Saul Tzipori

Saul Tzipori
Distinguished Professor of Microbiology and Infectious Diseases
Agnes Varis University Chair in Science and Society
Chair, Department of Infectious Disease and Global Health
Infectious Disease, Enteric Infections and Host Response

Campus Phone:
508-839-7955

Fax:
508-839-7977

Education

  • FRCVS - Fellow Royal College of Veterinary Surgeons, London - 1990
  • DSc - University of Melbourne, Australia - 1985
  • Ph.D. - University of Queensland, Australia - 1974
  • DVM - (BVSc) - University of Queensland, Australia - 1970

A tetraspecific VHH-based neutralizing antibody modifies disease outcome in three animal models of clostridium difficile infection

Author(s):Schmidt, D.J. | Beamer, G. | Tremblay, J.M. | Steele, J.A. | Kim, H.B. | Wang, Y. | Debatis, M. | Sun, X. | Kashentseva, E.A. | Dmitriev, I.P. | Curiel, D.T. | Shoemaker, C.B. | Tzipori, S.
Publication year: 2016
Journal / Book title: Clinical and Vaccine Immunology

Development of SYN-004, an oral beta-lactamase treatment to protect the gut microbiome from antibiotic-mediated damage and prevent Clostridium difficile infection

Author(s):Kaleko, M. | Bristol, J.A. | Hubert, S. | Parsley, T. | Widmer, G. | Tzipori, S. | Subramanian, P. | Hasan, N. | Koski, P. | Kokai-Kun, J. | Sliman, J. | Jones, A. | Connelly, S.
Publication year: 2016
Journal / Book title: Anaerobe

Continuous culture of Cryptosporidium parvum using hollow fiber technology

Author(s):Morada, M. | Lee, S. | Gunther-Cummins, L. | Weiss, L.M. | Widmer, G. | Tzipori, S. | Yarlett, N.
Publication year: 2016
Journal / Book title: International Journal for Parasitology

Effects of surotomycin on Clostridium difficile viability and toxin production in vitro

Author(s):Bouillaut, L. | McBride, S. | Sorg, J.A. | Schmidt, D.J. | Suarez, J.M. | Tzipori, S. | Mascio, C. | Chesnel, L. | Sonenshein, A.L.
Publication year: 2015
Journal / Book title: Antimicrobial Agents and Chemotherapy

Hyperimmune bovine colostrum as a novel therapy to combat clostridium difficile infection

Author(s):Sponseller, J.K. | Steele, J.A. | Schmidt, D.J. | Kim, H.B. | Beamer, G. | Sun, X. | Tzipori, S.
Publication year: 2015
Journal / Book title: Journal of Infectious Diseases

Cryptosporidium muris: Infectivity and illness in healthy adult volunteers

Author(s):Chappell, C.L. | Okhuysen, P.C. | Langer-Curry, R.C. | Lupo, P.J. | Widmer, G. | Tzipori, S.
Publication year: 2015
Journal / Book title: American Journal of Tropical Medicine and Hygiene

A chimeric protein comprising the glucosyltransferase and cysteine proteinase domains of toxin b and the receptor binding domain of toxin a induces protective immunity against Clostridium Difficile infection in mice and hamsters

Author(s):Wang, Y.-K. | Yan, Y.-X. | Kim, H.B. | Ju, X. | Zhao, S. | Zhang, K. | Tzipori, S. | Sun, X.
Publication year: 2015
Journal / Book title: Human Vaccines and Immunotherapeutics

Commensal Streptococcus mitis is a unique vector for oral mucosal vaccination

Author(s):Daifalla, N. | Cayabyab, M.J. | Xie, E. | Kim, H.B. | Tzipori, S. | Stashenko, P. | Duncan, M. | Campos-Neto, A.
Publication year: 2015
Journal / Book title: Microbes and Infection

Adenovirus vector expressing Stx1/Stx2-neutralizing agent protects piglets infected with Escherichia coli O157: H7 against fatal systemic intoxication

Author(s):Sheoran, A.S. | Dmitriev, I.P. | Kashentseva, E.A. | Cohen, O. | Mukherjee, J. | Debatis, M. | Shearer, J. | Tremblay, J.M. | Beamer, G. | Curiel, D.T. | Shoemaker, C.B. | Tzipori, S.
Publication year: 2015
Journal / Book title: Infection and Immunity

Immune-based treatment and prevention of Clostridium difficile infection

Author(s):Zhao, S. | Ghose-Paul, C. | Zhang, K. | Tzipori, S. | Sun, X.
Publication year: 2014
Journal / Book title: Human Vaccines and Immunotherapeutics

Systemically administered IgG anti-toxin antibodies protect the colonic mucosa during infection with Clostridium difficilein the piglet model

Author(s):Cohen, O.R. | Steele, J.A. | Zhang, Q. | Schmidt, D.J. | Wang, Y. | Hamel, P.E.S. | Beamer, G. | Xu, B. | Tzipori, S.
Publication year: 2014
Journal / Book title: PLoS ONE

The immune response of two microbial antigens delivered intradermally, sublingually, or the combination thereof

Author(s):Lee, S. | Picking, W.L. | Tzipori, S.
Publication year: 2014
Journal / Book title: Microbes and Infection

The immune response of two microbial antigens delivered intradermally, sublingually, or the combination thereof

Author(s):Lee, S. | Picking, W.L. | Tzipori, S.
Publication year: 2014
Journal / Book title: Microbes and Infection

Selective evolution of ligands by exponential enrichment to identify rna aptamers against shiga toxins

Author(s):Challa, S. | Tzipori, S. | Sheoran, A.
Publication year: 2014
Journal / Book title: Journal of Nucleic Acids

The roles of toxin A and toxin B in Clostridium difficile infection: insights from the gnotobiotic piglet model

Author(s):Steele, J. | Parry, N. | Tzipori, S.
Publication year: 2014
Journal / Book title: Gut microbes

The evolution of respiratory cryptosporidiosis: Evidence for transmission by inhalation

Author(s):Sponseller, J.K. | Griffiths, J.K. | Tzipori, S.
Publication year: 2014
Journal / Book title: Clinical Microbiology Reviews

Interaction of Cryptosporidium parvum with mouse dendritic cells leads to their activation and parasite transportation to mesenteric lymph nodes

Author(s):Perez-Cordon, G. | Yang, G. | Zhou, B. | Nie, W. | Li, S. | Shi, L. | Tzipori, S. | Feng, H.
Publication year: 2014
Journal / Book title: Pathogens and Disease

A single VHH-based toxin-neutralizing agent and an effector antibody protect mice against challenge with Shiga toxins 1 and 2.

Author(s):Tremblay, J.M. | Mukherjee, J. | Leysath, C.E. | Debatis, M. | Ofori, K. | Baldwin, K. | Boucher, C. | Peters, R. | Beamer, G. | Sheoran, A. | Bedenice, D. | Tzipori, S. | Shoemaker, C.B.
Publication year: 2013
Journal / Book title: Infection and immunity

The roles of toxin A and toxin B in Clostridium difficile infection: Insights from the gnotobiotic piglet model

Author(s):Steele, J. | Parry, N. | Tzipori, S.
Publication year: 2013
Journal / Book title: Gut Microbes

Frequent occurrence of mixed enterocytozoon bieneusi infections in humans

Author(s):Widmer, G. | Dilo, J. | Tumwine, J.K. | Tzipori, S. | Akiyoshi, D.E.
Publication year: 2013
Journal / Book title: Applied and Environmental Microbiology

General Research Interests

Enteric infections and the host response; this includes viral, bacterial and protozoan pathogens of veterinary and medical importance causing acute or chronic diarrhea in the immunocompetent or the immunodeficient host. In recent years investigations have focused specifically on:
  • The biology, pathogenesis, immunology, epidemiology, diagnosis, treatment, prevention and control of cryptosporidiosis and microsporidiosis in children from developing countries, and in individuals with HIV/AIDS.
  • Mechanisms of disease caused by Shiga-toxin producing E. coli(STEC), and development of therapy against the associated hemolytic uremic syndrome (HUS) - a complicating acute kidney failure in children.
  • Development of botulinum antitoxin therapy and control of intoxication in humans.
  • Development of strategies for identification, characterization and risk assessment of food and waterborne pathogens.
  • Development and preclinical evaluation of temperature-resistant and needle-free human vaccines for developing countries.
  • Clostridium difficile Disease: Investigations on the biology, pathogenesis, and development of therapy and vaccines.
  • Characterization of the human microbiome in the germfree pig model to investigate human gastrointestinal disorders.
  • Global health and RESPOND: a USAID sponsored project under EPT (Emerging Pandemic Threats).

Selected Research Projects

  • Respiratory cryptosporidiosis in Uganda.
  • Immune based therapy against hemolytic uremic syndrome caused by shiga-toxin producing E. coli.
  • Botulinum biology and development of antitoxin therapy.
  • Investigations on the infant and adult human microbiomes in the germfree piglet model.
  • Development and evaluation of Bacillus subtilis as a delivery system of temperature resistant and non-invasive vaccines.
  • Preclinical evaluation of enteric vaccines against shigellosis.
  • Clostridium difficile: studies on; a) vaccine development and methods of administration; b) development and evaluation of  antimicrobial agents; c) development and evaluation of immune-based therapeutics; d) development of animal models to investigate pathogenic mechanisms.
  • Development and use of a thigh mouse model to specifically test drugs against multidrug resistant bacteria.

Research Interests by Area

Infectious Diseases: Prevention and Control
  • Botulism antidotes and anti-toxins
  • Therapy for cryptosporidiosis, Vaccine delivery systems, Monoclonal antibodies to HUS prophylaxis, botulism antidote
Infectious Diseases: Genetics and Genomics
  • Cryptosporidium genome sequencing
Infectious Diseases: Pathogenesis/Host Response
  • Pathogenesis of cryptosporidium parvum, microsporidium, E. Coli O157