| 2. |
- Paulson, Linda, 1971, et al.
(author)
-
Comparative genome- and proteome analysis of cerebral cortex from MK-801-treated rats.
- 2003
-
In: Journal of neuroscience research. - : Wiley. - 0360-4012 .- 1097-4547. ; 71:4, s. 526-33
-
Journal article (peer-reviewed)abstract
- cDNA microarrays and two-dimensional gel-electrophoresis in combination with mass spectrometry, were used to screen alterations in mRNA and protein levels, respectively, in cerebral cortex of MK-801-treated rats. The rats were divided in two groups; group 1 (short-term treated) and group 2 (long-term treated). In group 1, four genes were up-regulated and five down-regulated. In group 2, seven genes were up-regulated and six down-regulated. In group 1, the levels of one protein was increased and eight proteins reduced. In group 2, the levels of two proteins were increased and four proteins reduced. Several of the altered genes (casein kinase 2, glutamic acid decarboxylase, synaptotagmin, gamma aminobutyric acid [GABA] transporter, creatine kinase, and cytochrome c oxidase) and proteins (superoxide dismutase, hsp 60, hsp 72 and gamma-enolase) have previously been connected to schizophrenia. Alterations of the genes (microglobulin, c-jun proto-oncogene, 40S ribosomal protein S19, adenosine diphosphate (ADP)-ribosylation factors, platelet-derived growth factor, fructose-bisphophate aldolase A, and myelin proteolipid) and the proteins (stathmin, H+-transp. Adenosine triphosphate (ATP) synthase, pyruvate dehydrogenase, beta-actin and alpha-enolase), have not, to our knowledge, earlier been implicated in schizophrenia pathology. Overall, these results with a combined approach of genomics and proteomics add to the validity of subchronic N-methyl-D-aspartate (NMDA)-receptor antagonist treatment as an animal model of schizophrenia.
|
|
| 3. |
- Thorsell, Annika, 1973, et al.
(author)
-
Proteome analysis of serum containing conditioned medium from primary astrocyte cultures
- 2008
-
In: Journal of Proteomics & Bioinformatics. - 0974-276X. ; 1:3, s. 128-142
-
Journal article (peer-reviewed)abstract
- Development of strategies that allow for identification of secreted factors in conditioned media is of significance for a wide range of research areas. Secreted factors are involved in intercellular communication and might also be biomarkers of potential clinical importance, used for early detection and diagnosis of disease. The aim of this study was to investigate whether metabolic labeling combined with mass spectrometry could be used to identify secreted proteins in serum-containing conditioned medium. Earlier proteomic studies of conditioned media have been performed on cells cultured in serum-free media. In the present study the fact that only the proteins derived from the cells contain the incorporated isotopically labeled amino acid was taken advantage of, making it possible to differentiate released proteins from medium proteins. The second objective was to examine whether any quantitative differences in the secretion profiles between primary astrocytes and astrocytes in a scratch injury model of reactive astrogliosis could be found. To our knowledge, this is the first study to identify secreted proteins in serum-containing medium using a proteomic approach involving stable isotope labeling by amino acids in cell cultures and mass spectrometry.
|
|
