RE: SNAPvax info in the last week7 Nov 2022 12:19
https://www.avideatechnologies.com/snapvax/in-vivo/
From reading this, it sounds like snapvac helps with delivery to APCs.
"Small particle sizes for optimal lymph node APC uptake
Enhanced immune responses with SNAPvax are, in part, driven by improved pharmacokinetics and antigen presenting cell (APC) uptake. SNAPvax’s small size (20 nm, diameter) enables passive trafficking to lymph nodes to access key populations of APCs, particularly dendritic cells (DCs), that promote T cell immunity."
"Modular surface properties enable targeting of specific APC populations
SNAPvax enables a plug-and-play approach to evaluating how different characteristics, such as surface properties, impact uptake by different APC populations. Such studies have identified optimal surface properties for targeting APCs by different routes of vaccination."
Plus, when entry to the APC is acheived, it has other uses:
"Codelivered immunomodulator programs the type of immune response
The modularity of SNAPvax also allows for optimization of the codelivered immunomodulator to fine tune the immune response. Both SNAPvax cancer vaccine (CV) and SNAPvax tolerance vaccine (TV) have been optimized for the immunomodulator class, potency and number needed for the therapeutic application."
"Linkers optimized for efficient antigen processing and presentation
Antigens must be processed and presented on the surface of APCs within the context of MHC molecules to enable priming and/or expansion of T cells. The amphiphilic peptides underlying SNAPvax include degradable linkers that are recognized by proteases in APCs, thereby enabling rapid antigen processing for efficient presentation to T cells."
It definitely looks like it is replacing Amplivant.