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  • Title: Sann-Joong-Kuey-Jian-Tang decreases the protein expression of Mcl‑1 and TCTP and increases that of TNF-α and Bax in BxPC‑3 pancreatic carcinoma cells.
    Author: Chien SY, Kuo SJ, Chen DR, Su CC.
    Journal: Int J Mol Med; 2013 Jul; 32(1):85-92. PubMed ID: 23652631.
    Abstract:
    Sann-Joong-Kuey-Jian-Tang (SJKJT), a traditional Chinese medicinal prescription, has been used for the treatment of lymphadenopathy and solid tumors, and has shown therapeutic potential in several human malignant tumor cell lines. However, the efficacy and molecular mechanisms of action of SJKJT in human pancreatic cancer have not yet been elucidated. In the present study, we evaluated the cytotoxic effects of SJKJT on BxPC-3 human pancreatic carcinoma cells by MTT assay. The protein expression levels of myeloid cell leukemia 1 protein (Mcl-1), translationally controlled tumor protein (TCTP), tumor necrosis factor-α (TNF‑α), caspase-8, caspase-3, Bax and Bcl-2 family in the BxPC-3 cells were measured by western blot analysis. The cell cycle was analyzed by flow cytometry. The protein expression of caspase-3 was also detected by immunocytochemistry (ICC). The results revealed that SJKJT inhibited the proliferation of BxPC-3 cells in a time- and dose-dependent manner. The protein expression levels of TNF-α, caspase-8, caspase-3 and Bax increased in the BxPC-3 cells treated with SJKJT; however, the levels of Mcl-1, TCTP and Bcl-xL decreased. The results also demonstrated that SJKJT increased the percentage of BxPC-3 cells in the sub-G1 phase. In addition, ICC staining indicated that the protein expression of caspase-3 was upregulated in the BxPC-3 cells treated with SJKJT. These findings indicate that SJKJT inhibits the proliferation of BxPC-3 cells through the extrinsic and intrinsic pathway, inducing apoptosis in vitro. Our study, using BxPC-3 human pancreatic cancer cells, demonstrates that SJKJT has potential as a chemotherapeutic agent for the treatment of pancreatic cancer. Further sutdies are warranted to fully elucidate its mechanisms of action.
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