Hyperthermia (HT) treatments in combination with either chemotherapy, radiotherapy or both are used for patients with cancer in various organs. However, the acquisition of thermotolerance in cancer cells due to the increase in cytoprotective proteins attenuates the therapeutic effects of HT. BAG3 (BCL2-associated athanogene 3) is a cytoprotective protein that acts against various stresses including heat stress. Recently, we demonstrated that the inhibition of BAG3 improves cell death sensitivity to HT in cancer cells. However, a detailed molecular mechanism involved in the enhancement of HT sensitivity by BAG3-knockdown (KD) in cancer cells is unclear.
Network analysis of genes involved in the enhancement of hyperthermia sensitivity by the knockdown of BAG3 in human oral squamous cell carcinoma cells.
Sex, Age, Specimen part, Cell line
View SamplesHyperthermia (HT) is widely used to treat patients with various cancers. In general, HT elicits a wide spectrum of stress responses, such as induction of heat shock proteins, protein aggregation and cell death in mammalian cells. Although many biological processes are affected by HT, the overall responses to HT in mammalian cells remain unknown.
Identification of common gene networks responsive to mild hyperthermia in human cancer cells.
Specimen part, Cell line, Treatment, Time
View SamplesHyperthermia (HT) is widely used to treat patients with various cancers. In general, HT elicits a wide spectrum of stress responses such as induction of heat shock proteins, protein aggregation and cell death in mammalian cells. Although many biological processes are affected by HT, the overall responses to HT in mammalian cells remain unknown.
Identification of common gene networks responsive to mild hyperthermia in human cancer cells.
Sex, Age, Specimen part, Cell line, Treatment
View SamplesAlthough an appropriate range of fluoride is thought to be safe and effective, excessive fluoride intake results in toxic effects in either hard tissues of teeth and skeleton or soft tissues of kidney, lung and brain. It is also well known that fluoride at a millimolar range elicits the complex cellular responses such as enzyme activity, signal transduction and apoptosis in many kinds of cells. However, its toxic effects are still unclear.
Genes and gene networks involved in sodium fluoride-elicited cell death accompanying endoplasmic reticulum stress in oral epithelial cells.
Specimen part, Cell line, Treatment, Time
View SamplesBasal cell carcinoma (BCC) is the most frequent malignant tumor of the eyelid. However, there is limited understanding of how altered gene expression of BCC of the eyelid related to the pathogenesis.
Gene networks in basal cell carcinoma of the eyelid, analyzed using gene expression profiling.
Age, Specimen part
View SamplesBAG3 (BCL2-associated athanogene 3) is a member of the BAG protein family. BAG3 affects a wide variety of cellular events including cell proliferation, apoptosis and autophagy. Recently our data demonstrated that knockout (KO) of BAG3 induces the cell growth arrest in human cervical carcinoma HeLa cells.
Identification of genes and genetic networks associated with BAG3‑dependent cell proliferation and cell survival in human cervical cancer HeLa cells.
Cell line
View SamplesCold atmospheric pressure plasma (CAP) is known as a source of biologically active agents, such as reactive oxygen species (ROS) and reactive nitrogen species (RNS). Recent medical investigations have focused on applying CAP to cancer treatment. There is also growing evidence that exposure of cells to CAP or CAP-activated medium induces apoptosis in cancer cells, and ROS and/or RNS are considered to be effective agents to CAP-induced apoptosis. More recently, we demonstrated that Ar-CAP or Ar containing 2.5 % of N2 (Ar-N2-CAP) significantly induced apoptosis in human lymphoma U937 cells. However, a detailed molecular mechanism underling the induction of apoptosis by CAP in cancer cells is unclear.
Effects of nitrogen on the apoptosis of and changes in gene expression in human lymphoma U937 cells exposed to argon-based cold atmospheric pressure plasma.
Sex, Age, Specimen part, Cell line, Treatment
View SamplesThe use of in vitro cell culture systems has been of central importance for research of physiology, pharmacology, and toxicology, and functions at the cellular and molecular levels. We have developed an immortalized oral epithelial cell line ROE2 from fetal transgenic rats harboring temperature-sensitive simian virus 40 large T-antigen. Here, to identify genes involved in ROE2 cell differentiation, global-scale gene expression analysis was carried out using a GeneChip system.
Development of oral epithelial cell line ROE2 with differentiation potential from transgenic rats harboring temperature-sensitive simian virus40 large T-antigen gene.
Specimen part, Cell line, Treatment, Time
View SamplesThis SuperSeries is composed of the SubSeries listed below.
PI3K inhibition synergizes with glucocorticoids but antagonizes with methotrexate in T-cell acute lymphoblastic leukemia.
Sex, Age, Specimen part, Cell line
View SamplesThe PI3K pathway is frequently hyperactivated in primary T-cell acute lymphoblastic leukemia (T-ALL) cells. Activation of the PI3K pathway has been suggested as one mechanism of glucocorticoid resistance in T-ALL, and patients harboring mutations in the PI3K negative regulator PTEN may be at increased risk of induction failure and relapse. In this study, we identified Myc as an important downstream integrator of PI3K pathway activity in T-ALL and we provide data supportive of an association of higher PI3K activity with glucocorticoid resistance and worse clinical outcome. The PI3K inhibitor AS605240 showed anti-leukemic activity and strong synergism with glucocorticoids both in vitro and in a NOD/SCID xenograft model of T-ALL. In contrast, PI3K inhibition showed antagonism with methotrexate and daunorubicin, drugs that preferentially target dividing cells. This antagonistic interaction, however, could be circumvented by the use of correct drug scheduling schemes. Our data indicate the potential benefits and difficulties for the incorporation of PI3K inhibitors in T-ALL therapy.
PI3K inhibition synergizes with glucocorticoids but antagonizes with methotrexate in T-cell acute lymphoblastic leukemia.
Sex, Age, Specimen part
View Samples