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Human-Mouse Hybrids?

scientistguy writes "There is a remarkable story by Nicholas Wade in the early morning edition of the New York Times about a discussion to create human-mouse hybrid organisms. One of these techniques involves the introduction of genetically altered mouse embryonic stem (ES) cells (e.g. with genes 'knocked-out' or replaced) into a developing mouse blactocyst to create progeny hybrid organisms. Typically, these progeny organisms are then bred to unaltered mice to see if the genetic alteration has gone germline or is heritable. If heritable, mice can be bred and animals which are homozygous for the altered gene can be phenotypically examined as long as the manipulation is not homozygous lethal or cause sterility in a single copy state. Unless using blastocysts from immunologically crippled mice, there would most likely be a recognition of non-self by murine immune cells not educated (which haven't seen during their development) to the human cells that would wipe them out. Nonetheless, it's amazing that it's being contemplated due to the ethical implications of such an experiment. What if it were viable? What if there were more than just a few human cells? Could it be sacrificed? ... or even experimented on further if part 'human'? Perhaps these types of experiments are best relegated to little known, deserted islands far away from the reaches of civilization (or perhaps regulation) ..."

20 of 409 comments (clear)

  1. Where...? by MrFenty · · Score: 5, Funny
    Perhaps these types of experiments are best relegated to little known, deserted islands far away from the reaches of civilization (or perhaps regulation)

    What - like Australia ?

    1. Re:Where...? by e8johan · · Score: 5, Insightful

      These kind of moves are actually dangerous. If the civilized world chooses to ban something of some reason (hopefully a good one), one can just go to a poor country and be fully legal.

      We recently saw this when an oil tanker collapsed just off the coast of Spain. The tanker was registerd in Bermuda (or somewhere around there). Thus it was sheaper taxwise, less regulated working-environment and safety wise and could therefore go to sea without being sea worthy.

      We can also see this in the research of the (somewhat) mad Italian sientist, Dr. Severino Antinori. He claims to creating the first cloned human and that it is going to be born early next year. He refuses to say where the experiment has been made, but it is in a country with weaker legalization than most western contries.

      To sum things up. This type of experiments will probably have to go to some little known, desterd island, but I regret that they can.

  2. Ehhhhhh by Uruk · · Score: 5, Funny

    blactocyst to create progeny hybrid organisms

    Good god! Don't you understand the implications though? If the digital tri-mode defrobulator gets out of sync with the anticalisthenticator, we could have some serious subdermal anamolous activity!

    Open your eyes man!

    (I just thought the sentence sounded funny the way it was strung together, even if I do have enough biology to know what a blastocyst is and to recognize when it's misspelled)

    --
    -- Truth goes out the door when rumor comes innuendo. -- Groucho Marx
  3. Are you a man or a mouse ? by MosesJones · · Score: 5, Funny


    Oh very freaking funny you insensitive clod!

    --
    An Eye for an Eye will make the whole world blind - Gandhi
  4. I'm horrified... by YanceyAI · · Score: 4, Interesting
    I consider myself open to scientific experimentation, but I guess I just never really considered this as a possiblitlity. I'm surprised that it never crossed my mind. This issue was bound to be raised. Even more disturbing to me is the fact that my repulsion is seems more emotional than logical--a characteristic I associate with rightwing conservative freaks. One telling comment though:

    He gave as an extreme example the possibility that a mouse making human sperm might accidentally be allowed to mate with a mouse that had made its eggs from human cells. He gave as an extreme example the possibility that a mouse making human sperm might accidentally be allowed to mate with a mouse that had made its eggs from human cells.

    --
    Can I bum a sig?
    1. Re:I'm horrified... by sawilson · · Score: 4, Funny

      I consider myself open to scientific experimentation

      That's pretty brave. I'm just an organ donor myself.

    2. Re:I'm horrified... by Kronus · · Score: 4, Informative

      Don't be so afraid, the reporter got almost all his facts wrong. There will be 0 (zero) human cells in the chimera. That's not the way this procedure works. The genetic material is put in the blastocyst, and is then absorbed by some of the cells there. Those cells can then (in theory) produce the proteins that the absorbed genes code for. So the mouse's brain might have some human protiens in it, but it would still be a mouses's brain.

      Also, the Bishop's comment about a few human cells per organ being acceptable: not the way it works. As I said, there will be NO human cells, and the modified cells will come in patches. As a modified cell in the blastocyte divides, all it's progeny will have the modifications, so you'll end up with an area in the adult organism that has the modifications. Is it really too much to ask that the people who are trying to make these ethical decisions put in the effort to actually learn what they're talking about before passing judgment?

  5. So potentially, by sawilson · · Score: 5, Funny

    If this research continues, it might only take
    1000 genetically altered monkees 10 years to create
    the collective works of shakespeare. You probably
    wouldn't have to lock them in a room either. They'd
    of course be superior and have 3 asses.

  6. Hardware vs. software by ites · · Score: 5, Interesting

    To understand the true impact of genetic research, look at it like this: today we still see life as hardware, something that has physical shape. We are rapidly approaching the state where we will see life as software, something to be programmed and copied infinitely cheaply.
    Human-mouse hybrids? So what. Within a generation you will be able to design any lifeform you can imagine on your computer screen, and 'print' it into a virgin cell that will grow into your animal or plant.
    It is an inevitable progression. DNA is a digital code, and it is just a matter of horsepower to crack and then manipulate it.

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  7. Can't resist... by TeknoHog · · Score: 5, Funny

    This Human-Mouse hybrid sounds like a great advance in the computer interface design. At least it would remove one bottleneck. Soon we'll outquake even Dustpuppy (he uses a separate mouse).

    --
    Escher was the first MC and Giger invented the HR department.
  8. I am sure I am not the only one bothered by this.. by GeckoFood · · Score: 5, Insightful

    This kind of research always frightens the snot out of me. Without trying to sound like a holier-than-thou type, I can't help but think that this type of science is dabbling a little beyond the realm of what we should be working on.

    On the bright side, I would suspect that such organisms don't live long enough to make a whole lot of difference. Some odd hybrid creature created through such means would be bound to have some hideous problems.

    Maybe there is some benefit to this type of research, where we will get better medicines, or a better understanding of how our own body is put together. That said, I disagree with the method.

    Flame away.

    --
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  9. babelfish by nmg196 · · Score: 4, Funny

    I don't understand. Is there an English copy?

    I shoved that into babelfish but it didn't come up with anything - no matter what language I selected...

  10. Ethical Problems? They already do it. by Gary+Franczyk · · Score: 5, Interesting

    Why are they having ethical problems with it? It is already being done in a smaller scale all the time. If I understand it correctly, in order to create recombinant monoclonal antibody drugs like Remicade, they place human antibody genes into a bacteria and have the the bacteria pump out antibodies.

    People complain and say that scientists should not make half-animal-half-man creatures and mix creatures. Just because it doesn't LOOK like some sort of chimera doesn't make it NOT a chimera.

    Isn't antibody engineering and this the same thing?

  11. Don't worry, mice aren't animals. by jonbrewer · · Score: 5, Interesting

    Nor are birds. At least according to the US government. They excluded from protection under animal welfare laws, and thus should not be worried about, eh?

    The actual exclusion is set down in 9 CFR part 1, and reads as follows:

    "Animal means any live or dead dog, cat, nonhuman primate, guinea pig, hamster, rabbit, or any other warmblooded animal, which is being
    used, or is intended for use for research, teaching, testing, experimentation, or exhibition purposes, or as a pet. This term excludes: Birds, rats of the genus Rattus and mice of the genus Mus bred for use in research, and horses not used for research purposes and other farm animals..."

  12. Asimov already addressed this. by pete-classic · · Score: 4, Interesting

    We can experiment on it (treat it as property) until it asks us to stop.

    -Peter

  13. You know what this means don't you? by trcooper · · Score: 4, Funny

    They're creating an army of Mouse-men to take over the world. An army of millions that will scurry out of rural corn fields and take over America.

    Fortunately I am almost finished designing a giant trap that will prey on the one weakness they neglected to genetically correct, Sweet, sweet, cheese.

  14. Re:I am sure I am not the only one bothered by thi by d_i_r_t_y · · Score: 5, Interesting

    ...what we should be working on

    as a PhD-level biochemist/molecular biologist, i can tell you that seemingly pointless experiments such as these provide the necessary knowledge, or building blocks if you will, for us to understand the very complex process of growth and development. it's impossible to know to fix things if you don't know how they work and why they're broken.

    you, the public, should know that any form of experimentation on any living thing with a backbone and a nervous system is *highly* regulated, as in many forms to fill out, a review committee, certification of the researcher following compulsory courses, etc.

    it is unfortunate that the mainstream press *always* focus on the "freakish" aspect of science research, and not the "big picture". the bottom line is that in order for us to tackle the "big" issues in science and medicine, we need to experiment on living things. full stop, underline. of course i agree that there is an ethical aspect to certain areas of research that should not be neglected, but right now the ethical bar is being set way too low because of uninformed, negative spin on the part of the press.

    we have been "genetically engineering" bacteria for over 20 years with no complaints nor public profile, and that research has directly and indirectly contributed immensely to various gene therapies and diagnostics, and to the mechanisms of viral and bacterial disease. the second that genetic engineering (improvement) of foodstuffs is mentioned, bang! alarm bells! when in fact, the bacterial and viral genetic engineering of the past 2 decades has posed a far greater risk of something going "wrong" or of some malevolent person engineering a super-ebola with a one week latency period (in which case we'd all be fucked big time). genetic engineering of food has the potential to solve or at least lessen the ongoing starvation of millions (while we continue to worry about whether we should upgrade to the latest video card...).

    now take stem cell research. so what, stem cells. science operating the way it does, the vast majority of stem cells come from people who've died and/or aborted foetuses, not living creatures or "stem cell factories". i know, sounds icky, but stem cells are hugely important in terms of their scientific value and potential outcomes to mankind. and let's face it, once dead, a person's bone marrow is of no use to anyone else, right?

    what society needs is some perspective. bush and gov can spin the ensuing iraq invasion in such a manner that many americans think it's kindof OK to *invade* a country and kill thousands of people for the sole reason that bush doesn't like their leader. if thousands of lives of living, breathing people can be wasted for oil, then why should we not make use of those passed away by natural causes to help the living? you.. your sister... your mother... your neighbour...

    to be a scientist is to revere life and the process of living above all else. you should have more faith in us to do what is right. better yet, inform yourself about the issue or ask a friendly neighbourhood science pal and thrash out the real issues.

    obviously, this is an issue close to my heart...

  15. Re:I am sure I am not the only one bothered by thi by The+Good+Reverend · · Score: 5, Insightful

    I can't help but think that this type of science is dabbling a little beyond the realm of what we should be working on.

    You've just described popular opinion about most branches of science on the verge of breaktrhough, including biology (genetics) and particle physics (splitting the atom), among others. If we stopped science when it was deemed "beyong the realm of what we should be working on", we'd be living in caves.

  16. Some reason (hopefully a good one) by Pac · · Score: 5, Insightful

    An instance of "civilized" country has been recently letting the religious right decide what can and what can not be researched. Steem-cell and cloning studies are being banned because some religious texts were interpreted as saying that this sort of thing is "unholy". As it is, people who does not share this view of the Universe will eventually find ways to keep studying these subjects somewhere else. I don't regret it, because after carefull consideration I find the maddest scientist far saner than the saner right-wing fundamentalist.

    Also, moving services and "dirty" plants to unregulated countries and the subsequent pressure (mostly economic but sometimes even military) to keep these countries unregulated is caused mainly by the major corporations of "civilized" Western countries, not by mad scientists or WTO eco-freaks. You should ask yourself who is served by a cheaper oil tanker (or a cheaper Nike produce by Vietnamese semi-slaves).