Results 91 to 100 of about 157,687 (296)

A new insight into the impact of copy number variations on cell cycle deregulation of luminal-type breast cancer

Oncology Reviews
Breast cancer is the most prevalent neoplasm in women. ER+ (Luminal subtype), representing over 70% of breast tumors, is a genetically diverse group. Structural and Numerical-Chromosomal instability initiates tumor development and is recognized as the ...
Amir Mahdi Khamaneh, Davoud Jafari-Gharabaghlou, Khalil Ansarin, Khalil Ansarin, Khalil Ansarin, Pouya Pazooki, Zahra Akbarpour, Behrooz Naghili, Behrooz Naghili, Nosratollah Zarghami, Nosratollah Zarghami   +10 more
doaj   +1 more source

Chromosomal instability in Streptomyces avermitilis: major deletion in the central region and stable circularized chromosome

BMC Microbiology, 2010
Background The chromosome of Streptomyces has been shown to be unstable, frequently undergoing gross chromosomal rearrangements. However, the mechanisms underlying this phenomenon remain unclear, with previous studies focused on two chromosomal ends as ...
Wen Ying, Chen Zhi, Zhang Xiaojuan, He Fei, Chen Wei, Li Jilun   +5 more
doaj   +1 more source

Common fragile sites: protection and repair

Cell & Bioscience, 2020
Common fragile sites (CFSs) are large chromosomal regions that exhibit breakage on metaphase chromosomes upon replication stress. They become preferentially unstable at the early stage of cancer development and are hotspots for chromosomal rearrangements
Shibo Li, Xiaohua Wu
doaj   +1 more source

Common Signatures of Altered Gene Regulation and Invasiveness of Different Breast Cancer Cell Lines after Matrix Interface Crossing

Advanced Healthcare Materials, EarlyView.
Interface transmigration reprograms triple‐negative breast cancer cells, triggering a shared switch toward more aggressive and invasive phenotypes. Using a collagen I interface model, this study identifies shared transcriptional changes involving proliferation, chromatin remodeling, and DNA repair pathways.
Cornelia Clemens, Hannah Trampert, Nataliia Kotsiuba, Tilo Pompe   +3 more
wiley   +1 more source

Loss of PICH Results in Chromosomal Instability, p53 Activation, and Embryonic Lethality

Cell Reports, 2018
Summary: PICH is a DNA translocase necessary for the resolution of ultrafine anaphase DNA bridges and to ensure the fidelity of chromosomal segregation.
Eliene Albers, Mauro Sbroggiò, David Pladevall-Morera, Anna H. Bizard, Alexandra Avram, Patricia Gonzalez, Javier Martin-Gonzalez, Ian D. Hickson, Andres J. Lopez-Contreras   +8 more
doaj   +1 more source

Updating the mechanisms of common fragile site instability: how to reconcile the different views? [PDF]

, 2014
Common fragile sites (CFSs) are large chromosomal regions long identified by conventional cytogenetics as sequences prone to breakage in cells subjected to replication stress.
Anne Letessier, Benoît Le Tallec, Michelle Debatisse, Olivier Brison, Stéphane Koundrioukoff, Therese Wilhelm   +5 more
core   +1 more source

Chronic Hypoxia Disrupts Spermatogenesis Through ASXL2–EZH2–Mediated Microtubule Destabilization

Advanced Science, EarlyView.
This study reveals the mechanism by which chronic hypoxia impairs spermatogenesis via the ASXL2–EZH2 axis, hindering the transition of spermatids from round to elongated forms. Key findings reveal that under hypoxic conditions, downregulated ASXL2 expression reduces EZH2 binding to the CEP162 promoter, leading to decreased H3K27me3 modification and ...
Jun Yin, Mengjie Zhang, Wenying Liu, Wenlong Shen, Debao Li, Hongming Miao, Fang Deng, Gang Zhang, Yi Tian, Yi Zhang, Zhihu Zhao, Bing Ni   +11 more
wiley   +1 more source

Microsatellite instability induced mutations in DNA repair genes CtIP and MRE11 confer hypersensitivity to poly (ADP-ribose) polymerase inhibitors in myeloid malignancies

Haematologica, 2013
Inactivation of the DNA mismatch repair pathway manifests as microsatellite instability, an accumulation of mutations that drives carcinogenesis. Here, we determined whether microsatellite instability in acute myeloid leukemia and myelodysplastic ...
Terry J. Gaymes, Azim M. Mohamedali, Miranda Patterson, Nazia Matto, Alexander Smith, Austin Kulasekararaj, Rajani Chelliah, Nicola Curtin, Farzin Farzaneh, Sydney Shall, Ghulam J. Mufti   +10 more
doaj   +1 more source

Interactions of Antibody Drug Conjugate Anti‐Tubulin and Topoisomerase I Inhibitor Payloads with Radiotherapy to Potentiate Immunotherapy

Advanced Science, EarlyView.
Antibody drug conjugates deliver their cytotoxic anti‐tubulin or topoisomerase I inhibitor payloads to tumors through cancer cell receptor targeting. The released drug payloads induce cellular changes that interact with radiotherapy resulting in radiosensitization that improves cancer cell kill and stimulates anti‐tumor immune responses.
Jacqueline Lesperance, Bryan S. Yung, Michael M. Allevato, Marcus M Cheng, Maria F. Camargo, Robert Saddawi‐Konefka, Kanika Dhawan, Ashwyn K. Sharma, Mahsa Mortaja, Sophie Bice, Daniel J. Scanderbeg, Diego Alvarado, Jyoti Mayadev, Ramez N. Eskander, Stephen R. Adams, Pippa F. Cosper, J. Silvio Gutkind, Sunil J. Advani   +17 more
wiley   +1 more source

A bacteriophage tubulin harnesses dynamic instability to center DNA in infected cells. [PDF]

, 2014
Dynamic instability, polarity, and spatiotemporal organization are hallmarks of the microtubule cytoskeleton that allow formation of complex structures such as the eukaryotic spindle. No similar structure has been identified in prokaryotes.
Agard, David A, Chaikeeratisak, Vorrapon, Coker, Joanna KC, Erb, Marcella L, Kraemer, James A, Nonejuie, Poochit, Pogliano, Joe   +6 more
core   +2 more sources