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Geneticists Claim Aging Breakthrough

Quirk writes "The Science section of The Guardian is reporting on recent experiments by geneticists 'to unlock the secrets of the aging process has created organisms that live six times their usual lifespan, raising hopes that it might be possible to slow ageing in humans.' 'In the experiment, Dr Longo's team took yeast cells and knocked out two key genes, named Sir2 and SCH9. The latter governs the cells' ability to convert nutrients into energy. They found that instead of dying after a week, the cells lived for up to six weeks.''Research has now begun to test whether the effect works in mice.' So it looks like we might soon have near immortal, fearless mice."

27 of 408 comments (clear)

  1. Hilander by Morky · · Score: 4, Funny

    I am Mickey McMouse of the clan McMouse, and I am immortal.

    1. Re:Hilander by hunterx11 · · Score: 5, Funny

      What's the sequence of the gene the prolongs life for you and me? CTGACTGCATC!

      --
      English is easier said than done.
    2. Re:Hilander by dgatwood · · Score: 5, Insightful
      I am Mickey McMouse of the clan McMouse, and I am immortal.

      The only thing that will last longer than I will is the copyright on my face.

      --

      Check out my sci-fi/humor trilogy at PatriotsBooks.

    3. Re:Hilander by corngrower · · Score: 5, Funny

      All those jokes about anti-aging discoveries never grow old, do they?

  2. We have that already by Chowser · · Score: 5, Informative

    We have cells already that are not governed by the normal life/death cell cycle. It's called CANCER. Cancer cells have autononmous growth and multiply indefinitely.

    --
    sig here
    1. Re:We have that already by iamplupp · · Score: 4, Informative

      You are over simplifying. For a normal cell to become a tumor cell all of the following mutations are required:

      * telomerase activity
      * insensitivity to apoptosis by either disrupting the proapoptotic signal pathway (Bax, P53, effector-caspase etc) increase the expression of antiapoptotic signals such as Bcl-2
      * growth factor independence (ie constitutively active Ras)
      * insentivitity to growth inhibitors
      * proangiogenetic mutations

    2. Re:We have that already by Chowser · · Score: 5, Insightful

      Yes I know, it was a purposeful oversimplification. My point was also showing that jumping from yeast cells to mice is overly optimistic at best, and that transferring such a mutation from a single cell organism to a mammal may lead to unforseen consequences.

      --
      sig here
    3. Re:We have that already by Anonymous Coward · · Score: 5, Informative

      Actually, jumping from yeast to mice is a fairly common thing to do in genetic research. I'm oversimplifying here as well, but the way genetic research often works is to start with a eukaryote model (yeast), then move to an animal model (like drosophila, or fruit flies), then a mammal model (mouse), before moving on to more complex mammals (with the ultimate goal being humans). Along the way, you might also pass through other species (one of my colleagues downstairs is all about sea urchins). Since each of these experiments can take a long time (though simpler organisms tend to be faster, which is why they're used), I suppose it would make sense to go straight from yeast to mice if you already know that these same genes are present.

      It's astonishing how much genetic material is shared going all the way back to yeast, and how much genetic research is transferable. Yeast is a eukaryote (so, while single-celled, they have a nuclei, unlike bacteria), and though it usually reproduces asexually, it can be made to undergo meiosis and bind half its genetic material with that of a "mate".

      Note: I am not a genetic researcher, but I work in the same research facility as some, and am encouraged to understand more or less what they do.

    4. Re:We have that already by caerus · · Score: 3, Insightful

      Well the foreseen consequences of not doing anything about aging are well known... getting frail, sick and dying.

      The Sirtuin genes are well established as a regulator of genes expressed near the ends of telomeres and there are many researchers studying its effects in mammals in fact there are pharmaceutical companies (Sirtris for instance) betting the pharm that, resveratrol, a component of red wine and activator of mammalian sir2 pathway, can be tweaked into a more powerful drug and help everyone live healthier longer.

      Whichever way you look at it... aging is going to be "oh so yesterday..." within the next few years. Baby boomers will soon get the message that we know enough to start really looking at the dysfunction that increases as we get older as "treatable" by attacking it at the root cellular processes which give rise to it. Now if only those people in the "pro-aging trance" could wake-up we'd there would really be an all out War on Aging and many of our parents and loved ones would be around longer not to mention the 250 billion dollars that would be saved not having to buy diapers for them. Seems the best solution to the rising costs of Medicare from an increasingly frail population that everyone is whining about is to maker sure they don't get frail in the first place.

      In fact..

      There's a research prize of THREE MILLION DOLLARS being offered to the scientist that beat the world record for the lifespan of a mouse using any technologies available.

      Mprize

  3. i know when we will see these benefits by circletimessquare · · Score: 5, Funny

    i know exactly when these amazing age-related breakthroughs will come to fruition for humanity

    exactly at the age at which i am too old to partake of any of it

    --
    intellectual property law is philosophically incoherent. it is your moral duty to ignore it or sabotage it
  4. It's gonna get.. by earthloop · · Score: 3, Interesting

    ..real crowded in the world if we're all immortal.

    1. Re:It's gonna get.. by wiggles · · Score: 4, Funny

      No problem. Just make sterilization a prerequisite for immortality.

    2. Re:It's gonna get.. by 19thNervousBreakdown · · Score: 4, Funny

      Not if I have anything to say about it.

      There can be only one.

      --
      <xml><I><am><so><damn>Web 2.0</damn></so></am></I></xml>
  5. Oh, great more old people by BobCat7 · · Score: 5, Funny

    At this rate I'm never gonna get to sit at the big table on Thanksgiving

  6. Yawn by ENOENT · · Score: 5, Funny

    Where we can get fearless, immortal, FLYING mice, then I'll be excited.

    Especially if they can also sing "Here I come to save the day."

    --
    That's "Mr. Soulless Automaton" to you, Bub.
  7. Re:I don't see the point of extending life. by RootsLINUX · · Score: 3, Funny

    So in other words, I should invest my money in retirement homes?

    --
    Hero of Allacrost, a FOSS RPG for *NIX/*BSD/OS X/Win
  8. Hitch Hiker's Guide was right!?!?!? by RingDev · · Score: 3, Funny

    Fearless imortal mice?!? Maybe my "wanna see my spaceship" pick up line will start working again!

    -Rick

    --
    "Most people in the U.S. wouldn't know they live in a tyrannical state if it walked up and grabbed their junk." - MyFirs
  9. Re:Fearless cancels out Immortal by dmuth · · Score: 4, Funny

    At the rate of mice-related stories we've been getting on Slashdot lately, I'm getting worried that the next one is going to be how scientists found a way to make mice smarter.

    "What are we going to do tonight, Brain?"
    "Same thing we do every night, Pinky: try to take over the world!"

  10. Re:Wow.... by mcfuddlerucker · · Score: 3, Funny

    >> Our tax rates will be 80% of our income.

    So... stopping this aging gene also turns us into Swedes?

  11. Do not go gently into that goodnight.... by truckaxle · · Score: 4, Interesting

    Longevity will provide the next inflection point of human capacity and progress. Imagine if the great people of science could continue to contribute and innovate for the equivalent of several lifetimes. Gauss was the last mathematician who was said to be able to be conversant with the entire spectrum of mathematics. Currently it takes a human a decade to two just to be abreast of a specific field of science to be able to make any significant contributions. The period of time available to advance our understanding is getting shorter and shorter due to increase in the body of knowledge and our limited life times.

    I know there will be the crowd that says - but we were designed to die. That is bunk! Self aware intelligence is bound and destined to perpetuated and proliferate.

    1. Re:Do not go gently into that goodnight.... by TrevorB · · Score: 4, Insightful

      There's one argument against longevity I've not been able to properly argue against, it's effects on social evolution.

      A lot of social change can take place because old people (and more specifically, old people ideas) die. I'm sure many of us feel that our ideas are enlightened and superior to those of our ancestors, but when we're all pushing 70, we really shouldn't be the ones deciding the direction which society goes. In the year 2050, we're all going to be bitter crotchety old people, set in our ideas talking about these young kids and their crazy ideas. I'm concerned what living in that kind of world will be like. It might have a stagnation effect on a culture, with other "non-longevity" cultures overtaking our own.

      I'm still 100% for longevity, but it's not going to be great grandmas and grandpas riding roller blades down the sidewalk as healthy as they were when they were 40. There's going to be definate social change the kind the human race has never seen.

      Be sure of one more thing. Someone's going to make a FORTUNE if effective anti-aging drugs can be mass produced. Like, hundreds of billions of dollars, hand over fist.

  12. And soon our scientists will say... by teko_teko · · Score: 5, Funny

    And soon our scientists will say stuffs like... Wernstrom: "Face it, Farnsworth, you're over the hill. It's time to leave science to the hundred-twenty-year-olds." Farnsworth: "You young turks think you know everything! I was inventing things when you were barely turning senile." Wernstrom: "Haha! Go home before you embarrass yourself, old man! Now if you'll excuse me, I'm going to take a nap before the ceremonies."

  13. This is not something that was previously unknown. by Biotech9 · · Score: 4, Interesting

    Here's a simple way to increase your lifespan. Eat less. In fact, halve the amount of food you eat.

    There are papers that you can search for with sciencedirect.com or scholar.google.com that show rats that are given half the calories of the control group living almost 50% longer. It's just not exactly something that you can sell to people. You can live longer, if you live LESS. There's a reason animals that live very long lives have very slow metabolisms (such as Turtles) and animals that have very high metabolisms live less (such as humming birds and mice). To put it simply, you can 'burn the midnight oil' and live a short life, or eat less and do less and live longer.

    Putting it more complicatedly, the reason you age is generally regarded to be because of damage your body and cells accumulate over a lifetime of living. The damage often comes from 'Oxidative stress'. This is just a very broad umbrella term for anything that causes the generation of 'Reactive oxygen species' that are highly reactive molecules that zip about your cell damaging proteins and DNA. ROS are made by things such as too much Vitamin K, smoking, UV light or certain other radiation bands, too much iron in the diet, and so on.

    And the biggest contributor to ROS in your body over it's life? The Mitochondria. The 'power plant' of each cell. It makes ROS as a part of the process used to make ATP (the 'batteries' of your cells) and inevitably some escapes and causes damage. Over a life-time the damage builds up.

    The biggest contributor to ageing is just plain old living (kind of obvious really), and the best way to therefore cut down on that damage is to eat less, slowing down the metabolism and decreasing the amount of ROS the mitochondria produces.

    IMHO, not really worth it! you could get hit by a bus tomorrow! Dig into your fresh Chiabatta and Fetta cheese!

  14. I for one welcome our new Disney overlords! by ave19 · · Score: 3, Funny

    This is all a ploy by Disney to justify keeping Micky under copy-wraps for 600 years.

    --
    ...or maybe not.
  15. Re:This is not something that was previously unkno by badfish99 · · Score: 3, Funny

    Is that why all those starving people in Africa all live to be 180 years old?

  16. That's not a joke. by Ungrounded+Lightning · · Score: 5, Insightful

    i know exactly when these amazing age-related breakthroughs will come to fruition for humanity

    exactly at the age at which i am too old to partake of any of it


    That's not really a joke.

    People in government see anti-aging research and treatments in terms of the financial load on the retirement and medical infrastructure relative to the tax base of still-working young, and view improved treatments as extending the life of the infirm aged rather than extending productive, vigorous youth. As a result they tend to be opposed to such research, or in favor of rationing its fruits if it ever has any.

    (I recall back in the early days of CNN, when the head of one of the government agencies was being live-interviewed on future solvency issues as the boomers retired, and he slipped and said "We have to get the death rate up to meet the birthrate." Guess what part got clipped from the replay a few hours later...)

    Life-extension advocates, of course, point out that real breakthroughs will extend healthy, vigorous life rather than simply stretching senility - and might eventually eliminate the latter entirely. Thus an effective attack on aging would reduce, rather than increase, the load on the systems (once they were adjusted for the increased lifespan).

    You'll notice that a significant fraction of The Fine Article is dedicated to heading off such short-sightedness on the part of the portion of the ruling class that will be dispensing grant money and regulating availability of any treatments.

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
  17. Immortality would last about 800 years. by orichter · · Score: 4, Interesting

    I asked a friend of mine in the insurance industry once how long people would live if we eliminated all natural causes. He said given current accident rates, people would live on average about 800 years. I do wonder if a lifespan was 800 years on average, we might be more careful, but I doubt it. If you think about it, this number means that roughly 1 in 10 people die in accidents over the course of a lifetime. That sounds about right to me. As for people dying of diseases, I believe that most of the diseases associated with end of life are heavily related to aging itself, so many of the diseases you mention may be lessened or eliminated through extending lifespan.