Tuberculosis Clinical Trial
Official title:
Immune Maping of Tuberculosis and Sarcoidosis Granuloma
Tuberculosis (TB) and sarcoidosis are both granulomatous diseases. Here we compared the immunological micro-environments of granulomas from TB and sarcoidosis patients using in situ sequencing (ISS) transcriptomic analysis and multiplexed immunolabelling of tissue sections.
Tuberculosis (TB) and sarcoidosis are diseases that are characterized by the formation of inflammatory structures called granulomas. TB is caused by infection with the bacteria Mycobacterium tuberculosis while sarcoidosis is a an inflammatory disease of unknown ethiology. We hypothesize that the localization of immune molecules in granulomas determines the the course of TB and sarcoidosis using in situ sequencing, a spatial transcriptomic technology and immunolabelling in biopsies from patients. In the project, we aim to answer the following questions: 1. How does the immune landscape differ in different TB granulomas (with/without necrosis, different histology)? 2. How does the immune landscape differ in acute (Lofgren's syndrome) and chronic (non-Lofgren's syndrome) sarcoidosis samples? 3. How does the immune landscape differ in histologically similar granulomas from TB and sarcoidosis patients? We will use in situ sequencing that can identify the exact location of 65 specific immune markers in the lung at the same time, thereby correlating defined immune landscapes with the histology, bacterial content and disease type. ;
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