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Oncolytic virotherapy reverses chemoresistance in osteosarcoma by suppressing MDR1 expression
ConclusionOur results suggest that MDR1 is an attractive therapeutic target for chemoresistant OS. Tumor-specific virotherapy is thus a promising strategy for reversing chemoresistance in OS patients via suppression of MDR1 expression.
Source: Cancer Chemotherapy and Pharmacology - June 10, 2021 Category: Cancer & Oncology Source Type: research

Synergistic Effect of NF- κB Signaling Pathway Inhibitor and Oncolytic 
Measles Virus Vaccine Strain against Lung Cancer and Underlying Mechanisms
Conclusion The combination of NF-κB signaling pathway inhibitor pS1145 and oncolytic measles virus vaccine strains can promote the apoptosis of human lung cancer cells A549 and H1299 and enhance their oncolytic effect.
 DOI: 10.3779/j.issn.1009-3419.2021.102.14
Source: Chinese Journal of Lung Cancer - April 20, 2021 Category: Cancer & Oncology Source Type: research

Evaluation of CERS2 Gene as a Potential Biomarker for Bladder Cancer.
This study demonstrates that CERS2 is differentially expressed in different types of bladder cancer cell lines and that the siRNA-mediated downregulation of the expression of CERS2 reduces the migratory potential of UMUC1 bladder cancer cells. However, there were no significant correlations between the expression levels of the CERS2 protein with bladder cancer grade/stage or between the IC50 values of cells treated with NDV and CERS2 expression. Although the utility of CERS2 expression may be limited, its potential as an antimigration cancer therapeutic should be further examined. PMID: 31636736 [PubMed - in process]
Source: Disease Markers - October 24, 2019 Category: Laboratory Medicine Tags: Dis Markers Source Type: research

The role of JNK phosphorylation as a molecular target to enhance adenovirus replication, oncolysis and cancer therapeutic efficacy.
This study has demonstrated for the first time that JNK is an intriguing molecular marker associated with enhanced Ad virotherapy efficacy, influencing future Ad vector design. PMID: 30067431 [PubMed - as supplied by publisher]
Source: Cancer Biology and Therapy - August 1, 2018 Category: Cancer & Oncology Authors: Wechman SL, Rao XM, Gomez-Gutierrez JG, Zhou HS, McMasters KM Tags: Cancer Biol Ther Source Type: research

Oncotropic H-1 parvovirus infection degrades HIF-1α protein in human pancreatic cancer cells independently of VHL and RACK1.
In this study, we found that infection with the oncolytic H-1 parvovirus decreased HIF-1α protein levels in pancreatic cancer cells under CoCl2 or hypoxia. The H-1 virus-induced decrease of HIF-1α was regulated by a proteasome-mediated pathway. Suppression of VHL, an E3 ligase and a critical regulator of HIF-1α, or enforced expression of UCP, an E2 ubiquitin-conjugating enzyme, failed to inhibit the H-1 virus-induced decrease of HIF-1α. Furthermore, siRNA-mediated suppression of RACK1, another regulator of HIF-1α, did not prevent H-1 viral infection from lowering HIF-1α protein levels. Although decrease of HIF-1α wa...
Source: International Journal of Oncology - March 9, 2015 Category: Cancer & Oncology Authors: Cho IR, Kaowinn S, Moon J, Soh J, Kang HY, Jung CR, Oh S, Song H, Koh SS, Chung YH Tags: Int J Oncol Source Type: research

Antitumor activities of an oncolytic adenovirus equipped with a double siRNA targeting Ki67 and hTERT in renal cancer cells.
In this study, we constructed novel oncolytic adenoviruses in which the Ki67 core promoter drove expression of the E1A gene. These adenoviruses were equipped with either a Ki67 small interfering RNA (siRNA), a human telomerase reverse transcriptase (hTERT) siRNA or a double siRNA targeting Ki67 and hTERT. We identified the antitumor activities of oncolytic adenoviruses in 3 renal cancer cell lines, human normal renal tube cell HK-2 and also in nude mice bearing KETR-3-xenografted tumors. Our results showed that these oncolytic adenoviruses, especially Ki67-ZXC2-double siRNA, could effectively induce silencing of the Ki67 a...
Source: Virus Research - January 21, 2014 Category: Virology Authors: Fang L, Cheng Q, Li W, Liu J, Li L, Xu K, Zheng J Tags: Virus Res Source Type: research

YB-1 dependent oncolytic adenovirus efficiently inhibits tumor growth of glioma cancer stem like cells
Conclusion: The results of this study supported YB-1 based virotherapy as an attractive therapeutic strategy for GBM treatment which will be exploited further in multimodal treatment concepts.
Source: Journal of Translational Medicine - September 18, 2013 Category: Research Authors: Klaus MantwillUlrike NaumannJanina SeznecVroni GirbingerHermann LagePawel SurowiakDagmar BeierMichel MittelbronnJürgen SchlegelPer Holm Source Type: research