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A Far-Red Fluorescent Probe to Visualize Staphylococcus aureus in Patient Samples

Jantarug, K.; Tripathi, V.; Morin, B.; Iizuka, A.; Kuehl, R.; Morgenstern, M.; Clauss, M.; Khanna, N.; Bumann, D.; Rivera-Fuentes, P.

2023-09-04 microbiology
10.1101/2023.09.04.556223 bioRxiv
Show abstract

Staphylococcus aureus (S. aureus) is the leading bacterial cause of death in high-income countries and can cause invasive infections at various body sites. These infections are associated with prolonged hospital stays, a large economic burden, considerable treatment failure, and mortality rates. So far, there is only limited knowledge about the specific locations where S. aureus resides in the human body during various infections. Hence, the visualization of S. aureus holds significant importance in microbiological research. Herein, we report the development and validation of a far-red-fluorescent probe to detect S. aureus in human biopsies from deep-seated infections. This probe displays strong fluorescence and low background in human tissues, outperforming current tools for S. aureus detection. Several applications are demonstrated, including fixed- and live-cell imaging, flow cytometry, and super-resolution bacterial imaging. O_FIG O_LINKSMALLFIG WIDTH=200 HEIGHT=124 SRC="FIGDIR/small/556223v1_ufig1.gif" ALT="Figure 1"> View larger version (35K): org.highwire.dtl.DTLVardef@1bcf4e4org.highwire.dtl.DTLVardef@71bf45org.highwire.dtl.DTLVardef@1c468fdorg.highwire.dtl.DTLVardef@1c8baf3_HPS_FORMAT_FIGEXP M_FIG C_FIG

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"Similar papers" are the closest papers from that journal in the model's embedding space. They show what the match is built on, but the ranking comes mostly from a classifier over the whole training set, not from these examples alone.