Higgins Hall 428
Telephone: 617-552-8722
Email: marcjan.gubbels@bc.edu
ORCID
Genetic approaches towards the cell biology of Toxoplasma gondii.
The protozoan parasite Toxoplasma gondii is a member of the phylum Apicomplexa and can cause severe disease in humans. This parasite is easily grown and manipulated in vitro and is versatile model for other apicomplexan parasites (e.g. malaria-causing Plasmodium falciparum). We are using and developing forward, reverse and functional genetic and genomics tools in combination with fluorescence microscopy to decipher the parasite鈥檚 unique cell biology.
Cell division of apicomplexan parasites is surprisingly diverse producing from 2 to 1000s of offspring per division round. Parasites are able to uncouple cytokinesis from DNA replication, and even nuclear division. The parasite鈥檚 unconventional membrane skeleton serves as a scaffold for daughter cell assembly by budding. We are working on the mechanisms behind cytoskeleton assembly and budding as well as how the transcriptional programs underlying the diversity cell division across Apicomplexa, using T. gondii and related Sarcocystis neurona as models. We use iterative expansion microscopy (pan-ExM) and single cell genomics (scRNA-seq; scATAC-seq) to dissect these processes.
Although cell division is currently our main interest, the lab is also working on different aspects, such as host cell invasion, stage differentiation and peroxisomal proteins.