Targeted contrast agent for angiogenesis molecular imaging. P04000 targets ανβ3 integrin over-expressed on the neo-vessels.Nano-emulsion containing iron oxide particles, designed for T2*w MR sequences
Main Applications
Evaluation of angiogenesis status, evaluation of anti-tumoral treatment follow up based on ανβ3-expression
Molecular characteristics
– Hydrodynamic size: diameter is 180 nm
– Fe content: ~106 Fe atoms per particle
– Integrin targeting: 3 500 RGD per particles
– Recommended dose: 200 μmolFe/kg = 2.5 μL/g
Example: for a 30g body weight mouse, injection volume is 75 μL
– Recommended imaging time: up to 1h post injection (unbound contrast agent cleared from the blood)
– Contrast mechanism: susceptibility effect
– Histology: Perl’s staining
– In vitro quantification techniques: P04000 is a Fe-based contrast agent. Thus, it is necessary to take into account the endogenous iron content for quantification in biological media by ICP-AES or ICP-MS. Another way for USPIO quantification is relaxometry, which is poorly sensitive to endogenous iron content.