Abstract: A recombinant oncolytic virus with improved safety and anticancer effect and a use thereof are disclosed. The recombinant oncolytic virus is obtained by inserting an HSV-TK fragment-encoding gene into a TK gene region to delete TK of Vaccinia virus. The oncolytic virus expresses an HSV-TK fragment to phosphorylate GCV so that cancer cells infected with the oncolytic virus and their neighboring cancer cells can be killed. GCV is also involved in the suppression of viral proliferation and thus can control side effects caused by a virus even upon the administration of a high dose of the virus.

Abstract: A chimeric antigen receptor targeting an oncolytic virus-derived protein, an immune cell expressing the same, and uses thereof are disclosed. The chimeric antigen receptor-expressing immune cell can effectively target the protein A56 that is specifically expressed on the cancer cell surface, which enables targeted therapy for cancer cells that have survived even infection with an oncolytic virus, thereby providing effective anticancer therapy. The chimeric antigen receptor-expressing immune cell can have increased activation and proliferation capacity specifically for protein A56 and exhibit excellent cytotoxic effects, thereby providing effective anticancer therapy against protein A56-expressing cancer cells.

Abstract: A target protein for viral vector-based anticancer therapy, and a binding molecule or a fragment thereof which specifically binds thereto are disclosed. A conformational epitope of protein A56, and a binding molecule or a fragment thereof which specifically binds thereto are disclosed. The A56-binding molecule or a fragment thereof, which binds to a conformational epitope of A56 forms a specific structural bond with A56 and shows high affinity thereto. Administering a vaccinia virus-based oncolytic virus, A56 is expressed on the cancer cell surface in various carcinomas. The A56-binding molecule or a fragment thereof effectively targets A56 that is specifically expressed on the cancer cell surface, which enables targeted therapy for cancer cells that have survived even infection with an oncolytic virus, thereby providing effective anticancer therapy.

Abstract: A recombinant oncolytic virus with improved safety and anticancer effect and a use thereof are disclosed. The recombinant oncolytic virus is obtained by inserting an HSV-TK fragment-encoding gene into a TK gene region to delete TK of Vaccinia virus. The oncolytic virus expresses an HSV-TK fragment to phosphorylate GCV so that cancer cells infected with the oncolytic virus and their neighboring cancer cells can be killed. GCV is also involved in the suppression of viral proliferation and thus can control side effects caused by a virus even upon the administration of a high dose of the virus.

Abstract: A recombinant oncolytic virus with improved safety and anticancer effect and a use thereof are disclosed. The recombinant oncolytic virus is obtained by inserting an HSV-TK fragment-encoding gene into a TK gene region to delete TK of Vaccinia virus. The oncolytic virus expresses an HSV-TK fragment to phosphorylate GCV so that cancer cells infected with the oncolytic virus and their neighboring cancer cells can be killed. GCV is also involved in the suppression of viral proliferation and thus can control side effects caused by a virus even upon the administration of a high dose of the virus.

Abstract: A new use of hydroxyurea for preventing, alleviating, or treating systemic inflammatory response syndrome or sepsis is disclosed. Hydroxyurea can control the activity of neutrophils that are immune cells involved in inflammatory mechanisms, and thus can protect an individual from side effects or conditions caused by systemic inflammatory responses which can occur due to exposure to microorganisms such as bacteria or viruses. Thus, a pharmaceutical composition containing hydroxyurea as an active ingredient can prevent, alleviate, or treat systemic inflammatory response syndrome or sepsis in an individual and ultimately can remarkably increase the survival rate of the individual. The composition may be effective in preventing, alleviating, or treating neutrophilia which can occur when exposed to microorganisms such as bacteria or viruses, wherein the viruses include viruses for therapeutic purposes, such as oncolytic viruses as well as pathogenic viruses such as influenza virus or coronavirus.

Abstract: The present invention relates to a tumor-targeting protein or a fragment thereof, an antibody binding thereto and a use thereof. More specifically, the present invention relates to a vector containing a nucleic acid coding for the protein A56 or a fragment thereof, and a use thereof. In addition, the present invention relates to an antibody binding to the protein A56 or a fragment thereof, and a use thereof. The vector containing the nucleic acid coding for the protein A56, a fragment thereof or a mutant thereof of the present invention uses an oncolytic virus as the vector, and thus, when administered in an individual, specifically kills only cancer cells, primarily. In addition, cancer cells which have survived even after being infected with the oncolytic virus express the protein A56 on the cell surfaces thereof, and thus may be targeted for secondary anticancer therapy.

Abstract: An oncolytic virus with improved safety and anticancer effects and uses thereof are disclosed. The oncolytic virus contains a recombinant nucleic acid including a nucleotide sequence encoding an effector domain derived from herpes simplex virus thymidine kinase (HSV-TK). The oncolytic virus can express an HSV-TK fragment which contains an effector domain composed of a minimum amino acid sequence capable of phosphorylating GCV or ACV while having no thymidine kinase (TK) activity, or a variant thereof to phosphorylate GCV or ACV, thereby killing cancer cells infected with the oncolytic virus and even neighboring cancer cells.

Abstract: A recombinant oncolytic virus with improved safety and anticancer effect and a use thereof are disclosed. The recombinant oncolytic virus is obtained by inserting an HSV-TK fragment-encoding gene into a TK gene region to delete TK of Vaccinia virus. The oncolytic virus expresses an HSV-TK fragment to phosphorylate GCV so that cancer cells infected with the oncolytic virus and their neighboring cancer cells can be killed. GCV is also involved in the suppression of viral proliferation and thus can control side effects caused by a virus even upon the administration of a high dose of the virus.

Abstract: A pharmaceutical composition including an anticancer virus and hydroxyurea as effective components and its use for preventing or treating cancer are disclosed. A method for preventing or treating cancer includes administering an anticancer virus and hydroxyurea as effective components exhibits superior tumor suppression effect as compared to a conventional case where only an anticancer virus is administered; and can kill even the cancer cells that are resistant to anticancer viruses.