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Lipases and Lipid Signaling
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Lipids (from the Greek word lípos “fat”) comprise a group of water-insoluble biomolecules. In the body, lipids fulfill a variety of tasks: they serve as energy storage, they are building blocks for cell membranes and messengers with a hormone-like effect. Such "bioactive" lipids have medically highly relevant properties since they affect e.g. inflammatory processes and cancer growth.
Bioactive lipids are produced and degraded by body’s own enzymes. By knowing these enzymes, one can interfere with the production of the messengers and prevent unwanted effects. A well-known example is acetylsalicylic acid (aspirin), which inhibits the enzyme responsible for the production of inflammatory lipids (prostaglandins). Many of the relevant enzymes that affect the formation or degradation of bioactive lipids are currently unknown or inadequately characterized. In this project, we focus on the precise characterization of three enzymes called monoglyceride lipase, alpha/beta-hydrolase 6, and lysosomal acid lipase. The aim of our project is to elucidate the function of these enzymes in the production and degradation of bioactive lipids. In particular, we try to understand the role of these enzymes in various inflammatory diseases such as atherosclerosis, colitis, and airway diseases. We are also investigating whether these enzymes are involved in the embryonic supply of vital omega-3 fatty acids in the human placenta. In addition, we want to identify so far unknown enzymes involved in the metabolism of bioactive lipids.
Principal Investigator
Univ.-Prof. Dr. Dagmar Kratky
Institute of Molecular Biology and Biochemistry
Medical University of Graz
Curriculum Vitae, Publications

Co-Principal Investigator
Assoc. Prof. Dr. Robert Zimmermann
Institute of Molecular Biosciences
University of Graz
Curriculum Vitae, Publications

Project Members
Assoc. Prof. Dr. Ruth Birner‐Gruenberger, Institute of Pathology, Medical University of Graz
Curriculum Vitae
Univ. Prof. Dr. Akos Heinemann, Institute of Experimental and Clinical Pharmacology,
Medical University of Graz
Curriculum Vitae
Assoc. Prof. Dr. Achim Lass, Institute of Molecular Biosciences, University of Graz
Curriculum Vitae
Assoc. Prof. Dr. Gunther Marsche, Institute of Experimental and Clinical Pharmacology,
Medical University of Graz
Curriculum Vitae
Branislav Radović, Institute of Molecular Biology and Biochemistry, Medical University of Graz
Curriculum Vitae
Assoc. Prof. Dr. Rudolf Schicho, Institute of Experimental and Clinical Pharmacology,
Medical University of Graz
Curriculum Vitae
Assoc. Prof. Dr. Christian Wadsack, Department of Obstetrics and Gynecology, Medical University of Graz
Curriculum Vitae
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