Cancer miRNA DNA Methylation PCR Array

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NOTE: To access content of the original EpiTect Methyl qPCR Arrays (Before May 25, 2012), please click here.
Please NOTE: The new EpiTect Methyl II PCR Array System was introduced effective May 25, 2012. It has replaced the EpiTect Methyl qPCR Array System, with the older system set for discontinuation December 1, 2012.

Human Signature Panel

Human Cancer miRNA DNA Methylation PCR Array: EAHS-591Z
The Human Cancer miRNA EpiTect Methyl II Signature PCR Array profiles the promoter methylation status of a panel of 22 genes encoding mature miRNA sequences that target genes in oncogenic or tumor suppressor biological pathways. The array queries the CpG islands closest to the predicted transcription start sites of the corresponding pri-miRNA or primary miRNA transcripts. Because several pri-miRNA encode a cluster of mature miRNA sequences, this array actually profiles the epigenetic status of 35 mature miRNA sequences. Profiling cellular or fresh tissue genomic DNA research samples with this array may help correlate CpG island methylation status with biological phenotypes and provide further insights into the molecular mechanisms behind miRNA-based regulation of cell growth pathways. With a simple restriction enzyme digestion and real-time PCR, research studies can analyze the promoter methylation status of 22 different cancer-related miRNA genes with this DNA methylation PCR array. The EpiTect Methyl II PCR Arrays are intended for molecular biology applications. This product is not intended for the diagnosis, prevention, or treatment of a disease. The EpiTect Methyl II PCR Arrays use the MethylScreen™ Technology provided under license from Orion Genomics, LLC.	User Manual

Functional Gene Grouping

How It Works

Manual & Resources

Reagents & Software

96 Well Gene Table 384 Well Gene Table

Brain Cancer: let-7g, mir-10a, mir-124-2, mir-126, mir-149, mir-155, mir-15b Cluster (mir-15b, mir-16-2), mir-17 cluster (mir-17, mir-18a, mir-19a, mir-19b-1, mir-20a, mir-92a-1), miR-191 Cluster (miR-191, miR-425), mir-210, mir-218-1, mir-218-2, mir-23b Cluster (mir-23b, mir-24-1, mir-27b), mir-301a, mir-30c-1 Cluster (mir-30c-1, mir-30e), mir-32, mir-378, mir-7-1.

Breast Cancer: mir-155, mir-17 cluster (mir-17, mir-18a, mir-19a, mir-19b-1, mir-20a, mir-92a-1).

Colon Cancer: mir-17 cluster (mir-17, mir-18a, mir-19a, mir-19b-1, mir-20a, mir-92a-1), mir-378.

Head & Neck Cancer: let-7i, mir-10a, mir-155, mir-15b Cluster (mir-15b, mir-16-2), mir-17 cluster (mir-17, mir-18a, mir-19a, mir-19b-1, mir-20a, mir-92a-1), mir-210, mir-218-1, mir-218-2, mir-23b Cluster (mir-23b, mir-24-1, mir-27b), mir-30c-1 Cluster (mir-30c-1, mir-30e), mir-378.

Kidney Cancer: mir-210.

Liver Cancer: mir-126, mir-17 cluster (mir-17, mir-18a, mir-19a, mir-19b-1, mir-20a, mir-92a-1), miR-191 Cluster (miR-191, miR-425), mir-193b, mir-23b Cluster (mir-23b, mir-24-1, mir-27b), mir-30c-1 Cluster (mir-30c-1, mir-30e).

Lung Cancer: let-7i, mir-1-1, mir-126.

Lymphoma: mir-155, mir-23b Cluster (mir-23b, mir-24-1, mir-27b), mir-378.

Ovarian Cancer: let-7i, mir-126, mir-155, mir-34c Cluster (mir-34c, mir-34b).

Pancreatic Cancer: mir-10a, mir-155, mir-210, mir-23b Cluster (mir-23b, mir-24-1, mir-27b).

Prostate Cancer: mir-149, mir-15b Cluster (mir-15b, mir-16-2).

Skin Cancer: mir-149, mir-15b Cluster (mir-15b, mir-16-2), mir-17 cluster (mir-17, mir-18a, mir-19a, mir-19b-1, mir-20a, mir-92a-1), mir-193b, mir-23b Cluster (mir-23b, mir-24-1, mir-27b).

96 Well Gene Table 384 Well Gene Table

Functional Gene Grouping

How It Works

Manual & Resources

Reagents & Software

"If you have access to a real-time PCR instrument, you can analyze the methylation status of multiple genes at the same time using the EpiTect Methyl II PCR technology."

The EpiTect Methyl II PCR Array System is a fast, reliable technology that profiles the DNA methylation status of a panel of genes. These PCR Arrays can help you discover and verify cancer or developmental biomarkers useful for both basic and applied research. No bisulfite conversion is required, and the challenges of real-time PCR primers design and optimization has already been done for you. EpiTect Methyl II PCR Arrays are ideal for fast, high-throughput methylation analysis. For determining the exact methylation level of individual and consecutive CpG sites, we recommend using bisulfite Pyrosequencing on a PyroMark system.

You can use any 96-well or 384-well real-time PCR instrument.
Click below for detailed information.

How it Works Performance Data Application Data

How it Works

The EpiTect Methyl II PCR Array System relies on the differential cleavage of target sequences by two different restriction endonucleases whose activities require either the presence or absence of methylated cytosines in their respective recognition sequences. As real-time PCR quantifies the relative amount of DNA remaining after each enzyme digestion, the methylation status of individual genes and the methylation profile across a gene panel are reliably and easily calculated. The high yield of DNA from the restriction digests and PCR amplification allow the analysis of smaller, more heterogeneous samples.

Download User Manual Tour the FREE Data Analysis Template

What It Offers:

Guaranteed Performance - Ready-to-use for DNA methylation analysis
Time & Cost Savings - Less than 30 min hands-on time to analyze up to 94 genes
Easy Data Analysis - FREE Excel-based data analysis template available

You can easily perform an EpiTect Methyl II experiment in your own laboratory using any 96-well or 384-well real-time PCR instrument that you have access to.
Or you can send your DNA samples to us and take advantage of our PCR Array Services.

Array Layout:
The PCR Arrays are available in both 96- and 384-well plate formats to analyze the methylation status of 22 or 94 genes related to a disease state, such as specific types of cancer, or development pathways related to specific cells or tissues. The Signature panels of 22 genes are arranged on either 96-well or 384-well plates to simultaneously characterize all four restriction digests from either one or four different DNA samples, respectively. The more Complete panels of 94 genes are arranged on 96- or 384-well plates to characterize all four restriction digests from one DNA sample either on four plates or all on the same plate, respectively.

For more detail on PCR Array layout, see the "Gene Table" link for the individual array products.

Data Interpretation
EpiTect Methyl II PCR Arrays provide gene methylation status as percentage unmethylated (UM) and percentage methylated (M) fraction of input DNA. "UM" represents the fraction of input genomic DNA containing no methylated CpG sites in the amplified region of a gene. "M" represents the fraction of input genomic DNA containing two or more methylated CpG sites in the targeted region of a gene. The number of CpG sites methylated in a targeted region can vary within the fraction of methylated input DNA.

In the figure above, each horizontal bar represents the targeted region of a gene from one genome. Biological samples usually contain many genomes derived from many cell types. For simplicity, five such genomes are depicted here. Light and dark circles represent unmethylated and methylated CpG sites, respectively.

Performance Data

To verify the reliability of the EpiTect Methyl II PCR Array System, its results and sensitivity were compared with bisulfite Sanger sequencing, the gold standard in DNA methylation analysis

Same Results as Bisulfite Sanger Sequencing

To validate the reliability of the system, EpiTect Methyl II PCR system results (EpiTect Methyl II PCR) were compared with bisulfite Sanger sequencing, the gold standard in DNA methylation analysis. The methylation status of the cadherin 13 (CDH13) gene promoter was analyzed using either bisulfite sequencing or EpiTect Methyl II PCR Assays in two different cell lines. EpiTect Methyl II PCR Assays revealed that 100% of total input DNA had methylated CDH13 gene promoter in MB231 cell lines whereas 100% of input DNA from HeLa cell line had unmethylated CDH13 promoter. Importantly, EpiTect Methyl II PCR Assays yielded results similar to Bisulfite Sequencing.

Same Sensitivity as Bisulfite Sanger Sequencing

Primary tumors are typically very heterogeneous, containing a mixture of both cancerous and noncancerous cells. Therefore, reliable tumor characterization requires detecting smaller amounts of methylated DNA diluted in an unmethylated background. To test the sensitivity of EpiTect Methyl II PCR system to detect methylated DNA diluted in an unmethylated background, SKBR3 breast cancer cell line and normal blood genomic DNA (encoding methylated and unmethylated HIC1, respectively) were mixed in different ratios. EpiTect Methyl II Human HIC1 PCR Primers Assays were used to detect the methylation status of the mixed sample. Result show that the percentage of methylated HIC1 relative to total promoter DNA in each mixture was detectable even down to six percent of the total DNA sample showing the high sensitivity of EpiTect Methyl II PCR system.

Application Data

Gene promoter methylation is the most common epigenetic mechanism silencing tumor suppressor genes during oncogenesis. Almost all cancer-related signaling pathways are affected by methylation, and the number of genes affected in each major type of cancer is still rapidly growing. However, even the most relevant genes have not yet been correlated to individual cancer types or subtypes in order to better define biological pathways and mechanisms leading to oncogenesis and in order to properly develop DNA methylation biomarkers. The EpiTect Methyl II PCR System provides an ideal reagent for such studies, without bisulfite conversion of DNA. The following experiments demonstrate that EpiTect Methyl II PCR Arrays can both verify known and discover new DNA methylation cancer biomarkers

EpiTect Methyl II PCR Arrays are used to screen Breast Cancer Gene Methylation Status in Breast Cancer Cell Lines.The heat map compares the methylation status of 22 genes in the genomic DNA of three breast cancer cell lines and blood genomic DNA (used as an unmethylated control) determined with the Human Breast Cancer EpiTect Methyl II Signature PCR Arrays. The results further strengthen the correlation of these biomarkers with breast cancer.

Biomarker / Pathway Discovery
Cancer progresses through aberrant cell differentiation due to alterations in gene expression. Transcription factors regulate gene expression, and many tumor suppressor genes and oncogenes, defined by classical genetic methods, encode transcription factors. Does the methylation status of transcription factor genes differ between cancer and normal cells?

EpiTect Methyl II DNA Methylation PCR Arrays Discover New Candidate Breast Cancer DNA Methylation Biomarkers. The heat map compares the methylation status of a panel of 79 transcription factor genes in six different breast cancer cell lines (some in duplicate) and a normal epithelial cell line as determined using 384-well EpiTect Methyl II Custom PCR Arrays. These breast cancer cell lines also methylate this gene panel potentially providing a new source of cancer biomarkers.

These results are consistent with the notions that aberrant expression of transcription factors controlling cell differentiation plays key roles in oncogenesis and that transcription factors can be tumor suppressors.

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Functional Gene Grouping

How It Works

Manual & Resources

Reagents & Software

The complete EpiTect Methyl II PCR Array System insures that you will get good results from your DNA methylation analysis experiment the first time, and every time guaranteed.

The Complete EpiTect Methyl II PCR Array System Includes:

EpiTect Methyl II PCR Arrays
Analyze the DNA Methylation Status of 22 or 94 Genes Simultaneously

EpiTect Methyl II DNA Restriction Kit
Required for a complete and successful experiment
Includes enzymes and a digestion buffer optimized for complete digestion by both enzymes under the same conditions

RT² SYBR® Green qPCR Master Mixes
Instrument-specific PCR master mixes insure high-efficiency, sequence-specific amplification

Data Analysis Software (Excel template)

Our convenient and high-quality real-time RT-PCR accessory products complete the EpiTect Methyl II PCR Array System. The other components needed for real-time PCR analyzing profiles of methylation status are a SYBR^® Green qPCR master mix matched to the instrument in your laboratory, and the EpiTect Methyl II DNA Restriction Kit.

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