STOCKHOLM — Two scientists won the Nobel Prize in chemistry Wednesday for developing a way of editing genes likened to “molecular scissors” that offer the promise of one day curing inherited diseases.
Working on opposite sides of the Atlantic, Frenchwoman Emmanuelle Charpentier and American Jennifer A. Doudna came up with a method known as CRISPR-cas9 that can be used to change the DNA of animals, plants and microorganisms with extremely high precision. It is the first time two women have won the chemistry Nobel together.
Their work allows for laser-sharp snips in the long strings of DNA that make up the “code of life,” allowing scientists to precisely edit specific genes to remove errors which lead to disease.
“There is enormous power in this genetic tool, which affects us all,” said Claes Gustafsson, chair of the Nobel Committee for Chemistry. “It has not only revolutionized basic science, but also resulted in innovative crops and will lead to groundbreaking new medical treatments.”
Gustafsson said that, as a result, any genome can now be edited “to fix genetic damage.”
But he cautioned that the “enormous power of this technology means we have to use it with great care.”
It has already raised serious ethical questions. Most of the world became more aware of CRISPR in 2018, when Chinese scientist He Jiankui revealed he had helped make the world’s first gene-edited babies, to try to engineer resistance to future infection with the AIDS virus. His work was denounced worldwide as unsafe human experimentation because of the risk of causing unintended changes that can pass to future generations, and he’s currently in prison.
In September, an international panel of experts issued a report saying it’s still too soon to try to make genetically edited babies because the science isn’t advanced enough to ensure safety, but they mapped a pathway for any countries that want to consider it.
Charpentier, 51, spoke of the shock of winning.
“Strangely enough I was told a number of times (that I’d win), but when it happens you’re very surprised and you feel that it’s not real,” she told reporters by phone from Berlin after hearing of the award, announced in Stockholm by the Royal Swedish Academy of Sciences. “But obviously it’s real, so I have to get used to it now.”
“I was very emotional,” she added.
When asked about the significance of two women winning, Charpentier said that while she considers herself first and foremost a scientist, she hoped it would encourage others.
“I wish that this will provide a positive message to young girls who would like to follow the path of science,” said Charpentier, who is currently the director of the Max Planck Unit for the Science of Pathogens in Berlin.
Doudna told The Associated Press of her own surprise — including that she learned she’d won from a reporter.
“I literally just found out, I’m in shock,” she said. “I was sound asleep.”
“My greatest hope is that it’s used for good, to uncover new mysteries in biology and to benefit humankind,” said Doudna, who is affiliated with the University of California, Berkeley and is paid by the Howard Hughes Medical Institute, which also supports AP’s Health and Science Department.
The breakthrough research done by Charpentier and Doudna was only published in 2012, making the discovery very recent compared to many Nobel wins that are often only honoured after decades have passed.
Pernilla Wittung-Stafshede, a member of the Nobel Committee, noted that the method developed by the two biochemists has revolutionized the life sciences.
“The genetic scissors were discovered just eight years ago, but have already benefited humankind greatly,” she said.
The Broad Institute at Harvard and MIT have been in a long court fight over patents on CRISPR technology, and many other scientists did important work on it, but Doudna and Charpentier have been most consistently honoured with prizes for turning it into an easily usable tool.
Dr. Francis Collins, who led the drive to map the human genome, said CRISPR “has changed everything” about how to approach solutions to diseases with a genetic cause, such as sickle cell disease.
“You can draw a direct line from the success of the human genome project to the power of CRISPR-cas to make changes in the instruction book,” said Collins, director of the National Institutes of Health that helped fund Doudna’s work.
The prestigious award comes with a gold medal and prize money of 10 million kronor (more than $1.1 million), courtesy of a bequest left more than a century ago by the prize’s creator, Swedish inventor Alfred Nobel. The amount was increased recently to adjust for inflation.
On Monday, the Nobel Committee awarded the prize for physiology and medicine to Americans Harvey J. Alter and Charles M. Rice and British-born scientist Michael Houghton for discovering the liver-ravaging hepatitis C virus. Tuesday’s prize for physics went to Roger Penrose of Britain, Reinhard Genzel of Germany, and Andrea Ghez of the United States for their breakthroughs in understanding the mysteries of cosmic black holes.
The other prizes are for outstanding work in the fields of literature, peace and economics.
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Larson reported from Washington, and Jordans from Berlin. AP Chief Medical Writer Marilynn Marchione contributed from Milwaukee.
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Read more stories about Nobel Prizes past and present by The Associated Press at https://www.apnews.com/NobelPrizes
David Keyton, Christina Larson And Frank Jordans, The Associated Press
NAIROBI, Kenya (AP) — The body of Ugandan Olympic athlete Rebecca Cheptegei — who died after being set on fire by her partner in Kenya — was received Friday by family and anti-femicide crusaders, ahead of her burial a day later.
Cheptegei’s family met with dozens of activists Friday who had marched to the Moi Teaching and Referral Hospital’s morgue in the western city of Eldoret while chanting anti-femicide slogans.
She is the fourth female athlete to have been killed by her partner in Kenya in yet another case of gender-based violence in recent years.
Viola Cheptoo, the founder of Tirop Angels – an organization that was formed in honor of athlete Agnes Tirop, who was stabbed to death in 2021, said stakeholders need to ensure this is the last death of an athlete due to gender-based violence.
“We are here to say that enough is enough, we are tired of burying our sisters due to GBV,” she said.
It was a somber mood at the morgue as athletes and family members viewed Cheptegei’s body which sustained 80% of burns after she was doused with gasoline by her partner Dickson Ndiema. Ndiema sustained 30% burns on his body and later succumbed.
Ndiema and Cheptegei were said to have quarreled over a piece of land that the athlete bought in Kenya, according to a report filed by the local chief.
Cheptegei competed in the women’s marathon at the Paris Olympics less than a month before the attack. She finished in 44th place.
Cheptegei’s father, Joseph, said that the body will make a brief stop at their home in the Endebess area before proceeding to Bukwo in eastern Uganda for a night vigil and burial on Saturday.
“We are in the final part of giving my daughter the last respect,” a visibly distraught Joseph said.
He told reporters last week that Ndiema was stalking and threatening Cheptegei and the family had informed police.
Four in 10 women or an estimated 41% of dating or married Kenyan women have experienced physical or sexual violence perpetrated by their current or most recent partner, according to the Kenya Demographic and Health Survey 2022.
TEL AVIV, Israel (AP) — A rare Bronze-Era jar accidentally smashed by a 4-year-old visiting a museum was back on display Wednesday after restoration experts were able to carefully piece the artifact back together.
Last month, a family from northern Israel was visiting the museum when their youngest son tipped over the jar, which smashed into pieces.
Alex Geller, the boy’s father, said his son — the youngest of three — is exceptionally curious, and that the moment he heard the crash, “please let that not be my child” was the first thought that raced through his head.
The jar has been on display at the Hecht Museum in Haifa for 35 years. It was one of the only containers of its size and from that period still complete when it was discovered.
The Bronze Age jar is one of many artifacts exhibited out in the open, part of the Hecht Museum’s vision of letting visitors explore history without glass barriers, said Inbal Rivlin, the director of the museum, which is associated with Haifa University in northern Israel.
It was likely used to hold wine or oil, and dates back to between 2200 and 1500 B.C.
Rivlin and the museum decided to turn the moment, which captured international attention, into a teaching moment, inviting the Geller family back for a special visit and hands-on activity to illustrate the restoration process.
Rivlin added that the incident provided a welcome distraction from the ongoing war in Gaza. “Well, he’s just a kid. So I think that somehow it touches the heart of the people in Israel and around the world,“ said Rivlin.
Roee Shafir, a restoration expert at the museum, said the repairs would be fairly simple, as the pieces were from a single, complete jar. Archaeologists often face the more daunting task of sifting through piles of shards from multiple objects and trying to piece them together.
Experts used 3D technology, hi-resolution videos, and special glue to painstakingly reconstruct the large jar.
Less than two weeks after it broke, the jar went back on display at the museum. The gluing process left small hairline cracks, and a few pieces are missing, but the jar’s impressive size remains.
The only noticeable difference in the exhibit was a new sign reading “please don’t touch.”
VICTORIA – The British Columbia government is partnering with a bear welfare group to reduce the number of bears being euthanized in the province.
Nicholas Scapillati, executive director of Grizzly Bear Foundation, said Monday that it comes after months-long discussions with the province on how to protect bears, with the goal to give the animals a “better and second chance at life in the wild.”
Scapillati said what’s exciting about the project is that the government is open to working with outside experts and the public.
“So, they’ll be working through Indigenous knowledge and scientific understanding, bringing in the latest techniques and training expertise from leading experts,” he said in an interview.
B.C. government data show conservation officers destroyed 603 black bears and 23 grizzly bears in 2023, while 154 black bears were killed by officers in the first six months of this year.
Scapillati said the group will publish a report with recommendations by next spring, while an independent oversight committee will be set up to review all bear encounters with conservation officers to provide advice to the government.
Environment Minister George Heyman said in a statement that they are looking for new ways to ensure conservation officers “have the trust of the communities they serve,” and the panel will make recommendations to enhance officer training and improve policies.
Lesley Fox, with the wildlife protection group The Fur-Bearers, said they’ve been calling for such a committee for decades.
“This move demonstrates the government is listening,” said Fox. “I suspect, because of the impending election, their listening skills are potentially a little sharper than they normally are.”
Fox said the partnership came from “a place of long frustration” as provincial conservation officers kill more than 500 black bears every year on average, and the public is “no longer tolerating this kind of approach.”
“I think that the conservation officer service and the B.C. government are aware they need to change, and certainly the public has been asking for it,” said Fox.
Fox said there’s a lot of optimism about the new partnership, but, as with any government, there will likely be a lot of red tape to get through.
“I think speed is going to be important, whether or not the committee has the ability to make change and make change relatively quickly without having to study an issue to death, ” said Fox.
This report by The Canadian Press was first published Sept. 9, 2024.
