Target intelligence / Profile preview

Neisseria meningitidis Group W135 Capsular Polysaccharide (W135 CPS)

Target
W135 CPS
Molecular classification
Polysaccharide, Capsular Polysaccharide
01

Overview

The *Neisseria meningitidis* group W135 capsular polysaccharide is a high-molecular-weight carbohydrate polymer that forms the outer capsule of *N. meningitidis* serogroup W135. This capsule is a critical virulence factor, enabling the bacterium to evade host immune responses. It consists of alternating units of N-acetylneuraminic acid (Neu5Ac) linked to galactose. Antibodies targeting this polysaccharide confer protection against infection and are the basis for conjugate vaccines.

Other names
Group W135 capsular polysaccharideNmW135 CPSW135 polysaccharideSerogroup W135 capsular polysaccharide
02

Mechanism of action

Antibodies targeting the W135 capsular polysaccharide promote complement-mediated killing and opsonization of *Neisseria meningitidis* serogroup W135. Conjugate vaccines induce T-cell dependent immune responses, leading to long-lasting immunity.

03

Biological functions

Immune evasionComplement resistanceInhibition of phagocytosisVirulence factor
04

Disease associations

Invasive meningococcal diseaseMeningitisSepticemia
05

Safety considerations

Vaccine-related adverse events (rare)Potential for reduced vaccine efficacy in certain populationsBreakthrough infections in vaccinated individuals
06

Interacting drugs

Menactra

3 more in the full profile.

07

Biomarkers

Antibody titers against W135 CPSPresence of W135 CPS in blood or cerebrospinal fluid

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