1
|
Yu H, Tiemuer A, Yao X, Zuo M, Wang HY, Liu Y, Chen X. Mitochondria-specific near-infrared photoactivation of peroxynitrite upconversion luminescent nanogenerator for precision cancer gas therapy. Acta Pharm Sin B 2024; 14:378-391. [PMID: 38261812 PMCID: PMC10792980 DOI: 10.1016/j.apsb.2023.08.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/27/2023] [Accepted: 07/12/2023] [Indexed: 01/25/2024] Open
Abstract
Gas therapy is emerging as a highly promising therapeutic strategy for cancer treatment. However, there are limitations, including the lack of targeted subcellular organelle accuracy and spatiotemporal release precision, associated with gas therapy. In this study, we developed a series of photoactivatable nitric oxide (NO) donors NRh-R-NO (R = Me, Et, Bn, iPr, and Ph) based on an N-nitrosated upconversion luminescent rhodamine scaffold. Under the irradiation of 808 nm light, only NRh-Ph-NO could effectively release NO and NRh-Ph with a significant turn-on frequency upconversion luminescence (FUCL) signal at 740 nm, ascribed to lower N-N bond dissociation energy. We also investigated the involved multistage near-infrared-controlled cascade release of gas therapy, including the NO released from NRh-Ph-NO along with one NRh-Ph molecule generation, the superoxide anion O2⋅- produced by the photodynamic therapy (PDT) effect of NRh-Ph, and highly toxic peroxynitrite anion (ONOO‒) generated from the co-existence of NO and O2⋅-. After mild nano-modification, the nanogenerator (NRh-Ph-NO NPs) empowered with superior biocompatibility could target mitochondria. Under an 808 nm laser irradiation, NRh-Ph-NO NPs could induce NO/ROS to generate RNS, causing a decrease in the mitochondrial membrane potential and initiating apoptosis by caspase-3 activation, which further induced tumor immunogenic cell death (ICD). In vivo therapeutic results of NRh-Ph-NO NPs showed augmented RNS-potentiated gas therapy, demonstrating excellent biocompatibility and effective tumor inhibition guided by real-time FUCL imaging. Collectively, this versatile strategy defines the targeted RNS-mediated cancer therapy.
Collapse
Affiliation(s)
- Hui Yu
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Aliya Tiemuer
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Xufeng Yao
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Mingyuan Zuo
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Hai-Yan Wang
- School of Mechanical Engineering, Southeast University, Nanjing 211189, China
| | - Yi Liu
- Department of Biomedical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
| | - Xiaoyuan Chen
- Departments of Diagnostic Radiology, Surgery, Chemical and Biomolecular Engineering, and Biomedical Engineering, Yong Loo Lin School of Medicine and College of Design and Engineering, National University of Singapore, Singapore 119074, Singapore
- Clinical Imaging Research Centre, Centre for Translational Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117599, Singapore
- Nanomedicine Translational Research Program, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
- Institute of Molecular and Cell Biology, Agency for Science, Technology, and Research (A∗STAR), Proteos, Singapore 138673, Singapore
| |
Collapse
|
2
|
Savitri D, Wahyuni S, Bukhari A, Djawad K, Hatta M, Riyanto P, Bahar B, Wahab S, Hamid F, Rifai Y. Anti-inflammatory effects of banana ( Musa balbisiana) peel extract on acne vulgaris: In vivo and in silico study. J Taibah Univ Med Sci 2023; 18:1586-1598. [PMID: 37693819 PMCID: PMC10492217 DOI: 10.1016/j.jtumed.2023.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 06/13/2023] [Accepted: 07/20/2023] [Indexed: 09/12/2023] Open
Abstract
Objective Acne vulgaris (AV) is a common problem with a relatively high incidence rate among Asian people. The potential antimicrobial and anti-inflammatory properties of banana peels have been demonstrated in previous studies but have not been studied in cases of AV. Therefore, this study was aimed at investigating the protective effects of banana (Musa balbisiana) peel extract (MBPE) against AV. Methods Thirty rats were divided into five groups (n = 6 rats per group): an AV group, AV group treated with 0.15% MBPE, AV group administered 0.30% MBPE, AV group administered 0.60% MBPE, and AV group administered clindamycin (the standard drug treatment). We assessed nodule size, bacterial count, histopathology, and cytokine levels (IL-1α, IFN-γ, tumor necrosis factor (TNF)-α, and IL-8). Enzyme linked immunoassays were used to measure the cytokine levels. In addition, we performed molecular docking studies to determine the interactions between phytochemicals (trigonelline, vanillin, ferulic acid, isovanillic acid, rutin, and salsolinol) via the Toll-like receptor 2 (TLR2) and nuclear factor-kappa B (NF-κB) pathways. Results All MBPE treatment groups, compared with the AV group, showed suppression of both bacterial growth and proinflammatory cytokine production, as well as resolved tissue inflammation. The nodule size was significantly suppressed in the groups receiving the two highest doses of MBPE, compared with the AV group. However, the pharmacological action of MBPE remained inferior to that of clindamycin. Docking studies demonstrated that rutin was the phytocompound with the most negative interaction energy with TLR2 or NF-κB. Conclusions Our results indicated that MBPE has anti-inflammatory effects against AV, by suppressing nodule formation, inhibiting bacterial growth, and decreasing proinflammatory cytokine production.
Collapse
Affiliation(s)
- Dwiana Savitri
- Doctoral Program in Medical Science, Faculty of Medicine Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - Sitti Wahyuni
- Department of Parasitology, Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - Agussalim Bukhari
- Department of Nutrition, Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - Khairuddin Djawad
- Department of Dermatology and Venereology, Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - Mochammad Hatta
- Department of Molecular Biology and Immunology, Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - Puguh Riyanto
- Department of Dermatology and Venereology, Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - Burhanuddin Bahar
- Department of Health Administration and Policy Studies, Faculty of Public Health, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - Siswanto Wahab
- Department of Dermatology and Venereology, Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - Firdaus Hamid
- Department of Molecular Biology and Immunology, Faculty of Medicine, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| | - Yusnita Rifai
- Departement of Pharmacy, Hasanuddin University, Makassar, South Sulawesi, Indonesia
| |
Collapse
|
3
|
Elrherabi A, Bouhrim M, Abdnim R, Berraaouan A, Ziyyat A, Mekhfi H, Legssyer A, Bnouham M. Antihyperglycemic potential of the Lavandula stoechas aqueous extract via inhibition of digestive enzymes and reduction of intestinal glucose absorption. J Ayurveda Integr Med 2023; 14:100795. [PMID: 37683576 PMCID: PMC10492212 DOI: 10.1016/j.jaim.2023.100795] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2022] [Revised: 07/12/2023] [Accepted: 08/02/2023] [Indexed: 09/10/2023] Open
Abstract
BACKGROUND Diabetes mellitus is a widespread metabolic disorder affecting global populations. Lavandula stoechas from Moroccan traditional medicine is used for its potential anti-diabetic effects. OBJECTIVE This study aims to evaluate the antihyperglycemic impact of the aqueous extract of L. stoechas (AqLs) and explore its mechanisms. METHODS The study employed a glucose tolerance test (OGTT) on normal and diabetic Wistar rats, administering AqLs at 150 mg/kg. In vitro, AqLs was tested against α-glucosidase and α-amylase activities, confirmed in vivo using normal and Allx-diabetic rats. The extract's impact on intestinal d-glucose absorption was assessed using the jejunum segment perfusion technique at 250 mg/kg in situ. Albino mice were used to assess toxicity. RESULTS AqLs significantly reduced postprandial hyperglycemia (P < 0.001) due to glucose overload. It inhibited pancreatic α-amylase (IC50: 0.485 mg/mL) and intestinal α-glucosidase (IC50: 168 µg/mL) in vitro. Oral AqLs at 150 mg/kg reduced hyperglycemia induced by sucrose and starch in normal and diabetic rats. It also lowered (P < 0.001) intestinal glucose absorption in situ at 250 mg/kg. Oral acute toxicity tests on Albino mice indicated no adverse effects at different doses. CONCLUSION to summarize, L. stoechas has evident antihyperglycemic effects attributed to inhibiting intestinal glucose absorption and key monosaccharide digestion enzymes like α-amylase and α-glucosidase.
Collapse
Affiliation(s)
- Amal Elrherabi
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology, and Health, Faculty of Sciences, Mohammed First University, Oujda B.P. 717, Morocco
| | - Mohamed Bouhrim
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology, and Health, Faculty of Sciences, Mohammed First University, Oujda B.P. 717, Morocco
| | - Rhizlan Abdnim
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology, and Health, Faculty of Sciences, Mohammed First University, Oujda B.P. 717, Morocco
| | - Ali Berraaouan
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology, and Health, Faculty of Sciences, Mohammed First University, Oujda B.P. 717, Morocco
| | - Abderrahim Ziyyat
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology, and Health, Faculty of Sciences, Mohammed First University, Oujda B.P. 717, Morocco
| | - Hassane Mekhfi
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology, and Health, Faculty of Sciences, Mohammed First University, Oujda B.P. 717, Morocco
| | - Abdelkhaleq Legssyer
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology, and Health, Faculty of Sciences, Mohammed First University, Oujda B.P. 717, Morocco
| | - Mohamed Bnouham
- Laboratory of Bioresources, Biotechnology, Ethnopharmacology, and Health, Faculty of Sciences, Mohammed First University, Oujda B.P. 717, Morocco.
| |
Collapse
|
4
|
Denis L, Bodard S, Hingot V, Chavignon A, Battaglia J, Renault G, Lager F, Aissani A, Hélénon O, Correas JM, Couture O. Sensing ultrasound localization microscopy for the visualization of glomeruli in living rats and humans. EBioMedicine 2023; 91:104578. [PMID: 37086650 PMCID: PMC10149190 DOI: 10.1016/j.ebiom.2023.104578] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 04/03/2023] [Accepted: 04/03/2023] [Indexed: 04/24/2023] Open
Abstract
BACKGROUND Estimation of glomerular function is necessary to diagnose kidney diseases. However, the study of glomeruli in the clinic is currently done indirectly through urine and blood tests. A recent imaging technique called Ultrasound Localization Microscopy (ULM) has appeared. It is based on the ability to record continuous movements of individual microbubbles in the bloodstream. Although ULM improved the resolution of vascular imaging up to tenfold, the imaging of the smallest vessels had yet to be reported. METHODS We acquired ultrasound sequences from living humans and rats and then applied filters to divide the data set into slow-moving and fast-moving microbubbles. We performed a double tracking to highlight and characterize populations of microbubbles with singular behaviors. We decided to call this technique "sensing ULM" (sULM). We used post-mortem micro-CT for side-by-side confirmation in rats. FINDINGS In this study, we report the observation of microbubbles flowing in the glomeruli in living humans and rats. We present a set of analysis tools to extract quantitative information from individual microbubbles, such as remanence time or normalized distance. INTERPRETATION As glomeruli play a key role in kidney function, it would be possible that their observation yields a deeper understanding of the kidney. It could also be a tool to diagnose kidney diseases in patients. More generally, it will bring imaging capabilities closer to the functional units of organs, which is a key to understand most diseases, such as cancer, diabetes, or kidney failures. FUNDING This study was funded by the European Research Council under the European Union Horizon H2020 program (ERC Consolidator grant agreement No 772786-ResolveStroke).
Collapse
Affiliation(s)
- Louise Denis
- Sorbonne Université, CNRS, INSERM Laboratoire d'Imagerie Biomédicale, F-75006, Paris, France.
| | - Sylvain Bodard
- Sorbonne Université, CNRS, INSERM Laboratoire d'Imagerie Biomédicale, F-75006, Paris, France; AP-HP, Hôpital Necker Enfants Malades, Service d'Imagerie Adulte, F-75015, Paris, France; Université de Paris Cité, F-75006, Paris, France
| | - Vincent Hingot
- Sorbonne Université, CNRS, INSERM Laboratoire d'Imagerie Biomédicale, F-75006, Paris, France
| | - Arthur Chavignon
- Sorbonne Université, CNRS, INSERM Laboratoire d'Imagerie Biomédicale, F-75006, Paris, France
| | - Jacques Battaglia
- Sorbonne Université, CNRS, INSERM Laboratoire d'Imagerie Biomédicale, F-75006, Paris, France
| | - Gilles Renault
- Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Franck Lager
- Université de Paris, Institut Cochin, INSERM, CNRS, F-75014, Paris, France
| | - Abderrahmane Aissani
- Sorbonne Université, CNRS, INSERM Laboratoire d'Imagerie Biomédicale, F-75006, Paris, France
| | - Olivier Hélénon
- AP-HP, Hôpital Necker Enfants Malades, Service d'Imagerie Adulte, F-75015, Paris, France; Université de Paris Cité, F-75006, Paris, France
| | - Jean-Michel Correas
- Sorbonne Université, CNRS, INSERM Laboratoire d'Imagerie Biomédicale, F-75006, Paris, France; AP-HP, Hôpital Necker Enfants Malades, Service d'Imagerie Adulte, F-75015, Paris, France; Université de Paris Cité, F-75006, Paris, France
| | - Olivier Couture
- Sorbonne Université, CNRS, INSERM Laboratoire d'Imagerie Biomédicale, F-75006, Paris, France
| |
Collapse
|
5
|
Omoboyowa DA, Agoi MD, Shodehinde SA, Saibu OA, Saliu JA. Antidiabetes study of Spondias mombin (Linn) stem bark fractions in high-sucrose diet-induced diabetes in Drosophila melanogaster. J Taibah Univ Med Sci 2023; 18:663-675. [PMID: 36845998 PMCID: PMC9947098 DOI: 10.1016/j.jtumed.2023.01.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/29/2022] [Accepted: 01/18/2023] [Indexed: 01/30/2023] Open
Abstract
Objective The onset of insulin resistant diabetes has been associated with a high-sucrose diet in vertebrates and invertebrates. However, various parts of Spondias mombin reportedly possess antidiabetic potential. However, the antidiabetic efficacy of S. mombin stem bark in high-sucrose diet-induced Drosophila melanogaster model has not been explored. In this study, the antidiabetic and antioxidant effects of the solvent fractions of S. mombin stem bark were evaluated using in vitro, in vivo, and in silico methods. Methods Successive fractionation of S. mombin stem bark ethanol extract was performed; the resulting fractions were subjected to in vitro antioxidant and antidiabetic assays using standard protocols. The active compounds identified from the high-performance liquid chromatography (HPLC) study of the n-butanol fraction were docked against the active site of Drosophila α-amylase using AutoDoc Vina. The n-butanol and ethyl acetate fractions of the plant were incorporated into the diet of diabetic and nondiabetic flies to study the in vivo antidiabetic and antioxidant properties. Results The results obtained revealed that n-butanol and ethyl acetate fractions had the highest in vitro anti-oxidant capacity by inhibiting 2,2-diphenyl-1-picrylhydrazyl (DPPH), ferric reducing antioxidant power, and hydroxyl radical followed by significant inhibition of α-amylase. HPLC analysis revealed the identification of eight compounds with quercetin having the highest peak followed by rutin, rhamnetin, chlorogenic acid, zeinoxanthin, lutin, isoquercetin, and rutinose showing the lowest peak. The fractions restored the glucose and antioxidant imbalance in diabetic flies, which is comparable with the standard drug (metformin). The fractions were also able to upregulate the mRNA expression of insulin-like peptide 2, insulin receptor, and ecdysone-inducible gene 2 in diabetic flies. The in silico studies revealed the inhibitory potential of active compounds against α-amylase with isoquercetin, rhamnetin, rutin, quercetin, and chlorogenic acid having higher binding affinity than the standard drug (acarbose). Conclusion Overall, the butanol and ethyl acetate fractions of S. mombin stem bark ameliorate type 2 diabetes in Drosophila. However, further studies are needed in other animal models to confirm the antidiabetes effect of the plant.
Collapse
Affiliation(s)
- Damilola A. Omoboyowa
- Department of Biochemistry, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria,Corresponding address. Department of Biochemistry, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria
| | - Mary D. Agoi
- Department of Biochemistry, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria
| | - Sidiqat A. Shodehinde
- Department of Biochemistry, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria
| | - Oluwatosin A. Saibu
- Department of Environmental Toxicology, Universitat Duisburg-Essen, NorthRhine-Westphalia, Germany
| | - Jamiyu A. Saliu
- Department of Biochemistry, Adekunle Ajasin University, Akungba-Akoko, Ondo State, Nigeria
| |
Collapse
|
6
|
Jimenez-Kurlander L, Duncan CN. Gene Therapy for Pediatric Neurologic Disease. Hematol Oncol Clin North Am 2022; 36:853-864. [PMID: 35760664 DOI: 10.1016/j.hoc.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Pediatric lysosomal and peroxisomal storage disorders, leukodystrophies, and motor neuron diseases can have devastating neurologic manifestations. Despite efforts to exploit cross-correction to treat these monogenic disorders for several decades, definitive treatment has yet to be identified. This review explores recent attempts to transduce autologous hematopoietic stem cells with functional gene or provide therapeutic gene in vivo. Specifically, we discuss the rationale behind efforts to treat pediatric neurologic disorders with gene therapy, outline the specific disorders that have been targeted at this time, and review recent and current clinical investigations with attention to the future direction of therapy efforts.
Collapse
Affiliation(s)
- Lauren Jimenez-Kurlander
- Department of Pediatric Hematology and Oncology, Boston Children's Hospital, Boston, MA 02115, USA; Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA
| | - Christine N Duncan
- Department of Pediatric Hematology and Oncology, Boston Children's Hospital, Boston, MA 02115, USA; Department of Pediatric Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA.
| |
Collapse
|
7
|
Dassonville-Klimpt A, Schneider J, Damiani C, Tisnerat C, Cohen A, Azas N, Marchivie M, Guillon J, Mullié C, Agnamey P, Totet A, Dormoi J, Taudon N, Pradines B, Sonnet P. Design, synthesis, and characterization of novel aminoalcohol quinolines with strong in vitro antimalarial activity. Eur J Med Chem 2021; 228:113981. [PMID: 34782182 DOI: 10.1016/j.ejmech.2021.113981] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 11/04/2021] [Accepted: 11/06/2021] [Indexed: 12/16/2022]
Abstract
Malaria is the fifth most lethal parasitic infections in the world. Herein, five new series of aminoalcohol quinolines including fifty-two compounds were designed, synthesized and evaluated in vitro against Pf3D7 and PfW2 strains. Among them, fourteen displayed IC50 values below or near of 50.0 nM whatever the strain with selectivity index often superior to 100.17b was found as a promising antimalarial candidate with IC50 values of 14.9 nM and 11.0 nM against respectively Pf3D7 and PfW2 and a selectivity index higher than 770 whatever the cell line is. Further experiments were achieved to confirm the safety and to establish the preliminary ADMET profile of compound 17b before the in vivo study performed on a mouse model of P. berghei ANKA infection. The overall data of this study allowed to establish new structure-activity relationships and the development of novel agents with improved pharmacokinetic properties.
Collapse
Affiliation(s)
- A Dassonville-Klimpt
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France.
| | - J Schneider
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France
| | - C Damiani
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France
| | - C Tisnerat
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France
| | - A Cohen
- Université Aix-Marseille, IRD, AP-HM, SSA, VITROME, IHU Méditerranée Infection, Marseille, France
| | - N Azas
- Université Aix-Marseille, IRD, AP-HM, SSA, VITROME, IHU Méditerranée Infection, Marseille, France
| | - M Marchivie
- CNRS, Univ. Bordeaux, Bordeaux INP, ICMCB, UMR 5026, F- 33600 Pessac, France
| | - J Guillon
- Université de Bordeaux, Laboratoire ARNA, UFR des Sciences Pharmaceutiques, Bordeaux, France; INSERM U1212, UMR CNRS 5320, Laboratoire ARNA, Bordeaux, France
| | - C Mullié
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France
| | - P Agnamey
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France
| | - Anne Totet
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France
| | - J Dormoi
- Unité parasitologie et entomologie, Département de microbiologie et de maladies infectieuses, Institut de recherche biomédicale des armées, Marseille, France; Aix-Marseille Univ, IRD, SSA, AP-HM, VITROME, Marseille, France; IHU Méditerranée Infection, Marseille, France
| | - N Taudon
- Unité de Développements Analytiques et Bioanalyse, IRBA, Brétigny-sur-Orge, France
| | - B Pradines
- Unité parasitologie et entomologie, Département de microbiologie et de maladies infectieuses, Institut de recherche biomédicale des armées, Marseille, France; Aix-Marseille Univ, IRD, SSA, AP-HM, VITROME, Marseille, France; IHU Méditerranée Infection, Marseille, France; Centre national de référence du paludisme, Marseille, France
| | - P Sonnet
- Université de Picardie Jules Verne, AGIR, UFR de Pharmacie, Amiens, UR, 4294, France.
| |
Collapse
|
8
|
Iwamoto K, Yamazaki T, Sugamoto K, Tomita T. Comparison of in vivo kinematics of total knee arthroplasty between cruciate retaining and cruciate substituting insert. Asia Pac J Sports Med Arthrosc Rehabil Technol 2021; 26:47-52. [PMID: 34722162 PMCID: PMC8521180 DOI: 10.1016/j.asmart.2021.10.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 09/22/2021] [Accepted: 10/04/2021] [Indexed: 11/25/2022]
Abstract
Background The decision to choose cruciate retaining (CR) insert or cruciate substituting (CS) insert during total knee arthroplasty (TKA) remains a controversial issue. We hypothesized that there are different knee kinematics between CR and CS inserts and that a raised anterior lip design would offer a potential minimization of the paradoxical movement and provide joint stability. The objective of this study was to evaluate and compare kinematics of a CR and CS TKA of the same single-radius design. Methods We investigated the in vivo knee kinematics of 20 knees with a CR TKA (10 knees in the CR insert and 10 knees in the CS insert). Patients were examined during deep knee flexion using fluoroscopy and femorotibial motion was determined using a 2- to 3-dimensional registration technique, which used computer-assisted design models to reproduce the spatial positions of the femoral and tibial components. We evaluated the knee range of motion (ROM), femoral axial rotation relative to the tibial component, anteroposterior translation, and kinematic pathway of the nearest point of the medial and lateral femoral condyles on the tibial tray. Results The average ROM was 121.0 ± 17.3° in CR and 110.8 ± 12.4° in CS. The amount of femoral axial rotation was 7.2 ± 3.9° in CR, and 7.4 ± 2.7° in CS. No significant difference was observed in the amount of anterior translation between CR and CS. The CR and CS inserts had a similar kinematic pattern up to 100° flexion that was central pivot up to 70° flexion and then paradoxical anterior femoral movement until 100° flexion. Conclusion The present study demonstrated that there was no significant difference between the inserts in knee kinematics. These kinematic results suggested that the increased anterior lip could not control anterior movement in the CS insert.
Collapse
Affiliation(s)
- Keiji Iwamoto
- Department of Orthopedic Surgery, National Hospital Organization Osaka National Hospital, Osaka, Japan
| | - Takaharu Yamazaki
- Department of Information Systems, Saitama Institute of Technology, Fukaya, Saitama, Japan
| | - Kazuomi Sugamoto
- Department of Orthopaedic Biomaterial Science, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Tetsuya Tomita
- Department of Orthopaedic Biomaterial Science, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| |
Collapse
|
9
|
Behr M, Zhou J, Xu B, Zhang H. In vivo delivery of CRISPR-Cas9 therapeutics: Progress and challenges. Acta Pharm Sin B 2021; 11:2150-2171. [PMID: 34522582 PMCID: PMC8424283 DOI: 10.1016/j.apsb.2021.05.020] [Citation(s) in RCA: 78] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 03/21/2021] [Accepted: 03/30/2021] [Indexed: 02/08/2023] Open
Abstract
Within less than a decade since its inception, CRISPR-Cas9-based genome editing has been rapidly advanced to human clinical trials in multiple disease areas. Although it is highly anticipated that this revolutionary technology will bring novel therapeutic modalities to many diseases by precisely manipulating cellular DNA sequences, the low efficiency of in vivo delivery must be enhanced before its therapeutic potential can be fully realized. Here we discuss the most recent progress of in vivo delivery of CRISPR-Cas9 systems, highlight innovative viral and non-viral delivery technologies, emphasize outstanding delivery challenges, and provide the most updated perspectives.
Collapse
|
10
|
Ranasinghe KNK, Premarathna AD, Mahakapuge TAN, Wijesundera KK, Ambagaspitiya AT, Jayasooriya AP, Kularatne SAM, Rajapakse RPVJ. In vivo anticancer effects of Momordica charantia seed fat on hepatocellular carcinoma in a rat model. J Ayurveda Integr Med 2021; 12:435-42. [PMID: 34275705 DOI: 10.1016/j.jaim.2021.03.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2020] [Revised: 02/26/2021] [Accepted: 03/01/2021] [Indexed: 11/21/2022] Open
Abstract
Background Momordica charantia or bitter melon is a well-known vegetable with a number of therapeutic actions in Ayurvedic medicine. Alpha-eleostearic acid, a conjugated trienoic fatty acid present in bitter melon is proven to have anticancer properties. Crude seed oil from local bitter melon varieties could be an effective and economical anticancer therapy. Objective(s) The study was conducted to evaluate the anticancer effect of the crude oil from the seeds of Matale green variety of bitter melon on a hepatocellular carcinoma-induced rat model. Materials and methods Hepatocellular carcinoma (HCC) was experimentally induced in Wistar rats. Crude seed oil of Matale green bitter melon (MGBM) was supplemented to one treatment group in concurrence with carcinoma induction and to another treatment group after the development of carcinoma. After 168 days, gross morphological, histopathological, biochemical, hematological and gene-expression analysis of treated and control groups were performed. Results Oral supplementation of MGBM seed oil showed a statistically significant reduction (p < 0.05) in the average number, diameter and area of hepatic dysplastic nodules and a reduction in the size of histopathological neoplastic lesions in both treatment groups compared to the non-treated control group. The expression of tumor suppressor gene p53 and anti-apoptotic gene Bcl-2 were significantly increased while the expression of apoptotic gene caspase 3 was significantly reduced in the treatment group when MGBM supplementation was in concurrence with carcinogenesis (p < 0.05). Conclusion Crude seed oil from the MGBM has anticancer effects against experimentally induced HCC in Wistar rats, specially when supplemented in concurrence with carcinoma induction.
Collapse
|
11
|
Mufty H, Van den Eynde J, Steenackers HP, Metsemakers WJ, Meuris B, Fourneau I. A systematic review of preclinical data regarding commercial silver-coated vascular grafts. J Vasc Surg 2021; 74:1386-1393.e1. [PMID: 34019984 DOI: 10.1016/j.jvs.2021.04.055] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 04/16/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Vascular graft infection (VGI) is a serious complication with high mortality and morbidity rates. Several measures could be taken to decrease this risk, including the use of silver-containing vascular grafts. However, to date, no clinical advantages have been reported. This study reviews the outcome of preclinical studies focusing on the role of commercially available silver-coated grafts in the prevention of VGI. METHODS A systematic review was performed with a focus on the preclinical role of commercially available silver-coated vascular grafts in the prevention and treatment of VGI. A comprehensive search was conducted in Medline, Embase, and Web of Science. RESULTS Nine in vitro and five in vivo studies were included. Two commercial grafts were used (INTERGARD SILVER and Silver Graft). In vitro studies used both gram-positive and gram-negative strains. A positive antimicrobial effect was observed in seven of nine studies (77.8%). A delayed antifungal effect against Candida species was observed in vitro, but disappeared when adding serum proteins. In vivo studies witnessed a microbicidal effect in two out of five studies (40%), but only tested a single causative pathogen (ie, Staphylococcus aureus). CONCLUSIONS Both in vitro and in vivo studies demonstrated conflicting and mixed results concerning the antimicrobial efficacy of commercially available silver-containing grafts in the prevention of VGI. In general, the study setup was heterogeneous in the different articles. Given the lack of convincing preclinical evidence and their poor performance in clinical studies, more data are needed at this time to guide the appropriate use of silver grafts.
Collapse
Affiliation(s)
- Hozan Mufty
- Department of Vascular Surgery, University Hospitals Leuven, Leuven, Belgium; Department of Cardiovascular Sciences, Research Unit of Vascular Surgery, KU Leuven, Leuven, Belgium.
| | - Jef Van den Eynde
- Department of Vascular Surgery, University Hospitals Leuven, Leuven, Belgium; Department of Cardiovascular Sciences, Research Unit of Vascular Surgery, KU Leuven, Leuven, Belgium
| | - Hans P Steenackers
- Department of Microbial and Molecular Systems, Centre of Microbial and Plant Genetics, KU Leuven, Leuven, Belgium
| | - Willem-Jan Metsemakers
- Department of Trauma Surgery, University Hospitals Leuven, Leuven, Belgium; Department of Development and Regeneration, KU Leuven, Leuven, Belgium
| | - Bart Meuris
- Department of Cardiovascular Sciences, Research Unit of Vascular Surgery, KU Leuven, Leuven, Belgium; Department of Cardiac surgery, University Hospitals Leuven, Leuven, Belgium
| | - Inge Fourneau
- Department of Vascular Surgery, University Hospitals Leuven, Leuven, Belgium; Department of Cardiovascular Sciences, Research Unit of Vascular Surgery, KU Leuven, Leuven, Belgium
| |
Collapse
|
12
|
Lehloenya RJ, Peter JG, Copascu A, Trubiano JA, Phillips EJ. Delabeling Delayed Drug Hypersensitivity: How Far Can You Safely Go? J Allergy Clin Immunol Pract 2020; 8:2878-2895.e6. [PMID: 33039012 DOI: 10.1016/j.jaip.2020.07.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 07/01/2020] [Accepted: 07/08/2020] [Indexed: 12/17/2022]
Abstract
Delayed immune-mediated adverse drug reactions (IM-ADRs) are defined as reactions occurring more than 6 hours after dosing. They include heterogeneous clinical phenotypes that are typically T-cell-mediated reactions with distinct mechanisms across a wide spectrum of severity from benign exanthems through to life-threatening cutaneous or organ-specific diseases. For mild reactions such as benign exanthem, considerations for delabeling are similar to immediate reactions and may include a graded or single-dose drug challenge with or without preceding skin or patch testing. Evaluation of challenging cases such as the patient who is on multiple drugs at the time a severe delayed IM-ADR occurs should prioritize clinical ascertainment of the most likely phenotype and implicated drug(s). Although not widely available and validated, procedures such as patch testing, delayed intradermal skin testing, and laboratory-based functional drug assays or genetic (human leukocyte antigen) testing may provide valuable information to further help risk stratify patients and identify the likely implicated and/or cross-reactive drug(s). The decision to use a drug challenge as a diagnostic or delabeling tool in a patient with a severe delayed IM-ADR should weigh the risk-benefit ratio, balancing the severity and priority for the treatment of the underlying, and the availability of alternative efficacious and safe treatments.
Collapse
|
13
|
Fowler CF, Madularu D, Dehghani M, Devenyi GA, Near J. Longitudinal quantification of metabolites and macromolecules reveals age- and sex-related changes in the healthy Fischer 344 rat brain. Neurobiol Aging 2021; 101:109-122. [PMID: 33610061 DOI: 10.1016/j.neurobiolaging.2020.12.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Revised: 10/16/2020] [Accepted: 12/09/2020] [Indexed: 12/19/2022]
Abstract
Normal aging is associated with numerous biological changes, including altered brain metabolism and tissue chemistry. In vivo characterization of the neurochemical profile during aging is possible using magnetic resonance spectroscopy, a powerful noninvasive technique capable of quantifying brain metabolites involved in physiological processes that become impaired with age. A prominent macromolecular signal underlies those of brain metabolites and is particularly visible at high fields; parameterization of this signal into components improves quantification and expands the number of biomarkers comprising the neurochemical profile. The present study reports, for the first time, the simultaneous absolute quantification of brain metabolites and individual macromolecules in aging male and female Fischer 344 rats, measured longitudinally using proton magnetic resonance spectroscopy at 7 T. We identified age- and sex-related changes in neurochemistry, with prominent differences in metabolites implicated in anaerobic energy metabolism, antioxidant defenses, and neuroprotection, as well as numerous macromolecule changes. These findings contribute to our understanding of the neurobiological processes associated with healthy aging, critical for the proper identification and management of pathologic aging trajectories. This article is part of the Virtual Special Issue titled COGNITIVE NEUROSCIENCE OF HEALTHY AND PATHOLOGICAL AGING. The full issue can be found on ScienceDirect athttps://www.sciencedirect.com/journal/neurobiology-of-aging/special-issue/105379XPWJP.
Collapse
Affiliation(s)
- Caitlin F Fowler
- Department of Biological and Biomedical Engineering, McGill University, Montreal, Canada; Centre d'Imagerie Cérébrale, Douglas Mental Health University Institute, Verdun, Canada.
| | - Dan Madularu
- Centre d'Imagerie Cérébrale, Douglas Mental Health University Institute, Verdun, Canada; Department of Psychology, Center for Translational NeuroImaging, Northeastern University, Boston, MA, USA; Department of Psychiatry, McGill University, Montreal, Canada
| | - Masoumeh Dehghani
- Centre d'Imagerie Cérébrale, Douglas Mental Health University Institute, Verdun, Canada; Department of Psychiatry, McGill University, Montreal, Canada
| | - Gabriel A Devenyi
- Centre d'Imagerie Cérébrale, Douglas Mental Health University Institute, Verdun, Canada; Department of Psychiatry, McGill University, Montreal, Canada
| | - Jamie Near
- Department of Biological and Biomedical Engineering, McGill University, Montreal, Canada; Centre d'Imagerie Cérébrale, Douglas Mental Health University Institute, Verdun, Canada; Department of Psychiatry, McGill University, Montreal, Canada
| |
Collapse
|
14
|
Shang FF, Wang JY, Xu Q, Deng H, Guo HY, Jin X, Li X, Shen QK, Quan ZS. Design, synthesis of novel celastrol derivatives and study on their antitumor growth through HIF-1α pathway. Eur J Med Chem 2021; 220:113474. [PMID: 33930802 DOI: 10.1016/j.ejmech.2021.113474] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/09/2021] [Accepted: 04/09/2021] [Indexed: 12/16/2022]
Abstract
Four series of hypoxia-inducible factor-1 alpha (HIF-1α) functioning derivatives stemming from modifications to the C-29 carboxyl group of celastrol were designed and synthesized, and their anticancer activities were evaluated. To address the structure and activity relationship of each derivative, extensive structural changes were made. HRE luciferase reporter assay demonstrated that 12 modified compounds showed superior HIF-1α inhibitory activity. Among them, compound C6 exhibited the best features: firstly, the strongest HIF-1α inhibitory activity (IC50 = 0.05 μM, 5-fold higher than that of celastrol); secondly, lower cytotoxicity (22-fold lower, C6-16.85 μM vs celastrol-0.76 μM). Thus, the safety factor of C6 was about 112 times higher than that of celastrol. Western blot assay indicated that C6 may inhibit the expression of HIF-1α protein in cells. Additionally, C6 hindered tumor cell cloning, migration and induced cell apoptosis. It is worth mentioning that in the mouse tumor xenograft model, C6 (10 mg/kg) displayed good antitumor activity in vivo, showing a better inhibition rate (74.03%) than the reference compound 5-fluorouracil (inhibition rate, 59.58%). However, the celastrol treatment group experienced collective death after four doses of the drug. Moreover, C6 minimally affected the mouse weight, indicating that its application in vivo has little toxic effect. H&E staining experiments show that it could also exacerbate the degree of tumor cell damage. The results of water solubility experiment show that the solubility of C6 is increased by 1.36 times than that of celastrol. In conclusion, C6 is a promising antitumor agent through HIF-1α pathway.
Collapse
Affiliation(s)
- Fan-Fan Shang
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Jing Ying Wang
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Qian Xu
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Hao Deng
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Hong-Yan Guo
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Xuejun Jin
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China
| | - Xiaoting Li
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China; Department of Pharmaceutical Analysis, Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang, 110016, China.
| | - Qing-Kun Shen
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China.
| | - Zhe-Shan Quan
- Key Laboratory of Natural Medicines of the Changbai Mountain, Ministry of Education, College of Pharmacy, Yanbian University, Yanji, 133002, China.
| |
Collapse
|
15
|
Wu H, Ren J, Zhao L, Li Z, Ye W, Yang Y, Wang J, Bian J. Identification of novel androgen receptor degrading agents to treat advanced prostate cancer. Eur J Med Chem 2021; 217:113376. [PMID: 33756125 DOI: 10.1016/j.ejmech.2021.113376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/25/2021] [Accepted: 03/07/2021] [Indexed: 12/21/2022]
Abstract
Prostate cancer (PCa) is one of the most common malignancies affecting men worldwide. Androgen receptor (AR) has been a target of PCa treatment for nearly six decades. AR antagonists/degraders can effectively treat PCa caused by increased AR overexpression. However, all approved AR antagonists have similar chemical structures and exhibit the same mode of action on the protein. Although initially effective, resistance to these AR antagonists usually develops. Therefore, this calls for the identification of novel chemical structures of AR antagonists to overcome the resistance. Herein, we employed the synergetic combination of virtual and experimental screening to identify a flavonoid compound which not only effectively inhibits AR transcriptional activity, but also induces the degradation of the protein. Based on this compound, we designed and synthesized a series of derivatives. We discovered that the most potent compound 10e could effectively inhibit AR transcriptional activity, and possessed a profound ability to cause degradation of both full length- and ARv7 truncated forms of human AR. Notably, 10e efficiently inhibited the growth of ARv7 dependent prostate cancer cell-lines, which are completely resistant to all current anti-androgens. Compound 10e also showed strong antitumor activity in the LNCaP (androgen dependent prostate cancer cell line) in vivo xenograft model. These results provide a foundation for the development of a new class of AR antagonists.
Collapse
Affiliation(s)
- Hongxi Wu
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Jie Ren
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Lulu Zhao
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Zhiyu Li
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Wanli Ye
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Yong Yang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Jubo Wang
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Jinlei Bian
- Jiangsu Key Laboratory of Drug Design and Optimization, Department of Medicinal Chemistry, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China.
| |
Collapse
|
16
|
Jiang Y, Liu Y, Han F, Zhou J, Zhang X, Xu J, Yu Z, Zhao S, Gao F, Zhao H. Loss of GM130 does not impair oocyte meiosis and embryo development in mice. Biochem Biophys Res Commun 2020; 532:336-340. [PMID: 32873390 DOI: 10.1016/j.bbrc.2020.08.055] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 08/19/2020] [Indexed: 01/23/2023]
Abstract
Golgi matrix protein 130 (GM130), encoded by GOLGA2, is the classical marker of the Golgi apparatus. It plays important roles in various mitotic events, such as interacting with importin-alpha and liberating spindle assembly factor TPX2 to regulate mitotic spindle formation. A previous study showed that in vitro knockdown of GM130 could regulate the meiotic spindle pole assembly. In the current study, we found that knockout (KO) mice progressively died, had a small body size and were completely infertile. Furthermore, we constructed an oocyte-specific GM130 knockout mouse model (GM130-ooKO) driven by Gdf9-Cre. Through breeding assays, we found that the GM130-ooKO mice showed similar fecundity as control mice. During superovulation assays, the KO and GM130-ooKO mice had comparable numbers of ovulated eggs, oocyte maturation rates and normal polar bodies, similar to the control groups. Thus, this study indicated that deletion of GM130 might have a limited impact on the maturation and morphology of oocytes. This might due to more than one golgin sharing the same function, with others compensating for the loss of GM130.
Collapse
Affiliation(s)
- Yonghui Jiang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250001, China; Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 250012, China
| | - Yue Liu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250001, China; Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 250012, China
| | - Feng Han
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Science, Beijing, 100101, China
| | - Jingjing Zhou
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Science, Beijing, 100101, China
| | - Xinze Zhang
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250001, China; Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 250012, China
| | - Junting Xu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250001, China; Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 250012, China
| | - Zhiheng Yu
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250001, China; Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 250012, China
| | - Shigang Zhao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250001, China; Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 250012, China
| | - Fei Gao
- State Key Laboratory of Reproductive Biology, Institute of Zoology, Chinese Academy of Science, Beijing, 100101, China.
| | - Han Zhao
- Center for Reproductive Medicine, Cheeloo College of Medicine, Shandong University, Jinan, 250001, China; Key Laboratory of Reproductive Endocrinology of Ministry of Education, Shandong University, Jinan, Shandong, 250012, China.
| |
Collapse
|
17
|
Ota K, Kaku N, Yanagihara K. Efficacy of meropenem and amikacin combination therapy against carbapenemase-producing Klebsiella pneumoniae mouse model of pneumonia. J Infect Chemother 2020; 26:1237-1243. [PMID: 32868198 DOI: 10.1016/j.jiac.2020.07.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 05/27/2020] [Accepted: 07/08/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND The emergence and spread of carbapenem-resistant Enterobacteriaceae (CRE) is a global health problem due to its high mortality and limited treatment options. Combination antimicrobial therapy is reported to be effective against CRE in vitro; however, its efficacy in vivo has not been thoroughly evaluated. Thus, this study assessed the efficacy of combination therapy of meropenem (MEPM) and amikacin (AMK) in a carbapenem-resistant Klebsiella pneumoniae (CR-Kp) mouse model of pneumonia. MATERIALS AND METHODS Agar-based bacterial suspension of CR-Kp clinical isolates was inoculated into the trachea of BALB/c mice. Treatment was initiated 6 h post infection, with 100 mg/kg MEPM every 6 h, 100 mg/kg AMK every 12 h, or in combination; survival was evaluated for 7 days. The number of viable bacteria in the lungs, lung histopathology, and neutrophil counts in broncho-alveolar lavage fluid (BALF) were evaluated 42 h after infection. RESULTS All mice in the untreated control group died in 48 h, while all the mice in treatment groups survived past 7 days following infection. The bacterial count in the lungs (log10 CFU/mL, mean ± SEM) in the combination group (2.00 ± 0.00) decreased significantly compared to that in control (10.19 ± 0.11, p < 0.0001), MEPM (6.38 ± 0.17, p < 0.0001), and AMK (6.17 ± 0.16, p < 0.0001) groups. BALF neutrophil count reduced only in the combination therapy group. Combination therapy prevented the progression of lung inflammation, including alveolar neutrophil infiltration and hemorrhage. CONCLUSIONS This study demonstrates in vivo efficacy of MEPM and AMK combination therapy against CR-Kp pneumonia.
Collapse
Affiliation(s)
- Kenji Ota
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan; Department of Laboratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| | - Norihito Kaku
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan; Department of Laboratory Medicine, Nagasaki University Hospital, Nagasaki, Japan.
| | - Katsunori Yanagihara
- Department of Laboratory Medicine, Nagasaki University Graduate School of Biomedical Sciences, Nagasaki, Japan; Department of Laboratory Medicine, Nagasaki University Hospital, Nagasaki, Japan
| |
Collapse
|
18
|
Xu Z, Huang J, Kong D, Yang Y, Guo L, Jia X, Zhong G, Liu Z. Potent half-sandwich Ru(Ⅱ) N^N (aryl-BIAN) complexes: Lysosome-mediated apoptosis, in vitro and in vivo anticancer activities. Eur J Med Chem 2020; 207:112763. [PMID: 32882612 DOI: 10.1016/j.ejmech.2020.112763] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 08/09/2020] [Accepted: 08/15/2020] [Indexed: 12/22/2022]
Abstract
Herein a new series of organometallic half-sandwich Ru(Ⅱ) complexes bearing aryl-BIAN chelating ligands with various electron-withdrawing and electron-donating substituents have been developed as theranostic agents. All the complexes display much higher anti-proliferative potency than the clinical chemotherapeutic drug cisplatin towards seven cancer cell lines. The anti-proliferative efficacy of these complexes is correlated to their electron-withdrawing ability. Interestingly, complex Ru1 also potently suppresses cancer cell migration in vitro and effectively inhibit tumor growth in vivo in a CT26 colon cancer mouse xenograft model. Mechanisms of action studies display that Ru1 can favorably accumulate in lysosome and exerts anti-cancer potency by inducing a series of events related to lysosomal dysfunction in CT26 cells. Interestingly, inhibition of lysosomal enzymes leads to suppression of cytotoxicity and apoptosis induced by Ru1. Our results elucidate that complex Ru1 can elicit cytotoxicity through lysosome-mediated apoptosis in vitro and suppress tumor growth in vivo.
Collapse
Affiliation(s)
- Zhishan Xu
- College of Chemistry, Chemistry Engineering and Materials Science, Shandong Normal University, Jinan, 250014, China; Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Jie Huang
- Qingdao University of Science and Technology, Qingdao, 266061, China.
| | - Deliang Kong
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Yuliang Yang
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Lihua Guo
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Xianglei Jia
- Henan Key Laboratory of Neural Regeneration, The First Affiliated Hospital of Xinxiang Medical University, Weihui, 453100, China
| | - Genshen Zhong
- Henan Collaborative Innovation Center of Molecular Diagnosis and Laboratory Medicine, School of Laboratory Medicine, Xinxiang Medical University, Xinxiang, 453003, China
| | - Zhe Liu
- Institute of Anticancer Agents Development and Theranostic Application, The Key Laboratory of Life-Organic Analysis and Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine, Department of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China.
| |
Collapse
|
19
|
Zhang F, Ma C, Jiao Z, Mu S, Zhang Y, Liu X, Zhang H. A NIR Turn-on Fluorescent Sensor For Detection of Chloride Ions in vitro and in vivo. Spectrochim Acta A Mol Biomol Spectrosc 2020; 228:117729. [PMID: 31740122 DOI: 10.1016/j.saa.2019.117729] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/21/2019] [Accepted: 10/28/2019] [Indexed: 06/10/2023]
Abstract
As the most abundant and significant anions in biosystem, chloride ions (Cl-) participate in many important physiological processes. Thus, designing and synthesizing of a simple, sensitive, selective and long wavelength turn-on sensor for the detection and imaging of Cl- in vitro and in vivo is very necessary. Herein, we have developed a simple porphyrin turn-on sensor 5, 10, 15, 20-Tetrakis (4-hydroxyphenyl) porphyrin (THPP) with near infrared emission wavelength (657 nm) for sensing chloride ions with remarkable sensitivity and selectivity. The detection of chloride ions was according to metal displacement assay (MDA) under physiological condition with a detection limit of 7.5 μM, and was applied to image Cl- in vitro and in vivo successfully.
Collapse
Affiliation(s)
- Fengyuan Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China; School of Basic Medical Science, Ningxia Medical University, Yinchuan, 750004, China
| | - Chen Ma
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Zhijuan Jiao
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Shuai Mu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Yida Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Xiaoyan Liu
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Haixia Zhang
- State Key Laboratory of Applied Organic Chemistry and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
| |
Collapse
|
20
|
Liu Y, Wu Y, Sun L, Gu Y, Hu L. Synthesis and structure-activity relationship study of water-soluble carbazole sulfonamide derivatives as new anticancer agents. Eur J Med Chem 2020; 191:112181. [PMID: 32113125 DOI: 10.1016/j.ejmech.2020.112181] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/16/2020] [Accepted: 02/21/2020] [Indexed: 12/11/2022]
Abstract
Here, we formulated and investigated the structure-activity relationships of novel N-substituted carbazole sulfonamide derivatives with improved physicochemical properties. Most of these new compounds displayed good aqueous solubility. Certain molecules presented strong in vitro antiproliferative and in vivo antitumor activity. Relative to the control, 50 mg/kg compound 3v substantially reduced human HepG2 xenograft mouse tumor growth by 54.5% and its efficacy was comparable to that of CA-4P. Compound 3h demonstrated anticancer efficacy in both subcutaneous and orthotopic HepG2 xenograft mouse models. We also developed a novel synthetic method for 7-hydroxy-substituted carbazole sulfonamides. Compared with the control, 25 mg/kg compound 4c inhibited human HepG2 xenograft mouse tumor growth by 71.7% and was more potent than 50 mg/kg CA-4P with only 50% tumor shrinkage efficacy. Among the three water-soluble carbazole sulfonamide derivatives formulated in the present study, compound 4c displayed the most effective tumor growth inhibition in vivo and merit further investigation as potential antitumor agents for cancer therapy.
Collapse
Affiliation(s)
- Yonghua Liu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, PR China.
| | - Yanbin Wu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, PR China
| | - Lianqi Sun
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, PR China
| | - Yuxi Gu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, PR China
| | - Laixing Hu
- Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, PR China.
| |
Collapse
|
21
|
Guo X, Li S, Mu S, Zhang Y, Liu X, Zhang H. A merocyanine-based dual-mode optical probe for detection of hydrazine and its bioimaging application in vitro and vivo. Spectrochim Acta A Mol Biomol Spectrosc 2020; 226:117625. [PMID: 31605967 DOI: 10.1016/j.saa.2019.117625] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Revised: 07/20/2019] [Accepted: 10/06/2019] [Indexed: 06/10/2023]
Abstract
In this paper, a Merocyanine-based turn-on probe (McyA) has been developed for colorimetric and fluorescent dual-mode detection of N2H4 via an intra-molecular charge transfer (ICT) mechanism. In the presence of N2H4, the probe shows an obvious chromogenic response and fluorescent enhancement. Based on this feature, the synthesized McyA can be applied to quantify N2H4 concentration from 0.12 to 5.0 μM and 0.5-10 μM with a detection limit of 0.042 μM (1.3 ppb, S/N = 3) and 0.140 μM (4.5 ppb, S/N = 3), respectively. Moreover, McyA has also be successfully employed for imaging analysis of N2H4 distribution in different organs from the N2H4 ingested mice model, revealing the potential application of McyA as a powerful fluorescent sensor for tracking detection and risk assessment of hydrazine in vivo.
Collapse
Affiliation(s)
- Xiumei Guo
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Shanshan Li
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Shuai Mu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| | - Yintang Zhang
- Henan Key Laboratory of Biomolecular Recognition and Sensing, College of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, 476000, China
| | - Xiaoyan Liu
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China.
| | - Haixia Zhang
- State Key Laboratory of Applied Organic Chemistry, Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province and College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China
| |
Collapse
|
22
|
Su D, Cheng D, Lv Y, Ren X, Wu Q, Yuan L. A unique off-on near-infrared QCy7-derived probe for selective detection and imaging of hydrogen sulfide in cells and in vivo. Spectrochim Acta A Mol Biomol Spectrosc 2020; 226:117635. [PMID: 31605973 DOI: 10.1016/j.saa.2019.117635] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 10/02/2019] [Accepted: 10/07/2019] [Indexed: 06/10/2023]
Abstract
Hydrogen sulfide (H2S) has been found to be an important biological regulator that plays important roles in many physiological and pathological processes. Near-infrared (NIR) fluorescent probes capable of selectively detecting H2S in vivo will be useful tools to understand its mechanisms in biological processes. Herein, we reported an easily synthesized and stimuli-responsive NIR fluorescent probe (QCy7-HS) for selective evaluation of endogenous H2S in the living cells and mice. In response to cellular H2S stimulus, QCy7-HS is converted to QCy7 and shows a unique off-on near-infrared fluorescence signal change. The results of selectivity and kinetic studies indicated that our probe has high H2S binding capacity. Therefore, this probe was used for the fluorescence detection of H2S in cells. Moreover, the probe was applied for study exogenous and endogenous H2S in live mice, indicating that the new probe can be used as an efficient tool on H2S related events in living animals.
Collapse
Affiliation(s)
- Dongdong Su
- Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, 100124, PR China.
| | - Dan Cheng
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China
| | - Yun Lv
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China
| | - Xiaojun Ren
- Department of Chemistry and Chemical Engineering, Beijing University of Technology, Beijing, 100124, PR China
| | - Qian Wu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China
| | - Lin Yuan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, 410082, PR China.
| |
Collapse
|
23
|
Rodríguez-Alonso B, Sánchez JM, González E, Lonergan P, Rizos D. Challenges in studying preimplantation embryo-maternal interaction in cattle. Theriogenology 2020; 150:139-49. [PMID: 31973965 DOI: 10.1016/j.theriogenology.2020.01.019] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2020] [Accepted: 01/11/2020] [Indexed: 01/10/2023]
Abstract
A comprehensive understanding of the complex embryo-maternal interactions during the preimplantation period requires the analysis of the very early stages of pregnancy encompassing early embryonic development, maternal recognition and the events leading to implantation. Despite the fact that embryo development until blastocyst stage is somewhat autonomous (i.e., does not require contact with the maternal reproductive tract and can be successfully recapitulated in vitro), many studies on ruminant embryo production have focused on the fundamental question of why: (i) only 30%-40% of immature oocytes develop to the blastocyst stage and (ii) the quality of such blastocysts continually lags behind that of blastocysts produced in vivo. Clear evidence indicates that in vitro culture conditions are far from optimal with deficiencies being manifested in short- and long-term effects on the embryo. Thus, enhanced knowledge of mechanisms controlling embryo-maternal interactions would allow the design of novel strategies to improve in vitro embryo conditions and reproductive outcomes in cattle.
Collapse
|
24
|
Wang C, Pan C, Wei Z, Wei X, Yang F, Mao L. Bionanosensor based on N-doped graphene quantum dots coupled with CoOOH nanosheets and their application for in vivo analysis of ascorbic acid. Anal Chim Acta 2019; 1100:191-199. [PMID: 31987140 DOI: 10.1016/j.aca.2019.11.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 10/14/2019] [Accepted: 11/09/2019] [Indexed: 12/12/2022]
Abstract
Herein, we employ 3D nitrogen-doped porous graphene frameworks (NPG) as raw material to prepare emissive nitrogen doped graphene quantum dots (r-NGQDs) via chemical oxidation method. The as-prepared fluorescent r-NGQDs was integrated with CoOOH nanosheets to construct a sensing platform for in vivo ascorbic acid (AA) analysis. Initially, the fluorescence emission intensity of r-NGQDs was quenched by CoOOH nanosheets based on the inner filter effect (IFE). Then the quenched intensity of r-NGQDs and CoOOH nanosheets system was enlightened by addition of AA, since AA could consume CoOOH nanosheets through redox reaction, leading to the release of r-NGQDs and fluorescence restoration. Moreover, the restored fluorescence intensity of r-NGQDs is highly dependent on the concentration of AA which endows them as a quantitative analysis of AA with a limit of detection (LOD) reach up to1.85 μM (n = 3) in aqueous solution. Finally, the as constructed bionanosensor was further employed for in vivo analysis of AA in living rat brain microdialysate with basal value up to 9.4 ± 1.4 μM (n = 3).
Collapse
Affiliation(s)
- Chunxia Wang
- State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum (Beijing), Beijing, 102249, China.
| | - Caiwen Pan
- State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum (Beijing), Beijing, 102249, China
| | - Zitong Wei
- State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum (Beijing), Beijing, 102249, China
| | - Xiaoran Wei
- State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum (Beijing), Beijing, 102249, China
| | - Fan Yang
- State Key Laboratory of Heavy Oil Processing, College of New Energy and Materials, China University of Petroleum (Beijing), Beijing, 102249, China.
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing, 100190, China.
| |
Collapse
|
25
|
Jin Z, Wang L, Gao H, Zhou YH, Liu YH, Tang YZ. Design, synthesis and biological evaluation of novel pleuromutilin derivatives possessing acetamine phenyl linker. Eur J Med Chem 2019; 181:111594. [PMID: 31419741 DOI: 10.1016/j.ejmech.2019.111594] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Revised: 07/20/2019] [Accepted: 08/05/2019] [Indexed: 01/30/2023]
Abstract
A series of novel acetamine phenyl pleuromutilin derivatives incorporating 2-aminothiophenol moieties into the C14 side chain were synthesized via acylation reactions under mild conditions. The in vitro antibacterial activities of the synthesized derivatives against three Staphylococcus aureus (MRSA ATCC 43300, ATCC 29213 and AD 3) and two Escherichia coli (ATCC 25922 and 9-1) were evaluated by the broth dilution method. Most of the synthesized derivatives displayed potent activities. Compound 27 was found to be the most active antibacterial derivative against MRSA (minimal inhibitory concentration = 0.015 μg/mL) which may lead to a promising antibacterial drug. Furthermore, compound 27 displayed more rapid bactericidal kinetic than tiamulin in in vitro time-kill studies and possessed a longer PAE than tiamulin against MRSA. The PK properties of compound 27 were then measured. The half life (t1/2), clearance rate (Cl) and the area under the plasma concentration-time curve (AUC0→∞) of compound 27 were 6.88 h, 21.64 L/h/kg and 0.48 μg h/mL, respectively. The in vivo antibacterial activities of compound 27 against MRSA were further evaluated using thigh infection model and systemic infection model. Compound 27 possessed superior antibacterial efficacy to tiamulin against MRSA infection in both model.
Collapse
Affiliation(s)
- Zhen Jin
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Le Wang
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Hong Gao
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Ying-Hui Zhou
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - Ya-Hong Liu
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China
| | - You-Zhi Tang
- Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou, 510642, China.
| |
Collapse
|
26
|
Osman H, Elsahy D, Slivova V, Thompson C, Georges J, Yocom S, Cohen-Gadol AA. Neurosurgical Flexible Probe Microscopy with Enhanced Architectural and Cytological Detail. World Neurosurg 2019; 128:e929-e937. [PMID: 31100529 DOI: 10.1016/j.wneu.2019.05.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 05/03/2019] [Accepted: 05/04/2019] [Indexed: 10/26/2022]
Abstract
BACKGROUND Microscopic delineation and clearance of tumor cells at neurosurgical excision margins potentially reduce tumor recurrence and increase patient survival. Probe-based in vivo fluorescence microscopy technologies are promising for neurosurgical in vivo microscopy. OBJECTIVE We sought to demonstrate a flexible fiberoptic epifluorescence microscope capable of enhanced architectural and cytological imaging for in vivo microscopy during neurosurgical procedures. METHODS Eighteen specimens were procured from neurosurgical procedures. These specimens were stained with acridine orange and imaged with a 3-dimensional (3D)-printed epifluorescent microscope that incorporates a flexible fiberoptic probe. Still images and video sequence frames were processed using frame alignment, signal projection, and pseudo-coloring, resulting in resolution enhancement and an increased field of view. RESULTS Images produced displayed good nuclear contrast and architectural detail. Grade 1 meningiomas demonstrated 3D chords and whorls. Low-grade meningothelial nuclei showed streaming and displayed regularity in size, shape, and distribution. Oligodendrogliomas showed regular round nuclei and a variably staining background. Glioblastomas showed high degrees of nuclear pleomorphism and disarray. Mitoses, vascular proliferation, and necrosis were evident. CONCLUSIONS We demonstrate the utility of a 3D-printed, flexible probe microscope for high-resolution microscopic imaging with increased architectural detail. Enhanced in vivo imaging using this device may improve our ability to detect and decrease microscopic tumor burden at excision margins during neurosurgical procedures.
Collapse
Affiliation(s)
- Hany Osman
- Wellman Center for Photomedicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts, USA
| | - Deena Elsahy
- Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Veronika Slivova
- Enterprise Clinical Research Operations Biorepository, Indiana University Health, Indianapolis, Indiana, USA
| | - Corey Thompson
- Enterprise Clinical Research Operations Biorepository, Indiana University Health, Indianapolis, Indiana, USA
| | - Joseph Georges
- Department of Neurosurgery, Philadelphia College of Osteopathic Medicine, Philadelphia, Pennsylvania, USA
| | - Steven Yocom
- Department of Neurosurgery, Philadelphia College of Osteopathic Medicine, Philadelphia, Pennsylvania, USA
| | - Aaron A Cohen-Gadol
- Goodman Campbell Brain and Spine and Indiana University Department of Neurological Surgery, Indianapolis, Indiana, USA.
| |
Collapse
|
27
|
Aisenbrey EA, Tomaschke AA, Schoonraad SA, Fischenich KM, Wahlquist JA, Randolph MA, Ferguson VL, Bryant SJ. Assessment and prevention of cartilage degeneration surrounding a focal chondral defect in the porcine model. Biochem Biophys Res Commun 2019; 514:940-945. [PMID: 31088681 DOI: 10.1016/j.bbrc.2019.05.034] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Accepted: 05/04/2019] [Indexed: 10/26/2022]
Abstract
Focal defects in articular cartilage are unable to self-repair and, if left untreated, are a leading risk factor for osteoarthritis. This study examined cartilage degeneration surrounding a defect and then assessed whether infilling the defect prevents degeneration. We created a focal chondral defect in porcine osteochondral explants and cultured them ex vivo with and without dynamic compressive loading to decouple the role of loading. When compared to a defect in a porcine knee four weeks post-injury, this model captured loss in sulfated glycosaminoglycans (sGAGs) along the defect's edge that was observed in vivo, but this loss was not load dependent. Loading, however, reduced the indentation modulus of the surrounding cartilage. After infilling with in situ polymerized hydrogels that were soft (100 kPa) or stiff (1 MPa) and which produced swelling pressures of 13 and 310 kPa, respectively, sGAG loss was reduced. This reduction correlated with increased hydrogel stiffness and swelling pressure, but was not affected by loading. This ex vivo model recapitulates sGAG loss surrounding a defect and, when infilled with a mechanically supportive hydrogel, degeneration is minimized.
Collapse
Affiliation(s)
- Elizabeth A Aisenbrey
- Department of Chemical and Biological Engineering, 3415 Colorado Ave, University of Colorado at Boulder, Boulder, CO, 80309, USA
| | - Andrew A Tomaschke
- Department of Mechanical Engineering, 1111 Engineering Dr, University of Colorado at Boulder, Boulder, CO, 80309, USA
| | - Sarah A Schoonraad
- Materials Science and Engineering Program, 3415 Colorado Ave, University of Colorado at Boulder, Boulder, CO, 80309, USA
| | - Kristine M Fischenich
- Department of Mechanical Engineering, 1111 Engineering Dr, University of Colorado at Boulder, Boulder, CO, 80309, USA
| | - Joseph A Wahlquist
- Department of Mechanical Engineering, 1111 Engineering Dr, University of Colorado at Boulder, Boulder, CO, 80309, USA
| | - Mark A Randolph
- Department of Orthopaedic Surgery, Laboratory for Musculoskeletal Tissue Engineering, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02114, USA
| | - Virginia L Ferguson
- Department of Mechanical Engineering, 1111 Engineering Dr, University of Colorado at Boulder, Boulder, CO, 80309, USA; Materials Science and Engineering Program, 3415 Colorado Ave, University of Colorado at Boulder, Boulder, CO, 80309, USA; BioFrontiers Institute, 3415 Colorado Ave, University of Colorado at Boulder, Boulder, CO, 80309, USA
| | - Stephanie J Bryant
- Department of Chemical and Biological Engineering, 3415 Colorado Ave, University of Colorado at Boulder, Boulder, CO, 80309, USA; Materials Science and Engineering Program, 3415 Colorado Ave, University of Colorado at Boulder, Boulder, CO, 80309, USA; BioFrontiers Institute, 3415 Colorado Ave, University of Colorado at Boulder, Boulder, CO, 80309, USA.
| |
Collapse
|
28
|
Ichihara H, Motomura M, Matsumoto Y. Therapeutic effects and anti-metastasis effects of cationic liposomes against pancreatic cancer metastasis in vitro and in vivo. Biochem Biophys Res Commun 2019; 511:504-509. [PMID: 30803757 DOI: 10.1016/j.bbrc.2019.02.116] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 02/21/2019] [Indexed: 11/28/2022]
Abstract
The anti-metastatic effects of cationic liposomes (CL) composed of 87 mol% dimyristoylphosphatidylcholine (DMPC), 8 mol% O,O'-ditetradecanoyl-N-(α-trimethylammonioacetyl) diethanolamine chloride (2C14ECl) and 5 mol% polyoxyethylene(21) dodecyl ether (C12(EO)21) was investigated for human pancreatic cancer (BxPC-3) cells. The inhibitory effect of CL on the migration of BxPC-3 cells was observed based on a wound scratch assay. CL suppressed pseudopodium formation of BxPC-3 cells. The anti-invasive effect of CL against BxPC-3 cells was observed via a Matrigel invasion assay. The anti-invasive effect of CL for BxPC-3 cells was found to occur through the inhibition of MMP2, MMP9, and MMP14. Overall, the results of this study revealed for the first time, the therapeutic effects and anti-metastasis activity of CL in xenograft mouse models for peritoneal metastasis of human pancreatic cancer.
Collapse
Affiliation(s)
- Hideaki Ichihara
- Division of Applied Life Science, Graduate School of Engineering, Sojo University, 4-22-1 Ikeda, Kumamoto, 860-0082, Japan
| | - Muneaki Motomura
- Division of Applied Life Science, Graduate School of Engineering, Sojo University, 4-22-1 Ikeda, Kumamoto, 860-0082, Japan
| | - Yoko Matsumoto
- Division of Applied Life Science, Graduate School of Engineering, Sojo University, 4-22-1 Ikeda, Kumamoto, 860-0082, Japan.
| |
Collapse
|
29
|
Melenotte C, Caputo A, Bechah Y, Lepidi H, Terras J, Kowalczewska M, Di Pinto F, Nappez C, Raoult D, Brégeon F. The hypervirulent Coxiella burnetii Guiana strain compared in silico, in vitro and in vivo to the Nine Mile and the German strain. Clin Microbiol Infect 2019; 25:1155.e1-8. [PMID: 30625413 DOI: 10.1016/j.cmi.2018.12.039] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Revised: 12/09/2018] [Accepted: 12/28/2018] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Q fever epidemic outbreaks have been reported in French Guiana and in The Netherlands. To determine whether the C. burnetii strains involved in these epidemics had a peculiar virulence pattern, we compared the pathogenicity of the Guiana and the German strain (a clone of The Netherlands strain), in silico, in vitro, and in vivo versus the Nine Mile strain. METHOD The pan-genomes of the Guiana (Cb175), German (Z3055), and the referent Nine Mile (RSA 493) C. burnetii strains were compared. In vitro, the growth rate and the morphological presentation were compared. In vivo (SCID and Balb/c mice), weight loss, histological lesions, C. burnetii bacterial load in deep organs, and serological response were reported according to each C. burnetii strain studied. RESULTS The Guiana strain had 77 times more missing genes and 12 times more unique genes than the German strain. The Guiana strain presented as large cell variants (LCVs) and led to the most pronounced fatality rate in SCID mice (100% at 4 weeks). The German strain presented as small cell variants (SCVs), and had an intermediate fatality rate (75% at 4 weeks). Both the Guiana and the German strains led to a significant higher serological response at 2 and 4 weeks post infection (p <0.05). CONCLUSION The Guiana strain was the most virulent strain, followed by the German strain and the referent Nine Mile strain. Unique and missing genes could be implicated but further investigations are necessary to specify their role.
Collapse
|
30
|
Kaku N, Noda S, Tabata T, Tagomori H, Tsumura H. Radiographic evaluation of linear wear of bipolar hemiarthroplasty devices in vivo. J Clin Orthop Trauma 2019; 10:639-644. [PMID: 31316231 PMCID: PMC6611971 DOI: 10.1016/j.jcot.2018.07.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 07/19/2018] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND The indications for bipolar hemiarthroplasty (BHA) have been narrowing as those for total hip arthroplasty (THA) have been expanding in cases of femoral neck fracture and initial stages of osteonecrosis of femoral head (ONFH). It is difficult to measure wear in vivo after BHA because the equipment used has a dual bearing system with an inner head inside a metal outer cup. The present study aimed to (1) use a roentgenograph to measure linear wear in vivo after BHA with different acetabular conditions around the bipolar cup, and (2) compare the linear wear of polyethylene between integral bipolar cup (IBC) and Centrax prostheses. METHODS From among patients who had undergone BHA in our department after 1996, we analyzed 48 joints with osteoarthritis (OA) and without acetabular cartilage, as well as 25 joints with ONFH of stage 3 or less, in which the acetabular cartilage remains. Two types of bipolar cup prostheses were used: the IBC, which was gamma-sterilized in air using 2-Mrad irradiation, and the Centrax, which was gamma-sterilized in nitrogen using 3-Mrad irradiation. To image the inner head in vivo, we used high-pressure X-ray photography; we measured linear wear of the polyethylene with software using Martell Method 1. RESULTS Comparing mean annual linear wear between the OA and ONFH groups, using IBC prostheses in both groups, there was a significant difference (0.213 mm vs. 0.096 mm, respectively; P = 0.0177). There was a significant difference between the Centrax and IBC prostheses in OA patients in terms of linear wear (0.04 mm vs. 0.213 mm; P = 0.0181). CONCLUSION The linear wear of polyethylene in BHA implants can be affected by the material used to manufacture the bipolar cup. Such implants should only be used for appropriate indications.
Collapse
Affiliation(s)
- Nobuhiro Kaku
- Corresponding author. Department of Orthopaedic Surgery, Faculty of Medicine, Oita University, 1-1 Idaigaoka Hazamacho, Yufu City, Oita, 879-5593, Japan.
| | | | | | | | | |
Collapse
|
31
|
Martín-Escolano R, Molina-Carreño D, Delgado-Pinar E, Martin-Montes Á, Clares MP, Medina-Carmona E, Pitarch-Jarque J, Martín-Escolano J, Rosales MJ, García-España E, Sánchez-Moreno M, Marín C. New polyamine drugs as more effective antichagas agents than benznidazole in both the acute and chronic phases. Eur J Med Chem 2018; 164:27-46. [PMID: 30583247 DOI: 10.1016/j.ejmech.2018.12.034] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 12/10/2018] [Accepted: 12/14/2018] [Indexed: 12/25/2022]
Abstract
Despite the continuous research effort that has been made in recent years to find ways to treat the potentially life threatening Chagas disease (CD), this remains the third most important infectious disease in Latin America. CD is an important public health problem affecting 6-7 million people. Since the need to search for new drugs for the treatment of DC persists, in this article we present a panel of new polyamines based on the tripodal structure of tris(2-aminomethyl)amine (tren) that can be prepared at low cost with high yields. Moreover, these polyamines present the characteristic of being water-soluble and resistant to the acidic pH values of stomach, which would allow their potential oral administration. In vitro and in vivo assays permitted to identify the compound with the tren moiety functionalized with one fluorene unit (7) as a potential antichagas agent. Compound 7 has broader spectrum of action, improved efficacy in acute and chronic phases of the disease and lower toxicity than the reference drug benznidazole. Finally, the action mechanisms studied at metabolic and mitochondrial levels shows that the trypanocidal activity of compound 7 could be related to its effect at the glycosomal level. Therefore, this work allowed us to select compound 7 as a promising candidate to perform preclinical evaluation studies.
Collapse
Affiliation(s)
- Rubén Martín-Escolano
- Department of Parasitology, Instituto de Investigación Biosanitaria (ibs. Granada), Hospitales Universitarios de Granada/University of Granada, Severo Ochoa s/n, E-18071, Granada, Spain
| | - Daniel Molina-Carreño
- Department of Parasitology, Instituto de Investigación Biosanitaria (ibs. Granada), Hospitales Universitarios de Granada/University of Granada, Severo Ochoa s/n, E-18071, Granada, Spain
| | - Estefanía Delgado-Pinar
- ICMol, Departamento de Química Inorgánica, Universidad de Valencia, C/Catedrático José Beltrán 2, 46980, Paterna, Spain
| | - Álvaro Martin-Montes
- Department of Parasitology, Instituto de Investigación Biosanitaria (ibs. Granada), Hospitales Universitarios de Granada/University of Granada, Severo Ochoa s/n, E-18071, Granada, Spain
| | - M Paz Clares
- ICMol, Departamento de Química Inorgánica, Universidad de Valencia, C/Catedrático José Beltrán 2, 46980, Paterna, Spain
| | - Encarnación Medina-Carmona
- Department of Physical Chemistry, Faculty of Sciences, University of Granada, Av. Fuentenueva s/n, 18071, Granada, Spain
| | - Javier Pitarch-Jarque
- ICMol, Departamento de Química Inorgánica, Universidad de Valencia, C/Catedrático José Beltrán 2, 46980, Paterna, Spain
| | - Javier Martín-Escolano
- Department of Parasitology, Instituto de Investigación Biosanitaria (ibs. Granada), Hospitales Universitarios de Granada/University of Granada, Severo Ochoa s/n, E-18071, Granada, Spain
| | - María José Rosales
- Department of Parasitology, Instituto de Investigación Biosanitaria (ibs. Granada), Hospitales Universitarios de Granada/University of Granada, Severo Ochoa s/n, E-18071, Granada, Spain
| | - Enrique García-España
- ICMol, Departamento de Química Inorgánica, Universidad de Valencia, C/Catedrático José Beltrán 2, 46980, Paterna, Spain.
| | - Manuel Sánchez-Moreno
- Department of Parasitology, Instituto de Investigación Biosanitaria (ibs. Granada), Hospitales Universitarios de Granada/University of Granada, Severo Ochoa s/n, E-18071, Granada, Spain.
| | - Clotilde Marín
- Department of Parasitology, Instituto de Investigación Biosanitaria (ibs. Granada), Hospitales Universitarios de Granada/University of Granada, Severo Ochoa s/n, E-18071, Granada, Spain.
| |
Collapse
|
32
|
Xu C, Lin X, Yin S, Zhao L, Liu Y, Liu K, Li F, Yang F, Liu W. Enantioselectivity in biotransformation and bioaccumulation processes of typical chiral contaminants. Environ Pollut 2018; 243:1274-1286. [PMID: 30268979 DOI: 10.1016/j.envpol.2018.09.095] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2018] [Revised: 09/03/2018] [Accepted: 09/19/2018] [Indexed: 06/08/2023]
Abstract
Chirality is a critical topic in the medicinal and agrochemical fields. One quarter of all agrochemicals was chiral in 1996, and this proportion has increased remarkably with the introduction of new compounds over time. Despite scientists have made great efforts to probe the enantiomeric selectivity of chiral chemicals in the environment since early 1990s, the different behaviours of individual enantiomers in biologically mediated processes are still unclear. In the present review, we highlight state-of-the-knowledge on the stereoselective biotransformation and accumulation of chiral contaminants in organisms ranging from invertebrates to humans. Chiral insecticides, fungicides, and herbicides, polychlorinated biphenyls (PCBs), pharmaceuticals, flame retardants hexabromocyclododecane (HBCD), and perfluorooctane sulfonate (PFOS) are all included in the target compounds. Key findings included: a) Changes in the enantiomeric fractions in vitro and in vivo models revealed that enantioselectivity commonly occurs in biotransformation and bioaccumulation. b) Emerging contaminants have become more important in the field of enantioselectivity together with their metabolites in biological transformation process. c) Chiral signatures have also been regarded as powerful tools for tracking pollution sources when the contribution of precursor is unknown. Future studies are needed in order to understand not only preliminary enrichment results but also detailed molecular mechanisms in diverse models to comprehensively understand the behaviours of chiral compounds.
Collapse
Affiliation(s)
- Chenye Xu
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China; School of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Xinmeng Lin
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Shanshan Yin
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Lu Zhao
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Yingxue Liu
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Kai Liu
- Department of Environmental Science and Engineering, W. M. Keck Laboratories, California Institute of Technology, 1200 East California Blvd., Pasadena, CA, 91125, USA
| | - Fang Li
- School of Environmental Science and Engineering, Donghua University, Shanghai, 201620, China
| | - Fangxing Yang
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China
| | - Weiping Liu
- Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health, Institute of Environmental Health, College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, 310058, China.
| |
Collapse
|
33
|
Zhao S, Wang B, Zhu L, Liang T, Chen M, Yang L, Lv J, Liu L. Uptake, elimination and biotransformation of N-ethyl perfluorooctane sulfonamide (N-EtFOSA) by the earthworms (Eisenia fetida) after in vivo and in vitro exposure. Environ Pollut 2018; 241:19-25. [PMID: 29793104 DOI: 10.1016/j.envpol.2018.05.046] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 05/15/2018] [Accepted: 05/15/2018] [Indexed: 06/08/2023]
Abstract
N-ethyl perfluorooctane sulfonamide (N-EtFOSA) is commonly known as the active ingredient of sulfluramid. It can be degraded to perfluorooctane sulfonic acid (PFOS) in biota and environment. Earthworms (Eisenia fetida) were exposed with N-EtFOSA to examine the bioaccumulation, elimination and metabolism of N-EtFOSA by the earthworms after in vivo and in vitro exposure. N-EtFOSA could be biodegraded in quartz sands to perfluorooctane sulfonamide (FOSA) and PFOS. In the in vivo tests, in addition to parent N-EtFOSA, three metabolites, including perfluorooctane sulfonamide acetate (FOSAA), FOSA and PFOS also accumulated in earthworms as a result of N-EtFOSA biotransformation, with FOSA as the predominant metabolite. The bioaccumulation factor (BAF) and uptake rate coefficient (ku) of N-EtFOSA from sand were 20.4 and 2.41·d-1, respectively. The elimination rate constants (ke) decreased in the order FOSAA (0.130·d-1) > N-EtFOSA (0.118·d-1) > FOSA (0.073·d-1) > PFOS (0.051·d-1). The biotransformation of N-EtFOSA in earthworm was further confirmed by the in vitro test involving incubation of earthworm homogenates with N-EtFOSA. This work provides evidence on the accumulation and transformation of N-EtFOSA in terrestrial invertebrates and will be helpful to explore the indirect sources of FOSA and PFOS in environmental biota.
Collapse
Affiliation(s)
- Shuyan Zhao
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Food and Environment, Dalian University of Technology, Panjin, Liaoning, 124221, PR China.
| | - Bohui Wang
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Food and Environment, Dalian University of Technology, Panjin, Liaoning, 124221, PR China
| | - Lingyan Zhu
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, PR China
| | - Tiankun Liang
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Food and Environment, Dalian University of Technology, Panjin, Liaoning, 124221, PR China
| | - Meng Chen
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, PR China
| | - Liping Yang
- Key Laboratory of Pollution Processes and Environmental Criteria, Ministry of Education, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin, 300071, PR China
| | - Jingping Lv
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Food and Environment, Dalian University of Technology, Panjin, Liaoning, 124221, PR China
| | - Lifen Liu
- Key Laboratory of Industrial Ecology and Environmental Engineering (MOE), School of Food and Environment, Dalian University of Technology, Panjin, Liaoning, 124221, PR China
| |
Collapse
|
34
|
Zhang HB, Shen QK, Wang H, Jin C, Jin CM, Quan ZS. Synthesis and evaluation of novel arctigenin derivatives as potential anti-Toxoplasma gondii agents. Eur J Med Chem 2018; 158:414-427. [PMID: 30237124 DOI: 10.1016/j.ejmech.2018.08.087] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Revised: 08/15/2018] [Accepted: 08/29/2018] [Indexed: 12/20/2022]
Abstract
Four new series of arctigenin derivatives were designed, synthesised, and evaluated for their anti-Toxoplasma gondii activity in vitro and in vivo. Among the synthesised compounds, 4-(3,4-dimethoxybenzyl)-3-(4-((1-(2-fluorobenzyl)-1H- 1,2,3-triazol-4-yl)methoxy)-3-methoxybenzyl)dihydrofuran-2(3H)-one (D4) exhibited the most potent anti-T. gondii activity and low cytotoxicity (IC50 in T. gondii: 17.1 μM; IC50 in HeLa cells: ≥ 600.0 μM; Selectivity: 35.09), demonstrating better results than the lead compound arctigenin (IC50 in T. gondii: 586.4 μM; IC50 in HeLa cells: 572.7 μM; Selectivity: 0.98) and the clinically applied positive-control drug spiramycin (IC50 in T. gondi: 262.2 μM; IC50 in HeLa cells: 189.0 μM; Selectivity: 0.72) in vitro. Furthermore, 2-(4-((4-(3,4-dimethoxybenzyl)-2-oxotetrahydrofuran-3-yl)methyl)-2- methoxyphenoxy)N-phenylacetamide (E5) had better inhibitory effects on T. gondii in vivo than spiramycin did. Compound D4 and E5 not only significantly reduced the number of tachyzoites in the peritoneal cavity of mice, but also resulted in their partial malformation (P < 0.05) in vivo. The determination of liver and spleen index and biochemical parameters, such as alanine aminotransferase (ALT), aspartate aminotransferase (AST), glutathione (GSH) and malondialdehyde (MDA), were comprehensively evaluated for compound D4 and E5's anti-T. gondii activity and some damage to the liver. In addition, the results of a docking study of D4 into the T. gondii calcium-dependent protein kinase 1 (TgCDPK1) receptor protein-binding site revealed that its mode of action was possibly as a TgCDPK1 inhibitor. Overall, the results revealed that D4 and E5 are promising lead compounds for the further development and identification of arctigenin derivatives as anti-T. gondii agents.
Collapse
Affiliation(s)
- Hai-Bin Zhang
- Key Laboratory of Natural Resources and Functional Molecules of the Changbai Mountain, Affiliated Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, 133002, China
| | - Qing-Kun Shen
- Key Laboratory of Natural Resources and Functional Molecules of the Changbai Mountain, Affiliated Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, 133002, China
| | - Hui Wang
- Key Laboratory of Natural Resources and Functional Molecules of the Changbai Mountain, Affiliated Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, 133002, China
| | - Chunmei Jin
- Key Laboratory of Natural Resources and Functional Molecules of the Changbai Mountain, Affiliated Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, 133002, China
| | - Chun-Mei Jin
- Key Laboratory of Natural Resources and Functional Molecules of the Changbai Mountain, Affiliated Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, 133002, China.
| | - Zhe-Shan Quan
- Key Laboratory of Natural Resources and Functional Molecules of the Changbai Mountain, Affiliated Ministry of Education, College of Pharmacy, Yanbian University, Yanji, Jilin, 133002, China.
| |
Collapse
|
35
|
Osman H, Georges J, Elsahy D, Hattab EM, Yocom S, Cohen-Gadol AA. In Vivo Microscopy in Neurosurgical Oncology. World Neurosurg 2018; 115:110-127. [PMID: 29653276 DOI: 10.1016/j.wneu.2018.03.218] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 03/29/2018] [Accepted: 03/30/2018] [Indexed: 10/17/2022]
Abstract
Intraoperative neurosurgical histopathologic diagnoses rely on evaluation of rapid tissue preparations such as frozen sections and smears with conventional light microscopy. Although useful, these techniques are time consuming and therefore cannot provide real-time intraoperative feedback. In vivo molecular imaging techniques are emerging as novel methods for generating real-time diagnostic histopathologic images of tumors and their surrounding tissues. These imaging techniques rely on contrast generated by exogenous fluorescent dyes, autofluorescence of endogenous molecules, fluorescence decay of excited molecules, or light scattering. Large molecular imaging instruments are being miniaturized for clinical in vivo use. This review discusses pertinent imaging systems that have been developed for neurosurgical use and imaging techniques currently under development for neurosurgical molecular imaging.
Collapse
Affiliation(s)
- Hany Osman
- Massachusetts General Hospital and Harvard Medical School, Wellman Center for Photomedicine, Boston, Massachusetts, USA
| | - Joseph Georges
- Philadelphia College of Osteopathic Medicine, Department of Neurosurgery, Philadelphia, Pennsylvania, USA
| | - Deena Elsahy
- Indiana University School of Medicine, Indianapolis, Indiana, USA
| | - Eyas M Hattab
- University of Louisville, Department of Pathology and Laboratory Medicine, Louisville, Kentucky, USA
| | - Steven Yocom
- Philadelphia College of Osteopathic Medicine, Department of Neurosurgery, Philadelphia, Pennsylvania, USA
| | - Aaron A Cohen-Gadol
- Goodman Campbell Brain and Spine and Indiana University Department of Neurological Surgery, Indianapolis, Indiana, USA.
| |
Collapse
|
36
|
Leusch FDL, Aneck-Hahn NH, Cavanagh JAE, Du Pasquier D, Hamers T, Hebert A, Neale PA, Scheurer M, Simmons SO, Schriks M. Comparison of in vitro and in vivo bioassays to measure thyroid hormone disrupting activity in water extracts. Chemosphere 2018; 191:868-875. [PMID: 29107228 DOI: 10.1016/j.chemosphere.2017.10.109] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 10/17/2017] [Accepted: 10/20/2017] [Indexed: 05/02/2023]
Abstract
Environmental chemicals can induce thyroid disruption through a number of mechanisms including altered thyroid hormone biosynthesis and transport, as well as activation and inhibition of the thyroid receptor. In the current study six in vitro bioassays indicative of different mechanisms of thyroid disruption and one whole animal in vivo assay were applied to 9 model compounds and 4 different water samples (treated wastewater, surface water, drinking water and ultra-pure lab water; both unspiked and spiked with model compounds) to determine their ability to detect thyroid active compounds. Most assays correctly identified and quantified the model compounds as agonists or antagonists, with the reporter gene assays being the most sensitive. However, the reporter gene assays did not detect significant thyroid activity in any of the water samples, suggesting that activation or inhibition of the thyroid hormone receptor is not a relevant mode of action for thyroid endocrine disruptors in water. The thyroperoxidase (TPO) inhibition assay and transthyretin (TTR) displacement assay (FITC) detected activity in the surface water and treated wastewater samples, but more work is required to assess if this activity is a true measure of thyroid activity or matrix interference. The whole animal Xenopus Embryonic Thyroid Assay (XETA) detected some activity in the unspiked surface water and treated wastewater extracts, but not in unspiked drinking water, and appears to be a suitable assay to detect thyroid activity in environmental waters.
Collapse
Affiliation(s)
- Frederic D L Leusch
- Australian Rivers Institute, Griffith School of Environment, Griffith University, Southport, QLD, 4222, Australia.
| | - Natalie H Aneck-Hahn
- Environmental Chemical Pollution and Health Research Unit, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | | | | | - Timo Hamers
- Vrije Universiteit Amsterdam, Department Environment & Health, De Boelelaan 1108, 1081 HZ, Amsterdam, The Netherlands
| | - Armelle Hebert
- Veolia Research & Innovation, 78600, Maisons-Laffitte, France
| | - Peta A Neale
- Australian Rivers Institute, Griffith School of Environment, Griffith University, Southport, QLD, 4222, Australia
| | - Marco Scheurer
- DVGW - Technologiezentrum Wasser, Karlsruher Str.84, 76139, Karlsruhe, Germany
| | - Steven O Simmons
- National Center for Computational Toxicology, Office of Research and Development, U.S. Environmental Protection Agency, Research Triangle Park, NC, 27711, United States
| | - Merijn Schriks
- KWR Watercycle Research Institute, Groningenhaven 7, 3433 PE, Nieuwegein, The Netherlands; Vitens Drinking Water Company, 8019 BE, Zwolle, The Netherlands
| |
Collapse
|
37
|
Zhang X, Hong XK, Li SJ, Lai DH, Hide G, Lun ZR, Wen YZ. The effect of normal human serum on the mouse trypanosome Trypanosoma musculi in vitro and in vivo. Exp Parasitol 2017; 184:115-120. [PMID: 29246831 DOI: 10.1016/j.exppara.2017.12.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 11/07/2017] [Accepted: 12/11/2017] [Indexed: 12/12/2022]
Abstract
Trypanosoma musculi, a common blood flagellate found in mice, is similar in morphology and life cycle to the rat trypanosome T. lewisi. Both species belong to the subgenus Herpetosoma, and as T. lewisi has recently been shown to be a zoonotic pathogen, there is concern that T. musculi could also be potentially infective to humans. To test this hypothesis, a well-established method, the normal human serum (NHS) incubation test, was carried out which distinguishes human and non-human infective trypanosomes. We found that T. musculi could grow in 0.31% NHS in vitro, and even kept their infectivity to mice after incubation with 10% NHS for 24 h. In in vivo experiments, T. musculi were only slightly affected by NHS injection, confirming that it was less sensitive to the NHS than T. b. brucei, but more sensitive than T. lewisi. This resistance probably does not rely on a restricted uptake of ApoL-1. Due to this partial resistance, we cannot definitively confirm that T. musculi has the potential for infection to humans. As resistance is less than that of T. lewisi, our data suggest that it is unlikely to be a zoonotic pathogen although we would advise caution in the case of immunocompromised people such as AIDS and cancer patients.
Collapse
Affiliation(s)
- Xuan Zhang
- Center for Parasitic Organisms, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Xiao-Kun Hong
- Center for Parasitic Organisms, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Su-Jin Li
- Center for Parasitic Organisms, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - De-Hua Lai
- Center for Parasitic Organisms, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China
| | - Geoff Hide
- Ecosystems and Environment Research Centre and Biomedical Research Centre, School of Environment and Life Sciences, University of Salford, Salford M5 4WT, UK
| | - Zhao-Rong Lun
- Center for Parasitic Organisms, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China; Ecosystems and Environment Research Centre and Biomedical Research Centre, School of Environment and Life Sciences, University of Salford, Salford M5 4WT, UK.
| | - Yan-Zi Wen
- Center for Parasitic Organisms, State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275, PR China.
| |
Collapse
|
38
|
Välitalo P, Massei R, Heiskanen I, Behnisch P, Brack W, Tindall AJ, Du Pasquier D, Küster E, Mikola A, Schulze T, Sillanpää M. Effect-based assessment of toxicity removal during wastewater treatment. Water Res 2017; 126:153-163. [PMID: 28941401 DOI: 10.1016/j.watres.2017.09.014] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2017] [Revised: 08/24/2017] [Accepted: 09/04/2017] [Indexed: 06/07/2023]
Abstract
Wastewaters contain complex mixtures of chemicals, which can cause adverse toxic effects in the receiving environment. In the present study, the toxicity removal during wastewater treatment at seven municipal wastewater treatment plants (WWTPs) was investigated using an effect-based approach. A battery of eight bioassays was applied comprising of cytotoxicity, genotoxicity, endocrine disruption and fish embryo toxicity assays. Human cell-based CALUX assays, transgenic larval models and the fish embryo toxicity test were particularly sensitive to WWTP effluents. The results indicate that most effects were significantly reduced or completely removed during wastewater treatment (76-100%), while embryo toxicity, estrogenic activity and thyroid disruption were still detectable in the effluents suggesting that some harmful substances remain after treatment. The responsiveness of the bioassays was compared and the human cell-based CALUX assays showed highest responsiveness in the samples. Additionally, the fish embryo toxicity test and the transgenic larval models for endocrine disrupting effects showed high responsiveness at low sample concentrations in nearly all of the effluent samples. The results showed a similar effect pattern among all WWTPs investigated, indicating that the wastewater composition could be rather similar at different locations. There were no considerable differences in the toxicity removal efficiencies of the treatment plants and no correlation was observed with WWTP characteristics, such as process configuration or sludge age. This study demonstrated that a biotest battery comprising of multiple endpoints can serve as a powerful tool when assessing water quality or water treatment efficiency in a holistic manner. Rather than analyzing the concentrations of a few selected chemicals, bioassays can be used to complement traditional methods of monitoring in the future by assessing sum-parameter based effects, such as mixture effects, and tackling chemicals that are present at concentrations below chemical analytical detection limits.
Collapse
Affiliation(s)
- Pia Välitalo
- Finnish Environment Institute, Laboratory Centre, Hakuninmaantie 6, 00430, Helsinki, Finland; Aalto University, Department of Civil and Environmental Engineering, Tietotie 1E, 02150, Espoo, Finland.
| | - Riccardo Massei
- UFZ - Helmholtz Centre for Environmental Research GmbH, Leipzig, Germany; Institute for Environmental Research (Biology V), RWTH Aachen University, Aachen, Germany
| | - Ilse Heiskanen
- Finnish Environment Institute, Laboratory Centre, Hakuninmaantie 6, 00430, Helsinki, Finland
| | | | - Werner Brack
- UFZ - Helmholtz Centre for Environmental Research GmbH, Leipzig, Germany; Institute for Environmental Research (Biology V), RWTH Aachen University, Aachen, Germany
| | | | | | - Eberhard Küster
- UFZ - Helmholtz Centre for Environmental Research GmbH, Leipzig, Germany
| | - Anna Mikola
- Aalto University, Department of Civil and Environmental Engineering, Tietotie 1E, 02150, Espoo, Finland
| | - Tobias Schulze
- UFZ - Helmholtz Centre for Environmental Research GmbH, Leipzig, Germany
| | - Markus Sillanpää
- Finnish Environment Institute, Laboratory Centre, Hakuninmaantie 6, 00430, Helsinki, Finland
| |
Collapse
|
39
|
Neale PA, Altenburger R, Aït-Aïssa S, Brion F, Busch W, de Aragão Umbuzeiro G, Denison MS, Du Pasquier D, Hilscherová K, Hollert H, Morales DA, Novák J, Schlichting R, Seiler TB, Serra H, Shao Y, Tindall AJ, Tollefsen KE, Williams TD, Escher BI. Development of a bioanalytical test battery for water quality monitoring: Fingerprinting identified micropollutants and their contribution to effects in surface water. Water Res 2017; 123:734-750. [PMID: 28728110 DOI: 10.1016/j.watres.2017.07.016] [Citation(s) in RCA: 146] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 06/04/2017] [Accepted: 07/07/2017] [Indexed: 05/18/2023]
Abstract
Surface waters can contain a diverse range of organic pollutants, including pesticides, pharmaceuticals and industrial compounds. While bioassays have been used for water quality monitoring, there is limited knowledge regarding the effects of individual micropollutants and their relationship to the overall mixture effect in water samples. In this study, a battery of in vitro bioassays based on human and fish cell lines and whole organism assays using bacteria, algae, daphnids and fish embryos was assembled for use in water quality monitoring. The selection of bioassays was guided by the principles of adverse outcome pathways in order to cover relevant steps in toxicity pathways known to be triggered by environmental water samples. The effects of 34 water pollutants, which were selected based on hazard quotients, available environmental quality standards and mode of action information, were fingerprinted in the bioassay test battery. There was a relatively good agreement between the experimental results and available literature effect data. The majority of the chemicals were active in the assays indicative of apical effects, while fewer chemicals had a response in the specific reporter gene assays, but these effects were typically triggered at lower concentrations. The single chemical effect data were used to improve published mixture toxicity modeling of water samples from the Danube River. While there was a slight increase in the fraction of the bioanalytical equivalents explained for the Danube River samples, for some endpoints less than 1% of the observed effect could be explained by the studied chemicals. The new mixture models essentially confirmed previous findings from many studies monitoring water quality using both chemical analysis and bioanalytical tools. In short, our results indicate that many more chemicals contribute to the biological effect than those that are typically quantified by chemical monitoring programs or those regulated by environmental quality standards. This study not only demonstrates the utility of fingerprinting single chemicals for an improved understanding of the biological effect of pollutants, but also highlights the need to apply bioassays for water quality monitoring in order to prevent underestimation of the overall biological effect.
Collapse
Affiliation(s)
- Peta A Neale
- Australian Rivers Institute, Griffith School of Environment, Griffith University, Southport, QLD, 4222, Australia; The University of Queensland, National Research Centre for Environmental Toxicology (Entox), Brisbane, QLD, 4108, Australia
| | - Rolf Altenburger
- UFZ - Helmholtz Centre for Environmental Research, 04318 Leipzig, Germany
| | - Selim Aït-Aïssa
- Institut National de l'Environnement Industriel et des Risques INERIS, Unité d'Ecotoxicologie, 60550, Verneuil-en-Halatte, France
| | - François Brion
- Institut National de l'Environnement Industriel et des Risques INERIS, Unité d'Ecotoxicologie, 60550, Verneuil-en-Halatte, France
| | - Wibke Busch
- UFZ - Helmholtz Centre for Environmental Research, 04318 Leipzig, Germany
| | | | - Michael S Denison
- Department of Environmental Toxicology, University of California, Davis, CA, 95616, United States
| | - David Du Pasquier
- WatchFrog, Bâtiment Genavenir 3, 1 rue Pierre Fontaine, 91000 Evry, France
| | - Klára Hilscherová
- Masaryk University, Research Centre for Toxic Compounds in the Environment (RECETOX), Kamenice 753/5, 62500 Brno, Czech Republic
| | - Henner Hollert
- Department of Ecosystem Analysis, Institute for Environmental Research, RWTH Aachen University, 52074 Aachen, Germany
| | - Daniel A Morales
- School of Technology, University of Campinas, Limeira, SP, 13484-332, Brazil
| | - Jiří Novák
- Masaryk University, Research Centre for Toxic Compounds in the Environment (RECETOX), Kamenice 753/5, 62500 Brno, Czech Republic
| | - Rita Schlichting
- UFZ - Helmholtz Centre for Environmental Research, 04318 Leipzig, Germany
| | - Thomas-Benjamin Seiler
- Department of Ecosystem Analysis, Institute for Environmental Research, RWTH Aachen University, 52074 Aachen, Germany
| | - Helene Serra
- Institut National de l'Environnement Industriel et des Risques INERIS, Unité d'Ecotoxicologie, 60550, Verneuil-en-Halatte, France
| | - Ying Shao
- Department of Ecosystem Analysis, Institute for Environmental Research, RWTH Aachen University, 52074 Aachen, Germany
| | - Andrew J Tindall
- WatchFrog, Bâtiment Genavenir 3, 1 rue Pierre Fontaine, 91000 Evry, France
| | - Knut Erik Tollefsen
- Norwegian Institute for Water Research NIVA, Gaustadalléen 21, 0349 Oslo, Norway
| | - Timothy D Williams
- School of Biosciences, The University of Birmingham, Birmingham, B15 2TT, UK
| | - Beate I Escher
- The University of Queensland, National Research Centre for Environmental Toxicology (Entox), Brisbane, QLD, 4108, Australia; UFZ - Helmholtz Centre for Environmental Research, 04318 Leipzig, Germany; Eberhard Karls University Tübingen, Environmental Toxicology, Center for Applied Geosciences, 72074 Tübingen, Germany.
| |
Collapse
|
40
|
Maeda M, Muragaki Y, Okamoto J, Yoshizawa S, Abe N, Nakamoto H, Ishii H, Kawabata K, Umemura S, Nishiyama N, Kataoka K, Iseki H. Sonodynamic Therapy Based on Combined Use of Low Dose Administration of Epirubicin-Incorporating Drug Delivery System and Focused Ultrasound. Ultrasound Med Biol 2017; 43:2295-2301. [PMID: 28705555 DOI: 10.1016/j.ultrasmedbio.2017.06.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 05/27/2017] [Accepted: 06/02/2017] [Indexed: 06/07/2023]
Abstract
Sonodynamic therapy (SDT) is currently considered as one of the promising minimally invasive treatment options for solid cancers. SDT is based on the combined use of a sonosensitizer drug and high-intensity focused ultrasound (HIFU) to produce cytotoxic reactive oxygen species (ROS) in and around neoplastic cells. Anthracycline drugs, including epirubicin (EPI), have been well known as effective sonosensitizers after interaction with focused ultrasound. Recently a new anticancer drug delivery system (DDS), NC-6300, has been developed that comprises EPI through an acid-labile hydrazone bond. In previous in vivo studies, NC-6300 showed basic drug safety and an excellent concentration property of EPI, and recently has been tested in clinical trials. For realizing minimally invasive cancer treatment, the present study demonstrated the effectiveness and feasibility of DDS-based SDT, which combined a small dose of NC-6300 and low energy of HIFU in mouse models of colon cancer and pancreatic cancer.
Collapse
Affiliation(s)
- Masanori Maeda
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan
| | - Yoshihiro Muragaki
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan.
| | - Jun Okamoto
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan
| | - Shin Yoshizawa
- Graduate School of Biomedical Engineering, Tohoku University, Sendai, Miyagi, Japan
| | | | | | | | | | - Shinichiro Umemura
- Graduate School of Biomedical Engineering, Tohoku University, Sendai, Miyagi, Japan
| | - Nobuhiro Nishiyama
- Polymer Chemistry Division, Tokyo Institute of Technology, Yokohama, Kanagawa, Japan
| | - Kazunori Kataoka
- Department of Materials Engineering, The University of Tokyo, Bunkyo, Tokyo, Japan
| | - Hiroshi Iseki
- Institute of Advanced Biomedical Engineering and Science, Tokyo Women's Medical University, Shinjuku, Tokyo, Japan
| |
Collapse
|
41
|
Yan K, Dong Z, Wijayawardena MAA, Liu Y, Naidu R, Semple K. Measurement of soil lead bioavailability and influence of soil types and properties: A review. Chemosphere 2017; 184:27-42. [PMID: 28578193 DOI: 10.1016/j.chemosphere.2017.05.143] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/20/2017] [Accepted: 05/24/2017] [Indexed: 06/07/2023]
Abstract
Lead (Pb) is a widespread heavy metal which is harmful to human health, especially to young children. To provide a human health risk assessment that is more relevant to real conditions, Pb bioavailability in soils is increasingly employed in the assessment procedure. Both in vivo and in vitro measurements for lead bioavailability are available. In vivo models are time- consuming and expensive, while in vitro models are rapid, economic, reproducible, and reliable while involving more uncertainties. Uncertainties in various measurements create difficulties in accurately predicting Pb bioavailability, resulting in the unnecessary remediation of sites. In this critical review, we utilised available data from in vivo and in vitro studies to identify the key parameters influencing the in vitro measurements, and presented uncertainties existing in Pb bioavailability measurements. Soil type, properties and metal content are reported to influence lead bioavailability; however, the differences in methods for assessing bioavailability and the differences in Pb source limit one's ability to conduct statistical analyses on influences of soil factors on Pb bioavailability. The information provided in the review is fundamentally useful for the measurement of bioavailability and risk assessment practices.
Collapse
Affiliation(s)
- Kaihong Yan
- ATC Building, Global Center for Environmental Remediation, Faculty of Science, University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), University of Newcastle, Callaghan, NSW 2308, Australia
| | - Zhaomin Dong
- ATC Building, Global Center for Environmental Remediation, Faculty of Science, University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), University of Newcastle, Callaghan, NSW 2308, Australia
| | - M A Ayanka Wijayawardena
- ATC Building, Global Center for Environmental Remediation, Faculty of Science, University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), University of Newcastle, Callaghan, NSW 2308, Australia
| | - Yanju Liu
- ATC Building, Global Center for Environmental Remediation, Faculty of Science, University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), University of Newcastle, Callaghan, NSW 2308, Australia
| | - Ravi Naidu
- ATC Building, Global Center for Environmental Remediation, Faculty of Science, University of Newcastle, Callaghan, NSW 2308, Australia; Cooperative Research Centre for Contamination Assessment and Remediation of the Environment (CRC CARE), University of Newcastle, Callaghan, NSW 2308, Australia.
| | - Kirk Semple
- Lancaster Environment Centre, Lancaster University, United Kingdom
| |
Collapse
|
42
|
Bozorov K, Nie LF, Zhao J, Aisa HA. 2-Aminothiophene scaffolds: Diverse biological and pharmacological attributes in medicinal chemistry. Eur J Med Chem 2017; 140:465-93. [PMID: 28987607 DOI: 10.1016/j.ejmech.2017.09.039] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 09/02/2017] [Accepted: 09/19/2017] [Indexed: 12/30/2022]
Abstract
2-Aminothiophenes are important five-membered heterocyclic building blocks in organic synthesis, and the chemistry of these small molecules is still developing based on the discovery of cyclization by Gewald. Another attractive feature of 2-aminothiophene scaffolds is their ability to act as synthons for the synthesis of biological active thiophene-containing heterocycles, conjugates and hybrids. Currently, the biological actions of 2-aminothiophenes or their 2-N-substituted analogues are still being investigated because of their various mechanisms of action (e.g., pharmacophore and pharmacokinetic properties). Likewise, the 2-aminothiophene family is used as diverse promising selective inhibitors, receptors, and modulators in medicinal chemistry, and these compounds even exhibit effective pharmacological properties in the various clinical phases of appropriate diseases. In this review, major biological and pharmacological reports on 2-aminothiophenes and related compounds have been highlighted; most perspective drug-candidate hits were selected for discussion and described, along with additional synthetic pathways. In addition, we focused on the literature dedicated to 2-aminothiophenes and 2-N-substituted derivatives, which have been published from 2010 to 2017.
Collapse
|
43
|
Filio-Rodríguez G, Estrada-García I, Arce-Paredes P, Moreno-Altamirano MM, Islas-Trujillo S, Ponce-Regalado MD, Rojas-Espinosa O. In vivo induction of neutrophil extracellular traps by Mycobacterium tuberculosis in a guinea pig model. Innate Immun 2017; 23:625-637. [PMID: 28929912 DOI: 10.1177/1753425917732406] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
In 2004, a novel mechanism of cellular death, called 'NETosis', was described in neutrophils. This mechanism, different from necrosis and apoptosis, is characterized by the release of chromatin webs admixed with microbicidal granular proteins and peptides (NETs). NETs trap and kill a variety of microorganisms. Diverse microorganisms, including Mycobacterium tuberculosis, are NET inducers in vitro. The aim of this study was to examine whether M. tuberculosis can also induce NETs in vivo and if the NETs are bactericidal to the microorganism. Guinea pigs were intradermally inoculated with M. tuberculosis H37Rv, and the production of NETs was investigated at several time points thereafter. NETs were detected as early as 30 min post-inoculation and were clearly evident by 4 h post-inoculation. NETs produced in vivo contained DNA, myeloperoxidase, elastase, histones, ROS and acid-fast bacilli. Viable and heat-killed M. tuberculosis, as well as Mycobacterium bovis BCG were efficient NET inducers, as were unilamellar liposomes prepared with lipids from M. tuberculosis. In vitro, guinea pig neutrophils also produced NETs in response to M. tuberculosis. However, neither the in vivo nor the in vitro-produced NETs were able to kill M. tuberculosis. Nevertheless, in vivo, neutrophils might propitiate recruitment and activation of more efficient microbicidal cells.
Collapse
Affiliation(s)
- Georgina Filio-Rodríguez
- 1 Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Carpio y Plan de Ayala, Colonia Santo Tomas, México
| | - Iris Estrada-García
- 1 Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Carpio y Plan de Ayala, Colonia Santo Tomas, México
| | - Patricia Arce-Paredes
- 1 Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Carpio y Plan de Ayala, Colonia Santo Tomas, México
| | - María M Moreno-Altamirano
- 1 Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Carpio y Plan de Ayala, Colonia Santo Tomas, México
| | - Sergio Islas-Trujillo
- 1 Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Carpio y Plan de Ayala, Colonia Santo Tomas, México
| | - M Dolores Ponce-Regalado
- 2 Departamento de Clínicas, Centro Universitario de los Altos, Universidad de Guadalajara, Carretera a Yahualica, Jalisco, México
| | - Oscar Rojas-Espinosa
- 1 Departamento de Inmunología, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Carpio y Plan de Ayala, Colonia Santo Tomas, México
| |
Collapse
|
44
|
Aasa J, Törnqvist M, Abramsson-Zetterberg L. Measurement of micronuclei and internal dose in mice demonstrates that 3-monochloropropane-1,2-diol (3-MCPD) has no genotoxic potency in vivo. Food Chem Toxicol 2017; 109:414-420. [PMID: 28917435 DOI: 10.1016/j.fct.2017.09.019] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2017] [Revised: 08/16/2017] [Accepted: 09/11/2017] [Indexed: 11/18/2022]
Abstract
In this study 3-monochloropropane-1,2-diol (3-MCPD), a compound that appears as contaminant in refined cooking oils, has been studied with regard to genotoxicity in vivo (mice) with simultaneous measurement of internal dose using state-of-the-art methodologies. Genotoxicity (chromosomal aberrations) was measured by flow cytometry with dual lasers as the frequency of micronuclei in erythrocytes in peripheral blood from BalbC mice intraperitoneally exposed to 3-MCPD (0, 50, 75, 100, 125 mg/kg). The internal doses of 3-MCPD in the mice were calculated from N-(2,3-dihydroxypropyl)-valine adducts to hemoglobin (Hb), quantified at very low levels by high-resolution mass spectrometry. Convincing evidence for absence of genotoxic potency in correlation to measured internal doses in the mice was demonstrated, despite relatively high administered doses of 3-MCPD. The results are discussed in relation to another food contaminant that is formed as ester in parallel to 3-MCPD esters in oil processing, i.e. glycidol, which has been studied previously by us in a similar experimental setup. Glycidol has been shown to be genotoxic, and in addition to have ca. 1000 times higher rate of adduct formation compared to that observed for 3-MCPD. The conclusion is that at simultaneous exposure to 3-MCPD and glycidol the concern about genotoxicity would be glycidol.
Collapse
Affiliation(s)
- Jenny Aasa
- Department of Environmental Science and Analytical Chemistry, Stockholm University, Sweden
| | - Margareta Törnqvist
- Department of Environmental Science and Analytical Chemistry, Stockholm University, Sweden.
| | - Lilianne Abramsson-Zetterberg
- Department of Environmental Science and Analytical Chemistry, Stockholm University, Sweden; National Food Agency, Uppsala, Sweden.
| |
Collapse
|
45
|
Lopez NN, Patel GC, Raychaudhuri U, Aryal S, Phan TN, Clark AF, Millar JC. Anterior chamber perfusion versus posterior chamber perfusion does not influence measurement of aqueous outflow facility in living mice by constant flow infusion. Exp Eye Res 2017; 164:95-108. [PMID: 28822760 DOI: 10.1016/j.exer.2017.08.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 07/13/2017] [Accepted: 08/14/2017] [Indexed: 11/25/2022]
Abstract
Mice are now routinely utilized in studies of aqueous humor outflow dynamics. In particular, conventional aqueous outflow facility (C) is routinely measured via perfusion of the aqueous chamber by a number of laboratories. However, in mouse eyes perfused ex-vivo, values for C are variable depending upon whether the perfusate is introduced into the posterior chamber (PC) versus the anterior chamber (AC). Perfusion via the AC leads to posterior bowing of the iris, and traction on the iris root/scleral spur, which may increase C. Perfusion via the PC does not yield this effect. But the equivalent situation in living mice has not been investigated. We sought to determine whether AC versus PC perfusion of the living mouse eye may lead to different values for C. All experiments were conducted in C57BL/6J mice (all ♀) between the ages of 20 and 30 weeks. Mice were divided into groups of 3-4 animals each. In all groups, both eyes were perfused. C was measured in groups 1 and 2 by constant flow infusion (from a 50 μL microsyringe) via needle placement in the AC, and in the PC, respectively. To investigate the effect of ciliary muscle (CM) tone on C, groups 3 and 4 were perfused live via the AC or PC with tropicamide (muscarinic receptor antagonist) added to the perfusate at a concentration of 100 μM. To investigate immediate effect of euthanasia, groups 5 and 6 were perfused 15-30 min after death via the AC or PC. To investigate the effect of CM tone on C immediately following euthanasia, groups 7 and 8 were perfused 15-30 min after death via the AC or PC with tropicamide added to the perfusate at a concentration of 100 μM. C in Groups 1 (AC perfusion) and 2 (PC perfusion) was computed to be 19.5 ± 0.8 versus 21.0 ± 2.1 nL/min/mmHg, respectively (mean ± SEM, p > 0.4, not significantly different). In live animals in which tropicamide was present in the perfusate, C in Group 3 (AC perfusion) was significantly greater than C in Group 4 (PC perfusion) (22.0 ± 4.0 versus 14.0 ± 2.0 nL/min/mmHg, respectively, p = 0.0021). In animals immediately following death, C in groups 5 (AC perfusion) and 6 (PC perfusion) was computed to be 21.2 ± 2.0 versus 22.8 ± 1.4 nL/min/mmHg, respectively (mean ± SEM, p = 0.1196, not significantly different). In dead animals in which tropicamide was present in the perfusate, C in group 7 (AC perfusion) was greater than C in group 8 (PC perfusion) (20.6 ± 1.4 versus 14.2 ± 2.6 nL/min/mmHg, respectively, p < 0.0001). C in eyes in situ in living mice or euthanized animals within 15-30 min post mortem is not significantly different when measured via AC perfusion or PC perfusion. In eyes of live or freshly euthanized mice, C is greater when measured via AC versus PC perfusion when tropicamide (a mydriatic and cycloplegic agent) is present in the perfusate.
Collapse
Affiliation(s)
- Navita N Lopez
- North Texas Eye Research Institute (NTERI), University of North Texas Health Science Center (UNTHSC), 3500 Camp Bowie Boulevard, Fort Worth, TX 76107, USA
| | - Gaurang C Patel
- North Texas Eye Research Institute (NTERI), University of North Texas Health Science Center (UNTHSC), 3500 Camp Bowie Boulevard, Fort Worth, TX 76107, USA
| | - Urmimala Raychaudhuri
- North Texas Eye Research Institute (NTERI), University of North Texas Health Science Center (UNTHSC), 3500 Camp Bowie Boulevard, Fort Worth, TX 76107, USA
| | - Subhash Aryal
- Department of Biostatistics and Epidemiology, University of North Texas Health Science Center (UNTHSC), 3500 Camp Bowie Boulevard, Fort Worth, TX 76107, USA
| | - Tien N Phan
- North Texas Eye Research Institute (NTERI), University of North Texas Health Science Center (UNTHSC), 3500 Camp Bowie Boulevard, Fort Worth, TX 76107, USA
| | - Abbot F Clark
- North Texas Eye Research Institute (NTERI), University of North Texas Health Science Center (UNTHSC), 3500 Camp Bowie Boulevard, Fort Worth, TX 76107, USA
| | - J Cameron Millar
- North Texas Eye Research Institute (NTERI), University of North Texas Health Science Center (UNTHSC), 3500 Camp Bowie Boulevard, Fort Worth, TX 76107, USA.
| |
Collapse
|
46
|
Abstract
Surgical excision of brain tumors provides a means of cytoreduction and diagnosis while minimizing neurologic deficit and improving overall survival. Despite advances in functional and three-dimensional stereotactic navigation and intraoperative MRI, delineating tissue in real time with physiologic confirmation is challenging. Raman spectroscopy has potential to be an important modality in the intraoperative evaluation of tissue during surgical resection. In vitro experimental studies have shown that this technique can be used to differentiate normal brain tissue from tissue with infiltrating cancer cells and dense cancerous masses with high specificity, indicating the feasibility of this method for in vivo application.
Collapse
Affiliation(s)
- Michelle Brusatori
- Department of Surgery, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI 48202, USA; Department of Biomedical Engineering, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI 48202, USA; Department of Smart Sensors and Integrated Microsystems, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI 48202, USA
| | - Gregory Auner
- Department of Surgery, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI 48202, USA; Department of Biomedical Engineering, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI 48202, USA; Department of Smart Sensors and Integrated Microsystems, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI 48202, USA; The Detroit Institute of Ophthalmology, Henry Ford Health System, 15415 E. Jefferson Avenue, Grosse Pointe Park, MI 48230, USA
| | - Thomas Noh
- Department of Neurosurgery, Hermelin Brain Tumor Center, Henry Ford Health System, 2799 West Grand Boulevard, Detroit, MI 48202, USA; Josephine Ford Cancer Center, Henry Ford Health System, 2799 West Grand Boulevard, Detroit, MI 48202, USA
| | - Lisa Scarpace
- Department of Neurosurgery, Hermelin Brain Tumor Center, Henry Ford Health System, 2799 West Grand Boulevard, Detroit, MI 48202, USA
| | - Brandy Broadbent
- Department of Surgery, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI 48202, USA; Department of Biomedical Engineering, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI 48202, USA; Department of Smart Sensors and Integrated Microsystems, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI 48202, USA
| | - Steven N Kalkanis
- Department of Neurosurgery, Hermelin Brain Tumor Center, Henry Ford Health System, 2799 West Grand Boulevard, Detroit, MI 48202, USA; Josephine Ford Cancer Center, Henry Ford Health System, 2799 West Grand Boulevard, Detroit, MI 48202, USA.
| |
Collapse
|
47
|
Abstract
Raman spectroscopy provides a noninvasive bedside tool that captures unique optical signals via molecular vibrations in tissue samples. Raman theory was discovered at the beginning of the twentieth century, but it was not until the past few decades that it has been used to differentiate skin neoplasms. We provide a brief description of Raman spectroscopy for in vivo skin cancer diagnosis, including the physical principles underlying Raman spectroscopy, its advantages, typical spectra of skin pathologies, and its clinical application for aiding skin cancer diagnosis.
Collapse
Affiliation(s)
- Jianhua Zhao
- Photomedicine Institute, Department of Dermatology and Skin Science, Vancouver Coastal Health Research Institute, The University of British Columbia, 835 West 10th Avenue, Vancouver, British Columbia V5Z 4E8, Canada; Imaging Unit, Integrative Oncology Department, The BC Cancer Agency Research Center, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Haishan Zeng
- Photomedicine Institute, Department of Dermatology and Skin Science, Vancouver Coastal Health Research Institute, The University of British Columbia, 835 West 10th Avenue, Vancouver, British Columbia V5Z 4E8, Canada; Imaging Unit, Integrative Oncology Department, The BC Cancer Agency Research Center, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Sunil Kalia
- Photomedicine Institute, Department of Dermatology and Skin Science, Vancouver Coastal Health Research Institute, The University of British Columbia, 835 West 10th Avenue, Vancouver, British Columbia V5Z 4E8, Canada; Imaging Unit, Integrative Oncology Department, The BC Cancer Agency Research Center, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada
| | - Harvey Lui
- Photomedicine Institute, Department of Dermatology and Skin Science, Vancouver Coastal Health Research Institute, The University of British Columbia, 835 West 10th Avenue, Vancouver, British Columbia V5Z 4E8, Canada; Imaging Unit, Integrative Oncology Department, The BC Cancer Agency Research Center, 675 West 10th Avenue, Vancouver, British Columbia V5Z 1L3, Canada.
| |
Collapse
|
48
|
Sak B, Jandová A, Doležal K, Kváč M, Květoňová D, Hlásková L, Rost M, Olšanský M, Nurcahyo W, Foitová I. Effects of selected Indonesian plant extracts on E. cuniculi infection in vivo. Exp Parasitol 2017; 181:94-101. [PMID: 28779899 DOI: 10.1016/j.exppara.2017.07.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2017] [Revised: 06/01/2017] [Accepted: 07/31/2017] [Indexed: 11/25/2022]
Abstract
The present study was conducted to evaluate the methanolic extracts from several plant leaves widely used in traditional medicine to cure digestive tract disorders and in the self-medication of wild animals such as non-human primates, namely Archidendron fagifolium, Diospyros sumatrana, Shorea sumatrana, and Piper betle leaves, with regard to their antimicrosporidial activity against Encephalitozoon cuniculi in immunocompetent BALB/c mice determined using molecular detection of microsporidial DNA (qPCR) in various tissues and body fluids of infected, treated mice. Of the plant extracts tested, Diospyros sumatrana provided the most promising results, reducing spore shedding by 88% compared to untreated controls. Moreover, total burden per 1 g of tissue in the D. sumatrana extract-treated group reached 87% reduction compared to untreated controls, which was comparable to the effect of the standard drug, Albendazole. This data represents the baseline necessary for further research focused on determining the structure, activity and modes of action of the active compounds, mainly of D. sumatrana, enabling subsequent development of antimicrosporidial remedies.
Collapse
Affiliation(s)
- Bohumil Sak
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic.
| | - Anna Jandová
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic
| | - Karel Doležal
- Department of Chemical Biology and Genetics, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacký University, Olomouc, Czech Republic; Laboratory of Growth Regulators, Centre of the Region Haná for Biotechnological and Agricultural Research, Faculty of Science, Palacky University & Institute of Experimental Botany, Czech Academy of Sciences, Olomouc, Czech Republic
| | - Martin Kváč
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic; Faculty of Agriculture, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic
| | - Dana Květoňová
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic
| | - Lenka Hlásková
- Institute of Parasitology, Biology Centre, Czech Academy of Sciences, České Budějovice, Czech Republic
| | - Michael Rost
- Faculty of Economics, University of South Bohemia in České Budějovice, České Budějovice, Czech Republic
| | - Milan Olšanský
- UMI - Saving of Pongidae Foundation, Brno, Czech Republic
| | - Wisnu Nurcahyo
- Department of Parasitology, Faculty of Veterinary Medicine, Gadjah Mada University, Yogyakarta, Indonesia
| | - Ivona Foitová
- Department of Parasitology, Faculty of Veterinary Medicine, Gadjah Mada University, Yogyakarta, Indonesia; Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czech Republic
| |
Collapse
|
49
|
Abstract
BACKGROUND The Vestibular Microphonic (VM) has only featured in a handful of publications, mostly involving non-mammalian and ex vivo models. The VM is the extracellular analogue of the vestibular hair cell receptor current, and offers a tool to monitor vestibular hair cell activity in vivo. OBJECTIVE To characterise features of the VM measured in vivo in guinea pigs, using a relatively simple experimental setup. METHODS The VM, evoked by bone-conducted vibration (BCV), was recorded from the basal surface of either the utricular or saccular macula after surgical removal of the cochlea, in 27 guinea pigs. RESULTS The VM remained after vestibular nerve blockade, but was abolished following end-organ destruction or death. The VM reversed polarity as the recording electrode tracked across the utricular or saccular macula surface, or through the utricular macula. The VM could be evoked by BCV stimuli of frequencies between 100 Hz and 5 kHz, and was largest to vibrations between 600 Hz and 800 Hz. Experimental manipulations demonstrated a reduction in the VM amplitude with maculae displacement, or rupture of the utricular membrane. CONCLUSIONS Results mirror those obtained in previous ex vivo studies, and further demonstrate that vestibular hair cells are sensitive to vibrations of several kilohertz. Changes in the VM with maculae displacement or rupture suggest utricular hydrops may alter vestibular hair cell sensitivity due to either mechanical or ionic changes.
Collapse
Affiliation(s)
- C J Pastras
- The Meniere's Laboratory, Sydney Medical School, The University of Sydney, Sydney, NSW, 2050, Australia
| | - I S Curthoys
- Vestibular Research Laboratory, The University of Sydney, School of Psychology, Sydney, NSW, 2050, Australia
| | - D J Brown
- The Meniere's Laboratory, Sydney Medical School, The University of Sydney, Sydney, NSW, 2050, Australia.
| |
Collapse
|
50
|
Havelek R, Muthna D, Tomsik P, Kralovec K, Seifrtova M, Cahlikova L, Hostalkova A, Safratova M, Perwein M, Cermakova E, Rezacova M. Anticancer potential of Amaryllidaceae alkaloids evaluated by screening with a panel of human cells, real-time cellular analysis and Ehrlich tumor-bearing mice. Chem Biol Interact 2017; 275:121-132. [PMID: 28756149 DOI: 10.1016/j.cbi.2017.07.018] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 07/20/2017] [Accepted: 07/25/2017] [Indexed: 11/28/2022]
Abstract
In this study, twenty-two Amaryllidaceae alkaloids were screened for their anticancer potential. All isolates were evaluated for antiproliferative activities on a panel of 17 human cell types of different tissue origin using WST-1 assay. In addition, we determined the antiproliferative effect with a real-time cell analysis xCELLigence system. Thereafter, to evaluate the barely known in vivo anticancer potential of the most potent molecule haemanthamine, a preliminary study was performed using an Ehrlich tumor-bearing mice model. The results showed that haemanthamine, lycorine and haemanthidine exerted the highest antiproliferative activity. The mean growth percent (GP) value after a single-dose 10 μM treatment was for haemanthamine 21%, for lycorine 21% and for haemanthidine 27% that of untreated control cells (100%). Furthermore, haemanthamine, lycorine and haemanthidine exhibited significant cytotoxicities against all the tested cell lines with individual IC50 values in the micromolar range. Dynamic real-time measures of impedance by xCELLigence indicated that these three compounds suppress cell proliferation after 10 h of treatment at a concentration of 10 μM or higher. Regrettably, in a follow-up in vivo antitumor activity study, haemanthamine showed no statistically significant reduction in the tumor size with no prolongation of survival time of Ehrlich tumor-bearing mice. Taken together, these results provide a new clue and guidance for exploiting Amaryllidaceae alkaloids as anticancer agents.
Collapse
Affiliation(s)
- Radim Havelek
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, Simkova 870, Hradec Kralove 500 03, Czech Republic.
| | - Darina Muthna
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, Simkova 870, Hradec Kralove 500 03, Czech Republic
| | - Pavel Tomsik
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, Simkova 870, Hradec Kralove 500 03, Czech Republic
| | - Karel Kralovec
- Department of Biological and Biochemical Sciences, Faculty of Chemical Technology, University of Pardubice, Studentska 573, Pardubice 532 10, Czech Republic
| | - Martina Seifrtova
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, Simkova 870, Hradec Kralove 500 03, Czech Republic
| | - Lucie Cahlikova
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, Hradec Kralove 500 05, Czech Republic.
| | - Anna Hostalkova
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, Hradec Kralove 500 05, Czech Republic
| | - Marcela Safratova
- ADINACO Research Group, Department of Pharmaceutical Botany, Faculty of Pharmacy, Charles University, Heyrovskeho 1203, Hradec Kralove 500 05, Czech Republic
| | - Maria Perwein
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, Simkova 870, Hradec Kralove 500 03, Czech Republic
| | - Eva Cermakova
- Department of Medical Biophysics, Faculty of Medicine in Hradec Kralove, Charles University, Simkova 870, Hradec Kralove 500 03, Czech Republic
| | - Martina Rezacova
- Department of Medical Biochemistry, Faculty of Medicine in Hradec Kralove, Charles University, Simkova 870, Hradec Kralove 500 03, Czech Republic
| |
Collapse
|