Blood Cancer Flashcards
(46 cards)
WHAT IS BLOOD CANCER?
- Cancer arising from cells responsible for blood formation or immune function
- Commonly occurs in your bone marrow where stem cells are located and mature
- In the bone marrow, normal cell production is interrupted and abnormal cells begin to grow
WHAT IS BONE MARROW?
- Bones are made up of 3 main parts:
β Compact bone
β Spongy bone
β Bone marrow - Red marrow
- Yellow marrow
UNDERSTANDING BLOOD CELL FORMATION
UNDERSTANDING BLOOD CELL FORMATION 2
LEUKEMIA BASICS
- Four main types
β Acute Lymphoblastic (Lymphocytic) Leukemia (ALL)
β Acute Myeloid (Myelogenous) Leukemia (AML)
β Chronic Lymphocytic Leukemia (CLL)
β Chronic Myeloid Leukemia (CML) - All begin in the bone marrow
β Myeloid stem cell line
β Lymphoid stem cell line - ALL and AML are made of immature blasts
- CLL and CML have few to no blasts
- Each major type has its own subtypes
- acute leukemias are more aggressive and need timely treatment
- chronic leukemias are slower growing and might not need treatment
MYELODYSPLASTIC SYNDROMES (MDS)
- Sometimes called βpre-leukemiaβ; affects myeloid cell line, where 5-19% blasts are present
- Bone marrow doesnβt make enough healthy blood cells
MYELODYSPLASTIC SYNDROMES (MDS)
Risk factors
- Male gender, white
- Older age (60+, typically)
- No risks known for de novo (Latin for βfrom the beginningβ) MDS
- Secondary MDS may be due to previous cancer treatment
- can progress to AML
MYELODYSPLASTIC SYNDROMES (MDS)
Symptoms
- Possible to have none
- Cytopenias (anemia, neutropenia, thrombocytopenia)
LYMPHOMA BASICS
Hodgkin Lymphoma (HL)
Abnormal lymphocytes accumulate and form masses (tumors) in the lymphatic system
- Classical Hodgkin Lymphoma (95%)
- Nodular Lymphocyte Predominant Hodgkin Lymphoma (5%)
-
- was initially named Hodgkins disease, this was later changed to Hodgkin lymphoma
- Is a B cell lymphoma
- Distinguished from other lymphoma by the presence of the Reed-Sternberg cell
- Hodgkin lymphoma is most likely to be diagnosed in young adults, but then becomes more common again after age 65
- most forms are curable
LYMPHOMA BASICS
Non-Hodgkin Lymphoma (NHL)
- B-cell lymphomas ~85% of all NHLs
- T-cell and NK-cell lymphomas ~15% of all NHLs
- 70β90 subtypes
- graded on behavior: Aggressive or indolent, sometimes intermediate
- Stage I βIV
LYMPHOMA STAGING
Often time a letter follows the stage number
- ex. Stage 3b, stage 2a
- A: no symptoms present
- B: unexplained fevers, Drenching night sweats, unexplained weight loss of 10% or more in last 6 months,
- E: involvement of organs or tissues beyond the lymph system
MYELOMA BASICS
- Cancer of the plasma cells (product of B lymphocytes)
- Can be a single tumor β βplasmacytoma,β asymptomatic and slow growing β βsmoldering,β or
- diffuse throughout the body β βmultiple myelomaβ
- CRAB criteria are important to the diagnosis:
β Calcium is increased
β Renal (kidney) failure or insufficiency
β Anemia
β Bone lesions
MYELOPROLIFERATIVE NEOPLASMS (MPNS)
- Myelo β of the bone marrow
- Proliferative β to grow or reproduce quickly
- Neoplasm β abnormal growth of cells
- Many subtypes, but three are considered βclassicβ:
β Polycythemia vera (PV) β too many red blood cells are made
β Essential Thrombocythemia (ET) β too many platelets are made
β Myelofibrosis (MF) β scarring of the bone marrow after it has βexhaustedβ itself or as a primary disease
CANCER MOLECULAR PROFILING
- ## Identifies DNA, RNA, or protein molecules associated with certain diseases
- Examples of types of tests:
β Immunohistochemistry/Flow cytometry - antibodies/antigens
β FISH - Fluorescence in situ Hybridization
β NGS - Next-Generation Sequencing
β qPCR - Quantitative Polymerase Chain Reaction
HOW IS BLOOD CANCER TREATED?
- Cellular Therapy
- Clinical Trial
- Palliative Care
- Chemotherapy
- Radiation Therapy
- Targeted Therapy
- Immunotherapy
HOW IS BLOOD CANCER TREATED? 2
- Treatment varies greatly based on key factors:
β What type of blood cancer
β Leukemia vs. Lymphoma
β Acute vs. Chronic
β Myeloid vs. Lymphoid - Molecular/genetic changes?
β BCR/ABL mutation (Philadelphia chromosome) CML, ALL
β FLT3, IDH1/2 - Comorbidities of patient
β Heart, kidney, liver function OK to withstand chemotherapy
CHEMOTHERAPY
- Stops the growth of dividing cells
- Used in combinations to make other treatments more effective
- Can be used with surgery or radiation
- Can be given by many different routes
β PO, IV, IM, IT, IP
CHEMOTHERAPY SIDE EFFECTS
- Fatigue
- Alopecia
- Neuropathy/Confusion
- Mouth sores
- Nausea/Diarrhea
- Cytopenias - Neutropenia, Anemia, Thrombocytopenia
β Infection
β Bleeding - Skin and nail changes
- Mood changes
- Infertility and changes in libido
RADIATION THERAPY
- Works by damaging DNA of cancer cells so that they cannot replicate
- Types
β Internal: put inside the target, ie: brachytherapy
β External: comes from a machine, targets certain area of your body - Used in combination with chemotherapy and surgery
RADIATION THERAPY SIDE EFFECTS
- Fatigue
- Localized skin changes
- Specific side effects related to the area being treated:
β Lung: fatigue, SOB, cough
β Brain: fatigue, hair loss, nausea/vomiting
β GI: nausea/vomiting, diarrhea, abdominal pain, bladder, fertility
β Head/neck: sore throat, dry mouth, taste alteration, hair loss
TARGETED THERAPY
- Specifically targets the changes found in cancer cellsβ DNA which makes it become cancerous
- Types:
β Monoclonal antibodies
β Cancer growth inhibitors:
β- Tyrosine kinase inhibitors: dasatinib, imatinib, nilotinib
β- Proteasome inhibitors: bortezomib
β- PI3K inhibitors: idelalisib
β- HDAC inhibitors: panobinostat, vorinostat
β- mTOR inhibitors: sirolimus, everolimus
β- Hedgehog pathway inhibitors: glasdegib
TARGETED THERAPY SIDE EFFECTS
- Diarrhea
- Liver abnormalities- increased LFTs, hepatitis
- Skin and nail changes
- High blood pressure
- Alterations in blood clotting
IMMUNOTHERAPY
- Harnesses your immune system to fight the cancer
- Types:
β Monoclonal or Bispecific antibodies
β- Rituximab, Obinutuzumab
β- Blinatumomab - Checkpoint inhibitors
β Nivolumab, pembrolizumab - Vaccines
β Antigen, whole cell, dendritic cell - Cytokines
β Interferon and interleukin
IMMUNOTHERAPY SIDE EFFECTS
- Fever/chills
- Weakness/fatigue
- Blood pressure abnormalities
- Shortness of breath
- Nausea/vomiting
- Swelling/fluid retention
- Organ inflammation
β Colitis
β Hepatitis
β Pneumonitis