THY-1 Cell Surface Antigen (CD90) Has an Important Role in the Initial Stage of Human Cytomegalovirus Infection
Human cytomegalovirus (HCMV) is an important human pathogen that infects about half the US population and is a major cause of birth defects and morbidity in transplant recipients. Despite extensive research, much is still unknown regarding how the virus enters cells. We identified THY-1, a protein on the surface of many different cell types susceptible to CMV infection, as having an important role for facilitating virus infection. We found that antibody to THY-1 or soluble THY-1 protein blocked HCMV infection in multiple cell types, suggesting that THY-1 might serve as a potential therapeutic target to reduce infection. Expression of exogenous THY-1 increased susceptibility of cells to HCMV infection. We showed that THY-1 has an important role in a host signaling pathway that is initiated when HCMV infects cells. Furthermore, we found that THY-1 interacted with HCMV glycoproteins that initiate entry of virus into the cell. THY-1 is known to interact with several host cell proteins important for infection and is expressed on numerous types of cells that can be infected by HCMV. Thus, we have identified THY-1 as a molecule that has an important role in the initial stage of HCMV infection.
Vyšlo v časopise:
THY-1 Cell Surface Antigen (CD90) Has an Important Role in the Initial Stage of Human Cytomegalovirus Infection. PLoS Pathog 11(7): e32767. doi:10.1371/journal.ppat.1004999
Kategorie:
Research Article
prolekare.web.journal.doi_sk:
https://doi.org/10.1371/journal.ppat.1004999
Souhrn
Human cytomegalovirus (HCMV) is an important human pathogen that infects about half the US population and is a major cause of birth defects and morbidity in transplant recipients. Despite extensive research, much is still unknown regarding how the virus enters cells. We identified THY-1, a protein on the surface of many different cell types susceptible to CMV infection, as having an important role for facilitating virus infection. We found that antibody to THY-1 or soluble THY-1 protein blocked HCMV infection in multiple cell types, suggesting that THY-1 might serve as a potential therapeutic target to reduce infection. Expression of exogenous THY-1 increased susceptibility of cells to HCMV infection. We showed that THY-1 has an important role in a host signaling pathway that is initiated when HCMV infects cells. Furthermore, we found that THY-1 interacted with HCMV glycoproteins that initiate entry of virus into the cell. THY-1 is known to interact with several host cell proteins important for infection and is expressed on numerous types of cells that can be infected by HCMV. Thus, we have identified THY-1 as a molecule that has an important role in the initial stage of HCMV infection.
Zdroje
1. Mocarski ES, Shenk T, Pass RF (2007) Cytomegaloviruses. In: Knipe DMPMH, editor. Fields Virology. Philadelphia, PA: Lippincott, Williams & Wilikins. pp. 2704–2773.
2. Sinzger C, Grefte A, Plachter B, Gouw AS, The TH, et al. (1995) Fibroblasts, epithelial cells, endothelial cells and smooth muscle cells are major targets of human cytomegalovirus infection in lung and gastrointestinal tissues. J Gen Virol 76 (Pt 4): 741–750.
3. Compton T, Feire A (2007) Early events in human cytomegalovirus infection. In: Arvin A, Campadelli-Fiume G, Mocarski E, Moore PS, Roizman B et al., editors. Human Herpesviruses: Biology, Therapy, and Immunoprophylaxis. Cambridge.
4. Wang D, Shenk T (2005) Human cytomegalovirus UL131 open reading frame is required for epithelial cell tropism. J Virol 79: 10330–10338. 16051825
5. Ryckman BJ, Chase MC, Johnson DC (2008) HCMV gH/gL/UL128-131 interferes with virus entry into epithelial cells: evidence for cell type-specific receptors. Proc Natl Acad Sci U S A 105: 14118–14123. doi: 10.1073/pnas.0804365105 18768787
6. Hahn G, Revello MG, Patrone M, Percivalle E, Campanini G, et al. (2004) Human cytomegalovirus UL131-128 genes are indispensable for virus growth in endothelial cells and virus transfer to leukocytes. J Virol 78: 10023–10033. 15331735
7. Eisenberg RJ, Atanasiu D, Cairns TM, Gallagher JR, Krummenacher C, et al. (2012) Herpes virus fusion and entry: a story with many characters. Viruses 4: 800–832. doi: 10.3390/v4050800 22754650
8. Wille PT, Wisner TW, Ryckman B, Johnson DC (2013) Human Cytomegalovirus (HCMV) Glycoprotein gB Promotes Virus Entry In Trans Acting as the Viral Fusion Protein Rather than as a Receptor-Binding Protein. MBio 4.
9. Carlson C, Britt WJ, Compton T (1997) Expression, purification, and characterization of a soluble form of human cytomegalovirus glycoprotein B. Virology 239: 198–205. 9426459
10. Vanarsdall AL, Ryckman BJ, Chase MC, Johnson DC (2008) Human cytomegalovirus glycoproteins gB and gH/gL mediate epithelial cell-cell fusion when expressed either in cis or in trans. J Virol 82: 11837–11850. doi: 10.1128/JVI.01623-08 18815310
11. Kari B, Gehrz R (1993) Structure, composition and heparin binding properties of a human cytomegalovirus glycoprotein complex designated gC-II. J Gen Virol 74 (Pt 2): 255–264.
12. Compton T, Nowlin DM, Cooper NR (1993) Initiation of human cytomegalovirus infection requires initial interaction with cell surface heparan sulfate. Virology 193: 834–841. 8384757
13. Kari B, Gehrz R (1992) A human cytomegalovirus glycoprotein complex designated gC-II is a major heparin-binding component of the envelope. J Virol 66: 1761–1764. 1310777
14. Soroceanu L, Akhavan A, Cobbs CS (2008) Platelet-derived growth factor-alpha receptor activation is required for human cytomegalovirus infection. Nature 455: 391–395. doi: 10.1038/nature07209 18701889
15. Vanarsdall AL, Wisner TW, Lei H, Kazlauskas A, Johnson DC (2012) PDGF Receptor-alpha Does Not Promote HCMV Entry into Epithelial and Endothelial Cells but Increased Quantities Stimulate Entry by an Abnormal Pathway. PLoS Pathog 8: e1002905. doi: 10.1371/journal.ppat.1002905 23028311
16. Wang X, Huong SM, Chiu ML, Raab-Traub N, Huang ES (2003) Epidermal growth factor receptor is a cellular receptor for human cytomegalovirus. Nature 424: 456–461. 12879076
17. Halary F, Amara A, Lortat-Jacob H, Messerle M, Delaunay T, et al. (2002) Human cytomegalovirus binding to DC-SIGN is required for dendritic cell infection and target cell trans-infection. Immunity 17: 653–664. 12433371
18. Feire AL, Roy RM, Manley K, Compton T (2010) The glycoprotein B disintegrin-like domain binds beta 1 integrin to mediate cytomegalovirus entry. J Virol 84: 10026–10037. doi: 10.1128/JVI.00710-10 20660204
19. Feire AL, Koss H, Compton T (2004) Cellular integrins function as entry receptors for human cytomegalovirus via a highly conserved disintegrin-like domain. Proc Natl Acad Sci U S A 101: 15470–15475. 15494436
20. Nogalski MT, Chan G, Stevenson EV, Gray S, Yurochko AD (2011) Human cytomegalovirus-regulated paxillin in monocytes links cellular pathogenic motility to the process of viral entry. J Virol 85: 1360–1369. doi: 10.1128/JVI.02090-10 21084488
21. Boehme KW, Guerrero M, Compton T (2006) Human cytomegalovirus envelope glycoproteins B and H are necessary for TLR2 activation in permissive cells. J Immunol 177: 7094–7102. 17082626
22. Wang X, Huang DY, Huong SM, Huang ES (2005) Integrin alphavbeta3 is a coreceptor for human cytomegalovirus. Nat Med 11: 515–521. 15834425
23. Mercer J, Helenius A (2012) Gulping rather than sipping: macropinocytosis as a way of virus entry. Curr Opin Microbiol 15: 490–499. doi: 10.1016/j.mib.2012.05.016 22749376
24. Inaba T, Shimano H, Gotoda T, Harada K, Shimada M, et al. (1993) Expression of platelet-derived growth factor beta receptor on human monocyte-derived macrophages and effects of platelet-derived growth factor BB dimer on the cellular function. J Biol Chem 268: 24353–24360. 8226985
25. Abaan OD, Polley EC, Davis SR, Zhu YJ, Bilke S, et al. (2013) The exomes of the NCI-60 panel: a genomic resource for cancer biology and systems pharmacology. Cancer Res 73: 4372–4382. doi: 10.1158/0008-5472.CAN-12-3342 23856246
26. Weinstein JN (2004) Integromic analysis of the NCI-60 cancer cell lines. Breast Dis 19: 11–22. 15687693
27. Weinstein JN (2006) Spotlight on molecular profiling: "Integromic" analysis of the NCI-60 cancer cell lines. Mol Cancer Ther 5: 2601–2605. 17088435
28. Shankavaram UT, Reinhold WC, Nishizuka S, Major S, Morita D, et al. (2007) Transcript and protein expression profiles of the NCI-60 cancer cell panel: an integromic microarray study. Mol Cancer Ther 6: 820–832. 17339364
29. Schowalter RM, Reinhold WC, Buck CB (2012) Entry tropism of BK and Merkel cell polyomaviruses in cell culture. PLoS One 7: e42181. doi: 10.1371/journal.pone.0042181 22860078
30. Weller ML, Amornphimoltham P, Schmidt M, Wilson PA, Gutkind JS, et al. (2010) Epidermal growth factor receptor is a co-receptor for adeno-associated virus serotype 6. Nat Med 16: 662–664. doi: 10.1038/nm.2145 20473307
31. Quinn K, Brindley MA, Weller ML, Kaludov N, Kondratowicz A, et al. (2009) Rho GTPases modulate entry of Ebola virus and vesicular stomatitis virus pseudotyped vectors. J Virol 83: 10176–10186. doi: 10.1128/JVI.00422-09 19625394
32. Brindley MA, Hunt CL, Kondratowicz AS, Bowman J, Sinn PL, et al. (2011) Tyrosine kinase receptor Axl enhances entry of Zaire ebolavirus without direct interactions with the viral glycoprotein. Virology 415: 83–94. doi: 10.1016/j.virol.2011.04.002 21529875
33. Di Pasquale G, Davidson BL, Stein CS, Martins I, Scudiero D, et al. (2003) Identification of PDGFR as a receptor for AAV-5 transduction. Nat Med 9: 1306–1312. 14502277
34. Ross DT, Scherf U, Eisen MB, Perou CM, Rees C, et al. (2000) Systematic variation in gene expression patterns in human cancer cell lines. Nat Genet 24: 227–235. 10700174
35. Sinzger C, Hahn G, Digel M, Katona R, Sampaio KL, et al. (2008) Cloning and sequencing of a highly productive, endotheliotropic virus strain derived from human cytomegalovirus TB40/E. J Gen Virol 89: 359–368. doi: 10.1099/vir.0.83286-0 18198366
36. Marchini A, Liu H, Zhu H (2001) Human cytomegalovirus with IE-2 (UL122) deleted fails to express early lytic genes. J Virol 75: 1870–1878. 11160686
37. O'Connor CM, Murphy EA (2012) A myeloid progenitor cell line capable of supporting human cytomegalovirus latency and reactivation, resulting in infectious progeny. J Virol 86: 9854–9865. doi: 10.1128/JVI.01278-12 22761372
38. Paull KD, Shoemaker RH, Hodes L, Monks A, Scudiero DA, et al. (1989) Display and analysis of patterns of differential activity of drugs against human tumor cell lines: development of mean graph and COMPARE algorithm. J Natl Cancer Inst 81: 1088–1092. 2738938
39. Bradley JE, Ramirez G, Hagood JS (2009) Roles and regulation of Thy-1, a context-dependent modulator of cell phenotype. Biofactors 35: 258–265. doi: 10.1002/biof.41 19422052
40. Zhou Y, Hagood JS, Lu B, Merryman WD, Murphy-Ullrich JE (2010) Thy-1-integrin alphav beta5 interactions inhibit lung fibroblast contraction-induced latent transforming growth factor-beta1 activation and myofibroblast differentiation. J Biol Chem 285: 22382–22393. doi: 10.1074/jbc.M110.126227 20463011
41. Cannon MJ, Hyde TB, Schmid DS (2011) Review of cytomegalovirus shedding in bodily fluids and relevance to congenital cytomegalovirus infection. Rev Med Virol 21: 240–255. doi: 10.1002/rmv.695 21674676
42. Boeckh M, Huang M, Ferrenberg J, Stevens-Ayers T, Stensland L, et al. (2004) Optimization of quantitative detection of cytomegalovirus DNA in plasma by real-time PCR. J Clin Microbiol 42: 1142–1148. 15004066
43. Smuda C, Bogner E, Radsak K (1997) The human cytomegalovirus glycoprotein B gene (ORF UL55) is expressed early in the infectious cycle. J Gen Virol 78 (Pt 8): 1981–1992.
44. Spaete RR, Thayer RM, Probert WS, Masiarz FR, Chamberlain SH, et al. (1988) Human cytomegalovirus strain Towne glycoprotein B is processed by proteolytic cleavage. Virology 167: 207–225. 2460994
45. Vanarsdall AL, Chase MC, Johnson DC (2011) HCMV glycoprotein gO complexes with gH/gL promoting interference with viral entry into human fibroblasts, but not entry into epithelial cells. J Virol 85: 11638–11645. doi: 10.1128/JVI.05659-11 21880752
46. Li Q, Ali MA, Cohen JI (2006) Insulin degrading enzyme is a cellular receptor mediating varicella-zoster virus infection and cell-to-cell spread. Cell 127: 305–316. 17055432
47. Vey M, Schafer W, Reis B, Ohuchi R, Britt W, et al. (1995) Proteolytic processing of human cytomegalovirus glycoprotein B (gpUL55) is mediated by the human endoprotease furin. Virology 206: 746–749. 7726996
48. Britt WJ, Vugler LG (1989) Processing of the gp55-116 envelope glycoprotein complex (gB) of human cytomegalovirus. J Virol 63: 403–410. 2535741
49. Adler J, Parmryd I (2010) Quantifying colocalization by correlation: the Pearson correlation coefficient is superior to the Mander's overlap coefficient. Cytometry A 77: 733–742. doi: 10.1002/cyto.a.20896 20653013
50. Barker TH, Hagood JS (2009) Getting a grip on Thy-1 signaling. Biochim Biophys Acta 1793: 921–923. doi: 10.1016/j.bbamcr.2008.10.004 19007822
51. Taylor JM, Lin E, Susmarski N, Yoon M, Zago A, et al. (2007) Alternative entry receptors for herpes simplex virus and their roles in disease. Cell Host Microbe 2: 19–28. 18005714
52. Jae LT, Raaben M, Herbert AS, Kuehne AI, Wirchnianski AS, et al. (2014) Virus entry. Lassa virus entry requires a trigger-induced receptor switch. Science 344: 1506–1510. doi: 10.1126/science.1252480 24970085
53. Johannsdottir HK, Mancini R, Kartenbeck J, Amato L, Helenius A (2009) Host cell factors and functions involved in vesicular stomatitis virus entry. J Virol 83: 440–453. doi: 10.1128/JVI.01864-08 18971266
54. Schelhaas M, Shah B, Holzer M, Blattmann P, Kuhling L, et al. (2012) Entry of human papillomavirus type 16 by actin-dependent, clathrin- and lipid raft-independent endocytosis. PLoS Pathog 8: e1002657. doi: 10.1371/journal.ppat.1002657 22536154
55. McCormick AL, Roback L, Wynn G, Mocarski ES (2013) Multiplicity-dependent activation of a serine protease-dependent cytomegalovirus-associated programmed cell death pathway. Virology 435: 250–257. doi: 10.1016/j.virol.2012.08.042 23159167
56. Schierling K, Buser C, Mertens T, Winkler M (2005) Human cytomegalovirus tegument protein ppUL35 is important for viral replication and particle formation. J Virol 79: 3084–3096. 15709028
57. Feng X, Schroer J, Yu D, Shenk T (2006) Human cytomegalovirus pUS24 is a virion protein that functions very early in the replication cycle. J Virol 80: 8371–8378. 16912288
58. Howes MT, Kirkham M, Riches J, Cortese K, Walser PJ, et al. (2010) Clathrin-independent carriers form a high capacity endocytic sorting system at the leading edge of migrating cells. J Cell Biol 190: 675–691. doi: 10.1083/jcb.201002119 20713605
59. Helenius A (2007) Virus entry and uncoating. In: Knipe DMaH, P. M., editor. Fields Virology. Philadelphia, PA Wolters Kluwer/Lippincott Williams & Wikins. pp. 99–118.
60. Gudleski-O'Regan N, Greco TM, Cristea IM, Shenk T (2012) Increased expression of LDL receptor-related protein 1 during human cytomegalovirus infection reduces virion cholesterol and infectivity. Cell Host Microbe 12: 86–96. doi: 10.1016/j.chom.2012.05.012 22817990
61. Leis M, Marschall M, Stamminger T (2004) Downregulation of the cellular adhesion molecule Thy-1 (CD90) by cytomegalovirus infection of human fibroblasts. J Gen Virol 85: 1995–2000. 15218185
62. Smirnov SV, Harbacheuski R, Lewis-Antes A, Zhu H, Rameshwar P, et al. (2007) Bone-marrow-derived mesenchymal stem cells as a target for cytomegalovirus infection: implications for hematopoiesis, self-renewal and differentiation potential. Virology 360: 6–16. 17113121
63. Gredmark S, Straat K, Homman-Loudiyi M, Kannisto K, Soderberg-Naucler C (2007) Human cytomegalovirus downregulates expression of receptors for platelet-derived growth factor by smooth muscle cells. J Virol 81: 5112–5120. 17344284
64. Leyton L, Schneider P, Labra CV, Ruegg C, Hetz CA, et al. (2001) Thy-1 binds to integrin beta(3) on astrocytes and triggers formation of focal contact sites. Curr Biol 11: 1028–1038. 11470407
65. Avalos AM, Labra CV, Quest AF, Leyton L (2002) Signaling triggered by Thy-1 interaction with beta 3 integrin on astrocytes is an essential step towards unraveling neuronal Thy-1 function. Biol Res 35: 231–238. 12415741
66. Avalos AM, Valdivia AD, Munoz N, Herrera-Molina R, Tapia JC, et al. (2009) Neuronal Thy-1 induces astrocyte adhesion by engaging syndecan-4 in a cooperative interaction with alphavbeta3 integrin that activates PKCalpha and RhoA. J Cell Sci 122: 3462–3471. doi: 10.1242/jcs.034827 19723805
67. Chan G, Nogalski MT, Stevenson EV, Yurochko AD (2012) Human cytomegalovirus induction of a unique signalsome during viral entry into monocytes mediates distinct functional changes: a strategy for viral dissemination. J Leukoc Biol 92: 743–752. doi: 10.1189/jlb.0112040 22715139
68. Herrera-Molina R, Frischknecht R, Maldonado H, Seidenbecher CI, Gundelfinger ED, et al. (2012) Astrocytic alphaVbeta3 integrin inhibits neurite outgrowth and promotes retraction of neuronal processes by clustering Thy-1. PLoS One 7: e34295. doi: 10.1371/journal.pone.0034295 22479590
69. Chen Y, Thelin WR, Yang B, Milgram SL, Jacobson K (2006) Transient anchorage of cross-linked glycosyl-phosphatidylinositol-anchored proteins depends on cholesterol, Src family kinases, caveolin, and phosphoinositides. J Cell Biol 175: 169–178. 17030987
70. Yurochko AD, Hwang ES, Rasmussen L, Keay S, Pereira L, et al. (1997) The human cytomegalovirus UL55 (gB) and UL75 (gH) glycoprotein ligands initiate the rapid activation of Sp1 and NF-kappaB during infection. J Virol 71: 5051–5059. 9188570
71. Coyne CB, Bergelson JM (2006) Virus-induced Abl and Fyn kinase signals permit coxsackievirus entry through epithelial tight junctions. Cell 124: 119–131. 16413486
72. Britt WJ, Vugler LG (1992) Oligomerization of the human cytomegalovirus major envelope glycoprotein complex gB (gp55-116). J Virol 66: 6747–6754. 1328688
73. Fouts AE, Comps-Agrar L, Stengel KF, Ellerman D, Schoeffler AJ, et al. (2014) Mechanism for neutralizing activity by the anti-CMV gH/gL monoclonal antibody MSL-109. Proc Natl Acad Sci U S A.
74. Sharma S, Wisner TW, Johnson DC, Heldwein EE (2013) HCMV gB shares structural and functional properties with gB proteins from other herpesviruses. Virology 435: 239–249. doi: 10.1016/j.virol.2012.09.024 23089254
75. Balanis N, Carlin CR (2012) Mutual cross-talk between fibronectin integrins and the EGF receptor: Molecular basis and biological significance. Cell Logist 2: 46–51. 22645710
76. Baron W, Shattil SJ, ffrench-Constant C (2002) The oligodendrocyte precursor mitogen PDGF stimulates proliferation by activation of alpha(v)beta3 integrins. EMBO J 21: 1957–1966. 11953315
77. Jorissen RN, Walker F, Pouliot N, Garrett TP, Ward CW, et al. (2003) Epidermal growth factor receptor: mechanisms of activation and signalling. Exp Cell Res 284: 31–53. 12648464
78. Lei H, Velez G, Kazlauskas A (2011) Pathological signaling via platelet-derived growth factor receptor {alpha} involves chronic activation of Akt and suppression of p53. Mol Cell Biol 31: 1788–1799. doi: 10.1128/MCB.01321-10 21357737
79. Bentz GL, Jarquin-Pardo M, Chan G, Smith MS, Sinzger C, et al. (2006) Human cytomegalovirus (HCMV) infection of endothelial cells promotes naive monocyte extravasation and transfer of productive virus to enhance hematogenous dissemination of HCMV. J Virol 80: 11539–11555. 16987970
80. Smith MS, Bentz GL, Smith PM, Bivins ER, Yurochko AD (2004) HCMV activates PI(3)K in monocytes and promotes monocyte motility and transendothelial migration in a PI(3)K-dependent manner. J Leukoc Biol 76: 65–76. 15107461
81. Schubert K, Polte T, Bonisch U, Schader S, Holtappels R, et al. (2011) Thy-1 (CD90) regulates the extravasation of leukocytes during inflammation. Eur J Immunol 41: 645–656. doi: 10.1002/eji.201041117 21264853
82. Goodrum F, Jordan CT, Terhune SS, High K, Shenk T (2004) Differential outcomes of human cytomegalovirus infection in primitive hematopoietic cell subpopulations. Blood 104: 687–695. 15090458
83. Britt WJ (2010) Human cytomegalovirus: propagation, quantification, and storage. Curr Protoc Microbiol Chapter 14: Unit 14E 13.
84. Wang D, Shenk T (2005) Human cytomegalovirus virion protein complex required for epithelial and endothelial cell tropism. Proc Natl Acad Sci U S A 102: 18153–18158. 16319222
85. Hoover SE, Cohrs RJ, Rangel ZG, Gilden DH, Munson P, et al. (2006) Downregulation of varicella-zoster virus (VZV) immediate-early ORF62 transcription by VZV ORF63 correlates with virus replication in vitro and with latency. J Virol 80: 3459–3468. 16537613
86. Wang K, Kappel JD, Canders C, Davila WF, Sayre D, et al. (2012) A Herpes Simplex Virus 2 Glycoprotein D Mutant Generated by Bacterial Artificial Chromosome Mutagenesis Is Severely Impaired for Infecting Neuronal Cells and Infects Only Vero Cells Expressing Exogenous HVEM. J Virol 86: 12891–12902. doi: 10.1128/JVI.01055-12 22993162
87. Kondratowicz AS, Lennemann NJ, Sinn PL, Davey RA, Hunt CL, et al. (2011) T-cell immunoglobulin and mucin domain 1 (TIM-1) is a receptor for Zaire Ebolavirus and Lake Victoria Marburgvirus. Proc Natl Acad Sci U S A 108: 8426–8431. doi: 10.1073/pnas.1019030108 21536871
88. Krzyzaniak MA, Zumstein MT, Gerez JA, Picotti P, Helenius A (2013) Host cell entry of respiratory syncytial virus involves macropinocytosis followed by proteolytic activation of the F protein. PLoS Pathog 9: e1003309. doi: 10.1371/journal.ppat.1003309 23593008
89. Giri JG, Ahdieh M, Eisenman J, Shanebeck K, Grabstein K, et al. (1994) Utilization of the beta and gamma chains of the IL-2 receptor by the novel cytokine IL-15. EMBO J 13: 2822–2830. 8026467
Štítky
Hygiena a epidemiológia Infekčné lekárstvo LaboratóriumČlánok vyšiel v časopise
PLOS Pathogens
2015 Číslo 7
- Parazitičtí červi v terapii Crohnovy choroby a dalších zánětlivých autoimunitních onemocnění
- Očkování proti virové hemoragické horečce Ebola experimentální vakcínou rVSVDG-ZEBOV-GP
- Koronavirus hýbe světem: Víte jak se chránit a jak postupovat v případě podezření?
Najčítanejšie v tomto čísle
- Characterization of a Prefusion-Specific Antibody That Recognizes a Quaternary, Cleavage-Dependent Epitope on the RSV Fusion Glycoprotein
- N-acetylglucosamine Regulates Virulence Properties in Microbial Pathogens
- Activation of TLR2 and TLR6 by Dengue NS1 Protein and Its Implications in the Immunopathogenesis of Dengue Virus Infection
- RNA Virus Reassortment: An Evolutionary Mechanism for Host Jumps and Immune Evasion