Corrie Detweiler
Associate Professor
Molecular Cellular and Developmental Biology

GOLD A145C

Education

Ph.D., University of California, San Francisco, 1998

Biography

Research Interests:
Host-Pathogen Interactions: How pathogenic bacteria evade and manipulate the mammalian immune system. Drug Discovery: Using basic science to identify and develop new antibacterials.

Research Profile:听
We identified a new niche for the bacterial pathogen,听Salmonella, during persistent infection.听Salmonella听resides both within and outside of cells to cause disease. With confocal microscopy, we showed that the bacteria lives in macrophages that have engulfed erythrocytes or leukocytes, called "hemophagocytic" macrophages (HMs). We developed a cell culture model of HMs and with it established that HMs are able to kill听E. coli听but not听Salmonella, that听Salmonella听acquires the essential nutrient iron from HMs, and that听Salmonella听stimulates macrophages to engulf erythrocytes to become HMs. In addition,听Salmonella-infected mice, like humans with typhoid fever, accumulate HMs. We also recently embarked on a complementary project to identify new antibacterial therapeutics.

Pilonieta MC, Moreland SM, English CN, Detweiler CS. Salmonella enterica infection stimulates macrophages to hemophagocytose.听MBio. 2014 Dec 9;5(6):e02211. doi:. PubMed PMID:听.

Nagy TA, Moreland SM, Detweiler CS. Salmonella acquires ferrous iron from haemophagocytic macrophages.听Mol Microbiol. 2014 Sep;93(6):1314-26. doi:听. Epub 2014 Aug 14. PubMed PMID:听; PubMed Central PMCID: PMC4160465.

McCoy MW, Moreland SM, Detweiler CS. Hemophagocytic macrophages in murine typhoid fever have an anti-inflammatory phenotype.听Infect Immun. 2012 Oct;80(10):3642-9. doi:听. Epub 2012 Aug 6. PubMed PMID:听; PubMed Central PMCID: PMC3457584.

Nix RN, Altschuler SE, Henson PM, Detweiler CS. Hemophagocytic macrophages harbor Salmonella enterica during persistent infection.听PLoS Pathog. 2007 Dec;3(12):e193. PubMed PMID:听; PubMed Central PMCID: PMC2134957.