摘要:
The subject invention relates to viruses that are able to replicate and thereby kill neoplastic cells with a deficiency in the IFN-mediated antiviral response, and their use in treating neoplastic disease including cancer and large tumors. RNA and DNA viruses are useful in this regard. The invention also relates to methods for the selection, design, purification and use of such viruses for cancer therapy.
摘要:
Disclosed herein are new defective Sindbis viral vectors made from wild type Ar-339 Sindbis virus, with differences in replicase and envelope proteins between JT vectors and consensus Sindbis virus sequences, and also between JT and Ar-339 vectors. Also disclosed are plasmids used for the production of the vectors, methods for producing the vectors, methods for treating mammals suffering from tumors and pharmaceutical formulations for use in the treatment methods.
摘要:
Disclosed herein are new defective Sindbis viral vectors made from wild type Ar-339 Sindbis virus, with differences in replicase and envelope proteins between JT vectors and consensus Sindbis virus sequences, and also between JT and Ar-339 vectors. Also disclosed are plasmids used for the production of the vectors, methods for producing the vectors, methods for treating mammals suffering from tumors and pharmaceutical formulations for use in the treatment methods.
摘要:
Disclosed herein are methods for treating a mammal harboring a solid tumor which expresses higher levels of High Affinity Laminin Receptors (LAMR) than normal cells of the same lineage comprising systematically administering to a mammal in need of such treatment a therapeutically effective amount of a Replication Competent (RC) Sindbis virus vector, wherein said vector encodes a suicide gene.
摘要:
Viral vectors are potential tools for eliminating the viability of eukaryotic cells in anti-cancer therapies since they can efficiently destroy the cancer cells and trigger an immune response against tumours. Typically viruses are not specific to cancer cells and all methods known in art aiming to the construction of cancer-specific viruses suffer from serious problems. The present invention presents a universal method to overcome these problems and is usable for any DNA virus replicating in nucleus or for any layered vector of RNA viruses. In this method the viral gene expression and/or replication will be blocked by the introduction of one or more aberrantly spliced introns into crucial gene expression units of the virus or vector. Lethal effect of these mutations is reverted in a controlled manner by the delivery of splice-switch oligonucleotide (s) correcting the introduced defects and restoring the biological functionality of the virus or vector, including cytolytic properties.
摘要:
Disclosed herein are methods for treating a mammal harboring a solid tumor which expresses higher levels of High Affinity Laminin Receptors (LAMR) than normal cells of the same lineage comprising systematically administering to a mammal in need of such treatment a therapeutically effective amount of a Replication Competent (RC) Sindbis virus vector, wherein said vector encodes a suicide gene.
摘要:
The present invention discloses a chimeric alphavirus comprising a Sindbis virus cDNA fragment, an Eastern equine encephalitis virus cDNA fragment, a Western equine encephalitis virus cDNA fragment or a combination thereof. The present also discloses the use of this chimeric alphavirus as vaccines and in serological and diagnostic assays.
摘要:
Provided are polynucleotides and viral vectors, particularly, Alphavirus vectors such as Sindbis viral vectors, which encode an immune checkpoint protein, or a ligand binding portion of the checkpoint protein, or an immune checkpoint protein or ligand binding portion thereof fused to one or more immunoglobulin (Ig) domains, e.g., an Ig hinge region and an Ig heavy chain constant domain. Methods of treating a mammalian subject having a cancer or tumor are provided, in which the viral vectors, e.g., a Sindbis virus vector, encoding the immune checkpoint protein, a ligand binding portion thereof, or a checkpoint protein fusion protein as described, are administered to the subject, resulting in an anti-cancer or anti-tumor immune response, significant reduction in tumor growth in the treated subject and increased survivability.
摘要:
The present disclosure relates to synthetic oncolytic viruses comprising a lipid nanoparticle comprising one or more types of lipid and a self-amplifying replicon RNA comprising a sequence that encodes an immunomodulatory molecule.