Broadly cross-reactive neutralizing antibodies against Human...

Drug – bio-affecting and body treating compositions – Immunoglobulin – antiserum – antibody – or antibody fragment,...

Reexamination Certificate

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C530S300000

Reexamination Certificate

active

11748992

ABSTRACT:
The present invention features antibodies and antibody fragments that specifically bind a CD4-inducible HIV gp120 epitope that is enhanced by binding a co-receptor for HIV, such as CCR5 or CXCR4, and pharmaceutical compositions comprising the antibodies or antibody fragments. The invention also features nucleic acids encoding the antibodies or antibody fragments, pharmaceutical compositions comprising the nucleic acids encoding the antibodies or antibody fragments, vectors comprising the nucleic acids, and cells comprising the vectors. The invention further features methods of identifying antibodies or antibody fragments with broadly neutralizing activity against HIV. The invention also features methods of inhibiting HIV entry into cells and methods of inhibiting replication of HIV in mammals, using the antibodies and nucleic acids of the invention.

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