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Medicine

Why It's a Big Deal If the First COVID-19 Vaccine Is 'Genetic' (wired.com) 245

An anonymous reader shares an excerpt from Wired: On Monday morning, when representatives from the drug company Pfizer said that its Covid-19 vaccine appears to be more than 90 percent effective, stocks soared, White House officials rushed to (falsely) claim credit, and sighs of relief went up all around the internet. [...] The arrival of an effective vaccine to fight SARS-CoV-2 less than a year after the novel coronavirus emerged would smash every record ever set by vaccine makers. "Historic isn't even the right word," says Larry Corey of the Vaccine and Infectious Disease Division at the Fred Hutchinson Cancer Center. A renowned virologist, Corey has spent the last three decades leading the search for a vaccine against the virus that causes AIDS. He's never seen an inoculation developed for a new bug in under five years, let alone one. "It's never happened before, never, not even close," he says. "It's just an amazing accomplishment of science."

And perhaps even more monumental is the kind of vaccine that Pfizer and BioNTech are bringing across the finish line. The active ingredient inside their shot is mRNA -- mobile strings of genetic code that contain the blueprints for proteins. Cells use mRNA to get those specs out of hard DNA storage and into their protein-making factories. The mRNA inside Pfizer and BioNTech's vaccine directs any cells it reaches to run a coronavirus spike-building program. The viral proteins these cells produce can't infect any other cells, but they are foreign enough to trip the body's defense systems. They also look enough like the real virus to train the immune system to recognize SARS-CoV-2, should its owner encounter the infectious virus in the future. Up until now, this technology has never been approved for use in people. A successful mRNA vaccine won't just be a triumph over the new coronavirus, it'll be a huge leap forward for the science of vaccine making.

[I]n the last decade, the field has started to move away from this see-what-sticks approach toward something pharma folks call "rational drug design." It involves understanding the structure and function of the target -- like say, the spiky protein SARS-CoV-2 uses to get into human cells -- and building molecules that can either bind to that target directly, or produce other molecules that can. Genetic vaccines represent an important step in this scientific evolution. Engineers can now design strands of mRNA on computers, guided by algorithms that predict which combination of genetic letters will yield a viral protein with just the right shape to prod the human body into producing protective antibodies. In the last few years, it's gotten much easier and cheaper to make mRNA and DNA at scale, which means that as soon as scientists have access to a new pathogen's genome, they can start whipping up hundreds or thousands of mRNA snippets to test -- each one a potential vaccine. The Chinese government released the genetic sequence of SARS-CoV-2 in mid-January. By the end of February, BioNTech had identified 20 vaccine candidates, of which four were then selected for human trials in Germany. [...] Genetic vaccines might be proving they can work -- but it's still not definitive, and they may not yet work for everyone. That's why experts say it's so crucial to continue supporting ongoing trials for the more than 60 other vaccine candidates still in various stages of human testing. What older technologies lack in terms of speed, they make up for in durability.

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Why It's a Big Deal If the First COVID-19 Vaccine Is 'Genetic'

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  • He's never seen an inoculation developed for a new bug in under five years, let alone one.

    The H1N1 timeline:
    April 15 - first human infection
    July 22 -- clinical testing beings
    Sep 15 - FDA approves 4 vaccines
    October 5 - vaccination begins

    https://www.cdc.gov/flu/pandem... [cdc.gov]

    So what am I missing here? What was different about H1N1 that it doesn't count in this context?

    • Re: (Score:2, Insightful)

      by Anonymous Coward

      its the flu, and with flu virus most of the problems are already solved and its just a matter of testing, rather than developing an entirely new solution and testing it

      • by deviated_prevert ( 1146403 ) on Wednesday November 11, 2020 @02:23AM (#60710488) Journal

        its the flu, and with flu virus most of the problems are already solved and its just a matter of testing, rather than developing an entirely new solution and testing it

        No mod points for the cowherds on /. any more? Because that was a stellar little tweet of a post. I wish I had that level of diplomatic skills.

        Ain't got points because I have been pointing out the fact that covid-19 is not a conspiracy or a non trivial disease as the man in orange would have his cohorts of brain washed myrmidons and sycophants believe. If herd immunity is not achieved within 2 years it will be as bad as the 1918 "spanish flu" Extrapolate that to the new population of the planet and the numbers of dead will be in the hundreds of millions within 3 years. Certainly it will kill a much smaller proportion of the younger population than that of the over 50 crowds but in turn we will lose a great many people who still could have contributed to society in meaningful ways .

        If we go on to you lose a significant portion of the older medical workers whose wisdom and compassion compelled them to help the dying our society will certainly be poorer for it. All these things are possible with this pandemic and there is even the distinct possibility of social chaos and collapse. Unfortunately until January 2021 a pathological liar with the social skills of Adolf Hitler has a foot ball to fall back on, let us just hope that he does not have the power to put the squeeze on his associates to nuke the electoral college!

    • Re:Smashing records? (Score:5, Informative)

      by Drishmung ( 458368 ) on Wednesday November 11, 2020 @12:12AM (#60710254)
      H1N1 is a variant of the 'flu virus. We know how to create variants of existing vaccines to combat new 'flu variants. The novel corona virus (SARS-COV-2) is a different beast. It's quite different to most of its nearest cousins, and we don't have existing vaccines that we can modify. The treatments that worked best against the nearest cousins, didn't work against COVID-19, and the modifications attempted didn't work either.

      This is a radically new approach, and even making the drug involves lots of new processes. Hence the amazement at how fast we appear to have done it.

      Disclaimer, in case it isn't obvious, I am not a drug researcher, just an interested observer (after all, my life may depend on it).

      • As a fellow "interested observer", I am likewise amazed by the progress that has been made thus far. My pessimism for a nasty winter across the world remains (hoping they can prove something to be safe enough for limited distribution to the most vulnerable before the end of the year, and hopefully head off anything too bad before winter in the south), but my (never previously expressed here, actually) pessimism about this status quo continuing through next winter has diminished considerably.
    • Existing techniques in developing vaccines for influenza viruses (which were already widely used in humans) were applicable. Specifically, they were "simple" attentuated/inactivated virus vaccines.

      Not aware of any human coronavirus vaccines that made it to market (correct me if I'm wrong); some work was done during the 2003+ SARS outbreak, and some number of animal vaccines exist for other coronaviruses, which I'm sure have some relevance to development... but this all pales in comparison to the body of w
    • Perhaps because H1N1 is a flu virus, and the process for making new flu vaccines is well established? Making vaccines for "novel" viruses might require a new process, and therefore it can take make much longer. That's my guess.
    • Either way, I'm sure they tossed a lot of money into this. (I prefer research over war) My friend said that if you could write a grant for covid research that made sense, it would get approved.
    • by ceoyoyo ( 59147 )

      H1N1 wasn't a new virus. It's influenza, with a few specific proteins shuffled a bit, the way every other human-infecting flu virus is.

      HIV was a completely new virus, and in fact a member of an entire genus that we didn't really have much experience with.

      The COVID-19 virus is kind of in the middle. It's more dissimilar from the original SARS and MERS viruses than different flu strains are, but it's not nearly as novel as HIV was.

      It is a bit disingenuous to say the vaccine was developed in under a year. Some

    • Flu vaccine is rerunning the same pre-approved process with slightly new input virus strain. It's not comparable to making an entirely new vaccine for an entirely different virus.
      • It's not comparable to making an entirely new vaccine for an entirely different virus.

        Yup exactly.
        (Though, like other have pointed out, the SARS-CoV-2 vaccine isn't entirely new and slightly benefit from past experience learn from SARS and MERS.
        BUT....)

        As TFA points out, the process of using mRNA that several labs are relying upon (Pfizer, Moderna, etc.) is a brand new process which will be used for production vaccine right now for the first time ever in the history of modern biotechnology.

        So yeah, you're right that's definitely not the "use the same approach as we do each year, and this yea

        • by Rei ( 128717 ) on Wednesday November 11, 2020 @09:43AM (#60711190) Homepage

          I don't think people will freak out because I don't think that the average person has any clue what RNA is.

          Regardless, re this:

          The viral proteins these cells produce can't infect any other cells, but they are foreign enough to trip the body's defense systems. They also look enough like the real virus to train the immune system to recognize SARS-CoV-2, should its owner encounter the infectious virus in the future

          This is actually one of the cool things about our immune system. CD8+ (killer) T-cells are "trained" in the thymus as to what a normal cell is supposed to look like. Cells naturally degrade proteins inside them into 8-amino-acid segments, transport them to the surface, and bind them to a surface receptor. Basically waving them around and going, "Hey, look at this!". CD8+ cells have different binding affinities for different surface proteins. In the thymus, those which bind weakly (but not strongly) to these are selected for - e.g. "I care enough to investigate you, but not to kill you." When an invader attacks the body, fragments of their proteins will get taken to the surface and "waved around" for investigation. A minority of T cells will have a strong binding affinity for these foreign proteins and trigger an immune response to them. Reproduction of these T-cells then becomes favoured, including mutant variants which may or may not bind more strongly to the target antigen.

          (There's also CD4+ (helper) T-cells which help mediate the immune response; B-cells, which make antibodies; dendritic cells, which go around the body nibbling on everything these see (even your own cells), to collect up protein samples and wave them around to try to trigger responses from other cells; and my favorite, natural killer cells, which go around and attack everything they find that's not waving around enough protein fragments, in case some attacker decided to try to disable that mechanism ;) )

          Basically... if you get some foreign mRNA in your cells, it'll create its target protein, it'll get degraded, the fragments will get transported to the surface, cells will recognise, "Hey, this isn't from a normal cell I was "trained" to!", and the immune cascade will get set in motion against it.

  • This introduces a mRNA sequence into the body to start producing the spikes from the sars-cov-2 virus. Just the spikes so I know it doesn't create a case of Covid-19 but what eventually stops the production of the spikes. I mean I doubt we'd want to be continually flooded with the spike proteins. Maybe it's a one shot event that destroys the mRNA as it's being read?
    • Well why not? They aren't producing much of it anyway. All kinds of crap proteins are produced in huge quantities in the body I wouldn't worry about a few spike proteins being made continuously. Sadly though, even the self amplifying mRNA (which makes a protein that keeps making copies of the mRNA) doesn't last forever -- it degrades eventually (months or even years in the case of saRNA). If RNA didn't degrade, our cells would explode or something given how much of it is being produced. Ironic we are even t

      • Why not? Because it is never a smart idea to change a running system in novel ways. Otherwise you could justify literally almost any change with that, until statistical likeliness of it being very bad becoming 100%.

        So we *do* need a reason, before introducing perpetual changes to our protein expression. (And you to stay level-headed though this. :)
        Of course only if we assume it has a bad effect in the first place. (Anyone with an *actual* clue, not just triggered arrogance, who can tell us?)
        And with the imm

    • I'm no expert (so I will defer to anyone that is), but my guess is that since most cells in the body die off quickly (days to weeks), that means once the injected mRNA has all been consumed, you wait for the consuming cells to die off and the replication halts.

    • No idea. Would be good if someone familiar with the biomachinery and viruses in general could comment. Unfortunately, I fear that anyone with an ounce of intellect and modicum of expertise has decamped because of the usual trolls. My guess is that there are lots of bugs that use mRNA to help create their pieces parts, so at some point that becomes attenuated or just a non-issue in terms of immune response.
    • The body is good at breaking down these proteins with proteolysis [wikipedia.org]. Some catalysts like ClpA actively disassemble obsolete proteins. The process is complex.

      Since this particular sequence is not self-replicating (as a virus is), it will eventually be broken down by the body.
    • While I'm not an expert in this field, messenger RNA, like all RNAs, is degraded by RNAses, and there's specific complexes of proteins (such as the exosome complex) that target messenger RNA specifically for destruction. If you don't have anything producing more mRNA in the cell, then, eventually the injected mRNA will be degraded and no more translation of it will occur. Because this vaccine isn't rewriting the cell's DNA (unlike the virus itself), there's nothing to produce further mRNA encoding the spike

  • mRNA (Score:3, Insightful)

    by haunebu ( 16326 ) on Wednesday November 11, 2020 @12:10AM (#60710244) Homepage

    Let's introduce manufactured genetic code into our own bodies. What could possibly go wrong?

    • Re:mRNA (Score:4, Insightful)

      by RightSaidFred99 ( 874576 ) on Wednesday November 11, 2020 @01:35AM (#60710416)
      What could? No, I'm actually asking since you are pretending to know so can you outline specifically what could go wrong, I mean I'm sure you're not just fearmongering right?
      • So, he does not pretend to know. He specifically hints at what we do *not* know. In a slightly humorous way.
        The point is for you to tell him, if you can. Instead of being a triggered dick about it, like you have been here. Which also more likely hints at you not knowing either, so why are you typing?

      • Re:mRNA (Score:5, Interesting)

        by AleRunner ( 4556245 ) on Wednesday November 11, 2020 @05:19AM (#60710734)

        What could? No, I'm actually asking since you are pretending to know so can you outline specifically what could go wrong, I mean I'm sure you're not just fearmongering right?

        The RNA ends up inserted into another virus where it combines with RNA from that virus to build a new spike protein similar to but different in shape from the protein in SARS-COV-2. This new virus is now able to replicate like SARS-COV-2 but at the same time, due to the other material in the spike it is able to mutate rapidly to avoid the immune system. Using the SARS-COV-2 spike the newly created virus becomes airborne whilst retaining the existing virus's ability to survive for days on surfaces. It's extremely unlikely, sure, but you asked what could go wrong.

    • It's a protein, it's not a retrovirus. It's not going to get copied into your DNA. It doesn't even come with mechanisms to copy things into your DNA (like HIV comes with).
      • It has the same effect though, as it still effectively produces the proteins that it would if it was introduced into the DNA.
        The difference probably being that it doesn't stay forever, as those cells are killed.
        Which contains two fallacies, unfortunately:
        1. You cannot kill all cells, as that would mean death. And most likely, not all cells altered that way either. And not instantly anyway. So if those "spikes" have any effect on the body, other than killing that cell, they will have an effect.
        2. If the immu

        • mRNA is unstable, it will vanish quickly with or without help. You would be in serious trouble if it didn't, with cells locked into processing messages long after it's needed. Unstable enough to need storage at _80F.

      • It's a protein, it's not a retrovirus. It's not going to get copied into your DNA. It doesn't even come with mechanisms to copy things into your DNA (like HIV comes with).

        What is being inserted into the body is not a protein. It's an RNA sequence which codes for a protein. That makes it a bit more interesting and there have been legitimate concerns [independent.co.uk] about after effects like inflammation [nature.com]. It's not an RNA virus but it's not just a protein.

    • by k2r ( 255754 )

      Let's introduce manufactured genetic code into our own bodies. What could possibly go wrong?

      You‘re writing a post on Slashdot. What could possibly go wrong?

    • by fazig ( 2909523 )
      Let's climb down from the trees and live in caves where all the dangerous predators are. Maybe at some point we'll walk upright. What could possibly go wrong?

      I have to accept the possibility that you're just joking because this phrase is commonly used as a joke. But there are plenty of dumb people out there who think that this is making a very good argument against doing something new.

      Science, at least when done properly, has obligatory precautions for such cases where extensive trials need to be conduc
  • since it's also a coronavirus. I imagine it will be released any day now.

    • The common cold is not a virus, but rather a set of symptoms caused by many different viruses (which includes coronaviruses). So it may be possible to adapt this to handle coronavirus cold variants, but that leaves everything else. A quick check of wikipedia says

      The common cold is a viral infection of the upper respiratory tract. The most commonly implicated virus is a rhinovirus (30–80%), a type of picornavirus with 99 known serotypes.[29][30] Other commonly implicated viruses include human coronaviruses ( 15%),[31][32] influenza viruses (10–15%),[33] adenoviruses (5%),[33] human respiratory syncytial virus (orthopneumovirus), enteroviruses other than rhinoviruses, human parainfluenza viruses, and human metapneumovirus.[34] Frequently more than one virus is present.[35] In total, more than 200 viral types are associated with colds.[3]

      So perhaps we could eliminate 15% of colds, but given how insignificant colds generally are, I doubt we'd bother giving it priority.

      • So perhaps we could eliminate 15% of colds, but given how insignificant colds generally are, I doubt we'd bother giving it priority.

        There is active research on the topic, but as you mention, it doesn't get as much funding as cancer.

      • So perhaps we could eliminate 15% of colds, but given how insignificant colds generally are, I doubt we'd bother giving it priority.

        And this is how you become a successful virus, dear Corona!

  • This vaccine is not ideal. It requires 2 doses and liquid nitrogen storage both of which create logistic headaches. Thankfully, there are over 300 vaccines in development. By the time a few million doses are actually available for this one, others will likely be within a month of achieving the same.

    As to this being attributable to Trump, it is a worldwide effort. They were developing this one and many others months before Trump gave any money.

    What we really need to be working on is figuring out how we are g

    • Doesn't require LN2. LN2 is 77K, which is like what, -196C?. These require -80C freezers, or dry ice for short term transport. 6-12 weeks is not possibly long enough to generate vaccine candidates, and run through phase I, let alone phase II and phase III. Your idea of a dedicated department/agency is a good one, just want to set the facts straight.
  • Sounds as the wet dream of any Pharma CEO.
    Who cares about side effects?

    • Sounds as the wet dream of any Pharma CEO.

      Indeed, a global market with governments willing to pay up front for millions of doses does sound like a goldmine.

      Who cares about side effects?

      I guess it depends on the side effect, no? And on the risks the disease poses. I recall reading about a treatment for tuberculosis that can cause colorblindness. Untreated tuberculosis kills half of those infected, or at least that's what Wikipedia tells me. Even if the treatment has a near certainty of permanent colorblindness then who would not take that?

      For people under the age of 65 year

  • by dexotaku ( 1136235 ) on Wednesday November 11, 2020 @02:13AM (#60710474)
    I knew there was a Resident Evil reboot coming, good to see what direction they're going with.
  • Sounds great, but I'm very wary of anything completely one-sided. And this lists exclusively positive properties.

    Which is also no good because it gives certain people, you know who, an argumentative advantage. It's better to be upfront about the negative properties too, to prevent that.

    So... what are the downsides?

    Without that information, guesses are that cells don't usually just accept random mRNA floating in intracellular space. And that it doesn't just do that one genetic alteration, but out of necessit

  • While I don't know about vaccine development, I do know a little bit about drug discovery, and there is plenty of "dumb", brute-force work going on to finding drugs to treat all sorts of things, including COVID-19.

    Thanks to robotics, you don't have to run experiments manually in a single test tube any more. If, say, you want to find a drug that interferes with the action of a a particular protein, you can do that experiment hundreds of thousands of times with libraries of hundreds of thousands of differen

  • by ufgrat ( 6245202 ) on Wednesday November 11, 2020 @05:07AM (#60710710)

    Most people hearing about this particular vaccine and it's requirements are having conniptions. I'd wondered what was so unusual about it, now I know.

    Apparently, this vaccine has to be stored at -75C (that's -103 for Fahrenheit fans). Damned few, if any, medical facilities have the ability to store any kind of quantity at that kind of temperature... and then, apparently, it's a double-dose vaccine (not unusual), so you take one dose, and then another some number of weeks later, which doubles the storage requirements.

    Add to that the fact that we haven't tried this kind of vaccine before, so we don't know what, if any, long term effects there are going to be... and I'm a little bit concerned by this one. I think I might wait for a slightly more old-fashioned approach. :)

  • by k2r ( 255754 ) on Wednesday November 11, 2020 @05:12AM (#60710720)

    The vaccine was developed by “German Company” BioNtech founded by a Turkish migrant and his wife, the child of Turkish migrants. Their Names are Özlem Türeci and Uur ahin.
    The development was supported by German tax payer with $455 Mio.

    Pfizer was contracted to make, test and deliver the vaccine at scale.

    I understand that for some US people paying money and promising to pay money is the same, whether for political rallies or for medical products, as is invention and talking about inventions.

    - https://en.m.wikipedia.org/wik... [wikipedia.org]
    - https://en.m.wikipedia.org/wik... [wikipedia.org]Özlem_Türeci

    (Yes, the likely religious affiliation of those brilliant people is irrelevant to a grade :-)

  • What kind of first is it when there are multiple other vaccines and hundreds of thousands of people have been immunized already?
    • Because it's actually showing results from phase 3 testing. The other vaccines haven't gotten that far: the Russian vaccine was released after phase 2 testing turned out ok.
  • But rice with a petunia gene in it that will save million of lives every year? Forget it, it's yellow! Golden Rice
  • For Chinese medical fridge manufacturers, since the vaccine has to be kept at -80 degrees Celsius at ALL time.

  • by Otis B. Dilroy III ( 2110816 ) on Wednesday November 11, 2020 @08:40AM (#60711070)
    We are allowing a pharma to introduce a substance which tinkers with our cellular processes at a very low level; with fast tracked testing; using a technique which has never been used with humans before.

    Given big pharma's history of greed and deceit, is this really wise?

    I think that the risk of unforeseen consequences is tremendous.
  • by sabbede ( 2678435 ) on Wednesday November 11, 2020 @09:38AM (#60711176)
    This is false: "The Chinese government released the genetic sequence of SARS-CoV-2 in mid-January"

    A Chinese scientist gave his team's findings to an Australian professor, who posted them - https://virological.org/t/nove... [virological.org]

    The Chinese government didn't release those findings, they had to be passed off to someone outside of China who released them on the researchers' behalf. The Chinese government was not thrilled. They shut down the lab two days after the sequence was released.

    So, why change the facts to make the Chinese government look like it wasn't suppressing vital information? They went after the guy who released the code just like they went after the doctor who first identified the outbreak, but from the excerpt you'd think they were playing nice and helping everyone else out.

  • by swillden ( 191260 ) <shawn-ds@willden.org> on Wednesday November 11, 2020 @01:18PM (#60711868) Journal

    The mRNA vaccine technology could be absolutely huge. Not only has it decreased development time to under a year in this case, but it has the promise to enable us to churn out new vaccines with amazing rapidity and even potentially to shortcut the testing process. It's not inconceivable that we could gain the ability to distribute a vaccine for a new pathogen mere weeks after isolating and sequencing it.

    The thing about this approach is that it gives us the ability to create a single retargetable vaccine. The base platform can be exhaustively tested to a degree that almost no vaccines have, because it's a reusable transport. They payload is just a bit of mRNA that builds a specific protein to stimulate the immune response, which means that we only need to test that mRNA and the resulting protein for safety and efficacy. The simplicity also means that as we further develop our models we may get to a point where the vast majority of that safety and efficacy testing can be done in simulation.

    Furthermore, one problem with vaccines today is that every different vaccine has different production processes and different distribution requirements. This could eliminate all of that variability. Standardized vaccine factories could churn out any new vaccine given nothing more than an mRNA sequence file and distribution and delivery could be standardized as well. Or perhaps we can even build desktop vaccine "printers", which every doctor's office and pharmacy could own, able to produce vaccines on-demand, from platform stock and a library of mRNA samples, or even descriptions.

    Finally, if there are some downsides to the base platform -- bad responses in some people, annoyingly-low temperatures required for transport, requiring injection rather than a more convenient delivery mechanism (e.g. oral)... we can work on gradually optimizing the base platform to have the cost, production, transport, delivery and bio-effect characteristics that we want. There will be challenges and limitations, of course, but because the platform's only job is delivery of a bit of mRNA, we can engineer the rest.

    If it works out, this could truly revolutionize vaccination, enabling humanity to respond to new pathogens with incredible rapidity, and at very low cost.

  • by aRTeeNLCH ( 6256058 ) on Wednesday November 11, 2020 @02:17PM (#60712156)
    With the knowledge that this vaccin is messing about with genetics, could it be that we'll only truly know about bad side effects after 9 months? Or worse, after 9 months plus several years...?

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