AIM:To observe the expression pattern of Cyclin D1 in human lens epithelial cells(HLECs)after traumatic stimulation in high-glucose cultureMETHODS: The activity of HLECs was detected by MTT method after incubate with differernt concentration glucose for 24h in vitro to determine the optimal glucose concentration. qRT-PCR and Western blot were used to detect the high glucose pretreatment group and the non-high glucose pretreatment group. The expression of Cyclin D1 in HLECs at different time

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... ts after traumatic stimulation was detected.RESULTS: The viability of HLECs were increased when treatment with low concentration glucose, but the concentration should not exceed 25.5mmol/L, or it will inhibit the activity of HLECs; The reasult of high glucose pretreatment group reveal that the expression of Cyclin D1 is down-regulated in a time-dependent manner within a certain time range. While the expression of Cyclin D1 was irregular in the non-pretreatment group, it was increased at the time point of 12h and 48h. The score treatment can up-regulate the expression of Cyclin D1 in HLECs in a certain degreen.CONCLUSION: The effects of glucose on HLECs activity and Cyclin D1 experssion are irrugular. Trauma treatment can stimulate the expression of Cyclin D1 in HLECs to some extent.