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Shahzad K, Asad M, Asiri AM, Irfan M, Iqbal MA. In-vitro anticancer profile of recent ruthenium complexes against liver cancer. REV INORG CHEM 2022. [DOI: 10.1515/revic-2021-0040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Ruthenium complexes are considered as the most favorable alternatives to traditional platinum-based cancer drugs owing to their acceptable toxicity level, selectivity, variant oxidation states and ability to treat platinum-resistant cancer cells. They have similar ligand exchange kinetics as platinum drugs but can be tailored according to our desire by ligands influence. In the current study, we illustrate the in-vitro anticancer profile of some ruthenium complexes (2016–2021) against human hepatocellular carcinoma (HepG2). The anticancer activity of ruthenium complexes is determined by comparing their IC50 values with one another and positive controls. Fortunately, some ruthenium complexes including 3, 4, 6, 14, 15, 20, 42, and 48 exhibit surpassed in-vitro anticancer profile than that of positive controls promising as potential candidates against liver cancer. We also explored the structure-activity relationship (SAR) which is a key factor in the rational designing and synthesis of new ruthenium drugs. It covers the factors affecting anticancer activity including lipophilicity, planarity, area and bulkiness, the steric influence of different ligands, and electronic effects induced by ligands, stability, aqueous solubility and bioavailability to the target sites. The data reported here will provide strong support in the plausible design and synthesis of ruthenium anticancer drugs in the upcoming days.
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Affiliation(s)
- Khurram Shahzad
- Department of Chemistry , University of Agriculture , Faisalabad , 38000 , Pakistan
| | - Mohammad Asad
- Center of Excellence for Advanced Materials Research (CEAMR) , King Abdulaziz University , P.O. Box 80203 , Jeddah 21589 , Saudi Arabia
- Chemistry Department , Faculty of Science, King Abdulaziz University , P.O. Box 80203 , Jeddah 21589 , Saudi Arabia
| | - Abdullah M. Asiri
- Center of Excellence for Advanced Materials Research (CEAMR) , King Abdulaziz University , P.O. Box 80203 , Jeddah 21589 , Saudi Arabia
- Chemistry Department , Faculty of Science, King Abdulaziz University , P.O. Box 80203 , Jeddah 21589 , Saudi Arabia
| | - Muhammad Irfan
- Department of Chemistry , University of Agriculture , Faisalabad , 38000 , Pakistan
| | - Muhammad Adnan Iqbal
- Department of Chemistry , University of Agriculture , Faisalabad , 38000 , Pakistan
- Organometallic and Coordination Chemistry Laboratory , University of Agriculture , Faisalabad , 38000 , Pakistan
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A Comparative Analysis of In Vitro Toxicity of Synthetic Zeolites on IMR-90 Human Lung Fibroblast Cells. Molecules 2021; 26:molecules26113194. [PMID: 34073510 PMCID: PMC8198335 DOI: 10.3390/molecules26113194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/23/2021] [Accepted: 05/24/2021] [Indexed: 11/16/2022] Open
Abstract
Broad industrial application of zeolites increases the opportunity of inhalation. However, the potential impact of different types and compositions of zeolite on cytotoxicity is still unknown. Four types of synthetic zeolites have been prepared for assessing the effect on lung fibroblast: two zeolite L (LTL-R and LTL-D), ZSM-5 (MFI-S), and faujasite (FAU-S). The cytotoxicity of zeolites on human lung fibroblast (IMR-90) was assessed using WST1 cell proliferation assay, mitochondrial function, membrane leakage of lactate dehydrogenase, reduced glutathione levels, and mitochondrial membrane potential were assessed under control. Intracellular changes were examined using transmission electron microscopy (TEM). Toxicity-related gene expressions were evaluated by PCR array. The result showed significantly higher toxicity in IMR-90 cells with FAU-S than LTL-R, LTL-D and MFI-S exposure. TEM showed FAU-S, spheroidal zeolite with a low Si/Al ratio, was readily internalized forming numerous phagosomes in IMR-90 cells, while the largest and disc-shaped zeolites showed the lowest toxicity and were located in submembranous phagosomes in IMR-90 cells. Differential expression of TNF related genes was detected using PCR arrays and confirmed using qRT-PCR analysis of selected genes. Collectively, the exposure of different zeolites shows different toxicity on IMR-90 cells.
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Stefanowicz-Hajduk J, Ochocka JR. Real-time cell analysis system in cytotoxicity applications: Usefulness and comparison with tetrazolium salt assays. Toxicol Rep 2020; 7:335-344. [PMID: 32090021 PMCID: PMC7025972 DOI: 10.1016/j.toxrep.2020.02.002] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 01/31/2020] [Accepted: 02/06/2020] [Indexed: 01/08/2023] Open
Abstract
RTCA system allows to easily monitor cell adhesion and proliferation. The real-time impedance technique is widely used in many toxicological studies. RTCA results are generally comparable with results from tetrazolium salts assays. RTCA analysis should be limited when drugs with electroactive additives are tested. Tetrazolium salts assays should be avoided when colored compounds are studied.
Real-time cell analysis (RTCA) is a technique based on impedance and microsensor electrodes. RTCA system allows label-free, real-time, and continuous monitoring of cell adhesion, morphology, and rate of cell proliferation. The system offers a wide range of applications, mainly in toxicological studies, new drug screening, and microbiology. Here, we describe the usefulness of the system in different applications and compare this technology with conventional endpoint assays based on tetrazolium salts. We present advantages and disadvantages of the system and endpoint methods and their limitations in cytotoxicity investigations.
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Affiliation(s)
- Justyna Stefanowicz-Hajduk
- Department of Biology and Pharmaceutical Botany, Medical University of Gdańsk, Al. Hallera 107, 80-416, Gdańsk, Poland
| | - J Renata Ochocka
- Department of Biology and Pharmaceutical Botany, Medical University of Gdańsk, Al. Hallera 107, 80-416, Gdańsk, Poland
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Kostrhunova H, Zajac J, Novohradsky V, Kasparkova J, Malina J, Aldrich-Wright JR, Petruzzella E, Sirota R, Gibson D, Brabec V. A Subset of New Platinum Antitumor Agents Kills Cells by a Multimodal Mechanism of Action Also Involving Changes in the Organization of the Microtubule Cytoskeleton. J Med Chem 2019; 62:5176-5190. [PMID: 31030506 DOI: 10.1021/acs.jmedchem.9b00489] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The substitution inert platinum agent [Pt(1 S,2 S-diaminocyclohexane)(5,6-dimethyl-1,10-phenanthroline)]2+ (56MeSS, 5) is a potent cytotoxic metallodrug. In contrast to conventional cisplatin or oxaliplatin, the mechanism of action (MoA) of 5 is fundamentally different. However, details of the mechanism by which the 5,6-dimethyl-1,10-phenanthroline ligand contributes to the cytotoxicity of 5 and its derivatives have not been sufficiently clarified so far. Here, we show that 5 and its Pt(IV) derivatives exhibit an intriguing potency in the triple-negative breast cancer cells MDA-MB-231. Moreover, we show that the Pt(IV) derivatives of 5 act by multimodal MoA resulting in the global biological effects, that is, they damage nuclear DNA, reduce the mitochondrial membrane potential, induce the epigenetic processes, and last but not least, the data provide evidence that changes in the organization of cytoskeleton networks are functionally important for 5 and its derivatives, in contrast to clinically used platinum cytostatics, to kill cancer cells.
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Affiliation(s)
- Hana Kostrhunova
- Czech Academy of Sciences , Institute of Biophysics , Kralovopolska 135 , CZ-61265 Brno , Czech Republic
| | - Juraj Zajac
- Czech Academy of Sciences , Institute of Biophysics , Kralovopolska 135 , CZ-61265 Brno , Czech Republic
| | - Vojtech Novohradsky
- Czech Academy of Sciences , Institute of Biophysics , Kralovopolska 135 , CZ-61265 Brno , Czech Republic
| | - Jana Kasparkova
- Czech Academy of Sciences , Institute of Biophysics , Kralovopolska 135 , CZ-61265 Brno , Czech Republic
| | - Jaroslav Malina
- Czech Academy of Sciences , Institute of Biophysics , Kralovopolska 135 , CZ-61265 Brno , Czech Republic
| | - Janice R Aldrich-Wright
- School of Science and Health , Western Sydney University , Penrith South DC 1797 , NSW , Australia
| | - Emanuele Petruzzella
- Institute for Drug Research, School of Pharmacy , The Hebrew University , Jerusalem 91120 , Israel
| | - Roman Sirota
- Institute for Drug Research, School of Pharmacy , The Hebrew University , Jerusalem 91120 , Israel
| | - Dan Gibson
- Institute for Drug Research, School of Pharmacy , The Hebrew University , Jerusalem 91120 , Israel
| | - Viktor Brabec
- Czech Academy of Sciences , Institute of Biophysics , Kralovopolska 135 , CZ-61265 Brno , Czech Republic
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5
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Kostrhunova H, Petruzzella E, Gibson D, Kasparkova J, Brabec V. An Anticancer Pt IV Prodrug That Acts by Mechanisms Involving DNA Damage and Different Epigenetic Effects. Chemistry 2019; 25:5235-5245. [PMID: 30740808 DOI: 10.1002/chem.201805626] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 02/07/2019] [Indexed: 01/25/2023]
Abstract
Dual- or multi-action PtIV prodrugs represent a new generation of platinum anticancer drugs. The important property of these PtIV prodrugs is that their antitumor action combines several different mechanisms owing to the presence of biologically active axial ligands. This work describes the synthesis and some biological properties of a "triple-action" prodrug that releases in cancer cells cisplatin and two different epigenetically acting moieties, octanoate and phenylbutyrate. It is demonstrated, with the aid of modern methods of molecular and cellular biology and pharmacology, that the presence of three different functionalities in a single molecule of the PtIV prodrug results in a selective and high potency in tumor cells including those resistant to cisplatin [the IC50 values in the screened malignant cell lines ranged from as low as 9 nm (HCT-116) to 74 nm (MDA-MB-231)]. It is also demonstrated that cellular activation of the PtIV prodrug results in covalent modification of DNA through the release of the platinum moiety accompanied by inhibition of the activity of histone deacetylases caused by phenylbutyrate and by global hypermethylation of DNA by octanoate. Thus, the PtIV prodrug introduced in this study acts as a true "multi-action" prodrug, which is over two orders of magnitude more active than clinically used cisplatin, in both 2D monolayer culture and 3D spheroid cancer cells.
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Affiliation(s)
- Hana Kostrhunova
- Institute of Biophysics, Czech Academy of Sciences, Kralovopolska 135, CZ-61265, Brno, Czech Republic
| | - Emanuele Petruzzella
- Institute for Drug Research, School of Pharmacy, The Hebrew University, Jerusalem, 91120, Israel
| | - Dan Gibson
- Institute for Drug Research, School of Pharmacy, The Hebrew University, Jerusalem, 91120, Israel
| | - Jana Kasparkova
- Institute of Biophysics, Czech Academy of Sciences, Kralovopolska 135, CZ-61265, Brno, Czech Republic.,Department of Biophysics, Faculty of Science, Palacky University, 17. listopadu 12, CZ-77146, Olomouc, Czech Republic
| | - Viktor Brabec
- Institute of Biophysics, Czech Academy of Sciences, Kralovopolska 135, CZ-61265, Brno, Czech Republic
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Ma L, Zhang X, Xu X, Ke Y, Dai J, Cheng H, Mao W. Compatibility principle in the Tanyu Tongzhi Formula revealed by a cell-based analysis. JOURNAL OF ETHNOPHARMACOLOGY 2019; 231:507-515. [PMID: 30508622 DOI: 10.1016/j.jep.2018.11.043] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 11/22/2018] [Accepted: 11/29/2018] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE The concept of the prescription in Traditional Chinese Medicine (TCM) is usually characterized by the compatibility principle "monarch, minister, assistant, and guide", which means herbs play primary, secondary, auxiliary, or harmonic roles, respectively, to achieve the optimally holistic effect. Following this compatibility principle, the Tanyu Tongzhi Formula (TTF), used for many years to treat cardiovascular diseases, has been proved effective clinically and experimentally. AIM OF THE STUDY The ancient compatibility principle is based on experiences, but whether its underlying interactions can be explained at the cellular level is unknown. We aimed to explore the mechanisms of activity of the TTF herbs and the interactions between them. MATERIALS AND METHODS We used a real-time cell analyzer to record the responses of COS-7 cells to the herbs in TTF, both individually and in different combinations. We also used biochemical assays to further characterize the TTF activity. RESULTS Monarch herb Fructus trichosanthis acts as an inhibitor of the EGF signaling. It's cytotoxicity, derived from inhibition of tubulin polymerization, could be completely neutralized by the combination of the phlegm group, or the whole TTF combination. Meanwhile, the minister, assistant, and guide herbs in the TTF did not affect EGF signaling. CONCLUSION Our results provide a demonstration, at the cellular level, of the compatibility principle of "monarch, minister, assistant, and guide" in TTF. Under the guidance of this principle, TTF exerts the anti-inflammation and anti-tumor effects through inhibiting EGF signaling, while avoiding the microtubule-disrupting activity of Fructus trichosanthis.
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Affiliation(s)
- Lan Ma
- Department of Cardiology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Xue Zhang
- Department of Pathology and Pathophysiology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Xiaoming Xu
- Department of Cardiology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Yuehai Ke
- Department of Pathology and Pathophysiology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Jin Dai
- Department of Cardiology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Hongqiang Cheng
- Department of Pathology and Pathophysiology, Zhejiang University School of Medicine, Hangzhou 310058, China.
| | - Wei Mao
- Department of Cardiology, The First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310053, China.
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Krebs K, Pfeil EM, Simon K, Grundmann M, Häberlein F, Bautista-Aguilera OM, Gütschow M, Weaver CD, Fleischmann BK, Kostenis E. Label-Free Whole Cell Biosensing for High-Throughput Discovery of Activators and Inhibitors Targeting G Protein-Activated Inwardly Rectifying Potassium Channels. ACS OMEGA 2018; 3:14814-14823. [PMID: 30555990 PMCID: PMC6289404 DOI: 10.1021/acsomega.8b02254] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 10/22/2018] [Indexed: 06/09/2023]
Abstract
Dynamic mass redistribution (DMR) and cellular dielectric spectroscopy (CDS) are label-free biosensor technologies that capture real-time integrated cellular responses upon exposure to extra- and intracellular stimuli. They register signaling routes that are accompanied by cell shape changes and/or molecular movement of cells proximal to the biosensor to which they are attached. Here, we report the unexpected observation that robust DMR and CDS signatures are also elicited upon direct stimulation of G protein-activated inwardly rectifying potassium (GIRK) channels, which are involved in the regulation of excitability in the heart and brain. Using ML297, a small-molecule GIRK activator, along with channel blockers and cytoskeletal network inhibitors, we found that GIRK activation exerts its effects on cell shape by a mechanism which depends on actin but not the microtubule network. Because label-free real-time biosensing (i) quantitatively determines concentration dependency of GIRK activators, (ii) accurately assesses the impact of GIRK channel blockers, (iii) is high throughput-compatible, and (iv) visualizes previously unknown cellular consequences downstream of direct GIRK activation, we do not only provide a novel experimental strategy for identification of GIRK ligands but also an entirely new angle to probe GIRK (ligand) biology. We envision that DMR and CDS may add to the repertoire of technologies for systematic exploitation of ion channel function and, in turn, to the identification of novel GIRK ligands in order to treat cardiovascular and neurological disorders.
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Affiliation(s)
- Katrin
M. Krebs
- Molecular,
Cellular and Pharmacobiology Section, Institute for Pharmaceutical
Biology, University of Bonn, Nussallee 6, 53115 Bonn, Germany
- Research
Training Group 1873, University of Bonn, Bonn, Germany
| | - Eva M. Pfeil
- Molecular,
Cellular and Pharmacobiology Section, Institute for Pharmaceutical
Biology, University of Bonn, Nussallee 6, 53115 Bonn, Germany
- Research
Training Group 1873, University of Bonn, Bonn, Germany
| | - Katharina Simon
- Molecular,
Cellular and Pharmacobiology Section, Institute for Pharmaceutical
Biology, University of Bonn, Nussallee 6, 53115 Bonn, Germany
| | - Manuel Grundmann
- Molecular,
Cellular and Pharmacobiology Section, Institute for Pharmaceutical
Biology, University of Bonn, Nussallee 6, 53115 Bonn, Germany
| | - Felix Häberlein
- Molecular,
Cellular and Pharmacobiology Section, Institute for Pharmaceutical
Biology, University of Bonn, Nussallee 6, 53115 Bonn, Germany
| | - Oscar M. Bautista-Aguilera
- Pharmaceutical
Chemistry I, Institute of Pharmacy, University
of Bonn, An der Immenburg
4, 53121 Bonn, Germany
| | - Michael Gütschow
- Pharmaceutical
Chemistry I, Institute of Pharmacy, University
of Bonn, An der Immenburg
4, 53121 Bonn, Germany
| | - C. David Weaver
- Vanderbilt
Institute of Chemical Biology, Department of Pharmacology and Department
of Chemistry, Vanderbilt University, Nashville, 37232 Tennessee, United States
| | - Bernd K. Fleischmann
- Institute
of Physiology I, Life and Brain Center, Medical Faculty, University of Bonn, Sigmund-Freud-Straße 25, 53105 Bonn, Germany
| | - Evi Kostenis
- Molecular,
Cellular and Pharmacobiology Section, Institute for Pharmaceutical
Biology, University of Bonn, Nussallee 6, 53115 Bonn, Germany
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Feng WW, Zhang Y, Tang JF, Zhang CE, Dong Q, Li RY, Xiao XH, Peng C, Dong XP, Yan D. Combination of chemical fingerprinting with bioassay, a preferable approach for quality control of Safflower Injection. Anal Chim Acta 2018; 1003:56-63. [DOI: 10.1016/j.aca.2017.11.069] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2017] [Revised: 10/23/2017] [Accepted: 11/27/2017] [Indexed: 10/18/2022]
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9
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Antivascular and antitumor properties of the tubulin-binding chalcone TUB091. Oncotarget 2017; 8:14325-14342. [PMID: 27224920 PMCID: PMC5362409 DOI: 10.18632/oncotarget.9527] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2016] [Accepted: 05/01/2016] [Indexed: 12/28/2022] Open
Abstract
We investigated the microtubule-destabilizing, vascular-targeting, anti-tumor and anti-metastatic activities of a new series of chalcones, whose prototype compound is (E)-3-(3’’-amino-4’’-methoxyphenyl)-1-(5’-methoxy-3’,4’-methylendioxyphenyl)-2-methylprop-2-en-1-one (TUB091). X-ray crystallography showed that these chalcones bind to the colchicine site of tubulin and therefore prevent the curved-to-straight structural transition of tubulin, which is required for microtubule formation. Accordingly, TUB091 inhibited cancer and endothelial cell growth, induced G2/M phase arrest and apoptosis at 1-10 nM. In addition, TUB091 displayed vascular disrupting effects in vitro and in the chicken chorioallantoic membrane (CAM) assay at low nanomolar concentrations. A water-soluble L-Lys-L-Pro derivative of TUB091 (i.e. TUB099) showed potent antitumor activity in melanoma and breast cancer xenograft models by causing rapid intratumoral vascular shutdown and massive tumor necrosis. TUB099 also displayed anti-metastatic activity similar to that of combretastatin A4-phosphate. Our data indicate that this novel class of chalcones represents interesting lead molecules for the design of vascular disrupting agents (VDAs). Moreover, we provide evidence that our prodrug approach may be valuable for the development of anti-cancer drugs.
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10
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Xia C, Shui L, Lou G, Ye B, Zhu W, Wang J, Wu S, Xu X, Mao L, Xu W, Chen Z, Liu Y, Zheng M. 0404 inhibits hepatocellular carcinoma through a p53/miR-34a/SIRT1 positive feedback loop. Sci Rep 2017; 7:4396. [PMID: 28667294 PMCID: PMC5493669 DOI: 10.1038/s41598-017-04487-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 05/16/2017] [Indexed: 01/06/2023] Open
Abstract
DNA-damaging agents have been used in cancer chemotherapy for a long history. Unfortunately, chemotherapeutic treatment strategies against hepatocellular carcinoma (HCC) are still ineffective. We screened a novel DNA-damaging compound, designated as 0404, by using time-dependent cellular response profiling (TCRP) based on unique DNA-damage characteristics. We used human HCC cell lines and HCC xenograft mouse model to analyze the anti-cancer effects of 0404. Transcriptome and miRNA arrays were used to verify the anti-cancer mechanism of 0404. It was confirmed that p53 signaling pathway was crucial in 0404 anti-cancer activity and the expression of miR-34a, a key tumor-suppressive miRNA, was up-regulated in 0404-treated HepG2 cells. MiR-34a expression was also down-regulated in HCCs compared with corresponding non-cancerous hepatic tissues. We further identified the mechanisms of 0404 in HepG2 cells. 0404 increased miR-34a expression and acylation p53 protein levels and decreased SIRT1 protein levels in a concentration-dependent manner. The sensitivity of HepG2 cells to 0404 was significantly decreased by transfection with miR-34a inhibitors and SIRT1 protein levels were up-regulated by miR-34a inhibition. Our findings show that 0404 is probably an attractive agent for treating HCC, especially in HCC with wide type (WT) p53, through forming a p53/miR-34a/SIRT1 signal feedback loop to promote cell apoptosis.
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Affiliation(s)
- Caixia Xia
- The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of School of Medicine, Zhejiang University, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China.,Department of Infectious Diseases, Hangzhou First People's Hospital, Nanjing Medical University, Hangzhou, China
| | - Liyan Shui
- The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of School of Medicine, Zhejiang University, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Guohua Lou
- The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of School of Medicine, Zhejiang University, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Bingjue Ye
- The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of School of Medicine, Zhejiang University, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Wei Zhu
- The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of School of Medicine, Zhejiang University, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Jing Wang
- The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of School of Medicine, Zhejiang University, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Shanshan Wu
- The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of School of Medicine, Zhejiang University, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Xiao Xu
- Hangzhou ACEA Pharmaceutical Research Co., Ltd., Hangzhou, China
| | - Long Mao
- Hangzhou ACEA Pharmaceutical Research Co., Ltd., Hangzhou, China
| | - Wanhong Xu
- Hangzhou ACEA Pharmaceutical Research Co., Ltd., Hangzhou, China
| | - Zhi Chen
- The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of School of Medicine, Zhejiang University, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China
| | - Yanning Liu
- The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of School of Medicine, Zhejiang University, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China.
| | - Min Zheng
- The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital of School of Medicine, Zhejiang University, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Hangzhou, China.
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11
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Functional Mitochondria Are Important for the Effect of Resveratrol. Molecules 2017; 22:molecules22050847. [PMID: 28531100 PMCID: PMC6153999 DOI: 10.3390/molecules22050847] [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: 03/13/2017] [Revised: 05/15/2017] [Accepted: 05/16/2017] [Indexed: 12/18/2022] Open
Abstract
Resveratrol (Resv) is a polyphenol reported to modulate mitochondrial activity. The aim was to use HeLa and 143B cells to characterize the action of Resv on mitochondrial activity, cell size and proliferation using wild type (WT) and Rho 0 cells deficient in mitochondrial DNA. In both HeLa WT and Rho 0 cells, the oxygen consumption rate (OCR) was increased at 20 µM Resv after 24 h, whereas only a non-significant increase of OCR was observed in 143B WT cells. Resv decreased cell number concentration-dependently in both WT and Rho 0 cell types. An increased cell diameter was observed in HeLa WT, but not in Rho 0 when treated with Resv. Overall, the findings presented indicate that functional mitochondria are a prerequisite for cell enlargement by Resv.
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12
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The Inhibition of Mast Cell Activation of Radix Paeoniae alba Extraction Identified by TCRP Based and Conventional Cell Function Assay Systems. PLoS One 2016; 11:e0155930. [PMID: 27195739 PMCID: PMC4873249 DOI: 10.1371/journal.pone.0155930] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Accepted: 05/06/2016] [Indexed: 12/23/2022] Open
Abstract
Chinese herbs have long been used to treat allergic disease, but recently the development was greatly impeded by the lack of good methods to explore the mechanism of action. Here, we showed the effects of Chinese herb Radix Paeoniae alba were identified and characterized by a mast cell activation assay that involves electronic impedance readouts for dynamic monitoring of cellular responses to produce time-dependent cell responding profiles (TCRPs), and the anti-allergic activities were further confirmed with various conventional molecular and cell biology tools. We found Radix P. alba can dose-dependently inhibit TCPRs, and have anti-allergic function in vitro and in vivo. Radix P. alba suppressed mast cell degranulation not only inhibiting the translocation of granules to the plasma membrane, but also blocking membrane fusion and exocytosis; and that there may be other anti-allergic components in addition to paeoniflorin. Our results suggest that Radix P. alba regulated mast cell activation with multiple targets, and this approach is also suitable for discovering other mast cell degranulation-targeting Chinese herbs and their potential multi-target mechanisms.
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13
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Marmolino D, Foerch P, Atienzar FA, Staelens L, Michel A, Scheller D. Alpha synuclein dimers and oligomers are increased in overexpressing conditions in vitro and in vivo. Mol Cell Neurosci 2015; 71:92-101. [PMID: 26711807 DOI: 10.1016/j.mcn.2015.12.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Revised: 12/03/2015] [Accepted: 12/16/2015] [Indexed: 12/15/2022] Open
Abstract
Parkinson's disease is characterized by degeneration of dopaminergic neurons in the substantia nigra pars compacta along with the formation of intracellular fibrillar inclusions (Lewy bodies and Lewy neuritis), which are mainly composed of aggregated α-synuclein (ASYN). This latter is a 14 kDa protein that localizes to synaptic vesicles in nerve terminals and promotes soluble N-ethylmaleimide-sensitive factor attachment protein receptor complex assembly. We explored the monomeric and oligomeric state of ASYN in vitro in HEK293s and SH-SY5Y cell lines. In addition rats were injected in the substantia nigra with an Adeno associated virus carrying the human A53T mutation of ASYN (in vivo experiments). We show that human wild type ASYN as well as PD-linked mutations (A30P, E46K and A53T) in overexpressing conditions mostly exists in a monomeric state in equilibrium with dimeric forms. The monomer/dimer ratio is unaffected by PD-linked mutation. Furthermore, the A30P, E46K and A53T mutations overexpression strongly increased cell death compared to wild type ASYN. Taken together, our data suggest that ASYN dimers amount do not directly correlate to reduced cellular viability, suggesting a different role in protein function and induced pathology. Our data suggest that early ASYN neuro-pathogenic effects are probably mediated by other molecular processes than increased oligomerization alone.
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Affiliation(s)
- D Marmolino
- UCB Biopharma S.P.R.L., Neuroscience TA, Chemin du Foriest B-1420 Braine l'Alleud, Belgium.
| | - P Foerch
- UCB Biopharma S.P.R.L., Molecular Biology & Gene Expression, Discovery Research, Chemin du Foriest B-1420 Braine l'Alleud, Belgium
| | - F A Atienzar
- UCB Biopharma S.P.R.L., Non-Clinical Development, Chemin du Foriest B-1420 Braine l'Alleud, Belgium
| | - L Staelens
- UCB Biopharma S.P.R.L., Neuroscience TA, Chemin du Foriest B-1420 Braine l'Alleud, Belgium
| | - A Michel
- UCB Biopharma S.P.R.L., Neuroscience TA, Chemin du Foriest B-1420 Braine l'Alleud, Belgium
| | - D Scheller
- UCB Biopharma S.P.R.L., Neuroscience TA, Chemin du Foriest B-1420 Braine l'Alleud, Belgium
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Serrill JD, Wan X, Hau AM, Jang HS, Coleman DJ, Indra AK, Alani AWG, McPhail KL, Ishmael JE. Coibamide A, a natural lariat depsipeptide, inhibits VEGFA/VEGFR2 expression and suppresses tumor growth in glioblastoma xenografts. Invest New Drugs 2015; 34:24-40. [PMID: 26563191 DOI: 10.1007/s10637-015-0303-x] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 11/05/2015] [Indexed: 11/24/2022]
Abstract
Coibamide A is a cytotoxic lariat depsipeptide isolated from a rare cyanobacterium found within the marine reserve of Coiba National Park, Panama. Earlier testing of coibamide A in the National Cancer Institute in vitro 60 human tumor cell line panel (NCI-60) revealed potent anti-proliferative activity and a unique selectivity profile, potentially reflecting a new target or mechanism of action. In the present study we evaluated the antitumor activity of coibamide A in several functional cell-based assays and in vivo. U87-MG and SF-295 glioblastoma cells showed reduced migratory and invasive capacity and underwent G1 cell cycle arrest as, likely indirect, consequences of treatment. Coibamide A inhibited extracellular VEGFA secreted from U87-MG glioblastoma and MDA-MB-231 breast cancer cells with low nM potency, attenuated proliferation and migration of normal human umbilical vein endothelial cells (HUVECs) and selectively decreased expression of vascular endothelial growth factor receptor 2 (VEGFR2). We report that coibamide A retains potent antitumor properties in a nude mouse xenograft model of glioblastoma; established subcutaneous U87-MG tumors failed to grow for up to 28 days in response to 0.3 mg/Kg doses of coibamide A. However, the natural product was also associated with varied patterns of weight loss and thus targeted delivery and/or medicinal chemistry approaches will almost certainly be required to improve the toxicity profile of this unusual macrocycle. Finally, similarities between coibamide A- and apratoxin A-induced changes in cell morphology, decreases in VEGFR2 expression and macroautophagy signaling in HUVECs raise the possibility that both cyanobacterial natural products share a common mechanism of action.
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Affiliation(s)
- Jeffrey D Serrill
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR, 97331, USA
| | - Xuemei Wan
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR, 97331, USA
| | - Andrew M Hau
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR, 97331, USA
| | - Hyo Sang Jang
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR, 97331, USA
| | - Daniel J Coleman
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR, 97331, USA
| | - Arup K Indra
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR, 97331, USA
| | - Adam W G Alani
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR, 97331, USA
| | - Kerry L McPhail
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR, 97331, USA
| | - Jane E Ishmael
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, OR, 97331, USA.
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15
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Kiely M, Hodgins SJ, Merrigan BA, Tormey S, Kiely PA, O'Connor EM. Real-time cell analysis of the inhibitory effect of vitamin K2 on adhesion and proliferation of breast cancer cells. Nutr Res 2015; 35:736-43. [PMID: 26082424 DOI: 10.1016/j.nutres.2015.05.014] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 05/12/2015] [Accepted: 05/27/2015] [Indexed: 11/19/2022]
Abstract
Breast cancer is the most prevalent cancer type worldwide. Continued efforts to improve treatment strategies for patients with breast cancer will be instrumental in reducing the death rates associated with this disease. In particular, the triple-negative breast cancer subtype of breast cancer has no targeted therapy available so it is essential to continue to work on any potential therapies. Vitamin K (VK) is known for its essential role in the clotting cascade. The antitumor properties of VK derivatives have been reported in both hepatocellular carcinoma and glioblastoma. Our hypothesis was that menaquinone-4, the most common form of vitamin K2 (VK2), is an effective anticancer agent against breast cancer cell types. In this study, we used a novel impedance-based live cell monitoring platform (xCELLigence) to determine the effects of VK derivatives on the triple-negative breast cancer cell line, MDA-MB-231, and the HER2+ breast cancer cell line, MDA-MB-453. Cells were treated with varying concentrations of menaquinone-4 (VK2) previously reported to have an antiproliferative effect on human glioblastoma cells. After initial testing, these concentrations were adjusted to 100, 125, and 150 μmol/L. A significant dose-dependent, growth inhibitory effect was found when cells were treated at these concentrations. These effects were seen in both adhesion and proliferation phases and show a dramatic reduction in cell growth. Additional analysis of MDA-MB-231 cells treated with VK2 (100 μmol/L) in combination with a low-glucose nutrient media showed a further decrease in adhesion and viability. This is the first study of its kind showing the real-time effects of VK derivatives on breast cancer cells and suggests that dietary factors may be an important consideration for patients.
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Affiliation(s)
- Maeve Kiely
- Department of Life Sciences, University of Limerick, Limerick, Ireland; Materials and Surface Science Institute, University of Limerick, Limerick, Ireland; Stokes Institute, University of Limerick, Limerick, Ireland
| | - Spencer J Hodgins
- Graduate Entry Medical School, University of Limerick, Limerick, Ireland
| | - B Anne Merrigan
- Department of Surgery, University Hospital Limerick, Limerick, Ireland
| | - Shona Tormey
- Graduate Entry Medical School, University of Limerick, Limerick, Ireland; Department of Surgery, University Hospital Limerick, Limerick, Ireland
| | - Patrick A Kiely
- Department of Life Sciences, University of Limerick, Limerick, Ireland; Materials and Surface Science Institute, University of Limerick, Limerick, Ireland; Stokes Institute, University of Limerick, Limerick, Ireland
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Shi M, Shtraizent N, Polotskaia A, Bargonetti J, Matsui H. Impedimetric detection of mutant p53 biomarker-driven metastatic breast cancers under hyposmotic pressure. PLoS One 2014; 9:e99351. [PMID: 24937470 PMCID: PMC4060997 DOI: 10.1371/journal.pone.0099351] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Accepted: 05/13/2014] [Indexed: 11/18/2022] Open
Abstract
In cancer cells, the oncogenic mutant p53 (mtp53) protein is present at high levels and gain-of-function (GOF) activities with more expression of mtp53 proteins contribute to tumor growth and metastasis. Robust analytical approaches that probe the degree of metastasis of cancer cells in connection with the mtp53 activity will be extremely useful not only for establishing a better cancer prognosis but also understanding the fundamental mechanism of mtp53 oncogenic action. Here we assessed the influence of mtp53 in breast cancers to the mechanical property of breast cancer cells. Recently, ovarian and kidney cancer cell lines have been shown to have higher cellular elasticity as compared to normal cells assessed by monitoring the degree of deformation under hyposmotic pressure. To make fast detection in large scale, the impedance measurement was applied to monitor the swelling ratio of cells with time. The results showed that knockdown of mtp53 leads to decrease in cell swelling. In addition, by means of two types of impedimetric detection systems we consistently detected enhancement of impedance signal in mtp53-expressing breast cancer cells. Based on this observation we hypothesize that highly expressed mtp53 in metastatic mutant breast cancers can promote tumor progression by making cells more deformable and easier to spread out through extracellular matrix. The identification via the electric measurement can be accomplished within 10 minutes. All results in this report suggest that electric probing for the extent of the mtp53 expression of breast cancer cells may serve as a meaningful fingerprint for the cancer diagnostics, and this outcome will also have an important clinical implication for the development of mtp53-based targeting for tumor detection and treatment.
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Affiliation(s)
- Menglu Shi
- Department of Chemistry, Hunter College and the Graduate Center, City University of New York, New York, New York, United States of America
| | - Nataly Shtraizent
- Department of Biological Sciences Hunter College and the Graduate Center, City University of New York, New York, New York, United States of America
| | - Alla Polotskaia
- Department of Biological Sciences Hunter College and the Graduate Center, City University of New York, New York, New York, United States of America
| | - Jill Bargonetti
- Department of Biological Sciences Hunter College and the Graduate Center, City University of New York, New York, New York, United States of America
- * E-mail: (HM); (JB)
| | - Hiroshi Matsui
- Department of Chemistry, Hunter College and the Graduate Center, City University of New York, New York, New York, United States of America
- * E-mail: (HM); (JB)
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Zhang L, Ma L, Feng W, Zhang C, Sheng F, Zhang Y, Xu C, Dong G, Dong X, Xiao X, Yan D. Quality fluctuation detection of an herbal injection based on biological fingerprint combined with chemical fingerprint. Anal Bioanal Chem 2014; 406:5009-18. [DOI: 10.1007/s00216-014-7918-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2014] [Revised: 05/08/2014] [Accepted: 05/20/2014] [Indexed: 01/14/2023]
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18
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Frei R, Staedler D, Raja A, Franke R, Sasse F, Gerber-Lemaire S, Waser J. Total Synthesis and Biological Evaluation of Jerantinine E. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201305533] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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19
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Frei R, Staedler D, Raja A, Franke R, Sasse F, Gerber-Lemaire S, Waser J. Total Synthesis and Biological Evaluation of Jerantinine E. Angew Chem Int Ed Engl 2013; 52:13373-6. [DOI: 10.1002/anie.201305533] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Indexed: 11/07/2022]
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Evaluation of impedance-based label-free technology as a tool for pharmacology and toxicology investigations. BIOSENSORS-BASEL 2013; 3:132-56. [PMID: 25587404 PMCID: PMC4263586 DOI: 10.3390/bios3010132] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Revised: 02/15/2013] [Accepted: 02/27/2013] [Indexed: 12/23/2022]
Abstract
The use of label-free technologies based on electrical impedance is becoming more and more popular in drug discovery. Indeed, such a methodology allows the continuous monitoring of diverse cellular processes, including proliferation, migration, cytotoxicity and receptor-mediated signaling. The objective of the present study was to further assess the usefulness of the real-time cell analyzer (RTCA) and, in particular, the xCELLigence platform, in the context of early drug development for pharmacology and toxicology investigations. In the present manuscript, four cellular models were exposed to 50 compounds to compare the cell index generated by RTCA and cell viability measured with a traditional viability assay. The data revealed an acceptable correlation (ca. 80%) for both cell lines (i.e., HepG2 and HepaRG), but a lack of correlation (ca. 55%) for the primary human and rat hepatocytes. In addition, specific RTCA profiles (signatures) were generated when HepG2 and HepaRG cells were exposed to calcium modulators, antimitotics, DNA damaging and nuclear receptor agents, with a percentage of prediction close to 80% for both cellular models. In a subsequent experiment, HepG2 cells were exposed to 81 proprietary UCB compounds known to be genotoxic or not. Based on the DNA damaging signatures, the RTCA technology allowed the detection of ca. 50% of the genotoxic compounds (n = 29) and nearly 100% of the non-genotoxic compounds (n = 52). Overall, despite some limitations, the xCELLigence platform is a powerful and reliable tool that can be used in drug discovery for toxicity and pharmacology studies.
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Troubleshooting and deconvoluting label-free cell phenotypic assays in drug discovery. J Pharmacol Toxicol Methods 2013; 67:69-81. [PMID: 23340025 DOI: 10.1016/j.vascn.2013.01.004] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 12/10/2012] [Accepted: 01/04/2013] [Indexed: 01/04/2023]
Abstract
INTRODUCTION Central to drug discovery and development is to comprehend the target(s), potency, efficacy and safety of drug molecules using pharmacological assays. Owing to their ability to provide a holistic view of drug actions in native cells, label-free biosensor-enabled cell phenotypic assays have been emerging as new generation phenotypic assays for drug discovery. Despite the benefits associated with wide pathway coverage, high sensitivity, high information content, non-invasiveness and real-time kinetics, label-free cell phenotypic assays are often viewed to be a blackbox in the era of target-centric drug discovery. METHODS This article first reviews the biochemical and biological complexity of drug-target interactions, and then discusses the key characteristics of label-free cell phenotypic assays and presents a five-step strategy to troubleshooting and deconvoluting the label-free cell phenotypic profiles of drugs. RESULTS Drug-target interactions are intrinsically complicated. Label-free cell phenotypic signatures of drugs mirror the innate complexity of drug-target interactions, and can be effectively deconvoluted using the five-step strategy. DISCUSSION The past decades have witnessed dramatic expansion of pharmacological assays ranging from molecular to phenotypic assays, which is coincident with the realization of the innate complexity of drug-target interactions. The clinical features of a drug are defined by how it operates at the system level and by its distinct polypharmacology, ontarget, phenotypic and network pharmacology. Approaches to examine the biochemical, cellular and molecular mechanisms of action of drugs are essential to increase the efficiency of drug discovery and development. Label-free cell phenotypic assays and the troubleshooting and deconvoluting approach presented here may hold great promise in drug discovery and development.
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22
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Tran TD, Pham NB, Fechner G, Zencak D, Vu HT, Hooper JNA, Quinn RJ. Cytotoxic cyclic depsipeptides from the Australian marine sponge Neamphius huxleyi. JOURNAL OF NATURAL PRODUCTS 2012; 75:2200-2208. [PMID: 23215348 DOI: 10.1021/np3006474] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Three new cyclic depsipeptides, neamphamides B (2), C (3), and D (4), were isolated from the Australian sponge Neamphius huxleyi. The planar structural characterization of these molecules was elucidated using 2D NMR experiments and ESI-FTICR-MS(n). Their configurations were determined by Marfey's method and J-based NMR analysis. These new metabolites inhibited the growth of human cell lines (A549, HeLa, LNCaP, PC3, and NFF) with IC(50) values ranging from 88 to 370 nM. However, neamphamide D causes A549 cell proliferation at subcytotoxic doses and should be treated cautiously as a cytotoxic compound.
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Affiliation(s)
- Trong D Tran
- Eskitis Institute, Griffith University, Brisbane, Queensland 4111, Australia
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23
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Kustermann S, Boess F, Buness A, Schmitz M, Watzele M, Weiser T, Singer T, Suter L, Roth A. A label-free, impedance-based real time assay to identify drug-induced toxicities and differentiate cytostatic from cytotoxic effects. Toxicol In Vitro 2012; 27:1589-95. [PMID: 22954529 DOI: 10.1016/j.tiv.2012.08.019] [Citation(s) in RCA: 71] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2011] [Revised: 07/02/2012] [Accepted: 08/16/2012] [Indexed: 01/12/2023]
Abstract
Cell-based assays are key tools in drug safety assessment. However, they usually provide only limited information about time-kinetics of a toxic effect and implementing multiple measurements is often complex. To overcome these issues we established an impedance-based approach which is able to differentiate cytostatic from cytotoxic drugs by recording time-kinetics of compound-effects on cells. NIH 3T3 fibroblasts were seeded on xCELLigence® E-plates and impedance was continuously measured over 5 days. The obtained results reflected cytotoxicity and cell proliferation, as confirmed by neutral red uptake in vitro. Based on known toxicants, we established an algorithm able to discriminate cytostatic, cytotoxic and non-toxic compounds based on the shape of the impedance curves. Analyzing impedance curve patterns of additional 37 compounds allowed the identification and differentiation of these distinct effects as results correlated well with previous in vivo findings. We show that impedance-based real-time cell analysis is a convenient tool to characterize and discriminate effects of compounds on cells in a time-dependent and label-free manner. The presented impedance assay could be used to further characterize toxicities observed in vivo or in vitro. Due to the ease of performance it may also be a suitable screening tool.
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Affiliation(s)
- S Kustermann
- F. Hoffmann-La Roche Ltd., Grenzacherstrasse 124, Basel 4070, Switzerland.
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Sun M, Fu H, Cheng H, Cao Q, Zhao Y, Mou X, Zhang X, Liu X, Ke Y. A dynamic real-time method for monitoring epithelial barrier function in vitro. Anal Biochem 2012; 425:96-103. [DOI: 10.1016/j.ab.2012.03.010] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Revised: 03/08/2012] [Accepted: 03/16/2012] [Indexed: 02/07/2023]
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25
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Whole cell microtubule analysis by flow cytometry. Anal Biochem 2012; 420:26-32. [DOI: 10.1016/j.ab.2011.08.020] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2011] [Revised: 08/03/2011] [Accepted: 08/12/2011] [Indexed: 11/22/2022]
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Abstract
INTRODUCTION The need to improve drug research and development productivity continues to drive innovation in pharmacological assays. Technologies that can leverage the advantages of both molecular and phenotypic assays would hold great promise for discovery of new medicines. AREAS COVERED This article briefly reviews current label-free platforms for cell-based assays and is primarily focused on fundamental aspects of these assays using dynamic mass redistribution technology as an example. The article also presents strategies for relating label-free profiles to molecular modes of actions of drugs. EXPERT OPINION Emerging evidence suggests that label-free cellular assays are phenotypic in nature, yet permit molecular mechanistic deconvolution. Together with unique competency in throughput, sensitivity and pathway coverages, label-free cellular assays allow users to screen drugs against endogenous receptors in native cells (including disease relevant primary cells) and determine the molecular modes of action of drug molecules. However, there are challenges for label-free in both basic research and drug discovery: the deconvolution of the cellular and molecular mechanisms for the biosensor signatures of receptor-drug interactions, new methodologies for data analysis and the development of new biosensor technologies. These challenges will need to be met for the wide adoption of these assays in drug discovery.
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Affiliation(s)
- Ye Fang
- Biochemical Technologies, Science and Technology Division, Corning, Inc. , Corning, NY 14831 , USA
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27
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Mou X, Wan S, Li Y, Zhang S, Sun M, Liu F, Fu H, Zhang X, Liu H, Cao Q, Ke Y, Xiang C. Phenotypic pattern-based assay for dynamically monitoring host cellular responses to Salmonella infections. PLoS One 2011; 6:e26544. [PMID: 22073171 PMCID: PMC3207827 DOI: 10.1371/journal.pone.0026544] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Accepted: 09/28/2011] [Indexed: 12/12/2022] Open
Abstract
The interaction between mammalian host cells and bacteria is a dynamic process, and the underlying pathologic mechanisms are poorly characterized. Limited information describing the host-bacterial interaction is based mainly on studies using label-based endpoint assays that detect changes in cell behavior at a given time point, yielding incomplete information. In this paper, a novel, label-free, real-time cell-detection system based on electronic impedance sensor technology was adapted to dynamically monitor the entire process of intestinal epithelial cells response to Salmonella infection. Changes in cell morphology and attachment were quantitatively and continuously recorded following infection. The resulting impedance-based time-dependent cell response profiles (TCRPs) were compared to standard assays and showed good correlation and sensitivity. Biochemical assays further suggested that TCRPs were correlated with cytoskeleton-associated morphological dynamics, which can be largely attenuated by inhibitions of actin and microtubule polymerization. Collectively, our data indicate that cell-electrode impedance measurements not only provide a novel, real-time, label-free method for investigating bacterial infection but also help advance our understanding of host responses in a more physiological and continuous manner that is beyond the scope of current endpoint assays.
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Affiliation(s)
- Xiaozhou Mou
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Institute of Molecular Pathology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
- Molecular Diagnosis Division, Zhejiang-California International Nanosystems Institute (ZCNI), Hangzhou, China
| | - Shuying Wan
- Institute of Molecular Pathology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Yifei Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Shanshan Zhang
- Institute of Molecular Pathology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Mingjiao Sun
- Institute of Molecular Pathology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Fanglong Liu
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Huiying Fu
- Institute of Molecular Pathology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Xue Zhang
- Institute of Molecular Pathology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Haiying Liu
- State Key Laboratory for Molecular Virology and Genetic Engineering, Institute of Pathogen Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Qian Cao
- Institute of Molecular Pathology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
| | - Yuehai Ke
- Institute of Molecular Pathology and Program in Molecular Cell Biology, Zhejiang University School of Medicine, Hangzhou, China
- * E-mail: (YK); (CX)
| | - Charlie Xiang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
- Molecular Diagnosis Division, Zhejiang-California International Nanosystems Institute (ZCNI), Hangzhou, China
- * E-mail: (YK); (CX)
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28
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Fu H, Fu W, Sun M, Shou Q, Zhai Y, Cheng H, Teng L, Mou X, Li Y, Wan S, Zhang S, Xu Q, Zhang X, Wang J, Zhu J, Wang X, Xu X, Lv G, Jin L, Guo W, Ke Y. Kinetic Cellular Phenotypic Profiling: Prediction, Identification, and Analysis of Bioactive Natural Products. Anal Chem 2011; 83:6518-26. [DOI: 10.1021/ac201670e] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Huiying Fu
- Program in Molecular Cell Biology, Department of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Wenqing Fu
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Mingjiao Sun
- Program in Molecular Cell Biology, Department of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Qiyang Shou
- Zhejiang University of Traditional Chinese Medicine, Hangzhou 310053, China
| | - Yunyan Zhai
- Program in Molecular Cell Biology, Department of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Hongqiang Cheng
- Program in Molecular Cell Biology, Department of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Li Teng
- Program in Molecular Cell Biology, Department of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Xiaozhou Mou
- Program in Molecular Cell Biology, Department of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Yanwei Li
- Program in Molecular Cell Biology, Department of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Shuying Wan
- Program in Molecular Cell Biology, Department of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Shanshan Zhang
- Program in Molecular Cell Biology, Department of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Qinqin Xu
- Program in Molecular Cell Biology, Department of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Xue Zhang
- Program in Molecular Cell Biology, Department of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Jiucun Wang
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Jenny Zhu
- ACEA Biosciences Incorporated, San Diego, California 92126, United States
| | - Xiaobo Wang
- ACEA Biosciences Incorporated, San Diego, California 92126, United States
| | - Xiao Xu
- ACEA Biosciences Incorporated, San Diego, California 92126, United States
| | - Guiyuan Lv
- Zhejiang University of Traditional Chinese Medicine, Hangzhou 310053, China
| | - Li Jin
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
| | - Wensheng Guo
- State Key Laboratory of Genetic Engineering, School of Life Sciences, Fudan University, Shanghai 200433, China
- Center for Clinical Epidemiology and Biostatistics, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Yuehai Ke
- Program in Molecular Cell Biology, Department of Basic Medical Sciences, Zhejiang University School of Medicine, Hangzhou 310058, China
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Abstract
Label-free biosensors for studying cell biology have finally come of age. Recent developments have advanced the biosensors from low throughput and high maintenance research tools to high throughput and low maintenance screening platforms. In parallel, the biosensors have evolved from an analytical tool solely for molecular interaction analysis to powerful platforms for studying cell biology at the whole cell level. This paper presents historical development, detection principles, and applications in cell biology of label-free biosensors. Future perspectives are also discussed.
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Affiliation(s)
- Ye Fang
- Biochemical Technologies, Science and Technology Division, Corning Inc., Corning, NY 14831, USA
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