Abstract: Compositions comprising, and methods of using, mesoporous hybrid siliceous nanoparticles comprising a TLR ligand or other immune stimulant(s), and an agent to induce immunogenic cell death.

Abstract: Disclosed are positively-charged, cytotoxic nanoparticle compositions comprising immune modulators (such as the toll-like receptor (TLR)-4 ligand, monophosphoryl lipid (MPL)-A), and Interleukin (IL)-12)), which exhibit enhanced uptake by mammalian cancer cells, and cause increased cancer cell death and/or an increased release of cancer antigens following direct injection to populations of cancer or tumor cells. Also disclosed are nanoparticle-vectored, immunomodulatory compositions that stimulate antigen presenting immune cells and T cells, and support the development of anti-cancer immunity in mammalian hosts. The disclosed cationic liposomes represent an important advance in the area of cancer immunotherapeutics.

Abstract: Disclosed are positively-charged, cytotoxic nanoparticle compositions comprising immune modulators (such as the toll-like receptor (TLR)-4 ligand, monophosphoryl lipid (MPL)-A), and Interleukin (IL)-12)), which exhibit enhanced uptake by mammalian cancer cells, and cause increased cancer cell death and/or an increased release of cancer antigens following direct injection to populations of cancer or tumor cells. Also disclosed are nanoparticle-vectored, immunomodulatory compositions that stimulate antigen presenting immune cells and T cells, and support the development of anti-cancer immunity in mammalian hosts. The disclosed cationic liposomes represent an important advance in the area of cancer immunotherapeutics.

Abstract: The present disclosure is directed to methods of producing lipid coated nanoparticles useful for biomedical applications, e.g., vaccines, adjuvants. The present disclosure is also directed in part to, e.g., multilamellar or unilamellar, protocell vaccines.

Abstract: Disclosed are positively-charged, cytotoxic nanoparticle compositions comprising immune modulators (such as the toll-like receptor (TLR)-4 ligand, monophosphoryl lipid (MPL)-A), and Interleukin (IL)-12)), which exhibit enhanced uptake by mammalian cancer cells, and cause increased cancer cell death and/or an increased release of cancer antigens following direct injection to populations of cancer or tumor cells. Also disclosed are nanoparticle-vectored, immunomodulatory compositions that stimulate antigen presenting immune cells and T cells, and support the development of anti-cancer immunity in mammalian hosts. The disclosed cationic liposomes represent an important advance in the area of cancer immunotherapeutics.

Abstract: Disclosed are mesoporous silicon multi-stage vehicles that comprise liposomal-based second-stage particles, as well as pharmaceutical compositions and formulations including such vectors for use in a variety of diagnostic and therapeutic indications. In particular embodiments, MSV comprising ligand decorated second-stage particles are provided for therapeutic methods including, for example, treatment of mammalian cancers, including those of the human breast.