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16 Jan 2018

1) Explain how clonal selection contributes to the development and expansion of antigen specific lymphocytes that do not respond to self.

2) Distinguish a primary and secondary immune response and the relationship of the secondary response to immunological memory and the use of vaccines.

please answer in detail. Thank you.

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Trinidad TremblayLv2
16 Jan 2018
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Related questions

1. What is the role of primary lymphoid follicles in eliminating B cells that have antigen receptors specific for soluble self antigen?

2. What is "affinity maturation"? Affinity maturation of the B cell response has been likened to a process of "Darwinian selection". Explain how so?

3. If you could produce a strain of mice in which the follicular dendritic cells of the lymphoid organs were deleted, list the differences in the humoral immune response you might expect to see.

How did inoculation with cowpox generate immunological memory and provide protection against smallpox? Did cross-reactivity play a role?

How did Pasteur’s work with attenuated (weakened) bacteria further our understanding of the role vaccination can play?

What are the three characteristics that define an adaptive immune response? Briefly define each of the characteristics.

Define primary versus secondary immune response.

What’s the difference between totipotent, pluripotent, multipotent and oligopotent when evaluating cell differentiation capacity?

What is hematopoiesis?

What cell types are derived from myeloid versus lymphoid progenitor cells? Describe the function of each WBC type.

What is clonal selection?

What role do antibodies play with regard to antigen recognition and immune defense that is different from what Tcrs provide?

As described in class generally understand the outcome of B cell, Th cell, and Tc cell activation. Understand that these cells can differentiate into effector (plasma cells, cytokine producing Th cells and CTLs) or memory cells.

Understand how granzymes and perforins play a role in apoptosis.

Which types of cells typically express MHC Class II? Do these cell types also express MHC Class I, and if so why?

With regard to Tc and Th cells, what kinds of peptide antigens (think about exogenously versus endogenously derived antigens) are recognized?

Be able to show cooperation between Tc, Th and B cell responses (refer to class notes).

What is the overall role of MHC Class I and II?

What is ADCC and what cell types are involved?

Understand and be able to provide examples highlighting the cooperation between innate and adaptive immunity. Note: ADCC and dendritic cell and macrophage interactions with Th cells illustrate examples of innate/adaptive cooperation.

What are the primary lymphoid organs? What role do they play?

What role does the lymphatic circulatory system play in immune defense?

What’s the difference between plasma, ISF, and lymph?

What’s the difference between afferent and efferent lymphatic vessels?

How is lymph ultimately delivered back to blood?

Define extravasation. Why is this important?

What are HEVs and what role do they play?

What are the secondary lymphoid tissues/organs?

What role do lymph nodes play?

What role does the spleen play?

What is Leukocyte Adhesion Deficiency?

What’s MALT and its role?

What is the inflammatory response and what are characteristics associated with inflammation?

What role does histamine play in the inflammatory response?

Vaccination (Short Informative Paper)

1.Definition of vaccine/vaccination

a. Describe experiment that lead to discovery of vaccination

2. Describe how a vaccine is made or prepared(i.e. mechanisms for how do they work; in terms of immunity)

3. Explain how vaccines are administered(dosages, administration procedures)

4.Classification of vaccines (Live, attenuated(Bacteria & Viral), inactivated)-distinguish between

a. Describe the course of treatment given if a person is not up to date on vaccination against tetanus

b. Briefly elaborate on the significance of the vaccinia virus in terms of vaccine development/research

5.At least two childhood diseases for which vaccines are available and the name of the vaccines for the diseases.

6. Comparison of HINI flu virus vs influenza “flu” virus

a. Name of the virus(itself that causes the disease) . What type of viruses are they?

b. With HINI: what is the origin. Method of infection, and symptoms of the disorder

c. Why is the flu more prevalent in the winter time?

d. Provide rationales for the seemingly severe flu season/mortality rates we had this past season.

e. vaccines/latest technology for flu

7. Explain how the flu vaccine works: begin with injection and go up to the adaptive immune

response. DO NOT address the development or selection of lymphocytes . Also do not

include details of signal transduction either. Do not address Re-exposure.

--- For this part use outline format and you may include pictures to show the steps in this process

8. To Vaccinate or Not: Problems surrounding vaccines in general. Include your opinion, based on the

evidence presented(i.e. you can use a specific example(s) where there is controversy about a particular

vaccine). b. Is natural immunity better than vaccination? Why or why not?

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