background: ferroportin (fpn), a regulator of iron homeostasis is a conserved membrane protein that exports iron across the enterocytes, macrophages and hepatocytes into the blood circulation. fpn has also critical influence on survival of microorganisms whose growth is dependent upon iron, thus preparation of fpn is needed to study the role of iron in immunity and pathogenesis of micoorganisms...

E46(+) virus purified by limiting dilution and plaque isolation in AGMK cells consists of a mixture of hybrid and non-hybrid virus particles. Of 102 plaque isolates obtained in HEK cells, 98 contained no detectable hybrid virus, while 4 contained a small proportion of hybrid virus. Plaque isolates from AGMK cells uniformly induced SV40 neoantigen, but when these plaque isolates were plaqued in ...

Glutathione-dependent formaldehyde dehydrogenase (GFD) from Taiwanofungus camphorata plays important roles in formaldehyde detoxification and antioxidation. The enzyme is bifunctional. In addition to the GFD activity, it also functions as an effective S-nitrosoglutathione reductase (GSNOR) against nitrosative stress. We investigated the modulation of HEK (human embryonic kidney) 293T cells unde...

47 48 We have characterized the native voltage-dependent K + (K v) current in rabbit urethral smooth 49 muscle cells (RUSMC) and compared its pharmacological and biophysical properties with 50 K v 2.1 and K v 2.2 channels cloned from the rabbit urethra and stably expressed in HEK 293 51 cells (HEK Kv2.1 and HEK Kv2.2). RUSMC were perfused with Hanks' solution at 37°C and 52 studied using the pa...

The transcription of endogenous beta interferon mRNA was activated in human embryo kidney (HEK) cells infected with adenovirus type 12 (Ad12) but was activated only inefficiently or not at all in HEK cells infected with Ad5 and rc-1 (Ad5 dl312 containing the Ad12 E1A region). The analysis with Ad12 mutants showed that Ad12 E1B products, especially the 19K protein, were important for the express...

The human and murine genes for MRP9 (multidrug resistance-associated protein 9; ABCC12) yield many alternatively spliced RNAs. Using a panel of monoclonal antibodies, we detected full-length Mrp9 only in testicular germ cells and mouse sperm; we obtained no evidence for the existence of the truncated 100 kDa MRP9 protein reported previously. In contrast with other MRPs, neither murine Mrp9 nor ...

Arthritogenic alphaviruses are emerging arthropod-borne viruses that occasionally cause sporadic to global outbreaks all over the world. Many environmental factors including xenobiotics have been identified as capable of influencing the spread, the susceptibility and the outcome of viral infection. Among them cadmium is a toxic non-essential heavy metal and a prevalent environmental contaminant...

Four ammonium and imidazolium ionic liquids (ILs) have been synthesized and screened against the T98G cell line (brain cancer) and HEK normal cells. Treatment induced metabolic cell death (MTT), growth inhibition, clonogenic inhibition were studied as cellular response parameters. Treatment with ILs enhanced growth inhibition and cell death in a concentration dependent manner in both the T98G a...

Carbon nanotubes have widespread applications in multiple engineering disciplines. However, little is known about the toxicity or interaction of these particles with cells. Carbon nanotube films were grown using a microwave plasma enhanced chemical vapor deposition system. Human epidermal keratinocytes (HEK) were exposed to 0.1, 0.2, and 0.4 mg/ml of multi-walled carbon nanotubes (MWCNT) for 1,...