Scientists develope a new model of artificial canine skinMay 11, 2007The cell culture will allow research into skin biology and pathology without the need to use live animals Researchers at UNIVET, a spin-off of the Universitat Autònoma de Barcelona, in cooperation with the animal nutrition company Affinity Petcare, have developed an artificial cellular model which faithfully reproduces the characteristics of dog's skin and which will allow, therefore, the carrying out of various lines of research related to skin biology and pathology without the need to use live animals. The basic structure of skin consists of an external layer, the epidermis, and an internal layer, the dermis, separated by a basal membrane. A study of the interactions between the cell populations of the various layers is of vital importance for skin biology, but these interactions cannot be investigated adequately by means of conventional cell cultures. Researchers at the UAB and UNIVET, in cooperation with Affinity Petcare, have developed an artificial canine skin model, very similar to normal skin, which is useful for research and which represents an alternative to the use of animals in research. The model allows the study of those illnesses which most often affect dogs' skin without the need to use animals. To develop this model, cells from the epidermis (keratocytes) and the dermis (fibroblasts) from samples of healthy dogs were used. The dermis cells, inserted into a collagen marix (a very common protein in skin and joints), were used as a support for the epidermis cells, which were grown on its surface and were kept in growth conditions exposed to air. The cells proliferated forming the various layers of the epidermis. The model develops a morphological structure similar to that of canine skin. Additionally, the expression of the dermis and epidermis proteins follows the same pattern of expression as that of normal canine skin, even forming a basal membrane, which also maintains the characteristics of conventional skin. Universitat Autonoma de Barcelona |
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| Related Artificial Skin Current Events and Artificial Skin News Articles Automated tissue engineering on demand Skin from a factory - this has long been the dream of pharmacologists, chemists and doctors. Research has an urgent need for large quantities of 'skin models', which can be used to determine if products such as creams and soaps, cleaning agents, medicines and adhesive bandages are compatible with skin, or if they instead will lead to irritation or allergic reactions for the consumer. Summer update: Melanoma research progress suggests optimism for future cures In a nation of sun-worshipers, melanoma is on the rise. Although doctors warn their patients to slather on sunscreen and seek cover in the shade, messages about sun safety still compete for the public's attention with magazine covers promoting that supposedly "healthy" tan look. University of Manchester makes made-to-measure skin and bones a reality using inkjet printers Made-to-measure skin and bones, which could be used to treat burn victims or patients who have suffered severe disfigurements, may soon be a reality using inkjets which can print human cells. Scientists at The University of Manchester have developed the breakthrough technology which will allow tailor-made tissues and bones to be grown, simply by inputting their dimensions into a computer. Professor Brian Derby, Head of the Ink-Jet Printing of Human Cells Project research team, said: "It is difficult for a surgeon to reconstruct any complex disfiguring of the face using CT scans, but with this technology we are able to build a fragment which will fit exactly. We can place cells in any High-Tech for sausage casings Sausage is an extremely popular form of meat. Not only Germans each eat an average of 70 grams of sausage every day. To protect the product and keep it "in shape", most sausages are wrapped by an artificial skin, known as the casing. These are frequently made of regenerated cellulose, a synthetic material with entirely natural properties, commonly known as cellophane foil or - in its fibrous form - as Cordura®, Tencel®, rayon and viscose (artificial silk). Scientists at the Fraunhofer Institute for Applied Polymer Research IAP in Golm near Berlin have developed a new and now patented process with which blown cellulose film can be manufactured also for use as sausage casing. It From the surface of Mars to the skin on your body: UK science goes public The 24 exhibits cover an extraordinary range of up-to-the-minute research. A model of the Beagle 2 robot lander - that will range over the Martian surface - is on show, as is a 3-D tour of an astronomical observatory in Hawaii. There is a novel look deep inside turbulent industrial processes; a chance to test your skills as a surgeon under the watchful eye of a computer; and an insight into the fascinating prospects for artificial skin. More Artificial Skin Current Events and Artificial Skin News Articles |
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