High expression of cyclin D1 is associated to high proliferation rate and increased risk of mortality in women with ER-positive but not in ER-negative breast cancers [PDF]
Cyclin D1 has a central role in cell cycle control and is an important component of estrogen regulation of cell cycle progression. We have previously shown that high cyclin D expression is related to aggressive features of ER-positive but not ER-negative
Ahlin, Cecilia+5 more
core +1 more source
Cyclin D mediates tolerance of genome-doubling in cancers with functional p53. [PDF]
BACKGROUND: Aneuploidy and chromosomal instability (CIN) are common features of human malignancy that fuel genetic heterogeneity. Although tolerance to tetraploidization, an intermediate state that further exacerbates CIN, is frequently mediated by TP53 ...
Crockford A+13 more
europepmc +3 more sources
A yeast cell cycle pulse generator model shows consistency with multiple oscillatory and checkpoint mutant datasets [PDF]
The regulatory mechanisms driving progression of the yeast cell cycle appears to be comprised of an interacting network of transcription factors (TFs), cyclin-dependent kinases (CDK) and ubiquitin ligases. From a systems perspective the controlling regulatory network must produce robust periodic behavior during proliferative phases, but have the ...
arxiv
Using a hydrogen-bond index to predict the gene-silencing efficiency of siRNA based on the local structure of mRNA [PDF]
The gene silencing effect of short interfering RNA (siRNA) is known to vary strongly with the targeted position of the mRNA. A number of hypotheses have been suggested to explain this phenomenon. We would like to test if this positional effect is mainly due to the secondary structure of the mRNA at the target site.
arxiv +1 more source
Overexpression of Mouse D-Type Cyclins Accelerates G(1) Phase in Rodent Fibroblasts [PDF]
Mammalian D-type cyclins are growth factor-regulated, delayed early response genes that are presumed to control progression through the G1 phase of the cell cycle by governing the activity of cyclin-dependent kinases (cdks).
Ashmun, R. A.+6 more
core +1 more source
Investigation of the impact of PTMs on the protein backbone conformation [PDF]
Post-Translational Modifications (PTMs) are known to play a critical role in the regulation of the protein functions. Their impact on protein structures, and their link to disorder regions have already been spotted on the past decade. Nonetheless, the high diversity of PTMs types, and the multiple schemes of protein modifications (multiple PTMs, of ...
arxiv +1 more source
CDK-independent activities of D type cyclins [PDF]
D type cyclins are major downstream targets of extracellular signaling pathways which act to transduce mitogenic signals to the cell cycle machinery. Transcriptional induction of D type cyclins occurs in response to a wide variety of mitogenic stimuli, including the Ras signaling cascade [1,2] and the APC-L-catenin-Tcf/Lef pathway [3].
openaire +3 more sources
Mouse Development and Cell Proliferation in the Absence of D-Cyclins [PDF]
D-type cyclins (cyclins D1, D2, and D3) are regarded as essential links between cell environment and the core cell cycle machinery. We tested the requirement for D-cyclins in mouse development and in proliferation by generating mice lacking all D-cyclins. We found that these cyclin D1(-/-)D2(-/-)D3(-/-) mice develop until mid/late gestation and die due
Kozar, K+11 more
openaire +5 more sources
Bifurcation analysis of a model of the budding yeast cell cycle [PDF]
We study the bifurcations of a set of nine nonlinear ordinary differential equations that describe the regulation of the cyclin-dependent kinase that triggers DNA synthesis and mitosis in the budding yeast, Saccharomyces cerevisiae. We show that Clb2-dependent kinase exhibits bistability (stable steady states of high or low kinase activity).
arxiv +1 more source
Repression of cyclin D1 as a target for germ cell tumors [PDF]
Metastatic germ cell tumors (GCT) are curable, however GCTs refractory to cisplatin-based chemotherapy have a poor prognosis. This study explores D-type cyclins as molecular targets in GCTs because all-trans-retinoic acid (RA)-mediated differentiation of
Bee, Thomas+10 more
core