Results 111 to 120 of about 1,693,917 (277)

Deacetylation induced nuclear condensation of HP1γ promotes multiple myeloma drug resistance

Nature Communications, 2023
The molecular mechanisms underlying acquired chemoresistance to proteasome inhibitors (PIs) in multiple myeloma (MM) remain to be explored. Here, the authors highlight the role of heterochromatin protein 1 gamma as a potential target for overcoming ...
Xin Li, Sheng Wang, Ying Xie, Hongmei Jiang, Jing Guo, Yixuan Wang, Ziyi Peng, Meilin Hu, Mengqi Wang, Jingya Wang, Qian Li, Yafei Wang, Zhiqiang Liu   +12 more
doaj   +1 more source

Low YTHDC1 Expression Upregulates FSCN1 to Promote Nuclear F‐Actin Formation and Facilitate Double‐strand DNA Breaks Repair in TMZ‐Resistant Glioblastoma

Advanced Science, EarlyView.
This study revealed that low expression of YTHDC1 in TMZ‐resistant GBM cells leads to increased FSCN1 expression, which is suppressed by m6A modification. FSCN1 activates the CDC42/N‐WASP/Arp2/3 axis in the cell nucleus by recruiting the guanine nucleotide exchange factor (GEF) family member FGD1, thereby promoting F‐actin polymerization in the nucleus.
Minglong Yang, Wanxiang Niu, Yuanfei Wang, Peng Chen, Maolin Mu, Xiaoming Zhang, Ben Xu, Shanshan Hu, Chaoshi Niu, Pengfei Wu   +9 more
wiley   +1 more source

Remodeling and destabilization of chromosome 1 pericentromeric heterochromatin by SSX proteins [PDF]

Nucleic Acids Research, 2019
AbstractRearrangement of the 1q12 pericentromeric heterochromatin and subsequent amplification of the 1q arm is commonly associated with cancer development and progression and may result from epigenetic deregulation. In many premalignant and malignant cells, loss of 1q12 satellite DNA methylation causes the deposition of polycomb factors and formation ...
Sofie Traynor, Niels Erik Møllegaard, Mikkel G Jørgensen, Nadine H Brückmann, Christina B Pedersen, Mikkel G Terp, Simone Johansen, Jerome Dejardin, Henrik J Ditzel, Morten F Gjerstorff   +9 more
openaire   +5 more sources

Material‐Induced Nuclear Deformation Controls Chromatin Architecture in Adipose Stem Cells

Advanced Science, EarlyView.
Tuning cell and cytoskeleton mechanics modulated nuclear shape and heterochromatin organization in ASCs. Distinct cytoskeletal architectures induced nuclear morphologies from oblate to prolate ellipsoids. Large elongated cells with a structured actin cap exhibited high nuclear strain, driving nuclear envelope deformation and heterochromatin ...
Carlo F. Natale, Luca Messina, Valeria Panzetta, Stefania Saporito, Costantino Menna, Maurizio Ventre, Paolo A. Netti   +6 more
wiley   +1 more source

HP1a recruitment to promoters is independent of H3K9 methylation in Drosophila melanogaster.

PLoS Genetics, 2012
Heterochromatin protein 1 (HP1) proteins, recognized readers of the heterochromatin mark methylation of histone H3 lysine 9 (H3K9me), are important regulators of heterochromatin-mediated gene silencing and chromosome structure. In Drosophila melanogaster
Margarida L A Figueiredo, Philge Philip, Per Stenberg, Jan Larsson   +3 more
doaj   +1 more source

EGR Proteins Mediate Interferon‐Independent Anti‐HSV‐1 Responses Through Viral and Host Targets

Advanced Science, EarlyView.
Early antiviral responses are typically mediated by interferons. However, during HSV‐1 infection, host early growth response (Egr) genes, which are not interferon‐stimulated genes, are quickly induced by viral protein ICP0. EGR proteins, in turn, suppress viral lytic infection by activating viral latency‐associated (LAT) and host immune regulatory ...
Shuaishuai Wang, Fujun Hou, Xunuo Jin, Yuhang Xiang, Dongli Pan   +4 more
wiley   +1 more source

HP1B is a euchromatic Drosophila HP1 homolog with links to metabolism. [PDF]

PLoS ONE, 2018
Heterochromatin Protein 1 (HP1) proteins are an important family of chromosomal proteins conserved among all major eukaryotic lineages. While HP1 proteins are best known for their role in heterochromatin, many HP1 proteins function in euchromatin as well.
Benjamin B Mills, Andrew D Thomas, Nicole C Riddle   +2 more
doaj   +1 more source

SETDB2 Mitigates Podocyte Dysfunction in Diabetic Kidney Disease Through Epigenetic Silencing of SMAD3

Advanced Science, EarlyView.
SETDB2 epigenetically represses Smad3 transcription by increasing H3K9me3 enrichment at its promoter, thereby mitigating podocyte dysfunction in DKD. The transcription factor TCF21 binds directly to the Setdb2 promoter and enhances its expression in podocytes. Abstract Podocyte dysfunction represents both an early pathological hallmark and a key driver
Lanfang Li, Shimin Jiang, Qi Jin, Peng Qu, Yingjie Guo, Xushan Lan, Xinyu Li, Cuiting Sun, Sinan Ai, Xin Li, Weiliang Sun, Jing Guo, Wenge Li, Liang Peng, Lihong Liu   +14 more
wiley   +1 more source

Interaction of RNA polymerase II and the small RNA machinery affects heterochromatic silencing in Drosophila

Epigenetics & Chromatin, 2009
Background Heterochromatin is the tightly packaged dynamic region of the eukaryotic chromosome that plays a vital role in cellular processes such as mitosis and meiotic recombination.
Kavi Harsh H, Birchler James A
doaj   +1 more source

Comprehensive analysis of the chromatin landscape in Drosophila melanogaster. [PDF]

, 2010
Chromatin is composed of DNA and a variety of modified histones and non-histone proteins, which have an impact on cell differentiation, gene regulation and other key cellular processes.
Alekseyenko, Artyom A, Bishop, Eric P, Canfield, Theresa K, Elgin, Sarah CR, Ernst, Jason, Gorchakov, Andrey A, Gu, Tingting, Jung, Youngsook L, Karpen, Gary H, Kellis, Manolis, Kharchenko, Peter V, Kuroda, Mitzi I, Larschan, Erica, Linder-Basso, Daniela, Luquette, Lovelace J, MacAlpine, David M, Minoda, Aki, Park, Peter J, Park, Richard W, Pirrotta, Vincenzo, Plachetka, Annette, Riddle, Nicole C, Sabo, Peter J, Sandstrom, Richard, Schwartz, Yuri B, Shanower, Gregory, Stamatoyannopoulos, John A, Thurman, Robert E, Tolstorukov, Michael Y, Xi, Ruibin   +29 more
core   +4 more sources