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Jiang L, Yang A, Li X, Liu K, Tan J. Down-regulation of VCAM-1 in bone mesenchymal stem cells reduces inflammatory responses and apoptosis to improve cardiac function in rat with myocardial infarction. Int Immunopharmacol 2021; 101:108180. [PMID: 34607225 DOI: 10.1016/j.intimp.2021.108180] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 09/15/2021] [Accepted: 09/18/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Bone mesenchymal stem cells (BMSCs) has been well known to exert therapeutic potential for patients with myocardial infarction (MI). VCAM-1 can promote the migration of lymphocytes to the inflammatory zone. In the present study, we tried to explore whether VCAM-1 silenced-BMSCs have better therapeutic effects on MI. METHODS BMSCs were isolated and cultured followed by treatment of a lentivirus silencing VCAM-1 and NF-κB activator (PMA). Besides, MI rat models were also established and injected with treated BMSCs to detect the effect of VCAM-1 silenced-BMSCs in MI, as evidenced by detection of cardiac function, survival of rats within 72 h, infarct size and myocardial cell apoptosis. Moreover, the expression of NF-κB-regulated gene products was also determined. RESULTS The implantation of sh-VCAM-1 BMSCs into MI rats resulted in more reductions in myocardial infarct size as well as myocardial cell apoptosis, improved cardiac function, the number of survived rats within 72 h, and survival time within 72 h compared with the individual treatments of either BMSCs or control. In addition, transplanted BMSCs down-regulated the expression of NF-κB-p65, MMP-9, TNF-α, and Bax, and up-regulated VEGF and Bcl-2 in myocardial tissue, which could be further enhanced by sh-VCAM-1 and rescued by PMA. CONCLUSION Our study demonstrated that silencing VCAM-1 in BMSCs could inhibit inflammation and apoptosis, thus improving cardiac function in MI.
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Affiliation(s)
- Lu Jiang
- Department of Cardiac Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China
| | - Aidi Yang
- Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China; Operation Room, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China
| | - Xi Li
- Department of Cardiac Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China
| | - Ke Liu
- Department of Cardiac Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China
| | - Jin Tan
- Department of Cardiac Surgery, Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China; Chinese Academy of Sciences Sichuan Translational Medicine Research Hospital, Chengdu 610072, China.
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Tang XH, Li H, Zheng XS, Lu MS, An Y, Zhang XL. CRM197 reverses paclitaxel resistance by inhibiting the NAC-1/Gadd45 pathway in paclitaxel-resistant ovarian cancer cells. Cancer Med 2019; 8:6426-6436. [PMID: 31490008 PMCID: PMC6797568 DOI: 10.1002/cam4.2512] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2019] [Revised: 08/02/2019] [Accepted: 08/11/2019] [Indexed: 12/19/2022] Open
Abstract
Heparin‐binding epidermal growth factor‐like growth factor (HB‐EGF) is a new promising target for the treatment of ovarian cancer. Our previous study showed that cross‐reacting material 197 (CRM197), a specific HB‐EGF inhibitor, significantly reverses resistance against paclitaxel in paclitaxel‐resistant ovarian cancer cells. However, the mechanism of the effect of CRM197 on the reversion of paclitaxel resistance was unclear. In this study, in vitro and in vivo data suggested that CRM197 treatment sensitized paclitaxel‐resistant ovarian cancer cells to paclitaxel, at least in part, via nucleus accumbens‐1 (NAC‐1) and its downstream pathway, DNA damage‐inducible 45‐γ interacting protein (Gadd45gip1)/growth arrest and DNA damage‐inducible 45 (Gadd45), in A2780/Taxol and SKOV3/Taxol cells. The results also showed that CRM197 activated the proapoptotic JNK/p38MAPK pathway to enhance caspase‐3 activity and apoptosis by downregulation of the NAC‐1/Gadd45gip1/Gadd45 pathway, leading to reversion of paclitaxel resistance in A2780/Taxol and SKOV3/Taxol cells. This study provides the first mechanism through which CRM197 significantly reverses resistance against paclitaxel by modulating the NAC‐1/Gadd45gip1/Gadd45 pathway in paclitaxel‐resistant ovarian cancer cells, and the mechanism of HB‐EGF inhibition as a novel therapeutic strategy for patients with paclitaxel‐resistant ovarian cancer.
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Affiliation(s)
- Xiao-Han Tang
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Hui Li
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiu-Shuang Zheng
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Mei-Song Lu
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yuan An
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xiao-Lei Zhang
- Department of Gynecology and Obstetrics, The First Affiliated Hospital of Harbin Medical University, Harbin, China
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Wu R, Xue P, Wan Y, Wang S, Gu M. LncRNA-uc.40 silence promotes P19 embryonic cells differentiation to cardiomyocyte via the PBX1 gene. In Vitro Cell Dev Biol Anim 2018; 54:600-609. [PMID: 30112697 DOI: 10.1007/s11626-018-0284-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Accepted: 07/26/2018] [Indexed: 01/06/2023]
Abstract
Uc.40 is a long noncoding RNA that is highly conserved among different species, although its function is unknown. It is highly expressed in abnormal human embryonic heart. We previously reported that overexpression of uc.40 promoted apoptosis and inhibited proliferation of P19 cells, and downregulated PBX1, which was identified as a potential target gene of uc.40. The current study evaluated the effects of uc40-siRNA-44 (siRNA against uc.40) on the differentiation, proliferation, apoptosis, and mitochondrial function in P19 cells, and investigated the relationship between uc.40 and PBX1 in cardiomyocytes. The uc.40 silencing expression was confirmed by quantitative real-time polymerase chain reaction (RT-PCR). Observation of morphological changes in transfected P19 cells during different stages of differentiation revealed that uc40-siRNA-44 increased the number of cardiomyocyes. There was no significant difference in the morphology or time of differentiation between the uc40-siRNA-44 group and the control group. uc40-siRNA-44 significantly promoted proliferation of P19 cells and inhibited serum starvation-induced apoptosis. There was no significant difference in mitochondrial DNA copy number or cellular ATP level between the two groups, and ROS levels were significantly decreased in uc40-siRNA-44-transfected cells. The levels of PBX1 and myocardial markers of differentiation were examined in transfected P19 cells; uc40-siRNA-44 downregulated myocardial markers and upregulated PBX1 expression. These results suggest that uc.40 may play an important role during the differentiation of P19 cells by regulation of PBX1 to promote proliferation and inhibit apoptosis. These studies provide a foundation for further study of uc.40/PBX1 in cardiac development.
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Affiliation(s)
- Rongqiang Wu
- Medical Research Center, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213003, China
| | - Peng Xue
- Department of Pediatrics, Changzhou Children's Hospital, Nantong Medical University, Nantong City, China
| | - Yu Wan
- Medical Research Center, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213003, China
| | - Shizhong Wang
- Medical Research Center, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Changzhou, 213003, China.
| | - Meng Gu
- Department of Pediatrics, Changzhou Children's Hospital, Nantong Medical University, Nantong City, China.
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Relationship between vascular cell adhesion molecule-1 and morbidly adherent placenta. J Gynecol Obstet Hum Reprod 2018; 47:549-553. [PMID: 29857167 DOI: 10.1016/j.jogoh.2018.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 05/22/2018] [Accepted: 05/28/2018] [Indexed: 11/22/2022]
Abstract
INTRODUCTION Morbidly adherent placenta is a clinical condition of which prevalance is steadily increasing. It is described as the invasion of the placenta into the uterine wall through the myometrium and beyond. Vascular cell adhesion molecule-1 is a calcium independent transmembrane glycoprotein. Several studies have shown that vascular cell adhesion molecule-1 increases invasion in tumor cells. In our study we investigated the expression of vascular cell adhesion molecule-1 which has been shown to increase invasion in various tumors in morbidly adherent placenta cases. MATERIAL AND METHOD This is a prospective case-control study. Eighty-four patients who were diagnosed with morbidly adherent placenta and 96 patients without any risk factors as a control group were included in the study. Vascular cell adhesion molecule-1 staining was examined by immune-histochemical staining in placental samples. RESULTS The patients included in the study were similar in terms of demographic characteristics. Of the 84 patients in the morbidly adherent placenta group, 65 (74.7%) showed positive staining. This number was 39 (40.6%) in the control group. Staining in morbidly adherent placenta group was statistically significantly higher (p<0.05). DISCUSSION The etiology of morbidly adherent placenta is still a clinically unknown condition. This study is the first study on this field in the literature. In our study, we showed that vascular cell adhesion molecule-1 expression increased in morbidly adherent placenta group. Although the entire pathogenesis is not explained this can be considered as a step for understanding this subject.
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Kim MY, Park SJ, Shim JW, Song YJ, Yang K, Park SJ, Heo K. Accumulation of low-dose BIX01294 promotes metastatic potential of U251 glioblastoma cells. Oncol Lett 2017; 13:1767-1774. [PMID: 28454322 DOI: 10.3892/ol.2017.5626] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 09/05/2016] [Indexed: 12/13/2022] Open
Abstract
BIX01294 (Bix) is known to be a euchromatic histone-lysine N-methyltransferase 2 inhibitor and treatment with Bix suppresses cancer cell survival and proliferation. In the present study, it was observed that sequential treatment with low-dose Bix notably increases glioblastoma cell migration and metastasis. It was demonstrated that U251 cells sequentially treated with low-dose Bix exhibited induced characteristic changes in critical epithelial-mesenchymal transition (EMT) markers, including E-cadherin, N-cadherin, β-catenin and zinc finger protein SNAI2. Notably, sequential treatment with Bix also increased the expression of cancer stem cell-associated markers, including sex determining region Y-box 2, octamer-binding transcription factor 4 and cluster of differentiation 133. Neurosphere formation was significantly enhanced in cells sequentially treated with Bix, compared with control cells (control: P=0.011; single treatment of Bix, P=0.045). The results of the present study suggest that accumulation of low-dose Bix enhanced the migration and metastatic potential of glioblastoma cells by regulating EMT-associated gene expression, which may be the cause of the altered properties of glioblastoma stem cells.
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Affiliation(s)
- Min Young Kim
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan 619-953, Republic of Korea.,Department of Molecular Biology, College of Natural Sciences, Pusan National University, Busan 609-735, Republic of Korea
| | - Shin-Ji Park
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan 619-953, Republic of Korea
| | - Jae Woong Shim
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan 619-953, Republic of Korea
| | - Yu Jin Song
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan 619-953, Republic of Korea
| | - Kwangmo Yang
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan 619-953, Republic of Korea.,Department of Radiation Oncology, Dongnam Institute of Radiological and Medical Sciences (DIRAMS), Busan 619-953, Republic of Korea.,Department of Radiation Oncology, Korea Institute of Radiological and Medical Sciences, Seoul 13557, Republic of Korea
| | - Seong-Joon Park
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan 619-953, Republic of Korea
| | - Kyu Heo
- Research Center, Dongnam Institute of Radiological and Medical Science (DIRAMS), Busan 619-953, Republic of Korea
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Zhang FY, Hu Y, Que ZY, Wang P, Liu YH, Wang ZH, Xue YX. Shikonin Inhibits the Migration and Invasion of Human Glioblastoma Cells by Targeting Phosphorylated β-Catenin and Phosphorylated PI3K/Akt: A Potential Mechanism for the Anti-Glioma Efficacy of a Traditional Chinese Herbal Medicine. Int J Mol Sci 2015; 16:23823-48. [PMID: 26473829 PMCID: PMC4632727 DOI: 10.3390/ijms161023823] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 08/20/2015] [Accepted: 09/16/2015] [Indexed: 12/26/2022] Open
Abstract
Shikonin is an anthraquinone derivative extracted from the root of lithospermum. Shikonin is traditionally used in the treatment of inflammatory and infectious diseases such as hepatitis. Shikonin also inhibits proliferation and induces apoptosis in various tumors. However, the effect of shikonin on gliomas has not been fully elucidated. In the present study, we aimed to investigate the effects of shikonin on the migration and invasion of human glioblastoma cells as well as the underlying mechanisms. U87 and U251 human glioblastoma cells were treated with shikonin at 2.5, 5, and 7.5 μmol/L and cell viability, migration and invasiveness were assessed with CCK8, scratch wound healing, in vitro Transwell migration, and invasion assays. The expression and activity of matrix metalloproteinase-2 (MMP-2) and matrix metalloproteinase-9 (MMP-9) and the expression of phosphorylated β-catenin (p-β-catenin) and phosphorylated PI3K/Akt were also checked. Results showed that shikonin significantly inhibited the cell proliferation, migration, invasion, and expression of MMP-2 and MMP-9 in U87 and U251 cells. The expression of p-β-catenin showed contrary trends in two cell lines. It was significantly inhibited in U87 cells and promoted in U251 cells. Results in this work indicated that shikonin displayed an inhibitory effect on the migration and invasion of glioma cells by inhibiting the expression and activity of MMP-2 and -9. In addition, shikonin also inhibited the expression of p-PI3K and p-Akt to attenuate cell migration and invasion and MMP-2 and MMP-9 expression in both cell lines, which could be reversed by the PI3K/Akt pathway agonist, insulin-like growth factor-1 (IGF-1).
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Affiliation(s)
- Feng-Ying Zhang
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, China.
- Institute of Pathology and Pathophysiology, China Medical University, Shenyang 110122, China.
| | - Yi Hu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China.
| | - Zhong-You Que
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China.
| | - Ping Wang
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, China.
- Institute of Pathology and Pathophysiology, China Medical University, Shenyang 110122, China.
| | - Yun-Hui Liu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China.
| | - Zhen-Hua Wang
- Department of Physiology, College of Basic Medicine, China Medical University, Shenyang 110122, China.
| | - Yi-Xue Xue
- Department of Neurobiology, College of Basic Medicine, China Medical University, Shenyang 110122, China.
- Institute of Pathology and Pathophysiology, China Medical University, Shenyang 110122, China.
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