The increasing burden of fungal disease in the world combined with the emergence of treatment resistant organisms is an alarming challenge to medicine and human health.
The Klein Research Group is a molecular medical mycology research group with two broad areas of focus: fungal pathogenesis and immunology.
Our primary research interest is the pathogen Blastomyces dermatitidis, a thermally dimorphic fungus endemic in Wisconsin and the Mississippi, Ohio, and Missouri river valleys. Blastomyces is a primary human pathogen and is a useful model for the other pathogenic dimorphic fungi such as Histoplasma capsulatum, Coccidioides immitis, Paracoccidioides brasiliensis, Sporothrix schenckii, and Penicillium marneffei, Blastomyces exists as a mold in the soil but transitions to a yeast form at 37°C. Infection occurs when the spore or mold form is inhaled to the lungs. Once in the lungs, transition from the spore to the yeast form is required for disease progression. We are interested in the molecular mechanisms that govern the transition of the mold to the yeast form with the goal of developing novel anti-fungal therapies.
In order to further address the burden of fungal disease, we have developed a vaccine strain of Blastomyces. Another focus of our research program is to understand the mechanism of vaccine-induced immunity to Blastomyces and other fungal pathogens. We investigate both the innate and adaptive response to Blastomyces using fungi that we have engineered to express model antigens. Furthermore, we examine the recognition of fungal surface components (such as the virulence factor BAD-1) by the innate immune system and examine the inflammatory consequences in the host. By understanding the immunological mechanism of vaccine-induced protection we aim to produce effective and long-lasting vaccines against fungal pathogens.
The multiple projects in the lab address common questions in pathogenesis and immunology: what are the mechanisms of fungal virulence, how does the host-pathogen interaction define the progression of infection and disease, how does the immune system respond to fungal infection, and what are the key immunological steps required for vaccine induced immunity to fungal pathogens?
- Mechanisms of phase transition in dimorphic fungi
- Mechanisms of vaccine induced immunity to fungi
- Innate and adaptive immune responses to fungi
- Characterization of host-pathogen interactions in fungal infections
- Targeted development of novel anti-fungal compounds
Bruce Klein granted second NIH MERIT award, continues investigation of pathological fungus in Wisconsin
In 1984, a new infectious disease fellow at the University of Wisconsin Medical School (as it was then called), Bruce Klein, MD, made his first visit to Eagle River, Wisconsin, leading a team of scientists …September 15, 2022
Lucas Dos Santos Dias, PhD, postdoctoral fellow, Infectious Diseases, received a two-year, $140,752 American Heart Association (AHA) postdoctoral fellowship for his proposal, “Vaccine prevention of cardiovascular fungal infections.” The project is co-sponsored by mentors Marcel Wüthrich, PhD, distinguished …September 7, 2021
Congratulations to Bruce Klein, MD, professor and division chief, Infectious Diseases, who recently received a two-year, $125,000 grant from the United States Fish and Wildlife Service for his project, “Develop an immune-based strategy to prevent and treat …July 21, 2021
Bruce Klein, MD, professor, Infectious Diseases, was recently awarded Catalyst Funding from the Canadian Institute for Advanced Research, in collaboration with program members David Blehert, PhD, United States Geographical Survey, and Don Sheppard, MD, McGill …March 2, 2021
Al Dhaheri N, Wu N, Zhao S, Wu Z, Blank RD, Zhang J, Raggio C, Halanski M, Shen J, Noonan K, Qiu G, Nemeth B, Sund S, Dunwoodie SL, Chapman G, Glurich I, Steiner RD, Wohler …June 24, 2020
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