Question 1

how does cancer affect cells in the body?

Accepted Answer

Invade organs: As the cancer grows it produces a proteinase that allows for invasion of blood vessels. It breaks down -e-cadherin to s-ecadherin that allows metastasis.  The spread is predetermined by the surface protein on the tumor cell.  Once spead to an organ occurs it can grow in that organ and in many instances can destroy the organ function such as liver If TNFproduced cacchexia occurs.

Question 2

i've had a few papsmears done the first one didn't have enough cells the other two showed cancerous cells, does that mean i have cancer?

Accepted Answer

See your GYN now.: The doctor who did your pap will know the answer after he does more tests.

Question 3

if a cancer cell from outside gets into you and that cell has no mhc on it then how will the persons body recognise that its foreign and should be killed ?

Accepted Answer

: There has been no instance of cancer spread in the fashion you conjure up.
You can reduce your risk of cancer by adopting healthy habits: Eat a mostly vegetarian diet, avoid alcohol, tobacco and street drugs, avoid excessive exposure  to sun, get HPV vaccine, exercise 30 minutes each day, drink enough water so your urine is mostly colorless.

Question 4

what is small cell cancer?

Accepted Answer

Usually lung: This is a special kind of smoker's lung cancer that isn't curable but usually responds amazingly well for months to a few years to simple classical chemotherapy. The term "oat cell" describes its classic look. Small-cell cancers can pop up in other organs and often act similarly.

Question 5

can small cell cancer recur?

Accepted Answer

Yes: Short answer: yes.
Small cell lung cancer is staged as either limited stage (fits within a radiation field for treatment) or extensive stage. It tends to respond well to treatment, but recur.

Question 6

how can some cells become cancer?

Accepted Answer

Damage to DNA: Every cell has the necessary instructions & plans in it's dna. Cells use this blueprint to carry out all important functions including when to divide & keep growing to when to stop & die. When the dna within the cell gets damaged by the environment (smoking, uv rays, radiation, chemicals etc..) & our cells are not well equipped to repair the damage this leads to errors in the plans causing cancer.

Question 7

how is cancer related to cell division?

Accepted Answer

Mutation in p53: normal cells that divide have control over a mutation that arises.  If so, the division is slowed by p53 so that mutations in DNA are repaired and not passed to next generation.  In cancer the mutation in the p53 oncogene does not function to slow cell division for repair and the mutation is passed to next generation of cells.

Question 8

how does cancer develop? in cells or what?

Accepted Answer

Multiple steps: Cancer is multi-step process of accumulating defects in the genome of the cells exposed to various insults, including inherited damage.  The changes often start by facilitating the growth of cells and additional damage to the cells accrues that enables them to grow unchecked, acquire the ability to invade and metastasize.  A human cancer has about 90 genetic defects.

Question 9

which part of the cell does cancer affect?

Accepted Answer

DNA: Cancer results from mutations or defects in a cells dna.  This in turn can effect multiple parts of the cell but predominately causes problems because the cell does not know when to stop replicating (multiplying).

Question 10

could different cancers have different cells?

Accepted Answer

Absolutely: Cancer cells are different in their microscopic appearance, behavior, and genetic characteristics, not only between different cancers but sometimes within the same cancer. That is one main challenges of cancer therapy, one therapy does not always kill all the cells due to their heterogeneous nature.

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Doctor answers about:

How does cancer affect cells

A member asked:

How does cancer affect cells in the body?

A member asked:

I've had a few papsmears done the first one didn't have enough cells the other two showed cancerous cells, does that mean i have cancer?

A member asked:

If a cancer cell from outside gets into you and that cell has no mhc on it then how will the persons body recognise that its foreign and should be killed ?

A member asked:

What is small cell cancer?

A member asked:

Can small cell cancer recur?

A member asked:

How can some cells become cancer?

A member asked:

How is cancer related to cell division?

A member asked:

How does cancer develop? in cells or what?

A member asked:

Which part of the cell does cancer affect?

A member asked:

Could different cancers have different cells?

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