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Source: http://www.bbc.co.uk/news/health-20539835
Stem cells being made from blood
A patient's own blood has been used to make personalised stem cells, which doctors hope will eventually be used to treat a range of diseases.
The team at the University of Cambridge says this could be one of the easiest and safest sources of stem cells.
In a study, published in the journal Stem Cells: Translational Medicine, the cells were used to build blood vessels.
However, experts cautioned that the safety of using such stem cells was still unclear.
Stem cells are one of the great hopes of medical research. They can transform into any other type of cell the body is built from - so they should be able to repair everything from the brain to the heart, and eyes to bone.
“It's a hell of a lot easier to get a blood sample than a high quality skin sample so that's a big benefit”
Prof Chris Mason University College London
One source of stem cells is embryos, but this is ethically controversial and they would be rejected by the immune system in the same way as an organ transplant.
Researchers have shown that skin cells taken from an adult can be tricked into becoming stem cells, which the body should recognise as part of itself and would not reject.
The team at Cambridge looked in blood samples for a type of repair cell that whizzes through the bloodstream repairing any damage to the walls of blood vessels. These were then converted into stem cells.
Dr Amer Rana said this method was better than taking samples from skin.
"We are excited to have developed a practical and efficient method to create stem cells from a cell type found in blood," he said.
"Tissue biopsies are undesirable - particularly for children and the elderly - whereas taking blood samples is routine for all patients."
Dr Rana told the BBC the cells also appeared to be safer to use than those made from skin.
"The fact that these appeared to be fairly stable is very promising," he said.
"The next stage obviously is to say, 'OK if we can do all this, let's actually make some clinical grade cells,' we can then move this technology into the clinic for the first time."
Prof Chris Mason, an expert on regenerative medicine at University College London, said there was some "beautiful work" coming out of the lab in Cambridge.
"It's a hell of a lot easier to get a blood sample than a high quality skin sample, so that's a big benefit," he said.
"However, induced pluripotent stem cells [those converted from adult cells] are still very new, we need far more experience to totally reprogram a cell in a way we know to be safe."
The British Heart Foundation said these cells had "great potential".
The Medical Research Council said there was "rapid progress" being made in the this field.
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WARNING FROM RAEL: For those who don't use their intelligence at its full capacity, the label "selected by RAEL" on some articles does not mean that I agree with their content or support it. "Selected by RAEL" means that I believe it is important for the people of this planet to know about what people think or do, even when what they think or do is completely stupid and against our philosophy. When I selected articles in the past about stupid Christian fundamentalists in America praying for rain, I am sure no Rael-Science reader was stupid enough to believe that I was supporting praying to change the weather. So, when I select articles which are in favor of drugs, anti-semitic, anti-Jewish, racist, revisionist, or inciting hatred against any group or religion, or any other stupid article, it does not mean that I support them. It just means that it is important for all human beings to know about them. Common sense, which is usually very good among our readers, is good enough to understand that. When, like in the recent articles on drug decriminalization, it is necessary to make it clearer, I add a comment, which in this case was very clear: I support decriminalizing all drugs, as it is stupid to throw depressed and sad people (as only depressed and sad people use drugs) in prison and ruin their life with a criminal record. That does not mean that there is any change to the Message which says clearly that we must not use any drug except for medical purposes. The same applies to the freedom of expression which must be absolute. That does not mean again of course that I agree with anti-Jews, antisemites, racists of any kind or anti-Raelians. But by knowing your enemies or the enemies of your values, you are better equipped to fight them. With love and respect of course, and with the wonderful sentence of the French philosopher Voltaire in mind: "I disapprove of what you say, but I will defend to the death your right to say it".
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"Ethics" is simply a last-gasp attempt by deist conservatives and
orthodox dogmatics to keep humanity in ignorance and obscurantism,
through the well tried fermentation of fear, the fear of science and
new technologies.
There is nothing glorious about what our ancestors call history,
it is simply a succession of mistakes, intolerances and violations.
On the contrary, let us embrace Science and the new technologies
unfettered, for it is these which will liberate mankind from the
myth of god, and free us from our age old fears, from disease,
death and the sweat of labour.
Rael
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