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Joachim Lingner

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Publications associées (71)

Quantitative telomeric chromatin isolation protocol for human cells

Joachim Lingner, Sophie Redon, Jana Majerská

The ends of eukaryotic chromosomes, known as telomeres, consist of repetitive DNA sequences, multiple proteins and noncoding RNAs. Telomeres are dynamic structures that play crucial roles as guardians of genome stability and tumor suppressors. Defects in t ...

2017

TZAP or not to zap telomeres

Joachim Lingner, Gérald Joseph Paul Lossaint

American Association for the Advancement of Science2017

A practical qPCR approach to detect TERRA, the elusive telomeric repeat-containing RNA

Joachim Lingner, Marianna Feretzaki

Telomeres, the heterochromatic structures that protect the ends of the chromosomes, are transcribed into a class of long non-coding RNAs, telomeric repeat-containing RNAs (TERRA), whose transcriptional regulation and functions are not well understood. The ...

2017

The telomeric DNA damage response occurs in the absence of chromatin decompaction

Joachim Lingner, Suliana Manley, Verena Pfeiffer, Aleksandra Vancevska, Kyle Michael Douglass

Telomeres are specialized nucleoprotein structures that protect chromosome ends from DNA damage response (DDR) and DNA rearrangements. The telomeric shelterin protein TRF2 suppresses the DDR, and this function has been attributed to its abilities to trigge ...

Cold Spring Harbor Laboratory2017

Nanoscale Spatial Organization of Chromatin in its Cellular Context, from Telomeres to Hox

Denis Duboule, Joachim Lingner, Suliana Manley, Verena Pfeiffer, Aleksandr Benke, Pierre Raymond Fabre, Aleksandra Vancevska, Kyle Michael Douglass

Cell Press2016

Peroxiredoxin 1 Protects Telomeres from Oxidative Damage and Preserves Telomeric DNA for Extension by Telomerase

Joachim Lingner, Viesturs Simanis, Sophie Redon, Eric Aeby, Wareed Ahmed

Oxidative damage of telomeres can promote cancer, cardiac failure, and muscular dystrophy. Specific mechanisms protecting telomeres from oxidative damage have not been described. We analyzed telomeric chromatin composition during the cell cycle and show th ...

Elsevier2016

Telomere functions grounding on TERRA firma

Joachim Lingner

Long noncoding telomeric repeat-containing RNAs TERRAs - are transcribed in a regulated manner from telomeres throughout eukaryotes. TERRA molecules consist of chromosome end-specific subtelomeric sequences and telomeric repeats at their 3' ends. Recent wo ...

Elsevier Science London2015

ALT Telomeres Get Together with Nuclear Receptors

Joachim Lingner, Eric Aeby

Nuclear receptors bind chromosome ends in "alternative lengthening of telomeres" (ALT) cancer cells that maintain their ends by homologous recombination instead of telomerase. Marzec et al. now demonstrate that, in ALT cells, nuclear receptors not only tri ...

Cell Press2015

Functional characterization of the TERRA transcriptome at damaged telomeres

Joachim Lingner, Jacques Rougemont, Antonio Porro, Sascha Feuerhahn, Julien Delafontaine

Telomere deprotection occurs during tumorigenesis and aging upon telomere shortening or loss of the telomeric shelterin component TRF2. Deprotected telomeres undergo changes in chromatin structure and elicit a DNA damage response (DDR) that leads to cellul ...

Nature Publishing Group2014

Structure of active dimeric human telomerase

Joachim Lingner

Telomerase contains a large RNA subunit, TER, and a protein catalytic subunit, TERT. Whether telomerase functions as a monomer or dimer has been a matter of debate. Here we report biochemical and labeling data that show that in vivo-assembled human telomer ...

Nature Publishing Group2013

A three-state model for the regulation of telomerase by TERRA and hnRNPA1

Joachim Lingner, Sophie Redon, Ivo Zemp

Telomeres, the physical ends of eukaryotic chromosomes, are transcribed into telomeric repeat-containing RNA (TERRA), a large non-coding RNA, which forms an integral part of telomeric heterochromatin. In vitro, naked TERRA molecules are efficient inhibitor ...

Oxford University Press2013

The THO complex component Thp2 counteracts telomeric R-loops and telomere shortening

Joachim Lingner, Jérôme Crittin, Larissa Grolimund, Verena Pfeiffer

Telomere maintenance by the conventional DNA replication machinery and telomerase is assisted by specialized DNA helicases, nucleases and telomere binding proteins. Here, we identify the THO components at telomeres and define critical roles of this complex ...

Nature Publishing Group2013

CST for the grand finale of telomere replication

Joachim Lingner, Liuh-Yow Chen

Telomeric DNA at eukaryotic chromosome ends terminates with single stranded 3' G-rich overhangs. The overhang is generated by the interplay of several dynamic processes including semiconservative DNA replication, 3' end elongation by telomerase, C-strand f ...

Landes Bioscience2013

A quantitative telomeric chromatin isolation protocol identifies different telomeric states

Joachim Lingner, Marc Moniatte, Diego Chiappe, Larissa Grolimund, Florence Armand, Romain Hamelin, Eric Aeby

Telomere composition changes during tumourigenesis, aging and in telomere syndromes in a poorly defined manner. Here we develop a quantitative telomeric chromatin isolation protocol (QTIP) for human cells, in which chromatin is cross-linked, immunopurified ...

Nature Publishing Group2013

Interplay of DNA polymerase lambda, Protection of Telomeres (Pot) 1 and TERRA in telomere elongation

Joachim Lingner

Federation Amer Soc Exp Biol2013

Molecular basis of telomere syndrome caused by CTC1 mutations

Joachim Lingner, Liuh-Yow Chen, Jana Majerská

Mutations in CTC1 lead to the telomere syndromes Coats Plus and dyskeratosis congenita (DC), but the molecular mechanisms involved remain unknown. CTC1 forms with STN1 and TEN1 a trimeric complex termed CST, which binds ssDNA, promotes telomere DNA synthes ...

Cold Spring Harbor Laboratory Press2013

Telomerase Inhibitors from Cyanobacteria: Isolation and Synthesis of Sulfoquinovosyl Diacylglycerols from

Gerardo Turcatti, Damiano Banfi, Karl Gademann, Joachim Lingner, Laeticia Da Silva, Cyril Portmann, Emilie Baudat, Tom Woods

By using the Telospot assay, 27 different extracts of cyanobacteria were evaluated for telomerase inhibition. All extracts showed varying, but significant activity. We selected Microcystis aeruguinosa PCC 7806 to identify the active compound and a bioassay ...

Wiley-Blackwell2013

The long noncoding RNA TERRA and the telomeric DNA damage response

Joachim Lingner

Wiley-Blackwell2013

Replication of Telomeres and the Regulation of Telomerase

Joachim Lingner, Verena Pfeiffer

Telomeres are the physical ends of eukaryotic chromosomes. They protect chromosome ends from DNA degradation, recombination, and DNA end fusions, and they are important for nuclear architecture. Telomeres provide a mechanism for their replication by semico ...

Cold Spring Harbor Lab Press, Publications Dept2013

Specific binding of telomeric G-quadruplexes by hydrosoluble perylene derivatives inhibits repeat addition processivity of human telomerase

Joachim Lingner

Telomerase is responsible for the immortal phenotype of cancer cells and telomerase inhibition may specifically target cancer cell proliferation. Ligands able to selectively bind to G-quadruplex telomeric DNA have been considered as telomerase inhibitors b ...

2012

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