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Neisseria gonorrhoeae Outer Membrane Vesicle Antigen (NG OMV Antigen)

Target: NG OMV Antigen
Molecular classification: Bacterial outer membrane component, Antigen, Vaccine candidate

Overview

Neisseria gonorrhoeae outer membrane vesicle (OMV) antigens are components of small, spherical vesicles (~50 nm in diameter) naturally released from the outer membrane of N. gonorrhoeae. These OMVs contain a variety of surface-exposed proteins and other molecules derived from the bacterial outer membrane, including key antigens such as PorB, Opa proteins, PilQ, and NHBA. They play roles in pathogenesis by delivering virulence factors, modulating host immune responses, and evading innate immunity. Several surface-exposed antigens within N. gonorrhoeae OMVs are recognized by antibodies generated against related Neisseria species, supporting cross-protection between species. The presence of conserved surface-exposed antigens makes N. gonorrhoeae OMV components attractive vaccine targets.

Other names: N. gonorrhoeae OMVGonococcal OMVOMV vaccine candidate (N. gonorrhoeae)

Mechanism of action

N/A

Biological functions

Immune modulationVirulence factor deliveryAdhesionNutrient uptake

Disease associations

GonorrheaSexually Transmitted InfectionBacterial infection

Safety considerations

Potential for immunosuppression by certain components (e.g., Opa)Eliciting strain-specific immunity

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