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Soma Nyansa M, Oronova A, Gora N, Geborkoff MR, Ostlund NR, Fritz DR, Werner T, Tanasova M. Turn-on Rhodamine Glycoconjugates Enable Real-Time GLUT Activity Monitoring in Live Cells and In Vivo. Chem Biomed Imaging 2023; 1:637-647. [PMID: 37873027 PMCID: PMC10593130 DOI: 10.1021/cbmi.3c00063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/14/2023] [Accepted: 08/16/2023] [Indexed: 10/25/2023]
Abstract
The direct relationship between facilitative glucose transporters (GLUTs) and metabolic diseases opens new avenues for sensing metabolic deregulations and drives the development of molecular probes for GLUT-targeted detection of metabolic diseases. Radiotracer-based molecular imaging probes have been effectively utilized in reporting alterations in sugar uptake as an indication of metabolic deregulations, cancer development, or inflammation. Progress in developing fluorophore-based tools facilitated GLUT-specific analyses using more accessible fluorescence-based instrumentation. However, restrictions on the emission range of fluorophores and the requirement for substantial post-treatments to reduce background fluorescence have brought to light the critical directions for improvement of the technology for broader use in screening applications. Here we present turn-on GLUT activity reporters activated upon cells' internalization. We demonstrate a specific delivery of a sizable rhodamine B fluorophore through GLUT5 and showcase a stringent requirement in conjugate structure for maintaining a GLUT-specific uptake. With the turn-on GLUT probes, we demonstrate the feasibility of high-throughput fluorescence microscopy and flow cytometry-based GLUT activity screening in live cells and the probes' applicability for assessing sugar uptake alterations in vivo.
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Affiliation(s)
- Monica
Mame Soma Nyansa
- Department
of Chemistry, Michigan Technological University,1400 Townsend Drive, Houghton, Michigan 49931, United States
| | - Adelina Oronova
- Department
of Chemistry, Michigan Technological University,1400 Townsend Drive, Houghton, Michigan 49931, United States
- Health
Research Institute, Michigan Technological
University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
| | - Nazar Gora
- Department
of Chemistry, Michigan Technological University,1400 Townsend Drive, Houghton, Michigan 49931, United States
- Health
Research Institute, Michigan Technological
University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
| | - Micaela Rayne Geborkoff
- Department
of Biological Sciences, Michigan Technological
University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
| | - Nathan Randal Ostlund
- Department
of Biological Sciences, Michigan Technological
University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
| | - Delaney Raine Fritz
- Department
of Biological Sciences, Michigan Technological
University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
| | - Thomas Werner
- Department
of Biological Sciences, Michigan Technological
University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
- Health
Research Institute, Michigan Technological
University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
| | - Marina Tanasova
- Department
of Chemistry, Michigan Technological University,1400 Townsend Drive, Houghton, Michigan 49931, United States
- Health
Research Institute, Michigan Technological
University, 1400 Townsend Drive, Houghton, Michigan 49931, United States
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