Summary
Tetrazolium violet (TV), a potent anticancer agent, has been shown to induce cell growth-inhibition in tumor cells. However, the related mechanism has not been revealed yet. In this report we assessed the influence of TV on cell growth and cell cycle in brain tumor cells. Treatment of C6 tumor cells with TV (5–15 μM for 24–72 h) resulted in a growth inhibition in a dose and time-dependent manner and G0/G1 phase arrest, determined by flow cytometry analysis. These effects were accompanied by apoptosis other than necrosis, evidenced by nuclear condensation, terminal deoxynucleotidyl transferase-mediated nick end labeling (TUNEL) assay and trypan blue exclusion assay plus lactate dehydrogenase (LDH) release assay. Treatment of cells with TV at 15 μM for 24 h resulted in an increase in the activity of caspase-3, evidenced by colorimetric assay, and a dramatic up-regulation of p53, accompanied with a significant increase of Bax/Bcl-2 ratio, as evidenced by immunofluorescence assay. These results suggest that TV induces growth inhibition of C6 cells through p53-midiated apoptotic pathway and G0/G1 checkpoint mechanism. Although detailed mechanisms remain to be explored, selective blockage of tumor cells in G0/G1 phase accompanied by p53-associated apoptosis makes tetrazolium violet a promising anticancer agent, meriting further investigations.
Similar content being viewed by others
Abbreviations
- TV:
-
tetrazolium violet
- C6:
-
cell from rat glial tumor
- 9L:
-
rat gliosarcoma cell line
- CNS-1:
-
inbred Lewis rat glioma cell line
- TUNEL:
-
TdT-mediated nick end labeling
- MTT:
-
3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrasodium bromide
- PBS:
-
phosphate-buffered saline
- DMEM:
-
Dulbecco’s modified Eagle’s medium
- HEPES:
-
4-(2-hydroxyerhyl)piperazine-1-erhanesulfonicacid
- FBS:
-
fetal bovine serum
- LDH:
-
lactate dehydrogenase
- FACS:
-
fluorescence-activated cell sorter
- FITC:
-
fluorescein isothiocyanate
- TRITC:
-
tetramethylrhodamine isothiocyanante
- CDK:
-
cyclin-dependent kinase
- Ig:
-
immunoglobulin.
References
Thompson CB, 1995 Apoptosis in the pathogenesis and treatment of disease Science 267: 1456–1462
Steller H, 1995 Mechanisms and genes of cellular suicideScience 267:1445–1449
Fisher DE, 1994 Apoptosis in cancer therapy: crossing the thresholdCell 78: 539–542
Bouton LA, Ramirez CD, Bailey DP, Yeatman CF, Yue J, Wright HV, Domen J, Rosato RR, Grant S, Fischer-Stenger K, Ryan JJ, 2004 Costimulation with interleukin-4 and interleukin-10 induces mast cell apoptosis and cell-cycle arrest: the role of p53 and the mitochondrionExp Hematol 32(12):1137–45
Kong Q, Zhang N, Zhao YF: Tetrazolium violet sensitizes tumor cells to chemotherapeutic agents. Proceedings of the American Association for Cancer Research A556, 2004
Price P, McMillan TJ, 1990 Use of the tetrazolium assay in measuring the response of human Tumor cells to ionizing radiationCancer Res 50: 1392–1396
Sugiyama K, Akiyama T, Shimizu M, Tamaoki T, Carol Courage, Gescher A, Akinaga S, 1999 Decrease in susceptibility toward induction of apoptosis and alteration in G1 checkpoint function as determinants of resistance of human lung cancer cells against the antisignaling drug UCN-01 (7-Hydroxystaurosporine) Cancer Res 59: 4406–4412
Fueyo J, Gomez-Manzano C, Yung WK, Liu TJ, Alemany R, McDonnell TJ, Shi X, Rao JS, Levin VA, Kyritsis AP, 1998 Overexpression of E2F-1 in glioma triggers apoptosis and suppresses tumor growth in vitro and in vivoNat Med 4:685–90
Ruan MS, Okcu F, Pong R-C, Andreeff M, Levin V, Hsieh J-T, Zhang W, 1999 Attenuation of WAF1/Cip1 expression by an antisense adenovirus expression vector sensitizes glioblastoma cells to apoptosis induced by chemotherapeutic agents 1,3-Bis(2- chloroethyl)-1-nitrosourea and CisplatinClinl Cancer Res 5: 197–202
Gobert C, Skladanowski A, Larsen AK, 1999 The interaction between p53 and DNA topoisomerase I is regulated differently in cells with wild-type and mutant p53. PNAS 96(18): 10355– 10360
Lau WK, Yeung CW, Lui PW, Cheung LH, Poon NT, Yung KKL, 2002 Different trends in modulation of NMDAR1 and NMDAR2B gene expression in cultured cortical and hippocampal neurons after lead exposureBrain Res 932: 10–20
Wyllie AH, Kerr JF, Currie AR, 1980 Cell death: the significance of apoptosis. Int Rev Cytol 68: 251–306
Bezabeh T, Mowat MRA, Jarolim L, Greenberg AH, Smith ICP, 2001 Detection of drug-induced apoptosis and necrosis in human cervical carcinoma cells using 1H NMR spectroscopyCell Death Differ 8: 219–224
Sun J, Kong L D, Kong Q: Centrosome crystallization by tetrazolium salts for cancer therapy. American Association for the Advancement of Science, Meeting Program A96, 2002
O’Connor PM, 1997 Mammalian G1 and G2 phase checkpointsCancer Surv 29:151–182
Hartwell LH, Kastan MB, 1994 Cell cycle control and cancerScience 266: 1821–1828
Fulda S, Debatin KM, 2004 Sensitization for anticancer drug-induced apoptosis by the chemopreventive agent resveratrolOncogene 23(40): 6702–6711
Yoon HS, Chen X, Yang VW, 2003 Kru ppel-like Factor 4 Mediates p53-dependent G1/S Cell Cycle Arrest in Response to DNA DamageJ Biol chem 278: 2101–2105
Mercer J, Figg N, Stoneman V, Braganza D, Bennett M, 2005 Endogenous p53 protects vascular smooth muscle cells from apoptosis and reduces atherosclerosis in ApoE knockout miceCirc Res 96(6):667–674
Bissonnette N, Wasylyk B, Hunting DJ, 1997 The apoptotic and transcriptional transactivation activities of p53 can be dissociatedBiochem Cell Biol 75: 351–358
Wlodarski BP, Wasik M, Ratajczak MZ, Sevignani C, Hoser G, Kawiak J, Gewirtz AM, Calabretta B, Skorski T, 1998 Role of p53 in hematopoietic recovery after cytotoxic treatmentBlood 91: 2998–3006
Bates S, Vousden KH, 1999 Mechanism of p53-mediated apoptosisCell Mol Life Sci 55: 28–37
Sabbatini P, Han J, Chiou S, Nicholson DW, White E, 1997 Interleukin 1beta converting enzyme-like protease are essential for p53-mediated transcriptionally dependent apoptosisCell Growth Differ 8: 643–653
Ding HF, McGill G, Rowan S, Schmalz C, Shimamura A, Fisher DE, 1998 Oncogene-dependent regulation of caspase activation by p53 protein in a cell-free systemJ Biol Chem 273: 28378– 28383
Gong XF, Wang MW, Tashiro S, Onodera S, Ikejima T, 2005 Pseudolaric acid B induces apoptosis through p53 and Bax/Bcl-2 pathways in human melanoma A375-S2 cellsArch Pharm Res 28(1): 68–72
Kong Q, 2003 The centrosome-centered Cell-brain in apoptosisMed Hypotheses 61(1): 126–132
Kong Q, Zhang N, Zhao YF, 2004 The roles of centrosome in cancer developmentDrug News Perspec 17:195–200
Hinchcliffe EH, Miller FJ, Cham M, Khodjakov A, Sluder G, 2001 Requirement of a Centrosomal Activity for Cell Cycle Progression Through G1 into S PhaseScience 291:1547–1550
Khodjakov A, Rieder CL, 2001 Centrosomes enhance the fidelity of cytokinesis in vertebrates and are required for cell cycle progressionJ Cell Biol 153(1): 237–42
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Zhao, Y., Zhang, N. & Kong, Q. Tetrazolium violet induces G0/G1 arrest and apoptosis in brain tumor cells. J Neurooncol 77, 109–115 (2006). https://doi.org/10.1007/s11060-005-9012-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11060-005-9012-1