Article Publish Status: FREE
Abstract Title:

. protects against UVB induced apoptosis in human epidermal keratinocytes.

Abstract Source:

Biochem Biophys Rep. 2018 Mar ;13:109-115. Epub 2018 Jan 28. PMID: 29556565

Abstract Author(s):

Umar Muzaffer, V I Paul, Nagarajan Rajendra Prasad, Ramasamy Karthikeyan

Article Affiliation:

Umar Muzaffer


The present study was aimed to investigate the photoprotective effect of the male flower ofL. (MEJR) against ultraviolet-B induced apoptosis in human skin cells. Human skin epidermal keratinocytes were pretreated with the MEJR (80 µg/ml, has been selected after MTT assay), prior to 30 min UVB-irradiation at a dose of 20 mJ/cm. Mitochondrial membrane potential was evaluated using Rhodamine-123 staining; the % apoptosis by Hoechst staining and acridine orange staining; DNA damage was measured by comet assay. The levels of p53, Bax, Bcl-xL, Bcl-2, Cytochrome c, Caspase-9 and Caspase-3 expression in HaCaT cells were analyzed by western blotting and RT-PCR. Pretreatment with MEJR 80 µg/ml prior to UVB-irradiation significantly prevents apoptotic characteristics, DNA damage and loss of mitochondrial membrane potential. Thus, MEJR protects UVB-mediated human skin cells, by modulating the expression of apoptotic markers and UVB-induced DNA damage in HaCaT cells.

Study Type : In Vitro Study

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