Publications by authors named "L K Silbart"

Introduction: The commensal bacterium is a prominent member of the microbiome of animals and humans, and it plays an important role in several physiological processes. Numerous studies have correlated the reduction of abundance with many disease states, including irritable bowel syndrome, Crohn's disease, obesity, asthma, major depressive disorder, and metabolic diseases in humans. Studies have also correlated with diseases in humans involved in altered glucose metabolism, including diabetes.

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Development of an effective vaccine for Mycoplasma pneumoniae has been hindered by reports of Vaccine Enhanced Disease (VED) in test subjects vaccinated and challenged in studies conducted in the 1960s. The exact mechanism of disease exacerbation has yet to be fully described, but host immune responses to Lipid-Associated Membrane Proteins (LAMPs) lipoprotein lipid moieties have been implicated. LAMPs-induced exacerbation appears to involve helper T cell recall responses, due in part to their influence on neutrophil recruitment and subsequent inflammatory responses in the lung.

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Article Synopsis
  • Bacterial lipoproteins can cause strong immune reactions but are often overlooked in vaccine development.
  • Vaccinating mice with Mycoplasma pneumoniae lipoproteins led to an immune response that unexpectedly worsened the disease after exposure to the virus.
  • Increased levels of inflammatory cytokines and neutrophils were observed in the lungs, indicating that IL-17A plays a crucial role in this maladaptive immune response, while neutrophils contributed negatively to the disease's severity.
  • The research highlights the need to consider potential negative immune responses when designing vaccines targeting bacterial infections.
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Article Synopsis
  • - Scientists discovered a new T cell co-inhibitory molecule called TAPBPL, which is similar to existing B7-family proteins and is found on various immune cells and some tumors.
  • - The study shows that a recombinant version of TAPBPL can inhibit T cell activity in lab settings and reduce symptoms of an autoimmune disease in mice when administered in vivo.
  • - Additionally, blocking TAPBPL with a specific antibody improves anti-tumor immunity and slows down tumor growth, suggesting that targeting this pathway could have potential for treating cancer and other immune-related conditions.
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Foot and Mouth Disease is a highly contagious and economically important disease of livestock. While vaccination is often effective at controlling viral spread, failures can occur due to strain mismatch or viral mutation. Foot and Mouth Disease Virus (FMDV) possesses a hypervariable region within the G-H Loop of VP1, a capsid protein commonly associated with virus neutralization.

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