Igor Prudovsky , Ph.D.

Center for Molecular Medicine
Maine Medical Center Research Institute
Scarborough, ME 04074
(207) 885-8146 (phone)
(207) 885-8179 (fax)
prudoi@mmc.org

Biosketch

Igor Prudovsky received his Master’s degree from the Biology Department of Moscow University.  He received his Ph.D. and then Doctor of Sciences degrees and became Professor of Molecular Biology at the Engelhardt Institute of Molecular Biology of the Russian Academy of Sciences in Moscow. Since 1998, he has been a Scientist at the Maine Medical Center Research Institute. In 2004, Dr. Prudovsky became a Principal Investigator at this Institute. Since 1999 Dr. Prudovsky is also heading the Southern Maine Regional Confocal Facility.

Dr. Prudovsky is an associate of the Graduate Faculty in the University of Maine Graduate School of Biomedical Sciences in the Institute for Molecular Biophysics and the Functional Genomics Program.

Research Interests

While most extracellular proteins has in their structure a special signal peptide, required for their export through endoplasmic reticulum and Golgi, a large group of secreted proteins are devoid of signal peptides, and they are exported through insufficiently studied nonclassical mechanisms.

Our laboratory studies the stress-induced nonclassical export, of FGF1 and IL1a, two ubiquitous pro-inflammatory and pro-angiogenic molecules. The goals of this project is to understand how multiprotein release complexes are formed, how the released proteins are transported to the cell membrane and how they exit to the extracellular compartment without using the classical mechanism of exocytosis. The understanding of these processes will facilitate the development of new clinical approaches to the regulation of angiogenesis, inflammation and tumor growth.

Additionally, our laboratory studies the interaction between FGF/FGFR, Jagged(Delta)/Notch and thrombin/PAR1 signaling, three major regulatory systems involved in practically all of the aspects of organism development and organ formation. In particular, thrombin stimulation and  downregulation of Notch signaling induce FGF1 expression and release and the acquisition of the angiogenic phenotype by the cells. The aim is to understand molecular mechanisms underlying the cross-talk between FGF, Notch and thrombin signaling and to use this knowledge for the treatment of cardiovascular and oncological disorders.

Selected Publications

Wong M.K.K., Prudovsky, I., Vary, C., Booth, C., Liaw, L., Mousa, S., Small, D., and Maciag, T., A Non- Transmembrane Form of Jagged-1 Regulates the Formation of Matrix-Dependent Chord-like Structures. Biochem. Biophys. Res. Commun., 2000; 268:853-859.

Landricina, M., Prudovsky, I., Mouta Carreira, C., Tarantini, F., Maciag, T., Amlexanox Reversibly Inhibits Cell Migration and Proliferation and Induces the Src-Dependent Disassembly of Actin Stress Fibers In Vitro, J. Biol. Chem, 2000; 275:32753-32762.

Prudovsky, I., Landriscina, M., Soldi, R., Bellum, S., Small, D., Andreeva, V., Maciag, T., Fusions to members of fibroblast growth factor gene family to study nuclear translocation and nonclassic exocytosis. Methods in Enzymology 2000; 327:369-382

Tarantini, F., Micucci, I., Bellum, S., Landriscina, M., Garfinkel, S., Prudovsky, I., and T. Maciag. The Precursor But Not the Mature Form of IL1 Blocks the Release of FGF1 in Response to Heat Shock, J. Biol. Chem., Rapid Commun., 2001; 276:5147-5151.

Landriscina, M., Soldi, R., Bagalá, Micucci, I., Bellum, S., Tarantini, F., Prudovsky, I., and Maciag, T. S100A13 Participates in the Release of Fibroblast Growth Factor 1 in Response to Heat Shock in Vitro. J. Biol. Chem., 2001; 22544-22552.

Lindner, V., Booth, C., Prudovsky, I., Small, D., Maciag, T., Liaw, L., Members of the jagged/Notch Gene Families are expressed in Injured Arteries and Regulate Cell Phenotype via Alterations in Cellmatrix and Cell-cell Interactions. Am. J. Pathol., 2001; 159: 875-883.

Landriscina, M., Bagala, C., Mandinova, A., Soldi, R., Micucci, I., Bellum, S, Prudovsky, I., and Maciag, T. Copper Induces the Assembly of a Multiprotein Aggregate Implicated in the Release of FGF1 in Response to Stress. J. Biol. Chem., 2001; 276:25549-25557.

Small, D., Kovalenko, D., Kacer, D., Liaw, L., Landriscina, M., Di Serio, C., Prudovsky, I., Maciag, T., Soluble Jagged 1 Represses the Function of Its Transmembrane Form to Induce the Formation of the Src-dependent Chord-like Phenotype; J. Biol. Chem., 2001; 276:32022-32030.

Mouta-Carreira, C., Landriscina, M., Prudovsky I and Maciag, T. The Comparative Release of FGF1 by Hypoxia and Temperature Stress. Growth Factors, 2001; 18:277-285.

Mandinov, L., Mandinova, A., Kyurkchiev, S., Kyurkchiev, D., Kehayov, I., Kolev, V., Soldi, R., Bagalá, C., deMuinck, E.D., Lindner, V., Post, M.J., Simons, M., Bellum, S., Prudovsky, I. and Maciag, T. Copper Chelation Represses the Vascular Response to Injury. Proc. Natl. Acad. Sci., U.S.A. 2003; 100:6700-6705.

Small, D., Kovalenko, D., Soldi, R., Mandinova, A., Kolev, V., Trifonova, R., Bagalá, C., Kacer, D., Liaw, L., Prudovsky, I. and Maciag, T. Notch Activation Suppresses FGF-Dependent Cellular Transformation. J. Biol. Chem. 2003; 278:16405-16413.

Mandinova, A., Bellum, S., Bagalá, C., Soldi, R., Landriscina, M., Tarantini, F., Prudovsky, I. and Maciag, T., S100A13 mediates the Copper-Dependent Stress-Induced Release of IL1 from Both Human U937 and Murine NIH 3T3 Cells. J. Cell Sci. 2003; 116:2687-2696.

Mandinov, L., Mandinova, A., Soldi, R., Graziani, I., Bagalá, C., Prudovsky, I, and Maciag, T. Interleukin 1: The Choreographer for the Restenotic Ballet. Throm. & Haem., 2003; 90:369-371.

Prudovsky, I., Mandinova, A., Soldi, R., Bagalá, C., Graziani, I., Landriscina, M., Tarantini, F., Duarte, M., Bellum, S., Doherty, H. and Maciag, T. The Non-Classical Export Routes: IL1 and FGF1 Point the Way. J. Cell Sci. 2003; 118:4871-81.

Bagala, C., Kolev, V., Mandinova, A., Soldi, R., Mouta, C., Graziania, I., Prudovsky, I. and Maciag. T. The Alternative Translation of Synaptotagmin 1 Mediates the Non-Classical Release of FGF1. BBRC, 2003; 310(4):1041-7.

Doyle, A., Fick, J., Himmelhaus, M., Eck, W., Graziani, I., Prudovsky, I., Grunze, M., Maciag, T., Neivandt, D.  Protein Deformation of Lipid Hybrid Bilayer Membranes Studied by Sum Frequency Generation Vibrational Spectroscopy (SFS). Langmuir, 2004; 20:8961-8965.

Andreeva, V., Prudovsky, I., Maciag, T.  Stimulation of Quiescent Cells by Individual Polypeptide Growth Factors is Limited to One Cell Cycle.  Eur. J. Cell, Biol.,  2004; 83:327-35.

Trifonova, R., Small., D, Kacer., D, Kovalenko, D., Kolev, V., Mandinova, A., Soldi. R., Liaw, L., Prudovsky, I., Maciag, T.  The Non-Transmembrane Form of Delta1 but not of Jagged1 Induces Normal Migratory Behavior Accompanied by FGF Receptor 1-Dependent Transformation. J. Biol. Chem., Accel. Publ., 2004; 279:13285-88.

Peng. H., Sahni, A., Fay, P.J., Bellum, S., Prudovsky, I., Maciag, T.; Francis, CW. Identification of a Binding Site on Human FGF-2 for Fibrinogen. Blood, 2004; 103:2114-2120.

Omoto, A., Kawahito, Y., Prudovsky, I., Tubouchi, Y., Kimura, M., Ishino, H., Wada, M., Yoshida, M., Yoshimura, R., Yoshikawa, T., Sano, H.. Copper Chelation with Tetrathiomolybdate Suppresses Adjuvant-Induced Arthritis and Inflammation-Associated Cachexia in Rats.  Arthritis Research and Therapy, 2006; 7:R1174-1182.

Sivaraja, V., Kumar, TKS, Prudovsky, I., Yu, C. Three-Dimensional Solution Structure of Mouse S100A13, a Component of the Fibroblast Growth Factor 1 Non-Classical Release Pathway. Biochem. Biophys. Res. Commun., 2005; 335:1140-1148.

Kolev, V., Kacer, D., Trifonova, R., Small, D., Duarte, M., Soldi, R., Graziani, I., Sideleva, O., Larman, B., Maciag, T., Prudovsky, I..  The Intracellular Domain of Notch Ligand Delta1 Induces Cell Growth Arrest.  FEBS Letters, 2005; 579:5798-5802.

Rajalingam, D., Kumar, TKS, Soldi, R., Graziani, I., Prudovsky, I., Yu, C.. Molecular Mechanism of Inhibition of Non-Classical FGF-1 Export. Biochemistry, 2005; 44:15472-15479.

Sivaraja, V., Kumar, TKS., Rajalingam., Graziani, I., Prudovsky, I., Yu, C. Copper Binding Affinity of S100A13, a Key Component of the FGF-1 Non-Classical Copper-Dependent Release Complex. Biophys. J., 2006; 91:1-12.

Landriscina, M., Schinzari, G., Di Leonardo, G., Quirino, M., Cassano, A., D'Argento, E., Lauriola, L., Scerrati, M., Prudovsky, I., Barone, C. S100A13, a New Marker of Angiogenesis in Human Astrocytic Gliomas. J Neurooncol, 2006; 80: 251-259.

Graziani, I., Bagala, C., Duarte, M., Soldi, R., Kolev, V., Tarantini, F., Kumar, S., Doyle, A., Neivandt, D., Yu, C., Maciag, T., Prudovsky, IRelease of FGF1 and p40 Synaptotagmin 1 Correlates with Their Membrane Destabilizing Ability.  Biochem. Biophys. Res. Commun., 2006;  349:192-9.

Duarte, M., Kolev, V., Soldi, R., Kirov, A.,  Oliveira, SM, Graziani, I., Kacer, D., Friesel, R.., Maciag, T., Prudovsky, IThrombin Induces Rapid PAR1-Mediated Non-Classical FGF1 Release.  Biochem. Biophys. Res. Commun., 2006; 350:604-9.

Di Serio, C., Pellerito, S., Duarte, M., Massi, D., Naldini, A., Cirino, G., Prudovsky, I., Santucci, M., Geppetti, P., Marchionni, N., Masotti, G., Tarantini, F. Protease-Activated Receptor (PAR) 1 Selective Antagonist SCH7997 Inhibits Cell Proliferation and Induces Apoptosis, by a PAR-1 Independent Mechanism. Basic Clin. Pharmacol. Toxicol., 2007; 101:63-69.

Soldi, R., Mandinova, A., Venkataraman, K., Hla, T., Vadas, M., Pitson, S., Duarte, M., Graziani, I., Kolev, V., Kacer, D., Kirov, A., Maciag, T. Prudovsky, I. Sphingosine Kinase 1 is a Critical Component of the Copper-Dependent FGF1 Export Pathway.  Exper. Cell Res., 2007; 313: 3308-3318.

Rajalingam, D., Graziani, I., Prudovsky, I., Yu, C., Kumar, TKS. Relevance of Partially Structured States in the Non-Classical Secretion of Acidic Fibroblast Growth Factor.  Biochemistry, 2007; 46; 9225-9238.

Rajalingam, D., Kacer, D., Prudovsky, I., Kumar, TKS. Molecular Cloning, Overexpression and Characterization of Interleukin 1 alpha. Biochem. Biophys. Res. Commun., 2007; 360: 604-608.

Kathir, K, Ibrahim, K., Rajalingam, D., Prudovsky, I., Yu, C., Kumar TKS. S100A13-Lipid Interactions Role in the Non-Classical Release of the Acidic Fibroblast Growth Factor. Biochim. Biophys. Acta, ,2007; 1768: 3080-3089.

Nikopoulos, G., Duarte, M., Kubu, C., Bellum, S., Friesel, R., Maciag, T., Prudovsky, I., Verdi, J., Soluble Jagged1 Attenuates Lateral Inhibition, Allowing for Expansion of Neural Crest Stem Cells. Stem Cells, 2007; 25: 3133-3142.

Prudovsky, I., Tarantini, F., Landriscina, M., Neivandt, D.,  Soldi, R., Kirov, A., Small, D., Kathir, KM,  Rajalingam D., Kumar, TKS. Secretion Without Golgi. J Cell. Biochem., 2008; 3: 1327-1343.

Leclair, RJ, Wang, Q, Benson, MA, Prudovsky, I, Lindner, V. Intracellular Localization of Cthrc1 Characterizes Differentiated Smooth Muscle Cells". Arterioscler Thromb Vasc Biol., 2008; 28:1332-1338.

Lee, CW, Raskett, CM, Prudovsky, I, Altieri, DC. Molecular Dependence of Estrogen Receptor-Negative Breast Cancer on a Notch-Survivin Signaling Axis. Cancer Res., 2008, 68: 5273-81.

Di Serio, C, Doria, L, Pellerito, S, Prudovsky, I, Micucci, I, Massi , D, Landriscina, M, Marchionni, N, Masotti, G., Tarantini,  F. The Release of Fibroblast Growth Factor-1 from Melanoma Cells Requires Copper Ions and is Mediated by Phosphatidylinositol 3-kinase/Akt Intracellular Signaling Pathway. Cancer Letters, 2008, 267:67-74.

Nikopoulos, GN, Adams, TL, Adams, D, Oxburgh, L, Prudovsky, I, Verdi, JM. The Use of Endo-Porter to Deliver Morpholinos in Kidney Organ Culture. Biotechniques, 2008: 44: 547-549.

Duarte, M, Kolev, V, Kacer, D, Mouta-Bellum, C, Soldi, R, Graziani, I, Kirov, A, Friesel, R, Liaw, L, Small, D, Verdi, J, Maciag, T, Prudovsky, I. Novel Cross-Talk between Three Cardiovascular Regulators: Thrombin Cleavage Fragment of Jagged 1 Induces FGF1 Expression and Release, 2008, Mol. Biol. Cell. Epub ahead of print.

Lab Photo

Left to right: Hongchuan Wang, Doreen Kacer, Alek Kirov, Igor Prudovsky, Phil Solomon, Huda Al-Hashimi.



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