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USMLE - Chapter 2 - Immunology

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  1. Primary Lymphoid Organs to Lymph Node Structural Diagram
    7Topics
  2. Introduction to Lymphatic Drainage to Lymph Node Palpability and Right Lymphatic Duct
    6Topics
  3. Spleen Structure Overview to Thymus-Related Conditions
    6Topics
  4. Components and Mechanism of Immunity to Understanding Immune Privilege
    4Topics
  5. MHC I and II: Introduction and Loci to DQ8, DR3, DR4
    9Topics
  6. Functions of Natural Killer Cells to Major Functions of T Cells
    3Topics
  7. T Cell Development: Bone Marrow & Thymus to Regulatory T Cells and Autoimmunity
    6Topics
  8. T-cell Activation: Antigen Presentation to B-cell Activation: Co-stimulation, Class Switching, and Maturation
    4Topics
  9. Antibody Structure and Function to Antibody Diversity and Specificity
    4Topics
  10. Introduction to Immunoglobulin Isotypes to Thymus-Dependent Antigens
    7Topics
  11. Introduction to Complement System to Convergence and MAC Formation
    9Topics
  12. Early Complement Deficiencies to PNH: Hemolysis & Thrombosis
    4Topics
  13. Interleukin-1: Macrophage Secretion and Acute Response to IL-10 and IL-13: Immune Regulation and IgE Production
    7Topics
  14. Respiratory Burst Introduction to Interferons Clinical Use & Side Effects
    5Topics
  15. T Cell Surface Proteins to Examples of Passive and Active Immunity
    4Topics
  16. Live Attenuated Vaccines: Description to mRNA Vaccine
    8Topics
  17. Overview of Hypersensitivity Types to Type II: Cellular Dysfunction & Clinical Examples
    6Topics
  18. Type III Hypersensitivity: Mechanism & Examples to Type IV Hypersensitivity: Examples & Tests
    5Topics
  19. Allergic and Anaphylactic Transfusion Reactions to Delayed Hemolytic Transfusion Reaction
    5Topics
  20. Autoantibodies in Neuromuscular and Systemic Diseases to Autoantibodies in Metabolic, Hematologic, and Renal Disorders
    5Topics
  21. Bruton's Agammaglobulinemia to Chronic Mucocutaneous Candidiasis
    7Topics
  22. Severe Combined Immunodeficiency (SCID) to Chronic Granulomatous Disease
    7Topics
  23. Intro to Immunodeficiency & T-Cell Bacterial Infections to Parasitic Infections & Key Deficiency Note
    5Topics
  24. Hyperacute Transplant Rejection to Histology of Transplant Rejection
    5Topics
  25. Immunosuppressants: Definition and Risks to Sirolimus & Basiliximab: Clinical Aspects
    5Topics
  26. Azathioprine to Immunotherapy: Interleukin-2 and Interferons
    6Topics
  27. TNF-α Inhibitors: Adalimumab & Infliximab to Omalizumab & Palivizumab: Allergic & Viral
    7Topics
Lesson 27 of27
In Progress

TNF-α Inhibitors: Adalimumab & Infliximab to Omalizumab & Palivizumab: Allergic & Viral

Content August 26, 2025

Therapeutic antibodies

Autoimmune disease therapy

AGENT TARGET CLINICAL USE NOTES
Adalimumab, infliximab Soluble TNF-α IBD, rheumatoid arthritis, ankylosing spondylitis, psoriasis Pretreatment screening (CMV, EBV, HBV, HCV, TB, VZV) due to risk of reactivation.

Eculizumab Complement protein C5 Paroxysmal nocturnal hemoglobinuria Associated with ↑ risk of meningococcal infection

Guselkumab IL-23 Psoriasis
Ixekizumab, secukinumab IL-17A Psoriasis, psoriatic arthritis

Natalizumab α4-integrin Multiple sclerosis, Crohn disease α4-integrin: WBC adhesion. Risk of PML in patients with JC virus.

Ustekinumab IL-12/IL-23 Psoriasis, psoriatic arthritis
Vedolizumab α4-integrin IBD Gut-specific anti-integrin, preventing migration of leukocytes to the gastrointestinal tract

Other applications

Denosumab RANKL Osteoporosis; inhibits osteoclast maturation (mimics osteoprotegerin) Denosumab helps make dense bones
Emicizumab Factor IXa and X Hemophilia A Bispecific; mimics factor VIII

Omalizumab IgE Refractory allergic asthma, prevents IgE binding to FcεRI
Palivizumab RSV F protein RSV prophylaxis for high-risk infants Palivizumab—virus

Topics Covered:

  • TNF-α Inhibitors: Adalimumab & Infliximab
  • Eculizumab: Complement Inhibitor
  • IL-23 and IL-17A Inhibitors
  • Natalizumab: α4-integrin Blocker
  • Ustekinumab & Vedolizumab
  • Denosumab & Emicizumab: Other Uses
  • Omalizumab & Palivizumab: Allergic & Viral