B) Inhibiting proinflammatory cytokines; and (C) Reducing abnormally elevated liver enzymes than the infusion of the naïve secretome. The proteomic analysis of MCM also indicated that the contents of antifibrotic proteins were significantly elevated compared to those in the naïve secretome.
CONCLUSION We could, thus, conclude that the secretome released from miR-122-transfected ASCs has higher antifibrotic and anti-inflammatory properties than the naïve secretome. Because miR-122 transfection into ASCs provides a specific way of potentiating the antifibrotic properties of ASC secretome, it could be considered as an enhanced method for reinforcing secretome effectiveness.
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Affiliation(s)
- Kee-Hwan Kim
- Department of Surgery, Uijeongbu St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 11765, South Korea
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Jae Im Lee
- Department of Surgery, Uijeongbu St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 11765, South Korea
| | - Ok-Hee Kim
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Ha-Eun Hong
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Bong Jun Kwak
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Ho Joong Choi
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Joseph Ahn
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Tae Yun Lee
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Sang Chul Lee
- Department of Surgery, Daejeon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 34943, South Korea
| | - Say-June Kim
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
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Lee J, Kim OH, Lee SC, Kim KH, Shin JS, Hong HE, Choi HJ, Kim SJ. Enhanced Therapeutic Potential of the Secretome Released from Adipose-Derived Stem Cells by PGC-1α-Driven Upregulation of Mitochondrial Proliferation. Int J Mol Sci 2019; 20:ijms20225589. [PMID: 31717375 PMCID: PMC6888642 DOI: 10.3390/ijms20225589] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Revised: 11/05/2019] [Accepted: 11/07/2019] [Indexed: 12/12/2022] Open
Abstract
Peroxisome proliferator activated receptor λ coactivator 1α (PGC-1α) is a potent regulator of mitochondrial biogenesis and energy metabolism. In this study, we investigated the therapeutic potential of the secretome released from the adipose-derived stem cells (ASCs) transfected with PGC-1α (PGC-secretome). We first generated PGC-1α-overexpressing ASCs by transfecting ASCs with the plasmids harboring the gene encoding PGC-1α. Secretory materials released from PGC-1α-overexpressing ASCs were collected and their therapeutic potential was determined using in vitro (thioacetamide (TAA)-treated AML12 cells) and in vivo (70% partial hepatectomized mice) models of liver injury. In the TAA-treated AML12 cells, the PGC-secretome significantly increased cell viability, promoted expression of proliferation-related markers, such as PCNA and p-STAT, and significantly reduced the levels of reactive oxygen species (ROS). In the mice, PGC-secretome injections significantly increased liver tissue expression of proliferation-related markers more than normal secretome injections did (p < 0.05). We demonstrated that the PGC-secretome does not only have higher antioxidant and anti-inflammatory properties, but also has the potential of significantly enhancing liver regeneration in both in vivo and in vitro models of liver injury. Thus, reinforcing the mitochondrial antioxidant potential by transfecting ASCs with PGC-1α could be one of the effective strategies to enhance the therapeutic potential of ASCs.
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Affiliation(s)
- Jaeim Lee
- Department of Surgery, Uijeongbu St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 11765, Korea; (J.L.); (K.-H.K.)
| | - Ok-Hee Kim
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, Korea; (O.-H.K.); (J.S.S.); (H.-E.H.); (H.J.C.)
- Catholic Central Laboratory of Surgery, College of Medicine, the Catholic University of Korea, Seoul 06591, Korea
| | - Sang Chul Lee
- Department of Surgery, Daejeon St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 34943, Korea;
| | - Kee-Hwan Kim
- Department of Surgery, Uijeongbu St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 11765, Korea; (J.L.); (K.-H.K.)
- Catholic Central Laboratory of Surgery, College of Medicine, the Catholic University of Korea, Seoul 06591, Korea
| | - Jin Sun Shin
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, Korea; (O.-H.K.); (J.S.S.); (H.-E.H.); (H.J.C.)
- Catholic Central Laboratory of Surgery, College of Medicine, the Catholic University of Korea, Seoul 06591, Korea
| | - Ha-Eun Hong
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, Korea; (O.-H.K.); (J.S.S.); (H.-E.H.); (H.J.C.)
- Catholic Central Laboratory of Surgery, College of Medicine, the Catholic University of Korea, Seoul 06591, Korea
| | - Ho Joong Choi
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, Korea; (O.-H.K.); (J.S.S.); (H.-E.H.); (H.J.C.)
| | - Say-June Kim
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, Korea; (O.-H.K.); (J.S.S.); (H.-E.H.); (H.J.C.)
- Catholic Central Laboratory of Surgery, College of Medicine, the Catholic University of Korea, Seoul 06591, Korea
- Correspondence: ; Fax: +822-535-0070
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You DD, Cho SJ, Kim OH, Song JS, Hwang KS, Lee SC, Kim KH, Choi HJ, Hong HE, Seo H, Hong TH, Park JH, Lee TY, Ahn J, Jung JK, Jung KY, Kim SJ. Superior gallstone dissolubility and safety of tert-amyl ethyl ether over methyl-tertiary butyl ether. World J Gastroenterol 2019; 25:5936-5952. [PMID: 31660031 PMCID: PMC6815801 DOI: 10.3748/wjg.v25.i39.5936] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Revised: 08/19/2019] [Accepted: 09/10/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The use of methyl-tertiary butyl ether (MTBE) to dissolve gallstones has been limited due to concerns over its toxicity and the widespread recognition of the safety of laparoscopic cholecystectomy. The adverse effects of MTBE are largely attributed to its low boiling point, resulting in a tendency to evaporate. Therefore, if there is a material with a higher boiling point and similar or higher dissolubility than MTBE, it is expected to be an attractive alternative to MTBE.
AIM To determine whether tert-amyl ethyl ether (TAEE), an MTBE analogue with a relatively higher boiling point (102 °C), could be used as an alternative to MTBE in terms of gallstone dissolubility and toxicity.
METHODS The in vitro dissolubility of MTBE and TAEE was determined by measuring the dry weights of human gallstones at predetermined time intervals after placing them in glass containers with either of the two solvents. The in vivo dissolubility was determined by comparing the weights of solvent-treated gallstones and control (dimethyl sulfoxide)-treated gallstones, after the direct infusion of each solvent into the gallbladder in both hamster models with cholesterol and pigmented gallstones.
RESULTS The in vitro results demonstrated a 24 h TAEE-dissolubility of 76.7%, 56.5% and 38.75% for cholesterol, mixed, and pigmented gallstones, respectively, which represented a 1.2-, 1.4-, and 1.3-fold increase in dissolubility compared to that of MTBE. In the in vitro experiment, the 24 h-dissolubility of TAEE was 71.7% and 63.0% for cholesterol and pigmented gallstones, respectively, which represented a 1.4- and 1.9-fold increase in dissolubility compared to that of MTBE. In addition, the results of the cell viability assay and western blot analysis indicated that TAEE had a lower toxicity towards gallbladder epithelial cells than MTBE.
CONCLUSION We demonstrated that TAEE has higher gallstone dissolubility properties and safety than those of MTBE. As such, TAEE could present an attractive alternative to MTBE if our findings regarding its efficacy and safety can be consistently reproduced in further subclinical and clinical studies.
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Affiliation(s)
- Dong Do You
- Department of Surgery, St. Vincent's Hospital, College of Medicine, The Catholic University of Korea, Seoul 16247, South Korea
| | - Suk Joon Cho
- College of Pharmacy, Chungbuk National University, Cheongju 28644, South Korea
| | - Ok-Hee Kim
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Jin Sook Song
- Bio and Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon 34114, South Korea
| | - Kyu-Seok Hwang
- Bio and Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon 34114, South Korea
| | - Sang Chul Lee
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul 34943, South Korea
| | - Kee-Hwan Kim
- Department of Surgery, Uijeongbu St. Mary's Hospital, College of Medicine, the Catholic University of Korea, Seoul 11765, South Korea
| | - Ho Joong Choi
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Ha-Eun Hong
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
- Department of Biomedicine and Health Science, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Haeyeon Seo
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
- Department of Biomedicine and Health Science, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Tae Ho Hong
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Jung Hyun Park
- Department of Surgery, Eunpyeong St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 03312, South Korea
| | - Tae Yoon Lee
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Joseph Ahn
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
| | - Jae-Kyung Jung
- College of Pharmacy, Chungbuk National University, Cheongju 28644, South Korea
| | - Kwan-Young Jung
- Bio and Drug Discovery Division, Korea Research Institute of Chemical Technology, Daejeon 34114, South Korea
- Department of Medicinal Chemistry and Pharmacology, University of Science and Technology, Daejeon 34113, South Korea
| | - Say-June Kim
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, the Catholic University of Korea, Seoul 06591, South Korea
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Hong HE, Kim OH, Kwak BJ, Choi HJ, Im KH, Ahn J, Kim SJ. Antioxidant action of hypoxic conditioned media from adipose-derived stem cells in the hepatic injury of expressing higher reactive oxygen species. Ann Surg Treat Res 2019; 97:159-167. [PMID: 31620389 PMCID: PMC6779955 DOI: 10.4174/astr.2019.97.4.159] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2019] [Revised: 06/19/2019] [Accepted: 07/10/2019] [Indexed: 12/30/2022] Open
Abstract
Purpose Almost all liver diseases are known to be accompanied by increased levels of reactive oxygen species (ROS), regardless of the cause of the liver disorder. However, little is known about the role of hypoxic conditioned media (HCM) in the view of pro-oxidative/antioxidative balance. Methods Normoxic conditioned media (NCM) and HCM were obtained after culturing adipose-derived stem cells in 20% O2 or 1% O2 for 24 hours, respectively. Their effects on the expression of various markers reflecting pro-oxidative/antioxidative balance were investigated in both in vitro (thioacetamide-treated AML12 cells) and in vivo (partially hepatectomized mice) models of liver injury, respectively. Results HCM treatment induced the higher expression of antioxidant enzymes, such as superoxide dismutase, glutathione peroxidase, and catalase than did NCM in the in vitro model of liver injury. We also found that HCM increased the expression of nuclear factor erythroid 2-related factor (NRF2). The in vivo models of liver injury consistently validated the phenomenon of upregulated expression of antioxidant enzymes by HCM. Conclusion We thus could conclude that HCM provides protection against ROS-related toxicity by increasing the expression of antioxidant enzymes, in part by releasing NRF2 in the injured liver.
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Affiliation(s)
- Ha-Eun Hong
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ok-Hee Kim
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Bong Jun Kwak
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ho Joong Choi
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Kee-Hwan Im
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Surgery, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Joseph Ahn
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Say-June Kim
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Korea.,Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Choi HJ, Cho SJ, Kim OH, Song JS, Hong HE, Lee SC, Kim KH, Lee SK, You YK, Hong TH, Kim EY, Park JH, Na GH, Do You D, Han JH, Park JW, Kwak BJ, Lee TY, Ahn J, Lee HH, Kang SK, Hwang KS, Jung JK, Jung KY, Kim SJ. Efficacy and safety of a novel topical agent for gallstone dissolution: 2-methoxy-6-methylpyridine. J Transl Med 2019; 17:195. [PMID: 31182117 PMCID: PMC6558798 DOI: 10.1186/s12967-019-1943-y] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Accepted: 05/30/2019] [Indexed: 01/11/2023] Open
Abstract
BACKGROUND Although methyl-tertiary butyl ether (MTBE) is the only clinical topical agent for gallstone dissolution, its use is limited by its side effects mostly arising from a relatively low boiling point (55 °C). In this study, we developed the gallstone-dissolving compound containing an aromatic moiety, named 2-methoxy-6-methylpyridine (MMP) with higher boiling point (156 °C), and compared its effectiveness and toxicities with MTBE. METHODS The dissolubility of MTBE and MMP in vitro was determined by placing human gallstones in glass containers with either solvent and, then, measuring their dry weights. Their dissolubility in vivo was determined by comparing the weights of solvent-treated gallstones and control (dimethyl sulfoxide)-treated gallstones, after directly injecting each solvent into the gallbladder in hamster models with cholesterol and pigmented gallstones. RESULTS In the in vitro dissolution test, MMP demonstrated statistically higher dissolubility than did MTBE for cholesterol and pigmented gallstones (88.2% vs. 65.7%, 50.8% vs. 29.0%, respectively; P < 0.05). In the in vivo experiments, MMP exhibited 59.0% and 54.3% dissolubility for cholesterol and pigmented gallstones, respectively, which were significantly higher than those of MTBE (50.0% and 32.0%, respectively; P < 0.05). The immunohistochemical stains of gallbladder specimens obtained from the MMP-treated hamsters demonstrated that MMP did not significantly increase the expression of cleaved caspase 9 or significantly decrease the expression of proliferation cell nuclear antigen. CONCLUSIONS This study demonstrated that MMP has better potential than does MTBE in dissolving gallstones, especially pigmented gallstones, while resulting in lesser toxicities.
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Affiliation(s)
- Ho Joong Choi
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
| | - Suk Joon Cho
- College of Pharmacy, Chungbuk National University, Cheongju, Republic of Korea
| | - Ok-Hee Kim
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jin Sook Song
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology, 141, Gajeong-ro, Yuseong-gu, Daejeon, 34114 Republic of Korea
| | - Ha-Eun Hong
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sang Chul Lee
- Department of Surgery, Daejeon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Kee-Hwan Kim
- Department of Surgery, Uijeongbu St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Sang Kuon Lee
- Department of Surgery, Daejeon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Young Kyoung You
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
| | - Tae Ho Hong
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
| | - Eun Young Kim
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
| | - Jung Hyun Park
- Department of Surgery, St. Paul’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Gun Hyung Na
- Department of Surgery, Bucheon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Dong Do You
- Department of Surgery, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jae Hyun Han
- Department of Surgery, St. Vincent’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Jae Woo Park
- Department of Surgery, Daejeon St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
| | - Bong Jun Kwak
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
| | - Tae Yun Lee
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
| | - Joseph Ahn
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
| | - Hwan Hee Lee
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology, 141, Gajeong-ro, Yuseong-gu, Daejeon, 34114 Republic of Korea
| | - Seung Kyu Kang
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology, 141, Gajeong-ro, Yuseong-gu, Daejeon, 34114 Republic of Korea
| | - Kyu-Seok Hwang
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology, 141, Gajeong-ro, Yuseong-gu, Daejeon, 34114 Republic of Korea
| | - Jae-Kyung Jung
- College of Pharmacy, Chungbuk National University, Cheongju, Republic of Korea
| | - Kwan-Young Jung
- Bio & Drug Discovery Division, Korea Research Institute of Chemical Technology, 141, Gajeong-ro, Yuseong-gu, Daejeon, 34114 Republic of Korea
- Department of Medicinal Chemistry and Pharmacology, University of Science & Technology, Daejeon, Republic of Korea
| | - Say-June Kim
- Department of Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591 Republic of Korea
- Catholic Central Laboratory of Surgery, Institute of Biomedical Industry, College of Medicine, The Catholic University of Korea, Seoul, Republic of Korea
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Lee SC, Kim KH, Kim OH, Lee SK, Hong HE, Choi BJ, Jeong W, Kim SJ. Everolimus Plus Ku0063794 Regimen Promotes Anticancer Effects against Hepatocellular Carcinoma Cells through the Paradoxical Inhibition of Autophagy. Cancer Res Treat 2017; 50:1023-1038. [PMID: 29121714 PMCID: PMC6056969 DOI: 10.4143/crt.2017.085] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2017] [Accepted: 10/30/2017] [Indexed: 12/12/2022] Open
Abstract
Purpose Everolimus only inhibits mammalian target of rapamycin complex 1 (mTORC1), whereas Ku0063794 inhibits both mTORC1 and mTORC2. Although they have similar anticancer effects, their combination has a synergistic effect against hepatocellular carcinoma (HCC) cells. We aimed to determine the mechanism underlying the synergistic effects of everolimus and Ku0063794 associated with autophagy in HCC cells. Materials and Methods We compared the effects of everolimus and Ku0063794, individually or in combination, on both the in vitro and in vivo models of HCCs. Results HepG2 cells treated with both agents had significantly lower rates of cell proliferation and higher apoptosis than the individual monotherapies (p < 0.05). Autophagic studies consistently indicated that, unlike the monotherapies, the combination therapy significantly reduced autophagy (p < 0.05). Autophagic blockage directly promoted the pro-apoptotic effects of combination therapy, suggesting autophagy as the survival mechanism of HCC cells. Unlike the monotherapies, combination therapy showed the potential to inhibit sirtuin 1 (SIRT1), the positive regulator of autophagy. SIRT1 overexpression abrogated the autophagy-inhibiting and pro-apoptotic effects of combination therapy. In a nude mouse xenograft model, the shrinkage of tumors was more prominent in mice treated with combination therapy than in mice treated with the respective monotherapies (p < 0.05). The immunohistochemical and immunofluorescence stains of the tumor obtained from the xenograft model showed that combination therapy had the potential of reducing autophagy and promoting apoptosis. Conclusion The combination of everolimus and Ku0063794 potentiates anticancer effects on HCCs through a decrease in autophagy, which is prompted by SIRT1 downregulation.
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Affiliation(s)
- Sang Chul Lee
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Korea
| | - Kee-Hwan Kim
- Department of Surgery, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Korea
| | - Ok-Hee Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,The Catholic Central Laboratory of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Sang Kuon Lee
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Korea
| | - Ha-Eun Hong
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,The Catholic Central Laboratory of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Byung Jo Choi
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Korea
| | - Wonjun Jeong
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daejeon, Korea
| | - Say-June Kim
- Department of Surgery, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.,The Catholic Central Laboratory of Surgery, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Lee SC, Kim KH, Kim OH, Lee SK, Hong HE, Won SS, Jeon SJ, Choi BJ, Jeong W, Kim SJ. Determination of optimized oxygen partial pressure to maximize the liver regenerative potential of the secretome obtained from adipose-derived stem cells. Stem Cell Res Ther 2017; 8:181. [PMID: 28774345 PMCID: PMC5543744 DOI: 10.1186/s13287-017-0635-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 07/11/2017] [Accepted: 07/20/2017] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND A hypoxic-preconditioned secretome from stem cells reportedly promotes the functional and regenerative capacity of the liver more effectively than a control secretome. However, the optimum oxygen partial pressure (pO2) in the cell culture system that maximizes the therapeutic potential of the secretome has not yet been determined. METHODS We first determined the cellular alterations in adipose tissue-derived stem cells (ASCs) cultured under different pO2 (21%, 10%, 5%, and 1%). Subsequently, partially hepatectomized mice were injected with the secretome of ASCs cultured under different pO2, and then sera and liver specimens were obtained for analyses. RESULTS Of all AML12 cells cultured under different pO2, the AML12 cells cultured under 1% pO2 showed the highest mRNA expression of proliferation-associated markers (IL-6, HGF, and VEGF). In the cell proliferation assay, the AML12 cells cultured with the secretome of 1% pO2 showed the highest cell proliferation, followed by the cells cultured with the secretome of 21%, 10%, and 5% pO2, in that order. When injected into the partially hepatectomized mice, the 1% pO2 secretome most significantly increased the number of Ki67-positive cells, reduced serum levels of proinflammatory mediators (IL-6 and TNF-α), and reduced serum levels of liver transaminases. In addition, analysis of the liver specimens indicated that injection with the 1% pO2 secretome maximized the expression of the intermediate molecules of the PIP3/Akt and IL-6/STAT3 signaling pathways, all of which are known to promote liver regeneration. CONCLUSIONS The data of this study suggest that the secretome of ASCs cultured under 1% pO2 has the highest liver reparative and regenerative potential of all the secretomes tested here.
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Affiliation(s)
- Sang Chul Lee
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daeheung-dong 520-2, Joong-gu, Daejeon, Republic of Korea
| | - Kee-Hwan Kim
- Department of Surgery, Uijeongbu St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Uijeongbu, Republic of Korea
| | - Ok-Hee Kim
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daeheung-dong 520-2, Joong-gu, Daejeon, Republic of Korea
| | - Sang Kuon Lee
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daeheung-dong 520-2, Joong-gu, Daejeon, Republic of Korea
| | - Ha-Eun Hong
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daeheung-dong 520-2, Joong-gu, Daejeon, Republic of Korea
| | - Seong Su Won
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daeheung-dong 520-2, Joong-gu, Daejeon, Republic of Korea
| | - Sang-Jin Jeon
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daeheung-dong 520-2, Joong-gu, Daejeon, Republic of Korea
| | - Byung Jo Choi
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daeheung-dong 520-2, Joong-gu, Daejeon, Republic of Korea
| | - Wonjun Jeong
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daeheung-dong 520-2, Joong-gu, Daejeon, Republic of Korea
| | - Say-June Kim
- Department of Surgery, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Daeheung-dong 520-2, Joong-gu, Daejeon, Republic of Korea.
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Abstract
The aim of the present study was investigate the impact of seawater immersion on peripheral nerve injury and the underlying mechanisms. A total of 234 specific pathogen-free Sprague-Dawley male rats were randomly divided into a sham group, injury control group and seawater immersion + injury group. The Sciatic Functional Index (SFI) was used to assess nerve function for 6 weeks after injury. Compound muscle action potentials were measured and hematoxylin and eosin (H&E) staining of nerve specimens was carried out at week 6. Levels of reactive oxygen species (ROS) and malondialdehyde (MDA) in nerve tissues were measured by enzyme-linked immunosorbent assay (ELISA), and the expression levels of inducible nitric oxide synthase (iNOS) mRNA and protein were measured by reverse transcription-quantitative polymerase chain reaction and immunohistochemistry, respectively. The SFI value in the seawater immersion + injury group after 6 weeks was lower than that in the injury control group (P<0.05). The compound muscle action potential in the seawater immersion + injury group had a prolonged latency, and the amplitude and nerve conduction velocity were decreased compared with those in the other groups (P<0.05). H&E staining demonstrated that nerve fiber regeneration was worse in the seawater immersion + injury group. The ROS and MDA levels in the seawater immersion + injury group were higher than those in the other groups (P<0.05). The expression levels of iNOS mRNA and protein gradually increased in the injury and seawater immersion + injury groups and peaked at 48 h after surgery. Immersion in seawater further aggravated sciatic nerve injury and led to worse neuronal recovery. The mechanism may be associated with oxidative stress.
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Affiliation(s)
- Haifeng Wang
- Department of Micro-Orthopedics, The People's Liberation Army Clinical College Affiliated with Anhui Medical University (The 105th Hospital of People's Liberation Army), Hefei, Anhui 230031, P.R. China
| | - Jian Fang
- Department of Orthopedics, The People's Liberation Army Clinical College Affiliated with Anhui Medical University (The 105th Hospital of People's Liberation Army), Hefei, Anhui 230031, P.R. China
| | - Feng Hu
- Department of Micro-Orthopedics, The People's Liberation Army Clinical College Affiliated with Anhui Medical University (The 105th Hospital of People's Liberation Army), Hefei, Anhui 230031, P.R. China
| | - Gewei Li
- Department of Orthopedics, The People's Liberation Army Clinical College Affiliated with Anhui Medical University (The 105th Hospital of People's Liberation Army), Hefei, Anhui 230031, P.R. China
| | - H E Hong
- Department of Orthopedics, The People's Liberation Army Clinical College Affiliated with Anhui Medical University (The 105th Hospital of People's Liberation Army), Hefei, Anhui 230031, P.R. China
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Jie ZHANG, Jiang-Hao ZHANG, Chang-Bin ZHANG, Hong HE. Complete Catalytic Oxidation of Ethanol over MnO 2 with Different Crystal Phase Structures. ACTA PHYS-CHIM SIN 2015. [DOI: 10.3866/pku.whxb201412081] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Hua-Yu WANG, Chang-Bin ZHANG, Hong HE, Lian WANG. Preparation o fMagnetic Sulfonated Carbon-Based Solid Acid Catalysts for the Hydrolysis of Cellulose. ACTA PHYS-CHIM SIN 2010. [DOI: 10.3866/pku.whxb20100721] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Chang LIU, Li XUE, Hong HE. Influence of Alkaline Earth Metals on Cobalt-Cerium Composite Oxide Catalysts for N 2O Decomposition. ACTA PHYS-CHIM SIN 2009. [DOI: 10.3866/pku.whxb20090604] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Kao XU, Zhongliang LIU, Hong HE, Shuiyuan CHENG, Chongfang MA. Experimental Study on Emission Control of Premixed Catalytic Combustion of Natural Gas Using Preheated Air. Chin J Chem Eng 2007. [DOI: 10.1016/s1004-9541(07)60035-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Suh HW, Song DK, Wie MB, Jung JS, Hong HE, Choi SR, Kim YH. The reduction of antinociceptive effect of morphine administered intraventricularly is correlated with the decrease of serotonin release from the spinal cord in streptozotocin-induced diabetic rats. Gen Pharmacol 1996; 27:445-50. [PMID: 8723523 DOI: 10.1016/0306-3623(95)02059-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
1. The antinociceptive effect of morphine (25 micrograms) administered into the 3rd ventricle was significantly attenuated in streptozotocin-induced diabetic rats as measured by the tail-flick assay. 2. The release of serotonin (5-HT; 5-hydroxytryptamine) from the spinal cord caused by intraventricular injection of morphine (25 micrograms) was significantly reduced in streptozotocin-induced diabetic rats. 3. No differences of 5-HT contents of the spinal cord (lumbar cord) between streptozotocin-induced diabetic- and vehicle-treated rats were found. 4. It is concluded that the reduction of antinociception produced by intraventricular injection of morphine in streptozotocin-induced diabetic rats might be, at least partly, due to the decrease of 5-HT release from the spinal cord.
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Affiliation(s)
- H W Suh
- Department of Pharmacology, College of Medicine, Hallym University, Chunchon, Kwangwon-Do, S. Korea
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