Generation of porcine Pasteurella multocida ghost vaccine and examination of its immunogenicity against virulent challenge in mice.

08:00 EDT 10th April 2019 | BioPortfolio

Summary of "Generation of porcine Pasteurella multocida ghost vaccine and examination of its immunogenicity against virulent challenge in mice."

Pasteurella multocida (PM) causes a varity of clinical manifestation in domestic animals, even acute death. Vaccination is among effective strategy to prevent and control PM-related diseases. Bacterial ghosts (BGs) are empty bacterial envelopes, which sustain subtle antigenic comformation in bacterial outer-membrane and exhibit higher efficacy compared to inactivated vaccines. Here, a BG vaccine generated from the porcine PM reference strain CVCC446 (serotype
2) was prepared upon lysis by E protein of bacteriophage PhiX174, and the safety and immunogenicity were evaluated its in a mouse model. Lysis rate was in 99.99% and the BG vaccine was completely inactivated by addition of freeze-dry procedure. Mice were immunized subcutaneously twice in 2-week intervals with BGs, or BGs plus adjuvant, or formalin-inactivated PM or an adjuvant control. Mice inoculated twice with BGs vaccines generated higher titer of antibodies, interleukin 4 and gamma interferon than those in the inactivated vaccine group or adjuvant placebo group (P < 0.05). CD4 and CD8 T lymphocyte levels in spleen were higher in both BG groups than inactivated vaccine group or adjuvant group. Mice administered with the BGs plus adjuvant were completely protected against intraperitoneal challenge with 10 × LD dose of virulent isolate and exhibited decreased tissue lesion and lower bacterial loads, which was superior to the inactivated vaccine. The results demonstrated safety of the BG vaccine and primary immunogenicity in a mouse model, suggesting a potential of further evaluation in a pig model and vaccine candidate.


Journal Details

This article was published in the following journal.

Name: Microbial pathogenesis
ISSN: 1096-1208


DeepDyve research library

PubMed Articles [8184 Associated PubMed Articles listed on BioPortfolio]

Characterization of host plasminogen exploitation of Pasteurella multocida.

Pasteurella multocida is the causative agent of a wide range of disease (pasteurellosis) and a zoonotic pathogen in humans. Some pathogenic bacteria are able to exploit host plasminogen for migration ...

The ABA392/pET30a protein of Pasteurella multocida provoked mucosal immunity against HS disease in a rat model.

Haemorrhagic septicaemia (HS) is a well-known high fatality septicaemic disease happening among bovines. The disease is caused by the Pasteurella multocida serotype B:2 bacteria. P. multocida B:2 has ...

LPS-PCR typing of ovine Pasteurella multocida isolates from Iran based on (L1 to L8) outer core biosynthesis loci.

Pasteurella multocida isa gram-negative bacterial pathogen that is causative agent of a wide range of diseases in many animal species and humans. Lipopolysaccharides (LPS) are an important virulence f...

In-vitro phagocytosis and intracellular killing of Pasteurella multocida B:2 by phagocytic cells of buffaloes.

Pasteurella multocida B:2 is a Gram-negative organism causing haemorrhagic septicaemia (HS) in buffaloes. It causes severe pulmonary infection, leading to infiltration of numerous macrophages and neut...

The composite biological adjuvants enhance immune response of porcine circovirus type2 vaccine.

The porcine circovirus (PCV) is one of the most economically important infection diseases of pigs. Granulocyte-macrophage colony-stimulating factor (GM-CSF) or Flic as an immune adjuvant has been show...

Clinical Trials [6545 Associated Clinical Trials listed on BioPortfolio]

Evaluation of Immunogenicity and Safety of Two Formulations of GSK Biologicals' Human Rotavirus (HRV) Vaccine (444563), in Healthy Infants Starting at Age 6-12 Weeks

The purpose of this study is to evaluate the clinical consistency of three production lots of the Porcine circovirus (PCV)-free liquid formulation of oral live attenuated human rotavirus (...

A Study to Evaluate the Reactogenicity, Safety, and Immunogenicity of the Third Generation Hepatitis B Vaccine

A single center, randomized, double blinded phase I/IIa exploratory study to evaluate reactogenicity, safety, immunogenicity and dose-response of a new hepatitis B vaccine in human adult

Safety and Immunogenicity in Dose-Ranging and Formulation-Finding Meningococcal B (MenB) Vaccine Study in 2-month-old Infants

This study is aimed at assessing the safety and immunogenicity of different doses and formulations of a new Novartis Meningococcal B Recombinant Vaccine.

Study Measuring the Safety, Immunogenicity and Lot Consistency of Cell Derived Influenza Vaccine

This phase 3 study is designed to obtain additional safety and immunogenicity data on Solvay's cell-derived seasonal trivalent subunit influenza vaccine in adult and elderly subjects witho...

Impact of Helminth Infections During Pregnancy on Humoral Vaccine Immunogenicity in Infants

Helminth infection is associated with low vaccine immunogenicity. Pregnant women are particularly sensitive to helminth infection. Since most vaccines are given shortly after birth, an ef...

Medical and Biotech [MESH] Definitions

A chronic, clinically mild, infectious pneumonia of PIGS caused by MYCOPLASMA HYOPNEUMONIAE. Ninety percent of swine herds worldwide are infected with this economically costly disease that primarily affects animals aged two to six months old. The disease can be associated with porcine respiratory disease complex. PASTEURELLA MULTOCIDA is often found as a secondary infection.

The capacity of VACCINES to stimulate the ADAPTIVE IMMUNE RESPONSE to produce antibodies and antigen-specific T-CELL responses.

Any of several bacterial diseases, usually caused by PASTEURELLA MULTOCIDA, marked by the presence of hemorrhagic areas in the subcutaneous tissues, serous membranes, muscles, lymph glands, and throughout the internal organs. The diseases primarily affect animals and rarely humans.

A species of gram-negative, facultatively anaerobic, rod-shaped bacteria normally found in the flora of the mouth and respiratory tract of animals and birds. It causes shipping fever (see PASTEURELLOSIS, PNEUMONIC); HEMORRHAGIC BACTEREMIA; and intestinal disease in animals. In humans, disease usually arises from a wound infection following a bite or scratch from domesticated animals.

A combined vaccine used to prevent infection with diphtheria and tetanus toxoid. This is used in place of DTP vaccine (DIPHTHERIA-TETANUS-PERTUSSIS VACCINE) when PERTUSSIS VACCINE is contraindicated.

Quick Search


DeepDyve research library

Relevant Topics

Public Health
Alternative Medicine Cleft Palate Complementary & Alternative Medicine Congenital Diseases Dentistry Ear Nose & Throat Food Safety Geriatrics Healthcare Hearing Medical Devices MRSA Muscular Dyst...

A vaccine is any preparation intended to produce immunity to a disease by stimulating the production of antibodies. It creates immunity but does not cause the disease. There are several differnt types of vaccine avalable; Killed microorganisms; which s...

Searches Linking to this Article