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Updated: May 27, 2026
12:08
Telomere Length and Telomerase Activity; A Yin and Yang of Cell Senescence
Published on: May 22, 2013
Haploinsufficiency and telomere length homeostasis
1Université de Montréal, Montréal, Québec, Canada. lea.harrington@umontreal.ca
Mutation Research
|November 22, 2011
Summary
Haploinsufficiency, where one gene copy is insufficient, impacts human diseases. This review explores gene dosage effects on telomere maintenance in model organisms, linking telomere function to health and disease.
Area of Science:
- Genetics
- Molecular Biology
- Cell Biology
Background:
- Haploinsufficiency, a condition where one functional copy of a gene is insufficient, causes autosomal dominant or X-linked diseases in humans.
- Studying gene dosage effects in model organisms involves engineered mutations or hemizygosity to understand heterozygous impacts.
Purpose of the Study:
- To review the role of haploinsufficiency in telomere length maintenance.
- To discuss the relationship between gene dosage and telomere function in normal and disease states, using model organism examples.
Main Methods:
- Literature review focusing on haploinsufficiency and telomere biology.
- Analysis of selected examples from various model organisms to illustrate gene dosage effects.
Main Results:
- Haploinsufficiency can significantly impact telomere length maintenance.
- Gene dosage is a critical factor in telomere function across different biological contexts.
Conclusions:
- Understanding haploinsufficiency in telomere biology is crucial for comprehending both normal cellular processes and disease pathogenesis.
- Model organisms provide valuable insights into the complex interplay between gene dosage and telomere maintenance.
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