Salinomycin is a carboxylic polyether ionophore isolated from Streptomyces albus that has been widely used as an agricultural antibiotic to prevent coccidiosis in poultry. Salinomycin was first isolated in 1974 by the research division of Kaken Chemical Co. in Tokyo Japan.
Salinomycin effects cell mambrane permeability by increasing cation movement across cell membranes through exchange-diffusion, resulting in altered gradients due to a lack of control of ion permeability. This effect allows ions (K+, Na+, Ca+, Mg2+) to accumulate inside the cell, reaching toxic levels. Salinomycin is effective against gram-positive bacteria including mycobacteria, some filamentous fungi, and coccidia.
Salinomycin has been shown to induce apoptosis in a variety of cancer cell lines and to inhibit multidrug resistance protein 1.
TOKU-E offers two forms of salinomycin: salinomycin (S001) and salinomycin sodium (S002). Salinomycin is slightly soluble in methanol at 10 mg/mL. Salinomycin sodium is freely soluble in water.
This product is considered a dangerous good. Quantities above 1 g may be subject to additional shipping fees. Please contact us for specific questions.
synonyms: Coxistal, Coxistac
Fangyuan Xie et al. used salinomycin from TOKU-E to study its efficacy toward liver cancer cells when used in combination with chloroquine. Read more here: "Codelivery of salinomycin and chloroquine by liposomes enables synergistic antitumor activity in vitro."
|Mechanism of Action||Salinomycin interacts with the gram-positive cell membrane which decreases control of ion permeability. This effect allows ions (K+, Na+, Ca+, Mg2+) to accumulate inside the cell to toxic levels.|
|Spectrum||Salinomycin targets primarily the gram-positive cell wall to allow ion transport into the cell. Gram-negative organisms are unaffected by salinomycin because of their additional outer membrane. Salinomycin is also effective against mycobacteria, some filamentous fungi, and Coccidia.|
|Microbiology Applications||Salinomycin is commonly used in clinical in vitro microbiological antimicrobial susceptibility tests (panels, discs, and MIC strips) against gram positive microbial isolates. Medical microbiologists use AST results to recommend antibiotic treatment options for infected patients. Representative MIC values include:|
Clostridium perfringins 0.12 µg/mL – 0.25 µg/mL
For a complete list of salinomycin MIC values, click here.
|Cancer Applications||Salinomycin is a promising anti-cancer agent which selectively targets cancer stem cells. Cancer stems cells (CSCs) are a subpopulation of cells within tumors that drive tumor growth and recurrence. They are resistant to many current cancer treatments. Salinomycin shows selective toxicity for the CSCs that exist as a subpopulation within HMLER breast cancer cells. A salinomycin treatment of 4T1 and MCF-7-Ras breast cancer cell lines results in a reduction of CSCs. Treatment of 5 mg/kg salinomycin in mice implanted with SUM159 human breast cancer cells inhibits mammary tumor growth and induces increased epithelial differentiation of tumor cells.|
The mechanism(s) for the anti-cancer properties of Salinomycin are still unclear, activation of unconventional pathways of cell death, enhanced DNA damage, and inhibition of Wnt signaling pathway, appear to be plausible mechanisms for the multi-dimensional anti-CSC and anti-tumorigenic activities of salinomycin. Salinomycin was shown to induce apoptosis in human cancer cells and overcomes apoptosis resistance through a pathway independent of activation of p53, caspase, CD95/CD95L system, and the proteasome. Kim et al. demonstrated that combined administration of salinomycin with doxorubicin or etoposide led to increased DNA damage and resulted in massive apoptosis in drug resistant cancer cells. Salinomycin inhibits CD44 expression in breast cancer cells in vitro.
Adam Huczynski (2012). "Salinomycin – a New Cancer Drug Candidate". Chemical Biology & Drug Design 79: 235–238.
Yurkovich, Marie E. et al.; Tyrakis, Petros A.; Hong, Hui; Sun, Yuhui; Samborskyy, Markiyan; Kamiya, Kohei; Leadlay, Peter F. (2011-11-11). "A Late-Stage Intermediate in Salinomycin Biosynthesis Is Revealed by Specific Mutation in the Biosynthetic Gene Cluster". ChemBioChem 13 (1): 66–71.
Gupta, P. et al.; Onder, Tamer T.; Jiang, Guozhi; Tao, Kai; Kuperwasser, Charlotte; Weinberg, Robert A.; Lander, Eric S. (2009-08-13). "Identification of selective inhibitors of cancer stem cells by high-throughput screening". Cell 138 (4): 645–59
Eameema Muntimadugu, Rajendra Kumar, Shantikumar Saladi, Towseef Amin Rafeeqi, Wahid Khan, "CD44 targeted chemotherapy for co-eradication of breast cancer stem cells and cancer cells using polymeric nanoparticles of salinomycin and paclitaxel", Colloids and Surfaces B: Biointerfaces, Vol. 143 (2016): 532-546
|MIC||Campylobacter jejuni| >256|| Clostridium perfringens| 0.12 - 0.25|| Enterococcus faecalis| 0.5|| Escherichia coli| >256|| Salmonella Enteritidis| >256|| Staphylococcus aureus| 2|| Staphylococcus epidermidis| 2|||