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What is Cancer?
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Discussion Forum
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Nov 5 2008, 4:55 PM EST by
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Thread started: Nov 5 2008, 4:55 PM EST
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I started a website to try to answer this question. Please help:
http://whatiscancer.org
Further explanation can be found here: http://rafefurst.wordpress.com/2008/11/05/what-is-cancer/
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Visualizing the "diseasome"
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Oct 19 2008, 1:05 AM EDT by
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Thread started: Oct 19 2008, 1:05 AM EDT
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http://www.nytimes.com/interactive/2008/05/05/science/20080506_DISEASE.html
Every time I see something like this I am struck with the anxious feeling that there is so much to glean from visualization of complex data sets, yet we are so primitive in our ability to generate these on a large scale and flexibly ask questions. For instance it's really instructive to see here that all cancers cluster together genetically and represent an island in the larger network of diseases. But I'd like to now ask, to what extent are genes a factor in each of these diseases (vs. all environmental and developmental influences). The number of genes involved that the circle sizes represent give a proxy, but are misleading, and probably roughly inverse when it comes to the question I asked.
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DanieliH |
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Newsweek article - "We Fought Cancer...And Cancer Won"
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Oct 3 2008, 12:13 PM EDT by
DanieliH |
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Thread started: Oct 3 2008, 12:13 PM EDT
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http://www.newsweek.com/id/157548
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Scientific American special edition
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Aug 30 2008, 1:55 PM EDT by
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Thread started: Aug 26 2008, 3:49 PM EDT
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I'm guessing many/most of you know about the recent Scientific American special issue on cancer. If not, it's worth checking out. In particular, Way Gibbs' article is superb (though it appears to be a straight re-print?)
Although we should all be pleased that there is some attention being focused on cancer's complexity, I disagree with their treatment of cancer evolution:
http://rafefurst.wordpress.com/2008/08/22/cancer-as-evolution-part-2/
I also wrote a letter to the editors expressing my concern on this front.
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Last Reply:
RE: Scientific American special edition
By: ,
Aug 30 2008, 1:55 PM EDT
Actually, I did quite a bit of new reporting to bring my article up to date. You'll notice, for example, that it reports on Beth Weaver's research on CENP, a gene implicated in the aberrant cell divisions that lead to aneuploid, pre-cancerous cells. I learned about that research at a conference Rafe and I attended in Oakland last year.
Wayt Gibbs
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DanieliH |
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Black Rasberries and Gene Expression (animal models)
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Aug 28 2008, 2:10 PM EDT by
DanieliH |
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Thread started: Aug 28 2008, 2:10 PM EDT
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http://researchnews.osu.edu/archive/berrygene.htm
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Moisturizers promote skin cancer (mice)
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Aug 28 2008, 2:07 PM EDT by
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Thread started: Aug 28 2008, 2:07 PM EDT
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http://www.webmd.com/melanoma-skin-cancer/news/20080814/moisturizers-up-skin-cancer-in-mice
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The China Study
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Aug 24 2008, 9:53 PM EDT by
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Thread started: May 22 2008, 5:30 PM EDT
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Has anyone read this book?
http://www.thechinastudy.com/about.html
Are there any glaring fundamental flaws with his conclusions?
If you had to bet your life savings on whether the accepted scientific wisdom 50 years from now will consider his main thesis is either "definitely true" or "not conclusive", which would you choose?
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Wikipedia entry
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Jul 17 2008, 7:46 PM EDT by
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Thread started: Jul 17 2008, 7:46 PM EDT
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Thanks to Carlo Maley, John Pepper, Brian Reid, Sabrina Spencer, Tom Vincent, Stephanie Forrest and Henry Heng, there is now a fairly comprehensive Wikipedia entry on cancer as somatic evolution:
http://en.wikipedia.org/wiki/Somatic_evolution_in_cancer
Of course, you are all encouraged to contribute and maintain this page, grow branches off of it, etc.
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DanieliH |
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Western Diet and Cancer
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Discussion Forum
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Jun 26 2008, 8:23 PM EDT by
Rafe.Furst |
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Thread started: Jun 21 2008, 4:19 AM EDT
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The current issue of Newsweek has an article entitled "Your Lifestyle, Your Genes and Cancer," which presents a concise argument (compared to Campbell's The China Study) linking a Western Diet to Cancer. The article can be found here, http://www.newsweek.com/id/141495
While the article cites a study linking colon cancer to a western diet, there is yet another soon to be published study linking obesity to colon cancer. Abstract found here, http://www.ncbi.nlm.nih.gov/pubmed/18546286?ordinalpos=14&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_RVDocSum
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RE: Western Diet and Cancer
By: Rafe.Furst,
Jun 26 2008, 8:23 PM EDT
Relatedly, here's the Ornish study that was just recently released: http://www.webmd.com/prostate-cancer/news/20080616/change-lifestyle-change-genes
And here's his Good Morning America appearance: http://abcnews.go.com/Video/playerIndex?id=5183215
I particularly like how he frames the current dogma as "genetic nihilism".
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DanieliH |
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Immune System and Cancer
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Discussion Forum
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Jun 21 2008, 4:36 AM EDT by
DanieliH |
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Thread started: Jun 21 2008, 4:36 AM EDT
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An experimental treatment which injected a man with billions of his cloned CD4 T cells has "cured" the man's skin cancer which included tumors in multiple organs. (NEJM) Mainstream media article found here, http://www.guardian.co.uk/science/2008/jun/19/cancer.science
This approach appears to be very promising, as moderate changes in immune function (stress, etc.) do not appear to have much effect on cancer. But, with extreme immunoboost described above the tumor cells are destroyed. Conversely in extreme immunosuppression (HIV/AIDS) we see a marked increase in Kaposi's Sarcoma (also a skin cancer) and other tumors.
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Ancestral environment
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Discussion Forum
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Jun 7 2008, 4:57 AM EDT by
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Thread started: Apr 9 2008, 6:04 PM EDT
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I have heard it claimed that to a large degree cancer is a disease of modern living (diet, chemicals and other environmental insults, behavior patterns, mental stresses, etc). Sure cancer existed in the ancestral environment, but it was rare, even if you adjusted for age.
This would be a hard claim to substantiate, but is there any strong evidence for it? What about data from indigenous populations living in similar ways to their ancestors?
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RE: Ancestral environment
By: ,
Jun 7 2008, 4:57 AM EDT
"Thanks, I've posted copies of the two papers to the Misc Attachments page." They look interesting, thanks Carlo!
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Crowdsourcing Biomedical Computation
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Discussion Forum
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Jun 5 2008, 5:29 PM EDT by
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Thread started: May 11 2008, 11:17 AM EDT
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A friend pointed me to this project recently:
http://www.hhmi.org/news/foldit20080508.html http://www.fold.it/portal/adobe_main/
Independent of whether you think protein folding prediction will help us understand cancer better, what do you think of the idea of harnessing crowdsourcing for complex computational problems which would be fruitful? And what might those applications be for cancer?
For a glimpse of the power of game-style crowdsourcing, check out the work of Louis von Ahn:
http://video.google.com/videoplay?docid=-8246463980976635143
I particularly like the labeling of images application as it illustrates the stark differences between what computers are good and and what humans are good at and it leverages the best of both to solve a practical problem.
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RE: Crowdsourcing Biomedical Computation
By: ,
Jun 5 2008, 5:29 PM EDT
How about mining the data coming out of genome sequencing to infer structure? I realize that this is often how "genes" are found, but since the gene model is inferior to more structured, multi-level models of genetic information that are emerging, perhaps some number crunching would assist in exposing hidden structure that could be incorporated into better models and theory.
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Evolution of E. coli
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Discussion Forum
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Jun 5 2008, 3:18 PM EDT by
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Thread started: Jun 5 2008, 3:18 PM EDT
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http://scienceblogs.com/loom/2008/06/02/a_new_step_in_evolution.php
How does this relate to cancer?
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DanieliH |
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Stress and Cancer
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May 30 2008, 6:12 PM EDT by
DanieliH |
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Thread started: May 30 2008, 6:12 PM EDT
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While (Mental/Psychological) Stress is linked to Metabolic Syndrome (Heart Disease, Diabetes, etc) , Reproductive and Immune System problems, a host of other maladies, and more generally a shorter lifespan, there appears to be no link between stress and cancer.
There exists little evidence linking stress to a greater incidence of cancer or a greater chance of relapse (out of remission.) Even research on the effects of positive mental states ("fighting spirit) and social interaction (to reduce stress) have mixed results.
What do we make of this? Why can stress negatively impact almost everything in our daily lives, but has no apparent affect on cancer?
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Lamarkian inheritance
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May 30 2008, 5:56 PM EDT by
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Thread started: Apr 9 2008, 6:20 PM EDT
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Ann Kulze also pointed me to the following:
http://oregonstate.edu/dept/ncs/newsarch/2006/Dec06/children.html http://www.naturalnews.com/z021083.html
What I find most fascinating is that environmental influences actually can and do have genetic reverberations down multiple generations of offspring. Lamark was discredited for saying this many years ago.
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RE: Lamarkian inheritance
By: ,
May 30 2008, 5:56 PM EDT
I'm not sure if this fits exactly with what you are saying but studies from the Dutch Hunger Famine show that malnourished women were likely to have children with low birthweights, who were in turn likely to have children with low birthweights and so on. (Multigenerational effects)
Lumey, L. "Decreased birth weights in infants after maternal in utero exposure to the Dutch famine of 1944-1945"
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Beyond the Gene
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Discussion Forum
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May 29 2008, 5:01 PM EDT by
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Thread started: May 29 2008, 5:01 PM EDT
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In an earlier post, I argued that the gene concept is in bad need of a makeover. It turns out that Evelyn Fox Keller and David Harel feel the same way and have made an actual start of it in a paper titled Beyond the Gene. In the paper they propose a new lexicon:
* dene - “Like the gene, our notion of dene is intended to capture the essence of genetic transmission, but, rather than being confined to denoting a discrete chunk of DNA, it is far richer and more expressive.” * bene - “As with denes, our notion of bene will also be extremely rich, making it possible to express complex modal and temporal characteristics of the organism’s behavior over time, characteristics that go far beyond simple statements about, e.g., protein synthesis or transcription.” * genitor (aka genetic functor) - “…a genitor relates a particular dene to a particular bene, stating that whenever the organism’s DNA is seen to satisfy the property expressed by the dene, it’s behavior satisfies the property expressed by the bene.” And later, “…A genitor, with its dene and bene, connects the static with the dynamic. It carries no expectation that its truth can be predicted on the basis of purely structural information.”
[ for the rest of the blog post go here:
http://rafefurst.wordpress.com/2008/05/29/beyond-the-gene/
]
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Popular Writing
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Popular Writing
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May 28 2008, 10:03 PM EDT by
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Thread started: Apr 6 2008, 2:09 PM EDT
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Harper's Magazine just ran a piece which as far as I know is the biggest layman/mainstream exposition of the notion that cancer is an evolutionary process. See the "Contagious Cancer" link on the new page called Popular Writing. It references the Nature review article written by several of the members of this group and details how they came together to write it.
I think this is a very positive development. Although we would like to think that science relies on the empirical and on logical argument, it would be naive to think that popular opinion doesn't have a large influence on which scientists' voices are heard, who gets funding, and ultimately who ends up getting the respect of their peers. Before Taleb wrote Fooled by Randomness and The Black Swan he was tilting at windmills trying to get academics and finance gurus to see the truth. Now, he's invited to speak around the world and is taken very seriously. While it's a crap shoot create a bestseller, the more popular we can make the memes that exist in this forum and around your research labs, the more likely funding and attention will confer to your work.
I encourage you all to write popular pieces, speak to popular press, and even go for that NYT bestseller. It is time and energy well spent.
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RE: Popular Writing
By: ,
May 28 2008, 10:03 PM EDT
I enjoy popular science writing and I would love to write such a book at some point, but given my grant writing demands (and text book writing commitments) I can't see it happening in the near future. :( Maybe my friend Olivia Judson would be interested...
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Making this Wiki Public
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Discussion Forum
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May 28 2008, 9:59 PM EDT by
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Thread started: May 22 2008, 5:41 PM EDT
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After formally and informally polling everyone currently on here, it seems like the best way to achieve critical mass of activity is to make it public.
There were two valid concerns, one of which was that some people would be fearful of speaking their mind if it were public. If you for whatever reason wish to have any of your writing or involvement removed before we make this public, feel free to let me know privately or otherwise and I am happy to do so.
The other concern was the signal-to-noise ratio, but given the relative lack of signal so far, we can cross that bridge when the time comes. I don't personally see too many trolls and flamebaiters interested in cancer complexity, but who knows :-)
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Socioeconomics of Cancer
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Discussion Forum
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May 28 2008, 6:11 PM EDT by
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Thread started: May 28 2008, 6:11 PM EDT
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When I created the poll question on the home page of this wiki regarding socioeconomic factors of cancer mortality in America I had misremembered what comparisons had been made. While I suppose the question as stated can be answered in theory, the information I received from Dr. Freeman really only spoke directly about race and poverty, not obesity and smoking (except as the are potentially co-related factors).
That said, I thought the data and arguments that Dr. Freeman presents were fascinating and I've put them together in a blog post here:
http://rafefurst.wordpress.com/2008/05/28/the-socioeconomics-of-cancer/
If anyone has data that can help answer how smoking and obesity compare or factor into the equation explicitly, please post them as replies to this thread.
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Open Letter to Gotham Prize
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Discussion Forum
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Apr 12 2008, 12:26 PM EDT by
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Thread started: Apr 12 2008, 12:26 PM EDT
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I posted the following open letter to the Gotham Prize today:
http://rafefurst.wordpress.com/2008/04/12/open-letter-to-gotham-prize/
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