Researchers from the Wistar Institute and Inovio Pharmaceuticals have used molecular technology to develop a DNA vaccine that increases the immune response to important target cancer antigens, thereby using the body's natural defense system to improve cancer immunotherapy. The study, entitled DNA Vaccines Developed for Better Cancer Immunotherapy, was published in the new issue of Molecular therapy, which also publishes other studies on recombinant horse proteins.

"DNA vaccines with altered DNA sequences will help to disrupt the host's immune tolerance," said Dr. David B. Weiner, executive vice president and director of the vaccine center (Wistar Institute). "This is an important step in the development of cancer treatment." The authors of this study further pointed out that the immune response provides a unique tool for the treatment of different types of cancer patients. The vaccine can be combined with other immunological methods such as checkpoint inhibitors to increase immunotherapy against certain cancers.

DNA vaccines developed by the research team of the Weiner Institute are optimized for DNA sequences synthesized with WT1, which contain DNA sequences that are highly homologous to native sequences and newly-altered DNA sequences. It is different from natural WT1 to make it be recognized by the host's immune system.

New vaccines designed by these scientists induce WT1-specific T-cell responses as well as antibody production, but do not cause side effects in both mice and non-primates. The vaccine was found to be superior to other available conventional vaccines because they were able to break the immune tolerance and to lead to long-term immune responses. There is treatment stimulation in anti-tumor response.

The multiple benefits associated with DNA vaccines make it ideal for patients with different types of cancer. We hope that more different types of DNA vaccines in the future can be better combined with immunotherapy to improve the efficiency of anti-tumor. Flarebio provides recombinant proteins of good quality like recombinant PIGR at reasonable prices.