Type IV pili binding to CD147/Basigin triggers tyrosine phosphorylation through c-Src and focal adhesion kinase, and EGFR is activated (Slanina et al., 2010, Slanina et al., 2012, Slanina et al., 2014), and acid sphingomyelinase increases ceramide levels on the plasma membrane, forming platforms for the recruitment of host receptors (Simonis et al., 2014
Cullin, N., Azevedo Antunes, C., Straussman, R., Stein-Thoeringer, C
Staresinic M et al
Relationships among pancreatic beta cell function, the Nrf2 pathway, and IRS2: a cross-sectional study
To determine if the same pattern of biomarkers of abnormal fatty-acid metabolism are present in children with ASD, the laboratory results from a large cohort of children with ASD ( n =213) who underwent screening for metabolic disorders, including mitochondrial and fatty-acid oxidation disorders, in a medically based autism clinic were reviewed

Use Cases: When Each Route Fits Topical GHK-Cu -- Localized Skin and Hair Goals The evidence supports topical use for: Facial aging and wrinkle reduction -- the most clinically validated use case, with multiple controlled studies Post-procedure recovery -- documented benefits after CO2 laser resurfacing Hair and scalp health -- community reports describe topical application to the scalp, though controlled hair-specific studies are limited General skin quality -- increased density, thickness, elasticity, and collagen documented in clinical studies Common audience: users primarily targeting cosmetic skin outcomes with the strongest available evidence base and the simplest application method