Abstract
Effects of inorganic arsenicals on DNA synthesis in unsensitized human blood lymphocytes were biphasic: The chemicals at very low concentrations enhanced DNA synthesis, whereas higher concentrations inhibited DNA synthesis. The concentrations of arsenicals at which the maximum stimulating effect was found were 1×10−5 M, 1×10−6 or 2×10−6 M, and 0.8×10−6 or 1×10−6 M for sodium arsenite exposure of 1 h, 3 d, and 6 d, respectively; for sodium arsenate, 1× 10−5 M, 1×10−5 M, and 2×10−6 or 5×10−6 M, respectively. Arsenicals must be present for the entire 6-d culture period to produce maximum stimulation of DNA synthesis in human lymphocytes. The longer exposure of the lymphocytes to arsenicals, the lower the concentrations of arsenicals at which the maximum stimulating effect on DNA synthesis was found. Stimulating effect of trivalent arsenic (sodium arsenite) on DNA synthesis was stronger than pentavalent arsenic (sodium arsenate), and the stronger the effect of trivalent arsenic than pentavalent, the longer exposure of the cells to the chemicals. Both sodium arsenite and sodium arsenate stimulated DNA synthesis in human lymphocytes to a lower degree than phytohemagglutinin (PHA).
Similar content being viewed by others
References
G. A. Caron, S. Poutala, and T. T. Provost,Int. Archs. Allergy Appl. Immunol. 37, 76–87 (1970).
F. Hutchinson, T. M. MacLeod, and E. J. Raffle,Clin. Exp. Immunol. 26, 531–533 (1976).
K. Nordlind,Int. Archs. Allergy Appl. Immunol. 69, 12–17 (1982).
K. Nordlind and A. Henze,Int. Archs. Allergy Appl. Immunol. 73, 162–165 (1984).
N. G. Al-Tawil, J. A. Marcusson, and E. Moller,Acta derm.-vener., Stockh. 61, 511–515 (1981).
N. Aspegren and H. Rorsman,Acta derm.-vener., Stockh. 42, 412–417 (1962).
C. W. Kim and E. Schopf,Archs. Derm. Res. 257, 57–65 (1976).
A. Papas, C. E. Orfanos, and R. Bertram,J. Invest. Derm. 55, 198–200 (1970).
E. Svejgaard, N. Morling, A. Svejgaard, and N. K. Veien,Acta Derm.-vener., Stockh. 58, 245–250 (1978).
N. A. Berger and S. A. M. Skinner,J. Cell Biol. 61, 45–55 (1974).
H. Ruhl, H. Kirchner, and G. Bochert,Proc. Soc. Exp. Biol. Med. 137, 1089–1092 (1971).
Z. Q. Meng,Biol. Trace Elem Res. 39, 73–80 (1993).
P. S. Friedmann, and S. Rogers,J. Invest. Derm 74, 400–443 (1980).
G. Moller,Immunology 19, 583–589 (1970).
A. S. Coulson and D. G. Chalmers,Immunology,12, 417–428 (1967).
N. R. Ling,Lymphocyte Stimulation, North-Holland, Amsterdam (1968).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Meng, Z., Meng, N. Effects of inorganic arsenicals on DNA synthesis in unsensitized human blood lymphocytes in vitro. Biol Trace Elem Res 42, 201–208 (1994). https://doi.org/10.1007/BF02911517
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02911517