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Mohammed S, Shamseddine AA, Newcomb B, Chavez RS, Panzner TD, Lee AH, Canals D, Okeoma CM, Clarke CJ, Hannun YA. Sublethal doxorubicin promotes migration and invasion of breast cancer cells: role of Src Family non-receptor tyrosine kinases. Breast Cancer Res 2021; 23:76. [PMID: 34315513 PMCID: PMC8317414 DOI: 10.1186/s13058-021-01452-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Accepted: 07/01/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Doxorubicin (Dox) is a widely used chemotherapy, but its effectiveness is limited by dose-dependent side effects. Although lower Dox doses reduce this risk, studies have reported higher recurrence of local disease with no improvement in survival rate in patients receiving low doses of Dox. To effectively mitigate this, a better understanding of the adverse effects of suboptimal Dox doses is needed. METHODS Effects of sublethal dose of Dox on phenotypic changes were assessed with light and confocal microscopy. Migratory and invasive behavior were assessed by wound healing and transwell migration assays. MTT and LDH release assays were used to analyze cell growth and cytotoxicity. Flow cytometry was employed to detect cell surface markers of cancer stem cell population. Expression and activity of matrix metalloproteinases were probed with qRT-PCR and zymogen assay. To identify pathways affected by sublethal dose of Dox, exploratory RNAseq was performed and results were verified by qRT-PCR in multiple cell lines (MCF7, ZR75-1 and U-2OS). Regulation of Src Family kinases (SFK) by key players in DNA damage response was assessed by siRNA knockdown along with western blot and qRT-PCR. Dasatinib and siRNA for Fyn and Yes was employed to inhibit SFKs and verify their role in increased migration and invasion in MCF7 cells treated with sublethal doses of Dox. RESULTS The results show that sublethal Dox treatment leads to increased migration and invasion in otherwise non-invasive MCF7 breast cancer cells. Mechanistically, these effects were independent of the epithelial mesenchymal transition, were not due to increased cancer stem cell population, and were not observed with other chemotherapies. Instead, sublethal Dox induces expression of multiple SFK-including Fyn, Yes, and Src-partly in a p53 and ATR-dependent manner. These effects were validated in multiple cell lines. Functionally, inhibiting SFKs with Dasatinib and specific downregulation of Fyn suppressed Dox-induced migration and invasion of MCF7 cells. CONCLUSIONS Overall, this study demonstrates that sublethal doses of Dox activate a pro-invasive, pro-migration program in cancer cells. Furthermore, by identifying SFKs as key mediators of these effects, our results define a potential therapeutic strategy to mitigate local invasion through co-treatment with Dasatinib.
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Affiliation(s)
- Samia Mohammed
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, 11794- 8430, USA.,Stony Brook University Cancer Center, MART Level 9, Stony Brook University, Stony Brook, NY, 11794-8430, USA.,Department of Medicine, Stony Brook University, Health Science Center, Hospital Pavilion Level 5, Stony Brook, NY, 11794-8430, USA
| | - Achraf A Shamseddine
- Department of Medicine, Stony Brook University, Health Science Center, Hospital Pavilion Level 5, Stony Brook, NY, 11794-8430, USA
| | - Benjamin Newcomb
- Department of Medicine, Stony Brook University, Health Science Center, Hospital Pavilion Level 5, Stony Brook, NY, 11794-8430, USA
| | - Ronald S Chavez
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, 11794- 8430, USA
| | - Tyler D Panzner
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY, 11794-8430, USA
| | - Allen H Lee
- Stony Brook University Cancer Center, MART Level 9, Stony Brook University, Stony Brook, NY, 11794-8430, USA.,Department of Medicine, Stony Brook University, Health Science Center, Hospital Pavilion Level 5, Stony Brook, NY, 11794-8430, USA.,Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY, 11794-8430, USA
| | - Daniel Canals
- Stony Brook University Cancer Center, MART Level 9, Stony Brook University, Stony Brook, NY, 11794-8430, USA.,Department of Medicine, Stony Brook University, Health Science Center, Hospital Pavilion Level 5, Stony Brook, NY, 11794-8430, USA
| | - Chioma M Okeoma
- Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY, 11794-8430, USA
| | - Christopher J Clarke
- Stony Brook University Cancer Center, MART Level 9, Stony Brook University, Stony Brook, NY, 11794-8430, USA. .,Department of Medicine, Stony Brook University, Health Science Center, Hospital Pavilion Level 5, Stony Brook, NY, 11794-8430, USA.
| | - Yusuf A Hannun
- Department of Biochemistry and Cell Biology, Stony Brook University, Stony Brook, NY, 11794- 8430, USA. .,Stony Brook University Cancer Center, MART Level 9, Stony Brook University, Stony Brook, NY, 11794-8430, USA. .,Department of Medicine, Stony Brook University, Health Science Center, Hospital Pavilion Level 5, Stony Brook, NY, 11794-8430, USA. .,Department of Pharmacological Sciences, Stony Brook University, Stony Brook, NY, 11794-8430, USA. .,The Northport Veterans Affairs Hospital, Northport, NY, 11768, USA.
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Kaddour H, Panzner TD, Welch JL, Shouman N, Mohan M, Stapleton JT, Okeoma CM. Electrostatic Surface Properties of Blood and Semen Extracellular Vesicles: Implications of Sialylation and HIV-Induced Changes on EV Internalization. Viruses 2020; 12:E1117. [PMID: 33019624 PMCID: PMC7601085 DOI: 10.3390/v12101117] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 09/04/2020] [Accepted: 09/24/2020] [Indexed: 12/14/2022] Open
Abstract
Although extracellular vesicle (EV) surface electrostatic properties (measured as zeta potential, ζ-potential) have been reported by many investigators, the biophysical implications of charge and EV origin remains uncertain. Here, we compared the ζ-potential of human blood EVs (BEVs) and semen EVs (SEVs) from 26 donors that were HIV-infected (HIV+, n = 13) or HIV uninfected (HIV-, n = 13). We found that, compared to BEVs that bear neutral surface charge, SEVs were significantly more negatively charged, even when BEVs and SEVs were from the same individual. Comparison of BEVs and SEVs from HIV- and HIV+ groups revealed subtle HIV-induced alteration in the ζ-potential of EVs, with the effect being more significant in SEVs (∆ζ-potential = -8.82 mV, p-value = 0.0062) than BEVs (∆ζ-potential = -1.4 mV, p-value = 0.0462). These observations were validated by differences in the isoelectric point (IEP) of EVs, which was in the order of HIV + SEV ≤ HIV-SEV ≪ HIV + BEV ≤ HIV-BEV. Functionally, the rate and efficiency of SEV internalization by the human cervical epithelial cell line, primary peripheral blood lymphocytes, and primary blood-derived monocytes were significantly higher than those of BEVs. Mechanistically, removal of sialic acids from the surface of EVs using neuraminidase treatment significantly decreased SEV's surface charge, concomitant with a substantial reduction in SEV's internalization. The neuraminidase effect was independent of HIV infection and insignificant for BEVs. Finally, these results were corroborated by enrichment of glycoproteins in SEVs versus BEVs. Taken together, these findings uncover fundamental tissue-specific differences in surface electrostatic properties of EVs and highlight the critical role of surface charge in EV/target cell interactions.
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Affiliation(s)
- Hussein Kaddour
- Department of Pharmacology, Stony Brook University Renaissance School of Medicine, Stony Brook, NY 11794, USA; (H.K.); (T.D.P.); (N.S.)
| | - Tyler D. Panzner
- Department of Pharmacology, Stony Brook University Renaissance School of Medicine, Stony Brook, NY 11794, USA; (H.K.); (T.D.P.); (N.S.)
| | - Jennifer L. Welch
- Department of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA; (J.L.W.); (J.T.S.)
- Medical Service, Iowa City Veterans Affairs Medical Center, Iowa City, IA 52246, USA
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Nadia Shouman
- Department of Pharmacology, Stony Brook University Renaissance School of Medicine, Stony Brook, NY 11794, USA; (H.K.); (T.D.P.); (N.S.)
| | - Mahesh Mohan
- Host Pathogen Interaction Program, Southwest National Primate Research Center, Texas Biomedical Research Institute, San Antonio, TX 78227, USA;
| | - Jack T. Stapleton
- Department of Microbiology and Immunology, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA; (J.L.W.); (J.T.S.)
- Medical Service, Iowa City Veterans Affairs Medical Center, Iowa City, IA 52246, USA
- Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Chioma M. Okeoma
- Department of Pharmacology, Stony Brook University Renaissance School of Medicine, Stony Brook, NY 11794, USA; (H.K.); (T.D.P.); (N.S.)
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