Focal accumulation of aromaticity at the CDRH3 loop mitigates 4E10 polyreactivity without altering its HIV neutralization profile.
Focal accumulation of aromaticity at the CDRH3 loop mitigates 4E10 polyreactivity without altering its HIV neutralization profile.
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在CDRH3环上的芳香族性局灶性积累可减轻4E10的多反应性,而不会改变其HIV中和谱。
DOI:
10.1016/j.isci.2021.102987
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发表时间:
2021-09-24
期刊:
影响因子:
5.8
通讯作者:
Nieva JL
中科院分区:
文献类型:
--
作者:
Rujas E;Leaman DP;Insausti S;Carravilla P;García-Porras M;Largo E;Morillo I;Sánchez-Eugenia R;Zhang L;Cui H;Iloro I;Elortza F;Julien JP;Eggeling C;Zwick MB;Caaveiro JMM;Nieva JL
Broadly neutralizing antibodies (bnAbs) against HIV-1 are frequently associated with the presence of autoreactivity/polyreactivity, a property that can limit their use as therapeutic agents. The bnAb 4E10, targeting the conserved Membrane proximal external region (MPER) of HIV-1, displays almost pan-neutralizing activity across globally circulating HIV-1 strains but exhibits nonspecific off-target interactions with lipid membranes. The hydrophobic apex of the third complementarity-determining region of the heavy chain (CDRH3) loop, which is essential for viral neutralization, critically contributes to this detrimental effect. Here, we have replaced the aromatic/hydrophobic residues from the apex of the CDRH3 of 4E10 with a single aromatic molecule through chemical modification to generate a variant that preserves the neutralization potency and breadth of 4E10 but with reduced autoreactivity. Collectively, our study suggests that the localized accumulation of aromaticity by chemical modification provides a pathway to ameliorate the adverse effects triggered by the CDRH3 of anti-HIV-1 MPER bnAbs. Aromatic grafting is employed to improve functionality of the HIV antibody 4E10 Engineering the CDRH3 loop slashes its polyreactivity profile but also its potency Site-specific chemical modification rescues the activity of the engineered antibody Collectively, this procedure mitigates the polyreactivity of an MPER antibody Immunology; Virology
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DOI:
10.1107/s0907444905036693
发表时间:
2006-01-01
影响因子:
2.2
作者:
Evans, P
通讯作者:
Evans, P
影响因子:
64.8
作者:
Huang J;Ofek G;Laub L;Louder MK;Doria-Rose NA;Longo NS;Imamichi H;Bailer RT;Chakrabarti B;Sharma SK;Alam SM;Wang T;Yang Y;Zhang B;Migueles SA;Wyatt R;Haynes BF;Kwong PD;Mascola JR;Connors M
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Connors M
DOI:
10.1074/jbc.m116.734038
发表时间:
2016-08-12
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
Galiani S;Waithe D;Reglinski K;Cruz-Zaragoza LD;Garcia E;Clausen MP;Schliebs W;Erdmann R;Eggeling C
通讯作者:
Eggeling C
影响因子:
56.9
作者:
Haynes, BF;Fleming, J;Alam, SM
通讯作者:
Alam, SM
影响因子:
5.4
作者:
Hessell, Ann J.;Rakasz, Eva G.;Burton, Dennis R.
通讯作者:
Burton, Dennis R.