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Pevonedistat sensitizes cancer cells to oncolytic VSVd51 virotherapy

ABSTRACT: To investigate the ability for pevonedistat to sensitize renal 786-0 carcinoma cells to VSVd51 oncolyic virotherapy, we treated cells with monotherapies or combination and sequencinced the transcriptome for antiviral interferon impact

ORGANISM(S): Homo sapiens

PROVIDER: GSE206428 | GEO | 2023/09/28

REPOSITORIES: GEO

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Itaconate enhances oncolytic virotherapy via multitarget inhibition of antiviral and inflammatory pathways

Project description:4 octyl itaconate (4-OI) is a known anti-inflammatory chemical that activates Nrf2 signaling. Here, we are exploring the capacities of 4-OI to promote the spread of oncolytic Vesicular Stomatitis Virus (VSVd51M) in pLenti control kidney adenocarcinoma 786-O cell line and in Nrf2 knock out 786-O.

2023-06-15 | GSE232509 | GEO

Subclone of resistant CT26 murine tumor shows high sensitivity to VA7 virotherapy: A novel system to study innate immunity and antigen dominance in oncolytic immuno-virotherapy

Project description:Recently, attenuated Semliki Forest virus vector VA7 completely eliminated type I interferon (IFN) unresponsive human U87 glioma xenografts while IFN responsive mouse GL261 and CT-2A gliomas proved refractory to the oncolytic virotherapy. Here we describe in two clones of a well established Balb/c mouse tumor cell line, CT26 murine colon carcinoma, diametrically opposed IFN responsiveness and sensitivity to oncolytic virus. Both CT26WT and CT26LacZ clones secreted biologically active type I IFN in vitro upon infection but virus replication was self-limiting only in CT26WT cells. Total transcriptome sequencing (RNA-Seq) and western blotting experiments revealed that in sharp contrast to CT26LacZ cells, CT26WT cells had strong constitutive expression of 56 different genes associated with pattern recognition and type I interferon signaling pathways, spanning two reported anti-RNA virus gene signatures and22 genes that have been reported to have direct anti-Alphaviral activity. Correspondingly, only CT26LacZ tumors were infectable in vivo, resulting in rapid central necrosis of the tumors by 96 hours post infection and complete tumor eradication both in immunocompetent and in SCID mice. CT26LacZ tumor eradication by oncolysis induced 100% protective immunity against homologous CT26LacZ challenge but only 50% protection against heterologous CT26WT challenge, indicating LacZ immune dominance over shared antigens. We believe the two clone CT26 system described herein constitutes a challenging yet realistic model for clonally and immunologically heterogeneous cancer where a strong therapy efficacy bias toward sensitive tumor subpopulations might falsely predict therapeutic success on a broad patient scale highlighting the necessity of successful pre-screening for responsive tumors. RNA-Seq in CT26 tumor cell line

2014-09-05 | E-GEOD-53001 | biostudies-arrayexpress

Neo-Adjuvant Oncolytic Virotherapy Prior to Surgery Sensitizes Triple-Negative Breast Cancer to Immune Checkpoint Therapy

Project description:Neo-Adjuvant Oncolytic Virotherapy Prior to Surgery Sensitizes Triple-Negative Breast Cancer to Immune Checkpoint Therapy

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Single-cell RNA sequencing reveals a strong connection between Gadd45g upregulation and oncolytic HSV infection in tumor tissue

Project description:The oncolytic effect of virotherapy derives from the intrinsic capability of the applied virus in selectively infecting and killing tumor cells. Although oncolytic viruses of various constructions have been shown to efficiently infect and kill tumor cells in vitro, the efficiency of these viruses to exert the same effect on tumor cells within tumor tissues in vivo has not been extensively investigated. Here we report our studies using single-cell RNA sequencing to comprehensively analyze the gene expression profile of tumor tissues following herpes simplex virus 2-based oncolytic virotherapy. Our data revealed the extent and cell types within the tumor microenvironment that could be infected by the virus. Moreover, we observed changes in the expression of cellular genes, including antiviral genes, in response to viral infection. One notable gene found to be upregulated significantly in oncolytic virus-infected tumor cells was Gadd45g, which is desirable for optimal virus replication. These results not only help reveal the precise infection status of the oncolytic virus in vivo, but also provide insight that may lead to the development of new strategies to further enhance the therapeutic efficacy of oncolytic virotherapy.

2021-10-31 | GSE186753 | GEO

Oncolytic virotherapy for ovarian cancer.

Project description: Not available

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Oncolytic virotherapy for hematological malignancies.

Project description: Not available

| S-EPMC3265224 | biostudies-literature

Oncolytic virotherapy for pancreatic cancer.

Project description: Not available

| S-EPMC3230120 | biostudies-literature

Oncolytic Virotherapy in Glioma Tumors.

Project description: Not available

| S-EPMC7589679 | biostudies-literature

Neo-Adjuvant Oncolytic Virotherapy Prior to Surgery Sensitizes Triple-Negative Breast Cancer to Immune Checkpoint Therapy

Project description:Triple-negative breast cancer (TNBC) is an aggressive disease for which treatment options are limited and associated with severe toxicities. In this experiment we evaluated the response of 2 murine TNBC models to oncolytic Maraba virus infection.

2018-10-01 | GSE104737 | GEO

Subclone of resistant CT26 murine tumor shows high sensitivity to VA7 virotherapy: A novel system to study innate immunity and antigen dominance in oncolytic immuno-virotherapy

2014-09-05 | GSE53001 | GEO

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