background: the different growth mechanism and biologic behavior of the odontogenic keratocyst(okc) compared to other odontogenic cysts might be related to the proliferating capacity of itsepithelium. in this study, the aim was to evaluate and compare the distribution and staining intensityof p16 and cyclin d1 in okc and unicystic ameloblastoma (ua). materials and methods: in this descriptive a...

Monitoring cancer and aging in vivo remains experimentally challenging. Here, we describe a luciferase knockin mouse (p16(LUC)), which faithfully reports expression of p16(INK4a), a tumor suppressor and aging biomarker. Lifelong assessment of luminescence in p16(+/LUC) mice revealed an exponential increase with aging, which was highly variable in a cohort of contemporaneously housed, syngeneic ...

Expression of p16(INK4a) is elevated during ageing and replicative senescence. Here, we report the presence of an instability determinant within the 3'-untranslated region (UTR) of the p16 messenger RNA in WI-38 human diploid fibroblasts. The p16 3'UTR was found to be a specific target of AUF1, an RNA-binding protein implicated in promoting mRNA decay. Both AUF1 levels and AUF1-p16 mRNA associa...

to a variety of cellular proteins such as NF-␬B and I␬B (Hirai et al., 1994; Suzuki et al., 1996). Figure 1 shows the primary sequence of p16, along with that of other proteins in the p16 family: p15, p18, and p19, both human and murine. P16 is comprised mainly of four ankyrin repeats, a structural motif about Campus Chemical Instrument Center 33 amino acids long present in a variety of protein...

Studies have suggested that p16(ink4a) may be a surrogate biomarker for the diagnosis of cervical cancer; however, the function of p16(ink4a) in human cervical cancer cells remains largely unknown. Therefore, in this study, we aimed to investigate the role of p16(ink4a) in human cervical cancer cells. Immunocytochemistry was used to examine invasive squamous cell carcinoma and its precancerous ...

There is increasing evidence for a role of somatic cellular senescence in physiological aging but also in injury and disease. Cell cycle inhibitor p16 is the key mediator for stress and aberrant signaling induced senescence. Here we report that elevated blood pressure markedly induced p16 expression in rat kidneys and hearts, as well as in human kidneys. In kidneys from deoxycorticosterone acet...

The tumor suppressor p16 is a negative regulator of the cell cycle, commonly believed to act in the nucleus. We recently found that p16 protein is expressed in the cytoplasm of gastric cancer cells, concomitantly with anion exchanger 1 (AE1). The aim of this study was to analyze the significance of cytoplasmic p16 and its relationship to AE1 in the progression of gastric cancer. Expression of p...

There is increasing evidence for a role of somatic cellular senescence in physiological aging but also in injury and disease. Cell cycle inhibitor p16(INK4a) is the key mediator for stress and aberrant signaling induced senescence. Here we report that elevated blood pressure markedly induced p16(INK4a) expression in rat kidneys and hearts, as well as in human kidneys. In kidneys from deoxycorti...