Stamping Out Staph
Could a combination of MALDI-MS and immunofluorescence microscopy spell the end for MRSA?
Matthew Hallam | | Quick Read
Notorious superbug MRSA may have had its media heyday some years ago, but Staphylococcus aureus infections still cause about 20,000 deaths in the US each year. How can we reduce this number? Understanding infection-related abscess formation and host responses is key – so Elizabeth Neumann and colleagues set out to do just that by applying a combination of imaging, MALDI-MS, and codetection by indexing (CODEX) multiplexed immunofluorescence microscopy to tissue samples from infected patients.
“MALDI-MS provides information for hundreds to thousands of discrete molecules within a biological system,” says Elizabeth. “This information is sometimes difficult to relate to known cell types or tissue functional units, complicating data analysis and integration. CODEX immunofluorescence and other multiplexed immunofluorescence microscopy approaches are inherently targeted and allow us to fluorescently stain cell-defining proteins.” Correlating these two techniques is thus useful for connecting the molecular information obtained from MALDI-MS with well-defined tissue structures.
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