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A 55-year-old female is diagnosed with a type of cancer known for high rates of p53 mutations.  What is the role of p53 in normal cells, and how does its mutation contribute to cancer? 

A patient with recurrent bacterial infections is found to have a deficiency in complement protein C3. What is the consequence of this deficiency? 

A patient with acute inflammation shows increased fluid accumulation at the site of injury. What causes this increased fluid accumulation? 

Which cells release cytokines that stimulate further chemotaxis and promote bone marrow leukocyte proliferation? 

What is the role of T-helper cells in the activation of B cells? 

During an immune response, where do antigen-presenting cells (APCs) typically interact with T cells? 

A 30-year-old female with a deep vein thrombosis is started on anticoagulant therapy. The medication inhibits thrombin.  Which step in the clotting process is directly affected by this medication? 

Which immunoglobulin is the most abundant in the body? 

A 65-year-old female with osteoporosis is prescribed a medication that inhibits osteoclast activity.  What is the expected outcome of this treatment? 

A 50-year-old male with a history of hepatitis B infection is diagnosed with liver cancer.   How can hepatitis B virus contribute to cancer development?