Telomere position effect

Regulation of gene expression with progressive telomere shortening over long distances

Jérôme D. Robin, Andrew T. Ludlow, Kimberly Batten, Frédérique Magdinier, Guido Stadler, Kathyrin R. Wagner, Jerry W. Shay, Woodring E. Wright

Research output: Contribution to journalArticle

102 Citations (Scopus)

Abstract

While global chromatin conformation studies are emerging, very little is known about the chromatin conformation of human telomeres. Most studies have focused on the role of telomeres as a tumor suppressor mechanism. Here we describe how telomere length regulates gene expression long before telomeres become short enough to produce a DNA damage response (senescence). We directly mapped the interactions adjacent to specific telomere ends using a Hi-C (chromosome capture followed by high-throughput sequencing) technique modified to enrich for specific genomic regions. We demonstrate that chromosome looping brings the telomere close to genes up to 10 Mb away from the telomere when telomeres are long and that the same loci become separated when telomeres are short. Furthermore, expression array analysis reveals that many loci, including noncoding RNAs, may be regulated by telomere length. We report three genes (ISG15 [interferon-stimulated gene 15 kd], DSP [Desmoplakin], and C1S [complement component 1s subcomplement]) located at three different subtelomeric ends (1p, 6p, and 12p) whose expressions are altered with telomere length. Additionally, we confirmed by in situ analysis (3D-FISH [three-dimensional fluorescence in situ hybridization]) that chromosomal looping occurs between the loci of those genes and their respective telomere ends. We term this process TPE-OLD for ‘‘telomere position effect over long distances.’’ Our results suggest a potential novel mechanism for how telomere shortening could contribute to aging and disease initiation/progression in human cells long before the induction of a critical DNA damage response.

Original languageEnglish (US)
Pages (from-to)2464-2476
Number of pages13
JournalGenes and Development
Volume28
Issue number22
DOIs
StatePublished - Nov 15 2014

Fingerprint

Telomere Shortening
Telomere
Gene Expression Regulation
Genes
DNA Damage
Chromatin
Complement C1s
Desmoplakins
Chromosomes, Human, 6-12 and X
Untranslated RNA
Fluorescence In Situ Hybridization
Interferons
Disease Progression

Keywords

  • Age-dependent gene expression
  • Cancer
  • Chromatin
  • Chromosome looping
  • Replicative aging
  • Senescence
  • Telomerase

ASJC Scopus subject areas

  • Genetics
  • Developmental Biology
  • Medicine(all)

Cite this

Telomere position effect : Regulation of gene expression with progressive telomere shortening over long distances. / Robin, Jérôme D.; Ludlow, Andrew T.; Batten, Kimberly; Magdinier, Frédérique; Stadler, Guido; Wagner, Kathyrin R.; Shay, Jerry W.; Wright, Woodring E.

In: Genes and Development, Vol. 28, No. 22, 15.11.2014, p. 2464-2476.

Research output: Contribution to journalArticle

Robin, Jérôme D. ; Ludlow, Andrew T. ; Batten, Kimberly ; Magdinier, Frédérique ; Stadler, Guido ; Wagner, Kathyrin R. ; Shay, Jerry W. ; Wright, Woodring E. / Telomere position effect : Regulation of gene expression with progressive telomere shortening over long distances. In: Genes and Development. 2014 ; Vol. 28, No. 22. pp. 2464-2476.
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