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Updated: May 17, 2026
12:08
Telomere Length and Telomerase Activity; A Yin and Yang of Cell Senescence
Published on: May 22, 2013
Telomere length and pancreatic cancer: a case-control study
Halcyon G Skinner1, Ronald E Gangnon, Kristin Litzelman
1Department of Population Health Sciences, University of Wisconsin–Madison, Madison, Wisconsin, USA.
Summary
Shorter telomeres in peripheral blood leukocytes (PBL) are linked to increased pancreatic cancer risk. Extremely long telomeres may also elevate risk, suggesting a complex relationship for this cancer.
Area of Science:
- Genetics and Genomics
- Cancer Research
- Epidemiology
Background:
- Telomeres, critical for genomic stability, shorten with age.
- Shortened telomeres in pancreatic tissue are implicated in pancreatic cancer pathogenesis.
- Shorter telomeres in peripheral blood leukocytes (PBL) are linked to increased risk for various cancers.
Purpose of the Study:
- To investigate the association between telomere length in PBL and pancreatic cancer risk.
- To determine if shorter telomeres in blood correlate with a higher incidence of pancreatic cancer.
Main Methods:
- Telomere length was quantified in PBLs from 499 pancreatic cancer cases and 963 controls using quantitative real-time PCR.
- Logistic generalized additive models (GAM) were employed for analysis, adjusting for multiple variables.
Main Results:
- A significant nonlinear association was found between PBL telomere length and pancreatic cancer risk.
- Longer telomeres were associated with lower risk across most of the distribution (1st to 90th percentile).
- Extremely long telomeres showed some evidence of increased risk.
Conclusions:
- Short telomeres in peripheral blood are associated with increased pancreatic cancer risk.
- Extremely long telomeres may also confer a higher risk.
- Telomere length could serve as a marker for pancreatic cancer risk or presence, with potential implications for preventative strategies.
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