Results 71 to 80 of about 227,102 (266)

Biochemical characterizations reveal different properties between CDK4/cyclin D1 and CDK2/cyclin A [PDF]

Experimental & Molecular Medicine, 2003
CDK2 and CDK4 known promoter of cell cycling catalyze phosphorylation of RB protein. Enzyme specificity between two CDKs that work at a different cell cycle phase is not clearly understood. In order to define kinase properties of CDK2 and CDK4 in complex with cycline A or cycline D1 in relation to their respective role in cell cycling regulation, we ...
Dong-Myung, Kim, Kyungmi, Yang, Beom-Seok, Yang   +2 more
openaire   +2 more sources

Engineered ETS1‐Nanoconjugate Restores Immune Homeostasis through Dual Immune‐Vascular Modulation in Relapsing and Progressive Multiple Sclerosis

Advanced Healthcare Materials, EarlyView.
The biomimetic nanoplatform IMNP (ETS1 pDNA/PBAE@ITP‐MM) undergoes targeted disassembly at inflammatory vascular sites to release the ETS1 plasmid (pETS1). This release initiates a cascade of effects that inhibit pathogenic pathways and support immune homeostasis. (Abbreviations: EndMT, endothelial‐to‐mesenchymal transition; EC, endothelial cell; TC, T
Feng Zhang, Si‐Bo Yang, Yan Luo, Xiao‐Di Sun, Bo‐Hao Chang, Da‐Qiang Zhou, Jun‐Jie Jiang, Ya‐Nan Li, Jie‐Hong Wu, Hui‐Juan Jin, Hang Yang, Hang Hu, Yi‐Fan Zhou, Bo Hu   +13 more
wiley   +1 more source

3D Soft Hydrogels Induce Human Mesenchymal Stem Cells “Deep” Quiescence

Advanced Healthcare Materials, EarlyView.
Three‐dimensional soft hydrogels mimicking the bone marrow niche induce deep quiescence in human mesenchymal stem cells. Unlike 2D culture, 3D matrices halt proliferation, regulate cell‐cycle and quiescence markers, and downregulate mTORC1 signaling, preserving stem cell phenotype and therapeutic potential ex vivo.
David Boaventura Gomes, Timo Rademakers, Ana Filipa Henriques Lourenço, Andrea Calore, Clarissa Tomasina, Denis van Beurden, Jinjie Venema, Bryan Chömpff, Hong Liu, Nicole Bouvy, Sandra Camarero‐Espinosa, Lorenzo Moroni   +11 more
wiley   +1 more source

Induction of the HIV-1 Tat co-factor cyclin T1 during monocyte differentiation is required for the regulated expression of a large portion of cellular mRNAs

Retrovirology, 2006
Background P-TEFb, a general RNA polymerase II elongation factor, is composed of CDK9 (cyclin-dependent kinase 9) as a catalytic unit and either cyclin T1, T2 or K as a regulatory subunit.
Qin Xiao-Feng, Shaw Chad A, Wang Yan, Yu Wendong, Rice Andrew P   +4 more
doaj   +1 more source

Bufalin Inhibits the PI3K/AKT Pathway by Targeting GTF3C4 to Impede Breast Cancer Progression

Advanced Science, EarlyView.
Mechanisms of Bufalin‐Mediated Intervention in Breast Cancer. ABSTRACT Breast cancer incidence is rising globally, presenting challenges such as treatment side effects and drug resistance. Bufalin is a bufadienolides compound with potential anti‐cancer effects. This study shows that bufalin inhibits malignant proliferation of MDA‐MB‐231 and MCF‐7 cells
Siyu Guo, Xiaodong Chen, Haojia Wang, Jiying Zhou, Peiying Lu, Jiangying Liu, Keyan Chai, Jingyuan Zhang, Siyun Yang, Shan Lu, Yifei Gao, Zhengsen Jin, Xiaoyu Tao, Zhongdong Hu, Qinglin Li, Jiarui Wu   +15 more
wiley   +1 more source

Epidermal growth factor promotes cyclin G2 degradation via calpain-mediated proteolysis in gynaecological cancer cells.

PLoS ONE, 2017
Cyclin G2 (CCNG2) is an atypical cyclin that functions to inhibit cell cycle progression and is often dysregulated in human cancers. We have previously shown that cyclin G2 is highly unstable and can be degraded through the ubiquitin/proteasome pathway ...
Stefanie Bernaudo, Shahin Khazai, Eilyad Honarparvar, Alina Kopteva, Chun Peng   +4 more
doaj   +1 more source

Microglia Mitochondria Support Neuronal Maturation via Metabolic and Transcriptional Reprogramming in Human 3D In Vitro Brain Model

Advanced Science, EarlyView.
xx xx. ABSTRACT Autism Spectrum Disorder (ASD) is a neurodevelopmental condition characterized by disrupted neuronal circuit maturation. Emerging evidence implicates microglial function and mitochondrial regulation as contributors to ASD‐associated biology, yet the mechanisms linking these processes to neuronal development remain poorly defined ...
Sydney P. Sterben, Charitha C. Anamala, Sahan B. S. Kansakar, Vaishnavi Koduri, Volha Liaudanskaya   +4 more
wiley   +1 more source

Differences in Protein Expression and Gene Amplification of Cyclins between Colon and Rectal Adenocarcinomas

Gastroenterology Research and Practice, 2009
Adenocarcinomas of rectum and colon may be different with regard to the cellular biological basis for cancer development. A material of 246 rectal cancers removed surgically at Akershus University Hospital in the years 1992–2000 was investigated and was ...
Rolf Aamodt, Kristin Jonsdottir, Solveig Norheim Andersen, Johan Bondi, Geir Bukholm, Ida R. K. Bukholm   +5 more
doaj   +1 more source

Capture and Culture of Circulating Tumor Cells Using a Biodegradable 3D Scaffold for Patient‐Derived Xenograft Construction

Advanced Science, EarlyView.
A self‐supporting, biocompatible, and biodegradable 3D cellulose scaffold has been developed for efficient isolation and in situ expansion of circulating tumor cells (CTCs) from patient blood. Subsequently, the 3D cellulose scaffold with cultured CTCs is directly implanted into immunodeficient mice for constructing patient CTC‐derived xenograft (CDX ...
Yi‐Ke Wang, Ming Wang, Min Liu, Yi‐Jing Chen, Li‐Li Xu, Jin‐Ping Zhou, Fu‐Bing Wang, Shi‐Bo Cheng, Min Xie, Wei‐Hua Huang   +9 more
wiley   +1 more source

Post-transcriptional regulation of cyclin A and B mRNAs by Bruno 1, Cup, and P-bodies

iScience
Summary: Cell cycle progression relies on tightly regulated Cyclin synthesis and degradation, with Cyclins A and B activating CDK1 to drive mitosis. Dysregulation of Cyclin levels is linked to tumorigenesis, underscoring the importance of studying cyclin
Livia V. Bayer, Samantha N. Milano, Harpreet Kaur, Zara Kumar, Diana P. Bratu   +4 more
doaj   +1 more source