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Author: Donna Huber

IP3 receptor-mediated Ca2+ release from acidocalcisomes regulates mitochondrial bioenergetics and prevents autophagy in Trypanosoma cruzi

Donna Huber on September 2, 2020

In contrast to animal cells, the inositol 1,4,5-trisphosphate receptor of Trypanosoma cruzi (TcIP3R) localizes to acidocalcisomes instead of the endoplasmic reticulum. Here, we present evidence that TcIP3R is a Ca2+ release channel gated by IP3 when expressed in DT40 cells knockout for all vertebrate IP3 receptors, and is required for Ca2+ uptake by T. cruzi mitochondria, regulating pyruvate dehydrogenase …

Fine-scale heterogeneity in Schistosoma mansoni force of infection measured through antibody response

Donna Huber on August 31, 2020

Schistosomiasis is among the most common parasitic diseases in the world, with over 142 million people infected in low- and middle-income countries. Measuring population-level transmission is centrally important in guiding schistosomiasis control programs. Traditionally, human Schistosoma mansoni infections have been detected using stool microscopy, which is logistically difficult at program scale and has low sensitivity when people …

Noncoding RNAs in Apicomplexan Parasites: An Update

Donna Huber on August 20, 2020

Illustration of Long Noncoding RNA (lncRNA) Functions in Apicomplexan Parasites. Recent breakthroughs in high-throughput technologies, transcriptomics, and advances in our understanding of gene regulatory networks have enhanced our perspective on the complex interplay between parasite and host. Noncoding RNA molecules have been implicated in critical roles covering a broad range of biological processes in the …

Trainee Spotlight: Alona Botnar

Donna Huber on August 18, 2020

T32 trainee Alona Botnar is entering her fifth year as a Ph.D. candidate in Dr. Dennis Kyle’s laboratory. She is from Doylestown, Pennsylvania and completed her B.S. in Chemistry with a minor in Biochemistry at the University of Georgia in 2015. During her undergraduate career, she also worked at Janssen, a pharmaceutical company of Johnson …

Age influences thermal tolerance in Asian malaria mosquito

Donna Huber on August 11, 2020

Environmental portrait of Courtney Murdock in her laboratory at UGA's School of Veterinary Medicine (Dorothy Kozlowski) Malaria disease transmission models are important tools for controlling and eliminating disease spread. However, a model is only as good as the assumptions about the various variables. Dr. Courtney Murdock, a member of the UGA’s Center for Tropical and …

Metabolomics profiling reveals new aspects of dolichol biosynthesis in Plasmodium falciparum

Donna Huber on August 6, 2020

The cis-polyisoprenoid lipids namely polyprenols, dolichols and their derivatives are linear polymers of several isoprene units. In eukaryotes, polyprenols and dolichols are synthesized as a mixture of four or more homologues of different length with one or two predominant species with sizes varying among organisms. Interestingly, co-occurrence of polyprenols and dolichols, i.e. detection of a …

Trainee Spotlight: Emma Troth

Donna Huber on July 23, 2020

Emma Troth, a Ph.D. trainee in Dennis Kyle's laboratory, is entering her fourth year at UGA. She is originally from Eureka, Illinois, and attended Bradley University where she majored in Biology with a minor in Ethics. While at UGA, Emma has served as president of the CTEGD Graduate Student Association (2019-2020) and is currently the …

Age influences the thermal suitability of Plasmodium falciparum transmission in the Asian malaria vector Anopheles stephensi

Donna Huber on July 22, 2020

Models predicting disease transmission are vital tools for long-term planning of malaria reduction efforts, particularly for mitigating impacts of climate change. We compared temperature-dependent malaria transmission models when mosquito life-history traits were estimated from a truncated portion of the lifespan (a common practice) versus traits measured across the full lifespan. We conducted an experiment on …

Pre-Erythrocytic Vaccines against Malaria

Donna Huber on July 21, 2020

Malaria, caused by the protozoan Plasmodium, is a devastating disease with over 200 million new cases reported globally every year. Although immunization is arguably the best strategy to eliminate malaria, despite decades of research in this area we do not have an effective, clinically approved antimalarial vaccine. The current impetus in the field is to develop vaccines …