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CRISPR tech selectively shreds cancer cells, including "undruggable" cancers

innovativegenomics.org

201–210 of 239 posts

Re: CRISPR tech selectively shreds cancer cells, including "undruggable" cancers

#201
post #194

The idea of using CRISPR/Cas to detect tumor-specific mutations that aren't necessarily oncogenic and then kill the cell is not a new one [0, 1, 2]. However, previous studies used Cas9, which just damages the DNA at the target site; this uses Cas12a2, which is far more destructive because it shreds the chromatin in the cell once activated by detecting the target sequence. As with any cancer treatment, it's likely the…

Surely a far simpler way to evolve resistance would be a trivial mutation in the p53 transcript that the guide RNA is looking for.

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Re: CRISPR tech selectively shreds cancer cells, including "undruggable" cancers

#202

CRISPR is an extremely overhyped approach which found a marketing engine via popular science. There is 1 FDA approved CRISPR therapy as compared to 7 for AAV and 7 for Lentivirus. Counting all viral vector therapies that have been approved, we’re sitting at 19 approved therapies versus 1 for CRISPR. I think CRISPR ideas in a lab are just an easy way into the mainstream press, but viral vector delivery is the real fut…

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Re: CRISPR tech selectively shreds cancer cells, including "undruggable" cancers

#205
post #183

In order to kill all cancer cells in the body, it probably needs to be delivered to every single cell in the organism, and scan the nucleus of that cell. Viruses usually don't infect every single cell, just a small percentage. So one needs to figure out a delivery method that is efficient enough, and that doesn't elicit an immune response. But I guess one can analyze the cancer in the lab and figure out which recepto…

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Re: CRISPR tech selectively shreds cancer cells, including "undruggable" cancers

#206

Does anyone know a website where I can see/read of how many cancers (and their variants) we've effectively solved, have drugs to negate their effects, have experimental drugs for and uncurable cancers? I think that graph would be awe inspiring looking at the past decade of advancements. What's more crazy is that we're slowly going from millenia, to decades, to likely years in the near future from being presented a bi…

I think it's difficult to objectively quantify "effectively solved". A good source with loads of information about many diseases and their clinical status is OpenTargets, e.g. https://platform.opentargets.org/disease/EFO_0003860

Re: CRISPR tech selectively shreds cancer cells, including "undruggable" cancers

#207
post #146

Does anyone know a website where I can see/read of how many cancers (and their variants) we've effectively solved, have drugs to negate their effects, have experimental drugs for and uncurable cancers? I think that graph would be awe inspiring looking at the past decade of advancements. What's more crazy is that we're slowly going from millenia, to decades, to likely years in the near future from being presented a bi…

It's not as great as you might think, despite all the stories you see like this one. That's because most of the stories are in cells (this one) or mice. The big success story, about 20 years old now, is testicular cancer. You can have metastatic testicular cancer with tumors all over your body (like Lance Armstrong had) and they can cure it. They use platinum based chemotherapy and it's not really well understood why…

I think some class of melanomas and small-cell lung cancers went from 6 month survival to now completely "cureable" using immunology drugs

Re: CRISPR tech selectively shreds cancer cells, including "undruggable" cancers

#208

Does anyone know a website where I can see/read of how many cancers (and their variants) we've effectively solved, have drugs to negate their effects, have experimental drugs for and uncurable cancers? I think that graph would be awe inspiring looking at the past decade of advancements. What's more crazy is that we're slowly going from millenia, to decades, to likely years in the near future from being presented a bi…

All in all what a century to be alive in, 100 years ago many people were living in mud huts globally (even in rural Europe) and now we have CRISPR, self-driving and hopefully UBI in a few years/decades. So much to look forward to.

Re: CRISPR tech selectively shreds cancer cells, including "undruggable" cancers

#209

Earlier quoted context omitted.

That's a good article with a good point. As a caregiver impatiently waiting for Daraxonrasib, I can at least acknowledge that the institutional machinery is going as fast as it can. I've litterally witnessed a trial patient in the first cohort of a drug (that went no further) be rushed from infusion to the hospital; the trial process cannot be sped up from its current state without endangering lives.

> As a caregiver impatiently waiting for Daraxonrasib Same here. Are you and your care recipient familiar with the Optune Pax device that the FDA approved in February? https://www.fda.gov/news-events/press-announcements/fda-appr... My father's been using it since April. It's a little cumbersome and only improves overall survival rates by about two months over chemo alone, but we're hoping that it helps him remain rel…

Thanks for that. I wasn't aware. She doesn't repond well to that regimen, so it doesn't apply to us.

We should be alright. We're on track for the expanded access program. Also, it's a long story, but she was taken off an Irinotecan-containing regimen prematurely about a year ago. In hindsight, she was clearly reaponding very well to that particular drug, so we've got that in our toolkit.

Re: CRISPR tech selectively shreds cancer cells, including "undruggable" cancers

#210
post #146

Does anyone know a website where I can see/read of how many cancers (and their variants) we've effectively solved, have drugs to negate their effects, have experimental drugs for and uncurable cancers? I think that graph would be awe inspiring looking at the past decade of advancements. What's more crazy is that we're slowly going from millenia, to decades, to likely years in the near future from being presented a bi…

It's not as great as you might think, despite all the stories you see like this one. That's because most of the stories are in cells (this one) or mice. The big success story, about 20 years old now, is testicular cancer. You can have metastatic testicular cancer with tumors all over your body (like Lance Armstrong had) and they can cure it. They use platinum based chemotherapy and it's not really well understood why…

That's understating the progress by a lot - many cancers are a lot more survivable now than previously with better chemo/radio/surgery + immunotherapies + car-t etc etc
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