TODDLING T CELLS
IN THE MUCOSA
BRINGING UP BABY B CELLS
REMEMBERING IMMUNOLOGICAL MEMORY
"M" IS FOR IMMUNOLOGY
100

A T cell is born in this state, expressing neither CD4 nor CD8.

Double negative.

100

This form of secondary lymphoid tissue found in the mucosa contains mostly B cells.

Isolated lymphoid follicle.

100

The main recombination event of an early pro-B cell.

D-J.

100

The type of memory T cell that stays in the tissue where an infection took place.

Resident memory.

100

These thymocytes must now undergo positive selection.

Mature double positive.

200

This type of T cell never needs its receptor checked during maturation.

γδ T cell.

200

These cells in the mucosa do not produce cytokines, a deviation from their normal function.

Macrophages.

200

The genes necessary for the formation of the BCR (and the TCR too).

RAG genes.

200

This type of vaccine consists of a carbohydrate antigen complexed with a toxoid.

Conjugate vaccine.

200

A place a B cell may form a germinal center near the intestines.

Mesenteric lymph node.

300

The outcome of a T cell binding to MHC in the absence of B7 costimulation is a form of this two word phrase.

Peripheral tolerance.

300

SCFA is short for this; they may have an anti-inflammatory or immuno-regulatory effect.

Short chain fatty acid.

300

The two segments making up the surrogate light chain.

VpreB and λ5.

300

This scientist pioneered the process of attenuation, with help from experimental rabbits.

Louis Pasteur.

300

"M" is for Moderna, one of the first companies to commercially manufacture this type of vaccine, another "M".

mRNA.

400

This part of the pre-TCR associates with the CD3 complex and the ζ chain.

Superdimer.

400

This specific type of antibody found in the mucosa has an abnormally long hinge region, allowing it to better bind its epitope.

IgA1

400

The greek letter denoting the heavy chain.

μ.

400

The receptor expressed by Naive B cells, but not memory B cells, that allows for activation to be inhibited if high affinity IgG is present.

FcγRIIB1.

400

For an autoreactive B cell, receptor editing seems to be reserved for binding to this three word type of antigen.

Multivalent self antigen.

500

The cytokine and transcription factor required for T cell development.

IL-7 and Notch1.

500

This two word phrase is the result of CD103 dendritic cells responding to food antigens in a way that causes CD4 cells to differentiate into TREG cells.

Oral tolerance.

500

The two transcription factors required throughout the entire process of B cell development.

E2A and EBF.

500

Besides the variola virus, the only other disease that has been completely eradicated.

Rinderpest.

500

This scientist was responsible for developing over 40 vaccines including those for two other "M's", Measles and Mumps.

Maurice Hilleman.

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