Survival

[MRC_Hans]

Sorry don't take it otherway. I respect & care all. But just language difference. Therefore I prefer to quote instead to write.

I don't buy that. The answers were very simple and easy to understand. If your command of Englich is that bad, I suggest you stop attempting to communicate in that language, at least til you learn it better.

Thanks. They are quite sacrificing & generous to their daughter cells.

No! You are applying human emotions and motives. They are not sentient, they are, essentially, machines.

Hans

 

[MRC_Hans]

Didn't cancer cells got communications from body before they became cancerous? Don't they get & follow any body signals on becoming cancerous?

That depends on the type of cancer. Cancer is many different things, but generally, that is correct: Cancer cells are more or less shut off from the normal regulatory mechanisms that exist in the body. In fact, that is their malfunction.

Hans

 

[kerikiwi]

Do you mean that neither virus nor cancer cells have consiousness/mind?

Yes.
And your english seems to have suddenly improved.

 

[Kumar]

They don't *want* to replicate. They dont want anything. They are cells, and cells are not sentient in any way.
Multicellular organisms exist because they have mechanisms in control to prevent the cells from acting like single celled organisms allowing for cooperation. But these mechanisms are not perfect and can break down. At which point the cells start replicating without restraint and eventually kill the organism they were a part of.

Thanks. When such mechanism break down, do cancer cell become like single celled organisms? As such, should they not have sentient to live & go further?

Pathogens are different, they use their host organisms as both food source and transmission agent. The most succesful ones don't actually kill their host (normal flu for instance), but even the ones that kill are succesful enough to continue existing, so they are doing something right.

What right they are doing in killing the host?

 

[MRC_Hans]

As I asked, does it mean that they don't communicate with body & nature in any way?

Normal cells? No, they communicate with the body and their surroundings, that os part of their program.

Cancer cells? There is some communication left, but generally their program is into what we call an endless loop. A loop that basically says:

{
  :START
  Reproduce(UNCONDITIONALLY);
  GOTO START;
}

Hans

 

[MRC_Hans]

Yes.
And your english seems to have suddenly improved.

Kumars english skills have always been very context dependent.

Hans

 

[Kumar]

Stronger, the presence of antigens makes them stronger in the long run. Antigens also make transmission necessary.

Means, either strong host(with good defence response) or weak host( on defficiency of nutrients) make transmiission necessary for their survival?

 

[MRC_Hans]

Thanks. When such mechanism break down, do cancer cell become like single celled organisms? As such, should they not have sentient to live & go further?

No, and no. They are not single-celled organisms, they are malfuctioning body cells.

Single celled organisms are also not sentient. They are essentially machines.

What right they are doing in killing the host?

Usually, deadly infections succeed because they reproduce fast and are able to spread quickly, but some are out of bounds. Take Tethanus, for example:

It is caused by bacteria that live normally in dirt. When they get indo a living body, they suddenly find themselves at a big, apparantly endless dinner table, and they simply gorge themselves and reproduce like crazy. This makes the host very sick and is usually fatal, but not contagious, so those organisms went into a dead end and are doomed.

Hans

 

[MRC_Hans]

Means, either strong host(with good defence response) or weak host( on defficiency of nutrients) make transmiission necessary for their survival?

Kumar, it is not so mysterious. It is really just like other life-forms: They feed, reproduce, and when the food runs out, they move on.

Hans

 

[Kumar]

Mad I suppose.

More like a car with a brick on the gas pedal, cancer being the brick causing the car to speed out of control.




I seem to recall pathogens that can kill the host then multiply in the dead organism before becoming airborn. Or maybe it was a Sunday afternoon movie...

Thanks. Do they expect that dead body will remain for long esp. of human? Obiously it should be happening by living in nature.

I think there are specific pathogens that produce antigens in the host which make them immune to a variety of other pathogens. That's a benefit in some cases.

Will they then be called as friendly pathogens or enemies? Pathogens should be enemical ones.

 

[Mojo]

Do you mean that neither virus nor cancer cells have consiousness/mind?

Indeed. Your attribution of madness and self-destructiveness to them is nothing more than projection.

 

[Mojo]

Will they then be called as friendly pathogens or enemies? Pathogens should be enemical ones.

Try looking up the definiton of "pathogen".

 

[Kumar]

IT HAS BEEN ANSWERED! Read the answers before you ask again, or you make a complete fool of yourself.

They are not mad, they are defective.



Hans

Never take me otherwise. I can be defective in language but not mad.

 

[Mojo]

Usually, deadly infections succeed because they reproduce fast and are able to spread quickly, but some are out of bounds. Take Tethanus, for example:

It is caused by bacteria that live normally in dirt. When they get indo a living body, they suddenly find themselves at a big, apparantly endless dinner table, and they simply gorge themselves and reproduce like crazy. This makes the host very sick and is usually fatal, but not contagious, so those organisms went into a dead end and are doomed.

Actually, not quite. It is an obligate anaerobe, so a healthy body is not on the whole a hospitable place for it. That is why it generally is only able to infect tissues where the blood supply is somewhat compromised. A body that has ceased to breath, on the other hand...

 

[Kumar]

Cancer cells are neither parasitic nor symbiotic, they are US. They are a malfuctioning part of us.

Simply, our defective children?

'Pathogen' means 'disease giver' so no, they are not symbiotic, they are parasitic. However, we have plenty of symbiotic micro organisms. You have a pound or so of bacteria in your intestines, they help you digest your food, and you feed them in return.

Hans

Sorry, but as per the definition given by me, Parasitism is also a part of symbiosis.

 

[Kumar]

Of course they don't. You are making some basic errors of assumption about what viruses, bacteria, cancer cells etc are.

They don't think, or have any conscious intention. They just do what their DNA tells them to do...reproduce.

Do they behave according to the environment arround them in our body?

 

[Naddig74]

Simply, our defective children?.

No.

Sorry, but as per the definition given by me, Parasitism is also a part of symbiosis.

And no. Parasites only take from the host for their own benefit. Symibiotes provide some benefit for the host in return.

 

[Naddig74]

Do they behave according to the environment arround them in our body?

No. If an environment is hostile, they die. If it isn't they reproduce.

 

[Kumar]

I don't buy that. The answers were very simple and easy to understand. If your command of Englich is that bad, I suggest you stop attempting to communicate in that language, at least til you learn it better.

No! You are applying human emotions and motives. They are not sentient, they are, essentially, machines.

Hans

Language should not be a barrier to knowledge.

Can't human emotions and motives change environment/signals to pathogens & cancer cells, which alter their behaviour accordingly?

 

[Kumar]

That depends on the type of cancer. Cancer is many different things, but generally, that is correct: Cancer cells are more or less shut off from the normal regulatory mechanisms that exist in the body. In fact, that is their malfunction.

Hans

As I asked in my last post, whether cancer cells are also shut off from changes in surrounding environment to them?