Inflammation

Inhibition of Mast Cell Mediators

Inflammation diseases

Syntaxin’s inflammation programme is focusing on the inhibition of mast cell mediators in disease areas such as allergic rhinitis (AR), asthma, rheumatoid arthritis and inflammatory bowel disease.

Syntaxin’s non-steroidal anti-inflammatory technology delivers multiple mast cell stabilisers with greater efficacy and longer duration of action in comparison to single mediator antagonists thus drastically improving symptom control.

Mast Cells

By selectively inhibiting stimulated mast cell secretion, our technology can couple specificity with breadth of efficacy. Receptor choice allows targeting of multiple mechanisms with a single molecule.

The current focus is to complete allergic rhinitis proof of concept to demonstrate efficacy in a disease where the mast cell is a precedented mechanism.

Disease

Mast Cell Function

Allergic rhinitis and allergic skin diseases AR patients have increased numbers of nasal mast cells during active disease

Mast cell mediators have been shown to play a role in the early and late responses

Efficacy of anti-histamines
Asthma (including severe asthma) Mast cells are increased in smooth muscle and epithelial layers

Number of mast cells correlates with AHR to methacholine

Mast cell mediators in asthmatic BAL

Efficacy of mast cell antagonists

Anti-IgE efficacy
Rheumatoid Arthritis Mast cells represent up to 5% of all cells in the RA synovium

Mast cells are a major source of TNF and other inflammatory mediators linked to disease

Mast cells shown to play a critical role in the development of inflammation in murine models of disease
Inflammatory Bowel Disease Effectors of the Brain-Gut axis

Translate stress signals into the release of pro-inflammatory mediators

Tryptase activation of PAR-2 receptors results in increased mucosal permeability