A comparative study of the effects of mercury compounds on cell viability and nucleic acid synthesis in HeLa cells

Eddie S.E. Chao, John F. Gierthy, Gerald D. Frenkel

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

The effects of various mercury compounds on HeLa cell viability and DNA and RNA syntheses in intact cells and in isolated nuclei have been studied. The compounds examined were: methylmercuric chloride, ethylmercuric chloride, dimethylmercury, phenylmercuric acetate, p-hydroxymercuribenzoate, p-hydroxymercuribenzenesulfonate, HgCl2, HgSO4, Hg(ClO4)2 and Hg2(ClO4)2. All of the compounds except dimethylmercury inhibited colony formation as well as DNA synthesis in intact cells and in isolated nuclei. RNA synthesis in intact cells was inhibited by all the compounds except dimethylmercury, p-hydroxymercuribenzoate and Hg(ClO4)2. In isolated nuclei, α-amanitin-resistant RNA synthesis was inhibited by all the compounds except dimethylmercury. α-Amanitin-sensitive RNA synthesis was stimulated by some compounds, inhibited by some, and unaffected by others. The effects of two non-mercurial sulfhydryl reagents, N-ethylmaleimide and iodoacetic acid, were also examined. These compounds showed a pattern of effects on nucleic acid synthesis which differed considerably from that of the mercury compounds. Neither compound significantly inhibited α-amanitin-resistant RNA synthesis in isolated nuclei, although both inhibited RNA synthesis in intact cells. Iodoacetic acid had no inhibitory effect on DNA synthesis in isolated nuclei but strongly inhibited DNA synthesis in intact cells.

Original languageEnglish (US)
Pages (from-to)1941-1945
Number of pages5
JournalBiochemical Pharmacology
Volume33
Issue number12
DOIs
StatePublished - Jun 15 1984
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Pharmacology

Fingerprint

Dive into the research topics of 'A comparative study of the effects of mercury compounds on cell viability and nucleic acid synthesis in HeLa cells'. Together they form a unique fingerprint.

Cite this