George Mutwiri

Summary

Affiliation: University of Saskatchewan
Country: Canada

Publications

  1. ncbi Approaches to enhancing immune responses stimulated by CpG oligodeoxynucleotides
    George Mutwiri
    Vaccine and Infectious Disease Organization International Vaccine Center, University of Saskatchewan, SK, Canada
    Adv Drug Deliv Rev 61:226-32. 2009
  2. ncbi Co-administration of polyphosphazenes with CpG oligodeoxynucleotides strongly enhances immune responses in mice immunized with Hepatitis B virus surface antigen
    George Mutwiri
    Vaccine and Infectious Disease Organization International Vaccine Center, 120 Veterinary Road, Saskatoon, Sask, Canada S7N 5E3
    Vaccine 26:2680-8. 2008
  3. ncbi Microparticles for oral delivery of vaccines
    George Mutwiri
    Vaccine and Infectious Disease Organization, Saskatoon, Canada
    Expert Opin Drug Deliv 2:791-806. 2005
  4. ncbi Combination adjuvants: the next generation of adjuvants?
    George Mutwiri
    Vaccines and Infectious Disease Organization International Vaccine Center, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5E3, Canada
    Expert Rev Vaccines 10:95-107. 2011
  5. ncbi Poly[di(sodium carboxylatoethylphenoxy)phosphazene] (PCEP) is a potent enhancer of mixed Th1/Th2 immune responses in mice immunized with influenza virus antigens
    George Mutwiri
    Vaccine and Infectious Disease Organization, 120 Veterinary Road, Saskatoon, SK, Canada S7N 5E3
    Vaccine 25:1204-13. 2007
  6. ncbi PCEP enhances IgA mucosal immune responses in mice following different immunization routes with influenza virus antigens
    Nelson F Eng
    Vaccine and Infectious Disease Organization International Vaccine Center, University of Saskatchewan, 120 Veterinary Road, Saskatoon, Saskatchewan, S7N 5E3, Canada
    J Immune Based Ther Vaccines 8:4. 2010
  7. ncbi Intranasal immunization of mice with a formalin-inactivated bovine respiratory syncytial virus vaccine co-formulated with CpG oligodeoxynucleotides and polyphosphazenes results in enhanced protection
    John W Mapletoft
    Vaccine and Infectious Disease Organization, University of Saskatchewan, 120 Veterinary Road, Saskatoon, SK S7N 5E3, Canada
    J Gen Virol 89:250-60. 2008
  8. ncbi All three classes of CpG ODNs up-regulate IP-10 gene in pigs
    Arshud Dar
    Vaccine and Infectious Disease Organization, University of Saskatchewan, 120 Veterinary Road, Saskatoon, SK, Canada
    Res Vet Sci 88:242-50. 2010
  9. ncbi Strategies to link innate and adaptive immunity when designing vaccine adjuvants
    Srinivas Garlapati
    Vaccine and Infectious Disease Organization, Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada
    Vet Immunol Immunopathol 128:184-91. 2009
  10. ncbi Protection of neonatal broiler chicks against Salmonella Typhimurium septicemia by DNA containing CpG motifs
    Azita Taghavi
    Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4, Canada
    Avian Dis 52:398-406. 2008

Collaborators

Detail Information

Publications19

  1. ncbi Approaches to enhancing immune responses stimulated by CpG oligodeoxynucleotides
    George Mutwiri
    Vaccine and Infectious Disease Organization International Vaccine Center, University of Saskatchewan, SK, Canada
    Adv Drug Deliv Rev 61:226-32. 2009
    ..We will discuss these approaches and the mechanisms involved, with emphasis on what we have learned from large animal models...
  2. ncbi Co-administration of polyphosphazenes with CpG oligodeoxynucleotides strongly enhances immune responses in mice immunized with Hepatitis B virus surface antigen
    George Mutwiri
    Vaccine and Infectious Disease Organization International Vaccine Center, 120 Veterinary Road, Saskatoon, Sask, Canada S7N 5E3
    Vaccine 26:2680-8. 2008
    ..In addition, we provide evidence that PCEP and PCPP can stimulate innate cytokine production, suggesting a potential mechanism by which polyphosphazenes achieve their potent adjuvant effects...
  3. ncbi Microparticles for oral delivery of vaccines
    George Mutwiri
    Vaccine and Infectious Disease Organization, Saskatoon, Canada
    Expert Opin Drug Deliv 2:791-806. 2005
    ..In addition, possible approaches that have the potential to significantly improve microparticle delivery of oral vaccines will be suggested...
  4. ncbi Combination adjuvants: the next generation of adjuvants?
    George Mutwiri
    Vaccines and Infectious Disease Organization International Vaccine Center, University of Saskatchewan, Saskatoon, Saskatchewan, S7N 5E3, Canada
    Expert Rev Vaccines 10:95-107. 2011
    ..This approach is promising and presents tremendous opportunities for vaccinologists to tailor immune responses to specific vaccines. In this article, adjuvant combinations at different stages of development will be reviewed...
  5. ncbi Poly[di(sodium carboxylatoethylphenoxy)phosphazene] (PCEP) is a potent enhancer of mixed Th1/Th2 immune responses in mice immunized with influenza virus antigens
    George Mutwiri
    Vaccine and Infectious Disease Organization, 120 Veterinary Road, Saskatoon, SK, Canada S7N 5E3
    Vaccine 25:1204-13. 2007
    ..In contrast, PCEP was associated with production of both IFNgamma and IL-4. We conclude that PCEP is a potent enhancer of antigen-specific Th1 and Th2 immune responses and is a promising adjuvant for vaccine applications...
  6. ncbi PCEP enhances IgA mucosal immune responses in mice following different immunization routes with influenza virus antigens
    Nelson F Eng
    Vaccine and Infectious Disease Organization International Vaccine Center, University of Saskatchewan, 120 Veterinary Road, Saskatoon, Saskatchewan, S7N 5E3, Canada
    J Immune Based Ther Vaccines 8:4. 2010
    ..The objective of the present study was to investigate the efficacy of polyphosphazenes as adjuvants when delivered through different routes of vaccine administration...
  7. ncbi Intranasal immunization of mice with a formalin-inactivated bovine respiratory syncytial virus vaccine co-formulated with CpG oligodeoxynucleotides and polyphosphazenes results in enhanced protection
    John W Mapletoft
    Vaccine and Infectious Disease Organization, University of Saskatchewan, 120 Veterinary Road, Saskatoon, SK S7N 5E3, Canada
    J Gen Virol 89:250-60. 2008
    ..Co-formulation of CpG ODN and PP is a promising new vaccine platform technology that may have applications in mucosal immunization in humans...
  8. ncbi All three classes of CpG ODNs up-regulate IP-10 gene in pigs
    Arshud Dar
    Vaccine and Infectious Disease Organization, University of Saskatchewan, 120 Veterinary Road, Saskatoon, SK, Canada
    Res Vet Sci 88:242-50. 2010
    ..These in vitro and in vivo observations suggest that interferon-gamma inducible protein 10 (IP-10) may be a reliable biomarker for immune activity induced by CpG ODNs in pigs...
  9. ncbi Strategies to link innate and adaptive immunity when designing vaccine adjuvants
    Srinivas Garlapati
    Vaccine and Infectious Disease Organization, Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Canada
    Vet Immunol Immunopathol 128:184-91. 2009
    ..Using a neonatal pig model for pertussis, we are currently analyzing the effectiveness of host defence peptides (HDPs), bacterial DNA and polyphosphazenes as vaccine adjuvants...
  10. ncbi Protection of neonatal broiler chicks against Salmonella Typhimurium septicemia by DNA containing CpG motifs
    Azita Taghavi
    Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4, Canada
    Avian Dis 52:398-406. 2008
    ..This is the first time that CpG-ODN has been demonstrated to have an immunoprotective effect against an intracellular bacterial infection in neonatal broiler chickens following in ovo delivery...
  11. ncbi Enhancement of immunoprotective effect of CpG-ODN by formulation with polyphosphazenes against E. coli septicemia in neonatal chickens
    Azita Taghavi
    Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK, Canada S7N 5B4
    Curr Drug Deliv 6:76-82. 2009
    ..This is the first time that CpG-ODN formulated with polyphosphazene has been demonstrated to have an immunoprotective effect against an extra cellular bacterial infection in neonatal broiler chickens following in ovo delivery...
  12. ncbi Bovine toll-like receptor 9: a comparative analysis of molecular structure, function and expression
    Philip J Griebel
    Vaccine and Infectious Disease Organization, 120 Veterinary Road, Saskatoon, Sask, Canada S7N 5E3
    Vet Immunol Immunopathol 108:11-6. 2005
    ..Collectively, these analyses revealed substantial conservation of TLR9 structure and TLR9 function in blood leukocytes of humans, cattle and other domestic species...
  13. ncbi Pathotypic and molecular characterization of a fowl adenovirus associated with inclusion body hepatitis in Saskatchewan chickens
    Arshud Dar
    Vaccine and Infectious Disease Organization, 120 Veterinary Road, University of Saskatchewan, Saskatoon, SK, Canada S7N 5E3
    Avian Dis 56:73-81. 2012
    ....
  14. ncbi CpG oligodeoxynucleotides activate innate immune response that suppresses infectious bronchitis virus replication in chicken embryos
    Arshud Dar
    Vaccine and Infectious Disease Organization, University of Saskatchewan, 120 Veterinary Road, Saskatoon, Saskatchewan, Canada S7N 5E3
    Avian Dis 53:261-7. 2009
    ....
  15. ncbi Oligodeoxynucleotides containing CpG motifs (CpG-ODN) predominantly induce Th1-type immune response in neonatal chicks
    Bhavini A Patel
    Department of Veterinary Pathology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
    Dev Comp Immunol 32:1041-9. 2008
    ..To our knowledge, this is the first report evaluating the induction of cytokines/chemokines in neonatal chicks following administration of CpG-ODN...
  16. ncbi Immunogenicity of a receptor-binding domain of SARS coronavirus spike protein in mice: implications for a subunit vaccine
    Alexander N Zakhartchouk
    Vaccine and Infectious Disease Organization VIDO, University of Saskatchewan, 120 Veterinary Road, Saskatoon, Sask, Canada S7N 5E3
    Vaccine 25:136-43. 2007
    ..This finding suggests that carbohydrate is important for the immunogenicity of the S318-510 protein fragment and provide useful information for designing an effective and safe SARS subunit vaccine...
  17. ncbi CpG oligodeoxynucleotide induction of antiviral effector molecules in sheep
    Anil K Nichani
    Vaccine and Infectious Disease Organization, University of Saskatchewan, Saskatoon, Saskatchewan, Canada S7N 5E3
    Cell Immunol 227:24-37. 2004
    ..These observations support the conclusion that localized cell recruitment and activation contribute to CpG ODN induction of antiviral effector molecules, such as interferon and 2'5'-A synthetase...
  18. ncbi Response of calves to challenge exposure with virulent bovine respiratory syncytial virus following intranasal administration of vaccines formulated for parenteral administration
    John Ellis
    Department of Veterinary Microbiology, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4, Canada
    J Am Vet Med Assoc 230:233-43. 2007
    ....
  19. ncbi The potential of polyphosphazenes for delivery of vaccine antigens and immunotherapeutic agents
    Nelson F Eng
    Vaccine and Infectious Disease Organization International Vaccine Center, University of Saskatchewan, Saskatchewan, Canada
    Curr Drug Deliv 7:13-20. 2010
    ..Further research and development of polyphosphazene adjuvants is warranted to fully explore their potential in the delivery of vaccines and immunotherapeutic agents...