What is blood cancer,causes and treatment
All blood cells come from blood stem cells.
Blood cells develop through a process called
haematopoiesis. This involves bone marrow
and part of the lymphatic system.
Bone marrow contains unspecialised cells known as haematopoietic stem cells. As they divide and mature, they become more specialised and develop into one of the three types of blood cell, each with a specific function.
- Red blood cells :
- Platelets :
- White blood cells :
Red blood cells carry oxygen all over the body.
Platelets help form blood clots to slow or stop bleeding.
White blood cells help fight infection. When blood cells become old or damaged, they die, and the blood stem cells produce new blood cells to take their place.
All blood cells are produced by blood stem cells. A blood stem cell can produce myeloid stem cells and lymphoid stem cells:
What is Myeloid cells:
A myeloid stem cell can produce red blood cells and platelets. Or, it can produce myeloblasts. (A blast is a type of immature cell.) Myeloblasts can produce several types of white blood cells known as granulocytes.
What is Lymphoid cells:
A lymphoid stem cell can produce lymphoblasts, which can produce several types of white blood cells that are different from granulocytes
What is blood Cancer(Leukemia) ?
The production of blood cells is normally tightly controlled by the regulation of genes and their protein products. This control can go haywire, often with no identifiable reason. Sometimes when this happens, a blood cancer can develop. The type of blood cancer you have depends on the stage the cell had reached when the controls in the development process go wrong. The blood cancers that most commonly affect young people are:
- Hodgkin lymphoma (HL)
- Non-Hodgkin lymphoma (NHL)
- Acute lymphoblastic leukaemia (ALL)
- Acute myeloid leukaemia (AML)
- Chronic myeloid leukaemia (CML)
What is Leukemia Cells ?
In leukemia patient, the bone marrow produces abnormal white blood cells that are called leukemia cells and leukemic blast cells. The abnormal cells can’t produce normal white blood cells.Leukemia cells divide to produce copies of themselves. The copies divide again and again, producing more and more leukemia cells. Unlike normal blood cells, leukemia cells don’t die when they become old or damaged. Because they don’t die, leukemia cells can build up and crowd out normal blood cells. The low level of normal blood cells can make it harder for the body to get oxygen to the tissues, control bleeding,or fight infections. Also, leukemia cells can spread to other organs, such as the lymph nodes, spleen, and brain.Types of Cancer(Leukemia),cause and treatment