کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1920035 | 1535690 | 2006 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Identification of differentially expressed proteins in senescent human embryonic fibroblasts Identification of differentially expressed proteins in senescent human embryonic fibroblasts](/preview/png/1920035.png)
Normal human fibroblasts undergo a limited number of divisions in culture, a process known as replicative senescence (RS). Although several senescence-specific genes have been identified, analysis at the level of protein expression can provide additional insights into the mechanisms that regulate RS. We have performed a proteomic comparison between young and replicative senescent human embryonic WI-38 fibroblasts and we have identified 13 proteins, which are differentially expressed in senescent cells. Some of the identified proteins are components of the cellular cytoskeleton, while others are implicated in key cellular functions including metabolism and energy production, Ca2+ signalling, nucleo-cytoplasmic trafficking and telomerase activity regulation. In summary, our analysis contributes to the list of senescence-associated proteins by identifying new biomarkers and provides novel information on functional protein networks that are perturbed during replicative senescence of human fibroblast cultures.
Journal: Mechanisms of Ageing and Development - Volume 127, Issue 1, January 2006, Pages 88–92