Molecular Biology and Viral Oncology Unit

Napoli, Italy

Molecular Biology and Viral Oncology Unit

Napoli, Italy
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Borrelli A.,Molecular Biology and Viral Oncology Unit | Schiattarella A.,Molecular Biology and Viral Oncology Unit | Bonelli P.,Molecular Biology and Viral Oncology Unit | Tuccillo F.M.,Molecular Biology and Viral Oncology Unit | And 2 more authors.
BioMed Research International | Year: 2014

Reactive oxygen species (ROS) are generated as a consequence of metabolic reactions in the mitochondria of eukaryotic cells. This work describes the role of the manganese superoxide dismutase (MnSOD) as a biomarker of different human diseases and proposes a new therapeutic application for the prevention of cancer and its treatment. The paper also describes how a new form of human MnSOD was discovered, its initial application, and its clinical potentials. The MnSOD isolated from a human liposarcoma cell line (LSA) was able to kill cancer cells expressing estrogen receptors, but it did not have cytotoxic effects on normal cells. Together with its oncotoxic activity, the recombinant MnSOD (rMnSOD) exerts a radioprotective effect on normal cells irradiated with X-rays. The rMnSOD is characterized by the presence of a leader peptide, which allows the protein to enter cells: this unique property can be used in the radiodiagnosis of cancer or chemotherapy, conjugating radioactive substances or chemotherapic drugs to the leader peptide of the MnSOD. Compared to traditional chemotherapic agents, the drugs conjugated with the leader peptide of MnSOD can selectively reach and enter cancer cells, thus reducing the side effects of traditional treatments. © 2014 Antonella Borrelli et al.

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