Deciphering the Monocyte- Macrophage Lineage Differentiation With IPA Heikki Vuorikoski University of Turku Institute of Biomedicine Department of Anatomy

IPA and How We Use It Analysis of Big Datasets DNA microarray data, solving the function of ”unknown” genes Literature Mining Gene and protein information Data Comparison DNA microarray data from our experiments vs.public expression data from databases, articles... Data source E.g. ”osteoclast” related information Pathway Graphics Co-operation projects Information sharing

Monocyte-macrophage System (MMS) Plasticity CD14 + monocytes isolated from human peripheral blood can differentiate into bone resorbing osteoclasts (OCs), endothelial cells (ECs), dendritic cells (DCs) and macrophages (M  s) Common key factors for different cell lineage differentiation includes M-CSF, c-fos, GM-CSF, and IL-4 Capability of transdifferentiation: immature DCs can transdifferentiate into OCs DCs and M  s into each other immature DCs into EC-like cells

Systems Biology Approach to Cell Lineage Differentiation Methods: Microarray gene expression profiling Human OCs grown on plastic and bone In silico promoter region analysis of OC specific genes In silico transcription factor model prediction Microarray data mining analyses GO, Pathway analysis

OC Differentiation Assay

Time series analysis with Affymetrix HG-U133A

Functional Analysis of the Genes The Functional Analysis of a network identified the biological functions and/or diseases that were most significant to the genes in the network. Genes in bold are up-regulated and in italic down-regulated.

How to Use: Literature Mining

How to use: Data Comparison Data from external sources, e.g. articles Import to IPA Comparison analysis with your own data

How to Use: Data Source Genes categorised as “osteoclast related” in IPA are inspected in our microarray data Search and visualize in IPA Color with your (or others) expression data

How to Use: Pathway Graphics

How to Use: Co-operation, data sharing

Conclusions Big datasets are easily handled with the software Integration to other analysis programs is easy Doesn’t require advanced computing skills (“biologistettavissa”) Data analysis and data sharing between co- workers is easy IPA is not an excuse to stop wet-lab work, but it is valuable tool for interpreting the data coming from the lab.

Thank You Department of Anatomy, University of Turku Anne Seppänen Husheem Michael Teuvo Hentunen Tiina Laitala-Leinonen Kalervo Väänänen Department of Medical Microbiology, University of Turku Milja Möttönen Olli Lassila Department of Information Technology, University of Turku Eija Nordlund Jorma Boberg Tapio Salakoski Department of Physiology, University of Turku Markku Ahotupa National Public Health Institute, Department of Molecular Medicine, Helsinki Anna Kiialainen