Multiple Myeloma Causes, Signs, and Treatments

Multiple myeloma is an uncommon and rare cancer, typically diagnosed in adults. With any form of cancer, the cells in the body mutate and grow out of control. In myeloma, cancer specifically affects plasma cells in the bloodstream. These cells are a vital immune system component found in the bone marrow. Myeloma develops slowly and destroys plasma functioning, thus compromising immunity. Here is everything one must know about myeloma and its progression.
Major causes of multiple myeloma
Genetics is one of the main trigger factors linked to conditions like multiple myeloma. Research suggests that a mutation in the plasma cells triggers the rapid and uncontrolled multiplication of cells in the area. Mutations are known to activate oncogenes or deactivate suppressor genes, resulting in cancer development.
In addition to changes in the cell, missing chromosomes from the genetic code directly impact the progression of cancer. This includes missing chromosome 17 or the translocation of chromosomes where they switch characteristics. Any abnormalities in the bone marrow can also make the cancer progress faster and become more aggressive.
Other known risk factors
Advancing age
Multiple myeloma affects a very small group of young people as it is mainly diagnosed among older adults above the age of 65. The risk is always higher with advancing age.
Ethnicity
The risk of this cancer is also high among people of African American descent when compared to Caucasians in the general population.
Gender
In addition to ethnicity, the risk is higher for men, although women can also develop severe symptoms if a diagnosis is confirmed.
Signs and symptoms
Common symptoms of cancer tend to overlap with signs of many known existing health complications. These are the telltale signs of myeloma.
Bone pain
Bone pain in the back or behind the rib cage could indicate a serious bone marrow issue or underlying cancer development. The bones also become brittle and lose structural integrity, increasing the risk of fractures with the slightest impact. A heightened risk of bruising and bleeding under the skin also exists as the plasma cells are affected by the progression of myeloma.
Fatigue
Cancer greatly affects the body’s immune system. Compromised immunity cannot ward off any external attacks, thus triggering fatigue, lightheadedness, confusion, or dizziness. Low immunity also increases the risk of fever caused by bacterial or viral infections that tend to affect daily routine. As the fatigue sets in, one might also experience weakness and numbness in the arms and legs, which, in turn, will affect stability and balance as the skeletal structures get weak.
Nausea, vomiting, and shortness of breath
Hypercalcemia, a condition where calcium levels in the body drop below the required range, is another complication associated with multiple myeloma. It can further trigger nausea and vomiting as cancer begins to affect major organs and functions. Breathing may also get affected due to underlying fatigue and compromised immunity.
Changes in appetite
As cancer spreads, unexplained weight loss, an increased urge for thirst, and frequent urination are signs that need immediate attention.
In any case, immediate attention from a professional is advisable if the symptoms persist or progress rapidly, affecting daily routine. Swift diagnosis can ensure early and necessary care to improve the long-term outlook.
Diagnostic tests for multiple myeloma
Doctors suggest a combination of imaging and blood tests to confirm the presence of cancer, identify the stage, and evaluate any aggression of cancer cells based on organs affected in the vicinity.
Imaging tests
For most types of cancer, doctors suggest a combination of imaging tests to identify the spread or progression of the condition. These include Computed Tomography (CT) scans, Magnetic Resource Imaging (MRI) scans, and X-Rays to confirm the presence of cancerous cells in commonly known areas. Markers like more than 10% plasma cells in the bone marrow are the benchmark for confirming the presence of myeloma. These markers are cross-checked with high blood calcium levels, kidney function, low red blood cell count, and tumors with holes in the bones.
Blood and urine tests
The doctor will also recommend a series of blood and urine tests to confirm any abnormalities in cell functions. Common tests include complete blood count, blood chemistry tests, urine panel tests, quantitative immunoglobins tests, electrophoresis tests, serum-free light chains, and beta-2 macroglobulin tests. Additionally, doctors will suggest a bone marrow biopsy where a sample tissue is extracted for analysis in the lab. The tissue will highlight the presence of plasma cells that triggered the myeloma. Alternatively, a fine needle aspiration biopsy or core needle biopsy is done to collect more samples. These are usually taken from the tumor, lymph node, or bone marrow to help narrow down the stage or progression of myeloma.
Treatment options
A combination of therapies is suggested based on persona preference, the overall health of the patient, and outlook for the cancer diagnosis.
Prescriptions
The first suggested course of prescriptions can include proteasome inhibitors, corticosteroids, immunomodulatory agents, monoclonal antibodies, and histone deacetylase inhibitors.
FDA-approved therapies
Radiation therapy is where high-energy lasers are used to destroy the myeloma cells. In chemotherapy, cancer-fighting solutions are administered intravenously directly to stop cancer from spreading. Alternatively, in immunotherapy, the body’s immune system is programmed to identify and eliminate the cancerous cells. In targeted therapy, however, the focus is on blocking abnormalities by identifying their weaknesses. For cases where the myeloma has relapsed, doctors suggest CAR-T cell therapy. In this treatment, doctors extract a specific type of white blood cell and reprogram it by altering the genetic code in the laboratory to fight cancer. These cells are reintroduced into the bloodstream intravenously for maximum effect.
Note that treatment will vary depending on the severity of these symptoms and expected outcomes. At any given point, doctors may consider switching up therapies after considering the stage and progression of the cancer.