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Leung KL, Verma D, Azam YJ, Bakker E. The use of multi-omics data and approaches in breast cancer immunotherapy: a review. Future Oncol 2020; 16:2101-2119. [PMID: 32857605 DOI: 10.2217/fon-2020-0143] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Breast cancer is projected to be the most common cancer in women in 2020 in the USA. Despite high remission rates treatment side effects remain an issue, hence the interest in novel approaches such as immunotherapies which aim to utilize patients' immune systems to target cancer cells. This review summarizes the basics of breast cancer including staging and treatment options, followed by a discussion on immunotherapy, including immune checkpoint blockade. After this, examples of the role of omics-type data and computational biology/bioinformatics in breast cancer are explored. Ultimately, there are several promising areas to investigate such as the prediction of neoantigens and the use of multi-omics data to direct research, with noted appropriate in clinical trial design in terms of end points.
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Affiliation(s)
- Ka Lun Leung
- School of Medicine, The University of Central Lancashire, Preston, UK
| | - Devika Verma
- School of Medicine, The University of Central Lancashire, Preston, UK
| | | | - Emyr Bakker
- School of Medicine, The University of Central Lancashire, Preston, UK
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Oncolytic Adenoviruses: Strategies for Improved Targeting and Specificity. Cancers (Basel) 2020; 12:cancers12061504. [PMID: 32526919 PMCID: PMC7352392 DOI: 10.3390/cancers12061504] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 05/29/2020] [Accepted: 06/05/2020] [Indexed: 12/12/2022] Open
Abstract
Cancer is a major health problem. Most of the treatments exhibit systemic toxicity, as they are not targeted or specific to cancerous cells and tumors. Adenoviruses are very promising gene delivery vectors and have immense potential to deliver targeted therapy. Here, we review a wide range of strategies that have been tried, tested, and demonstrated to enhance the specificity of oncolytic viruses towards specific cancer cells. A combination of these strategies and other conventional therapies may be more effective than any of those strategies alone.
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Kamalpour R, Shayestehpour M, Shafiei-Jandaghi NZ, Yavarian J, Naseri M, Azad TM. The prevalence and genotype distribution of adenovirus respiratory infection among Iranian Hajj pilgrims in 2015. Future Virol 2019. [DOI: 10.2217/fvl-2019-0100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aim: Respiratory viruses are the most common cause of hospitalization of pilgrims during Hajj. This study aimed to detect adenovirus genotypes among Iranian pilgrims with acute respiratory tract infection in Hajj season of 2015. Materials & methods: In this cross-sectional study, throat swab samples of 338 Iranian pilgrims with flu-like symptoms were screened for adenovirus by polymerase chain reaction, and virus genotypes were determined using sequencing method. Results: Seventy-seven cases were positive for adenovirus (22.78%). The adenovirus type 6 was the most frequently detected virus followed by type 5, 1, 2 and 57. Conclusion: The prevalence of adenovirus respiratory infection among Iranian pilgrims is considerable. Preparation and administration of an effective adenovirus vaccine is recommended.
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Affiliation(s)
- Reza Kamalpour
- Department of Virology, School of Public Health, Tehran University of Medical Sciences,Tehran, 14716 13151, Iran
| | - Mohammad Shayestehpour
- Department of Microbiology & Immunology, Faculty of Medicine, Kashan University of Medical Sciences, Kashan, Isfahan, Iran
- Autoimmune Diseases Research Center, Kashan University of Medical Sciences, Kashan, Isfahan, Iran
| | | | - Jila Yavarian
- Department of Virology, School of Public Health, Tehran University of Medical Sciences,Tehran, 14716 13151, Iran
| | - Maryam Naseri
- Department of Virology, School of Public Health, Tehran University of Medical Sciences,Tehran, 14716 13151, Iran
| | - Talat Mokhtari Azad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences,Tehran, 14716 13151, Iran
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Meysami P, Rezaei F, Marashi SM, Amiri MM, Bakker E, Mokhtari-Azad T. Antitumor effects of a recombinant baculovirus displaying anti-HER2 scFv expressing Apoptin in HER2 positive SK-BR-3 breast cancer cells. Future Virol 2019. [DOI: 10.2217/fvl-2018-0187] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Aim: Since HER2 targeted therapies have shown clinical benefit in breast cancer, in the present study recombinant baculovirus (BV) displaying anti-HER2 single-chain variable domain fragment (scFv) expressing Apoptin was generated. Methods: The binding specificity and surface display of anti-HER2 scFv were evaluated using enzyme-linked immunosorbent assay (ELISA) and electron microscopy, respectively. The targeting properties and cytotoxic effect on breast cancer cells determined by fluorescence microscopy and MTT assays. Results: The results demonstrated that recombinant BV could specifically bind to HER2-overexpressing SK-BR-3 cells but not to the HER2 negative MCF-7 cells and reduced the viability of SK-BR-3 cells by expressing Apoptin. Conclusion: These results suggest that the antitumor effect of Apoptin in combination with HER2 targeting of this recombinant BV makes it a promising vector in targeted cancer therapy.
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Affiliation(s)
- Parisa Meysami
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran 1471613151, Iran
| | - Farhad Rezaei
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran 1471613151, Iran
| | - Sayed Mahdi Marashi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran 1471613151, Iran
| | - Mohammad Mehdi Amiri
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran 1471613151, Iran
| | - Emyr Bakker
- School of Medicine, University of Central Lancashire, Preston, UK
| | - Talat Mokhtari-Azad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran 1471613151, Iran
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Shayestehpour M, Moghim S, Salimi V, Jalilvand S, Yavarian J, Romani B, Mokhtari-Azad T. Targeting human breast cancer cells by an oncolytic adenovirus using microRNA-targeting strategy. Virus Res 2017; 240:207-214. [PMID: 28867494 DOI: 10.1016/j.virusres.2017.08.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 08/22/2017] [Accepted: 08/30/2017] [Indexed: 11/28/2022]
Abstract
MicroRNA-targeting strategy is a promising approach that enables oncolytic viruses to replicate in tumor cells but not in normal cells. In this study, we targeted adenoviral replication toward breast cancer cells by inserting ten complementary binding sites for miR-145-5p downstream of E1A gene. In addition, we evaluated the effect of increasing miR-145 binding sites on inhibition of virus replication. Ad5-control and adenoviruses carrying five or ten copies of miR145-5p target sites (Ad5-5miR145T, Ad5-10miR145T) were generated and inoculated into MDA-MB-453, BT-20, MCF-7 breast cancer cell lines and human mammary epithelial cells (HMEpC). Titer of Ad5-10miR145T in HMEpC was significantly lower than Ad5-control titer. Difference between the titer of these two viruses at 12, 24, 36, and 48h after infection was 1.25, 2.96, 3.06, and 3.77 log TCID50. No significant difference was observed between the titer of both adenoviruses in MDA-MB-453, BT-20 and MCF-7 cells. The infectious titer of adenovirus containing 10 miR-145 binding sites in HMEpC cells at 24, 36, and 48h post-infection was 1.7, 2.08, and 4-fold, respectively, lower than the titer of adenovirus carrying 5 miR-145 targets. Our results suggest that miR-145-targeting strategy provides selectivity for adenovirus replication in breast cancer cells. Increasing the number of miRNA binding sites within the adenoviral genome confers more selectivity for viral replication in cancer cells.
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Affiliation(s)
- Mohammad Shayestehpour
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 1471613151, Iran
| | - Sharareh Moghim
- Department of Microbiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, 8174673461, Iran
| | - Vahid Salimi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 1471613151, Iran
| | - Somayeh Jalilvand
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 1471613151, Iran
| | - Jila Yavarian
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 1471613151, Iran
| | - Bizhan Romani
- Department of Biochemistry, University of Alberta, Edmonton, Alberta, T6G 2E1, Canada; Cellular & Molecular Research Center (CMRC), Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences (AJUMS), Ahvaz, 6135715794, Iran
| | - Talat Mokhtari-Azad
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, 1471613151, Iran.
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