Functional screening for anti-CMV biologics identifies a broadly neutralizing epitope of an essential envelope protein.
Functional screening for anti-CMV biologics identifies a broadly neutralizing epitope of an essential envelope protein.
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DOI:
10.1038/ncomms13627
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发表时间:
2016-12-14
影响因子:
16.6
通讯作者:
Tortorella, Domenico
中科院分区:
文献类型:
--
作者:
Gardner, Thomas J.;Stein, Kathryn R.;Duty, J. Andrew;Schwarz, Toni M.;Noriega, Vanessa M.;Kraus, Thomas;Moran, Thomas M.;Tortorella, Domenico
The prototypic β-herpesvirus human cytomegalovirus (CMV) establishes life-long persistence within its human host. The CMV envelope consists of various protein complexes that enable wide viral tropism. More specifically, the glycoprotein complex gH/gL/gO (gH-trimer) is required for infection of all cell types, while the gH/gL/UL128/130/131a (gH-pentamer) complex imparts specificity in infecting epithelial, endothelial and myeloid cells. Here we utilize state-of-the-art robotics and a high-throughput neutralization assay to screen and identify monoclonal antibodies (mAbs) targeting the gH glycoproteins that display broad-spectrum properties to inhibit virus infection and dissemination. Subsequent biochemical characterization reveals that the mAbs bind to gH-trimer and gH-pentamer complexes and identify the antibodies' epitope as an ‘antigenic hot spot' critical for virus entry. The mAbs inhibit CMV infection at a post-attachment step by interacting with a highly conserved central alpha helix-rich domain. The platform described here provides the framework for development of effective CMV biologics and vaccine design strategies. Human cytomegalovirus (CMV) poses a risk for immunosuppressed patients and newborns, with limited treatment options available. Here, Gardner et al. use a high-throughput approach and identify monoclonal antibodies that bind a highly conserved domain in the viral glycoprotein gH as potent inhibitors of CMV infection.
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DOI:
10.1016/s0197-2456(02)00268-4
发表时间:
2003-02-01
期刊:
CONTROLLED CLINICAL TRIALS
影响因子:
--
作者:
Gilpin, AMK;Holbrook, JT;Meinert, CL
通讯作者:
Meinert, CL
影响因子:
7.6
作者:
Gardner, Thomas J.;Cohen, Tobias;Redmann, Veronika;Lau, Zerlina;Felsenfeld, Dan;Tortorella, Domenico
通讯作者:
Tortorella, Domenico
影响因子:
5.4
作者:
Huber, MT;Compton, T
通讯作者:
Compton, T
影响因子:
--
作者:
Gardner, Thomas J.;Bolovan-Fritts, Cynthia;Tortorella, Domenico
通讯作者:
Tortorella, Domenico
影响因子:
4.3
作者:
Boeckh, M;Bowden, RA;Zaia, JA
通讯作者:
Zaia, JA