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Work begins to create artificial human DNA from scratch

Work begins to create artificial human DNA from scratch

Saudi Gazette26-06-2025
LONDON — Work has begun on a controversial project to create the building blocks of human life from scratch, in what is believed to be a world first.
The research has been taboo until now because of concerns it could lead to designer babies or unforeseen changes for future generations.
But now the world's largest medical charity, the Wellcome Trust, has given an initial £10m to start the project and says it has the potential to do more good than harm by accelerating treatments for many incurable diseases.
Dr Julian Sale, of the MRC Laboratory of Molecular Biology in Cambridge, who is part of the project, told BBC News the research was the next giant leap in biology.
"The sky is the limit. We are looking at therapies that will improve people's lives as they age, that will lead to healthier aging with less disease as they get older.
"We are looking to use this approach to generate disease-resistant cells we can use to repopulate damaged organs, for example in the liver and the heart, even the immune system," he said.
But critics fear the research opens the way for unscrupulous researchers seeking to create enhanced or modified humans.
Dr Pat Thomas, director of the campaign group Beyond GM, said: "We like to think that all scientists are there to do good, but the science can be repurposed to do harm and for warfare".
Details of the project were given to BBC News on the 25th anniversary of the completion of the Human Genome Project, which mapped the molecules in human DNA and was also largely funded by Wellcome.
Every cell in our body contains a molecule called DNA which carries the genetic information it needs. DNA is built from just four much smaller blocks referred to as A, G, C and T, which are repeated over and over again in various combinations. Amazingly it contains all the genetic information that physically makes us who we are.
The Human Genome Project enabled scientists to read all human genes like a bar code. The new work that is getting under way, called the Synthetic Human Genome Project, potentially takes this a giant leap forward – it will allow researchers not just to read a molecule of DNA, but to create parts of it – maybe one day all of it — molecule by molecule from scratch.
The scientists' first aim is to develop ways of building ever larger blocks of human DNA, up to the point when they have synthetically constructed a human chromosome. These contain the genes that govern our development, repair and maintenance.
These can then be studied and experimented on to learn more about how genes and DNA regulate our bodies.
Many diseases occur when these genes go wrong so the studies could lead to better treatments, according to Prof Matthew Hurles, director of the Wellcome Sanger Insititute which sequenced the largest proportion of the Human Genome.
"Building DNA from scratch allows us to test out how DNA really works and test out new theories, because currently we can only really do that by tweaking DNA in DNA that already exists in living systems".
The project's work will be confined to test tubes and dishes and there will be no attempt to create synthetic life. But the technology will give researchers unprecedented control over human living systems.
And although the project is hunting for medical benefits, there is nothing to stop unscrupulous scientists misusing the technology.
They could, for example, attempt to create biological weapons, enhanced humans or even creatures that have human DNA, according to Prof Bill Earnshaw, a highly respected genetic scientist at Edinburgh University who designed a method for creating artificial human chromosomes.
"The genie is out of the bottle," he told BBC News. "We could have a set of restrictions now, but if an organisation who has access to appropriate machinery decided to start synthesising anything, I don't think we could stop them"
Ms Thomas is concerned about how the technology will be commercialised by healthcare companies developing treatments emerging from the research.
"If we manage to create synthetic body parts or even synthetic people, then who owns them. And who owns the data from these creations? "
Given the potential misuse of the technology, the question for Wellcome is why they chose to fund it. The decision was not made lightly, according to Dr Tom Collins, who gave the funding go-ahead.
"We asked ourselves what was the cost of inaction," he told BBC News.
"This technology is going to be developed one day, so by doing it now we are at least trying to do it in as responsible a way as possible and to confront the ethical and moral questions in an upfront way as possible".
A dedicated social science program will run in tandem with the project's scientific development and will be led by Prof Joy Zhang, a sociologist, at the University of Kent.
"We want to get the views of experts, social scientists and especially the public about how they relate to the technology and how it can be beneficial to them and, importantly, what questions and concerns they have," she said. — BBC
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British man who perished in Antarctic glacier found 65 years later
British man who perished in Antarctic glacier found 65 years later

Saudi Gazette

time6 days ago

  • Saudi Gazette

British man who perished in Antarctic glacier found 65 years later

LONDON — The bones of a British man who died in a terrible accident in Antarctica in 1959 have been discovered in a melting glacier. The remains were found in January by a Polish Antarctic expedition, alongside a wristwatch, a radio, and a pipe. He has now been formally identified as Dennis "Tink" Bell, who fell into a crevasse aged 25 when working for the organisation that became the British Antarctic Survey. "I had long given up on finding my brother. It is just remarkable, astonishing. I can't get over it," David Bell, 86, tells BBC News. "Dennis was one of the many brave personnel who contributed to the early science and exploration of Antarctica under extraordinarily harsh conditions," says Professor Dame Jane Francis, director of the British Antarctic Survey . "Even though he was lost in 1959, his memory lived on among colleagues and in the legacy of polar research," she adds. It was David who answered the door in his family home in Harrow, London, in July 1959. "The telegram boy said, 'I'm sorry to tell you, but this is bad news'," he says. He went upstairs to tell his parents. "It was a horrendous moment," he adds. Talking to me from his home in Australia and sitting next to his wife Yvonne, David smiles as stories from his childhood in 1940s England spill out. They are the memories of a younger sibling admiring a charming, adventurous big brother. "Dennis was fantastic company. He was very amusing. The life and soul of wherever he happened to be," David says. "I still can't get over this, but one evening when me, my mother and father came home from the cinema," he says. "And I have to say this in fairness to Dennis, he had put a newspaper down on the kitchen table, but on top of it, he'd taken a motorbike engine apart and it was all over the table," he says. "I can remember his style of dress, he always used to wear duffel coats. He was just an average sort of fellow who enjoyed life," he adds. Dennis Bell, nicked-named "Tink", was born in 1934. He worked with the RAF and trained as a meteorologist, before joining the Falkland Islands Dependencies Survey to work in Antarctica. "He was obsessed with Scott's diaries," David says, referring to Captain Robert Scott who discovered the South Pole and died on an expedition in 1912. Dennis went to Antarctica in 1958. He was stationed for a two-year assignment at Admiralty Bay, a small UK base with about 12 men on King George Island, which is roughly 120 kilometres (75 miles) off the northern coast of the Antarctic Peninsula. The British Antarctica Survey keeps meticulous records and its archivist Ieuan Hopkins has dug out detailed base camp reports about Dennis's work and antics on the harsh and "ridiculously isolated" island. Reading aloud, Hopkins says: "He's cheerful and industrious, with a mischievous sense of humour and fondness for practical jokes." Dennis's job was to send up meteorological weather balloons and radio the reports to the UK every three hours, which involved firing up a generator in sub-zero conditions. Described as the best cook in the hut, he was in charge of the food store over the winter when no supplies could reach them. Antarctica felt even more cut off than it is today, with extremely limited contact with home. David recalls recording a Christmas message at BBC studios with his parents and sister Valerie to be sent to his brother. He was best known for his love of the husky dogs used to pull sledges around the island, and he raised two litters of dogs. British Antarctic Survey A black and white photograph of three men holding large husky dogs. British Antarctic Survey Dennis Bell, on the left, with dogs at the Admiralty Bay Station in 1959 He was also involved in surveying King George Island to produce some of the first mapping of the largely unexplored place. It was on a surveying trip that the accident happened, a few weeks after his 25th birthday. On 26 July 1959, in the deep Antarctic winter, Dennis and a man called Jeff Stokes left the base to climb and survey a glacier. Accounts in the British Antarctic Survey records explain what happened next and the desperate attempts to rescue him. The snow was deep and the dogs had started to show signs of tiredness. Dennis went on ahead alone to encourage them, but he wasn't wearing his skis. Suddenly he disappeared into a crevasse, leaving a hole behind him. According to the accounts, Jeff Stokes called into the depths and Dennis was able to shout back. He grabbed onto a rope that was lowered down. The dogs pulled on the rope and Dennis was hitched up to the lip of the hole. But he had tied the rope onto his belt, perhaps because of the angle he lay in. As he reached the lip, the belt broke and he fell again. His friend called again, but this time Dennis didn't reply. "That's a story I shall never get over," says David. The base camp reports about the accident are business-like. "We heard from Jeff [...] that yesterday Tink fell down a crevasse and was killed. We hope to return tomorrow, sea ice permitting," it continues. Hopkins explains that another man, called Alan Sharman, had died weeks earlier, and the morale was very low. "The sledge has got back. We heard the sad details. Jeff has badly bitten frostbitten hands. We are not taking any more risks to recover," the report reads the day after the accident. Reading the reports again, Hopkins discovered that earlier in the season, it had been Dennis who'd made the coffin for Alan Sharman. "My mother never really got over it. She couldn't handle photographs of him and couldn't talk about him," David says. He recalls that two men on Dennis's base visited the family, bringing a sheepskin as a gesture. "But there was no conclusion. There was no service; there was no anything. Just Dennis gone," David says. About 15 years ago, David was contacted by Rod Rhys Jones, chair of the British Antarctic Monument Trust. Since 1944, 29 people have died working on British Antarctic Territory on scientific missions, according to the trust. Rod was organising a voyage for relatives of some of the 29 to see the spectacular and remote place where their loved ones had lived and died. David joined the expedition, called South 2015. "The captain stopped at the locations and give four or five hoots of the siren," he says. The sea-ice was too thick for David to reach his brother's hut on King George Island. "But it was very, very moving. It lifted the pressure, a weight off my head, as it were," he says. It gave him a sense of closure. "And I thought that would be it," he says. But on 29 January this year, a team of Polish researchers working from the Henryk Arctowski Polish Antarctic Station stumbled across something practically on their doorstep. Dennis had been found. Some bones were in the loose ice and rocks deposited at the foot of Ecology Glacier on King George Island. Others were found on the glacier surface. The scientists explain that fresh snowfall was imminent, and they put down a GPS marker so their "fellow polar colleague" would not be lost again. A team of scientists made up of Piotr Kittel, Paulina Borówka and Artur Ginter at University of Lodz, Dariusz Puczko at the Polish Academy of Sciences and fellow researcher Artur Adamek carefully rescued the remains in four trips. It is a dangerous and unstable place, "criss-crossed with crevasses", and with slopes of up to 45 degrees, according to the Polish team. Climate change is causing dramatic changes to many Antarctic glaciers, including Ecology Glacier, which is undergoing intense melting. "The place where Dennis was found is not the same as the place where he went missing," the team explains. "Glaciers, under the influence of gravity, move their mass of ice, and with it, Dennis made his journey," they say. Fragments of bamboo ski poles, remains of an oil lamp, glass containers for cosmetics, and fragments from military tents were also collected. "Every effort was made to ensure that Dennis could return home," the team say. "It's an opportunity to reassess the contribution these men made, and an opportunity to promote science and what we've done in the Antarctic over many decades," adds Rod Rhys Jones. David still seems overwhelmed by the news, and repeats how grateful he is to the Polish scientists. "I'm just sad my parents never got to see this day," he says. David will soon visit England where he and his sister, Valerie, plan to finally put Dennis to rest. "It's wonderful; I'm going to meet my brother. You might say we shouldn't be thrilled, but we are. He's been found - he's come home now." — BBC

Healthy babies born in Britain after scientists used DNA from three people to avoid genetic disease
Healthy babies born in Britain after scientists used DNA from three people to avoid genetic disease

Arab News

time16-07-2025

  • Arab News

Healthy babies born in Britain after scientists used DNA from three people to avoid genetic disease

LONDON: Eight healthy babies were born in Britain with the help of an experimental technique that uses DNA from three people to help mothers avoid passing devastating rare diseases to their children, researchers reported Wednesday. Most DNA is found in the nucleus of our cells, and it's that genetic material — some inherited from mom, some from dad — that makes us who we are. But there's also some DNA outside of the cell's nucleus, in structures called mitochondria. Dangerous mutations there can cause a range of diseases in children that can lead to muscle weakness, seizures, developmental delays, major organ failure and death. Testing during the in vitro fertilization process can usually identify whether these mutations are present. But in rare cases, it's not clear. Researchers have been developing a technique that tries to avoid the problem by using the healthy mitochondria from a donor egg. They reported in 2023 that the first babies had been born using this method, where scientists take genetic material from the mother's egg or embryo, which is then transferred into a donor egg or embryo that has healthy mitochondria but the rest of its key DNA removed. The latest research 'marks an important milestone,' said Dr. Zev Williams, who directs the Columbia University Fertility Center and was not involved in the work. 'Expanding the range of reproductive options … will empower more couples to pursue safe and healthy pregnancies.' Using this method means the embryo has DNA from three people — from the mother's egg, the father's sperm and the donor's mitochondria — and it required a 2016 UK law change to approve it. It is also allowed in Australia but not in many other countries, including the US Experts at Britain's Newcastle University and Monash University in Australia reported in the New England Journal of Medicine Wednesday that they performed the new technique in fertilized embryos from 22 patients, which resulted in eight babies that appear to be free of mitochondrial diseases. One woman is still pregnant. One of the eight babies born had slightly higher than expected levels of abnormal mitochondria, said Robin Lovell-Badge, a stem cell and developmental genetics scientist at the Francis Crick Institute who was not involved in the research. He said it was still not considered a high enough level to cause disease, but should be monitored as the baby develops. Dr. Andy Greenfield, a reproductive health expert at the University of Oxford, called the work 'a triumph of scientific innovation,' and said the method of exchanging mitochondria would only be used for a small number of women for whom other ways of avoiding passing on genetic diseases, like testing embryos at an early stage, was not effective. Lovell-Badge said the amount of DNA from the donor is insignificant, noting that any resulting child would have no traits from the woman who donated the healthy mitochondria. The genetic material from the donated egg makes up less than 1 percent of the baby born after this technique. 'If you had a bone marrow transplant from a donor … you will have much more DNA from another person,' he said. In the UK, every couple seeking a baby born through donated mitochondria must be approved by the country's fertility regulator. As of this month, 35 patients have been authorized to undergo the technique. Critics have previously raised concerns, warning that it's impossible to know the impact these sorts of novel techniques might have on future generations. 'Currently, pronuclear transfer is not permitted for clinical use in the US, largely due to regulatory restrictions on techniques that result in heritable changes to the embryo,' Williams, of Columbia, said in an email. 'Whether that will change remains uncertain and will depend on evolving scientific, ethical, and policy discussions.' For about a decade, Congress has included provisions in annual funding bills banning the Food and Drug Administration from accepting applications for clinical research involving techniques, 'in which a human embryo is intentionally created or modified to include a heritable genetic modification.' But in countries where the technique is allowed, advocates say it could provide a promising alternative for some families. Liz Curtis, whose daughter Lily died of a mitochondrial disease in 2006, now works with other families affected by them. She said it was devastating to be told there was no treatment for her eight-month-old baby and that death was inevitable. She said the diagnosis 'turned our world upside down, and yet nobody could tell us very much about it, what it was or how it was going to affect Lily.' Curtis later founded the Lily Foundation in her daughter's name to raise awareness and support research into the disease, including the latest work done at Newcastle University. 'It's super exciting for families that don't have much hope in their lives,' Curtis said.

Work begins to create artificial human DNA from scratch
Work begins to create artificial human DNA from scratch

Saudi Gazette

time26-06-2025

  • Saudi Gazette

Work begins to create artificial human DNA from scratch

LONDON — Work has begun on a controversial project to create the building blocks of human life from scratch, in what is believed to be a world first. The research has been taboo until now because of concerns it could lead to designer babies or unforeseen changes for future generations. But now the world's largest medical charity, the Wellcome Trust, has given an initial £10m to start the project and says it has the potential to do more good than harm by accelerating treatments for many incurable diseases. Dr Julian Sale, of the MRC Laboratory of Molecular Biology in Cambridge, who is part of the project, told BBC News the research was the next giant leap in biology. "The sky is the limit. We are looking at therapies that will improve people's lives as they age, that will lead to healthier aging with less disease as they get older. "We are looking to use this approach to generate disease-resistant cells we can use to repopulate damaged organs, for example in the liver and the heart, even the immune system," he said. But critics fear the research opens the way for unscrupulous researchers seeking to create enhanced or modified humans. Dr Pat Thomas, director of the campaign group Beyond GM, said: "We like to think that all scientists are there to do good, but the science can be repurposed to do harm and for warfare". Details of the project were given to BBC News on the 25th anniversary of the completion of the Human Genome Project, which mapped the molecules in human DNA and was also largely funded by Wellcome. Every cell in our body contains a molecule called DNA which carries the genetic information it needs. DNA is built from just four much smaller blocks referred to as A, G, C and T, which are repeated over and over again in various combinations. Amazingly it contains all the genetic information that physically makes us who we are. The Human Genome Project enabled scientists to read all human genes like a bar code. The new work that is getting under way, called the Synthetic Human Genome Project, potentially takes this a giant leap forward – it will allow researchers not just to read a molecule of DNA, but to create parts of it – maybe one day all of it — molecule by molecule from scratch. The scientists' first aim is to develop ways of building ever larger blocks of human DNA, up to the point when they have synthetically constructed a human chromosome. These contain the genes that govern our development, repair and maintenance. These can then be studied and experimented on to learn more about how genes and DNA regulate our bodies. Many diseases occur when these genes go wrong so the studies could lead to better treatments, according to Prof Matthew Hurles, director of the Wellcome Sanger Insititute which sequenced the largest proportion of the Human Genome. "Building DNA from scratch allows us to test out how DNA really works and test out new theories, because currently we can only really do that by tweaking DNA in DNA that already exists in living systems". The project's work will be confined to test tubes and dishes and there will be no attempt to create synthetic life. But the technology will give researchers unprecedented control over human living systems. And although the project is hunting for medical benefits, there is nothing to stop unscrupulous scientists misusing the technology. They could, for example, attempt to create biological weapons, enhanced humans or even creatures that have human DNA, according to Prof Bill Earnshaw, a highly respected genetic scientist at Edinburgh University who designed a method for creating artificial human chromosomes. "The genie is out of the bottle," he told BBC News. "We could have a set of restrictions now, but if an organisation who has access to appropriate machinery decided to start synthesising anything, I don't think we could stop them" Ms Thomas is concerned about how the technology will be commercialised by healthcare companies developing treatments emerging from the research. "If we manage to create synthetic body parts or even synthetic people, then who owns them. And who owns the data from these creations? " Given the potential misuse of the technology, the question for Wellcome is why they chose to fund it. The decision was not made lightly, according to Dr Tom Collins, who gave the funding go-ahead. "We asked ourselves what was the cost of inaction," he told BBC News. "This technology is going to be developed one day, so by doing it now we are at least trying to do it in as responsible a way as possible and to confront the ethical and moral questions in an upfront way as possible". A dedicated social science program will run in tandem with the project's scientific development and will be led by Prof Joy Zhang, a sociologist, at the University of Kent. "We want to get the views of experts, social scientists and especially the public about how they relate to the technology and how it can be beneficial to them and, importantly, what questions and concerns they have," she said. — BBC

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