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Researchers identify 'switch' to activate cancer cell death
- deleted 3y ago[deleted]
- paulpauper 3y agoIt seems like every week there is a new story about some strategy or breakthrough that holds promise to treat or cure cancer, yet we're still stuck with the same treatments, mainly chemo, surgery, and radiation, and generally low survival rates for advanced cancers. Immunotherapy has been hyped for decades yet far from being a cure. Maybe one day it will happen.
- SoftTalker 3y agoLook at the incentives. To get funding for research, it's easier if you have prior research that supports your proposal. Hence a lot of stuff gets written up in very optimistic terms, to help get more funding to continue the research. It doesn't seem to matter that none of it really works in the end. It's also the reason people don't publish failed projects, even though from a science perspective those might be helpful to identify dead ends.
- AussieWog93 3y agoAnecdata, but I personally know three people who've been given an extra 5+ years each due to recent developments in cancer treatments (better chemo, to be fair), and I'm not exactly a social butterfly. Not a miracle, but not nothing.
- snakeyjake 3y ago>yet we're still stuck with the same treatments, mainly chemo, surgery, and radiation, and generally low survival rates for advanced cancers Survival rates have been increasing for almost all forms of cancers so fast that it is astounding. Amazing. Stupendous. Heartening. We've gone from an overall 50% five year survival rate to over 70% in just a couple of decades. The pancreatic cancer five-year survival rate is very low, but has tripled since 1999. When I was born you had a 33% chance of living for five more years if you were diagnosed with prostate cancer. Today you have a ~90% chance. I don't know why people think nothing is changing.
- m463 3y agoI think it's like voice recognition, which was overhyped in the 90's, then quietly made its way into phone trees, and cars, and now phones so it quietly works everywhere now. I think it used to miss a lot of stuff in the beginning, and that is conflated with missing words occasionally nowadays even though the field has advanced tremendously. which might be analogous to fighting cancer. I personally know many people who have gotten and then gotten over cancer.
- wpasc 3y agoI agree that much is changing in cancer therapy, most promisingly around immunotherapies and other immune related strategies, but the 5 year survival rate change over decades is often attributed to earlier detection as opposed to improved treatments.
- elromulous 3y ago> I don't know why people think nothing is changing. It's because people expect a cure the likes of a vaccine, with >95% efficacy. But it's not entirely their fault, the media all but says "they've cured cancer!" every other day. When you expect a cure, increasing five year survival rate by 10% falls short.
- ekianjo 3y agoMaybe mentioning vaccines efficacy is not very on point with the past few years track record
- ben_w 3y agoI think people expect cancer cures to be as effective as vaccines really are, while also expecting vaccines (and antibiotics) to be as effective as a Potion of Cure Disease in Skyrim.
- cnasc 3y agoHow much of this is due to better detection of cancer? If we discover cancers earlier but still don’t have effective treatment I’d expect the 5-year survival rate to go up even though the actual death day never changed.
- bluGill 3y agoThose things are happening. However it is a decade at best from something in a lab to something in general use. That is at best, quite often things work in a lab, but don't work in the real world. sometimes not work means it works, but the side effects are worse than current treatments (or even worse than doing nothing!) Sometimes it works on a sub group of people and we need more time to figure out who/why it works on and then target those people. if you look at day to day or even year to year it looks like things are not moving. However if you look at decades things have gotten much better.
- murphyslab 3y agoOne aspect of the problem in talking about "cancer" is that we're talking about a large collection of diseases, not a singular disease or phenomenon: > cancer is actually an umbrella term for scores of different diseases—each with its own unique characteristics and, often, unique treatment needs https://www.cancercenter.com/community/blog/2023/10/cancer-is-not-one-disease https://www.cancercenter.com/community/blog/2023/10/cancer-i... So every time I read a headline about a new cancer treatment, I think of it as chipping away at one small rock in a giant field of rocks that we're trying to turn into dust. The university "public affairs" (PR) department may talk about about that small rock as if it were all rocks or all one big rock, and as if the chip was a giant blow. PR people talk like that because their job isn't to convey truth; the PR job is to generate news buzz for the university. So unless you have the time and energy to read those papers, it's best to ignore what the PR people say and just to imagine that picture.
- fnordpiglet 3y agoI think this is aggressively wrong. First, chemo, surgery, and radiation have advanced dramatically over the years. Chemo is an umbrella term for quite a lot of treatments and isn’t some single drug like Tylenol. CAR-T has been effective in treating advanced cancers of certain types and solid tumor CAR-T is advancing fast. Cancer is probably one of the most complex problems we’ve ever tackled with expectation of success. I think it’s considerably harder than quantum computing or other nascent technologies. Further I think we are building fundamental understandings of life itself that leads to enormous adjacent benefits, most especially in aging and longevity. It’s also not a single disease. It’s a description of a behavior of cells in the body that leads to certain outcomes. The causes, mechanisms, etc, are all specific to the cell types, of which there are many, the individual, and random chance. That makes the problem domain almost infinitely complex, so finding a way through it is hard already. But add onto it that cancer cells are you eliminating them without eliminating you is absurdly hard, and leaving even a small number behind risks a relapse that is resistant to the prior treatments because a few cells happened to have a random mutation that protected them. All this said, I think cancer treatment will be a domino effect discovery. We will slog along reading these elusive yet promising articles until one day, we have done enough of the discovery and exploration, and things will be very different very quickly. Similar to AI - I wouldn’t have predicted generative AI would have effectively solved NLP two years ago, despite tons of promising headlines and articles for the last 50 years.
- paulirwin 3y ago> we're still stuck with the same treatments Take a look at CAR T-cell therapy, used for Leukemia and blood cancers (and mentioned in this article). The first trials were happening around 2011, and now there are several FDA-approved therapies using this breakthrough. LLS notes [1]: "In some studies, up to 90 percent of children and adults with B-ALL whose disease had either relapsed multiple times, or failed to respond to standard therapies, achieved remission after receiving CAR T-cell therapy." These are people that would have died 10+ years ago. My younger brother passed away from ALL in 2012 after a clinical trial for one of these treatments didn't work. His participation in the trial, even with the unsuccessful result, helped further the research that is now saving lives that weren't saved before. CAR T-cell therapy is perhaps the most powerful breakthrough against blood cancer in history. Now, it might be able to tackle other cancers as well. We're making progress. Of course we all want it to go faster, but it's happening. 1: https://www.lls.org/treatment/types-treatment/immunotherapy/chimeric-antigen-receptor-car-t-cell-therapy https://www.lls.org/treatment/types-treatment/immunotherapy/...
- philjohn 3y agoImmunotherapy has come along and shown promise - I know someone who is still alive almost 15 years later who initially presented with metastatic melanoma.
- oooyay 3y ago> yet we're still stuck with the same treatments, mainly chemo, surgery, and radiation, and generally low survival rates for advanced cancers. I disagree. Growing up in my teens that was certainly true, but my fathers been battling stage 4 prostate cancer for a little over a decade and had few if any side effects from the treatments. There is a whole line of targeted chemotherapies you can take one after another after another when one stops being effective. On the other hand this can be perceived as a slow march to death from the flu eventually. It was stated to him ten years ago that he likely won't die from cancer. He's now on the last medication he will likely take, which addresses pancreatic cancer that is derived from prostate cancer. What I will argue is archaic is how long his doctor ignored rising PSA levels due to some magical number that the insurance company would not act before. At that time, the only route he had was removal of his entire prostate which causes a lot of quality of life issues. Since then they've developed more targeted treatments but I don't know that they're training family practitioners adequately yet still.
- rootusrootus 3y agoMy mom was diagnosed with a form of aggressive kidney cancer about 10 years ago that had no really great treatments. Luckily it had not spread (apparently) and they cut out the whole kidney with good success. Until about 4 years ago when it returned, and it had spread to several places. She was going downhill so fast the changes were detectable day-by-day, but they started her on an immunotherapy combination that worked wonders. Gave her about 4 years, as it turns out, she finally succumbed to the cancer a few weeks ago. But it was an amazing four years! And that treatment did not exist when she was originally diagnosed. She'd have been dead years ago if they hadn't been able to buy her enough time for the treatment to become available. Which is to say, I don't agree with your statement. Cancer treatment has made really great strides and continues to do so.
- boredemployee 3y agoSorry for your loss!
- jseliger 3y agoKeytruda (pembrolizumab) has been an incredible breakthrough for many cancers. CAR-T therapies have been amazing for non-solid cancers. I personally am hoping to hold on until mRNA cancer vaccines are available via clinical trial (bit more about that towards the bottom of this: https://jakeseliger.com/2023/09/09/life-swallowing-tasting-and-speaking-after-a-total-glossectomy-meaning-i-have-no-tongue/ https://jakeseliger.com/2023/09/09/life-swallowing-tasting-a...), and there have been incredible early results with them. Cancer treatments are improving, but with agonizing slowness due to FDA intransigence: https://jakeseliger.com/2023/07/22/i-am-dying-of-squamous-cell-carcinoma-and-the-treatments-that-might-save-me-are-just-out-of-reach/ https://jakeseliger.com/2023/07/22/i-am-dying-of-squamous-ce....
- monero-xmr 3y agoHang in there man. Do you feel any better with your latest treatments?
- deleted 3y ago[deleted]
- DennisP 3y agoStage 4 melanoma used to mean you'd be dead in a year. I personally know someone who was flat-out cured of stage 4 melanoma. Her only treatment was three doses of immunotherapy. Her tumors shrank by two-thirds almost immediately. For the next seven years they just monitored, and finally they declared her cancer-free. She doesn't even have to go in for scans anymore.
- jmcgough 3y agoWe have made huge progress in a relatively short amount of time. Cancer has been difficult to cure for three reasons: - Cancerous cells are very similar to non-cancerous cells, and hard to target without harming the rest of the body - If one treatment is unsuccessful, cancer can adapt by mutating to bypass your attempt. - Cancer isn't a single disease. It is thousands of diseases with a similar outcome: uncontrolled growth with invasion. You really have to understand the entire signaling pathway and the various tumor suppressor genes / oncogenes in order to understand all the many ways cell replication can go wrong. Even within a single classification (say, breast cancer) you have HER2+ breast cancer (which has an overdensity of RTK leading to growth factor independence), estrogen receptor+ breast cancer, and others, all of which require a different treatment approach, and the cancer can adapt by mutating further down the growth factor signaling pathway if you attack it in one place.
- Cthulhu_ 3y agoThings are moving though. My mum spent a day on a machine that filtered out stem cells from her blood, that were donated to her brother to rebuild his immune system. The old treatment was a much more invasive bone marrow transplant, IIRC.
- SmoothBrain12 3y ago[flagged]
- sp0rk 3y agoIs the content of the article not exactly what the headline says?
- Izkata 3y agoIt is not. As a simplified analogy, the title is saying "we identified this lock on the cells", while actually the "lock" has been known for a long time and what they identified was a possible "key" that might fit, but they haven't actually done it yet.
- jquery 3y agoSo have cancer cells... in fact I believe that's the problem.
- verdverm 3y agoCell division is imperfect, pretty much impossible to avoid mutation and loss over the lifetime of an organism. This compounds over time and is the reason most cancers are later in life
- deleted 3y ago[deleted]
- postalrat 3y agoMany animals seem resistance to cancer. Including big animals like whales where you'd think if was simply statistics on cell division they would be more likely to get cancer.
- esturk 3y agoBut size/height does play a role in humans. For example, shorter people tend to live longer average lifespans.[1] [1] https://pubmed.ncbi.nlm.nih.gov/12586217/ https://pubmed.ncbi.nlm.nih.gov/12586217/
- verdverm 3y agothey seem to have evolved a defense against tumors to quell the growth, but can still get it, and through some skimming of research, it seems to show that most species end up with the same amount of mutations by end of life, so adjusted for different lifespans, or different mutation rates per species
- stubish 3y agoSome studies indicated this resistance was tied to the amount of redundancy in DNA. https://elifesciences.org/articles/21864 https://elifesciences.org/articles/21864 talks about how elephants have 20 versions of the tumor suppressor gene TP53. So it is statistics, and some animals evolved defenses.
- rindalir 3y agoI know that these kind of write-ups by universities tend to overstate the importance of research. However, it's nice to see a write up that at least on the surface goes into some fairly interesting detail and actually does NOT seem to overstate the significance or imply this will result in a single cure for cancer in just a few easy steps.
- andrewxhill 3y agoI really enjoyed this episode of Peter Attia's podcase: https://peterattiamd.com/keithflaherty2/ https://peterattiamd.com/keithflaherty2/. They spend a lot of time breaking down the difficulty in cancer treatment, changes over the past decade, the importance of multimodality therapy, and a lot more. A highlight was Attia's analogy to explain antigen presentation.
- Izkata 3y ago[not what the article is about, but related topic] I first heard of dichloroacetic acid about 15 years ago - a cheap drug that also killed cancer cells by allowing mitochondria to induce apoptosis in the cancer cells and not in healthy cells. https://en.wikipedia.org/wiki/Dichloroacetic_acid#Cancer https://en.wikipedia.org/wiki/Dichloroacetic_acid#Cancer It doesn't appear to have gotten a lot of research into what would be a safe dosage, seemingly because it's an old drug that can no longer be patented.
- darkerside 3y agoInfuriating. Can we not get public research universities to fund this research???
- qup 3y agoor even to just research what are non lethal doses, and set it free
- heavyset_go 3y agoFormulations, therapies, techniques, etc can be patented even if an active ingredient can't be patented. Similarly, modification to structures, prodrugs, etc can be patented, too.
- vore 3y agohttps://cancerquest.org/patients/integrative-oncology/dichloroacetate-dca https://cancerquest.org/patients/integrative-oncology/dichlo... However, in some systems DCA has been shown to PROTECT cancer cells from death. In research with colon cancer cells, DCA prevented the death of the cells in the laboratory and in animals.28 In mice with neuroblastoma, DCA enhanced the growth of tumor cells.29 Another study showed mixed results: DCA did not slow down tumor growth in mice, though it did make it harder for cancerous cells to spread (metastasize).30
- cancerboi 3y agoIt’s nice to read these articles as someone with advanced stage testicular cancer and a 50% 5 year survival. Current treatment is chemo + surgery. Really appreciate all the smart people in this field. Thank you for the work you do!
- RamblingCTO 3y agoMay I ask, how did you find out and how old were you?
- cancerboi 3y agoI found out at age 29 about 4 months ago. My cancer is rare called PMNSGCT. Presented as large solid tumor in chest the size of a cantaloupe. Symptoms were fevers, night sweats, coughing. They thought it was pneumonia at first. Had a big surprise when I went to the ER lol.
- RamblingCTO 3y agoI'm very sorry to hear that! That f*cking sucks! And thank you for sharing. That's something every man should be cautious of. But you say "chest", so checking your balls wouldn't make a difference, right?
- I_Am_Nous 3y agoCancer is funky. My dad had lung cancer that travelled to his brain and affected his vision. That's the only way he knew there was something wrong. Well, that and driving a truck and trailer over another truck and trailer. He went the eye doctor and they said his eyes were healthy. Then they suggested more tests and they found the tumor in his head and the one in his lung. This also points out why cancer is so dangerous, by the time you realize you have cancer it could have spread around your body. Especially cancer in parts with lots of blood supply or close to lymph nodes.
- 3y ago
- robblbobbl 3y agoSwitch to life 8)
- mtr 3y agoAnyone know of any breakthroughs in treating peritoneal mesothelioma?