Doxycycline HCl

Catalog No.S4005 Batch:S400502

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Technical Data

Formula

C22H24N2O8.HCl
Molecular Weight 480.9 CAS No. 10592-13-9
Solubility (25°C)* In vitro DMSO 96 mg/mL (199.62 mM)
Water Insoluble
Ethanol Insoluble
In vivo (Add solvents to the product individually and in order)
Clear solution
5% DMSO 95% Corn oil
0.6mg/ml Taking the 1 mL working solution as an example, add 50 μL of 12 mg/ml clear DMSO stock solution to 950 μL of corn oil and mix evenly. The mixed solution should be used immediately for optimal results. 
Clear solution
5%DMSO 40%PEG300 5%Tween80 50%ddH2O
4.8mg/ml Taking the 1 mL working solution as an example, add 50 μL of 96 mg/ml clarified DMSO stock solution to 400 μL of PEG300, mix evenly to clarify it; add 50 μL of Tween80 to the above system, mix evenly to clarify; then continue to add 500 μL of ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results. 
* <1 mg/ml means slightly soluble or insoluble.
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
* Room temperature shipping (Stability testing shows this product can be shipped without any cooling measures.)

Preparing Stock Solutions

Biological Activity

Description Doxycycline HCl is a tetracycline antibiotic that commonly used to treat a variety of infections, and also a MMP inhibitor.
Targets
MMP [1]
In vitro Doxycycline (50 μM) completely inhibits degradation of type II collagen, but not that of type I collagen in rheumatoid synovial fibroblasts and endothelial cells. Doxycycline (50 μM) down-regulated MMP-8 induction, at both the mRNA and protein levels in rheumatoid synovial fibroblasts and endothelial cells. [1] Doxycycline not only inhibits MMP-8 and MMP-9 (gelatinase B) activity, but also the synthesis of MMPs in human endothelial cells. Doxycycline (50 μM) completely inhibits the phorbol-12-myristate-13-acetate (PMA)-mediated induction of MMP-8 and MMP-9, as measured by Western blotting and gelatin zymography, respectively. [2] Doxycycline inhibits the LPS-induced IL-1beta increase in the mRNA and protein amounts in the corneal epithelium and upregulates the expression of the anti-inflammatory IL-1 RA protein in human cultured corneal epithelium. Doxycycline reduces the steady state level of the cellular ICE protein but does not affect the level of ICE transcripts. Doxycycline significantly decreases IL-1beta bioactivity in the supernatants from LPS-treated corneal epithelial cultures.[3]
In vivo Doxycycline (25 mg/day) prevents the structural deterioration of aortic elastin without decreasing the influx of inflammatory cells in Wistar rats. Doxycycline (25 mg/day) markedly suppresses increased aortic wall production of 92 kD gelatinase in Wistar rats. [4] Doxycycline reduces the activity of matrix metalloproteinase (MMP)-2 and MMP-9 in the arterial wall, and inhibits smooth muscle cell migration from media to intima by 77% at 4 days after balloon injury in rats. Doxycycline reduces the replication of smooth muscle cells in the intima in rats. [5]

Protocol (from reference)

RETURN POLICY
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SHIPPING AND STORAGE
Selleck products are transported at room temperature. If you receive the product at room temperature, please rest assured, the Selleck Quality Inspection Department has conducted experiments to verify that the normal temperature placement of one month will not affect the biological activity of powder products. After collecting, please store the product according to the requirements described in the datasheet. Most Selleck products are stable under the recommended conditions.

NOT FOR HUMAN, VETERINARY DIAGNOSTIC OR THERAPEUTIC USE.