1. Immunology/Inflammation
    Anti-infection
  2. COX
    Parasite
  3. Columbin

Columbin 

Cat. No.: HY-N0389 Purity: 98.86%
Handling Instructions

Columbin is an orally active diterpenoid furanolactone from Calumbae radix, has anti-inflammatory and anti-trypanosomal effects. Columbin selectively inhibits COX-2 (EC50=53.1 μM) over COX-1 (EC50=327 μM).

For research use only. We do not sell to patients.

Columbin Chemical Structure

Columbin Chemical Structure

CAS No. : 546-97-4

Size Price Stock Quantity
10 mM * 1 mL in DMSO USD 66 In-stock
Estimated Time of Arrival: December 31
5 mg USD 60 In-stock
Estimated Time of Arrival: December 31
10 mg USD 96 In-stock
Estimated Time of Arrival: December 31
25 mg USD 192 In-stock
Estimated Time of Arrival: December 31
50 mg USD 336 In-stock
Estimated Time of Arrival: December 31
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Based on 1 publication(s) in Google Scholar

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Description

Columbin is an orally active diterpenoid furanolactone from Calumbae radix, has anti-inflammatory and anti-trypanosomal effects. Columbin selectively inhibits COX-2 (EC50=53.1 μM) over COX-1 (EC50=327 μM)[1][2].

IC50 & Target[1]

COX-2

53.1 μM (EC50)

COX-1

327 μM (EC50)

In Vitro

Treatment with columbin or l-NAME inhibits LPS/IFN-γ-induced NO production without affecting the viability of RAW264.7. Pre-treatment of stimulated cells with columbin does not inhibit the translocation of NF-κB to the nucleus in LPS-stimulated cells. COX-1 and COX-2 inhibitory activities of columbin are 63.7±6.4% and 18.8±1.5% inhibition at 100μM, respectively. The interaction of columbin with Tyr385 and Arg120 signifies its higher activity in COX-2, as Tyr385 is reported to be involved in the abstraction of hydrogen from C-13 of arachidonate, and Arg120 is critical for high affinity arachidonate binding[1].

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

In Vivo

Columbin inhibits oedema formation in mice paw. At doses of 300 mg/kg and 700 mg/kg, columbin inhibits inflammation from 0 to 5 h and the results are comparable to that of aspirin as a standard anti-inflammatory drug. The inhibitory effect of columbin on carrageenan induced paw oedema in mice may be due to the suppression of the release of mediators responsible for inflammation including prostaglandin[1]. Columbin is poorly bioavailable (2.8% p.o. and 14% i.p.) in rats, but its transport is rapid across the Caco-2 cell monolayers, suggesting that extensive first-pass metabolism in the liver is the likely reason for its poor bioavailability[2].

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

Molecular Weight

358.39

Formula

C₂₀H₂₂O₆

CAS No.

546-97-4

SMILES

O=C1[[email protected]](C=C2)(O)[[email protected]@](CC3)(C)[[email protected]@]([[email protected]@](C[[email protected]@H](C4=COC=C4)O5)(C)[[email protected]]3([H])C5=O)([H])[[email protected]]2([H])O1

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : ≥ 100 mg/mL (279.03 mM)

*"≥" means soluble, but saturation unknown.

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 2.7903 mL 13.9513 mL 27.9026 mL
5 mM 0.5581 mL 2.7903 mL 5.5805 mL
10 mM 0.2790 mL 1.3951 mL 2.7903 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% saline

    Solubility: ≥ 2.5 mg/mL (6.98 mM); Clear solution

  • 2.

    Add each solvent one by one:  10% DMSO    90% corn oil

    Solubility: ≥ 2.5 mg/mL (6.98 mM); Clear solution

*All of the co-solvents are provided by MCE.
References
Animal Administration
[1][2]

Rats: Male Wistar rats are treated as following: i.v. injection of columbin in EtOH and PEG-300 (1:1) is administrated through tail vein at dose of 20 mg/kg. Intraperitoneal (i.p.) injection of columbin in EtOH and PEG-300 (1:1) is administrated at dose of 20 mg/kg. An oral gavage of columbin suspended in oral suspension vehicle is given to rats at dose of 50 mg/kg. Blood samples (50-100 μL) are collected by snipping the tail into heparinized tubes at 0, 5, 15, 30, 45, 60, 120, 240, 360, 480 and 1440 min for i.v. administration, or at 0, 15, 30, 60,120, 180, 240, 360, 480, 1440 min for oral dosing or i.p. injection. The blood samples are stored at −20°C until analysis[2].

Mice: Male Balb/c mice (n=60) are randomly divided into six groups. Columbin is intra-peritoneally administered to mice at the dose of 30, 100, 300 and 700 mg/kg. Aspirin, an anti-inflammatory drug, is used as a positive control. To induce acute phase inflammation in paw, rats are injected subcutaneously into the right hind paw with a 1% solution of carrageenan dissolved in saline 30 min after vehicle or columbin treatment. The paw volumes are measured up to 5 h after the injection at intervals of 1 h. Paw volume is measured with a plethysmometer immediately prior to the injection of carrageenan and thereafter at an interval of 1 h for a period of 5 h[1].

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

References
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Keywords:

ColumbinCOXParasiteCyclooxygenaseTrypanosoma bruceianti-inflammatoryditerpenoidfuranolactoneanti-trypanosomalCOX-1Inhibitorinhibitorinhibit

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