DON WHITLEY SCIENTIFIC – THE LEADING INTERNATIONAL SUPPLIER TO THE MICROBIOLOGY AND TISSUE CULTURE INDUSTRIES


Contact Us +44 (0) 1274 595728 sales@dwscientific.co.uk

Follow Don Whitley Scientific

Posts Tagged ‘H45’

Hypoxystation range video

New Whitley Hypoxystation Video Launched

Don Whitley Scientific are proud to present a new video that showcases our wide range of Whitley Hypoxic Workstations. The video also features comments from renowned researchers, explaining how a Whitley Hypoxystation benefits their research.

The video is another addition to a growing YouTube channel which features similar videos showcasing our wide product range and company values, including anaerobic and microaerobic workstations, customer testimonials, an introduction to Don Whitley Scientific and the level of service on offer for our customers.

 

 


Researchers featured in this video
Dr Karen Wright – Dr Karen Wright uses a Whitley H35 Hypoxystation in the cell culture laboratory at Lancaster University to expedite a component of her research, namely culturing human gut cells at low physiological levels of oxygen. – Testimonial in full

Dr Michael Cross – Dr Cross and his group use their H35 HEPA Hypoxystation to test cardiovascular drug toxicity in a cardiac spheroid model under physiologically relevant oxygen tensions and also periods of extreme hypoxia/ischemia. – Testimonial in full

 

Click here to explore the full range of Whitley Hypoxystations

 



Contact our sales team for more information on 01274 595728 or email sales@dwscientific.co.uk. For the full range of Whitley products, visit our website at www.dwscientific.co.uk


Clostridium difficile studies can be done in a Whitley Workstation

Hallmarks of Cancer: Sustaining Growth and Resisting Cell Death

In part four of our mini-series describing “Hypoxia and the Hallmarks of Cancer”, we look more closely at how researchers are using the Hypoxystation to delineate the Hallmarks Sustaining Growth and Resisting Cell Death.

 

 

 

 

 

Hallmarks of Cancer

Resisting Cell Death

The ability of cells to resist cell death under hypoxic conditions is central to the progression of cancer and the acquisition of resistance to chemotherapy so frequently encountered in tumors. Hypoxia in the tumor microenvironment exerts selective pressure favoring cells that have lost the functionality of apoptosis genes and can expand uncontrollably.  Hypoxia also contributes to survival by inducing autophagy, in a pathway involving HIF-1, beclin, BNIP3 and BNIP3L, in which cellular autophagy acts to recycle cellular organelles, satisfy metabolic demand and improve hypoxic tolerance.  HIF-1 mediates cell-cycle retardation and arrest, causing hypoxic tumor cells to become resistant to radiotherapies. NF-κB, through its effects on myriad transcription factors, for example through inhibition of cell death signalling, is activated by hypoxia and reactive oxygen species, and also promotes cell survival.

Sustaining Growth

Cancer is essentially based on the cells’ inability to “stop” when suppressors signal an end to growth, and the compunction to “go” despite a lack of bonafide growth signals. Hypoxia in the context of cancer, in precipitating genomic instability and mutation, results in numerous inactive tumor suppressor genes and activated growth factor genes, such that the combination of constitutive proliferative signaling and mutated cancer genes leads to sustained growth. HIF and NF-κB regulated pathways involving Notch, mTOR, WNT11, CAIX, and IGF-1, among many others, contribute to sustained growth in cancer as regulation of proliferation derails. Induced by hypoxia-regulated proteins, anabolic pathways for nucleotide and lipid synthesis are ramped up and enable the rapid proliferation typical of cancer.

SustainingGrowthSliceLITERATURE: