The isoprenoid pathway in FRTL-5 thyroid cells was found to be deeply altered on transformation with v-K-ras. A dramatic overall reduction of protein prenylation was found in v-K-ras-transformed cells in comparison with the parent FRTL-5 cells, as shown by labeling cells with [3H]mevalonic acid. This phenomenon was accompanied by a relative increase of p21(ras) farnesylation and by a decrease o...

medullary thyroid carcinoma (mtc) occurs in both sporadic (75%) and hereditary (25%) forms. the missense mutations of the rearranged during transfection (ret) proto-oncogene in mtc development have been well demonstrated. the aim of this study was to investigate frequency of g691s/s904s haplotype in mtc patients and their relatives.in this research 293 participants were studied, including 181 p...

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...

abstract :  reovirus (respiratory enteric orphan virus), a naturally occurring benign human pathogen, has an inherent ability to target transformed and cancerous cells and cause their lysis, while leaving non-transformed cells relatively unaffected.  the efficiency of this innate oncolytic activity of reovirus correlates with expression of the ras oncogene.  cells expressing activated ras and t...

An i-motif is a non-canonical DNA structure implicated in gene regulation and linked to cancers. The C-rich strand of the HRAS oncogene, 5′-CGCCCGTGCCCTGCGCCCGCAACCCGA-3′ (herein referred as iHRAS), forms an vitro but its exact was unknown. member RAS proto-oncogene family. About 19 % US cancer patients carry mutations genes. We solved iHRAS at 1.77 Å resolution. reveals that folds into double ...

In this issue of the JCI, Ciampi et al. report the identification of a novel oncogene in patients affected by radiation-associated thyroid papillary carcinomas. This oncogene derives from a paracentric inversion of the long arm of chromosome 7, which results in an in-frame fusion of the N-terminus of the A-kinase anchor protein 9 (AKAP9) gene with the C-terminal catalytic domain (exons 9-18) of...

Oncogene inactivation in both clinical targeted therapies and conditional transgenic mouse cancer models can induce significant tumor regression associated with the robust induction of apoptosis. Here we report that in MYC-, RAS-, and BCR-ABL-induced acute lymphoblastic leukemia (ALL), apoptosis upon oncogene inactivation is mediated by the same pro-apoptotic protein, BIM. The induction of BIMi...

Ischemia/reperfusion injury (IRI), a participant in acute kidney (AKI), can occur as series of pathological processes such inflammation. Linarin (LIN) has been widely used for different diseases. To confirm the anti-inflammatory value and relevant mechanism LIN during IRI, vivo vitro models were established. or dissolvent was given, histologic analysis, quantitative (q)RT-PCR, serum creatinine ...