Literature DB >> 7073947

Growth delay in small EMT6 spheroids induced by cytotoxic drugs and its modification by misonidazole pretreatment under hypoxic conditions.

P R Twentyman.   

Abstract

Experiments have been carried out to determine whether the growth delay induced in small EMT6 spheroids (approximately 250 micrometers in diameter) by a range of cytotoxic drugs can be increased by pre-incubation of the spheroids under hypoxic conditions with misonidazole (MISO). Hypoxic pre-incubation was for 3 or 5 h in the presence of 5 mM MISO, and caused a growth delay of about 1 day or 2 days respectively. Sensitization to nitrogen mustard (HN2), melphalan, chlorambucil, BCNU and CCNU was seen, but the shapes of the dose-response curves and the ratio of effects for 3 h and 5 h pretreatment varied between the drugs. In contrast to the other agents, hypoxic pre-incubation with MISO reduced the spheroid response to adriamycin.

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Year:  1982        PMID: 7073947      PMCID: PMC2010993          DOI: 10.1038/bjc.1982.93

Source DB:  PubMed          Journal:  Br J Cancer        ISSN: 0007-0920            Impact factor:   7.640


  7 in total

1.  Studies on the toxicity and radiosensitizing ability of misonidazole under conditions of prolonged incubation.

Authors:  T W Wong; G F Whitmore; S Gulyas
Journal:  Radiat Res       Date:  1978-09       Impact factor: 2.841

2.  Enhancement of antitumor activity of alkylating agents by the radiation sensitizer misonidazole.

Authors:  J J Clement; M S Gorman; I Wodinsky; R Catane; R K Johnson
Journal:  Cancer Res       Date:  1980-11       Impact factor: 12.701

3.  The response of EMT6 tumor spheroids to combined treatment with misonidazole and either nitrogen mustard, adriamycin, or BCNU.

Authors:  P R Twentyman
Journal:  Cancer Clin Trials       Date:  1980

4.  Cell-cycle inhibition by misonidazole of human cells cultivated in vitro under aerobic conditions.

Authors:  T Lindmo; E O Pettersen; E Wibe
Journal:  Br J Cancer       Date:  1979-11       Impact factor: 7.640

5.  Response to chemotherapy of EMT6 spheroids as measured by growth delay and cell survival.

Authors:  P R Twentyman
Journal:  Br J Cancer       Date:  1980-08       Impact factor: 7.640

6.  The interaction of misonidazole with radiation, chemotherapeutic agents, or heat: a preliminary report.

Authors:  I J Stratford; G E Adams; M R Horsman; S Kandaiya; S Rajaratnam; E Smith; C Williamson
Journal:  Cancer Clin Trials       Date:  1980

7.  In vivo interaction of anti-cancer drugs with misonidazole or metronidazole: methotrexate, 5-fluorouracil and adriamycin.

Authors:  I F Tannock
Journal:  Br J Cancer       Date:  1980-12       Impact factor: 7.640

  7 in total
  10 in total

Review 1.  Multicellular spheroids. A review on cellular aggregates in cancer research.

Authors:  W Mueller-Klieser
Journal:  J Cancer Res Clin Oncol       Date:  1987       Impact factor: 4.553

2.  In vitro potentiation of BCNU activity in rat brain tumour cells pretreated with misonidazole.

Authors:  D W Siemann; K Wolf; S Morrissey; K T Wheeler
Journal:  Br J Cancer       Date:  1984-06       Impact factor: 7.640

3.  Biological properties of a tumour cell line (NB1-G) derived from human neuroblastoma.

Authors:  R Carachi; T Raza; D Robertson; T W Wheldon; L Wilson; A Livingstone; V van Heyningen; G Spowart; P Middleton; J R Gosden
Journal:  Br J Cancer       Date:  1987-04       Impact factor: 7.640

4.  The effect of adriamycin and 4'-deoxydoxorubicin on cell survival of human lung tumour cells grown in monolayer and as spheroids.

Authors:  D J Kerr; T E Wheldon; A M Kerr; R I Freshney; S B Kaye
Journal:  Br J Cancer       Date:  1986-09       Impact factor: 7.640

5.  Antitumour activity and pharmacokinetics of niosome encapsulated adriamycin in monolayer, spheroid and xenograft.

Authors:  D J Kerr; A Rogerson; G J Morrison; A T Florence; S B Kaye
Journal:  Br J Cancer       Date:  1988-10       Impact factor: 7.640

6.  131I-meta-iodobenzylguanidine therapy in neuroblastoma spheroids of different sizes.

Authors:  M N Gaze; R J Mairs; S M Boyack; T E Wheldon; A Barrett
Journal:  Br J Cancer       Date:  1992-12       Impact factor: 7.640

7.  The effects of alpha and gamma interferons on human lung cancer cells grown in vitro or as xenografts in nude mice.

Authors:  P R Twentyman; P Workman; K A Wright; N M Bleehen
Journal:  Br J Cancer       Date:  1985-07       Impact factor: 7.640

8.  Misonidazole protects mouse tumour and normal tissues from the toxicity of oral CCNU.

Authors:  F Y Lee; P Workman
Journal:  Br J Cancer       Date:  1985-01       Impact factor: 7.640

9.  Effect of misonidazole pretreatment on nitrogen mustard-induced DNA cross-linking in mouse tissues in vivo.

Authors:  D Murray; R E Meyn
Journal:  Br J Cancer       Date:  1984-12       Impact factor: 7.640

10.  An investigation of the possibility of chemosensitization by clinically achievable concentrations of misonidazole.

Authors:  P R Twentyman; P Workman
Journal:  Br J Cancer       Date:  1983-02       Impact factor: 7.640

  10 in total

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