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Zhang MQ, Wu GZ, Zhang JP, Hu CQ. The comparative analysis of gastrointestinal toxicity of azithromycin and 3'-decladinosyl azithromycin on zebrafish larvae. Toxicol Appl Pharmacol 2023; 469:116529. [PMID: 37100089 DOI: 10.1016/j.taap.2023.116529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2022] [Revised: 04/13/2023] [Accepted: 04/19/2023] [Indexed: 04/28/2023]
Abstract
The most commonly reported side effect of azithromycin is gastrointestinal (GI) disorders, and the main acid degradation product is 3'-Decladinosyl azithromycin (impurity J). We aimed to compare the GI toxicity of azithromycin and impurity J on zebrafish larvae and investigate the mechanism causing the differential GI toxicity. Results of our study showed that the GI toxicity induced by impurity J was higher than that of azithromycin in zebrafish larvae, and the effects of impurity J on transcription in the digestive system of zebrafish larvae were significantly stronger than those of azithromycin. Additionally, impurity J exerts stronger cytotoxic effects on GES-1 cells than azithromycin. Simultaneously, impurity J significantly increased ghsrb levels in the zebrafish intestinal tract and ghsr levels in human GES-1 cells compared to azithromycin, and ghsr overexpression significantly reduced cell viability, indicating that GI toxicity induced by azithromycin and impurity J may be correlated with ghsr overexpression induced by the two compounds. Meanwhile, molecular docking analysis showed that the highest -CDOCKER interaction energy scores with the zebrafish GHSRb or human GHSR protein might reflect the effect of azithromycin and impurity J on the expression of zebrafish ghsrb or human ghsr. Thus, our results suggest that impurity J has higher GI toxicity than azithromycin due to its greater ability to elevate ghsrb expression in zebrafish intestinal tract.
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Affiliation(s)
- Miao-Qing Zhang
- Key Laboratory of Biotechnology of Antibiotics, The National Health Commission (NHC), Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Gui-Zhi Wu
- National Center for ADR Monitoring, Beijing 100022, China
| | - Jing-Pu Zhang
- Key Laboratory of Biotechnology of Antibiotics, The National Health Commission (NHC), Beijing Key Laboratory of Antimicrobial Agents, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Chang-Qin Hu
- National Institutes for Food and Drug Control, Beijing 102629, China.
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Shi J, Li T, Dong J, Wu Y, Wang W, Wang C. Neurotoxicity and Structure-Activity Relationships of Resveratrol and its two Natural Analogs, 4,4′-Dihydroxystilbene and Pinosylvin. Nat Prod Commun 2022. [DOI: 10.1177/1934578x221113707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Resveratrol (RES) and its two natural analogues, 4,4′-dihydroxystilbene (DHS) and pinosylvin (PIN), are very important polyphenols and have attracted considerable pharmaceutical interest because of their diverse biological activities. However, their adverse effects on motor nerves and glioma cells have not been properly assessed. Herein, we surveyed the toxicity and analyzed the structure-activity relationship of these three polyphenols using transgenic zebrafish ( Danio rerio) and U87. Results indicated that, in zebrafish embryos, both DHS (1 and 10 μg/mL) with hydroxyl groups at the 4 and 4′ positions, and PIN (1 and 10 μg/mL) with hydroxyl groups at the 3 and 5 positions inhibited motor neuron growth more effectively than RES (1 and 10 μg/mL) with hydroxyl groups at the 3, 4′, and 5 positions, although their appearance is normal. Both the DHS- (10 μg/mL) and PIN (10 μg/mL) -treated groups significantly reduced the swimming distance of zebrafish compared with the RES (10 μg/mL) -treated group. In addition, DHS with the hydroxyl groups at the 4 and 4′ positions (0.002, 0.02, 0.2, 2, and 20 μM) inhibited U87 cell aggregation in a concentration-dependent manner; PIN with the hydroxyl groups at the 3 and 5 positions (0.002, 0.02, 0.2, 2, and 20 μM) promoted U87 cell aggregation in a concentration-dependent manner, while RES with three hydroxyl groups promoted U87 cell aggregation at concentrations from 0.2 to 2 μM. Taken together, DHS and PIN are more neurotoxic than RES. The position and number of hydroxyl groups significantly affected the ability of the polyphenols to aggregate into tumors in the U87 cell.
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Affiliation(s)
- Jianwu Shi
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, Jiangsu, P.R. China
| | - Tingting Li
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, Jiangsu, P.R. China
| | - Jin Dong
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, Jiangsu, P.R. China
| | - Yuanyuan Wu
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, Jiangsu, P.R. China
| | - Wenran Wang
- Blood Purification Centre, Third People’s Hospital of Rugao, Rugao, Jiangsu, P.R. China
| | - Chengniu Wang
- Institute of Reproductive Medicine, Medical School, Nantong University, Nantong, Jiangsu, P.R. China
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James DM, Davidson EA, Yanes J, Moshiree B, Dallman JE. The Gut-Brain-Microbiome Axis and Its Link to Autism: Emerging Insights and the Potential of Zebrafish Models. Front Cell Dev Biol 2021; 9:662916. [PMID: 33937265 PMCID: PMC8081961 DOI: 10.3389/fcell.2021.662916] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Accepted: 03/15/2021] [Indexed: 12/22/2022] Open
Abstract
Research involving autism spectrum disorder (ASD) most frequently focuses on its key diagnostic criteria: restricted interests and repetitive behaviors, altered sensory perception, and communication impairments. These core criteria, however, are often accompanied by numerous comorbidities, many of which result in severe negative impacts on quality of life, including seizures, epilepsy, sleep disturbance, hypotonia, and GI distress. While ASD is a clinically heterogeneous disorder, gastrointestinal (GI) distress is among the most prevalent co-occurring symptom complex, manifesting in upward of 70% of all individuals with ASD. Consistent with this high prevalence, over a dozen family foundations that represent genetically distinct, molecularly defined forms of ASD have identified GI symptoms as an understudied area with significant negative impacts on quality of life for both individuals and their caregivers. Moreover, GI symptoms are also correlated with more pronounced irritability, social withdrawal, stereotypy, hyperactivity, and sleep disturbances, suggesting that they may exacerbate the defining behavioral symptoms of ASD. Despite these facts (and to the detriment of the community), GI distress remains largely unaddressed by ASD research and is frequently regarded as a symptomatic outcome rather than a potential contributory factor to the behavioral symptoms. Allowing for examination of both ASD's impact on the central nervous system (CNS) as well as its impact on the GI tract and the associated microbiome, the zebrafish has recently emerged as a powerful tool to study ASD. This is in no small part due to the advantages zebrafish present as a model system: their precocious development, their small transparent larval form, and their parallels with humans in genetics and physiology. While ASD research centered on the CNS has leveraged these advantages, there has been a critical lack of GI-centric ASD research in zebrafish models, making a holistic view of the gut-brain-microbiome axis incomplete. Similarly, high-throughput ASD drug screens have recently been developed but primarily focus on CNS and behavioral impacts while potential GI impacts have not been investigated. In this review, we aim to explore the great promise of the zebrafish model for elucidating the roles of the gut-brain-microbiome axis in ASD.
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Affiliation(s)
- David M. James
- Department of Biology, University of Miami, Coral Gables, FL, United States
| | | | - Julio Yanes
- Department of Biology, University of Miami, Coral Gables, FL, United States
| | - Baharak Moshiree
- Department of Gastroenterology and Hepatology, Atrium Health, Charlotte, NC, United States
| | - Julia E. Dallman
- Department of Biology, University of Miami, Coral Gables, FL, United States
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Wang C, Hui J, Zhu X, Cui S, Cui Z, Xu D. Lobetyolin Efficiently Promotes Angiogenesis and Neuronal Development in Transgenic Zebrafish. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20937174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Studies have shown that lobetyolin (LBT), a component of traditional Chinese herbal medicine, has many very good biological activities and functions. However, its side effects and toxicities have not been evaluated adequately. In this work, we investigated the effects of LBT in transgenic zebrafish. LBT treatments promoted angiogenesis and led to vascular morphological malformation in zebrafish embryos, although they were normal in appearance. Interestingly, our results indicated that LBT has a function of promoting nerve growth in the embryonic stage of zebrafish. We also treated the zebrafish with combretastatin A-4 (which resulted in neuronal apoptosis) and LBT simultaneously and found that LBT promoted nerve growth at higher concentrations. Taken together, our findings clearly display that LBT efficiently promotes angiogenesis, leading to vascular morphological malformation, has low toxicity, and notably promotes neuronal development in zebrafish.
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Affiliation(s)
- Chengniu Wang
- Basic Medical Research Centre, Medical College, Nantong University, Jiangsu, P.R. China
| | - Jie Hui
- Lianyungang Higher Vocational Technical College of Traditional Chinese Medicine, Jiangsu, P.R. China
| | - Xinhui Zhu
- Department of Orthopaedics, Affiliated Hospital 2 of Nantong University, Jiangsu, P.R. China
| | - Shengyu Cui
- Department of Orthopaedics, Affiliated Hospital 2 of Nantong University, Jiangsu, P.R. China
| | - Zhiming Cui
- Department of Orthopaedics, Affiliated Hospital 2 of Nantong University, Jiangsu, P.R. China
| | - Dawei Xu
- Department of Orthopaedics, Affiliated Hospital 2 of Nantong University, Jiangsu, P.R. China
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Liu GY, Tan L, Cheng L, Ding LS, Zhou Y, Deng Y, He YQ, Guo DL, Xiao SJ. Dendrobine-type alkaloids and bibenzyl derivatives from Dendrobium findlayanum. Fitoterapia 2020; 142:104497. [DOI: 10.1016/j.fitote.2020.104497] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 02/06/2020] [Accepted: 02/07/2020] [Indexed: 01/26/2023]
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Cassar S, Adatto I, Freeman JL, Gamse JT, Iturria I, Lawrence C, Muriana A, Peterson RT, Van Cruchten S, Zon LI. Use of Zebrafish in Drug Discovery Toxicology. Chem Res Toxicol 2019; 33:95-118. [PMID: 31625720 DOI: 10.1021/acs.chemrestox.9b00335] [Citation(s) in RCA: 272] [Impact Index Per Article: 54.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Unpredicted human safety events in clinical trials for new drugs are costly in terms of human health and money. The drug discovery industry attempts to minimize those events with diligent preclinical safety testing. Current standard practices are good at preventing toxic compounds from being tested in the clinic; however, false negative preclinical toxicity results are still a reality. Continual improvement must be pursued in the preclinical realm. Higher-quality therapies can be brought forward with more information about potential toxicities and associated mechanisms. The zebrafish model is a bridge between in vitro assays and mammalian in vivo studies. This model is powerful in its breadth of application and tractability for research. In the past two decades, our understanding of disease biology and drug toxicity has grown significantly owing to thousands of studies on this tiny vertebrate. This Review summarizes challenges and strengths of the model, discusses the 3Rs value that it can deliver, highlights translatable and untranslatable biology, and brings together reports from recent studies with zebrafish focusing on new drug discovery toxicology.
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Affiliation(s)
- Steven Cassar
- Preclinical Safety , AbbVie , North Chicago , Illinois 60064 , United States
| | - Isaac Adatto
- Stem Cell and Regenerative Biology , Harvard University , Cambridge , Massachusetts 02138 , United States
| | - Jennifer L Freeman
- School of Health Sciences , Purdue University , West Lafayette , Indiana 47907 , United States
| | - Joshua T Gamse
- Drug Safety Evaluation , Bristol-Myers Squibb , New Brunswick , New Jersey 08901 , United States
| | | | - Christian Lawrence
- Aquatic Resources Program , Boston Children's Hospital , Boston , Massachusetts 02115 , United States
| | | | - Randall T Peterson
- Pharmacology and Toxicology, College of Pharmacy , University of Utah , Salt Lake City , Utah 84112 , United States
| | | | - Leonard I Zon
- Stem Cell Program and Division of Hematology/Oncology, Children's Hospital and Dana Farber Cancer Institute, Howard Hughes Medical Institute, Harvard Medical School, Harvard Stem Cell Institute, Stem Cell and Regenerative Biology Department , Harvard University , Boston , Massachusetts 02138 , United States
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Thiodiketopiperazines Produced by Penicillium crustosum and Their Activities to Promote Gastrointestinal Motility. Molecules 2019; 24:molecules24020299. [PMID: 30650614 PMCID: PMC6359346 DOI: 10.3390/molecules24020299] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2018] [Revised: 01/12/2019] [Accepted: 01/14/2019] [Indexed: 12/03/2022] Open
Abstract
Three new thiodiketopiperazines (1–3), along with two known analogues (4 and 5), were isolated from the fermentation broth of Penicillium crustosum. Their structures were elucidated through extensive spectroscopic analysis and the absolute configurations of new compounds were determined by Mosher ester analysis and calculated ECD spectra. Compound 4 and 5 have the activity to promote the gastrointestinal motility of zebrafish via acting on the cholinergic nervous system.
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Cassar S, Huang X, Cole T. High-throughput Measurement of Gut Transit Time Using Larval Zebrafish. J Vis Exp 2018. [PMID: 30417875 PMCID: PMC6235591 DOI: 10.3791/58497] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
Zebrafish are used as alternative model organisms for drug safety testing. The gastrointestinal (GI) tract of zebrafish has genetic, neuronal, and pharmacological similarities to that of the mammals. GI intolerance during clinical testing of drug candidates is common and may pose a serious threat to human health. Testing for GI toxicity in preclinical mammalian models can be expensive in terms of time, test compound, and labor. The high-throughput method presented here may be used to predict GI safety issues. Compared to mammalian models, this method allows for more expedient assessment of test compound effects on GI transit while using low quantities of compound. In this method, larval zebrafish (7 days post fertilization) are fed food containing a fluorescent label. After feeding, each larval fish is placed into a well of a 96-conical-bottom-well plate and dosed with test compound (dissolved in water) or the vehicle. As gut transit occurs, fecal matter accumulates on the bottom of the wells, and the rate at which this happens is monitored by measuring fluorescence from the bottom of the well repeatedly over time using a plate spectrophotometer. The fluorescence from larvae in a given treatment group are averaged and these values are graphed along with standard error, for each measurement time, yielding a curve representing average transit of food over time. Effects on gut transit time are identified by comparing the area under the curve for each treatment group to that of the vehicle-treated group. This method detected changes in zebrafish GI transit time induced by drugs with known clinical GI effects; it can be employed to interrogate dozens of treatments for GI effects per day. As such, safer compounds can be quickly prioritized for mammalian testing, which expedites discovery and proffers 3Rs advancement.
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Affiliation(s)
| | | | - Todd Cole
- Integrated Science and Technology, AbbVie
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Allen JR, Bhattacharyya KD, Asante E, Almadi B, Schafer K, Davis J, Cox J, Voigt M, Viator JA, Chandrasekhar A. Role of branchiomotor neurons in controlling food intake of zebrafish larvae. J Neurogenet 2017; 31:128-137. [PMID: 28812416 PMCID: PMC5942883 DOI: 10.1080/01677063.2017.1358270] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 07/18/2017] [Indexed: 10/19/2022]
Abstract
The physical act of eating or feeding involves the coordinated action of several organs like eyes and jaws, and associated neural networks. Moreover, the activity of the neural networks controlling jaw movements (branchiomotor circuits) is regulated by the visual, olfactory, gustatory and hypothalamic systems, which are largely well characterized at the physiological level. By contrast, the behavioral output of the branchiomotor circuits and the functional consequences of disruption of these circuits by abnormal neural development are poorly understood. To begin to address these questions, we sought to evaluate the feeding ability of zebrafish larvae, a direct output of the branchiomotor circuits, and developed a qualitative assay for measuring food intake in zebrafish larvae at 7 days post-fertilization. We validated the assay by examining the effects of ablating the branchiomotor neurons. Metronidazole-mediated ablation of nitroreductase-expressing branchiomotor neurons resulted in a predictable reduction in food intake without significantly affecting swimming ability, indicating that the assay is robust. Laser-mediated ablation of trigeminal motor neurons resulted in a significant decrease in food intake, indicating that the assay is sensitive. Importantly, in larvae of a genetic mutant with severe loss of branchiomotor neurons, food intake was abolished. These studies establish a foundation for dissecting the neural circuits driving a motor behavior essential for survival.
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Affiliation(s)
- James R. Allen
- Division of Biological Sciences, and Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Kiran D. Bhattacharyya
- Department of Biological Engineering, and Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Emilia Asante
- Division of Biological Sciences, and Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Badr Almadi
- Division of Biological Sciences, and Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Kyle Schafer
- Division of Biological Sciences, and Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Jeremy Davis
- Division of Biological Sciences, and Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
| | - Jane Cox
- Department of Pharmacology and Physiology, St. Louis University School of Medicine, St. Louis, MO 63104, USA
| | - Mark Voigt
- Department of Pharmacology and Physiology, St. Louis University School of Medicine, St. Louis, MO 63104, USA
| | - John A. Viator
- Department of Biological Engineering, and Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
- Biomedical Engineering Program, Duquesne University, Pittsburgh, PA 15282, USA
| | - Anand Chandrasekhar
- Division of Biological Sciences, and Bond Life Sciences Center, University of Missouri, Columbia, MO 65211, USA
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Brady C, Denora M, Shannon I, Clark KJ, Rich A. Intestinal Transit Time and Cortisol-Mediated Stress in Zebrafish. Zebrafish 2017; 14:404-410. [PMID: 28727940 DOI: 10.1089/zeb.2017.1440] [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: 12/30/2022] Open
Abstract
Intestinal motility, the spontaneous and rhythmic smooth muscle contraction, is a complex process that is regulated by overlapping and redundant regulatory mechanisms. Primary regulators intrinsic to the gastrointestinal tract include interstitial cells of Cajal, enteric neurons, and smooth muscle cells. Extrinsic primary regulators include the autonomic nervous system, immune system, and the endocrine system. Due to this complexity, a reductionist approach may be inappropriate if the ultimate goal is to understand motility regulation in vivo. Motility can be directly visualized in intact zebrafish, with intact regulatory systems, because larvae are transparent. Intestinal motility can therefore be measured in a complete system. However, the intestinal tract may respond to external influences, such as handling, which may invoke a stress response and influence intestinal transit. We used SR4G transgenic zebrafish, which express green fluorescent protein following activation of glucocorticoid receptors, and showed that handling required for the intestinal motility assay induces stress. Separate experiments showed that exogenous application of hydrocortisone did not influence intestinal transit, suggesting that handling may not interfere with transit measurements in intact zebrafish larvae. These experiments contribute to further development of the zebrafish model for intestinal motility research.
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Affiliation(s)
- Clayton Brady
- 1 Department of Biology, SUNY Brockport , Brockport, New York
| | - Maxwell Denora
- 1 Department of Biology, SUNY Brockport , Brockport, New York
| | - Ian Shannon
- 1 Department of Biology, SUNY Brockport , Brockport, New York
| | - Karl J Clark
- 2 Department of Biochemistry and Molecular Biology, Mayo Clinic , Rochester, Minnesota
| | - Adam Rich
- 1 Department of Biology, SUNY Brockport , Brockport, New York
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Abstract
Attrition due to nonclinical safety represents a major issue for the productivity of pharmaceutical research and development (R&D) organizations, especially during the compound optimization stages of drug discovery and the early stages of clinical development. Focusing on decreasing nonclinical safety-related attrition is not a new concept, and various approaches have been experimented with over the last two decades. Front-loading testing funnels in Discovery with in vitro toxicity assays designed to rapidly identify unfavorable molecules was the approach adopted by most pharmaceutical R&D organizations a few years ago. However, this approach has also a non-negligible opportunity cost. Hence, significant refinements to the "fail early, fail often" paradigm have been proposed recently to reflect the complexity of accurately categorizing compounds with early data points without taking into account other important contextual aspects, in particular efficacious systemic and tissue exposures. This review provides an overview of toxicology approaches and models that can be used in pharmaceutical Discovery at the series/lead identification and lead optimization stages to guide and inform chemistry efforts, as well as a personal view on how to best use them to meet nonclinical safety-related attrition objectives consistent with a sustainable pharmaceutical R&D model. The scope of this review is limited to small molecules, as large molecules are associated with challenges that are quite different. Finally, a perspective on how several emerging technologies may impact toxicity evaluation is also provided.
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Affiliation(s)
- Eric A G Blomme
- Global Preclinical Safety, AbbVie Inc. , 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Yvonne Will
- Drug Safety Research and Development, Pfizer , Eastern Point Road, Groton, Connecticut 06340, United States
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