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Colenbier R, Coppens L, Logghe T, van Zwol E, Timmermans JP, Bogers J. Protocol for xenografting of BxPC-3 pancreatic tumors using a chorioallantoic membrane model. STAR Protoc 2024; 5:102968. [PMID: 38492226 PMCID: PMC10959712 DOI: 10.1016/j.xpro.2024.102968] [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: 11/18/2023] [Revised: 01/04/2024] [Accepted: 03/04/2024] [Indexed: 03/18/2024] Open
Abstract
The chorioallantoic membrane (CAM) model is an increasingly attractive model for the study of human tumors. However, concise techniques for the use of pancreatic ductal adenocarcinoma BxPC-3 xenografts in CAM assays are not yet available. Here, we present a protocol for the induction of BxPC-3 xenograft tumors with high grafting efficiency. We describe steps for embryo incubation, egg handling, and grafting, each of which has been optimized to prevent fungal contamination and minimize mortality.
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Affiliation(s)
- Robin Colenbier
- Laboratory of Cell Biology and Histology, Faculty of Medicine and Health Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, 2610 Antwerp, Belgium.
| | - Lenny Coppens
- Laboratory of Cell Biology and Histology, Faculty of Medicine and Health Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, 2610 Antwerp, Belgium
| | | | | | - Jean-Pierre Timmermans
- Laboratory of Cell Biology and Histology, Faculty of Medicine and Health Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, 2610 Antwerp, Belgium
| | - Johannes Bogers
- Laboratory of Cell Biology and Histology, Faculty of Medicine and Health Sciences, Faculty of Pharmaceutical, Biomedical and Veterinary Sciences, University of Antwerp, 2610 Antwerp, Belgium; ElmediX NV, 2800 Mechelen, Belgium.
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2
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Abdel-Fattah SA, Madkour M, Hemida MA, Shourrap M. Growth performance, histological and physiological responses of heat-stressed broilers in response to short periods of incubation during egg storage and thermal conditioning. Sci Rep 2024; 14:94. [PMID: 38168551 PMCID: PMC10761903 DOI: 10.1038/s41598-023-50295-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2023] [Accepted: 12/18/2023] [Indexed: 01/05/2024] Open
Abstract
The short periods of incubation during egg storage (SPIDES) method enhances the quality of chicks and improves hatching rates. Additionally, embryonic thermal conditioning (TC) is a technique used to enhance thermotolerance in birds. Previous studies have evaluated the effects of SPIDES and embryonic TC separately. Yet, our hypothesis postulated that a synergistic effect could be achieved by integrating TC and SPIDES, thereby enhancing the broilers' resilience to thermal stress. We conducted an experiment involving 800 Ross broiler eggs, divided into two groups. The first group, referred to as S0, was maintained under standard storage room conditions and acted as our control group. The second group, known as S1, underwent a process called SPIDES for 5 h at a temperature of 37.8 ± 0.1 °C, on three occasions: days 5, 10, and 15 following egg collection. Upon reaching the 14th day of incubation (DOI), each of these primary groups was randomly subdivided into two equal subgroups. The control subgroup, designated as TC0, remained in the usual incubation conditions. Meanwhile, the other subgroup, TC1, was subjected to prenatal heat conditioning at a temperature of 39.5 ± 0.1 °C for 6 h per day, commencing on the 14th embryonic day (E) and extending until the 18th embryonic day (E). This experimental setup resulted in four distinct experimental subgroups: S0TC0, S1TC0, S0TC1, and S1TC1. The findings indicated that the combined application of SPIDES and TC had a significant positive effect on chick performance after hatching. Specifically, the (S1TC1) group exhibited the heaviest live body weight (LBW) and body weight gain (BWG) at the marketing age in comparison to the other groups. Furthermore, both SPIDES and TC had a positive influence on the relative weights of breast muscles and their histological measurements. The (S1TC1) group displayed significantly higher values in terms of the relative weight of breast muscles and the number of myocytes. In conclusion, SPIDES and TC have beneficial effects on pre- and post-hatch characteristics of broiler chicks up until the marketing age. Additionally, TC techniques improve chick performance, particularly under conditions of heat stress, and enhance the yield of breast muscle in later stages of life.
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Affiliation(s)
- Sayed A Abdel-Fattah
- Poultry Production Department, Faculty of Agriculture, Ain Shams University, Shoubra El-Kheima, 11241, Cairo, Egypt
| | - Mahmoud Madkour
- Animal Production Department, National Research Centre, Dokki, 12622, Giza, Egypt.
| | - Mona A Hemida
- Poultry Production Department, Faculty of Agriculture, Ain Shams University, Shoubra El-Kheima, 11241, Cairo, Egypt
| | - Mohamed Shourrap
- Poultry Production Department, Faculty of Agriculture, Ain Shams University, Shoubra El-Kheima, 11241, Cairo, Egypt
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3
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Araújo I, Lara L. Perspectives on vitamin E, canthaxanthin and selenium to chick embryo antioxidant protection. WORLD POULTRY SCI J 2023. [DOI: 10.1080/00439339.2023.2192885] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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Çam M, Kaya ZK, Güler S, Harman H, Kırıkçı K. Influence of egg storage time, position and turning on egg weight loss, embryonic mortality and hatching traits in chukar partridge ( Alectoris chukar). ITALIAN JOURNAL OF ANIMAL SCIENCE 2022. [DOI: 10.1080/1828051x.2022.2150095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Affiliation(s)
- Mustafa Çam
- Department of Animal Science, Faculty of Veterinary Medicine, Selcuk University, Konya, Turkey
| | - Zahit K. Kaya
- Department of Animal Science, Faculty of Veterinary Medicine, Selcuk University, Konya, Turkey
| | - Serdar Güler
- Department of Animal Science, Faculty of Veterinary Medicine, Selcuk University, Konya, Turkey
| | - Halil Harman
- Bahri Dagdas International Agricultural Research Institute, Konya, Turkey
| | - Kemal Kırıkçı
- Department of Animal Science, Faculty of Veterinary Medicine, Selcuk University, Konya, Turkey
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Costa BTA, Lopes TSB, Sousa LS, Barbosa HJS, Gonçalves TF, Franco CMA, Freitas Neto OCD, Lara LJC, Araújo ICS. Floor eggs: Hatchability, microbiological analysis, and effects of post-hatch use of ceftiofur on performance of broiler chicks. Res Vet Sci 2022; 152:610-617. [DOI: 10.1016/j.rvsc.2022.09.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 08/14/2022] [Accepted: 09/20/2022] [Indexed: 11/27/2022]
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Adriaensen H, Parasote V, Castilla I, Bernardet N, Halgrain M, Lecompte F, Réhault-Godbert S. How Egg Storage Duration Prior to Incubation Impairs Egg Quality and Chicken Embryonic Development: Contribution of Imaging Technologies. Front Physiol 2022; 13:902154. [PMID: 35711308 PMCID: PMC9194560 DOI: 10.3389/fphys.2022.902154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/25/2022] [Indexed: 11/13/2022] Open
Abstract
Storing fertilised eggs prior to incubation is a frequent practice in commercial hatcheries to coordinate activities and synchronise hatchings. However, the conditions used to store eggs can have major impacts on egg quality and the subsequent viability of chicken embryos. While storage temperatures of 16-18°C are classically used in hatcheries, the duration of storage varies from three to more than 10 days. We explored the effect of storage duration (zero, three or 10 days; D0, D3 and D10, respectively) at 16°C, 80% relative humidity (RH) on egg quality (Broiler, Ross 308), using computed tomography (CT) and classical measurements (egg weight, eggshell strength, egg white pH, Haugh units, yolk index and colour). The results revealed that a storage duration of up to 10 days negatively affected some egg quality traits (yolk index and volume, air chamber volume and egg white pH). Eggs stored for three or 10 days were further incubated for 11, 13 or 15 days (37.8°C, 55% RH). Eggs were analysed by magnetic resonance imaging (MRI) and CT to assess the development of the embryo and internal egg changes occurring during incubation. First, data showed that the fertility and sex ratio of eggs were not affected by storage duration. However, the mortality of viable eggs was increased in the D10 group compared to the D3 group. Results of non-invasive imaging technologies revealed that the storage of eggs for 10 days impaired embryo growth as early as 11 days of incubation (decrease in brain and embryo volumes). Collectively, these data provide new evidence that the duration of egg storage negatively affects embryonic growth. They further corroborate that this parameter is likely to be crucial to synchronising embryonic stages and maybe reducing the hatching window, hence limiting the time spent by newborn chicks in hatchers. In addition, our results highlight that CT and MRI imaging technologies are useful non-invasive tools to evaluate egg quality prior to incubation and the impact of storage (or incubation) practices on developmental growth of the embryo.
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Affiliation(s)
- Hans Adriaensen
- INRAE, CNRS, IFCE, Université de Tours, PRC, Nouzilly, France
- INRAE, CHU de Tours, Université de Tours, PIXANIM, Nouzilly, France
| | - Vanille Parasote
- INRAE, CNRS, IFCE, Université de Tours, PRC, Nouzilly, France
- INRAE, CHU de Tours, Université de Tours, PIXANIM, Nouzilly, France
| | - Ines Castilla
- INRAE, CNRS, IFCE, Université de Tours, PRC, Nouzilly, France
- INRAE, CHU de Tours, Université de Tours, PIXANIM, Nouzilly, France
| | | | | | - François Lecompte
- INRAE, CNRS, IFCE, Université de Tours, PRC, Nouzilly, France
- INRAE, CHU de Tours, Université de Tours, PIXANIM, Nouzilly, France
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Brady K, Talbot CC, Long JA, Welch G, French N, Nicholson D, Bakst MR. Transcriptome analysis of blastoderms exposed to prolonged egg storage and short periods of incubation during egg storage. BMC Genomics 2022; 23:262. [PMID: 35379173 PMCID: PMC8981843 DOI: 10.1186/s12864-022-08463-2] [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: 10/01/2021] [Accepted: 03/08/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Cool temperature egg storage prior to incubation is a common practice in the broiler industry; however, prolonged egg storage causes increased embryonic mortality and decreased hatchability and growth in surviving chicks. Exposing eggs to short periods of incubation during egg storage (SPIDES) reduces the adverse consequences of prolonged storage. SPIDES increases blastodermal cell viability by reducing apoptosis, though the counteracting mechanisms are unclear. To define the impact of prolonged storage and SPIDES, transcriptome analysis compared gene expression from blastoderms isolated from eggs exposed to the following treatments: control (CR, stored at 17 °C for 4 days), prolonged storage (NSR, stored at 17 °C for 21 days), SPIDES (SR, stored at 17 °C for 21 days with SPIDES), and incubated control (C2, stored at 17 °C for 4 days followed by incubation to HH (Hamburger-Hamilton) stage 2, used as the ideal standard development) (n = 3/group). Data analysis was performed using the CLC Genomics Workbench platform. Functional annotation was performed using DAVID and QIAGEN Ingenuity Pathway Analysis. RESULTS In total, 4726 DEGs (differentially expressed genes) were identified across all experimental group comparisons (q < 0.05, FPKM> 20, |fold change| > 1.5). DEGs common across experimental comparisons were involved in cellular homeostasis and cytoskeletal protein binding. The NSR group exhibited activation of ubiquitination, apoptotic, and cell senescence processes. The SR group showed activation of cell viability, division, and metabolic processes. Through comparison analysis, cellular respiration, tRNA charging, cell cycle control, and HMBG1 signaling pathways were significantly impacted by treatment and potential regulatory roles for ribosomal protein L23a (RPL23A) and MYC proto-oncogene, BHLH transcription factor (MYC) were identified. CONCLUSIONS Prolonged egg storage (NSR) resulted in enriched cell stress and death pathways; while SPIDES (SR) resulted in enriched basic cell and anti-apoptotic pathways. New insights into DNA repair mechanisms, RNA processing, shifts in metabolism, and chromatin dynamics in relation to egg storage treatment were obtained through this study. Although egg storage protocols have been examined through targeted gene expression approaches, this study provided a global view of the extensive molecular networks affected by prolonged storage and SPIDES and helped to identify potential upstream regulators for future experiments to optimize egg storage parameters.
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Affiliation(s)
- K Brady
- Animal Biosciences and Biotechnology Laboratory, BARC, ARS, USDA, 10300 Baltimore Ave. Bldg. 200, Rm. 103, Beltsville, MD, 20705, USA.
| | - C C Talbot
- Institute for Basic Biomedical Sciences, Johns Hopkins University School of Medicine, Baltimore, MD, 21205, USA
| | - J A Long
- Animal Biosciences and Biotechnology Laboratory, BARC, ARS, USDA, 10300 Baltimore Ave. Bldg. 200, Rm. 103, Beltsville, MD, 20705, USA
| | - G Welch
- Animal Biosciences and Biotechnology Laboratory, BARC, ARS, USDA, 10300 Baltimore Ave. Bldg. 200, Rm. 103, Beltsville, MD, 20705, USA
| | - N French
- Aviagen Ltd., Newbridge, Midlothian, EH28 8SZ, UK
| | - D Nicholson
- Aviagen Ltd., Newbridge, Midlothian, EH28 8SZ, UK
| | - M R Bakst
- Animal Biosciences and Biotechnology Laboratory, BARC, ARS, USDA, 10300 Baltimore Ave. Bldg. 200, Rm. 103, Beltsville, MD, 20705, USA
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Çam M, Kaya ZK, Güler S, Harman H, Kırıkçı K. Quality assessment of chukar partridge (A. chukar) eggs during different conditions (time, turning and position) of storage. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2022; 64:365-379. [PMID: 35530399 PMCID: PMC9039947 DOI: 10.5187/jast.2022.e9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 01/11/2022] [Accepted: 01/28/2022] [Indexed: 11/23/2022]
Abstract
The present study was conducted with the aim of investigating the effect of storage length, turning frequency and egg position on internal quality traits of chukar eggs obtained from 56-week-old chukar partridges under the same nutrition and management conditions. A total of 720 eggs were collected and assigned to 36 subgroups according to storage length (7, 14, 21, and 28 d), turning frequency (0, 1, and 24 per day) and egg position (pointed end up, blunt end up and horizontal). As a result of the study, almost all the internal quality traits of chukar eggs were negatively affected by lengthening of storage period especially 21 days and longer (p < 0.001). Internal egg quality traits weren't statistically affected by turning frequency except yolk index (p < 0.01). An improvement was observed in Haugh unit, albumen index and heigh of eggs stored with pointed end up (p < 0.001). Some significant interactions occurred among all internal egg quality traits which were mostly dependent on the eggs stored horizontally, extended storage time more than 21 days and egg turning during storage. The results and interactions showed that internal quality traits would be preserved well for the eggs stored less than 21 days with the position of pointed end up independent of turning. If the storage period was to exceed 21 days, the eggs should be positioned horizontally and turning should be applied to preserve the quality of chukar eggs.
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Affiliation(s)
- Mustafa Çam
- Department of Animal Science, Faculty of
Veterinary Medicine, Selcuk University, Konya 42250,
Turkey
| | - Zahit Kutalmış Kaya
- Department of Animal Science, Faculty of
Veterinary Medicine, Selcuk University, Konya 42250,
Turkey
| | - Serdar Güler
- Department of Animal Science, Faculty of
Veterinary Medicine, Selcuk University, Konya 42250,
Turkey
| | - Halil Harman
- Bahri Dagdas International Agricultural
Research Institute, University College Dublin, Konya 42020,
Turkey
| | - Kemal Kırıkçı
- Department of Animal Science, Faculty of
Veterinary Medicine, Selcuk University, Konya 42250,
Turkey
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Tainika B, Bayraktar ÖH. Lighted incubation: embryonic development, hatchability and hatching quality of broiler chicks. WORLD POULTRY SCI J 2021. [DOI: 10.1080/00439339.2022.1988806] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Brian Tainika
- Department of Animal Production and Technologies, Faculty of Ayhan Şahenk Agricultural Sciences and Technologies, Niğde Ömer Halisdemir University, Niğde, Turkey
| | - Özer Hakan Bayraktar
- Department of Animal Science, Faculty of Agriculture, Ege University, İzmir, Turkey
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