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Kim HR, Song MY, Chan Kim B. Rapid isolation of bacteria-specific aptamers with a non-SELEX-based method. Anal Biochem 2019; 591:113542. [PMID: 31837967 DOI: 10.1016/j.ab.2019.113542] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/09/2019] [Accepted: 12/10/2019] [Indexed: 02/08/2023]
Abstract
Usually, isolation of bacteria-specific aptamers by SELEX is a time-consuming process due to the required repeated rounds of binding, separation, and amplification of the probes to target bacteria. Here, we show that it is possible to isolate bacteria-specific DNA aptamers omitting the repeated rounds of binding incubation, separation, and amplification that are indispensable for SELEX. The serial removal of unbound DNAs to the bacterial cells from an initial mixture of bacteria and DNA libraries through serial centrifugation, one-time separation, and further one-time amplification of DNA bound to the target bacterial cells applied in this non-SELEX-based method allows successful aptamer isolation.
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Affiliation(s)
- Hye Ri Kim
- Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea; Division of Energy and Environment Technology, KIST School, University of Science and Technology (UST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea
| | - Min Yong Song
- Seoul Institute of Technology, Maebongsan-ro 37, Mapo-gu, Seoul, 03909, Republic of Korea
| | - Byoung Chan Kim
- Center for Environment, Health and Welfare Research, Korea Institute of Science and Technology (KIST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea; Division of Energy and Environment Technology, KIST School, University of Science and Technology (UST), Hwarangno 14-gil 5, Seongbuk-gu, Seoul, 02792, Republic of Korea.
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Lv Z, Ma J, Wang J, Lu J. MicroRNA-761 targets FGFR1 to suppress the malignancy of osteosarcoma by deactivating PI3K/Akt pathway. Onco Targets Ther 2019; 12:8501-8513. [PMID: 31686864 PMCID: PMC6800886 DOI: 10.2147/ott.s208263] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 08/15/2019] [Indexed: 12/15/2022] Open
Abstract
Purpose MicroRNA-761 (miR-761) has been reported to be deregulated in many types of human cancers and play important roles in cancer genesis and progression. However, the biological roles of miR-761 in osteosarcoma (OS) and the underlying mechanisms remain largely unknown. Methods The expression of miR-761 in OS tissues and cell lines was analyzed using RT-qPCR. A series of gain-of-function tests were performed, and status of malignancy was evaluated on basis of proliferation, migration, invasion, and apoptosis using different assays to determine the regulatory roles of miR-761 in OS cells in vivo and in vitro. Notably, the mechanisms underlying the action of miR-761 in the pathogenesis of OS were investigated using bioinformatic analysis, luciferase reporter assay, RT-qPCR and Western blotting. Results The results showed that miR-761 expression was decreased in OS tissues and cell lines and is closely correlated with clinical stage and distant metastasis in OS patients. Patients with OS having low miR-761 expression showed worse prognosis compared to OS patients with high miR-761 expression. Restoring the miR-761 expression level decreased OS cell proliferation, migration, and invasion in vitro; promoted cell apoptosis in vitro; and impaired tumor growth in vivo. In addition, fibroblast growth factor receptor 1 (FGFR1) was found as a direct target gene of miR-761 in OS cells. Furthermore, silencing FGFR1 expression stimulated the tumor-suppressing roles of miR-761 upregulation in OS cells, whereas the activity of miR-761 overexpression in OS cells was abolished by the restoration of FGFR1 expression. Moreover, restoration of miR-761 expression deactivated the PI3K/Akt pathway in vitro and in vivo. Conclusion These results suggest that miR-761 plays anti-cancer roles in OS by directly targeting FGFR1 and deactivating the PI3K/Akt pathway. The newly identified miR-761/FGFR1/PI3K/Akt pathway partially illustrates the mechanism of OS pathogenesis and presents a novel candidate therapeutic target for antitumor therapy.
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Affiliation(s)
- Zhongzhe Lv
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Liaoning 116001, People's Republic of China
| | - Jinming Ma
- School of Graduate Studies, Zunyi Medical University, Guizhou 563000, People's Republic of China
| | - Jianchuan Wang
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Liaoning 116001, People's Republic of China
| | - Jianmin Lu
- Department of Orthopedics, Affiliated Zhongshan Hospital of Dalian University, Liaoning 116001, People's Republic of China
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Lian Z, Han J, Huang L, Wei C, Fan Y, Xu J, Zhou M, Feng H, Liu Q, Chen L, Li Z, Cheng H, Yuan G, Lin X, Song F, Su Y, Wang C, Huang G, Qin A, Song Y, Yao G. Retraction of: A005, a novel inhibitor of phosphatidylinositol 3-kinase/mammalian target of rapamycin, prevents osteosarcoma-induced osteolysis. Carcinogenesis 2019; 40:e1-e13. [PMID: 29635391 DOI: 10.1093/carcin/bgy036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
Osteosarcoma is the most frequent primary bone tumor in children and adolescents. The phosphatidylinositol 3-kinase (PI3K)/mammalian target of rapamycin (mTOR) signaling pathway is an attractive anticancer target because it plays key roles in the regulation of cell growth, division and differentiation. In this study, we demonstrated high expression of PI3K/mTOR signaling pathway-related genes in patients with osteosarcoma. We thus investigated the effects of A005, a newly synthesized dual PI3K/mTOR inhibitor, on osteosarcoma cells and in a mouse xenograft tumor model. The results confirmed that A005 inhibited the proliferation, migration and invasion of human osteosarcoma cells. In addition, A005 also inhibited receptor activator of nuclear factor kappa-B ligand (RANKL)-induced osteoclast differentiation and bone resorption in vitro. Therefore, A005 was further applied to a SaOS-2 osteosarcoma-induced mouse osteolysis model. A005 inhibited tumor growth and prevented osteosarcoma-associated osteolysis via modulation of the PI3K/AKT/mTOR pathway. Overall, our results showed that A005 inhibited osteoclastogenesis and prevented osteosarcoma-induced bone osteolysis by suppressing PI3K/AKT/mTOR signaling. These findings indicated that A005 may be a promising candidate drug for the treatment of human osteosarcoma.
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Affiliation(s)
- Zhen Lian
- Department of Orthopedics, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Jinsong Han
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, Shanghai, China
- Department of Medicinal Chemistry, Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld, Heidelberg, Germany
| | - Lin Huang
- Department of Spine Surgery, Department of Orthopedics, Research Center of Spinal and Pelvic Tumor, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou City, Guangdong Province, China
| | - Chengming Wei
- Department of Orthopedics, Collaborative Innovation Center of Guangxi Biological Medicine, Guangxi Medical University, Guangxi, China
| | - Yongyong Fan
- Orthopedic Department, Taizhou Hospital, Wenzhou Medical University, Linhai, China
| | - Jiake Xu
- Department of Orthopedics, School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | - Mengyu Zhou
- Department of Stomatology, Haicheng Central Hospital, Liaoning, China
| | - Haotian Feng
- Department of Orthopedics, Research Centre for Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Qian Liu
- Department of Orthopedics, Research Centre for Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Lingzi Chen
- Department of Orthopedics, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Zhaoning Li
- Department of Orthopedics, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Haichun Cheng
- Department of General Surgery, The Shenzhen Shajing Affiliated Hospital of Guangzhou Medical University, Shenzhen, Guangdong, China
| | - Guixin Yuan
- Department of Orthopedics, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - Xixi Lin
- Department of Orthopedics, Research Centre for Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Fangming Song
- Department of Orthopedics, Research Centre for Regenerative Medicine, Guangxi Medical University, Guangxi, China
| | - Yiji Su
- Department of Rehabilitation, The First Affiliated Hospital, Guangxi Medical University, Guangxi, China
| | - Chao Wang
- Department of Orthopedics, School of Pathology and Laboratory Medicine, The University of Western Australia, Perth, Western Australia, Australia
| | - Guopeng Huang
- Department of Orthopedics, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
| | - An Qin
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedics, Shanghai Ninth People's Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Yunlong Song
- Department of Medicinal Chemistry, School of Pharmacy, Second Military Medical University, Shanghai, China
| | - Guanfeng Yao
- Department of Orthopedics, The Second Affiliated Hospital, Shantou University Medical College, Shantou, Guangdong, China
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张 帆, 燕 太, 郭 卫. [Rasfonin inhibits proliferation and migration of osteosarcoma 143B cells]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2019; 51:234-238. [PMID: 30996359 PMCID: PMC7441199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Indexed: 08/12/2024]
Abstract
OBJECTIVE To investigate the effects of rasfonin, a fungal secondary metabolite, on the proliferation and migration of osteosarcoma 143B cells. METHODS 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium, inner salt (MTS) assay was performed to examine 143B cell viability following treatment of rasfonin. Using dimethyl sulfoxide (DMSO) group as control, cell viability was detected when 143B cells were treated with rasfonin (3 μmol/L and 6 μmol/L) for 12 or 24 hours. The effect of rasfonin on colony forming ability was detected by clone formation assay. 143B cells treated with DMSO or rasfonin (3 μmol/L) for one week, and the number of clones formed in the two groups was counted. Wound healing and transwell assay were employed to analyze cell invasion and migration upon rasfonin challenge. The DMSO group was used as control while rasfonin (3 μmol/L) was used for 24 hours. The wound healing rate and the number of invasive cells were compared between the two groups. The intracellular autophagosomes were monitored by transmission electron microscopy when 143B cells were treated with DMSO or rasfonin (3 μmol/L) for 4 hours. The expression of p62, microtubule-associated protein 1 light chain 3 fusion protein (LC3) and poly (ADP-ribose) polymerase-1 (PARP-1) in response to rasfonin were detected by immunoblotting assay. RESULTS Rasfonin reduced the viability of 143B cells in a dose-dependent manner (12 h: F=31.36, P<0.01; 24 h: F=67.07, P<0.01). Rasfonin (3 μmol/L) completely inhibited the clonal formation of 143B cells (P<0.01). The wound healing result revealed that rasfonin significantly decreased migratory ability of 143B cells (33.91%±0.83% vs. 65.11%±0.94%, P<0.01), whereas its treatment significantly reduced the number of 143B cells penetrating through Matrigel-containing basement membrane (21.33±1.45 vs. 49.33±2.40, P<0.01). Compared with the control group, rasfonin markedly increased the number of autophagic vacuoles. The immunoblotting results revealed that rasfonin increased LC3-II accumulation and decreased p62 levels. Choloroquine (CQ), an often used autophagic inhibitor, further accumulated rasfonin-induced LC3-II. In addition, rasfonin appeared to cause the cleavage of PARP-1. CONCLUSION Rasfonin induced autophagy and activated caspase-dependent apoptosis in 143B cells concurring with suppressing the proliferation and migration of the cells; these results provide an experimental basis for rasfonin as a potential therapeutic agent for osteosarcoma.
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Affiliation(s)
- 帆 张
- 北京大学人民医院骨肿瘤科, 北京 100044Musculoskeletal Tumor Center, Peking University People’s Hospital, Beijing 100044, China;
- 郑州大学附属肿瘤医院骨软组织科, 郑州 450008Department of Bone and Soft Tissue, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - 太强 燕
- 北京大学人民医院骨肿瘤科, 北京 100044Musculoskeletal Tumor Center, Peking University People’s Hospital, Beijing 100044, China;
| | - 卫 郭
- 北京大学人民医院骨肿瘤科, 北京 100044Musculoskeletal Tumor Center, Peking University People’s Hospital, Beijing 100044, China;
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张 帆, 燕 太, 郭 卫. [Rasfonin inhibits proliferation and migration of osteosarcoma 143B cells]. BEIJING DA XUE XUE BAO. YI XUE BAN = JOURNAL OF PEKING UNIVERSITY. HEALTH SCIENCES 2019; 51:234-238. [PMID: 30996359 PMCID: PMC7441199 DOI: 10.19723/j.issn.1671-167x.2019.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To investigate the effects of rasfonin, a fungal secondary metabolite, on the proliferation and migration of osteosarcoma 143B cells. METHODS 3-(4,5-dimethylthiazol-2-yl)-5-(3-carboxymethoxyphenyl)-2-(4-sulfophenyl)-2H-tetrazolium, inner salt (MTS) assay was performed to examine 143B cell viability following treatment of rasfonin. Using dimethyl sulfoxide (DMSO) group as control, cell viability was detected when 143B cells were treated with rasfonin (3 μmol/L and 6 μmol/L) for 12 or 24 hours. The effect of rasfonin on colony forming ability was detected by clone formation assay. 143B cells treated with DMSO or rasfonin (3 μmol/L) for one week, and the number of clones formed in the two groups was counted. Wound healing and transwell assay were employed to analyze cell invasion and migration upon rasfonin challenge. The DMSO group was used as control while rasfonin (3 μmol/L) was used for 24 hours. The wound healing rate and the number of invasive cells were compared between the two groups. The intracellular autophagosomes were monitored by transmission electron microscopy when 143B cells were treated with DMSO or rasfonin (3 μmol/L) for 4 hours. The expression of p62, microtubule-associated protein 1 light chain 3 fusion protein (LC3) and poly (ADP-ribose) polymerase-1 (PARP-1) in response to rasfonin were detected by immunoblotting assay. RESULTS Rasfonin reduced the viability of 143B cells in a dose-dependent manner (12 h: F=31.36, P<0.01; 24 h: F=67.07, P<0.01). Rasfonin (3 μmol/L) completely inhibited the clonal formation of 143B cells (P<0.01). The wound healing result revealed that rasfonin significantly decreased migratory ability of 143B cells (33.91%±0.83% vs. 65.11%±0.94%, P<0.01), whereas its treatment significantly reduced the number of 143B cells penetrating through Matrigel-containing basement membrane (21.33±1.45 vs. 49.33±2.40, P<0.01). Compared with the control group, rasfonin markedly increased the number of autophagic vacuoles. The immunoblotting results revealed that rasfonin increased LC3-II accumulation and decreased p62 levels. Choloroquine (CQ), an often used autophagic inhibitor, further accumulated rasfonin-induced LC3-II. In addition, rasfonin appeared to cause the cleavage of PARP-1. CONCLUSION Rasfonin induced autophagy and activated caspase-dependent apoptosis in 143B cells concurring with suppressing the proliferation and migration of the cells; these results provide an experimental basis for rasfonin as a potential therapeutic agent for osteosarcoma.
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Affiliation(s)
- 帆 张
- 北京大学人民医院骨肿瘤科, 北京 100044Musculoskeletal Tumor Center, Peking University People’s Hospital, Beijing 100044, China;
- 郑州大学附属肿瘤医院骨软组织科, 郑州 450008Department of Bone and Soft Tissue, Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450008, China
| | - 太强 燕
- 北京大学人民医院骨肿瘤科, 北京 100044Musculoskeletal Tumor Center, Peking University People’s Hospital, Beijing 100044, China;
| | - 卫 郭
- 北京大学人民医院骨肿瘤科, 北京 100044Musculoskeletal Tumor Center, Peking University People’s Hospital, Beijing 100044, China;
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Li XF, Zhao GQ, Li LY. Ginsenoside impedes proliferation and induces apoptosis of human osteosarcoma cells by down-regulating β-catenin. Cancer Biomark 2019; 24:395-404. [PMID: 30909183 DOI: 10.3233/cbm-182046] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Osteosarcoma (OS) is the most commonly occurred primary bone malignancy with high incident rates among children and adolescents. In pharmacologic treatment, the drug ginsenoside has been shown to exert anticancer effects on several malignant diseases. The purpose of this research was to investigate the effect of ginsenoside on the apoptosis and proliferation of human OS MG-63 and Saos-2 cells by regulating the expression of β-catenin. METHODS Human OS MG-63 and Saos-2 cells were assigned into control group, and four groups with treatment by varying concentrations (12.5 μg/mL, 25 μg/mL, 50 μg/mL and 100 μg/mL) of ginsenoside, respectively. Cell growth after treatment was observed through cell slides. The proliferation rate of MG-63 and Saos-2 cells in each group was detected by CCK-8. After cell transfection at 48 h, cell cycle and cell apoptosis were detected by FITC-Annexin V staining and flow cytometry. The protein and mRNA expressions of β-catenin, Cyclin D1, Bcl-2, Bax and cleaved caspase-3 were detected by RT-qPCR and western blot analysis. RESULTS With increased exposure and concentration of ginsenoside, the cell density, total cell numbers and the absorbance of MG-63 and Saos-2 cells gradually decreased. FITC-Annexin V and FITC-Annexin V/PI staining demonstrated that the cell proportion at S phase decreased, whereas the total apoptotic rate of MG-63 and Saos-2 cells was increased. Furthermore, RT-qPCR and western blot analysis highlighted a gradual decrease in protein and mRNA expressions of β-catenin, Bcl-2 and Cyclin D1, while an elevation in those of Bax and cleaved caspase-3. CONCLUSION The results of this study demonstrate that ginsenoside inhibits proliferation and promotes apoptosis of human OS MG-63 and Saos-2 cells by reducing the expressions of β-catenin, Bcl-2 and Cyclin D1 and increasing the expression of Bax and cleaved caspase-3.
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Xu H, Cao T, Zhang X, Shi Y, Zhang Q, Chai S, Yu L, Jin G, Ma J, Wang P, Li Y. Nitidine Chloride Inhibits SIN1 Expression in Osteosarcoma Cells. MOLECULAR THERAPY-ONCOLYTICS 2019; 12:224-234. [PMID: 30847386 PMCID: PMC6389778 DOI: 10.1016/j.omto.2019.01.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Accepted: 01/27/2019] [Indexed: 02/08/2023]
Abstract
Nitidine chloride (NC) has been demonstrated to exert a tumor-suppressive function in various types of human cancers. However, the detailed mechanism of NC-mediated anti-tumor effects remains elusive. It has been reported that SIN1, a component of mTORC2 (mammalian target of rapamycin complex C2), plays an oncogenic role in a variety of human cancers. Therefore, the inhibition of SIN1 could be useful for the treatment of human cancers. In this study, we explored whether NC triggered an anti-cancer function via the inhibition of SIN1 in osteosarcoma (OS) cells. An MTT assay was performed to measure the effect of NC on the cell growth of osteosarcoma cells, and flow cytometry was used to detect the apoptotic rate of the cells after NC treatment. The expression of SIN1 was detected by western blotting. Wound-healing assay and Transwell chamber invasion assay were conducted to analyze the motility of osteosarcoma cells following NC exposure. We found that exposure to NC led to the inhibition of cell growth, migration, and invasion and the induction of apoptosis. Mechanistically, we found that NC inhibited the expression of SIN1 in osteosarcoma cells. Overexpression of SIN1 abrogated the inhibition of cell growth and motility induced by NC in osteosarcoma cells. Our results indicate that NC exhibits its tumor-suppressive activity via the inhibition of SIN1 in osteosarcoma cells, suggesting that NC could be a potential inhibitor of SIN1 in osteosarcoma.
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Affiliation(s)
- Hui Xu
- Department of Laboratory Medicine, School of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Tong Cao
- Department of Clinical Laboratory , The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233004, China
| | - Xiaoqing Zhang
- Research Center of Clinical Laboratory Science, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Ying Shi
- Department of Laboratory Medicine, School of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Qing Zhang
- Department of Orthopedics, The Center Hospital of Bengbu, Bengbu, Anhui 233030, China
| | - Shuo Chai
- Research Center of Clinical Laboratory Science, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Li Yu
- Department of Laboratory Medicine, School of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Guoxi Jin
- Department of Endocrinology, The First Affiliated Hospital of Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Jia Ma
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Peter Wang
- Department of Biochemistry and Molecular Biology, School of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui 233030, China
| | - Yuyun Li
- Department of Laboratory Medicine, School of Laboratory Medicine, Bengbu Medical College, Bengbu, Anhui 233030, China
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Long C, Chen J, Zhou H, Jiang T, Fang X, Hou D, Liu P, Duan H. Diosgenin exerts its tumor suppressive function via inhibition of Cdc20 in osteosarcoma cells. Cell Cycle 2019; 18:346-358. [PMID: 30640578 DOI: 10.1080/15384101.2019.1568748] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Osteosarcoma (OS) is one of the aggressive malignancies for young adults. Cdc20 (cell division cycle 20 homologue) has been reported to exhibit an oncogenic role in OS, suggesting that inhibition of Cdc20 could be a novel strategy for the treatment of OS. Since Cdc20 inhibitors have side effects, it is important to discover the new CDC20 inhibitors with non-toxic nature. In the present study, we determine whether natural agent diosgenin is an inhibitor of Cdc20 in OS cells. We performed MTT, FACS, Wound healing assay, Transwell, Western blotting, transfection assays in our study. We found diosgenin inhibited cell growth and induced apoptosis. Moreover, diosgenin exposure led to inhibition of cell migration and invasion. Notably, diosgenin inhibited the expression of Cdc20 in OS cells. Overexpression of Cdc20 abrogated the inhibition of cell growth and invasion induced by diosgenin. Our data reveal that inhibition of Cdc20 by diosgenin could be helpful for the treatment of patients with OS.
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Affiliation(s)
- Cheng Long
- a Department of Orthopedics, West China Hospital, Sichuan University , Chengdu, Sichuan Province , China
| | - Juan Chen
- b Department of Ultrasound, West China Hospital, Sichuan University , Chengdu, Sichuan Province , China
| | - Hua Zhou
- c Department of Orthopedics, Peking University Third Hospital , Beijing , China
| | - Tao Jiang
- d Department of Orthopedics, Sichuan Modern Hospital , Chengdu, Sichuan Province , China
| | - Xiang Fang
- a Department of Orthopedics, West China Hospital, Sichuan University , Chengdu, Sichuan Province , China
| | - Dong Hou
- e West China Medical College, Sichuan University, Chengdu , Sichuan Province , China
| | - Ping Liu
- e West China Medical College, Sichuan University, Chengdu , Sichuan Province , China
| | - Hong Duan
- a Department of Orthopedics, West China Hospital, Sichuan University , Chengdu, Sichuan Province , China
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Sui C, Liu D, Hu Y, Zhang L. MicroRNA-708-5p affects proliferation and invasion of osteosarcoma cells by targeting URGCP. Exp Ther Med 2019; 17:2235-2241. [PMID: 30783484 PMCID: PMC6364217 DOI: 10.3892/etm.2019.7171] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Accepted: 11/26/2018] [Indexed: 01/04/2023] Open
Abstract
Osteosarcoma is an aggressive cancer of the skeletal system which remains a challenge for the current therapeutic strategies due to unclear etiology and molecular mechanisms of pathogenesis. The current study aimed to determine the expression levels, role and molecular mechanism of microRNA-708-5p (miR-708-5p) in the development of osteosarcoma. The expression level of miR-708-5p was detected using reverse transcription-quantitative polymerase chain reaction. miR-708-5p was overexpressed in SaOS-2 cells using miR-708-5p mimics. Cell viability, apoptosis, migration and invasion were determined using Cell Counting kit-8 assay, flow cytometry, wound healing and transwell assays, respectively. The results indicated that miR-708-5p was significantly downregulated in osteosarcoma tissues and cells, and its overexpression significantly inhibited cell viability, invasion and migration and induced apoptosis of SaOS-2 cells. Furthermore, the present results indicated that miR-708-5p directly targeted the 3'-untranslated region of up-regulator of cell proliferation (URGCP) and negatively regulated its expression in SaOS-2 cells. Taken together, the current study suggested that miR-708-5p may inhibit the growth and invasion of osteosarcoma cells via regulating the URGCP/NF-κB signaling pathway. Further research on these molecules in osteosarcoma may provide novel insights into the target therapy for this disease.
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Affiliation(s)
- Cong Sui
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Debao Liu
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Yong Hu
- Department of Orthopedics, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230032, P.R. China
| | - Linlin Zhang
- Department of Orthopaedics, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui 230001, P.R. China
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Bavelloni A, Focaccia E, Piazzi M, Orsini A, Ramazzotti G, Cocco L, Blalock W, Faenza I. Therapeutic potential of nvp‐bkm120 in human osteosarcomas cells. J Cell Physiol 2018; 234:10907-10917. [DOI: 10.1002/jcp.27911] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 10/24/2018] [Indexed: 12/25/2022]
Affiliation(s)
- Alberto Bavelloni
- Laboratory of Musculoskeletal Cell Biology, IRCCS Istituto Ortopedico Rizzoli Bologna Italy
| | - Enrico Focaccia
- CNR Institute of Molecular Genetics, Unit of Bologna Bologna Italy
| | - Manuela Piazzi
- Laboratory of Musculoskeletal Cell Biology, IRCCS Istituto Ortopedico Rizzoli Bologna Italy
- CNR Institute of Molecular Genetics, Unit of Bologna Bologna Italy
| | - Arianna Orsini
- Department of Biomedical Sciences University of Bologna Bologna Italy
| | - Giulia Ramazzotti
- Department of Biomedical Sciences University of Bologna Bologna Italy
| | - Lucio Cocco
- Department of Biomedical Sciences University of Bologna Bologna Italy
| | - William Blalock
- Laboratory of Musculoskeletal Cell Biology, IRCCS Istituto Ortopedico Rizzoli Bologna Italy
- CNR Institute of Molecular Genetics, Unit of Bologna Bologna Italy
| | - Irene Faenza
- Department of Biomedical Sciences University of Bologna Bologna Italy
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Keremu A, Aimaiti A, Liang Z, Zou X. Role of the HDAC6/STAT3 pathway in regulating PD-L1 expression in osteosarcoma cell lines. Cancer Chemother Pharmacol 2018; 83:255-264. [PMID: 30430228 DOI: 10.1007/s00280-018-3721-6] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Accepted: 05/24/2018] [Indexed: 12/20/2022]
Abstract
Histone deacetylases (HDACs), initially described as histone modifiers, have more recently been verified to target various other proteins unrelated to the chromatin environment. On this basis, findings of the current study demonstrates that the pharmacological or genetic abrogation of HDAC6 in osteosarcoma cell lines down-regulates the expression of program death receptor ligand-1 (PD-L1), an important co-stimulatory molecule expressed in cancer cells, which activates the inhibitory regulatory pathway PD-1 in T cells. As shown by our results, the mechanism by which HDAC6 regulated PD-L1 expression was mediated by the transcription factor STAT3. In addition, we observed that selective HDAC6 inhibitors could inhibit tumor progression in vivo. Crucially, these results provide an essential pre-clinical rationale and justification for the necessity of further research on HDAC6 inhibitors as potential immuno-modulatory agents in osteosarcoma.
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Affiliation(s)
- Ajimu Keremu
- Orthopedic Center, First People's Hospital of Kashgar, 120 Yingbin Road, Kashgar, 844000, Xinjiang, People's Republic of China
| | - Abudusaimi Aimaiti
- Orthopedic Research Institute, First Affiliated Hospital of Xinjiang Medical University, Urumqi, 830054, Xinjiang, People's Republic of China
| | - Zhilin Liang
- Orthopedic Center, First People's Hospital of Kashgar, 120 Yingbin Road, Kashgar, 844000, Xinjiang, People's Republic of China
| | - Xiaoguang Zou
- Orthopedic Center, First People's Hospital of Kashgar, 120 Yingbin Road, Kashgar, 844000, Xinjiang, People's Republic of China.
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Bi D, Zhao L, Yu R, Li H, Guo Y, Wang X, Han M. Surface modification of doxorubicin-loaded nanoparticles based on polydopamine with pH-sensitive property for tumor targeting therapy. Drug Deliv 2018; 25:564-575. [PMID: 29457518 PMCID: PMC6058689 DOI: 10.1080/10717544.2018.1440447] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
One major challenge of current surface modification of nanoparticles is the demand for chemical reactive polymeric layers, such modification is always complicated, inefficient, and may lead the polymer lose the ability to encapsulate drug. To overcome this limitation, we adopted a pH-sensitive platform using polydopamine (PDA) as a way of functionalizing nanoparticles (NPs) surfaces. All this method needed to be just a brief incubation in weak alkaline solution of dopamine, which was simple and applicable to a variety of polymer carriers regardless of their chemical reactivity. We successfully conjugated the doxorubicin (DOX)-PDA-poly (lactic-co-glycolic acid) (PLGA) NPs with two typical surface modifiers: folate (FA) and a peptide (Arg-Gly-Asp, RGD). The DOX-PDA-FA-NPs and DOX-PDA-RGD-NPs (targeting nanoparticles) were characterized by particle size, zeta potential, and surface morphology. They were quite stable in various physiological solutions and exhibited pH-sensitive property in drug release. Compared to DOX-NPs, the targeting nanoparticles possessed an excellent targeting ability against HeLa cells. In addition, the in vivo study demonstrated that targeting nanoparticles achieved a tumor inhibition rate over 70%, meanwhile prominently decreased the side effects of DOX and improve drug distribution in tumors. Our studies indicated that the DOX-PLGA-NPs modified with PDA and various functional ligands are promising nanocarriers for targeting tumor therapy.
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Affiliation(s)
- Dongdong Bi
- a Institute of Medicinal Plant Development , Chinese Academy of Medical Sciences, Peking Union Medical College , Beijing , PR China
| | - Lei Zhao
- b Life Science and Environmental Science Center , Harbin University of Commerce , Harbin , PR China
| | - Runqi Yu
- c School of Pharmacy , Heilongjiang University of Chinese Medicine , Harbin , PR China
| | - Haowen Li
- a Institute of Medicinal Plant Development , Chinese Academy of Medical Sciences, Peking Union Medical College , Beijing , PR China
| | - Yifei Guo
- a Institute of Medicinal Plant Development , Chinese Academy of Medical Sciences, Peking Union Medical College , Beijing , PR China
| | - Xiangtao Wang
- a Institute of Medicinal Plant Development , Chinese Academy of Medical Sciences, Peking Union Medical College , Beijing , PR China
| | - Meihua Han
- a Institute of Medicinal Plant Development , Chinese Academy of Medical Sciences, Peking Union Medical College , Beijing , PR China
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Liu S, Yue J, Du W, Han J, Zhang W. LAMP3 plays an oncogenic role in osteosarcoma cells partially by inhibiting TP53. Cell Mol Biol Lett 2018; 23:33. [PMID: 30008754 PMCID: PMC6042264 DOI: 10.1186/s11658-018-0099-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Accepted: 06/28/2018] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Osteosarcoma (OS) is a common malignant tumor that predominantly occurs in adolescents. Its most common metastasis is to the lungs. As shown in our earlier study, lysosome-associated membrane glycoprotein 3 (LAMP3) is highly upregulated in metastatic OS. However, its role in the regulation of OS cell viability and apoptosis remains unknown. METHODS We knocked down and overexpressed LAMP3 in OS cells and assessed the cell viability and apoptosis. Then, we investigated the expression of apoptosis-associated genes to identify the downstream gene(s) of LAMP3. RESULTS Knockdown of LAMP3 significantly inhibited OS cell viability and promoted apoptosis. TP53, which is involved in the apoptosis pathway, was found to be highly upregulated after knockdown of LAMP3. Overexpression of LAMP3 significantly increased cell viability and abrogated apoptosis. Importantly, subsequent knockdown of TP53 partially suppressed the increased OS cell apoptosis induced by the inhibition of LAMP3, suggesting that TP53 is a key functional downstream gene of LAMP3. CONCLUSIONS Our findings suggest that LAMP3 promotes OS cell viability and survival by regulating TP53 expression.
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Affiliation(s)
- Shaoxian Liu
- Department of Bone Traumatology, Yantaishan Hospital, Yantai, 264000 Shandong Province People’s Republic of China
| | - Junyi Yue
- Department of Bone Traumatology, Yantaishan Hospital, Yantai, 264000 Shandong Province People’s Republic of China
| | - Wei Du
- Department of Spinal Research, Yantaishan Hospital, Yantai, 264000 Shandong Province People’s Republic of China
| | - Jian Han
- Department of Bone Tumor, Yantaishan Hospital, Yantai, 264000, Shandong Province People’s Republic of China
| | - Weidong Zhang
- Department of Bone Traumatology, Yantai Hospital of Traditional Chinese Medicine, Yantai, 264000 Shandong Province People’s Republic of China
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Du L, Han XG, Tu B, Wang MQ, Qiao H, Zhang SH, Fan QM, Tang TT. CXCR1/Akt signaling activation induced by mesenchymal stem cell-derived IL-8 promotes osteosarcoma cell anoikis resistance and pulmonary metastasis. Cell Death Dis 2018; 9:714. [PMID: 29915309 PMCID: PMC6006172 DOI: 10.1038/s41419-018-0745-0] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2018] [Revised: 04/23/2018] [Accepted: 05/29/2018] [Indexed: 12/17/2022]
Abstract
The loss of appropriate cell adhesion normally induces apoptosis via a process termed anoikis. The aim of this study was to investigate the effects of mesenchymal stem cells (MSCs) in the cancer microenvironment on the anoikis resistance and pulmonary metastasis of osteosarcoma (OS) cells, and to evaluate the critical role of the interleukin (IL)-8/C-X-C chemokine receptor (CXCR) 1/Akt-signaling pathway in these processes. Metastatic OS subtype cells, which did or did not interact with MSC-conditioned medium (MSC-CM) in vitro, were isolated from the pulmonary site and named Saos2-lung-M. Both MSC-CM and IL-8 treatment increased the anoikis resistance of Saos2 cells in vitro. Moreover, exogenous MSC-CM promoted the survival and metastasis of Saos2 cells in nude mice. Saos2-lung-M cells were more malignant and resistant to anoikis than parental cells. MSCs secreted IL-8, thereby protecting OS cells from anoikis. Blocking the IL-8/CXCR1/Akt pathway via CXCR1 knockdown inhibited the pulmonary metastasis of Saos2-lung-MSCs and prolonged the survival of tumor-bearing mice. In conclusion, MSCs enhanced OS cell resistance to anoikis and pulmonary metastasis via regulation of the IL-8/CXCR1/Akt pathway. These findings suggest that MSCs can “select for” OS cells with high metastatic potential in vivo, and highlight CXCR1 as a key target in the regulation of pulmonary metastasis of OS cells.
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Affiliation(s)
- Lin Du
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Department of Orthopaedic Surgery, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiu-Guo Han
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bing Tu
- Department of Orthopaedic Surgery, Shanghai Sixth People's Hospital Affiliated to Shanghai Jiao Tong University, Shanghai, China
| | - Min-Qi Wang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Han Qiao
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Shu-Hong Zhang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qi-Ming Fan
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Ting-Ting Tang
- Shanghai Key Laboratory of Orthopedic Implants, Department of Orthopedic Surgery, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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65
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Nielsen CF, van Putten SM, Lund IK, Melander MC, Nørregaard KS, Jürgensen HJ, Reckzeh K, Christensen KR, Ingvarsen SZ, Gårdsvoll H, Jensen KE, Hamerlik P, Engelholm LH, Behrendt N. The collagen receptor uPARAP/Endo180 as a novel target for antibody-drug conjugate mediated treatment of mesenchymal and leukemic cancers. Oncotarget 2018; 8:44605-44624. [PMID: 28574834 PMCID: PMC5546505 DOI: 10.18632/oncotarget.17883] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Accepted: 04/24/2017] [Indexed: 11/29/2022] Open
Abstract
A key task in developing the field of personalized cancer therapy is the identification of novel molecular targets that enable treatment of cancers not susceptible to other means of specific therapy. The collagen receptor uPARAP/Endo180 is overexpressed by malignant cells in several non-epithelial cancers, notably including sarcomas, glioblastomas and subsets of acute myeloid leukemia. In contrast, in healthy adult individuals, expression is restricted to minor subsets of mesenchymal cells. Functionally, uPARAP/Endo180 is a rapidly recycling endocytic receptor that delivers its cargo directly into the endosomal-lysosomal system, thus opening a potential route of entry into receptor-positive cells. This combination of specific expression and endocytic function appears well suited for targeting of uPARAP/Endo180-positive cancers by antibody-drug conjugate (ADC) mediated drug delivery. Therefore, we utilized a specific monoclonal antibody against uPARAP/Endo180, raised through immunization of a uPARAP/Endo180 knock-out mouse, which reacts with both the human and the murine receptor, to construct a uPARAP-directed ADC. This antibody was coupled to the highly toxic dolastatin derivative, monomethyl auristatin E, via a cathepsin-labile valine-citrulline linker. With this ADC, we show strong and receptor-dependent cytotoxicity in vitro in uPARAP/Endo180-positive cancer cell lines of sarcoma, glioblastoma and leukemic origin. Furthermore, we demonstrate the potency of the ADC in vivo in a xenograft mouse model with human uPARAP/Endo180-positive leukemic cells, obtaining a complete cure of all tested mice following intravenous ADC treatment with no sign of adverse effects. Our study identifies uPARAP/Endo180 as a promising target for novel therapy against several highly malignant cancer types.
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Affiliation(s)
- Christoffer Fagernæs Nielsen
- The Finsen Laboratory, Rigshospitalet, Biotech Research and Innovation Center (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Sander Maarten van Putten
- The Finsen Laboratory, Rigshospitalet, Biotech Research and Innovation Center (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Ida Katrine Lund
- The Finsen Laboratory, Rigshospitalet, Biotech Research and Innovation Center (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Maria Carlsén Melander
- The Finsen Laboratory, Rigshospitalet, Biotech Research and Innovation Center (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Kirstine Sandal Nørregaard
- The Finsen Laboratory, Rigshospitalet, Biotech Research and Innovation Center (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Henrik Jessen Jürgensen
- The Finsen Laboratory, Rigshospitalet, Biotech Research and Innovation Center (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark.,Proteases and Tissue Remodeling Section, Oral and Pharyngeal Cancer Branch, NIDCR, National Institutes of Health, Bethesda, Maryland 20892, USA
| | - Kristian Reckzeh
- The Finsen Laboratory, Rigshospitalet, Biotech Research and Innovation Center (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Kristine Rothaus Christensen
- Experimental Animal Models Section, Department of Veterinary Disease Biology, University of Copenhagen, DK-1871 Frederiksberg C, Denmark
| | - Signe Ziir Ingvarsen
- The Finsen Laboratory, Rigshospitalet, Biotech Research and Innovation Center (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Henrik Gårdsvoll
- The Finsen Laboratory, Rigshospitalet, Biotech Research and Innovation Center (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | | | - Petra Hamerlik
- Danish Cancer Society Research Center, DK-2100 Copenhagen Ø, Denmark
| | - Lars Henning Engelholm
- The Finsen Laboratory, Rigshospitalet, Biotech Research and Innovation Center (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
| | - Niels Behrendt
- The Finsen Laboratory, Rigshospitalet, Biotech Research and Innovation Center (BRIC), Faculty of Health and Medical Sciences, University of Copenhagen, DK-2200 Copenhagen, Denmark
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Xu W, Chen C, Xu R, Li Y, Hu R, Li Z, Zhu X. Knockdown of HuR represses osteosarcoma cells migration, invasion and stemness through inhibition of YAP activation and increases susceptibility to chemotherapeutic agents. Biomed Pharmacother 2018; 102:587-593. [PMID: 29597092 DOI: 10.1016/j.biopha.2018.03.098] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Revised: 03/15/2018] [Accepted: 03/15/2018] [Indexed: 12/14/2022] Open
Abstract
This study aims to explore the roles and related mechanisms of HuR in osteosarcoma (OS) cells migration, invasion, stemness and chemotherapeutical sensitivity. Here, we found that HuR exhibited higher level in OS tissues compared with the adjacent normal tissues. Knockdown of HuR with lentivirus infection suppressed OS cells migration and invasion, and thus the epithelial-mesenchymal transition (EMT) process. Additionally, HuR knockdown inhibited OS cells stemness. Mechanistically, YAP was identified as a direct target of HuR in OS cells, and HuR knockdown decreased its expression. Moreover, YAP transcriptional activity was attenuated by HuR knockdown, and RNA immunization co-precipitation (RIP) assay showed that HuR directly bound with YAP. Importantly, YAP overexpression rescued the inhibition of HuR knockdown on OS cells migration, invasion and stemness. Furthermore, HuR knockdown enhanced adriamycin sensitivity in OS cells, this effect was attenuated by YAP overexpression too. Importantly, HuR and YAP expression was positively correlated in OS tissues. Therefore, HuR acts as a tumor promoter by enhancing YAP expression in OS cells.
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Affiliation(s)
- Wei Xu
- TongRen Hospital, School of Medicine, Shanghai JiaoTong University, 1111 Xianxia Road, Shanghai, 200331, People's Republic of China
| | - Chao Chen
- TongRen Hospital, School of Medicine, Shanghai JiaoTong University, 1111 Xianxia Road, Shanghai, 200331, People's Republic of China
| | - Ruijun Xu
- TongRen Hospital, School of Medicine, Shanghai JiaoTong University, 1111 Xianxia Road, Shanghai, 200331, People's Republic of China
| | - Yifan Li
- TongRen Hospital, School of Medicine, Shanghai JiaoTong University, 1111 Xianxia Road, Shanghai, 200331, People's Republic of China
| | - Ruixi Hu
- TongRen Hospital, School of Medicine, Shanghai JiaoTong University, 1111 Xianxia Road, Shanghai, 200331, People's Republic of China
| | - Zhikun Li
- TongRen Hospital, School of Medicine, Shanghai JiaoTong University, 1111 Xianxia Road, Shanghai, 200331, People's Republic of China.
| | - Xiaodong Zhu
- TongRen Hospital, School of Medicine, Shanghai JiaoTong University, 1111 Xianxia Road, Shanghai, 200331, People's Republic of China.
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Ginsenoside Rg3 Suppresses Proliferation and Induces Apoptosis in Human Osteosarcoma. BIOMED RESEARCH INTERNATIONAL 2018; 2018:4306579. [PMID: 29750154 PMCID: PMC5884244 DOI: 10.1155/2018/4306579] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 01/06/2018] [Accepted: 01/15/2018] [Indexed: 02/07/2023]
Abstract
Osteosarcoma is the most common primary malignancy of bone in children and the elderly. Recently, more and more researches have demonstrated that Ginsenoside Rg3 (Rg3) is involved in chemotherapy resistance in many cancer, making it a promising Chinese herbal monomer for oncotherapy. In this study, we investigated the efficacy of Rg3 in human osteosarcoma cell lines (MG-63, U-2OS, and SaOS-2). Cell proliferation was measured by CCK8 assay. The migration of cells was examined using the scratch assay method. Quantification of apoptosis was assessed further by flow cytometry. In addition, the expression of apoptosis-related genes (caspase9, caspase3, Bcl2, and Bax) were investigated using RT-PCR. We further investigated the protein level expression of Bcl 2, cleaved-caspase3, and PI3K/AKT/mTOR signaling pathway factors by Western blot assay. Our results revealed that Rg3 inhibited the proliferation and migration of human osteosarcoma cells and induced apoptosis in a concentration- and time-dependent manner. Western blot results showed that Rg3 reduced the protein expression of Bcl2 and PI3K/AKT/mTORbut increased the levels of cleaved-caspase3. Therefore, we hypothesized Rg3 inhibits the proliferation of osteosarcoma cell line and induces their apoptosis by affecting apoptosis-related genes (Bcl2, caspase3) as well as the PI3K/AKT/mTOR signaling pathway. To conclude, Rg3 is a new therapeutic agent against osteosarcoma.
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Zhou Y, Shen JK, Yu Z, Hornicek FJ, Kan Q, Duan Z. Expression and therapeutic implications of cyclin-dependent kinase 4 (CDK4) in osteosarcoma. Biochim Biophys Acta Mol Basis Dis 2018; 1864:1573-1582. [PMID: 29452249 DOI: 10.1016/j.bbadis.2018.02.004] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Revised: 01/24/2018] [Accepted: 02/09/2018] [Indexed: 11/24/2022]
Abstract
Overexpression and/or hyperactivation of cyclin-dependent kinase 4 (CDK4) has been found in many types of human cancers, and a CDK4 specific inhibitor, palbociclib, has been recently approved by the FDA for the treatment of breast cancer. However, the expression and the therapeutic potential of CDK4 in osteosarcoma remain unclear. In the present study, CDK4 was found to be highly expressed in human osteosarcoma tissues and cell lines as compared with normal human osteoblasts. Elevated CDK4 expression correlated with metastasis potential and poor prognosis in osteosarcoma patients as determined by immunohistochemical analysis in a human osteosarcoma tissue microarray (TMA). CDK4 inhibition by either palbociclib or specific small interference RNA (siRNA) exhibited dose-dependent inhibition of osteosarcoma cell proliferation and growth, accompanied by suppression of the CDK4/6-cyclinD-Rb signaling pathway. Flow cytometry analysis showed that CDK4 knockdown arrested osteosarcoma cells in the G1 phase of the cell cycle and induced cell apoptosis. Furthermore, inhibition of CDK4 significantly decreased osteosarcoma cell migration in vitro determined by the wound healing assay. These data highlight that CDK4 may be a potential promising therapeutic target in the treatment of human osteosarcoma.
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Affiliation(s)
- Yubing Zhou
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China; Sarcoma Biology Laboratory, UCLA Orthopaedic Surgery, Los Angeles, CA 90095, USA
| | - Jacson K Shen
- Sarcoma Biology Laboratory, UCLA Orthopaedic Surgery, Los Angeles, CA 90095, USA
| | - Zujiang Yu
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China
| | - Francis J Hornicek
- Sarcoma Biology Laboratory, UCLA Orthopaedic Surgery, Los Angeles, CA 90095, USA
| | - Quancheng Kan
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China.
| | - Zhenfeng Duan
- Department of Pharmacy, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, People's Republic of China; Sarcoma Biology Laboratory, UCLA Orthopaedic Surgery, Los Angeles, CA 90095, USA.
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69
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Hsu YN, Shyu HW, Hu TW, Yeh JP, Lin YW, Lee LY, Yeh YT, Dai HY, Perng DS, Su SH, Huang YH, Su SJ. Anti-proliferative activity of biochanin A in human osteosarcoma cells via mitochondrial-involved apoptosis. Food Chem Toxicol 2018; 112:194-204. [PMID: 29305928 DOI: 10.1016/j.fct.2017.12.062] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2017] [Revised: 12/17/2017] [Accepted: 12/29/2017] [Indexed: 01/13/2023]
Abstract
Biochanin A is a major isoflavone in red clover and a potent chemopreventive agent against cancer. However, the effects of biochanin A on human osteosarcoma cells have never been clarified. This study investigated the anti-proliferative potential of biochanin A in osteosarcoma cells. The results indicate that biochanin A inhibited cell growth and colony formation in a dose-dependent manner with a minimal toxicity to normal cells. The combination of doxorubicin and biochanin A could synergistically inhibit osteosarcoma cell growth. The cytotoxic effect of biochanin A via the induction of apoptosis as evidenced by formation of apoptotic bodies, externalization of phosphatidylserine, accumulation of sub-G1 phase cells, caspase 3 activation, and cleavage of PARP. Apoptosis was associated with loss of the mitochondrial membrane potential, release of cytochrome c, caspase 9 activation, increased Bax expression, and reduced Bcl-2 and Bcl-XL expression. Pre-treatment with a caspase-9 specific inhibitor (Z-LEHD-FMK) partially attenuated cell death, suggesting involvement of the intrinsic mitochondrial apoptotic cascade. However, pre-treatment with the JNK inhibitor SP600125, the MEK inhibitor PD-98059, and the p38 MAPK inhibitor SB203580 or the antioxidants vitamin E, N-acetylcysteine, and glutathione failed to prevent biochanin A-induced cell death. Our results suggest that biochanin A inhibits cell growth and induces apoptosis in osteosarcoma cells by triggering activation of the intrinsic mitochondrial pathway and caspase-9 and -3 and increasing the Bax: Bcl-2/Bcl-XL ratio.
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Affiliation(s)
| | - Huey-Wen Shyu
- Department of Medical Laboratory Science and Biotechnology, School of Medicine and Health Sciences, Fooyin University, Kaohsiung, Taiwan
| | - Tsui-Wen Hu
- Department of Medical Laboratory Science and Biotechnology, School of Medicine and Health Sciences, Fooyin University, Kaohsiung, Taiwan
| | - Jou-Pei Yeh
- Department of Medical Laboratory Science and Biotechnology, School of Medicine and Health Sciences, Fooyin University, Kaohsiung, Taiwan
| | - Ya-Wen Lin
- Department of Medical Laboratory Science and Biotechnology, School of Medicine and Health Sciences, Fooyin University, Kaohsiung, Taiwan
| | - Ling-Yi Lee
- Department of Medical Laboratory Science and Biotechnology, School of Medicine and Health Sciences, Fooyin University, Kaohsiung, Taiwan
| | - Yao-Tsung Yeh
- Department of Medical Laboratory Science and Biotechnology, School of Medicine and Health Sciences, Fooyin University, Kaohsiung, Taiwan; Department of Education and Research, Fooyin University Hospital, Pingtung, Taiwan; Aging and Disease Prevention Research Center, Fooyin University, Kaohsiung, Taiwan
| | - Hong-Ying Dai
- Institute of Biomedical Sciences, National Sun Yat-Sen University, Kaohsiung, Taiwan
| | - Daw-Shyong Perng
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, E-Da Hospital/I-Shou University, Kaohsiung, Taiwan
| | - Shu-Hui Su
- Department of Molecular Biology and Human Genetics, College of Life Science, Tzu-Chi University, Hualien, Taiwan
| | - Yu-Hsuan Huang
- Department of Medical Laboratory Science and Biotechnology, School of Medicine and Health Sciences, Fooyin University, Kaohsiung, Taiwan
| | - Shu-Jem Su
- Department of Medical Laboratory Science and Biotechnology, School of Medicine and Health Sciences, Fooyin University, Kaohsiung, Taiwan; Department of Pharmacy, Fooyin University Hospital, Pingtung, Taiwan.
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70
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Yuan Q, Yu H, Chen J, Song X, Sun L. Knockdown of pyruvate kinase type M2 suppresses tumor survival and invasion in osteosarcoma cells both in vitro and in vivo. Exp Cell Res 2018; 362:209-216. [PMID: 29155364 DOI: 10.1016/j.yexcr.2017.11.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 11/10/2017] [Accepted: 11/15/2017] [Indexed: 12/24/2022]
Abstract
Osteosarcoma (OS) is the mostly diagnosed primary bone malignancy. Emerging evidence indicates that the activity of pyruvate kinase M2 (PKM2) isoform is crucial for the survival of tumor cells. In the present study, the effect of PKM2 knockdown on the proliferation and migration of OS cells were assessed both in vitro and in vivo. Small hairpin RNA (shRNA) technology were employed to suppress the expression of PKM2 in MG-63 and Saos-2 cell lines. In vitro, shRNA-mediated knockdown of PKM2 efficiently inhibited cell proliferation, and induced G1 cell cycle arrest and apoptosis in both cell lines, which was associated with decreased expressions of cyclin D1 and Bcl-2 as well as increased expressions of Bax, cleaved-caspase-3, and cleaved-PARP. The invasion and migration potential of OS cell lines were also inhibited by PKM2 knockdown through the regulating effect of PKM2 on MMP-2 and VEGF signaling. In vivo, knockdown of PKM2 decelerated tumor growth rate and induced structure deterioration in tumor tissues. The current study for the first time showed that the activity of PKM2 was indispensable for the development and metastasis of OS, thereby providing the basic information for the future development of PKM2-based anti-OS therapies.
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Affiliation(s)
- Quan Yuan
- Department of Orthopedic Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
| | - Honghao Yu
- Department of Orthopedic Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
| | - Jianhua Chen
- Department of Orthopedic Surgery, Shengjing Hospital of China Medical University, Shenyang 110004, People's Republic of China
| | - Xiaoyu Song
- Institute of Translational Medicine, China Medical University, Shenyang 110122, People's Republic of China
| | - Li Sun
- Department of Nephrology, The First Affiliated Hospital of China Medical University, Shenyang 110001, People's Republic of China.
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71
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Mori Y, Shirai T, Terauchi R, Tsuchida S, Mizoshiri N, Hayashi D, Arai Y, Kishida T, Mazda O, Kubo T. Antitumor effects of pristimerin on human osteosarcoma cells in vitro and in vivo. Onco Targets Ther 2017; 10:5703-5710. [PMID: 29238202 PMCID: PMC5713707 DOI: 10.2147/ott.s150071] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
There are very few treatments for musculoskeletal tumors, compared to other cancers; thus, novel therapeutic drugs are needed. Pristimerin (PM) is a triterpene compound isolated from plant extracts that reportedly has antitumor effects on various cancers, such as of the breast and prostate. The purpose of this study was to evaluate the antitumor effects of PM on human osteosarcoma cells. Treatment of the human osteosarcoma cell lines, MNNG and 143B, with PM led to a dose-dependent decrease in cell viability. The effects of PM on apoptosis were evaluated with the Annexin V/propidium iodide assay and analysis of caspases 3, 8, and 9 activities. Western blot analysis showed that PM caused a decrease in the expression of Akt, mTOR, and NF-κB. The volumes and weights of human osteosarcoma xenografts decreased significantly with PM treatment. The results of this study revealed that PM can inhibit human osteosarcoma growth in vitro and in vivo, and may be a novel therapeutic agent for the disease.
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Affiliation(s)
| | | | | | | | | | | | - Yuji Arai
- Department of Sports and Para-Sports Medicine
| | - Tunao Kishida
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Osam Mazda
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
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Wang J, Lu Y, Ding H, Gu T, Gong C, Sun J, Zhang Z, Zhao Y, Ma C. The miR-875-5p inhibits SATB2 to promote the invasion of lung cancer cells. Gene 2017; 644:13-19. [PMID: 29196257 DOI: 10.1016/j.gene.2017.11.066] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Revised: 11/04/2017] [Accepted: 11/27/2017] [Indexed: 01/03/2023]
Abstract
The pathogenesis of non-small cell lung cancer (NSCLC) is regulated by various miRNAs. In this study, we identified that miR-875-5pis up-regulated in NSCLC patients, and inhibited SATB Homeobox 2(SATB2) to promote proliferation and invasion of NSCLCcells.CCK-8assay revealed thatmiR-875-5p mimics promoted proliferation of NSCLC cells. Transwell assay showed that miR-875-5pmimicspromoted the invasion and migration of NSCLC cells. Luciferase assays confirmed that miR-875-5pdirectly binds to the 3'untranslated region of SATB2, and western blotting showed that miR-875-5psuppresses the expression of SATB2 at the protein level. Moreover, the inhibitors of miR-875-5pinhibit proliferation and invasion of NSCLC cell lines. The miR-875-5pwouldbe a potential therapeutic target for NSCLC treatment in the future.
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Affiliation(s)
- Jun Wang
- Zhangjiagang First People 's Hospital, Zhangjiagang Hospital Affiliated to Suzhou University, Zhangjiagang 215600, China
| | - Yadong Lu
- Zhangjiagang First People 's Hospital, Zhangjiagang Hospital Affiliated to Suzhou University, Zhangjiagang 215600, China
| | - Hao Ding
- Zhangjiagang First People 's Hospital, Zhangjiagang Hospital Affiliated to Suzhou University, Zhangjiagang 215600, China
| | - Tao Gu
- Zhangjiagang First People 's Hospital, Zhangjiagang Hospital Affiliated to Suzhou University, Zhangjiagang 215600, China
| | - Chenhu Gong
- Zhangjiagang First People 's Hospital, Zhangjiagang Hospital Affiliated to Suzhou University, Zhangjiagang 215600, China
| | - Jianfei Sun
- Zhangjiagang First People 's Hospital, Zhangjiagang Hospital Affiliated to Suzhou University, Zhangjiagang 215600, China
| | - Zhihong Zhang
- Zhangjiagang First People 's Hospital, Zhangjiagang Hospital Affiliated to Suzhou University, Zhangjiagang 215600, China
| | - Yucai Zhao
- Zhangjiagang First People 's Hospital, Zhangjiagang Hospital Affiliated to Suzhou University, Zhangjiagang 215600, China
| | - Chunping Ma
- Zhangjiagang First People 's Hospital, Zhangjiagang Hospital Affiliated to Suzhou University, Zhangjiagang 215600, China.
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73
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Bleloch JS, Ballim RD, Kimani S, Parkes J, Panieri E, Willmer T, Prince S. Managing sarcoma: where have we come from and where are we going? Ther Adv Med Oncol 2017; 9:637-659. [PMID: 28974986 PMCID: PMC5613860 DOI: 10.1177/1758834017728927] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Accepted: 07/26/2017] [Indexed: 02/06/2023] Open
Abstract
Sarcomas are a heterogeneous group of neoplasms of mesenchymal origin. Approximately 80% arise from soft tissue and 20% originate from bone. To date more than 100 sarcoma subtypes have been identified and they vary in molecular characteristics, pathology, clinical presentation and response to treatment. While sarcomas represent <1% of adult cancers, they account for approximately 21% of paediatric malignancies and thus pose some of the greatest risks of mortality and morbidity in children and young adults. Metastases occur in one-third of all patients and approximately 10-20% of sarcomas recur locally. Surgery in combination with preoperative and postoperative therapies is the primary treatment for localized sarcoma tumours and is the most promising curative possibility. Metastasized sarcomas, on the other hand, are treated primarily with single-agent or combination chemotherapy, but this rarely leads to a complete and robust response and often becomes a palliative form of treatment. The heterogeneity of sarcomas results in variable responses to current generalized treatment strategies. In light of this and the lack of curative strategies for metastatic and unresectable sarcomas, there is a need for novel subtype-specific treatment strategies. With the more recent understanding of the molecular mechanisms underlying the pathogenesis of some of these tumours, the treatment of sarcoma subtypes with targeted therapies is a rapidly evolving field. This review discusses the current management of sarcomas as well as promising new therapies that are currently underway in clinical trials.
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Affiliation(s)
- Jenna S Bleloch
- Department of Human Biology, University of Cape Town, South Africa
| | - Reyna D Ballim
- Department of Human Biology, University of Cape Town, South Africa
| | - Serah Kimani
- Department of Human Biology, University of Cape Town, South Africa
| | - Jeannette Parkes
- Department of Radiation Oncology, University of Cape Town, South Africa
| | - Eugenio Panieri
- Department of Surgery, University of Cape Town, South Africa
| | - Tarryn Willmer
- Department of Human Biology, University of Cape Town, South Africa
| | - Sharon Prince
- Department of Human Biology, Faculty of Health Sciences, University of Cape Town, Anzio Road, Observatory, 7925, South Africa
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74
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Liang GH, Liu N, He MT, Yang J, Liang ZJ, Gao XJ, Rahhal AH, He QY, Zhang HT, Zha ZG. Transcriptional regulation of Runx2 by HSP90 controls osteosarcoma apoptosis via the AKT/GSK-3β/β-catenin signaling. J Cell Biochem 2017; 119:948-959. [PMID: 28681940 DOI: 10.1002/jcb.26260] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 07/05/2017] [Indexed: 12/28/2022]
Abstract
Osteosarcoma (OS) is the most malignant primary bone tumor in children and adolescents with limited treatment options and poor prognosis. Recently, aberrant expression of Runx2 has been found in OS, thereby contributing to the development, and progression of OS. However, the upstream signaling molecules that regulate its expression in OS remain largely unknown. In the present study, we first confirmed that the inhibition of HSP90 with 17-AAG caused significant apoptosis of OS cells via a caspase-3-dependent mechanism, and that inhibition or knockdown of HSP90 by 17-AAG or siRNAs significantly suppressed mRNA and protein expression of Runx2. Furthermore, we provided evidence that Runx2 was transcriptionally regulated by HSP90 when using MG132 and CHX chase assay. We also demonstrated that β-catenin was overexpressed in OS tissue, and that knockdown of β-catenin induced pronounced apoptosis of OS cells in the presence or absence of 17-AAG. Interestingly, this phenomenon was accompanied with a significant reduction of Runx2 and Cyclin D1 expression, indicating an essential role of Runx2/Cyclin D1 in 17-AAG-induced cells apoptosis. Moreover, we demonstrated that the apoptosis of OS cells induced by 17-AAG did require the involvement of the AKT/GSK-3β/β-catenin signaling pathway by using pharmacological inhibitor GSK-3β (LiCl) or siGSK-3β. Our findings reveal a novel mechanism that Runx2 is transcriptionally regulated by HSP90 via the AKT/GSK-3β/β-catenin signaling pathway, and by which leads to apoptosis of OS cells.
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Affiliation(s)
- Gui-Hong Liang
- The Third Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Ning Liu
- Institute of Orthopedic Diseases and Center for Joint Surgery and Sports Medicine, the First Affiliated Hospital of Jinan University, Guangzhou, PR China
| | - Ming-Tang He
- Longgang Orthopedics Hospital of Shenzhen, Shenzhen, PR China
| | - Jie Yang
- Institute of Orthopedic Diseases and Center for Joint Surgery and Sports Medicine, the First Affiliated Hospital of Jinan University, Guangzhou, PR China
| | - Zu-Jian Liang
- The Third Affiliated Hospital, Guangzhou University of Chinese Medicine, Guangzhou, PR China
| | - Xue-Juan Gao
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou, PR China
| | - Ali Hasan Rahhal
- Institute of Orthopedic Diseases and Center for Joint Surgery and Sports Medicine, the First Affiliated Hospital of Jinan University, Guangzhou, PR China
| | - Qing-Yu He
- Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou, PR China
| | - Huan-Tian Zhang
- Institute of Orthopedic Diseases and Center for Joint Surgery and Sports Medicine, the First Affiliated Hospital of Jinan University, Guangzhou, PR China.,Key Laboratory of Functional Protein Research of Guangdong Higher Education Institutes, College of Life Science and Technology, Jinan University, Guangzhou, PR China
| | - Zhen-Gang Zha
- Institute of Orthopedic Diseases and Center for Joint Surgery and Sports Medicine, the First Affiliated Hospital of Jinan University, Guangzhou, PR China
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Tsuji K, Watanabe Y, Tokunaga H, Shimada M, Watanabe M, Yaegashi N. Primary osteosarcoma of the uterine cervix: A case report. J Obstet Gynaecol Res 2017; 43:1781-1783. [PMID: 28815813 DOI: 10.1111/jog.13443] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2017] [Revised: 05/16/2017] [Accepted: 06/10/2017] [Indexed: 12/31/2022]
Abstract
Primary osteosarcoma of the uterine cervix is extremely rare. Only 20 cases have been reported, 19 of which originated in the uterine corpus. We report a case of primary uterine cervical osteosarcoma with pulmonary metastasis in a 30-year-old nulligravida woman. The initial diagnosis was carcinosarcoma of the uterine cervix, as detected by cervical cytology and biopsy analysis. We performed a total hysterectomy, bilateral salpingo-oophorectomy and colostomy without macroscopic residual tumors in the abdominal cavity, but pelvic recurrent tumors appeared 14 days postoperatively. Both recurrent and metastatic tumors were effectively reduced by combination therapy of adriamycin with ifosfamide; however, the patient died as a result of of disease progression nine months after her first visit to our department.
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Affiliation(s)
- Keita Tsuji
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Yoh Watanabe
- Department of Obstetrics and Gynecology, Tohoku Medical and Pharmaceutical University, Sendai, Japan
| | - Hideki Tokunaga
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Muneaki Shimada
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Mika Watanabe
- Department of Pathology, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Nobuo Yaegashi
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Sendai, Japan
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76
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shRNA-mediated silencing of hTERT suppresses proliferation and promotes apoptosis in osteosarcoma cells. Cancer Gene Ther 2017; 24:325-332. [PMID: 28799566 DOI: 10.1038/cgt.2017.22] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 05/16/2017] [Accepted: 05/18/2017] [Indexed: 12/15/2022]
Abstract
In this study, we aim to explore the effects of short hairpin RNAs (shRNAs) targeting human telomerase reverse transcriptase (hTERT) on the proliferation and apoptosis of osteosarcoma cells. After the synthesis of shRNA that target hTERT, osteosarcoma cells were assigned into three experimental groups-shRNA group, scramble group and blank group. The transcription and expressions of the hTERT gene in transfected cells were measured with quantitative real-time polymerase chain reaction and western blotting. Cell proliferation in each group was detected by Cell Counting Kit-8 assay. Cell cycle and rates of apoptosis were measured by flow cytometry. Expressions of apoptosis-related proteins, caspase-9 and caspase-3, were detected by western blotting. Telomerase activity was measured by PCR enzyme-linked immunosorbent assay. Results show that both the mRNA and protein expressions of hTERT were significantly lowered after the transfection of hTERT-shRNA. The proliferation capacity of transfected osteosarcoma MG-63, SaOS2 and U2OS cells in the shRNA group was lower than that in the blank group. We also found changes and differences in the amount of cells throughout the cell cycle. All cells in the G0/G1 phase increased in numbers, whereas the number of cells in the S phase were reduced, with elevated apoptosis rates. Expressions of apoptosis-related proteins, caspase-9 and caspase-3, were increased and telomerase activity was decreased in the transfected shRNA group (all P<0.05). Our results showed that shRNA targeting of the hTERT gene was able to inhibit cell proliferation and promote apoptosis of osteosarcoma cells by reducing the telomerase activity.
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77
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The synergistic antitumor effect of cinobufagin and cisplatin in human osteosarcoma cell line in vitro and in vivo. Oncotarget 2017; 8:85150-85168. [PMID: 29156710 PMCID: PMC5689600 DOI: 10.18632/oncotarget.19554] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 06/24/2017] [Indexed: 01/01/2023] Open
Abstract
Cisplatin (CDDP) has been shown to be a promising anticancer drug that is effective against many types of cancer, which include osteosarcoma (OS). However, its therapeutic application is restricted by its toxicity in normal tissues and by side effects caused in patients. Reduction of the toxicity of CDDP is necessary to improve cancer treatment. In the present study, we attempted to clarify how cinobufagin, a traditional Chinese medicine, enhances CDDP-induced cytotoxicity in OS cells. OS 143B cells were treated with cinobufagin and CDDP alone or in combination. After low dose combined treatments with cinobufagin and CDDP, the effects of these therapeutics on cell proliferation, apoptosis, cell cycle, migration, invasion, and involvement in Notch pathway, as well as tumor growth and metastatic capability were determined. It was found that the combination of low doses of cinobufagin and CDDP markedly inhibited cell activity, motility, and induced apoptosis and cell cycle arrest in S phase, as well as suppressing tumor growth, metastasis and prolonging longer survival of nude mice in OS xenograft models compared with the actions of either drug alone or vehicle. The results also demonstrated that cinobufagin plus CDDP significantly suppressed the Notch pathway. The anticancer mechanism of these two drugs may involve intervention in the Notch signaling, which may contribute to inhibit tumor growth. All of these results suggest that application of lower concentration cinobufagin plus CDDP could produce a synergistic antitumor effect and this finding warrants further investigation for its potential clinical applications in human OS patients.
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78
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Li X, Yang Z, Han W, Lu X, Jin S, Yang W, Li J, He W, Qian Y. Fangchinoline suppresses the proliferation, invasion and tumorigenesis of human osteosarcoma cells through the inhibition of PI3K and downstream signaling pathways. Int J Mol Med 2017; 40:311-318. [PMID: 28586029 PMCID: PMC5504998 DOI: 10.3892/ijmm.2017.3013] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2016] [Accepted: 05/23/2017] [Indexed: 12/15/2022] Open
Abstract
Osteosarcoma is the most common malignant bone tumor. Most patients diagnosed with osteosarcoma are less than 20 years of age. Osteosarcoma cells proliferate rapidly and invade other tissues. At present, neoadjuvant chemotherapy is the primary pharmacodynamic strategy to prevent the progression of osteosarcoma. However, adverse effects of this strategy limit its long-term application. Previous research has shown that fangchinoline exerts antitumor effects on several types of tumor cells; however, its effect on osteosarcoma cells remains unknown. The present study evaluated the effects of fangchinoline on the proliferation, apoptosis, migration and invasion of osteosarcoma cells in vitro and on their tumorigenesis in vivo and determined the possible underlying mechanism of action. Fangchinoline-treated MG63 and U20S cells showed significantly decreased proliferation and significantly increased apoptosis. Fangchinoline markedly suppressed the migration and invasion of the MG63 cells. Fangchinoline-treated MG63 cells showed significantly decreased expression of phosphoinositide 3-kinase (PI3K) and Aktp-Thr308. Moreover, fangchinoline-treated MG63 cells showed downregulated expression of cyclin D1 and matrix metalloproteinase 2 and 9, which act downstream of PI3K, and upregulated expression of caspase-3 and caspase-8. Furthermore, fangchinoline suppressed the growth of subcutaneous osteosarcoma tumors in Balb/c mice subcutaneously injected with osteosarcoma cells. These findings suggest that fangchinoline inhibits the progression of osteosarcoma by suppressing the proliferation, migration and invasion and by accelerating the apoptosis of osteosarcoma cells. In addition, our results suggest that the mechanism underlying the antitumor effects of fangchinoline involve the inhibition of PI3K and its downstream signaling pathways.
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Affiliation(s)
- Xiucheng Li
- Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, P.R. China
| | - Zhifan Yang
- Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, P.R. China
| | - Weiqi Han
- Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, P.R. China
| | - Xuanyuan Lu
- Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, P.R. China
| | - Songtao Jin
- Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, P.R. China
| | - Wanlei Yang
- Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, P.R. China
| | - Jianlei Li
- Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, P.R. China
| | - Wei He
- Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, P.R. China
| | - Yu Qian
- Department of Orthopaedics, Shaoxing People's Hospital, Shaoxing Hospital of Zhejiang University, Shaoxing, Zhejiang 312000, P.R. China
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Abstract
A 35-year-old woman presented to our institution with tender, right knee swelling. Radiological and pathological work-up revealed metastatic osteosarcoma. Prior to the initiation of chemotherapy, she underwent a routine urine pregnancy test and was surprised with a positive result. Serum beta human chorionic gonadotropin (βhCG) levels were also consistently positive and rising. No gestational sac was seen at transvaginal ultrasound. The paraneoplastic ectopic secretion of βhCG has been well described in gestational trophoblastic and gonadal tumours but has very rarely been associated with other tumour types. This patient's βhCG level was reflective of osteosarcoma activity and normalised with response to chemotherapy. The prognostic implications of βhCG expression in more diverse tumours is unclear; however, where raised, it can be used to monitor disease activity.
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Affiliation(s)
- Emily Harrold
- Mater Misericordiae University Hospital, Dublin, Ireland
| | - Eileen McMahon
- Mater Misericordiae University Hospital, Dublin, Ireland
| | - Peadar McGing
- Mater Misericordiae University Hospital, Dublin, Ireland
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80
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Nadar RA, Margiotta N, Iafisco M, van den Beucken JJJP, Boerman OC, Leeuwenburgh SCG. Bisphosphonate-Functionalized Imaging Agents, Anti-Tumor Agents and Nanocarriers for Treatment of Bone Cancer. Adv Healthc Mater 2017; 6. [PMID: 28207199 DOI: 10.1002/adhm.201601119] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/23/2016] [Indexed: 12/14/2022]
Abstract
Bone metastases result from the invasion of primary tumors to bone. Current treatment modalities include local treatments such as surgery and radiotherapy, while systemic treatments include chemotherapy and (palliative) treatment of skeletal metastases. Nevertheless, once bone metastases have been established they remain incurable leading to morbidity and mortality. Bisphosphonates are a well-established class of drugs, which are increasingly applied in the treatment of bone cancers owing to their effective inhibition of tumor cells and suppression of bone metastases. The increased understanding of the mechanism of action of bisphosphonates on bone and tumor cells has prompted the development of novel bisphosphonate-functionalized imaging and therapeutic agents. This review provides an update on the preclinical efficacy of bisphosphonate-functionalized fluorophore, anti-tumor agents and nanocarriers for the treatment of bone metastases. After an overview of the general characteristics of bisphosphonates and their mechanisms of action, an outline is provided on the various conjugation strategies that have become available to functionalize imaging agents, anti-tumor agents and nanocarriers with bisphosphonates. Finally, the efficacy of these bisphosphonate-modified agents and carriers in preclinical studies is evaluated by reviewing their potential to target tumors and inhibit tumor growth in clinically relevant animal models for the treatment of bone cancer.
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Affiliation(s)
- Robin A. Nadar
- Department of Biomaterials; Radboud University Medical Center; Philips van Leydenlaan 25 6525 EX Nijmegen The Netherlands
| | - Nicola Margiotta
- Dipartimento di Chimica; Università degli Studi di Bari Aldo Moro; Via E. Orabona 4 70125 Bari Italy
| | - Michele Iafisco
- Institute of Science and Technology for Ceramics (ISTEC); National Research Council (CNR); Via Granarolo 64 48018 Faenza Italy
| | | | - Otto C. Boerman
- Department of Nuclear Medicine; Radboud University Medical Center; Geert Grooteplein Zuid 10 6525 AG Nijmegen The Netherlands
| | - Sander C. G. Leeuwenburgh
- Department of Biomaterials; Radboud University Medical Center; Philips van Leydenlaan 25 6525 EX Nijmegen The Netherlands
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81
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Okamura H, Yoshida K, Morimoto H, Teramachi J, Ochiai K, Haneji T, Yamamoto A. Role of Protein Phosphatase 2A in Osteoblast Differentiation and Function. J Clin Med 2017; 6:jcm6030023. [PMID: 28241467 PMCID: PMC5372992 DOI: 10.3390/jcm6030023] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 01/22/2017] [Accepted: 02/10/2017] [Indexed: 12/12/2022] Open
Abstract
The reversible phosphorylation of proteins plays hugely important roles in a variety of cellular processes, such as differentiation, proliferation, and apoptosis. These processes are strictly controlled by protein kinases (phosphorylation) and phosphatases (de-phosphorylation). Here we provide a brief history of the study of protein phosphorylation, including a summary of different types of protein kinases and phosphatases. One of the most physiologically important serine/threonine phosphatases is PP2A. This review provides a description of the phenotypes of various PP2A transgenic mice and further focuses on the known functions of PP2A in bone formation, including its role in osteoblast differentiation and function. A reduction in PP2A promotes bone formation and osteoblast differentiation through the regulation of bone-related transcription factors such as Osterix. Interestingly, downregulation of PP2A also stimulates adipocyte differentiation from undifferentiated mesenchymal cells under the appropriate adipogenic differentiation conditions. In osteoblasts, PP2A is also involved in the ability to control osteoclastogenesis as well as in the proliferation and metastasis of osteosarcoma cells. Thus, PP2A is considered to be a comprehensive factor in controlling the differentiation and function of cells derived from mesenchymal cells such as osteoblasts and adipocytes.
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Affiliation(s)
- Hirohiko Okamura
- Department of Histology and Oral Histology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto, Tokushima 770-8504, Japan.
| | - Kaya Yoshida
- Department of Oral healthcare educations, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto, Tokushima 770-8504, Japan.
| | - Hiroyuki Morimoto
- Department of Anatomy, School of Medicine, University of Occupational and Environmental Health, 1-1, Iseigaoka, Yahatanishi, Kitakyushu, Fukuoka 807-8555, Japan.
| | - Jumpei Teramachi
- Department of Histology and Oral Histology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto, Tokushima 770-8504, Japan.
| | - Kazuhiko Ochiai
- Department of Veterinary Nursing and Technology, School of Veterinary Science, Nippon Veterinary Nursing and Life Science University, Tokyo 180-8602, Japan.
| | - Tatsuji Haneji
- Department of Histology and Oral Histology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto, Tokushima 770-8504, Japan.
| | - Akihito Yamamoto
- Department of Histology and Oral Histology, Institute of Biomedical Sciences, Tokushima University Graduate School, 3-18-15, Kuramoto, Tokushima 770-8504, Japan.
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82
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Zhang D, Zhao Q, Sun H, Yin L, Wu J, Xu J, He T, Yang C, Liang C. Defective autophagy leads to the suppression of stem-like features of CD271 + osteosarcoma cells. J Biomed Sci 2016; 23:82. [PMID: 27863492 PMCID: PMC5116184 DOI: 10.1186/s12929-016-0297-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 11/03/2016] [Indexed: 11/25/2022] Open
Abstract
Background As an important stress-response mechanism, autophagy plays crucial role in the tumor formation and drug resistance of cancer cells including osteosarcoma (OS). OS cancer stem cells (CSCs) also are considered a key factor of tumorigenesis, drug resistance and tumor recurrence. However, the relationship between autophagy and OS CSCs still remains unclear. Methods CD271+ OS CSCs and CD271- OS cells were isolated by magnetic activated cell sorting. The autophagy level was evaluated by the mRNA expression of autophagy genes, the protein level of LC3II and p62, and the mean number of GFP-LC3 dot per cell. Lentivirus-delivered specific shRNA was utilized to inhibit the corresponding gene expression. The cell viability was examined with CCK8 assay. The cell proliferation level was detected with BrdU staining assay. Cell death was determined by Annexin V/PI double staining of fluorescence activated cell sorting, lactate dehydrogenase release and caspase-3 activity. Tumorigenicity ability was evaluated by colony and sphere formation assay, the protein expression of stemness markers and tumor formation in nude mice. Results Our data indicated that CD271+ OS CSCs had a similar basic autophagy level with CD271- OS cells. Autophagy deficiency had no observable effects on the levels of cell proliferation and death both in CD271+ and CD271- OS cells under normal condition. However, CD271+ OS cells showed a higher autophagy activity than CD271- OS cells under hypoxia and low nutrient (LH) condition. Moreover, autophagy-deficient CD271+ OS cells lost the advantage of tolerance to LH condition compared to CD271- OS cells. Meanwhile, autophagy deficiency enhanced the sensitivity to chemotherapeutics in the CD271+ cells to the comparable level in the CD271- cells. More importantly, deficient-autophagy decreased the protein expression of stemness markers and caused the disappearance of the superiority in tumorigenicity in vitro and vivo in CD271+ OS cells. Conclusion The results above demonstrated that autophagy contributes to the stem-like features of CD271+ OS CSCs. Inhibition of autophagy is a promising strategy in the CSCs-targeting OS therapy. Electronic supplementary material The online version of this article (doi:10.1186/s12929-016-0297-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Dong Zhang
- Department of Spinal Disease, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, People's Republic of China
| | - Qing Zhao
- Department of Spinal Disease, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, People's Republic of China
| | - Hao Sun
- Department of Spinal Disease, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, People's Republic of China
| | - Lijuan Yin
- Department of Pathology, Changhai Hospital, Second Military Medical University, Shanghai, People's Republic of China
| | - Jiajun Wu
- Department of Spinal Disease, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, People's Republic of China
| | - Jun Xu
- Department of Spinal Disease, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, People's Republic of China
| | - Tianxiang He
- Department of Spinal Disease, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, People's Republic of China
| | - Chunlei Yang
- Department of Spinal Disease, Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, 200437, People's Republic of China.
| | - Chengwei Liang
- Department of Orthopedics, Huadong Hospital Affiliated to Fudan University, No. 221 West Yan An Road, Shanghai, 200040, People's Republic of China.
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Lamora A, Talbot J, Mullard M, Brounais-Le Royer B, Redini F, Verrecchia F. TGF-β Signaling in Bone Remodeling and Osteosarcoma Progression. J Clin Med 2016; 5:E96. [PMID: 27827889 PMCID: PMC5126793 DOI: 10.3390/jcm5110096] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 10/27/2016] [Accepted: 10/28/2016] [Indexed: 12/17/2022] Open
Abstract
Osteosarcomas are the most prevalent malignant primary bone tumors in children. Despite intensive efforts to improve both chemotherapeutics and surgical management, 40% of all osteosarcoma patients succumb to the disease. Specifically, the clinical outcome for metastatic osteosarcoma remains poor; less than 30% of patients who present metastases will survive five years after initial diagnosis. Treating metastatic osteosarcoma thus remains a challenge. One of the main characteristics of osteosarcomas is their ability to deregulate bone remodelling. The invasion of bone tissue by tumor cells indeed affects the balance between bone resorption and bone formation. This deregulation induces the release of cytokines or growth factors initially trapped in the bone matrix, such as transforming growth factor-β (TGF-β), which in turn promote tumor progression. Over the past years, there has been considerable interest in the TGF-β pathway within the cancer research community. This review discusses the involvement of the TGF-β signalling pathway in osteosarcoma development and in their metastatic progression.
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Affiliation(s)
- Audrey Lamora
- INSERM, UMR 957, Equipe Labellisée Ligue contre le Cancer 2012, Faculté de Médecine, 1 rue Gaston Veil, 44035 Nantes cedex, France.
- Laboratoire de Physiopathologie de la Résorption Osseuse et Thérapie des Tumeurs Osseuses Primitives, Université de Nantes, 44000 Nantes, France.
- INSERM Liliane Bettencourt School, 75014 Paris, France.
| | - Julie Talbot
- INSERM, UMR 957, Equipe Labellisée Ligue contre le Cancer 2012, Faculté de Médecine, 1 rue Gaston Veil, 44035 Nantes cedex, France.
- Laboratoire de Physiopathologie de la Résorption Osseuse et Thérapie des Tumeurs Osseuses Primitives, Université de Nantes, 44000 Nantes, France.
| | - Mathilde Mullard
- INSERM, UMR 957, Equipe Labellisée Ligue contre le Cancer 2012, Faculté de Médecine, 1 rue Gaston Veil, 44035 Nantes cedex, France.
- Laboratoire de Physiopathologie de la Résorption Osseuse et Thérapie des Tumeurs Osseuses Primitives, Université de Nantes, 44000 Nantes, France.
| | - Benedicte Brounais-Le Royer
- INSERM, UMR 957, Equipe Labellisée Ligue contre le Cancer 2012, Faculté de Médecine, 1 rue Gaston Veil, 44035 Nantes cedex, France.
- Laboratoire de Physiopathologie de la Résorption Osseuse et Thérapie des Tumeurs Osseuses Primitives, Université de Nantes, 44000 Nantes, France.
| | - Françoise Redini
- INSERM, UMR 957, Equipe Labellisée Ligue contre le Cancer 2012, Faculté de Médecine, 1 rue Gaston Veil, 44035 Nantes cedex, France.
- Laboratoire de Physiopathologie de la Résorption Osseuse et Thérapie des Tumeurs Osseuses Primitives, Université de Nantes, 44000 Nantes, France.
| | - Franck Verrecchia
- INSERM, UMR 957, Equipe Labellisée Ligue contre le Cancer 2012, Faculté de Médecine, 1 rue Gaston Veil, 44035 Nantes cedex, France.
- Laboratoire de Physiopathologie de la Résorption Osseuse et Thérapie des Tumeurs Osseuses Primitives, Université de Nantes, 44000 Nantes, France.
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84
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Clinical Decision Making: Integrating Advances in the Molecular Understanding of Spine Tumors. Spine (Phila Pa 1976) 2016; 41 Suppl 20:S171-S177. [PMID: 27488298 DOI: 10.1097/brs.0000000000001836] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Literature review. OBJECTIVE To describe advancements in molecular techniques, biomarkers, technology, and targeted therapeutics and the potential these modalities hold to predict treatment paradigms, clinical outcomes, and/or survival in patients diagnosed with primary spinal column tumors. SUMMARY OF BACKGROUND DATA Advances in molecular technologies and techniques have influenced the prevention, diagnosis, and overall management of patients diagnosed with cancer. Assessment of genomic, proteomic alterations, epigenetic, and posttranslational modifications as well as developments in diagnostic modalities and targeted therapeutics, although the best studied in nonspinal metastatic disease, have led to increased understanding of spine oncology that is expected to improve patient outcomes. In this manuscript, the technological advancements that are expected to change the landscape of spinal oncology are discussed with a focus on how these technologies will aid in clinical decision-making for patients diagnosed with primary spinal tumors. METHODS A review of the literature was performed focusing on studies that integrated next-generation sequencing, circulating tumor cells/circulating tumor DNA, advances in imaging modalities and/or radiotherapy in the diagnosis and treatment of cancer. RESULTS We discuss genetic and epigenetic drivers, aberrations in receptor tyrosine kinase signaling, and emerging therapeutic strategies that include receptor tyrosine kinase inhibitors, immunotherapy strategies, and vaccine-based cancer prevention strategies. CONCLUSION The wide range of approaches currently in use and the emerging technologies yet to be fully realized will allow for better development of rationale therapeutics to improve patient outcomes. LEVEL OF EVIDENCE N/A.
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Li S, Zhang W, Yang Y, Ma T, Guo J, Wang S, Yu W, Kong L. Discovery of oral-available resveratrol-caffeic acid based hybrids inhibiting acetylated and phosphorylated STAT3 protein. Eur J Med Chem 2016; 124:1006-1018. [PMID: 27783972 DOI: 10.1016/j.ejmech.2016.10.028] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 10/02/2016] [Accepted: 10/14/2016] [Indexed: 01/05/2023]
Abstract
Constitutive activation of STAT3 has been found in a wide variety of cancers and demonstrated as a very attractive therapeutic target. Disrupting both acetylation and phosphorylation of STAT3 protein was hypothesized to greatly deactivate STAT3, therefore, treating cancers. To demonstrate the hypothesis, two series of novel resveratrol-caffeic acid hybrids were designed aiming to regulate both acetylation and phosphorylation of STAT3 protein, which is also the first report of the synthetic inhibitors simultaneously regulating two biological reactions of STAT3 to our knowledge. Most of these compounds were demonstrated with preferential antitumor activity with low IC50 values against two cancer cell lines. Particularly, compound 7d was found as an excellent STAT3 inhibitor with over 50-fold better potency than resveratrol and caffeic acid. Meanwhile, the novel derivatives significantly inhibited the proliferation and induced the apoptosis of tumor cells. Molecular docking further disclosed the binding modes of STAT3 with the inhibitors. In addition, compound 7d orally and significantly suppressed breast cancer 4T1 xenograft tumor growth in vivo, indicating its great potential as an efficacious drug candidate for human cancer therapy.
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Affiliation(s)
- Shanshan Li
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Lane, Nanjing 210009, People's Republic of China
| | - Wenda Zhang
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Lane, Nanjing 210009, People's Republic of China
| | - Yanwei Yang
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Lane, Nanjing 210009, People's Republic of China
| | - Ting Ma
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Lane, Nanjing 210009, People's Republic of China
| | - Jianpeng Guo
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Lane, Nanjing 210009, People's Republic of China
| | - Shanshan Wang
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Lane, Nanjing 210009, People's Republic of China
| | - Wenying Yu
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Lane, Nanjing 210009, People's Republic of China.
| | - Lingyi Kong
- State Key Laboratory of Natural Medicines, Department of Natural Medicinal Chemistry, China Pharmaceutical University, 24 Tong Jia Lane, Nanjing 210009, People's Republic of China.
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Kim H, Jeon TJ. Fucoidan Induces Cell Aggregation and Apoptosis in Osteosarcoma MG-63 Cells. Anim Cells Syst (Seoul) 2016. [DOI: 10.1080/19768354.2016.1215349] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
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87
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Zhu B, Cheng D, Li S, Zhou S, Yang Q. High Expression of XRCC6 Promotes Human Osteosarcoma Cell Proliferation through the β-Catenin/Wnt Signaling Pathway and Is Associated with Poor Prognosis. Int J Mol Sci 2016; 17:ijms17071188. [PMID: 27455247 PMCID: PMC4964557 DOI: 10.3390/ijms17071188] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 07/06/2016] [Accepted: 07/14/2016] [Indexed: 01/07/2023] Open
Abstract
Increasing evidences show that XRCC6 (X-ray repair complementing defective repair in Chinese hamster cells 6) was upregulated and involved in tumor growth in several tumor types. However, the correlation of XRCC6 and human osteosarcoma (OS) is still unknown. This study was conducted with the aim to reveal the expression and biological function of XRCC6 in OS and elucidate the potential mechanism. The mRNA expression level of XRCC6 was measured in osteosarcoma cells and OS samples by quantitative transcription-PCR (qRT-PCR). The expression of XRCC6 protein was measured using Western blot and immunohistochemical staining in osteosarcoma cell lines and patient samples. Cell Counting Kit 8 (CCK8), colony-forming and cell cycle assays were used to test cell survival capacity. We found that XRCC6 was overexpressed in OS cells and OS samples compared with the adjacent non-tumorous samples. High expression of XRCC6 was correlated with clinical stage and tumor size in OS. Reduced expression of XRCC6 inhibits OS cell proliferation through G2/M phase arrest. Most importantly, further experiments demonstrated that XRCC6 might regulate OS growth through the β-catenin/Wnt signaling pathway. In conclusion, these findings indicate that XRCC6 exerts tumor-promoting effects for OS through β-catenin/Wnt signaling pathway. XRCC6 may serve as a novel therapeutic target for OS patients.
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Affiliation(s)
- Bin Zhu
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yishan Road, Shanghai 200233, China.
| | - Dongdong Cheng
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yishan Road, Shanghai 200233, China.
| | - Shijie Li
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yishan Road, Shanghai 200233, China.
| | - Shumin Zhou
- Institute of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yishan Road, Shanghai 200233, China.
| | - Qingcheng Yang
- Department of Orthopedics, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, No. 600, Yishan Road, Shanghai 200233, China.
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