Results 81 to 90 of about 124,493 (360)

Long non‐coding RNAs as therapeutic targets in head and neck squamous cell carcinoma and clinical application

FEBS Open Bio, EarlyView.
Long non‐coding RNAs (lncRNAs) occupy an abundant fraction of the eukaryotic transcriptome and an emerging area in cancer research. Regulation by lncRNAs is based on their subcellular localization in HNSCC. This cartoon shows the various functions of lncRNAs in HNSCC discussed in this review.
Ellen T. Tran, Ruchi A. Patel, Amogh Chariyamane, Ratna B. Ray   +3 more
wiley   +1 more source

Heterochromatin: an epigenetic point of view in aging

Experimental and Molecular Medicine, 2020
Aging is an inevitable process of life. Defined by progressive physiological and functional loss of tissues and organs, aging increases the risk of mortality for the organism.
Jong-Hyuk Lee, Edward Kim, D. Croteau, V. Bohr   +3 more
semanticscholar   +1 more source

Ribosomal DNA heterochromatin in plants [PDF]

Cytogenetic and Genome Research, 2005
The aim of this review is to integrate earlier results and recent findings to present the current state-of-the-art vision concerning the dynamic behavior of the ribosomal DNA (rDNA) fraction in plants. The global organization and behavioral features of rDNA make it a most useful system to analyse the relationship between chromatin topology and gene ...
Neves, N., Delgado, M., Silva, M., Caperta, A., Morais-Cecilio, L., Viegas, W.   +5 more
openaire   +4 more sources

Hyperoxia Induced Alteration of Chromatin Structure in Human Bone Marrow Derived Primary Mesenchymal Stromal Cells

Advanced Biology, EarlyView.
Chromatin, which organizes DNA, changes its structure to adapt to stress like high oxygen levels (hyperoxia), which can damage cells. Researchers developed a technique to observe these changes and found variability in how different parts of chromatin remodel.
Lauren Monroe, Samantha Kaonis, Natalie Calahan, Neda Kabi, Soham Ghosh   +4 more
wiley   +1 more source

Investigation of marmoset hybrids (Cebuella pygmaea x Callithrix jacchus) and related Callitrichinae (Platyrrhini) by cross-species chromosome painting and comparative genomic hybridization [PDF]

, 2005
We report on the cytogenetics of twin offspring from an interspecies cross in marmosets (Callitrichinae, Platyrrhini), resulting from a pairing between a female Common marmoset (Callithrix jacchus, 2n = 46) and a male Pygmy marmoset (Cebuella pygmaea, 2n
Canavez FC, Dugoujon JM, G. Anzenberger, M. Münch, M. Neusser, Moore CM, Muller S, Muller S, Natori M, Pellicciari C, Ratomponirina C, Rosenberger AL, Rumpler Y, Rylands AB, S. Müller, Yunis E   +15 more
core   +1 more source

H3K9me3-heterochromatin loss at protein-coding genes enables developmental lineage specification

Science, 2019
Reversing chromatin dynamics for development Compacted chromatin regions, marked by trimethylation of histone H3 at position lysine 9 (H3K9me3), occur at highly repeated DNA sequences, helping to suppress recombination and gene expression.
Dario Nicetto, G. Donahue, Tanya Jain, Tao Peng, Simone Sidoli, Lihong Sheng, Thomas Montavon, Justin S. Becker, Jessica Grindheim, Kimberly R. Blahnik, B. Garcia, Kai Tan, R. Bonasio, T. Jenuwein, K. Zaret   +14 more
semanticscholar   +1 more source

The histone variant H2A.W and linker histone H1 co-regulate heterochromatin accessibility and DNA methylation

Nature Communications, 2020
In flowering plants, heterochromatin is demarcated by the histone variant H2A.W, elevated levels of the linker histone H1, and specific epigenetic modifications, such as high levels of DNA methylation at both CG and non-CG sites.
Pierre Bourguet, Colette L. Picard, Ramesh Yelagandula, T. Pélissier, Z. Lorković, S. Feng, M. Pouch-Pélissier, A. Schmücker, S. Jacobsen, F. Berger, O. Mathieu   +10 more
semanticscholar   +1 more source

Retrotransposon Expression Is Upregulated in Adulthood and Suppressed during Regeneration of the Limb in the Axolotl (Ambystoma mexicanum)

Advanced Biology, EarlyView.
The axolotl's remarkable regenerative abilities decline with age, the causes may include the numerous repetitive elements within its genome. This study uncovers how Ty3 retrotransposons and coexpression networks involving muscle and immune pathways respond to aging and regeneration, suggesting that transposons respond to physiological shifts and may ...
Samuel Ruiz‐Pérez, Nicolás Alcaraz, Karla Torres‐Arciga, José Antonio Ocampo‐Cervantes, Alejandra Cervera, Clementina Castro‐Hernández, Cynthia Gabriela Sámano‐Salazar, Ernesto Soto‐Reyes, Rodrigo González‐Barrios   +8 more
wiley   +1 more source

Targeting and regulatory mechanisms in chromosome-wide gene regulation using Drosophila melanogaster as a model organism [PDF]

, 2010
Tese de mestrado. Biologia (Biologia Molecular e Genética). Universidade de Lisboa, Faculdade de Ciências, 2010O cromossoma 4 de Drosophila melanogaster é muito heterocromático, sendo rico em DNA satélite e DNA de elementos transposáveis. Apesar das suas
Figueiredo, Ana Margarida Adónis, 1986-
core  

Cytological features of penaut genome [PDF]

, 2017
The genus Arachis is composed of 82 species (Krapovickas and Gregory 1994; Valls and Simpson 2005; Valls et al 2013; Santana and Valls 2015) mainly distributed within a large region of South America, which extends from the eastern foothills of the Andes ...
Chalup, Laura María Isabel, Lavia, Graciela Inés, Ortiz, Alejandra Marcela, Robledo Dobladez, Germán Ariel, Samoluk, Sergio Sebastián, Seijo, José Guillermo, Silvestri, María Celeste   +6 more
core   +1 more source