Mouse Cytokine cDNA Plate Array

Cytokines are essential molecules play crucial roles in many biological functions, including viral infrection, inflammation, immunity, and hematopoiesis. Cytokines are produced by a variety of cell types in response to different stimuli. In addition, the expression of cytokine genes appears to be regulated by complex mechanism. Expression of one cytokine gene could be regulated by other cytokines. Dysregulation of cytokine gene expression may be caused by chromosomal alterations or by infection of viruses that induce activation or inactivation of the expression machinery. Therefore, expression profiling of cytokine genes could provide a useful appraoch to uncover the mechanism underlying the regulation. Signosis developed a plate-based array for profiling 20+ cytokine genes.

A. Benefits:

Based on Signosis' proprietary cDNA plate array detection technology, we developed mouse cytokine cDNA plate array, whcih offers following benefits:

  • Simple - Do the gene expression profiling as doing ELISA.

  • High sensitive detection- Detected mRNA molecules are converted into multiple biotin-labeled cDNAs for sensitive detection.

  • Quantitative comparison – The difference of two or more samples in gene expression can be quantitatively analyzed.

B. Principle of the technology

Signosis’ proprietary cDNA plate array is a plate-based hybridization profiling analysis for monitoring the expression of dozens of genes through reverse transcription of mRNA into cDNA. Like array analyses, total RNA is first reverse transcribed into cDNA in the presence of biotin-dUTP in the assay. Targeted genes are then specifically captured onto individual wells on a plate, instead of membranes, through a pre-coated gene-specific oligonucleotide. The captured cDNAs are further detected with streptavidin-HRP. A HRP chemiluminescent substrate is added for measurement. The concentrations of cDNAs are directly proportional to the chemiluminescent intensity of the test sample.

Figure 1
Diagram

Figure 2. Mouse cytokine cDNA plate array analysis. NIH3T3 cells were treated with (red bars) or without (light blue) 10ng/ml TNF for 90 min. Cells were collected for profiling 23 genes with the cDNA plate array assay.

 

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