| Description: |
Tracheloside significantly decreases the activity of alkaline phosphatase (AP), an estrogen-inducible marker enzyme, with an IC(50) value of 0.31 microg/ml, a level of inhibition comparable to that of tamoxifen (IC(50) = 0.43 microg/ml).
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| Targets: |
Estrogen receptor | Progestogen receptor |
| In vitro: |
| Biosci Biotechnol Biochem. 2006 Nov;70(11):2783-5. | | An anti-estrogenic lignan glycoside, tracheloside, from seeds of Carthamus tinctorius.[Pubmed: 17090940] | The lignan glycoside, Tracheloside, was isolated from seeds of Carthamus tinctorius (Compositae) as an anti-estrogenic principle against cultured Ishikawa cells by employing a bioassay-linked HPLC-ELSD method.
METHODS AND RESULTS:
Tracheloside significantly decreased the activity of alkaline phosphatase (AP), an estrogen-inducible marker enzyme, with an IC(50) value of 0.31 microg/ml, a level of inhibition comparable to that of tamoxifen (IC(50) = 0.43 microg/ml). | | Evid Based Complement Alternat Med . 2018 Jul 26;2018:4580627. | | Promotion of Keratinocyte Proliferation by Tracheloside through ERK1/2 Stimulation[Pubmed: 30147732] | | Abstract
Cell migration and proliferation are important for proper wound healing after skin injury. Recent studies have shown that compounds from plants could promote cell migration and proliferation. Tracheloside, which is a plant lignan, has been found to promote the growth of HaCaT cells over 40% compared to other compounds tested based on a cell proliferation assay. An in vitro scratch assay confirmed the healing activity of Tracheloside (more than 2-fold increased healing activity after 24 hours of treatment compared with the control) and revealed that this activity is better than that of allantoin (1.2-fold increased after 24 hours of treatment compared with the control), a positive control. With western blot results, wound healing with Tracheloside occurred through the phosphorylation of ERK1/2. Therefore, Tracheloside is a good candidate to promote wound healing and could be developed as a therapeutic agent for wound treatment or used as a leading compound with higher activity. |
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| In vivo: |
| Cancer Lett. 2003 Oct 28;200(2):133-9. | | Lack of significant inhibitory effects of a plant lignan tracheloside on 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP)-induced mammary carcinogenesis in female Sprague-Dawley rats.[Pubmed: 14568166] | Tracheloside, one of the plant lignans which can be extracted from the debris after safflower oil is produced from the seeds of Carthamus tinctorious, is an analogue of another plant lignan, arctiin, the side-chain C-2 of the five-membered ring being changed from a hydrogen to a hydroxyl group. We have already demonstrated that arctiin has chemopreventive effect on mammary carcinogenesis. Therefore, chemopreventive effects of Tracheloside on the initiation or post-initiation period of 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP)-induced mammary carcinogenesis in female rats were examined.
METHODS AND RESULTS:
For initiation, female Sprague-Dawley (SD) rats at the 6 weeks of age were given intragastric administrations of 100 mg/kg body weight of PhIP once a week for 8 weeks. The animals were treated with 0.2 or 0.02% Tracheloside during or after this carcinogen exposure. Control rats were fed basal diet with PhIP initiation or 0.2% Tracheloside or basal diet alone without initiation throughout the experimental period. All surviving animals were necropsied at the week 52 of administration. There were no clear treatment-related changes with statistical significance in all parameters for mammary carcinomas measured in this experiment.
CONCLUSIONS:
These results indicate that Tracheloside may not exert significant effects on PhIP-induced mammary carcinogenesis at least under the present experiment condition. |
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