Abstract
The effects of concanavalin A and ricin (RCAII, Mr 65,000) on [3H]thymidine incorporation into human neuroblastoma IMR-32 DNA showed reduction of total DNA synthesis to 50% and 70% of control, respectively. Two DNA polymerase (DNA nucleotidyltransferase, EC 2.7.7.7.) activities (alpha and beta) involved in the biosynthesis in vitro of DNA were separated by sucrose density gradient centrifugation from IMR-32 cell homogenate. The DNA polymerase alpha activity was also purified by selective precipitation with polyethylene glycol (Mr 6000) followed by agarose-concanavalin A column chromatography. The activities of both DNA polymerases were examined at various concentrations of mutagenic and nonmutagenic plant agglutinins and the toxin ricin. Concanavalin A and ricin specifically inhibited DNA polymerase alpha activity (activity reduced to 19% and 10%, respectively), whereas DNA polymerase beta activity was inhibited (reduced to 16%) by red kidney bean agglutinin (PHA-P).
MeSH Terms
Cell Line
Cell-Free System
Concanavalin A/pharmacology
DNA, Neoplasm/biosynthesis
Lectins/pharmacology
Neoplasms, Experimental/enzymology
Neuroblastoma/enzymology
Nucleic Acid Synthesis Inhibitors
Ricin/pharmacology
Chemicals
DNA, Neoplasm
Lectins
Nucleic Acid Synthesis Inhibitors
Concanavalin A
Ricin
Authors & Affiliations
3 authors, click to expand affiliations / ORCID
Bhattacharya P
Simet I
Basu S
References (31)
31 references, click to expand
-
Phytohemagglutinin: an initiator of mitosis in cultures of normal human leukocytes.
Cancer Res. 1960 May;20:462-6
PMID: 14427849
-
Induction of spleen cell growth and DNA polymerase activity by Corynebacterium parvum.
Cancer Res. 1978 Jun;38(6):1617-20
PMID: 647675
-
DNA polymerase activities in differentiating mouse neuroblastoma N-18 cells.
Proc Natl Acad Sci U S A. 1978 Mar;75(3):1289-93
PMID: 274718
-
DNA polymerase alpha, beta and gamma activities in rabbit spleen cell populations stimulated by various doses of concanavalin A.
Exp Cell Res. 1978 Apr;113(1):57-62
PMID: 639873
-
A rapid technique to separate DNA polymerase-alpha and -beta activity from a cytosol extract.
Anal Biochem. 1978 Aug 1;88(2):399-405
PMID: 697016
-
Eukaryotic DNA polymerases.
Annu Rev Biochem. 1977;46:25-47
PMID: 332062
-
Embryonic chicken brain and mouse neuroblastoma cells N1E-115 and N-18 contain an inhibitor of acid deoxyribonuclease.
Proc Natl Acad Sci U S A. 1977 Mar;74(3):842-5
PMID: 265579
-
Structure and toxicity of pure ricinus agglutinin.
Biochim Biophys Acta. 1976 Dec 21;451(2):536-48
PMID: 826270
-
The effects of phytohemagglutinin on the growth and histochemical properties of mammalian cells in tissue culture.
Anat Rec. 1968 Dec;162(4):459-66
PMID: 5701623
-
Cell-substrate adhesivity. A determinant of cell motility.
Exp Cell Res. 1972 Jan;70(1):33-40
PMID: 4332741
-
DNA polymerases of eukaryotes.
FEBS Lett. 1975 Dec 15;60(2):233-43
PMID: 58795
-
Inhibition of marrow granulocytic colony formation by phytohemagglutinin.
J Cell Physiol. 1973 Oct;82(2):277-83
PMID: 4356679
-
Differential toxicity on normal and transformed cells in vitro and inhibition of tumour development in vivo by concanavalin A.
Nature. 1970 Sep 19;227(5264):1244-6
PMID: 4318127
-
Characterization of two plant lectins from Ricinus communis and their quantitative interaction with a murine lymphoma.
Biochemistry. 1974 Jan 1;13(1):196-204
PMID: 4202710
-
On the toxic proteins abrin and ricin. Studies of their binding to and entry into Ehrlich ascites cells.
J Biol Chem. 1974 Jun 10;249(11):3557-62
PMID: 4208663
-
The interactions of lectins with animal cell surfaces.
Int Rev Cytol. 1974;39:89-190
PMID: 4611947
-
Inhibitory effects of lectins and lymphocyte mitogens on murine lymphomas and myelomas.
J Natl Cancer Inst. 1973 Sep;51(3):883-90
PMID: 4542714
-
A unifying hypothesis concerning the nature of malignant growth.
Proc Natl Acad Sci U S A. 1972 Oct;69(10):2840-1
PMID: 4507608
-
Multiple forms of DNA polymerase in mouse myeloma.
Proc Natl Acad Sci U S A. 1974 Feb;71(2):578-82
PMID: 4521824
-
Mechanism of cell entry and toxicity of an affinity- purified lectin from Ricinus communis and its differential effects on normal and virus-transformed fibroblasts.
Cancer Res. 1975 Jan;35(1):144-55
PMID: 162859
-
Mechanism of action of the toxic lectins abrin and ricin.
Nature. 1974 Jun 14;249(458):627-31
PMID: 4857870
-
Isolation and comparison of galactose-binding lectins from Abrus precatorius and Ricinus communis.
J Biol Chem. 1974 Feb 10;249(3):803-10
PMID: 4811904
-
Treatment of abrin and ricin with -mercaptoethanol opposite effects on their toxicity in mice and their ability to inhibit protein synthesis in a cell-free system.
FEBS Lett. 1972 Nov 15;28(1):48-50
PMID: 4646874
-
Chemical nature of the receptor site for various phytomitogens.
Biochemistry. 1972 Oct 10;11(21):4000-5
PMID: 4673056
-
Inhibition of ascites tumor development by concanavalin A.
Int J Cancer. 1972 Jan 15;9(1):143-9
PMID: 5015663
-
Studies on the induction of DNA polymerase during transformation of human lymphocytes.
Cancer Res. 1972 Jan;32(1):107-13
PMID: 5007680
-
Lectins.
Ann N Y Acad Sci. 1970 Feb 13;169(1):168-90
PMID: 5263840
-
Inhibition by phytohemagglutinin of DNA synthesis in cultured mouse lymphomas.
J Natl Cancer Inst. 1971 Apr;46(4):763-73
PMID: 5573768
-
Restoration of normal growth by covering of agglutinin sites on tumour cell surface.
Nature. 1970 Nov 7;228(5271):512-5
PMID: 5472464
-
Abrin and ricin: new anti-tumour substances.
Nature. 1970 Jul 18;227(5255):292-3
PMID: 5428202
-
Effects of phytohemagglutinin and isoproterenol on DNA synthesis in lymphocytes from normal donors and patients with chronic lymphocytic leukemia.
Cancer Res. 1970 Mar;30(3):717-23
PMID: 5425294