Episode Transcript
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Speaker 1 (00:00):
Bloomberg Audio Studios, podcasts, radio news.
Speaker 2 (00:09):
Brian Wallach is forty five years old, a husband and
a father of two. For much of his life, he
worked as a lawyer and political organizer, even serving as
White House counsel under President Barack Obama. But eight years
ago he received a devastating diagnosis.
Speaker 3 (00:27):
I was diagnosed with ALS in twenty seventeen at the
age of thirty seven.
Speaker 4 (00:32):
My wife, Sandra, and I.
Speaker 3 (00:34):
Had just brought our second daughter home when we received
the news.
Speaker 2 (00:38):
ALS, known widely as lou Gehrig's disease, is a neurodegenerative
disorder where motor neurons are gradually lost, leading patients to
slowly lose control of their bodies.
Speaker 3 (00:50):
For me, this has meant a gradual loss of my
ability to walk, use my hands, and speak.
Speaker 2 (00:57):
At the time, Brian was given six months to live.
Speaker 4 (01:00):
I couldn't accept that timeline.
Speaker 3 (01:03):
Instead, I chose to fight with everything I had to
change it.
Speaker 4 (01:07):
Eight years later, I'm still here.
Speaker 2 (01:11):
Today. Brian and his wife Sandra are advocates for the
more than thirty thousand Americans living with ALS. They founded
the nonprofit I Am ALS in part to advocate for
research funding for cure, and some of the most exciting
als research to date is coming out of China.
Speaker 1 (01:30):
China is trying to have the companies do something that
nobody in the world has ever done. That is China's goal,
like to be a global bow tech leader.
Speaker 2 (01:41):
That's Bloomberg's Asia Health reporter Carolyn Khan Jesus. China is
taking a controversial approach to finding cures to diseases like als.
Speaker 1 (01:51):
China sees gene editing in animals as one of the
key aspects of bow tech development.
Speaker 2 (01:59):
Gene editing. The US and Europe take a strict approach
to gene editing animals, in particular large animals like pigs, monkeys,
and dogs, but as China's biotech industry grows, its use
of gene edited large animals has expanded.
Speaker 1 (02:14):
So for years, this professor that Eachang at Siwa University
was studying to find a solution to als, and his
lab was making als animal models. First, they were putting
the disease into mice, but mice didn't show any symptoms.
It never worked down mice, but then he gene edited
a pig. The pig developed symptoms of ALS and then
(02:38):
died about a year later. This was significant because Professor
that Eichan was able to replicate a human disease into
a big animal, which allows drug developers and scientists to
test the full side effects.
Speaker 2 (02:52):
By comparing the pig's reaction to that of mice models,
John discovered a clue a gene acting uniquely in the
mice that led to the development of a new drug
he says could help ninety percent of als patients. The
US Food and Drug Administration has approved the therapy, named
snuggo I, for human trials this year. China is betting
(03:14):
that drugs like these could help its biotech industry move
from creating mostly generic drugs to the far more lucrative
business of making patented medications. But the practice of using
large gene edited animals in the drug development process is
raising ethical questions. Carolyn says Professor Jah himself was conflicted.
Speaker 1 (03:34):
He was definitely happy because for all the years work,
you see something that's becoming successful. But he also mentioned
he was sorry film the creature to develop that. But
again back to this argument, like what is right, what
is wrong? How much can you do this? Where should
we draw the line right?
Speaker 2 (03:59):
This is the big take. Asia from Bloomberg news I'm Wanha.
Every week we take you inside some of the world's
biggest and most powerful economies and the markets, tycoons, and
businesses that drive this ever shifting region. Today on the show,
we find out how far China has come and how
far it's willing to go to become the world's biotechnology superpower,
(04:21):
and whether it could really challenge the West. China has
big ambitions in the biotechnology industry. Over the past ten years,
it's ramped up spending and drug development, and it's made
changes to much of its regulatory regime to mirror Europe.
(04:43):
In the US, China's biotech firms have gotten lots of
financial help from the government and the explicit support of
Chinese present Shijinping. In twenty sixteen, she said the country
should become a global scientific and technology power, and he
declared biotech and gene editing as strategic priority.
Speaker 1 (05:01):
Cdmps do yet.
Speaker 2 (05:05):
Bloomberg's Carolyn Kahn says until recently, China's biotech industry was
known for making generic drugs. Today, though it's focused on
innovation and creating new proprietary medications.
Speaker 1 (05:18):
Because generic drugs, just to putay simple, it doesn't make money.
Speaker 2 (05:23):
China used to be a distant third to the US
and Europe when it came to creating new drugs, but
last year it came up with more than twelve hundred
new formulations, meeting out Europe and closing in on the US.
In twenty fifteen, China was home to just five of
the world's top fifty innovative drug companies.
Speaker 1 (05:41):
Today, twenty of the fifty companies that are generating the
highest number of innovative drugs and now from China.
Speaker 2 (05:51):
China's move to dominate global biotech was formally revealed in
twenty sixteen in the country's five year Plan. The plan
opened the door for China to begin using what has
become one of the most effective tools, biobreeding, or genetic editing.
Andy Greenfield is a geneticist and reproductive biologist at the
University of Oxford. Scientists have been working on this technology
(06:14):
since the nineteen seventies, but Andy says they've only recently
learned how to actually edit an animal's genetic code.
Speaker 5 (06:21):
The most common way to do that these days would
be to use Crispacas nine, which is a gene editing
tool that we've had now for over ten years.
Speaker 2 (06:31):
Andy says gene editing an animal is complicated enough, but
using that animal to cure a disease is more complicated.
Still is not always clear which genes need to be
targeted to replicate the disease. Figuring that out is expensive
and time consuming.
Speaker 5 (06:48):
So for example, DNA, it might be you want to
specifically model what happens when you change one aminum acid
in a sheep or a goat or a mouse, and
that could be chicky because it means that other things
could happen in the process of trying to edit that gene,
which are undesirable and unwanted.
Speaker 2 (07:07):
When gene editing technology first started being used, scientists worked
almost exclusively on gene editing in mice, but over time
they began editing the genomes of larger animals. Andy says
large animal models are most helpful to scientists when rodents
aren't big enough or won't live long enough to be
able to mimic a disease.
Speaker 5 (07:28):
When it comes to neurological disorders, to model human neurological
disorder once requires having a brain which is at least
comparable to the human brain, perhaps which develops a condition
over time which isn't always possible when a road model
where the average mouse only lists for six months.
Speaker 2 (07:47):
Drugs that treat neurological diseases are prized in the drug
development world because they're so difficult to make. China has
several under development, including snug O one.
Speaker 1 (07:57):
There are definitely a lot of innovative drug in the pipelines,
but the drug development takes, if not decase, at least
it is and in that process you constantly need money
to pull into the pipeline.
Speaker 2 (08:11):
To support making these drugs and its broader biotech ambitions.
China has built eight animal research centers since twenty ten,
and it keeps tens of thousands of animals in these facilities.
Scientists can apply to them to get a certain type
of monkey or a certain type of pig for their research.
Speaker 1 (08:29):
So the centers, you go to their website, they proudly
exhibit what they have this animal, this monkey, whatever gene
is altered with whatever foundation. There are also the biotech
companies now trying to gene added the dogs.
Speaker 2 (08:50):
As if gene editing wasn't controversial enough, China is also
pushing into an even more sensitive area of biological research, cloning.
Speaker 1 (08:58):
Actually, China clone the world's first dog with a certain
gene edited disease, and also it cloned the world's first
monkey with a certain gen edited disease.
Speaker 2 (09:10):
Chinese scientists first edited the genes of monkeys that had
sleep disorders, anxiety, and depression. They then clone the animals
to create a larger pool of patients with the same ailments,
all with the idea of accelerating drug development.
Speaker 1 (09:25):
In the top universities of the research institutes, there are
scientists doing monkeys, for example, to develop them into having autism.
Speaker 2 (09:36):
And Carolyn says the companies involved in gene editing and
cloning don't just run experiments on the animals, they also
sell them. Last year, the global market for genetically modified
animals in biomedical research was estimated at fifteen billion dollars,
more than twice what it was less than a decade ago,
and China has become one of the biggest suppliers of
(09:57):
lab animals in the world.
Speaker 1 (10:00):
It has probably the world's biggest population of monkeys that
is commonly used in developing drugs and vaccines.
Speaker 2 (10:07):
Editing the genes of larger animals like monkeys or the
pig that Jaii Chang used to treat als is still
controversial in the West.
Speaker 1 (10:15):
We reach out to the Chinese government for commons. We
sent a request three times, but we didn't get any
answer from them. We ask how to regulate the industry,
especially when there's so much demand on, you know, this
kind of research, but the animal welfare law is not
there yet in place.
Speaker 2 (10:37):
While the US does allow the use of large animal models,
the majority of the twenty million lab animals used in
the States are mice. Animal welfare is a major factor,
and while Carolyn says it's also a concern for Chinese scientists,
it tends to be weighed differently.
Speaker 1 (10:53):
I think a lot of scientists believe that what China
is doing now, even the kind of work that is
limited to the lapse to the university, to the research institutes,
while in the future, contribute to China's advancement in the
ribberry with the US, with Europe, because China is doing
(11:16):
something that is very hard to be down right now.
In the West.
Speaker 2 (11:24):
Coming up, we look at how reliable animal experiments are
for developing therapies, the alternatives, and what the future could hold.
(11:44):
Gene editing is a big, fast growing business in the
agricultural sector. Scientists have found ways to develop cows without
horns and salmon that grow faster to adulthood. Gene editing
is also growing more popular in the area of science
and drug research too, although exact numbers are hard to
pin down, but Bloomberg's Carolyn Kahn says one thing is apparent.
(12:08):
Genetically engineered animals are increasingly in demand.
Speaker 1 (12:12):
It is an increasingly important strategy to have good animals,
larger animals, animals that can better mimic human disease.
Speaker 2 (12:22):
And if you want to work on these kinds of animals,
China is the place to go. Carolyn says that's because
there's not much oversight in the country's labs, and the
main focus is on disease control, not animal welfare.
Speaker 1 (12:36):
If we're talking about how the animals are treated, I
think nobody knows. It's like behind the door, behind the gate.
They need to have the environment that is joy and
clean and keep them way from bacterial or bogs. So
that's a basic standard.
Speaker 2 (12:52):
Carolyn says. The only real rule China has is not
to mistreat the animals.
Speaker 1 (12:57):
There's actually just one sentence in the regulation which says
people who are dealing with the animals in the lab
should not pease or mistreat them. So that's it about
animal suffering. Animal rights or animal welfare is still something
(13:18):
that is considered to be Western ideology.
Speaker 2 (13:24):
There isn't a unified animal rights charter, but there are
principles developed in the nineteen fifties that most scientists follow of.
Speaker 5 (13:32):
Three hours which apply to the use of animals in research.
So the three hours reduce, replace, and refine. So we're
meant to be reducing the number of animals that we
use in research ultimately with a view to replacing the
use of animals in research by other methods. And when
(13:52):
we do have to experiment on animals, we have to
ensure we continually refine our experientation so that it causes
the least a suffering to the animal. Now, when we
say can we replace the use of animals, that would
mean that there's an alternative, for example, an alternative methodology
or alternative experiment that would still yield the same scientific information.
Speaker 2 (14:16):
And while China is doubling down on using animals more
for research, in the West, governments are trying to push
scientists in the opposite direction. In April, the FDA released
a roadmap to reduce animal testing by pointing to alternatives
like lab drawn human organs and artificial intelligence models, and
the National Institute of Health points out that the use
(14:38):
of animals to model human diseases like Alzheimer's and cancer
has had only inconclusive results.
Speaker 5 (14:45):
So, for example, today it might be possible to use
human organoids, little mini organs that can be grown in
a dish using stem cells, So it's possible to use
many kidneys and mini brains, etc. And that may be
an alternative, always be an alternative, but it may be
an alternative to using an animal.
Speaker 2 (15:04):
Andy Greenfield says, despite advances like the als drug developed
from a pig in China, it's still not clear how
useful gene edited animals are when it comes to finding
cures for disease.
Speaker 5 (15:16):
You might expect there to be more progressing those countries
which permit those kind of diseases, but nothing is necessarily
the case, because some of those models that they generate
may end up being dead ends, they may end up
not being particularly good models, so it is known. I
don't think there's any necessity here, but I suspect perhaps
the probability goes up that they will at some point
(15:37):
find a model which is very very useful for understanding
the human condition. Research is just unpredictable. It doesn't go
in a simple linear fashion.
Speaker 2 (15:47):
A review article by JOHNS Hopkins Bloomberg School of Public
Health found that fewer than ten percent of animal experiments
resulted in therapies used by patients. Meanwhile, public sentiment in
the world west is turning against animal testing. In the
US and Europe, activists have shut down labs and forced
airlines to halt shipments of primates. They've also staged protests
(16:11):
outside dog breeding facilities that lasted years.
Speaker 5 (16:14):
I think it's important in any country policy makers have
an understanding of popular attitudes. Though the attitudes that the
public will have I'm sure will be complex. It will
be well, yes, but only with the following conditions. In
the UK, for example, we are allegedly at a nation
of animal lovers, so we claim, but it depends on
(16:34):
the context. If I look out my window, I will
see people walking their dogs every day, so there is
that sense of love of animals in this country. But
we still eat factory farm chickens in this country, where
there's been untold descriptions of potential harms to those chickens
during their relatively short lives.
Speaker 2 (16:53):
Carolin says, in China, the public sees animal testing in
a positive light in large parts thanks to the state
media in China.
Speaker 1 (17:03):
I think, especially state media, when they report on those topics,
it's always like a celebration. It feels like this is
a technology advancement. Right, China is catching up or even
bit better in this field, So it's always like people
celebrating this great thing. Rarely anyone doubts or even read
(17:25):
the question of the ethical issues of animal testing gene modification,
especially large animal.
Speaker 2 (17:34):
But China has come across a red line. In twenty nineteen,
one scientist had Jankoi carried out experiments on human embryos
to give them protection against HIV.
Speaker 1 (17:46):
So that was a scandal that he can shake not
only China but global scientific community.
Speaker 2 (17:52):
He was jailed for three years and the government cracked down. Now,
experimentation on humans is strictly regulated, but when it comes
to animals, pretty much anything goes. Professor John the man
who developed the als therapy from a gene edited pig,
told Carolyn that he has no qualms about using animals
to find cures for humans.
Speaker 1 (18:14):
He feels so happy that China stew Is in the
direction like to support animal research because he believed animal
models is not going to be replaced in the near future.
Speaker 2 (18:28):
Carolyn says, the way Chinese scientists see it, animal testing
is a necessary part of the process, a way to
potentially prevent humans from suffering.
Speaker 1 (18:39):
For human patients, there are so many patients quietly dying
and no solutions, especially those rare disease. There's no investment
because not so many people need the drugs right, So
that's the rare disease patients. They are really struggling to
(18:59):
get in enough attention to get enough for help, and
they are really frustrated. They are in a kind of
sitution that those scientists think maybe we should have more
femassy too than a mouse.
Speaker 2 (19:18):
This is The Big Take Asia from Bloomberg News. I'm wanha.
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