Bacteria
First responders
To Be or Not To Be A T-cell
To Be or Not to Be a B-cell
Diseases
100

Sensitivity to this agent differentiates S. pneumonia vs. S. Mutans.

What is optochin?

100

This receptor can be found on the surface of macrophages and recognizes LPS.

What is TLR4?

100

This signaling confers commitment to the T-cell lineage.

What is Notch and IL-7 Signaling?

100

The presence of these two globulins signal that B cell development is complete in the bone marrow.

What is IgM and IgD?

100

This disease results from a lack of CD4+ T cells.

What is Bare Lymphocyte syndrome or MHC II deficiency?
200

This Neisseria virulence factor confers resistance to phagocytosis.

What is the polysaccharide capsule?

200

Adhesion molecule pair that allows for tight binding in the process of extravasation.

What is ICAM and LFA?

200

The protein that allows thymocytes to see tissue-specific proteins during in the medulla (not oblongata)

What is AIRE (autoimmune regulator)?

200

The amount of chances you get to successfully rearrange the V(D)J heavy and light chains respectively.

What is 2 and 4 chances?

200

The enzyme that causes Chronic granulomatous disease when absent.

What is NADPH oxidase?

300

Aerobic gram-positive spore former that produces toxins that cause lethal necrosis and edema. Can be acquired through cutaneous, inhalation, gastrointestinal, or intravenous means.

Bacillus anthracis

anthrax toxins - Letha factor, and edema factor

300

These acute phase proteins acts as opsonins and complement activators.

What is c-reactive protein and mannose-binding lectin?

300

The success of this process leads to the generation of a double positive cell expressing CD4 and CD8.

What is successful beta-chain rearrangement and pre-TCR formation?

300
This stage of B cell undergoes DJ heavy chain rearrangement followed by V-DJ rearrangement.

What is a pro-B-cell? 

300

Disease resulting from failed VDJ recombination leading to recurrent viral, bacterial, and fungal infections.

What is severe combined immunodeficiency disorder (SCID)?

400

This gram-positive anaerobe secretes alpha and enterotoxin that cause hemolysis and food poisoning respectively.

What is Clostridium perfringens?

400

You wont find me in healthy tissue but I tend to die and leave behind pus in infected tissue.

What is a neutrophil?

400

Selection meditated by self-antigen/MHC complexes is carried out by these cells.

What are cortical epithelial cells? 
400

During the small pre-B cell stage this light chain is rearranged first.

What is the kappa light chain?

400

Autoimmune polyendocrinopathy-candidiasis-ectodermal dystrophy (APECED) is caused by a defect in this protein.

What is AIRE (autoimmune regulator)

500

The combination therapy used to treat M. Tuberculosis infection.

BONUS: What are the mechanism of action?

Rifampin, Isoniazid, Pyrizinamide, Ethambutol (RIPE)

RIF - inhibits DNA-dependent RNA pol

INH - inhibits mycolic acid synthesis

PZA - inhibits translation (RpsA specifically)

EMB -inhibits arabinogalactan synthesis (prevent antibiotic resistance)

500

The classical C3 convertase.

What is C4bC2a?

500

The processes that assure the recognition of self-MHC and non self-reactive T cells respectively.

(must pair answers correctly)

What is positive and negative selection?

500

Positive selection for B cells.

What is Baff-dependent entrance into the follicle of the spleen.

500

A defect in this protein leads to X-linked agammaglobulinemia (loss of B cells).

What is Btk or Bruton's tyrosine kinase?

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