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Full-Text Articles in Medicine and Health Sciences

Nectin-1 Is Degraded In Chlamydia Trachomatis-Infected Genital Epithelial Cells And Is Required For Herpes Simplex Virus Co-Infection-Induced C. Trachomatis Persistence., Jingru Sun May 2009

Nectin-1 Is Degraded In Chlamydia Trachomatis-Infected Genital Epithelial Cells And Is Required For Herpes Simplex Virus Co-Infection-Induced C. Trachomatis Persistence., Jingru Sun

Electronic Theses and Dissertations

The obligate intracellular bacterium Chlamydia trachomatis is the most common bacterial STD agent in the US. This bacterium has a unique biphasic developmental cycle in which the infectious elementary body (EB) infects a host mucosal epithelial cell and differentiates into the replicative form (the reticulate body or RB) within a modified vacuole called an inclusion. The RB later divides and develops back into an EB and is released, perpetuating the infectious cycle. When developing chlamydiae are exposed to unfavorable environmental conditions, they deviate from the normal developmental cycle into a non-infectious but viable state termed persistence. Previous data from our …


Zinc-Finger Protein Mcpip In Cell Death And Differentiation, Craig Younce Jan 2009

Zinc-Finger Protein Mcpip In Cell Death And Differentiation, Craig Younce

Electronic Theses and Dissertations

Monocyte chemotactic protein-1 (MCP-1) plays a critical role in the development of cardiovascular diseases. How MCP-1 contributes to the development of heart disease is not understood. We present evidence that MCP-1 causes death in cardiac myoblasts, H9c2 by inducing oxidative stress, ER stress and autophagy via a novel Znfinger protein, MCP-1 induced protein (MCPIP). MCPIP expression caused cell death and knockdown of MCPIP, attenuated MCP-1 induced cell death. Expression of MCPIP resulted in induction of iNOS and production of reactive oxygen (ROS). It caused induction of NADPH oxidase subunit phox47 and its translocation to the cytoplasmic membrane. Oxidative stress led …