1
|
Fegan JE, Waeckerlin RC, Tesfaw L, Islam EA, Deresse G, Dufera D, Assefa E, Woldemedhin W, Legesse A, Akalu M, Bayissa B, Nguyen QH, Ng D, Ahn SK, Schryvers AB, Tefera TA, Moraes TF, Gray-Owen SD. Developing a PmSLP3-based vaccine formulation that provides robust long-lasting protection against hemorrhagic septicemia-causing serogroup B and E strains of Pasteurella multocida in cattle. Front Immunol 2024; 15:1392681. [PMID: 38835751 PMCID: PMC11148319 DOI: 10.3389/fimmu.2024.1392681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Accepted: 04/19/2024] [Indexed: 06/06/2024] Open
Abstract
Background Pasteurella multocida is a bacterial pathogen that causes a variety of infections across diverse animal species, with one of the most devastating associated diseases being hemorrhagic septicemia. Outbreaks of hemorrhagic septicemia in cattle and buffaloes are marked by rapid progression and high mortality. These infections have particularly harmful socio-economic impacts on small holder farmers in Africa and Asia who are heavily reliant on a small number of animals kept as a means of subsistence for milk and draft power purposes. A novel vaccine target, PmSLP-3, has been identified on the surface of hemorrhagic septicemia-associated strains of P. multocida and was previously shown to elicit robust protection in cattle against lethal challenge with a serogroup B strain. Methods Here, we further investigate the protective efficacy of this surface lipoprotein, including evaluating the immunogenicity and protection upon formulation with a variety of adjuvants in both mice and cattle. Results PmSLP-3 formulated with Montanide ISA 61 elicited the highest level of serum and mucosal IgG, elicited long-lasting serum antibodies, and was fully protective against serogroup B challenge. Studies were then performed to identify the minimum number of doses required and the needed protein quantity to maintain protection. Duration studies were performed in cattle, demonstrating sustained serum IgG titres for 3 years after two doses of vaccine and full protection against lethal serogroup B challenge at 7 months after a single vaccine dose. Finally, a serogroup E challenge study was performed, demonstrating that PmSLP-3 vaccine can provide protection against challenge by the two serogroups responsible for hemorrhagic septicemia. Conclusion Together, these data indicate that PmSLP-3 formulated with Montanide ISA 61 is an immunogenic and protective vaccine against hemorrhagic septicemia-causing P. multocida strains in cattle.
Collapse
Affiliation(s)
- Jamie E Fegan
- Department of Molecular Genetics, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Regula C Waeckerlin
- Department of Microbiology, Immunology, and Infectious Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Liyuwork Tesfaw
- Department of Veterinary Bacteriology, National Veterinary Institute, Bishoftu/Debre Zeyit, Ethiopia
| | - Epshita A Islam
- Department of Biochemistry, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Getaw Deresse
- Department of Veterinary Bacteriology, National Veterinary Institute, Bishoftu/Debre Zeyit, Ethiopia
| | - Dawit Dufera
- Department of Veterinary Bacteriology, National Veterinary Institute, Bishoftu/Debre Zeyit, Ethiopia
| | - Eyob Assefa
- Department of Veterinary Bacteriology, National Veterinary Institute, Bishoftu/Debre Zeyit, Ethiopia
| | - Wubet Woldemedhin
- Department of Veterinary Bacteriology, National Veterinary Institute, Bishoftu/Debre Zeyit, Ethiopia
| | - Abinet Legesse
- Department of Veterinary Bacteriology, National Veterinary Institute, Bishoftu/Debre Zeyit, Ethiopia
| | - Mirtneh Akalu
- Department of Veterinary Bacteriology, National Veterinary Institute, Bishoftu/Debre Zeyit, Ethiopia
| | - Berecha Bayissa
- Department of Veterinary Bacteriology, National Veterinary Institute, Bishoftu/Debre Zeyit, Ethiopia
| | - Quynh Huong Nguyen
- Department of Biochemistry, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Dixon Ng
- Department of Biochemistry, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Sang Kyun Ahn
- Department of Molecular Genetics, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Anthony B Schryvers
- Department of Microbiology, Immunology, and Infectious Diseases, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Takele A Tefera
- Department of Veterinary Bacteriology, National Veterinary Institute, Bishoftu/Debre Zeyit, Ethiopia
| | - Trevor F Moraes
- Department of Biochemistry, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Scott D Gray-Owen
- Department of Molecular Genetics, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
2
|
Chen N, Jiang D, Liu Y, Zhang Z, Zhou Y, Zhu Z. Preparation of Escherichia coli ghost of anchoring bovine Pasteurella multocida OmpH and its immunoprotective effect. BMC Vet Res 2023; 19:192. [PMID: 37803295 PMCID: PMC10557220 DOI: 10.1186/s12917-023-03743-9] [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: 11/01/2022] [Accepted: 09/15/2023] [Indexed: 10/08/2023] Open
Abstract
Pasteurella multocida is a pathogen that can infect humans and animals. A ghost is an empty bacterial body devoid of cytoplasm and nucleic acids that can be efficiently presented by antigen-presenting cells. To study a novel ghost vector vaccine with cross-immune protection, we used bacteriophage PhiX174 RF1 and Pasteurella multocida standard strain CVCC393 as templates to amplify the split genes E and OmpH to construct a bidirectional expression vector E'-OmpH-pET28a-ci857-E. This is proposed to prepare a ghost Escherichia coli (engineered bacteria) capable of attaching and producing Pasteurella multocida OmpH on the inner membrane of Escherichia coli (BL21). The aim is to assess the antibody levels and the effectiveness of immune protection by conducting a mouse immunoprotective test. The bidirectional expression vector E'-OmpH-pET28a-ci857-E was successfully constructed. After induction by IPTG, identification by SDS-PAGE, western blot, ghost culture and transmission electron microscope detection, it was proven that the Escherichia coli ghost anchored to Pasteurella multocida OmpH was successfully prepared. The immunoprotective test in mice showed that the antibody levels of Pasteurella multocida inactivated vaccine, OmpH, ghost (aluminum glue adjuvant) and ghost (Freund's adjuvant) on day 9 after immunization were significantly different from those of the PBS control group (P < 0.01). The immune protection rates were 100%, 80%, 75%, and 65%, respectively, and the PBS negative control was 0%, which proved that they all had specific immune protection effects. Therefore, this study lays the foundation for the further study of ghosts as carriers of novel vaccine-presenting proteins.
Collapse
Affiliation(s)
- Nannan Chen
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
| | - Dongjun Jiang
- Shandong Collaborative Innovation Center for Diagnosis, Treatment and Behavioral Interventions of Mental Disorders, Institute of Mental Health, Jining Medical University, Jining, 272067, China
- Shandong Key Laboratory of Behavioral Medicine, School of Mental Health, Jining Medical University, Jining, 272067, China
| | - Yu Liu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
- Key Laboratory of Bovine Disease Control in Northeast China, Ministry of Agriculture and Rural Affairs, Daqing, 163319, China
- Engineering Research Center for Prevention and Control of Cattle Diseases, Heilongjiang Province, Daqing, 163319, China
| | - Zecai Zhang
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
- Key Laboratory of Bovine Disease Control in Northeast China, Ministry of Agriculture and Rural Affairs, Daqing, 163319, China
- Engineering Research Center for Prevention and Control of Cattle Diseases, Heilongjiang Province, Daqing, 163319, China
| | - Yulong Zhou
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, China
- Key Laboratory of Bovine Disease Control in Northeast China, Ministry of Agriculture and Rural Affairs, Daqing, 163319, China
- Engineering Research Center for Prevention and Control of Cattle Diseases, Heilongjiang Province, Daqing, 163319, China
| | - Zhanbo Zhu
- College of Animal Science and Veterinary Medicine, Heilongjiang Bayi Agricultural University, Daqing, 163319, China.
- Key Laboratory of Bovine Disease Control in Northeast China, Ministry of Agriculture and Rural Affairs, Daqing, 163319, China.
- Engineering Research Center for Prevention and Control of Cattle Diseases, Heilongjiang Province, Daqing, 163319, China.
| |
Collapse
|
3
|
Mahboob S, Ullah N, Farhan Ul Haque M, Rauf W, Iqbal M, Ali A, Rahman M. Genomic characterization and comparative genomic analysis of HS-associated Pasteurella multocida serotype B:2 strains from Pakistan. BMC Genomics 2023; 24:546. [PMID: 37710174 PMCID: PMC10500850 DOI: 10.1186/s12864-023-09626-5] [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: 04/17/2023] [Accepted: 08/26/2023] [Indexed: 09/16/2023] Open
Abstract
BACKGROUND Haemorrhagic septicaemia (HS) is a highly fatal and predominant disease in livestock, particularly cattle and buffalo in the tropical regions of the world. Pasteurella multocida (P. multocida), serotypes B:2 and E:2, are reported to be the main causes of HS wherein serotype B:2 is more common in Asian countries including Pakistan and costs heavy financial losses every year. As yet, very little molecular and genomic information related to the HS-associated serotypes of P. multocida isolated from Pakistan is available. Therefore, this study aimed to explore the characteristics of novel bovine isolates of P. multocida serotype B:2 at the genomic level and perform comparative genomic analysis of various P. multocida strains from Pakistan to better understand the genetic basis of pathogenesis and virulence. RESULTS To understand the genomic variability and pathogenomics, we characterized three HS-associated P. multocida serotype B:2 strains isolated from the Faisalabad (PM1), Peshawar (PM2) and Okara (PM3) districts of Punjab, Pakistan. Together with the other nine publicly available Pakistani-origin P. multocida strains and a reference strain Pm70, a comparative genomic analysis was performed. The sequenced strains were characterized as serotype B and belong to ST-122. The strains contain no plasmids; however, each strain contains at least two complete prophages. The pan-genome analysis revealed a higher number of core genes indicating a close resemblance to the studied genomes and very few genes (1%) of the core genome serve as a part of virulence, disease, and defense mechanisms. We further identified that studied P. multocida B:2 strains harbor common antibiotic resistance genes, specifically PBP3 and EF-Tu. Remarkably, the distribution of virulence factors revealed that OmpH and plpE were not present in any P. multocida B:2 strains while the presence of these antigens was reported uniformly in all serotypes of P. multocida. CONCLUSION This study's findings indicate the absence of OmpH and PlpE in the analyzed P. multocida B:2 strains, which are known surface antigens and provide protective immunity against P. multocida infection. The availability of additional genomic data on P. multocida B:2 strains from Pakistan will facilitate the development of localized therapeutic agents and rapid diagnostic tools specifically targeting HS-associated P. multocida B:2 strains.
Collapse
Affiliation(s)
- Sadia Mahboob
- Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, 38000, Punjab, Pakistan
| | - Nimat Ullah
- Atta-Ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, 44000, Pakistan
| | | | - Waqar Rauf
- Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, 38000, Punjab, Pakistan
| | - Mazhar Iqbal
- Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, 38000, Punjab, Pakistan.
| | - Amjad Ali
- Atta-Ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology (NUST), Islamabad, 44000, Pakistan.
| | - Moazur Rahman
- Health Biotechnology Division, National Institute for Biotechnology and Genetic Engineering College, Pakistan Institute of Engineering and Applied Sciences (NIBGE-C, PIEAS), Faisalabad, 38000, Punjab, Pakistan.
- School of Biological Sciences, University of the Punjab, Lahore, 54590, Pakistan.
- Centre of Excellence in Molecular Biology, University of the Punjab, Lahore, 53700, Pakistan.
| |
Collapse
|
4
|
Campler MR, Hashish A, Ghanem M, El-Gazzar MM, Arruda AG. Space-Time Patterns of Poultry Pathogens in the USA: A Case Study of Ornithobacterium rhinotracheale and Pasteurella multocida in Turkey Populations. Pathogens 2023; 12:1004. [PMID: 37623964 PMCID: PMC10460037 DOI: 10.3390/pathogens12081004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/27/2023] [Accepted: 07/28/2023] [Indexed: 08/26/2023] Open
Abstract
Respiratory infections caused by Ornithobacterium rhinotrachealis (ORT) and Pasteurella multocida (PM) bacteria are significant threats to the poultry industry by causing economic losses and welfare issues. Due to characterization difficulties and underutilization of epidemiological tools, description of the spatio-temporal spread of these diseases in the field is limited. The objectives of this retrospective observational cross-sectional study were to (a) investigate the existence of space-time clusters (hotspots); and (b) investigate the association between genetic similarity and spatial proximity for both pathogens using molecular typing and a recently developed Core-Genome Multilocus Sequencing Typing (cgMLST) scheme. ORT (n = 103) and PM (n = 69) isolates from confirmed disease outbreaks from one commercial company between 2013 and 2021 were obtained from a veterinary diagnostic laboratory, characterized using a cgMLST scheme and visualized using a minimum spanning tree. Spatio-temporal cluster analysis using SaTScanTM and a Spearman's rank correlation were performed to investigate clustering and any association between allelic diversity and geospatial distance. The cgMLST sequencing revealed three allelic clusters for ORT and thirteen clusters for PM. The spatio-temporal analysis revealed two significant clusters for PM, one with a 259.3 km cluster containing six cases between May and July 2018 and a 9 km cluster containing five cases between February 2019 and February 2021. No spatio-temporal clusters were found for ORT. A weak negative correlation between allelic diversity and geospatial distance was observed for ORT (r = -0.04, p < 0.01) and a weak positive correlation was observed for PM (r = 0.11, p < 0.01). This study revealed regional spatio-temporal clusters for PM in commercial turkey sites between 2018 and 2021 and provided additional insight into bacterial strain subgroups and the geographical spread of ORT and PM over time.
Collapse
Affiliation(s)
- Magnus R. Campler
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA;
| | - Amro Hashish
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA; (A.H.); (M.M.E.-G.)
| | - Mostafa Ghanem
- Department of Veterinary Medicine, College of Veterinary Medicine, University of Maryland, College Park, MD 20740, USA;
| | - Mohamed M. El-Gazzar
- Department of Veterinary Diagnostic and Production Animal Medicine, College of Veterinary Medicine, Iowa State University, Ames, IA 50011, USA; (A.H.); (M.M.E.-G.)
| | - Andréia G. Arruda
- Department of Veterinary Preventive Medicine, College of Veterinary Medicine, The Ohio State University, Columbus, OH 43210, USA;
| |
Collapse
|
5
|
Domínguez-Odio A, Delgado DLC. Global commercialization and research of veterinary vaccines against Pasteurella multocida: 2015-2022 technological surveillance. Vet World 2023; 16:946-956. [PMID: 37576757 PMCID: PMC10420726 DOI: 10.14202/vetworld.2023.946-956] [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: 09/16/2022] [Accepted: 03/31/2023] [Indexed: 08/15/2023] Open
Abstract
Background and Aim Pasteurella multocida can infect a multitude of wild and domesticated animals, bacterial vaccines have become a crucial tool in combating antimicrobial resistance (AMR) in animal production. The study aimed to evaluate the current status and scientific trends related to veterinary vaccines against Pasteurella multocida during the 2015-2022 period. Material and Methods The characteristics of globally marketed vaccines were investigated based on the official websites of 22 pharmaceutical companies. VOSviewer® 1.6.18 was used to visualize networks of coauthorship and cooccurrence of keywords from papers published in English and available in Scopus. Results Current commercial vaccines are mostly inactivated (81.7%), adjuvanted in aluminum hydroxide (57.8%), and designed to immunize cattle (33.0%). Investigational vaccines prioritize the inclusion of attenuated strains, peptide fragments, recombinant proteins, DNA as antigens, aluminum compounds as adjuvants and poultry as the target species. Conclusion Despite advances in genetic engineering and biotechnology, there will be no changes in the commercial dominance of inactivated and aluminum hydroxide-adjuvanted vaccines in the short term (3-5 years). The future prospects for bacterial vaccines in animal production are promising, with advancements in vaccine formulation and genetic engineering, they have the potential to improve the sustainability of the industry. It is necessary to continue with the studies to improve the efficacy of the vaccines and their availability.
Collapse
Affiliation(s)
- Aníbal Domínguez-Odio
- Dirección de Ciencia e Innovación. Grupo Empresarial LABIOFAM. Avenida Independencia km 16½, Boyeros, La Habana, Cuba
| | - Daniel Leonardo Cala Delgado
- Animal Science Research Group, Universidad Cooperativa de Colombia, Sede Bucaramanga, Carrera 33 N°, 30ª-05 (4.162,49 km) 68000, Bucaramanga, Colombia
| |
Collapse
|
6
|
Cull CA, Singu VK, Bromm JJ, Lechtenberg KF, Amachawadi RG, Cull BJ. Effects of Core Antigen Bacterin with an Immunostimulant on Piglet Health and Performance Outcomes When Challenged with Enteric and Respiratory Pathogens. Antibiotics (Basel) 2023; 12:599. [PMID: 36978466 PMCID: PMC10045215 DOI: 10.3390/antibiotics12030599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/07/2023] [Accepted: 03/15/2023] [Indexed: 03/19/2023] Open
Abstract
A total of 90 pigs, approximately one day of age, were used in a 42-day study to evaluate whether Endovac-Porci, a core antigen vaccine with an immunostimulant, provides piglets with broad-spectrum protection against the enteric and respiratory effects of Gram-negative bacteria. This study was a single-site, randomized, prospective, blinded, comparative placebo-controlled design. Individual pigs were randomly allocated to 1 of 2 treatments in a randomized design. An individual pig was considered the experimental unit for the farrowing phase (Study day 0 to 21), and the pen was considered the experimental unit for the nursery phase (Study day 21 to 42). Thus, there were 45 replications per treatment during the farrowing phase and 15 replications per treatment during the nursery phase. Treatments included a control product (saline; CP) and an investigational product (Endovac-Porci; IVP). On Study day 23, all pigs were challenged with enterotoxigenic Escherichia coli strain expressing K88 (F4) fimbriae and Pasteurella multocida. Individual pigs were weighed and feed consumption was measured to determine body weight gain, average daily gain, and feed-to-gain ratio. Clinical and fecal scores and overall health were recorded daily. Overall, administering the IVP to pigs led to an increase (p < 0.01) in body weight gain and average daily gain compared to pigs administered the CP. Pigs administered the IVP had reduced (p < 0.01) mortality compared to pigs administered the CP. There was a Study day × treatment interaction on clinical and fecal scores (p < 0.01). There was also a main effect of Study day where clinical and fecal scores increased (p < 0.01) as the Study day increased. Treatment also had an effect on clinical and fecal scores, where pigs administered the IVP had lower (p < 0.01) clinical and fecal scores compared to pigs administered the CP. In conclusion, administering pigs with the Endovac-Porci vaccination significantly improved the performance (i.e., body weight, body weight gain, and average daily gain) and health (i.e., clinical and fecal scores), while reducing the overall mortality in pigs challenged with E. coli K88 orally and Pasteurella multocida intranasally post-weaning. Results from this study suggest that Endovac-Porci could provide broad-spectrum protection against enteric and respiratory effects of Gram-negative bacteria in piglets.
Collapse
Affiliation(s)
- Charley A. Cull
- Midwest Veterinary Services, Inc., Oakland, NE 68045, USA; (V.K.S.); (J.J.B.); (K.F.L.); (B.J.C.)
- Central States Research Centre, Inc., Oakland, NE 68045, USA
| | - Vijay K. Singu
- Midwest Veterinary Services, Inc., Oakland, NE 68045, USA; (V.K.S.); (J.J.B.); (K.F.L.); (B.J.C.)
- Central States Research Centre, Inc., Oakland, NE 68045, USA
| | - Jenna J. Bromm
- Midwest Veterinary Services, Inc., Oakland, NE 68045, USA; (V.K.S.); (J.J.B.); (K.F.L.); (B.J.C.)
- Central States Research Centre, Inc., Oakland, NE 68045, USA
| | - Kelly F. Lechtenberg
- Midwest Veterinary Services, Inc., Oakland, NE 68045, USA; (V.K.S.); (J.J.B.); (K.F.L.); (B.J.C.)
- Central States Research Centre, Inc., Oakland, NE 68045, USA
| | - Raghavendra G. Amachawadi
- Department of Clinical Sciences, College of Veterinary Medicine, Kansas State University, Manhattan, KS 66506, USA;
| | - Brooke J. Cull
- Midwest Veterinary Services, Inc., Oakland, NE 68045, USA; (V.K.S.); (J.J.B.); (K.F.L.); (B.J.C.)
- Central States Research Centre, Inc., Oakland, NE 68045, USA
| |
Collapse
|
7
|
Desem MI, Handharyani E, Setiyono A, Safika S, Subekti DT, Ekawasti F. Morphology, Biochemical, and Molecular Characterization of Pasteurella multocida Causing Hemorrhagic Septicemia in Indonesia. Vet Med Int 2023; 2023:7778707. [PMID: 36941952 PMCID: PMC10024624 DOI: 10.1155/2023/7778707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 03/03/2023] [Accepted: 03/04/2023] [Indexed: 03/16/2023] Open
Abstract
Pasteurella multocida is a Gram-negative bacterium that causes hemorrhagic septicemia (HS) in buffaloes and cattle. The disease causes serious problems in Indonesian livestock and is classified as a serious transmissible animal disease. Previous research has determined the diversity of P. multocida using a serotyping method based on the antigenic properties of capsule polysaccharides. An alternative method for analysis utilizes sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and random amplified polymorphic DNA (RAPD). This study aimed to characterize and determine P. multocida diversity in several regions of Indonesia based on phenotypic character, protein profile, and the band pattern of RAPD results. Bacterial identification was performed using traditional biochemical techniques and API® 20NE systems and then confirmed molecularly using polymerase chain reaction (PCR). The freeze-thawing technique was performed to obtain the bacterial protein extract, and DNA extraction was executed using DNAzol. The extracted protein and RAPD product were then electrophoresed on 12% polyacrylamide gel and 1.5% agarose gel, respectively. The results indicate that the molecular weight range of the protein bands is 12-209 kDa, and the band pattern of the RAPD results ranged from 307-3,100 bp. Based on phenotypical analysis, P. multocida from South Sulawesi Province exhibited a variety of growth characteristics in MacConkey agar media. Using the hierarchical clustering analysis of the band patterns of RAPD and the whole-cell protein profiles, four and five clusters were formed, respectively. These results indicate molecular diversity among P. multocida from several regions of Indonesia.
Collapse
Affiliation(s)
- Muhammad Ibrahim Desem
- 1National Research and Innovation Agency, Jakarta Pusat 10340, Indonesia
- 2Graduate School of Veterinary Medicine and Biomedicine, Bogor Agricultural University, Bogor 16880, Indonesia
| | - Ekowati Handharyani
- 3Department of Clinic, Reproduction and Pathology, School of Veterinary Medicine and Biomedicine, Bogor Agricultural University, Bogor 16880, Indonesia
| | - Agus Setiyono
- 3Department of Clinic, Reproduction and Pathology, School of Veterinary Medicine and Biomedicine, Bogor Agricultural University, Bogor 16880, Indonesia
| | - Safika Safika
- 4Department of Animal Disease and Animal Public Health, School of Veterinary Medicine and Biomedicine, Bogor Agricultural University, Bogor 16880, Indonesia
| | - Didik Tulus Subekti
- 5Center for Biomedical Research, National Research and Innovation Agency, Bogor 16911, Indonesia
| | - Fitrine Ekawasti
- 1National Research and Innovation Agency, Jakarta Pusat 10340, Indonesia
| |
Collapse
|
8
|
Efficacy Evaluation of a Combined Hemorrhagic Septicemia-Mastitis Vaccine in Dairy Cows and Buffaloes. Animals (Basel) 2022; 12:ani12060706. [PMID: 35327103 PMCID: PMC8944738 DOI: 10.3390/ani12060706] [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: 12/28/2021] [Revised: 03/07/2022] [Accepted: 03/08/2022] [Indexed: 12/04/2022] Open
Abstract
Hemorrhagic septicemia (HS) and mastitis caused by Pasteurella (P.) multocida, Staphylococcus (S.) aureus and Streptococcus (Str.) agalactiae are important ailments of the dairy industry especially in South Asia. The present study evaluates the efficacy of a locally prepared hemorrhagic septicemia (HS) and mastitis combined vaccine. To this end, a total of 70 HS, S. aureus and Str. agalactiae-free lactating (early stage of lactation) buffaloes (n = 45) and cows (n = 25), and 50 lactating (early stage of lactation) cows (n = 25) and buffaloes (n = 25) positive for S. aureus/Str. agalactiae were subjected to two doses of HS−mastitis combined vaccine with an interval of 21 days. Antibody response was monitored by ELISA up to six months (180 days). Antibody titers against HS and mastitis were significantly (p ˂ 0.05) higher in vaccinated groups as compared to the non-vaccinated groups. Cumulative mean somatic cell counts and mastitis severity scores in vaccinated groups were significantly lower (p < 0.05), and milk yield was significantly higher (p < 0.05) than those in the respective non-vaccinated controls. In conclusion, Montanide®-adjuvanted HS−mastitis combined vaccine showed significant immunogenic effects in dairy cows and buffaloes. However, challenge studies remain overdue.
Collapse
|