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Questions and Answers

Which type of hypersensitivity is associated with vasodilation and smooth muscle constriction?

  • Type III
  • Type IV
  • Type II
  • Type I (correct)
  • What is the long-term treatment approach for immediate hypersensitivity (Type I) allergies?

  • Desensitization with small, increasing doses of allergen (correct)
  • Chemotherapy
  • Antibiotic therapy
  • Surgical intervention
  • Which type of hypersensitivity results in maximal response/reaction in 24-48 hours, with symptoms such as erythema, edema, and blistering?

  • Type III
  • Type II
  • Type IV (correct)
  • Type I
  • In autoimmunity, what does the immune system attack?

    <p>Self-antigens</p> Signup and view all the answers

    Which antibiotic inhibits DNA gyrase, preventing DNA packaging and unpacking in bacteria?

    <p>Quinolones</p> Signup and view all the answers

    What is the mechanism of action of Rifamycin?

    <p>Inhibits RNA polymerase</p> Signup and view all the answers

    Which antiviral drug blocks reverse transcription that converts viral RNA genomes to DNA in retroviruses?

    <p>Nucleoside RTIs</p> Signup and view all the answers

    Which drug inhibits synthesis of microtubules and is used to treat helminth infections?

    <p>Mebendazole</p> Signup and view all the answers

    What is the primary target of Daptomycin, an antibiotic?

    <p>Cytoplasmic membrane of bacteria</p> Signup and view all the answers

    What is the mechanism of action of Sulfonamides (sulfa drugs)?

    <p>Mimics PABA required to produce folic acid</p> Signup and view all the answers

    Which drug inhibits viral protease required for viral protein processing?

    <p>Amprenavir</p> Signup and view all the answers

    Which antibiotic inhibits the 50S subunit of prokaryotic ribosomes?

    <p>Macrolides</p> Signup and view all the answers

    What is the primary target of Polymyxins, a membrane disruptor antibiotic?

    <p>Outer membrane and cytoplasmic membrane of bacteria</p> Signup and view all the answers

    Which class of drugs inhibits the synthesis of folic acid, an essential component in nucleic acid synthesis?

    <p>Sulfonamides</p> Signup and view all the answers

    Which antibiotic inhibits the synthesis of fatty acids in bacteria?

    <p>Platensimycin</p> Signup and view all the answers

    Which drug blocks hemoglobin metabolism in species of Plasmodium which cause malaria?

    <p>Quinine and derivatives</p> Signup and view all the answers

    What has the most supporting evidence as a cause of autoimmune disorders?

    <p>Genetic factors</p> Signup and view all the answers

    Who is significantly more likely to develop autoimmune disorders?

    <p>Women</p> Signup and view all the answers

    Which type of autoimmune disorders present specific challenges for treatment?

    <p>Cell-mediated autoimmune disorders</p> Signup and view all the answers

    What is the main challenge of general immunosuppression as a treatment for multi-organ/site autoimmune disorders?

    <p>It leaves patients vulnerable to infections</p> Signup and view all the answers

    Which type of antibodies are emerging as attractive options for autoimmune disorder treatment?

    <p>Monoclonal antibodies</p> Signup and view all the answers

    Which bacteria can cause superantigen shock?

    <p>Staphylococcus aureus</p> Signup and view all the answers

    What can cause severe combined immune deficiency (SCID)?

    <p>Genetic factors</p> Signup and view all the answers

    Which type of vaccines is the most effective tool for disease prevention?

    <p>Live attenuated vaccines</p> Signup and view all the answers

    What are the advantages of nucleic acid vaccines such as DNA and mRNA vaccines?

    <p>Virtually zero risk of infection from the vaccine itself</p> Signup and view all the answers

    For which diseases are plant-based vaccines, using virus-like particles, in development?

    <p>Rotavirus</p> Signup and view all the answers

    What does immunotherapy include?

    <p>Anticancer vaccines</p> Signup and view all the answers

    What is a challenge of anticancer therapies such as checkpoint inhibitors and adoptive T-cell transfer?

    <p>Overcoming immunosuppressive tumor microenvironments</p> Signup and view all the answers

    Study Notes

    Immunology and Immunotherapy: Key Facts and Developments

    • The causes of autoimmune disorders are not fully understood, but genetic factors have the most supporting evidence.
    • Women are significantly more likely than men to develop autoimmune disorders.
    • Cell-mediated autoimmune disorders, such as Type 1 diabetes, and diseases caused by autoantibodies, like hyperthyroidism, present specific challenges for treatment.
    • Treatments for autoimmunity vary; organ/site-specific disorders are easier to treat, while multi-organ/site disorders often require general immunosuppression, leaving patients vulnerable to infections.
    • Monoclonal antibodies, such as anti-TNF-α antibodies, are emerging as attractive options for autoimmune disorder treatment.
    • Superantigens can cause superantigen shock by activating a large fraction of T cells in the body, and examples include those produced by Staphylococcus aureus and Streptococcus pyogenes.
    • Immunodeficiency can be genetic, as in the case of severe combined immune deficiency (SCID), or caused by infections, such as in AIDS, and treatments vary accordingly.
    • Vaccines, including inactivated, attenuated, subunit, conjugate, nucleic acid, and plant-based vaccines, are the most effective tool for disease prevention.
    • Nucleic acid vaccines, including DNA and mRNA vaccines, have advantages such as virtually zero risk of infection from the vaccine itself, but can be unstable.
    • Plant-based vaccines, using virus-like particles, are in development for diseases such as rotavirus, hepatitis B, and West Nile virus.
    • Immunotherapy includes anticancer vaccines, checkpoint inhibitors, adoptive T-cell transfer, and the role of the gut microbiome in cancer treatment.
    • Anticancer therapies, such as checkpoint inhibitors and adoptive T-cell transfer, pose challenges such as overcoming immunosuppressive tumor microenvironments and variations in treatment outcomes.

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    Test your knowledge of immunology and immunotherapy with this quiz covering key facts and recent developments. Explore topics such as autoimmune disorders, immunodeficiency, vaccines, monoclonal antibodies, superantigens, and the latest in anticancer therapies.

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