Genetically Modified Stem Cells are Effective Against Acute Respiratory Diseases
News Jun 18, 2013
Study results were published in the American Journal of Respiratory Cell and Molecular Biology.
Acute lung injury
Acute lung injury and its more severe manifestation, the acute respiratory distress syndrome, are characterized by very severe inflammatory processes that damage the lungs with a mortality of between 40% and 50%. Currently there is no effective treatment beyond palliative care and mechanical assistance to breath.
"In the last years we have been working in the administration of human mesenchymal stem cells from adipose tissue obtained from liposuction in different pathologies," said the researcher of Human Molecular Genetics reserach group at IDIBELL Josep Maria Aran. "We have found that these stem cells are able to easily reach the lungs and there, secrete anti-inflammatory substances and growth factors."
The studies conducted so far with these cells have shown a positive effect. IDIBELL and VHIR researchers have introduced a genetic modification in these cells that improves treatment.
The cytokine IL33 is a protein that acts as an alarm signal in these patients. When the damage into the lungs begins, the cells secrete this highly proinflammatory substance and elicit a very strong immune system answer.
"We believed," says Aran, "that if we modified genetically mesenchymal stem cells to secrete a molecule antagonist of IL-33, we could stop the inflammatory process and we found that, in mice, the effect was more positive than unmodified cells: regeneration of lung tissue and practically nullifies the inflammatory process in the lungs. "
IDIBELL has signed a licensing agreement with the Basque company Histocell for this genetic modification and currently they are working to make this "smart drug" may reach the clinical stage and try to patients.
Could This Be a "Silver Bullet" for Preventing and Treating Colon Cancer?News
A team of scientists targeted the gene CtBP with a drug known as HIPP (2-hydroxy-imino phenylpyruvic acid) and were able to reduce the development of pre-cancerous polyps by half.READ MORE
Shedding Light on How Tumors Become Resistant to ImmunotherapyNews
Researchers have now found that in skin cutaneous melanoma an epigenetic control protein is key to the development of immunotherapy resistance.READ MORE