Showing posts with label gene editing. Show all posts
Showing posts with label gene editing. Show all posts

21 August 2022

Thence We Will Create Superhumans

by Corinne Othenin-Girard *


IMAGINE A WORLD IN WHICH parents have the option to go to a geneticist to discuss the ‘genetic fix’ choices of their unborn child.

If you should think that this is a fantasy of a dystopian fiction, you would be mistaken. Not only is the above, to a point, technologically possible today, but the parents' option could be made possible, too, in the not-too-distant future. 

Human Genome Editing is a kind of genetic engineering, where DNA is deleted and inserted, modified and replaced. 

The main argument in support of this technology is that it would be used to prevent the transmission of genetic diseases from one generation to the other. 

There seems now to be an instrumentalisation of individuals with disability, which means that concepts become instruments which serve as a guide to action. The proponents of (Germline) Genome Editing are using ‘the prevention of disability’ as a concept that coincides with how people with disabilities are usually portrayed and viewed by the broad public. 

There are two kinds of such editing—Somatic Genome Editing, and Germline Genome Editing—and there are, broadly, three possible applications. These applications include the following: 

1. Somatic Genome Editing is performed in the non-reproductive cells, and may contribute to treating diseases in existing individuals. It is said that it has the potential to revolutionise healthcare. A stunning success of this method was shown recently in the (possibly permanent) cure of hemophilia. And by now nearly 300 experimental gene-based therapies are in clinical testing. Changes made by somatic genome therapy are not passed down to future generations.

2. Germline Genome Editing is performed in early-stage embryo (before ‘it’ is even called an embryo), or in germ cells (sperm and egg cells). These modifications affect all cells of the potential future child, and will also be passed on to future generations. This technology would be used to prevent the transmission of diseases from one generation to the next. In other words, Genome editing would be used for fixing genetic ‘defects’ or ‘variations’ which cause rare diseases. Germline Genome Editing does not treat, cure, or prevent disease in any living individual. It is used to create embryos with altered genomes. 

3. From there on, the technology of Germline Genome Editing will inevitably expand into the area of generating ‘new’ or ‘improved’ abilities. Any gene can change, based on the ability-development it promises. ‘Treating disease’ or ‘preventing disability’ would therefore merge with ‘enhancement’. If genome editing should be deemed to be ‘sufficiently safe’, it could be applied to all kinds of gene variations—and that which is seen as ‘normal’ might be up for debate. The proponents of enhancement by genome editing mean to improve the human body and mind to its maximum potential. They conceive the natural human body as limited, defective, and in need of improvement, and support functioning beyond species-typical boundaries. 

Assuming that so-called ‘glitches’ of gene editing would be overcome, is it ethically acceptable to use this technology in order to ‘design’ future babies? It has already been done, in fact, and this issue has already come up, through the so-called CRISPR-Baby Scandal. In 2018, a Chinese researcher He Jiankui made the first CRIPRS-edited babies, twin girls called Lulu and Nana. Many researchers condemned his action. The actual editing wasn’t executed well. 

At the moment, public opinion is thought to carry a lot of weight. Therefore, various polls have been conducted to assess it. For example, the parent may have a severe heritable muscle disease: whether gene editing for (unborn) babies is acceptable, when it greatly reduces their risk of serious diseases or conditions. Assuming, again, that the technology is safe and effective. 

But for the technology to be declared as safe, don’t individuals with changed DNA need to be monitored throughout their life? 

The emerging field of enhancement medicine is due to push the boundaries through genetic manipulation, and will apply a shift to what is the human norm. 

Would using genome editing technology to create the 'perfect' or 'ideal' human risk making us become less tolerant of 'imperfections'? A person who couldn't embrace the norm of perfection would be perceived as 'disabled' and not as a person with a difference that needs to be sustained.

A genuinely inclusive and pro-equality society has no preferences between all possible future persons. Instead all existing and future individuals are perceived as having equal worth and value.

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* Corinne Othenin-Girard is a PhD student in sociology in Basle, Switzerland. She is currently working on a participatory project on the topic of Human Germline Genome Editing. Corinne invites readers of Pi to join a Zoom Conference, 9 September 2022 on Human Germline Gene editing (HGGE), more specifically on how it could change the future of humanity.

16 March 2020

POETRY: A Greater Question (concerning the new coronavirus)


Posted by Chengde Chen * and Yingfang Zhang
Part II 
“Genetic engineering technology is designed to enable genes to cross species 
barriers.” – Martin Khor, New diseases as viruses break species barriers… 



The people in the Doomsday horror are speculating:
Is the virus destroying mankind man-made?
If so, by whom?
Some suspect China, while others, America

But a greater question is if science can do it
If it can, won’t the disaster happen sooner or later?
Hiroshima/Nagasaki was a continuation of atomic physics
Chernobyl was what nuclear technology had entailed

When scientists said they didn’t do it this time
It meant they had been able to
So, whether it was man-made this time, or by whom,
Has been a relatively–secondary question!

If it has been possible, then it is inevitable –
A fatal car-crash for the driver is a matter of time
If we still can’t see science is such a car for mankind
What does it matter if it happens this time or the next?



* Chengde Chen is the author of the philosophical poems collection: Five Themes of Today, Open Gate Press, London. chengde.chen@hotmail.com

23 February 2020

Poetry: Critique of Genetic Engineering


Posted by Chengde Chen *

“Genetic engineering technology is designed to enable genes to cross species 
barriers.” – Martin Khor, New diseases as viruses break species barriers 


Genetic engineering has a million benefits,

While I have only one reason against it.

But, any number multiplying a zero becomes a zero.

Science is supposed to support human existence;

If genes are written by all historical conditions of nature,

Isn’t quoting them out of context man outlawing himself?
 


The temperature on the Earth’s surface is within ±50ºC

A very small range in the grand thermometer of the universe,

But just the home for us – the creature of 37ºC – to survive.

Believers marvel at God’s arrangement, yet it’s only nature.

All existing species are adapters to this condition;

Those not, either never had a chance, or have been eliminated.

 

Should God, seized by a whim, play at “planet engineering”

Rearranging the order of the solar system, what would happen?

If Earth moved one step inwards to the position of Venus,

The mighty 480ºC would evaporate us into clouds.

If Earth moved one step outwards to the position of Mars,

The minus 140ºC would cast us into super-ice.


Earth is in our genes.

Genes are nature’s vertical memory and horizontal logic.

The process of adapting and eliminating carves all specifications.

The billions of codes are billions of doors and locks without keys,

Shutting out foreign viruses with DNA incompatibility

So we don’t catch cats’ flu, nor do dogs get our hepatitis.
 


Yet, manufactured genes come suddenly

Sharing no responsibility of history but short-circuiting species.

When transgenic pig organs are implanted into humans, 

Pig viruses also leap over millions of years to join us.

To gain medical benefits by dismantling the species barriers, 

It’s self-disarming to the bone or tying oneself up to WMD?
 


The biological world is a self-contained all-dimensional computer;

Messing up one sequence could throw the whole system into chaos,

Which is asking God to restart His creation all over!

So He’d rather we mess about with the planets than modify genes.

“If you must,” He may say, “modify Mine first to have a GM god 

To recreate the world, I’d need enhanced energy and perseverance.” 




* Chengde Chen is the author of the philosophical poems collection: Five Themes of Today, Open Gate Press, London. chengde.chen@hotmail.com

10 March 2019

Are ‘Designer Offspring’ Our Destiny?

The promise of gene editing and designer offspring may prove irresistible

Posted by Keith Tidman

It’s an axiom that parents aspire to the best for their children — from good health to the best of admired traits. Yet our primary recourse is to roll the dice in picking a spouse or partner, hoping that the resulting blend of chromosomes will lead to offspring who are healthy, smart, happy, attractive, fit, and a lot else. Gene editing, now concentrated on medical applications, will offer ways to significantly raise the probability of human offspring manifesting the traits parents seek: ‘designer offspring’. What, then, are the philosophical and sociological implications of using gene editing to influence the health-related wellbeing of offspring, as well as to intervene into the complex traits that define those offspring under the broader rubric of human enhancement and what we can and ought to do?
‘All the interests of my reason, speculative as well as practical, combine in the three following questions: What can I know? What ought I to do? What may I hope?
— Immanuel Kant
The idea is to alter genes for particular outcomes, guided by previous mapping of every gene in the human body. To date, these selected outcomes have targeted averting or curing disorders, like cystic fibrosis, Huntington’s, and sickle-cell disease, stemming from gene mutations. As such, one of the central bioethical issues is for parents to freely decide which disorders are ‘unacceptable’ and thus to prevent or fix through gene editing. The public, and the medical field, already make similar medical decisions all the time in the course of treatments: stem cells to grow transplantable organs, AI-controlled robotic surgery, and vaccinations, among innumerable others. The aim is to avoid or cure health disorders, or minimally to mitigate symptoms.

As a matter of societal norms, these decisions reflect people’s basic notions about the purpose of health science. Yet, if informed parents knowingly choose to give birth to, say, an infant with Down syndrome, believing philosophically and sociologically that such children can live happy, productive lives and are a ‘blessing’, then as a matter of ethics, humanitarianism, and sovereign agency they retain that right. A potential wrinkle in the reasoning is that such a child itself has no say in the decision. Which might deny the child her ‘natural right’ not to go through a lifetime with the quality-of-life conditions the disorder hands her. The child is denied freely choosing her own destiny: the absence of consent traditionally associated with medical intervention. As a corollary, the aim is not to deprive society of heterogeneity; sameness is not an ideal. That is not equivalent, however, to contending that a particular disorder must remain a forever variation of the human species.
‘We are going from being able to read our genetic code to the ability to write it. This gives us the … ability to do things never contemplated before’
— Craig Venter, writing in ‘Heraclitean Fire: Sketches from a Life Before Nature’.
Longer term, people won’t be satisfied limited to health-related measures. They will turn increasingly to more-complex traits: cognition (intelligence, memory, comprehension, talent, etc.), body type (eye and hair colour, height, weight, mesomorphism, etc.), athleticism (fast, strong, agile, endurance, etc.), attractiveness, gender, lifespan, and personality. The ‘designer offspring’, that is, mentioned above. Nontrivially, some changes may be inheritable, passed from one generation to the next. This will add to the burden of getting each intervention right, in a science that’s briskly evolving. Thus, gene editing will not only give parents offspring that conform to their ideals; also, it may alter the foundational features of our very species. These transhumanist choices will give rise to philosophical and sociological issues with which society will grapple. Claims that society is skating close to eugenics —a practice rightly discredited as immoral — as well as specious charges of ‘playing God’ and assertions of dominion may lead to select public backlash, but not incurably so to human-enhancing programs.

Debates will confront thorny issues: risk–reward balance in using gene editing to design offspring; comparative value among alternative human traits; potential inequality in access to procedures, exacerbating classism; tipping point between experimentation and informed implementation; which embryos to carry to term and childhood; cultural norms and values that emerge from designer offspring; individual versus societal rights; society’s intent in adopting what one might call genetic engineering, and the basis of family choice; acceleration and possible redirection of the otherwise-natural evolution of the human species; consequences of genetic changes for humanity’s future; the need for ongoing programmes to monitor children born as a result of gene editing; and possible irreversibility of some adverse effects. It won't be easy.
‘It is an important point to realize that the genetic programming of our lives is not fully deterministic. It is statistical … not deterministic’ 
— Richard Dawkins
The promise of gene editing and designer offspring (and by extension, human enhancement writ large) may prove irresistible and irreversible — our destiny. To light the way, nations and supranational institutions should arrange ongoing collaboration among philosophers, scientists, the humanities, medical professionals, theologians, policymakers, and the public. Self-regulation is not enough. Oversight is key, where malleable guidelines take account of improved knowledge and procedures. What society accepts (or rejects) today in human gene editing and human enhancements may well change dramatically from decade to decade. Importantly, introducing gene editing into selecting the complex traits of offspring must be informed and unrushed. Overarching moral imperatives must be clear. Yet, as parents have always felt a compelling urge and responsibility to advantage their children in any manner possible, eventually they may muse whether genetic enhancements are a ‘moral obligation’, not just a ‘moral right’.