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Sato VH, Sungthong B, Nuamnaichati N, Rinthong PO, Mangmool S, Sato H. In Vivo and In Vitro Evidence for the Antihyperuricemic, Anti-inflammatory and Antioxidant Effects of a Traditional Ayurvedic Medicine, Triphala. Nat Prod Commun 2017. [DOI: 10.1177/1934578x1701201028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
The objectives of the present study were to demonstrate the antihyperuricemic effect of triphala, a formulation of traditional Ayurvedic medicine, in potassium oxonate-induced hyperuricemic mice in vivo, and to examine its inhibitor effects on xanthine oxidase (XOD), inflammatory mediators and DPPH radicals in vitro. The water extract of triphala was determined to contain the total phenolics and total flavonoids of 317.6 ± 9.2 mg GAE/g and 7.73 ± 0.26 mg QE/g, respectively. Oral administrations of triphala significantly reduced the plasma uric acid levels of potassium oxonate-induced hyperuricemic mice at doses of 1,000 and 1,500 mg/kg, as compared with control ( p<0.05). Moreover, both doses of triphala treatments markedly inhibited the formation of uric acid due to inhibition of XOD activity in liver homogenates extracted from the hyperuricemic mice by about 70-80%. Lineweaver-Burk analysis of enzyme-kinetic data showed that triphala exhibited non-competitive inhibition on XOD activity in vitro with an inhibitory constant (Ki) of 590 μg/mL. Furthermore, triphala significantly suppressed the mRNA expressions of COX-II, TNF-α and iNOS in LPS-stimulated RAW 264.7 cells, as compared with control ( p <0.05), and decreased the expression of TGF-β. IC50 values for inhibition of DPPH radical formation was calculated to be 21.9 ± 2.50 μg/mL. Antioxidant activities of triphala were determined to be 0.81 ± 0.07 g TEAC/g and 6.78 ± 0.29 mmol/100g, respectively, as assessed by ABTS and FRAP assays. In conclusion, this study provided in vivo and in vitro mechanistic evidence for the antihyperuricemic, antioxidative and anti-inflammatory effects of triphala for the first time, rationalizing its therapeutic usage for the treatment of hyperuricemia of gout.
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Affiliation(s)
| | - Bunleu Sungthong
- Pharmaceutical Chemistry and Natural Products Research Unit, Faculty of Pharmacy, Mahasarakham University, Maha sarakham, 44150, Thailand
| | - Narawat Nuamnaichati
- Department Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok, 10400, Thailand
| | - Prasob-orn Rinthong
- Pharmaceutical Chemistry and Natural Products Research Unit, Faculty of Pharmacy, Mahasarakham University, Maha sarakham, 44150, Thailand
| | - Supachoke Mangmool
- Department Pharmacology, Faculty of Pharmacy, Mahidol University, Bangkok, 10400, Thailand
| | - Hitoshi Sato
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmacy, Showa University, Tokyo, 142-8555, Japan
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252
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Sreeranganathan M, Uthaman S, Sarmento B, Mohan CG, Park IK, Jayakumar R. In vivo evaluation of cetuximab-conjugated poly(γ-glutamic acid)-docetaxel nanomedicines in EGFR-overexpressing gastric cancer xenografts. Int J Nanomedicine 2017; 12:7165-7182. [PMID: 29033568 PMCID: PMC5628680 DOI: 10.2147/ijn.s143529] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Epidermal growth factor receptor (EGFR), upregulated in gastric cancer patients, is an oncogene of interest in the development of targeted cancer nanomedicines. This study demonstrates in silico modeling of monoclonal antibody cetuximab (CET MAb)-conjugated docetaxel (DOCT)-loaded poly(γ-glutamic acid) (γ-PGA) nanoparticles (Nps) and evaluates the in vitro/in vivo effects on EGFR-overexpressing gastric cancer cells (MKN-28). Nontargeted DOCT-γ-PGA Nps (NT Nps: 110±40 nm) and targeted CET MAb-DOCT-γ-PGA Nps (T Nps: 200±20 nm) were prepared using ionic gelation followed by 1-Ethyl-3-(3-dimethyl aminopropyl)carbodiimide–N-Hydoxysuccinimide (EDC–NSH) chemistry. Increased uptake correlated with enhanced cytotoxicity induced by targeted Nps to EGFR +ve MKN-28 compared with nontargeted Nps as evident from MTT and flow cytometric assays. Nanoformulated DOCT showed a superior pharmacokinetic profile to that of free DOCT in Swiss albino mice, indicating the possibility of improved therapeutic effect in the disease model. Qualitative in vivo imaging showed early and enhanced tumor targeted accumulation of CET MAb-DOCT-γ-PGA Nps in EGFR +ve MKN-28–based gastric cancer xenograft, which exhibited efficient arrest of tumor growth compared with nontargeted Nps and free DOCT. Thus, actively targeted CET MAb-DOCT-γ-PGA Nps could be developed as a substitute to conventional nonspecific chemotherapy, and hence could become a feasible strategy for cancer therapy for EGFR-overexpressing gastric tumors.
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Affiliation(s)
| | - Saji Uthaman
- Department of Biomedical Science, BK21 PLUS Center for Creative Biomedical Scientists, Chonnam National University Medical School, Gwangju, Republic of Korea
| | - Bruno Sarmento
- I3S - Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal.,INEB - Instituto de Engenharia Biomédica, University of Porto, Porto, Portugal.,CESPU, Instituto de Investigação e Formação Avançada em Ciências e Tecnologias da Saúde, Instituto Universitário de Ciências da Saúde, Gandra, Portugal
| | | | - In-Kyu Park
- Centre for Nanosciences and Molecular Medicine, Amrita University, Kochi, India
| | - Rangasamy Jayakumar
- Department of Biomedical Science, BK21 PLUS Center for Creative Biomedical Scientists, Chonnam National University Medical School, Gwangju, Republic of Korea
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253
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Trivedi MK, Mondal SC, Gangwar M, Jana S. Immunomodulatory potential of nanocurcumin-based formulation. Inflammopharmacology 2017; 25:609-619. [PMID: 28921388 DOI: 10.1007/s10787-017-0395-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2017] [Accepted: 09/01/2017] [Indexed: 12/15/2022]
Abstract
Vitamins, minerals, and nanocurcumin play a substantial role in various nutraceutical/pharmaceutical formulations that are widely used in therapeutics, cosmetics, and dietary supplements. The current study aimed to investigate the comparative in vitro immunomodulatory effect of a novel nanocurcumin-based formulation with curcumin in LPS-induced cytokine expression, NK cells' activity, and phagocytosis. The proinflammatory cytokines (TNF-α, IL-1β, and MIP-1α) and NK cells' activity were measured in cell supernatants using ELISA assay; however, phagocytosis activity was performed using colorimetric analysis. The chemical characterization of novel nanocurcumin-based formulation using LC-MS (R t 19.02 min) and mass spectra analysis (m/z 369.04) confirmed the presence of the curcumin in highest peak concentration. MTT assay in three tested cell-lines showed that the formulation was found non-toxic at all the tested concentrations. The expression of TNF-α, IL-1β, and MIP-1α in splenocytes was significantly (p ≤ 0.001) inhibited. Besides, the NK cells' activity and phagocytosis (macrophage) were increased significantly (p ≤ 0.001). Overall, the promising results of this study indicated the significant immunomodulatory effect of nanocurcumin-based formulation compared to the curcumin, which could be used against various inflammatory disorders such as allergy, asthma, autoimmune diseases, coeliac disease, inflammatory bowel disease, etc.
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Affiliation(s)
| | | | - Mayank Gangwar
- Trivedi Science Research Laboratory Pvt. Ltd., Bhopal, Madhya Pradesh, India
| | - Snehasis Jana
- Trivedi Science Research Laboratory Pvt. Ltd., Bhopal, Madhya Pradesh, India.
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254
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Huang MB, Gonzalez RR, Lillard J, Bond VC. Secretion modification region-derived peptide blocks exosome release and mediates cell cycle arrest in breast cancer cells. Oncotarget 2017; 8:11302-11315. [PMID: 28076321 PMCID: PMC5355266 DOI: 10.18632/oncotarget.14513] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2016] [Accepted: 12/24/2016] [Indexed: 01/27/2023] Open
Abstract
PURPOSE Discovery and development of a novel anticancer PEG-SMR-Clu peptide to prevent breast cancer metastasis. How breast cancer cells and primary mammary epithelial cells interact and communicate with each other to promote tumorigenesis and how to prevent tumor metastasis has long been a concern of researchers. Cancer cells secrete exosomes containing proteins and RNA. These factors can influence tumor development by directly targeting cancer cells and tumor stroma. In this study, we determined the effects of a peptide as an inhibitor of exosome secretion on breast tumors. We developed a peptide derived from the Secretion Modification Region (SMR) of HIV-1 Nef protein that was modified with PEG on the N-terminus and with a Clusterin (Clu)-binding peptide on the C-terminus. Attachment of PEG to the SMR peptide, termed PEGylation, offers improved water solubility and stability as well as reduced clearance through the kidneys, leading to a longer circulation time. The 12-mer Clu-binding peptide plays multiple roles in tumor development and metastasis. The Clu peptide can be detected by antibody in vivo, thus it has the potential to be used to monitor tumor status and treatment efficacy in animal studies and eventually in cancer patients. RESULTS PEG-SMRwt-Clu and PEG-SMRwt peptides inhibited the growth of both of MCF-7 (estrogen responsive, ER+) and MDA-MD-231 (estrogen non-responsive, ER-) human breast cancer cells in a dose and time-dependent manner, without inducing cytotoxic effects. The SMRwt peptide, combined with paclitaxel, induced G2/M phase cell cycle arrest on MCF-7 and MDA-MB-231 cells but did not promote apoptosis. PEG-SMRwt-Clu peptide treatment blocked exosome release from both MCF-7 and MDA-MB-231 cells. This effect was blocked by knockdown of the chaperone protein mortalin by either antibody or siRNA. MATERIALS AND METHODS MCF-7 and MDA-MB-231 breast tumor cells were treated with PEG-SMR-Clu peptide alone and in combination with paclitaxel and cisplatin. Cell proliferation and viabilty were determined via cell cycle analysis using Cellometer imaging cytometry, Annexin V and MTT assays. The effects of the PEG-SMR-Clu peptide on tumor exosome release were determined by testing isolated exosome fractions, for (i) expression of CD63 and Alix proteins by Western blotting, (ii) NanoSight nanoparticle tracking analysis (NTA 10) to measure exosomes size and concentration, and (iii) measurement of acetylcholinesterase (AchE) for exosome specific enzyme activity. CONCLUSIONS PEG-SMRwt-CLU peptides inhibited the growth of human breast cancer cells and blocked tumor exosome release in vitro. The peptide alone did not cause increased cytotoxicity or apoptosis induction, but did cause cell cycle G2/M phase arrest in both estrogen responsive and non-responsive breast cancer cells. These data suggest a potential therapeutic value of SMR to prevent breast cancer metastasis and as an adjuvant for the chemotherapeutic treatment of human breast cancer.
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Affiliation(s)
- Ming-Bo Huang
- Department of Microbiology, Biochemistry, and Immunology, Morehouse School of Medicine, Atlanta, Georgia, 30310, USA
| | - Ruben R Gonzalez
- Department of Microbiology, Biochemistry, and Immunology, Morehouse School of Medicine, Atlanta, Georgia, 30310, USA
| | - James Lillard
- Department of Microbiology, Biochemistry, and Immunology, Morehouse School of Medicine, Atlanta, Georgia, 30310, USA
| | - Vincent C Bond
- Department of Microbiology, Biochemistry, and Immunology, Morehouse School of Medicine, Atlanta, Georgia, 30310, USA
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255
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Sun X, Gong H, Li D, Dong L, Zhao M, Wan R, Gu H. Ag+ implantation induces mechanical properties, cell adhesion and antibacterial effects of TiN/Ag multilayers in vitro. Nanomedicine (Lond) 2017; 12:2257-2268. [DOI: 10.2217/nnm-2017-0087] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: This study aims to investigate the effect of Ag+ implantation dose on the structure, hardness, adhesion strength, friction resistance, cell adhesion and antibacterial effects of TiN/Ag multilayers. Methods: Nanoscale TiN/Ag multilayers were deposited on Ti–6Al–4V substrates using multiarc ion plating. The multilayers were then implanted by Ag ions. Results: A distinct multilayer structure and large titanium nitride grains with better (111) crystallinity were proved. The hardness and elastic modulus of the multilayer reached 32.2 and 318.9 GPa, respectively. The largest critical load was 32.5 mN, and the minimum friction coefficient was 0.092. The mechanical properties, the cell proliferation and antibacterial properties of the multilayers with Ag+ implantation were better than those without Ag+ implantation. Conclusion: Our results indicate that a dose of 1 × 1017 ions/cm2 induced an improvement in crystallinity, mechanical properties, as well as preferable cell adhesion and antibacterial effects.
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Affiliation(s)
- Xiuhua Sun
- College of Physics & Materials Science, Tianjin Normal University, Tianjin 300387, China
- Tianjin International Joint Research Centre of Surface Technology for Energy Storage Materials, Tianjin 300387, China
| | - Huanhuan Gong
- College of Physics & Materials Science, Tianjin Normal University, Tianjin 300387, China
- Tianjin International Joint Research Centre of Surface Technology for Energy Storage Materials, Tianjin 300387, China
| | - Dejun Li
- College of Physics & Materials Science, Tianjin Normal University, Tianjin 300387, China
- Tianjin International Joint Research Centre of Surface Technology for Energy Storage Materials, Tianjin 300387, China
| | - Lei Dong
- College of Physics & Materials Science, Tianjin Normal University, Tianjin 300387, China
- Tianjin International Joint Research Centre of Surface Technology for Energy Storage Materials, Tianjin 300387, China
| | - Mengli Zhao
- College of Physics & Materials Science, Tianjin Normal University, Tianjin 300387, China
- Tianjin International Joint Research Centre of Surface Technology for Energy Storage Materials, Tianjin 300387, China
| | - Rongxin Wan
- Tianjin Institute of Urological Surgery, Tianjin Medical University, Tianjin 300070, China
| | - Hanqing Gu
- Tianjin Institute of Urological Surgery, Tianjin Medical University, Tianjin 300070, China
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256
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Kaur K, Kaur J, Kumar R, Mehta SK. Formulation and physiochemical study of α-tocopherol based oil in water nanoemulsion stabilized with non toxic, biodegradable surfactant: Sodium stearoyl lactate. ULTRASONICS SONOCHEMISTRY 2017; 38:570-578. [PMID: 27566966 DOI: 10.1016/j.ultsonch.2016.08.026] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 08/19/2016] [Accepted: 08/19/2016] [Indexed: 05/16/2023]
Abstract
The unique properties such as high optical clarity, stability and enhanced bioavailability of nanoemulsion make them useful for food, cosmetic and pharmaceutical industries. In this work, sodium stearoyl lactate and Tween 80 surfactants were collectively used to fabricate alpha tocopherol based oil in water nanoemulsion using high energy ultrasonication method. The spherical nature of pure and drug loaded nanoemulsion has been confirmed with transmission electron microscopy (TEM). The influence of pH, dilution, surfactant concentration and ionic strength on average particle size of pure and nutraceutical (benzylisothiocyanate and curcumin) encapsulated emulsion was examined. The prepared emulsion exhibited good stability up to 90days in salt solution (50-200mM) and different pH conditions. The cumulative release % of benzylisothiocyanate and curcumin was found to be 50.29% in 36h and 89.15% in 150h respectively. The antioxidant activity of pure, benzylisothiocyanate, curcumin and cocktail (benzylisothiocyanate and curcumin) nanoemulsion was calculated with 2,2-diphenyl-1-picrylhydrazyl radical. The IC50 value of different antioxidant showed that benzylisothiocyanate nanoemulsion acted as better antioxidant as compared to pure and curcumin encapsulated nanoemulsion. Also the cell viability of pure nanoemulsion was found to be 24% on hep G2 cell. The effect of UV light irradiation on curcumin and benzylisothiocyanate stability was carried out in different solvent conditions (water/ethanol and nanoemulsion). The degradation of curcumin by the impact of UV light was successfully controlled by trapping in NEm.
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Affiliation(s)
- Khushwinder Kaur
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India.
| | - Jaspreet Kaur
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - Raj Kumar
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
| | - S K Mehta
- Department of Chemistry and Centre for Advanced Studies in Chemistry, Panjab University, Chandigarh 160014, India
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257
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Joo JC, Hwang JH, Jo E, Kim YR, Kim DJ, Lee KB, Park SJ, Jang IS. Cordycepin induces apoptosis by caveolin-1-mediated JNK regulation of Foxo3a in human lung adenocarcinoma. Oncotarget 2017; 8:12211-12224. [PMID: 28099944 PMCID: PMC5355338 DOI: 10.18632/oncotarget.14661] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 12/27/2016] [Indexed: 11/29/2022] Open
Abstract
Forkhead transcription factor (Foxo3a) is a downstream effector of JNK-induced tumor suppression. However, it is not clear whether the caveolin-1 (CAV1)-mediated JNK/Foxo3a pathway is involved in cancer cell apoptosis. We found that cordycepin upregulates CAV1 expression, which was accompanied by JNK phosphorylation (p-JNK) and subsequent Foxo3a translocation into the nucleus, resulting in the upregulation of Bax protein expression. Furthermore, we found that CAV1 overexpression upregulated p-JNK, whereas CAV1 siRNA downregulated p-JNK. Additionally, SP600125, a specific JNK inhibitor, significantly increased Foxo3a phosphorylation, which downregulated Foxo3a translocation into the nucleus, indicating that CAV1 mediates JNK regulation of Foxo3a. Foxo3a siRNA downregulated Bax protein and attenuated A549 apoptosis, indicating that the CAV1-mediated JNK/Foxo3a pathway induces the apoptosis of A549 lung cancer cells. Cordycepin significantly decreased tumor volume in nude mice. Taken together, these results indicate that cordycepin promotes CAV1 upregulation to enhance JNK/Foxo3a signaling pathway activation, inducing apoptosis in lung cancer cells, and support its potential as a therapeutic agent for lung cancer.
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Affiliation(s)
- Jong Cheon Joo
- Department of Sasang Constitutional Medicine, Wonkwang University, Iksan, 54538, Republic of Korea
| | - Jung Hoo Hwang
- College of Medicine, Chung-Ang University, Seoul 156-756, Republic of Korea
| | - Eunbi Jo
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea
| | - Young-Rang Kim
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea
| | - Dae Joon Kim
- Department of Biomedical Sciences, School of Medicine, University of Texas Rio Grande Valley, Edinburg, TX 78539, USA
| | - Kyung-Bok Lee
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea
| | - Soo Jung Park
- Department of Sasang Constitutional Medicine, Woosuk University, Wanju, Jeonbuk, 55338, Republic of Korea
| | - Ik-Soon Jang
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea
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258
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Alasvand N, Saeidifar M, Saboury AA, Mozafari M. Controllable synthesis and characterisation of palladium (II) anticancer complex-loaded colloidal gelatin nanoparticles as a novel sustained-release delivery system in cancer therapy. IET Nanobiotechnol 2017; 11:591-596. [PMID: 28745294 PMCID: PMC8676265 DOI: 10.1049/iet-nbt.2016.0164] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 12/01/2016] [Accepted: 01/13/2017] [Indexed: 12/16/2022] Open
Abstract
Over the past few years, there have been several attempts to deliver anticancer drugs into the body. It has been shown that compared to other available carriers, colloidal gelatin nanoparticles (CGNPs) have distinct properties due to their exceptional physico-chemical and biological characteristics. In this study, a novel water-soluble palladium (II) anticancer complex was first synthesised, and then loaded into CGNPs. The CGNPs were synthesised through a two-step desolvation method with an average particle size of 378 nm. After confirming the stability of the drug in the nanoparticles, the drug-loaded CGNPs were tested for in vitro cytotoxicity against human breast cancer cells. The results showed that the average drug encapsulating efficiency and drug loading of CGNPs were 64 and 10 ± 2.1% (w/w), respectively. There was a slight shift to higher values of cumulative release, when the samples were tested in lower pH values. In addition, the in vitro cytotoxicity test indicated that the number of growing cells significantly decreased after 48 h in the presence of different concentrations of drug. The results also demonstrated that the released drug could bind to DNA by a static mechanism at low concentrations (0.57 µM) on the basis of hydrophobic and hydrogen binding interactions.
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Affiliation(s)
- Neda Alasvand
- Bioengineering Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), P.O. Box 14155-4777, Tehran, Iran
| | - Maryam Saeidifar
- Bioengineering Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), P.O. Box 14155-4777, Tehran, Iran
| | - Ali Akbar Saboury
- Institute of Biochemistry and Biophysics (IBB), University of Tehran, Tehran, Iran
| | - Masoud Mozafari
- Bioengineering Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), P.O. Box 14155-4777, Tehran, Iran.
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259
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Zhu S, Luo H, Liu H, Ha Y, Mays ER, Lawrence RE, Winkelmann E, Barrett AD, Smith SB, Wang M, Wang T, Zhang W. p38MAPK plays a critical role in induction of a pro-inflammatory phenotype of retinal Müller cells following Zika virus infection. Antiviral Res 2017; 145:70-81. [PMID: 28739278 DOI: 10.1016/j.antiviral.2017.07.012] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 07/19/2017] [Accepted: 07/21/2017] [Indexed: 01/17/2023]
Abstract
Zika virus (ZIKV) infection has been associated with ocular abnormalities such as chorioretinal atrophy, optic nerve abnormalities, posterior uveitis and idiopathic maculopathy. Yet our knowledge about ZIKV infection in retinal cells and its potential contribution to retinal pathology is still very limited. Here we found that primary Müller cells, the principal glial cells in the retina, expressed a high level of ZIKV entry cofactor AXL gene and were highly permissive to ZIKV infection. In addition, ZIKV-infected Müller cells exhibited a pro-inflammatory phenotype and produced many inflammatory and growth factors. While a number of inflammatory signaling pathways such as ERK, p38MAPK, NF-κB, JAK/STAT3 and endoplasmic reticulum stress were activated after ZIKV infection, inhibition of p38MAPK after ZIKV infection most effectively blocked ZIKV-induced inflammatory and growth molecules. In comparison to ZIKV, Dengue virus (DENV), another Flavivirus infected Müller cells more efficiently but induced much lower pro-inflammatory responses. These data suggest that Müller cells play an important role in ZIKV-induced ocular pathology by induction of inflammatory and growth factors in which the p38MAPK pathway has a central role. Blocking p38MAPK may provide a novel approach to control ZIKV-induced ocular inflammation.
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Affiliation(s)
- Shuang Zhu
- Department of Ophthalmology and Visual Sciences, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Huanle Luo
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Hua Liu
- Department of Ophthalmology and Visual Sciences, University of Texas Medical Branch, Galveston, TX, 77555, USA; Center for Biomedical Engineering, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Yonju Ha
- Department of Ophthalmology and Visual Sciences, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Elizabeth R Mays
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Ryan E Lawrence
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Evandro Winkelmann
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Alan D Barrett
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA; Department of Pathology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Sylvia B Smith
- Cellular Biology and Anatomy, Augusta University, Augusta, GA, 30912, USA
| | - Min Wang
- FutraTech Inc., San Diego, CA, 92121, USA
| | - Tian Wang
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, 77555, USA.
| | - Wenbo Zhang
- Department of Ophthalmology and Visual Sciences, University of Texas Medical Branch, Galveston, TX, 77555, USA; Institute for Human Infections and Immunity, University of Texas Medical Branch, Galveston, TX, 77555, USA; Neuroscience and Cell Biology, University of Texas Medical Branch, Galveston, TX, 77555, USA.
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260
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Akanda MR, Kim IS, Ahn D, Tae HJ, Tian W, Nam HH, Choo BK, Park BY. In Vivo and In Vitro Hepatoprotective Effects of Geranium koreanum Methanolic Extract via Downregulation of MAPK/Caspase-3 Pathway. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE : ECAM 2017; 2017:8137627. [PMID: 28757890 PMCID: PMC5516716 DOI: 10.1155/2017/8137627] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 06/05/2017] [Indexed: 12/13/2022]
Abstract
Geranium koreanum (GK) is an indigenous Chinese herbal medicine widely used for the treatment of various inflammation and liver disorders. However, the exact mechanism of action of GK remains unknown. This study aimed to investigate the protective effect and related molecular mechanism of GK on NaAsO2-induced cytotoxicity in HepG2 cells and liver damage in mice. The cytoprotective role of GK was assessed on HepG2 cells using MTT assay. Oxidative stress and lactate dehydrogenase levels were measured with ROS and LDH assay. Histopathology and serum enzymes levels were estimated. The molecular mechanism was evaluated by qPCR and immunoblotting to ensure the hepatoprotective role of GK against NaAsO2 intoxication in mice. We found cotreatment with GK significantly attenuated NaAsO2-induced cell viability loss, intracellular ROS, and LDH release. Hepatic histopathology and serum biochemical parameters, ALT, and AST were notably improved by cotreatment with GK. Beside, GK markedly altered both mRNA and protein expression level of MAPK. The proapoptotic and antiapoptotic protein Bax/Bcl-2 ratio was significantly regulated by GK. Moreover, GK remarkably suppressed the postapoptotic transcription protein cleaved caspase-3 expression. The present study reveals that GK possesses hepatoprotective activity which is probably involved in the modulation of the MAPK/caspase-3 pathway.
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Affiliation(s)
- Md Rashedunnabi Akanda
- College of Veterinary Medicine and Biosafety Research Institute, Chonbuk National University, Iksan 54596, Republic of Korea
- Department of Pharmacology and Toxicology, Sylhet Agricultural University, Sylhet 3100, Bangladesh
| | - In-Shik Kim
- College of Veterinary Medicine and Biosafety Research Institute, Chonbuk National University, Iksan 54596, Republic of Korea
| | - Dongchoon Ahn
- College of Veterinary Medicine and Biosafety Research Institute, Chonbuk National University, Iksan 54596, Republic of Korea
| | - Hyun-Jin Tae
- College of Veterinary Medicine and Biosafety Research Institute, Chonbuk National University, Iksan 54596, Republic of Korea
| | - Weishun Tian
- College of Veterinary Medicine and Biosafety Research Institute, Chonbuk National University, Iksan 54596, Republic of Korea
| | - Hyeon-Hwa Nam
- Department of Crop Science & Biotechnology, Chonbuk National University, Jeonju 54896, Republic of Korea
| | - Byung-Kil Choo
- Department of Crop Science & Biotechnology, Chonbuk National University, Jeonju 54896, Republic of Korea
| | - Byung-Yong Park
- College of Veterinary Medicine and Biosafety Research Institute, Chonbuk National University, Iksan 54596, Republic of Korea
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261
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Aqueous extract of Launaea acanthodes induces glutamate uptake and GABA release in astrocyte cell culture via a ROS scavenging mediated process. J Chem Neuroanat 2017; 82:1-4. [DOI: 10.1016/j.jchemneu.2017.02.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 02/22/2017] [Indexed: 11/18/2022]
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Wu M, Lian B, Deng Y, Feng Z, Zhong C, Wu W, Huang Y, Wang L, Zu C, Zhao X. Resveratrol-loaded glycyrrhizic acid-conjugated human serum albumin nanoparticles wrapping resveratrol nanoparticles: Preparation, characterization, and targeting effect on liver tumors. J Biomater Appl 2017; 32:191-205. [PMID: 28610486 DOI: 10.1177/0885328217713357] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
In this study, glycyrrhizic acid-conjugated human serum albumin nanoparticles wrapping resveratrol nanoparticles were prepared to establish a tumor targeting nano-sized drug delivery system. Glycyrrhizic acid was coupled to human serum albumin, and resveratrol was encapsulated in glycyrrhizic acid-conjugated human serum albumin by high-pressure homogenization emulsification. The average particle size of sample nanoparticles prepared under the optimal conditions was 108.1 ± 5.3 nm with a polydispersity index (PDI) of 0.001, and the amount of glycyrrhizic acid coupled with human serum albumin was 112.56 µg/mg. The drug encapsulation efficiency and drug loading efficiency were 83.6 and 11.5%, respectively. The glycyrrhizic acid-conjugated human serum albumin nanoparticles wrapping resveratrol nanoparticles were characterized through laser light scattering, scanning electron microscopy, Fourier-transform infrared spectroscopy, X-ray diffraction, differential scanning calorimetry, thermogravimetric analyses, and gas chromatography. The characterization results showed that resveratrol in glycyrrhizic acid-conjugated human serum albumin nanoparticles wrapping resveratrol nanoparticles existed in amorphous state and the residual amounts of chloroform and methanol in nanoparticles were separately less than the international conference on harmonization (ICH) limit. The in vitro drug-release study showed that the nanoparticles released the drug slowly and continuously. The inhibitory rate of glycyrrhizic acid-conjugated human serum albumin nanoparticles wrapping resveratrol nanoparticles was measured using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-2 H-tetrazolium bromide method. The IC50 values of glycyrrhizic acid-conjugated human serum albumin nanoparticles wrapping resveratrol nanoparticles and resveratrol were 62.5 and 95.5 µg/ml, respectively. The target ability of glycyrrhizic acid-conjugated human serum albumin nanoparticles wrapping resveratrol nanoparticles for HepG2 cells was evaluated using fluorescence-modified albumin techniques. The uptake rate of glycyrrhizic acid-conjugated human serum albumin nanoparticles wrapping resveratrol nanoparticles was higher than that of pure resveratrol and increased with increased nanoparticles concentration. The in vivo body distribution of glycyrrhizic acid-conjugated human serum albumin nanoparticles wrapping resveratrol nanoparticles labeled with the near-infrared fluorophore Cy5 was monitored in H22 tumor-bearing mice through near-infrared fluorescence imaging systems. Glycyrrhizic acid-conjugated human serum albumin nanoparticles wrapping resveratrol nanoparticles exhibited effective target orientation to liver tumor and sustained-release property.
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Affiliation(s)
- Mingfang Wu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China
| | - Bolin Lian
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China
| | - Yiping Deng
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China
| | - Ziqi Feng
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China
| | - Chen Zhong
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China
| | - Weiwei Wu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China
| | - Yannian Huang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China
| | - Lingling Wang
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China
| | - Chang Zu
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China
| | - Xiuhua Zhao
- Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin, China
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Luan S, Yun X, Rao W, Xiao C, Xu Z, Lang J, Huang Q. Emamectin benzoate induces ROS-mediated DNA damage and apoptosis in Trichoplusia Tn5B1-4 cells. Chem Biol Interact 2017; 273:90-98. [PMID: 28601557 DOI: 10.1016/j.cbi.2017.06.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/13/2017] [Accepted: 06/06/2017] [Indexed: 10/19/2022]
Abstract
Emamectin benzoate (EMB), a novel macrocyclic lactone insecticide, possesses high efficacy and beneficial selective toxicity in agriculture, but so far the EMB-induced cytotoxic action in arthropod insect remains unclear. The present studies were carried out to characterize the property of EMB on the induction of reactive oxygen species (ROS)-mediated DNA damage and apoptosis in Trichoplusia Tn5B1-4 cell model. Following the exposure to EMB at 2.5, 5, 10 or 15 μM, the cells changed to be round, suspended and aggregated, and the decline of cell proliferating ability and cell viability was positively related with the exposure time. Median inhibitory concentration (IC50) of EMB on cell viability was 3.72 μM during 72 h exposure. Apoptosis was induced in 29.8% (24 h) and 39.5% (48 h) of the cells by EMB at 15 μM, showing chromatin condensation in nuclei. The content of ROS in the cells increased rapidly as the concentration of EMB increased, and the pre-incubation of the cells with vitamin E significantly reduced the ROS accumulation. In the treatment of 15 μM EMB, the migrated cell nucleus with DNA strand breaks appeared a teardrop, pear-shaped, or large fan-like tail, and 63.1% of γH2AX-positive cells contained more than four foci, accompanying with high expression level of caspase-3 in time-dependent manner, which consequently led to cell apoptotic death. These evidences in ROS-mediated DNA damage and cell apoptosis induced by EMB may be helpful for deep understanding the cytotoxic action of EMB based on cell model.
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Affiliation(s)
- Shaorong Luan
- Research Center of Analysis and Test, East China University of Science and Technology, Shanghai 200237, China
| | - Xinming Yun
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Wenbing Rao
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Ciying Xiao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhikang Xu
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Jialin Lang
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Qingchun Huang
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China.
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264
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Yun X, Rao W, Xiao C, Huang Q. Apoptosis of leukemia K562 and Molt-4 cells induced by emamectin benzoate involving mitochondrial membrane potential loss and intracellular Ca 2+ modulation. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2017; 52:280-287. [PMID: 28525847 DOI: 10.1016/j.etap.2017.04.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Revised: 04/11/2017] [Accepted: 04/15/2017] [Indexed: 06/07/2023]
Abstract
Leukemia threatens millions of people's health and lives, and the pesticide-induced leukemia has been increasingly concerned because of the etiologic exposure. In this paper, cytotoxic effect of emamectin benzoate (EMB), an excellent natural-product insecticide, was evaluated through monitoring cell viability, cell apoptosis, mitochondrial membrane potential and intracellular Ca2+ concentration ([Ca2+]i) in leukemia K562 and Molt-4 cells. Following the exposure to EMB, cell viability was decreased and positive apoptosis of K562 and Molt-4 cells was increased in a concentration- and time- dependent fashion. In the treatment of 10μM EMB, apoptotic cells accounted for 93.0% to K562 cells and 98.9% to Molt-4 cells based on the control, meanwhile, 63.47% of K562 cells and 81.15% of Molt-4 cells exhibited late apoptotic and necrotic features with damaged cytoplasmic membrane. 48h exposure to 10μM EMB increased significantly the great number of cells with mitochondrial membrane potential (MMP) loss, and the elevation of [Ca2+]i level was peaked and persisted within 70s in K562 cells whilst 50s in Molt-4 cells. Moreover, a stronger cytotoxicity of EMB was further observed than that of imatinib. The results authenticate the efficacious effect of EMB as a potential anti-leukemia agent and an inconsistency with regard to insecticide-induced leukemia.
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Affiliation(s)
- Xinming Yun
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Wenbing Rao
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Ciying Xiao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Qingchun Huang
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China.
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265
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Olivares-Trigo P, Peña CF, Cavieres MF. A simple short term method to study thyroid disruption using a fetal rat thyroid culture. J Pharmacol Toxicol Methods 2017; 88:19-24. [PMID: 28476565 DOI: 10.1016/j.vascn.2017.04.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 03/11/2017] [Accepted: 04/30/2017] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Thyroid modulation activity has not been investigated for many chemical substances. Due to ethical, practical and financial reasons, in vivo evaluation of a large number of compounds is not feasible. It has been proposed that an in vitro mechanism-based strategy could be more adequate for the identification of thyroid hormone disrupting chemicals. Here we describe a simple and mostly inexpensive, short term culture assay to study thyroid disruption. METHODS Fetal thyroids collected from gestation day 20.5 were cultured up to 24h in Hank's saline solution, at 37°C with oxygenation at 0 and 12h. Viability of the cultured explants was evaluated by the MTT assay. Positive (thyroid stimulating hormone, TSH) and negative (6-propyl-2-thiouracil, PTU) modulation of cultured thyroids was assessed with morphometrical analysis of H & E stained gland sections. Thyroxine expression was evaluated by immunohistochemistry. RESULTS Viability was shown to increase with time of culture with higher metabolic activity being achieved at 24h as compared to shorter periods of incubation. Follicular epithelial cells exhibited a statistically significant dependence on thyrotropin concentration, although more evident in the inner than in the outer portion of the glands. As expected, TSH induced expression of thyroxin while PTU inhibited it. DISCUSSION GD20.5 fetal thyroids may be cultured up to 24h under relatively simple laboratory conditions during which viability and function of the gland are preserved showing that it is possible to reproduce in vivo response under in vitro conditions. This culture could be a suitable short term assay to study mechanism of thyroid disruption.
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Affiliation(s)
- Pablo Olivares-Trigo
- Escuela de Química y Farmacia, Facultad de Farmacia, Universidad de Valparaíso, Valparaíso, CHILE, Av Gran Bretaña 1093, Playa Ancha, Valparaíso, Chile.
| | - Camilo Fuentes Peña
- Escuela de Química y Farmacia, Facultad de Farmacia, Universidad de Valparaíso, Valparaíso, CHILE, Av Gran Bretaña 1093, Playa Ancha, Valparaíso, Chile.
| | - María Fernanda Cavieres
- Escuela de Química y Farmacia, Facultad de Farmacia, Universidad de Valparaíso, Valparaíso, CHILE, Av Gran Bretaña 1093, Playa Ancha, Valparaíso, Chile.
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266
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Ma J, Li T, Han X, Yuan H, Liang H, Wang Y, Wang X, Duan Y, Li A, Song H, Yang D. Discovery and mechanism of action of Novel Baicalein modified derivatives as potent antihepatitis agent. Virology 2017; 507:199-205. [PMID: 28453983 DOI: 10.1016/j.virol.2017.04.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 03/30/2017] [Accepted: 04/04/2017] [Indexed: 12/28/2022]
Abstract
Anti-hepatitis B virus (HBV) activity was evaluated in HepG2 2.2.15 cells by novel Baicalein derivatives. The result showed that compounds 4k and 4h was found to be effective anti-HBV agent. Further, the effect of compounds 4k and 4h showed dose-dependent inhibition of HBV-DNA as compared to control together with significant inhibition of HbeAG and HbsAG expression in the tested dose. Both compounds showed considerable affinity against the HepG2.2.15 cells. Moreover, the docking study of compound 4k was carried out with HLA molecule showing excellent intermolecular interactions with the receptor via creation of numerous bonds with Ser5, Thr27, Asp29 and Phe8. The compound 4k showed significant effect on the HO-1 expression in HepG2.2.15 cells together with excellent anti-HBV activity in transgenic mouse confirmed by biochemical and histopathological parameters. Compound 4k also showed excellent pharmacokinetic profile in experimental animal and thus, provide a novel class of potent anti-HBV agents.
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Affiliation(s)
- Ji Ma
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou university, Zhengzhou City, Henan 450000, China.
| | - Tengfei Li
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou university, Zhengzhou City, Henan 450000, China
| | - Xinwei Han
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou university, Zhengzhou City, Henan 450000, China
| | - Huifeng Yuan
- Department of Interventional Radiology, The First Affiliated Hospital of Zhengzhou university, Zhengzhou City, Henan 450000, China
| | - Haijun Liang
- Department of Infection, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, Henan 453100, China
| | - Yanping Wang
- Department of Infection, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, Henan 453100, China
| | - Xinwei Wang
- Department of Infection, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, Henan 453100, China
| | - Yuxiu Duan
- Department of Infection, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, Henan 453100, China
| | - Aihui Li
- Department of Infection, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, Henan 453100, China
| | - Huilian Song
- Department of Infection, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, Henan 453100, China
| | - Daokun Yang
- Department of Infection, The First Affiliated Hospital of Xinxiang Medical University, Weihui City, Henan 453100, China
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267
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Sharif A, Akhtar MF, Akhtar B, Saleem A, Manan M, Shabbir M, Ashraf M, Peerzada S, Ahmed S, Raza M. Genotoxic and cytotoxic potential of whole plant extracts of Kalanchoe laciniata by Ames and MTT assay. EXCLI JOURNAL 2017; 16:593-601. [PMID: 28694760 PMCID: PMC5491922 DOI: 10.17179/excli2016-748] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 04/03/2017] [Indexed: 01/24/2023]
Abstract
Lack of data on safety of herbal medicines have endangered human health and life. The present study evaluated the genotoxic and mutagenic effect of Kalanchoe laciniata to access the safety and usefulness of the medicinal plant. Aqua-methanolic and n-hexane extracts of K. laciniata were evaluated for the genotoxic potential using Ames assay and cytotoxicity was evaluated using MTT assay. Ames assay was conducted using two strains of Salmonella typhimurium TA-100 and TA-102 whereas MTT assay was performed on baby hamster kidney cell line BHK-21. Aqua-methanolic extract of K.laciniata exhibited significant mutagenicity when exposed to TA-102 strain with a mutagenic index of 50.66 and 54.74 at maximum dose 150 mg/plate. The extract was also mutagenic to TA-100 strain but to a lesser extent. M.I of n-hexane extract was 12.15 and 15.51 for TA-100 and TA-102 respectively. n-hexane extract was mutagenic but little difference was observed between results of two strains. Both extracts were found to be cytotoxic with an IC50 of 321.9 and 638.5 µg/mL for aqua-methanolic and n-hexane extracts respectively. On the basis of results it was concluded that aqua-methanolic and n-hexane extracts of K.laciniata possess mutagenic and cytotoxic potential. It is suggested to explore the plant further to evaluate its safety in rodents and other species.
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Affiliation(s)
- Ali Sharif
- Faculty of Pharmacy, the University of Lahore, Lahore, Pakistan
| | | | - Bushra Akhtar
- Institute of Pharmacy, Physiology and Pharmacology, University of Agriculture, Faisalabad, Pakistan
| | - Ammara Saleem
- Faculty of Pharmaceutical Sciences, GC University, Faisalabad, Pakistan
| | - Maria Manan
- Faculty of Pharmaceutical Sciences, GC University, Faisalabad, Pakistan
| | - Maryam Shabbir
- Faculty of Pharmacy, the University of Lahore, Lahore, Pakistan
| | - Muneeb Ashraf
- Postgraduate Medical Institute, Jail Road, Lahore, Pakistan
| | - Sohaib Peerzada
- Faculty of Pharmacy, the University of Lahore, Lahore, Pakistan
| | - Shoaib Ahmed
- Faculty of Pharmacy, the University of Lahore, Lahore, Pakistan
| | - Moosa Raza
- Faculty of Pharmacy, the University of Lahore, Lahore, Pakistan
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268
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Yoo HS, Kim JM, Jo E, Cho CK, Lee SY, Kang HS, Lee MG, Yang PY, Jang IS. Modified Panax ginseng extract regulates autophagy by AMPK signaling in A549 human lung cancer cells. Oncol Rep 2017; 37:3287-3296. [PMID: 28440448 DOI: 10.3892/or.2017.5590] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2016] [Accepted: 10/17/2016] [Indexed: 11/06/2022] Open
Abstract
Panax ginseng has been used worldwide as a traditional medicine for the treatment of cancer and other diseases. The antiproliferative activity of ginseng has been increased after enzymatic processing of ginseng saponin, which may result in the accumulation of minor saponins, such as Rh2, Rg3, compound K and protopanaxatriol type (PPT) in modified regular ginseng extract (MRGX). In the present study, the anticancer activity and the associated mechanisms of MRGX were investigated using A549 human lung cancer cells. To elucidate the mechanisms underlying the effects of MRGX, we performed a microarray analysis of gene expression in the A549 cells. Molecular mechanisms that were associated with the anticancer activity of MRGX were studied, with a special focus on the autophagy-related multiple signaling pathways in lung cancer cells. Microarray analyses elucidated autophagy-related genes affected by MRGX. Administration of MRGX at 100 µg/ml induced punctate cytoplasmic expression of LC3, Beclin-1 and ATG5 and increased expression of endogenous LC3-II whereas 50 µg/ml did not inhibit the proliferation of A549 cells. Compared to the control cells, in cells treated with MRGX at 100 µg/ml, the level of p-Akt was increased, while that of mTOR-4EBP1 was decreased. Downregulation of mTOR and 4EBP1 in the MRGX-treated cells was found not to be a p-Ulk (S757)-dependent pathway, but a p-Ulk (S317)-dependent autophagic pathway, using AMPK. These data suggest that MRGX regulates AMPK and induces autophagy in lung cancer cells.
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Affiliation(s)
- Hwa-Seung Yoo
- East-West Cancer Center, Dunsan Oriental Hospital of Daejeon University, Daejeon 302-122, Republic of Korea
| | - Jung Min Kim
- NAR Center, Inc. & Genoplan Korea, Inc., Seoul 06221, Republic of Korea
| | - Eunbi Jo
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea
| | - Chong-Kwan Cho
- East-West Cancer Center, Dunsan Oriental Hospital of Daejeon University, Daejeon 302-122, Republic of Korea
| | - Seung-Yeul Lee
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea
| | - Hwan Su Kang
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea
| | - Min-Goo Lee
- Department of Physiology, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Pei-Ying Yang
- Departments of Palliative, Rehabilitation and Integrative Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Ik-Soon Jang
- Division of Bioconvergence Analysis, Korea Basic Science Institute, Daejeon 305-333, Republic of Korea
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Grześkiewicz AM, Owczarzak A, Kucińska M, Murias M, Kubicki M. Structural peculiarities and anticancer activities of two organotin compounds. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1316841] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - Agata Owczarzak
- Department of Chemistry, Adam Mickiewicz University in Poznań, Poznań, Poland
| | - Małgorzata Kucińska
- Department of Toxicology, Poznan University of Medical Sciences, Poznan, Poland
| | - Marek Murias
- Department of Toxicology, Poznan University of Medical Sciences, Poznan, Poland
| | - Maciej Kubicki
- Department of Chemistry, Adam Mickiewicz University in Poznań, Poznań, Poland
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270
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Mono-2-ethylhexyl phthalate inhibits human extravillous trophoblast invasion via the PPARγ pathway. Toxicol Appl Pharmacol 2017; 327:23-29. [PMID: 28416457 DOI: 10.1016/j.taap.2017.04.014] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 04/06/2017] [Accepted: 04/13/2017] [Indexed: 01/17/2023]
Abstract
Concerns over the adverse reproductive outcomes in human have been raised, more evidence including the underlying mechanism are required. Since extravillous trophoblast (EVT) invasion is an important physiological step during early development, the effects of mono-2-ethylhexyl phthalate (MEHP), the bioactive metabolite of DEHP, on EVT invasion were investigated using Matrigel-coated transwell chambers and cell line HTR-8/SVneo. In the transwell-based invasive assay, MEHP exposure inhibited EVT invasion as judged by decreased invasion index. Further analysis showed that MEHP exposure significantly inhibited the activity of matrix metalloproteinase-9 (MMP-9), which is an important positive regulator of EVT invasion. Meanwhile, the protein levels of tissue inhibitor matrix metalloproteinase-1 (TIMP-1), one key negative regulator of EVT invasion, were upregulated by MEHP treatment. Finally, inactivation of PPARγ pathway by either PPARγ inhibitors or PPARγ shRNA knockdown rescued the MEHP-induced inhibited invasion of HTR-8/SVneo cells, which is accompanied by the recovery of inhibited MMP-9 expression. The present study provides the evidence that MEHP exposure inhibits trophoblast invasion via PPARγ at concentrations comparable to those found in humans, which provides an insight in understanding the mechanisms of DEHP-associated early pregnancy loss.
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271
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Siricilla S, Mitachi K, Yang J, Eslamimehr S, Lemieux MR, Meibohm B, Ji Y, Kurosu M. A New Combination of a Pleuromutilin Derivative and Doxycycline for Treatment of Multidrug-Resistant Acinetobacter baumannii. J Med Chem 2017; 60:2869-2878. [PMID: 28291943 PMCID: PMC5469366 DOI: 10.1021/acs.jmedchem.6b01805] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Multidrug-resistant (MDR) Acinetobacter baumannii is one of the most difficult Gram-negative bacteria to treat and eradicate. In a cell-based screening of pleuromutilin derivatives against a drug sensitive A. baumannii strain, new molecules (2-4) exhibit bacteriostatic activity with 3.13 μg/mL concentration and 1 shows bactericidal activity with an MBC of 6.25 μg/mL. The pleuromutilin derivative 1 displays strong synergistic effects with doxycycline in a wide range of concentrations. A 35/1 ratio of 1 and doxycycline (1-Dox 35/1) kills drug susceptible A. baumannii with the MBC of 2.0 μg/mL and an MDR A. baumannii with the MBC of 3.13 μg/mL. In vitro anti-Acinetobacter activity of 1-Dox 35/1 is superior to that of clinical drugs such as tobramycin, tigecycline, and colistin. The efficacy of 1-Dox 35/1 is evaluated in a mouse septicemia model; treatment of the infected C57BL/6 mice with 1-Dox 35/1 protects from lethal infection of A. baumannii with an ED50 value of <2.0 mg/kg.
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Affiliation(s)
- Shajila Siricilla
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163, United States
| | - Katsuhiko Mitachi
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163, United States
| | - Junshu Yang
- Department of Veterinary and Biomedical Sciences, University of Minnesota, 205 VSB, 1971 Commonwealth Avenue, St. Paul, MN 55108, United States
| | - Shakiba Eslamimehr
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163, United States
| | - Maddie R. Lemieux
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163, United States
| | - Bernd Meibohm
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163, United States
| | - Yinduo Ji
- Department of Veterinary and Biomedical Sciences, University of Minnesota, 205 VSB, 1971 Commonwealth Avenue, St. Paul, MN 55108, United States
| | - Michio Kurosu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee Health Science Center, 881 Madison Avenue, Memphis, TN 38163, United States
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272
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Relationship between Porcine Sperm Motility and Sperm Enzymatic Activity using Paper-based Devices. Sci Rep 2017; 7:46213. [PMID: 28387379 PMCID: PMC5384208 DOI: 10.1038/srep46213] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 03/13/2017] [Indexed: 01/20/2023] Open
Abstract
Mammalian sperm motility has traditionally been analyzed to determine fertility using computer-assisted semen analysis (CASA) systems. To develop low-cost and robust male fertility diagnostics, we created a paper-based MTT assay and used it to estimate motile sperm concentration. When porcine sperm motility was inhibited using sperm enzyme inhibitors for sperm enzymes related to mitochondrial activity and glycolysis, we simultaneously recorded sperm motility and enzymatic reactivity using a portable motility analysis system (iSperm) and a paper-based MTT assay, respectively. When using our paper-based MTT-assay, we calculated the area mean value signal intensity (AMV) to evaluate enzymatic reactivity. Both sperm motility and AMV decreased following treatment with iodoacetamide (IODO) and 3-bromopyruvic acid (3BP), both of which are inhibitors of glycolytic enzymes including glyceraldehyde-3-phosphate dehydrogenase (GAPDH). We found a correlation between recorded motility using iSperm and AMV from our paper-based assay (P < 0.05), suggesting that a sperm-related enzymatic reaction is involved in sperm motility. Under this protocol, MTT reduction was coupled with catalysis of GAPDH and was promoted by electron transfer from NADH. Based on this inhibitor study, sperm motility can be estimated using our paper-based MTT-assay.
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273
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Azarsiz E, Karaca N, Ergun B, Durmuscan M, Kutukculer N, Aksu G. In vitro T lymphocyte proliferation by carboxyfluorescein diacetate succinimidyl ester method is helpful in diagnosing and managing primary immunodeficiencies. J Clin Lab Anal 2017; 32. [PMID: 28383134 DOI: 10.1002/jcla.22216] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 02/28/2017] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND Functional studies besides routine laboratory tests for the definitive diagnosis of T lymphocyte disorders with isolated T or combined T/B-cell immunodeficiencies are important. We hereby summarized our experience with a carboxyfluorescein diacetate succinimidyl ester (CFSE)-based assay for the assessment of mitogenic T-cell proliferation responses in primary immunodeficiency (PID) patients who have not been diagnosed yet or genetically analyzed, but classified as probably having T-cell defects. METHODS Unclassified patients (n=46) and controls (n=25) were evaluated for T-cell disorders with CFSE-based assay. RESULTS CD3+ blast cells after PHA-L stimulation were significantly lower in patients (31.1±28.8) than controls (67.9±8.79; P<.001). Nine patients with low and four patients with normal CD3 values had severely decreased blastic transformation. The proliferation response decreased mostly in combined immunodeficiency group. Sixteen of them had impaired proliferation responses. Appropriate molecular genetical analyses were planned after thorough evaluation of each patient. CONCLUSIONS In vitro lymphocyte cell proliferation analysis by CFSE method is a reliable and practical choice for the assessment of mitogenic T lymphocyte responses in yet unclassified PID patients for targeting further genetical analyses.
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Affiliation(s)
- Elif Azarsiz
- Department of Pediatric Immunology, Ege University, Izmir, Turkey
| | - Neslihan Karaca
- Department of Pediatric Immunology, Ege University, Izmir, Turkey
| | - Birgul Ergun
- Department of Pediatric Immunology, Ege University, Izmir, Turkey
| | - Mehmet Durmuscan
- Department of Pediatric Immunology, Ege University, Izmir, Turkey
| | - Necil Kutukculer
- Department of Pediatric Immunology, Ege University, Izmir, Turkey
| | - Guzide Aksu
- Department of Pediatric Immunology, Ege University, Izmir, Turkey
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274
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Neuroprotective property of low molecular weight fraction from B. jararaca snake venom in H 2 O 2 -induced cytotoxicity in cultured hippocampal cells. Toxicon 2017; 129:134-143. [DOI: 10.1016/j.toxicon.2017.02.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Revised: 02/13/2017] [Accepted: 02/16/2017] [Indexed: 12/16/2022]
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275
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Yun X, Huang Q, Rao W, Xiao C, Zhang T, Mao Z, Wan Z. A comparative assessment of cytotoxicity of commonly used agricultural insecticides to human and insect cells. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2017; 137:179-185. [PMID: 27940132 DOI: 10.1016/j.ecoenv.2016.12.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 12/02/2016] [Accepted: 12/02/2016] [Indexed: 06/06/2023]
Abstract
The cytotoxic potential of 13 commonly used agricultural insecticides was examined using cell-based systems with three human HepG2, Hek293, HeLa cells and three insect Tn5B1-4, Sf-21, and Drosophila S2 cells. Data showed that (1) an enhancement of some insecticides (e.g. pyrethroids) on cells proliferation; (2) an inhibition of some insecticides on cells viability; (3) various levels of susceptibility of different cells to the same insecticide; and (4) the cell type dependent sensitivity to different insecticides. The degree of cytotoxicity of insecticides on human cells was significantly lower than that on insect cells (P<0.05). Methomyl, even 20μg/ml, showed little cytotoxicity at 24h exposure whereas emamectin benzoate possessed the strongest cytotoxic potential in a dose-dependent fashion. The results revealed comparable cytotoxic property of agricultural insecticides against intact cells.
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Affiliation(s)
- Xinming Yun
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Qingchun Huang
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China.
| | - Wenbing Rao
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Ciying Xiao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Tao Zhang
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Zhifan Mao
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Ziyi Wan
- Shanghai Key Lab of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
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276
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Aher SB, Dubey V, Muskawar PN, Thenmozhi K, Ghosh AR, Bhagat PR. Cytotoxic behavior of binuclear silver N-heterocyclic carbenes in HCT 116 cells and influence of substitution on cytotoxicity. RESEARCH ON CHEMICAL INTERMEDIATES 2017. [DOI: 10.1007/s11164-017-2916-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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277
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Monnery BD, Wright M, Cavill R, Hoogenboom R, Shaunak S, Steinke JHG, Thanou M. Cytotoxicity of polycations: Relationship of molecular weight and the hydrolytic theory of the mechanism of toxicity. Int J Pharm 2017; 521:249-258. [PMID: 28232268 DOI: 10.1016/j.ijpharm.2017.02.048] [Citation(s) in RCA: 146] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2016] [Revised: 02/13/2017] [Accepted: 02/18/2017] [Indexed: 12/17/2022]
Abstract
The mechanism of polycation cytotoxicity and the relationship to polymer molecular weight is poorly understood. To gain an insight into this important phenomenon a range of newly synthesised uniform (near monodisperse) linear polyethylenimines, commercially available poly(l-lysine)s and two commonly used PEI-based transfectants (broad 22kDa linear and 25kDa branched) were tested for their cytotoxicity against the A549 human lung carcinoma cell line. Cell membrane damage assays (LDH release) and cell viability assays (MTT) showed a strong relationship to dose and polymer molecular weight, and increasing incubation times revealed that even supposedly "non-toxic" low molecular weight polymers still damage cell membranes. The newly proposed mechanism of cell membrane damage is acid catalysed hydrolysis of lipidic phosphoester bonds, which was supported by observations of the hydrolysis of DOPC liposomes.
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Affiliation(s)
- Bryn D Monnery
- Chemical Biology Section, Department of Chemistry, Imperial College London, London SW7 2AZ, UK
| | - Michael Wright
- Institute of Pharmaceutical Science, King's College London,Franklin-Wilkins Building, London, SE1 9NH, UK
| | - Rachel Cavill
- Department of Data Science and Knowledge Engineering, Maastricht University, P.O. Box 616, 6200 MD, Maastricht, The Netherlands
| | - Richard Hoogenboom
- Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281-S4, 9000 Gent, Belgium
| | - Sunil Shaunak
- Department of Infectious Diseases and Immunity, Faculty of Medicine, Imperial College London, Hammersmith Campus, London, W12 ONN, UK
| | - Joachim H G Steinke
- Chemical Biology Section, Department of Chemistry, Imperial College London, London SW7 2AZ, UK
| | - Maya Thanou
- Institute of Pharmaceutical Science, King's College London,Franklin-Wilkins Building, London, SE1 9NH, UK.
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278
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Baldwin P, Tangutoori S, Sridhar S. Generation of Dose-Response Curves and Improved IC50s for PARP Inhibitor Nanoformulations. Methods Mol Biol 2017; 1530:337-342. [PMID: 28150212 DOI: 10.1007/978-1-4939-6646-2_20] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
Abstract
Poly(ADP-ribose) polymerase (PARP) inhibitors that target DNA damage repair pathways in cancer cells are increasingly attractive for treating several cancers. Determining the half maximal inhibitory concentration (IC50) of these molecular inhibitors in cell lines is crucial for further dosing for in vivo experiments. Typically these in vitro assays are conducted for 24-72 h; however, PARP inhibitors exhibit cytotoxicity based on the inability to repair DNA damage and thus the accumulation of deleterious mutations takes place over longer times. Therefore, in order to determine a relevant dose response, the time frame of the assay must be modified to account for the time required for the cells to exhibit effects from the treatment. Here, we describe two techniques for generating both short- and long-term dose-response curves for both free PARP inhibitors and nanoparticle formulations of these drugs.
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Affiliation(s)
- Paige Baldwin
- Department of Bioengineering, Northeastern University, Boston, MA, USA.,Nanomedicine Science and Technology Center, Northeastern University, 435 Egan Research Center, 120 Forsyth Street, Boston, MA, 02115, USA
| | - Shifalika Tangutoori
- Nanomedicine Science and Technology Center, Northeastern University, 435 Egan Research Center, 120 Forsyth Street, Boston, MA, 02115, USA
| | - Srinivas Sridhar
- Nanomedicine Science and Technology Center, Northeastern University, 435 Egan Research Center, 120 Forsyth Street, Boston, MA, 02115, USA. .,Department of Physics, Northeastern University, 435 Egan Research Center, 120 Forsyth Street, Boston, MA, 02115, USA.
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279
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Aprotosoaie AC, Zavastin DE, Mihai CT, Voichita G, Gherghel D, Silion M, Trifan A, Miron A. Antioxidant and antigenotoxic potential of Ramaria largentii Marr & D. E. Stuntz, a wild edible mushroom collected from Northeast Romania. Food Chem Toxicol 2017; 108:429-437. [PMID: 28174115 DOI: 10.1016/j.fct.2017.02.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 02/02/2017] [Accepted: 02/04/2017] [Indexed: 01/28/2023]
Abstract
Ramaria largentii Marr & D. E. Stuntz (orange coral mushroom) is a wild edible mushroom whose chemical composition and bioactivity have not been investigated. Herein, we present a study on the phenolic constituents, antioxidant and antigenotoxic effects of a hydromethanolic extract of the fruiting bodies. Total phenolic content, estimated by Folin-Ciocalteu assay, was found to be 42.33 ± 0.18 mg GAE/g. Protocatechuic and vanillic acids were detected by HPLC-DAD-ESI-MS. The extract showed good free radical scavenging and reducing capacities (EC50 = 64.3 ± 0.2 and 61.54 ± 0.46 μg/mL, respectively). In normal Vero cells, the extract (100, 200 and 300 μg/mL) showed no genotoxic potential and moreover, almost completely protected DNA against H2O2-induced damage (2.09-7.91% tail DNA) (24 and 48 h pre-treatment). Taken together, the results of our study show that Ramaria largentii extract is devoid of genotoxicity and has a remarkable DNA protective activity against H2O2-induced damage.
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Affiliation(s)
- Ana Clara Aprotosoaie
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Universitatii Str. 16, 700115 Iasi, Romania.
| | - Daniela Elena Zavastin
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Universitatii Str. 16, 700115 Iasi, Romania.
| | - Cosmin-Teodor Mihai
- Interdisciplinary Research Department-Field Science, Alexandru Ioan Cuza University of Iasi, Carol I Bd. 20A, 700506 Iasi, Romania; National Institute of Research and Development for Biological Sciences/Biological Research Institute, Lascar Catargi Str. 47, 700107 Iasi, Romania.
| | - Gabriela Voichita
- National Institute of Research and Development for Biological Sciences/Biological Research Institute, Lascar Catargi Str. 47, 700107 Iasi, Romania.
| | - Daniela Gherghel
- National Institute of Research and Development for Biological Sciences/Biological Research Institute, Lascar Catargi Str. 47, 700107 Iasi, Romania.
| | - Mihaela Silion
- Institute of Macromolecular Chemistry Petru Poni, Grigore Ghica Voda Al. 41A, 700487 Iasi, Romania.
| | - Adriana Trifan
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Universitatii Str. 16, 700115 Iasi, Romania.
| | - Anca Miron
- Faculty of Pharmacy, Grigore T. Popa University of Medicine and Pharmacy Iasi, Universitatii Str. 16, 700115 Iasi, Romania.
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280
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Santos NF, Cicuéndez M, Holz T, Silva VS, Fernandes AJS, Vila M, Costa FM. Diamond-Graphite Nanoplatelet Surfaces as Conductive Substrates for the Electrical Stimulation of Cell Functions. ACS APPLIED MATERIALS & INTERFACES 2017; 9:1331-1342. [PMID: 28001360 DOI: 10.1021/acsami.6b14407] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The nanocarbon allotropes constitute valid alternatives when designing control and actuation devices for electrically assisted tissue regeneration purposes, gathering among them important characteristics such as chemical inertness, biocompatibility, extreme mechanical properties, and, importantly, low and tailorable electrical resistivity. In this work, coatings of thin (100 nm) vertically aligned nanoplatelets composed of diamond (5 nm) and graphite were produced via a microwave plasma chemical vapor deposition (MPCVD) technique and used as substrates for electrical stimulation of MC3T3-E1 preosteoblasts. Increasing the amount of N2 up to 14.5 vol % during growth lowers the coatings' electrical resistivity by over 1 order of magnitude, triggers the nanoplatelet vertical growth, and leads to the higher crystalline quality of the nanographite phase. When preosteoblasts were cultured on these substrates and subjected to two consecutive daily cycles of 3 μA direct current stimulation, enhanced cell proliferation and metabolism were observed accompanied by high cell viability. Furthermore, in the absence of DC stimulation, alkaline phosphatase (ALP) activity is increased significantly, denoting an up-regulating effect of preosteoblastic maturation intrinsically exerted by the nanoplatelet substrates.
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Affiliation(s)
- N F Santos
- i3N and Physics Department, University of Aveiro , 3810-193 Aveiro, Portugal
| | - M Cicuéndez
- TEMA-NRG, Mechanical Engineering Department and CICECO-Aveiro Institute of Materials, Department of Chemistry, University of Aveiro , 3810-193 Aveiro, Portugal
| | - T Holz
- i3N and Physics Department, University of Aveiro , 3810-193 Aveiro, Portugal
| | - V S Silva
- CESAM, Biology Department, University of Aveiro , 3810-193 Aveiro, Portugal
| | - A J S Fernandes
- i3N and Physics Department, University of Aveiro , 3810-193 Aveiro, Portugal
| | - M Vila
- TEMA-NRG, Mechanical Engineering Department, University of Aveiro , 3810-193 Aveiro, Portugal
| | - F M Costa
- i3N and Physics Department, University of Aveiro , 3810-193 Aveiro, Portugal
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281
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van Onzen AHAM, Albertazzi L, Schenning APHJ, Milroy LG, Brunsveld L. Hydrophobicity determines the fate of self-assembled fluorescent nanoparticles in cells. Chem Commun (Camb) 2017; 53:1626-1629. [PMID: 28097276 DOI: 10.1039/c6cc08793k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
The fate of small molecule nanoparticles (SMNPs) composed of self-assembling intrinsically fluorescent π-conjugated oligomers was studied in cells as a function of side-chain hydrophobicity. While the hydrophobic SMNPs remained intact upon cellular uptake, the more hydrophilic SMNPs disassembled and dispersed throughout the cytosol.
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Affiliation(s)
- Arthur H A M van Onzen
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute of Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands.
| | - Lorenzo Albertazzi
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute of Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands. and Nanoscopy for Nanomedicine Group, Institute for Bioengineering of Catalonia (IBEC), Barcelona, 08028, Spain
| | - Albertus P H J Schenning
- Laboratory of Functional Organic Materials and Devices, Department of Chemical Engineering and Chemistry and Institute of Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands
| | - Lech-Gustav Milroy
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute of Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands.
| | - Luc Brunsveld
- Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute of Complex Molecular Systems (ICMS), Eindhoven University of Technology, P.O. Box 513, 5600MB, Eindhoven, The Netherlands.
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282
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Yang J, Cao X, Zhao Y, Wang L, Liu B, Jia J, Liang H, Chen M. Enhanced pH stability, cell viability and reduced degradation rate of poly(L-lactide)-based composite in vitro: effect of modified magnesium oxide nanoparticles. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 28:486-503. [DOI: 10.1080/09205063.2017.1279534] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Jinjun Yang
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China
- School of Environmental Science and Safety Engineering, Tianjin University of Technology, Tianjin, China
| | - Xiuxiang Cao
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China
| | - Yun Zhao
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China
- Tianjin Key Lab for Photoelectric Materials & Devices, Tianjin, China
| | - Liang Wang
- Tianjin Key Lab for Photoelectric Materials & Devices, Tianjin, China
| | - Bei Liu
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China
| | - Junping Jia
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China
| | - Hui Liang
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China
| | - Minfang Chen
- School of Materials Science and Engineering, Tianjin University of Technology, Tianjin, China
- Tianjin Key Lab for Photoelectric Materials & Devices, Tianjin, China
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283
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Lahiani MH, Eassa S, Parnell C, Nima Z, Ghosh A, Biris AS, Khodakovskaya MV. Carbon nanotubes as carriers of Panax ginseng metabolites and enhancers of ginsenosides Rb1 and Rg1 anti-cancer activity. NANOTECHNOLOGY 2017; 28:015101. [PMID: 27893436 DOI: 10.1088/0957-4484/28/1/015101] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A major benefit to nanomaterial based-medicine is the ability to provide nanosized vehicles for sporadic metabolites. Here, we describe how the conjugation of valuable ginseng secondary metabolites (ginsenoside Rb1 or Rg1) with carbon nanotubes (CNT) can enhance their anti-proliferative and anti-cancer effects. Ginsenoside-CNT conjugate (Rb-CNT or Rg-CNT) permitted the ginsenosides to be used at a low dose, yet achieve a higher incidence of cancer killing. We were able to demonstrate that the ginsenoside-CNT conjugate can decrease cell viability up to 62% in breast cancer cells (MCF-7) and enhance antiproliferation of drug-resistant pancreatic cancer cells (PANC-1) by 61%. The interaction of the ginsenoside-CNT conjugate with breast cancer cells was studied using Raman Spectroscopy mapping. Total transcriptome profiling (Affymetrix platform) of MCF-7 cells treated with the ginsenoside-CNT conjugate shows that a number of cellular, apoptotic and response to stimulus processes were affected. Therefore, our data confirmed the potential use of CNT as a drug delivery system.
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Affiliation(s)
- Mohamed H Lahiani
- Department of Biology, University of Arkansas at Little Rock, Little Rock, AR, USA
| | - Souzan Eassa
- Department of Microbiology, Medical School, University of Duhok, Duhok, Iraq
| | - Charlette Parnell
- Department of Chemistry, University of Arkansas at Little Rock, Little Rock, AR, USA
| | - Zeid Nima
- Center of Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, Little Rock, AR, USA
| | - Anindya Ghosh
- Department of Chemistry, University of Arkansas at Little Rock, Little Rock, AR, USA
| | - Alexandru S Biris
- Center of Integrative Nanotechnology Sciences, University of Arkansas at Little Rock, Little Rock, AR, USA
| | - Mariya V Khodakovskaya
- Department of Biology, University of Arkansas at Little Rock, Little Rock, AR, USA
- Institute of Biology and Soil Science, Far-Eastern Branch of Russian Academy of Sciences, Vladivostok, Russian Federation
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284
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Arasavelli AM, Raghava GSV, Vidavalur S. Design and synthesis of 4,5-diaryl/heteroarylthiophene-2-carboxylic acid derivatives and evaluation of their biological activities. HETEROCYCL COMMUN 2017. [DOI: 10.1515/hc-2016-0131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
AbstractSynthesis, characterization and biological activity of novel 4,5-diaryl/heteroaryl thiophene-2-carboxylic acid derivatives are described. Aryl/heteroaryl esters were converted to substituted thiophene esters via a Vilsmeier-Haack reaction, which were then hydrolyzed to 4,5-diaryl/heteroaryl thiophene-2-carboxylic acid derivatives
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285
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Rotaru A, Pricope G, Plank TN, Clima L, Ursu EL, Pinteala M, Davis JT, Barboiu M. G-Quartet hydrogels for effective cell growth applications. Chem Commun (Camb) 2017; 53:12668-12671. [DOI: 10.1039/c7cc07806d] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Functional G-quartet hydrogels formed from natural guanosine cross linked with benzene-1,4-diboronic acid and Mg2+ support cell growth with no visible signs of gel degradation.
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Affiliation(s)
- Alexandru Rotaru
- “Petru Poni” Institute of Macromolecular Chemistry
- Centre Advanced Research in Bionanoconjugates and Biopolymers
- Romania
| | - Gabriela Pricope
- “Petru Poni” Institute of Macromolecular Chemistry
- Centre Advanced Research in Bionanoconjugates and Biopolymers
- Romania
| | - Taylor N. Plank
- Department of Chemistry and Biochemistry
- University of Maryland
- College Park
- USA
| | - Lilia Clima
- “Petru Poni” Institute of Macromolecular Chemistry
- Centre Advanced Research in Bionanoconjugates and Biopolymers
- Romania
| | - Elena L. Ursu
- “Petru Poni” Institute of Macromolecular Chemistry
- Centre Advanced Research in Bionanoconjugates and Biopolymers
- Romania
| | - Mariana Pinteala
- “Petru Poni” Institute of Macromolecular Chemistry
- Centre Advanced Research in Bionanoconjugates and Biopolymers
- Romania
| | - Jeffery T. Davis
- Department of Chemistry and Biochemistry
- University of Maryland
- College Park
- USA
| | - Mihail Barboiu
- “Petru Poni” Institute of Macromolecular Chemistry
- Centre Advanced Research in Bionanoconjugates and Biopolymers
- Romania
- Institut Europeen Membranes
- Adaptive Supramolecular Nanosystems Group
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286
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Santhosh PB, Thomas N, Sudhakar S, Chadha A, Mani E. Phospholipid stabilized gold nanorods: towards improved colloidal stability and biocompatibility. Phys Chem Chem Phys 2017; 19:18494-18504. [DOI: 10.1039/c7cp03403b] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biocompatible and colloidally stable gold nanorods (GNRs) with well-defined plasmonic properties are essential for biomedical and theranostic applications.
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Affiliation(s)
- Poornima Budime Santhosh
- Polymer Engineering and Colloid Science Laboratory
- Department of Chemical Engineering
- Indian Institute of Technology Madras
- Chennai-600036
- India
| | - Neethu Thomas
- Polymer Engineering and Colloid Science Laboratory
- Department of Chemical Engineering
- Indian Institute of Technology Madras
- Chennai-600036
- India
| | - Swathi Sudhakar
- Polymer Engineering and Colloid Science Laboratory
- Department of Chemical Engineering
- Indian Institute of Technology Madras
- Chennai-600036
- India
| | - Anju Chadha
- Laboratory of Bioorganic Chemistry
- Department of Biotechnology
- Indian Institute of Technology Madras
- Chennai-600036
- India
| | - Ethayaraja Mani
- Polymer Engineering and Colloid Science Laboratory
- Department of Chemical Engineering
- Indian Institute of Technology Madras
- Chennai-600036
- India
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287
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Dascalu AI, Ardeleanu R, Neamtu A, Maier SS, Uritu CM, Nicolescu A, Silion M, Peptanariu D, Calin M, Pinteala M. Transfection-capable polycationic nanovectors which include PEGylated-cyclodextrin structural units: a new synthesis pathway. J Mater Chem B 2017; 5:7164-7174. [DOI: 10.1039/c7tb01722g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Polycationic nanoentities with low variability are able to act as cooperating carriers for dsDNA complexation and transport.
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Affiliation(s)
- A. I. Dascalu
- Centre of Advanced Research in Bionanoconjugates and Biopolymers
- “Petru Poni” Institute of Macromolecular Chemistry
- 700487 Iasi
- Romania
| | - R. Ardeleanu
- Centre of Advanced Research in Bionanoconjugates and Biopolymers
- “Petru Poni” Institute of Macromolecular Chemistry
- 700487 Iasi
- Romania
| | - A. Neamtu
- Centre of Advanced Research in Bionanoconjugates and Biopolymers
- “Petru Poni” Institute of Macromolecular Chemistry
- 700487 Iasi
- Romania
- Regional Institute of Oncology (IRO)
| | - S. S. Maier
- Centre of Advanced Research in Bionanoconjugates and Biopolymers
- “Petru Poni” Institute of Macromolecular Chemistry
- 700487 Iasi
- Romania
- “Gheorghe Asachi” Technical University of Iasi
| | - C. M. Uritu
- Centre of Advanced Research in Bionanoconjugates and Biopolymers
- “Petru Poni” Institute of Macromolecular Chemistry
- 700487 Iasi
- Romania
| | - A. Nicolescu
- Centre of Advanced Research in Bionanoconjugates and Biopolymers
- “Petru Poni” Institute of Macromolecular Chemistry
- 700487 Iasi
- Romania
| | - M. Silion
- Centre of Advanced Research in Bionanoconjugates and Biopolymers
- “Petru Poni” Institute of Macromolecular Chemistry
- 700487 Iasi
- Romania
| | - D. Peptanariu
- Centre of Advanced Research in Bionanoconjugates and Biopolymers
- “Petru Poni” Institute of Macromolecular Chemistry
- 700487 Iasi
- Romania
| | - M. Calin
- “Nicolae Simionescu” Institute of Cellular Biology and Pathology
- Bucharest
- Romania
| | - M. Pinteala
- Centre of Advanced Research in Bionanoconjugates and Biopolymers
- “Petru Poni” Institute of Macromolecular Chemistry
- 700487 Iasi
- Romania
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288
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He R, Wang H, Su Y, Chen C, Xie L, Chen L, Yu J, Toledo Y, Abayaweera GS, Zhu G, Bossmann SH. Incorporating 131I into a PAMAM (G5.0) dendrimer-conjugate: design of a theranostic nanosensor for medullary thyroid carcinoma. RSC Adv 2017. [DOI: 10.1039/c7ra00604g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
We report the synthesis and purification of a targeting probe for Medullary Thyroid Carcinoma (MTC) by incorporating 131I into PAMAM (G5.0) dendrimers.
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Affiliation(s)
- R. He
- Department of Nuclear Medicine
- First Affiliated Hospital of Kunming Medical University
- Kunming
- China
| | - H. Wang
- Department of Chemistry
- Kansas State University
- Manhattan
- USA
| | - Y. Su
- Department of Nuclear Medicine
- First Affiliated Hospital of Kunming Medical University
- Kunming
- China
| | - C. Chen
- Department of Nuclear Medicine
- First Affiliated Hospital of Kunming Medical University
- Kunming
- China
| | - L. Xie
- Department of Nuclear Medicine
- First Affiliated Hospital of Kunming Medical University
- Kunming
- China
| | - L. Chen
- Department of Nuclear Medicine
- First Affiliated Hospital of Kunming Medical University
- Kunming
- China
| | - J. Yu
- Department of Chemistry
- Kansas State University
- Manhattan
- USA
| | - Y. Toledo
- Department of Chemistry
- Kansas State University
- Manhattan
- USA
| | | | - G. Zhu
- Department of Nuclear Medicine
- First Affiliated Hospital of Kunming Medical University
- Kunming
- China
| | - S. H. Bossmann
- Department of Chemistry
- Kansas State University
- Manhattan
- USA
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289
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Cerchiara T, Abruzzo A, Ñahui Palomino RA, Vitali B, De Rose R, Chidichimo G, Ceseracciu L, Athanassiou A, Saladini B, Dalena F, Bigucci F, Luppi B. Spanish Broom (Spartium junceum L.) fibers impregnated with vancomycin-loaded chitosan nanoparticles as new antibacterial wound dressing: Preparation, characterization and antibacterial activity. Eur J Pharm Sci 2016; 99:105-112. [PMID: 27931851 DOI: 10.1016/j.ejps.2016.11.028] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2016] [Revised: 11/14/2016] [Accepted: 11/29/2016] [Indexed: 01/02/2023]
Abstract
In this work, we propose as new wound dressing, the Spanish Broom fibers impregnated with vancomycin (VM) loaded chitosan nanoparticles. Spanish Broom fibers were extracted by patented method DiCoDe and the morphological, physical and mechanical properties were investigated. Chitosan nanoparticles were prepared by ionic gelation using different weight ratios between chitosan (CH) and tripolyphosphate (TPP). Nanoparticles were characterized in terms of size, zeta potential, yield, encapsulation efficiency, stability and drug release. Finally, the antibacterial activity against Staphylococcus aureus as well as in vitro cytotoxicity on HaCaT cells were evaluated. The best formulation CH/TPP 4:1 was selected based on the encapsulation efficiency and yield. Spanish Broom fibers impregnated with loaded nanoparticles showed an increased antibacterial activity against S. aureus compared to the same fibers containing VM without nanoparticles. Moreover, these fibers were not toxic to HaCaT keratinocytes cells. In conclusion, Spanish Broom fibers impregnated with VM loaded CH/TPP nanoparticles would appear to be a promising candidate for wound dressing application.
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Affiliation(s)
- Teresa Cerchiara
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127 Bologna, Italy.
| | - Angela Abruzzo
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127 Bologna, Italy
| | | | - Beatrice Vitali
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127 Bologna, Italy
| | - Renata De Rose
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, 87036 Arcavacata di Rende (CS), Italy
| | - Giuseppe Chidichimo
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, 87036 Arcavacata di Rende (CS), Italy
| | - Luca Ceseracciu
- Smart Materials, Istituto Italiano di Tecnologia, Via Morego, 30, 16163 Genova, Italy
| | | | - Bruno Saladini
- PolyCrystalLine SpA, Via F.S. Fabri 127/1, 40059, Medicina, Bologna, Italy
| | - Francesco Dalena
- Department of Chemistry and Chemical Technologies, University of Calabria, Via P. Bucci, 87036 Arcavacata di Rende (CS), Italy
| | - Federica Bigucci
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127 Bologna, Italy
| | - Barbara Luppi
- Department of Pharmacy and Biotechnologies, University of Bologna, Via San Donato 19/2, 40127 Bologna, Italy
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290
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Wolak M, Bojanowska E, Staszewska T, Ciosek J, Juszczak M, Drobnik J. The role of histamine in the regulation of the viability, proliferation and transforming growth factor β1 secretion of rat wound fibroblasts. Pharmacol Rep 2016; 69:314-321. [PMID: 28178593 DOI: 10.1016/j.pharep.2016.11.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2015] [Revised: 11/08/2016] [Accepted: 11/14/2016] [Indexed: 11/26/2022]
Abstract
BACKGROUND Inflammation mediators play a regulatory role in repair processes. The study will examine the influence of histamine on wound fibroblast metabolic activity, viability, proliferation, and TGFβ1 secretion. The study also will identify the histamine receptor involved in regulation of the tested repair processes. METHODS Fibroblasts were obtained from the granulation tissue of wounds or intact dermis of rats. The MTT and BrdU assays were used to examine the effect of histamine (10-8M-10-4M) on the viability and metabolic activity of fibroblasts, and on their proliferative capacity. The influence of histamine receptor antagonists (i.e., ketotifen, ranitidine, ciproxifan and JNJ7777120) and agonists (2-pyridylethlamine dihydrochloride, amthamine dihydrobromide) was also investigated. The TGFβ1 and histamine receptors H1 were evaluated by enzyme-linked immunosorbent assay. RESULTS Histamine significantly increased granulation tissue fibroblast viability and metabolic activity at 10-8 and 10-6M but did not change their proliferative activity. Only the blockade of the H1 receptor removed this effect of histamine. H1 receptor agonist (2-pyridylethlamine dihydrochloride) increased cell viability, thereby mimicking histamine action. Both Histamine (10-4M) and 2-pyridylethlamine dihydrochloride increased TGFβ1 concentration in cell culture medium. However, ketotifen blocked histamine-induced augmentation of TGFβ1. H1 receptor expression on wound fibroblasts was confirmed. CONCLUSION The regulatory influence of histamine on wound fibroblast function (viability/metabolic activity or secretion of TGFβ1) is dependent on H1 receptor stimulation. Contrary to wound fibroblasts, these cells express a very low level of H1 receptors when isolated from intact dermis and histamine is unable to modify their metabolic activity.
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Affiliation(s)
- Monika Wolak
- Department of Behavioral Pathophysiology, Chair of General and Experimental Pathology Medical University of Lodz, Łódź, Poland
| | - Ewa Bojanowska
- Department of Behavioral Pathophysiology, Chair of General and Experimental Pathology Medical University of Lodz, Łódź, Poland
| | - Teresa Staszewska
- Department of Behavioral Pathophysiology, Chair of General and Experimental Pathology Medical University of Lodz, Łódź, Poland
| | - Joanna Ciosek
- Laboratory of Connective Tissue Metabolism, Department of Neuropeptide Research, Chair of General and Experimental Pathology, Medical University of Lodz, Łódź, Poland
| | - Marlena Juszczak
- Department of Pathophysiology and Experimental Neuroendocrinology, Chair of General and Experimental Pathology, Medical University of Lodz, Łódź, Poland
| | - Jacek Drobnik
- Laboratory of Connective Tissue Metabolism, Department of Neuropeptide Research, Chair of General and Experimental Pathology, Medical University of Lodz, Łódź, Poland.
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291
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Qu J, Lu D, Guo H, Miao W, Wu G, Zhou M. PFKFB3 modulates glycolytic metabolism and alleviates endoplasmic reticulum stress in human osteoarthritis cartilage. Clin Exp Pharmacol Physiol 2016; 43:312-8. [PMID: 26718307 DOI: 10.1111/1440-1681.12537] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 12/22/2015] [Accepted: 12/27/2015] [Indexed: 11/29/2022]
Abstract
Glycolytic disorder has been demonstrated to be a major cause of osteoarthritis (OA) and chondrocyte dysfunction. The present work aimed to investigate the expression and role of the glycolytic regulator 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase 3 (PFKFB3) in OA cartilage. It was found that PFKFB3 expression was down-regulated in human OA cartilage tissues and in tumour necrosis factor (TNF)-α- or interleukin (IL)-1β-stimulated human chondrocytes. The glycolytic metabolism appeared as glucose utilization and adenosine triphosphate (ATP) generation, and lactate production was stunted in OA cartilage. However, the impaired glycolytic process in OA cartilage was improved by PFKFB3 overexpression, which was confirmed in TNF-α- or IL-1β-treated chondrocytes. Furthermore, the expressions of endoplasmic reticulum (ER) stress-associated genes including PERK, ATF3, IRE1, phosphorylated eIF2α (p-eIF2α) and MMP13 were enhanced in OA cartilage explants, while they were decreased by AdPFKFB3 transfection. PFKFB3 also modulated the expressions of PERK, ATF3, IRE1, p-eIF2α and MMP13 in tunicamycin-exposed chondrocytes. Additionally, PFKFB3 improved the cell viability of OA cartilage explants and chondrocytes through the PI3K/Akt/C/EBP homologous protein (CHOP) signalling pathway. The transfection of AdPFKFB3 also significantly reduced caspase 3 activation and promoted aggrecan and type II collagen expressions in OA cartilage explants and chondrocytes. In all, this study characterizes a novel role of PFKFB3 in glycolytic metabolism and ER stress of OA cartilage explants and chondrocytes. The study might provide a potential target for OA prevention or therapy.
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Affiliation(s)
- Jining Qu
- Department of Paediatric Orthopaedics, Honghui Hospital, Xi'an Jiaotong University, Xian, China
| | - Daigang Lu
- Department of Trauma, Honghui Hospital, Xi'an Jiaotong University, Xian, China
| | - Hua Guo
- Department of Paediatric Orthopaedics, Honghui Hospital, Xi'an Jiaotong University, Xian, China.,Department of Emergency, Honghui Hospital, Xi'an Jiaotong University, Xian, China
| | - Wusheng Miao
- Department of Paediatric Orthopaedics, Honghui Hospital, Xi'an Jiaotong University, Xian, China
| | - Ge Wu
- Department of Paediatric Orthopaedics, Honghui Hospital, Xi'an Jiaotong University, Xian, China
| | - Meifen Zhou
- Department of Paediatric Orthopaedics, Honghui Hospital, Xi'an Jiaotong University, Xian, China
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292
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Manghani C, Gupta A, Tripathi V, Rani V. Cardioprotective potential of curcumin against norepinephrine-induced cell death: a microscopic study. J Microsc 2016; 265:232-244. [PMID: 27779739 DOI: 10.1111/jmi.12492] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 09/07/2016] [Accepted: 09/18/2016] [Indexed: 01/01/2023]
Abstract
Cardiomyopathy and associated heart failure continues to be one of the most severe complications that threaten a large population. Curcumin, one of the three curcuminoids of the spice turmeric, is very well known for a multitude of health benefits and functions. Norepinephrine (NE), a catecholamine and also a stress hormone may cause the cardiomyocytes to develop increased sensitivity to death with its increasing concentrations. In this study, we investigated the cardioprotective effect of curcumin in NE-induced cardiac apoptosis using several fluorescent and nonfluorescent microscopic techniques like DAPI, PI, Giemsa, PicroSirius and TUNEL. The aim of the study was to assess the effect of curcumin in preventing the occurrence of features underlying apoptosis such as nuclear disruption, chromatin condensation, DNA fragmentation and alterations in mitochondrial membrane permeability. Our results show that curcumin protects the cardiomyocytes against apoptosis significantly and also helps them to revert to their normal physiological state. Hence, we propose that curcumin has the potential to act as a therapeutic agent for the attenuation of NE-induced cardiac cell death and modulation of apoptosis in H9c2 cardiomyocytes.
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Affiliation(s)
- C Manghani
- Department of Biotechnology, Jaypee Institute of Information Technology, Noida, Uttar Pradesh, India
| | - A Gupta
- Department of Biotechnology, Jaypee Institute of Information Technology, Noida, Uttar Pradesh, India
| | - V Tripathi
- Department of Biotechnology, Jaypee Institute of Information Technology, Noida, Uttar Pradesh, India
| | - V Rani
- Department of Biotechnology, Jaypee Institute of Information Technology, Noida, Uttar Pradesh, India
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293
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Chen X, Li Q, Kan XX, Wang YJ, Li YJ, Yang Q, Xiao HB, Chen Y, Weng XG, Cai WY, Zhu XX. Extract of Caulis Spatholobi, a novel blocker targeting tumor cell‑induced platelet aggregation, inhibits breast cancer metastasis. Oncol Rep 2016; 36:3215-3224. [PMID: 27779702 DOI: 10.3892/or.2016.5184] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 03/22/2016] [Indexed: 11/05/2022] Open
Abstract
Metastasis of breast cancer is the vital step for malignant progression. During such a process, hematogenous metastasis is an indispensable approach for the dissemination of cancer cells. A platelet, contributes to hypercoagulable state, and is also identified the crucial factor in the coagulation system for supporting metastasis. Therefore, the relationship of a platelet and a tumor cell plays a critical role in tumor cell metastasis. Consequently, inhibiting tumor cell‑induced platelet aggregation (TCIPA) is recongnized as a crucial target on suppression of tumor metastasis such as aspirin (ASA). Under such circumstance, here we report that, through dissociating the tumor‑platelet (T‑P) complex, 80% ethanol extracts of Caulis Spatholobi (SET) successfully alleviated the hypercoagulation state, thereby reducing tumor metastasis and improving the prospects of survival in breast cancer cell model. Through MTT and anti‑aggregation assay stimulated by ADP, we detected the optimum treatment time and the optimum dose of SET. By using confocal microscopy, we observed that SET can strongly block the formation of T‑P complex in vitro. The result was further quantified and confirmed by the FACS analysis. The fluorescent value of T‑P complex was obviously decreased in the drug‑treated groups. In vivo, 4T1 cells were injected through the mouse tail vein for dynamic visualization by small animal imaging system. The metastatic intensity was quantified and the survival curve was analyzed. Additionally, general observation and hematoxylin and eosin (H&E) staining of lung tissue was performed. SET exerted an obvious effect on the inhibition of metastasis and increasing the survival rate of mice. For the molecular mechanism study of anti‑TCIPA, zymography and RT‑PCR assay preliminarily revealed the molecular mechanism of SET in the regulation of P‑T interaction. Collectively, through drug efficacy identification and pharmacological revealing, we have obtained a promising candidate for the interference of breast metastasis by suppressing TCIPA, which will be beneficial for clinical cancer treatment.
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Affiliation(s)
- Xi Chen
- Capital Medical University School of Traditional Chinese Medicine, Beijing 100069, P.R. China
| | - Qi Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, P.R. China
| | - Xiao-Xi Kan
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, P.R. China
| | - Ya-Jie Wang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, P.R. China
| | - Yu-Jie Li
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, P.R. China
| | - Qing Yang
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, P.R. China
| | - Hong-Bin Xiao
- Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, Liaoning 116023, P.R. China
| | - Ying Chen
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, P.R. China
| | - Xiao-Gang Weng
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, P.R. China
| | - Wei-Yan Cai
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, P.R. China
| | - Xiao-Xin Zhu
- Capital Medical University School of Traditional Chinese Medicine, Beijing 100069, P.R. China
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294
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Tang Y, Zhang Y, Yang J, Nie J. Synthesis and characteristics of photopolymerized benzophenone. ACTA ACUST UNITED AC 2016. [DOI: 10.1002/pola.28386] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yunhui Tang
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
| | - Yuxuan Zhang
- Changzhou Advanced Materials Research Institute, Beijing University of Chemical Technology; Changzhou 213164 People's Republic of China
| | - Jinliang Yang
- Changzhou Advanced Materials Research Institute, Beijing University of Chemical Technology; Changzhou 213164 People's Republic of China
| | - Jun Nie
- State Key Laboratory of Chemical Resource Engineering; Beijing University of Chemical Technology; Beijing 100029 People's Republic of China
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295
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Wang G, Fu Y, Liu G, Ye Y, Zhang X. miR-218 Inhibits Proliferation, Migration, and EMT of Gastric Cancer Cells by Targeting WASF3. Oncol Res 2016; 25:355-364. [PMID: 27642088 PMCID: PMC7841020 DOI: 10.3727/096504016x14738114257367] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
MicroRNAs (miRNAs) play an important role in carcinogenesis. miR-218 is one of the most known miRNAs and has been demonstrated to inhibit progression in gastric cancer. However, the underlying molecular mechanism is not established. In this study, qRT-PCR and Western blot indicated that miR-218 was downregulated in gastric cancer cell lines SGC7901 and BGC823 compared to that in normal gastric epithelial cell line GES-1. MTT and wound scratch assays suggested that overexpression of miR-218 markedly suppressed cell proliferation, migration, and EMT of gastric cancer cells. Furthermore, we proved that WASF3 was a direct target of miR-218 by luciferase reporter assay, and restoration of WASF3 expression impairs miR-218-induced inhibition of proliferation, migration, and EMT in gastric cancer cells SGC7901. In summary, our results demonstrated that miR-218 functions as one of the tumor-suppressive miRNAs and inhibits gastric cancer tumorigenesis by targeting WASF3. miR-218 may serve as a potential therapeutic target for the treatment of gastric cancer.
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296
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Suwanjang W, Prachayasittikul S, Prachayasittikul V. Effect of 8-hydroxyquinoline and derivatives on human neuroblastoma SH-SY5Y cells under high glucose. PeerJ 2016; 4:e2389. [PMID: 27635352 PMCID: PMC5012261 DOI: 10.7717/peerj.2389] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Accepted: 07/29/2016] [Indexed: 12/21/2022] Open
Abstract
8-Hydroxyquinoline and derivatives exhibit multifunctional properties, including antioxidant, antineurodegenerative, anticancer, anti-inflammatory and antidiabetic activities. In biological systems, elevation of intracellular calcium can cause calpain activation, leading to cell death. Here, the effect of 8-hydroxyquinoline and derivatives (5-chloro-7-iodo-8-hydroxyquinoline or clioquinol and 8-hydroxy-5-nitroquinoline or nitroxoline) on calpain-dependent (calpain-calpastatin) pathways in human neuroblastoma (SH-SY5Y) cells was investigated. 8-Hydroxyquinoline and derivatives ameliorated high glucose toxicity in SH-SY5Y cells. The investigated compounds, particularly clioquinol, attenuated the increased expression of calpain, even under high-glucose conditions. 8-Hydroxyquinoline and derivatives thus adversely affected the promotion of neuronal cell death by high glucose via the calpain-calpastatin signaling pathways. These findings support the beneficial effects of 8-hydroxyquinolines for further therapeutic development.
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Affiliation(s)
- Wilasinee Suwanjang
- Center for Research and Innovation, Faculty of Medical Technology, Mahidol University , Bangkok , Thailand
| | - Supaluk Prachayasittikul
- Center of Data Mining and Biomedical Informatics, Faculty of Medical Technology, Mahidol University , Bangkok , Thailand
| | - Virapong Prachayasittikul
- Department of Clinical Microbiology and Applied Technology, Faculty of Medical Technology, Mahidol University , Bangkok , Thailand
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297
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Wen Y, Wang K, Yang K. Inhibiting the role of Skp2 suppresses cell proliferation and tumorigenesis of human gastric cancer cells via the upregulation of p27kip1. Mol Med Rep 2016; 14:3917-24. [PMID: 27572672 DOI: 10.3892/mmr.2016.5676] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Accepted: 05/31/2016] [Indexed: 11/06/2022] Open
Abstract
Gastric cancer is a malignant disease of the digestive system with high rates of incidence and mortality. S‑phase kinase‑associated protein 2 (Skp2) is a novel oncogene, which has been identified to be important in tumor progression and metastasis. In order to clarify the role of Skp2 in human gastric cancer, the present study detected the expression of Skp2 in human gastric cancer tissues, and investigated the molecular mechanism of Skp2 in the progression of gastric carcinoma. The results of the initial bioinformatics analysis showed that Skp2 was significantly upregulated in 31 specimens of primary gastric cancer from a UK patient cohort, and in 10 gastric cancer lines of a side population, compared with normal gastric tissues (P<0.01). Specimens from 47 patients with gastric cancer and 19 normal gastric tissue specimens were obtained and analyzed using western blot analysis. The positive rate of expression of Skp2 was 87.2%, indicating that the expression of Skp2 was observed in 41 specimens of the detected gastric cancer samples, whereas the positive rate of the expression of Skp2 was 5.6% in the normal gastric samples (P<0.01). In the human gastric cancer cell lines, the defective regulation of Skp2 or presence of an Skp2 inhibitor inhibited the proliferation of BGC‑823 and MKN‑45 cells. In addition, the Skp2 inhibitor suppressed the proliferation of gastric cancer cells in a time‑ and dose‑dependent manner. Furthermore, transfection with Skp2 short hairpin (sh)RNA or treatment with SKP inhibitor C1 for 48 and 72 h led to the accumulation of p27kip1 in Hela cells. Tumorigenicity experiments involving nude mice showed that interference of the expression of Skp2 inhibited the growth of the human gastric tumor cells in the nude mice, and the tumor weights and volumes in the Skp2 shRNA group were significantly lower, compared with those in the negative control shRNA group (P<0.01) and untreated group (P<0.01). Taken together, these data suggested that Skp2 acted as an oncogene in human gastric cancer, and that Skp2‑mediated p27kip1 degradation contributed to the progression of gastric cancer. Abrogating the effects of Skp2 may effectively inhibit the growth of gastric cancer cells, which may be useful as a novel target in the clinical treatment of gastric cancer.
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Affiliation(s)
- Yanguang Wen
- Department of The Second General Surgery, Third Xiangya Hospital, Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, P.R. China
| | - Kuansong Wang
- Department of Pathology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, P.R. China
| | - Kaiyan Yang
- Department of The Second General Surgery, Third Xiangya Hospital, Xiangya School of Medicine, Central South University, Changsha, Hunan 410013, P.R. China
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298
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Maleklou N, Allameh A, Kazemi B. Targeted delivery of vitamin D3-loaded nanoparticles to C6 glioma cell line increased resistance to doxorubicin, epirubicin, and docetaxel in vitro. In Vitro Cell Dev Biol Anim 2016; 52:989-1000. [PMID: 27503515 DOI: 10.1007/s11626-016-0072-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2016] [Accepted: 07/05/2016] [Indexed: 12/19/2022]
Abstract
In recent years, targeted delivery systems have been used along with combinatorial therapy to decrease drug resistance and increase cancer therapy efficacy. The anti-proliferative effects of vitamin D3 (VD3) on cancerous cells, such as C6 glioma, with active hedgehog pathways raised the question as to whether pre-targeting C6 glioma cells with VD3-loaded nanoparticles (VD3NPs) can enhance the anti-tumor effects of doxorubicin, epirobicin, and docetaxel on this drug-resistant cell line. Here, studying at cellular, nuclear, protein, and gene levels we demonstrated that VD3NP-doxorubicin and VD3NP-epirobicin combinations increased the probability of chemotherapy/radiotherapy resistance and cancer stem cell (CSC) properties in C6 glioma significantly (P < 0.05), compared to doxorubicin and epirobicin alone. However, VD3NP-docetaxel combination may have the potential in sensitizing C6 cells to ionizing irradiation, but this combination also increased the CSC properties and the probability of drug resistance significantly (P < 0.05), compared to docetaxel alone. Although our previous study showed that targeted delivery of VD3 reduced the rate of proliferation significantly (P < 0.05) in C6 glioma cells (a drug-resistant cell line), here we concluded that combinatorial therapy of exogenous VD3 with doxorubicin, epirobicin, and docetaxel not only did not lead to the enhancement of cytotoxic effects of the aforementioned drugs but also increased the cancerous characteristics in C6 glioma, in vitro.
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Affiliation(s)
- Nargess Maleklou
- Medical Physics and Biomedical Engineering Department, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Abdolamir Allameh
- Department of Clinical Biochemistry, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
| | - Bahram Kazemi
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
- Departments of Biotechnology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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299
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Yu X, Zhang Y, Yang M, Guo J, Xu W, Gao J, Li Y, Tao L. Cytotoxic effects of tebufenozide in vitro bioassays. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2016; 129:180-188. [PMID: 27043174 DOI: 10.1016/j.ecoenv.2016.03.025] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2015] [Revised: 03/17/2016] [Accepted: 03/23/2016] [Indexed: 06/05/2023]
Abstract
Tebufenozide is considered an environmentally friendly pesticide due to its specificity on target insects, but the effects on human are well studied. Studies on the toxicity of tebufenozide at molecular and cellular level is poorly understood. The present study reveals non-selective cytotoxic effects of tebufenozide, and the apoptotic mechanism induced by tebufenozide on HeLa and Tn5B1-4 cells. We demonstrate that the viability of HeLa and Tn5B1-4 cells is inhibited by tebufenozide in a time- and concentration-dependent manner. Intracellular biochemical assays showed that tebufenozide-induced apoptosis of two cell lines concurrent with a decrease in the mitochondrial membrane potential and an increase reactive oxygen species generation, the release of cytochrome-c into the cytosol and a marked activation of caspase-3. These results indicate that a mitochondrial-dependent intrinsic pathway contributes to tebufenozide induced apoptosis in HeLa and Tn5B1-4 cells and suggests potential threats to ecosystems and human health.
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Affiliation(s)
- Xiaoqin Yu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Yang Zhang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Mingjun Yang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Junfu Guo
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Wenping Xu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China
| | - Jufang Gao
- College of Life and Environmental Sciences, Shanghai Normal University, Shanghai 200234, China
| | - Yaxiao Li
- Department of Biology and Biochemistry, University of Bath, Claverton Down, Bath BA2 7AY, UK
| | - Liming Tao
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, China.
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Zare MR, Amin MM, Nikaeen M, Zare M, Bina B, Fatehizadeh A, Rahmani A, Ghasemian M. Simplification and sensitivity study of Alamar Blue bioassay for toxicity assessment in liquid media. DESALINATION AND WATER TREATMENT 2016; 57:10934-10940. [DOI: 10.1080/19443994.2015.1040853] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/21/2023]
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