Network Pharmacology: Harnessing STRING, STITCH, and Clustering for Cellular Biology
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Our Goal:
- Make complex biological data more accessible to cellular biologists.
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Initial Challenge:
- Finding tools to simplify handling of complex datasets.
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Key Point:
- Ensuring biologists can easily access and work with data to derive actionable insights.
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Importance of Tools like STRING and STITCH:
- These tools help visualize complex molecular interactions.
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Inna's Role:
- She will explain clustering techniques later in the talk, and how it can be used to provide deeper insight.
Powerful Tools for Network Pharmacology: STRING & STITCH
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STRING:
- Visualizes protein-protein interactions.
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STITCH:
- Maps compound-target networks.
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Visualization of Complex Interactions:
- Both tools help biologists visualize complex molecular interactions.
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Exploring Enriched Pathways and Compound-Target Relationships:
- Useful for exploring enriched pathways and compound-target relationships.
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Key Point:
- These tools make biological data more intuitive for biologists.
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Insights into Disease Mechanisms and Therapeutic Targets:
- Provide insights into disease mechanisms and therapeutic targets.
Case Study: Exploring Non-Small Cell Lung Cancer (NSCLC) Pathways
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Real-World Application:
- Walk through an example of applying STRING/STITCH to NSCLC.
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Focus on Key Genes:
- Genes like KRAS, EGFR, and TP53.
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Exploring Activation and Inactivation Behavior:
- Demonstrate how to explore gene activation/inactivation.
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Mapping Genes to Known Pathways:
- Show how to map genes to known pathways.
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Enrichment Uncovers Central Pathways:
- Discuss how enrichment reveals pathways central to NSCLC progression.
Addressing Granularity: Genes vs. Isoforms
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Challenge with Isoforms:
- BioGrid often focuses on isoforms rather than base genes.
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Solution with Clustering Algorithms:
- Use clustering algorithms like K-means and MCL.
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How Clustering Helps:
- Groups isoforms with their base genes.
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Key Point:
- Advanced analytical methods simplify data while retaining biological relevance.
Clustering to Make Sense of Complex Data
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Importance of Clustering:
- Extracts patterns from large datasets.
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K-means and MCL Algorithms:
- K-means Clustering: Partitions data into k clusters.
- Markov Cluster Algorithm (MCL): Detects clusters in network data.
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Understanding Isoform and Gene Relationships:
- Clustering helps understand these relationships.
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Benefits with Enriched Data:
- Pairing clustering with enriched data enhances insights.
Clustering in Action: K-means and MCL for Biological Data
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Detailed Explanation of Clustering Algorithms:
- In-depth look at K-means and MCL.
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Demonstration with Research Examples:
- Examples from NSCLC research.
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Influence of Enriched Data on Clustering Results:
- How enriched data affects clustering outcomes.
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Uncovering Hidden Patterns:
- Clustering reveals hidden patterns in biological datasets.
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STRING and STITCH Enhance Accessibility:
- Simplify complex data for biologists.
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Real-World Application in NSCLC Research:
- Provides valuable insights into disease pathways.
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Addressing Granularity with Clustering:
- Simplifies data without losing critical information.
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Value of Clustering in Data Interpretation:
- Essential for discovering hidden patterns and relationships.
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Continued Integration of Tools:
- Further combine STRING, STITCH, and clustering algorithms.
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Potential for New Discoveries:
- Aim for breakthroughs in NSCLC and other diseases.
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Appreciation:
- Thank the audience for their attention.
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Q & A:
Note: You can enhance this presentation by adding relevant images, charts, or graphs where appropriate. If you're using software like PowerPoint or Google Slides, consider incorporating:
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Visual Aids:
- Diagrams of protein-protein interactions from STRING.
- Network maps from STITCH showing compound-target relationships.
- Flowcharts illustrating the clustering process.
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Case Study Visuals:
- Pathway diagrams for NSCLC.
- Graphs showing gene activation/inactivation.
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Clustering Examples:
- Visual representations of clusters formed by K-means and MCL.
Tips for Creating the Presentation:
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Consistency:
- Use a consistent theme and color scheme throughout the slides.
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Clarity:
- Keep text concise and use bullet points for easy reading.
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Engagement:
- Include questions or prompts to engage the audience.
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References:
- Cite any sources or tools used, such as STRING and STITCH websites.