[Tapez un texte] PRIX CENTRE D’ETUDES PRINCESSE JOSÉPHINE-CHARLOTTE 2011 10 NOVEMBRE 2011 CONTACT : Christel Buelens christel.buelens@frs-fnrs.be 02/504.92.96 F.R.S. – FNRS Fonds de la Recherche Scientifique-FNRS REMISE DU « PRIX CENTRE D’ETUDES PRINCESSE JOSÉPHINE-CHARLOTTE 2011 » LE JEUDI 10 NOVEMBRE 2011 À 11H30 En vue de soutenir la recherche scientifique dans le domaine de la lutte contre les infections virales, le Centre d’Etudes Princesse Joséphine-Charlotte a chargé le Fonds de la Recherche Scientifique – FNRS d’attribuer, tous les deux ans, un Prix de 12.500 €. Ce 10 novembre 2011, le F.R.S. – FNRS procède, en présence de représentants du monde universitaire et du Centre d’Etudes Princesse Joséphine-Charlotte, à la remise du douzième Prix biennal. Le Prix 2011 a été attribué à : Herman FAVOREEL, Bio-Ir. Cel- en Genbiotechnologie (U.Gent), Dr. Diergeneeskundige wetenschappen (U.Gent), Hoofddocent (U.Gent), pour son travail : Alphaherpesvirus cell-to-cell spread through manipulation of the actin cytoskeleton by the viral US3 protein kinase Herman FAVOREEL – Ghent University (UGent) Viruses are obligate intracellular parasites, only able to replicate inside a host cell. To be able to reach and infect new host cells, viruses must exit a previously infected cell and travel through the extracellular milieu to a new host cell. However, during passage in the extracellular space, viral pathogens face hostile components of the immune system such as neutralizing antibodies. Alternatively, some viruses have developed strategies to spread directly from one cell to another (direct cell-to-cell spread), thereby avoiding the inhospitable extracellular space. We have discovered a new mode of such direct cell-to-cell spread by herpesviruses, which constitute some of the most successfull and important viral pathogens worldwide. We have found that the US3 protein kinase of herpesviruses forces the infected cell to remodel its actin cytoskeleton, resulting in the formation of long cell projections. These cell projections contact distant uninfected cells and firmly attach to these uninfected cells. Virus particles use these cell projections as tunnels to efficiently reach and infect the contacted distant cells. Inside these ‘tunnels’, the viruses are shielded from virus-neutralizing antibodies in the extracellular milieu. We found that the US3 protein kinase triggers the actin changes and cell projections in infected cells by activating cellular p21-activating kinases, which are key components of the cellular signaling pathways that regulate the actin cytoskeleton. These findings shed new light on the complex and fascinating interaction of herpesviruses with host cells and the immune system, and identify novel potential targets for the development of antiviral strategies. 2 Monsieur Herman FAVOREEL Hoofddocent à l’Universiteit Gent “Alphaherpesvirus cell-to-cell spread through manipulation of the actin cytoskeleton by the viral US3 protein kinase” 3 “Alphaherpesvirus cell-to-cell spread through manipulation of the actin cytoskeleton by the viral US3 protein kinase” Herman FAVOREEL – Ghent University (UGent) Viruses are obligate intracellular parasites. In other words, upon infection of a host, they can only replicate inside a cell of this host since they need the enzymatic machinery and building blocks of a host cell for their own replication. Once replication is completed, often with the production of hundreds or thousands of new virus particles, viruses will leave the infected cell and infect a new cell to start another replication cycle. In order to reach a new host cell, viruses must travel some time through the extracellular milieu. During this passage in the extracellular space, the virus is vulnerable, and may be intercepted and/or destroyed by components of the antiviral immune system of the host, including virus-neutralizing antibodies. Hence, it may come as no surprize that many of the most successfull viruses have developed alternative modes of transmission from an infected to an uninfected cell. These consist of direct cell-to-cell spread, thereby limiting or avoiding passage through the inhospitable extracellular space. Herpesviruses indisputably belong to the most successfull viral pathogens worldwide. They most likely have been around for millions of years, co-evolving with their hosts along the way. This has allowed each of the herpesviruses to establish lifelong dormant infections in their host. Specific stimuli may reactivate these dormant herpesviruses, leading to lifelong periods of recurrent symptoms and transmission to new hosts. A typical herpesvirus in humans is the herpes simplex virus, causing recurrent oral and genital lesions. Recurrent reactivation and disease caused by herpesviruses showcases the ability of these pathogens to circumvent efficient elimination by the immune system of the host, including virus-neutralizing antibodies. Identifying the strategies employed by herpesviruses to avoid elimination by the immune system is pivotal, not only in gaining fundamental insights in the biology of these important and highly successfull viruses, but also to design new antiviral strategies and vaccines. We have discovered an entirely novel mode of herpesvirus direct cell-to-cell spread from an infected to an uninfected cell. We have found that a viral protein, the US3 protein kinase, forces the infected host cell to reorganize its actin cytoskeleton. The actin cytoskeleton constitutes a fundamental aspect of the ‘skeleton’ of a cell, and changes in the actin cytoskeleton may therefore drive substantial changes in the shape and behaviour of a cell. We have found that these virus-induced changes in the actin cytoskeleton result in the formation of very long cell projections. These cell projections make contact with other, distant cells, and firmly attach to these cells. Video microscopy of fluorescently labeled viruses showed that the viruses use these cell projections as a kind of tunnel. They rapidly migrate inside the projections, followed by transmission into the contacted, previously uninfected host cells. Addition of virus-neutralizing antibodies could not prevent this mode of spread, indicating that using these cellular ‘tunnels’, the virus does not expose itself to the virusneutralizing antibodies in the extracellular milieu. We have demonstrated that the US3 protein of herpesviruses induces these actin and cell shape changes by phosphorylating and thereby activating p21-activated kinases, which are central components in the cellular signaling pathways that regulate the actin cytoskeleton. 4 These findings create new insights in the complex and fascinating interactions between herpesviruses and their host cells, and open up new avenues in the design of antiviral strategies, by targeting the viral proteins responsible for triggering these events (i.e. the US3 protein kinase) and/or the cellular proteins that drive the resulting actin and cell shape changes (i.e. p21-activated kinases). 5 CURRICULUM VITAE EDUCATION & CAREER Bio-ingenieur in de cel- en genbiotechnologie Ghent University, Faculty of Applied Biological Sciences 1990 – great distinction Doctoraat in de diergeneeskundige wetenschappen Ghent University, Faculty of Veterinary Medicine Promoter: H. Nauwynck 1999 – greatest distinction Postdoctoral fellow Princeton University, Department of Molecular Biology Fullbright and B.A.E.F. Postdoctoral Fellow PI: L. Enquist 2000 – 2001 Postdoctoral researcher Ghent University, Faculty of Veterinary Medicine PI: M. Pensaert/H. Nauwynck 2001 – 2004 Assistant professor (docent – BOF-ZAP) Ghent University, Faculty of Veterinary Medicine 2004 – 2010 Associate professor (hoofddocent – BOF-ZAP) Ghent University, Faculty of Veterinary Medicine 2010 – present HONORS & AWARDS 2000: 2000: 2007: Fulbright postdoctoral fellowship Belgian American Educational Foundation postdoctoral fellowship Prijs van de Koninklijke Academie voor Geneeskunde – afdeling Diergeneeskunde 2004-2007 PROFESSIONAL EXPERIENCE 2011 – present: Editor of PLoS ONE 2005 – present: Board Member of the Belgian Society for Microbiology 6 2005 – present: Chair ‘Veterinary Satellite Meeting’ of the annual International Herpesvirus Workshop (IHW) 2011: Member of the Scientific Committee of the IHW, Gdansk, Poland, July 22-28 2005: Chair ‘2nd ESVV Veterinary Herpesvirus Symposium’, March 2-4 2005 – present: coordinator ‘Research’ option Master in Veterinary Medicine SELECTED PUBLICATIONS Favoreel, H.W., Van Minnebruggen, G., Adriaensen, D., & Nauwynck, H.J. (2005). Cytoskeletal rearrangements and cell extensions induced by the US3 kinase of an alphaherpesvirus are associated with enhanced spread. PNAS (Proceeding of the National Academy of Sciences of the USA), 102, 8990-8995. Favoreel, H.W., Enquist, L.W., & Feierbach, B. (2007). Review: Actin and Rho GTPases in herpesvirus biology. Trends in Microbiology, 15, 426-433. De Regge, N., Nauwynck, H.J., Geenen, K., Krummenacher, C., Cohen, G., Eisenberg, R., Mettenleiter, T.C., & Favoreel, H.W. (2006). Alpha-herpesvirus gD interaction with sensory neurons triggers formation of varicosities that serve as virus exit sites. Journal of Cell Biology, 174, 267-275. Van den Broeke, C., Radu, M., Deruelle, M., Nauwynck, H., Hofmann, C., Jaffer, Z., Chernoff, J., & Favoreel, H.W. (2009). Alphaherpesvirus US3-mediated reorganization of the actin cytoskeleton is mediated by group A p21-activated kinases. PNAS (Proceeding of the National Academy of Sciences of the USA), 106, 8707-8712. Van den Broeke, C., Radu, M., Chernoff, J., & Favoreel, H.W. (2010). An emerging role for p21activated kinases (Paks) in viral infections. Trends in Cell Biology, 20, 160-169. PEER-REVIEWED PUBLICATIONS Favoreel, H.W., Nauwynck, H.J., Van Oostveldt, P., Mettenleiter, T.C. & Pensaert, M.B. (1997). Antibody-induced and cytoskeleton-mediated redistribution and shedding of viral glycoproteins, expressed on pseudorabies virus infected cells. Journal of Virology 71, 82548261. Duan, X., Nauwynck, H.J., Favoreel, H.W. & Pensaert, M.B. (1998). Identification of a putative receptor for porcine reproductive and respiratory syndrome virus on porcine alveolar macrophages. Journal of Virology 72, 4520-4523. Favoreel, H.W., Nauwynck, H.J., Halewyck, H.M., Van Oostveldt, P., Mettenleiter, T.C. & Pensaert, M.B. (1999). Antibody-induced endocytosis of viral glycoproteins and major histocompatibility complex class I on pseudorabies virus-infected monocytes. Journal of General Virology 80, 1283-1291. 7 Favoreel, H.W., Nauwynck, H.J. & Pensaert, M.B. (1999). Role of the cytoplasmic tail of gE during antibody-induced redistribution of viral glycoproteins, expressed on pseudorabies virus-infected cells. Virology 259, 141-147. Nauwynck, H.J., Duan, X., Favoreel, H.W., Van Oostveldt, P. & Pensaert, M.B. (1999). Entry of porcine reproductive and respiratory syndrome virus into porcine alveolar macrophages via receptor-mediated endocytosis. Journal of General Virology 80, 297-305. Favoreel, H.W., Nauwynck, H.J., Van Oostveldt, P. & Pensaert, M.B. (2000). Role of anti-gB and -gD antibodies in antibody-induced endocytosis of viral and cellular cell surface glycoproteins on pseudorabies virus-infected monocytes. Virology 267,151-158. Favoreel, H.W., Nauwynck, H.J. & Pensaert, M.B. (2000). Immunological hiding of herpesvirusinfected cells. Archives of Virology 145, 1269-1290. Nauwynck, H., Favoreel, H., & Pensaert, M. (2000). Functions of viral glycoproteins in the pathogenesis of Aujeszky’s disease virus in pigs. Veterinary Research 31, 116-117. Favoreel, H.W., Nauwynck, H.J., Van Oostveldt, P., & Pensaert, M.B. (2000). Antibody-induced endocytosis of viral glycoproteins, expressed on pseudorabies virus-infected monocytes protects these cells from complement-mediated lysis. Veterinary Research 31, 136-137. Van de Walle, G.R., Favoreel, H.W., Nauwynck, H.J., Van Oostveldt, P. & Pensaert, M.B. (2001). Involvement of cellular cytoskeleton proteins in antibody-induced internalization of viral glycoproteins in pseudorabies virus-infected monocytes. Virology 288, 129-138. Van Minnebruggen, G., Van de Walle, G.R., Favoreel, H.W., Nauwynck, H.J. & Pensaert, M.B. (2002). Temporary disturbance of actin stress fibers in swine kidney cells during a pseudorabies virus infection. Veterinary Microbiology 86, 89-94. Van de Walle, G.R., Favoreel, H.W., Nauwynck, H.J., Van Oostveldt, P. & Pensaert, M.B. (2002). Antibody-induced internalization of viral glycoproteins in pseudorabies virus-infected monocytes and role of the cytoskeleton: a confocal study. Veterinary Microbiology 86, 5157. Favoreel, H.W., Van Minnebruggen, G., Nauwynck, H.J., Enquist, L.W. & Pensaert, M.B. (2002). A tyrosine-based motif in the cytoplasmic tail of pseudorabies virus glycoprotein B is important both for antibody-induced internalization of viral glycoproteins and efficient cell-to-cell spread. Journal of Virology, 76, 6845-6851. Favoreel, H.W., Van de Walle, G.R., Nauwynck, H.J. & Pensaert, M.B. (2003). Virus complement evasion strategies. Journal of General Virology, 84, 1-15. Van de Walle, G.R., Favoreel, H.W., Nauwynck, H.J., Mettenleiter, T.C. & Pensaert, M.B. (2003). Transmission of pseudorabies virus from the immuno-masked monocyte to endothelial cells in vitro. Journal of General Virology, 84, 629-637. Van de Walle, G.R., Favoreel, H.W., Nauwynck, H.J. & Pensaert, M.B. (2003). Antibodyinduced internalization of viral glycoproteins and gE-gI Fc receptor activity protect pseudorabies virus-infected monocytes from complement-mediated lysis. Journal of General Virology, 84, 939-947. Van Minnebruggen, G., Favoreel, H.W., Nauwynck, H.J., Jacobs, L.. & Pensaert, M. B. (2003). Pseudorabies virus US3 protein kinase mediates actin stress fiber breakdown. Journal of Virology, 77, 9074-9080. Vanderheijden, N. Delputte, P., Favoreel, H.W., Vandekerckhove, J., Van Damme, J., Van Woensel, P.A. & Nauwynck, H.J. (2003). Sialoadhesin can serve as an endocytic receptor mediating porcine arterivirus entry in alveolar macrophages. Journal of Virology, 77, 82078215. 8 Favoreel, H.W., Van de Walle, G.R., Nauwynck, H.J. & Pensaert, M.B. (2003). Pseudorabies virus-specific antibodies suppress intracellular viral protein expression in pseudorabies virusinfected monocytes. Journal of General Virology, 84, 2969-2973. Favoreel, H.W., Mettenleiter, T.C. & Nauwynck, H.J. (2004). Co-patching and lipid raft association of different viral glycoproteins, expressed on the surface of pseudorabies virusinfected cells. Journal of Virology, 78, 5279-5287. + cover Pensaert, M., Labarque, G., Favoreel, H., & Nauwynck H. (2004). Aujeszky's disease vaccination and differentiation of vaccinated from infected pigs. Developments in Biologicals, 119, 243-254. Van Minnebruggen, G., Favoreel, H.W., & Nauwynck, H.J. (2004). Internalization of pseudorabies virus glycoprotein B is mediated by an interaction between the YQRL in its cytoplasmic tail and the clathrin-associated AP-2 adaptor complex. Journal of Virology, 78, 8852-8859. Geenen, K., Favoreel, H.W., Olsen, L.-A., Enquist, L.W., & Nauwynck, H.J. (2005). The pseudorabies virus US3 protein kinase possesses anti-apoptotic activity that protects cells from apoptosis during infection and after treatment with sorbitol or staurosporine. Virology, 331, 144-150. Geenen, K., Favoreel, H.W., & Nauwynck, H.J. (2005). Higher resistance of porcine trigeminal ganglion neurons towards pseudorabies virus-induced cell death compared to other porcine cell types in vitro. Journal of General Virology, 86, 1251-1260. Ficinska, J., Nauwynck, H.J., Van Minnebruggen, G., Bienkowska-Szewczyk, K., & Favoreel, H.W. (2005). Pseudorabies virus glycoprotein gD contains a functional endocytosis motif that acts in concert with an endocytosis motif in gB to drive internalization of antibodyantigen complexes from the surface of infected monocytes. Journal of Virology, 79, 72487254. Favoreel, H.W., Van Minnebruggen, G., Adriaensen, D., & Nauwynck, H.J. (2005). Cytoskeletal rearrangements and cell extensions induced by the US3 kinase of an alphaherpesvirus are associated with enhanced spread. PNAS (Proceeding of the National Academy of Sciences of the USA), 102, 8990-8995. Ceelen, L.M., Haesebrouck, F., Favoreel, H., Ducatelle, R., & Decostere, A., (2006). The cytolethal distending toxin among Helicobacter pullorum strains from human and poultry origin. Veterinary Microbiology, 113, 45-53. van der Meulen, K.M., Favoreel, H.W., Pensaert, M.B. & Nauwynck, H.J. (2006). Immune escape of equine herpesvirus 1 and other herpesviruses of veterinary importance. Veterinary Immunology and Immunopathology, 111, 31-40. Geenen, K., Favoreel, H.W., & Nauwynck, H.J. (2006). Cell-type specific resistance of trigeminal ganglion neurons towards apoptotic stimuli. Veterinary Microbiology, 113, 223229. Favoreel, H.W., Van Minnebruggen, G., Van de Walle, G., Ficinska, J., & Nauwynck, H.J. (2006). Herpesvirus interference with virus-specific antibodies: bridging antibodies, internalizing antibodies, and hiding from antibodies. Veterinary Microbiology, 113, 257-263. De Regge, N., Favoreel, H.W., Geenen, K., & Nauwynck, H.J. (2006). A homologous in vitro model to study interactions between alphaherpesviruses and trigeminal ganglion neurons. Veterinary Microbiology, 113, 251-255. Favoreel, H.W. (2006). The why’s of Y-based motifs in alphaherpesvirus envelope proteins. Virus Research, 117, 202-208. 9 De Regge, N., Nauwynck, H.J., Geenen, K., Krummenacher, C., Cohen, G., Eisenberg, R., Mettenleiter, T.C., & Favoreel, H.W. (2006). Alpha-herpesvirus gD interaction with sensory neurons triggers formation of varicosities that serve as virus exit sites. Journal of Cell Biology, 174, 267-275. Glorieux, S., Van den Broeck, W., van der Meulen, K., Van Reeth, K., Favoreel, H.W., & Nauwynck, H.J. (2007). In vitro culture of porcine respiratory nasal mucosa explants for studying the interaction of porcine viruses with the respiratory tract. Journal of Virological Methods, 142, 105-112. Mateusen, B., Van Soom, A., Maes, D.G.D., Favoreel, H., & Nauwynck, H.J. (2007). Receptordetermined susceptibility of preimplantation embryos to pseudorabies virus and porcine reproductive and respiratory syndrome virus. Biology of Reproduction, 76, 415-423. Nauwynck, H., Glorieux, S., Favoreel, H., & Pensaert, M. (2007). Cell biological and molecular characteristics of pseudorabies virus infections in cell cultures and in pigs with emphasis on the respiratory tract. Veterinary Research, 38, 229-241. Geenen, K., Nauwynck, H.J., De Regge, N., Braeckmans, K., & Favoreel, H.W. (2007). Brn-3a suppresses pseudorabies virus-induced cell death in sensory neurons. Journal of General Virology, 88, 743-747. + cover Desplanques, A.S., Nauwynck, H.J., Tilleman, K., Deforce D., & Favoreel, H.W. (2007). Tyrosine phosphorylation and lipid raft association of pseudorabies virus glycoprotein E during antibody-mediated capping. Virology, 362, 60-66. + cover Van Deun, K., Haesebrouck, F., Heyndrickx, M., Favoreel, H.W., Dewulf, J., Ceelen, L., Dumez, L., Messens, W., Van Immerseel, F., Ducatelle, R., & Pasmans, F. (2007). Virulence properties of Campylobacter jejuni isolates from poultry and human origin. Journal of Medical Microbiology, 56, 1284-1289. Deruelle, M., Geenen, K., Nauwynck, H.J., & Favoreel, H.W. (2007). A point mutation in the putative ATP-binding site in the pseudorabies virus US3 protein kinase prevents Bad phoshorylation and cell survival following apoptosis induction Virus Research, 128, 65-70. Favoreel, H.W., Enquist, L.W., & Feierbach, B. (2007). Review: Actin and Rho GTPases in herpesvirus biology. Trends in Microbiology, 15, 426-433. Boyen, F., Pasmans, F., Van Immerseel, F., Morgan, E., Botteldoorn, N., Heyndrickx, M., Volf, J., Favoreel, H., Hernalsteens, J.-P., Ducatelle, R., & Haesebrouck, F. (2008). A limited role for SsrA/B in persistent Salmonella Typhimurium infections in pigs. Veterinary Microbiology, 128, 364-373. Desplanques, A.S., Nauwynck, H.J., Vercauteren, D., & Favoreel, H.W. (2008). Plasma membrane cholesterol is required for efficient pseudorabies virus entry. Virology, 376, 339345. Glorieux, S., Favoreel, H.W., Van den Broeke, W., & Nauwynck, H.J. (2008). Different replication characteristics of historical pseudorabies virus strains in porcine respiratory nasal mucosa explants. Veterinary Microbioogy, 136, 341-346. Ceelen, L.M., Haesebrouck, F., D’Herde, K., Krysko, D.V., Favoreel, H., Vandenabeele, P., Ducatelle, R., & Decostere, A. (2008). Mitotic catastrophe as a prestage to necrosis in mouse liver cells treated with Helicobacter pullorum sonicates. Journal of Morphology, 270, 921-928. Goossens, K., Van Soom, A., Van Zeveren, A., Favoreel, H., & Peelman, L.J. (2009). Quantification of Fibronectin 1 (FN1) splice variants, including two novel ones, and analysis 10 of integrins as candidate FN1 receptors in bovine preimplantation embryos. BMC Developmental Biology, Jan 6, 9, 1. Van den Broeke, C., Deruelle, M., Nauwynck, H.J., Coller, K., Smith, G.A., & Favoreel, H.W. (2009). The kinase activity of pseudorabies virus US3 is required for its actin modulating activity. Virology, 385, 155-160. + cover Van den Broeke, C., Radu, M., Deruelle, M., Nauwynck, H., Hofmann, C., Jaffer, Z., Chernoff, J., & Favoreel, H.W. (2009). Alphaherpesvirus US3-mediated reorganization of the actin cytoskeleton is mediated by group A p21-activated kinases. PNAS (Proceeding of the National Academy of Sciences of the USA), 106, 8707-8712. Thys, M., Nauwynck, H., Maes, D., Hoogewijs, M., Vercauteren, D., Favoreel, H., & Van Soom, A. (2009). Expression and putative function of fibronectin and its receptor (integrin alpha5 beta1) in male and female gametes during bovine fertilization in vitro. Reproduction, 138, 471-482. Van de Walle, G.R., Cox, E., Nauwynck, H.J., & Favoreel, H.W. (2009). The role of dendritic cells in alphaherpesvirus infections: archetypes and paradigms. Reviews in Medical Virology, 19, 338-358. Deruelle, M., Van den Broeke, C., Nauwynck, H., Mettenleiter, T.C., & Favoreel, H.W. (2009). Pseudorabies virus US3- and UL49.5-dependent and-independent mechanisms of MHC I cell surface expression in different cell types.Virology, 395, 172-181. Deruelle, M., De Corte, N., Englebienne, J., Nauwynck, H., & Favoreel, H.W. (2010). Pseudorabies virus US3-mediated inhibition of apoptosis does not affect infectious virus production. Journal of General Virology, 91, 1127-1132. Van den Broeke, C., Radu, M., Chernoff, J., & Favoreel, H.W. (2010). An emerging role for p21activated kinases (Paks) in viral infections. Trends in Cell Biology, invited review, 20, 160-169. Favoreel, H.W., Van den Broeke, C., Desplanques, A., Deruelle, M., Van Minnebruggen, G., Nauwynck, H., Glorieux, S., Van Opdenbosch, N., & De Regge, N. (2010). Alphaherpesvirus use and misuse of cellular actin and cholesterol. Veterinary Microbiology, 143, 2-7. Rasschaert, K., Devriendt, B., Favoreel, H., Goddeeris, B., & Cox, E. (2010). Clathrin-mediated endocytosis and transcytosis of enterotoxigenic Escherichia coli F4 fimbriae in porcine intestinal epithelial cells. Veterinary Immunology and Immunopathology, 137, 243-250. Desplanques, A., Pontes, M., De Corte, N., Verheyen, N., Nauwynck, H., Vercauteren, D., & Favoreel, H.W. (2010). Cholesterol depletion affects infectivity and stability of pseudorabies virus. Virus Research, 152, 180-183. Baré, J., Sabbe, K., Huws, S., Vercauteren, D., Braeckmans, K., van Gremberghe, I., Favoreel, H., & Houf, K. (2010). Influence of temperature, oxygen and bacterial strain identity on the association of Campylobacter jejuni with Acanthamoeba castellani. FEMS Microbiology Ecology, 74, 371-381. De Regge, N., Van Opdenbosch, N., Nauwynck, H., Efstathiou, S., & Favoreel, H.W. (2010). Interferon alpha induces establishment of alphaherpesvirus latency in sensory neurons in vitro. PloS ONE, 5, e13076. Vandaele, L., Wesselingh, W., De Clercq, K., De Leeuw, I., Favoreel, H., Van Soom, A., & Nauwynck, H. (2011). Susceptibility of in vitro produced hatched bovine blastocysts to infection with bluetongue virus serotype 8. Veterinary Research, 42, 14. Delputte, P.L., Van Gorp, H., Favoreel, H.W., Hoebeke, I., Delrue, I., Dewerchin, H., Verdonck, F., Verhasselt, B., Cox, E., & Nauwynck, H.J. (2011). Porcine sialoadhesin (CD169/Siglec-1) is 11 an endocytic receptor that allows targeted delivery of toxins and antigens to macrophages. PLoS ONE, in press. Glorieux, S., Favoreel, H.W., Steukers, L., & Nauwynck, H.J. (2011). A trypsin-like serine protease is involved in pseudorabies virus invasion through the basement membrane barrier of porcine nasal respiratory mucosa. Veterinary Research, in press. Deruelle, M., & Favoreel, H.W. (2011). Keep it in the subfamily: the conserved alphaherpesvirus US3 kinase. Journal of General Virology, 92, 18-30. Van den Broeke, C., Radu, M., Nauwynck, H.J., Chernoff, J., & Favoreel, H.W. (2011). Role of group A p21-activated kinases in the anti-apoptotic activity of the pseudorabies virus US3 protein kinase. Virus Research, 155, 376-380. Jacob, T., Van den Broeke, C., & Favoreel, H.W. (2011). Viral serine/threonine protein kinases. Journal of Virology, 85, 1158-1173. Vandaele, L., Wesselingh, W., De Clercq, K., De Leeuw, I., Favoreel, H., Van Soom, A., & Nauwynck, H. (2011). Susceptibility of in vitro produced hatched bovine blastocysts to infection with bluetongue virus serotype 8. Veterinary Research, 42, 14. Delputte, P.L., Van Gorp, H., Favoreel, H.W., Hoebeke, I., Delrue, I., Dewerchin, H., Verdonck, F., Verhasselt, B., Cox, E., & Nauwynck, H.J. (2011). Porcine sialoadhesin (CD169/Siglec-1) is an endocytic receptor that allows targeted delivery of toxins and antigens to macrophages. PLoS ONE, in press. Vandaele, L., Wesselingh, W., De Clercq, K., De Leeuw, I., Favoreel, H., Van Soom, A., & Nauwynck, H. (2011). Embryonic apoptosis after BTV-8 infection in bovine hatched in vitro produced blastocysts. Reproduction Fertility and Development, 23, 180-181. Glorieux, S., Favoreel, H.W., Steukers, L., Vandekerckhove, A.P., & Nauwynck, H.J. (2011). A trypsin-like serine protease is involved in pseudorabies virus invasion through the basement membrane barrier of porcine nasal respiratory mucosa. Veterinary Research, 42, 58. Wydooghe, E., Vandaele, L., Beek, J., Favoreel, H., Heindryckx, B., De Sutter, P., & Van Soom, A. (2011). Differential apoptotic staining of mammalian blastocysts based on double immunofluorescent CDX2 and active caspase-3 staining. Analytical Biochemistry, in press. Van Opdenbosch, N., De Regge, N., Van Poucke, M., Peelman, L., & Favoreel, H.W. (2011). Effects of interferon on immediate early mRNA and protein levels in sensory neuronal cells infected with pseudorabies virus or herpes simplex virus type 1. Veterinary Microbiology, in press. Ladelfa, M.F., Kotsias, F., Del Médico Zajac, M.P., Van den Broeke, C., Favoreel, H.W., Romera, R.A., & Calamante, G. (2011). Effects of the US3 protein of bovine herpesvirus 5 on the actin cytoskeleton and apoptosis. Veterinary Microbiology, in press. Glorieux, S., Bachert, C., Favoreel, H.W., Vandekerckhove A.P., Steukers, L., Reckecki, A., Van den Broeck, W., Croubels, S., Clayton, R.F., & Nauwynck, H.J. (2011). Herpes simplex virus type 1 penetrates the basement membrane in human nasal respiratory mucosa. PLoS ONE, in press. Van den Broeke, C., & Favoreel, H.W. (2011). Actin’ up: herpesvirus interactions with Rho GTPase signaling. Viruses, in press. Flahou, B., Haesebrouck, F., d’Herde, K., Chiers, K., De Smet, L., Devreese, B., Favoreel, H., Pasmans, F., & Ducatelle, R. (2011). Gastric epithelial cell death caused by Helicobacter suis and Helicobacter pylori -glutamyl transpeptidase is mainly glutathione degradation- dependent. Cellular Microbiology, in press. 12 MEMBRES DU JURY DU « PRIX CENTRE D’ETUDES PRINCESSE JOSÉPHINE-CHARLOTTE 2011 » De h. GOOSSENS Herman Hoogleraar aan de Universiteit Antwerpen Medische Microbiologie Mevr. MATHIEU Chantal Buitengewoon hoogleraar aan de Katholieke Universiteit Leuven Laboratory for Experimental Medicine and Endocrinology (LEGENDO) M. MICHIELS Thomas Professeur à l’Université Catholique de Louvain Pathologie cellulaire et moléculaire De h. MUYLDERMANS Serge Hoofddocent aan de Vrije Universiteit Brussel Cellulaire en Moleculaire Immunologie De h. NAUWYNCK Hans Hoogleraar aan de Universiteit Gent Virologie, Parasitologie, Immunologie De h. PELEMAN Renaat Deeltijds hoofddocent aan de Universiteit Gent Inwendige Ziekten M. RENAULD Jean-Christophe Professeur à l'Université Catholique de Louvain Médecine expérimentale M. THIRY Etienne Professeur à l’Université de Liège Virologie M. van den BERG Thierry Président du Jury Directeur opérationnel du Centre d'Etudes et de Recherches vétérinaires et agrochimiques (CERVA) Virologie et Immunologie aviaires Mme VAN LINT Carine Directeur de recherches du F.R.S.-FNRS Université Libre de Bruxelles Chimie biologique, Virologie moléculaire * * * M. CONTENT Jean Directeur honoraire de l'Institut Pasteur de Bruxelles Administrateur du Centre d’Etudes 13