title: In vitro decreases of the fibrinolytic potential of cultured human fibrosarcoma cell line, HT1080, by Nigella sativa oil.
abstract: It is generally accepted that the fibrinolytic potential of tumor cells is related to their malignant phenotype. In the present study, Nigella sativa oil (NSO) was studied to evaluate its effect on the fibrinolytic potential of the fibosarcoma cell line HT1080 to elucidate whether this oil might have an antitumor activity through its modulation of the fibrinolytic potential of such cells. NSO produced a concentration-dependent inhibition of tissue-type plasminogen activator (t-PA), urokinase-type plasminogen activator (u-PA) and plasminogen activator inhibitor type 1 (PAI-1). When subconfluent HT1080 cells were conditioned with oil, a concentration (0.0-200 microg oil/ml)-dependent decrease in t-PA, u-PA and PAI-1 antigen was observed. There was also a concentration-dependent decrease (from 0.0 to 112.5 microg oil/ml) in the confluent cultures. The results showed that blackseed oil decreases the fibrinolytic potential of the human fibrosarcoma cell line (HT1080) in vitro, implying that inhibition of local tumor invasion and metastasis may be one such mechanism.
authors.affiliation: Department of Zoology, Faculty of Science, University of Minia, Minia, Egypt. ezzat_awad@med.uni-heidelberg.de
authors.forename: E M
authors.initials: EM
authors.lastname: Awad
mesh_terms: D000972:Antineoplastic Agents, Phytogenic / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D045744:Cell Line, Tumor / Q000187:drug effects; D004305:Dose-Response Relationship, Drug; D005342:Fibrinolysis / Q000187:drug effects*; D005354:Fibrosarcoma / Q000188:drug therapy / Q000473:pathology; D006801:Humans; D031881:Nigella sativa; D008517:Phytotherapy; D010938:Plant Oils / Q000008:administration & dosage / Q000494:pharmacology* / Q000627:therapeutic use; D017395:Plasminogen Activator Inhibitor 1 / Q000378:metabolism; D010959:Tissue Plasminogen Activator / Q000378:metabolism; D014568:Urokinase-Type Plasminogen Activator / Q000378:metabolism
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D010938:Plant Oils; D017395:Plasminogen Activator Inhibitor 1; D010959:Tissue Plasminogen Activator; D014568:Urokinase-Type Plasminogen Activator