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-Structure paper
| タイトル | Transgenic mouse-derived human monoclonal antibodies targeting EBV gp350 and gp42 provide basis for therapeutic development. |
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| ジャーナル・号・ページ | Cell Rep Med, Vol. 7, Issue 2, Page 102618, Year 2026 |
| 掲載日 | 2026年2月17日 |
著者 | Crystal B Chhan / Kevin Lang / Amelia R Davis / Yu-Hsin Wan / Nicholas T Aldridge / Gargi Kher / Samuel C Scharffenberger / Samantha R Hardy / Roman Iureniev / Natalia V Giltiay / Kristina R Edwards / Stefan Radtke / Hans-Peter Kiem / Marie Pancera / Andrew T McGuire / ![]() |
| PubMed 要旨 | Epstein-Barr virus (EBV) causes infectious mononucleosis and contributes to neurodegenerative disorders and malignancies, particularly in immune-compromised hosts. Transplant patients face high risk ...Epstein-Barr virus (EBV) causes infectious mononucleosis and contributes to neurodegenerative disorders and malignancies, particularly in immune-compromised hosts. Transplant patients face high risk of post-transplant lymphoproliferative disease, a life-threatening EBV-driven lymphoma. There are no EBV-specific vaccines or treatments; however, neutralizing antibodies against EBV glycoproteins may offer utility as therapeutic agents. EBV entry into B cells involves gp350, which binds complement receptors, and gp42, which engages HLA class II to trigger fusion. Most existing monoclonal antibodies (mAbs) against these antigens are non-human, limiting clinical use. Using a transgenic mouse model, we generate two gp350 and eight gp42 genetically human neutralizing mAbs that block receptor binding. Structural analyses reveal extended sites of vulnerability relevant to vaccine development. Delivery of a gp42 mAb protects humanized mice from EBV challenge, while a gp350 mAb provides partial protection. These mAbs highlight the utility of transgenic mice to produce therapeutic mAbs for preventing EBV-driven disease. |
リンク | Cell Rep Med / PubMed:41707657 / PubMed Central |
| 手法 | EM (単粒子) / X線回折 |
| 解像度 | 3.93 - 16.16 Å |
| 構造データ | ![]() EMDB-71585: Negative stain EM map of EBV glycoprotein gH/gL in complex with glycoprotein gp42 and FAB ATX-42-1.1 open conformation ![]() EMDB-71586: Negative stain EM map of EBV glycoprotein gH/gL in complex with glycoprotein gp42 and FAB ATX-42-2 Open conformation ![]() EMDB-71587: Negative stain EM map of EBV glycoprotein gH/gL in complex with glycoprotein gp42 and FAB ATX-42-1.1 partially open conformation ![]() EMDB-71588: Negative stain EM map of EBV glycoprotein gH/gL in complex with glycoprotein gp42 and FAB ATX-42-2 closed conformation ![]() EMDB-71589: Negative stain EM map of EBV glycoprotein gH/gL in complex with glycoprotein gp42 and HLA-DR1 Beta chain ![]() EMDB-71590: Negative Stain EM map of EBV glycoprotein gp350 in complex with ATX-350-1 FAB and 72A1 FAB ![]() EMDB-71592: Negative Stain EM map of EBV glycoprotein gp350 in complex with ATX-350-2 FAB ![]() EMDB-71593: Negative Stain EM map of EBV glycoprotein gp350 in complex with ATX-350-1 FAB ![]() EMDB-71594: Negative Stain EM map of EBV glycoprotein gp350 in complex with 72A1 FAB ![]() PDB-9pf9: |
| 化合物 | ![]() ChemComp-NAG: ![]() ChemComp-HOH: |
| 由来 |
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キーワード | IMMUNE SYSTEM / Viral protein / Complex / Antibody / EBV |
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human gammaherpesvirus 4 (ヘルペスウイルス)
Homo sapiens (ヒト)
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