Laura J. Knoll

- Professor, Dept. Medical Microbiology & Immunology, UW-Madison
- 1550 Linden Drive
- ljknoll@wisc.edu
- Department Website
Research Focus
Our research centers on studying the host/pathogen interactions of the intracellular parasite Toxoplasma gondii. T. gondii is well known for causing encephalitis in immunocompromised patients and is a member of the coccidian family of parasites that include Plasmodium (causative agent of malaria) and Cryptosporidium (causative agent of diarrhea). My laboratory uses the latest technologies, including next generation sequencing and mass spectrometry, to uncover the parasite and host genes that are necessary for the establishment and maintenance of chronic infection in animals. We then use biochemistry, molecular and cell biology to define the how and why these pathogen and host genes are important.Recent Publications
Katie M Cataldo, Nicole M Davis, Laura J Knoll 2026. Kinase inhibitors in organoid media influence Toxoplasma gondii growth and development. Microbiology spectrum
Billy J Erazo, Laura J Knoll 2025. Induced necroptosis limits Toxoplasma gondii replication in a RIPK3/MLKL-dependent manner. Infection and immunity
Billy J Erazo Flores, Laura J Knoll 2025. Toxoplasma gondii at the Host Interface: Immune Modulation and Translational Strategies for Infection Control. Vaccines
Nicole D Hryckowian, Katelyn Studener, Waneska S Frizzarini, David Arranz-Solís, Roberto Sánchez-Sánchez, Laura J Knoll 2025. Fibroblasts enhance the growth and survival of adult feline small intestinal organoids. mSphere
Steven V John, Gretchen L Seim, Billy J Erazo-Flores, James A Votava, Uzziah S Urquiza, Nicholas L Arp, John Steill, Jack Freeman, Lauren N Carnevale, Isaiah Roberts, Xin Qing, Stuart A Lipton, Ron Stewart, Laura J Knoll, Jing Fan 2025. Classically activated macrophages undergo functionally significant nucleotide metabolism remodelling driven by nitric oxide. Nature metabolism
James R Alvin, Carlos J Ramírez-Flores, Caitlin A Mendina, Anjon Audhya, Laura J Knoll, Molly M Lettman 2025. Toxoplasmosis accelerates the progression of hereditary spastic paraplegia. mSphere
Rodrigo A Montoro, Michael Moran, Katherine A Overmyer, Andrew Periaccante, Joshua J Coon, Swapnil Lanjewar, Laura J Knoll, Rob Striker 2025. Fatal toxoplasmic encephalitis triggered by anti-TNF therapy. Heliyon
Carlos J Ramírez-Flores, Nicole D Hryckowian, Andrew N Gale, Kehinde Adebayo Babatunde, Marcos Lares, David J Beebe, Sheena C Kerr, Laura J Knoll 2025. Modeling Toxoplasma gondii-gut early interactions using a human microphysiological system. PLoS neglected tropical diseases
Laura M Alexander, Saima Khalid, Gina M Gallego-Lopez, Theresa J Astmann, Jee-Hwan Oh, Mark Heggen, Phil Huss, Renee Fisher, Amitava Mukherjee, Srivatsan Raman, In Young Choi, Morgan N Smith, Claude J Rogers, Michael W Epperly, Laura J Knoll, Joel S Greenberger, Jan-Peter van Pijkeren 2024. Development of a Limosilactobacillus reuteri therapeutic delivery platform with reduced colonization potential. Applied and environmental microbiology
Nicole D Hryckowian, Carlos J Ramírez-Flores, Caitlin Zinda, Sung Chul Park, Martin T Kelty, Laura J Knoll 2024. Host cell-specific metabolism of linoleic acid controls Toxoplasma gondii growth in cell culture. Infection and immunity