Dramatic advances in the fields of biochemistry, cell and molecular biology, genetics, biomedical engineering and materials science have given rise to the remarkable new cross-disciplinary field of tissue engineering. Tissue engineering uses synthetic or naturally derived, engineered biomaterials to replace damaged or defective tissues, such as bone, skin, and even organs.
The weak tendons and fragile bones characteristic of osteogenesis imperfecta, or brittle bone disease, stem from a genetic mutation that causes the incorrect substitution of a single amino acid in the chain of thousands of amino acids making up a collagen molecule, the basic building block of bone and tendon.
Researchers have found a way to directly convert spermatogonial stem cells, the precursors of sperm cells, into tissues of the prostate, skin and uterus. Their approach, described this month in the journal Stem Cells, may prove to be an effective alternative to the medical use of embryonic stem cells.
A more effective way to build plastic scaffolds on which new tissues and even whole organs might be grown in the laboratory is being developed by an international collaboration between teams in Portugal and the UK.
In the clothing industry it's common to mix natural and synthetic fibers. Take cotton and add polyester to make clothing that's soft, breathable and wrinkle free.
Researchers in the Department of Cardiovascular Sciences at the University of Leicester are developing a new way to make protein based drugs with potential applications in stroke, vascular inflammation, blood vessel formation, regenerative medicine and tissue engineering.
Funding from the Biotechnology and Biological Sciences Research Council (BBSRC) could lead to the development of new and better treatments for broken bones and other orthopaedic problems associated with ageing.
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. Such test results are seen as more meaningful than those from animal experiments, and can even make such experiments largely superfluous.
For modern implants and the growth of artificial tissue and organs, it is important to generate materials with characteristics that closely emulate nature.
When someone's knee hurts with every step it's a sign that the cartilage has been so badly damaged that the bones rub together when walking.
MIT engineers and colleagues have built a new tissue scaffold that can stimulate bone and cartilage growth when transplanted into the knees and other joints.
A company co-founded by Professor Anthony Hollander has raised over £1.6 million to fund trials, including the first human study, of its pioneering 'cell bandage' technology, which aims to save thousands of patients from the type of knee surgery that currently leads to premature osteoarthritis.
Scientists at the University of Michigan have developed a method of gene delivery that appears safe for regenerating tooth-supporting gum tissue---a discovery that assuages one of the biggest safety concerns surrounding gene therapy research and tissue engineering.
Human embryonic stem cells (hESC) provide a potentially unlimited source of oral mucosal tissues that may revolutionize the treatment of oral diseases.
The power of magnetism may address a major problem facing bioengineers as they try to create new tissue -- getting human cells to not only form structures, but to stimulate the growth of blood vessels to nourish that growth.
Researchers at the University of Pennsylvania School of Medicine have engineered transplantable living nerve tissue that encourages and guides regeneration in an animal model. Results were published this month in Tissue Engineering.
Stem cells can thrive in segments of well-vascularized tissue temporarily removed from laboratory animals, say researchers at the Stanford University School of Medicine.
Back pain, a hallmark of degenerative disc disease, sends millions of people to their doctor. In fact, more than 80 percent of patients who undergo spine surgery do so because of disc degeneration.
Building on his previous work, Hollander and his team, which included Dr Wael Kafienah and Dr John Tarlton, announced in 2005 they had, for the first time ever, successfully grown human cartilage from a patient's own bone marrow stem cells.
Oral tissue engineering for transplantation to aid wound healing in mouth (oral cavity) reconstruction has taken a significant step forward with a Netherlands-based research team's successful development of a gum tissue (gingival) substitute that can be used for reconstruction in the oral cavity.
Brown University biomedical engineers can now grow and assemble living microtissues into complex three-dimensional structures in a way that will advance the field of tissue engineering and may eventually reduce the need for certain kinds of animal research.
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