The carcinogenicity of nickel compounds has been shown in numerous epidemiological and animal studies. Carcinogenesis is generally considered as a multistep accumulation of genetic alterations. Nickel, however, being highly carcinogenic is only a weak mutagen. We hypothesize that nickel may act by modulating signaling pathways, and subsequently by reprogramming transcription factors. Insoluble ...

The tumor suppressor p53 binding protein 1 (53BP1) binds to the DNA-binding domain of p53 and enhances p53-mediated transcriptional activation. 53BP1 contains two breast cancer susceptibility gene 1 COOH terminus (BRCT) motifs, which are present in several proteins involved in DNA repair and/or DNA damage-signaling pathways. Thus, we investigated the potential role of 53BP1 in DNA damage-signal...

Nasopharyngeal carcinoma (NPC) is commonly diagnosed in southern Asia. MicroRNAs (miRNAs) are small non-coding RNAs that regulate gene expression post-transcriptionally. Increasing evidence suggests that the dysregulation of miRNAs promotes NPC tumorigenesis. Epstein-Barr virus (EBV) infection and EBV-encoded miRNAs are also associated with the development of NPC. However, it is unclear how cel...

Domestication can be defined as the artificial selection in animals to achieve morphological, physiological, and developmental conformity human needs, with aim of improving various limitations species under a feeding environment. The future sustainability aquaculture may rely partly on availability numerous domesticated fish species. However, underlying adaptive mechanisms that result domestica...

Despite modern achievements in therapy of malignant melanomas new treatment strategies are welcomed in clinics for survival of patients. Now it is supposed that personalized molecular therapies for each patient are needed concerning a specificity of molecular alterations in patient's tumors. In human melanoma, Notch signaling interacts with other pathways, including MAPK, PI3K-AKT, NF-kB, and p...

Although the interaction of matrix proteins with integrins is known to initiate signaling pathways that are essential for cell survival, a role for tumor suppressors in the regulation of these pathways has not been established. We demonstrate here that p53 can inhibit the survival function of integrins by inducing the caspase-dependent cleavage and inactivation of the serine/threonine kinase AK...

As a core scaffold protein, Cullin7 (Cul7) forms Skp1-Cullin-F-box (SCF) E3 ubiquitin ligase complexes with the regulator of cullins-1 (ROC1), S-phase kinase associated protein 1 (Skp1) and F-Box, WD repeat domain containing 8 (Fbxw8). Alternatively, Cul7 can form CRL7SMU1 complex suppressor Mec-8 Unc-52 homolog (SMU1), damage-specific DNA binding (DDB1), ring finger 40 (RNF40), to promote cell...

The tumor suppressor p53 is often referred to as "the guardian of the genome" because of its central role in the cellular response to oncogenic stress and prevention of tumor development. Mutations of p53 in acute myeloid leukemia (AML) are rare but resistance to chemotherapy has been reported because of the deregulation of the p53 signaling and differentiation pathways. It is known that the in...

Mechanical microenvironments, such as extracellular matrix stiffness and strain, have crucial roles in cancer progression. Cells sense their microenvironments with mechanosensing biomolecules, which is accompanied by the modulation of actin cytoskeleton structures, and the signals are subsequently transduced downstream as biochemical signals. The tumor suppressors p53 and retinoblastoma protein...

Development of effective anti-cancer therapies continues to be a challenge due to genetic instability that promotes intra-tumoral molecular heterogeneity and subsequent adaptation to therapy. In this review, we briefly discuss the history of the p53 family (p53/p63/p73) and how regulatory circuits affect its function in promoting apoptotic cell death. In addition, we provide perspective on how ...