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Yan K, Zhang W, Song H, Xu X. Sphingolipid metabolism and regulated cell death in malignant melanoma. Apoptosis 2024:10.1007/s10495-024-02002-y. [PMID: 39068623 DOI: 10.1007/s10495-024-02002-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/05/2024] [Indexed: 07/30/2024]
Abstract
Malignant melanoma (MM) is a highly invasive and therapeutically resistant skin malignancy, posing a significant clinical challenge in its treatment. Programmed cell death plays a crucial role in the occurrence and progression of MM. Sphingolipids (SP), as a class of bioactive lipids, may be associated with many kinds of diseases. SPs regulate various forms of programmed cell death in tumors, including apoptosis, necroptosis, ferroptosis, and more. This review will delve into the mechanisms by which different types of SPs modulate various forms of programmed cell death in MM, such as their regulation of cell membrane permeability and signaling pathways, and how they influence the survival and death fate of MM cells. An in-depth exploration of the role of SPs in programmed cell death in MM aids in unraveling the molecular mechanisms of melanoma development and holds significant importance in developing novel therapeutic strategies.
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Affiliation(s)
- Kexin Yan
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Peking Union Medical College, Nanjing, China
| | - Wei Zhang
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Peking Union Medical College, Nanjing, China
| | - Hao Song
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Peking Union Medical College, Nanjing, China.
| | - Xiulian Xu
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences, Peking Union Medical College, Nanjing, China.
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2
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Im JW, Lim JH, Stonik VA, Kwak JY, Jin S, Son M, Bae HR. Stichoposide C and Rhizochalin as Potential Aquaglyceroporin Modulators. Mar Drugs 2024; 22:335. [PMID: 39195451 DOI: 10.3390/md22080335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 07/22/2024] [Accepted: 07/23/2024] [Indexed: 08/29/2024] Open
Abstract
Aquaporins (AQPs) are a family of integral membrane proteins that selectively transport water and glycerol across the cell membrane. Because AQPs are involved in a wide range of physiological functions and pathophysiological conditions, AQP-based therapeutics may have the broad potential for clinical utility, including for disorders of water and energy balance. However, AQP modulators have not yet been developed as suitable candidates for clinical applications. In this study, to identify potential modulators of AQPs, we screened 31 natural products by measuring the water and glycerol permeability of mouse erythrocyte membranes using a stopped-flow light scattering method. None of the tested natural compounds substantially affected the osmotic water permeability. However, several compounds considerably affected the glycerol permeability. Stichoposide C increased the glycerol permeability of mouse erythrocyte membranes, whereas rhizochalin decreased it at nanomolar concentrations. Immunohistochemistry revealed that AQP7 was the main aquaglyceroporin in mouse erythrocyte membranes. We further verified the effects of stichoposide C and rhizochalin on aquaglyceroporins using human AQP3-expressing keratinocyte cells. Stichoposide C, but not stichoposide D, increased AQP3-mediated transepithelial glycerol transport, whereas the peracetyl aglycon of rhizochalin was the most potent inhibitor of glycerol transport among the tested rhizochalin derivatives. Collectively, stichoposide C and the peracetyl aglycon of rhizochalin might function as modulators of AQP3 and AQP7, and suggests the possibility of these natural products as potential drug candidates for aquaglyceroporin modulators.
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Affiliation(s)
- Ji Woo Im
- Department of Physiology, Dong-A University College of Medicine, Busan 49201, Republic of Korea
| | - Ju Hyun Lim
- Department of Physiology, Dong-A University College of Medicine, Busan 49201, Republic of Korea
| | - Valentin A Stonik
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Science, 690022 Vladivostok, Russia
| | - Jong-Young Kwak
- Department of Pharmacology, School of Medicine, Ajou University, Suwon 16499, Republic of Korea
| | - Songwan Jin
- Department of Mechanical Engineering, Tech University of Korea, Siheung-si 15073, Gyeonggi-do, Republic of Korea
| | - Minkook Son
- Department of Physiology, Dong-A University College of Medicine, Busan 49201, Republic of Korea
| | - Hae-Rahn Bae
- Department of Physiology, Dong-A University College of Medicine, Busan 49201, Republic of Korea
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Mirra S, Marfany G. From Beach to the Bedside: Harnessing Mitochondrial Function in Human Diseases Using New Marine-Derived Strategies. Int J Mol Sci 2024; 25:834. [PMID: 38255908 PMCID: PMC10815353 DOI: 10.3390/ijms25020834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/04/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024] Open
Abstract
Mitochondria are double-membrane organelles within eukaryotic cells that act as cellular power houses owing to their ability to efficiently generate the ATP required to sustain normal cell function. Also, they represent a "hub" for the regulation of a plethora of processes, including cellular homeostasis, metabolism, the defense against oxidative stress, and cell death. Mitochondrial dysfunctions are associated with a wide range of human diseases with complex pathologies, including metabolic diseases, neurodegenerative disorders, and cancer. Therefore, regulating dysfunctional mitochondria represents a pivotal therapeutic opportunity in biomedicine. Marine ecosystems are biologically very diversified and harbor a broad range of organisms, providing both novel bioactive substances and molecules with meaningful biomedical and pharmacological applications. Recently, many mitochondria-targeting marine-derived molecules have been described to regulate mitochondrial biology, thus exerting therapeutic effects by inhibiting mitochondrial abnormalities, both in vitro and in vivo, through different mechanisms of action. Here, we review different strategies that are derived from marine organisms which modulate specific mitochondrial processes or mitochondrial molecular pathways and ultimately aim to find key molecules to treat a wide range of human diseases characterized by impaired mitochondrial function.
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Affiliation(s)
- Serena Mirra
- Stazione Zoologica Anton Dohrn, Department of Biology and Evolution of Marine Organisms, Villa Comunale, 80121 Naples, Italy;
| | - Gemma Marfany
- Departament of Genetics, Microbiology and Statistics, Universitat de Barcelona, Avda. Diagonal 643, 08028 Barcelona, Spain
- Centro de Investigación Biomédica en Red Enfermedades Raras (CIBERER), Instituto de Salud Carlos III (ISCIII), Universitat de Barcelona, 08028 Barcelona, Spain
- Institute of Biomedicine (IBUB, IBUB-IRSJD), Universitat de Barcelona, 08028 Barcelona, Spain
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Li Q, Li J, Wang K, Liao L, Li Y, Liang H, Huang C, Gan J, Dong X, Hu Y, Cheng J, Ji H, Liu C, Zeng M, Yu S, Wang B, Qian J, Tang Z, Peng Y, Tang S, Li M, Zhou J, Yan J, Li C. Activation of Sphingomyelin Phosphodiesterase 3 in Liver Regeneration Impedes the Progression of Colorectal Cancer Liver Metastasis Via Exosome-Bound Intercellular Transfer of Ceramides. Cell Mol Gastroenterol Hepatol 2023; 16:385-410. [PMID: 37245564 PMCID: PMC10372907 DOI: 10.1016/j.jcmgh.2023.05.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 05/19/2023] [Accepted: 05/22/2023] [Indexed: 05/30/2023]
Abstract
BACKGROUND & AIMS The machinery that prevents colorectal cancer liver metastasis (CRLM) in the context of liver regeneration (LR) remains elusive. Ceramide (CER) is a potent anti-cancer lipid involved in intercellular interaction. Here, we investigated the role of CER metabolism in mediating the interaction between hepatocytes and metastatic colorectal cancer (CRC) cells to regulate CRLM in the context of LR. METHODS Mice were intrasplenically injected with CRC cells. LR was induced by 2/3 partial hepatectomy (PH) to mimic the CRLM in the context of LR. The alteration of corresponding CER-metabolizing genes was examined. The biological roles of CER metabolism in vitro and in vivo were examined by performing a series of functional experiments. RESULTS Induction of LR augmented apoptosis but promoted matrix metalloproteinase 2 (MMP2) expression and epithelial-mesenchymal transition (EMT) to increase the invasiveness of metastatic CRC cells, resulting in aggressive CRLM. Up-regulation of sphingomyelin phosphodiesterase 3 (SMPD3) was determined in the regenerating hepatocytes after LR induction and persisted in the CRLM-adjacent hepatocytes after CRLM formation. Hepatic Smpd3 knockdown was found to further promote CRLM in the context of LR by abolishing mitochondrial apoptosis and augmenting the invasiveness in metastatic CRC cells by up-regulating MMP2 and EMT through promoting the nuclear translocation of β-catenin. Mechanistically, we found that hepatic SMPD3 controlled the generation of exosomal CER in the regenerating hepatocytes and the CRLM-adjacent hepatocytes. The SMPD3-produced exosomal CER critically conducted the intercellular transfer of CER from the hepatocytes to metastatic CRC cells and impeded CRLM by inducing mitochondrial apoptosis and restricting the invasiveness in metastatic CRC cells. The administration of nanoliposomal CER was found to suppress CRLM in the context of LR substantially. CONCLUSIONS SMPD3-produced exosomal CER constitutes a critical anti-CRLM mechanism in LR to impede CRLM, offering the promise of using CER as a therapeutic agent to prevent the recurrence of CRLM after PH.
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Affiliation(s)
- Qingping Li
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Jieyuan Li
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Kai Wang
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Leyi Liao
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Yiyi Li
- Department of Radiation Oncology, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Hanbiao Liang
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Can Huang
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Jian Gan
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Xiaoyu Dong
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Yaowen Hu
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Jiaxin Cheng
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Hongli Ji
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Cuiting Liu
- Central Laboratory, Southern Medical University, Guangzhou, Guangdong, China
| | - Minghui Zeng
- Institute of Scientific Research, Southern Medical University, Guangzhou, Guangdong, China
| | - Sheng Yu
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Biao Wang
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Jianping Qian
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Zhongshun Tang
- The First Clinical College, Southern Medical University, Guangzhou, Guangdong, China
| | - Yonghong Peng
- Central Laboratory, Southern Medical University, Guangzhou, Guangdong, China
| | - Shanhua Tang
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China
| | - Mengxuan Li
- The First Clinical College, Southern Medical University, Guangzhou, Guangdong, China
| | - Jie Zhou
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China.
| | - Jun Yan
- Department of General Surgery, Guangdong Provincial Key Laboratory of Precision Medicine for Gastrointestinal Tumor, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China.
| | - Chuanjiang Li
- Division of Hepatobiliopancreatic Surgery, Department of General Surgery, Nanfang Hospital, The First School of Clinical Medicine, Southern Medical University, Guangzhou, Guangdong, China.
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Mazlan NB, Abd Rahman NNB, Shukhairi SSB, Nazahuddin MNAB. Sea Cucumbers: Source of Nutritional, Medicinal, and Cosmeceutical Products. MARINE BIOTECHNOLOGY: APPLICATIONS IN FOOD, DRUGS AND ENERGY 2023:171-188. [DOI: 10.1007/978-981-99-0624-6_8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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Marine-Derived Stichloroside C2 Inhibits Epithelial–Mesenchymal Transition and Induces Apoptosis through the Mitogen-Activated Protein Kinase Signalling Pathway in Triple-Negative Breast Cancer Cells. JOURNAL OF ONCOLOGY 2022; 2022:6449984. [PMID: 35607324 PMCID: PMC9124082 DOI: 10.1155/2022/6449984] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 04/27/2022] [Indexed: 12/13/2022]
Abstract
Background Triterpenoid saponins from sea cucumbers exhibit significant antitumour, antifungal, and antibacterial activities. However, the associated molecular mechanisms have yet to be elucidated. In this study, we screened and explored the antitumour activity and underlying mechanisms of triterpenoid saponins isolated from Thelenota ananas. Methods We isolated and purified sea cucumber saponins, determined their chemical structures, and confirmed their function in vitro. We also screened and explored the antitumour activity and underlying mechanisms of triterpenoid saponins isolated from Thelenota ananas. Results Four saponins were discovered from sea cucumber Thelenota ananas collected from the South China Sea. We found that stichloroside C2 (STC2) inhibited the proliferation and clonogenesis of the human triple-negative breast cancer (TNBC) cell line MDA-MB-231 and mouse TNBC cell line 4 T1 in a dose-dependent manner and induced apoptosis and cycle arrest in these two TNBC cell lines. STC2 induced DNA damage in two TNBC cell lines and significantly increased the protein expression level of the DNA double-strand break marker γ-H2AX. STC2 downregulated the protein expression levels of phosphorylated cyclin-dependent kinase 1 (CDK1), cyclin B1, CDK2, and cyclin A2 in MDA-MB-231 and 4 T1 cells. STC2 upregulated Bax and cleaved PARP protein expression in two types of breast cancer cells. In addition, STC2 promoted E-cadherin expression; inhibited vimentin expression; upregulated the phosphorylation levels of the mitogen-activated protein kinase (MAPK) signalling pathway-related proteins p38, JNK, and ERK1/2; and downregulated Akt phosphorylation. Conclusions STC2 exerts anti-TNBC activity, inhibits epithelial–mesenchymal transition (EMT), and induces apoptosis by regulating the cell cycle, EMT-related proteins, and MAPK signalling pathway.
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Cancer Cell Inhibiting Sea Cucumber (Holothuria leucospilota) Protein as a Novel Anti-Cancer Drug. Nutrients 2022; 14:nu14040786. [PMID: 35215436 PMCID: PMC8879703 DOI: 10.3390/nu14040786] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2021] [Revised: 01/31/2022] [Accepted: 02/07/2022] [Indexed: 12/30/2022] Open
Abstract
Cancer remains the primary cause of death worldwide. To develop less toxic anti-cancer drugs to relieve the suffering and improve the survival of cancer patients is the major focus in the anti-cancer field. To this end, marine creatures are being extensively studied for their anti-cancer effects, since extracts from at least 10% of the marine organisms have been shown to possess anti-tumor activities. As a classic Chinese traditional medicine, sea cucumbers and compounds extracted from the sea cucumbers, such as polysaccharides and saponins, have recently been shown to exhibit anti-cancer, anti-inflammatory, and anti-oxidant effects. Holothuria leucospilota (H. leucospilota) is a tropical edible sea cucumber species that has been successfully cultivated and farmed in large scales, providing a readily available source of raw materials to support the development of novel marine anti-cancer drugs. However, very few studies have so far been performed on the biological activities of H. leucospilota. In this study, we first investigated the anti-cancer effect of H. leucospilota protein on three cancer cell lines (i.e., HepG2, A549, Panc02) and three normal cell lines (NIH-3T3, HaCaT, 16HBE). Our data showed that H. leucospilota protein decreased the cell viabilities of HepG2, A549, HaCaT, 16HBE in a concentration-dependent manner, while Panc02 and NIH-3T3 in a time- and concentration-dependent manner. We also found that the inhibitory effect of H. leucospilota protein (≥10 μg/mL) on cell viability is near or even superior to EPI, a clinical chemotherapeutic agent. In addition, our data also demonstrated that H. leucospilota protein significantly affected the cell cycle and induced apoptosis in the three cancer cell lines investigated; in comparison, it showed no effects on the normal cell lines (i.e., NIH-3T3, HaCaT and 16HBE). Finally, our results also showed that H. leucospilota protein exhibited the excellent performance in inhibiting cell immigrations. In conclusion, H. leucospilota protein targeted the cancer cell cycles and induced cancer cell apoptosis; its superiority to inhibit cancer cell migration compared with EPI, shows the potential as a promising anti-cancer drug.
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Liu F, Tang L, Tao M, Cui C, He D, Li L, Liao Y, Gao Y, He J, Sun F, Lin H, Li H. Stichoposide C Exerts Anticancer Effects on Ovarian Cancer by Inducing Autophagy via Inhibiting AKT/mTOR Pathway. Onco Targets Ther 2022; 15:87-101. [PMID: 35087279 PMCID: PMC8789324 DOI: 10.2147/ott.s340556] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 12/20/2021] [Indexed: 11/23/2022] Open
Abstract
PURPOSE Stichoposide C (STC) is a triterpene glycoside isolated from Thelenota ananas, which is previously demonstrated to wide spectrum of anticancer effects against various tumor cells. However, the antitumor effects and underlying molecular mechanisms in ovarian cancer (OC) cells are not fully understood. Here, we examined if and through which mechanisms STC exerts anticancer effects on OC. METHODS CCK-8 and colony formation assays were used to detect cell viability and proliferation. Flow cytometry was used to detect apoptosis and cell cycle arrest. Protein expression and phosphorylation were measured by Western blotting analysis. Confocal fluorescence microscopy was used to observe the autophagy flux. Autophagosome formation was observed via transmission electron microscopy. Antitumor effect of STC was investigated in patient-derived organoids (PDOs) and A2780 subcutaneous xenograft tumors. RESULTS STC was found that not only exerted antiproliferation activity and apoptosis but also induced autophagy. Mechanistically, STC induced autophagy via inhibited the AKT/mTOR signaling pathway in ovarian cancer cells. In addition, STC and an autophagy inhibitor 3-methyladenine (3-MA) combination treatment showed significant synergetic effects on inhibiting proliferation and promoting apoptosis in vitro. Consistent with cell experiments, STC also inhibited the growth of two OC PDOs. Finally, STC markedly reduced the growth of A2780 subcutaneous xenograft tumors without organ toxicity and activated autophagy in vivo. CONCLUSION Stichoposide C exerts in vitro and in vivo anticancer effects on ovarian cancer by inducing autophagy via inhibiting AKT/mTOR pathway. The findings warrant further prove for STC as a potential therapeutic agent for ovarian cancer.
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Affiliation(s)
- Fangfang Liu
- Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Lumin Tang
- Traditional Chinese Medicine Department, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, People’s Republic of China
| | - Mengyu Tao
- Department of Gynecology and Obstetrics, Shanghai Key Laboratory of Gynecology Oncology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, People's Republic of China
| | - Chuang Cui
- Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
| | - Di He
- Traditional Chinese Medicine Department, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, People’s Republic of China
| | - Longxia Li
- Traditional Chinese Medicine Department, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, People’s Republic of China
| | - Yahui Liao
- Shanghai Ocean University, Shanghai, People’s Republic of China
| | - Yamin Gao
- Shenyang Pharmaceutical University, Benxi, People’s Republic of China
| | - Jing He
- Shenyang Pharmaceutical University, Benxi, People’s Republic of China
| | - Fan Sun
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, RenJi Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, People’s Republic of China
| | - Houwen Lin
- Research Center for Marine Drugs, State Key Laboratory of Oncogenes and Related Genes, Department of Pharmacy, RenJi Hospital, School of Medicine, Shanghai JiaoTong University, Shanghai, People’s Republic of China
| | - He Li
- Shanghai University of Traditional Chinese Medicine, Shanghai, People’s Republic of China
- Traditional Chinese Medicine Department, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, People’s Republic of China
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Zhou Y, Farooqi AA, Xu B. Comprehensive review on signaling pathways of dietary saponins in cancer cells suppression. Crit Rev Food Sci Nutr 2021:1-26. [PMID: 34751072 DOI: 10.1080/10408398.2021.2000933] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Nutrigenomics utilizes high-throughput genomic technologies to reveal changes in gene and protein levels. Excitingly, ever-growing body of scientific findings has provided sufficient evidence about the interplay between diet and genes. Cutting-edge research and advancements in genomics, epigenetics and metabolomics have deepened our understanding on the role of dietary factors in the inhibition of carcinogenesis and metastasis. Dietary saponins, a type of triterpene glycosides, are generally found in Platycodon grandifloras, Dioscorea oppositifolia, asparagus, legumes, and sea cucumber. Wealth of information has started to shed light on pleiotropic mechanistic roles of dietary saponins in cancer prevention and inhibition. In this review, we have attempted to summarize the in vitro research of dietary saponins in the last two decades by searching common databases such as Google Scholar, PubMed, Scopus, and Web of Science. The results showed that dietary saponins exerted anti-cancer activities via regulation of apoptosis, autophagy, arrest cell cycle, anti-proliferation, anti-metastasis, and anti-angiogenesis, by regulation of several critical signaling pathways, including MAPK, PI3K/Akt/mTOR, NF-κB, and VEGF/VEGFR. However, there is no data about the dosage of dietary saponins for practical anti-cancer effects in human bodies. Extensive clinical studies are needed to confirm the effectiveness of dietary saponins for further commercial and medical applications.
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Affiliation(s)
- Yifan Zhou
- Food Science and Technology Program, BNU-HKBU United International College, Zhuhai, Guangdong, China.,Department of Food Science and Technology, National University of Singapore, Singapore, Singapore
| | | | - Baojun Xu
- Food Science and Technology Program, BNU-HKBU United International College, Zhuhai, Guangdong, China
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Saide A, Damiano S, Ciarcia R, Lauritano C. Promising Activities of Marine Natural Products against Hematopoietic Malignancies. Biomedicines 2021; 9:645. [PMID: 34198841 PMCID: PMC8228764 DOI: 10.3390/biomedicines9060645] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 05/31/2021] [Accepted: 06/01/2021] [Indexed: 02/06/2023] Open
Abstract
According to the WHO classification of tumors, more than 150 typologies of hematopoietic and lymphoid tumors exist, and most of them remain incurable diseases that require innovative approaches to improve therapeutic outcome and avoid side effects. Marine organisms represent a reservoir of novel bioactive metabolites, but they are still less studied compared to their terrestrial counterparts. This review is focused on marine natural products with anticancer activity against hematological tumors, highlighting recent advances and possible perspectives. Until now, there are five commercially available marine-derived compounds for the treatment of various hematopoietic cancers (e.g., leukemia and lymphoma), two molecules in clinical trials, and series of compounds and/or extracts from marine micro- and macroorganisms which have shown promising properties. In addition, the mechanisms of action of several active compounds and extracts are still unknown and require further study. The continuous upgrading of omics technologies has also allowed identifying enzymes with possible bioactivity (e.g., l-asparaginase is currently used for the treatment of leukemia) or the enzymes involved in the synthesis of bioactive secondary metabolites which can be the target of heterologous expression and genetic engineering.
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Affiliation(s)
- Assunta Saide
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy;
| | - Sara Damiano
- Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”, 80137 Naples, Italy;
| | - Roberto Ciarcia
- Department of Veterinary Medicine and Animal Productions, University of Naples “Federico II”, 80137 Naples, Italy;
| | - Chiara Lauritano
- Marine Biotechnology Department, Stazione Zoologica Anton Dohrn, Villa Comunale, 80121 Napoli, Italy;
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Abstract
Sphingosine, ceramide, sphingosine-1-phosphate, and other related sphingolipids have emerged as important bioactive molecules involved in a variety of key cellular processes such as cell growth, differentiation, apoptosis, exosome release, and inter- and intracellular cell communication, making the pathways of sphingolipid metabolism a key domain in maintaining cell homeostasis (Hannun and Obeid, Trends Biochem Sci 20:73-77, 1995; Hannun and Obeid, Nat Rev Mol Cell Biol 9:139-150, 2008; Kosaka et al., J Biol Chem 288:10849-10859, 2013). Various studies have determined that these pathways play a central role in regulating intracellular production of ceramide and the other bioactive sphingolipids and hence are an important component of signaling in various diseases such as cancer, diabetes, and neurodegenerative and cardiovascular diseases (Chaube et al., Biochim Biophys Acta 1821:313-323, 2012; Clarke et al., Adv Enzyme Regul 51:51-58, 2011b; Horres and Hannun, Neurochem Res 37:1137-1149, 2012). In this chapter, we discuss one of the major enzyme classes in producing ceramide, sphingomyelinases (SMases), from a biochemical and structural perspective with an emphasis on their applicability as therapeutic targets.
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Affiliation(s)
- Prajna Shanbhogue
- Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, USA
| | - Yusuf A Hannun
- Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, USA.
- Stony Brook University Cancer Center, Stony Brook, NY, USA.
- Department of Medicine, Stony Brook University, Stony Brook, NY, USA.
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Structures and Bioactivities of Psolusosides B 1, B 2, J, K, L, M, N, O, P, and Q from the Sea Cucumber Psolus fabricii. The First Finding of Tetrasulfated Marine Low Molecular Weight Metabolites. Mar Drugs 2019; 17:md17110631. [PMID: 31698820 PMCID: PMC6891663 DOI: 10.3390/md17110631] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 10/31/2019] [Accepted: 11/04/2019] [Indexed: 11/17/2022] Open
Abstract
Ten new di-, tri- and tetrasulfated triterpene glycosides, psolusosides B1 (1), B2 (2), J (3), K (4), L (5), M (6), N (7), O (8), P (9), and Q (10), were isolated from the sea cucumber Psolus fabricii collected in the Sea of Okhotsk near the Kurile Islands. Structures of these glycosides were established by two-dimensional (2D) NMR spectroscopy and HR-ESI mass-spectrometry. It is particularly interesting that highly polar compounds 9 and 10 contain four sulfate groups in their carbohydrate moieties, including two sulfates in the same terminal glucose residue. Glycoside 2 has an unusual non-holostane aglycone with 18(16)-lactone and a unique 7,8-epoxy fragment. Cytotoxic activities of compounds 1-10 against several mouse cell lines such as Ehrlich ascites carcinoma cells, neuroblastoma Neuro 2A, normal epithelial JB-6 cells, and erythrocytes were quite different depending both on structural peculiarities of these glycosides and the type of cells subjected to their actions. Psolusoside L (5), pentaoside, with three sulfate groups at C-6 of two glucose and one 3-O-methylglucose residue and holostane aglycone, is the most active compound in the series. The presence of a sulfate group at C-2 of the terminal glucose residue attached to C-4 of the first (xylose) residue significantly decreases activities of the corresponding glycosides. Psolusosides of group B (1, 2, and known psolusoside B) are inactive in all tests due to the presence of non-holostane aglycones and tetrasaccharide-branched sugar chains sulfated by C-2 of Glc4.
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Huang XM, Yang ZJ, Xie Q, Zhang ZK, Zhang H, Ma JY. Natural products for treating colorectal cancer: A mechanistic review. Biomed Pharmacother 2019; 117:109142. [DOI: 10.1016/j.biopha.2019.109142] [Citation(s) in RCA: 70] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 06/14/2019] [Accepted: 06/14/2019] [Indexed: 12/17/2022] Open
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Yuan L, Huang X, Zhou K, Zhu X, Huang B, Qiu S, Cao K, Xu L. Sea cucumber extract TBL-12 inhibits the proliferation, migration, and invasion of human prostate cancer cells through the p38 mitogen-activated protein kinase and intrinsic caspase apoptosis pathway. Prostate 2019; 79:826-839. [PMID: 30889629 DOI: 10.1002/pros.23788] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 02/19/2019] [Indexed: 01/17/2023]
Abstract
BACKGROUND Sea cucumber is a kind of nutritious echinoderm that has multiple biological activities, including antioxidant, antibacterial, and antitumor activities. However, there is no extensive study on the antitumor effect of sea cucumber extract on prostate cancer (PCa). TBL-12 is a new sea cucumber extract. In this study, we investigated the in vivo anti-PCa effect of TBL-12 and its in vitro effects on the proliferation, apoptosis, migration, and invasion of the human PCa cell lines LNCaP, 22RV1, PC-3, and DU145, and evaluated its possible mechanisms. METHODS Cell proliferation was analyzed by cell counting kit-8 and colony formation assays. Scratch migration assay and transwell invasiveness assay were used to observe TBL-12 effect on the migration and invasion of PCa cells. Matrix metalloproteinase 2 (MMP-2) and MMP-9 expression and enzymatic activity was determined by Western blot analysis, quantitative reverse-transcription polymerase chain reaction, and gelatin zymography. Apoptosis level was detected by flow cytometry analysis. Western blot analysis was used to analyze p38 mitogen-activated protein kinase (MAPK) and apoptosis pathways. Angiogenic array analysis was used to explore autocrine and paracrine growth factors in PCa cell lines. Xenograft tumor model was built to observe the in vivo anticancer effect. RESULTS TBL-12 could significantly inhibit tumor growth in xenograft PCa mice in vivo, and dramatically inhibit the proliferation, colony formation, migration, and invasiveness of PCa cells in vitro (P < 0.05 and P < 0.001). The expression and enzyme activity of MMP-2 and MMP-9 were significantly suppressed by TBL-12 ( P < 0.01), and decreased phosphorylation level of p38 in PCa cells was detected ( P < 0.001). Furthermore, TBL-12 could reinforce the MMP-2/MMP-9 inhibitory effect of SB203580, a specific inhibitor of the p38 MAPK pathway ( P < 0.05). Besides, TBL-12 could induce the apoptosis of PCa cells by activating caspase-9, caspase-7, and poly(ADP-ribose) polymerase and suppressing survivin, and inhibit the secretion of angiogenin, angiopoietin-2, and vascular endothelial growth factor in PCa cells. CONCLUSIONS Sea cucumber extract TBL-12 could suppress the proliferation and metastasis of human PCa cells by inhibiting MMP-2 and MMP-9 via blocking the p38 MAPK pathway, inducing apoptosis through intrinsic caspase apoptosis pathway and inhibiting the secretion of angiogenic factors. Our findings may be of importance and significance for the research and clinical applications of sea cucumber extract in PCa treatment.
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Affiliation(s)
- Lei Yuan
- Research Center for Clinical Laboratory Standard, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Xubin Huang
- Department of Pulmonary and Critical Care Medicine, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Kai Zhou
- Research Center for Clinical Laboratory Standard, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Xun Zhu
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Bin Huang
- Department of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Shaopeng Qiu
- Department of Urology, The First Affiliated Hospital, Sun Yat-Sen University, Guangzhou, China
| | - Kaiyuan Cao
- Research Center for Clinical Laboratory Standard, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Lin Xu
- Research Center for Clinical Laboratory Standard, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
- Key Laboratory of Tropical Disease Control, Ministry of Education, Sun Yat-Sen University, Guangzhou, China
- Department of Microbiology, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
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Cytotoxic Desulfated Saponin from Holothuria atra Predicted to Have High Binding Affinity to the Oncogenic Kinase PAK1: A Combined In Vitro and In Silico Study. Sci Pharm 2018; 86:scipharm86030032. [DOI: 10.3390/scipharm86030032] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 08/23/2018] [Accepted: 08/23/2018] [Indexed: 11/16/2022] Open
Abstract
Sea cucumbers have long been utilized in foods and Asiatic folk medicines for their nutritive and health benefits. Herein, three sea cucumber species were investigated and Holothuria atra showed the highest cytotoxicity among these. Next, a desulfated saponin, desulfated echinoside B (DEB), was purified from H. atra through bioassay-guided fractionation. LC-ESI-MS (Liquid chromatography-electrospray ionization mass spectrometry) analysis also showed H. atra to be a rich source of saponins. DEB showed cytotoxicity on cancer cells with IC50 values of 0.5–2.5 µM, and on brine shrimps with an IC50 value of 9.2 µM. In molecular docking studies, DEB was found to bind strongly with the catalytic domain of PAK1 (p21-activated kinase 1) and it showed binding energy of −8.2 kcal/mol compared to binding energy of −7.7 kcal/mol for frondoside A (FRA). Both of them bind to the novel allosteric site close to the ATP-binding cleft. Molecular dynamics (MD) simulation demonstrated that DEB can form a more stable complex with PAK1, remaining inside the allosteric binding pocket and forming the maximum number of hydrogen bonds with the surrounding residues. Moreover, important ligand binding residues were found to be less fluctuating in the DEB-PAK1 complex than in the FRA-PAK1 complex throughout MD simulation. Our experimental and computational studies showed that both DEB and FRA can act as natural allosteric PAK1 inhibitors and DEB appeared to be more promising than FRA.
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Wargasetia TL, Permana S, Widodo N. Potential use of compounds from sea cucumbers as MDM2 and CXCR4 inhibitors to control cancer cell growth. Exp Ther Med 2018; 16:2985-2991. [PMID: 30250516 PMCID: PMC6144067 DOI: 10.3892/etm.2018.6588] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 05/11/2018] [Indexed: 11/06/2022] Open
Abstract
Ineffectiveness of cancer therapy may originate in the incompatibility of the treatment with various mutations in the cancer cells. Finding novel anticancer treatments that work efficiently for varying types of cancer cells remains challenging. Previous studies have identified that compounds in sea cucumbers are capable of inhibiting the growth of cancer cells and inducing apoptosis. However, information on the underlying mechanisms controlling cancer cell growth at a molecular level remains limited. The current study analyzed the potential of colochiroside A, ds-echinoside A, philinopside E, sphingosine and stichoposide C as inhibitors for anticancer target proteins, including mouse double minute 2 homolog (MDM2) and C-X-C chemokine receptor type 4 (CXCR4). Inhibition of MDM2 triggers apoptosis through regulation of tumor protein 53 and CXCR4 inhibition may prevent cancer cell proliferation and growth by affecting the Janus kinase 2/3 signal transducer and activator of transcription signaling pathway and protein tyrosine kinase 2. The results of a binding affinity analysis using molecular docking revealed that philinopside E and ds-echinoside A may inhibit MDM2 and CXCR4. The data suggested that these active compounds may be promising inhibitors of cell growth by binding to two targets simultaneously. Furthermore, stichoposide C and colochiroside A were predicted to inhibit CXCR4. Additional research is needed to validate the in vitro activity of the aforementioned compounds.
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Affiliation(s)
| | - Sofy Permana
- Biology Department, Faculty of Mathematics and Natural Sciences, The University of Brawijaya, Malang, East Java 65145, Indonesia
| | - Nashi Widodo
- Biology Department, Faculty of Mathematics and Natural Sciences, The University of Brawijaya, Malang, East Java 65145, Indonesia
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Zhao YC, Xue CH, Zhang TT, Wang YM. Saponins from Sea Cucumber and Their Biological Activities. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:7222-7237. [PMID: 29932674 DOI: 10.1021/acs.jafc.8b01770] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Sea cucumbers, belonging to the phylum Echinodermata, have been valued for centuries as a nutritious and functional food with various bioactivities. Sea cucumbers can produce highly active substances, notably saponins, the main secondary metabolites, which are the basis of their chemical defense. The saponins are mostly triterpene glycosides with triterpenes or steroid in aglycone, which possess multiple biological properties including antitumor, hypolipidemic activity, improvement of nonalcoholic fatty liver, inhibition of fat accumulation, antihyperuricemia, promotion of bone marrow hematopoiesis, antihypertension, etc. Sea cucumber saponins have received attention due to their rich sources, low toxicity, high efficiency, and few side effects. This review summarizes current research on the structure and activities of sea cucumber saponins based on the physiological and pharmacological activities from source, experimental models, efficacy, and mechanisms, which may provide a valuable reference for the development of sea cucumber saponins.
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Affiliation(s)
- Ying-Cai Zhao
- College of Food Science and Engineering , Ocean University of China , Qingdao , 266003 , Shandong China
| | - Chang-Hu Xue
- College of Food Science and Engineering , Ocean University of China , Qingdao , 266003 , Shandong China
- Qingdao National Laboratory for Marine Science and Technology , Laboratory of Marine Drugs & Biological Products , Qingdao 266237 , China
| | - Tian-Tian Zhang
- College of Food Science and Engineering , Ocean University of China , Qingdao , 266003 , Shandong China
| | - Yu-Ming Wang
- College of Food Science and Engineering , Ocean University of China , Qingdao , 266003 , Shandong China
- Qingdao National Laboratory for Marine Science and Technology , Laboratory of Marine Drugs & Biological Products , Qingdao 266237 , China
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Pangestuti R, Arifin Z. Medicinal and health benefit effects of functional sea cucumbers. J Tradit Complement Med 2018; 8:341-351. [PMID: 29992105 PMCID: PMC6035309 DOI: 10.1016/j.jtcme.2017.06.007] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Revised: 05/12/2017] [Accepted: 06/21/2017] [Indexed: 11/22/2022] Open
Abstract
Sea cucumbers have long been used as food and traditional medicine in Asian countries with Stichopus hermanni, Thelenota ananas, Thelenota anax, Holothuria fuccogilva, and Actinopyga mauritiana as most highly-valued species. These organisms are potential source of high value-added compounds with therapeutic properties such as triterpene glycosides, carotenoids, bioactive peptides, vitamins, minerals, fatty acids, collagens, gelatins, chondroitin sulfates, amino acids. In the recent years, health benefit effects of sea cucumbers have been validated through scientific research and have shown medicinal value such as wound healing, neuroprotective, antitumor, anticoagulant, antimicrobial, and antioxidant. These functional materials lead to potential development in various foods and biomedicine industries. In this review, we have presented a general view of major medicinal and health benefit effects of functional sea cucumbers from Asia region. The structural significance and the potential application of sea cucumber-derived functional materials as well as their nutritional value are also discussed.
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Affiliation(s)
- Ratih Pangestuti
- Research Center for Oceanography, Indonesian Institute of Sciences, Jl. Pasir Putih 1, Ancol Timur, Jakarta Utara 14430, Indonesia
| | - Zainal Arifin
- Research Center for Oceanography, Indonesian Institute of Sciences, Jl. Pasir Putih 1, Ancol Timur, Jakarta Utara 14430, Indonesia
- Deputy of Earth Sciences, Indonesian Institute of Sciences, Jl. Jenderal Gatot Soebroto No 10, Jakarta 12710, Indonesia
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Khotimchenko Y. Pharmacological Potential of Sea Cucumbers. Int J Mol Sci 2018; 19:E1342. [PMID: 29724051 PMCID: PMC5983632 DOI: 10.3390/ijms19051342] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2018] [Revised: 04/22/2018] [Accepted: 04/24/2018] [Indexed: 12/15/2022] Open
Abstract
This review presents a detailed analysis of published research data focused on the pharmacological activity exerted by biologically active compounds isolated from sea cucumbers belonging to the class of Holothuroidea, phylum Echinodermata. The review contains descriptions of the structure, physico-chemical properties and pharmacological effects of these active substances. Particular attention is given to compounds with anticoagulant, antithrombotic, antioxidant, anticancer, anti-infectious, immune-stimulating and anti-ACE (angiotensin converting enzyme) activities as well as to the substances exerting a regulating influence on lipid and carbohydrate metabolism. All these compounds may be considered as prototypes for development of new pharmaceutical substances and medicines.
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Affiliation(s)
- Yuri Khotimchenko
- School of Biomedicine, Far Eastern Federal University, 8 ul. Sukhanova, Vladivostok 690950, Russia.
- National Scientific Center for Marine Biology, Far Eastern Branch of Russian Academy of Sciences, Vladivostok 690041, Russia.
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Yun SH, Sim EH, Han SH, Han JY, Kim SH, Silchenko AS, Stonik VA, Park JI. Holotoxin A₁ Induces Apoptosis by Activating Acid Sphingomyelinase and Neutral Sphingomyelinase in K562 and Human Primary Leukemia Cells. Mar Drugs 2018; 16:md16040123. [PMID: 29642569 PMCID: PMC5923410 DOI: 10.3390/md16040123] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Revised: 03/29/2018] [Accepted: 04/04/2018] [Indexed: 12/12/2022] Open
Abstract
Marine triterpene glycosides are attractive candidates for the development of anticancer agents. Holotoxin A1 is a triterpene glycoside found in the edible sea cucumber, Apostichopus (Stichopus) japonicus. We previously showed that cladoloside C2, the 25(26)-dihydro derivative of holotoxin A1, induced apoptosis in human leukemia cells by activating ceramide synthase 6. Thus, we hypothesized that holotoxin A1, which is structurally similar to cladoloside C2, might induce apoptosis in human leukemia cells through the same molecular mechanism. In this paper, we compared holotoxin A1 and cladoloside C2 for killing potency and mechanism of action. We found that holotoxin A1 induced apoptosis more potently than cladoloside C2. Moreover, holotoxin A1-induced apoptosis in K562 cells by activating caspase-8 and caspase-3, but not by activating caspase-9. During holotoxin A1 induced apoptosis, acid sphingomyelinase (SMase) and neutral SMase were activated in both K562 cells and human primary leukemia cells. Specifically inhibiting acid SMase and neutral SMаse with chemical inhibitors or siRNAs significantly inhibited holotoxin A1–induced apoptosis. These results indicated that holotoxin A1 might induce apoptosis by activating acid SMase and neutral SMase. In conclusion, holotoxin A1 represents a potential anticancer agent for treating leukemia. Moreover, the aglycone structure of marine triterpene glycosides might affect the mechanism involved in inducing apoptosis.
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Affiliation(s)
- Seong-Hoon Yun
- Department of Biochemistry, Dong-A University College of Medicine, Busan 49201, Korea.
| | - Eun-Hye Sim
- Department of Biochemistry, Dong-A University College of Medicine, Busan 49201, Korea.
| | - Sang-Heum Han
- Department of Biochemistry, Dong-A University College of Medicine, Busan 49201, Korea.
| | - Jin-Yeong Han
- Department of Laboratory Medicine, Dong-A University College of Medicine, Busan 49201, Korea.
| | - Sung-Hyun Kim
- Department of Internal Medicine, Dong-A University College of Medicine, Busan 49201, Korea.
| | - Alexandra S Silchenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russia.
| | - Valentin A Stonik
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russia.
| | - Joo-In Park
- Department of Biochemistry, Dong-A University College of Medicine, Busan 49201, Korea.
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Park S, Choi H, Kim HJ, Ahn JS, Kim HJ, Kim SH, Mun YC, Jung CW, Kim D. Genome-wide genotype-based risk model for survival in core binding factor acute myeloid leukemia patients. Ann Hematol 2018; 97:955-965. [DOI: 10.1007/s00277-018-3260-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2018] [Accepted: 01/25/2018] [Indexed: 12/28/2022]
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22
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Yun SH, Sim EH, Han SH, Kim TR, Ju MH, Han JY, Jeong JS, Kim SH, Silchenko AS, Stonik VA, Park JI. In vitro and in vivo anti-leukemic effects of cladoloside C 2 are mediated by activation of Fas/ceramide synthase 6/p38 kinase/c-Jun NH 2-terminal kinase/caspase-8. Oncotarget 2017; 9:495-511. [PMID: 29416631 PMCID: PMC5787484 DOI: 10.18632/oncotarget.23069] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 11/14/2017] [Indexed: 11/25/2022] Open
Abstract
We previously demonstrated that the quinovose-containing hexaoside stichoposide C (STC) is a more potent anti-leukemic agent than the glucose-containing stichoposide D (STD), and that these substances have different molecular mechanisms of action. In the present study, we investigated the novel marine triterpene glycoside cladoloside C2 from Cladolabes schmeltzii, which has the same carbohydrate moiety as STC. We assessed whether cladoloside C2 could induce apoptosis in K562 and HL-60 cells. We also evaluated whether it showed antitumor action in mouse leukemia xenograft models, and its molecular mechanisms of action. We investigated the molecular mechanism behind cladoloside C2-induced apoptosis of human leukemia cells, and examined the antitumor effect of cladoloside C2 in a HL-60 and K562 leukemia xenograft model. Cladoloside C2 dose- and time-dependently induced apoptosis in the analyzed cells, and led to the activation of Fas/ceramide synthase 6 (CerS6)/p38 kinase/JNK/caspase-8. This cladoloside C2-induced apoptosis was partially blocked by specific inhibition by Fas, CerS6, and p38 siRNA transfection, and by specific inhibition of JNK by SP600125 or dominant negative-JNK transfection. Cladoloside C2 exerted antitumor activity through the activation of Fas/CerS6/p38 kinase/JNK/caspase-8 without showing any toxicity in xenograft mouse models. The antitumor effect of cladoloside C2 was reversed in CerS6 shRNA-silenced xenograft models. Our results suggest that cladoloside C2 has in vitro and in vivo anti-leukemic effects due to the activation of Fas/CerS6/p38 kinase/JNK/caspase-8 in lipid rafts. These findings support the therapeutic relevance of cladoloside C2 in the treatment of human leukemia.
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Affiliation(s)
- Seong-Hoon Yun
- Department of Biochemistry, Dong-A University College of Medicine, Busan, South Korea
| | - Eun-Hye Sim
- Department of Biochemistry, Dong-A University College of Medicine, Busan, South Korea
| | - Sang-Heum Han
- Department of Biochemistry, Dong-A University College of Medicine, Busan, South Korea
| | - Tae-Rang Kim
- Department of Biochemistry, Dong-A University College of Medicine, Busan, South Korea
| | - Mi-Ha Ju
- Department of Pathology, Dong-A University College of Medicine, Busan, South Korea
| | - Jin-Yeong Han
- Department of Laboratory Medicine, Dong-A University College of Medicine, Busan, South Korea
| | - Jin-Sook Jeong
- Department of Pathology, Dong-A University College of Medicine, Busan, South Korea
| | - Sung-Hyun Kim
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, South Korea
| | - Alexandra S Silchenko
- G.B. Elyakov Pacific Institute of Bio-organic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Valentin A Stonik
- G.B. Elyakov Pacific Institute of Bio-organic Chemistry, Far-Eastern Branch of the Russian Academy of Sciences, Vladivostok, Russia
| | - Joo-In Park
- Department of Biochemistry, Dong-A University College of Medicine, Busan, South Korea
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Gao H, Gao MQ, Peng JJ, Han M, Liu KL, Han YT. Hispidulin mediates apoptosis in human renal cell carcinoma by inducing ceramide accumulation. Acta Pharmacol Sin 2017; 38:1618-1631. [PMID: 29119970 DOI: 10.1038/aps.2017.154] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Accepted: 07/09/2017] [Indexed: 01/10/2023] Open
Abstract
Hispidulin, a polyphenolic flavonoid extracted from the traditional Chinese medicinal plant S involucrata, exhibits anti-tumor effects in a wide array of human cancer cells, mainly through growth inhibition, apoptosis induction and cell cycle arrest. However, its precise anticancer mechanisms remain unclear. In this study, we investigated the molecular mechanisms that contribute to hispidulin-induced apoptosis of human clear-cell renal cell carcinoma (ccRCC) lines Caki-2 and ACHN. Hispidulin (10, 20 μmol/L) decreased the viability of ccRCC cells in dose- and time-dependent manners without affecting that of normal tubular epithelial cells. Moreover, hispidulin treatment dose-dependently increased the levels of cleaved caspase-8 and caspase-9, but the inhibitors of caspase-8 and caspase-9 only partly abrogated hispidulin-induced apoptosis, suggesting that hispidulin triggered apoptosis via both extrinsic and intrinsic pathways. Moreover, hispidulin treatment significantly inhibited the activity of sphingosine kinase 1 (SphK1) and consequently promoted ceramide accumulation, thus leading to apoptosis of the cancer cells, whereas pretreatment with K6PC-5, an activator of SphK1, or overexpression of SphK1 significantly attenuated the anti-proliferative and pro-apoptotic effects of hispidulin. In addition, hispidulin treatment dose-dependently activated ROS/JNK signaling and led to cell apoptosis. We further demonstrated in Caki-2 xenograft nude mice that injection of hispidulin (20, 40 mg·kg-1·d-1, ip) dose-dependently suppressed tumor growth accompanied by decreased SphK1 activity and increased ceramide accumulation in tumor tissues. Our findings reveal a new explanation for the anti-tumor mechanisms of hispidulin, and suggest that SphK1 and ceramide may serve as potential therapeutic targets for the treatment of ccRCC.
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Sajwani FH, Collin P, Adrian TE. Frondoside A potentiates the effects of conventional therapeutic agents in acute leukemia. Leuk Res 2017; 63:98-108. [PMID: 29127862 DOI: 10.1016/j.leukres.2017.11.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Revised: 10/30/2017] [Accepted: 11/02/2017] [Indexed: 10/18/2022]
Abstract
Acute leukemia is the major cause of mortality in hematological malignancies. Despite improvement of survival with current chemotherapies, patients die from the disease or side-effects of treatment. Thus, new therapeutic agents are needed. Frondoside A is a triterpenoid glycoside originally isolated from the sea cucumber, Cucumaria frondosa that has potent antitumor effects in various cancers. The current study investigated the effects of frondoside A in acute leukemia cell lines alone and in combination with drugs used for this malignancy. This study is the first comparing the efficacy of frondoside A to available conventional drugs. The acute leukemia cell lines used were CCRF-CEM, HL-60 and THP-1. Cells were cultured and treated with different concentrations of vincristine sulphate, asparaginase and prednisolone alone and in combination with frondoside A. The inhibitory concentration 50 (IC50) for each compound was determined for the cell lines. CCRF-CEM cells were very sensitive to frondoside A treatment while HL-60 and THP1 were less sensitive. Frondoside A markedly enhanced the anticancer effects of all of the conventional drugs. Synergistic effects were seen with most of the combinations. Frondoside A may be valuable in the treatment of acute leukemia, particularly when used in combination with current therapeutic drugs.
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Affiliation(s)
- F H Sajwani
- Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain, United Arab Emirates.
| | - P Collin
- Coastside Bio Resources, Deer Isle, ME 04627, USA
| | - T E Adrian
- Department of Physiology, College of Medicine and Health Sciences, United Arab Emirates University, P.O. Box 17666, Al Ain, United Arab Emirates.
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Mondol MAM, Shin HJ, Rahman MA, Islam MT. Sea Cucumber Glycosides: Chemical Structures, Producing Species and Important Biological Properties. Mar Drugs 2017; 15:md15100317. [PMID: 29039760 PMCID: PMC5666425 DOI: 10.3390/md15100317] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Revised: 10/07/2017] [Accepted: 10/11/2017] [Indexed: 01/29/2023] Open
Abstract
Sea cucumbers belonging to echinoderm are traditionally used as tonic food in China and other Asian countries. They produce abundant biologically active triterpene glycosides. More than 300 triterpene glycosides have been isolated and characterized from various species of sea cucumbers, which are classified as holostane and nonholostane depending on the presence or absence of a specific structural unit γ(18,20)-lactone in the aglycone. Triterpene glycosides contain a carbohydrate chain up to six monosaccharide units mainly consisting of d-xylose, 3-O-methy-d-xylose, d-glucose, 3-O-methyl-d-glucose, and d-quinovose. Cytotoxicity is the common biological property of triterpene glycosides isolated from sea cucumbers. Besides cytotoxicity, triterpene glycosides also exhibit antifungal, antiviral and hemolytic activities. This review updates and summarizes our understanding on diverse chemical structures of triterpene glycosides from various species of sea cucumbers and their important biological activities. Mechanisms of action and structural-activity relationships (SARs) of sea cucumber glycosides are also discussed briefly.
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Affiliation(s)
| | - Hee Jae Shin
- Marine Natural Products Laboratory, Korea Institute of Ocean Science and Technology, 787 Haeanro, Ansan 427-744, Korea.
| | - M Aminur Rahman
- World Fisheries University Pilot Programme, Pukyong National University (PKNU), 45 Yongso-ro, Nam-gu, Busan 48513, Korea.
| | - Mohamad Tofazzal Islam
- Department of Biotechnology, Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur 1706, Bangladesh.
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Mechanisms of cancer cell killing by sea cucumber-derived compounds. Invest New Drugs 2017; 35:820-826. [PMID: 28920157 PMCID: PMC5694523 DOI: 10.1007/s10637-017-0505-5] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Accepted: 08/24/2017] [Indexed: 12/29/2022]
Abstract
The aim of cancer therapy is to specifically eradicate tumor cells while causing minimal damage to normal tissues and minimal side-effects. Because of this, the use of natural substances with low toxicity is a good option. Sea cucumbers are one of many potential marine animals that contain valuable nutrients and medicinal properties. The medicinal value of sea cucumbers is attributed to the presence of bioactive agents with promising biological and pharmacological properties that include cytotoxic activity, induction of apoptosis, cell cycle arrest, inhibition of tumor growth, anti-metastatic and anti-angiogenic properties, and inhibition of drug resistance. This review discusses the mechanisms of cancer cell death induced by sea cucumber-derived compounds with regard to exploring the potential use of these marine natural products for cancer therapy.
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Aminin D, Pislyagin E, Astashev M, Es'kov A, Kozhemyako V, Avilov S, Zelepuga E, Yurchenko E, Kaluzhskiy L, Kozlovskaya E, Ivanov A, Stonik V. Glycosides from edible sea cucumbers stimulate macrophages via purinergic receptors. Sci Rep 2016; 6:39683. [PMID: 28004778 PMCID: PMC5177912 DOI: 10.1038/srep39683] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2015] [Accepted: 11/28/2016] [Indexed: 11/09/2022] Open
Abstract
Since ancient times, edible sea cucumbers have been considered a jewel of the seabed and used in Asian folk medicine for stimulation of resistance against different diseases. However, the power of this sea food has not been established on a molecular level. A particular group of triterpene glycosides was found to be characteristic metabolites of the animals, responsible for this biological action. Using one of them, cucumarioside A2-2 (CA2-2) from the edible Cucumaria japonica species as an example as well as inhibitory analysis, patch-clamp on single macrophages, small interfering RNA technique, immunoblotting, SPR analysis, computer modeling and other methods, we demonstrate low doses of CA2-2 specifically to interact with P2X receptors (predominantly P2X4) on membranes of mature macrophages, enhancing the reversible ATP-dependent Ca2+ intake and recovering Ca2+ transport at inactivation of these receptors. As result, interaction of glycosides of this type with P2X receptors leads to activation of cellular immunity.
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Affiliation(s)
- Dmitry Aminin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Evgeny Pislyagin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Maxim Astashev
- Institute of Cell Biophysics, Russian Academy of Sciences, Pushchino, Moscow Region 142290, Russia
| | - Andrey Es'kov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Valery Kozhemyako
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Sergei Avilov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Elena Zelepuga
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Ekaterina Yurchenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | | | - Emma Kozlovskaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
| | - Alexis Ivanov
- Institute of Biomedical Chemistry, Moscow, 119121, Russia
| | - Valentin Stonik
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok, 690022, Russia
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Yun SH, Shin SW, Stonik VA, Park JI. Ceramide as a Target of Marine Triterpene Glycosides for Treatment of Human Myeloid Leukemia. Mar Drugs 2016; 14:md14110205. [PMID: 27827870 PMCID: PMC5128748 DOI: 10.3390/md14110205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 10/19/2016] [Accepted: 10/28/2016] [Indexed: 12/16/2022] Open
Abstract
Acute myeloid leukemia (AML) is a heterogeneous myeloid clonal disorder exhibiting the accumulation of immature myeloid progenitors in the bone marrow and peripheral blood. Standard AML therapy requires intensive combination chemotherapy, which leads to significant treatment-related toxicity. The search for new, low toxic marine agents, inducing the generation of ceramide in leukemic cells is a new approach to improve the therapy of leukemia. This review focuses on the metabolism of sphingolipids, the role of ceramide in treating leukemia, and the antitumor activity, related to ceramide metabolism, of some marine metabolites, particularly stichoposides, triterpene glycosides extracted from sea cucumbers of the family Stichopodiidae.
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Affiliation(s)
- Seong-Hoon Yun
- Department of Biochemistry, Dong-A University College of Medicine, 32 Daesingongwon-ro, Seo-Gu, Busan 49201, Korea.
| | - Sung-Won Shin
- Department of Biochemistry, Dong-A University College of Medicine, 32 Daesingongwon-ro, Seo-Gu, Busan 49201, Korea.
| | - Valentin A Stonik
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Science, Vladivostok 690022, Russia.
- Department of Bioorganic Chemistry and Biotechnology, School of Natural Sciences, Far East Federal University, Vladivostok 690091, Russia.
| | - Joo-In Park
- Department of Biochemistry, Dong-A University College of Medicine, 32 Daesingongwon-ro, Seo-Gu, Busan 49201, Korea.
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Yun SH, Park ES, Shin SW, Ju MH, Han JY, Jeong JS, Kim SH, Stonik VA, Kwak JY, Park JI. By activating Fas/ceramide synthase 6/p38 kinase in lipid rafts, stichoposide D inhibits growth of leukemia xenografts. Oncotarget 2016; 6:27596-612. [PMID: 26318294 PMCID: PMC4695011 DOI: 10.18632/oncotarget.4820] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Accepted: 07/17/2015] [Indexed: 01/20/2023] Open
Abstract
Stichoposide D (STD) is a marine triterpene glycoside isolated from sea cucumbers. We examined the molecular mechanisms underlying the antitumor activity of STD in human leukemia cells. The role of Fas (CD95), ceramide synthase 6 (CerS6) and p38 kinase during STD-induced apoptosis was examined in human leukemia cells. In addition, the antitumor effects of STD in K562 and HL-60 leukemia xenograft models were investigated. We found that STD induces Fas translocation to lipid rafts, and thus mediates cell apoptosis. We also observed the activation of CerS6 and p38 kinase during STD-induced apoptosis. The use of methyl-β-cyclodextrin and nystatin to disrupt lipid rafts prevents the clustering of Fas and the activation of CerS6 and p38 kinase, and also inhibits STD-induced apoptosis. Specific inhibition by Fas, CerS6, and p38 kinase siRNA transfection partially blocked STD-induced apoptosis. In addition, STD has antitumor activity through the activation of CerS6 and p38 kinase without displaying any toxicity in HL-60 and K562 xenograft models. We observed that the anti-tumor effect of STD is partially prevented in CerS6 shRNA-silenced xenograft models. We first report that Fas/CerS6/p38 kinase activation in lipid rafts by STD is involved in its anti-leukemic activity. We also established that STD is able to enhance the chemosensitivity of K562 cells to etoposide or Ara-C. These data suggest that STD may be used alone or in combination with other chemotherapeutic agents to treat leukemia.
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Affiliation(s)
- Seong-Hoon Yun
- Department of Biochemistry, Dong-A University College of Medicine, Busan, South Korea
| | - Eun-Seon Park
- Department of Biochemistry, Dong-A University College of Medicine, Busan, South Korea
| | - Sung-Won Shin
- Department of Biochemistry, Dong-A University College of Medicine, Busan, South Korea
| | - Mi-Ha Ju
- Department of Pathology, Dong-A University College of Medicine, Busan, South Korea
| | - Jin-Yeong Han
- Department of Laboratory Medicine, Dong-A University College of Medicine, Busan, South Korea
| | - Jin-Sook Jeong
- Department of Pathology, Dong-A University College of Medicine, Busan, South Korea
| | - Sung-Hyun Kim
- Department of Internal Medicine, Dong-A University College of Medicine, Busan, South Korea
| | - Valentin A Stonik
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far East Division, The Russian Academy of Sciences, Vladivostok, Russia
| | - Jong-Young Kwak
- Department of Biochemistry, Dong-A University College of Medicine, Busan, South Korea
| | - Joo-In Park
- Department of Biochemistry, Dong-A University College of Medicine, Busan, South Korea
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Bahrami Y, Franco CMM. Acetylated Triterpene Glycosides and Their Biological Activity from Holothuroidea Reported in the Past Six Decades. Mar Drugs 2016; 14:E147. [PMID: 27527190 PMCID: PMC4999908 DOI: 10.3390/md14080147] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 07/17/2016] [Accepted: 07/19/2016] [Indexed: 01/30/2023] Open
Abstract
Sea cucumbers have been valued for many centuries as a tonic and functional food, dietary delicacies and important ingredients of traditional medicine in many Asian countries. An assortment of bioactive compounds has been described in sea cucumbers. The most important and abundant secondary metabolites from sea cucumbers are triterpene glycosides (saponins). Due to the wide range of their potential biological activities, these natural compounds have gained attention and this has led to their emergence as high value compounds with extended application in nutraceutical, cosmeceutical, medicinal and pharmaceutical products. They are characterized by bearing a wide spectrum of structures, such as sulfated, non-sulfated and acetylated glycosides. Over 700 triterpene glycosides have been reported from the Holothuroidea in which more than 145 are decorated with an acetoxy group having 38 different aglycones. The majority of sea cucumber triterpene glycosides are of the holostane type containing a C18 (20) lactone group and either Δ(7(8)) or Δ(9(11)) double bond in their genins. The acetoxy group is mainly connected to the C-16, C-22, C-23 and/or C-25 of their aglycone. Apparently, the presence of an acetoxy group, particularly at C-16 of the aglycone, plays a significant role in the bioactivity; including induction of caspase, apoptosis, cytotoxicity, anticancer, antifungal and antibacterial activities of these compounds. This manuscript highlights the structure of acetylated saponins, their biological activity, and their structure-activity relationships.
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Affiliation(s)
- Yadollah Bahrami
- Medical Biotechnology, Flinders Medical Science and Technology, School of Medicine, Flinders University, Adelaide SA 5042, Australia.
- Centre for Marine Bioproducts Development, Flinders University, Adelaide SA 5042, Australia.
- Medical Biology Research Center, Kermanshah University of Medical Sciences, Kermanshah 6714415185, Iran.
| | - Christopher M M Franco
- Medical Biotechnology, Flinders Medical Science and Technology, School of Medicine, Flinders University, Adelaide SA 5042, Australia.
- Centre for Marine Bioproducts Development, Flinders University, Adelaide SA 5042, Australia.
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Abstract
Studies over the past two decades have identified ceramide as a multifunctional central molecule in the sphingolipid biosynthetic pathway. Given its diverse tumor suppressive activities, molecular understanding of ceramide action will produce fundamental insights into processes that limit tumorigenesis and may identify key molecular targets for therapeutic intervention. Ceramide can be activated by a diverse array of stresses such as heat shock, genotoxic damage, oxidative stress and anticancer drugs. Ceramide triggers a variety of tumor suppressive and anti-proliferative cellular programs such as apoptosis, autophagy, senescence, and necroptosis by activating or repressing key effector molecules. Defects in ceramide generation and metabolism in cancer contribute to tumor cell survival and resistance to chemotherapy. The potent and versatile anticancer activity profile of ceramide has motivated drug development efforts to (re-)activate ceramide in established tumors. This review focuses on our current understanding of the tumor suppressive functions of ceramide and highlights the potential downstream targets of ceramide which are involved in its tumor suppressive action.
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Yu S, Ye X, Chen L, Xie X, Zhou Q, Lian XY, Zhang Z. Cytotoxic and anti-colorectal tumor effects of sulfated saponins from sea cucumber Holothuria moebii. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2015; 22:1112-1119. [PMID: 26547534 DOI: 10.1016/j.phymed.2015.08.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 08/04/2015] [Accepted: 08/14/2015] [Indexed: 06/05/2023]
Abstract
BACKGROUND Whether sulfated saponins from Holothuria moebii inhibit the proliferation of colorectal cancer cells and have anti-colorectal tumor effects in animal model has not been investigated. PURPOSE To evaluate the cytotoxic and anti-colorectal tumor effects of sulfated saponins from sea cucumber Holothuria moebii. METHOD (1) Column chromatography was used to prepare the total and individual saponins and HPLC was applied to define the components of the total saponins; (2) the activity of the total and individual saponins inhibiting the proliferation of human colorectal cancer cells was determined by SRB assay and the apoptosis induced by the saponins was qualified using cytometric analysis with Annexin V-FITC/PI double staining; and (3) the antitumor effects of the sulfated saponins on colorectal CT-26 tumor-bearing Balb/c mice were tested. RESULTS The total and individual sulfated saponins significantly inhibited the proliferation of four different human colorectal cancer cells with IC50 values ranging from 1.04 to 4.08 μM (or 1.46 to 3.24 μg/ml for total saponins) and induced late apoptosis at an early treatment time in cancer cells. The total saponins (120 mg/kg) had antitumor activity in colorectal CT-26 tumor-bearing Balb/c mice. CONCLUSION The sulfated saponins from H. moebii remarkably inhibited the proliferation of different human colorectal cancer cells and had significant anti-colorectal tumor activity in animal model.
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Affiliation(s)
- Siran Yu
- Ocean College, Zhejiang University, Hangzhou 310058, China
| | - Xuewei Ye
- Ocean College, Zhejiang University, Hangzhou 310058, China
| | - Lu Chen
- Ocean College, Zhejiang University, Hangzhou 310058, China
| | - Xin Xie
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Qian Zhou
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Xiao-Yuan Lian
- College of Pharmaceutical Sciences, Zhejiang University, Hangzhou 310058, China
| | - Zhizhen Zhang
- Ocean College, Zhejiang University, Hangzhou 310058, China.
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Ordoñez R, Fernández A, Prieto-Domínguez N, Martínez L, García-Ruiz C, Fernández-Checa JC, Mauriz JL, González-Gallego J. Ceramide metabolism regulates autophagy and apoptotic cell death induced by melatonin in liver cancer cells. J Pineal Res 2015; 59:178-89. [PMID: 25975536 PMCID: PMC4523438 DOI: 10.1111/jpi.12249] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 05/08/2015] [Indexed: 12/22/2022]
Abstract
Autophagy is a process that maintains homeostasis during stress, although it also contributes to cell death under specific contexts. Ceramides have emerged as important effectors in the regulation of autophagy, mediating the crosstalk with apoptosis. Melatonin induces apoptosis of cancer cells; however, its role in autophagy and ceramide metabolism has yet to be clearly elucidated. This study was aimed to evaluate the effect of melatonin administration on autophagy and ceramide metabolism and its possible link with melatonin-induced apoptotic cell death in hepatocarcinoma (HCC) cells. Melatonin (2 mm) transiently induced autophagy in HepG2 cells through JNK phosphorylation, characterized by increased Beclin-1 expression, p62 degradation, and LC3II and LAMP-2 colocalization, which translated in decreased cell viability. Moreover, ATG5 silencing sensitized HepG2 cells to melatonin-induced apoptosis, suggesting a dual role of autophagy in cell death. Melatonin enhanced ceramide levels through both de novo synthesis and acid sphingomyelinase (ASMase) stimulation. Serine palmitoyltransferase (SPT) inhibition with myriocin prevented melatonin-induced autophagy and ASMase inhibition with imipramine-impaired autophagy flux. However, ASMase inhibition partially protected HepG2 cells against melatonin, while SPT inhibition significantly enhanced cell death. Findings suggest a crosstalk between SPT-mediated ceramide generation and autophagy in protecting against melatonin, while specific ASMase-induced ceramide production participates in melatonin-mediated cell death. Thus, dual blocking of SPT and autophagy emerges as a potential strategy to potentiate the apoptotic effects of melatonin in liver cancer cells.
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Affiliation(s)
- Raquel Ordoñez
- Institute of Biomedicine (IBIOMED), University of León, León, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain
| | - Ana Fernández
- Institute of Biomedicine (IBIOMED), University of León, León, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain
| | - Néstor Prieto-Domínguez
- Institute of Biomedicine (IBIOMED), University of León, León, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain
| | - Laura Martínez
- Department of Cell Death and Proliferation, Institute of Biomedical Research of Barcelona (IIBB), Consejo Superior Investigaciones Cientificas (CSIC) and Liver Unit-Hospital Clinic, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain
| | - Carmen García-Ruiz
- Department of Cell Death and Proliferation, Institute of Biomedical Research of Barcelona (IIBB), Consejo Superior Investigaciones Cientificas (CSIC) and Liver Unit-Hospital Clinic, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain
- University of Southern California Research Center for Alcohol Liver and Pancreatic Diseases and Cirrhosis, Keck School of Medicine, USC, Los Angeles, CA, USA
| | - José C. Fernández-Checa
- Department of Cell Death and Proliferation, Institute of Biomedical Research of Barcelona (IIBB), Consejo Superior Investigaciones Cientificas (CSIC) and Liver Unit-Hospital Clinic, Barcelona, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain
- University of Southern California Research Center for Alcohol Liver and Pancreatic Diseases and Cirrhosis, Keck School of Medicine, USC, Los Angeles, CA, USA
| | - José L. Mauriz
- Institute of Biomedicine (IBIOMED), University of León, León, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain
| | - Javier González-Gallego
- Institute of Biomedicine (IBIOMED), University of León, León, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Hepáticas y Digestivas (CIBERehd), Spain
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Kitatani K, Taniguchi M, Okazaki T. Role of Sphingolipids and Metabolizing Enzymes in Hematological Malignancies. Mol Cells 2015; 38:482-95. [PMID: 25997737 PMCID: PMC4469906 DOI: 10.14348/molcells.2015.0118] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 05/07/2015] [Indexed: 12/16/2022] Open
Abstract
Sphingolipids such as ceramide, sphingosine-1-phosphate and sphingomyelin have been emerging as bioactive lipids since ceramide was reported to play a role in human leukemia HL-60 cell differentiation and death. Recently, it is well-known that ceramide acts as an inducer of cell death, that sphingomyelin works as a regulator for microdomain function of the cell membrane, and that sphingosine-1-phosphate plays a role in cell survival/proliferation. The lipids are metabolized by the specific enzymes, and each metabolite could be again returned to the original form by the reverse action of the different enzyme or after a long journey of many metabolizing/synthesizing pathways. In addition, the metabolites may serve as reciprocal bio-modulators like the rheostat between ceramide and sphingosine-1-phosphate. Therefore, the change of lipid amount in the cells, the subcellular localization and the downstream signal in a specific subcellular organelle should be clarified to understand the pathobiological significance of sphingolipids when extracellular stimulation induces a diverse of cell functions such as cell death, proliferation and migration. In this review, we focus on how sphingolipids and their metabolizing enzymes cooperatively exert their function in proliferation, migration, autophagy and death of hematopoetic cells, and discuss the way developing a novel therapeutic device through the regulation of sphingolipids for effectively inhibiting cell proliferation and inducing cell death in hematological malignancies such as leukemia, malignant lymphoma and multiple myeloma.
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Affiliation(s)
- Kazuyuki Kitatani
- Tohoku Medical Megabank Organization, Sendai,
Japan
- Department of Obstetrics and Gynecology, Tohoku University Graduate School of Medicine, Tohoku University, Sendai,
Japan
| | - Makoto Taniguchi
- Medical Research Institute, Kanazawa Medical University, Uchinada, Ishikawa 920-0293,
Japan
| | - Toshiro Okazaki
- Medical Research Institute, Kanazawa Medical University, Uchinada, Ishikawa 920-0293,
Japan
- Department of Medicine, Division of Hematology/Immunology, Kanazawa Medical University, Uchinada, Ishikawa 920-0293,
Japan
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Aminin DL, Menchinskaya ES, Pisliagin EA, Silchenko AS, Avilov SA, Kalinin VI. Anticancer activity of sea cucumber triterpene glycosides. Mar Drugs 2015; 13:1202-23. [PMID: 25756523 PMCID: PMC4377980 DOI: 10.3390/md13031202] [Citation(s) in RCA: 84] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2015] [Revised: 02/16/2015] [Accepted: 02/25/2015] [Indexed: 11/16/2022] Open
Abstract
Triterpene glycosides are characteristic secondary metabolites of sea cucumbers (Holothurioidea, Echinodermata). They have hemolytic, cytotoxic, antifungal, and other biological activities caused by membranotropic action. These natural products suppress the proliferation of various human tumor cell lines in vitro and, more importantly, intraperitoneal administration in rodents of solutions of some sea cucumber triterpene glycosides significantly reduces both tumor burden and metastasis. The anticancer molecular mechanisms include the induction of tumor cell apoptosis through the activation of intracellular caspase cell death pathways, arrest of the cell cycle at S or G2/M phases, influence on nuclear factors, NF-κB, and up-down regulation of certain cellular receptors and enzymes participating in cancerogenesis, such as EGFR (epidermal growth factor receptor), Akt (protein kinase B), ERK (extracellular signal-regulated kinases), FAK (focal adhesion kinase), MMP-9 (matrix metalloproteinase-9) and others. Administration of some glycosides leads to a reduction of cancer cell adhesion, suppression of cell migration and tube formation in those cells, suppression of angiogenesis, inhibition of cell proliferation, colony formation and tumor invasion. As a result, marked growth inhibition of tumors occurs in vitro and in vivo. Some holothurian triterpene glycosides have the potential to be used as P-gp mediated MDR reversal agents in combined therapy with standard cytostatics.
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Affiliation(s)
- Dmitry L Aminin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Science, Prospect 100 letya Vladivostoka, 159, Vladivostok 690022, Russia.
| | - Ekaterina S Menchinskaya
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Science, Prospect 100 letya Vladivostoka, 159, Vladivostok 690022, Russia.
| | - Evgeny A Pisliagin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Science, Prospect 100 letya Vladivostoka, 159, Vladivostok 690022, Russia.
| | - Alexandra S Silchenko
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Science, Prospect 100 letya Vladivostoka, 159, Vladivostok 690022, Russia.
| | - Sergey A Avilov
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Science, Prospect 100 letya Vladivostoka, 159, Vladivostok 690022, Russia.
| | - Vladimir I Kalinin
- G.B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Science, Prospect 100 letya Vladivostoka, 159, Vladivostok 690022, Russia.
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Honey-Escandón M, Arreguín-Espinosa R, Solís-Marín FA, Samyn Y. Biological and taxonomic perspective of triterpenoid glycosides of sea cucumbers of the family Holothuriidae (Echinodermata, Holothuroidea). Comp Biochem Physiol B Biochem Mol Biol 2014; 180:16-39. [PMID: 25263252 DOI: 10.1016/j.cbpb.2014.09.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Revised: 09/18/2014] [Accepted: 09/18/2014] [Indexed: 10/24/2022]
Abstract
Since the discovery of saponins in sea cucumbers, more than 150 triterpene glycosides have been described for the class Holothuroidea. The family Holothuriidae has been increasingly studied in search for these compounds. With many species awaiting recognition and formal description this family currently consists of five genera and the systematics at the species-level taxonomy is, however, not yet fully understood. We provide a bibliographic review of the triterpene glycosides that has been reported within the Holothuriidae and analyzed the relationship of certain compounds with the presence of Cuvierian tubules. We found 40 species belonging to four genera and 121 compounds. Holothurin A and B are the most common saponins for Actinopyga, Holothuria, and Pearsonothuria. The genus Bohadschia presents mainly bivittoside C and D. Actinopyga has only sulfated saponins mainly oxidized, Bohadschia non-sulfated ones mainly non-oxidized, Holothuria and Pearsonothuria contain both types of compounds, mainly oxidized. Within the genus Holothuria, the subgenus Panningothuria only has non-sulfated saponins. The presence of sulfated and non-sulfated compounds seemingly relates to the expellability or the absence of Cuvierian tubules and the temporal or permanent concealing habits of the species. Our study concludes that better insights into the systematic distribution of saponins in Holothuriidae will only be possible if the identifications of the investigated species are confirmed by a taxonomist, especially in this group wherein cryptic species and variation between life-history stages are common and yet poorly understood. Understanding of saponin distribution within the Holothuriidae would also benefit from a stabilization of triterpene glycoside nomenclature.
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Affiliation(s)
- Magali Honey-Escandón
- Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, C.P. 04510 México, D. F., Mexico.
| | - Roberto Arreguín-Espinosa
- Departamento de Química de Biomacromoléculas, Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, C.P. 04510 México, D. F., Mexico
| | - Francisco Alonso Solís-Marín
- Laboratorio de Sistemática y Ecología de Equinodermos, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Apartado Postal 70-350, C.P. 04510 México, D. F., Mexico
| | - Yves Samyn
- Scientific Service of Heritage, Invertebrates Collections, Royal Belgian Institute of Natural Sciences, Vautierstraat 29, B-1000 Brussels, Belgium
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Park JI, Bae HR, Kim CG, Stonik VA, Kwak JY. Relationships between chemical structures and functions of triterpene glycosides isolated from sea cucumbers. Front Chem 2014; 2:77. [PMID: 25250309 PMCID: PMC4159031 DOI: 10.3389/fchem.2014.00077] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Accepted: 08/21/2014] [Indexed: 11/15/2022] Open
Abstract
Many marine triterpene glycosides have in vitro and in vivo activities with very low toxicity, suggesting that they are suitable agents for the prevention and treatment of different diseases, particularly cancer. However, the molecular mechanisms of action of natural marine compounds in cancer, immune, and other various cells are not fully known. This review focuses on the structural characteristics of marine triterpene glycosides and how these affect their biological activities and molecular mechanisms. In particular, the membranotropic and membranolytic activities of frondoside A and cucumariosides from sea cucumbers and their ability to induce cytotoxicity and apoptosis have been discussed, with a focus on structure-activity relationships. In addition, the structural characteristics and antitumor effects of stichoposide C and stichoposide D have been reviewed along with underlying their molecular mechanisms.
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Affiliation(s)
- Joo-In Park
- Department of Biochemistry, Dong-A UniversityBusan, South Korea
| | - Hae-Rahn Bae
- Department of Physiology, School of Medicine, Dong-A UniversityBusan, South Korea
| | - Chang Gun Kim
- Department of Biochemistry, Dong-A UniversityBusan, South Korea
- Immune-Network Pioneer Research Center, Dong-A UniversityBusan, South Korea
| | - Valentin A. Stonik
- The Laboratory of Chemistry of Marine Natural Products, G. B. Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of ScienceVladivostok, Russia
| | - Jong-Young Kwak
- Department of Biochemistry, Dong-A UniversityBusan, South Korea
- Immune-Network Pioneer Research Center, Dong-A UniversityBusan, South Korea
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Vandamme TF. Use of rodents as models of human diseases. J Pharm Bioallied Sci 2014; 6:2-9. [PMID: 24459397 PMCID: PMC3895289 DOI: 10.4103/0975-7406.124301] [Citation(s) in RCA: 211] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2013] [Revised: 11/20/2013] [Accepted: 11/20/2013] [Indexed: 12/12/2022] Open
Abstract
Advances in molecular biology have significantly increased the understanding of the biology of different diseases. However, these discoveries have not yet been fully translated into improved treatments for patients with diseases such as cancers. One of the factors limiting the translation of knowledge from preclinical studies to the clinic has been the limitations of in vivo diseases models. In this brief review, we will discuss the advantages and disadvantages of rodent models that have been developed to simulate human pathologies, focusing in models that employ xenografts and genetic modification. Within the framework of genetically engineered mouse (GEM) models, we will review some of the current genetic strategies for modeling diseases in the mouse and the preclinical studies that have already been undertaken. We will also discuss how recent improvements in imaging technologies may increase the information derived from using these GEMs during early assessments of potential therapeutic pathways. Furthermore, it is interesting to note that one of the values of using a mouse model is the very rapid turnover rate of the animal, going through the process of birth to death in a very short timeframe relative to that of larger mammalian species.
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Affiliation(s)
- Thierry F Vandamme
- University of Strasbourg, Faculty of Pharmacy, UMR 7199 CNRS, Laboratory of Concept and Application of Bioactive Molecules, Biogalenic Team, 74 Route du Rhin, 67400 Illkirch Graffenstaden, France
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40
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Stonik VA, Fedorov SN. Marine low molecular weight natural products as potential cancer preventive compounds. Mar Drugs 2014; 12:636-71. [PMID: 24473167 PMCID: PMC3944507 DOI: 10.3390/md12020636] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2013] [Revised: 01/14/2014] [Accepted: 01/15/2014] [Indexed: 12/17/2022] Open
Abstract
Due to taxonomic positions and special living environments, marine organisms produce secondary metabolites that possess unique structures and biological activities. This review is devoted to recently isolated and/or earlier described marine compounds with potential or established cancer preventive activities, their biological sources, molecular mechanisms of their action, and their associations with human health and nutrition. The review covers literature published in 2003–2013 years and focuses on findings of the last 2 years.
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Affiliation(s)
- Valentin A Stonik
- Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Science, Prospect 100 let Vladivostoku, 159, Vladivostok 690950, Russia.
| | - Sergey N Fedorov
- Elyakov Pacific Institute of Bioorganic Chemistry, Far-Eastern Branch of the Russian Academy of Science, Prospect 100 let Vladivostoku, 159, Vladivostok 690950, Russia.
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Aminin DL, Pislyagin EA, Menchinskaya ES, Silchenko AS, Avilov SA, Kalinin VI. Immunomodulatory and Anticancer Activity of Sea Cucumber Triterpene Glycosides. STUDIES IN NATURAL PRODUCTS CHEMISTRY 2014. [DOI: 10.1016/b978-0-444-63294-4.00003-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
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