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Theranostic-PDT with the antibody anti isoform 4 SOD mitocondrial labeled with PpIX in the lung cancer cell line A-549. | LitMetric

Theranostic-PDT with the antibody anti isoform 4 SOD mitocondrial labeled with PpIX in the lung cancer cell line A-549.

Photodiagnosis Photodyn Ther

Lab de Citopatología Ambiental, ENCB del Instituto Politécnico Nacional, Campus Zacatenco, Calle Wilfrido Massieu esquina Cda, Manuel Stampa, Col. Zacatenco. Del. Gustavo A. Madero, C.P. 07738, Mexico City, Mexico. Electronic address:

Published: June 2018

AI Article Synopsis

Article Abstract

Background: In this work, a drug product composed of an IgM antibody derived from a hybridoma subclone 4C1F6D5G7B8 was prepared and further labeled with PpIX to be used in cell lines A-549 and MRC-5. The aim of this work was to evaluate the potential theranostic activity of the obtained product together with photodynamic therapy (PDT).

Methods: The IgM antibody labeled with PpIX was used in different concentrations to perform theranostics with PDT in cell lines A-549 and MRC-5 in order to identify the specificity of IgM antibody in lung cancer cells by means of a LED-irradiation system set at 630 nm. The location of the conjugate was further determined by confocal microscopy.

Results: The theranostic with conjugate Ab-PpIX in the A-549 cell lines showed fluorescence by confocal microscopy, whereas the MRC-5 cell line showed no reactivity. The PDT with the conjugate in the cell line A-549 decreased its viability 70% compared to the control. On the contrary, with the MRC-5 cell line no viability diference was shown. The confocal microscopy applied to the cell line A-549 showed that the Ab-PpIX was majorly located at the cytoplasm.

Conclusion: Ab-PpIX showed therapeutical potential in lung cancer cells A-549 and had no activity in non-cancerous lung cells (MCR-5).

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Source
http://dx.doi.org/10.1016/j.pdpdt.2018.03.007DOI Listing

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