Project description:Human Polynucleotide Phosphorylase (hPNPaseold-35) is an evolutionarily conserved 3’→5’ exoribonuclease implicated in the regulation of numerous physiological processes like maintenance of mitochondrial homeostasis, mtRNA import and aging-associated inflammation. From an RNase perspective, little is known about the RNA or miRNA species it targets for degradation or whose expression it regulates; except for c-myc and miR-221. To further elucidate the functional implications of hPNPaseold-35 in cellular physiology, we knocked-down and overexpressed hPNPaseold-35 in melanoma cells and performed gene expression analyses to identify differentially expressed transcripts. Biological triplicates were run on microarrays.

2013-07-30 | E-GEOD-46884 | biostudies-arrayexpress

Analysis of global changes in gene expression induced by human polynucleotide phosphorylase (hPNPaseold-35)

Project description:Human Polynucleotide Phosphorylase (hPNPaseold-35) is an evolutionarily conserved 3’?5’ exoribonuclease implicated in the regulation of numerous physiological processes like maintenance of mitochondrial homeostasis, mtRNA import and aging-associated inflammation. From an RNase perspective, little is known about the RNA or miRNA species it targets for degradation or whose expression it regulates; except for c-myc and miR-221. To further elucidate the functional implications of hPNPaseold-35 in cellular physiology, we knocked-down and overexpressed hPNPaseold-35 in melanoma and HeLa cells, respectively, and performed gene expression analyses to identify differentially expressed transcripts. Biological triplicates were run on microarrays.

2014-06-01 | E-GEOD-53604 | biostudies-arrayexpress

Homo sapiens MSCs: Normoxia vs. Hypoxia

Project description:Transcriptional profiling of human mesenchymal stem cells comparing normoxic MSCs cells with hypoxic MSCs cells. Hypoxia may inhibit senescence of MSCs during expansion. Goal was to determine the effects of hypoxia on global MSCs gene expression.

2011-02-19 | GSE20463 | GEO

Homo sapiens immortalized MSCs: KP vs. 3A6

Project description:Gene methylation profiling of immortalized human mesenchymal stem cells comparing HPV E6/E7-transfected MSCs cells with human telomerase reverse transcriptase (hTERT)- and HPV E6/E7-transfected MSCs. hTERT may increase gene methylation in MSCs. Goal was to determine the effects of different transfected genes on global gene methylation in MSCs.

2011-08-25 | GSE23936 | GEO

Dermal lymphatic endothelial cell response to type 2 diabetes [Homo sapiens]

Project description:Analysis of ex vivo isolated lymphatic endothelial cells from the dermis of patients to define type 2 diabetes-induced changes. Results preveal aberrant dermal lymphangiogenesis and provide insight into its role in the pathogenesis of persistent skin inflammation in type 2 diabetes. The ex vivo dLEC transcriptome reveals a dramatic influence of the T2D environment on multiple molecular and cellular processes, mirroring the phenotypic changes seen in T2D affected skin. The positively and negatively correlated dLEC transcripts directly cohere to prolonged inflammatory periods and reduced infectious resistance of patientsÂ´ skin. Further, lymphatic vessels might be involved in tissue remodeling processes during T2D induced skin alterations associated with impaired wound healing and altered dermal architecture. Hence, dermal lymphatic vessels might be directly associated with T2D disease promotion. Global gene expression profile of normal dermal lymphatic endothelial cells (ndLECs) compared to dermal lymphatic endothelial cells derived from type 2 diabetic patients (dLECs).Quadruplicate biological samples were analyzed from human lymphatic endothelial cells (4 x diabetic; 4 x non-diabetic). subsets: 1 disease state set (dLECs), 1 control set (ndLECs)

2012-06-01 | E-GEOD-38396 | biostudies-arrayexpress

E-GEOD-46884

Project description:Gene Expression Signature of Human Polynucleotide Phosphorylase (hPNPaseold-35) in Melanoma

2015-06-18 | E-GEOD-46884 | ExpressionAtlas