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Chlamydia Pneumoniae Infection Of Neuronal Cells Induces Changes In Calcium-Associated Gene Expression Consistent With Alzheimer’S Disease, Christopher Andrew Cappellini, Ahmad B. Cader, Keith G. Williams, Juliana Zoga, Susan T. Hingley Jan 2013

Chlamydia Pneumoniae Infection Of Neuronal Cells Induces Changes In Calcium-Associated Gene Expression Consistent With Alzheimer’S Disease, Christopher Andrew Cappellini, Ahmad B. Cader, Keith G. Williams, Juliana Zoga, Susan T. Hingley

Scholarly Posters

Background and Significance: Previous studies have shown that cells infected with Chlamydia pneumoniae (Cpn) exhibit altered gene expression consistent with that observed in Alzheimer’s disease (AD). Furthermore, AD neurodegeneration has been linked to dysregulation of intracellular calcium and calcium-related processes. Therefore, we hypothesize that one mechanism by which pathogenesis evolves in AD is through infection-induced changes in expression of calcium-related genes. Objectives: To determine if infection of neuronal cells with Cpn alters expression of calciumrelated genes associated with neurodegeneration. Methods: SK-N-MC neuronal cells were infected with Cpn (AR39 strain; MOI=1) for 3 to 72 hours, then calcium-related genes were screened …


Analysis Of Autophagy And Inflammasome Regulation In Neuronal Cells And Monocytes Infected With Chlamydia Pneumoniae: Implications For Alzheimer’S Disease, Brian J. Balin, Christine J. Hammond, Juliana Zoga, Ahmad B. Cader, Annette K. Slutter, Jonathan M. Anzman, Ian Kohler, Susan T. Hingley, Denah M. Appelt Jan 2013

Analysis Of Autophagy And Inflammasome Regulation In Neuronal Cells And Monocytes Infected With Chlamydia Pneumoniae: Implications For Alzheimer’S Disease, Brian J. Balin, Christine J. Hammond, Juliana Zoga, Ahmad B. Cader, Annette K. Slutter, Jonathan M. Anzman, Ian Kohler, Susan T. Hingley, Denah M. Appelt

Scholarly Posters

Objectives: Our laboratory has been studying the role of infection with the obligate intracellular bacterium Chlamydia pneumoniae in sporadic late-onset Alzheimer disease (LOAD). This infection may be a trigger for the pathology observed in LOAD as a function of initiating changes in gene regulation following entry of the organism into the brain. As such, we are analyzing how this infection can promote changes in autophagy and inflammasome gene regulation as both have been shown to be altered in LOAD. Methods: Human SKNMC neuronal cells and THP1 monocytes were infected in vitro for 24-72 hrs with a laboratory strain of Chlamydia …


Autophagy And Apoptotic Genes Implicated In Alzheimer’S Disease Are Modulated Following Infection Of Neuronal Cells With Chlamydia Pneumoniae, Denah M. Appelt, Ian Kohler, Annette K. Slutter, Juliana Zoga, Susan T. Hingley, Brian J. Balin Jan 2012

Autophagy And Apoptotic Genes Implicated In Alzheimer’S Disease Are Modulated Following Infection Of Neuronal Cells With Chlamydia Pneumoniae, Denah M. Appelt, Ian Kohler, Annette K. Slutter, Juliana Zoga, Susan T. Hingley, Brian J. Balin

Scholarly Posters

Background: The focus of the current studies was to determine the relationship between the molecular mechanisms interconnecting autophagy and apoptosis following Chlamydia pneumoniae infection in neuronal cells. Dysfunctions in apoptosis and autophagy have been implicated in the neurodegeneration associated with Alzheimer’s disease (AD). Autophagy in AD pathogenesis has been shown to play a role in amyloid processing through the endosomal-lysosomal system. Apoptosis may contribute to the neuronal cell loss observed in AD; however, there is limited evidence of the apoptotic process proceeding to terminal completion. Although Aβ1-42 has been shown to induce apoptosis in neurons and may be an early …