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Articles 1 - 6 of 6
Full-Text Articles in Immunology of Infectious Disease
Fine-Mapping Of Human Antibody Specificity In Response To Natural Chlamydia Trachomatis Infection Utilized To Inform Vaccines Against Adhesion Factors, Amanda L. Collar
Fine-Mapping Of Human Antibody Specificity In Response To Natural Chlamydia Trachomatis Infection Utilized To Inform Vaccines Against Adhesion Factors, Amanda L. Collar
Biomedical Sciences ETDs
Chlamydia trachomatis (Ct) is the causative pathogen for the most common bacterial sexually transmitted infection worldwide and can cause serious medical consequences in women, including pelvic inflammatory disease, ectopic pregnancy, and infertility. For these reasons, a Ct vaccine is urgently needed, yet, its development remains a significant challenge. One barrier to producing a Ct vaccine is the gap in knowledge of protective immune responses for Ct infection, including the role that antibodies may play. Therefore, I aimed to characterize the human antibody response to natural urogenital Ct infection in women using Deep Sequence-Coupled Biopanning. Further, I leveraged these findings to …
The Investigation Of Surface Structures On Various Pathogens And Their Interactions With The Human Immune System, Carmen M. Villalobos
The Investigation Of Surface Structures On Various Pathogens And Their Interactions With The Human Immune System, Carmen M. Villalobos
Biomedical Engineering ETDs
The cell surface is the first interface the host immune system encounters and
its investigation has led to a better understanding of cellular biology and types of
pathways that pathogens target in a host cell. The cell surface has evolved to include
many functions such as manipulation of the cytoskeleton, cell signaling, membrane
trafficking, adhesion, and integration into host tissue. The pathogens of interest are
the pathogenic fungus, Candida albicans, and the parasite, Giardia lamblia and we
investigate the consequences of drug treatments on the cell surface, leading to
promising new targets.
Role Of Host Cell B-Catenin During Toxoplasma Gondii Infection, Cameron Ranken
Role Of Host Cell B-Catenin During Toxoplasma Gondii Infection, Cameron Ranken
Biology ETDs
The microbial pathogen Toxoplasma gondii is an intracellular protozoan that actively invades host cells and simultaneously creates a specialized parasitophorous vacuole within which the parasite lives and replicates. The parasite molecular machinery that drives establishment of the intracellular niche is relatively well known. However, it is now emerging that Toxoplasma exploits less well-understood host cell components to enable successful infection. Here, we examined the role of host Wnt/β-catenin during T. gondii infection. Using human fibroblasts and a mouse dendritic cell line, we found that infection with Toxoplasma stimulated both upregulation and nuclear localization of β-catenin. Using a transwell experimental approach, …
Schistosomiasis In The Wild: A Transcriptomics Perspective On Field-Derived Biomphalaria Pfeifferi And Schistosoma Mansoni, And Their Interactions, Sarah K. Buddenborg
Schistosomiasis In The Wild: A Transcriptomics Perspective On Field-Derived Biomphalaria Pfeifferi And Schistosoma Mansoni, And Their Interactions, Sarah K. Buddenborg
Biology ETDs
Schistosomiasis, caused by trematodes in the genus Schistosoma, is a widespread neglected tropical disease with the species S. mansoni infecting over 100 million people. We aimed to better understand the snail host and parasite responses during intramolluscan stages of infection by performing dual RNA-Seq on field-collected snails with natural infections from western Kenya. We collected uninfected Biomphalaria pfeifferi, B. pfeifferi with a patent cercariae-producing S. mansoni infection, and B. pfeifferi exposed to field-collected S. mansoni at 1 and 3d (days post infection).
We first created a high-quality B. pfeifferi transcriptome to identify the snail response to S. mansoni infection. …
Validation Of The Pre-B Cell Receptor As A Therapeutic Target In B Cell Precursor Acute Lymphoblastic Leukemia, Michael F. Erasmus
Validation Of The Pre-B Cell Receptor As A Therapeutic Target In B Cell Precursor Acute Lymphoblastic Leukemia, Michael F. Erasmus
Biomedical Sciences ETDs
This dissertation is built upon the fundamental idea that the pre-B cell receptor (pre-BCR) is important to leukemia cell survival and a logical therapeutic target in B cell precursor acute lymphoblastic leukemia (BCP-ALL). The pre-BCR is expressed early at a specific stage during B cell development where it plays a central role in survival of healthy B lymphocytes. This receptor is composed of the membrane heavy chain (mIgμ) associated with surrogate light chain components, 5 and VpreB. Through the use of advanced imaging modalities, in particular two-color single particle tracking (SPT), we showed that pre-BCRs formed transient, homotypic interactions. These …
Rapid Identification Of Streptococcal Infections Using Fluorescent Antibody Techniques, James H. Meadows
Rapid Identification Of Streptococcal Infections Using Fluorescent Antibody Techniques, James H. Meadows
Biology ETDs
The use of fluorescent microscopy coupled with immunological techniques offer new methods for the demonstration of antigen-antibody reactions. The adaptation of these techniques to grouping of beta hemolytic streptococci makes feasible their further adaptation toward identification of group A streptococci in clinical material. Commercially available labeled antibodies against group A beta hemolytic streptococci were obtained for use in this study. A method for the determination of labeled antisera specificity is proposed and a technique for absorbing out any heterologous reacting antibody is described. Using this commercial labeled antisera, subsequent to specificity studies plus absorption if necessary, adaptations of basic fluorescent …