The human homologue of the murine double minute 2 gene (MDM2), a p53-binding protein which may act as a regulator of p53 protein function, has recently heen cloned. Initial studies of this gene in a variety of human tumors have shown frequent gene amplification in most types of sarcomas, including osteosarcomas. Amplification of the MIÃŒM2 gene may produce a functional inactivation of the p53 p...

The human homologue of the murine double minute 2 gene (MDM2), a p53-binding protein which may act as a regulator of p53 protein function, has recently heen cloned. Initial studies of this gene in a variety of human tumors have shown frequent gene amplification in most types of sarcomas, including osteosarcomas. Amplification of the MIÃŒM2 gene may produce a functional inactivation of the p53 p...

We took a rather unique approach to investigate the conservation of gene expression of prolamin storage protein genes across two different subfamilies of the Poaceae. We took advantage of oat plants carrying single maize chromosomes in different cultivars, called oat-maize addition (OMA) lines, which permitted us to determine whether regulation of gene expression was conserved between the two s...

Background: Listeria is a Gram-positive, non-spore forming, facultative anaerobic intracellular bacterium. The most important pathogens in mammals include Listeria monocytogenes and Listeria ivanovii. The former generally causes disease and death in both humans and animals while the latter performs sporadically and primarily causes illness in ruminant...

Background: Taq DNA polymerase is a very important enzyme for molecular biological studies such as DNA amplification and DNA sequencing by the PCR. It is a standard enzyme that is used in 90% of molecular biology labs today. The aim of this study was to produce Taq DNA polymerase enzyme in E. coli by a reliable, practical, simple and low cost method. Materials and Methods: In this study, the T...

Blinatumomab, the bispecific T cell engager, has been demonstrated as the most successful BsAb to date. Throughout the past decade, vector design has great importance for the expression of monoclonal antibody in Chinese hamster ovary (CHO) cells. It has been indicated that expression plasmids based on the elongation factor-1 alpha (EF-1 alpha) gene and DHFR selection marker can be highly effect...

Liver tumors arise in rats fed a choline-devoid diet without added carcinogens. We found amplification of the c-myc gene in 13/13 of these tumors. The amplification ranged from 2- to 70-fold and was accompanied by an increase in c-myc gene expression. Amplification of c-myc was larger in tumors of rats fed a choline-devoid diet followed by a choline-supplemented diet than in tumors from animals...

To determine the value of epidermal growth factor receptor (EGFR) gene amplification as a biological prognostic indicator in patients with esophageal squamous cell carcinoma, the EGFR gene amplification was determined by slot-blot hybridization using DNA extracted from formalinfixed and paraffin-embedded blocks of tissues from 107 patients with esophageal squamous cell carcinoma who had undergo...