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Belnap C, Divis T, Kingsley K, Howard KM. Differential Expression of MicroRNA MiR-145 and MiR-155 Downstream Targets in Oral Cancers Exhibiting Limited Chemotherapy Resistance. Int J Mol Sci 2024; 25:2167. [PMID: 38396844 PMCID: PMC10889714 DOI: 10.3390/ijms25042167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Revised: 02/07/2024] [Accepted: 02/08/2024] [Indexed: 02/25/2024] Open
Abstract
New evidence has suggested that non-coding microRNAs play a significant role in mediating and modulating chemotherapy resistance, particularly among oral cancers. One recent study found that the upregulation of miR-145 and the downregulation of miR-155 strongly correlated with a limited chemotherapy resistance to Cisplatin, 5-Fluorouracil, and Paclitaxel, although the mechanism(s) responsible for these observations remain unidentified. Using commercially available cell lines of oral squamous cell carcinoma, RNA was isolated, converted into cDNA, and subsequently screened for the expression of downstream targets of miR-145 and miR-155 using qPCR. These results demonstrated the upregulation of miR-21, miR-125, miR-133, miR-365, miR-720, and miR-1246, as well as the downregulation of miR-140, miR-152, miR-218, miR-221, and miR-224. This screening also confirmed the differential expression and regulation of mir-145 and miR-155 among the cell lines with limited chemotherapy resistance (SCC15). In addition, several downstream targets of these specific microRNAs were upregulated by all oral cancer cell lines, such as MBTD1 and FSCN1, or downregulated in all cell lines, such as CLCN3, FLI-1, MRTFB, DAB, SRGAP1, and ABHD17C. However, three miR-145 downstream targets were identified in the least chemotherapy-resistant cells, exhibiting the differential upregulation of KCNA4 and SRGAP2, as well as the downregulation of FAM135A, with this expression pattern not detected in any of the other oral cancer cell lines. These data strongly support that the differential regulation of these three downstream targets may be related to the chemosensitivity of this oral cancer cell line. The potential involvement of these targets must be further investigated to determine how and whether mechanisms of these cellular pathways may be involved in the observed lack of chemotherapy resistance. These data may be important to design targets or treatments to reduce chemotherapy resistance and improve patient treatment outcomes.
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Affiliation(s)
- Conner Belnap
- Department of Advanced Education in Orthodontic Dentistry, School of Dental Medicine, University of Nevada-Las Vegas, 1700 W. Charleston Boulevard, Las Vegas, NV 89106, USA;
| | - Tyler Divis
- Department of Clinical Sciences, School of Dental Medicine, University of Nevada-Las Vegas, 1700 W. Charleston Boulevard, Las Vegas, NV 89106, USA;
| | - Karl Kingsley
- Department of Biomedical Sciences, School of Dental Medicine, University of Nevada-Las Vegas, 1001 Shadow Lane, Las Vegas, NV 89106, USA;
| | - Katherine M. Howard
- Department of Biomedical Sciences, School of Dental Medicine, University of Nevada-Las Vegas, 1001 Shadow Lane, Las Vegas, NV 89106, USA;
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Evans S, Cobbley H, Davis K, Divis T, Eberhard N, Flor S, Harris EB, Gordon JB, Hyer M, Larson W, Suorsa AR, Sharma R, Sork C, Thompson DW, Wells L, Casjens SR, Grose JH. Complete Genome Sequences of Five Bacteriophages That Infect Enterobacteriales Hosts. Microbiol Resour Announc 2022; 11:e0122321. [PMID: 35343780 PMCID: PMC9022592 DOI: 10.1128/mra.01223-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2021] [Accepted: 03/13/2022] [Indexed: 11/25/2022] Open
Abstract
Full genome sequences of five bacteriophages that were isolated from raw sewage samples and infect Enterobacteriales hosts are presented. Brookers is a P22-like Proteus phage, OddieOddie is a 9g-like Escherichia coli phage, Diencephelon is a Kp3-like Klebsiella phage, and Rgz1 and Lilpapawes are classic T4-like and T7-like virulent Proteus phages, respectively.
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Affiliation(s)
- Seth Evans
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - Hunter Cobbley
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - Kye Davis
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - Tyler Divis
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - Nathaniel Eberhard
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - Samuel Flor
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - Evan B. Harris
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - J. Ben Gordon
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - Matthew Hyer
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - Weston Larson
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - Aurora R. Suorsa
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - Ruchira Sharma
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - Carson Sork
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - Daniel W. Thompson
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - Lauren Wells
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
| | - Sherwood R. Casjens
- School of Biological Sciences, University of Utah, Salt Lake City, Utah, USA
- Division of Microbiology and Immunology, Department of Pathology, University of Utah School of Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Julianne H. Grose
- Department of Microbiology and Molecular Biology, Brigham Young University, Provo, Utah, USA
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