Quantifying glucose uptake at the single cell level with confocal microscopy reveals significant variability within and across individuals
Abstract Measurement of glycated hemoglobin (HbA1c) in human red blood cells plays a critical role in the diagnosis and treatment of diabetes mellitus. However, recent studies have suggested large variation in the relationship between average glucose levels and HbA1c, creating the need to understand...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-74574-3 |
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| author | Joel D. Paprocki Patrick J. Macdonald Yongjin Xu Alan Cheng Timothy C. Dunn Sergey Y. Tetin |
| author_facet | Joel D. Paprocki Patrick J. Macdonald Yongjin Xu Alan Cheng Timothy C. Dunn Sergey Y. Tetin |
| author_sort | Joel D. Paprocki |
| collection | DOAJ |
| description | Abstract Measurement of glycated hemoglobin (HbA1c) in human red blood cells plays a critical role in the diagnosis and treatment of diabetes mellitus. However, recent studies have suggested large variation in the relationship between average glucose levels and HbA1c, creating the need to understand glucose variability at the cellular level. Here, we devised a fluorescence-based method to quantitatively observe GLUT1-mediated intracellular glucose analog tracer uptake in individual RBCs utilizing microfluidics and confocal microscopy. For the first time, we demonstrate that intracellular/extracellular tracer percentages can be measured at the single cell level using the fluorescently labeled glucose analog, 2-NBDG. A small donor panel study indicates that the characteristic intracellular 2-NBDG percentages can statistically differ based on race (i.e., Caucasian/Hispanic vs Black). RBC intracellular glucose analog tracer 2-NBDG levels show significant variability both from cell-to-cell and from donor-to-donor. This specific transport mechanism will affect HbA1c formation in erythrocytes. This finding further supports a more personalized, and perhaps improved, diagnostic strategy for diabetes. |
| format | Article |
| id | doaj-art-2621aab1b0fd45f48897e181748e603e |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-2621aab1b0fd45f48897e181748e603e2025-01-26T12:30:42ZengNature PortfolioScientific Reports2045-23222025-01-0115111210.1038/s41598-024-74574-3Quantifying glucose uptake at the single cell level with confocal microscopy reveals significant variability within and across individualsJoel D. Paprocki0Patrick J. Macdonald1Yongjin Xu2Alan Cheng3Timothy C. Dunn4Sergey Y. Tetin5Applied Research and Technology, Abbott Diagnostics Division, Abbott LaboratoriesApplied Research and Technology, Abbott Diagnostics Division, Abbott LaboratoriesClinical Affairs, Abbott Diabetes Care IncClinical Affairs, Abbott Diabetes Care IncClinical Affairs, Abbott Diabetes Care IncApplied Research and Technology, Abbott Diagnostics Division, Abbott LaboratoriesAbstract Measurement of glycated hemoglobin (HbA1c) in human red blood cells plays a critical role in the diagnosis and treatment of diabetes mellitus. However, recent studies have suggested large variation in the relationship between average glucose levels and HbA1c, creating the need to understand glucose variability at the cellular level. Here, we devised a fluorescence-based method to quantitatively observe GLUT1-mediated intracellular glucose analog tracer uptake in individual RBCs utilizing microfluidics and confocal microscopy. For the first time, we demonstrate that intracellular/extracellular tracer percentages can be measured at the single cell level using the fluorescently labeled glucose analog, 2-NBDG. A small donor panel study indicates that the characteristic intracellular 2-NBDG percentages can statistically differ based on race (i.e., Caucasian/Hispanic vs Black). RBC intracellular glucose analog tracer 2-NBDG levels show significant variability both from cell-to-cell and from donor-to-donor. This specific transport mechanism will affect HbA1c formation in erythrocytes. This finding further supports a more personalized, and perhaps improved, diagnostic strategy for diabetes.https://doi.org/10.1038/s41598-024-74574-3ErythrocytesDemographicHbA1cDiabetesContinuous glucose monitoringIntracellular |
| spellingShingle | Joel D. Paprocki Patrick J. Macdonald Yongjin Xu Alan Cheng Timothy C. Dunn Sergey Y. Tetin Quantifying glucose uptake at the single cell level with confocal microscopy reveals significant variability within and across individuals Scientific Reports Erythrocytes Demographic HbA1c Diabetes Continuous glucose monitoring Intracellular |
| title | Quantifying glucose uptake at the single cell level with confocal microscopy reveals significant variability within and across individuals |
| title_full | Quantifying glucose uptake at the single cell level with confocal microscopy reveals significant variability within and across individuals |
| title_fullStr | Quantifying glucose uptake at the single cell level with confocal microscopy reveals significant variability within and across individuals |
| title_full_unstemmed | Quantifying glucose uptake at the single cell level with confocal microscopy reveals significant variability within and across individuals |
| title_short | Quantifying glucose uptake at the single cell level with confocal microscopy reveals significant variability within and across individuals |
| title_sort | quantifying glucose uptake at the single cell level with confocal microscopy reveals significant variability within and across individuals |
| topic | Erythrocytes Demographic HbA1c Diabetes Continuous glucose monitoring Intracellular |
| url | https://doi.org/10.1038/s41598-024-74574-3 |
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