Sivanesan D, Begum V Hazeena
Unit of Biochemistry, Department of Siddha Medicine, Faculty of Science, Tamil University, Thanjavur-613 005, Tamil Nadu, India.
Indian J Biochem Biophys. 2007 Dec;44(6):477-80.
The modulation of glucose-metabolizing enzymes activities play a vital role in the depletion of energy metabolism and leads to inhibition of cancer growth. In the present study, the effect of Gynandropsis gynandra L. extract on aflatoxin B1 (AFB1)-induced hepatocellular carcinoma (HCC) was studied on glucose-metabolizing enzymes in rats. A significant increase (p < 0.001) in the activities of the key glycolytic enzymes viz., hexokinase and phosphoglucoisomerase, with a significant decrease (p < 0.001) in the gluconeogenic enzymes glucose-6-phosphatase and fructose-1,6-bisphosphatase were observed in HCC-bearing rats, when compared with the control. Administration of G. gynandra extract caused a significant decrease in the activities of glycolytic enzymes and an increase in the gluconeogenic enzymes activities to near normal values. Thus, findings suggest the G. gynandra extract has a definite modulating role on the key enzymes of glucose metabolism in HCC. The modulatory effect may be due to the phytoactive constituents present in the extract of G. gynandra.
葡萄糖代谢酶活性的调节在能量代谢耗竭中起着至关重要的作用,并导致癌症生长受到抑制。在本研究中,研究了白花菜提取物对黄曲霉毒素B1(AFB1)诱导的大鼠肝细胞癌(HCC)中葡萄糖代谢酶的影响。与对照组相比,荷HCC大鼠的关键糖酵解酶即己糖激酶和磷酸葡萄糖异构酶的活性显著增加(p < 0.001),而糖异生酶葡萄糖-6-磷酸酶和果糖-1,6-二磷酸酶的活性显著降低(p < 0.001)。给予白花菜提取物导致糖酵解酶活性显著降低,糖异生酶活性增加至接近正常水平。因此,研究结果表明白花菜提取物对HCC中葡萄糖代谢的关键酶具有明确的调节作用。这种调节作用可能归因于白花菜提取物中存在的植物活性成分。