Quinovic acid
Quinovic acid shows some anti-tumour activities, quinovic acid glycosides have a potent inhibitory effect on the growth of human bladder cancer cell lines by inducing apoptosis through modulation of NF-κB.
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Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to
24 months(2-8C).
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
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The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Quinovic acid glycosides purified fraction from Uncaria tomentosa induces cell death by apoptosis in the T24 human bladder cancer cell line.[Pubmed:
24607820]
Bladder cancer is the second most prevalent malignancy in the genitourinary tract and remains a therapeutic challenge. In the search for new treatments, researchers have attempted to find compounds with low toxicity. With this goal in mind, Uncaria tomentosa is noteworthy because the bark and root of this species are widely used in traditional medicine and in adjuvant therapy for the treatment of numerous diseases.
METHODS AND RESULTS:
The objective of this study was to investigate the antitumor effect of one purified bioactive fraction of U.tomentosa bark on cell proliferation in two human bladder cancer cell lines, T24 and RT4. Quinovic acid glycosides purified fraction (QAPF) of U.tomentosa decreased the growth and viability of both T24 and RT4 cell lines. In T24 cells, QAPF induced apoptosis by activating caspase-3 and NF-κB. Further study showed that this fraction does not induce cell cycle arrest and does not alter PTEN and ERK levels.
CONCLUSIONS:
In conclusion, we demonstrated that QAPF of U.tomentosa has a potent inhibitory effect on the growth of human bladder cancer cell lines by inducing apoptosis through modulation of NF-κB, and we suggest that QAPF may become a potential therapeutic agent for the prevention and/or treatment of this cancer.
J Asian Nat Prod Res. 2007 Sep-Dec;9(6-8):505-10.
27-nor-triterpenoid glycosides from the barks of Zygophyllum fabago L.[Pubmed:
17885836 ]
METHODS AND RESULTS:
From the bark of Zygophyllum fabago L., a new 27-nor-triterpenoid glycoside, 3-O-beta-D-glucopyranosyl-pyrocincholate (1), together with five known compounds, 3-O-6-deoxy-beta-D-glucopyranosyl-pyrocincholate (2), Quinovic acid (3), 3-O-6-deoxy-beta-D-glucopyranosyl-Quinovic acid (4), 3-O-beta-D-glucopyranosyl- Quinovic acid (5) and 3-O-6-deoxy-beta-D-glucopyranosyl-cincholic acid (6), were isolated and their structures elucidated on the basis of spectroscopic data.
CONCLUSIONS:
Compounds 1, 2 and 3 showed some anti-tumour activities by MTT assay.
