Optimized for routine: highly sensitive fluorescent Telomeric Repeat Amplification Protocol (f-TRAP)
The strict suppression of telomerase activity (TA) in terminally differentiated human cells causes a shortening of the chromosome ends after each cell division. This tumor suppression surveillance mechanism is associated with a limited number of cell divisions known as Hayflick limit. Here we presen...
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2024-10-01
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| Series: | BioTechniques |
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| Online Access: | https://www.tandfonline.com/doi/10.1080/07366205.2024.2432805 |
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| author | Silke Fähnrich Anne Wedemann Laura Steenpass Wilhelm Gerhard Dirks |
| author_facet | Silke Fähnrich Anne Wedemann Laura Steenpass Wilhelm Gerhard Dirks |
| author_sort | Silke Fähnrich |
| collection | DOAJ |
| description | The strict suppression of telomerase activity (TA) in terminally differentiated human cells causes a shortening of the chromosome ends after each cell division. This tumor suppression surveillance mechanism is associated with a limited number of cell divisions known as Hayflick limit. Here we present an optimized protocol for measuring TA that combines a fluorescently labeled bait primer and polymerase chain reaction (PCR) amplification with analytical capillary electrophoresis (CE) to achieve a detection limit of one telomerase-positive cell per ten thousand negative cells. In research laboratories today, a broad panel of TRAP assay protocols enables the assessment of the immortality of newly generated cell lines or the unambiguous evaluation of the reprogramming of induced pluripotent stem cells (iPSCs). The present f-TRAP protocol, optimized for routine use, enables fast ad hoc application for single measurements up to a high throughput of mass samples using a triplicate approach of different lysate concentrations. Final CE analysis facilitates standardized data processing and storage for documentation of results and could make f-TRAP a useful assay in research and clinical oncology. |
| format | Article |
| id | doaj-art-f19a13cc80a3453aaa77b8dd377b50b5 |
| institution | Kabale University |
| issn | 0736-6205 1940-9818 |
| language | English |
| publishDate | 2024-10-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | BioTechniques |
| spelling | doaj-art-f19a13cc80a3453aaa77b8dd377b50b52025-01-16T15:42:48ZengTaylor & Francis GroupBioTechniques0736-62051940-98182024-10-01761051752210.1080/07366205.2024.2432805Optimized for routine: highly sensitive fluorescent Telomeric Repeat Amplification Protocol (f-TRAP)Silke Fähnrich0Anne Wedemann1Laura Steenpass2Wilhelm Gerhard Dirks3Department of Human and Animal Cell Lines, Leibniz-Institute DSMZ − German Collection of Microorganisms and Cell Cultures GmbH, Braunschweig, GermanyDepartment of Human and Animal Cell Lines, Leibniz-Institute DSMZ − German Collection of Microorganisms and Cell Cultures GmbH, Braunschweig, GermanyDepartment of Human and Animal Cell Lines, Leibniz-Institute DSMZ − German Collection of Microorganisms and Cell Cultures GmbH, Braunschweig, GermanyDepartment of Human and Animal Cell Lines, Leibniz-Institute DSMZ − German Collection of Microorganisms and Cell Cultures GmbH, Braunschweig, GermanyThe strict suppression of telomerase activity (TA) in terminally differentiated human cells causes a shortening of the chromosome ends after each cell division. This tumor suppression surveillance mechanism is associated with a limited number of cell divisions known as Hayflick limit. Here we present an optimized protocol for measuring TA that combines a fluorescently labeled bait primer and polymerase chain reaction (PCR) amplification with analytical capillary electrophoresis (CE) to achieve a detection limit of one telomerase-positive cell per ten thousand negative cells. In research laboratories today, a broad panel of TRAP assay protocols enables the assessment of the immortality of newly generated cell lines or the unambiguous evaluation of the reprogramming of induced pluripotent stem cells (iPSCs). The present f-TRAP protocol, optimized for routine use, enables fast ad hoc application for single measurements up to a high throughput of mass samples using a triplicate approach of different lysate concentrations. Final CE analysis facilitates standardized data processing and storage for documentation of results and could make f-TRAP a useful assay in research and clinical oncology.https://www.tandfonline.com/doi/10.1080/07366205.2024.2432805capillary electrophoresisfluorescent telomeric repeat amplification protocol (f-TRAPhuman telomerase reverse transcriptase (hTERT)immortalizationnon-radioactivetelomerase activity (TA) |
| spellingShingle | Silke Fähnrich Anne Wedemann Laura Steenpass Wilhelm Gerhard Dirks Optimized for routine: highly sensitive fluorescent Telomeric Repeat Amplification Protocol (f-TRAP) BioTechniques capillary electrophoresis fluorescent telomeric repeat amplification protocol (f-TRAP human telomerase reverse transcriptase (hTERT) immortalization non-radioactive telomerase activity (TA) |
| title | Optimized for routine: highly sensitive fluorescent Telomeric Repeat Amplification Protocol (f-TRAP) |
| title_full | Optimized for routine: highly sensitive fluorescent Telomeric Repeat Amplification Protocol (f-TRAP) |
| title_fullStr | Optimized for routine: highly sensitive fluorescent Telomeric Repeat Amplification Protocol (f-TRAP) |
| title_full_unstemmed | Optimized for routine: highly sensitive fluorescent Telomeric Repeat Amplification Protocol (f-TRAP) |
| title_short | Optimized for routine: highly sensitive fluorescent Telomeric Repeat Amplification Protocol (f-TRAP) |
| title_sort | optimized for routine highly sensitive fluorescent telomeric repeat amplification protocol f trap |
| topic | capillary electrophoresis fluorescent telomeric repeat amplification protocol (f-TRAP human telomerase reverse transcriptase (hTERT) immortalization non-radioactive telomerase activity (TA) |
| url | https://www.tandfonline.com/doi/10.1080/07366205.2024.2432805 |
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