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For a long time, researchers have worked to understand the immune reactions that take place in the human body during various illnesses, such as cancer and inflammatory disorders.Emma Teixeiro, an associate professor in the MU School of Medicine, and her group recently examined how immunological memory, which the body's immune system retains after an infection or vaccination and helps prevent reinfection, gets generated and maintained, as well as the role inflammation plays in forming that immunological memory."Our immune system defends us from disease, but it is a very complicated system with many interactions occurring, and if things get dysregulated, it may actually play a role in causing disease," said Teixeiro, who works in the NextGen Precision Health Institute on MU's campus. "So, our research focuses on better understanding how these immune responses can be generated and controlled, specifically by looking at the critical role T cells play, as T cells help protect the body from infection and may play a role in attacking cancer."Using a mouse model, the researchers created various strains of pathogenic bacteria that increased levels of inflammation through the stimulator of interferon genes - or STING - proteins inside of T cells. While many scientists assumed this increase in inflammation would result in a stronger immune response and therefore stronger immunological memory, Teixeiro and her team found the opposite: immunological memory was reduced."Some scientists in the field believe STING activation may be targeted to improve cancer vaccines or immunotherapies, so gaining a basic understanding of all the interacting mechanisms at play is critical to reduce the chances of unintended consequences or harmful side effects," Teixeiro said. "We want to better understand how to regulate immunological memory, which has implications for potential vaccines or immunotherapies that trigger T cells in a way that hopefully boosts long-term memory, so our bodies are protected from disease over time."While her research is fundamental in nature, Teixeiro's findings have the potential to contribute to the development of more effective treatments to help patients suffering with cancer, chronic obstructive pulmonary disease (COPD), STING-associated vasculopathy with onset in infancy (SAVI), asthma and other chronic inflammatory syndromes."The pursuit of knowledge is what drives my curiosity as a scientist," Teixeiro said. "While there are still more questions to answer, this research is a small step in the right direction, and I am proud to be a part of it.""STING controls T cell memory fitness during infection through T cell intrinsic and Indoleamine-pyrrole 2,3-dioxygenase (IDO) dependent mechanisms" was recently published in PNAS. Coauthors on the study include Michael Quaney, Curtis Pritzl, Rebecca Newth, Karin Knudson, Vikas Saxena, Caitlyn Guldenpfennig, Diana Gil, Chris Rae, Peter Lauer, Mark Daniels and Dezzarae Luera.( With inputs from ANI )Disclaimer: This post has been auto-published from an agency feed without any modifications to the text and has not been reviewed by an editor

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Technology :Researchers reveal regulating immunological memory help immune system fight disease

For a long time, researchers have worked to understand the immune reactions that take place in the human body ... ...