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Pathophys Exam 2
immunology, hiv, hep, ashtma, copd, swine flu, diabetes
18
Pathology
Graduate
10/18/2009

Additional Pathology Flashcards

 


 

Cards

Term

 

 

What TH1 cytokine interleukin is crucial for combating endogenous antigens (intracellular infections, cancer)?

Definition

 

 

IL-2 is crucial for what?

Term

 

 

Name the three primary Th cells? What are naive Th cells called?

Definition

 

 

What are Th1, Th2, Th17


What does Th0

indicated?

 

(good kitty.  why are you hiding under Ryan's couch?)

 

Term

 

 

What interleukins do TH2 cells have?

 

(come on, now!  Imagine it's trivia night!)

Definition

 

 

IL-4 (B cells), IL-5 (eosinophils), and IL-8 (neutrophils)

Term
What are TH2 cells crucial for?
Definition

 

What is crucial for

combating extracellular antigen via the generation of antibodies (humoral immunity), chemotaxis of eosinophils and PMNs and allergies?

Term

 

What does IL17 do?  Which cell produces it? 

 

(I hate to quote Homer Simpson, so I'll say "duh" and expect that we'll win the Nobel prize for naming it)

 

How about IL-22?  Which cell produces this one?

(doh!)

Definition

 

Th17 produces both.

 

IL-17 which stimulates macrophages and other inflammatory cells to migrate to the area of injury;

 

IL-22 which stimulate epithelial cells to secrete antimicrobial chemicals.

Term

 

 

What inhibits Th2 activity?

 

How about Th1 activity?

Definition

 

Shouldn't have been such a "rockstar", huh?

 

These questions are too easy.

 

IFN g inhibits TH2 activity;

IL-4 inhibits TH1 activity

Term

 

What kind of cells are T regulatory cells?

 

How are they referred to?

 

(come on out, kitty; it's Tuesday; Ryan's at trivia)

Definition

 

Some CD4 cells are called T regulatory cells. They produce IL-10 and TGFb which suppress T cell activity.

 

 

This has been called the Th3 cytokine profile

 

 

 

Term

 

 

Name the 4 interleukins Th2 makes?

Definition

 

 

Il4: B cells

IL5: eosionsophils (allergies)

Il8 neutrophils:

IL 13: epith cells and smooth muscles

 

Term

 

 

Name some key effector cells?

Definition

 

 

macrophages, T cytotoxic cells, B cells, PMN's and Eosinophils

Term

 

 

Where are granzymes founds?  And what do they do?

 

(imagine Tina on test day saying "duh")

Definition

 

granzymes include proteases, perforins and phospholipases that are toxic to the target cell and can directly kill the cell with release of cellular antigens (may become exogenous antigens for CD4 activation)


 

Term

 

To really fight cancer or HIV what is given?

Definition

 

give IL2 to really kick in and then interferon--

to stimulate ability to kill cells infected or w/ cancer

 

Term

 

In a Th1 cells, what does Interferon act upon?

 

in a Th1 cell, what does IL2 act upon?

Definition

 

 

Interferon---macrophages

 

IL2--T-cytotoxic cells

Term

 

 

What another name for a Th 8 cell?

 

How 'bout a Th 4 cell?

Definition

 

T cytotoxic cell

 

 

T helper cell

 

(you got it now.  no need to study more.  You got it!)

Term

 

 

What iL's does a Th2 cell make?

 

What what does each one of these act upon?

Definition

 

IL-4, IL-5 and IL-8

 

 

IL-4>>>>B cells

IL-5 >>> Eosinophils

IL-8>>>PMNs

 

(good job!  your preceptor will be so proud.  don't worry that you forgot to check vitals and put the suppository in with the wrapper intact.  At least  you remembered to take a lunch break)

 

 

 

 

Term

 

 

This one is a little trickier.

 

What should our group name be at trivia night?

Definition

 

 

Come on, Matty!  That's been used over 30 times.  Enough with the Depends jokes, and may Patrick Swayze finally rest in peace.

Term

 

 

What creates IL-17 and IL-22?

 

Which cell type does IL-17 act upon?

IL-22?

Definition

 

 

Thelper 17 cell

(I know; these are too easy)

 

IL-17 acts on Macs

 

IL-22 epithelial cells

Term

 

 

What makes NK cells?

Definition

 

 

made from T-helper 1 cytokines

 

(N1ke? does that help?)

Term

 

 

do NK cells use MHC or activate CD4?

Definition

 

 

Nope, not at all. 

 

- uses its own NK receptor to bind to                                         transformed cells (especially tumor cells) without using the MHC complex

   (MHC unrestricted) or the activation of CD4 cells then kills with toxins

 

(doh!)

 

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