Concept

Cytogenetics

Related publications (34)

Whole-genome doubling drives oncogenic loss of chromatin segregation

Elisa Oricchio, Daniele Tavernari, Natalya Katanayeva, Ruxandra-Andreea Lambuta, Juan Diaz Miyar, Giovanni Ciriello

Whole-genome doubling (WGD) is a recurrent event in human cancers and it promotes chromosomal instability and acquisition of aneuploidies(1-8). However, the three-dimensional organization of chromatin in WGD cells and its contribution to oncogenic phenotyp ...

NATURE PORTFOLIO2023

Challenging endings: How telomeres prevent fragility

Joachim Lingner

It has become apparent that difficulties to replicate telomeres concern not only the very ends of eukaryotic chromosomes. The challenges already start when the replication fork enters the telomeric repeats. The obstacles encountered consist mainly of nonca ...

WILEY2021

Histone acetylation dynamics modulates chromatin conformation and allele-specific interactions at oncogenic loci

Elisa Oricchio, Daniele Tavernari, Natalya Katanayeva, Stephanie Jocelyne Sungalee, Ruxandra-Andreea Lambuta, Giovanni Ciriello

In cancer cells, enhancer hijacking mediated by chromosomal alterations and/or increased deposition of acetylated histone H3 lysine 27 (H3K27ac) can support oncogene expression. However, how the chromatin conformation of enhancer-promoter interactions is a ...

2021

Infrared nanospectroscopic mapping of a single metaphase chromosome

Giovanni Dietler, Andrzej Kulik, Francesco Simone Ruggeri, Ewelina Wioletta Lipiec

The integrity of the chromatin structure is essential to every process occurring within eukaryotic nuclei. However, there are no reliable tools to decipher the molecular composition of metaphase chromosomes. Here, we have applied infrared nanospectroscopy ...

Oxford University Press (OUP)2019

Revealing chromatin organization in metaphase chromosomes

Beat Fierz

The local structural organization of chromatin in mitotic chromosomes is not well understood. A new cryo-electron tomography study from the Daban laboratory (Chicano et al, ) reveals that mitotic chromatin isolated from human cells can assume a plate-like ...

WILEY2019

Histone Modifications in Development and Malignancy

Elisa Oricchio

Non-Hodgkin lymphoma (NHL) development is driven by the accumulations of multiple genetic, epigenetic, and chromosomal alterations. These lesions can lead to modifications of the chromatin architecture. To identify novel oncogenic interactions driven by mo ...

AMER SOC HEMATOLOGY2019

Photophysical Heavy-Atom Effect in Iodinated Metallocorroles: Spin-Orbit Coupling and Density of States

Majed Chergui, Enrico Pomarico, Marine Eva Fedora Bouduban

Excited-state dynamics and electronic structures of Al and Ga corrole complexes were studied as a function of the number of beta-pyrrole iodine substituents. Using spectrally broad-band femtosecond-resolved fluorescence upconversion, we determined the kine ...

AMER CHEMICAL SOC2018

Improvement of breast cancer diagnosis through microfluidics

Huu Tuan Nguyen

In breast cancer, 15-20% of cases are reported with overexpression of human epidermal growth factor receptor 2 (HER2) that causes rapid cancer progression and poor prognosis. Fortunately, HER2-targeted therapy using specific antibodies such as Trastuzumab ...

EPFL2018

Differential signaling networks of Bcr-Abl p210 and p190 kinases in leukemia cells defined by functional proteomics

Romain Hamelin, Sandrine Madeleine Suzanne Georgeon, Oliver Hantschel, Sina Maren Reckel

The two major isoforms of the oncogenic Bcr-Abl tyrosine kinase, p210 and p190, are expressed upon the Philadelphia chromosome translocation. p210 is the hallmark of chronic myelogenous leukemia, whereas p190 occurs in the majority of B-cell acute lymphobl ...

Nature Publishing Group2017

Functional Dissection of Intersubunit Interactions in the EspR Virulence Regulator of Mycobacterium tuberculosis

Stewart Cole, Giovanni Dietler, Matteo Dal Peraro, Florence Pojer, Marco Stenta, Aleksandre Japaridze, Benjamin Blasco, Basile Isidore Martin Wicky

The nucleoid-associated protein EspR, a chromosome organizer, has pleiotropic effects on expression of genes associated with cell wall function and pathogenesis in Mycobacterium tuberculosis. In particular, EspR binds to several sites upstream of the espAC ...

Amer Soc Microbiology2014

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