1
|
Zhang L, Hong Y, Sun K, Zhao S, Bai Y, Yang S, Tao J, Shi F, Zhan F, Lin L, Qin Z. Passive protection of chicken egg yolk immunoglobulin (IgY) against Streptococcus agalactiae infection in Nile tilapia (Oreochromis niloticus). FISH & SHELLFISH IMMUNOLOGY 2024:109923. [PMID: 39326687 DOI: 10.1016/j.fsi.2024.109923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2024] [Revised: 09/23/2024] [Accepted: 09/24/2024] [Indexed: 09/28/2024]
Abstract
IgY is an immunoglobulin primarily found in the serum and egg yolk of birds, amphibians, and reptiles. Recent years, IgY is considered to have a good application prospect in the immunodiagnostics and passive immunotherapy of aquatic diseases. In this study, we prepared a specific IgY against Streptococcus agalactiae in tilapia after immunizing the hens for 4 times. The result of ELISA detection showed that the IgY titers in water-soluble fraction (WSF) after 6 weeks of immunization reached 1:51200 and last for 4 weeks. Western blot (WB) analysis data showed that the specific IgY could recognize the target band, the specific IgY showed a concentration-dependent inhibitory effect on the growth of S. agalactiae, altered cell wall structure and aggluted of S. agalactiae. The quantitative reverse transcription PCR (qRT-PCR) analysis data suggested that the specific IgY downregulated the expression of pro-inflammatory factors (IL-8, TNF-α), upregulated the anti-inflammatory factors (IL-10, TGF-β). In addition, the histopathological results showed that the specific IgY significantly decreased the pathological manifestations, dramatically improved the survival rates of tilapia in injection, feeding, and immersion experiments. Collectively, our findings demonstrated that the broad potential of specific IgY for the prevention and treatment of S. agalactiae infection in tilapia.
Collapse
Affiliation(s)
- Linpeng Zhang
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Yucong Hong
- Guangdong Provincial Key Laboratory of Aquatic Larvae Feed, Guangdong Yuequn Ocean Biotechnology Co., Ltd, Jieyang, Guangdong, 515500
| | - Kaihui Sun
- Guangdong Provincial Key Laboratory of Aquatic Larvae Feed, Guangdong Yuequn Ocean Biotechnology Co., Ltd, Jieyang, Guangdong, 515500
| | - Shuyan Zhao
- Guangdong Provincial Key Laboratory of Aquatic Larvae Feed, Guangdong Yuequn Ocean Biotechnology Co., Ltd, Jieyang, Guangdong, 515500
| | - Yanhan Bai
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Shiyi Yang
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Junjie Tao
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Fei Shi
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Fanbin Zhan
- Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China
| | - Li Lin
- Guangdong Provincial Key Laboratory of Aquatic Larvae Feed, Guangdong Yuequn Ocean Biotechnology Co., Ltd, Jieyang, Guangdong, 515500; Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China.
| | - Zhendong Qin
- Guangdong Provincial Key Laboratory of Aquatic Larvae Feed, Guangdong Yuequn Ocean Biotechnology Co., Ltd, Jieyang, Guangdong, 515500; Guangdong Provincial Water Environment and Aquatic Products Security Engineering Technology Research Center, Guangzhou Key Laboratory of Aquatic Animal Diseases and Waterfowl Breeding, College of Animal Sciences and Technology, Zhongkai University of Agriculture and Engineering, Guangzhou, Guangdong, 510225, China.
| |
Collapse
|
2
|
Ruiz Díaz N, Cisternas C, Silva M, Hernández A, Chacana P. Characterization of anti-soybean agglutinin (SBA) IgY antibodies: a new strategy for neutralization of the detrimental biological activity of SBA. Front Vet Sci 2024; 11:1382510. [PMID: 38681857 PMCID: PMC11045903 DOI: 10.3389/fvets.2024.1382510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 03/20/2024] [Indexed: 05/01/2024] Open
Abstract
Anti-soybean agglutinin (SBA) IgY was produced, and its potential to neutralize the haemagglutinating activity of SBA in vitro was tested. Thirty-five-week-old hens [treatment (n = 5) and control (n = 5)] were immunized with SBA or injected with saline 4 times every 15 days. Eggs were collected after the last immunization, and IgY was extracted using the polyethylene glycol (PEG) method. Serum anti-SBA IgY titres in immunized hens increased after the first immunization and reached a plateau between days 45 and 60. In contrast, specific IgY titres in the control group remained at basal levels throughout the evaluation. Average IgY titres were significantly higher in the treatment group on days 15, 30, 45, and 60. Total IgY content in the egg yolk extract was 38.7 ± 1.6 and 37.7 ± 1.5 mg/ml for the treatment and control groups, respectively. The specific anti-SBA IgY titer detected in the egg yolk extract was significantly higher (p < 0.001) for hens in the treatment group compared to the control group, with OD450nm values of 0.98 ± 0.05 and 0.058 ± 0.02, respectively. The specificity of anti-SBA IgY was confirmed by the Western blotting, and the inhibition of SBA-induced haemagglutination in vitro was compared with D-galactose, a known molecule that binds to SBA and blocks its binding to erythrocytes. The inhibition of SBA-induced haemagglutination by the anti-SBA IgY reached 512 units of haemagglutination inhibition (UHI), compared to 8 or 256 UHI, respectively, when IgY from control chickens or D-galactose was used. Thus, anti-SBA IgY antibodies were efficiently produced in large quantities and effectively inhibited SBA-induced haemagglutination in vitro.
Collapse
Affiliation(s)
- Nancy Ruiz Díaz
- Programa de Doctorado en Ciencias Agropecuarias, Facultad de Recursos Naturales, Universidad Católica de Temuco, Temuco, Chile
- Escuela de Medicina Veterinaria, Facultad de Recursos Naturales y Medicina Veterinaria, Universidad Santo Tomás, Temuco, Chile
| | - Carlos Cisternas
- Escuela de Tecnología Médica, Facultad de Salud, Universidad Santo Tomás, Temuco, Chile
| | - Mauricio Silva
- Departamento de Ciencias Veterinarias y Salud Pública, Facultad de Recursos Naturales, Universidad Católica de Temuco, Temuco, Chile
- Núcleo de Investigación en Producción Agroalimentaria, Facultad de Recursos Naturales, Universidad Católica de Temuco, Temuco, Chile
| | - Adrián Hernández
- Núcleo de Investigación en Producción Agroalimentaria, Facultad de Recursos Naturales, Universidad Católica de Temuco, Temuco, Chile
- Departamento de Ciencias Agropecuarias y Acuícolas, Facultad de Recursos Naturales, Universidad Católica de Temuco, Temuco, Chile
| | - Pablo Chacana
- Instituto de Patobiología, Instituto Nacional de Tecnología Agropecuaria, Buenos Aires, Argentina
| |
Collapse
|
3
|
Grzywa R, Łupicka-Słowik A, Sieńczyk M. IgYs: on her majesty's secret service. Front Immunol 2023; 14:1199427. [PMID: 37377972 PMCID: PMC10291628 DOI: 10.3389/fimmu.2023.1199427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 05/16/2023] [Indexed: 06/29/2023] Open
Abstract
There has been an increasing interest in using Immunoglobulin Y (IgY) antibodies as an alternative to "classical" antimicrobials. Unlike traditional antibiotics, they can be utilized on a continual basis without leading to the development of resistance. The veterinary IgY antibody market is growing because of the demand for minimal antibiotic use in animal production. IgY antibodies are not as strong as antibiotics for treating infections, but they work well as preventative agents and are natural, nontoxic, and easy to produce. They can be administered orally and are well tolerated, even by young animals. Unlike antibiotics, oral IgY supplements support the microbiome that plays a vital role in maintaining overall health, including immune system function. IgY formulations can be delivered as egg yolk powder and do not require extensive purification. Lipids in IgY supplements improve antibody stability in the digestive tract. Given this, using IgY antibodies as an alternative to antimicrobials has garnered interest. In this review, we will examine their antibacterial potential.
Collapse
|
4
|
Cheng S, Li H, Luo J, Chi J, Zhao W, Lin J, Xu C. Egg yolk antibody combined with bismuth-based quadruple therapy in Helicobacter pylori infection rescue treatment: a single-center, randomized, controlled study. Front Microbiol 2023; 14:1150129. [PMID: 37256061 PMCID: PMC10225724 DOI: 10.3389/fmicb.2023.1150129] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 04/03/2023] [Indexed: 06/01/2023] Open
Abstract
Background The increasing antibiotic resistance is the main issue causing Helicobacter pylori (H. pylori) eradication failure. As a nutritional supplement, Egg Yolk Antibody (Ig Y) provides a new approach for H. pylori infection rescue therapy. Methods In this randomized, controlled study, 100 H. pylori-positive patients with previous H. pylori eradication treatment were included. All individuals received standard bismuth-containing quadruple therapy twice daily (5 mg ilaprazole, 100 mg doxycycline, 500 mg clarithromycin or 1 g amoxicillin or 100 mg furazolidone, and 220 mg colloidal bismuth tartrate) for 14 days and were randomized to receive either twice daily 7 g Ig Y-H. pylori treatment (study group) or not (control group). 4 weeks after the end of treatment, urea breath tests were used to assess the H. pylori eradication rate. All participants scored by the Global Overall Symptom scale (GOS) and recorded adverse events during the trial. Results The H. pylori eradication rates were 84.0% (95% CI 73.5-94.5%) vs. 80.0% (95% CI 68.5-91.5%) in the study and control groups at intention-to-treat (ITT) analysis and 85.7% (95% CI 75.6-95.9%) vs. 80.0% (95% CI 68.5-91.5%) at per-protocol (PP) analysis, respectively. The number of over 80% symptom relief after treatment in the two groups was 27 (60%) and 12 (29.2%) (p < 0.05), and the incidences of adverse events were 4 (8%) and 6 (12%), respectively. Conclusion Both groups achieved satisfactory eradication efficiency in H. pylori rescue therapy and Ig Y-H. pylori effectively alleviates the symptoms with good compliance and fewer adverse effects.
Collapse
|
5
|
El-Kafrawy SA, Abbas AT, Oelkrug C, Tahoon M, Ezzat S, Zumla A, Azhar EI. IgY antibodies: The promising potential to overcome antibiotic resistance. Front Immunol 2023; 14:1065353. [PMID: 36742328 PMCID: PMC9896010 DOI: 10.3389/fimmu.2023.1065353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Accepted: 01/05/2023] [Indexed: 01/22/2023] Open
Abstract
Antibiotic resistant bacteria are a growing threat to global health security. Whilst the emergence of antimicrobial resistance (AMR) is a natural phenomenon, it is also driven by antibiotic exposure in health care, agriculture, and the environment. Antibiotic pressure and inappropriate use of antibiotics are important factors which drive resistance. Apart from their use to treat bacterial infections in humans, antibiotics also play an important role in animal husbandry. With limited antibiotic options, alternate strategies are required to overcome AMR. Passive immunization through oral, nasal and topical administration of egg yolk-derived IgY antibodies from immunized chickens were recently shown to be effective for treating bacterial infections in animals and humans. Immunization of chickens with specific antigens offers the possibility of creating specific antibodies targeting a wide range of antibiotic-resistant bacteria. In this review, we describe the growing global problem of antimicrobial resistance and highlight the promising potential of the use of egg yolk IgY antibodies for the treatment of bacterial infections, particularly those listed in the World Health Organization priority list.
Collapse
Affiliation(s)
- Sherif A El-Kafrawy
- Special Infectious Agents Unit-BSL3, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Clinical Pathology, National Liver Institute, Menoufia University, Shebin El-Kom, Egypt
| | - Aymn T Abbas
- Special Infectious Agents Unit-BSL3, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,Biotechnology Research Laboratories, Gastroenterology, Surgery Centre, Mansoura University, Mansoura, Egypt
| | | | - Marwa Tahoon
- Epidemiology and Preventive Medicine Department, National Liver Institute, Menoufia University, Shebin El-Kom, Egypt
| | - Sameera Ezzat
- Epidemiology and Preventive Medicine Department, National Liver Institute, Menoufia University, Shebin El-Kom, Egypt.,MARC for Medical Services and Scientific Research, 6th of October City, Giza, Egypt
| | - Alimuddin Zumla
- Special Infectious Agents Unit-BSL3, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Infection, Division of Infection and Immunity, Centre for Clinical Microbiology, University College London, London, United Kingdom.,National Institute for Health and Care Research (NIHR) Biomedical Research Centre, University College London Hospitals, London, United Kingdom
| | - Esam I Azhar
- Special Infectious Agents Unit-BSL3, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.,Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
| |
Collapse
|
6
|
Effects of Dietary Supplementation with Glutamine on the Immunity and Intestinal Barrier Gene Expression in Broiler Chickens Infected with Salmonella Enteritidis. Animals (Basel) 2022; 12:ani12172168. [PMID: 36077889 PMCID: PMC9454664 DOI: 10.3390/ani12172168] [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: 07/11/2022] [Revised: 08/16/2022] [Accepted: 08/22/2022] [Indexed: 11/30/2022] Open
Abstract
The effects of glutamine (Gln) on immunity and intestinal barrier gene expression levels in broilers challenged with Salmonella Enteritidis were evaluated. A total of 400 1-day-old broilers were randomly assigned to four groups, 10 repetition treatments per group with 10 broiler chickens for a 21-day feeding trial. The groups were the normal control group (CON, no infected group, fed with a basal diet); the S. Enteritidis-infected control group (SCC, infected with 2.0 × 104 CFU/mL of S. Enteritidis, fed a basal diet); and the Gln 1 and 2 groups, who were challenged with S. Enteritidis and fed a basal diet plus Gln at 0.5% and 1.0%, respectively. The results show that S. Enteritidis had adverse effects on the average daily feed intake, average daily gain, and the feed conversion ratio of infected broilers compared with those of CON broilers on d 7 (p < 0.05); decreased serum immunoglobulin A (IgA), immunoglobulin M (IgM), and immunoglobulin G (IgG) concentrations, and intestinal mucosa Bcl-2 mRNA expression levels (p < 0.05); increased the Lysozyme (LZM, only serum), NO, inducible NO synthase (iNOS) (except at 4 d), and total nitric oxide synthase (TNOS) (except at 4 d) activities in serum and the intestinal mucosa; and increased intestinal mucosa polymeric immunoglobulin receptor (pIgR) (except at 21 d), Avian beta-defensin 5 (AvBD5), AvBD14, Bax, and Bak mRNA expression levels during the experimental period (p < 0.05). Supplementation with Gln improved growth performance; increased serum IgA, IgG, and IgM concentrations and intestinal mucosa Bcl-2 mRNA expression levels (p < 0.05); decreased the LZM (only serum), NO, iNOS (except at 4 d), and TNOS (except at 4 d) activities in serum and the intestinal mucosa; and decreased intestinal mucosa pIgR (except at 21 d), AvBD5, AvBD14, Bax, and Bak mRNA expression levels during the experimental period (p < 0.05). These results suggest that Gln might lessen the inflammatory reaction of the small intestine and enlarge the small bowel mucosa immune and barrier function in broiler chickens challenged with S. Enteritidis.
Collapse
|
7
|
Lee L, Samardzic K, Wallach M, Frumkin LR, Mochly-Rosen D. Immunoglobulin Y for Potential Diagnostic and Therapeutic Applications in Infectious Diseases. Front Immunol 2021; 12:696003. [PMID: 34177963 PMCID: PMC8220206 DOI: 10.3389/fimmu.2021.696003] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Accepted: 05/26/2021] [Indexed: 01/14/2023] Open
Abstract
Antiviral, antibacterial, and antiparasitic drugs and vaccines are essential to maintaining the health of humans and animals. Yet, their production can be slow and expensive, and efficacy lost once pathogens mount resistance. Chicken immunoglobulin Y (IgY) is a highly conserved homolog of human immunoglobulin G (IgG) that has shown benefits and a favorable safety profile, primarily in animal models of human infectious diseases. IgY is fast-acting, easy to produce, and low cost. IgY antibodies can readily be generated in large quantities with minimal environmental harm or infrastructure investment by using egg-laying hens. We summarize a variety of IgY uses, focusing on their potential for the detection, prevention, and treatment of human and animal infections.
Collapse
Affiliation(s)
- Lucia Lee
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, United States
| | - Kate Samardzic
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, United States
| | - Michael Wallach
- School of Life Sciences, University of Technology, Sydney, NSW, Australia
| | | | - Daria Mochly-Rosen
- Department of Chemical and Systems Biology, Stanford University School of Medicine, Stanford, CA, United States
| |
Collapse
|
8
|
Bustos CP, Leiva CL, Gambarotta M, Guida N, Chacana PA. In vitro Inhibitory Activity of IgY Antibodies Against Salmonella Ser. Newport Isolated from Horses. J Equine Vet Sci 2021; 103:103657. [PMID: 34281640 DOI: 10.1016/j.jevs.2021.103657] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2021] [Revised: 04/21/2021] [Accepted: 04/22/2021] [Indexed: 11/19/2022]
Abstract
Equine salmonellosis is caused by several Salmonella serotypes, including Salmonella Newport, which cause enterocolitis and diarrhea. Treatment usually includes the administration of antibiotics. However, since multidrug-resistant Salmonella is commonly detected, alternative options to control the pathogen are needed. One of these options is the use of specific egg yolk antibodies (IgY) for passive immunotherapy. Thus, the aim of our work was to produce IgY antibodies against an equine S. Newport strain and assess their in vitro inhibitory activity. To this end, laying hens were immunized with an inactivated S. Newport strain by using either Freund's or Montanide adjuvant and egg yolk extracts were obtained. The levels of specific IgY antibodies against Salmonella in sera and egg extracts were determined by dot-blot and microagglutination. Besides, the IgY extracts were characterized by total protein analysis, SDS-PAGE, Western Blot, and inhibition of bacterial motility. IgY extracts showed high purity (87.7 to 91.8 %), high microagglutination titers, and the ability to inhibit the motility of the bacterium. The results using Montanide were similar to those using the traditional Freund's adjuvant. Thus, Montanide may also be a good adjuvant to produce IgY. IgY-technology represents a potential tool for the control of salmonellosis in horses.
Collapse
Affiliation(s)
- Carla P Bustos
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Cátedra de Enfermedades Infecciosas, Argentina; Instituto de Patobiología, Instituto Nacional de Tecnología Agropecuaria, Nicolás Repetto y Los Reseros S/N, Hurlingham, Buenos Aires, Argentina; Instituto de Patobiología Veterinaria, UEDD INTA-CONICET, Nicolás Repetto y Los Reseros S/N, Hurlingham, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina.
| | - Carlos L Leiva
- Instituto de Patobiología, Instituto Nacional de Tecnología Agropecuaria, Nicolás Repetto y Los Reseros S/N, Hurlingham, Buenos Aires, Argentina; Instituto de Patobiología Veterinaria, UEDD INTA-CONICET, Nicolás Repetto y Los Reseros S/N, Hurlingham, Buenos Aires, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas, Argentina
| | - Mariana Gambarotta
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Cátedra de Bioestadística, Argentina
| | - Nora Guida
- Universidad de Buenos Aires, Facultad de Ciencias Veterinarias, Cátedra de Enfermedades Infecciosas, Argentina
| | - Pablo A Chacana
- Instituto de Patobiología, Instituto Nacional de Tecnología Agropecuaria, Nicolás Repetto y Los Reseros S/N, Hurlingham, Buenos Aires, Argentina; Instituto de Patobiología Veterinaria, UEDD INTA-CONICET, Nicolás Repetto y Los Reseros S/N, Hurlingham, Buenos Aires, Argentina
| |
Collapse
|
9
|
Effect of Replacing in-Feed Antibiotic Growth Promoters with a Combination of Egg Immunoglobulins and Phytomolecules on the Performance, Serum Immunity, and Intestinal Health of Weaned Pigs Challenged with Escherichia coli K88. Animals (Basel) 2021; 11:ani11051292. [PMID: 33946355 PMCID: PMC8146111 DOI: 10.3390/ani11051292] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/17/2021] [Accepted: 04/28/2021] [Indexed: 01/12/2023] Open
Abstract
Simple Summary Post-weaning diarrhea (PWD) in pigs caused by Escherichia coli (E. coli) is a global problem which results in substantial economic losses, due to decreased performance and a high incidence of mortality and morbidity. Due to the banning of antibiotic growth promoters (AGPs) by many countries, it would be valuable to find environmentally friendly and non-antibiotic alternatives to AGPs and to evaluate their effectiveness. Both immunoglobulins and phytomolecules are separately reported as benefiting animal growth, but the efficiency of combinations of immunoglobulins and phytomolecules as AGP alternatives is largely unknown. In this study, the results showed that a mixture of immunoglobulin and phytomolecule administration had positive effects on feed efficiency, diarrhea reduction, intestinal morphology, and coliform control. Combinations of immunoglobulins and phytomolecules can be used as a potential alternative to AGPs in weanling piglets. Abstract The study was conducted to investigate the effects of replacing antibiotic growth promoters (AGPs) with an egg immunoglobulin (IgY) combined with phytomolecules (PM) on the growth rate, serum immunity, and intestinal health of weaned pigs challenged with Escherichia coli K88 (E. coli K88). A total of 192 piglets were weaned at 28 days old with an average weight of 7.29 (± 0.04) kg. They were randomly divided into four treatments containing eight replicates with six piglets per replicate. The treatment groups were NC and PC fed a basal diet, AGP fed a basal diet supplemented with 75 mg/kg chlortetracycline, 50 mg/kg oxytetracycline calcium, and 40 mg/kg zinc bacitracin, IPM fed a basal diet supplemented with IgY at dose of 2.5 g/kg and 1.0 g/kg and PM at dose of 300 mg/kg and 150 mg/kg during days 1 to 17 and 18 to 42, respectively. On days 7 to 9 of the experiment, piglets in the PC, AGP, and IPM groups were orally challenged with 20 mL E. coli K88 (109 CFU/mL), while piglets in the NC group were challenged with 20 mL medium without E. coli K88. The E. coli K88 challenge model was successful as the incidence of post-weaning diarrhea (PWD) of piglets challenged with E. coli K88 was significantly higher than that of those unchallenged piglets during the challenge time (days 7 to 9) and days 1 to 7 of post-challenge (p < 0.05). A diet with combinations of IgY and PM and AGPs significantly decreased the incidence of PWD during the challenge time and days 1 to 7 of post-challenge (p < 0.05) compared to the PC group and significantly improved the ratio of feed to weight gain (F:G) during days 1 to 17 of the experiment compared to the NC and PC groups (p < 0.05). In comparison with the PC group, piglets in the IPM group had significantly higher serum levels of IgA, IgG, and IgM (p < 0.05), but lower serum IL-1β on day 17 of experiement (p < 0.05). Besides, diet supplementation with AGP significantly decreased serum IL-1β, IL-6, and TNF-α on days 17 and 42 (p < 0.05) with comparison to the PC group. Piglets in the IPM group showed a significantly lower level of fecal coliforms (p < 0.05), but a higher villus height of jejunum and ileum and higher ratio of villus height to crypt depth of duodenum and jejunum (p < 0.05) than those piglets in the PC group. In summary, diet supplementation with a mixture of IgY and PM decreased the incidence of PWD and coliforms, increased feed conversion ratio, and improved intestinal histology and immune function.
Collapse
|
10
|
Jia S, McWhorter AR, Andrews DM, Underwood GJ, Chousalkar KK. Challenges in Vaccinating Layer Hens against Salmonella Typhimurium. Vaccines (Basel) 2020; 8:E696. [PMID: 33228065 PMCID: PMC7712944 DOI: 10.3390/vaccines8040696] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 11/14/2020] [Accepted: 11/15/2020] [Indexed: 12/22/2022] Open
Abstract
Salmonella Typhimurium is among the most common causes of bacterial foodborne gastrointestinal disease in humans. Food items containing raw or undercooked eggs are frequently identified during traceback investigation as the source of the bacteria. Layer hens can become persistently infected with Salmonella Typhimurium and intermittently shed the bacteria over the course of their productive lifetime. Eggs laid in a contaminated environment are at risk of potential exposure to bacteria. Thus, mitigating the bacterial load on farms aids in the protection of the food supply chain. Layer hen producers use a multifaceted approach for reducing Salmonella on farms, including the all-in-all-out management strategy, strict biosecurity, sanitization, and vaccination. The use of live attenuated Salmonella vaccines is favored because they elicit a broader host immune response than killed or inactivated vaccines that have been demonstrated to provide cross-protection against multiple serovars. Depending on the vaccine, two to three doses of Salmonella Typhimurium vaccines are generally administered to layer hens within the first few weeks. The productive life of a layer hen, however, can exceed 70 weeks and it is unclear whether current vaccination regimens are effective for that extended period. The objective of this review is to highlight layer hen specific challenges that may affect vaccine efficacy.
Collapse
Affiliation(s)
- Siyuan Jia
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, SA 5371, Australia; (S.J.); (A.R.M.)
| | - Andrea R. McWhorter
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, SA 5371, Australia; (S.J.); (A.R.M.)
| | - Daniel M. Andrews
- Bioproperties Pty Ltd., Ringwood, VIC 3134, Australia; (D.M.A.); (G.J.U.)
| | | | - Kapil K. Chousalkar
- School of Animal and Veterinary Sciences, The University of Adelaide, Roseworthy, SA 5371, Australia; (S.J.); (A.R.M.)
| |
Collapse
|
11
|
Induction of Mucosal Humoral Immunity by Subcutaneous Injection of an Oil-emulsion Vaccine against Salmonella enterica subsp. enterica serovar Enteritidis in Chickens. Food Saf (Tokyo) 2018; 6:151-155. [PMID: 31998576 PMCID: PMC6795388 DOI: 10.14252/foodsafetyfscj.2018003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2018] [Accepted: 08/29/2018] [Indexed: 12/02/2022] Open
Abstract
Salmonella enterica subsp. enterica serovar Enteritidis
(SE) is one of the major causes of food poisoning. Much effort has been made to develop a
vaccine for the prevention of SE colonization and infection in poultry. However, the
effect of inactivated whole-cell SE vaccines on the bacterial attachment has not been
clarified. This study investigated the immune responses to a killed whole-cell SE vaccine
in chickens and the effect of vaccination on the bacterial attachment of SE to cultured
Vero cells. A 1 ml dose of 108–109 CFU viable SE bacterial cells was
orally administered to chickens at 4 weeks or 10 months post vaccination. The number (CFU)
of SE in 1 g of cecal droppings was counted on day 6 after administration. The SE CFUs
were significantly lower (p < 0.05) in the vaccinated chickens, not
only at 4 weeks but also at 10 months after vaccination, than in the unvaccinated control
chickens. Anti-SE IgG and anti-SE IgA were detected using enzyme-linked immunosorbent
assay (ELISA) in serum and intestinal and oviduct fluid samples from vaccinated chickens.
Adhesion of heat-killed SE cells to Vero cells was reduced by pre-treatment of the
bacteria by the vaccinated chicken-derived intestinal fluid, indicating the potential of
the vaccine-induced antibody to prevent SE adhesion to epithelial cell surfaces.
Collapse
|
12
|
Nazemi E, Hassen WM, Frost EH, Dubowski JJ. Growth of Escherichia coli on the GaAs (001) surface. Talanta 2018; 178:69-77. [PMID: 29136882 DOI: 10.1016/j.talanta.2017.08.097] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/23/2017] [Accepted: 08/24/2017] [Indexed: 10/18/2022]
Abstract
Detection of pathogenic bacteria and monitoring their susceptibility to antibiotics are of great importance in the fields of medicine, pharmaceutical research, as well as water and food industries. In order to develop a photonic biosensor for detection of bacteria by taking advantage of photoluminescence (PL) of GaAs-based devices, we have investigated the capture and growth of Escherichia coli K12 on bare and biofunctionalized surfaces of GaAs (001) - a material of interest for capping different semiconductor microstructures. The results were compared with the capture and growth of Escherichia coli K12 on Au surfaces that have commonly been applied for studying a variety of biological and biochemical reactions. We found that neither GaAs nor Au-coated glass wafers placed in Petri dishes inoculated with bacteria inhibited bacterial growth in nutrient agar, regardless of the wafers being bare or biofunctionalized. However, the capture and growth of bacteria on biofunctionalized surfaces of GaAs and Au wafers kept in a flow cell and exposed to different concentrations of bacteria and growth medium revealed that the initial surface coverage and the subsequent bacterial growth were dependent on the biofunctionalization architecture, with antibody-coated surfaces clearly being most efficient in capturing bacteria and offering better conditions for growth of bacteria. We have observed that, as long as the GaAs wafers were exposed to bacterial suspensions at concentrations of at least 105 CFU/mL, bacteria could grow on the surface of wafers, regardless of the type of biofunctionalization architecture used to capture the bacteria. These results provide important insight towards the successful development of GaAs-based devices designed for photonic monitoring of bacterial reactions to different biochemical environments.
Collapse
Affiliation(s)
- Elnaz Nazemi
- Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, Department of Electrical and Computer Engineering, Faculty of Engineering, Université de Sherbrooke, 3000, boul. de l'Université, Sherbrooke, Québec, Canada J1K 0A5.
| | - Walid M Hassen
- Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, Department of Electrical and Computer Engineering, Faculty of Engineering, Université de Sherbrooke, 3000, boul. de l'Université, Sherbrooke, Québec, Canada J1K 0A5.
| | - Eric H Frost
- Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, Department of Electrical and Computer Engineering, Faculty of Engineering, Université de Sherbrooke, 3000, boul. de l'Université, Sherbrooke, Québec, Canada J1K 0A5; Department of Microbiology and Infectiology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3001, 12th Avenue North, Sherbrooke, Québec, Canada J1H 5N4.
| | - Jan J Dubowski
- Interdisciplinary Institute for Technological Innovation (3IT), CNRS UMI-3463, Department of Electrical and Computer Engineering, Faculty of Engineering, Université de Sherbrooke, 3000, boul. de l'Université, Sherbrooke, Québec, Canada J1K 0A5.
| |
Collapse
|
13
|
Suresh G, Das RK, Kaur Brar S, Rouissi T, Avalos Ramirez A, Chorfi Y, Godbout S. Alternatives to antibiotics in poultry feed: molecular perspectives. Crit Rev Microbiol 2017; 44:318-335. [DOI: 10.1080/1040841x.2017.1373062] [Citation(s) in RCA: 83] [Impact Index Per Article: 11.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
| | - Ratul Kumar Das
- INRS-ETE, Université du Québec, Québec, QC, Canada
- TERI Deakin Nanobiotechnology Centre, TERI Gram, The Energy and Resources Institute, Gurgaon, India
| | | | | | - Antonio Avalos Ramirez
- Centre National en Électrochimie et en Technologie Environnementales Inc, Shawinigan, Canada
| | - Younes Chorfi
- Département de biomédecine vétérinaire, Université de Montréal, St-Hyacinthe, Canada
| | - Stephane Godbout
- Institut de recherche et de développement en agroenvironnement, Québec, Canada
| |
Collapse
|
14
|
Passive immunization with hyperimmune egg-yolk IgY as prophylaxis and therapy for poultry diseases – A review. Anim Health Res Rev 2015; 16:163-76. [DOI: 10.1017/s1466252315000195] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
AbstractPassive immunization with pathogen-specific egg yolk antibodies (IgY) is emerging as a potential alternative to antibiotics for the treatment and prevention of various human and animal diseases. Laying hens are an excellent source of high-quality polyclonal antibodies, which can be collected noninvasively from egg yolks. The use of IgY offers several advantages in that it is environmentally friendly, nontoxic, and reduces the numbers of animals required for antibody production. This paper reviews the use of IgY antibodies in the treatment and prevention of enteric pathogen infections in poultry. Brief descriptions of the production, structure, and properties of IgY are also presented. Some limitations of the technology and future perspectives are discussed.
Collapse
|
15
|
Oliver C, Valenzuela K, Silva H, Haro R, Cortés M, Sandoval R, Pontigo J, Álvarez C, Figueroa J, Avendaño-Herrera R, Troncoso J, Yáñez A. Effectiveness of egg yolk immunoglobulin against the intracellular salmonid pathogen Piscirickettsia salmonis. J Appl Microbiol 2015; 119:365-76. [DOI: 10.1111/jam.12857] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 05/14/2015] [Accepted: 05/18/2015] [Indexed: 11/28/2022]
Affiliation(s)
- C. Oliver
- Instituto de Bioquímica y Microbiología; Facultad de Ciencias; Universidad Austral de Chile; Valdivia Chile
| | - K. Valenzuela
- Instituto de Bioquímica y Microbiología; Facultad de Ciencias; Universidad Austral de Chile; Valdivia Chile
| | - H. Silva
- Instituto de Bioquímica y Microbiología; Facultad de Ciencias; Universidad Austral de Chile; Valdivia Chile
| | - R.E. Haro
- Instituto de Bioquímica y Microbiología; Facultad de Ciencias; Universidad Austral de Chile; Valdivia Chile
| | - M. Cortés
- Instituto de Bioquímica y Microbiología; Facultad de Ciencias; Universidad Austral de Chile; Valdivia Chile
| | - R. Sandoval
- Instituto de Bioquímica y Microbiología; Facultad de Ciencias; Universidad Austral de Chile; Valdivia Chile
| | - J.P. Pontigo
- Instituto de Bioquímica y Microbiología; Facultad de Ciencias; Universidad Austral de Chile; Valdivia Chile
| | - C. Álvarez
- Instituto de Bioquímica y Microbiología; Facultad de Ciencias; Universidad Austral de Chile; Valdivia Chile
| | - J.E. Figueroa
- Instituto de Bioquímica y Microbiología; Facultad de Ciencias; Universidad Austral de Chile; Valdivia Chile
- Interdisciplinary Center for Aquaculture Research (INCAR); Concepción Chile
| | - R. Avendaño-Herrera
- Interdisciplinary Center for Aquaculture Research (INCAR); Concepción Chile
- Laboratorio de Patología de Organismos Acuáticos y Biotecnología Acuícola; Departamento de Ciencias Biológicas; Facultad de Ciencias Biológicas; Universidad Andrés Bello; Viña del Mar Chile
- Centro de Investigación Marina Quintay (CIMARQ); Quintay Chile
| | | | - A.J. Yáñez
- Instituto de Bioquímica y Microbiología; Facultad de Ciencias; Universidad Austral de Chile; Valdivia Chile
- Interdisciplinary Center for Aquaculture Research (INCAR); Concepción Chile
| |
Collapse
|
16
|
Teshager D, Tesfaye S, Fikre Z, Mu uz G, Yimer M. The potential application of avian egg antibodies with emphasis on immunotherapeutic and immunodiagnostic purpose. ACTA ACUST UNITED AC 2015. [DOI: 10.5897/jvmah2014.0334] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
|
17
|
Bellingeri RV, Picco NY, Alustiza FE, Canova JV, Molina MA, Acevedo DF, Barbero C, Vivas AB. pH-responsive hydrogels to protect IgY from gastric conditions: in vitro evaluation. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2015; 52:3117-22. [PMID: 25892818 PMCID: PMC4397343 DOI: 10.1007/s13197-014-1337-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 03/07/2014] [Accepted: 03/25/2014] [Indexed: 10/25/2022]
Abstract
Oral administration of specific egg yolk immunoglobulin (IgY) is effective against a number of gastrointestinal pathogens. However, the activity of orally administered IgY is reduced rapidly, since IgY is sensitive to pepsin and low pH. In this study, hydrogels containing acrylamide and acrylic acid were synthesized and used to encapsulate IgY. The capacity of these structures to load, protect and release IgY and the interaction between IgY and hydrogels by FTIR spectroscopy were studied. The particle size and swelling percentage of hydrogels were highly dependent on the pH of the buffer solution. As expected, pH-sensitive hydrogels had a high IgY loading percentage (99.2 ± 12.9 mg IgY/mg hydrogel) at pH 7.4. It means that each gel piece incorporated approximately 8.4 ± 1.1 mg IgY. The results showed that the hydrogels could efficiently incorporate IgY and retain it inside the polymer network at pH <2.2. However, IgY was slowly released at basic pH and a high percentage remained inside. The IR spectra show that IgY interacts with the hydrogel in its network with extended hydrogen bonds. The present study demonstrates that hydrogels particles can efficiently incorporate the IgY but cannot show a controlled and sustained release of IgY in simulated intestinal fluid probably due to hydrophobic interactions with the polymer network. The stability of IgY in simulated gastric fluid was greatly improved by encapsulation in hydrogels. This approach provides information about a novelty method for delivery of IgY for the prevention and control of enteric diseases.
Collapse
Affiliation(s)
- R. V. Bellingeri
- />Animal Biotechnology Laboratory, Department of Animal Anatomy, Faculty of Agronomy and Veterinary, National University of Rio Cuarto, Río Cuarto, 5800 Córdoba Argentina
| | - N. Y. Picco
- />Animal Biotechnology Laboratory, Department of Animal Anatomy, Faculty of Agronomy and Veterinary, National University of Rio Cuarto, Río Cuarto, 5800 Córdoba Argentina
| | - F. E. Alustiza
- />Animal Biotechnology Laboratory, Department of Animal Anatomy, Faculty of Agronomy and Veterinary, National University of Rio Cuarto, Río Cuarto, 5800 Córdoba Argentina
| | - J. V. Canova
- />Animal Biotechnology Laboratory, Department of Animal Anatomy, Faculty of Agronomy and Veterinary, National University of Rio Cuarto, Río Cuarto, 5800 Córdoba Argentina
| | - M. A. Molina
- />Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany
| | - D. F. Acevedo
- />Advanced Materials Laboratory, Department of Chemistry, Faculty of Exact, Physico-Chemical and Natural Sciences, National University of Río Cuarto, Río Cuarto, Argentina
| | - C. Barbero
- />Advanced Materials Laboratory, Department of Chemistry, Faculty of Exact, Physico-Chemical and Natural Sciences, National University of Río Cuarto, Río Cuarto, Argentina
| | - A. B. Vivas
- />Animal Biotechnology Laboratory, Department of Animal Anatomy, Faculty of Agronomy and Veterinary, National University of Rio Cuarto, Río Cuarto, 5800 Córdoba Argentina
| |
Collapse
|
18
|
Al-Adwani SR, Crespo R, Shah DH. Production and evaluation of chicken egg-yolk-derived antibodies against Campylobacter jejuni colonization-associated proteins. Foodborne Pathog Dis 2013; 10:624-31. [PMID: 23742296 DOI: 10.1089/fpd.2012.1313] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Campylobacter jejuni is one of the most important causes of foodborne gastroenteritis. Chickens are considered a reservoir host of C. jejuni, and epidemiological studies have shown that contaminated chicken meat is a primary source of human infection. The objective of this study was to produce chicken egg-yolk-derived antibody (IgY) against the five C. jejuni colonization-associated proteins or CAPs (CadF, FlaA, MOMP, FlpA, and CmeC). Recombinant C. jejuni CAPs were expressed in Escherichia coli and were purified by affinity chromatography. Specific-pathogen-free laying hens were hyperimmunized with each recombinant CAP to induce production of α-CAP-specific IgY. Egg yolks were collected from immunized and nonimmunized hens and were lyophilized to obtain egg-yolk powder (EYP) with or without α-C. jejuni CAP-specific IgY. IgY was purified from EYP, and the antibody response in serum and egg yolk was tested by indirect enzyme-linked immunosorbent assay. The α-C. jejuni CAP-specific IgY levels were significantly (p<0.05) higher in both serum and EYP obtained from immunized hens as compared with the nonimmunized hens. Each α-C. jejuni CAP-specific IgY reacted with the C. jejuni cells and recombinant CAPs as detected by immunofluorescence microscopy and Western blot assays, respectively. We also show that α-CadF, α-MOMP, and α-CmeC IgY significantly reduced adherence of C. jejuni to the chicken hepatocellular carcinoma (LMH) cells, suggesting that these α-C. jejuni CAP-specific IgY may be useful as a passive immunotherapeutic to reduce C. jejuni colonization in chickens.
Collapse
Affiliation(s)
- Salma R Al-Adwani
- Department of Veterinary Microbiology and Pathology, Washington State University, Pullman, Washington 99164, USA
| | | | | |
Collapse
|
19
|
Galiş AM, Marcq C, Marlier D, Portetelle D, Van I, Beckers Y, Théwis A. Control ofSalmonellaContamination of Shell Eggs-Preharvest and Postharvest Methods: A Review. Compr Rev Food Sci Food Saf 2013. [DOI: 10.1111/1541-4337.12007] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Anca M. Galiş
- Univ. of Agronomical Sciences and Veterinary Medicine of Bucharest; Animal Science Unit; Bd. Mărăşti, no. 59, sector 1; Bucharest; 011464; Romania
| | - Christopher Marcq
- Univ. of Liege, Gembloux Agro-Bio Tech; Animal Science Unit. Passage des Déportés; 2, B-5030; Gembloux; Belgium
| | - Didier Marlier
- Univ. of Liege, Faculty of Veterinary Medicine; Dept. of Clinical Science, Clinic for Birds, Rabbits and Rodents; Boulevard de Colonster 20, B42; Sart-Tilman; B4000; Liege; Belgium
| | - Daniel Portetelle
- Univ. of Liege, Gembloux Agro-Bio Tech; Animal and Microbial Biology Unit.; Passage des Déportés, 2; B-5030; Gembloux; Belgium
| | - Ilie Van
- Univ. of Agronomical Sciences and Veterinary Medicine of Bucharest; Animal Science Unit; Bd. Mărăşti, no. 59, sector 1; Bucharest; 011464; Romania
| | - Yves Beckers
- Univ. of Liege, Gembloux Agro-Bio Tech; Animal Science Unit. Passage des Déportés; 2, B-5030; Gembloux; Belgium
| | - André Théwis
- Univ. of Liege, Gembloux Agro-Bio Tech; Animal Science Unit. Passage des Déportés; 2, B-5030; Gembloux; Belgium
| |
Collapse
|
20
|
Affiliation(s)
| | - Yoshinori Mine
- Department of Food Science, University of Guelph, Guelph, Ontario N1G 2W1, Canada;
| |
Collapse
|
21
|
Doyle MP, Erickson MC. Opportunities for mitigating pathogen contamination during on-farm food production. Int J Food Microbiol 2012; 152:54-74. [DOI: 10.1016/j.ijfoodmicro.2011.02.037] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2010] [Revised: 02/03/2011] [Accepted: 02/28/2011] [Indexed: 10/18/2022]
|
22
|
Preparation of immunoglobulin Y (IgY) against lipopolysaccharide using gel chromatography from the yolks of eggs laid by immunized hens. Protein J 2011; 29:475-80. [PMID: 20798981 DOI: 10.1007/s10930-010-9275-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The objective is to prevent and treat injuries caused by lipopolysaccharide (LPS) from gram negative bacteria in animals and humans, we produced antibodies against LPS from egg yolk. LPS from E. coli (O111:B4) mixed with Freund's Adjuvant was used as the immunogen to immunize Roman hens. Immunized eggs were collected, and immunoglobulin Y (IgY) was purified using a water solution, salt precipitation and gel chromatography. The molecular weight and purity were determined by SDS-PAGE, the antibody titer by noncompetitive enzyme-linked immunosorbent assay (ELISA) and antibody activity against LPS by the mortality of mice intraperitoneally injected with LPS or LPS-IgY solutions. IgY against LPS showed two protein bands at 68 and 26 kDa on the gel; the antibody titer was almost 1:25,600. After incubation with LPS, IgY decreased the mortality of mice challenged with LPS. This study provided an efficient way to produce high-titer egg yolk antibodies, which could attenuate lethal effects of LPS, by immunizing hens. Furthermore, the LPS antibody was purified well using a water solution, salting-out and gel chromatography.
Collapse
|
23
|
Vandeplas S, Dubois Dauphin R, Beckers Y, Thonart P, Théwis A. Salmonella in chicken: current and developing strategies to reduce contamination at farm level. J Food Prot 2010; 73:774-85. [PMID: 20377971 DOI: 10.4315/0362-028x-73.4.774] [Citation(s) in RCA: 111] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Salmonella is a human pathogen that frequently infects poultry flocks. Consumption of raw or undercooked contaminated poultry products can induce acute gastroenteritis in humans. Faced with the public health concerns associated with salmonellosis, the European Union has established a European regulation forcing member states to implement control programs aimed at reducing Salmonella prevalence in poultry production, especially at the primary production level. The purpose of the present review article is to summarize the current research and to suggest future developments in the area of Salmonella control in poultry, which may be of value to the industry in the coming years. The review will focus especially on preventive strategies that have been developed and that aim at reducing the incidence of Salmonella colonization in broiler chickens at the farm level. In addition to the usual preventive hygienic measures, other strategies have been investigated, such as feed and drinking water acidification with organic acids and immune strategies based on passive and active immunity. Modification of the diet by changing ingredients and nutrient composition with the intent of reducing a bird's susceptibility to Salmonella infection also has been examined. Because in ovo feeding accelerates small intestine development and enhances epithelial cell function, this approach could be an efficient tool for controlling enteric pathogens. Feed additives such as antibiotics, prebiotics, probiotics, and synbiotics that modify the intestinal microflora are part of another field of investigation, and their success depends on the additive used. Other control methods such as the use of chlorate products and bacteriophages also are under study.
Collapse
Affiliation(s)
- S Vandeplas
- Animal Science Unit, Gembloux Agro-Bio Tech, University of Liège, Passage des Déportés, Gembloux, Belgium.
| | | | | | | | | |
Collapse
|
24
|
Chalghoumi R, Marcq C, Théwis A, Portetelle D, Beckers Y. Effects of feed supplementation with specific hen egg yolk antibody (immunoglobin Y) on Salmonella species cecal colonization and growth performances of challenged broiler chickens. Poult Sci 2009; 88:2081-92. [DOI: 10.3382/ps.2009-00173] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
|