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Lynam M, Keatley D, Maker G, Coumbaros J. The prevalence of selected licit and illicit drugs in drug facilitated sexual assaults. Forensic Sci Int Synerg 2024; 9:100545. [PMID: 39148950 PMCID: PMC11325276 DOI: 10.1016/j.fsisyn.2024.100545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/11/2024] [Accepted: 07/16/2024] [Indexed: 08/17/2024]
Abstract
Little is known about the prevalence of incapacitating substances present in drug facilitated sexual assaults (DFSA). Presented here is a literature review conducted to provide background information, such as symptoms, exacerbations, and drug interactions, on drugs typically implicated in DFSA, namely gamma-hydroxybutyrate (GHB), gamma-butyrolactone (GBL), 1,4-butanediol (1,4-BD), ketamine, diazepam, oxycodone, methamphetamine, and alcohol. Literature found through Scopus and Pubmed was reviewed to determine the current prevalence of these substances in DFSA with a focus on Australian data. The global literature revealed that there is a wide variety of substances used in DFSA and the prevalence varied by country. For example, it was found that in Northern Ireland, opioids were most prevalent whereas in France, benzodiazepines were most prevalent. In Australia the review revealed a lack of contemporary data with the most recent report in Victoria using data collected during 2011-2013. The literature also revealed there can be an important difference between self-reported substance use and substances discovered via toxicological analysis. This can be due to the challenges of biological detection, reliability of self-reporting, and the possibility of a substance being introduced to a person's food or drink without their knowledge. This review highlights the need for the collection and analysis of current data pertaining to DFSA reports and the drugs detected, and due to the constantly evolving picture of both licit and illicit drug use an assessment of the role of prescription medications in DFSA due to drug-drug interactions as well as potential to incapacitate is warranted.
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Affiliation(s)
- Marie Lynam
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, Western Australia, 6150, Australia
| | - David Keatley
- School of Law, Murdoch University, Murdoch, Western Australia, 6150, Australia
| | - Garth Maker
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, Western Australia, 6150, Australia
- Centre for Computational and Systems Medicine, Murdoch University, Murdoch, Western Australia, 6150, Australia
| | - John Coumbaros
- School of Medical, Molecular and Forensic Sciences, Murdoch University, Murdoch, Western Australia, 6150, Australia
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Lattibeaudiere KG, Alexander-Lindo RL. Oleic Acid and Succinic Acid: A Potent Nutritional Supplement in Improving Hepatic Glycaemic Control in Type 2 Diabetic Sprague-Dawley Rats. Adv Pharmacol Pharm Sci 2024; 2024:5556722. [PMID: 38938594 PMCID: PMC11208809 DOI: 10.1155/2024/5556722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 03/29/2024] [Accepted: 06/05/2024] [Indexed: 06/29/2024] Open
Abstract
Nutritional supplements are gaining traction for their effects in mitigating the impacts of various health conditions. In particular, many supplements are being proposed to reduce the impacts of type 2 diabetes (T2D), a metabolic condition that has reached global epidemic proportions. Recently, a supplement of oleic acid (OA) and succinic acid (SA; 1 : 1, w/w) was reported to improve glycaemic control in type 2 diabetic (T2D) Sprague-Dawley (S-D) rats through ameliorating insulin release and sensitivity. Here, we investigate the effects of the supplement (OA and SA) on hepatic and pancreatic function in T2D S-D rats. Eighteen (18) S-D rats were rendered diabetic and were divided into three equal groups: diabetic control, diabetic treatment, and diabetic glibenclamide. Another 12 S-D rats were obtained and served as the normal groups. The animals were treated daily with the vehicle, OA and SA (800 mg/kg body weight (bw); 1 : 1), or glibenclamide (10 mg/kg bw) which served as the positive control. The findings indicated that treatment with the supplement resulted in a 35.69 ± 4.22% reduction (p=0.006) in blood glucose levels (BGL). Analysis of hepatic enzymes depicted that the nutritional supplement reduced the activity of the gluconeogenesis enzyme, glucose-6-phosphatase (G6P) while improved the activity of catabolic enzymes such as glucose-6-phosphate dehydrogenase (G6PD) and pyruvate kinase (PK). Furthermore, the supplement attenuated oxidative stress through restoration of catalase (CAT) and superoxide dismutase (SOD), while reducing malondialdehyde (MDA) levels. Finally, the supplement showed no liver or kidney toxicity and improved the size and number of pancreatic islets of Langerhans, indicating its potential application in treating T2D. The study highlighted that a supplement of the two organic acids may be beneficial in reducing the rate of pathogenesis of type 2 diabetes. Therefore, it may offer therapeutic value as a dietary or nutritional supplement in the approach against diabetes and its complications.
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Affiliation(s)
- Kemmoy G. Lattibeaudiere
- School of Natural and Applied Sciences, Faculty of Science and Sport, University of Technology, Kingston, Jamaica
- Basic Medical Sciences, Faculty of Medical Sciences, The University of the West Indies, Mona, Kingston, Jamaica
| | - Ruby Lisa Alexander-Lindo
- Basic Medical Sciences, Faculty of Medical Sciences, The University of the West Indies, Mona, Kingston, Jamaica
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3
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Ganzerla MD, Indolfo NDC, Oliveira LCM, Doratioto TR, Avelino TM, de Azevedo RJ, Tofani LB, Terra MF, Elias GB, de Sousa IL, Alborguetti MR, Rocco SA, Arroteia KF, Figueira ACM. Unveiling the intricacies of BPA and BPS: comprehensive insights into its toxic effects using a cutting-edge microphysiological system. Toxicol In Vitro 2024; 98:105849. [PMID: 38772494 DOI: 10.1016/j.tiv.2024.105849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2024] [Revised: 05/14/2024] [Accepted: 05/17/2024] [Indexed: 05/23/2024]
Abstract
Concerns over Bisphenol A (BPA) and its substitute, Bisphenol S (BPS), have led to innovative exploration due to potential adverse health effects. BPS, replacing BPA in some regions to avoid toxic impacts, remains insufficiently studied. Besides this, the organ-on-a-chip technology emerges as a transformative solution in drug discovery and chemiclas toxicity testing, minimizing costs and aligning with ethical standards by reducing reliance on animal models, by integrating diverse tissues and dynamic cell environments enhances precision in predicting organ function. Here, we employ a 3-organ-on-a-chip microfluidic device with skin, intestine, and liver cultures to assess the effects of BPA and BPS via topical and oral administration. Our evaluation focused on gene markers associated with carcinogenicity, systemic toxicity, and endocrine disruption. BPA exhibited expected absorption profiles, causing liver injury and genetic modulation in related pathways. BPS, a safer alternative, induced adverse effects on gene expression, particularly in topical absorption, with distinct absorption patterns. Our findings underscore the urgency of addressing BPA and BPS toxicity concerns, highlighting the crucial role of organ-on-a-chip technology in understanding associated health risks. The study promotes the organ-on-a-chip methodology as a valuable tool for safe drug development and disease treatments, offering a novel liver toxicity screening alternative to traditional animal tests. This contributes to advancing comprehension of the biological effects of these compounds, fostering improved safety assessments in human health.
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Indolfo NDC, Ganzerla MD, Doratioto TR, Avelino TM, Tofani LB, Peroni LA, Rabelo RS, Arroteia KF, Figueira ACM. Combining a microphysiological system of three organ equivalents and transcriptomics to assess toxicological endpoints for cosmetic ingredients. LAB ON A CHIP 2023; 23:5092-5106. [PMID: 37921576 DOI: 10.1039/d3lc00546a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Abstract
Animal testing for cosmetic ingredients and final products has been banned in Europe and is gaining legal force worldwide. However, the need for reliable testing methodologies remains for safety assessment of cosmetic ingredients. While new approach methodologies exist for many toxicological endpoints, some complex ones lack appropriate testing methods. Microphysiological systems (MPSs) have emerged as a promising tool to address this gap in pre-clinical testing, offering higher predictivity compared to animal models due to the phylogenetic distance between humans and animals. Moreover, they provide a more physiological approach than traditional in vitro testing by mimicking interconnections between different culture compartments as seen in complex organisms. This study presents a three-organ microfluidic MPS comprising skin, liver, and intestine equivalents. Combining this model with gene expression analysis, we evaluated toxicological endpoints of chemicals, demonstrating its potential for diverse applications. Our findings highlight the MPS model as a reliable and ethical method to be applied in an integrated approach for safety assessment in the cosmetic industry. It offers a promising strategy to evaluate toxicological endpoints for cosmetic ingredients and other chemicals, supporting the elimination of animal testing while ensuring consumer safety.
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Affiliation(s)
- Nathalia de Carvalho Indolfo
- Natura Cosméticos S.A., Cajamar, São Paulo, Brazil
- Graduate Program in Pharmaceutical Sciences, Faculty of Pharmaceutical Sciences, State University of Campinas, Brazil
| | - Melissa Dibbernn Ganzerla
- Graduate Program in Molecular and Morphofunctional Biology, Institute of Biology, State University of Campinas, Brazil
- Brazilian Biosciences National Laboratory (LNBio), Center for Research in Energy and Materials (CNPEM), Campinas, Brazil.
| | | | - Thayná Mendonça Avelino
- Brazilian Biosciences National Laboratory (LNBio), Center for Research in Energy and Materials (CNPEM), Campinas, Brazil.
| | - Larissa Bueno Tofani
- Brazilian Biosciences National Laboratory (LNBio), Center for Research in Energy and Materials (CNPEM), Campinas, Brazil.
| | - Luis Antonio Peroni
- Brazilian Biosciences National Laboratory (LNBio), Center for Research in Energy and Materials (CNPEM), Campinas, Brazil.
| | - Renata Santos Rabelo
- Brazilian Synchrotron Light Laboratory (LNLS), Center for Research in Energy and Materials (CNPEM), Campinas, Brazil
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Ozan G, Cumbul A, Sumer E, Aydin A, Ekinci FY. Safety assessment of European cranberrybush (Viburnum opulus L.) fruit juice: Acute and subacute oral toxicity. Food Chem Toxicol 2023; 181:114082. [PMID: 37783419 DOI: 10.1016/j.fct.2023.114082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 09/13/2023] [Accepted: 09/29/2023] [Indexed: 10/04/2023]
Abstract
European cranberrybush (ECB) (Viburnum opulus L.) fruits are abundant in phenolic compounds associated with various health benefits. However, the toxicity and safety of ECB juice have not been systematically studied. In the present study, acute and subacute oral toxicities of ECB fruit juice were evaluated on Sprague-Dawley rats and BALB/c mice to establish a toxicity profile. In acute tests, a single administration of 2000 mg/kg body weight of extract to rats exhibited no clinical signs of toxicity or mortality, indicating that the lethal dose (LD50) was over 2000 mg/kg. In subacute tests, repeated administration for 28 days at 0 (control), 500, and 2000 mg/kg doses of extract in mice did not display adverse clinical signs or deaths. However, in the 2000 mg/kg subacute group, platelet counts were significantly high, which correlated with histopathological analyses revealing that ECB extract at 2000 mg/kg was toxic to the kidney, liver, and adipose tissue. The NOAEL value of ECB extract was found as 500 mg/kg/day, but further sub-chronic and chronic toxicity studies are warranted to comprehensively evaluate the long-term safety implications. The study's results emphasize the importance of considering the dosage of dietary supplements containing high levels of phenolic compounds over an extended period to avoid potential cumulative effects from prolonged consumption of high doses.
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Affiliation(s)
- Gizem Ozan
- Yeditepe University, Faculty of Engineering, Department of Food Engineering, Istanbul, Turkiye; Yeditepe University, Graduate School of Natural and Applied Sciences, Biotechnology Program, Istanbul, Turkiye
| | - Alev Cumbul
- Yeditepe University, Faculty of Medicine, Department of Histology and Embryology, Istanbul, Turkiye
| | - Engin Sumer
- Yeditepe University, Faculty of Medicine, Experimental Research Center, Istanbul, Turkiye
| | - Ahmet Aydin
- Yeditepe University, Faculty of Pharmacy, Department of Pharmaceutical Toxicology, Istanbul, Turkiye
| | - F Yesim Ekinci
- Yeditepe University, Faculty of Engineering, Department of Food Engineering, Istanbul, Turkiye; Yeditepe University, Graduate School of Natural and Applied Sciences, Biotechnology Program, Istanbul, Turkiye.
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Bhat V, Nayak P, Bakkannavar S, Udupa P. Evaluation of paraoxonase I and hemoglobin levels in farmers and agricultural workers in relation to organophosphorus and carbamate levels in their blood and urine samples: A cross sectional study. F1000Res 2023; 12:Chem Inf Sci-478. [PMID: 38449835 PMCID: PMC10915361 DOI: 10.12688/f1000research.131690.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/27/2023] [Indexed: 03/08/2024] Open
Abstract
Background: Pesticides are chemicals that have become common household products in developing countries. The purpose of pesticides is to manage agricultural work. The majority of pesticides for indoor and agricultural use are carbamate and organophosphorus. Toxicity is caused due to excess and improper use or disposal of these chemical agents. Slow exposure to pesticides causes chronic poisoning whereas rapid exposure causes acute poisoning. The paraoxonase I (PON 1) enzyme has a role in detoxifying some of the oxon derivatives which thereby inhibit acetylcholinesterase and butyrylcholinesterase. Methods: This study analyzed farmers who were exposed intermittently to organophosphorus and carbamates pesticides during farming for more than five years. Serum paraoxonase I was evaluated by colorimetry method, and hemoglobin levels were evaluated using portable Fresenius Kabi haemoglobinometer. Results: The study showed that the pesticides were found in the blood and urine samples of farmers and there was an alteration of paraoxonase I and hemoglobin levels in them due to the exposure of pesticides in large quantities over some time. The present study showed around 81% of the participants who were intermittently exposed to pesticides for more than five years were detected with pesticide toxicity. The paraoxonase I level was altered in farmers who were positive for organophosphorus and carbamate pesticides. The hemoglobin level did not show much variation among the farmers exposed to pesticides. This may be due to the lifestyle of the subjects, climatic variations and also their eating habits. Conclusions: The study suggested that there was alteration in the levels of PON1 and hemoglobin in farmers and agricultural workers with positive organophosphorus and carbamates in their blood and urine samples. As our study was done without quantifying the amount of pesticides, further studies can be done by quantifying the pesticide level and comparing it with the paraoxonase I level.
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Affiliation(s)
- Vinutha Bhat
- Poison Information Center, Department of Forensic Medicine and Toxicology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal, 576104, India
- Biochemistry, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Pragati Nayak
- Biochemistry, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Shankar Bakkannavar
- Poison Information Center, Department of Forensic Medicine and Toxicology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal, 576104, India
- Forensic Medicine and Toxicology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
| | - Padmanabha Udupa
- Poison Information Center, Department of Forensic Medicine and Toxicology, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal, 576104, India
- Biochemistry, Kasturba Medical College, Manipal, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka, 576104, India
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Kulabhusan PK, Ray R, Ramachandra SG, Srinivasulu M, Hariharan A, Balaji K, Mani NK. Coalescing aptamers and liquid-crystals for sensing applications. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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8
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Bommakanti V, Banerjee M, Shah D, Manisha K, Sri K, Banerjee S. An overview of synthesis, characterization, applications and associated adverse effects of bioactive nanoparticles. ENVIRONMENTAL RESEARCH 2022; 214:113919. [PMID: 35863448 DOI: 10.1016/j.envres.2022.113919] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Revised: 07/11/2022] [Accepted: 07/14/2022] [Indexed: 06/15/2023]
Abstract
A particle with a diameter ranging from 1 to 100 nm is considered a nanoparticle (NP). Owing to their small size and high surface area, NPs possess unique physical, chemical and biological properties as compared to their bulkier counterparts. This paper describes various physico-chemical as well as green methods that can be used to synthesize different types of NPs including carbon-based, ceramic, metal, semiconductor, polymeric and lipid-based NPs. These methods can be categorized into either top-down or bottom-up approaches. Electron microscopy, atomic force microscopy, dynamic light scattering, X-ray diffraction, zeta-potential instrument, liquid chromatography-mass spectrometry, fourier transform infrared spectroscopy and thermogravimetric analysis are the techniques discussed in the characterization of NPs. This review provides an insight into the extraordinary properties of NPs that have opened the doors for endless biomedical applications like drug delivery, photo-ablation therapy, biosensors, bio-imaging and hyperthermia. In addition, NPs are also involved in improving crop growth, making protective clothing, cosmetics and energy reserves. This review also specifies adverse health effects associated with NPs such as hepatotoxicity, genotoxicity, neurotoxicity, etc., and inhibitory effects on plant growth and aquatic life. Further, in-vitro toxicity assessment assays for cell proliferation, apoptosis, necrosis and oxidative stress, as well as in-vivo toxicity assessment like biodistribution, clearance, hematological, serological and histological studies, are discussed here. Lastly, the authors have mentioned various measures that can be adopted to minimize the toxicity associated with NPs such as green synthesis, use of stabilizers, gene gun, polymer shell, microneedle capsule, etc.
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Affiliation(s)
- Vaishnavi Bommakanti
- School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Vellore, 632014, Tamil Nadu, India
| | - Madhura Banerjee
- School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Vellore, 632014, Tamil Nadu, India
| | - Divik Shah
- School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Vellore, 632014, Tamil Nadu, India
| | - Kowdi Manisha
- School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Vellore, 632014, Tamil Nadu, India
| | - Kavya Sri
- School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Vellore, 632014, Tamil Nadu, India
| | - Satarupa Banerjee
- School of Bio Sciences and Technology, Vellore Institute of Technology (VIT), Vellore, 632014, Tamil Nadu, India.
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Szudrowicz H, Kamaszewski M, Adamski A, Skrobisz M, Frankowska-Łukawska J, Wójcik M, Bochenek J, Kawalski K, Martynow J, Bujarski P, Pruchniak P, Latoszek E, Bury-Burzymski P, Szczepański A, Jaworski S, Matuszewski A, Herman AP. The Effects of Seven-Day Exposure to Silver Nanoparticles on Fertility and Homeostasis of Zebrafish (Danio rerio). Int J Mol Sci 2022; 23:ijms231911239. [PMID: 36232541 PMCID: PMC9569820 DOI: 10.3390/ijms231911239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/16/2022] [Accepted: 09/20/2022] [Indexed: 11/24/2022] Open
Abstract
Silver nanoparticles (AgNPs) are found in open waters, but the effect of their low concentrations on an organism’s homeostasis is not fully understood. The aim of the study was to determine the short-term exposure effects of AgNPs coated by PvP (polyvinylpyrrolidone) on the homeostasis of livers and gonads in zebrafish. Sexually mature zebrafish were exposed for seven days to silver ions (0.01 mg/dm3) or AgNPs (0.01; 0.05; 0.1; 0.5; 1.0 mg/dm3). On the last day, the liver, testes, and ovaries were subjected to a histology analysis. In the liver, we analyzed the expression of the cat, gpx1a, gsr, sod1, and cyp1a genes. On the last day of the experiment, the lowest survival rate was found in the AgNPs 0.05 mg/dm3 group. The histological analysis showed that AgNPs and silver ions cause an increase in the area of hepatocytes. The highest proliferation index of hepatocytes was found in the AgNP 0.05 mg/dm3 group. Furthermore, AgNPs were found to interfere with spermatogenesis and oogonesis as well as reduce the expression levels of the cat, gpx1a, and sod1 genes in the liver compared with the control group. Based on the results, it can be concluded that exposure to AgNPs causes cytotoxic changes in zebrafish, activates the immune system, negatively affects the process of meiosis in the gonads, and generates oxidative stress.
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Affiliation(s)
- Hubert Szudrowicz
- Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Ciszewskiego 8, 02-786 Warsaw, Poland
| | - Maciej Kamaszewski
- Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Ciszewskiego 8, 02-786 Warsaw, Poland
- Correspondence: ; Tel.: +48-225-936-645
| | - Antoni Adamski
- Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Ciszewskiego 8, 02-786 Warsaw, Poland
| | - Marek Skrobisz
- Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Ciszewskiego 8, 02-786 Warsaw, Poland
| | | | - Maciej Wójcik
- The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka 3, 05-110 Jabłonna, Poland
| | - Joanna Bochenek
- The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka 3, 05-110 Jabłonna, Poland
| | - Kacper Kawalski
- Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Ciszewskiego 8, 02-786 Warsaw, Poland
| | - Jakub Martynow
- Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Ciszewskiego 8, 02-786 Warsaw, Poland
| | - Patryk Bujarski
- Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Ciszewskiego 8, 02-786 Warsaw, Poland
| | - Pola Pruchniak
- Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Ciszewskiego 8, 02-786 Warsaw, Poland
| | - Ewelina Latoszek
- Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Ciszewskiego 8, 02-786 Warsaw, Poland
- International Institute of Molecular and Cell Biology, Księcia Trojdena 4, 02-109 Warsaw, Poland
| | - Paweł Bury-Burzymski
- Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Ciszewskiego 8, 02-786 Warsaw, Poland
| | - Adrian Szczepański
- Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Ciszewskiego 8, 02-786 Warsaw, Poland
| | - Sławomir Jaworski
- Institute of Biology, Warsaw University of Life Sciences, Warsaw, Nowoursynowska 159, 02-776 Warsaw, Poland
| | - Arkadiusz Matuszewski
- Institute of Animal Sciences, Warsaw University of Life Sciences, Warsaw, Ciszewskiego 8, 02-786 Warsaw, Poland
| | - Andrzej Przemysław Herman
- The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, Instytucka 3, 05-110 Jabłonna, Poland
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The Antioxidant Properties of Alfalfa (Medicago sativa L.) and Its Biochemical, Antioxidant, Anti-Inflammatory, and Pathological Effects on Nicotine-Induced Oxidative Stress in the Rat Liver. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:2691577. [PMID: 35378828 PMCID: PMC8976666 DOI: 10.1155/2022/2691577] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Accepted: 03/11/2022] [Indexed: 01/08/2023]
Abstract
Medicago sativa Linn or alfalfa is a tonic plant rich in proteins, vitamins, and minerals that is used to treat many diseases due to its pharmacological properties such as anti-inflammatory and antioxidant activities. So, the aim of this study was to evaluate the efficacy of alfalfa methanolic extract (AME) on the prevention of liver damage caused by nicotine. The total phenols, flavonoids levels, and the free radical scavenging activity of its extract (IC50) were measured. In this study, 30 Wistar rats were randomly divided into 5 groups as control (untreated), N (nicotine only), T1, T2, and T3 (nicotine + AME 100, 250, and 500 mg/kg/day, respectively). AME (orally) and nicotine (intraperitoneal injection, 0.5 mg/kg/day) were then administered for 21 days. Weight gain, the liver-to-body weight ratio, liver functional enzymes, and the lipid profile were measured. Moreover, we evaluated oxidative stress, proinflammatory parameters, and histopathological changes in the liver. Total phenols, flavonoids, and IC50 were determined as
mg GAE/g,
mg QE/g, and
μg/ml, respectively. Nicotine changed the measured parameters to abnormal. AME increased weight gain, the liver-to-body weight ratio, and enzymatic antioxidant levels and decreased malondialdehyde, liver functional enzymes, and proinflammatory cytokine levels. The lipid profile and histopathological changes have also been improved by AME in a dose-dependent manner. The results showed that AME in a dose-dependent manner by improving the inflammation and oxidative damage could improve the liver damage caused by nicotine.
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Nugroho R, Aryani R, Manurung H, Anindita DF, Hidayati FSN, Prahastika W, Rudianto R. Effects of the Ethanol Extracts of Ficus deltoidea leaves on the Reproductive Parameters in Male Mice. Open Access Maced J Med Sci 2022. [DOI: 10.3889/oamjms.2022.8068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND: Indonesia, and in particular East Kalimantan, has a very high diversity of flora that has the potential to be used as traditional medicine. One type of flora is the leaves of Ficus deltoidea Jack. At present, there are no available data about the impact of F. deltoidea leaf ethanol extract on the male reproductive system.
AIM: The present study aims to investigate the effect of F. deltoidea leaf ethanol extract on several parameters of reproductive function in male mice, including changes in testicular biochemistry, reproductive hormones profile, and histopathology of the testes after subchronic exposure.
METHODS: In total, 25 male mice were divided into five groups: The control group and four treatment groups that received extract doses of 125, 250, 500, and 1000 mg/kgbw for 28 days, respectively. At the end of the treatment, surgery was performed, weight of body and reproductive organs (testis, epididymis, and seminal vesicles) were measured, and testicular biochemistry, reproductive hormone profile, antioxidant activity, and testes histopathology were analyzed.
RESULTS: In the subchronic toxicity test, there were no significant changes in body weight or in weight and relative weight of reproductive organs. Levels of testosterone, luteinizing hormone and follicle-stimulating hormone, protein, cholesterol, and activity of enzymes in the testes (alkaline phosphatase, lactate dehydrogenase, and glutamyltransferase) and activity of the enzyme superoxide dismutase increased significantly in the treated mice when compared to control mice (p < 0.05). Glycogen levels were not significantly different, but lipid peroxide (MDA) decreased significantly, though it did not change the histological structure of the testes.
CONCLUSION: Ethanolic extract of the leaves of F. deltoidea Jack does not cause toxic effects and even has a beneficial effect on the reproduction of male mice by increasing fertility, reproductive hormones, and antioxidant activity, and it does not change the histological structure of the testes.
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Kandel Gambarte PC, Wolansky MJ. The gut microbiota as a biomarker for realistic exposures to pesticides: A critical consideration. Neurotoxicol Teratol 2022; 91:107074. [DOI: 10.1016/j.ntt.2022.107074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 12/24/2021] [Accepted: 01/10/2022] [Indexed: 10/19/2022]
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Sakai K, Hiradate Y, Hara K, Tanemura K. Potential of sperm small non-coding RNAs as biomarkers of testicular toxicity in a doxorubicin-induced mouse model. Biochem Biophys Rep 2021; 28:101160. [PMID: 34729424 PMCID: PMC8545667 DOI: 10.1016/j.bbrep.2021.101160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/18/2021] [Accepted: 10/19/2021] [Indexed: 11/28/2022] Open
Abstract
Testicular toxicity is a major concern in cancer chemotherapy and drug development as it can result in infertility; however, there are no effective biomarkers for this adverse effect. To identify new biomarkers, we investigated the expression of small non-coding RNAs (sncRNAs) in a mouse model of doxorubicin (DXR)-induced testicular toxicity. First, we performed small RNA-seq analysis of sperm from DXR-treated or control mice and observed differential expression of many genome-derived sequences. We then performed real-time RT-PCR validation of these sequences and discovered that sncRNA detected by one primers, dxRN_3, showed similar differential expression as that seen in the RNA-seq experiment. These findings suggest that the sncRNAs present in sperm have potential as clinically acceptable biomarkers for testicular toxicity. Testicular toxicity is a major concern in cancer chemotherapy and drug development. There is a lack of effective biomarkers to assess testicular toxicity. Small RNA-seq analysis was performed on sperm from doxorubicin-treated mice. Differential RNA expression analyses identified a small non-coding RNA. Small non-coding RNAs in sperm may be useful biomarkers for testicular toxicity.
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Affiliation(s)
- Kazuya Sakai
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Yuki Hiradate
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Kenshiro Hara
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Kentaro Tanemura
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
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14
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Dhote VV, Raja MKMM, Samundre P, Sharma S, Anwikar S, Upaganlawar AB. Sports Related Brain Injury and Neurodegeneration in Athletes. Curr Mol Pharmacol 2021; 15:51-76. [PMID: 34515018 DOI: 10.2174/1874467214666210910114324] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 03/03/2021] [Accepted: 06/03/2021] [Indexed: 11/22/2022]
Abstract
Sports deserve a special place in human life to impart healthy and refreshing wellbeing. However, sports activities, especially contact sports, renders athlete vulnerable to brain injuries. Athletes participating in a contact sport like boxing, rugby, American football, wrestling, and basketball are exposed to traumatic brain injuries (TBI) or concussions. The acute and chronic nature of these heterogeneous injuries provides a spectrum of dysfunctions that alters the neuronal, musculoskeletal, and behavioral responses of an athlete. Many sports-related brain injuries go unreported, but these head impacts trigger neurometabolic disruptions that contribute to long-term neuronal impairment. The pathophysiology of post-concussion and its underlying mechanisms are undergoing intense research. It also shed light on chronic disorders like Parkinson's disease, Alzheimer's disease, and dementia. In this review, we examined post-concussion neurobehavioral changes, tools for early detection of signs, and their impact on the athlete. Further, we discussed the role of nutritional supplements in ameliorating neuropsychiatric diseases in athletes.
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Affiliation(s)
- Vipin V Dhote
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, MP,462044. India
| | | | - Prem Samundre
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, MP,462044. India
| | - Supriya Sharma
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, MP,462044. India
| | - Shraddha Anwikar
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, MP,462044. India
| | - Aman B Upaganlawar
- Faculty of Pharmacy, VNS Group of Institutions, Bhopal, MP,462044. India
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15
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Buick JK, Williams A, Meier MJ, Swartz CD, Recio L, Gagné R, Ferguson SS, Engelward BP, Yauk CL. A Modern Genotoxicity Testing Paradigm: Integration of the High-Throughput CometChip® and the TGx-DDI Transcriptomic Biomarker in Human HepaRG™ Cell Cultures. Front Public Health 2021; 9:694834. [PMID: 34485225 PMCID: PMC8416458 DOI: 10.3389/fpubh.2021.694834] [Citation(s) in RCA: 151] [Impact Index Per Article: 50.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2021] [Accepted: 07/14/2021] [Indexed: 12/14/2022] Open
Abstract
Higher-throughput, mode-of-action-based assays provide a valuable approach to expedite chemical evaluation for human health risk assessment. In this study, we combined the high-throughput alkaline DNA damage-sensing CometChip® assay with the TGx-DDI transcriptomic biomarker (DDI = DNA damage-inducing) using high-throughput TempO-Seq®, as an integrated genotoxicity testing approach. We used metabolically competent differentiated human HepaRG™ cell cultures to enable the identification of chemicals that require bioactivation to cause genotoxicity. We studied 12 chemicals (nine DDI, three non-DDI) in increasing concentrations to measure and classify chemicals based on their ability to damage DNA. The CometChip® classified 10/12 test chemicals correctly, missing a positive DDI call for aflatoxin B1 and propyl gallate. The poor detection of aflatoxin B1 adducts is consistent with the insensitivity of the standard alkaline comet assay to bulky lesions (a shortcoming that can be overcome by trapping repair intermediates). The TGx-DDI biomarker accurately classified 10/12 agents. TGx-DDI correctly identified aflatoxin B1 as DDI, demonstrating efficacy for combined used of these complementary methodologies. Zidovudine, a known DDI chemical, was misclassified as it inhibits transcription, which prevents measurable changes in gene expression. Eugenol, a non-DDI chemical known to render misleading positive results at high concentrations, was classified as DDI at the highest concentration tested. When combined, the CometChip® assay and the TGx-DDI biomarker were 100% accurate in identifying chemicals that induce DNA damage. Quantitative benchmark concentration (BMC) modeling was applied to evaluate chemical potencies for both assays. The BMCs for the CometChip® assay and the TGx-DDI biomarker were highly concordant (within 4-fold) and resulted in identical potency rankings. These results demonstrate that these two assays can be integrated for efficient identification and potency ranking of DNA damaging agents in HepaRG™ cell cultures.
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Affiliation(s)
- Julie K Buick
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada
| | - Andrew Williams
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada
| | - Matthew J Meier
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada
| | - Carol D Swartz
- Integrated Laboratory Systems Inc. (ILS), Research Triangle Park, Durham, NC, United States
| | - Leslie Recio
- Integrated Laboratory Systems Inc. (ILS), Research Triangle Park, Durham, NC, United States
| | - Rémi Gagné
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada
| | - Stephen S Ferguson
- National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, NC, United States
| | - Bevin P Engelward
- Department of Biological Engineering, Massachusetts Institute of Technology, Cambridge, MA, United States
| | - Carole L Yauk
- Environmental Health Science and Research Bureau, Health Canada, Ottawa, ON, Canada.,Department of Biology, University of Ottawa, Ottawa, ON, Canada
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16
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Daniyan MO, Adeyipo TF, Oyemitan IA, Okwuese PB, Ekundina VO, Akanmu MA. In vivo and in silico studies of Dennettia tripetala essential oil reveal the potential harmful effects of habitual consumption of the plant seed. Toxicol Rep 2021; 8:1488-1497. [PMID: 34401359 PMCID: PMC8353414 DOI: 10.1016/j.toxrep.2021.07.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/20/2021] [Accepted: 07/30/2021] [Indexed: 11/09/2022] Open
Abstract
Dennettia tripetala G. Baker (Annonaceae), is a plant with nutritional, social economy, and medicinal values. Its rising medicinal profile makes this plant a prospect in drug discovery. However, the reported strong addictive potential among habitual consumers makes the need to establish its safety imperative. In this report, we evaluated the safety profile of the essential oil of the seed of D. tripetala (EODS) in nulliparous female Wistar rats using in vivo single and repeated dose toxicity profiling, as well as in silico toxicity profiling of its known seed oil derived phytoconstituents. Our results showed consistent significant dose-dependent alterations in relative body weights, organ-body and organ-brain weight ratios, haematological and biochemical indices, as well as liver and kidney histoarchitectures, following single and repeated oral administrations. Significant alterations in liver and kidney histoarchitectures were consistent with the observed significant increase in AST/ALT ratio, suggesting deleterious effects of EODS on the kidney and liver. However, the lack of alterations in the histoarchitectures of the hippocampus and hypothalamus suggests that the brain may not have been adversely affected. Also, the in silico analysis suggests that hepatotoxic effects of EODS may be linked to Benzylnitrile, Humulene, Linalool, (Z)-ß-Ocimene. In addition, the failure of ß-Phenylnitroethane, the most abundant phytoconstituent of EODS, to pass phases I and II in silico toxicity screening, and the presence of Caryophyllene oxide, a known toxic compound, coupled with the predicted binding of both to DNA and protein, low LD50 and high percent mortality at 250 mg/kg of repeated doses, further confirmed the potentially toxic nature of EODS. We concluded that based on our in vivo and in silico observations, there is an urgent need for public education to regulate the excessive consumption of the seeds of D. tripetala.
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Key Words
- ALT, alanine aminotransferase
- AST, aspartate aminotransferase
- Biochemical
- Dennettia tripetala
- FOB, functional observatory batteries
- HCT, hematocrit
- Haematology
- Hb, hemoglobin concentration
- Histopathology
- In silico
- MCH, mean corpuscular hemoglobin
- MCHC, mean corpuscular hemoglobin concentration
- MCV, mean corpuscular volume
- MPV, mean platelet volume
- OECD, Organization for Economic Co-operation and Development
- PCT, plateletcrit
- PDW, platelet distribution width
- PLT, platelets
- RBC, red blood count
- RDW-CV and RDW-SD, red blood cell distribution width variation coefficient and standard deviation respectively
- TG, test guidelines
- Toxicity
- WBC, white blood count
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Affiliation(s)
| | - Temilade Feyi Adeyipo
- Department of Pharmacology, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Idris Ajayi Oyemitan
- Department of Pharmacology, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Nigeria
| | | | - Victor Olukayode Ekundina
- Department of Medical Laboratory Science, College of Medicine and Health Sciences, Afe Babalola University, Ado-Ekiti, Ekiti State, Nigeria
| | - Moses Atanda Akanmu
- Department of Pharmacology, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Nigeria
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17
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Aulin LB, de Lange DW, Saleh MA, van der Graaf PH, Völler S, van Hasselt JC. Biomarker-Guided Individualization of Antibiotic Therapy. Clin Pharmacol Ther 2021; 110:346-360. [PMID: 33559152 PMCID: PMC8359228 DOI: 10.1002/cpt.2194] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 02/02/2021] [Indexed: 12/11/2022]
Abstract
Treatment failure of antibiotic therapy due to insufficient efficacy or occurrence of toxicity is a major clinical challenge, and is expected to become even more urgent with the global rise of antibiotic resistance. Strategies to optimize treatment in individual patients are therefore of crucial importance. Currently, therapeutic drug monitoring plays an important role in optimizing antibiotic exposure to reduce treatment failure and toxicity. Biomarker-based strategies may be a powerful tool to further quantify and monitor antibiotic treatment response, and reduce variation in treatment response between patients. Host response biomarkers, such as CRP, procalcitonin, IL-6, and presepsin, could potentially carry significant information to be utilized for treatment individualization. To achieve this, the complex interactions among immune system, pathogen, drug, and biomarker need to be better understood and characterized. The purpose of this tutorial is to discuss the use and evidence of currently available biomarker-based approaches to inform antibiotic treatment. To this end, we also included a discussion on how treatment response biomarker data from preclinical, healthy volunteer, and patient-based studies can be further characterized using pharmacometric and system pharmacology based modeling approaches. As an illustrative example of how such modeling strategies can be used, we describe a case study in which we quantitatively characterize procalcitonin dynamics in relation to antibiotic treatments in patients with sepsis.
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Affiliation(s)
- Linda B.S. Aulin
- Division of Systems Biomedicine and PharmacologyLeiden Academic Centre for Drug ResearchLeiden UniversityLeidenThe Netherlands
| | - Dylan W. de Lange
- Department of Intensive Care MedicineUniversity Medical CenterUniversity UtrechtUtrechtThe Netherlands
| | - Mohammed A.A. Saleh
- Division of Systems Biomedicine and PharmacologyLeiden Academic Centre for Drug ResearchLeiden UniversityLeidenThe Netherlands
| | - Piet H. van der Graaf
- Division of Systems Biomedicine and PharmacologyLeiden Academic Centre for Drug ResearchLeiden UniversityLeidenThe Netherlands
- CertaraCanterburyUK
| | - Swantje Völler
- Division of Systems Biomedicine and PharmacologyLeiden Academic Centre for Drug ResearchLeiden UniversityLeidenThe Netherlands
- Pharmacy, Leiden Academic Centre for Drug ResearchLeiden UniversityLeidenThe Netherlands
| | - J.G. Coen van Hasselt
- Division of Systems Biomedicine and PharmacologyLeiden Academic Centre for Drug ResearchLeiden UniversityLeidenThe Netherlands
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18
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Thakur NS, Mandal N, Patel G, Kirar S, Reddy YN, Kushwah V, Jain S, Kalia YN, Bhaumik J, Banerjee UC. Co-administration of zinc phthalocyanine and quercetin via hybrid nanoparticles for augmented photodynamic therapy. NANOMEDICINE : NANOTECHNOLOGY, BIOLOGY, AND MEDICINE 2021; 33:102368. [PMID: 33548477 DOI: 10.1016/j.nano.2021.102368] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 11/29/2020] [Accepted: 01/19/2021] [Indexed: 01/10/2023]
Abstract
The photodynamic anticancer activity of a photosensitizer can be further increased by co-administration of a flavonoid. However, this requires that both molecules must be effectively accumulated at the tumor site. Hence, in order to enhance the activity of zinc phthalocyanine (ZnPc, photosensitizer), it was co-encapsulated with quercetin (QC, flavonoid) in lipid polymer hybrid nanoparticles (LPNs) developed using biodegradable & biocompatible materials and prepared using a single-step nanoprecipitation technique. High stability and cellular uptake, sustained release, inherent fluorescence, of ZnPC were observed after encapsulation in the LPNs, which also showed a higher cytotoxic effect in breast carcinoma cells (MCF-7) compared to photodynamic therapy (PDT) alone. In vivo studies in tumor-bearing Sprague Dawley rats demonstrated that the LPNs were able to deliver ZnPc and QC to the tumor site with minimal systemic toxicity and increased antitumor effect. Overall, the photodynamic effect of ZnPc was synergized by QC. This strategy could be highly beneficial for cancer management in the future while nullifying the side effects of chemotherapy.
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Affiliation(s)
- Neeraj S Thakur
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S. Nagar-160062, Punjab, India; Department of Nanomaterials and Application Technology, Center of Innovative and Applied Bioprocessing (CIAB), Sector 81 (Knowledge City), Mohali-140306, Punjab, India; School of Pharmaceutical Sciences, University of Geneva, CMU - 1 Rue Michel Servet 1206, Geneva, Switzerland
| | - Narattam Mandal
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S. Nagar-160062, Punjab, India
| | - Gopal Patel
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S. Nagar-160062, Punjab, India
| | - Seema Kirar
- Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S. Nagar-160062, Punjab, India
| | - Y Nikhileshwar Reddy
- Department of Nanomaterials and Application Technology, Center of Innovative and Applied Bioprocessing (CIAB), Sector 81 (Knowledge City), Mohali-140306, Punjab, India
| | - Varun Kushwah
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S. Nagar-160062, Punjab, India
| | - Sanyog Jain
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S. Nagar-160062, Punjab, India
| | - Yogeshvar N Kalia
- School of Pharmaceutical Sciences, University of Geneva, CMU - 1 Rue Michel Servet 1206, Geneva, Switzerland
| | - Jayeeta Bhaumik
- School of Pharmaceutical Sciences, University of Geneva, CMU - 1 Rue Michel Servet 1206, Geneva, Switzerland.
| | - Uttam C Banerjee
- Department of Pharmaceutical Technology (Biotechnology), National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S. Nagar-160062, Punjab, India; Department of Biotechnology, National Institute of Pharmaceutical Education and Research (NIPER), Sector-67, S.A.S. Nagar-160062, Punjab, India.
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19
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Lozano-Paniagua D, Parrón T, Alarcón R, Requena M, López-Guarnido O, Lacasaña M, Hernández AF. Evaluation of conventional and non-conventional biomarkers of liver toxicity in greenhouse workers occupationally exposed to pesticides. Food Chem Toxicol 2021; 151:112127. [PMID: 33722595 DOI: 10.1016/j.fct.2021.112127] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 03/01/2021] [Accepted: 03/09/2021] [Indexed: 01/14/2023]
Abstract
The liver plays a prominent role in maintenance of homeostasis and is the major organ for xenobiotic metabolism, including pesticides. Conventional liver function tests are widely used to assess hepatocellular and biliary system dysfunction by measuring serum levels of aminotransferases (ALT, AST) and cholestasis enzymes (alkaline phosphatase -ALP- and γ-glutamyl transferase -GGT-), respectively. Although these tests are not entirely specific for liver damage, their specificity increases when measured concurrently, but still have limited usefulness to predict early liver dysfunction. Hence, non-conventional biomarkers may have a better performance for the early detection of biochemical hepatotoxicity with a greater specificity and sensitivity. A cross-sectional study with a follow-up component was conducted on 175 greenhouse workers regularly exposed to pesticides under integrated production system, and 91 controls living in the same geographical area. All individuals were evaluated for conventional (ALT, AST, ALP, GGT) and non-conventional biomarkers of hepatotoxicity (ornithine transcarbamylase (-OTC-), Arginase-1 -ARG1- and glutathione S-transferase alpha -GSTα-) over two periods of the same crop season, one of high pesticide exposure and other of low exposure. A slight increase in AST was observed in greenhouse workers relative to controls, suggestive of subtle hepatocellular toxicity. Although ALP, ARG1 and GST-α levels were decreased in greenhouse workers, this might be related to a potential homeostatic mechanism that regulates their expression. Altogether, these findings do not represent unambiguous evidence of liver dysfunction (e.g., hepatocellular or biliary system impairment) but may be the result of the low-toxicity pesticides used by greenhouse workers.
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Affiliation(s)
| | - Tesifón Parrón
- University of Almería School of Health Sciences, Almería, Spain
| | - Raquel Alarcón
- University of Almería School of Health Sciences, Almería, Spain
| | - Mar Requena
- University of Almería School of Health Sciences, Almería, Spain
| | - Olga López-Guarnido
- Department of Legal Medicine and Toxicology, University of Granada School of Medicine, Granada, Spain
| | - Marina Lacasaña
- Escuela Andaluza de Salud Pública, Granada, Spain; Centro de Investigación Biomédica en Red de Epidemiología y Salud Pública (CIBERESP), Spain; Instituto de Investigación Biosanitaria, Granada (ibs.GRANADA), Spain
| | - Antonio F Hernández
- Department of Legal Medicine and Toxicology, University of Granada School of Medicine, Granada, Spain; Instituto de Investigación Biosanitaria, Granada (ibs.GRANADA), Spain.
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20
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Guo D, Liu W, Yao T, Ma M, Wang Q, Qiu J, Qian Y. Combined endocrine disruptive toxicity of malathion and cypermethrin to gene transcription and hormones of the HPG axis of male zebrafish (Danio rerio). CHEMOSPHERE 2021; 267:128864. [PMID: 33340882 DOI: 10.1016/j.chemosphere.2020.128864] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/29/2020] [Accepted: 10/31/2020] [Indexed: 06/12/2023]
Abstract
Cypermethrin (CYP) and malathion (MAT) have been widely used and are frequently detected in surface waters. The purpose of the present study was to investigate the endocrine disrupting toxicity of CYP, MAT, and CYP + MAT to 5-month-old male zebrafish (Danio rerio). After exposure, the hepatosomatic index (HSI) and gonadosomatic index (GSI) did not change significantly. Following exposure to the combination of 0.1 μg/L CYP +25 μg/L MAT, the E2 and VTG levels of male zebrafish were significantly increased compared to those after individual pesticide treatments. The molecular level of the hypothalamic-pituitary-gonadal (HPG) axis in zebrafish was studied; it was found that the expression of the estrogen-related genes, especially the vtg1 gene, was significantly altered in 0.1 μg/L CYP + 25 μg/L MAT. Overall, our observation indicated that CYP or MAT could disturb the hormonal balance, and their combination of 0.1 μg/L CYP +25 μg/L MAT could significantly enhance the estrogenic effect.
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Affiliation(s)
- Dongmei Guo
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, China
| | - Wenping Liu
- Crop Germplasm Resources Institute, Jilin Academy of Agricultural Sciences, Changchun, 136100, China
| | - Tingshan Yao
- Citrus Research Institute, Southwest University, Chongqing, 400712, China
| | - Mengmeng Ma
- Key Laboratory of Agro-Product Quality and Safety of Ministry of Agriculture, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China
| | - Qiang Wang
- Institute of Agro-product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, 310021, Zhejiang, China
| | - Jing Qiu
- Key Laboratory of Agro-Product Quality and Safety of Ministry of Agriculture, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
| | - Yongzhong Qian
- Key Laboratory of Agro-Product Quality and Safety of Ministry of Agriculture, Institute of Quality Standards and Testing Technology for Agro-Products, Chinese Academy of Agricultural Sciences, Beijing, 100081, China.
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21
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Mechanism-based identification of plasma metabolites associated with liver toxicity. Toxicology 2020; 441:152493. [DOI: 10.1016/j.tox.2020.152493] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 05/01/2020] [Accepted: 05/08/2020] [Indexed: 12/25/2022]
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22
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Aoki H, Tani H, Nakamura K, Sato H, Torimura M, Nakazato T. MicroRNA biomarkers for chemical hazard screening identified by RNA deep sequencing analysis in mouse embryonic stem cells. Toxicol Appl Pharmacol 2020; 392:114929. [PMID: 32105654 DOI: 10.1016/j.taap.2020.114929] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 02/18/2020] [Accepted: 02/21/2020] [Indexed: 12/19/2022]
Abstract
We investigated the responses of microRNAs (miRNAs) using mouse embryonic stem cells (mESCs) exposed to nine chemicals (bis(2-ethylhexyl)phthalate, p-cresol, p-dichlorobenzene, phenol, pyrocatecol, chloroform, tri-n-butyl phosphate, trichloroethylene, and benzene), which are listed as "Class I Designated Chemical Substances" from the Japan Pollutant Release and Transfer Register. Using deep sequencing analysis (RNA-seq), several miRNAs were identified that show a substantial response to general chemical toxicity (i.e., to these nine chemicals considered as a group) and several miRNA biomarkers that show a substantial and specific response to benzene. The functions of the identified miRNAs were investigated in accordance with Gene Ontology terms of their predicted target genes, indicating regulation of cellular processes. We compared the results with those for the long non-coding RNAs (ncRNAs) and mRNAs reported in our previous studies in addition to previously identified miRNAs that are either up- or down-regulated in response to the benzene as stimuli. We also observed that the changes in expression of miRNAs were smaller than those for long ncRNAs and mRNAs. Taken together the current and previous results revealed that toxic chemical stimuli regulate the expression of miRNAs. We believe that the use of miRNAs, including the thus identified miRNAs, as biomarkers contribute to predicting the potential toxicity of particular chemicals or identifying human individuals that have been exposed to chemical hazards.
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Affiliation(s)
- Hiroshi Aoki
- Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan.
| | - Hidenori Tani
- Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - Kaoru Nakamura
- Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - Hiroaki Sato
- Research Institute of Sustainable Chemistry, National Institute of Advanced Industrial Science and Technology (AIST), 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan
| | - Masaki Torimura
- Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
| | - Tetsuya Nakazato
- Environmental Management Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), 16-1 Onogawa, Tsukuba, Ibaraki 305-8569, Japan
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23
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Buick JK, Williams A, Gagné R, Swartz CD, Recio L, Ferguson SS, Yauk CL. Flow cytometric micronucleus assay and TGx-DDI transcriptomic biomarker analysis of ten genotoxic and non-genotoxic chemicals in human HepaRG™ cells. Genes Environ 2020; 42:5. [PMID: 32042365 PMCID: PMC7001283 DOI: 10.1186/s41021-019-0139-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2019] [Accepted: 11/27/2019] [Indexed: 11/10/2022] Open
Abstract
Background Modern testing paradigms seek to apply human-relevant cell culture models and integrate data from multiple test systems to accurately inform potential hazards and modes of action for chemical toxicology. In genetic toxicology, the use of metabolically competent human hepatocyte cell culture models provides clear advantages over other more commonly used cell lines that require the use of external metabolic activation systems, such as rat liver S9. HepaRG™ cells are metabolically competent cells that express Phase I and II metabolic enzymes and differentiate into mature hepatocyte-like cells, making them ideal for toxicity testing. We assessed the performance of the flow cytometry in vitro micronucleus (MN) test and the TGx-DDI transcriptomic biomarker to detect DNA damage-inducing (DDI) chemicals in human HepaRG™ cells after a 3-day repeat exposure. The biomarker, developed for use in human TK6 cells, is a panel of 64 genes that accurately classifies chemicals as DDI or non-DDI. Herein, the TGx-DDI biomarker was analyzed by Ion AmpliSeq whole transcriptome sequencing to assess its classification accuracy using this more modern gene expression technology as a secondary objective. Methods HepaRG™ cells were exposed to increasing concentrations of 10 test chemicals (six genotoxic chemicals, including one aneugen, and four non-genotoxic chemicals). Cytotoxicity and genotoxicity were measured using the In Vitro MicroFlow® kit, which was run in parallel with the TGx-DDI biomarker. Results A concentration-related decrease in relative survival and a concomitant increase in MN frequency were observed for genotoxic chemicals in HepaRG™ cells. All five DDI and five non-DDI agents were correctly classified (as genotoxic/non-genotoxic and DDI/non-DDI) by pairing the test methods. The aneugenic agent (colchicine) yielded the expected positive result in the MN test and negative (non-DDI) result by TGx-DDI. Conclusions This next generation genotoxicity testing strategy is aligned with the paradigm shift occurring in the field of genetic toxicology. It provides mechanistic insight in a human-relevant cell-model, paired with measurement of a conventional endpoint, to inform the potential for adverse health effects. This work provides support for combining these assays in an integrated test strategy for accurate, higher throughput genetic toxicology testing in this metabolically competent human progenitor cell line.
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Affiliation(s)
- Julie K Buick
- 1Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario K1A 0K9 Canada
| | - Andrew Williams
- 1Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario K1A 0K9 Canada
| | - Rémi Gagné
- 1Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario K1A 0K9 Canada
| | - Carol D Swartz
- 2Integrated Laboratory Systems Inc. (ILS), Research Triangle Park, Durham, North Carolina 27709 USA
| | - Leslie Recio
- 2Integrated Laboratory Systems Inc. (ILS), Research Triangle Park, Durham, North Carolina 27709 USA
| | - Stephen S Ferguson
- 3National Toxicology Program, National Institute of Environmental Health Sciences, Research Triangle Park, Durham, North Carolina 27709 USA
| | - Carole L Yauk
- 1Environmental Health Science and Research Bureau, Health Canada, Ottawa, Ontario K1A 0K9 Canada.,4Health Canada, Environmental Health Centre, 50 Colombine Driveway, PL 0803A, Ottawa, Ontario K1A 0K9 Canada
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Dos Santos Rodrigues B, Lakkadwala S, Kanekiyo T, Singh J. Development and screening of brain-targeted lipid-based nanoparticles with enhanced cell penetration and gene delivery properties. Int J Nanomedicine 2019; 14:6497-6517. [PMID: 31616141 PMCID: PMC6699367 DOI: 10.2147/ijn.s215941] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 07/18/2019] [Indexed: 12/13/2022] Open
Abstract
Background The potential of gene therapy for treatment of neurological disorders can be explored using designed lipid-based nanoparticles such as liposomes, which have demonstrated ability to deliver nucleic acid to brain cells. We synthesized liposomes conjugated to cell-penetrating peptides (CPPs) (vascular endothelial-cadherin-derived peptide [pVec], pentapeptide QLPVM and HIV-1 trans-activating protein [TAT]) and transferrin (Tf) ligand, and examined the influence of surface modifications on the liposome delivery capacity and transfection efficiency of encapsulated plasmid DNA. The design of liposomes was based on targeting molecular recognition of transferrin receptor overexpressed on the blood–brain barrier (BBB) with enhanced internalization ability of CPPs. Methods CPP-Tf-liposomes were characterized by particle size distribution, zeta potential, protection of encapsulated plasmid DNA, uptake mechanisms and transfection efficiencies. An in vitro triple co-culture BBB model selected the liposomal formulations that were able to cross the in vitro BBB and subsequently, transfect primary neuronal cells. The in vivo biodistribution and biocompatibility of selected formulations were also investigated in mice. Results Liposomal formulations were able to protect the encapsulated plasmid DNA against enzymatic degradation and presented low hemolytic potential and low cytotoxicity at 100 nM phospholipid concentration. Cellular internalization of nanoparticles occurred via multiple endocytosis pathways. CPP-Tf-conjugated liposomes mediated robust transfection of brain endothelial (bEnd.3), primary glial and primary neuronal cells. Liposomes modified with Tf and TAT demonstrated superior ability to cross the barrier layer and subsequently, transfect neuronal cells compared to other formulations. Quantification of fluorescently labeled liposomes and in vivo imaging demonstrated that this system could efficiently overcome the BBB and penetrate the brain of mice (7.7% penetration of injected dose). Conclusion In vitro screening platforms are important tools to enhance the success of brain-targeted gene delivery systems. The potential of TAT-Tf-liposomes as efficient brain-targeted gene carriers in vitro and in vivo was suggested to be related to the presence of selected moieties on the nanoparticle surface.
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Affiliation(s)
- Bruna Dos Santos Rodrigues
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, ND 58105, USA
| | - Sushant Lakkadwala
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, ND 58105, USA
| | - Takahisa Kanekiyo
- Department of Neuroscience, Mayo Clinic, Jacksonville, FL 32224, USA
| | - Jagdish Singh
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, ND 58105, USA
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Brovold M, Almeida JI, Pla-Palacín I, Sainz-Arnal P, Sánchez-Romero N, Rivas JJ, Almeida H, Dachary PR, Serrano-Aulló T, Soker S, Baptista PM. Naturally-Derived Biomaterials for Tissue Engineering Applications. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2019; 1077:421-449. [PMID: 30357702 PMCID: PMC7526297 DOI: 10.1007/978-981-13-0947-2_23] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Naturally-derived biomaterials have been used for decades in multiple regenerative medicine applications. From the simplest cell microcarriers made of collagen or alginate, to highly complex decellularized whole-organ scaffolds, these biomaterials represent a class of substances that is usually first in choice at the time of electing a functional and useful biomaterial. Hence, in this chapter we describe the several naturally-derived biomaterials used in tissue engineering applications and their classification, based on composition. We will also describe some of the present uses of the generated tissues like drug discovery, developmental biology, bioprinting and transplantation.
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Affiliation(s)
- Matthew Brovold
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, USA
| | - Joana I Almeida
- Health Research Institute of Aragón (IIS Aragón), Zaragoza, Spain
| | - Iris Pla-Palacín
- Health Research Institute of Aragón (IIS Aragón), Zaragoza, Spain
| | - Pilar Sainz-Arnal
- Health Research Institute of Aragón (IIS Aragón), Zaragoza, Spain
- Aragon Health Sciences Institute (IACS), Zaragoza, Spain
| | | | - Jesus J Rivas
- Health Research Institute of Aragón (IIS Aragón), Zaragoza, Spain
| | - Helen Almeida
- Health Research Institute of Aragón (IIS Aragón), Zaragoza, Spain
| | - Pablo Royo Dachary
- Instituto de Investigación Sanitária de Aragón (IIS Aragón), Zaragoza, Spain
- Liver Transplant Unit, Gastroenterology Department, Lozano Blesa University Hospital, Zaragoza, Spain
| | - Trinidad Serrano-Aulló
- Instituto de Investigación Sanitária de Aragón (IIS Aragón), Zaragoza, Spain
- Liver Transplant Unit, Gastroenterology Department, Lozano Blesa University Hospital, Zaragoza, Spain
| | - Shay Soker
- Wake Forest Institute for Regenerative Medicine, Winston-Salem, NC, USA.
| | - Pedro M Baptista
- Instituto de Investigación Sanitária de Aragón (IIS Aragón), Zaragoza, Spain.
- Center for Biomedical Research Network Liver and Digestive Diseases (CIBERehd), Zaragoza, Spain.
- Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, Spain.
- Biomedical and Aerospace Engineering Department, Universidad Carlos III de Madrid, Madrid, Spain.
- Fundación ARAID, Zaragoza, Spain.
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Njan AA, Olaoye SO, Afolabi SO, Ejimkonye BC, Soje A, Olorundare OE, Iwalewa EO. Safety effect of fractions from methanolic leaf extract of Ocimum gratissimum on reproduction in male wistar rats. Toxicol Rep 2019; 6:496-504. [PMID: 31205861 PMCID: PMC6558029 DOI: 10.1016/j.toxrep.2019.04.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 04/16/2019] [Accepted: 04/28/2019] [Indexed: 11/05/2022] Open
Abstract
This study evaluates the reproductive toxicity of ethyl acetate and butanolic fractions from crude methanolic leaf extract of Ocimum gratissimum in male Wistar rats. Acute toxicity was assessed to determine the safety dose, Sub-chronic reproductive toxicity studies were carried out by administering daily 25, 100 and 400 mg/kg body weight doses of the fractions to respective group of animals and 1 ml of normal saline daily for the control group for 28 days. Blood, epididymis and testes were harvested for reproductive hormones, sperm parameters, and histopathologic analysis respectively. There was significant (P < 0.05) increase in serum levels of testosterone, body-weight gain, sperm count. There was also apparent increase in mean-testicular weight and preservation of testicular histology with increase spermatogenesis in both the ethyl acetate and butanolic fraction treated groups compared with control. Serum levels of luteinising hormone was however significantly (P < 0.05) decrease across the groups compared to control. These effects were more pronounced in the butanolic fraction group compared to the ethyl acetate treated group. Sperm motility was also significantly (P < 0.05) higher in the ethyl acetate treated group compared to control. Findings from this studies demonstrate that these fractions were non-toxic at the tested doses with regards to male reproduction but, rather, exhibited fertility enhancing effects which was better with the butanolic fraction. Our findings also shows that the ethyl acetate fraction may be safer than the butanolic fraction.
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Affiliation(s)
- Anoka A Njan
- University of Ilorin, Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sc, 240003, Ilorin, Nigeria
| | - Solomon O Olaoye
- University of Ilorin, Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sc, 240003, Ilorin, Nigeria
| | - Saheed O Afolabi
- University of Ilorin, Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sc, 240003, Ilorin, Nigeria
| | - Benjamen C Ejimkonye
- University of Ilorin, Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sc, 240003, Ilorin, Nigeria
| | - Anthonia Soje
- University of Ilorin, Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sc, 240003, Ilorin, Nigeria
| | - Olufunke E Olorundare
- University of Ilorin, Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sc, 240003, Ilorin, Nigeria
| | - Ezekiel O Iwalewa
- University of Ilorin, Department of Pharmacology and Therapeutics, Faculty of Basic Medical Sc, 240003, Ilorin, Nigeria
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Olayode OA, Daniyan MO, Olayiwola G. Biochemical, hematological and histopathological evaluation of the toxicity potential of the leaf extract of Stachytarpheta cayennensis in rats. J Tradit Complement Med 2019; 10:544-554. [PMID: 33134130 PMCID: PMC7588336 DOI: 10.1016/j.jtcme.2019.05.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 04/18/2019] [Accepted: 05/13/2019] [Indexed: 12/21/2022] Open
Abstract
Background and Aim The many pharmacological potentials of Stachytarpheta cayennensis (L.C. Rich) Vahl, especially in managing central nervous system disorders, hypertension, diabetes and infections, have made it a subject of abuse, necessitating the need to ascertain its safety. This study therefore investigated the toxic effects of the leaf extract of S. cayennensis in rats following acute and 28-day repeated doses in male and female rats. Experimental procedure Acute and repeated dose studies were conducted in male and female groups of rats (135–150 g), using OECD 423 and 407 Tests guidelines respectively. Functional observational battery, and body weights were monitored. Blood samples were analysed for haematological and plasma biochemical indices. Organs (brain, kidneys and liver) specimen were collected and weighed. Kidney and liver specimen were subjected to histopathological analysis. Results and conclusion The LD50 of the extract was greater than 5000 mg/kg, p.o. (24 h) suggesting that the extract may be non-toxic. However, following single and repeated doses, the results revealed varying degree of significant (p < 0.05) changes in biochemical and heamatological indices, as well as in relative body weight and organ-body and organ-brain weight ratios. Also, histological assessment revealed evidence of liver and kidney toxicities and recovery was incomplete, as signs of toxicities were still evident after 21 days of recovery. Therefore, the extract is potentially harmful to vital organs with evidence of sex differential adverse effects and non-reversible forms of toxicity, especially with repeated usage, necessitating the need to avoid indiscriminate use. The leaf extract of Stachytarpheta cayennensis induced significant changes in rats weights. The extract caused varying significant changes in biochemical and hematological indices. Significant alteration in histoarchitecture of liver and kidney were observed. The observed toxic effects were persistent following period of recovery. The toxic effects are mostly sex dependent.
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Affiliation(s)
- Oladotun A Olayode
- Department of Pharmacology, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
| | - Michael Oluwatoyin Daniyan
- Department of Pharmacology, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
| | - Gbola Olayiwola
- Department of Clinical Pharmacy and Pharmacy Administration, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Osun State, Nigeria
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Allocca M, Mattera L, Bauduin A, Miedziak B, Moros M, De Trizio L, Tino A, Reiss P, Ambrosone A, Tortiglione C. An Integrated Multilevel Analysis Profiling Biosafety and Toxicity Induced by Indium- and Cadmium-Based Quantum Dots in Vivo. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2019; 53:3938-3947. [PMID: 30821457 DOI: 10.1021/acs.est.9b00373] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Indium phosphide quantum dots (QDs) have emerged as a new class of fluorescent nanocrystals for manifold applications, from biophotonics to nanomedicine. Recent efforts in improving the photoluminescence quantum yield, the chemical stability and the biocompatibility turned them into a valid alternative to well established Cd-based nanocrystals. In vitro studies provided first evidence for the lower toxicity of In-based QDs. Nonetheless, an urgent need exists for further assessment of the potential toxic effects in vivo. Here we use the freshwater polyp Hydra vulgaris, a well-established model previously adopted to assess the toxicity of CdSe/CdS nanorods and CdTe QDs. A systematic multilevel analysis was carried out in vivo, ex vivo, and in vitro comparing toxicity end points of CdSe- and InP-based QDs, passivated by ZnSe/ZnS shells and surface functionalized with penicillamine. Final results demonstrate that both the chemical composition of the QD core (InP vs CdSe) and the shell play a crucial role for final outcomes. Remarkably, in absence of in vivo alterations, cell and molecular alterations revealed hidden toxicity aspects, highlighting the biosafety of InP-based nanocrystals and outlining the importance of integrated multilevel analyses for proper QDs risk assessment.
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Affiliation(s)
- Mariateresa Allocca
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello" , Consiglio Nazionale delle Ricerche , Via Campi Flegrei 34 , 80078 Pozzuoli , Italy
| | - Lucia Mattera
- Univ. Grenoble-Alpes, CEA , CNRS, INAC-SyMMES, STEP , 38000 Grenoble , France
| | - Antonella Bauduin
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello" , Consiglio Nazionale delle Ricerche , Via Campi Flegrei 34 , 80078 Pozzuoli , Italy
| | - Beata Miedziak
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello" , Consiglio Nazionale delle Ricerche , Via Campi Flegrei 34 , 80078 Pozzuoli , Italy
| | - Maria Moros
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello" , Consiglio Nazionale delle Ricerche , Via Campi Flegrei 34 , 80078 Pozzuoli , Italy
| | - Luca De Trizio
- Nanochemistry Department , Istituto Italiano di Tecnologia , Via Morego 30 , 16163 Genova , Italy
| | - Angela Tino
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello" , Consiglio Nazionale delle Ricerche , Via Campi Flegrei 34 , 80078 Pozzuoli , Italy
| | - Peter Reiss
- Univ. Grenoble-Alpes, CEA , CNRS, INAC-SyMMES, STEP , 38000 Grenoble , France
| | - Alfredo Ambrosone
- Department of Pharmacy , University of Salerno , Via Giovanni Paolo II 134D , 80084 Fisciano , Italy
| | - Claudia Tortiglione
- Istituto di Scienze Applicate e Sistemi Intelligenti "E. Caianiello" , Consiglio Nazionale delle Ricerche , Via Campi Flegrei 34 , 80078 Pozzuoli , Italy
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Pognan F, Couttet P, Demin I, Jaitner B, Pang Y, Roubenoff R, Sutter E, Timsit Y, Valentin MA, Vogel B, Woerly G, Wolf A, Schramm U. Colony-Stimulating Factor-1 Antibody Lacnotuzumab in a Phase 1 Healthy Volunteer Study and Mechanistic Investigation of Safety Outcomes. J Pharmacol Exp Ther 2019; 369:428-442. [DOI: 10.1124/jpet.118.254128] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 03/18/2019] [Indexed: 01/09/2023] Open
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Abstract
The development of new medicines is one of the priority areas of translational medicine. A significant role for biomarkers (BM) that assess the safety and efficacy of new drugs. The right choice of BM reduces the time and costs necessary for the development of drugs and transfer them to the clinic. The review is devoted to the analysis of modern scientific literature on the role of previously known and newly discovered BM in translational research. Translational BM (TBM) established during preclinical studies and are applicable at all stages of the study. TBM should have a high sensitivity and specificity, be easily measured in real time in an easily accessible biological fluids, to evaluate the same process in different species of animals (including humans), make it possible to compare the results of clinical trials with preclinical. The main role of the TBM toxicity to predict, identify and monitor the toxicity of drugs at all stages of their study. The international consortium (Predictive Safety Testing Consortium, PSTC) whose main task is the qualification of new TBM toxicity and the search for new, more advanced than existing methods for testing markers, was established. Under PSTC formed 6 working groups, each of which coordinates research for the study and selection of TBM toxicity caused by the administration of drugs in the liver, kidney, heart and blood vessels, skeletal muscle, testes. The first qualified consortium markers were 7 contained in the urine markers for preclinical studies on rats with the goal of establishing early lesions in the kidney induced by drugs. Only a small number of BM used in the study of new drugs, can be translational.
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Affiliation(s)
- T. V. Osipova
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia
| | - V. M. Bukhman
- N.N. Blokhin National Medical Research Center of Oncology, Ministry of Health of Russia
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Sakolish C, Weber EJ, Kelly EJ, Himmelfarb J, Mouneimne R, Grimm FA, House JS, Wade T, Han A, Chiu WA, Rusyn I. Technology Transfer of the Microphysiological Systems: A Case Study of the Human Proximal Tubule Tissue Chip. Sci Rep 2018; 8:14882. [PMID: 30291268 PMCID: PMC6173737 DOI: 10.1038/s41598-018-33099-2] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 09/21/2018] [Indexed: 01/08/2023] Open
Abstract
The adoption of a new technology into basic research, and industrial and clinical settings requires rigorous testing to build confidence in the reproducibility, reliability, robustness, and relevance of these models. Tissue chips are promising new technology, they have the potential to serve as a valuable tool in biomedical research, as well as pharmaceutical development with regards to testing for efficacy and safety. The principal goals of this study were to validate a previously established proximal tubule tissue chip model in an independent laboratory and to extend its utility to testing of nephrotoxic compounds. Here, we evaluated critical endpoints from the tissue chip developer laboratory, focusing on biological relevance (long-term viability, baseline protein and gene expression, ammoniagenesis, and vitamin D metabolism), and toxicity biomarkers. Tissue chip experiments were conducted in parallel with traditional 2D culture conditions using two different renal proximal tubule epithelial cell sources. The results of these studies were then compared to the findings reported by the tissue chip developers. While the overall transferability of this advanced tissue chip platform was a success, the reproducibility with the original report was greatly dependent on the cell source. This study demonstrates critical importance of developing microphysiological platforms using renewable cell sources.
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Affiliation(s)
- Courtney Sakolish
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, USA
| | - Elijah J Weber
- Department of Pharmaceutics, University of Washington, Seattle, WA, USA
| | - Edward J Kelly
- Department of Pharmaceutics, University of Washington, Seattle, WA, USA
| | - Jonathan Himmelfarb
- Division of Nephrology, University of Washington Kidney Research Institute, Seattle, WA, USA
| | - Roula Mouneimne
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, USA
| | - Fabian A Grimm
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, USA
| | - John S House
- Bioinformatics Research Center, North Carolina State University, Raleigh, NC, USA
| | - Terry Wade
- Geochemical and Environmental Research Group, Texas A&M University, College Station, TX, USA
| | - Arum Han
- Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX, USA
- Department of Biomedical Engineering, Texas A&M University, College Station, TX, USA
| | - Weihsueh A Chiu
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, USA
| | - Ivan Rusyn
- Department of Veterinary Integrative Biosciences, Texas A&M University, College Station, TX, USA.
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Shin YJ, Kim KA, Kim ES, Kim JH, Kim HS, Ha M, Bae ON. Identification of aldo-keto reductase (AKR7A1) and glutathione S-transferase pi (GSTP1) as novel renal damage biomarkers following exposure to mercury. Hum Exp Toxicol 2018; 37:1025-1036. [PMID: 29298499 DOI: 10.1177/0960327117751234] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2024]
Abstract
The kidney is one of the main targets for toxicity induced by xenobiotics. Sensitive detection of early impairment is critical to assess chemical-associated renal toxicity. The aim of this study was to identify potential nephrotoxic biomarkers in rat kidney tissues after exposure to mercury (Hg), a representative nephrotoxicant, and to evaluate these new biomarkers employing in vivo and in vitro systems. Mercuric chloride was administered orally to Sprague-Dawley rats for 2 weeks. Proteomic analysis revealed that aldo-keto reductase (AKR7A1) and glutathione S-transferase pi (GSTP1) were significantly elevated in kidney after Hg exposure. While the levels of conventional nephrotoxic clinical markers including blood urea nitrogen and serum creatinine were not elevated, the mRNA and protein levels of AKR7A1 and GSTP1 were increased upon Hg exposure in a dose-dependent manner. The increases in AKR7A1 and GSTP1 were also observed in rat kidneys after an extended exposure for 6 weeks to low-dose Hg. In in vitro rat kidney proximal tubular cells, changes in AKR7A1 and GSTP1 levels correlated well with the extent of cytotoxicity induced by Hg, cadmium, or cisplatin. AKR7A1 and GSTP1 were identified as new candidates for Hg-induced nephrotoxicity, suggesting that these biomarkers have potential for evaluating or predicting nephrotoxicity.
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Affiliation(s)
- Y-J Shin
- 1 College of Pharmacy Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Republic of Korea
| | - K-A Kim
- 1 College of Pharmacy Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Republic of Korea
| | - E-S Kim
- 1 College of Pharmacy Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Republic of Korea
| | - J-H Kim
- 1 College of Pharmacy Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Republic of Korea
| | - H-S Kim
- 2 College of Pharmacy, Sungkyunkwan University, Suwon, Republic of Korea
| | - M Ha
- 3 Department of Preventive Medicine, Dankook University College of Medicine, Cheonan, Republic of Korea
| | - O-N Bae
- 1 College of Pharmacy Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, Republic of Korea
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Dos Santos Rodrigues B, Oue H, Banerjee A, Kanekiyo T, Singh J. Dual functionalized liposome-mediated gene delivery across triple co-culture blood brain barrier model and specific in vivo neuronal transfection. J Control Release 2018; 286:264-278. [PMID: 30071253 PMCID: PMC6138570 DOI: 10.1016/j.jconrel.2018.07.043] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2018] [Revised: 07/12/2018] [Accepted: 07/27/2018] [Indexed: 12/19/2022]
Abstract
Gene therapy has become a promising approach for neurodegenerative disease treatment, however there is an urgent need to develop an efficient gene carrier to transport gene across the blood brain barrier (BBB). In this study, we strategically designed dual functionalized liposomes for efficient neuronal transfection by combining transferrin (Tf) receptor targeting and enhanced cell penetration utilizing penetratin (Pen). A triple cell co-culture model of BBB confirmed the ability of the liposomes to cross the barrier layer and transfect primary neuronal cells. In vivo quantification of PenTf-liposomes demonstrated expressive accumulation in the brain (12%), without any detectable cellular damage or morphological change. The efficacy of these nanoparticles containing plasmid β-galactosidase in modulating transfection was assessed by β-galactosidase expression in vivo. As a consequence of accumulation in the brain, PenTf-liposomes significantly induced gene expression in mice. Immunofluorescence studies of brain sections of mice after tail vein injection of liposomes encapsulating pDNA encoding GFP (pGFP) illustrate the superior ability of dual-functionalized liposomes to accumulate in the brain and transfect neurons. Taken together, the multifunctional liposomes provide an excellent gene delivery platform for neurodegenerative diseases.
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Affiliation(s)
- Bruna Dos Santos Rodrigues
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, ND 58105, USA
| | - Hiroshi Oue
- Department of Neuroscience, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
| | - Amrita Banerjee
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, ND 58105, USA
| | - Takahisa Kanekiyo
- Department of Neuroscience, Mayo Clinic, 4500 San Pablo Road, Jacksonville, FL 32224, USA
| | - Jagdish Singh
- Department of Pharmaceutical Sciences, School of Pharmacy, College of Health Professions, North Dakota State University, Fargo, ND 58105, USA.
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Hwang SR, Tham NTT, Lee SH, Bang JH, Yi H, Park YI, Lee HK, Kang HG, Kim YS, Woo GH, Ku HO. Comparison of microRNA expressions for the identification of chemical hazards in in vivo and in vitro hepatic injury models. J Appl Toxicol 2018; 39:333-342. [PMID: 30264499 DOI: 10.1002/jat.3722] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 08/09/2018] [Accepted: 08/09/2018] [Indexed: 12/19/2022]
Abstract
Biofluid-based biomarkers provide an efficient tool for hazard identification of chemicals. Here, we explored the potential of microRNAs (miRNAs) as biomarkers for hepatotoxicity of chemicals by linking in vitro to in vivo animal models. A search of the literature identified candidate circulating miRNA biomarkers of chemical-induced hepatotoxicity. The expression of candidate miRNAs (miR-122, miR-151a, miR-192, miR-193a, miR-194, miR-21, miR-29c), was determined by real-time reverse transcription-polymerase chain reaction in in vivo acute liver injury induced by acetaminophen, and then were further compared with those of in vitro cell assays. Candidate miRNAs, except miR-29c, were significantly or biologically upregulated by acetaminophen, at a dose that caused acute liver injury as confirmed by hepatocellular necrosis. Except miR-122 and miR-193a, other miRNAs elevated in in vivo models were confirmed by in vitro models using HepG2 cells, whereas they failed by in vitro models using human primary hepatocytes. These findings indicate that certain miRNAs may still have the potential of toxicological biomarkers in linking in vitro to in vivo hepatotoxicity.
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Affiliation(s)
- So-Ryeon Hwang
- Toxicological Evaluation Laboratory, Animal and Plant Quarantine Agency, 177, Gimcheon, 39660, Republic of Korea
| | - Nga Thi Thu Tham
- Toxicological Evaluation Laboratory, Animal and Plant Quarantine Agency, 177, Gimcheon, 39660, Republic of Korea
| | - Soo-Ho Lee
- Toxicological Evaluation Laboratory, Animal and Plant Quarantine Agency, 177, Gimcheon, 39660, Republic of Korea
| | - Ji-Hyun Bang
- Toxicological Evaluation Laboratory, Animal and Plant Quarantine Agency, 177, Gimcheon, 39660, Republic of Korea
| | - Hee Yi
- Toxicological Evaluation Laboratory, Animal and Plant Quarantine Agency, 177, Gimcheon, 39660, Republic of Korea
| | - Young-Il Park
- Toxicological Evaluation Laboratory, Animal and Plant Quarantine Agency, 177, Gimcheon, 39660, Republic of Korea
| | - Hyun-Kyoung Lee
- Toxicological Evaluation Laboratory, Animal and Plant Quarantine Agency, 177, Gimcheon, 39660, Republic of Korea
| | - Hwan-Goo Kang
- Toxicological Evaluation Laboratory, Animal and Plant Quarantine Agency, 177, Gimcheon, 39660, Republic of Korea
| | - Yong-Sang Kim
- Toxicological Evaluation Laboratory, Animal and Plant Quarantine Agency, 177, Gimcheon, 39660, Republic of Korea
| | - Gye-Hyeong Woo
- Laboratory of Histopathology, Department of Clinical Laboratory Science, Semyung University, Jecheon, 27136, Republic of Korea
| | - Hyun-Ok Ku
- Toxicological Evaluation Laboratory, Animal and Plant Quarantine Agency, 177, Gimcheon, 39660, Republic of Korea
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Single Oral Acute Toxicity of Banhasasim-Tang and Its Antiobesity Effect on Diet-Induced Obese Mice and 3T3-L1 Adipocytes. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:3865434. [PMID: 30228826 PMCID: PMC6136461 DOI: 10.1155/2018/3865434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Revised: 08/01/2018] [Accepted: 08/07/2018] [Indexed: 12/11/2022]
Abstract
We had tested antiobesity effect of 52 traditional herbal formulas in 3T3-L1 adipocyte, and Banhasasim-tang (BHSST) was chosen as one of the effective medications to inhibit triglyceride accumulation. We investigated the antiobesity effect of BHSST on 3T3-L1 adipocytes and high-fat diet- (HFD-) induced obese mice. In addition, we evaluated the acute toxicity of BHSST in Sprague Dawley (SD) rats. Differentiated 3T3-L1 cells were treated with various concentrations of BHSST for 8 days. Accumulated triglyceride level and the expressions of adipogenesis-related genes and proteins were subsequently investigated. To evaluate the single oral toxicity of BHSST, the SD rats of each sex were administered a single dose (5000 mg/kg) of BHSST via oral gavage; the control group received vehicle only. After a single administration, the mortality, clinical signs, gross findings, and body weight were monitored for 15 days. Male C57BL/6J mice were fed HFD for 4 weeks to induce obesity and randomly received 50 mg/kg of Orlistat (n=12, OR), 200 mg/kg of BHSST (n=12, B200), and 1000 mg/kg of BHSST (n=12, B1000) for another 8 weeks. BHSST suppressed the triglyceride contents and lipid accumulation in a dose-dependent manner in 3T3-L1 adipocytes. BHSST also downregulated the adipogenesis-related gene levels and protein expression compared with those in undifferentiated adipocytes. In a single oral dose toxicity study, there was no adverse effect on mortality, clinical signs, body weight changes, and gross findings in the treatment group. HFD-fed mice treated with BHSST showed significantly reduced body weight gain, food efficiency ratio, and white adipose tissue weight. The medial lethal dose (LD50) of BHSST was 5000 mg/kg/day body weight for each sex in the rats. BHSST decreased the body weight gain in HFD-fed obese mice and inhibited triglyceride accumulation via a cascade of multiple factors at the mRNA and protein levels in 3T3-L1 adipocytes.
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Schumann C, Chan S, Millar JA, Bortnyak Y, Carey K, Fedchyk A, Wong L, Korzun T, Moses AS, Lorenz A, Shea D, Taratula O, Khalimonchuk O, Taratula O. Intraperitoneal nanotherapy for metastatic ovarian cancer based on siRNA-mediated suppression of DJ-1 protein combined with a low dose of cisplatin. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2018; 14:1395-1405. [PMID: 29635082 DOI: 10.1016/j.nano.2018.03.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/12/2018] [Accepted: 03/20/2018] [Indexed: 12/11/2022]
Abstract
Herein, we report an efficient combinatorial therapy for metastatic ovarian cancer based on siRNA-mediated suppression of DJ-1 protein combined with a low dose of cisplatin. DJ-1 protein modulates, either directly or indirectly, different oncogenic pathways that support and promote survival, growth, and invasion of ovarian cancer cells. To evaluate the potential of this novel therapy, we have engineered a cancer-targeted nanoplatform and validated that DJ-1 siRNA delivered by this nanoplatform after intraperitoneal injection efficiently downregulates the DJ-1 protein in metastatic ovarian cancer tumors and ascites. In vivo experiments revealed that DJ-1 siRNA monotherapy outperformed cisplatin alone by inhibiting tumor growth and increasing survival of mice with metastatic ovarian cancer. Finally, three cycles of siRNA-mediated DJ-1 therapy in combination with a low dose of cisplatin completely eradicated ovarian cancer tumors from the mice, and there was no cancer recurrence detected for the duration of the study, which lasted 35 weeks.
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Affiliation(s)
- Canan Schumann
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Stephanie Chan
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Jess A Millar
- Fairborz Maseeh Department of Mathematics and Statistics, Portland State University, OR, USA
| | - Yuliya Bortnyak
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Katherine Carey
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Alex Fedchyk
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Leon Wong
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Tetiana Korzun
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Abraham S Moses
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Anna Lorenz
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Delany Shea
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Olena Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA
| | - Oleh Khalimonchuk
- Department of Biochemistry and Redox Biology Center, University of Nebraska, Lincoln, NE, USA; Fred & Pamela Buffett Cancer Center, Omaha, NE, USA
| | - Oleh Taratula
- Department of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Portland, OR, USA.
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Sakai K, Ideta-Otsuka M, Saito H, Hiradate Y, Hara K, Igarashi K, Tanemura K. Effects of doxorubicin on sperm DNA methylation in mouse models of testicular toxicity. Biochem Biophys Res Commun 2018; 498:674-679. [PMID: 29524425 DOI: 10.1016/j.bbrc.2018.03.044] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Accepted: 03/06/2018] [Indexed: 12/15/2022]
Abstract
Testicular toxicity is a frequent adverse effect of cancer chemotherapy that has no effective clinical biomarker. To find new biomarkers, we focused on epigenetic mechanisms in the male germline. We investigated the DNA methylation status of the male germline during testicular toxicity induced by doxorubicin (DXR), a widely used anticancer agent. We established mouse models of early stage testicular toxicity and testicular pre-toxicity by the administration of 0.2 mg/kg and 0.02 mg/kg DXR, respectively, twice weekly for 5 weeks. Histological analysis showed sparse abnormalities in testicular tissue; however, western blotting analysis revealed reduced testicular expression levels of DNA methyltransferases DNMT3a and DNMT3b in both DXR-treated groups. Interestingly, comprehensive sperm DNA methylation analysis using Methyl-CpG binding domain protein-enriched genome sequencing revealed that hypomethylation was the most frequent change induced by DXR. These findings suggest that sperm DNA methylation status may be used as an early diagnostic marker for testicular changes not detected by conventional toxicity analysis.
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Affiliation(s)
- Kazuya Sakai
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Maky Ideta-Otsuka
- Life Science Tokyo Advanced Research Center (L-StaR), Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo, Japan
| | - Hirokatsu Saito
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Yuki Hiradate
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Kenshiro Hara
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan
| | - Katsuhide Igarashi
- Life Science Tokyo Advanced Research Center (L-StaR), Hoshi University School of Pharmacy and Pharmaceutical Sciences, Tokyo, Japan
| | - Kentaro Tanemura
- Laboratory of Animal Reproduction and Development, Graduate School of Agricultural Science, Tohoku University, Sendai, Miyagi, Japan.
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Bianchi E, Stermer A, Boekelheide K, Sigman M, Hall SJ, Reyes G, Dere E, Hwang K. High-quality human and rat spermatozoal RNA isolation for functional genomic studies. Andrology 2018; 6:374-383. [PMID: 29470852 DOI: 10.1111/andr.12471] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/11/2017] [Accepted: 01/04/2018] [Indexed: 12/30/2022]
Abstract
Sperm RNA is a sensitive monitoring endpoint for male reproductive toxicants, and a potential biomarker to assess male infertility and sperm quality. However, isolation of sperm RNA is a challenging procedure due to the heterogeneous population of cells present in the ejaculate, the low yield of RNA per spermatozoon, and the absence of 18S and 28S ribosomal RNA subunits. The unique biology of spermatozoa has created some uncertainty in the field about RNA isolation methods, indicating the need for rigorous quality control checks to ensure reproducibility of data generated from sperm RNA. Therefore, we developed a reliable and effective protocol for RNA isolation from rat and human spermatozoa that delivers highly purified and intact RNA, verified using RNA-specific electrophoretic chips and molecular biology approaches such as RT-PCR and Western blot analysis. The sperm RNA isolation technique was optimized using rat spermatozoa and then adapted to human spermatozoa. Three steps in the sperm isolation procedure, epididymal fluid collection, sperm purification, and spermatozoon RNA extraction, were evaluated and assessed. The sperm RNA extraction methodology consists of collection of rat epididymal fluid with repeated needle punctures of the epididymis, somatic cell elimination using detergent-based somatic cell lysis buffer (SCLB) and the use of RNA isolation Kit. Rat sperm heads are more resistant to disruption than human spermatozoa, necessitating the addition of mechanical lysis with microbeads and heat in the rat protocol, whereas the human sperm protocol only required lysis buffer. In conclusion, this methodology results in reliable and consistent isolation of high-quality sperm RNA. Using this technique will aid in translation of data collected from animal models, and reproducibility of clinical assessment of male factor fertility using RNA molecular biomarkers.
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Affiliation(s)
- E Bianchi
- Division of Urology, Rhode Island Hospital, Providence, RI, USA.,Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - A Stermer
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - K Boekelheide
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - M Sigman
- Division of Urology, Rhode Island Hospital, Providence, RI, USA.,Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - S J Hall
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - G Reyes
- Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - E Dere
- Division of Urology, Rhode Island Hospital, Providence, RI, USA.,Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
| | - K Hwang
- Division of Urology, Rhode Island Hospital, Providence, RI, USA.,Department of Pathology and Laboratory Medicine, Brown University, Providence, RI, USA
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Landeck L, Kneip C, Reischl J, Asadullah K. Biomarkers and personalized medicine: current status and further perspectives with special focus on dermatology. Exp Dermatol 2018; 25:333-9. [PMID: 27167702 DOI: 10.1111/exd.12948] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2016] [Indexed: 01/02/2023]
Abstract
Biomarkers are of increasingly high importance in medicine, particularly in the realm of 'personalized medicine'. They are valuable for predicting prognosis and dose selection. Moreover, they may be helpful in detecting therapeutic and adverse responses and in patient stratification based on efficacy or safety prediction. Thus, biomarkers are essential tools for the selection of appropriate patients for treatment with certain drugs to and enable personalized medicine, that is 'providing the right treatment to the right patient, at the right dose at the right time'. Currently, there are six drugs approved for dermatological indications with recommended or mandatory biomarker testing. Most of them are used to treat melanoma and human immunodeficiency virus infection. In contrast to the few fully validated biomarkers, many exploratory biomarkers and biomarker candidates have potential applications. Prognostic biomarkers are of particular significance for malignant conditions. Similarly, diagnostic biomarkers are important in autoimmune diseases. Disease severity biomarkers are helpful tools in the treatment for inflammatory skin diseases. Identification, qualification and implementation of the different kinds of biomarkers are challenging and frequently necessitate collaborative efforts. This is particularly true for stratification biomarkers that require a companion diagnostic marker that is co-developed with a certain drug. In this article general definitions and requirements for biomarkers as well as for the impact of biomarkers in dermatology are reviewed and opportunities and challenges are discussed.
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Affiliation(s)
- Lilla Landeck
- Department of Dermatology, Ernst von Bergmann General Hospital Potsdam, Teaching Hospital of Charité, University Medicine Berlin, Berlin, Germany
| | | | - Joachim Reischl
- Bayer Global Drug Discovery, Berlin, Germany.,Astra Zeneca, Personalized Healthcare and Biomarkers, Gothenburg, Sweden
| | - Khusru Asadullah
- Bayer Global Drug Discovery, Berlin, Germany.,Charité, University Medicine Berlin, Berlin, Germany
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40
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Li X, Schumann C, Albarqi HA, Lee CJ, Alani AWG, Bracha S, Milovancev M, Taratula O, Taratula O. A Tumor-Activatable Theranostic Nanomedicine Platform for NIR Fluorescence-Guided Surgery and Combinatorial Phototherapy. Am J Cancer Res 2018; 8:767-784. [PMID: 29344305 PMCID: PMC5771092 DOI: 10.7150/thno.21209] [Citation(s) in RCA: 58] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Accepted: 11/09/2017] [Indexed: 11/06/2022] Open
Abstract
Fluorescence image-guided surgery combined with intraoperative therapeutic modalities has great potential for intraoperative detection of oncologic targets and eradication of unresectable cancer residues. Therefore, we have developed an activatable theranostic nanoplatform that can be used concurrently for two purposes: (1) tumor delineation with real-time near infrared (NIR) fluorescence signal during surgery, and (2) intraoperative targeted treatment to further eliminate unresected disease sites by non-toxic phototherapy. Methods: The developed nanoplatform is based on a single agent, silicon naphthalocyanine (SiNc), encapsulated in biodegradable PEG-PCL (poly (ethylene glycol)-b-poly(ɛ-caprolactone)) nanoparticles. It is engineered to be non-fluorescent initially via dense SiNc packing within the nanoparticle's hydrophobic core, with NIR fluorescence activation after accumulation at the tumor site. The activatable nanoplatform was evaluated in vitro and in two different murine cancer models, including an ovarian intraperitoneal metastasis-mimicking model. Furthermore, fluorescence image-guided surgery mediated by this nanoplatform was performed on the employed animal models using a Fluobeam® 800 imaging system. Finally, the phototherapeutic efficacy of the developed nanoplatform was demonstrated in vivo. Results: Our in vitro data suggest that the intracellular environment of cancer cells is capable of compromising the integrity of self-assembled nanoparticles and thus causes disruption of the tight dye packing inside the hydrophobic cores and activation of the NIR fluorescence. Animal studies demonstrated accumulation of activatable nanoparticles at the tumor site following systemic administration, as well as release and fluorescence recovery of SiNc from the polymeric carrier. It was also validated that the developed nanoparticles are compatible with the intraoperative imaging system Fluobeam® 800, and nanoparticle-mediated image-guided surgery provides successful resection of cancer tumors. Finally, in vivo studies revealed that combinatorial phototherapy mediated by the nanoparticles could efficiently eradicate chemoresistant ovarian cancer tumors. Conclusion: The revealed properties of the activatable nanoplatform make it highly promising for further application in clinical image-guided surgery and combined phototherapy, facilitating a potential translation to clinical studies.
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41
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Schraml E, Hackl M, Grillari J. MicroRNAs and toxicology: A love marriage. Toxicol Rep 2017; 4:634-636. [PMID: 29214146 PMCID: PMC5695539 DOI: 10.1016/j.toxrep.2017.11.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 10/16/2017] [Accepted: 11/10/2017] [Indexed: 12/14/2022] Open
Abstract
Circulating microRNAs can serve as novel toxicological biomarkers. MicroRNAs are non-invasive biomarkers for early detection of tissue injury. MicroRNAs regulate gene activity in tissues exposed to toxic substances. They are novel tools for identifying and monitoring safety risks in drug development. MicroRNA are highly-conserved and potentially useful in preclinical animal studies.
With the dawn of personalized medicine, secreted microRNAs (miRNAs) have come into the very focus of biomarker development for various diseases. MiRNAs fulfil key requirements of diagnostic tools such as i) non or minimally invasive accessibility, ii) robust, standardized and non-expensive quantitative analysis, iii) rapid turnaround of the test result and iv) most importantly because they provide a comprehensive snapshot of the ongoing physiologic processes in cells and tissues that package and release miRNAs into cell-free space. These characteristics have also established circulating miRNAs as promising biomarker candidates for toxicological studies, where they are used as biomarkers of drug-, or chemical-induced tissue injury for safety assessment. The tissue-specificity and early release of circulating miRNAs upon tissue injury, when damage is still reversible, are main factors for their clinical utility in toxicology. Here we summarize in brief, current knowledge of this field.
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Affiliation(s)
| | | | - Johannes Grillari
- TAmiRNA GmbH, Muthgasse 18, 1190, Wien, Austria.,Christian Doppler Labor für Biotechnologie der Hautalterung, Department für Biotechnologie, BOKU Universität für Bodenkultur, Muthgasse 18, 1190, Wien, Austria.,Austrian Cluster for Tissue Regeneration, Austria
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42
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Current practices and future outlook on the integration of biomarkers in the drug development process. Bioanalysis 2017; 9:1827-1837. [PMID: 29120222 DOI: 10.4155/bio-2017-0155] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Over the last decade, there has been broad incorporation of translational biomarkers into the early drug development process to predict safety concerns, measure target engagement and monitor disease progression. One goal of translational biomarkers is to create a cycle whereby preclinical readouts influence candidate selection and subsequent clinical data are fed back into research to facilitate better decision making. Successes have been limited and not as broad in scope as desired. Collaborations between industry and regulators have increased the number of qualified biomarkers; but the process is lengthy and expensive. A high level overview of translational biomarkers as well as a discussion of some of the successes and failures encountered in development is discussed here.
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43
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Mease KM, Kimzey AL, Lansita JA. Biomarkers for nonclinical infusion reactions in marketed biotherapeutics and considerations for study design. CURRENT OPINION IN TOXICOLOGY 2017; 4:1-15. [PMID: 29658009 PMCID: PMC5893855 DOI: 10.1016/j.cotox.2017.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The observation of an infusion reaction (IR) in a nonclinical study can cause concern among investigators and regulators in the development of biotherapeutics. Biomarkers can be informative to determine whether the reactions are immune-mediated or test-article related and if there is a potential risk to human subjects. IRs encompass a broad range of adverse events with a variety of triggers; the focus of this paper is IRs due to cytokine release syndrome or immune complex formation and the associated biomarkers. Such reactions generally do not preclude clinical development or marketing approval, because it is widely accepted that immune-mediated reactions in nonclinical species are not predictive of human outcomes. Several US approved products (from 2004 to 2016) have documented IRs in nonclinical species. This review article discusses recent examples, the biomarkers evaluated, and implications for study design and conduct. Approved biotherapeutics have produced nonclinical infusion reactions (IRs). Nonclinical IRs after a first dose are associated with cytokine release. Nonclinical IRs after several doses are associated with ADA. ADA-mediated IRs may result in immune complex tissue deposition. Diagnosing nonclinical IRs requires a weight-of-evidence approach using biomarkers.
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Affiliation(s)
- Kirsten M Mease
- ToxStrategies, Inc., 92 Cornerstone Drive, PMB 149, Cary, NC 27519, USA
| | - Amy L Kimzey
- ToxStrategies, Inc., PO Box 574, Hudson, MA 01749, USA
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44
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Beger R, Yu LR, Daniels J, Mattes W. Exploratory biomarkers: Analytical approaches and their implications. CURRENT OPINION IN TOXICOLOGY 2017. [DOI: 10.1016/j.cotox.2017.06.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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45
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Qualification of safety biomarkers for use in drug development: What has been achieved and what is the path forward? CURRENT OPINION IN TOXICOLOGY 2017. [DOI: 10.1016/j.cotox.2017.06.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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46
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Current nonclinical testing paradigms in support of safe clinical trials: An IQ Consortium DruSafe perspective. Regul Toxicol Pharmacol 2017; 87 Suppl 3:S1-S15. [PMID: 28483710 DOI: 10.1016/j.yrtph.2017.05.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 05/03/2017] [Accepted: 05/04/2017] [Indexed: 12/18/2022]
Abstract
The transition from nonclinical to First-in-Human (FIH) testing is one of the most challenging steps in drug development. In response to serious outcomes in a recent Phase 1 trial (sponsored by Bial), IQ Consortium/DruSafe member companies reviewed their nonclinical approach to progress small molecules safely to FIH trials. As a common practice, safety evaluation begins with target selection and continues through iterative in silico and in vitro screening to identify molecules with increased probability of acceptable in vivo safety profiles. High attrition routinely occurs during this phase. In vivo exploratory and pivotal FIH-enabling toxicity studies are then conducted to identify molecules with a favorable benefit-risk profile for humans. The recent serious incident has reemphasized the importance of nonclinical testing plans that are customized to the target, the molecule, and the intended clinical plan. Despite the challenges and inherent risks of transitioning from nonclinical to clinical testing, Phase 1 studies have a remarkably good safety record. Given the rapid scientific evolution of safety evaluation, testing paradigms and regulatory guidance must evolve with emerging science. The authors posit that the practices described herein, together with science-based risk assessment and management, support safe FIH trials while advancing development of important new medicines.
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47
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van Iersel MT, Greenberg HE, Westrick ML. Structured Risk Assessment for First-in-Human Studies. Ther Innov Regul Sci 2017; 51:288-297. [PMID: 30231711 DOI: 10.1177/2168479017705156] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
We describe a structured risk assessment and risk mitigation process that is currently used to evaluate proposed first-in human (FiH) studies. This process balances the inherent risks of an FiH study with maximal protection of subjects. Risk assessment should consider all available data, carefully identifying aspects that may lead to risk for healthy subjects. A structured risk assessment avoids omissions and promotes consistency. Such a risk assessment should be performed for Investigational Products as well as for challenge agents and study procedures. Careful risk assessment recognizes gaps of knowledge and emphasizes that FiH studies are tolerability, not toxicity, studies.
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Wang J, Huang W, Thibault S, Brown TP, Bobrowski W, Gukasyan HJ, Evering W, Hu W, John-Baptiste A, Vitsky A. Evaluation of miR-216a and miR-217 as Potential Biomarkers of Acute Exocrine Pancreatic Toxicity in Rats. Toxicol Pathol 2016; 45:321-334. [DOI: 10.1177/0192623316678090] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Detecting and monitoring exocrine pancreatic damage during nonclinical and clinical testing is challenging because classical biomarkers amylase and lipase have limited sensitivity and specificity. Novel biomarkers for drug-induced pancreatic injury are needed to improve safety assessment and reduce late-stage attrition rates. In a series of studies, miR-216a and miR-217 were evaluated as potential biomarkers of acute exocrine pancreatic toxicity in rats. Our results revealed that miR-216a and miR-217 were almost exclusively expressed in rat pancreas and that circulating miR-216a and miR-217 were significantly increased in rats following administration of established exocrine pancreatic toxicants caerulein (CL) and 1-cyano-2-hydroxy-3-butene (CHB) as well as in rats administered a proprietary molecule known to primarily affect the exocrine pancreas. Conversely, neither microRNA was increased in rats administered a proprietary molecule known to cause a lesion at the pancreatic endocrine–exocrine interface (EEI) or in rats administered an established renal toxicant. Compared with amylase and lipase, increases in miR-216a and miR-217 were of greater magnitude, persisted longer, and/or correlated better with microscopic findings within the exocrine pancreas. Our findings demonstrate that in rats, miR-216a and miR-217 are sensitive and specific biomarkers of acute exocrine pancreatic toxicity that may add value to the measurement of classical pancreatic biomarkers.
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Affiliation(s)
- Jianying Wang
- Drug Safety R&D, Pfizer Inc., San Diego, California, USA
| | - Wenhu Huang
- Drug Safety R&D, Pfizer Inc., San Diego, California, USA
| | | | | | | | | | | | - Wenyue Hu
- Drug Safety R&D, Pfizer Inc., San Diego, California, USA
| | | | - Allison Vitsky
- Drug Safety R&D, Pfizer Inc., San Diego, California, USA
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Jakhu R, Mehra R, Mittal HM. Exposure assessment of natural uranium from drinking water. ENVIRONMENTAL SCIENCE. PROCESSES & IMPACTS 2016; 18:1540-1549. [PMID: 27874899 DOI: 10.1039/c6em00514d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The uranium concentration in the drinking water of the residents of the Jaipur and Ajmer districts of Rajasthan has been measured for exposure assessment. The daily intake of uranium from the drinking water for the residents of the study area is found to vary from 0.4 to 123.9 μg per day. For the average uranium ingestion rate of 35.2 μg per day for a long term exposure period of 60 years, estimations have been made for the retention of uranium in different body organs and its excretion with time using ICRP's biokinetic model of uranium. Radioactive and chemical toxicity of uranium has been reported and discussed in detail in the present manuscript.
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Affiliation(s)
- Rajan Jakhu
- Department of Physics, Dr. B R Ambedkar National Institute of Technology, Jalandhar, India.
| | - Rohit Mehra
- Department of Physics, Dr. B R Ambedkar National Institute of Technology, Jalandhar, India.
| | - H M Mittal
- Department of Physics, Dr. B R Ambedkar National Institute of Technology, Jalandhar, India.
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