2014  0,718
2013  0,739
2012  0,637
2011  0,658
2010  0,654
2009  0,570
2008  0,849
2007  0,805
2006  0,330
2005  0,435
2004  0,623
2003  0,567
2002  0,641
2001  0,490
2000  0,477
1999  0,762
1998  0,785
1997  0,507
1996  0,518
1995  0,502
Vol 51(2017) N 4 p. 562-570; DOI 10.1134/S0026893317040021 Full Text

L.A. Alexeeva, O.A. Patutina, A.V. Sen'kova, M.A. Zenkova, N.L. Mironova*

Inhibition of Invasive Properties of Murine Melanoma by Bovine Pancreatic DNase I In Vitro and In Vivo

Institute of Chemical Biology and Fundamental Medicine, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090 Russia

Received - 2016-07-05; Accepted - 2016-09-20

After a long pause, the accumulation of data on the involvement of tumor-specific DNA and extracellular DNA in metastasis has again placed enzymes with deoxyribonuclease activity in the focus of the search for antitumor and antimetastatic drugs. In this work, the ability of bovine pancreatic DNase I to reduce the invasive potential of B16 melanoma has been investigated in vitro and in vivo. It was found that DNase I had a cytotoxic effect on B16 melanoma cells (IC50 ≈ 104 U/mL). At the same time, significantly lower doses of DNase I (102-103 U/mL) inhibited the migratory activity of melanoma cells in vitro, causing a decrease in the distance of cell front migration and in the area of scratch healing 48 h after the enzyme addition, as well as reducing the rate of cell migration. In mice with B16 metastatic melanoma, intramuscular administration of DNase I in the dose range of 0.12-1.20 mg/kg resulted in a two- to threefold decrease in the number of surface lung metastases and caused nonspecific antigenic immune stimulation.

DNase I, melanoma, anti-metastatic drugs, tumor invasive potential