1
|
Ambrico M, Lasalvia M, Ligonzo T, Ambrico PF, Perna G, Capozzi V. Recognition of healthy and cancerous breast cells: Sensing the differences by dielectric spectroscopy. Med Phys 2020; 47:5373-5382. [PMID: 32750750 DOI: 10.1002/mp.14425] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 07/08/2020] [Accepted: 07/27/2020] [Indexed: 11/07/2022] Open
Abstract
PURPOSE The response of human cells to applied electrical signals depends on the cellular health status, because it is influenced by the composition and structure of the main cellular components. Therefore, electrical impedance-based techniques can be considered as sensitive tools to investigate healthy or disease state at cellular level. The goal of this study is to show that different types of in vitro cellular lines, related to different health status, can be differentiated using impedance spectra analysis. METHODS Three different types of human breast cell line, corresponding to healthy, cancerous, and metastatic adenocarcinoma cells, were measured by means of electrical impedance spectroscopy. By modeling the investigated cells with proper resistive and capacitive circuital elements, the magnitude of the cell electrical components and spectra of real and imaginary part of dielectric permittivity were obtained. The latter were subsequently examined with a commonly adopted mathematical model, in order to estimate the values of specific dielectric parameters for the three different cellular lines. RESULTS The relative variation of cellular capacitance with respect to that of the culture medium, estimated at 100 Hz, has a larger value for the two types of cancerous cells with respect to the noncancerous type. Furthermore, the ratio between the real and imaginary part of the dielectric permittivity function has larger values for metastatic cells with respect to the normal and nonmetastatic ones. Therefore, the mentioned relative capacitance allows to discriminate between normal and cancerous cells, whereas the results obtained for the dielectric function can discriminate between metastatic and nonmetastatic cells. CONCLUSIONS This study can be considered as an exploratory investigation of evaluating in vitro the health status of humans cells using selected electrical impedance parameters as potential markers. The obtained results highlight that a standard cultureware system, provided with interdigitated electrodes and appropriate impedance parameters, that is, cellular capacitance and the ratio between the imaginary and real part of cellular dielectric function, can be used to discriminate between healthy and cancerous breast cell lines, as well as different malignancy degrees.
Collapse
Affiliation(s)
- M Ambrico
- CNR-ISTP Istituto per la Scienza e Tecnologia dei Plasmi - Sede di Bari, Via Amendola 122/D, Bari, 70125, Italy.,Istituto Nazionale di Fisica Nucleare - Sezione di Bari, Via Amendola Via Amendola 173, Bari, 70125, Italy
| | - M Lasalvia
- Istituto Nazionale di Fisica Nucleare - Sezione di Bari, Via Amendola Via Amendola 173, Bari, 70125, Italy.,Dipartimento di Medicina Clinica e Sperimentale, Università di Foggia, Viale L. Pinto 1, Foggia, 71122, Italy
| | - T Ligonzo
- Istituto Nazionale di Fisica Nucleare - Sezione di Bari, Via Amendola Via Amendola 173, Bari, 70125, Italy.,Dipartimento Interateneo di Fisica "M. Merlin" Università degli Studi di Bari, Via Amendola 173, Bari, 70125, Italy
| | - P F Ambrico
- CNR-ISTP Istituto per la Scienza e Tecnologia dei Plasmi - Sede di Bari, Via Amendola 122/D, Bari, 70125, Italy.,Istituto Nazionale di Fisica Nucleare - Sezione di Bari, Via Amendola Via Amendola 173, Bari, 70125, Italy
| | - G Perna
- Istituto Nazionale di Fisica Nucleare - Sezione di Bari, Via Amendola Via Amendola 173, Bari, 70125, Italy.,Dipartimento di Medicina Clinica e Sperimentale, Università di Foggia, Viale L. Pinto 1, Foggia, 71122, Italy
| | - V Capozzi
- Istituto Nazionale di Fisica Nucleare - Sezione di Bari, Via Amendola Via Amendola 173, Bari, 70125, Italy.,Dipartimento di Medicina Clinica e Sperimentale, Università di Foggia, Viale L. Pinto 1, Foggia, 71122, Italy
| |
Collapse
|
2
|
Lasalvia M, Scrima R, Perna G, Piccoli C, Capitanio N, Biagi PF, Schiavulli L, Ligonzo T, Centra M, Casamassima G, Ermini A, Capozzi V. Correction: Exposure to 1.8 GHz electromagnetic fields affects morphology, DNA-related Raman spectra and mitochondrial functions in human lympho-monocytes. PLoS One 2018; 13:e0198892. [PMID: 29879212 PMCID: PMC5991663 DOI: 10.1371/journal.pone.0198892] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
[This corrects the article DOI: 10.1371/journal.pone.0192894.].
Collapse
|
3
|
Lasalvia M, Scrima R, Perna G, Piccoli C, Capitanio N, Biagi PF, Schiavulli L, Ligonzo T, Centra M, Casamassima G, Ermini A, Capozzi V. Exposure to 1.8 GHz electromagnetic fields affects morphology, DNA-related Raman spectra and mitochondrial functions in human lympho-monocytes. PLoS One 2018; 13:e0192894. [PMID: 29462174 PMCID: PMC5819811 DOI: 10.1371/journal.pone.0192894] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 01/24/2018] [Indexed: 01/10/2023] Open
Abstract
Blood is a fluid connective tissue of human body, where it plays vital functions for the nutrition, defense and well-being of the organism. When circulating in peripheral districts, it is exposed to some physical stresses coming from outside the human body, as electromagnetic fields (EMFs) which can cross the skin. Such fields may interact with biomolecules possibly inducing non thermal-mediated biological effects at the cellular level. In this study, the occurrence of biochemical/biological modifications in human peripheral blood lympho-monocytes exposed in a reverberation chamber for times ranging from 1 to 20 h to EMFs at 1.8 GHz frequency and 200 V/m electric field strength was investigated. Morphological analysis of adherent cells unveiled, in some of these, appearance of an enlarged and deformed shape after EMFs exposure. Raman spectra of the nuclear compartment of cells exposed to EMFs revealed the onset of biochemical modifications, mainly consisting in the reduction of the DNA backbone-linked vibrational modes. Respirometric measurements of mitochondrial activity in intact lympho-monocytes resulted in increase of the resting oxygen consumption rate after 20 h of exposure, which was coupled to a significant increase of the FoF1-ATP synthase-related oxygen consumption. Notably, at lower time-intervals of EMFs exposure (i.e. 5 and 12 h) a large increase of the proton leak-related respiration was observed which, however, recovered at control levels after 20 h exposure. Confocal microscopy analysis of the mitochondrial membrane potential supported the respiratory activities whereas no significant variations in the mitochondrial mass/morphology was observed in EMFs-exposed lympho-monocytes. Finally, altered redox homeostasis was shown in EMFs-exposed lympho-monocytes, which progressed differently in nucleated cellular subsets. This results suggest the occurrence of adaptive mechanisms put in action, likely via redox signaling, to compensate for early impairments of the oxidative phosphorylation system caused by exposure to EMFs. Overall the data presented warn for health safety of people involved in long-term exposure to electromagnetic fields, although further studies are required to pinpoint the leukocyte cellular subset(s) selectively targeted by the EMFs action and the mechanisms by which it is achieved.
Collapse
Affiliation(s)
- M. Lasalvia
- Dipartimento di Medicina Clinica e Sperimentale, Università di Foggia, Foggia, Italy
- Istituto Nazionale di Fisica Nucleare–sezione di Bari, Bari, Italy
| | - R. Scrima
- Dipartimento di Medicina Clinica e Sperimentale, Università di Foggia, Foggia, Italy
| | - G. Perna
- Dipartimento di Medicina Clinica e Sperimentale, Università di Foggia, Foggia, Italy
- Istituto Nazionale di Fisica Nucleare–sezione di Bari, Bari, Italy
- * E-mail:
| | - C. Piccoli
- Dipartimento di Medicina Clinica e Sperimentale, Università di Foggia, Foggia, Italy
| | - N. Capitanio
- Dipartimento di Medicina Clinica e Sperimentale, Università di Foggia, Foggia, Italy
| | - P. F. Biagi
- Dipartimento Interateneo di Fisica, Università di Bari, Bari, Italy
| | - L. Schiavulli
- Istituto Nazionale di Fisica Nucleare–sezione di Bari, Bari, Italy
- Dipartimento Interateneo di Fisica, Università di Bari, Bari, Italy
| | - T. Ligonzo
- Istituto Nazionale di Fisica Nucleare–sezione di Bari, Bari, Italy
- Dipartimento Interateneo di Fisica, Università di Bari, Bari, Italy
| | - M. Centra
- Banca del sangue, Ospedali Riuniti di Foggia, Foggia, Italy
| | - G. Casamassima
- Istituto Nazionale di Fisica Nucleare–sezione di Bari, Bari, Italy
- Dipartimento Interateneo di Fisica, Università di Bari, Bari, Italy
| | - A. Ermini
- Dipartimento di Ingegneria Industriale, Università di Tor Vergata, Roma, Italy
| | - V. Capozzi
- Dipartimento di Medicina Clinica e Sperimentale, Università di Foggia, Foggia, Italy
- Istituto Nazionale di Fisica Nucleare–sezione di Bari, Bari, Italy
| |
Collapse
|
4
|
Lorusso GF, Capozzi V, Augelli V, Minafra A, Maggipinto G, Ligonzo T, Flesia C, Bruno G, Capezzuto P. Interference effects in the uv extinction spectra of inhomogeneous amorphous silicon. Phys Rev B Condens Matter 1993; 48:12292-12295. [PMID: 10007584 DOI: 10.1103/physrevb.48.12292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|