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Recent Developments on the Roles of Calcium Signals and Potential Therapy Targets in Cervical Cancer. Cells 2022; 11:cells11193003. [PMID: 36230965 PMCID: PMC9563098 DOI: 10.3390/cells11193003] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 09/14/2022] [Accepted: 09/20/2022] [Indexed: 12/24/2022] Open
Abstract
Intracellular calcium (Ca2+) concentration ([Ca2+]i) is implicated in proliferation, invasion, and metastasis in cancerous tissues. A variety of oncologic therapies and some candidate drugs induce their antitumor effects (in part or in whole) through the modulation of [Ca2+]i. Cervical cancer is one of most common cancers among women worldwide. Recently, major research advances relating to the Ca2+ signals in cervical cancer are emerging. In this review, we comprehensively describe the current progress concerning the roles of Ca2+ signals in the occurrence, development, and prognosis of cervical cancer. It will enhance our understanding of the causative mechanism of Ca2+ signals in cervical cancer and thus provide new sights for identifying potential therapeutic targets for drug discovery.
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Elgehama A. Selective obstruction of the mTORC2 complex by a naturally occurring cholestane saponin (OSW-1) for inhibiting prostate cancer cell growth. JOURNAL OF ASIAN NATURAL PRODUCTS RESEARCH 2022; 24:663-672. [PMID: 34292111 DOI: 10.1080/10286020.2021.1951255] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 06/29/2021] [Indexed: 06/13/2023]
Abstract
Ornithogalum caudatum Ait (OCA) is a natural product used in Chinese traditional medicine. The cholestane saponin OSW-1 is isolated from plant OCA and has recently been shown to have potent cytotoxic effects against different types of cancers. The therapeutic efficacy of OSW-1 on prostate cancer and its underlying mechanism are yet to be established. OSW-1 inhibited the growth of prostate cancer cells by interrupting the interaction between mTOR and Rictor/mTORC2. This mechanism showed a better therapeutic outcome than that of the conventional inhibition of mTOR and provided a basis for as sisting modern prostate cancer treatment strategies.
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Affiliation(s)
- Ahmed Elgehama
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing 210023, China
- Nanjing Sky Technology Co. Ltd., Nanjing 210023, China
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Selective targeting of the androgen receptor-DNA binding domain by the novel antiandrogen SBF-1 and inhibition of the growth of prostate cancer cells. Invest New Drugs 2021; 39:442-457. [PMID: 33411211 DOI: 10.1007/s10637-020-01050-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Accepted: 12/10/2020] [Indexed: 10/22/2022]
Abstract
Prostate cancers are reliant on androgens for growth and survival. Clinicians and researchers are looking for potent treatments for the resistant forms of prostate cancer; however, a handful of small molecules used in the treatment of castration-resistant prostate cancer have not shown potent effects owing to the mutations in the AR (Androgen Receptor). We used SBF-1, a well-characterized antitumor agent with potent cytotoxic effects against different kinds of cancers and investigated its effect on human prostate cancer. SBF-1 substantially inhibited the proliferation, induced apoptosis, and caused cell cycle arrest in LNCaP and PC3/AR+ prostate cancer cell lines. SBF-1 inhibited the activation of the IGF-1-PNCA pathway, as demonstrated by decreased expression of IGF-1 (insulin-like growth factor 1), proliferating cell nuclear antigen (PCNA), and its downstream Bcl-2 protein. Using microscale thermophoresis (MST) and isothermal titration calorimetry (ITC) assays, we observed a direct binding of SBF-1 to the AR. SBF-1 binds to the AR-DBD (DNA-binding domain) and blocks the transcription of its target gene. SBF-1 demonstrated a potent antitumor effect in vivo; it inhibited AR signaling and suppressed tumor growth in animals. Our study suggests that SBF-1 is an inhibitor of the AR and might be used in the treatment of prostate cancer.
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Sun L, Zhu D, Beverborg LOG, Wang R, Dang Y, Ma M, Li W, Yu B. Synthesis and Antiproliferative Activities of
OSW
‐1 Analogues Bearing 2”‐
O
‐
p
‐Acylaminobenzoyl
Residues
†. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000110] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lijun Sun
- Department of Chemistry, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
- State Key Laboratory of Bio‐organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Di Zhu
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University Shanghai 200032 China
| | - Laura Olde Groote Beverborg
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University Shanghai 200032 China
| | - Ruina Wang
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University Shanghai 200032 China
| | - Yongjun Dang
- Key Laboratory of Metabolism and Molecular Medicine, the Ministry of Education, Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fudan University Shanghai 200032 China
| | - Mingming Ma
- Department of Chemistry, University of Science and Technology of China 96 Jinzhai Road Hefei Anhui 230026 China
| | - Wei Li
- Department of Medicinal Chemistry, China Pharmaceutical University 639 Longmian Avenue Nanjing Jiangsu 211198 China
| | - Biao Yu
- State Key Laboratory of Bio‐organic and Natural Products Chemistry, Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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Chen W, Fang X, Gao Y, Shi K, Sun L, Yu B, Luo Q, Xu Q. SBF-1 inhibits contact hypersensitivity in mice through down-regulation of T-cell-mediated responses. BMC Pharmacol Toxicol 2019; 20:86. [PMID: 31864413 PMCID: PMC6925477 DOI: 10.1186/s40360-019-0377-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2019] [Accepted: 12/12/2019] [Indexed: 11/13/2022] Open
Abstract
Background T lymphocytes play an important role in contact hypersensitivity. This study aims to explore the immunosuppressive activity of SBF-1, an analog of saponin OSW-1, against T lymphocytes in vitro and in vivo. Methods Proliferation of T lymphocytes from lymph nodes of mice was determined by MTT assay. Flow cytometry analysis was performed to assess T cell activation and apoptosis. Levels of cytokines were determined by PCR and ELISA. BALB/c mice were sensitized and challenged with picryl chloride and thickness of left and right ears were measured. Results SBF-1 effectively inhibited T lymphocytes proliferation induced by concanavalin A (Con A) or anti-CD3 plus anti-CD28 at a very low dose (10 nM) but exhibited little toxicity in non-activated T lymphocytes at concentrations up to 10 μM. In addition, SBF-1 inhibited the expression of CD25 and CD69, as well as he phosphorylation of AKT in Con A-activated T cells. SBF-1 also induced apoptosis of activated T cells. In addition, SBF-1 also downregulated the induction of the T cell cytokines, IL-2 and IFN-γ in a dose-dependent manner. Furthermore, SBF-1 significantly suppressed ear swelling and inflammation in a mouse model of picryl chloride-induced contact hypersensitivity. Conclusions Our findings suggest that SBF-1 has an unique immunosuppressive activity both in vitro and in vivo mainly through inhibiting T cell proliferation and activation. Its mechanism appears to be related to the blockage of AKT signaling pathway.
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Affiliation(s)
- Wei Chen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Xianying Fang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Yuan Gao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Ke Shi
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China
| | - Lijun Sun
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Academy, Shanghai, 200032, China
| | - Biao Yu
- State Key Laboratory of Bioorganic and Natural Products Chemistry, Shanghai Institute of Organic Academy, Shanghai, 200032, China
| | - Qiong Luo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China.
| | - Qiang Xu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, 163 Xianlin Avenue, Nanjing, 210023, China.
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Lin JX, Xie XS, Weng XF, Qiu SL, Yoon C, Lian NZ, Xie JW, Wang JB, Lu J, Chen QY, Cao LL, Lin M, Tu RH, Yang YH, Huang CM, Zheng CH, Li P. UFM1 suppresses invasive activities of gastric cancer cells by attenuating the expres7sion of PDK1 through PI3K/AKT signaling. J Exp Clin Cancer Res 2019; 38:410. [PMID: 31533855 PMCID: PMC6751655 DOI: 10.1186/s13046-019-1416-4] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Accepted: 09/09/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND UFM1 has been found to be involved in the regulation of tumor development. This study aims to clarify the role and potential molecular mechanisms of UFM1 in the invasion and metastasis of gastric cancer. METHODS Expression of UFM1 in gastric tumor and paired adjacent noncancerous tissues from 437 patients was analyzed by Western blotting, immunohistochemistry, and realtime PCR. Its correlation with the clinicopathological characteristics and prognosis of gastric cancer patients was analyzed. The effects of UFM1 on the invasion and migration of gastric cancer cells were determined by the wound and trans-well assays, and the effect of UFM1 on subcutaneous tumor formation was verified in nude mice. The potential downstream targets of UFM1 and related molecular mechanisms were clarified by the human protein kinase assay and co-immunoprecipitation technique. RESULTS Compared with the corresponding adjacent tissues, the transcription level and protein expression level of UFM1 in gastric cancer tissues were significantly downregulated (P < 0.05). The 5-year survival rate of gastric cancer patients with low UFM1 expression was significantly lower than the patients with high UFM1 expression (42.1% vs 63.0%, P < 0.05). The invasion and migration abilities of gastric cancer cells with stable UFM1 overexpression were significantly decreased, and the gastric cancer cells with UFM1 stable knockdown showed the opposite results; similar results were also obtained in the nude mouse model. Further studies have revealed that UFM1 could increase the ubiquitination level of PDK1 and decrease the expression of PDK1 at protein level, thereby inhibiting the phosphorylation level of AKT at Ser473. Additionally, the effect of UFM1 on gastric cancer cell function is dependent on the expression of PDK1. The expression level of UFM1 can improve the poor prognosis of PDK1 in patients with gastric cancer. CONCLUSION UFM1 suppresses the invasion and metastasis of gastric cancer by increasing the ubiquitination of PDK1 through negatively regulating PI3K/AKT signaling.
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Affiliation(s)
- Jian-Xian Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian Province China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian Province China
| | - Xin-Sheng Xie
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian Province China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian Province China
| | - Xiong-Feng Weng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian Province China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian Province China
| | - Sheng-Liang Qiu
- Department of Pathology, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
| | - Changhwan Yoon
- Department of Surgery, Memorial Sloan Kettering Cancer Center, New York, NY USA
| | - Ning-Zi Lian
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian Province China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian Province China
| | - Jian-Wei Xie
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian Province China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian Province China
| | - Jia-Bin Wang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian Province China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian Province China
| | - Jun Lu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian Province China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian Province China
| | - Qi-Yue Chen
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian Province China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian Province China
| | - Long-Long Cao
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian Province China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian Province China
| | - Mi Lin
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian Province China
| | - Ru-Hong Tu
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian Province China
| | - Ying-Hong Yang
- Department of Pathology, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
| | - Chang-Ming Huang
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian Province China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian Province China
| | - Chao-Hui Zheng
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian Province China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian Province China
| | - Ping Li
- Department of Gastric Surgery, Fujian Medical University Union Hospital, Fuzhou, 350001 Fujian Province China
- Key Laboratory of Ministry of Education of Gastrointestinal Cancer, Fujian Medical University, Fuzhou, 350108 Fujian Province China
- Fujian Key Laboratory of Tumor Microbiology, Fujian Medical University, Fuzhou, 350108 Fujian Province China
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Couto GK, Segatto NV, Oliveira TL, Seixas FK, Schachtschneider KM, Collares T. The Melding of Drug Screening Platforms for Melanoma. Front Oncol 2019; 9:512. [PMID: 31293965 PMCID: PMC6601395 DOI: 10.3389/fonc.2019.00512] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 05/28/2019] [Indexed: 12/30/2022] Open
Abstract
The global incidence of cancer is rising rapidly and continues to be one of the leading causes of death in the world. Melanoma deserves special attention since it represents one of the fastest growing types of cancer, with advanced metastatic forms presenting high mortality rates due to the development of drug resistance. The aim of this review is to evaluate how the screening of drugs and compounds for melanoma has been performed over the last seven decades. Thus, we performed literature searches to identify melanoma drug screening methods commonly used by research groups during this timeframe. In vitro and in vivo tests are essential for the development of new drugs; however, incorporation of in silico analyses increases the possibility of finding more suitable candidates for subsequent tests. In silico techniques, such as molecular docking, represent an important and necessary first step in the screening process. However, these techniques have not been widely used by research groups to date. Our research has shown that the vast majority of research groups still perform in vitro and in vivo tests, with emphasis on the use of in vitro enzymatic tests on melanoma cell lines such as SKMEL and in vivo tests using the B16 mouse model. We believe that the union of these three approaches (in silico, in vitro, and in vivo) is essential for improving the discovery and development of new molecules with potential antimelanoma action. This workflow would provide greater confidence and safety for preclinical trials, which will translate to more successful clinical trials and improve the translatability of new melanoma treatments into clinical practice while minimizing the unnecessary use of laboratory animals under the principles of the 3R's.
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Affiliation(s)
- Gabriela Klein Couto
- Research Group in Molecular and Cellular Oncology, Postgraduate Program in Biochemistry and Bioprospecting, Cancer Biotechnology Laboratory, Center for Technological Development, Federal University of Pelotas, Pelotas, Brazil
| | - Natália Vieira Segatto
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Thaís Larré Oliveira
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Fabiana Kömmling Seixas
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
| | - Kyle M Schachtschneider
- Department of Radiology, University of Illinois at Chicago, Chicago, IL, United States.,Department of Biochemistry & Molecular Genetics, University of Illinois at Chicago, Chicago, IL, United States.,National Center for Supercomputing Applications, University of Illinois at Urbana-Champaign, Urbana, IL, United States
| | - Tiago Collares
- Biotechnology Graduate Program, Molecular and Cellular Oncology Research Group, Laboratory of Cancer Biotechnology, Technology Development Center, Federal University of Pelotas, Pelotas, Brazil
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8
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Liu W, Li P, Mei Y. Discovery of SBF1 as an allosteric inhibitor targeting the PIF-pocket of 3-phosphoinositide-dependent protein kinase-1. J Mol Model 2019; 25:187. [PMID: 31197600 DOI: 10.1007/s00894-019-4069-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Accepted: 05/22/2019] [Indexed: 01/09/2023]
Abstract
3-phosphoinositide-dependent protein kinase-1 (PDK1) plays a crucial role in the signal transduction of massive growth-related protein kinases. In this work, a computational study has been performed to investigate the binding pose of the hydrolyzed product of SBF1 (SBF1-) with PDK1. The binding pose was predicted by Vina and was further refined in a molecular dynamics simulation. For comparison, four published low molecular weight compounds (PS48, PS171, PS182, and PS210) binding with PDK1 were also studied. SBF1- was anchored in the PIF-pocket of PDK1 with salt bridge interaction using its carboxylate moiety, which is a common feature among the known ligands. Hydrogen bonds to THR148 and vdW interactions with GLN150 also have contributions to the association affinity. The allosteric regulation on PDK1 via the binding of SBF1- was further addressed. The binding affinity of SBF1- in complex with PDK1 is comparable to those of PS171 and PS182, with an estimated IC50 in a range from 2.0 to 10.0 μ molar. Comparison between the free energy profiles with the presence or absence of SBF1- in the binding pocket indicates that the binding of SBF1- enhances the hinge motion and suppresses the fluctuation of the end-to-end distance in α B of PDK1. These results demonstrate that SBF1- is a promising allosteric regulator of PDK1 targeting the PIF-binding pocket and can serve as a new scaffold template for the design of new drugs targeting PDK1.
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Affiliation(s)
- Wei Liu
- State Key Laboratory of Precision Spectroscopy, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, China
| | - Pengfei Li
- State Key Laboratory of Precision Spectroscopy, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, China
| | - Ye Mei
- State Key Laboratory of Precision Spectroscopy, School of Physics and Materials Science, East China Normal University, Shanghai, 200062, China. .,NYU-ECNU Center for Computational Chemistry at NYU Shanghai, Shanghai, 200062, China. .,Collaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi, 030006, China.
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9
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Sun L, Wang R, Wang X, Dang Y, Li W, Yu B. Synthesis and antiproliferative activities of OSW-1 analogues bearing 2-acylamino-xylose residues. Org Chem Front 2019. [DOI: 10.1039/c9qo00462a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We synthesized 38 OSW-1 analogues with 2-acylamino xylose residues and found that the antitumor activities could be greatly enhanced.
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Affiliation(s)
- Lijun Sun
- Department of Chemistry
- University of Science and Technology of China
- Hefei
- China
- State Key Laboratory of Bio-organic and Natural Products Chemistry
| | - Ruina Wang
- Key Laboratory of Metabolism and Molecular Medicine
- the Ministry of Education
- Department of Biochemistry and Molecular Biology
- School of Basic Medical Sciences
- Fudan University
| | - Xiaobo Wang
- Key Laboratory of Metabolism and Molecular Medicine
- the Ministry of Education
- Department of Biochemistry and Molecular Biology
- School of Basic Medical Sciences
- Fudan University
| | - Yongjun Dang
- Key Laboratory of Metabolism and Molecular Medicine
- the Ministry of Education
- Department of Biochemistry and Molecular Biology
- School of Basic Medical Sciences
- Fudan University
| | - Wei Li
- State Key Laboratory of Bio-organic and Natural Products Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
| | - Biao Yu
- State Key Laboratory of Bio-organic and Natural Products Chemistry
- Center for Excellence in Molecular Synthesis
- Shanghai Institute of Organic Chemistry
- Chinese Academy of Sciences
- Shanghai 200032
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10
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Advances in the antitumor activities and mechanisms of action of steroidal saponins. Chin J Nat Med 2018; 16:732-748. [PMID: 30322607 DOI: 10.1016/s1875-5364(18)30113-4] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Indexed: 01/14/2023]
Abstract
The steroidal saponins are one of the saponin types that exist in an unbound state and have various pharmacological activities, such as anticancer, anti-inflammatory, antiviral, antibacterial and nerves-calming properties. Cancer is a growing health problem worldwide. Significant progress has been made to understand the antitumor effects of steroidal saponins in recent years. According to reported findings, steroidal saponins exert various antitumor activities, such as inhibiting proliferation, inducing apoptosis and autophagy, and regulating the tumor microenvironment, through multiple related signaling pathways. This article focuses on the advances in domestic and foreign studies on the antitumor activity and mechanism of actions of steroidal saponins in the last five years to provide a scientific basis and research ideas for further development and clinical application of steroidal saponins.
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11
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Chen W, Qian X, Hu Y, Jin W, Shan Y, Fang X, Sun Y, Yu B, Luo Q, Xu Q. SBF-1 preferentially inhibits growth of highly malignant human liposarcoma cells. J Pharmacol Sci 2018; 138:271-278. [DOI: 10.1016/j.jphs.2018.10.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2018] [Revised: 10/12/2018] [Accepted: 10/17/2018] [Indexed: 02/06/2023] Open
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12
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Luo D, Xu X, Li J, Chen C, Chen W, Wang F, Xie Y, Li F. The PDK1/c‑Jun pathway activated by TGF‑β induces EMT and promotes proliferation and invasion in human glioblastoma. Int J Oncol 2018; 53:2067-2080. [PMID: 30106127 DOI: 10.3892/ijo.2018.4525] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 07/23/2018] [Indexed: 11/05/2022] Open
Abstract
Glioblastoma multiforme (GBM) is the most common primary malignant tumor affecting the human brain. Despite improvements in therapeutic technologies, patients with GBM have a poor clinical result and the molecular mechanisms responsible for the development of GBM have not yet been fully elucidated. 3-phosphoinositide dependent protein kinase 1 (PDK1) is upregulated in various tumors and promotes tumor invasion. In glioma, transforming growth factor-β (TGF‑β) promotes cell invasion; however, whether TGF‑β directly regulates PDK1 protein and promotes proliferation and invasion is not yet clear. In this study, PDK1 levels were measured in glioma tissues using tissue microarray (TMA) by immunohistochemistry (IHC) and RT‑qPCR. Kaplan-Meier analyses were used to calculate the survival rate of patients with glioma. In vitro, U251 and U87 glioma cell lines were used for functional analyses. Cell proliferation and invasion were analyzed using siRNA transfection, MTT assay, RT‑qPCR, western blot analysis, flow cytometry and invasion assay. In vivo, U251 glioma cell xenografts were established. The results revealed that PDK1 protein was significantly upregulated in glioma tissues compared with non-tumorous tissues. Furthermore, the higher PDK1 levels were associated with a large tumor size (>5.0 cm), a higher WHO grade and a shorter survival of patients with GBM. Univariate and multivariate analyses indicated that PDK1 was an independent prognostic factor. In vivo, PDK1 promoted glioma tumor xenograft growth. In vitro, functional analyses confirmed that TGF‑β upregulated PDK1 protein expression and PDK1 promoted cell migration and invasion, and functioned as an oncogene in GBM, by upregulating c‑Jun protein and inducing epithelial-mesenchymal transition (EMT). c‑Jun protein were overexpressed in glioma tissues and positively correlated with PDK1 levels. Moreover, our findings were further validated by the online Oncomine database. On the whole, the findings of this study indicate that in GBM, PDK1 functions as an oncogene, promoting proliferation and invasion.
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Affiliation(s)
- Dingyuan Luo
- Department of Vascular and Thyroid Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou, Guangdong 510120, P.R. China
| | - Xinke Xu
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong 510120, P.R. China
| | - Junliang Li
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong 510120, P.R. China
| | - Cheng Chen
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong 510120, P.R. China
| | - Wei Chen
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong 510120, P.R. China
| | - Fangyu Wang
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong 510120, P.R. China
| | - Yanping Xie
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong 510120, P.R. China
| | - Fangcheng Li
- Department of Neurosurgery, Guangzhou Women and Children's Medical Center, Guangzhou, Guangdong 510120, P.R. China
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Li GL, Xu HJ, Xu SH, Wang WW, Yu BY, Zhang J. Synthesis of tigogenin MeON-Neoglycosides and their antitumor activity. Fitoterapia 2017; 125:33-40. [PMID: 29269236 DOI: 10.1016/j.fitote.2017.12.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2017] [Revised: 12/10/2017] [Accepted: 12/15/2017] [Indexed: 01/10/2023]
Abstract
To discover new potent cytotoxic steroidal saponins, a series of tigogenin neoglycosides were synthesized via oxyamine neoglycosylation for the first time. The preliminary bioassays for their in vitro antitumor activities against five human cancer cell lines (A375, A-549, HCT-116, HepG2 and MCF-7) were conducted. The results revealed a sugar-dependent activity profile of their cytotoxicity, the glycoconjugation converted the non-active tigogenin to the most potential product Tg29 ((3R)-N-methoxyamino-tigogenin-β-2-deoxy-d-galactoside) with IC50 value of 2.7μM and 4.6μM against HepG2 and MCF-7 cells respectively. And the 3R-tigogenin neoglycosides exhibited enhanced antitumor activity while the 3S-tigogenin almost showed no activity. Among the five cell lines, HepG2 and MCF-7 cells showed more sensitive cytotoxic responses to the products. Therefore, the neoglycosylation could be a promising strategy for the synthesis of antitumor steroidal saponins and it also proved the essential role of carbohydrate moiety of steroidal saponins in the biological activity.
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Affiliation(s)
- Guo-Long Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | - Hong-Jiang Xu
- Institute for Pharmacology&Toxicology, Chia Tai Tianqing Pharmaceutical Group Co., Ltd, Nanjing 210023, China
| | - Shao-Hua Xu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China
| | - Wei-Wei Wang
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Bo-Yang Yu
- Jiangsu Key Laboratory of TCM Evaluation and Translational Research, China Pharmaceutical University, Nanjing, Jiangsu 211198, China
| | - Jian Zhang
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, Jiangsu 210009, China.
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Meng F, Zhang Y, Li X, Wang J, Wang Z. Clinical significance of miR-138 in patients with malignant melanoma through targeting of PDK1 in the PI3K/AKT autophagy signaling pathway. Oncol Rep 2017; 38:1655-1662. [DOI: 10.3892/or.2017.5838] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Accepted: 07/10/2017] [Indexed: 11/06/2022] Open
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Elgehama A, Chen W, Pang J, Mi S, Li J, Guo W, Wang X, Gao J, Yu B, Shen Y, Xu Q. Blockade of the interaction between Bcr-Abl and PTB1B by small molecule SBF-1 to overcome imatinib-resistance of chronic myeloid leukemia cells. Cancer Lett 2015; 372:82-8. [PMID: 26721204 DOI: 10.1016/j.canlet.2015.12.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2015] [Revised: 10/20/2015] [Accepted: 12/12/2015] [Indexed: 11/15/2022]
Abstract
In this study, a synthetic steroidal glycoside SBF-1 had strong and preferential antitumor effects on the human chronic myeloid leukemia (CML) cell line K562 and its imatinib-resistant form K562/G. SBF-1 induced apoptosis in both cell lines without any effect on cell cycle arrest. It also inhibited the activation of PI3K/Akt pathway members, such as PI3K and Akt, as well as downstream targets mTOR and Bcl-2. Moreover, the degradation of the Bcr-Abl protein was induced by SBF-1 in a concentration- and time-dependent manner. Using a pull-down assay, SBF-1 was found to bind to both Bcr-Abl and PTP1B and disrupted the interaction between them. SBF-1 triggered the degradation of Bcr-Abl through ubiquitination via the lysosome pathway. Taking together these findings, this study, for the first time, suggests that the blockade of the interaction between Bcr-Abl and PTP1B may be a feasible strategy for the treatment of CML, especially CML with resistance to Bcr-Abl kinase inhibitor imatinib. Our study also indicates that SBF-1 may serve as a leading compound for novel anti-CML therapeutic agents.
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MESH Headings
- Antineoplastic Combined Chemotherapy Protocols/pharmacology
- Apoptosis/drug effects
- Cholestenones/pharmacology
- Dose-Response Relationship, Drug
- Drug Resistance, Neoplasm
- Fusion Proteins, bcr-abl/antagonists & inhibitors
- Fusion Proteins, bcr-abl/metabolism
- Humans
- Imatinib Mesylate/pharmacology
- Inhibitory Concentration 50
- K562 Cells
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/enzymology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/pathology
- Lysosomes/drug effects
- Lysosomes/enzymology
- Protein Binding
- Protein Kinase Inhibitors/pharmacology
- Protein Tyrosine Phosphatase, Non-Receptor Type 1/antagonists & inhibitors
- Protein Tyrosine Phosphatase, Non-Receptor Type 1/metabolism
- Proteolysis
- Saponins/pharmacology
- Signal Transduction/drug effects
- Time Factors
- Ubiquitination
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Affiliation(s)
- Ahmed Elgehama
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Wei Chen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Juan Pang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Shanwei Mi
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Jiahuang Li
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Wenjie Guo
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Xingqi Wang
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Jian Gao
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China
| | - Biao Yu
- State Key Laboratory of Bio-organic and Natural Products Chemistry, Shanghai Institute of Organic Academy, Shanghai, China
| | - Yan Shen
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China.
| | - Qiang Xu
- State Key Laboratory of Pharmaceutical Biotechnology, School of Life Sciences, Nanjing University, Nanjing, China.
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Dobashi Y, Tsubochi H, Matsubara H, Inoue J, Inazawa J, Endo S, Ooi A. Diverse involvement of isoforms and gene aberrations of Akt in human lung carcinomas. Cancer Sci 2015; 106:772-781. [PMID: 25855050 PMCID: PMC4471790 DOI: 10.1111/cas.12669] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 03/30/2015] [Accepted: 04/02/2015] [Indexed: 01/14/2023] Open
Abstract
Emerging evidence confirms a central role of Akt in cancer. To evaluate the relative contribution of deregulated Akt and their clinicopathological significance in lung carcinomas, overexpression, activation of Akt and AKT gene increases were investigated. Immunohistochemical staining for 108 cases revealed overexpression of total Akt, Akt1, Akt2 and Akt3 in 61.1, 47.2, 40.7 and 23.1%, respectively, and phosphorylated Akt in 42.6% of cases. Expression of total Akt, Akt2 and Akt3 were frequently observed in small cell carcinoma, but phosphorylated Akt and Akt1 were more frequently observed in squamous cell carcinoma. FISH analysis to evaluate gene increases of AKT1-3 revealed amplification of AKT1 in 4.2% and AKT1 increase by polysomy of chromosome 14 in 27.3% of cases. For AKT2, amplification was observed in 3.2% and polysomy of chromosome 19 in 26.3% of cases. AKT3 increase was observed in 40.0% of cases only by polysomy of chromosome 1. Although “FISH-positive” AKT1 and AKT2 gene increases (amplification/high-level polysomy) were found exclusively in the cases overexpressing total Akt, Akt1 or Akt2, respectively, AKT3 increase was irrelevant of Akt3 expression. Statistically, expressions of Akt2, p-Akt and cytoplasmic-p-Akt were correlated with lymph node metastasis (P = 0.0479, P = 0.0371 and P = 0.0310, respectively). Although AKT1 and AKT2 gene increase showed positive correlation with, or trend towards a positive correlation with tumor size (P = 0.0430, P = 0.0590, respectively), AKT3 did not. In conclusion, Akt isoforms are differentially involved in the pathological phenotype of lung carcinoma in a diverse manner. Because abnormality of Akt1/AKT1 and Akt2/AKT2 correlated with clinicopathological profiles, Akt1/2-specific targeting may open a novel therapeutic window for the group showing Akt deregulation.
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Affiliation(s)
- Yoh Dobashi
- Department of Pathology, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Hiroyoshi Tsubochi
- Department of Thoracic Surgery, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Hirochika Matsubara
- Second Department of Surgery, Faculty of Medicine, University of Yamanashi, Yamanashi, Japan
| | - Jun Inoue
- Department of Molecular Cytogenetics, Medical Research Institute, Tokyo, Japan.,Bioresource Research Center, Tokyo Medical and Dental University, Tokyo, Japan
| | - Johji Inazawa
- Department of Molecular Cytogenetics, Medical Research Institute, Tokyo, Japan.,Bioresource Research Center, Tokyo Medical and Dental University, Tokyo, Japan
| | - Shunsuke Endo
- Department of Thoracic Surgery, Saitama Medical Center, Jichi Medical University, Saitama, Japan
| | - Akishi Ooi
- Department of Molecular and Cellular Pathology, Kanazawa University School of Medicine, Ishikawa, Japan
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SBF-1 exerts strong anticervical cancer effect through inducing endoplasmic reticulum stress-associated cell death via targeting sarco/endoplasmic reticulum Ca(2+)-ATPase 2. Cell Death Dis 2014; 5:e1581. [PMID: 25522275 PMCID: PMC4649847 DOI: 10.1038/cddis.2014.538] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 10/02/2014] [Accepted: 11/03/2014] [Indexed: 12/18/2022]
Abstract
Cervical cancer is one of the most common carcinomas in the genital system. In the present study, we report that SBF-1, a synthetic steroidal glycoside, has a strong antigrowth activity against human cervical cancer cells in vitro and in vivo. SBF-1 suppressed the growth, migration and colony formation of HeLa cells. In addition, severe endoplasmic reticulum (ER) stress was triggered by SBF-1, and 4-phenyl-butyric acid, a chemical chaperone, partially reversed SBF-1-induced cell death. To uncover the target protein of SBF-1, the compound was labeled with biotin. The biotin-labeled SBF-1 bound to sarco/ER Ca2+-ATPase 2 (SERCA2) and colocalized with SERCA2 in HeLa cells. Moreover, SBF-1 inhibited SERCA activity, depleted ER Ca2+ and increased cytosolic Ca2+ levels. 1,2-Bis(o-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid, a chelator of Ca2+, partially blocked SBF-1-induced ER stress and growth inhibition. Importantly, knockdown of SERCA2 increased the sensitivity of HeLa cells to SBF-1-induced ER stress and cell death, whereas overexpression of SERCA2 decreased this sensitivity. Furthermore, SBF-1 induced growth suppression and apoptosis in HeLa xenografts, which is closely related to the induction of ER stress and inhibition of SERCA activity. Finally, SERCA2 expression was elevated in human cervical cancer tissues (n=299) and lymph node metastasis (n=8), as compared with normal cervix tissues (n=23), with a positive correlation with clinical stages. In all, these results suggest that SBF-1 disrupts Ca2+ homeostasis and causes ER stress-associated cell death through directly binding to SERCA2 and inhibiting SERCA activity. Our findings also indicate that SERCA2 is a potential therapeutic target for human cervical cancer.
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Xiao-Ai-Ping, a TCM Injection, Enhances the Antigrowth Effects of Cisplatin on Lewis Lung Cancer Cells through Promoting the Infiltration and Function of CD8(+) T Lymphocytes. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2013; 2013:879512. [PMID: 23956781 PMCID: PMC3730189 DOI: 10.1155/2013/879512] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 06/17/2013] [Accepted: 06/28/2013] [Indexed: 12/20/2022]
Abstract
Objectives. To investigate how Xiao-Ai-Ping injection, a traditional Chinese medicine and an ancillary drug in tumor treatment, enhances the antitumor effects of cisplatin on Lewis lung cancer (LLC) cells. Methods. LLC-bearing mice were daily intraperitoneally injected with various doses of cisplatin, Xiao-Ai-Ping, or cisplatin plus Xiao-Ai-Ping, respectively. Body weight and tumor volumes were measured every three days. Results. Combination of Xiao-Ai-Ping and cisplatin yielded significantly better antigrowth and proapoptotic effects on LLC xenografts than sole drug treatment did. In addition, we found that Xiao-Ai-Ping triggered the infiltration of CD8+ T cells, a group of cytotoxic T cells, to LLC xenografts. Furthermore, the mRNA levels of interferon-γ (ifn-γ), perforin-1 (prf-1), and granzyme B (gzmb) in CD8+ T cells were significantly increased after combination treatment of Xiao-Ai-Ping and cisplatin. In vitro studies showed that Xiao-Ai-Ping markedly upregulated the mRNA levels of ifn-γ, prf-1, and gzmb in CD8+ T cells in a concentration-dependent manner, suggesting that Xiao-Ai-Ping augments the function of CD8+ T cells. Conclusions. Xiao-Ai-Ping promotes the infiltration and function of CD8+ T cells and thus enhances the antigrowth effects of cisplatin on LLC xenografts, which provides new evidence for the combination of Xiao-Ai-Ping and cisplatin in clinic in China.
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Rebuilding the balance of STAT1 and STAT3 signalings by fusaruside, a cerebroside compound, for the treatment of T-cell-mediated fulminant hepatitis in mice. Biochem Pharmacol 2012; 84:1164-73. [DOI: 10.1016/j.bcp.2012.08.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2012] [Revised: 07/27/2012] [Accepted: 08/09/2012] [Indexed: 01/13/2023]
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