Matching Cancers With the Best Chemical Treatments
Roland Piquepaille writes "When oncologists meet a new patient affected by a cancer, they have to take decisions about the best possible treatment. Now, U.S. researchers have devised an algorithm which matches tumor profiles to best treatments. They've used a panel of 60 diverse human cancer cell lines from the National Cancer Institute — called NCI-60 — to develop their "coexpression extrapolation (COXEN) system." As said one researcher, "we believe we have found an effective way to personalize cancer therapy." Preliminary results have been encouraging and clinical trials are now planned."
now that they are personalizing the treatment can you get any other flavors of kemo?
There is hopeful symbolism in the fact that flags do not wave in a vacuum. --Arthur C. Clarke
Lets just hope that doctors who use this algorithm still throughly examine every patient before beginning treatment, because, while probably useful, I doubt its as effective as a full examination by a professional. I kinda wonder if this would be used in lesser insurance policies to substitute extensive examinations. Premium insurance plan gets a full examination prior to treatment, the plans that cost less have the cancer run through an equation, and a treatment is printed out.
Imagine this. You go to the supermarket. Right there, next to the pork chops and sirloin steaks, is a cancer. A real human cancer. No creature was ever killed for it, so it's even vegan and PETA would love it.
You take it home, grill it up, and... well how does it taste? Do different types of cancer have different flavors? Which ones are good?
The stuff is damn easy, too easy even, to grow. We might as well make use of it.
I bet you they're running the COXEN in some boxen.
I bet you the COXEN is a big... application, and the boxen are tight...ly... integrated... if they run Linux. Otherwise the boxen are hosen. Or something.
*ducks*
Most doctors won't even use computers to help them make diagnoses because they feel they should always be able to do better. What tends to happen is that if a rare condition presents they can miss it quite easily. I'm no doctor but I believe it has to do with the medical profession's heritage, culture and the politics of their licensing institutions. Doctors are taught that every diagnosis can be life or death. Using an aid like a computer to make the decision therefore is seen as a sign of weakness.
When you think about it that's insane. There's no way any doctor can know every medical condition that presents, even the rarer ones. What's needed is a system whereby the doctor can check his diagnosis against what comes up with a computer search against the same symptoms. There needs to be no stigma in doing this. If something comes up that's rare but could fit the doctor then needs to have a think about whether it's worth addressing. Systems like this have been rejected by the medical profession time and again which is unfortunate because to get good at diagnosis they'd need to be honed with a lot of feedback, particularly where multiple conditions present. However they have the potential to help pick up serious conditions earlier than what even the best doctor might without them.
Same goes for this system except we're talking treatment choice not diagnosis. One hurdle is getting other doctors to accept it. Another is making sure the control and final say remains with the doctor and patient not some machine. There'd be great temptation for the medical insurers to use such a system to avoid providing treatment that a doctor believes is necessary.
These posts express my own personal views, not those of my employer
Variations exists, so its not that straight forward, however Algorithms like these act as a wonderful reference.
There is a lab in Germany that's been doing that for years now. This isn't a new idea. I'm just really surprised and a bit disappointed that no one in the US has bothered to do something like this before.
int drug_choice_algorithm(){
int our_most_expensive_drug = 1;
int other_cheaper_option = 0;
if(patient_has_insurance()){
return our_most_expensive_drug;
}
else {
if (patient_is_rich()){
return our_most_expensive_drug;
}
}
return our_most_expensive_drug;
}
Marge: But the grocery store sells meat for 35 cents a pound.
Lisa: And it doesn't have teeth and hair in it.
Homer: Those are prizes.
To see all the underlying data, go to DTP Human Tumor Cell Line Screen data page on the National Cancer Institute's Developmental Therapeutics Program web site. There's a lot more data listed here.
This is most likely a tumor type that is called teratoma (literally: "monstrous tumor").
http://en.wikipedia.org/wiki/Teratoma
I work at the Huntsman Cancer Hospital, a division of the University of Utah hospital. I draw blood on dozens of patients every day and see the same pattern of treatment as we see similar cancer patients come in. I can only see this as a good thing to help diversify and specialize treatments.
As someone who won the lottery and was treated in a cancer hospital myself, I found my doctor seemed to put me on a fast track to treatment, straight out of the books, which involved removing an important part of my anatomy (not THAT part). With much resistance on my part, I got him to investigate other options and I actually got to keep my spleen.
From a doctors POV, I know it can be difficult as well as uneconomical to see every patient as a super-special-individual-with-their-own-needs-and- feelings, but with the type of stigma surrounding the C-word (not THAT C-word) it is pretty much a necessity, at least from my experience. If this new system requires doctors to spend a little more time with a patient and yield a higher success rate, then it is an all-around win.
"Thank you for using Stop-n-Drop, America's favorite suicide booth since 2008"
Did anyone else read this as, "Matching Cancers With the Breast..." when they first skimmed over the title?
Replace int with long int to be more accurate. :-)
A good article on the cancer industry--> http://www.newstarget.com/021892.html
Can you say 'Licensing Fees'?
John Coxen
Time's fun when you're having flies. - Kermit the Frog
From TFA "Another issue is that the 60 cell lines did not include all important cancer types (for example, certain bladder cancers, lymphomas, and small cell lung cancers were not among the 60 lines studied)."
/. I hope it will eventually help someone to not go through the hell that is cancer treatment because it doesn't do anything for me
Soooo. My wife (Lymphoma when she was 32) and me (Small cell Lung Cancer at 37) aren't included. My treatment was with chemo drugs that have been in use for 30+ years (VP-16 & Cisplatin) with Chest Radiation. It really sucks that there aren't any new treatments for anything except Breast Cancer these days.
I would liked to know that advances in SCLC could give me more time than the (only 5% make it to 5 years) and I am 1 year into it.
I don't want to sound sour but everytime I see a cancer story on
Success is not the result of spontaneous combustion, you must set yourself on fire.
Cancer is hell one way or another. My girlfriend and I are going through it right now as she was diagnosed with breast cancer earlier this year, and is in her 16th week of chemo. The really, REALLY hellish part for us though, is knowing that there may be better treatments out there, and the thing that is holding us back from it is the way the insurance system works in Japan where we live. There are two kinds of drugs, insured and uninsured. Simple enough. The problem is, the Japanese national health insurance system works in a way that if you chose to use an uninsured drug, you are uninsured for all related medical expenses. Everything from visiting the doctor for counseling, all the way to the radiation and hormonal therapy that is otherwise covered by insurance. The end result is that you have to be filthy rich to pay for it all (approx. $20,000 per month for the duration of treatment, which is a couple years) or you're SOL.
I'm sorry to hear that there haven't been many large advancements in the area of your particular kind of cancer. That said, it's sometimes even more painful to know that there are better treatments, but you're not eligible because you aren't rich enough. I'm all for this algorithm and better diagnosis, but I wonder if, in my girlfriend's particular case, the end result wouldn't simply be a confirmation that indeed we can't use the drug that is perfect for her cancer.
And of course there are myriads of other things we're (literally sometimes) pulling our hair out over. Things like medical marijuana. While puritans and the ignorant are arguing over morality and whether or not it should be legal, my girlfriend is given a medicine that barely helps her nausea and lack of appetite, and her family and I need to work hard with her to make sure she doesn't waste away.
I guess what I'm trying to get to is that these medical advancements are great, but simply removing a bunch of brureaucratic road blocks alone would do wonders.
And yeah, I think I went a bit OT there. I share you're pain though, and I guess I needed to vent a bit.
I had no idea that there were countries that had a more fucked up system then what they keep telling us we have here in the U.S.(Micheal Moore & the movie "Sicko")
The most unbelievable part is that there is a tiered approach. Thank you for the eye opener and best wishes to your lady.
P.S. If you don't have Kytril or similar for nausea, this should be easy for you in Japan - Ginger lots of it.
Success is not the result of spontaneous combustion, you must set yourself on fire.
Graviola is shown to be upto 10000 times more effective than chemo on some cancers, but you are unlikely to find anyone recommending it as the drug companies are more interested in finding the active component and patenting it than helping cure people.
A friend of mine has cancer that was so bad she was warned that the treatment was more about managing the progress of the disease than curing it. After 6 months her doctor could not explain why her cancer was in remission. The reason she gives is the gaviola capsules she had been taking. Now whether it was not as bad as she believed in the first place or it was positive thinking or something else I do not know. But I do know I am prepared to be counted as a believer in herbal medicine.
If anyone wants to know where she got them from, I will find out and post here if requested. I think it was a small company in Bradford (UK).
Effective cancer therapies are unprofitable because the patent has expired, or is by its very nature unpatentable. DCA's patent expired years ago, Vitamin D is just a regular vitamin especially concentrated in Cod liver oil, and Ozone and Hydrogen Peroxide are just ways of getting extra oxygen into an mass of anaerobic rogue cells.
Some of the things Edgar Cayce (early proponent of holistic medicine) recomended for lung cancer were Castor oil packs and brandy fumes inhaled from a charred oak barrel...
The main thing is to take charge of your own health. Dr. Zieve's book, Healthy Medicine has a good overview of a medical system that is patient-oriented, rather than organized for the benefit of teh profiteers.
Learn the rules so you know how to break them properly.
www.teslabox.com
we did things like this over a decade ago at SUGEN. i did some stuff like this in the years after SUGEN too, just for fun, but took a completely different approach. the main caveat is that some of the NCI screening data is questionable, so extrapolating from those particular zones would likely be bogus. if anyone is really interested in this stuff, there is a nice 1997 article where NCI reviewed its efforts in _Science_, volume 275, number 5298, pages 343-349, (DOI: 10.1126/science.275.5298.343)
there is one little statistical typo that i found, and some of the assay conditions for certain cell lines may not have been optimal, but here's the abstract:
An Information-Intensive Approach to the Molecular Pharmacology of Cancer (Weinstein, et al.)
WHAT A CROCK! And I suppose this will also enlarge my penis. You make the claim that it's "shown to be up to 1000 times more effective". Cites, please. And don't go trotting out the supposed study from Johns Hopkins. That's an urban legend that they have been trying to kill for a while. http://www.snopes.com/medical/disease/cancerupdate .asp
OK, I don't see anybody else here posting to this point, so I thought that I would jump in here.
The thing that is really striking about this study is that this is the first example that I've heard of that uses genetic information about an individual patient to customize treatment. Most treatment decisions simply look at individual phenotypes (ie, apparent, external traits) to help make the decisions, but by starting to look directly at genotypic information, we are getting much closer to the point of actually treating the fundamental, underlying sources of the problems instead of just targeting behaviors.
Eventually, I would expect that this is where medicine will go, especially for things like cancer. For example, let's say that a particular form of cancer is triggered in part by a failure of a given molecular pathway. If you can run a genetic screen (like is being done with the micro-arrays here), you will be to able to specifically diagnose the original cause of the cancer, so by providing a drug that restores this individual pathway, you can block the growth of the cancer and allow the body's natural checks to help bring things under control.
To be clear, this study is a long way from that point. Right now, all they have done is find the correlations between genotypes and responses to treatment, which is a good first step, especially if it provides predictive power. A next step will be to use these correlations to help understand the exact mechanisms happening in those particular cancers and how the treatments have effected those mechanisms. From there, you can start to customize the treatment to be more specific, giving few side effects and more effective response.
In any case, it's pretty neat, and we can expect more and more of this sort of thing as new technologies in biology start hitting the market and older technologies keep improving throughput and efficiency.
Osteopathy was able to survive the great purges of the late 19th and early 20th centuries not only because the philosophy is superior to Allopathy, but also because it was organized enough to resist the American Medical Association's onslaught. Andrew Taylor Still, founder of Osteopathy, didn't care much for the Materia Medica, but pharmacology was added to the Osteopathic curiculum early in the 20th century in order to keep the profession from being exterminated.
Today most Doctors of Osteopathy's practice is identical to a Medical Doctor's, but some do utilize their manipulation training, and a handful specialize in manipulation. My D.O.'s work would seem like magic to the uninitiated - some light touches here & there, and with some patients, *poof*, all better (other patients, including myself, take a bit longer to receive all the benefit they can from his techniques). There's quite a science to what he does, but he never tries to explain much of the detail about his findings/diagnosis to me (I get the layman's explanation when I ask).
I don't mean to be inflammatory - it's just that I wasn't helped by the 'regular' doctors I visited, went somewhere else, and am satisfied with the results I've obtained. Drugs and surgery do have their place, of course, but most health complaints are better treated with gentler methods that better address the cause.
Robert Zieve is also an M.D. - you might like his book, Healthy Medicine: A Guide to the Emergence of Sensible Comprehensive Care.
Learn the rules so you know how to break them properly.
www.teslabox.com
where I can go to a hospital, have my life-threatening ailment reduced to a few numbers and receive "personalized" treatment by plugging them into a cold, unfeeling math equation.
While the story uses a poor choice of language, the ability to cut-down arbitrary treatment plans would be a step in the right direction. More surgical strikes instead of carpet-bombing.
Dewey, you fool! Your decimal system has played right into my hands!
"WHAT A CROCK!" !! well its nice of you to dismiss it so quickly and easily. My friend was relieved to know that her delayed funeral was just a figment of her and my imagination.
I also said upto 10,000 times more effective, not just 1,000! This is the claim that outrages you so much. I can understand that as it does seam to good to be true, but then ketchup was reported in the national press (UK) earlier this year to be a very effective treatment for prostate cancer. Sadly I cannot remember the study they based that story on.
I let my friend know your comments and her response was to ask me to post the following information for you. Now upon reading it I notice that the reference is actually against one particular chemotherapy drug which I have no idea if it is the best one for the job or not.
The following quote is not from Johns Hopkins and in fact makes no mention of him/it.
Quote:
Much of the recent research on Graviola has been on a novel set of phytochemicals that are found in the leaves, seeds and stem of Graviola which are cytotoxic against various cancer cells. In an 1976 plant screening program by the National Cancer Institute, the leaves and stem of Graviola showed active cytotoxicity against cancer cells and researchers have been following up on this research ever since.(21) Two separate research groups have isolated novel compounds in the seeds and leaves of the plant which have demonstrated significant anti-tumorous, anticancerous and selective toxicity against various types of cancer cells, publishing 8 clinical studies on their findings.(22 - 29) One study demonstrated that an isolated compound in Graviola was selectively cytotoxic to colon adenocarcinoma cells in which it was 10,000 times the potency of adriamycin (a chemotherapy drug).(23) Cancer research is ongoing on Graviola, and four new studies have been published in 1998 which further narrow down the specific phytochemicals which are demonstrating the strongest anticancerous and antiviral properties.(30 - 33)
Footnotes:
1. de Feo, V. 1992. Medicinal and magical plants in the northern Peruvian Andes. Fitoterapia63: 417-440
2. Vasquez, M. R., 1990 Useful Plants of Amazonian Peru. Second Draft. Filed with USDA's National Agricultural Library. USA
3. Grenand, P., Moretti, C., Jacquemin, H., 1987. Pharmacopees taditionnels en Guyane: Créoles, Palikur, Wayãpi. Editorial l-ORSTROM, Coll. Mem No. 108. Paris, France
4. Branch, L.C. and da Silva, I.M.F. 1983. "Folk Medicine of Alter do Chao, Para, Brazil." Acta Amazonica 13(5/6):737-797.
5. de Almeida, E.R., 1993. Plantas Medicinais Brasileiras, Conhecimentos Populares E Cientificos. Hemus Editora Ltda.: Sau Paulo, Brazil.
6. Asprey, GF. & Thornton, P. 1955. Medicinal Plants of Jamaica. III West Indian Med J 4: 69-92
7. Ayensu, ES. 1978. Medicinal Plants of the West Indies. Unpublished manuscript: 110P-(1978) Office of Biological Conservation Smithsonian Institution, Washington, DC
8. Weniger, B. et.al., 1986. Popular Medicine of the Central Plateau of Haiti. 2. Ethnopharmacological Inventory J Ethnopharmacol 17 1: 13-30 (1986)
9. Feng, P.C. et.al., Pharmacological Screening of Some West Indian Medicinal Plants. J Pharm Pharmacol 14 : 556-561 (1962)
10. Meyer, TM. The Alkaloids of Annona Muricata. Ing Ned Indie 8 6: 64- (1941)
11. Carbajal, D., et.al., Pharmacological Screening of Plant Decoctions Commonly Used in Cuban Folk Medicine. J Ethnopharmacol 33 1/2: 21-24 (1991)
12. Misas, CAJ et.al., Contribution to the Biological Evaluation of Cuban Plants. IV. Rev Cub Med Trop 31 1: 29-35 (1979)
13. Sundarrao, K et.al., Preliminary Screening of Antibacterial and Antitumor Activities of Papua New Guinean Native Medicinal Plants. Int J Pharmacog 31 1: 3-6 (1993)