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Rodríguez-Razón CM, Yañez-Sánchez I, Ramos-Santillan VO, Velásquez-Ordóñez C, Gutiérrez-Rubio SA, García-García MR, López-Roa RI, Sánchez-Hernández PE, Daneri-Navarro A, García-Iglesias T. Adhesion, proliferation, and apoptosis in different molecular portraits of breast cancer treated with silver nanoparticles and its pathway-network analysis. Int J Nanomedicine 2018; 13:1081-1095. [PMID: 29503542 PMCID: PMC5826086 DOI: 10.2147/ijn.s152237] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background Silver nanoparticles (AgNPs) have attracted considerable attention due to the variety of their applications in medicine and other sciences. AgNPs have been used in vitro for treatment of various diseases, such as hepatitis B and herpes simplex infections as well as colon, cervical, and lung cancers. In this study, we assessed the effect on proliferation, adhesion, and apoptosis in breast cancer cell lines of different molecular profiles (MCF7, HCC1954, and HCC70) exposed to AgNPs (2–9 nm). Methods Breast cancer cell lines were incubated in vitro; MTT assay was used to assess proliferation. Adhesion was determined by real-time analysis with the xCELLingence system. Propidium iodide and fluorescein isothiocyanate-Annexin V assay were used to measure apoptosis. The transcriptome was assessed by gene expression microarray and Probabilistic Graphical Model (PGM) analyses. Results The results showed a decreased adhesion in breast cancer cell lines and the control exposed to AgNPs was noted in 24 hours (p≤0.05). We observed a significant reduction in the proliferation of MCF7 and HCC70, but not in HCC1954. Apoptotic activity was seen in all cell lines exposed to AgNPs, with an apoptosis percentage of more than 60% in cancer cell lines and less than 60% in the control. PGM analysis confirmed, to some extent, the effects of AgNPs primarily on adhesion by changes in the extracellular matrix. Conclusion Exposure to AgNPs causes an antiproliferative, apoptotic, and anti-adhesive effect in breast cancer cell lines cultured in vitro. More research is needed to evaluate the potential use of AgNPs to treat different molecular profiles of breast cancer in humans.
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Affiliation(s)
- Christian M Rodríguez-Razón
- Laboratory of Immunology and Institute of Experimental and Clinical Therapeutics, Department of Physiology, University Center of Health Sciences, University of Guadalajara, Jalisco, Mexico
| | - Irinea Yañez-Sánchez
- Center for Research in Nanosciences and Nanotechnology, Department of Natural and Exact Sciences, University Center of the Valleys, University of Guadalajara, Jalisco, Mexico
| | - Vicente O Ramos-Santillan
- Laboratory of Immunology and Institute of Experimental and Clinical Therapeutics, Department of Physiology, University Center of Health Sciences, University of Guadalajara, Jalisco, Mexico
| | - Celso Velásquez-Ordóñez
- Center for Research in Nanosciences and Nanotechnology, Department of Natural and Exact Sciences, University Center of the Valleys, University of Guadalajara, Jalisco, Mexico
| | - Susan A Gutiérrez-Rubio
- Laboratory of Immunology and Institute of Experimental and Clinical Therapeutics, Department of Physiology, University Center of Health Sciences, University of Guadalajara, Jalisco, Mexico
| | - Maritza R García-García
- Department of Health Sciences, University Center of the High University of Guadalajara, Jalisco, Mexico
| | - Roció I López-Roa
- Laboratory of Immunology and Institute of Experimental and Clinical Therapeutics, Department of Physiology, University Center of Health Sciences, University of Guadalajara, Jalisco, Mexico
| | - Pedro E Sánchez-Hernández
- Laboratory of Immunology and Institute of Experimental and Clinical Therapeutics, Department of Physiology, University Center of Health Sciences, University of Guadalajara, Jalisco, Mexico
| | - Adrian Daneri-Navarro
- Laboratory of Immunology and Institute of Experimental and Clinical Therapeutics, Department of Physiology, University Center of Health Sciences, University of Guadalajara, Jalisco, Mexico
| | - Trinidad García-Iglesias
- Laboratory of Immunology and Institute of Experimental and Clinical Therapeutics, Department of Physiology, University Center of Health Sciences, University of Guadalajara, Jalisco, Mexico
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Freitas VM, Vilas-Boas VF, Pimenta DC, Loureiro V, Juliano MA, Carvalho MR, Pinheiro JJV, Camargo ACM, Moriscot AS, Hoffman MP, Jaeger RG. SIKVAV, a laminin alpha1-derived peptide, interacts with integrins and increases protease activity of a human salivary gland adenoid cystic carcinoma cell line through the ERK 1/2 signaling pathway. THE AMERICAN JOURNAL OF PATHOLOGY 2007; 171:124-38. [PMID: 17591960 PMCID: PMC1941583 DOI: 10.2353/ajpath.2007.051264] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Adenoid cystic carcinoma is a frequently occurring malignant salivary gland neoplasm. We studied the induction of protease activity by the laminin-derived peptide, SIKVAV, in cells (CAC2) derived from this neoplasm. Laminin alpha1 and matrix metalloproteinases (MMPs) 2 and 9 were immunolocalized in adenoid cystic carcinoma cells in vivo and in vitro. CAC2 cells cultured on SIKVAV showed a dose-dependent increase of MMP9 as detected by zymography and colocalization of alpha3 and alpha6 integrins. Small interfering RNA (siRNA) knockdown of integrin expression in CAC2 cells resulted in decreased adhesion to the peptide. SIKVAV affinity chromatography and immunoblot analysis showed that alpha3, alpha6, and beta1 integrins were eluted from the SIKVAV column, which was confirmed by mass spectrometry and a solid-phase binding assay. Small interfering RNA experiments also showed that these integrins, through extracellular signal-regulated kinase (ERK) 1/2 signaling, regulate MMP secretion induced by SIKVAV in CAC2 cells. We propose that SIKVAV increases protease activity of a human salivary gland adenoid cystic carcinoma cell line through alpha3beta1 and alpha6beta1 integrins and the ERK 1/2 signaling pathway.
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Affiliation(s)
- Vanessa M Freitas
- Universidade de São Paulo, Instituto de Ciências Biomédicas, Departamento de Biologia Celular e do Desenvolvimento, Av Prof Lineu Prestes 1524, Ed Biomédicas 1, sala 405, São Paulo SP, Brazil
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Crosas E, Egea MA, Reig F. Spectroscopic techniques applied to the study of laminin fragments inserted into model membranes. J Colloid Interface Sci 2006; 295:264-9. [PMID: 16162352 DOI: 10.1016/j.jcis.2005.07.064] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2005] [Revised: 07/27/2005] [Accepted: 07/29/2005] [Indexed: 11/27/2022]
Abstract
The influence of four laminin-derived peptides on bilayer organization is studied. Spectroscopic methods applied were based on pyrene fluorescence properties (quenching, I1/I3, and monomer/excimer equilibrium), asymmetric membrane fluorescence (NBD-PE/dithionite), and polarization fluorescence (TMA-DPH). Also, the ability of these peptides to release carboxyfluorescein entrapped in vesicles was determined. Results suggest that these peptides do not noticeably modify the packing and motion of lipids (in the gel state), but coat its surface, preventing penetration of quenchers and chemical reactants. Nevertheless, their presence promotes a soft release of entrapped CF after incubation at 37 degrees C.
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Affiliation(s)
- E Crosas
- Peptides Department, Institute for Chemical and Environmental Research, Jordi Girona 18, 08034 Barcelona, Spain
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Davern SM, Foote LJ, Lankford TK, Macy SD, Wall MD, Kennel SJ. Identification of an antilaminin-1 scFv that preferentially homes to vascular solid tumors. Cancer Biother Radiopharm 2006; 20:524-33. [PMID: 16248768 DOI: 10.1089/cbr.2005.20.524] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The tumor vasculature and extracellular matrix make attractive targets for distinguishing solid tumors from normal cells. In solid tumors, the processes of angiogenesis and metastasis potentially give rise to unique epitopes not usually accessible in homeostatic organs. Specific targeting of solid tumors for radioimmunotherapy requires that the targeting agent accumulate rapidly and at high levels at the tumor site. This study involved the selection of scFvs that recognize laminin-1 in vitro from the Tomlinson I and J phage display libraries. Selected, purified scFvs were radioiodinated and injected in tumor-bearing mice. One of these, scFv 15-9, exhibited preferential accumulation at subcutaneous tumors when compared to other antilaminin scFvs or to a control scFv. Autoradiographic analysis indicated that scFv15- 9 also displayed a higher vessel:parenchyma ratio than did two other antilaminin scFvs, scFv 15-6 and scFv 15-1, indicating a preferential accumulation of scFv 15-9 around vessel structures. Immunohistochemistry confirmed that scFv 15-9 accumulated at sites of endothelial cells lining vessel structures where significant levels of laminin were present. These data demonstrate that scFv 15-9 binds to a specific epitope on laminin and has potential for tumor endoradiotherapy in subcutaneous tumors.
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Affiliation(s)
- Sandra M Davern
- Oak Ridge National Laboratory, Building 45005, Bethel Valley Road, Oak Ridge, TN 37831, USA
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Alsina MA, Ortiz A, Polo D, Comelles F, Reig F. Synthesis and study of molecular interactions between phosphatidyl choline and two laminin derived peptides hydrophobically modified. J Colloid Interface Sci 2006; 294:385-90. [PMID: 16153656 DOI: 10.1016/j.jcis.2005.07.057] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2005] [Revised: 07/20/2005] [Accepted: 07/23/2005] [Indexed: 10/25/2022]
Abstract
Two peptides based on the active SIKVAV sequence were synthesized and hydrophobically modified through attachment of a myristoyl residue to the amino terminal group. A comparative study was carried out on the physicochemical properties of both parent and hydrophobically modified structures. Properties studied were hydrophobicity, surface activity, spreadability on aqueous surfaces, penetration in lipid monolayers, aggregation and haemolytic activity. Results obtained indicate that myristoyl containing peptides form micelles at 10(-6) M concentration, whereas parent peptides start to aggregate at 10(-5) M. All of them are able to spread on aqueous surfaces forming stable monolayers. Concerning their haemolytic activity only one of the sequences promotes a partial lysis of erythrocytes after 30 min incubation at 37 degrees C and 10(-5) M concentration in the media.
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Affiliation(s)
- M A Alsina
- Physicochemistry Department, Faculty of Pharmacy, University of Barcelona, Avda. Joan XXIII s/n, 08028 Barcelona, Spain
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Novel Biological Properties of Peptides Arising from Basement Membrane Proteins. CURRENT TOPICS IN MEMBRANES 2005. [DOI: 10.1016/s1063-5823(05)56013-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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