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ORIGINAL ARTICLE
Year : 2020  |  Volume : 16  |  Issue : 69  |  Page : 409-415

A new method for purifying Brazilin from lignum sappan – Cytotoxic and anti-proliferative effects in cell lines and improved survival in mice bearing urinary bladder carcinoma


1 Affiliated Cancer Hospital, Shanxi Medical University, Taiyuan, China
2 Research Institute of Applied Biology, Shanxi University, Taiyuan, China

Correspondence Address:
Huanhu Zhang
Affiliated Cancer Hospital, Shanxi Medical University, Taiyuan
China
Tingting Zhang
Research Institute of Applied Biology, Shanxi University, Taiyuan
China
Xihua Yang
Affiliated Cancer Hospital, Shanxi Medical University, Taiyuan
China
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/pm.pm_308_19

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Background: Urinary bladder carcinoma is characterized by high post-operative recurrence rates. Sufu'ning lotion, prepared with Lignum Sappan, can reduce the recurrence of urinary bladder carcinoma. Objectives: The present study describes a methodology for extracting and obtaining high purity brazilin from Lignum sappan and evaluates its effects on urinary bladder carcinoma, in vitro and in vivo . Materials and Methods: The brazilin was extracted from Lignum sappan, purified and identified. The purified brazilin was assessed in vitro for its effects on tumor cell viability and growth using human (T24) and mouse urinary bladder (BTT) cancer cell lines. The role of brazilin in the inhibition of the cell cycle was determined by flow cytometry. The in vivo activity of brazilin was assessed based on the survival of tumor-bearing mice. Results: Brazilin was purified of 99.10% purity and was bioactive as it significantly (P < 0.05) inhibited the growth of T24 and BTT cells. The IC50was 10.08 μg/ml for T24 cells and 8.76 μg/ml for BTT cells after 48 h of treatment. Brazilin blocked the cell cycle progression in the G2 phase. Brazilin (100, 200 and 300 mg/kg) significantly (P < 0.05) increased the survival of BTT tumor-bearing T739 mice and T24 tumor-bearing BALB/c nude mice. Conclusion: The methodology described for the extraction of brazilin from Lignum sappan yields high purity and bioactive brazilin. The extracted brazilin exerts marked inhibitory effects on urinary bladder cancer cells in vitro and in vivo .


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