| Bioactivity | Iobenguane sulfate (MIBG sulfate) is an analogue of the neurotransmitter norepinephrine with antitumor activity. Radioiodinated Iobenguane sulfate is clinically used as a tumor-targeted radiopharmaceutical in the diagnosis and treatment of adrenergic tumors. Iobenguane sulfate is a high-affinity substrate for cholera toxin that interferes with cellular mono(ADP-ribosylation)[1][2]. |
| Invitro | Iobenguane sulfate (MIBG sulfate) (2-20 μg/ml; 72 hours) inhibits cell growth in a panel of human and mouse leukemia, fibrosarcoma, melanoma, and neuroblastoma cell lines[1].Iobenguane sulfate (MIBG sulfate) is a potent affector of endogenous mono(ADP-ribosyl) transferases of turkey and human erythrocyte membranes, exerting its effect in the μM concentration range[2]. Cell Proliferation Assay[1] Cell Line: |
| In Vivo | Iobenguane sulfate (MIBG hemisulfate) (20 mg/kg; i.p.; daily on days 3-6) shows antitumor activity[1].The survival of male strain AF mice inoculates with N1E115 neuroblastoma and treats according to NIH protocols for new drug testing with 9 daily injections of Iobenguane sulfate (40 mg/kg), Marking prolongation of sugvival but no cures were observed[1].Iobenguane sulfate testes for its toxicity on male strain AF (N1Ell5) mice with 5 daily injections. At 50 mg/kg body weight, all animals died after 1-4 doses and 4/16 animals died on a schedule of 44 mg/kg[1]. Animal Model: |
| Name | Iobenguane sulfate |
| CAS | 87862-25-7 |
| Formula | C8H10IN3.1/2H2O4S |
| Molar Mass | 324.13 |
| Appearance | Solid |
| Transport | Room temperature in continental US; may vary elsewhere. |
| Storage | 4°C, sealed storage, away from moisture *In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture) |
| Reference | [1]. Loesberg C, et al. Meta-iodobenzylguanidine (MIBG), a novel high-affinity substrate for cholera toxin that interferes with cellular mono(ADP-ribosylation). Biochim Biophys Acta. 1990 Jan 19;1037(1):92-9. |