Patient discussion about cell
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Q. How are cancer cells similar to normal cells, and how are they different?
I know that a similarity would be cells regenerate, and a difference would be cancer cells grow uncontrollably. Is there anything else?
|A1||I learned a lot of new things from the answers. Thanks.|
|A2||Well, normal cells found in our bodies are constantly dividing to provide replacement for the ones that are also constantly dying (apoptosis) in our bodies. These are all normal procedures.|
Cancerous cells also divide continuously, the difference is that they don't die (apoptosis) and just continue to grow. Thus, they are abnormal in that they are not programmed to die. This is when the masses of cells form.
Sometimes cancerous cells can invade your lymphatic system or blood system and this is how they travel to different parts of your body. This is known as metastasis. Metastatic cancerous cells are malignant in that they are not self-limiting and can spread throughout the body.
|A3||There are 6 hallmarks of a cancer cell:|
1 - They are able to produce molecules that promote their own growth
2 - They are resistant to molecules from other cells that would limit their growth
3- They are able to avoid apoptosis (normal cell death)
4 - They are able to replicate endlessly
5- They are able to promote the generation of new blood vessels to supply them with nutrients
6 - They are able to metastasize (migrate) to other regions of the body
Q. what is difference between normal cell and a cell infected with cancer?
|A||Malignant cells (cancerous cells, which is the correct term, since cancer isn't transmitted from cell to cell like microbes), are immortalized cells: the life span of each cell in our body is tightly regulated according to the body's needs, so cells don't multiply endlessly and eventually undergo programmed death (called apoptosis). Cancerous cells succeed to overcome this regulation, and therefore become immortalized: either excessive multiplication or avoidance of death.|
You may read more here:
Q. What tests can the doctors do to see if I have cancer cells still in me?
Am using my friend user name. I had a mastectomy in October of the 3cms lump. They also removed lymph nodes from armpit. They found that 2 nodes were slightly infected and 2 blood vessels leading away were the same. My oncologist says I should start chemo for 5 months followed by 5 wks of radiotherapy. I am awaiting the results from bone, heart, lungs and blood tests. What tests can the doctors do to see if I have cancer cells still in me?
|A1||You need to have your own self examination, which you can get guidance from doctor and all the tests which you already had and the tests which you are awaiting. Like you may have clinical examination, mammograms- which you already had, breast biopsy, ultrasonography, post biopsy pathology test, HER-2 gene test to find the speed of your tumor growth. Tests to check cancer spread – like lymph, bone, liver and lungs whose results you are waiting for.|
|A2||today there's little to do in order to find cells. but there are treatments that are able (in breast cancer) to locate and help chemotherapy destroy it. but it sometimes ineffective. it's called Herceptin- an antibody which targets a certain protein on breast cancer cells. the problem is that advanced cancer can reduce the amount of the protein getting the drug ineffective.|
Q. what is a normal red blood cell count for breast cancer after operation
|A||i know that the normal count is between 4.2 to 5.9 million cells/cmm. if you have anything else- i think this question should be to the Doctor...cause even if someone here will tell you it's ok that it's a bit low- the Doctor should know that and he has your chart with all your medical information. there for i would give him a phone call to ask if it's o.k. - unless you are in the normal average i told you, then you shouldn't worry about it.|
Q. can i get a short explanation about white blood cells and their job? what does it mean if i have a insafition
|A||White blood cells (WBC's) are the ones responsible for the immune system in the body. The white blood cell count rises in cases of infection, steroid use and other conditions. A low white blood cell count can have many causes, which need to be further evaluated by a doctor.|
Q. is there such thing bone cancer? if so what does it cause? i am asking because bone isn't a cell platform
and cancer is cells that are multiplying by the dozen !!! is so also in bone , if there is such thing ...
|A1||hmmm...here is the picture again:|
|A2||bone tissue does have a cellular matrix. even though most of it is a calcified material- it is a living tissue. here is a bone segment under a microscope picture that will show you the Osteocyte (the bone cell) :|
and there is bone cancer. very rare but existent:
Q. what is the most accurate pathological test to identify the primary source of a cystic mass in the neck?
the mass was removed. Pathologist was unable to identify the source and diagnosed the mass as a branchilogic carcinmoa (which is extremely rare, if exists at all). Therefore, I am looking for the most updated test and examinations that can be applied to blocks of the mass and determine their origin (primary source)
|A||Pathologic examinaions under a microscope are the most accurate ones there are, and sometimes even they don't help to identify the cell types. I do not have any other ideas on other tests you can do, and I believe you should follow the treatment your doctors will advise you based on this diagnosis they have made.|
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