Multiscale Spatial Mapping of Microbial Communities for Biotherapeutic Development
Sehgal, P.; Shaw, A. G.; Cutler, K.; Letson, B.; Booth, G. T.; Scuderi, G. J.; Doshi, A.; Diebold, P.; Bronson, H.; Trisolini, M.; Dharaiya, U.; Keomanee-Dizon, K.; Jung, S.; Bagin, J.; Berleman, J.; Bhalla, A.; Jacoby, K.; Kujawa, S.; Mintz, J.; Murugkar, P.; Prior, M.; Robertson, K.; Burkart, A. L.; Pontin, J.; Swem, L. R.; Vlaminck, I. D.; Cheng, M. P.; Burnham, P.; Shi, H.
Show abstract
Live biotherapeutic products (LBPs) are emerging as powerful tools to modulate the microbiome using well-defined microbial communities. Yet, designing, manufacturing, and delivering LBPs remains challenging, in part due to a lack of technologies capable of analyzing LBPs as complete, spatially organized consortia. Conventional sequencing-based methods lack sensitivity and specificity and do not provide critical spatial information. To address this, we present high-phylogenetic-resolution spatial mapping platform (HiPR-Map), a state-of-the-art spectral imaging technology that enables precise enumeration and spatial localization of microbial cells at species-level within complex communities. Through these advantages, HiPR-Map provides unique insights for LBP discovery and development. Applying HiPR-Map to an LBP designed to complement immune checkpoint therapy, we profiled over 1.8 million microbial cells engrafted in the murine gut. Our analysis revealed distinctive microbial spatial organization, underscoring the power of imaging-based microbiome profiling to optimize LBP design and characterization. This work highlights the transformative potential of spatial microbiome analysis for next-generation LBP development.
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