Tag Archives: T-cell response

Light-based enhancement of vaccination in humans

  Motivation Vaccines should activate all branches of immunity, including T cells and antibody responses, for generating a strong immune response. For therapeutic cancer vaccines, it is especially important to induce strong cytotoxic T-cell responses, since cytotoxic T-cells are the most potent immune cells for killing cancer cells. While cytotoxic T-cells can often be induced  with viral vector and nucleic acid-based vaccines, peptide-based vaccines often induce only weak cytotoxic T-cell responses . When peptide antigens are taken up into antigen presenting cells, they are generally Continue reading →Customer case PCI Biotech is a biopharmaceutical company located in Norway. They are developing a novel light-based technology called photochemical internalization (PCI) that has potential to enhance delivery and efficacy of many types of therapies, including certain chemotherapies, peptide vaccines, and nucleic acid therapies. It can also decrease side effects due to improved spatiotemporal control of the treatment. The technology is currently in a pivotal clinical study for the treatment of inoperable bile duct cancer where PCI with gemcitabine is combined with standard gemcitabine/cisplatin chemotherapy. Continue reading →

Photochemical Internalization Enhanced Vaccination Is Safe, and Gives Promising Cellular Immune Responses to an HPV Peptide-Based Vaccine in a Phase I Clinical Study in Healthy Volunteers

Published in: Frontiers in Immunology Authors: Tone Otterhaug, Sylvia Janetzki, Marij J. P. Welters, Monika Håkerud, Anne Grete Nedberg, Victoria Tudor Edwards, Sanne Boekestijn, Nikki M. Loof, Pål Kristian Selbo, Hans Olivecrona, Sjoerd H. van der Burg, Anders Høgset    Published in: Frontiers in Immunology Authors: Tone Otterhaug, Sylvia Janetzki, Marij J. P. Welters, Monika Håkerud, Anne Grete Nedberg, Victoria Tudor Edwards, Sanne Boekestijn, Nikki M. Loof, Pål Kristian Selbo, Hans Olivecrona, Sjoerd H. van der Burg, Anders Høgset   Open-label phase 1 study to assess safety and local tolerance to PCI vaccination (fimaVACC). Peptide and protein-based vaccination coupled with PCI platform was safe in healthy volunteers (n=96) and significantly enhanced T-cell responses (over 10-fold compared to vaccination without PCI platform). The optimal and safe Continue reading →