The fungal bioluminescence pathway can be reconstituted in other organisms allowing luminescence imaging without exogenously supplied substrate. The pathway starts from hispidin biosynthesis-a step catalyzed by a large fungal polyketide synthase that requires a posttranslational modification for activity. Here, we report identification of alternative compact hispidin synthases encoded by a phylogenetically diverse group of plants.
View Article and Find Full Text PDFBioluminescence resonance energy transfer (BRET) is one of the most promising approaches used for noninvasive imaging of protein-protein interactions . Recently, our team has discovered a genetically encodable bioluminescent system from the fungus and identified a novel luciferase that represents an imaging tool orthogonal to other luciferin-luciferase systems. We demonstrated the possibility of using the fungal luciferase as a new BRET donor by creating fused pairs with acceptor red fluorescent proteins, of which tdTomato provided the highest BRET efficiency.
View Article and Find Full Text PDFThe discovery of the bioluminescence pathway in the fungus Neonothopanus nambi enabled engineering of eukaryotes with self-sustained luminescence. However, the brightness of luminescence in heterologous hosts was limited by performance of the native fungal enzymes. Here we report optimized versions of the pathway that enhance bioluminescence by one to two orders of magnitude in plant, fungal and mammalian hosts, and enable longitudinal video-rate imaging.
View Article and Find Full Text PDFWe report a case of atypical hemolytic uremic syndrome (aHUS) that occurred after childbirth in a patient with a history of numerous recurrent episodes of TMA with nephrotic proteinuria and impaired renal function. At 33 weeks of the first spontaneous pregnancy, proteinuria up to 0.8 g/l was first registered, at 38 weeks she was hospitalized with proteinuria, reaching a maximum of 13 g/l, she was delivered promptly, after which progressive thrombocytopenia was noted over the next few days (up to 44×10/l) and anemia and severe arterial hypertension, which could not be corrected by several groups of antihypertensive drugs.
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August 2023
This study demonstrates the development of a humanized luciferase imaging reporter based on a recently discovered mushroom luciferase () from In vitro and in vivo assessments showed that human-codon-optimized () has significantly higher activity than native in various cancer cell types. The potential of in non-invasive bioluminescence imaging was demonstrated by human tumor xenografts subcutaneously and by the orthotopic lungs xenograft in immunocompromised mice. enzyme or its unique 3OH-hispidin substrate was found to be non-cross-reacting with commonly used luciferase reporters such as Firefly (FLuc2), (RLuc), or nano-luciferase (NLuc).
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