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Xie L, Liang S, Jiwa H, Zhang L, Lu Q, Wang X, Luo L, Xia H, Li Z, Wang J, Luo X, Luo J. Securinine inhibits the tumor growth of human bladder cancer cells by suppressing Wnt/β-catenin signaling pathway and activating p38 and JNK signaling pathways. Biochem Pharmacol 2024; 223:116125. [PMID: 38484850 DOI: 10.1016/j.bcp.2024.116125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2023] [Revised: 02/28/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
Bladder cancer (BC) is the most common malignant tumor in urinary system. Although chemotherapy is one of the most important adjuvant treatments for BC, drug resistance, non-specific toxicity and severe side effects are the major obstacles to BC chemotherapy. Natural products have always been a leading resource of antitumor drug discovery, with the advantages of excellent effectiveness, low toxicity, multi-targeting potency and easy availability. In this study, we evaluated the potential anti-tumor effect of securinine (SEC), a natural alkaloid from Securinega suffruticosa, on BC cells in vitro and in vivo, and delineated the underlying mechanism. We found that SEC inhibited the proliferation, migration and invasion, induced the apoptosis of BC cells in vitro, and retarded the xenograft tumor growth of BC cell in vivo. Notably, SEC had a promising safety profile because it presented no or low toxicity on normal cells and mice. Mechanistically, SEC inactivated Wnt/β-catenin signaling pathway while activated p38 and JNK signaling pathway. Moreover, β-catenin overexpression, the p38 inhibitor SB203580 and the JNK inhibitor SP600125 both mitigated the inhibitory effect of SEC on BC cells. Furthermore, we demonstrated a synergistic inhibitory effect of SEC and gemcitabine (GEM) on BC cells in vitro and in vivo. Taken together, our findings suggest that SEC may exert anti-BC cell effect at least through the activation of p38 and JNK signaling pathways, and the inhibition of Wnt/β-catenin signaling pathway. More meaningfully, the findings indicate that GEM-induced BC cell killing can be enhanced by combining with SEC.
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Affiliation(s)
- Liping Xie
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Shiqiong Liang
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Habu Jiwa
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, China
| | - Lulu Zhang
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Qiuping Lu
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Xiaoxuan Wang
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Lijuan Luo
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Haichao Xia
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Ziyun Li
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Jiayu Wang
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China
| | - Xiaoji Luo
- Department of Orthopedics, The First Affiliated Hospital of Chongqing Medical University, Chongqing 400042, China
| | - Jinyong Luo
- Key Laboratory of Diagnostic Medicine Designated by the Chinese Ministry of Education, School of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, China.
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Hou W, Huang H, Wu XQ, Lan JX. Bioactivities and mechanism of action of securinega alkaloids derivatives reported prior to 2022. Biomed Pharmacother 2023; 158:114190. [PMID: 36916441 DOI: 10.1016/j.biopha.2022.114190] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/28/2022] [Accepted: 12/28/2022] [Indexed: 01/05/2023] Open
Abstract
Securinega alkaloids are indolizidine alkaloids extracted from the leaf and root of an Asian plant, Securinega suffruticosa. Since its discovery in 1956 by Russian scientists, numerous studies have been conducted on securinega alkaloids and their derivatives as bioactive agents. In this review, published work on the bioactivities and the mechanism of action of securinega alkaloids and their derivatives is addressed. References were obtained through for example, the Web of Science, Science Direct, Pubmed and Google Scholar. Research into the synthesis of securinega alkaloids and their derivatives lacking activity assessment has been excluded. Comprehensive reviews show that securinega alkaloids and their derivatives exhibit a wide range of activities among which antineoplastic activity and nervous system related activity were reported although the mechanisms of action remain in part unknown. The other activities such as induction of differentiation, reversal of multi-drug resistance, cardiovascular system related activity, anti-inflammatory, adjuvant agent and anti-pathogenic activity are also reviewed. We found that modification at the C12, C14, and C15 sites on securinine improves the antitumor activity, while derivatives in which a bivalent mimetic is linked to the C15 site is beneficial for differentiation induction activity and reversal of P-glycoprotein mediated drug resistance. The most related pathways involved in the bioactivity of securinega alkaloids and their derivatives are JAK/STAT, PI3K/AKT/mTOR and MAPK. A perspective and expectation concerning the research of securinega alkaloids is presented at the end of this article. This review indicates directions around which constant endeavor could be valuable for researchers in the near future.
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Affiliation(s)
- Wen Hou
- College of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China.
| | - Hao Huang
- College of Pharmacy, Gannan Medical University, Ganzhou 341000, PR China
| | - Xue-Qiang Wu
- Center for Precision Medicine, Guangdong Provincial Key Laboratory of Precision Medicine and Clinical Translational Research of Hakka Population, Meizhou People's Hospital (Huangtang Hospital), Meizhou Academy of Medical Sciences, Meizhou 514000, PR China
| | - Jin-Xia Lan
- College of Public Health and Health Management, Gannan Medical University, Ganzhou 341000, PR China.
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Ashraf SM, Mahanty S, Rathinasamy K. Securinine induces mitotic block in cancer cells by binding to tubulin and inhibiting microtubule assembly: A possible mechanistic basis for its anticancer activity. Life Sci 2021; 287:120105. [PMID: 34756929 DOI: 10.1016/j.lfs.2021.120105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 10/20/2021] [Accepted: 10/25/2021] [Indexed: 10/20/2022]
Abstract
AIM Analysis of the anticancer and antimitotic activity of the plant derived alkaloid securinine along with its effect on the organization of cellular microtubules as well as its binding with purified goat brain tubulin in-vitro. MATERIALS AND METHODS The cytotoxicity of securinine on different cell lines was conducted using SRB assay. The effect of securinine on the cellular microtubules was analyzed using immunofluorescence microscopy. The binding of securinine on purified goat brain tubulin was evaluated using fluorescent spectroscopy. KEY FINDINGS Securinine effectively prevented the proliferation of cervical, breast and lung cancer cells with an IC50 of 6, 10 and 11 μM respectively and induced minimal toxicity in HEK cell line. Securinine at concentrations higher than IC50 induced significant depolymerization in interphase and mitotic microtubules and it suppressed the reassembly of cold depolymerized spindle microtubules in HeLa cells. In the wound healing assay, securinine effectively suppressed the migration of HeLa cells to close the wound. Securinine bound to tubulin with a Kd of 9.7 μM and inhibited the assembly of tubulin into microtubules. The treatment with securinine induced a mitochondrial dependent ROS response in HeLa cells which enhanced the cytotoxic effect of securinine. The result from gene expression studies indicates that securinine induced apoptosis in MCF-7 cells through p53 dependent pathway. SIGNIFICANCE Considering the strong anticancer and anti-metastatic property and low toxicity in non-malignant cell lines, we suggest that securinine can be used as a chemotherapeutic drug either alone or in combination with other known anticancer molecules.
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Affiliation(s)
- Shabeeba M Ashraf
- School of Biotechnology, National Institute of Technology Calicut, Calicut, Kerala, India
| | - Susobhan Mahanty
- School of Biotechnology, National Institute of Technology Calicut, Calicut, Kerala, India
| | - Krishnan Rathinasamy
- School of Biotechnology, National Institute of Technology Calicut, Calicut, Kerala, India.
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The Experimental Role of Medicinal Plants in Treatment of Toxoplasma gondii Infection: A Systematic Review. Acta Parasitol 2021; 66:303-328. [PMID: 33159263 DOI: 10.1007/s11686-020-00300-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Accepted: 10/12/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND Toxoplasma gondii is the global protozoa that could cause contamination in warm-blooded animals and is considered among the opportunistic pathogens in immunocompromised patients. Among the people at risk, toxoplasmosis infection can lead to the incidence of severe clinical manifestations, encephalitis, chorioretinitis, and even death. PURPOSE The present research is focused on the new research for the treatment of toxoplasmosis parasitic disease using medicinal herbs. METHODS The search was performed in five English databases, including Scopus, PubMed, Web of Science, EMBASE, and Google Scholar up from 2010 to December 2019. Studies in any language were entered in the searching step if they had an English abstract. The words and terms were used as a syntax with specific tags of each database. RESULTS Out of 1832 studies, 36 were eligible to be reviewed. The findings showed that 17 studies (47%) were performed in vitro, 14 studies (39%) in vivo, and 5 studies (14%) both in vivo and in vitro. CONCLUSION The studies showed that the plant extracts can be a good alternative in reducing the toxoplasmosis effects in the host and the herbal extracts can be used to produce natural product-based drugs affecting toxoplasmosis with fewer side-effects than synthetic drugs.
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Zhu Z, Chen C, Jiang J, Zhang Q, Du Z, Wei S, Song X, Tang J, Lei J, Ke Z, Zou Y. Synthesis and biological evaluation of suffrutines A, B and their N-fused analogues. Org Chem Front 2020. [DOI: 10.1039/d0qo00050g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The synthesis, structure confirmation, stability and isomerization features of suffrutines A, B and their N-fused analogues were reported. Biological tests showed that the introduction of nitrogen atom might be beneficial to the anticancer activity.
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Affiliation(s)
- Zefeng Zhu
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510000
- P. R. China
| | - Chun Chen
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510000
- P. R. China
| | - Jingxing Jiang
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510000
- P. R. China
| | - Qianzhong Zhang
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510000
- P. R. China
| | - Zhibo Du
- Zhongshan WanHan Pharmceutical Co
- Ltd
- Zhongshan 528451
- P. R. China
| | - Shuxian Wei
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510000
- P. R. China
| | - Xianheng Song
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510000
- P. R. China
| | - Jie Tang
- Pharmacy Department of Nanchong Central Hospital and the Second Clinical Hospital of North Sichuan Medical College
- Nanchong
- P. R. China
| | - Jinping Lei
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510000
- P. R. China
| | - Zhuofeng Ke
- School of Chemistry
- Sun Yat-sen University
- Guangzhou 510000
- P. R. China
| | - Yong Zou
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510000
- P. R. China
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Susceptibility of Toxoplasma gondii to Ethanolic Extract of Tinospora crispa in Vero Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2019; 2019:2916547. [PMID: 31827548 PMCID: PMC6885813 DOI: 10.1155/2019/2916547] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/13/2019] [Accepted: 10/21/2019] [Indexed: 12/13/2022]
Abstract
Background Toxoplasmosis remains widely distributed globally and is one of the major neglected parasitic zoonotic infections. The infection is still endemic in most parts of the world due to poor control as well as challenges of the currently used medications which can be overcome by using natural products. This study evaluated the effect of ethanolic extract from the stem of Tinospora crispa (EETC) on host cell invasion and intracellular replication of Toxoplasma gondii. Method The stem powder of T. crispa was soaked in absolute ethanol for 72 hours. The resulting ethanolic extract was screened for the presence of phytochemicals. Vero cells monolayer in 96-well plate was infected with RH strain of T. gondii and treated with concentrations of the EETC, Veratrine alkaloid, and clindamycin ranging from 1.56 to 200 μg/mL. MTT assay was conducted after 24 hours to evaluate the cytotoxicity and antiparasitic activities of the EETC. Four and 24 hours treatment models were adapted to assess the infection index and intracellular proliferation of T. Results The study revealed that the EETC had no cytotoxic effects on Vero cells with IC50 = 179 μg/mL, as compared to clindamycin (IC50 = 116.5 μg/mL) and Veratrine alkaloid (IC50 = 60.4 μg/mL). The EETC had good anti-toxoplasma activities with IC50 = 6.31 μg/mL in comparison with clindamycin (IC50 = 8.33 μg/mL) and Veratrine alkaloid (IC50 = 14.25 μg/mL). The EETC caused more than 70% and 80% reduction in infection index and intracellular proliferation in both treatment models, respectively. Conclusion This in vitro study showed that the EETC contains promising phytochemicals effective against T. gondii and safe to the host cells.
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Antien K, Lacambra A, Cossío FP, Massip S, Deffieux D, Pouységu L, Peixoto PA, Quideau S. Bio‐inspired Total Synthesis of Twelve
Securinega
Alkaloids: Structural Reassignments of (+)‐Virosine B and (−)‐Episecurinol A. Chemistry 2019; 25:11574-11580. [DOI: 10.1002/chem.201903122] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 07/19/2019] [Indexed: 11/08/2022]
Affiliation(s)
- Kevin Antien
- Univ. Bordeaux, ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Aitor Lacambra
- Univ. Bordeaux, ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
- Departamento de Química Orgánica IUniversidad del País Vasco Avda. Tolosa 72, Edificio Korta 20018 San Sebastián Spain
| | - Fernando P. Cossío
- Departamento de Química Orgánica IUniversidad del País Vasco Avda. Tolosa 72, Edificio Korta 20018 San Sebastián Spain
| | - Stéphane Massip
- Univ. BordeauxInstitut Européen de Chimie et Biologie (CNRS-UMS 3033) 2 rue Robert Escarpit 33607 Pessac Cedex France
| | - Denis Deffieux
- Univ. Bordeaux, ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Laurent Pouységu
- Univ. Bordeaux, ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Philippe A. Peixoto
- Univ. Bordeaux, ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
| | - Stéphane Quideau
- Univ. Bordeaux, ISM (CNRS-UMR 5255) 351 cours de la Libération 33405 Talence Cedex France
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8
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Review of Experimental Compounds Demonstrating Anti-Toxoplasma Activity. Antimicrob Agents Chemother 2016; 60:7017-7034. [PMID: 27600037 DOI: 10.1128/aac.01176-16] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Toxoplasma gondii is a ubiquitous apicomplexan parasite capable of infecting humans and other animals. Current treatment options for T. gondii infection are limited and most have drawbacks, including high toxicity and low tolerability. Additionally, no FDA-approved treatments are available for pregnant women, a high-risk population due to transplacental infection. Therefore, the development of novel treatment options is needed. To aid this effort, this review highlights experimental compounds that, at a minimum, demonstrate inhibition of in vitro growth of T. gondii When available, host cell toxicity and in vivo data are also discussed. The purpose of this review is to facilitate additional development of anti-Toxoplasma compounds and potentially to extend our knowledge of the parasite.
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Vu HD, Renault J, Roisnel T, Gouault N, Uriac P. Synthesis of 3-substituted indolizidines from amino-ynones derivatives. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.05.108] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
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Eissa MM, Barakat AMA, Amer EI, Younis LK. Could miltefosine be used as a therapy for toxoplasmosis? Exp Parasitol 2015; 157:12-22. [PMID: 26112396 DOI: 10.1016/j.exppara.2015.06.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2014] [Revised: 06/05/2015] [Accepted: 06/14/2015] [Indexed: 02/08/2023]
Abstract
Toxoplasmosis is a zoonotic protozoal disease affecting more than a billion people worldwide. The shortfalls of the current treatment options necessitate the development of non-toxic and well-tolerated, efficient alternatives especially against the cyst form. The current study was undertaken to investigate, for the first time, the potential potency of miltefosine against Toxoplasma gondii infection in acute and chronic experimental toxoplasmosis. Results showed that there is no evidence of anti-parasitic activity of miltefosine against T. gondii tachyzoites in acute experimental toxoplasmosis. However, anti-parasitic activity of miltefosine against T. gondii cyst stage in chronic experimental toxoplasmosis could not be excluded as demonstrated by significant reduction in brain cyst burden. Moreover, considerable morphological changes in the cysts were revealed by light and electron microscopy study and also by amelioration of pathological changes in the brain. Future studies should focus on enhancement of anti-toxoplasma activity of miltefosine against chronic toxoplasmosis using formulation based nanotechnology. To the best of our knowledge, this is the first study highlighting efficacy of miltefosine against chronic toxoplasmosis, thus, increasing the list of diseases that can be targeted by this drug.
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Affiliation(s)
- Maha M Eissa
- Department of Medical Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | | | - Eglal I Amer
- Department of Medical Parasitology, Faculty of Medicine, Alexandria University, Alexandria, Egypt.
| | - Layla K Younis
- Department of Pathology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
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Chirkin E, Atkatlian W, Do Q, Gaslonde T, Dufat TH, Michel S, Lemoine P, Genta-Jouve G, Porée FH. Chiroptical study and absolute configuration of securinine oxidation products. Nat Prod Res 2015; 29:1235-42. [PMID: 25790256 DOI: 10.1080/14786419.2015.1023727] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Time-dependant density functional theory-electronic circular dichroism spectra prediction was carried out to study the absolute configuration of phyllanthidine-type derivatives 5 and 6, derived from securinine (1) and its enantiomer virosecurinine (2), respectively. This method demonstrated to be very reliable in this alkaloid series. Thus, 5 and 6 shared the same stereochemistry as their parent precursors, confirming the retentive nature of the oxidation sequence. In addition, this study highlighted the key role of the methylene bridge (BC ring) in the chiroptical activity of these compounds. These results fully clarified the stereochemical relationships between the phyllanthidine and the securinine subgroups.
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Affiliation(s)
- Egor Chirkin
- a Laboratoire de Pharmacognosie UMR CNRS 8638 COMETE, Faculté de Pharmacie, Université Paris Descartes , 4 Avenue de l'Observatoire, F-75006 Paris , France
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12
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Chirkin E, Atkatlian W, Porée FH. The Securinega Alkaloids. THE ALKALOIDS: CHEMISTRY AND BIOLOGY 2015; 74:1-120. [DOI: 10.1016/bs.alkal.2014.11.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Raj D, Kokotkiewicz A, Luczkiewicz M. Production of therapeutically relevant indolizidine alkaloids in Securinega suffruticosa in vitro shoots maintained in liquid culture systems. Appl Biochem Biotechnol 2014; 175:1576-87. [PMID: 25413794 PMCID: PMC4318985 DOI: 10.1007/s12010-014-1386-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Accepted: 11/10/2014] [Indexed: 01/26/2023]
Abstract
Microshoot cultures of the Chinese medicinal plant Securinega suffruticosa (Pall.) Rehd. were established and evaluated for the presence of therapeutically relevant indolizidine alkaloids securinine (S) and allosecurinine (AS). The cultures were maintained in shake flasks (SFs) and a bubble column bioreactor (BCB) using the modified Murashige's shoot multiplication medium supplemented with 1.0 mg l(-1) benzyladenine (BA), 3.0 mg l(-1) 2-isopentenyladenine (2iP), and 0.3 mg l(-1) 1-naphthaleneacetic acid (NAA). The influence of light and medium supplementation strategies with biosynthesis precursor (lysine (LY)) and nutrient formulations (casein hydrolysate (CH) and coconut water (CW)) on biomass growth and alkaloid production were investigated. SF cultures grown in the presence of light yielded up to 6.02 mg g(-1) dry weight (DW) S and 3.70 mg g(-1) DW AS, corresponding to the respective productivities of 98.39 and 60.21 mg l(-1). Among feeding experiments, CW supplementation proved most effective for SF-grown shoots, increasing biomass yield and AS productivity by 52 and 44 %, respectively. Maximum concentrations of securinine (3.25 mg g(-1) DW) and allosecurinine (3.41 mg g(-1) DW) in BCB cultures were achieved in the case of 1.0 g l(-1) LY supplementation. These values corresponded to the productivities of 42.64 and 44.47 mg per bioreactor, respectively.
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Affiliation(s)
- Danuta Raj
- The Chair and Department of Pharmacognosy, Faculty of Pharmacy, Wroclaw Medical University, ul. Borowska 211 A, 50-556, Wrocław, Poland
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Wabuyele SL, Wald D, Xu Y. Development and validation of LC-MS/MS method for quantitative determination of (-)-securinine in mouse plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 960:19-26. [PMID: 24786218 DOI: 10.1016/j.jchromb.2014.04.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2013] [Revised: 04/02/2014] [Accepted: 04/06/2014] [Indexed: 11/25/2022]
Abstract
(-)-Securinine (SE) is a major alkaloid found in plant Securinega suffruticosa, which has a wide range of pharmacological activities including anticancer, anti-parasitic and central nervous system stimulating effects, etc. To aid the pharmacological study of SE, we developed an LC-MS/MS method for quantitative determination of SE in mouse plasma. In this method, plasma samples were first prepared with salting-out assisted liquid-liquid extraction using cold acetonitrile (-20°C) and 2.00 M ammonium acetate. Separation of SE and the internal standard (IS) from sample matrix was achieved on a Gemini Nx C18 column using 40% acetonitrile and 60% 10.0mM ammonium acetate at a flow rate of 0.200 mL min(-1). Quantification of SE was accomplished with positive electrospray ionization tandem mass spectrometry using mass transitions m/z 218.1→84.1 for SE, and m/z 204.1→70.2 for the IS. This method has a lower limit of quantitation (LLOQ) of 0.600 ng mL(-1) and a linear calibration range up to 600 ng mL(-1) in mouse plasma. The intra- and inter-run accuracy (%RE) and precision (%CV) were ≤ ± 6% and 6%, respectively. The IS normalized matrix factors from six lots of plasma matrices ranged 0.92-1.07, and the recoveries of plasma SE were 99-109%. The validated method has been applied to the measurement of SE in plasma samples of a mouse study.
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Affiliation(s)
- Simuli L Wabuyele
- Department of Chemistry, Cleveland State University, Cleveland, OH 44115, United States
| | - David Wald
- Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, United States
| | - Yan Xu
- Department of Chemistry, Cleveland State University, Cleveland, OH 44115, United States; Case Comprehensive Cancer Center, Case Western Reserve University, Cleveland, OH 44106, United States.
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