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Stem Cells From Fat Create Beating Heart Cells

Amenacier writes "Melbourne scientists recently discovered that stem cells isolated from human fat could be made to turn into beating heart muscle cells when cultured with rat heart cells. This discovery may lead to the use of fat stem cells in repairing cardiac damage, or fixing such cardiac problems as holes in the heart. It is proposed that culturing the stem cells with rat heart cells allows them to differentiate into heart muscle through signals from the rat cells. In the future it may be possible to inject/transplant the stem cells into the damaged area and have them naturally differentiate into the type of cell required, with only the natural stimuli provided by surrounding cells, without any danger of rejection by the body. Quoting: 'The next step is to implant the human heart cells onto the damaged heart of a laboratory rat to see whether they repair the heart. Then they would be trialled in higher species such as sheep and pigs before human applications could be considered. Clinical application could be five years away ...'" The Age has a multimedia treatment (Flash) of the discovery.

44 of 198 comments (clear)

  1. Rat hearted overlords? by rubies · · Score: 5, Funny

    Nah. We've already got those.

    1. Re:Rat hearted overlords? by Rod+Beauvex · · Score: 5, Funny

      I ask that all rat lovers mod parent down for such an insult to rats everywhere.

    2. Re:Rat hearted overlords? by gnick · · Score: 5, Interesting

      I ask that all rat lovers mod parent down for such an insult to rats everywhere.

      Pretty much off-topic, so I've foregone my karmic bonus. Mods, please be gentle.

      Rats rock. Best pets I've had. They're clean, loyal, friendly, and low upkeep. Terrific. They've even potty-trainable with less that 1-month of effort - I used to let mine run loose and kept ramps up so that they could return to their cages to crap.
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      On-topic... If we can generate stem-cells applicable to human research trans-specially, who other than PETA would continue to object?

      --
      He's getting rather old, but he's a good mouse.
    3. Re:Rat hearted overlords? by dougisfunny · · Score: 2, Insightful

      On-topic... If we can generate stem-cells applicable to human research trans-specially, who other than PETA would continue to object?

      People afraid of cloning

      --
      This is not the funny you're looking for.
    4. Re:Rat hearted overlords? by pz · · Score: 4, Insightful

      On-topic... If we can generate stem-cells applicable to human research trans-specially, who other than PETA would continue to object?

      The goal of the field is to use stem cells derived from the person being treated. The idea is it would run something like this: take a few vials of blood or a bit of adipose tissue (subcutaneous fat), send them to the lab to be turned into stem cells or precursor heart / kidney / pancreas / brain cells, inject into or near the appropriate tissue (maybe just give as a transfusion), and things will Just Work.

      The only -- ONLY -- reason people are in an uproar about this sort of work is because fetal stem cells are being used by many researchers in the field, and obtaining fetal tissue is politically charged. (There's good scientific reasons to use fetal stem cells that have to do with host rejection.) Once we can take adult cells and turn them back into pluripotent stem cells (fixing the telomeres along the way, even), or barring that can get the equivalent naive stem cells from placenta or umbilical cord tissue, we won't require fetal tissue any more and the whole issue will fade quietly as it should.

      Unfortunately, I'm on vacation, so don't have my references handy, but there are lots and lots and lots of people working on creating stem cells from adults, and there has been remarkable progress.

      So, this is a long-winded way of saying that I doubt anyone in research team from the article is considering the application for their work to be to use xenograft stem cells (from a different species), but to instead use human fat cells to create new heart tissue.

      --

      Put my fist through my alarm clock with its ding-dong death inside my ear. - The Blackjacks.
    5. Re:Rat hearted overlords? by nutrock69 · · Score: 4, Insightful

      there are plenty of people out there who believe in the sanctity and purity of the human body. so they'd protest on those grounds.

      So those people will eventually die off because they're unwilling to receive the help they'll need, while those of us that would be happy to use a lab-grown replacement heart/kidney/left-leg with no possible chance of tissue rejection would continue the human race...

      Sounds like a win-win to me...

    6. Re:Rat hearted overlords? by dbrutus · · Score: 3, Interesting

      There are a bit over 70 treatments using adult or cord blood stem cells (list here) with embryonic cells being used in zero treatments. The plasticity of embryonic stem cells is a disadvantage it seems due to the tendency towards tumor formation.

    7. Re:Rat hearted overlords? by philspear · · Score: 2, Informative

      I would be a terrible scientist if I didn't preface this with the disclamer: I could be wrong in every word, current theories may be wrong and I could also not be current. Having said that...

      The evidence suggests that adult stem cells are not pluripotent and are fate restricted. An adult stem cell population that could give rise to any cell type would be a big liability to the organism, as that would be a population of cells much closer to producing tumors than a fate-restricted stem cell.

      It is unlikely that an adult stem cell will be able to regenerate central nervous system neurons for two reasons. One: adults generally do not reproduce neurons of the CNS due to integration problems, thus after the age of 18 it appears unlikely you have a population of stem cells that can produce CNS neurons. Two: Since the neural progenitor cells line the ventricular lumen in the embryo and young children, that's where adult CNS stem cells would be. Unfortunately, this is at the center of the brain, getting to them even if they do exist would require significant damage to the brain.

      So we don't think they exist in most people, and if they did you'd have to tear apart your brain to get at them.

      Having said that, I should come right out and ask, is there evidence that you know of that adult stem cells can regenerate brain or spinal cord neurons? I'm far from an expert on that subject.

      Barring an unexpected finding that bone marrow stem cells can naturally make CNS, the barrier to using adult stem cells to make CNS seems higher than the barrier of tissue rejection and tumorgenesis.

  2. its only fair by circletimessquare · · Score: 4, Insightful

    my fat cells are killing my heart cells

    might as well sacrifice a few of them to give back what they took

    --
    intellectual property law is philosophically incoherent. it is your moral duty to ignore it or sabotage it
    1. Re:its only fair by daniorerio · · Score: 3, Informative

      They're both derived from the mesoderm, so yes same germ layer.

    2. Re:its only fair by nospam007 · · Score: 3, Interesting

      Soon there will be mobile liposuction centers every few blocks.

      "Donate your fat, save lives!"

      Not to mention "Drink beer, so you have fat to donate"

  3. Oh the irony... by gillbates · · Score: 4, Funny

    That from the fat of the overweight American comes the cure for heart disease brought on by his poor diet!

    With two thirds of Americans overweight, this is promising news.

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    The society for a thought-free internet welcomes you.
    1. Re:Oh the irony... by plasmacutter · · Score: 3, Funny

      That from the fat of the overweight American comes the cure for heart disease brought on by his poor diet!

      With two thirds of Americans overweight, this is promising news.

      for THEM..

      what about thin people like me.. they'll live forever now and have more fat daughters >: |

      --
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    2. Re:Oh the irony... by Barny · · Score: 5, Funny

      And we shall harvest them, oh yes the time of the great fat farm is at hand.

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      ...
      /me sighs
    3. Re:Oh the irony... by denttford · · Score: 4, Funny

      Meh.

      I want my stem cells the right way, derived from the tortured souls of aborted cherubic foetuses. Enough to fill the dancefloor atop the head of a pin.

      The immortality of one can not be achieved but by the suffering of many.
      This is just dishonest.

      --

      Leben Sie jetzt die Fragen.
    4. Re:Oh the irony... by cgenman · · Score: 4, Funny

      I'm not vegging out on the couch. I'm building up my stem-cell reserves.

    5. Re:Oh the irony... by Joebert · · Score: 2, Insightful

      Shit I forgot to hit the AC button !

      --
      Wanna fight ? Bend over, stick your head up your ass, and fight for air.
  4. Re:frosty piss by Ethanol-fueled · · Score: 4, Funny

    Pabst Brewing co., is that you?

  5. Re:Better hope by acris · · Score: 5, Informative

    That McCain/Palin don't get elected if you want this kind of research to continue.

    no matter who gets elected in the USA, future research won't be effected by this. Unless said president decides to attack Australia. Please do more research next time before making off-hand comments about politics.

  6. Re:frosty piss by jeremiahbell · · Score: 4, Insightful

    Hey, I tried Pabst Blue Ribbon for the first time the other day, and it wasn't too bad. Everybody always talking about how bad it is, but they should just give it a try.

    Beer, and this includes your favorite beer, is something you grow to like. In reality beer is nasty shit and we all know it. We just learn to tolerate a certain flavor, and we like to stick to what we learned to tolerate. Many may deny it, but in reality all we really want is the alcohol, or one to have the taste to remind us of the alcohol.

    Yep, I just said that a beer didn't taste bad, and then went on to say that all beer tastes bad.

    --
    "Where have all the good people gone?" - Jack Johnson
  7. Tuesday is my Fat-Heart group... by retech · · Score: 5, Funny

    So the plan was to get the entire world to bulk up and then sell their fat back to them as a means to save them...

    the first rule of stem cell research is you don't talk about stem cell research.

    1. Re:Tuesday is my Fat-Heart group... by wdef · · Score: 2, Funny

      The first rule about fat club is you don't talk about fat club.

  8. Adult stem cells vs. foetal stem cells by Amenacier · · Score: 2, Informative

    The beauty of using adult stem cells is that they can be taken from and used on the same person without fear of rejection because they are already marked as "self" by the body...foetal stem cells may still cause problems because they have their own unique DNA.

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    Amenacier
  9. Not realistic by Anonymous Coward · · Score: 4, Informative

    There's a lot of questions that have to be answered here - it's not as simple as they say it is. Adipose-derived stem cells are definitely nothing new - adult stem cells are widely studied and commonly used in bioengineering labs. The problem is that translating this into a clinically useful tool is far from reality, and there are a lot of fundamental issues that have to be resolved before something useful can be made:

    1. You have to isolate the stem cells from fat properly, which is not a simple task especially when you think about doing this en masse for many patients.
    2. Then you have to transform the cells, which is costly and takes time and never works completely.
    3. After you get the cells beating, they have to beat in rhythm with the electrical pulse from the heart.
    4. Then you have to ensure that they stay that way and don't require any additional growth factors or other biomolecules to keep their differentiation.
    5. You also need to anticipate possible immune responses, i.e. a host could reject its own cells.
    6. Then you have to consider the cost of growing these cells ex vivo and you probably have to do this in advance, especially if you want to use autologous cells (the patient's own cells), since it will take a lot of time and patience to grow the cell number to something substantial that can be injected.

    In Australia things might happen faster, but for the US, getting this particular system running is full of regulatory issues and problems that aren't going to be easily addressed - 5 years is frankly impossible. I'd say 10 years, and that's AFTER they get all of the animal studies up and running. Ah, and it will cost tens of millions of dollars, if not hundreds of millions.

    1. Re:Not realistic by wdef · · Score: 2, Informative

      To respond to your issues: 1. Isolate a few, then culture the rest? 2. Tranformation appears here to be quite simple and spontaneous. The rat cells are doing the work. 3. Rhythm can be synchronized with an electric current. 4. Additional maintenance - speculation until we know more. 5. Wondering how a host rejects its own cells - unless an autoimmune disease has been triggered? They all have the same HLA complex, or am I out of date? 6. Time to culture cells - so what? Heart failure is a slow and costly way to die. Drugs have greatly extended life. There is time enough. Industrial processes and technology should be able to streamline the process. Regulatory and funding issues: you're forgetting how many fat arses sit on funding and ethics committees and are shit scared of dying from heart problems. In short, I think you are being prematurely negative. Wait until the data is in. Personally I'd be more concerned that, if it works, it'll be *suppressed*. After all, what are we going to do with all the old people that live to 120+ because death from heart failure has been eliminated?

  10. Re:The easy way by Your+Pal+Dave · · Score: 2, Insightful

    One big advantage of using fat (or other adult) stem cells over fetal cells is that the cells could be harvested from the target patient, thus avoiding tissue rejection problems.

  11. Re:i wish upon a day when by MrMr · · Score: 3, Insightful

    Just stop reading press releases and start reading books.
    The reason you see these preliminary results everywhere is that there is a constant need of more good news to attract investors and sponsors.

  12. Re:Better hope by Anonymous Coward · · Score: 5, Funny

    When "research" includes such things as "discovering that other nations exist," we are well and truly fucked.

  13. Re:Better hope by bonch · · Score: 3, Informative

    Well, I wouldn't know what Christians are saying. As far as I can tell, they're not saying anything about adult stem cells. They were opposed to embryonic stem cells because of how they were harvested, and it wasn't just Christians who were opposed.

    By the way, mocking Christianity on Slashdot for easy upmods is too easy.

  14. Department by mrbobjoe · · Score: 2, Insightful

    from the for-the-love-of-god-montressor dept.

    Eh? Was there a beating heart in The Cask of Amontillado? Maybe "the beating of his hideous heart" from The Tell-Tale Heart would have been more appropriate?

  15. OMG: Someone's been watching.. by maroberts · · Score: 2, Informative
    --

    Donte Alistair Anderson Roberts - hi son!
    Karma: Chameleon

  16. Re:Better hope by MPolo · · Score: 5, Informative

    Even more so, since this is not embryonic stem-cell research (to which McCain, Palin, and many other Christians object), but rather adult stem-cell research (to which only Jehovah's Witnesses and Christian Scientists object, as far as I know).

    Personally, I have yet to read of truly successful research with embryonic stem cells (because they are generally rejected by the recipient), whereas many large advances have been made with adult stem cells (since the donor and the recipient are the same person, rejection is eliminated) -- for men at least, pluripotent cells have been found in the testicles, so that any type of cell could be produced without having to use embryonic stem cells. I also recently saw a report about a person with congenital heart disease who was apparently cured by an injection of his own bone-marrow stem cells.

    So I suppose my question would be why the intellectual elites want to spend their research monies on embryonic stem-cell research that is more expensive, less successful, and morally questionable to a large sector of society, rather than on research in areas where successes keep coming, the cells are available without moral complications, and the costs are in general lower. A cynical person might think that it's all about getting drug patents and getting money out of the consumers and padding their own checkbooks...

  17. Re:The easy way by tloh · · Score: 2, Insightful

    What do you mean? Step back as the opposite of step up to the plate?

    here is a partial list of when they (have) work(ed) against progress
    Christianity vs. Galileo & Copernicus
    Fa Lung Gong vs. every frigging thing that is normal
    Christian Science vs. modern medicine
    Scientology vs. psychology
    Islam (the fundamentalist variety) vs. gender equality and global harmony

    But to be fair, religion *has* also stepped up to the plate on a few occasions. It is important to keep in mind that the concept of higher education and the modern collegiate system took shape within the catholic monasteries of the middle ages among the scribes whose efforts in propagating language and culture proved vital to later civil/social developments of the western world. And centuries before the crazy nut jobs took over Islam, it was Islamic scholars who preserved much of the writings of Plato, Aristotle and other treasures of Greek antiquity.

    We play politics with this sort of thing a lot these days. But the actual stories behind the talking points are many shades of gray.

    --
    Stay sentient. Don't drink bad milk.
  18. Nobel Prize material by wdef · · Score: 3, Insightful

    Clearly a humongous discovery. Should these cells be made to repair damaged heart muscle, it will revolutionize medicine. And without all the tedious hoo-hah about embryonic stem cells. Cardiac cells, like neurons, cannot be replaced by the body when damaged. This in fact is why many people die from heart failure years after surviving heart attacks. Heart attacks cut off the oxygen supply to cardiac cells, which die and can only be replaced by non-functional scar tissue, which is like the body's spakfiller. You lose enough cells, the heart cannot pump properly.

  19. Re:frosty piss by moosesocks · · Score: 2, Funny

    Yep, I just said that a beer didn't taste bad, and then went on to say that all beer tastes bad.

    Ah. I guess that means you're drunk :-P

    --
    -- If you try to fail and succeed, which have you done? - Uli's moose
  20. Re:Does McDonalds have a stake in this? by theaveng · · Score: 2, Insightful

    Yep. We Americans have been looking for a new invention to sell the world. Well, it's fat. We have the biggest supply of fat of any country. Start-up the liposuction machines, and start exporting those fat-to-heart organ replacements.

    --
    FOX NEWS.com should be BANNED from television and internet. Have the Congress take it over and give us Truespeak.
  21. reading sideway... by Monkey-some · · Score: 4, Funny

    I did saw "stem cells extracted from human farts..." had to re-read it a second time wondering where the science could ever stop

  22. Re:The easy way by Notquitecajun · · Score: 3, Insightful

    I'm not really offended, but it comes down for when life starts. Both Biblically and humanistically, I believe that we MUST value unborn life as a society, and not subject it to the whims of "the greater good," which rarely turns out as such. We consider human testing on anything other than volunteers as inhumane. If I consider the unborn as human, what other position am I supposed to take?

  23. Dual Operation by kiick · · Score: 2, Funny

    Liposuction + heart fix
    Come out thinner and heart-healthy, all in one swell foop (without all that tedious dieting and exercise).
    Someone is going to make a fortune.

  24. Re:Better hope by dbrutus · · Score: 2, Insightful

    Even Jehovah's Witnesses don't have an objection to banking and reusing their own personal blood. A lot of people are trying to make religious objections larger than they actually are in an effort to make religious people seem foolish or weird. Don't get taken in.

  25. Re:Better hope by dbrutus · · Score: 2, Insightful

    Actual christians (instead of the caricatures and straw men you see on slashdot and elsewhere) are rather happy about adult stem cell therapies and wholeheartedly support them.

  26. Re:The easy way by dbrutus · · Score: 2, Informative

    The religious problem of Galileo was that he was saying that the Church must change the way it taught Scripture so that it conformed to heliocentrism. The Church, reasonably in my view, said that Galileo had to either say it was a theory, prove it was a fact, or shut his pie hole. Within a few short years, Galileo's works were in free circulation in Catholic Christendom using the formulation that heliocentrism was a theory. The last actual scientific objection to heliocentrism was laid to rest in the mid 1800s when stellar parallax was finally observed, centuries after Galileo claimed it as fact, instead of theory and got into trouble over it.

    Galileo was an SOB and pissed off a great many early supporters. They *did* behave badly to him but that doesn't make Galileo right in his theology any more than Galileo's theory of comets was right. Eventually the Church admitted the personal revenge part of the affair, made a minor penance, and moved on.

  27. Re:Better hope by philspear · · Score: 2, Interesting

    So I suppose my question would be why the intellectual elites want to spend their research monies on embryonic stem-cell research that is more expensive, less successful, and morally questionable to a large sector of society, rather than on research in areas where successes keep coming, the cells are available without moral complications, and the costs are in general lower.

    Well, human embryonic stem (HES) cells have already proven invaluable in research. Notably it was by studying them that we found out how to make induced pluripotent stem cells (IPS), basically how to make any cell into personalized embryonic stem cells without the embryo or the tissue rejection. That's not something you can say about adult stem cells: they won't ever be able to make new spinal cord cells. IPS cells can, and if we hadn't been researching HES cells, we never would have figured out how to make IPS cells.

    And THAT'S why you don't ban different types of research: you don't always know where it's going.

  28. Re:The easy way by RulerOf · · Score: 2, Interesting

    You shouldn't attack the standpoint from an unrelated angle though. You might be missing the point, because I forgot to mention that the donors from whom any stem cells are created obviously don't care either.

    Again, strictly speaking, coma patients are in a coma, and not brain dead, demented folk could quite possibly have life-preserving instinct. I won't argue the unconscious because, frankly, that's just ignorant.

    I'm sorry, but genetics dictates that reproduction is a nearly boundless resource. Demented people and coma patients are not, nor is being demented or in a coma a part of living and reproducing.

    If you want to argue for the rights of the unborn, stick to the unborn, or at least the reproductive cycle. A chance to lead a life != a life lead.

    People with already established lives come first and always have.

    --
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