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Ferreira T, Azevedo T, Silva J, Faustino-Rocha AI, Oliveira PA. Current views on in vivo models for breast cancer research and related drug development. Expert Opin Drug Discov 2024; 19:189-207. [PMID: 38095187 DOI: 10.1080/17460441.2023.2293152] [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: 07/10/2023] [Accepted: 12/06/2023] [Indexed: 02/03/2024]
Abstract
INTRODUCTION Animal models play a crucial role in breast cancer research, in particular mice and rats, who develop mammary tumors that closely resemble their human counterparts. These models allow the study of mechanisms behind breast carcinogenesis, as well as the efficacy and safety of new, and potentially more effective and advantageous therapeutic approaches. Understanding the advantages and disadvantages of each model is crucial to select the most appropriate one for the research purpose. AREA COVERED This review provides a concise overview of the animal models available for breast cancer research, discussing the advantages and disadvantages of each one for searching new and more effective approaches to treatments for this type of cancer. EXPERT OPINION Rodent models provide valuable information on the genetic alterations of the disease, the tumor microenvironment, and allow the evaluation of the efficacy of chemotherapeutic agents. However, in vivo models have limitations, and one of them is the fact that they do not fully mimic human diseases. Choosing the most suitable model for the study purpose is crucial for the development of new therapeutic agents that provide better care for breast cancer patients.
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Affiliation(s)
- Tiago Ferreira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Tiago Azevedo
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Jessica Silva
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Ana I Faustino-Rocha
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Department of Zootechnics, School of Sciences and Technology, University of Évora, Évora, Portugal
- Department of Zootechnics, School of Sciences and Technology, Comprehensive Health Research Center, Évora, Portugal
| | - Paula A Oliveira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Institute for Innovation, Capacity Building and Sustainability of Agri-Food Production (Inov4Agro), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Clinical Academic Center of Trás-Os-Montes and Alto Douro, University of Trás-Os-Montes and Alto Douro, Vila Real, Portugal
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Zheng Q, Nayga RM, Yang W, Tokunaga K. Do U.S. consumers value genetically modified farmed salmon? Food Qual Prefer 2023. [DOI: 10.1016/j.foodqual.2023.104841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
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Identification of Fish Species and Targeted Genetic Modifications Based on DNA Analysis: State of the Art. Foods 2023; 12:foods12010228. [PMID: 36613444 PMCID: PMC9818732 DOI: 10.3390/foods12010228] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 12/22/2022] [Accepted: 12/30/2022] [Indexed: 01/05/2023] Open
Abstract
Food adulteration is one of the most serious problems regarding food safety and quality worldwide. Besides misleading consumers, it poses a considerable health risk associated with the potential non-labeled allergen content. Fish and fish products are one of the most expensive and widely traded commodities, which predisposes them to being adulterated. Among all fraud types, replacing high-quality or rare fish with a less valuable species predominates. Because fish differ in their allergen content, specifically the main one, parvalbumin, their replacement can endanger consumers. This underlines the need for reliable, robust control systems for fish species identification. Various methods may be used for the aforementioned purpose. DNA-based methods are favored due to the characteristics of the target molecule, DNA, which is heat resistant, and the fact that through its sequencing, several other traits, including the recognition of genetic modifications, can be determined. Thus, they are considered to be powerful tools for identifying cases of food fraud. In this review, the major DNA-based methods applicable for fish meat and product authentication and their commercial applications are discussed, the possibilities of detecting genetic modifications in fish are evaluated, and future trends are highlighted, emphasizing the need for comprehensive and regularly updated online database resources.
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RRI and Corporate Stakeholder Engagement: The Aquadvantage Salmon Case. SUSTAINABILITY 2021. [DOI: 10.3390/su13041820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Declining public trust in science and innovation triggered the emergence and development of the responsible research and innovation (RRI) concept among policymakers and academics. Engaging stakeholders in the early phases of innovation processes has been identified as a major driver of inclusive, responsible, and sustainable development. Firms however have often adopted practices entirely opposite to those being advocated within the RRI framework, namely, reducing external interaction with stakeholders, focusing on exclusive communication with the scientific community and legal authorities while avoiding the social spotlight. We illustrate these practices, their causes and consequences using the case of the Aquadvantage salmon, the first genetically modified (GM) animal approved to petition for the United States (US) Food and Drug Administration (FDA) approval for human consumption. We find that such practices heighten the risk of social backlash, being undesirable from the perspective of both the organizations involved and society at large. Stakeholder engagement remains necessary in order to gain the minimum social acceptance required for contentious innovative products to enter the market. However, stakeholder engagement must be selective, focused on pragmatic organizations whose aims and interests are sufficiently broad to potentially align with corporate interests. Strategic stakeholder engagement offers a meeting point between the transformative aspirations of RRI framework proponents and legitimate business interests.
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Green AG, Abdulai AR, Duncan E, Glaros A, Campbell M, Newell R, Quarshie P, KC KB, Newman L, Nost E, Fraser EDG. A scoping review of the digital agricultural revolution and ecosystem services: implications for Canadian policy and research agendas. Facets (Ott) 2021. [DOI: 10.1139/facets-2021-0017] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
The application of technologies such as artificial intelligence, robotics, blockchain, cellular agriculture, and big data analytics to food systems has been described as a digital agricultural revolution with the potential to increase food security and reduce agriculture’s environmental footprint. Yet, the scientific evidence informing how these technologies may impact or enhance ecosystem services has not been comprehensively reviewed. In this scoping review, we examine how digital agricultural technologies may enhance agriculture’s support of ecosystem services. Keyword searches in academic databases resulted in 2337 records, of which 74 records met review criteria and were coded. We identify three clusters of digital agricultural technologies including those that make farm management more precise, increase connectivity, and create novel foods. We then examine modelling and empirical evidence gaps in research linking these technologies to ecosystem services. Finally, we overview barriers to implementing digital agricultural technologies for better ecosystem services management in the Canadian context including economic and political systems; lack of policies on data management, governance, and cybersecurity; and limited training and human resources that prevents producers from fully utilizing these technologies.
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Affiliation(s)
- Arthur G. Green
- Department of Geography, Earth, and Environmental Sciences, Okanagan College, 1000 K.L.O Rd., Kelowna, BC V1Y 4X8, Canada
| | - Abdul-Rahim Abdulai
- Department of Geography, Environment and Geomatics, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Emily Duncan
- Department of Geography, Environment and Geomatics, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Alesandros Glaros
- Department of Geography, Environment and Geomatics, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Malcolm Campbell
- Office of the Vice-President, University of Guelph, University Centre Room 416, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Rob Newell
- Food and Agriculture Institute, University of the Fraser Valley, 33844 King Road, Abbotsford, BC V2S 7M8, Canada
| | - Philip Quarshie
- Department of Geography, Environment and Geomatics, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Krishna Bahadur KC
- Department of Geography, Environment and Geomatics, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Lenore Newman
- Food and Agriculture Institute, University of the Fraser Valley, 33844 King Road, Abbotsford, BC V2S 7M8, Canada
| | - Eric Nost
- Department of Geography, Environment and Geomatics, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
| | - Evan D. G. Fraser
- Department of Geography, Environment and Geomatics, University of Guelph, 50 Stone Road East, Guelph, ON N1G 2W1, Canada
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Kirubakaran R, ArulJothi KN, Revathi S, Shameem N, Parray JA. Emerging priorities for microbial metagenome research. BIORESOURCE TECHNOLOGY REPORTS 2020; 11:100485. [PMID: 32835181 PMCID: PMC7319936 DOI: 10.1016/j.biteb.2020.100485] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/23/2020] [Accepted: 06/24/2020] [Indexed: 12/20/2022]
Abstract
Overwhelming anthropogenic activities lead to deterioration of natural resources and the environment. The microorganisms are considered desirable, due to their suitability for easy genetic manipulation and handling. With the aid of modern biotechnological techniques, the culturable microorganisms have been widely exploited for the benefit of mankind. Metagenomics, a powerful tool to access the abundant biodiversity of the environmental samples including the unculturable microbes, to determine microbial diversity and population structure, their ecological roles and expose novel genes of interest. This review focuses on the microbial adaptations to the adverse environmental conditions, metagenomic techniques employed towards microbial biotechnology. Metagenomic approach helps to understand microbial ecology and to identify useful microbial derivatives like antibiotics, toxins, and enzymes with diverse and enhanced function. It also summarizes the application of metagenomics in clinical diagnosis, improving microbial ecology, therapeutics, xenobiotic degradation and impact on agricultural crops.
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Affiliation(s)
| | - K N ArulJothi
- Department of Genetic Engineering, SRM Institute of Science and Technology, Chennai, India
- Department of Human Biology, University of Cape Town, Cape Town, South Africa
| | | | - Nowsheen Shameem
- Department of Environmental Science, Cluster University Srinagar, J&K, India
| | - Javid A Parray
- Department of Environmental Science, Govt SAM Degree College Budgam, J&K, India
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Abstract
Breast cancer is one of the most common cancers worldwide, which makes it a very impactful malignancy in the society. Breast cancers can be classified through different systems based on the main tumor features and gene, protein, and cell receptors expression, which will determine the most advisable therapeutic course and expected outcomes. Multiple therapeutic options have already been proposed and implemented for breast cancer treatment. Nonetheless, their use and efficacy still greatly depend on the tumor classification, and treatments are commonly associated with invasiveness, pain, discomfort, severe side effects, and poor specificity. This has demanded an investment in the research of the mechanisms behind the disease progression, evolution, and associated risk factors, and on novel diagnostic and therapeutic techniques. However, advances in the understanding and assessment of breast cancer are dependent on the ability to mimic the properties and microenvironment of tumors in vivo, which can be achieved through experimentation on animal models. This review covers an overview of the main animal models used in breast cancer research, namely in vitro models, in vivo models, in silico models, and other models. For each model, the main characteristics, advantages, and challenges associated to their use are highlighted.
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Haque MA, Wang Y, Shen Z, Li X, Saleemi MK, He C. Mycotoxin contamination and control strategy in human, domestic animal and poultry: A review. Microb Pathog 2020; 142:104095. [PMID: 32097745 DOI: 10.1016/j.micpath.2020.104095] [Citation(s) in RCA: 161] [Impact Index Per Article: 40.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/17/2020] [Accepted: 02/21/2020] [Indexed: 12/12/2022]
Abstract
Mycotoxins are secondary metabolites produced mainly by fungi belonging to the genera Aspergillus, Fusarium, Penicillium, Claviceps, and Alternaria that contaminate basic food products throughout the world, where developing countries are becoming predominantly affected. Currently, more than 500 mycotoxins are reported in which the most important concern to public health and agriculture include AFB1, OTA, TCTs (especially DON, T-2, HT-2), FB1, ZEN, PAT, CT, and EAs. The presence of mycotoxin in significant quantities poses health risks varying from allergic reactions to death on both humans and animals. This review brings attention to the present status of mycotoxin contamination of food products and recommended control strategies for mycotoxin mitigation. Humans are exposed to mycotoxins directly through the consumption of contaminated foods while, indirectly through carryover of toxins and their metabolites into animal tissues, milk, meat and eggs after ingestion of contaminated feeds. Pre-harvest (field) control of mycotoxin production and post-harvest (storage) mitigation of contamination represent the most effective approach to limit mycotoxins in food and feed. Compared with chemical and physical approaches, biological detoxification methods regarding biotransformation of mycotoxins into less toxic metabolites, are generally more unique, productive and eco-friendly. Along with the biological detoxification method, genetic improvement and application of nanotechnology show tremendous potential in reducing mycotoxin production thereby improving food safety and food quality for extended shelf life. This review will primarily describe the latest developments in the formation and detoxification of the most important mycotoxins by biological degradation and other alternative approaches, thereby reducing the potential adverse effects of mycotoxins.
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Affiliation(s)
- Md Atiqul Haque
- Key Lab of Animal Epidemiology and Zoonoses of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China; Department of Microbiology, Faculty of Veterinary & Animal Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur, 5200, Bangladesh
| | - Yihui Wang
- Key Lab of Animal Epidemiology and Zoonoses of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China
| | - Zhiqiang Shen
- Binzhou Animal Science and Veterinary Medicine Academy of Shandong Province, Binzhou, 256600, China
| | - Xiaohui Li
- Key Lab of Animal Epidemiology and Zoonoses of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China
| | - Muhammad Kashif Saleemi
- Department of Pathology, Faculty of Veterinary Science, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Cheng He
- Key Lab of Animal Epidemiology and Zoonoses of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing, 100193, China.
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Wulandari Z, Fardiaz D, Thenawijaya M, Dewi Yuliana N, Budiman C. ISOLASI LISOZIM ALBUMIN TELUR AYAM RAS DENGAN METODE KROMATOGRAFI PENUKAR ION. JURNAL TEKNOLOGI DAN INDUSTRI PANGAN 2018. [DOI: 10.6066/jtip.2018.29.2.155] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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10
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Wei Y, Huang L, Cao J, Wang C, Yan J. Dietary Safety Assessment of Flk1-Transgenic Fish. Front Physiol 2018; 9:8. [PMID: 29422865 PMCID: PMC5788912 DOI: 10.3389/fphys.2018.00008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Accepted: 01/04/2018] [Indexed: 11/29/2022] Open
Abstract
Genetic engineering, also called genetic modification, is facing with growing demands of aquaculture and aquatic products. Although various genetically modified (GM) aquatics have been generated, it is important to evaluate biosafety of GM organisms on the human health before entering into our food chain. For this purpose, we establish a zebrafish wild adult feeding Flk1-transgenic larvae model to examine the predatory fish's histology in multiple tissues, and the global gene expression profile in the liver. 180 days of feeding trial show that there are no significantly morphological changes in intestine, liver, kidney, and sex gonads between fish fed with Flk1 transgenic fish diet (TFD) and fish fed with regular food meal (RFM). However, a characteristic skin spot and autofluorescence increase in the theca of follicle are observed in F1 generation of TFD fish. Liver RNA-sequencing analyses demonstrate that 53 out of 56712 genes or isoforms are differentially transcribed, and mostly involved in proteolysis in extracellular region. According to GO enrichment terms these deregulated genes function in catalytic activity, steroid storing, lipid metabolic process and N-Glycan biosynthesis. These results suggest that a long term of Flk1-transgenic fish diet could alter certain metabolic pathways and possibly cause related tissue deformation. Compared to the previous reports, our feasible transgenic dietary assess system could evaluate subchronic and potential health impact of transgenic fish diet by combining multi-tissue histology and liver transcriptome analyses.
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12
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Gibbin EM, Massamba N'Siala G, Chakravarti LJ, Jarrold MD, Calosi P. The evolution of phenotypic plasticity under global change. Sci Rep 2017; 7:17253. [PMID: 29222433 PMCID: PMC5722875 DOI: 10.1038/s41598-017-17554-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Accepted: 11/28/2017] [Indexed: 11/18/2022] Open
Abstract
Marine ecosystems are currently in a state of flux, with ocean warming and acidification occurring at unprecedented rates. Phenotypic plasticity underpins acclimatory responses by shifting the mean phenotype in a population, which may buffer the negative effects of global change. However, little is known about how phenotypic plasticity evolves across multiple generations. We tested this by reciprocally-transplanting the polychaete Ophryotrocha labronica between control and global change scenarios (ocean warming and acidification in isolation and combined) over five generations. By comparing the reaction norms of four life-history traits across generations, we show that juvenile developmental rate in the combined scenario was the only trait that changed its plastic response across generations when transplanted back to control conditions, and that adaptive plasticity was conserved in most traits, despite significant levels of selection and strong declines in individual fitness in the multi-generational exposure. We suggest the change in level of plasticity in the combined scenario is caused by differential allocation of energy between the mean and the plasticity of the trait along the multigenerational exposure. The ability to maintain within-generational levels of plasticity under global change scenarios has important eco-evolutionary and conservation implications, which are examined under the framework of assisted evolution programs.
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Affiliation(s)
- Emma M Gibbin
- Département de Biologie Chimie et Géographie, Université du Québec à Rimouski, 300 Allée des Ursulines, Rimouski, Québec, G5L 3A1, Canada.
- Laboratory for Biological Geochemistry, School of Architecture, Civil and Environmental Engineering, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, Switzerland.
| | - Gloria Massamba N'Siala
- Département de Biologie Chimie et Géographie, Université du Québec à Rimouski, 300 Allée des Ursulines, Rimouski, Québec, G5L 3A1, Canada
- Centre d'Ecologie Fonctionnelle et Evolutive (CEFE- CNRS), Montpellier, Cedex 5, UMR 5175, France
| | - Leela J Chakravarti
- Département de Biologie Chimie et Géographie, Université du Québec à Rimouski, 300 Allée des Ursulines, Rimouski, Québec, G5L 3A1, Canada
- College of Science and Engineering, James Cook University, Townsville, 4811, Queensland, Australia
| | - Michael D Jarrold
- Département de Biologie Chimie et Géographie, Université du Québec à Rimouski, 300 Allée des Ursulines, Rimouski, Québec, G5L 3A1, Canada
- College of Science and Engineering, James Cook University, Townsville, 4811, Queensland, Australia
| | - Piero Calosi
- Département de Biologie Chimie et Géographie, Université du Québec à Rimouski, 300 Allée des Ursulines, Rimouski, Québec, G5L 3A1, Canada
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Hassanane MS, El Makawy AI, Helalia SM, Abdoon AS, Khalil KM, Ghanem TA, Tohamy AM, Sun XF, Shen W. First study of sperm mediated gene transfer in Egyptian river buffalo. J Genet Eng Biotechnol 2017; 15:475-482. [PMID: 30647689 PMCID: PMC6296624 DOI: 10.1016/j.jgeb.2017.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2016] [Revised: 05/08/2017] [Accepted: 06/06/2017] [Indexed: 01/13/2023]
Abstract
The present study was carried out to find the best treatments for enhancing the ration of insertion of a desired gene construct (pEGFP-N1) onto the sperm of buffalo as the first step for the production of transgenic buffalo using sperm mediated gene transfer (SMGT). The tested conditions were plasmid DNA concentration, sperm concentration, transfecting agent concentration: Dimethyle sulphoxide (DMSO) and time of transfection. The study proved that the best conditions for producing transgenic embryos were incubation sperm solution its concentration is 107/ml sperm with 3% DMSO: with 20 µg/ml from the linarized DNA, for 15 min at 4 °C are the best conditions to produce transgenic buffalo embryo using sperm mediated gene transfer.
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Key Words
- ANOVA, analysis of variance
- Buffalo embryos
- CCC, covalently closed circular
- COCs, Cumulus oocyte complexes
- DMSO
- DMSO, Dimethyle sulphoxide
- EGFP
- EGFP, enhanced green fluorescent protein
- IVF, in vitro fertilization
- MII, second meiotic division
- OD, optical density
- PBS, Phosphate buffer saline
- SMGT
- SMGT, sperm mediated gene transfer
- TCM199, tissue culture medium
- Transgenic
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Affiliation(s)
- Mohamed S. Hassanane
- Cell Biology Department, Genetic Engineering and Biotechnology Division, National Research Centre, Egypt
| | - Aida I. El Makawy
- Cell Biology Department, Genetic Engineering and Biotechnology Division, National Research Centre, Egypt
| | - Sahar M. Helalia
- Cell Biology Department, Genetic Engineering and Biotechnology Division, National Research Centre, Egypt
| | - Ahmed S. Abdoon
- Animal Reproduction and Artificial Insemination Department, Veterinary Research Division, National Research Centre, Egypt
| | - Kamal M.A. Khalil
- Genetics and Cytology Dept., Genetic Engineering and Biotechnology Division, National Research Centre, Egypt
| | | | - Amany M. Tohamy
- Zoology Department, Faculty of Science, Helwan University, Egypt
| | - Xiao-Feng Sun
- Institute of Reproductive Sciences, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
| | - Wei Shen
- Institute of Reproductive Sciences, College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, China
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Alvarado A, Faustino-Rocha AI, Colaço B, Oliveira PA. Experimental mammary carcinogenesis - Rat models. Life Sci 2017; 173:116-134. [PMID: 28188729 DOI: 10.1016/j.lfs.2017.02.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 01/26/2017] [Accepted: 02/06/2017] [Indexed: 12/22/2022]
Abstract
Mammary cancer is one of the most common cancers, victimizing more than half a million of women worldwide every year. Despite all the studies in this field, the current therapeutic approaches are not effective and have several devastating effects for patients. In this way, the need to better understand the mammary cancer biopathology and find effective therapies led to the development of several rodent models over years. With this review, the authors intended to provide the readers with an overview of the rat models used to study mammary carcinogenesis, with a special emphasis on chemically-induced models.
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Affiliation(s)
- Antonieta Alvarado
- Área de Patología, Decanato de Ciencias Veterinarias, Universidad Centroccidental "Lisandro Alvarado", UCLA, Lara, Venezuela; Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Ana I Faustino-Rocha
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, UTAD, Vila Real, Portugal
| | - Bruno Colaço
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; Department of Zootechnics, School of Agrarian and Veterinary Sciences, UTAD, Vila Real, Portugal
| | - Paula A Oliveira
- Center for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal; Department of Veterinary Sciences, School of Agrarian and Veterinary Sciences, UTAD, Vila Real, Portugal.
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15
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Pluripotent stem cells and livestock genetic engineering. Transgenic Res 2016; 25:289-306. [PMID: 26894405 DOI: 10.1007/s11248-016-9929-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Accepted: 01/06/2016] [Indexed: 01/12/2023]
Abstract
The unlimited proliferative ability and capacity to contribute to germline chimeras make pluripotent embryonic stem cells (ESCs) perfect candidates for complex genetic engineering. The utility of ESCs is best exemplified by the numerous genetic models that have been developed in mice, for which such cells are readily available. However, the traditional systems for mouse genetic engineering may not be practical for livestock species, as it requires several generations of mating and selection in order to establish homozygous founders. Nevertheless, the self-renewal and pluripotent characteristics of ESCs could provide advantages for livestock genetic engineering such as ease of genetic manipulation and improved efficiency of cloning by nuclear transplantation. These advantages have resulted in many attempts to isolate livestock ESCs, yet it has been generally concluded that the culture conditions tested so far are not supportive of livestock ESCs self-renewal and proliferation. In contrast, there are numerous reports of derivation of livestock induced pluripotent stem cells (iPSCs), with demonstrated capacity for long term proliferation and in vivo pluripotency, as indicated by teratoma formation assay. However, to what extent these iPSCs represent fully reprogrammed PSCs remains controversial, as most livestock iPSCs depend on continuous expression of reprogramming factors. Moreover, germline chimerism has not been robustly demonstrated, with only one successful report with very low efficiency. Therefore, even 34 years after derivation of mouse ESCs and their extensive use in the generation of genetic models, the livestock genetic engineering field can stand to gain enormously from continued investigations into the derivation and application of ESCs and iPSCs.
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Leroy G, Besbes B, Boettcher P, Hoffmann I, Capitan A, Baumung R. Rare phenotypes in domestic animals: unique resources for multiple applications. Anim Genet 2015; 47:141-53. [PMID: 26662214 DOI: 10.1111/age.12393] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2015] [Indexed: 12/26/2022]
Abstract
Preservation of specific and inheritable phenotypes of current or potential future importance is one of the main purposes of conservation of animal genetic resources. In this review, we investigate the issues behind the characterisation, utilisation and conservation of rare phenotypes, considering their multiple paths of relevance, variable levels of complexity and mode of inheritance. Accurately assessing the rarity of a given phenotype, especially a complex one, is not a simple task, because it requires the phenotypic and genetic characterisation of a large number of animals and populations and remains dependent of the scale of the study. Once characterised, specific phenotypes may contribute to various purposes (adaptedness, production, biological model, aesthetics, etc.) with adequate introgression programmes, which justifies the consideration of (real or potential) existence of such characteristics in in situ or ex situ conservation strategies. Recent biotechnological developments (genomic and genetic engineering) will undoubtedly bring important changes to the way phenotypes are characterised, introgressed and managed.
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Affiliation(s)
- G Leroy
- Animal Production and Health Division, Food and Agriculture Organization of the United Nations, Viale delle Terme di Caracalla, 00153, Rome, Italy
| | - B Besbes
- Animal Production and Health Division, Food and Agriculture Organization of the United Nations, Viale delle Terme di Caracalla, 00153, Rome, Italy
| | - P Boettcher
- Animal Production and Health Division, Food and Agriculture Organization of the United Nations, Viale delle Terme di Caracalla, 00153, Rome, Italy
| | - I Hoffmann
- Animal Production and Health Division, Food and Agriculture Organization of the United Nations, Viale delle Terme di Caracalla, 00153, Rome, Italy
| | - A Capitan
- INRA, UMR 1313 Génétique Animale et Biologie Intégrative, Domaine de Vilvert, F-78352, Jouy-en-Josas, France.,ALLICE, 149 rue de Bercy, F-75012, Paris, France
| | - R Baumung
- Animal Production and Health Division, Food and Agriculture Organization of the United Nations, Viale delle Terme di Caracalla, 00153, Rome, Italy
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17
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Van Eenennaam AL, Young AE. Animal agriculture and the importance of agnostic governance of biotechnology. ACTA ACUST UNITED AC 2015. [DOI: 10.1186/s40066-015-0043-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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18
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Lievens A, Petrillo M, Querci M, Patak A. Genetically modified animals: Options and issues for traceability and enforcement. Trends Food Sci Technol 2015. [DOI: 10.1016/j.tifs.2015.05.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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19
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Abstract
The genetic enhancement of wild animals and plants for characteristics that benefit human populations has been practiced for thousands of years, resulting in impressive improvements in commercially valuable species. Despite these benefits, genetic manipulations are rarely considered for noncommercial purposes, such as conservation and restoration initiatives. Over the last century, humans have driven global climate change through industrialization and the release of increasing amounts of CO2, resulting in shifts in ocean temperature, ocean chemistry, and sea level, as well as increasing frequency of storms, all of which can profoundly impact marine ecosystems. Coral reefs are highly diverse ecosystems that have suffered massive declines in health and abundance as a result of these and other direct anthropogenic disturbances. There is great concern that the high rates, magnitudes, and complexity of environmental change are overwhelming the intrinsic capacity of corals to adapt and survive. Although it is important to address the root causes of changing climate, it is also prudent to explore the potential to augment the capacity of reef organisms to tolerate stress and to facilitate recovery after disturbances. Here, we review the risks and benefits of the improvement of natural and commercial stocks in noncoral reef systems and advocate a series of experiments to determine the feasibility of developing coral stocks with enhanced stress tolerance through the acceleration of naturally occurring processes, an approach known as (human)-assisted evolution, while at the same time initiating a public dialogue on the risks and benefits of this approach.
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20
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Saul WC, Jeschke JM. Eco-evolutionary experience in novel species interactions. Ecol Lett 2015; 18:236-45. [DOI: 10.1111/ele.12408] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2014] [Revised: 10/27/2014] [Accepted: 12/11/2014] [Indexed: 12/20/2022]
Affiliation(s)
- Wolf-Christian Saul
- Department of Ecology and Ecosystem Management; Technische Universität München; Emil-Ramann-Str. 6 85354 Freising Germany
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB); Müggelseedamm 310 12587 Berlin Germany
- Department of Biology; Chemistry; Pharmacy; Institute of Biology; Freie Universität Berlin; Königin-Luise-Str. 1-3 14195 Berlin Germany
| | - Jonathan M. Jeschke
- Department of Ecology and Ecosystem Management; Technische Universität München; Emil-Ramann-Str. 6 85354 Freising Germany
- Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB); Müggelseedamm 310 12587 Berlin Germany
- Department of Biology; Chemistry; Pharmacy; Institute of Biology; Freie Universität Berlin; Königin-Luise-Str. 1-3 14195 Berlin Germany
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21
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The use of genetic engineering techniques to improve the lipid composition in meat, milk and fish products: a review. Animal 2014; 9:696-706. [PMID: 25500170 DOI: 10.1017/s1751731114003012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
The health-promoting properties of dietary long-chain n-3 polyunsaturated fatty acids (n-3 LCPUFAs) for humans are well-known. Products of animal-origin enriched with n-3 LCPUFAs can be a good example of functional food, that is food that besides traditionally understood nutritional value may have a beneficial influence on the metabolism and health of consumers, thus reducing the risk of various lifestyle diseases such as atherosclerosis and coronary artery disease. The traditional method of enriching meat, milk or eggs with n-3 LCPUFA is the manipulation of the composition of animal diets. Huge progress in the development of genetic engineering techniques, for example transgenesis, has enabled the generation of many kinds of genetically modified animals. In recent years, one of the aims of animal transgenesis has been the modification of the lipid composition of meat and milk in order to improve the dietetic value of animal-origin products. This article reviews and discusses the data in the literature concerning studies where techniques of genetic engineering were used to create animal-origin products modified to contain health-promoting lipids. These studies are still at the laboratory stage, but their results have demonstrated that the transgenesis of pigs, cows, goats and fishes can be used in the future as efficient methods of production of healthy animal-origin food of high dietetic value. However, due to high costs and a low level of public acceptance, the introduction of this technology to commercial animal production and markets seems to be a distant prospect.
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22
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Sundström LF, Vandersteen WE, Lõhmus M, Devlin RH. Growth-enhanced coho salmon invading other salmon species populations: effects on early survival and growth. J Appl Ecol 2014. [DOI: 10.1111/1365-2664.12185] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- L. Fredrik Sundström
- Centre for Aquaculture and Environmental Research; Fisheries and Oceans Canada; 4160 Marine Drive West Vancouver BC V7V 1N6 Canada
- Department of Ecology and Genetics/Animal Ecology; Evolutionary Biology Centre; Uppsala University; Norbyvägen 18D SE-752 36 Uppsala Sweden
| | - Wendy E. Vandersteen
- Centre for Aquaculture and Environmental Research; Fisheries and Oceans Canada; 4160 Marine Drive West Vancouver BC V7V 1N6 Canada
| | - Mare Lõhmus
- Centre for Aquaculture and Environmental Research; Fisheries and Oceans Canada; 4160 Marine Drive West Vancouver BC V7V 1N6 Canada
| | - Robert H. Devlin
- Centre for Aquaculture and Environmental Research; Fisheries and Oceans Canada; 4160 Marine Drive West Vancouver BC V7V 1N6 Canada
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Wan Q, Su J, Chen X, Yang C. Gene-based polymorphisms, genomic organization of interferon-β promoter stimulator 1 (IPS-1) gene and association study with the natural resistance to grass carp reovirus in grass carp Ctenopharyngodon idella. DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY 2013; 41:756-765. [PMID: 24001582 DOI: 10.1016/j.dci.2013.08.022] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/12/2013] [Revised: 08/19/2013] [Accepted: 08/24/2013] [Indexed: 06/02/2023]
Abstract
Interferon-β promoter stimulator 1 (IPS-1) plays a pivotal role in the production of type I interferon (IFN) and pro-inflammatory cytokines. Though its function in innate immunity was widely studied, its genetic polymorphisms and evolution information were rarely known. Herein, the present study firstly identified and characterized the genomic organization of CiIPS-1 (IPS-1 gene of grass carp, Ctenopharyngodon idella) and its nucleotide polymorphisms. CiIPS-1 consists of 8789 bp, with a 314 bp 5'-flanking region, 6 exons and 5 introns. After a challenge experiment, statistical analysis was performed to assess the association between the 17 polymorphisms of CiIPS-1 and the natural resistance of C. idella to grass carp reovirus (GCRV), which revealed that -3741 C/T in the intron 1, 933 C/G in the coding sequence and 2299 G/T in the last intron were significant (P < 0.05). The subsequent secondary challenge test further confirmed that -3741TT group were more resistant than -3741CC group to GCRV infection, while 933GG and 2299GG stocks were respectively more susceptible than 933CC and 2299TT stocks (P < 0.05). In addition, haplotype and polymorphism-polymorphism interaction analyses uncovered four significant haplotypes (P < 0.05) and two notable polymorphisms. These findings may provide basic data for the further functional research of CiIPS-1, and genetic markers for molecular and transgenic breeding of C. idella.
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Affiliation(s)
- Quanyuan Wan
- College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
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