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Effects on tumour microcirculation in mice of misonidazole and tumour necrosis factor plus hyperthermia

Shigeru Fujimoto, K Kobayashi, M Takahashi +5 more1992British Journal of CancerJournal Article
10.1038/bjc.1992.6PubMedFree full text
CardiovascularEndocrine (ADH/ACTH/MSH)GastrointestinalHypothalamic-PituitaryImmune/InnateMusculoskeletalNeurologicalOcularRespiratory/Sinus
ActinomycetesBacterial EndotoxinsIndoor Mold (Stachybotrys, Aspergillus, etc.)MycotoxinsVolatile Organic Compounds (VOCs)Water-Damaged Buildings (WDB)

Abstract

We examined the effects of misonidazole (MISO) and recombinant human tumour necrosis factor (rh-TNF) on tumour blood flow in mice given hyperthermic treatments. MISO (500 mg kg-1) or rh-TNF (6 x 10(4) unit kg-1) was administered intraperitoneally (i.p.) prior to hyperthermia to nude mice bearing a xenoplanted human gastric cancer and tumour blood flow was measured by a hydrogen diffusion method based on polarographic determinations. MISO plus hyperthermia produced a temperature-dependent decrease in blood flow and, at 43.5 degrees C, the flow decreased to 15-30% of control and remained low for up to 24 h. Blood flow following rh-TNF plus hyperthermia was less than that at the same temperatures following MISO plus hyperthermia, and, at 43.5 degrees C, the flow decreased to 10-20% of control and remained low for up to 48 h. Tumour growth delay was closely related to the duration of the decrease in blood flow. Thus, the profound decrease in tumour blood flow following hyperthermia plus MISO or rh-TNF and the consequential tumour regression may well be of potential clinical significance.

Key Biomarkers

Alpha Melanocyte Stimulating Hormone (MSH)Immunoglobulin E (IgE)LeptinMatrix Metalloproteinase 9 (MMP9)Vascular Endothelial Growth Factor (VEGF)Visual Contrast Sensitivity (VCS)

Symptom Clusters

Appetite swingsConfusionCoughDifficulty with concentrationExcessive thirstFatigueFrequent urinationHeadacheJoint painLight sensitivityMemory lossMood swingsMuscle achesNight sweatsShortness of breathSinus congestionTingling in extremitiesWord finding difficulty

Cited By (2)

  • Sick building syndrome (SBS) and exposure to water-damaged buildings: Time series study, clinical trial and mechanismsNeurotoxicology and Teratology · 2006
  • A time-series study of sick building syndrome: chronic, biotoxin-associated illness from exposure to water-damaged buildingsNeurotoxicology and Teratology · 2005

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