Stem cells vs specialised cells

[Guest guest]

Hi YC, & All,

 

I wrote:

> ..., all ORGANS develop from one original cell (fertilised ovum). It

> can be postulated that ALL cells (like stem cells) have the blueprint /

> potential (albeit a latent blueprint / potential) to carry out ANY or

> ALL basic metabolic functions. ---

 

YC replied:

> Hmm. The difference between a stem cell and other cells is that one

> possesses the potential and the other is already potentiated. I'm I

> understanding this correctly?

 

Yes. The more primitive (undifferentiated) a cell is, the easier it is to

" persuade it " to adopt specialised functions.

 

Typically, embryonic or foetal cells are used in stem-cell research and some

trials suggest that stem cells from adult donors may not be as effective as

those from embryos or very young donors.

 

My point was that EACH living cell (even an old, highly specialised cell) has

the COMPLETE blueprint for all bodily functions.

 

As an analogy, I see the " Life Functions Database " of the cell as a huge

database of individual programmes in thousands of " folders and files " within

EACH cell. In practice, most of the programmes are switched off; only those

needed for that cell's USUAL functions are in operation.

 

For example, kidney cells run the " programmes " needed for KI functions and

those needed for other functions / processes (like HT, brain, digestive

functions, etc ) are " switched off " , or quarantined.

 

In a crisis, by switching on their KI-Function Programs, the body may be able

to " recruit help " from NON-KIDNEY cells to allow them to perform functions /

PROCESSES normally done by KI.

 

Of course, this is just speculation, based on Are's hypothesis..

 

Best regards,

 

[Guest guest]

Phil,

All cells are or were creating from our DNA. They

are all alike, in physical and body structures I

believe.

As men and women are alike, no matter where they

are, in the ocean, in mars, in the rivers, in the

moon, in desert, villages or in mountains..... But in

different places create them different professions,

jobs, works, activities. Their lives and life spans

are also varied.

If men are put in severe battles, do they last long?

If they were put to work in strong and harmful

environment, will they last long? Same as in our

cells.

Cells are all alike, but they are in certain places

such as skin, hair, nail, eye, nose, limbs, trunks,

organs , tissues............... Their life spans must

be limited and they are to be replaced for maintaining

their environment.

To me they are no different. But if you look at

Vietnamese, Chinese, American and claim that they are

all different, you are right....... But you are wrong

for they are all men. Their lives are different, not

because they are American, but their environments.

If a very young, strong and very healthy American

is constantly put on war, in all fierce wars I think

he will not survive longer than a 70 years old African

man with easy life and good foods and care.

ENVIRONMENT MAKES US DIFFERENCE, BUT WE ARE THE

SAME.

 

Nam Nguyen.