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Welcome to the nexus of ethics, psychology, morality, technology, health care, and philosophy
Showing posts with label CRISPR. Show all posts
Showing posts with label CRISPR. Show all posts

Thursday, July 5, 2018

Crispr Fans Fight for Egalitarian Access to Gene Editing

Megan Molteni
Wired.com
Originally posted June 6, 2018

Here is an excerpt:

Like any technology, the applications of gene editing tech will be shaped by the values of the societies that wield it. Which is why a conversation about equitable access to Crispr quickly becomes a conversation about redistributing some of the wealth and education that has been increasingly concentrated in smaller and smaller swaths of the population over the past three decades. Today the richest 1 percent of US families control a record-high 38.6 percent of the country’s wealth. The fear is that Crispr won’t disrupt current inequalities, it’ll just perpetuate them.

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CrisprCon excels at providing a platform to raise these kinds of big picture problems and moral quagmires. But in its second year, it was still light on solutions. The most concrete examples came from a panel of people pursuing ecotechnologies—genetic methods for changing, controlling, or even exterminating species in the wild (disclosure: I moderated the panel).

The information is here.

Tuesday, April 24, 2018

The Next Best Version of Me: How to Live Forever

David Ewing Duncan
Wired.com
Originally published March 27, 2018

Here is an excerpt:

There are also the ethics of using a powerful new technology to muck around with life’s basic coding. Theoretically, scientists could one day manufacture genomes, human or otherwise, almost as easily as writing code on a computer, transforming digital DNA on someone’s laptop into living cells of, say, Homo sapiens. Mindful of the controversy, Church and his HGP-Write colleagues insist that minting people is not their goal, though the sheer audacity of making genome-scale changes to human DNA is enough to cause controversy. “People get upset if you put a gene from another species into something you eat,” says Stanford bioethicist and legal scholar Henry Greely. “Now we’re talking about a thorough rewriting of life? Hairs will stand on end. Hackles will be raised.”

Raised hackles or not, Church and his team are forging ahead. “We want to start with a human Y,” he says, referring to the male sex chromosome, which he explains has the fewest genes of a person’s 23 chromo­somes and is thus easier to build. And he doesn’t want to synthesize just any Y chromosome. He and his team want to use the Y chromosome sequence from an actual person’s genome: mine.

“Can you do that?” I stammer.

“Of course we can—with your permission,” he says, reminding me that it would be easy to tap into my genome, since it was stored digitally in his lab’s computers as part of an effort he launched in 2005 called the Personal Genome Project.

The article is here.

Sunday, March 25, 2018

Deadly gene mutations removed from human embryos in landmark study

Ian Sample
The Guardian
Originally published August 2, 2017

Scientists have modified human embryos to remove genetic mutations that cause heart failure in otherwise healthy young people in a landmark demonstration of the controversial procedure.

It is the first time that human embryos have had their genomes edited outside China, where researchers have performed a handful of small studies to see whether the approach could prevent inherited diseases from being passed on from one generation to the next.

While none of the research so far has created babies from modified embryos, a move that would be illegal in many countries, the work represents a milestone in scientists’ efforts to master the technique and brings the prospect of human clinical trials one step closer.

The work focused on an inherited form of heart disease, but scientists believe the same approach could work for other conditions caused by single gene mutations, such as cystic fibrosis and certain kinds of breast cancer.

The article is here.

Monday, January 22, 2018

Science and Morality

Jim Kozubek
Scientific American
Originally published December 27, 2017

Here is an excerpt:

The argument that genes embody a sort of sacrosanct character that should not be interfered with is not too compelling, since artifacts of viruses are burrowed in our genomes, and genes undergo mutations with each passing generation. Even so, the principle that all life has inherent dignity is hardly a bad thought and provides a necessary counterbalance to the impulse to use in vitro techniques and CRISPR to alter any gene variant to reduce risk or enhance features, none of which are more or less perfect but variations in human evolution.

Indeed, the question of dignity is thornier than we might imagine, since science tends to challenge the belief in abstract or enduring concepts of value. How to uphold beliefs or a sense of dignity seems ever confusing and appears to throw us up against an age of radical nihilism as scientists today are using the gene editing tool CRISPR to do things such as tinker with the color of butterfly wings, genetically alter pigs, even humans. If science is a method of truth-seeking, technology its mode of power and CRISPR is a means to the commodification of life. It also raises the possibility this power can erode societal trust. 

The article is here.

Wednesday, January 17, 2018

‘I want to help humans genetically modify themselves’

Tom Ireland
The Guardian
Originally posted December 24, 2017

Josiah Zayner, 36, recently made headlines by becoming the first person to use the revolutionary gene-editing tool Crispr to try to change their own genes. Part way through a talk on genetic engineering, Zayner pulled out a syringe apparently containing DNA and other chemicals designed to trigger a genetic change in his cells associated with dramatically increased muscle mass. He injected the DIY gene therapy into his left arm, live-streaming the procedure on the internet.

The former Nasa biochemist, based in California, has become a leading figure in the growing “biohacker” movement, which involves loose collectives of scientists, engineers, artists, designers, and activists experimenting with biotechnology outside of conventional institutions and laboratories.

Despite warnings from the US Food and Drug Administration (FDA) that selling gene therapy products without regulatory approval is illegal, Zayner sells kits that allow anyone to get started with basic genetic engineering techniques, and has published a free guide for others who want to take it further and experiment on themselves.

The article is here.

Wednesday, November 22, 2017

The Public’s Distrust of Biotech Is Deepening. Commercialization May Be to Blame.

Jim Kozubek
undark.org
Originally published November 3, 2017

Here is an excerpt:

The high profile patent battle over the CRISPR-Cas9 gene editing tool, often valued commercially at a billion dollars, and the FDA approval of the first genetically modified medicine for $475,000 — a sale price that is 19 times the cost to manufacture it — have displayed the capacity for turning taxpayer-funded research into an aggressive money-making enterprise. More personally, genetics are being used to typify people for cancer risk and age-related diseases, schizophrenia, autism, and intelligence, none of which truly belong to diagnostic categories.

It is therefore no surprise that parents may want to protect their newborns from becoming targets of commercialization.

In truth, genome sequencing is an extension of earlier commercial sequencing tests and standard newborn screening tests. BabySeq has expanded these to 166 genes, which can theoretically predict thousands of disorders and identify several genetic risk variants. For instance, it has identified a dozen newborns to have a genetic variant associated with biotinidase deficiency, which can impact cognition, and be fixed by taking a simple vitamin. Casie Genetti, a researcher at Boston Children’s Hospital, noted researchers found 109 of 125 babies had at least one, and up to six, genetic variants for an autosomal recessive disorder, meaning that if they went on to have children with a partner who had a corresponding gene compromised in a similar way, it could be damaging or life-threatening for their own baby.

Part of the problem is that we all have some measure of genetic variation, and that can be either dangerous or advantageous depending on the cell type or genetic background or environment.

The article is here.

Tuesday, October 17, 2017

Is it Ethical for Scientists to Create Nonhuman Primates with Brain Disorders?

Carolyn P. Neuhaus
The Hastings Center
Originally published on September 25, 2017

Here is an excerpt:

Such is the rationale for creating primate models: the brain disorders under investigation cannot be accurately modelled in other nonhuman organisms, because of differences in genetics, brain structure, and behaviors. But research involving humans with brain disorders is also morally fraught. Some people with brain disorders experience impairments to decision-making capacity as a component or symptom of disease, and therefore are unable to provide truly informed consent to research participation. Some of the research is too invasive, and would be grossly unethical to carry out with human subjects. So, nonhuman primates, and macaques in particular, occupy a “sweet spot.” Their genetic code and brain structure are sufficiently similar to humans’ so as to provide a valid and accurate model of human brain disorders. But, they are not conferred protections from research that apply to humans and to some non-human primates, notably chimpanzees and great apes. In the United States, for example, chimpanzees are protected from invasive research, but other primates are not. Some have suggested, including in a recent article in Journal of Medical Ethics, that protections like those afforded to chimpanzees ought to be extended to other primates and other animals, such as dogs, as evidence mounts that they also have complex cognitive, social, and emotional lives. For now, macaques and other primates remain in use.

Prior to the discovery of genome editing tools like ZFNs, TALENs, and most recently, CRISPR, it was extremely challenging, almost to the point of prohibitive, to create non-human primates with precise, heritable genome modifications. But CRISPR (Clustered Randomized Interspersed Palindromic Repeat) presents a technological advance that brings genome engineering of non-human primates well within reach.

The article is here.

Sunday, October 1, 2017

Future Frankensteins: The Ethics of Genetic Intervention

Philip Kitcher
Los Angeles Review of Books
Originally posted September 4, 2017

Here is an excerpt:

The more serious argument perceives risks involved in germline interventions. Human knowledge is partial, and so perhaps we will fail to recognize some dire consequence of eliminating a particular sequence from the genomes of all members of our species. Of course, it is very hard to envisage what might go wrong — in the course of human evolution, many DNA sequences have arisen and disappeared. Moreover, in this instance, assuming a version of CRISPR-Cas9 sufficiently reliable to use on human beings, we could presumably undo whatever damage we had done. But, a skeptic may inquire, why take any risk at all? Surely somatic interventions will suffice. No need to tamper with the germline, since we can always modify the bodies of the unfortunate people afflicted with troublesome sequences.

Doudna and Sternberg point out, in a different context, one reason why this argument fails: some genes associated with disease act too early in development (in utero, for example). There is a second reason for failure. In a world in which people are regularly rescued through somatic interventions, the percentage of later generations carrying problematic sequences is likely to increase, with the consequence that ever more resources would have to be devoted to editing the genomes of individuals.  Human well-being might be more effectively promoted through a program of germline intervention, freeing those resources to help those who suffer in other ways. Once again, allowing editing of eggs and sperm seems to be the path of compassion. (The problems could be mitigated if genetic testing and in vitro fertilization were widely available and widely used, leaving somatic interventions as a last resort for those who slipped through the cracks. But extensive medical resources would still be required, and encouraging — or demanding — pre-natal testing and use of IVF would introduce a problematic and invasive form of eugenics.)

The article is here.

Sunday, August 20, 2017

The ethics of creating GMO humans

The Editorial Board
The Los Angeles Times
Originally posted August 3, 2017

Here is an excerpt:

But there is also a great deal we still don’t know about how minor issues might become major ones as people pass on edited DNA to their offspring, and as people who have had some genes altered reproduce with people who have had other genes altered. We’ve seen how selectively breeding to produce one trait can unexpectedly produce other, less desirable outcomes. Remember how growers were able to create tomatoes that were more uniformly red, but in the process, they turned off the gene that gave tomatoes flavor?

Another major issue is the ethics of adjusting humans genetically to fit a favored outcome. Today it’s heritable disease, but what might be seen as undesirable traits in the future that people might want to eliminate? Short stature? Introverted personality? Klutziness?

To be sure, it’s not as though everyone is likely to line up for gene-edited offspring rather than just having babies, at least for the foreseeable future. The procedure can be performed only on in vitro embryos and requires precision timing.

The article is here.

Thursday, July 27, 2017

First Human Embryos Edited in U.S.

Steve Connor
MIT Technology News
Originally published July 26, 2017

The first known attempt at creating genetically modified human embryos in the United States has been carried out by a team of researchers in Portland, Oregon, Technology Review has learned.

The effort, led by Shoukhrat Mitalipov of Oregon Health and Science University, involved changing the DNA of a large number of one-cell embryos with the gene-editing technique CRISPR, according to people familiar with the scientific results.

Until now, American scientists have watched with a combination of awe, envy, and some alarm as scientists elsewhere were first to explore the controversial practice. To date, three previous reports of editing human embryos were all published by scientists in China.

Now Mitalipov is believed to have broken new ground both in the number of embryos experimented upon and by demonstrating that it is possible to safely and efficiently correct defective genes that cause inherited diseases.

Although none of the embryos were allowed to develop for more than a few days—and there was never any intention of implanting them into a womb—the experiments are a milestone on what may prove to be an inevitable journey toward the birth of the first genetically modified humans.

The article is here.

Saturday, July 8, 2017

The Ethics of CRISPR

Noah Robischon
Fast Company
Originally published on June 20, 2017

On the eve of publishing her new book, Jennifer Doudna, a pioneer in the field of CRISPR-Cas9 biology and genome engineering, spoke with Fast Company about the potential for this new technology to be used for good or evil.

“The worst thing that could happen would be for [CRISPR] technology to be speeding ahead in laboratories,” Doudna tells Fast Company. “Meanwhile, people are unaware of the impact that’s coming down the road.” That’s why Doudna and her colleagues have been raising awareness of the following issues.

DESIGNER HUMANS

Editing sperm cells or eggs—known as germline manipulation—would introduce inheritable genetic changes at inception. This could be used to eliminate genetic diseases, but it could also be a way to ensure that your offspring have blue eyes, say, and a high IQ. As a result, several scientific organizations and the National Institutes of Health have called for a moratorium on such experimentation. But, writes Doudna, “it’s almost certain that germline editing will eventually be safe enough to use in the clinic.”

The article is here.

Friday, June 30, 2017

Ethical Interventions Means Giving Consumers A Say

Susan Liautaud
Wired Magazine
Originally published June 12, 2017

Here is an excerpt:

Increasingly, the people and companies with the technological or scientific ability to create new products or innovations are de facto making policy decisions that affect human safety and society. But these decisions are often based on the creator’s intent for the product, and they don't always take into account its potential risks and unforeseen uses. What if gene-editing is diverted for terrorist ends? What if human-pig chimeras mate? What if citizens prefer to see birds rather than flying cars when they look out a window? (Apparently, this is a real risk. Uber plans to offer flight-hailing apps by 2020.) What if Echo Look leads to mental health issues for teenagers? Who bears responsibility for the consequences?

Jennifer Doudna and Emmanuelle Charpentier’s landmark 2014 article in Science, “The new frontier of genome engineering with CRISPR-Cas9,” called for a broader discussion among “scientists and society at large” about the technology's responsible use. Other leading scientists have joined the call for caution before the technique is intentionally used to alter the human germ line. The National Academies of Science, Engineering, and Medicine recently issued a report recommending that the ethical framework applied to gene therapy also be used when considering Crispr applications. In effect, the experts ask whether their scientific brilliance should legitimize them as decision-makers for all of us.

Crispr might prevent Huntington’s disease and cure cancer. But should errors occur, it’s hard to predict the outcome or prevent its benign use (by thoughtful and competent people) or misuse (by ill-intentioned actors).

Who should decide how Crispr should be used: Scientists? Regulators? Something in between, such as an academic institution, medical research establishment, or professional/industry association? The public? Which public, given the global impact of the decisions? Are ordinary citizens equipped to make such technologically complex ethical decisions? Who will inform the decision-makers about possible risks and benefits?

The article is here.

Sunday, May 28, 2017

CRISPR Makes it Clear: US Needs a Biology Strategy, FAST

Amy Webb
Wired
Originally published

Here is an excerpt:

Crispr can be used to engineer agricultural products like wheat, rice, and animals to withstand the effects of climate change. Seeds can be engineered to produce far greater yields in tiny spaces, while animals can be edited to create triple their usual muscle mass. This could dramatically change global agricultural trade and cause widespread geopolitical destabilization. Or, with advance planning, this technology could help the US forge new alliances.

How comfortable do you feel knowing that there is no group coordinating a national biology strategy in the US, and that a single for-profit company holds a critical mass of intellectual property rights to the future of genomic editing?

While I admire Zheng’s undeniable smarts and creativity, for-profit companies don’t have a mandate to balance the tension between commercial interests and what’s good for humanity; there is no mechanism to ensure that they’ll put our longer-term best interests first.

The article is here.

Monday, May 22, 2017

The morality of technology

Rahul Matthan
Live Mint
Originally published May 3, 2017

Here is an excerpt:

Another example of the two sides of technology is drones—a modern technology that is already being deployed widely—from the delivery of groceries to ensuring that life saving equipment reaches first responders in high density urban areas. But for every beneficent use of drone tech, there are an equal number of dubious uses that challenge our ethical boundaries. Foremost among these is development of AI-powered killer drones—autonomous flying weapons intelligent enough to accurately distinguish between friend and foe and then, autonomously, take the decision to execute a kill.

This duality is inherent in all of tech. But just because technology can be used for evil, that should not, of itself, be a reason not to use it. We need new technology to better ourselves and the world we live in—and we need to be wise about how we apply it so that our use remains consistent with the basic morality inherent in modern society. This implies that each time we make a technological breakthrough we must assess afresh, the contexts within which they could present themselves and the uses to which they should (and should not) be put. If required, we must take the trouble to re-draw our moral boundaries, establishing the limits within which they must be constrained.

The article is here.

Monday, April 3, 2017

Can Human Evolution Be Controlled?

William B. Hurlbut
Big Questions Online
Originally published February 17, 2017

Here is an excerpt:

These gene-editing techniques may transform our world as profoundly as many of the greatest scientific discoveries and technological innovations of the past — like electricity, synthetic chemistry, and nuclear physics. CRISPR/Cas9 could provide urgent and uncontroversial progress in biomedical science, agriculture, and environmental ecology. Indeed, the power and depth of operation of these new tools is delivering previously unimagined possibilities for reworking or redeploying natural biological processes — some with startling and disquieting implications. Proposals by serious and well-respected scientists include projects of broad ecological engineering, de-extinction of human ancestral species, a biotechnological “cure” for aging, and guided evolution of the human future.

The questions raised by such projects go beyond issues of individual rights and social responsibilities to considerations of the very source and significance of the natural world, its integrated and interdependent processes, and the way these provide the foundational frame for the physical, psychological, and spiritual meaning of human life.

The article is here.

Wednesday, March 15, 2017

Researchers Are Divided as FDA Moves to Regulate Gene Editing

Paul Basken
The Chronicle of Higher Education
Originally published February 22, 2017

As U.S. regulators threaten broad new limits on the use of gene-editing technology, a Utah State University researcher now engineering goats to produce spider silk in their milk isn’t particularly worried.

"They’re just trying to modernize" rules to keep up with technology, the Utah professor, Randolph V. Lewis, said of the changes proposed by the U.S. Food and Drug Administration.

But over in Minnesota, a researcher working to create cows without horns — as a way of keeping the animals safe from one another — has a far different take.

"It’s a huge overreach" by the FDA that could stifle innovation, said Scott C. Fahrenkrug, an adjunct professor of functional genomics at the University of Minnesota at Twin Cities.

The FDA is responsible for ensuring the safety of food and drugs sold to Americans, and for years it has defined that oversight to require its approval when genes are added to animals whose products might be consumed. The change it proposed last month would expand that authority to cover new technologies such as CRISPR that enable gene-specific editing, potentially enabling changes not found in any known species.

To supporters, the FDA is simply trying to keep up with the science. To detractors, it’s a reach for authority so broad as to go beyond any reasonable definition of the FDA’s mandate.

The article is here.

Monday, November 28, 2016

CRISPR gene-editing tested in a person for the first time

David Cyranoski
Nature
Originally published November 16, 2016

A Chinese group has become the first to inject a person with cells that contain genes edited using the revolutionary CRISPR–Cas9 technique.

On 28 October, a team led by oncologist Lu You at Sichuan University in Chengdu delivered the modified cells into a patient with aggressive lung cancer as part of a clinical trial at the West China Hospital, also in Chengdu.

Earlier clinical trials using cells edited with a different technique have excited clinicians. The introduction of CRISPR, which is simpler and more efficient than other techniques, will probably accelerate the race to get gene-edited cells into the clinic across the world, says Carl June, who specializes in immunotherapy at the University of Pennsylvania in Philadelphia and led one of the earlier studies.

The article is here.

Friday, August 12, 2016

First CRISPR trial in humans is reported to start August 2016

By Sharon Begley @sxbegle
Stat News
Originally published July 21, 2016

Scientists in China plan to use the genome-editing technology CRISPR-Cas9 in patients as early as next month, Nature reported on Thursday. If they go ahead, it would be the first time people would be injected with cells whose DNA has been altered by CRISPR.

A US proposal to run a similar study received approval by a federal ethics and safety panel last month, but it faces months of additional regulatory hurdles before it can go ahead by the end of 2016 at the earliest. The Chinese scientists, led by oncologist Lu You of Sichuan University’s West China Hospital in Chengdu, received approval from the hospital’s review board on July 6, Nature reported, and plan to treat their first patient in August.

Both the US and Chinese scientists would use CRISPR to edit immune-system T cells in patients with cancer in an effort to make those cells destroy malignant cells.

The article is here.

Saturday, July 16, 2016

Federal panel approves first test of CRISPR editing in humans

By Laurie McGinley
The Washington Post
Originally posted on June 21, 2016

A National Institutes of Health advisory panel on Tuesday approved the first human use of the gene-editing technology CRISPR, for a study designed to target three types of cancer and funded by tech billionaire Sean Parker’s new cancer institute.

The experiment, proposed by researchers at the University of Pennsylvania, would use CRISPR-Cas9 technology to modify patients’ own T cells to make them more effective in attacking melanoma, multiple myeloma and sarcoma.

The federal Recombinant DNA Advisory Committee approved the Penn proposal unanimously, with one member abstaining. The experiment still must be approved by the Food and Drug Administration, which regulates clinical trials.

The article is here.

Wednesday, June 29, 2016

It’s time society discussed the ethical issues raised by the gene revolution

Linda Geddes
The Guardian
Originally posted June 11, 2016

Here is an excerpt:

Since the method was first published in 2012, CRISPR has swept through the scientific community. On Wednesday, the US National Academy of Sciences published a report on the transformative potential of one such application: genetic engineering technology called gene drive. Mosquitoes are currently being engineered with “gene drives” that could render female offspring sterile and potentially wipe species of mosquitoes off the planet .

The technology could also be used to eliminate invasive species such as Japanese knotweed or to reverse herbicide resistance and make agriculture more productive. Until now, such efforts have been stymied because in changing an organism’s DNA, you are reducing its ability to survive and reproduce, meaning the changes are eventually weeded out by natural selection. Gene drives overcome this by ensuring the changes are passed to all offspring. The technology could irreversibly alter entire ecosystems. Another potential application of CRISPR is growing human organs in pigs to meet the demand from transplant recipients. Already, genetically altered pig embryos have been injected with human cells, which it is hoped will develop into pancreases that could be transplanted into humans without the risk of rejection by the immune system.

The article is here.