Shirey KA, et al. Novel role of gastric releasing peptide-mediated signaling in the host response to influenza infection. Mucosal Immunol. 2018 Oct 16.
Gastrin-releasing peptide (GRP) is an evolutionarily well-conserved neuropeptide that was originally recognized for its ability to mediate gastric acid secretion in the gut. More recently, however, GRP has been implicated in pulmonary lung inflammatory diseases including bronchopulmonary dysplasia, chronic obstructive pulmonary disease, emphysema, and others. Antagonizing GRP or its receptor mitigated lethality associated with the onset of viral pneumonia in a well-characterized mouse model of influenza. In mice treated therapeutically with the small-molecule GRP inhibitor, NSC77427, increased survival was accompanied by decreased numbers of GRP-producing pulmonary neuroendocrine cells, improved lung histopathology, and suppressed cytokine gene expression. In addition, in vitro studies in macrophages indicate that GRP synergizes with the prototype TLR4 agonist, lipopolysaccharide, to induce cytokine gene expression. Thus, these findings reveal that GRP is a previously unidentified mediator of influenza-induced inflammatory disease that is a potentially novel target for therapeutic intervention.
See Also:
Latest articles in those days:
- Nucleic acid detection and genomic sequence analysis of one H5N1 avian influenza virus from wide birds around Qinghai Lake 10 hours ago
- An aggregated dataset of serial morbidity and titer measurements from influenza A virus-infected ferrets 14 hours ago
- Structures of H5N1 influenza polymerase with ANP32B reveal mechanisms of genome replication and host adaptation 3 days ago
- Risk assessment of a highly pathogenic H5N1 influenza virus from mink 3 days ago
- Detection of clade 2.3.4.4b highly pathogenic H5N1 influenza virus in New York City 3 days ago
[Go Top] [Close Window]