This SuperSeries is composed of the SubSeries listed below.
Combined inhibition of receptor tyrosine and p21-activated kinases as a therapeutic strategy in childhood ALL.
Specimen part, Disease, Disease stage, Time
View SamplesThe purpose of this study was the principal investigation and frequency of RTK expression in primary T-ALLs. Primary initial T-ALLs were assessed regarding their transcriptome-wide expression profiles and screend for prominent RTK expression.
Combined inhibition of receptor tyrosine and p21-activated kinases as a therapeutic strategy in childhood ALL.
Disease, Disease stage
View SamplesDeregulated RTK activity has been implicated as a causal leukemogenic factor in the context of molecular aberrations that perturb differentiation in the hematopoietic lineage such as in childhood ALL. A deeper understanding of RTK signaling processes on a system-wide scale will be key in defining critical components of signaling networks. To link RTK activity with in vivo output in primary ALL we took a functional approach, which combined SH2 domain binding, mass spectrometry, and transcriptome analyses. Structure and composition of evolving networks were highly diverse with few generic features determined by receptor and cell type. A combinatorial assembly of varying context-dependent and few generic signaling components at multiple levels likely generates output specificity. PAK2 was identified as a phosphoregulated FLT3 target, whose allosteric inhibition resulted in apoptosis of ALL cells. Our studies provide evidence that a functional approach to leukemia signaling may yield valuable information for a network-directed intervention.
Combined inhibition of receptor tyrosine and p21-activated kinases as a therapeutic strategy in childhood ALL.
Specimen part, Time
View SamplesEctopic expression of DNMT3L in Drosophila causes melanotic tumor in the transgenic flies from fifth generation onwards.
DNMT3L enables accumulation and inheritance of epimutations in transgenic Drosophila.
Specimen part
View SamplesCD24 is a potential oncogene reported to be overexpressed in a large variety of human malignancies. We have shown that CD24 is overexpressed in 90% of colorectal tumors at a fairly early stage in the multistep process of carcinogenesis. Anti-CD24 monoclonal antibodies (mAb) induce a significant growth inhibition in colorectal and pancreatic cancer cell lines that express the protein. This study is designed to investigate further the effects of CD24 down-regulation using mAb or small interfering RNA in vitro and in vivo. Western blot analysis showed that anti-CD24 mAb induced CD24 protein down-regulation through lysosomal degradation. mAb augmented growth inhibition in combination with five classic chemotherapies. Xenograft models in vivo showed that tumor growth was significantly reduced in mAb-treated mice. Similarly, stable growth inhibition of cancer cell lines was achieved by down-regulation of CD24 expression using short hairpin RNA (shRNA). The produced clones proliferated more slowly, reached lower saturation densities, and showed impaired motility. Most importantly, down-regulation of CD24 retarded tumorigenicity of human cancer cell lines in nude mice. Microarray analysis revealed a similar pattern of gene expression alterations when cells were subjected to anti-CD24 mAb or shRNA. Genes in the Ras pathway, mitogenactivated protein kinase, or BCL-2 family and others of oncogenic association were frequently down-regulated. As a putative new oncogene that is overexpressed in gastrointestinal malignancies early in the carcinogenesis process, CD24 is a potential target for early intervention in the prevention and treatment of cancer.
Targeting CD24 for treatment of colorectal and pancreatic cancer by monoclonal antibodies or small interfering RNA.
Specimen part, Cell line
View SamplesTumors have the capacity to trigger the formation of blood vessels allowing them to spread to other body parts. We examined here the stem cells that form arteries and veins within tumors and propose that their inhibition reduces metastatic spread. Overall design: Examination of dynamics and differentiation of tissue resident endothelial hierarchy in a melanoma setting
Endovascular progenitors infiltrate melanomas and differentiate towards a variety of vascular beds promoting tumor metastasis.
Specimen part, Subject
View SamplesA series contains a set of transcript intensity values measured by Affymetrix microarray.
Systems-level analysis of cell-specific AQP2 gene expression in renal collecting duct.
Sex, Specimen part
View SamplesThis series of microarray data contain transcript intensity of mpkCCD cells.
Systems-level analysis of cell-specific AQP2 gene expression in renal collecting duct.
No sample metadata fields
View SamplesFreshly isolated rat kidney proximal tubules were subjected for transcript profiling.
Systems-level analysis of cell-specific AQP2 gene expression in renal collecting duct.
Sex, Specimen part
View SamplesFreshly isolated rat kidney medullary thick ascending limbs were subjected for transcript profiling.
Systems-level analysis of cell-specific AQP2 gene expression in renal collecting duct.
Sex, Specimen part
View Samples