Cignal webina
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The document describes Cignal Reporter Assays from SABiosciences that enable simple and robust analysis of signal transduction pathways. The assays utilize dual-luciferase reporters containing optimized transcriptional regulatory elements and luciferase variants to provide high sensitivity and low variability. The assays allow monitoring of 29 pathways and are available in different formats for various cell types and applications like RNAi and small molecule screening.
Cignal webina
- 1. Cignal™ Reporter Assays Simple and Robust Signal Transduction Assays Brian McNally, Ph.D. Associate Product Manager 1
- 2. Topics to be Covered • Who is SABiosciences? • Utility of the Cignal Reporter Assays • Challenges Associated with Cell-Based Assays • Solutions Cignal Reporter Assays Provide • How Cignal Reporter Assays Work • Cignal Pathway Reporters Product Family • Dual-Luciferase Assays • Luciferase Engineered for High Performance • Optimized Transcriptional Regulatory Elements (TREs) • How YOU Can Use Cignal Reporter Assays • Performance and applications data. 2
- 3. Who IS SABiosciences? • Located in Frederick, Maryland, USA (near to NIH Bethesda campus) • Founded 10 years ago by scientists working at the NIH • Core Values: Innovation, Focus, Systematic Design • Goal: Transform cutting-edge biological information and technologies into easy to use, accessible, and innovative systems biology research tools. • Products: Gene expression analysis, protein function analysis and cell based assays 3
- 4. Systems Biology @ SABiosciences Research DNA Genomics & Regulation Technologies Sequencing SNP Detection ChIP Methylation RNA Discovery Gene Expression Screening SABiosciences Products ChIP-qPCR Assays Methyl Profiler Confirmation Protein Gene Function Protein Function 4 Gene Expression Service Core RT2 PCR Arrays RT2 miRNA Arrays and Assays RT2 qPCR Assays Detection Knockdown Reporter System Phenotypes ELISArray Kits siRNA Arrays / shRNA Plasmids Cignal Reporter System CASE Kits
- 5. Topics to be Covered • Who is SABiosciences? • Utility of the Cignal Reporter Assays • Challenges Associated with Cell-Based Assays • Solutions Cignal Reporter Assays Provide • How Cignal Reporter Assays Work • Cignal Pathway Reporters Product Family • Dual-Luciferase Assays • Luciferase Engineered for High Performance • Optimized Transcriptional Regulatory Elements (TREs) • How YOU Can Use Cignal Reporter Assays • Performance and applications data. 5
- 6. Cignal Applications • Monitoring signaling pathway activation Is my pathway of interest regulated by biological molecule “X”? • Studying the biological response of a drug candidate or chemical compound Does my compound of interest regulate pathway “X”? • Phenotypic analysis of gene knockdown or gene over-expression Does my gene of interest regulate pathway “X”? • Mode of action of protein, peptide and ligands Does my protein/peptide/ligand of interest regulate pathway “X”? 6
- 7. Cell-based Assay Research Challenges • Variability within experiments Well-to-well and plate-to-plate reproducibility are notoriously challenging with cell-based assays. • Variability between experiments Reliable results often depend upon the “status” of the cells, and who in the lab is conducting the experiments. • Assay Performance Sensitivity, specificity, signal to noise ratio, and simplicity are of utmost importance. 7
- 8. What Cignal Reporter Assays Provide • Functionally validated dual-reporter formulation Minimizes variability, increasing the biological relevance of each experiment • Ready-to-use reporters and controls, coupled with a transient reporter system Enables simple and rapid analysis of the regulation of 29 signal transduction pathways • Combination of custom-engineered transcriptional regulatory elements (TREs) and destabilized, codonoptimized firefly luciferase Increases the signal to noise ratio and maximizes assay sensitivity and specificity 8
- 9. Topics to be Covered • • Who is SABiosciences? Utility of the Cignal Reporter Assays • Challenges Associated with Cell-Based Assays • Solutions Cignal Reporter Assays Provide • How Cignal Reporter Assays Work • Cignal Pathway Reporters Product Family • Dual-Luciferase Assays • Luciferase Engineered for High Performance • Optimized Transcriptional Regulatory Elements (TREs) • 9 How YOU Can Use Cignal Reporter Assays • Performance and applications data.
- 10. Cignal Pathway Reporter System Products Easy to transfect cell lines Endpoint Assays Cignal Dual-Luciferase Reporter Assays Single Pathway Assays 10 10-Pathway Arrays Dynamic Live Cell Assays Cignal GFP Reporter Assays Single Pathway Assays Primary cells, stem cells, and difficult to transfect cell lines Endpoint Assays Cignal Lenti Luciferase Reporters Single Pathway Assays 10-Pathway Arrays Dynamic Live Cell Assays Cignal Lenti GFP Reporters Single Pathway Assays
- 11. Cignal Reporter Assays Pathway Amino Acid Deprivation Androgen Antioxidant Response ATF6 C/EBP cAMP/PKA Cell Cycle DNA Damage EGR1 ER Stress Estrogen GATA Glucocorticoid Heat Shock Response Heavy Metal Stress Hedgehog Hypoxia Type I Interferon Interferon Gamma 11 Transcription Factor ATF4/ATF3/ATF2 Androgen Receptor Nrf2 & Nrf1 ATF6 C/EBP CREB E2F/DP1 p53 EGR1 CBF/NF-Y/YY1 ER GATA GR HSF MTF1 GLI HIF-1 STAT1/STAT2 STAT1/STAT1 Pathway MAPK/ERK MAPK/JNK MEF2 c-myc NFκB Notch Oct4 PI3K/AKT PKC/Ca++ PPAR Retinoic Acid SP1 STAT3 TGFβ VDRE Wnt Transcription Factor Elk-1/SRF AP-1 MEF2 Myc/Max NFκB RBP-Jk Oct4 FOXO NFAT PPAR RAR SP1 STAT3 SMAD2/3/4 Vitamin D Receptor TCF/LEF
- 12. REPORTER DESIGN: Dual-Luciferase Assays The Transcriptional Regulatory Elements (TREs) are what establish the pathway specificity of each reporter! Pathway-targeted transcriptional regulatory elements (35) Reporter Construct TRE TATA box Firefly luciferase Normalization Construct CMV TATA box Renilla luciferase Constitutive transcriptional regulatory element (1) 12
- 13. Using Cignal Reporters: What You Need • Cignal Reporter Assay • Reliable transfection reagent and protocol (SureFECT) • Test Biological • siRNA (SureSilencing siRNA Arrays) • shRNA (SureSilencing shRNA) • expression vectors • protein/peptide • small molecule • Detection Instrument and Luciferase Substrates 13
- 14. REPORTER DESIGN: Dual-Luciferase Assays The Transcriptional Regulatory Elements (TREs) are what establish the pathway specificity of each reporter! Pathway-targeted transcriptional regulatory elements (35) Reporter Construct TRE TATA box Firefly luciferase Normalization Construct CMV TATA box Renilla luciferase Constitutive transcriptional regulatory element (1) 14
- 15. Dual Luciferase Assays: Why Is It Important? Sources of Variability in Cell-based Assays: • Number of cells seeded per well • Transfection efficiencies within and across plates • Multichannel pipettor inconsistencies • “Edge effects” influencing cell culture • Viability of cells following transfection/treatment • Lysis efficiencies within and across plates • Variability inherent to reporter assay • Changes due to the designed treatments of cells • RNA interference • Overexpression • Recombinant protein/peptide/growth factor • Small molecule 15 Dual-Luciferase Assay design corrects for these unwanted sources of variability.
- 16. Dual Luciferase Format Minimizes Variability Dual-Luciferase Assays: NFkB Reporter Assay Single-Luciferase Assays: NFkB Reporter Assay 30000000 2.5 1.5 1 CV=0.09 0.5 20000000 15000000 CV=0.69 10000000 5000000 0 0 NFkB Reporter + NFkB siRNA 16 CV=0.70 25000000 2 Luminescence (Relative Light Units) Relative Luciferase Units CV=0.07 NFkB Reporter + Neg. control siRNA NFkB Reporter + NFkB siRNA NFkB Reporter + Neg. control siRNA
- 17. REPORTER DESIGN: Dual-Luciferase Assays The Transcriptional Regulatory Elements (TREs) are what establish the pathway specificity of each reporter! Mammalian codon-optimized AND Destabilized firefly luciferase Reporter Construct TRE TATA box Firefly luciferase Normalization Construct CMV TATA box Renilla luciferase 17
- 18. Engineered Luciferase and the Signal:Noise Ratio Modified Luciferase: NFkB Reporter Signal Following TNF Induction Modified Luciferase: Background NFkB Reporter Signal (no treatment post-transfection) 250 Fold Induction 200 150 WHY? 100 50 Relative Luciferase Units 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 0 Negative Control 18 NFkB Reporter: NFkB Reporter: Stable Luc Destabilized Luc Negative Control NFkB Reporter: NFkB Reporter: Stable Luc Destabilized Luc
- 19. REPORTER DESIGN: Dual-Luciferase Assays The Transcriptional Regulatory Elements (TREs) are what establish the pathway specificity of each reporter! Pathway-targeted transcriptional regulatory elements (35) Reporter Construct TRE TATA box Firefly luciferase Normalization Construct CMV TATA box Renilla luciferase 19
- 20. Cignal TRE Maximize Luciferase Signal Dual-Luciferase Assays Utilizing Cignal p53 TRE Dual-Luciferase Assays Utilizing Common p53 TRE 3.5 140 3 120 100 80 60 125-Fold 40 20 2.5 2 1.5 2.5-Fold 1 0.5 0 0 p53 Reporter + DMSO 20 Relative Luciferase Units Relative Luciferase Units 160 p53 Reporter + 1µM Doxorubicin p53 Reporter + DMSO p53 Reporter + 1µM Doxorubicin
- 21. Cignal Reporter Assays: How It Works 21
- 22. Cignal Reporter Assays (GFP) Pathway Amino Acid Deprivation Androgen Antioxidant Response ATF6 C/EBP cAMP/PKA Cell Cycle DNA Damage EGR1 ER Stress Estrogen GATA Glucocorticoid Heat Shock Response Heavy Metal Stress Hedgehog Hypoxia Type I Interferon Interferon Gamma 22 Transcription Factor ATF4/ATF3/ATF2 Androgen Receptor Nrf2 & Nrf1 ATF6 C/EBP CREB E2F/DP1 p53 EGR1 CBF/NF-Y/YY1 ER GATA GR HSF MTF1 GLI HIF-1 STAT1/STAT2 STAT1/STAT1 Pathway MAPK/ERK MAPK/JNK MEF2 c-myc NFκB Notch Oct4 PI3K/AKT PKC/Ca++ PPAR Retinoic Acid SP1 STAT3 TGFβ VDRE Wnt Transcription Factor Elk-1/SRF AP-1 MEF2 Myc/Max NFκB RBP-Jk Oct4 FOXO NFAT PPAR RAR SP1 STAT3 SMAD2/3/4 Vitamin D Receptor TCF/LEF
- 23. Cignal Reporter Assays: Two Modalities Dual-luciferase Format - Quantitative endpoint luminescence assay - Exceptional reproducibility, sensitivity, and signal-to-noise ratio - Average expression from a population of cells GFP Format - Dynamic live cell assay - Single cell resolution - Readout flexibility (flow cytometry, fluorescent microscopy, fluorometry) 23
- 24. Cignal Finder Arrays: Cancer Array Design Pathway Cell Cycle DNA Damage Hypoxia MAPK/ERK MAPK/JNK c-Myc NFkB Notch TGFβ Wnt 24 Transcription Factor E2F/DP1 p53 HIF Elk-1/SRF AP1 Myc/Max NFkB RBP-Jk SMAD2/SMAD3/SMAD4 TCF/LEF
- 25. How Does a Cignal Finder Array Work? 25
- 26. Topics to be Covered • Who is SABiosciences? • Utility of the Cignal Reporter Assays • Challenges Associated with Cell-Based Assays • Solutions Cignal Reporter Assays Provide • How Cignal Reporter Assays Work • Cignal Pathway Reporters Product Family • Dual-Luciferase Assays • Luciferase Engineered for High Performance • Optimized Transcriptional Regulatory Elements (TREs) • How YOU Can Use Cignal Reporter Assays • Performance and applications data 26
- 27. Cignal Applications • Functional Genomics – What’s the phenotype of my gene? Does my gene of interest regulate signaling pathway “X”? • Functional Proteomics – What’s the phenotype of my protein/peptide? Does my protein, peptide, or growth factor of interest regulate signaling pathway “X”? • Drug Screening – What is the mechanism of action of my small molecule drug candidates? Do my drug candidates of interest regulate signaling pathway “X”? 27
- 28. Cignal Application: RNA Interference Relative Luciferase Units 20 20 16 16 12 12 88 4 4 0 Cignal Reporter: siRNA: 28 NC NC p53 p53 NC siRNA p53 siRNA NC siRNA p53 siRNA
- 29. Cignal Applications • Functional Genomics – What’s the phenotype of my gene? Does my gene of interest regulate signaling pathway “X”? • Functional Proteomics – What’s the phenotype of my protein/peptide? Does my protein, peptide, or growth factor of interest regulate signaling pathway “X”? • Drug Screening – What is the mechanism of action of my small molecule drug candidates? Do my drug candidates of interest regulate signaling pathway “X”? 29
- 30. Cignal Application: Functional Proteomics 35 Relative Luciferase Units 30 25 20 15 10 5 Cignal Reporter: Protein: 30 NC NC SMAD SMAD SMAD None 25 ng/µl huTGFβ1 None 2.5 ng/ml huTGFβ1 25 ng/ml huTGFβ1
- 31. Cignal Applications • Functional Genomics – What’s the phenotype of my gene? Does my gene of interest regulate signaling pathway “X”? • Functional Proteomics – What’s the phenotype of my protein/peptide? Does my protein, peptide, or growth factor of interest regulate signaling pathway “X”? • Drug Screening – What is the mechanism of action of my small molecule drug candidates? Do my drug candidates of interest regulate signaling pathway “X”? 31
- 32. Cignal Application: Small Molecule Studies Relative Luciferase Units 250 200 150 100 50 Cignal Reporter: CRE CRE CRE CRE Small Molecule: 32 CRE None 0.1µM Forskolin 1µM Forskolin 5µM Forskolin 10µM Forskolin
- 33. Cignal Application(GFP): Small Molecule Studies Fluorometry Fluorescent Microscopy Treatment of Cignal SRE (GFP) transfectants with 10% serum and 10 ng/ml PMA activates the MAPK/ERK signaling pathway. 33
- 34. Application Study p53 Pathway Interaction Study Question: What is impact of p53 gene expression knock down on the p53 signaling pathway AND other cancer-relevant signaling pathways? Approach: Carry out a p53 RNA interference experiment with multiple cancer-relevant Cignal Reporter Assays. 34
- 35. Post-Genomics Research Challenge Signal Transduction Cascade A B C D (~40 proteins) p53 Signaling 35
- 36. Cignal Reporters: Constructing Signaling Networks 36
- 37. Post-Genomics Research Challenge: Pathway Interactions? Wnt Signaling NFkB Signaling p53 Signaling ? ? E2F Signaling ? ? Hypoxia Signaling MAPK/JNK Signaling ? ? ? TGFβ Signaling MAPK/ERK Signaling ? Myc Signaling 37 ? Notch Signaling
- 38. Cignal Finder Cancer Array : p53 RNAi Study 1. p53 Cignal Reporter 2. RBP-Jk Cignal Reporter 3. TCF/LEF Cignal Reporter 4. E2F Cignal Reporter 5. AP1 Cignal Reporter 6. SRE Cignal Reporter 7. SMAD Cignal Reporter 8. NFkB Cignal Reporter 9. Myc Cignal Reporter 10. HIF Cignal Reporter 11. Cignal Negative Control 12. Cignal Positive Control 38 1 2 3 4 5 6 7 8 9 10 11 12 p53 siRNA Neg. control siRNA
- 39. Results: Cancer Array Application Study Cignal Pathway Reporter 39 1 AP E SR IF H M yc Fk B N 2F pR BE AD SM p5 3 BP R TC Jk 4.5 4 3.5 3 2.5 2 1.5 1 0.5 0 F/ LE F Fold Change in Pathway Activation Impact of p53 siRNA Treatment
- 40. Post-Genomics Research Challenge: Pathway Interactions? p53 Signaling Hypoxia Signaling MAPK/ERK Signaling Notch Signaling 40
- 41. Topics to be Covered • Who is SABiosciences? • Utility of the Cignal Reporter Assays • Challenges Associated with Cell-Based Assays • Solutions Cignal Reporter Assays Provide • How Cignal Reporter Assays Work • Cignal Pathway Reporters Product Family • Dual-Luciferase Assays • Luciferase Engineered for High Performance • Optimized Transcriptional Regulatory Elements (TREs) • How YOU Can Use Cignal Reporter Assays • Performance and applications data 41
- 42. Summary: Cignal Reporter Assay System • Breadth of Pathways and Research Applications •35 Pathway-Focused Reporter Assays •4 Application-Specific Cignal Finder 10-Pathway Arrays • Performance Exceptional Sensitivity, Specificity, Signal-to-Noise Ratio, and Reproducibility • Convenience Ready-to-use, validated, preformatted transient assays • Dual Modalities •Dual-luciferase quantitative endpoint assays •GFP dynamic live cell assays with single cell resolution 42
- 43. Cignal Reporter Assays Simple and Robust Signal Transduction Assays Questions? Contact Technical Support 9 AM – 6 PM Eastern M – F Telephone: 888-503-3187; Email: support@SABiosciences.com 43