Stibogluconate sodium (Sodium stibogluconate)

Cell experiment:

Human myeloid cell line TF-1 is maintained in RPMI 1640 supplemented with 10% FCS and 40 ng/mL recombinant human GM-CSF. For cell proliferation assays, cells are washed in 10% FCS medium twice, resuspended in 10% FCS medium, incubated at 37°C for 16 h, and then cultured at 37°C in 10% FCS medium containing various amounts of cytokines, sodium stibogluconate, or potassium antimonyl tartrate for 3-6 days. The cell numbers in proliferation assays are determined by an MTT assay or by microscopic cell counting[1].

Animal experiment:

BALB/c and athymic nude BALB/c mice are inoculated (s.c.) at the flanks with Renca cells (106 cells/site). Four days after inoculation, the mice are subjected to no treatment (control) or treatment with IL-2 (105 IU/day for 5 days i.p.), Stibogluconate sodium (12 mg/day i.m. at hip regions), or the combination of the two agents for 2 wk. Tumor volume is measured during the study period and calculated using the formula for a prolate spheroid[2].

References:

[1]. Pathak MK, et al. Sodium stibogluconate is a potent inhibitor of protein tyrosine phosphatases and augments cytokine responses in hemopoietic cell lines. J Immunol. 2001 Sep 15;167(6):3391-7.
[2]. Fan K et al. Sodium Stibogluconate Interacts with IL-2 in Anti-Renca Tumor Action via a T Cell-Dependent Mechanism in Connection with Induction of Tumor-Infiltrating Macrophages. J Immunol. 2005 Nov 15;175(10):7003-8.