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Kumar V, Haldar S, Ghosh S, Saini S, Dhankhar P, Roy P. Pterostilbene-Isothiocyanate Inhibits Proliferation of Human MG-63 Osteosarcoma Cells via Abrogating β-Catenin/TCF-4 Interaction-A Mechanistic Insight. ACS OMEGA 2023; 8:43474-43489. [PMID: 38027335 PMCID: PMC10666272 DOI: 10.1021/acsomega.3c02732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 09/26/2023] [Accepted: 10/04/2023] [Indexed: 12/01/2023]
Abstract
Osteosarcoma, a highly metastasizing bone neoplasm, is a leading cause of death and disability in children and adolescents worldwide. Osteosarcoma is only suboptimally responsive to surgery and radio- and chemotherapy, that too with adverse side effects. Hence, there is a necessary need for safer alternative therapeutic approaches. This study evaluated the anticancer effects of the semi-synthetic compound, pterostilbene-isothiocyanate (PTER-ITC), on human osteosarcoma MG-63 cells through cytotoxicity, wound-healing, and transwell-migration assays. Results showed that PTER-ITC specifically inhibited the survival, proliferation, and migration of osteosarcoma cells. PTER-ITC induced apoptosis in MG-63 cells by disrupting mitochondrial membrane potential, as evident from the outcomes of different cytological staining. The antimetastatic potential of PTER-ITC was evaluated through immunostaining, RT-qPCR, and immunoblotting. In silico (molecular docking and dynamic simulation) and, subsequently, biochemical [co-immunoprecipitation (Co-IP) and luciferase reporter] assays deciphered the underlying mode-of-action of this compound. PTER-ITC increased E-cadherin and reduced N-cadherin levels, thereby facilitating the reversal of epithelial-mesenchymal transition (EMT). It also modulated the expressions of proliferative cell nuclear antigen (PCNA), caspase-3, poly [ADP-ribose] polymerase (PARP-1) and matrix metalloproteinase-2/9 (MMPs-2/9) at transcriptional and translational levels. PTER-ITC interfered with the β-catenin/transcription factor-4 (TCF-4) interaction in silico by occupying the β-catenin binding site on TCF-4, confirmed by their reduced physical interactions (Co-IP assay). This inhibited transcriptional activation of TCF-4 by β-catenin (as shown by luciferase reporter assay). In conclusion, PTER-ITC exhibited potent anticancer effects in vitro against human osteosarcoma cells by abrogating the β-catenin/TCF-4 interaction. Altogether, this study suggests that PTER-ITC may be regarded as a new approach for osteosarcoma treatment.
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Affiliation(s)
- Viney Kumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667,India
| | - Swati Haldar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667,India
- Centre of Nanotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Souvik Ghosh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667,India
- Centre of Nanotechnology, Indian Institute of Technology Roorkee, Roorkee 247667, Uttarakhand, India
| | - Saakshi Saini
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667,India
| | - Poonam Dhankhar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667,India
| | - Partha Roy
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand 247667,India
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Yang S, Chen J, Tan T, Wang N, Huang Y, Wang Y, Yuan X, Zhang P, Luo J, Luo X. Evodiamine Exerts Anticancer Effects Against 143B and MG63 Cells Through the Wnt/β-Catenin Signaling Pathway. Cancer Manag Res 2020; 12:2875-2888. [PMID: 32425601 PMCID: PMC7196244 DOI: 10.2147/cmar.s238093] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Accepted: 03/25/2020] [Indexed: 12/12/2022] Open
Abstract
Background Osteosarcoma is the most common primary malignant bone neoplasm and is associated with abysmal prognosis. There are limitations of current treatment methods. Therefore, developing new agents to treat osteosarcoma is exceptionally urgent. Aim This study aimed to evaluate the anticancer effects of evodiamine (EVO) on osteosarcoma cells and, meanwhile, to investigate the underlying mechanisms involved. Materials and Methods The effect of EVO on the proliferation of osteosarcoma was detected by MTT assay, crystal violet assay and colony formation assay. The effects of EVO on the migration and invasion of osteosarcoma were detected by wound-healing assay and transwell assay. The effect of EVO on apoptosis of osteosarcoma was measured by Hoechst 33258 staining and cell cycle assay. The protein expression levels were detected by Western blotting assay. The activity of Wnt/β-Catenin signaling pathway was detected by luciferase reporter assay and Western blotting assay. Results According to MTT, crystal violet and colony formation assay results, EVO significantly inhibited the cell proliferation in a dose-dependent manner. Hoechst 33258 staining assay revealed that EVO induced cell apoptosis in a concentration-dependent manner. Moreover, EVO inhibited the migration and invasion of the osteosarcoma cells. Mechanistic studies revealed that EVO suppresses metastatic through suppressing epithelial–mesenchymal transition (EMT) as indicated by elevating the expression of epithelial marker E‐cadherin and reducing the expression of mesenchymal markers N‐cadherin and vimentin, as well as EMT transcription factors Snail and MMPs. Subsequently, EVO induced cell cycle arrest at the G2/M phase that correlated with reduced levels of cyclin D1 protein, while the apoptotic effects of EVO were associated with the upregulation of Bax and Bad and a decrease in Bcl-2 protein levels. Furthermore, EVO exerted the anticancer effects by suppressing Wnt/β-catenin signal pathway in osteosarcoma cells. Conclusion In summary, EVO exhibited potent anticancer effects against human osteosarcoma cells and promoted apoptosis through suppressing Wnt/β-catenin signaling pathway. These results indicated that EVO may be regarded as a new approach for osteosarcoma treatment.
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Affiliation(s)
- Shengdong Yang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Jin Chen
- Department of Dermatology, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Tao Tan
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Nan Wang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Yanran Huang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Yuping Wang
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Xiaohui Yuan
- Key Laboratory of Clinical Diagnosis of Education Ministry, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Ping Zhang
- Key Laboratory of Clinical Diagnosis of Education Ministry, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Jinyong Luo
- Key Laboratory of Clinical Diagnosis of Education Ministry, College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, People's Republic of China
| | - Xiaoji Luo
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400016, People's Republic of China
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Teng J, Guo X, Wang H. CCEPR is a novel clinical biomarker for prognosis and regulates cell proliferation through PCNA in osteosarcoma. J Cell Biochem 2019; 120:12796-12802. [PMID: 30861164 DOI: 10.1002/jcb.28550] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 12/10/2018] [Accepted: 12/14/2018] [Indexed: 12/13/2022]
Abstract
CCEPR (cervical carcinoma expressed PCNA regulatory lncRNA) has been found to be upregulated and enhance cell proliferation in human cancers. However, the role of CCEPR in osteosarcoma remains to be discovered. In this study, we found CCEPR expression was elevated in osteosarcoma tissue specimens and cell lines compared with adjacent normal tissue specimens and osteoblast cell line, respectively. Meanwhile, osteosarcoma patients with advanced stage or tumor size greater than 8 cm had higher expression of CCEPR than patients with early stage or tumor size less than or equal to 8 cm, respectively. Survival analysis suggested that osteosarcoma patients with high CCEPR expression had a worse overall survival rate than those with low CCEPR expression. The in vitro study indicated that CCEPR positively regulated proliferating cell nuclear antigen (PCNA) expression in osteosarcoma cells and silencing of CCEPR inhibited osteosarcoma cell proliferation through decreasing PCNA expression. In conclusion, CCEPR is a potential prognostic predictor and functions as oncogenic long non-coding RNA (lncRNA) to regulate cell proliferation via PCNA in osteosarcoma.
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Affiliation(s)
- Jiawen Teng
- Department of Orthopaedics, The Affiliated Hospital of Shandong Traditional Chinese Medicine University, Jinnan, Shandong, China
| | - Xingfeng Guo
- Department of Orthopaedics, Jinling Hospital, School of Medicine, Nanjing University, Nanjing, Jiangsu, China
| | - He Wang
- Department of Orthopaedics, Tianjin Baodi Hospital, Baodi Clinical College of Tianjin Medical University, Tianjin, China
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Park HR, Kim YW, Park JH, Maeng YH, Nojima T, Hashimoto H, Park YK. Low Expression of P63 and P73 in Osteosarcoma. TUMORI JOURNAL 2018; 90:239-43. [PMID: 15237589 DOI: 10.1177/030089160409000214] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background The recent discovery of two p53-related genes, p63 and p73, has revealed an additional level of complexity to the study of p53 function. Both genes encode multiple proteins arising from alternative promoter usage and splicing, with transactivation, DNA-binding, and tetramerization domains. Recent data support a role for p63 in squamous and transitional cell carcinomas, as well as in certain lymphomas and thymomas. Methods To characterize the involvement of p63 and p73 in the development of osteosarcoma, we analyzed the expression and mutation of TAp63 and TAp73 in six osteosarcoma cell lines and twelve osteosarcoma specimens. Results Semiquantitative DNA/PCR analysis revealed that eight (67%) and six (50%) out of twelve osteosarcoma specimens showed significantly reduced levels of p63 and p73 transcription, respectively. Direct sequencing of the entire coding region detected no mutations in cell lines or osteosarcoma specimens. Conclusions Our data suggest that low expression of p63 and p73 is relatively common in osteosarcomas and might contribute to their molecular pathogenesis.
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Affiliation(s)
- Hye-Rim Park
- Department of Pathology, College of Medicine, Hallym University, Anyang, Korea
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Shi W, Wang R, Niu S, Li Y, Ma C, Zhang G, Cong B. Dynamaic changes of proliferation and apoptosis in rat retina development. INTERNATIONAL JOURNAL OF CLINICAL AND EXPERIMENTAL PATHOLOGY 2017; 10:11679-11684. [PMID: 31966527 PMCID: PMC6966058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 10/24/2017] [Indexed: 06/10/2023]
Abstract
Precise coordination of cell proliferation and apoptosis is essential for proper organ morphogenesis and function during mammalian development. The retina is a part of the central nervous system, with a function in capture and conversion of light particles into nerve signals. However, the dynamical changes of cell proliferation and apoptosis during the retinal development is unclear. Thus, this study was to observe the changes of proliferating cell nuclear antigen expression and apoptosis during the retina development in rats. Rats from different developmental stages (embryonic days 14-20 (E14-20), postnatal days 0-15 (P0-15) and adult (P36)) were used. The eyeballs were removed and fixed immediately in formalin. The tissues were embedded in paraffin. Sections were prepared for immunohistochemical staining and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL). PCNA expression appeared in large quantities in rat retina from E14 to P7, decreased obviously since P9, and could not be observed since P15. Apoptotic cells appeared in small quantities since E18. And then apoptotic cells dramatically increased during the retina development, and peaked at P7. As maturation continued, these cells decreased gradually. Apoptotic cells could not be found in the mature retina. Cell proliferation and apoptosis shows orderly and dynamic changes during the retina development, which is essential for the development of normal structure and function of the retina.
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Affiliation(s)
- Weibo Shi
- Department of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular IdentificationShijiazhuang, China
| | - Ran Wang
- Department of Psychiatry, The First Hospital of Hebei Medical UniversityShijiazhuang, China
| | - Shiba Niu
- Department of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular IdentificationShijiazhuang, China
| | - Yingmin Li
- Department of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular IdentificationShijiazhuang, China
| | - Chunling Ma
- Department of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular IdentificationShijiazhuang, China
| | - Guozhong Zhang
- Department of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular IdentificationShijiazhuang, China
| | - Bin Cong
- Department of Forensic Medicine, Hebei Medical University, Hebei Key Laboratory of Forensic Medicine, Collaborative Innovation Center of Forensic Medical Molecular IdentificationShijiazhuang, China
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MicroRNA-199a-5p promotes tumour growth by dual-targeting PIAS3 and p27 in human osteosarcoma. Sci Rep 2017; 7:41456. [PMID: 28120918 PMCID: PMC5264164 DOI: 10.1038/srep41456] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2016] [Accepted: 12/19/2016] [Indexed: 02/06/2023] Open
Abstract
Osteosarcoma (OS) is the most common primary bone malignancy and remains a leading cause of cancer-related deaths in adolescents. Emerging evidence indicates that microRNAs (miRNAs) are correlated with clinical and biological characteristics of OS. However, the involvement of miR-199a-5p in OS development remains unclear. In this study, we examined the function of miR-199a-5p in vitro and in vivo. The results showed that miR-199a-5p was significantly up-regulated in OS patient tissues and cells. The inhibition of miR-199a-5p led to a significant decrease in cell proliferation and tumour growth. We further demonstrated that miR-199a-5p could directly bind to the 3′UTRs of the mRNA of both PIAS3 and p27 and mediate a decrease in the protein levels of PIAS3 and p27, thereby stimulating STAT3 activation and cell cycle progression in OS cells. Rescue experiments of PIAS3 and p27 further revealed that PIAS3 and p27 were functional targets of miR-199a-5p. Moreover, enhancing the expressions of both PIAS3 and p27 using miR-199a-5p-targeted inhibitors in an OS xenograft model was shown to be a promising approach for OS clinical therapy. Our findings indicate that the pathway of miR-199a-5p targeting both PIAS3 and p27 is a possible mechanism that contributes to tumour growth in OS.
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Zhang RX, Li Y, Tian DD, Liu Y, Nian W, Zou X, Chen QZ, Zhou LY, Deng ZL, He BC. Ursolic acid inhibits proliferation and induces apoptosis by inactivating Wnt/β-catenin signaling in human osteosarcoma cells. Int J Oncol 2016; 49:1973-1982. [PMID: 27665868 DOI: 10.3892/ijo.2016.3701] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2016] [Accepted: 09/01/2016] [Indexed: 11/06/2022] Open
Abstract
Although multiple chemotherapeutic agents have been used for osteosarcoma (OS) treatment, their mechanisms need further study. Ursolic acid (UA), a pentacyclic triterpenoid, can reduce cell proliferation and induce apoptosis in various cancer cells, such as OS. However, the exact mechanism underlying this function remains unclear. In this study, we investigated the anti‑proliferative effect of UA in human OS 143B cells and dissected the possible molecular mechanism underlying this effect. We demonstrated that UA can reduce cell proliferation, induce apoptosis and arrest cell cycle in 143B cells, as well as inhibit OS tumor growth in a mouse xenograft model. Using a luciferase reporter assay, we found that the Wnt/β‑catenin signaling is inhibited by UA in 143B cells. Correspondingly, the expression level and nuclear translocation of β‑catenin are both decreased by UA. Exogenous expression of β‑catenin attenuates the anticancer effect of UA in 143B cells, while knockdown of β‑catenin enhances this effect. UA increases the expression level of p53 in a concentration‑dependent manner, and inhibition of p53 reduces the anticancer effect of UA in 143B cells. Moreover, inhibition of p53 partly reverses the UA‑induced downregulation of β‑catenin, as do the targets of Wnt/β‑catenin signaling, such as c‑Myc and cyclin D1. Our findings indicated that UA can inhibit the proliferation of 143B OS cells through inactivation of Wnt/β-catenin signaling, which may be mediated partly by upregulating the expression of p53.
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Affiliation(s)
- Ran-Xi Zhang
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Yang Li
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Dong-Dong Tian
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Yang Liu
- Department of Orthopaedics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Wu Nian
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Xiang Zou
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Qian-Zhao Chen
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Lin-Yun Zhou
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Zhong-Liang Deng
- Department of Orthopaedics, The Second Affiliated Hospital of Chongqing Medical University, Chongqing, P.R. China
| | - Bai-Cheng He
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
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Liu Y, Liu YZ, Zhang RX, Wang X, Meng ZJ, Huang J, Wu K, Luo JY, Zuo GW, Chen L, Yin LJ, Deng ZL, He BC. Oridonin inhibits the proliferation of human osteosarcoma cells by suppressing Wnt/β-catenin signaling. Int J Oncol 2014; 45:795-803. [PMID: 24859848 DOI: 10.3892/ijo.2014.2456] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2014] [Accepted: 05/02/2014] [Indexed: 11/06/2022] Open
Abstract
It has been reported that oridonin (ORI) can inhibit proliferation and induce apoptosis in various types of cancer cell lines. However, the exact mechanism for this function remains unclear. In this study, we investigated the proliferation inhibitory effect of ORI on human osteosarcoma (OS) 143B cells and dissected the possible molecular mechanism(s) underlying this effect. We demonstrated that ORI can inhibit proliferation, induce apoptosis and arrest the cell cycle in 143B cells. Using luciferase reporter assay, we found that the Wnt/β-catenin signaling was inhibited in 143B cells by ORI. Accordingly, the total protein levels and nuclear translocation of β-catenin were reduced by ORI treatment. ORI increased glycogen synthase kinase 3β (GSK3β) activity and upregulated Dickkopf-1 (Dkk-1) expression. We found that Dkk-1 overexpression or β-catenin knockdown can potentiate the proliferation inhibitory effect of ORI in 143B cells, while β-catenin overexpression attenuated this effect. Using the xenograft tumor model of human OS, we demonstrated that ORI effectively inhibited the growth of tumors. Histological examination showed that ORI inhibited cancer cell proliferation, decreased the expression of PNCA and β-catenin. Our findings suggest that ORI can inhibit 143B OS cell proliferation by downregulating Wnt/β-catenin signal transduction, which may be mediated by upregulating the Dkk-1 expression and/or enhancing the function of GSK3β. Therefore, ORI can be potentially used as an effective adjuvant agent for the clinical management of OS.
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Affiliation(s)
- Yang Liu
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P.R. China
| | - Ying-Zi Liu
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Ran-Xi Zhang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P.R. China
| | - Xing Wang
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P.R. China
| | - Zi-Jun Meng
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P.R. China
| | - Jun Huang
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Ke Wu
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
| | - Jin-Yong Luo
- Key Laboratory of Diagnostic Medicine designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing, P.R. China
| | - Guo-Wei Zuo
- Key Laboratory of Diagnostic Medicine designated by the Chinese Ministry of Education, Chongqing Medical University, Chongqing, P.R. China
| | - Liang Chen
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P.R. China
| | - Liang-Jun Yin
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P.R. China
| | - Zhong-Liang Deng
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Chongqing Medical University, Chongqing, P.R. China
| | - Bai-Cheng He
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology, Chongqing Medical University, Chongqing, P.R. China
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Liu Y, Wang W, Xu J, Li L, Dong Q, Shi Q, Zuo G, Zhou L, Weng Y, Tang M, He T, Luo J. Dihydroartemisinin inhibits tumor growth of human osteosarcoma cells by suppressing Wnt/β-catenin signaling. Oncol Rep 2013; 30:1723-30. [PMID: 23917613 DOI: 10.3892/or.2013.2658] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2013] [Accepted: 07/12/2013] [Indexed: 11/06/2022] Open
Abstract
Osteosarcoma (OS) is the most common type of bone cancer. Even with early diagnosis and aggressive treatment, the prognosis for OS is poor. In the present study, we investigated the proliferation and invasion inhibitory effect of dihydroartemisinin (DHA) on human OS cells and the possible molecular mechanisms involved. We demonstrated that DHA can inhibit proliferation, decrease migration, reduce invasion and induce apoptosis in human OS cells. Using an in vivo tumor animal model, we confirmed that DHA can prevent OS formation and maintain intact bone structure in athymic mice. In addition, we examined the possible molecular mechanisms mediating the function of DHA. We found that the total protein levels and transcriptional activity of β-catenin in OS cells are reduced by DHA treatment, and this may result from the increased catalytic activity of glycogen synthase kinase 3β (GSK3β). Moreover, the inhibitory effect of DHA on OS cells is reversed by overexpression of β-catenin, but is further enhanced by knockdown of β-catenin, respectively. Collectively, our results reveal that DHA can inhibit tumor growth of OS cells by inactivating Wnt/β-catenin signaling. Therefore, DHA is a promising chemotherapy agent in the treatment of human OS.
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Affiliation(s)
- Yueliang Liu
- Key Laboratory of Diagnostic Medicine Designated by The Chinese Ministry of Education, Chongqing Medical University, Chongqing 400016, P.R. China
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Gu S, He J. Daphnoretin induces cell cycle arrest and apoptosis in human osteosarcoma (HOS) cells. Molecules 2012; 17:598-612. [PMID: 22231496 PMCID: PMC6268824 DOI: 10.3390/molecules17010598] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Revised: 12/29/2011] [Accepted: 12/30/2011] [Indexed: 11/16/2022] Open
Abstract
In this study antiproliferation, cell cycle arrest and apoptosis induced by daphnoretin in human osteosarcoma (HOS) cells were investigated. Antiproliferative activity was measured with the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The IC(50) value of daphnoretin was 3.89 μM after 72 h treatment. Induction of apoptosis was evidenced by apoptotic body appearance and Annexin V-FITC/PI apoptosis detection kit. Flow cytometric analysis indicated daphnoretin arrested the cell cycle in the G2/M phase. Western-blot assay showed that the G2/M phase arrest was accompanied by down-regulation of cdc2, cyclin A and cyclin B1. Moreover, daphnoretin inhibited Bcl-2 expression and induced Bax expression to desintegrate the outer mitochondrial membrane and causing cytochrome c release. Mitochondrial cytochrome c release was associated with the activation of caspase-9 and caspase-3 cascade. Our results demonstrated that daphnoretin caused death of HOS cells by blocking cells successively in G2/M phases and activating the caspase-3 pathway.
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Affiliation(s)
- Shoubin Gu
- Department of Orthopaedics, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China.
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Proliferative activity (ki-67 expression) and outcome in high grade osteosarcoma: a study of 27 cases. Sarcoma 2011; 4:47-55. [PMID: 18521434 PMCID: PMC2408362 DOI: 10.1155/s1357714x00000086] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Purpose. Although pre-operative chemotherapy has improved the
prognosis for individuals with osteosarcoma, approximately 40% of patients will die of their
disease.The aim of this study was to quantitate proliferative activity in high grade
osteosarcomas and to determine whether proliferation is a prognostic factor. Patients. The study consisted of 27 patients with high grade
non-metastatic osteosarcoma at various sites for whom pre-operative biopsies and
resection specimens were available for review. All patients were treated similarly and
had at least 24 months' follow-up from the date of diagnosis. Methods. Proliferative activity (Ki-67 expression) was examined in the
diagnostic biopsies immunohistochemically using the MIB-1 antibody. Proliferation was
quantitated in two ways; (1) the number of immunopositive cells was counted manually
using an ocular grid; or (2) the percentage of immunopositive nuclear area was assessed
using morphometric image analysis. Proliferative index was evaluated in relation to
patient outcome. Results. Proliferative activity was seen in all biopsies.The median
proliferative index as determined by counting cells was 24% (mean of 27%, range of 7–61%)
and by image analysis was 2% (mean 3%, range 0.32–8.4).The correlation between
MIB-1 proliferation indices determined either by image analysis methodology or manual cell
counting was high (Spearman's rho=0.79). Proliferative index did not appear to predict either
disease-free or overall survival. Discussion. Tumor proliferation does not appear to be prognostic for
high grade osteosarcomas.Whether assessment of this feature in conjunction with other
tumor characteristics might be prognostic requires further study.
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Jawad SN, Abdullah BH. Proliferative, apoptotic and angiogenic potentials in jaws and long bones osteosarcomas: a comparative immunohistochemical study. J Oral Pathol Med 2010; 39:681-6. [DOI: 10.1111/j.1600-0714.2010.00923.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Sanches DS, Pires CG, Fukumasu H, Cogliati B, Matsuzaki P, Chaible LM, Torres LN, Ferrigno CRA, Dagli MLZ. Expression of connexins in normal and neoplastic canine bone tissue. Vet Pathol 2009; 46:846-59. [PMID: 19429987 DOI: 10.1354/vp.08-vp-0263-s-fl] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Previous studies showed that intercellular communication by gap junctions has a role in bone formation. The main connexin involved in the development, differentiation, and regulation of bone tissue is connexin (Cx) 43. In addition, Cx46 is also expressed, mostly localized within the trans-Golgi region. Alterations in the expression pattern and aberrant location of these connexins are associated with oncogenesis, demonstrating a deficient gap junctional intercellular communication (GJIC) capacity in neoplastic tissues. In this study, we evaluated normal and neoplastic bone tissues regarding the expression of Cx43 and Cx46 by immunofluorescence, gene expression of these connexins by real-time PCR, and their correlation with cell proliferation index and deposition of collagen. Fourteen neoplastic bone lesions, including 13 osteosarcomas and 1 multilobular tumor of bone, were studied. The mRNA levels of Cx43 were similar between normal and neoplastic bone tissue. In normal bone tissue, the Cx43 protein was found mainly in the intercellular membranes. However, in all bone tumors studied here, the Cx43 was present in both cell membranes and also aberrantly in the cytoplasm. Regarding only tumor samples, we determined a possible inverse correlation between Cx43 expression and cellular proliferation, although a positive correlation between Cx43 expression and collagen deposition was also noted. In contrast, Cx46 had lower levels of expression in neoplastic bone tissues when compared with normal bone and was found retained in the perinuclear region. Even though there are differences between these two connexins regarding expression in neoplastic versus normal tissues, we concluded that there are differences regarding the subcellular location of these connexins in normal and neoplastic dog bone tissues and suggest a possible correlation between these findings and some aspects of cellular proliferation and possibly differentiation.
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Affiliation(s)
- D S Sanches
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, Av. Prof. Dr. Orlando Marques de Paiva, 87-Cidade Universitária-CEP, 05508-900, São Paulo-SP, Brazil.
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Immunohistochemical Estimates of Angiogenesis, Proliferative Activity, p53 Expression, and Multiple Drug Resistance Have No Prognostic Impact in Osteosarcoma: A Comparative Clinicopathological Investigation. Sarcoma 2009; 2008:874075. [PMID: 19266050 PMCID: PMC2650184 DOI: 10.1155/2008/874075] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2008] [Accepted: 11/17/2008] [Indexed: 11/30/2022] Open
Abstract
Purpose. To investigate angiogenesis, multiple drug resistance (MDR) and proliferative activity as prognostic variables in patients suffering from osteosarcoma.
Methods. Histologic biopsies from 117 patients treated in the period from 1972 through 1999 were immunohistologically investigated regarding angiogenesis (CD34), proliferative activity (MIB-1), and the expression of p53 and MDR (P-glycoprotein (Pgp); clones JSB-1, C494, and MRK16). Quantitative and semiquantitative scores of immunoreactive cells were analyzed statistically along with retrospectively obtained clinicopathologic variables.
Results. Chemotherapy reduced the rate of amputations (P = .00002). The Pgp was overexpressed (score ≥2) in 48% of the primary, diagnostic biopsies, and high Pgp correlated with high Pgp in postsurgical specimens (P = .003). In contrast, no such associations were disclosed for estimates of angiogenesis (P = .64) and p53 (P > .32), whereas the MIB-1 index was reduced in the post-chemotherapy specimens (P = .02).
The overall, disease-specific survival was 47%, increasing to 54% in patients receiving pre-operative chemotherapy. Statistical analyses showed prognostic impact exclusively by patient age and type of osteosarcoma.
Discussion. The studied series of patients documented already prior to the chemotherapy era, a rather excellent survival and estimates of angiogenesis, proliferation, p53, and Pgp expressions, did not demonstrate sufficient power to serve as predictors of treatment response or survival.
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Diniz AFNMS, Filho JAA, Alencar RDCG, Garcia RR, Silva MRB, Ribeiro-Rotta RF, Silva MAGS, Batista AC, Mendonça EF. Low-grade central osteosarcoma of the mandible: a case study report. ACTA ACUST UNITED AC 2006; 103:246-52. [PMID: 17234543 DOI: 10.1016/j.tripleo.2005.11.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2005] [Revised: 11/15/2005] [Accepted: 11/15/2005] [Indexed: 10/24/2022]
Abstract
Low-grade central osteosarcoma is a rare type of osteosarcoma with peculiar clinical radiographic and microscopic features. The aim of this article is to report and discuss a case of low-grade central osteosarcoma in the mandible of a 42-year-old woman. The patient reported sensing mild pain and tooth mobility for a period of 4 years, despite continuous dental treatment. Radiographic evaluation showed a mixed radiopaque/radiolucenct lesion in the body, ramus, coronoid process, and condyle of the left side of the mandible. Destruction of the mandibular cortex in the area was also observed. After incisional biopsy, the patient underwent hemimandibulectomy. Microscopic findings showed a tumor exhibiting spindle cells with nuclear hyperchromasia and no mitotic activity, irregular osteoid formation, and soft tissue infiltration. The immunohistochemical analysis of the expression of Ki-67, Cyclin B1, and PCNA proteins (cellular proliferation markers) revealed a very low Ki-67+ and Cyclin B1+ cell index (mean 7% and 3%, respectively), but a moderate number of PCNA+ cells (mean 49%). The 2 years of clinical and imaging postoperative follow-up showed no evidence of recurrence. Clinicians should be aware of these lesions, because histopathologicially low-grade central osteosarcoma may be misinterpreted as fibrous dysplasia.
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Affiliation(s)
- Ana Flávia N M S Diniz
- Department of Stomatology, School of Dentistry, Federal University of Goiás, Goiás, Brazil
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McHugh JB, Thomas DG, Herman JM, Ray ME, Baker LH, Adsay NV, Rabah R, Lucas DR. Primary versus radiation-associated craniofacial osteosarcoma. Cancer 2006; 107:554-62. [PMID: 16795069 DOI: 10.1002/cncr.22019] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
BACKGROUND Craniofacial osteosarcoma differs from long bone osteosarcoma in that patients are older, tumors are often low grade, and prognosis is more favorable. Although most are sporadic, some tumors occur in association with prior radiation therapy. The purpose of the current study was to compare clinicopathologic and prognostic features of primary and radiation-associated osteosarcoma. METHODS The study group consisted of 15 primary and 6 radiation-associated osteosarcomas. Clinical and follow-up data were obtained in every case. Tissue microarrays were immunohistochemically stained for p53, pRB, Ki-67 (MIB-1), and ezrin. DNA was sequenced for TP53 mutations. RESULTS All radiation-associated osteosarcomas were high grade and half were fibroblastic. In contrast, 47% of primary craniofacial osteosarcomas were high grade and only 1 was fibroblastic. All radiation-associated osteosarcomas recurred, half the patients died of disease, 2 were alive with unresectable tumors, whereas only 1 was alive without disease. In contrast, 80% of patients with primary tumors were alive without disease, 33% had local recurrences, and 13% died of disease. Radiation-associated tumors overexpressed p53 more often (33% vs. 13%), more often had TP53 mutations (33% vs. 8%), had higher proliferative activity (67% vs. 0% showing >50% MIB-1 staining), and expressed ezrin more frequently (83% vs. 40%) than primary tumors. Compared with a control group of 24 high- and 7 low-grade primary extremity osteosarcomas, radiation-associated tumors marked as the high-grade tumors. CONCLUSIONS Craniofacial radiation-associated osteosarcomas are high-grade tumors that behave more aggressively than most primary craniofacial osteosarcomas. In addition, they demonstrate higher expression rates of adverse prognostic indicators, further highlighting the distinction.
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Affiliation(s)
- Jonathan B McHugh
- Department of Pathology, University of Michigan, Ann Arbor, Michigan 48109-0054, USA
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Park HR, Jung WW, Bertoni F, Bacchini P, Park JH, Kim YW, Park YK. Molecular analysis of p53, MDM2 and H-ras genes in low-grade central osteosarcoma. Pathol Res Pract 2005; 200:439-45. [PMID: 15310147 DOI: 10.1016/j.prp.2004.04.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Low-grade central osteosarcoma is an uncommon form that is characterized by a long premorbid history, and is compatible with prolonged survival after treatment. However, molecular abnormalities are rare in low-grade central osteosarcomas, whereas p53 mutations occur in approximately 20% of conventional high-grade osteosarcomas. In this study, 21 cases of low-grade central osteosarcoma were analyzed for mutations of the p53 gene, amplification of the MDM2 gene, and mutations of the H-ras gene using formalin-fixed, paraffin-embedded materials. We also examined the expression of p53, MDM2, and p21WAF1 protein immunohistochemically and assessed the proliferation activities using the monoclonal antibody MIB-1. One case (4.7%) showed strong p53 immunoreactivity, whereas p53 gene mutations were not detected at all. Seven cases (33.3%) showed immunoreactivity for MDM2 protein. As for gene alterations, MDM2 amplification was found in four cases (19.0%). p21WAF1 expression was detected in 12 cases (57.1%). MIB-1-LI showed very low levels in all the cases and no significant correlation with p53 or MDM2 immuno-reactivity. None of the tumors showed H-ras mutations. In conclusion, the number of p53 gene alterations in low-grade central osteosarcomas is lower than that in conventional high-grade osteosarcomas. MDM2 alterations and p21WAF1 expression might be involved in the tumorigenesis of low-grade central osteosarcomas.
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Affiliation(s)
- Hye-Rim Park
- Department of Pathology, Hallym University, Anyang, Republic of Korea
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Junior AT, de Abreu Alves F, Pinto CAL, Carvalho AL, Kowalski LP, Lopes MA. Clinicopathological and immunohistochemical analysis of twenty-five head and neck osteosarcomas. Oral Oncol 2003; 39:521-30. [PMID: 12747978 DOI: 10.1016/s1368-8375(03)00017-4] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The aim of this study was to analyze the clinicopathological features and immunohistochemical expression of p53, MDM2, CDK4, PCNA and Ki67 proteins in 25 head and neck osteosarcomas registered in a single institution. The mean age of the patients was 29 years and the most common site was the mandible (60%). The predominant histological type was the chondroblastic (72%) and 52% of the cases were classified as intermediate-grade of malignancy. The immunohistochemical analysis displayed positivity in 52% of the cases for p53, 24% for MDM2, 84% for CDK4, 92% for PCNA and 88% for Ki-67. The majority of cases were treated with surgery alone or associated with chemotherapy. Five patients developed local recurrences, four had distant metastasis and six had persistent disease after initial treatment. The overall 5-year and 10-year survival rates were 59% and 49%, respectively, and the most important prognostic factors were prior history of radiation exposure and osteoblastic histological type.
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Affiliation(s)
- Ademar Takahama Junior
- Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Av. Limeira, 901 Areião, Piracicaba 13414900, Brazil
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