HorizonForumsone horizon
Log inSign up

[ms] · Est. May 2002

Music madethis place,we just kept itgoing...

One durable person. One social graph. Many communities—and every way people speak, share, listen, write, gather and remember.

Forums / General Yakkity Yak

WTF is up with cancer

26 durable postsStarted 2009-10-14Latest 2009-10-25
#75989Post 1 of 26

and everyone dying from it?

Seriously every person I know of who's died or is dying, is due to cancer. WTF?!

#1283417Post 2 of 26

Re: WTF is up with cancer

worlds biggest killer by 2010

didnt kill me and a lot of people beat it every year

never give up

#1283419Post 3 of 26

Re: WTF is up with cancer

[QUOTE=Adzey;797627]worlds biggest killer by 2010

didnt kill me and a lot of people beat it every year

never give up[/QUOTE]

Big ups to those who find the strength to fight it! Max respect

#1283428Post 4 of 26

Re: WTF is up with cancer

Yes..this cancer business is out of control. Very scary! Right on Adzey!!! Very happy you're here with us!!!!

#1283432Post 5 of 26

Re: WTF is up with cancer

and as is the balance of the world!

i aint you northern monkey! ;)

:LoveYou: :Anal: :Naughty:

:lol:

#1283436Post 6 of 26

Re: WTF is up with cancer

^ Your post is making no sense to me! I'll go smoke another...:lol:

#1283437Post 7 of 26

Re: WTF is up with cancer

Thanks Chanty :D

[QUOTE=Dhar_2;797642]and as is the balance of the world!

i aint you northern monkey! ;)

:LoveYou: :Anal: :Naughty:

:lol:[/QUOTE]

Dhar my friend i love it when you get dirty :lol:

#1283442Post 8 of 26

Re: WTF is up with cancer

:shock:

a good friend of mine from college beat it in about a years time after having a tumor removed from her brain, she's 30 years old.

The diagnosis of the cancer before it had spread is the key.

#1283453Post 9 of 26

Re: WTF is up with cancer

Yeah cancer sucks! I had a friend of mine beat it! Other people I knew did´nt have the same luck.

#1283560Post 10 of 26

Re: WTF is up with cancer

After learing about how it all works these past few years, frankly I am amazed more people don't have than what we see now. There are so many systems controlling cell regulation, so many places for things to go wrong, I am just often amazed that so often its able to work right at all.

#1283564Post 11 of 26

Re: WTF is up with cancer

Smoking aside, is it because of the food we're eating these days? I don't recall cancer being so rampant when I was growing up. Surely there must be some kinda environmental/external factor that's causing the increase?

#1283566Post 12 of 26

Re: WTF is up with cancer

one of my best friends has a malignant brain tumour - they could only get 95% out by operation.

4-11months life expectancy. 2 kids to explain it to.

fucking ugly.

#1283575Post 13 of 26

Re: WTF is up with cancer

^Sorry to hear that Huggie:(. My worst nightmare having to tell my 2 little ones. Had to hav a whole bunch of tests last couple months for some health issues, found a couple spots on my liver and lung. Thank god it was nothing, but sad thing is not scary enough to quit tobacco. :evil: To all those fighting it you courage and strength is amazing. That Jimmy V speech from the espy's years ago makes me cry everytime I hear it.

#1283580Post 14 of 26

Re: WTF is up with cancer

That's what I don't get, cancer seems to be afflicting just as many non-smokers from my anecdotal point of view which makes you wonder if all of us are gonna get it, why bother. But I'm 6 days into not smoking again, gonna see how long this lasts. :lol:

#1283587Post 15 of 26

Re: WTF is up with cancer

[QUOTE=Adzey;797627]worlds biggest killer by 2010

didnt kill me and a lot of people beat it every year

never give up[/QUOTE]

take my hat off to you... Only the word "cancer" makes me shit on my pants.. so scary stuff.. don´t even want to think about it :(

#1283618Post 16 of 26

Re: WTF is up with cancer

[QUOTE=feather;797802]Smoking aside, is it because of the food we're eating these days? I don't recall cancer being so rampant when I was growing up. Surely there must be some kinda environmental/external factor that's causing the increase?[/QUOTE]

The word 'cancer' covers a huge range of illnesses, so it's a bit hard to generalise, but cancers are usually polygenic & multifactorial - they are the result of the interplay of several genes and environmental factors. Your DNA undergoes a lot of damage every day, but we have evolved very efficient DNA repair & response systems that aim to repair this damage, or if that is not possible, to kill the cell. Mutations in the genes that control these systems often lead to a predisposition to certain types of cancer.

That said, diet does play an important role in the development and progression of several cancers. I'm just finishing up a big assignment on fatty acid intake (from beef & dairy products) and prostate cancer (which account for around 25% of all cancers in men - the most common cancer in men by a large margin).

#1286595Post 17 of 26

Re: WTF is up with cancer

Are fatty acids and prostate cancer related?

#1286601Post 18 of 26

Re: WTF is up with cancer

Unfortunately yes. It seems that high amounts of fatty acids are able to transform prostate cells (make them cancerous) and that the beta-oxidation of fatty acids is the dominant bioenergetic pathway in prostate cancer (meaning that they make use of fatty acids to provide the energy they need to rapidly grow & proliferate).

#1286604Post 19 of 26

Re: WTF is up with cancer

^^^^ Good posts !! [QUOTE=coleby761;797817]^Sorry to hear that Huggie:(. My worst nightmare having to tell my 2 little ones. Had to hav a whole bunch of tests last couple months for some health issues, found a couple spots on my liver and lung. Thank god it was nothing, but sad thing is not scary enough to quit tobacco. :evil: To all those fighting it you courage and strength is amazing. That Jimmy V speech from the espy's years ago makes me cry everytime I hear it.[/QUOTE] I feel like getting down on my knees and begging people to stop smoking when I read something like this. :(

Nicotine is such a nasty addictive drug !! A women I know took it up again after she had a mastectomy . !!! It took me years to give it up, and both my parents died of lung cancer.!! I just kept trying everything until I found a way to stop, Smokenders, can't recommend them highly enough!! It's years since I smoked now and don't get any cravings at all.

Good on you Adzey!! I must say although I know a few people who have had cancer in the last few years, none have died and a couple have been clear for a long time. But I know the fight has been very hard.

Huggie, very sad about your friend :(

#1286628Post 20 of 26

Re: WTF is up with cancer

[QUOTE=cohiba;797878]Unfortunately yes. It seems that high amounts of fatty acids are able to transform prostate cells (make them cancerous) and that the beta-oxidation of fatty acids is the dominant bioenergetic pathway in prostate cancer (meaning that they make use of fatty acids to provide the energy they need to rapidly grow & proliferate).[/QUOTE]

Great ... just when I'm trying out a keto diet.

#1286630Post 21 of 26

Re: WTF is up with cancer

Don't worry too much, we're probably talking about people who red meat every night of the week for years and years.

#1288378Post 22 of 26

Re: WTF is up with cancer

[QUOTE=cohiba;797878]Unfortunately yes. It seems that high amounts of fatty acids are able to transform prostate cells (make them cancerous) and that the beta-oxidation of fatty acids is the dominant bioenergetic pathway in prostate cancer (meaning that they make use of fatty acids to provide the energy they need to rapidly grow & proliferate).[/QUOTE]

nm, red that it is [I]high[/I] amounts of FA.

#1289309Post 23 of 26

Re: WTF is up with cancer

[QUOTE=cohiba;797866]The word 'cancer' covers a huge range of illnesses, so it's a bit hard to generalise, but cancers are usually polygenic & multifactorial - they are the result of the interplay of several genes and environmental factors. Your DNA undergoes a lot of damage every day, but we have evolved very efficient DNA repair & response systems that aim to repair this damage, or if that is not possible, to kill the cell. Mutations in the genes that control these systems often lead to a predisposition to certain types of cancer.

That said, diet does play an important role in the development and progression of several cancers. I'm just finishing up a big assignment on fatty acid intake (from beef & dairy products) and prostate cancer (which account for around 25% of all cancers in men - the most common cancer in men by a large margin).[/QUOTE]

It's true what you wrote about the genetic and environmental factors coming into play with cancer. A change in the diet habits of the Japanese from rice based diets t more Western style dining seems to have shifted the type of cancers they were seeing from oronasal to primary GI. But i think the main reason we're seeing so much of it is because modern medicine has progressed so far and the number one killer is no longer diarrhea and severe dehydration from some GI bug. Because of that, the probability of cell signaling gone awry to have those 5 mutations that are irreversible and therefore able to grow a malignant tumor is higher. I do know from friends who are directly on the clinic floor that it seems there's a higher incidence of younger people cropping up with cancers. or it may just stick out to the mind more because they are so young.

As for the fatty acid issue, are they just seeing a correlation between high amounts of FA in the body and prostate cancer or is there some pathway people are working out? Are you thinking about the omega3:6 stuff, which would be a different pathway from beta oxidation? I saw one article from my quick search that talked about FA synthase, but that wouldn't necessarily be dietary in nature. It'd be the nature of the cancer cells preferring to use and make fatty acids. And for some reason the flow of articles stopped in early 2000. I guess I would just be hesitant to state that diet plays a big role is my main point.

#1289364Post 24 of 26

Re: WTF is up with cancer

[QUOTE=minneec;800949] As for the fatty acid issue, are they just seeing a correlation between high amounts of FA in the body and prostate cancer or is there some pathway people are working out? Are you thinking about the omega3:6 stuff, which would be a different pathway from beta oxidation? I saw one article from my quick search that talked about FA synthase, but that wouldn't necessarily be dietary in nature. It'd be the nature of the cancer cells preferring to use and make fatty acids. And for some reason the flow of articles stopped in early 2000. I guess I would just be hesitant to state that diet plays a big role is my main point.[/QUOTE]

A bit busy, so have to reply quickly sorry - one current hypothesis is that branched chain fatty acids (eg phytanic, pristanic acids) can upregulate enzymes involved in peroxisomal beta oxidation, leading to increased ROS production which can contribute to transformation of the cells. High levels of fatty acids can also disrupt ER homeostasis, and one area of current research is why this seems to cause pancreatic beta cell death in type 2 diabetes, but proliferation of prostate cells.

If you want to read a bit more about it, here are the papers & text books I used: * Eizirik DL, Cardozo AK, Cnop M (2008). The role for endoplasmic reticulum stress in diabetes mellitus. [I]Endocrine Reviews[/I]. [B]29:[/B] 42-61.

  • Gaggelli E, Kozlowski H, Valensin D, Valensin G (2006). Copper homeostasis and neurodegenerative disorders. [I]Chemical Reviews[/I]. [B]106:[/B] 1995-2044.
  • Lin JF, Xu J, Tian HY, Gao X, Chen QX, Gu Q, Xu GJ, Son JA, Zhao FK (2007). Identification of candidate prostate cancer biomarkers in prostate needle biopsy specimens using proteomic analysis. [I]International Journal of Cancer[/I]. [B]121:[/B] 2596-2605.
  • Liu Y (2006). Fatty acid oxidation is a dominant bioenergetic pathway in prostate cancer. [I]Prostate Cancer and Prostatic Diseases.[/I] [B]9:[/B] 230-234.
  • Luo J, Zha S, Gage WR, Dunn TA, Hicks JL, Bennet CJ, Ewing CM, Platz EA, Ferdinandusse S, Wanders RJ, Trent JM, Isaacs WB (2002). α-methylacyl-CoA racemase: a new molecular marker for prostate cancer. [I]Cancer Research[/I]. [B]62: [/B]2220-2226.
  • Mera P, Bentebibel A, Lopez-Vinas E, Cordente AG (2009). C75 is converted to C75-CoA in the hypothalamus where it inhibits CPTI and decreases food intake and body weight. [I]Biochemical Pharmacology[/I]. [B]77:[/B] 1084-1095.
  • Mobley JA, Leav I, Zielie P, Wotkowitz C, Evans J, Lam YW, L’Esperance BS, Jiang Z, Ho SM (2003). Branched chain fatty acids in dairy and beef products markedly enhance α-methylacyl-CoA racemase expression in prostate cancer cells [I]in vitro[/I]. [I]Cancer Epidemiology, Biomarkers and Prevention[/I]. [B]12: [/B]775-783.
  • Nelson DL, Cox MM (2008). Fatty Acid Catabolism; Protein Metabolism In: [I]Principles of Biochemistry 5th Edition[/I]. Freeman Press pp 647-667; 1107-1109.
  • Pratt CW, Cornely K (2004). Lipid Metabolism. In: [I]Essential Biochemistry[/I]. Wiley Press, pp 431-440.
  • Scheuner D, Kaufman RJ (2008). The unfolded protein response: a pathway that links insulin demand with β-cell failure and diabetes. [I]Endocrine Reviews[/I]. [B]29:[/B] 317-333.
  • Stacewicz-Sapuntzakis M, Borthakur G, Burns JL, Bowen PE (2008). Correlations of dietary patterns with prostate health. [I]Molecular Nutrition and Food Research[/I]. [B]52:[/B] 114-130.
  • Sung Lee J, Orita H, Gabrielson K, Alvey S (2007). FDG-PET for pharmacodynamic assessment of the fatty acid synthase inhibitor C75 in an experimental model of lung cancer. [I]Pharmaceutical Research[/I]. [B]24:[/B] 1202-1207.
  • Whittemore AS, Kolonel LN, Wu AH, John EM, Gallagher RP, Howe GR, Burch JD, Hankin J, Dreon DM, West DW, Teh CZ, Paffenbarger RS (1995). Prostate cancer in relation to diet, physical activity, and body size in blacks, whites, and asians in the United States, and Canada. [I]Journal of the National Cancer Institute[/I]. [B]87:[/B] 652-661.
  • Voet D, Voet JG, Pratt CW (2006). Lipid Metabolism. In: [I]Fundamentals[/I] [I]of Biochemistry 2nd Edition[/I]. Wiley Press, pp 636-650. [FONT=&quot]* Zha S, Ferdinandusse S, Hicks JL, Denis S, Dunn TA, Wanders RJ, Luo J, De Marzo AM, Isaacs WB (2005). Peroxisomal branched chain fatty acid β-oxidation is upregulated in prostate cancer. [I]The Prostate[/I]. [B]63:[/B] 316-323.[/FONT]
#1289383Post 25 of 26

Re: WTF is up with cancer

[QUOTE=minneec;800949] As for the fatty acid issue, are they just seeing a correlation between high amounts of FA in the body and prostate cancer or is there some pathway people are working out? Are you thinking about the omega3:6 stuff, which would be a different pathway from beta oxidation? I saw one article from my quick search that talked about FA synthase, but that wouldn't necessarily be dietary in nature. It'd be the nature of the cancer cells preferring to use and make fatty acids. And for some reason the flow of articles stopped in early 2000. I guess I would just be hesitant to state that diet plays a big role is my main point.[/QUOTE]

B-oxidation is a major pathway, moreso in the starving state. Though you have a respiratory quotient that shows that it's a high O2 demand pathway (.7 for B-oxidation pathway, 1 for glycolytic pathway), you yield 129 ATP via Palmitoyl-CoA, so it's a favorable pathway to produce energy and thus why you may see it being used in breast/ovarian cancer.

FA synthase would be for the use of building up FA, not breaking them down, so that wouldn't necessarily be favorable unless prostate cells have the ability to store significant amounts of FA in the form of TAGs and then break them back down to be used for B-oxidation (i'm assuming the majority of FA are coming from adipose tissue).

What's interesting is the O2 requirement and the focal hypoxia cancer creates in tissues. Since B-oxidation has a resp quotient of .7 and glycolysis at 1, I would suspect that once angiogenesis has occurred, there may be a switch from using the glycolytic pathway to using b-oxidation once there is a sufficient supply of oxygen to the cancerous mass in certain areas of the body. And if there is a high intake of FA in the diet, then it's very plausible that this pathway could be abused by cancer.

#1289384Post 26 of 26

Re: WTF is up with cancer

look at the big brains in this thread! whoa! :shock:

Log in to reply