A significant impediment to the treatment of solid and nonsolid cancers is the decline of drug efficacy and/or occurrence of adverse effects. In recent years, there has been increasing interest in oncolytic viruses (OVs) as a method to treat cancer because of their specificity for cancerous tissue and reduced likelihood of adverse effects. The results of clinical trials suggest that OVs have an acceptable safety profile and are effective in treating certain types of cancer, despite the limited number of these organisms. However, further advances are needed to make oncolytic virotherapy more effective by increasing tumor permeation and improving virus delivery. Combining oncolytic virotherapy with conventional treatments, such as targeted inhibitory drugs (e.g., histone deacetylase inhibitors), could results in safer, more reliable, and more effective therapeutics.
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http://dx.doi.org/10.1016/j.drudis.2022.02.009 | DOI Listing |
Cancer Biol Med
January 2025
Houston Methodist Cancer Center/Weill Cornell Medicine, Houston, TX 77030, USA.
Oncolytic virotherapy (OVT) is a promising option for cancer treatment. OVT involves selective oncolytic virus (OV) replication within cancer cells, which triggers anti-tumor responses and immunostimulation. Despite promising potential, OVT faces critical challenges, including insufficient tumor-specific targeting, which results in limited tumor penetration and variability in therapeutic efficacy.
View Article and Find Full Text PDFFront Immunol
January 2025
Sino-British Research Centre for Molecular Oncology, National Centre for International Research in Cell and Gene Therapy, State Key Laboratory of Esophageal Cancer Prevention & Treatment, School of Basic Medical Sciences, Academy of Medical Sciences, Zhengzhou University, Zhengzhou, China.
Pancreatic cancer is one of the most aggressive cancers and poses significant challenges to current therapies because of its complex immunosuppressive tumor microenvironment (TME). Oncolytic viruses armed with immunoregulatory molecules are promising strategies to overcome limited efficacy and target inaccessible and metastatic tumors. In this study, we constructed a tumor-selective vaccinia virus (VV) with deletions of the TK and A49 genes (VVLΔTKΔA49, VVL-DD) using CRISPR-Cas9-based homologous recombination.
View Article and Find Full Text PDFVet World
November 2024
Department of Experimental Therapy, Iraqi Center for Cancer and Medical Genetics Research, Mustansiriyah University, Al-Qadisiyah, Baghdad 1001, Iraq.
Background And Aim: Malignant diseases are among the most common and deadly illnesses that are often spread due to lifestyle choices. These diseases are caused by unchecked cell growth, which can be curable if detected early. Cancer treatment is dependent on various internal and external factors.
View Article and Find Full Text PDFJ Hematol Oncol
January 2025
Department of Hematology and Medical Oncology, Winship Cancer Institute of Emory University, Atlanta, GA, USA.
Background: Reovirus (RV) is an oncolytic virus with natural tropism for cancer cells. We previously showed that RV administration in multiple myeloma (MM) patients was safe, but disease control associated with viral replication in the cancer cells was not observed. The combination with proteasome inhibitors (PIs) has shown to enhance RV therapeutic activity, but the mechanisms of action have not been fully elucidated.
View Article and Find Full Text PDFJ Immunother Cancer
January 2025
Department of Bone and Soft Tissue Tumor, Peking University Cancer Hospital. Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Beijing, China
Background: Intratumoral oncolytic herpes simplex virus 2-GM CSF (OH2) injection has shown safety and antitumor efficacy in patients with solid tumors. Here, we examined the safety and efficacy of OH2 as a single agent or in combination with HX008, an NMPA-approved PD-1 inhibitor, in locally advanced or metastatic sarcoma patients.
Methods: This multicenter, phase 1/2 trial enrolled patients with injectable sarcoma lesions, who had failed at least 1 or more lines of standard treatment.
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