Scientists Search Deep Sea Reefs for Wonder Drugs

ScienceDaily is reporting that a team of scientists will be venturing some 2000-3000 feet below the ocean surface in order to explore deep-sea reefs discovered last December. From the article: "A primary goal of the upcoming expedition, which is funded largely by the State of Florida's 'Florida Oceans Initiative,' will be to search for marine organisms that produce chemical compounds with the potential to treat human diseases such as cancer and Alzheimer's."

Comments

Cancer

[PrivateDonut]

Sorry, but cancer isn't a disease... its a mutation. You can't cure mutations, only give your body the ability to remove the mutated cells.

Re:Cancer

[Whiney Mac Fanboy]

but cancer isn't a disease... its a mutation.

Are you sure? Disease:

1. A pathological condition of a part, organ, or system of an organism resulting from various causes, such as infection, genetic defect, or environmental stress, and characterized by an identifiable group of signs or symptoms.

2. A condition or tendency, as of society, regarded as abnormal and harmful.

This is pretty common, actually

[Dr.Enormous]

If you read biology journals, you'll see that just about every third or fourth paper consists of "we pureed some sea sponge in a blender and extracted this compound. And look, it kills cancer cells (*cough* and non-cancerous cells too *cough*)!" The only thing different here is a somewhat deeper venue for collection. (this isn't to say that it's not important scientific work, just that it's rather commonplace and rarely leads to much of anything)

Reef Etiquette

[schweinhund]

For those who are not familiar with coral reefs and may go for a casual snorkel or swim sometime, please do not physically touch the coral itself as this kills it. Because of this, federal law requires swimmers to wear flotation jackets when nearby to avoid contact.

It takes 30,000 years to grow 1 cubic inch of coral, and the mistreatment of the reefs around Florida (1960s dynamite fishing, jewelry harvesting, etc.) has made it so that the reef off of the Florida Keys is the last living coral reef in the region.

Re:Reef Etiquette

[gmiley]

Just a quick google search found:

Ariel Roth of the Geoscience Research Institute has commented on the fact that estimates of net reef growth rates vary from 0.8 millimetres per year to 80 millimetres per year, whereas actual measurements based on soundings at depth are many times these estimates.3 Roth suggests a number of reasons for this difference.

source And from Wikipedia:

Formation of the calciferous exoskeleton involves deposition of calcium carbonate by the polyps from calcium ions isolated from seawater. The rate of deposition, while varying greatly between species and environmental conditions, can be as much as 10 g / m2 of polyp / day (0.3 ounce / sq yd / day). This is however hugely dependent on light, with production reduced by 90% at night compared to the middle of the day[6].

source

Re:Curse of the Blue Gold

[fain0v]

Even if you could sythesize anything that nature can make, there isnt enough matter in the universe to make every small molecule that might be of interest to medicinal chemists. So how do you screen out the useless molecules and find ones that might have an effect on a druggable target? You use millions of years of evolution to your advantage and isolate compounds made by organisms. These "natural products" can be used to do high-throughput screening on your drug target.

Here is a lab that does this.
http://www.umich.edu/~lsi/institute/labs/sherman/s ponge.html

Human Papilloma Virus

[TerranFury]

Actually, you'd be surprised. Nothing gets into your cells and screws up your DNA like a virus.

Have you heard of HPV (Human Papilloma Virus)? It's a very-common (family) of sexually-transmitted viruses. We've known for a long time that certain types of HPV are the cause of cervical and ovarian cancer in women and testicular cancer in men (e.g.: these cancers are STDs), and more recent research has shown that HPV is also linked to certain forms of skin cancer.

In other words: Yes, cancer can be and often is caused by infectious diseases!

Re:Curse of the Blue Gold

[archeopterix]

Any chemical that can be synthesized biologically should be perfectly capable of being synthesized in-vitro.

Synthesized in-vitro? Perhaps.

Synthesized in-vitro on a commercial scale? Look at Taxol. It took over 20 years to design a commercially viable synthesis method.

Galanthamine? To my knowledge, no commercially viable method exists.

Notice to all sea sponges: Don't panic

[paiute]

Although it may seem that if a promising drug is found in a deep sea organism, the rapacious drug companies will get all Constant Gardener on them and start the dredging, that is not how it goes. If a compound is isolated from a sponge that had some desirable bioactivity in humans, that compound is isolated and its stucture is determined. Now the reason this compound has some activity in humans - a species the sponge has had no evolutionary contact with - is most usually due to the way some corner of the chemical sticks into a receptor or enzyme in the mammalian cell. This corner, by no means the whole thing, is called a pharmaphore - the actual working part of the molecule. The rest of the compound is unnecessary. The drug company doesn't need to waste money making that part, or squeezing out gallons of sponge juice. They set their hundreds of medicinal chemists to work preparing a simpler, easier to manufacure, compound that contains the necessary pharmaphore.

Re:Curse of the Blue Gold

[AndersOSU]

If you're going to rip-off an article the least you can do is provide a link to it.
http://magic-city-news.com/article_5888.shtml

All this in light of yesterdays article about plagerism .