TelOMpy measures individual telomere lengths from data at single-molecule resolution.
Evidence
This bioinformatics tool was demonstrated on Western-diet mouse optical genome mapping data and newly generated sperm maps, measuring absolute telomere lengths across thousands of per sample and comparing sperm with somatic tissues in overweight mice.
Caveat
The abstract reports method development and mouse demonstrations, with broader benchmarking across species, platforms, and clinical sample types not shown.
Simplified
BACKGROUND: Existing methods for assessing telomere length suffer from various limitations, including low resolution, narrow scope, limited throughput, and poor reproducibility. These issues largely arise from the reliance on laborious and indirect approaches to telomere length measurement.
RESULTS: We developed TelOMpy, a bioinformatics tool designed to determine the lengths of individual from data. To demonstrate its capabilities, we applied TelOMpy to data from a Western diet mouse experiment, revealing substantial variation in individual telomere lengths and highlighting the impact of a high-fat diet on telomere shortening and loss. Utilizing a newly developed protocol for high-molecular-weight DNA extraction, we generated the first optical genome maps from sperm and compared telomere lengths between sperm and somatic tissues in overweight mice.
CONCLUSIONS: TelOMpy enables direct measurement of absolute telomere lengths at the single-molecule level across thousands of telomeres per sample. This approach eliminates errors associated with indirect methods and offers high analytical power and reproducibility, representing a significant advancement in telomere length analysis.
Key numbers
25.7 kbp
Average Length in Sperm
Measured in mice fed a .
37.7 kbp
Average Length in Kidney
Measured in mice fed a .
236 bp to 840 kbp
Length Variation Range
Observed across individual in the dataset.
Full Text
We can’t show the full text here under this license.
