Spermine  (Synonyms: NSC 268508; Neuridine)

Spermine is a natural antioxidant and anti-inflammatory agent. Spermine is known to inhibit some bacterial cultures, especially strains of Staphylococcus aureus. Spermine induces neurotoxicity in the striarum dose-dependently. Spermine can reversibly inhibits DNA synthetic response, mixed lymphocyte response and the induction of cytolytic lymphocyte response in primary cultures of murine spleen cells. Spermine tetrahydrochloride is a polyamine nitric oxide donor that can provide nitric oxide to platelets and inhibit platelet activation to a certain extent concentration-dependently. Spermine tetrahydrochloride occurs in mammalian tissues, plants, bacteria, ribosomes and bacteriophage. Spermine tetrahydrochloride inhibits primary human embryo lung fibroblasts in vitro^{[1][2][3][4][5][6]}.

Spermine (40-100 μg/mL, 5 d) has ID₅₀ of 25 and 35 in H.E.L. cells and H.Ep.2 cells, respectively^[2].
Spermine (10 μg/well, when added up to 29 h after inception of culture) can inhibit the bacterial Lipopolysaccharide (HY-D1056) in BALB/c spleen cells^[3].
Spermine (5-10 μg/well, when added within 22 h after inception of culture) can completely inhibit concanavalin A (HY-P2149) in BALB/c spleen cells^[3].
Spermine (0.5 mM) shows 50% inhibition of peroxidation reaction in brain phospholipid liposomes^[4].
Spermine tetrahydrochloride (10-50 mM) increases the concentration of NO in platelets and inhibits the expression of CD62p concentration-dependently^[5].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Spermine (50-250 nM, intrastriatally) produces severe cell loss and degeneration as well as neuronal damage around the site of injection^[6].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

202.34

C₁₀H₂₆N₄

71-44-3

<28°C Solid,>30°C Liquid

Colorless to off-white

NCCCNCCCCNCCCN

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture and light

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

* Note: If you choose water as the stock solution, please dilute it to the working solution, then filter and sterilize it with a 0.22 μm filter before use.

• [1]. U. Bachrach & B. Reches, (1966) Enzymic assay for spermine and spermidine, Analytical Biochemistry, Volume 17, Issue 1, Volume 17, Issue 1, ISSN 0003-2697.

  [2]. Dawson, M., & Dryden, W. F. (1969). The toxicity of spermine and spermidine to cells in culture. Biochemical pharmacology, 18(6), 1307–1313.  [Content Brief]

  [3]. Byrd, W. J., et al., (1977). Synthetic polyamines added to cultures containing bovine sera reversibly inhibit in vitro parameters of immunity. Nature, 267(5612), 621–623.  [Content Brief]

  [4]. Løvaas, E., & Carlin, G. (1991). Spermine: an anti-oxidant and anti-inflammatory agent. Free radical biology & medicine, 11(5), 455–461.  [Content Brief]

  [5]. WANG Jing, et al., (2022) Preliminary Study on Spermine Tetrahydrochloride Inhibition of Platelet Activation[J]. JOURNAL OF CLINICAL TRANSFUSION AND LABORATORY MEDICINE, 2022, 24(3): 315-319.

  [6]. Otsuki, M., et al., (1995). In vivo pharmacological study of spermine-induced neurotoxicity. Neuroscience letters, 196(1-2), 81–84.  [Content Brief]