IMMUNO-MO-FO Flashcards

1
Q

Diffuse Scleroderma Ab?

A

DNA topiosomerase I

aka Scl 70

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2
Q

CREST Ab?

A

Centromere Abs

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3
Q

X linked agammaglobinemia of Bruton

A

Fine until 6 mo
Recurrent resp inf
Mut in Bruton tyrosine kinase on X chr
= can’t mature B cells = All Ig are decreased
Electrophoresis = no gamma bump
Inc infections with strep, resp, pseudomonas, hemophilus

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4
Q

3rd pouch

A

Inf para, thymus

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5
Q

4th pouch

A

Sup para, C cells

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6
Q

What is the weird ass syn assoc with DiGeorge?

A

22q11 micro deletion of Tbox1 gene

DiGeorges and VCFS

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7
Q

DiGeorge syn

A

No thymus, no parathyroid = no PTH = Dec Ca2+
Heart: tetrology of fallot (2nd MC: Truncus arterioles)
Increased T cell ing = virus, fungal
LN depleted in paracortex

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8
Q

SCID

A

T and B cell def
X linked - mut in common gamma chain of IL-R
AR - def of adenosine deaminase

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9
Q

Wiskott Aldrich Syn

A

English James Bond, wearing a tie, likes to drink whiskey = Inc Ethyl Alcohol –> Dec Mental fxn
TIE - Thrombocytopenia, infections, eczema
Inc IgE, IgA
Dec IgM
Mut in WASP gene - cytoskeleton glycoprotein

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10
Q

AIDS encephalitis

A

Migroglia

Multinucleated giant cells

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11
Q

How does HIV attach?

A

gp120 - to CD4 and M

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12
Q

How does HIV fuse and enter?

A

CCR5 - 1% pop homo deletion = non progressors

CXCR4

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13
Q

HIV sensitive test?

A

ELISA

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14
Q

HIV confirmation?

A

Western blot

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15
Q

Drug that blocks CCR5?

A

Maraviroc
Avir - AIDS
Rocks

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16
Q

CD

A

SMX-TMP - for pneumocysitis

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17
Q

CD

A

Macrolide - toxo and crypto

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18
Q

Take a sulfa drug, next day = hemolysis, think?

A

G6PD
ie. SMX
Dapsone

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19
Q

NK cell CD?

A

CD 16

CD56

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20
Q

1st line against virus and tumor?

A

NK cells

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21
Q

T cell signal transduction?

A

CD3

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22
Q

T helper cells

A

CD4

Regulate immune responses

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23
Q

Cytotoxic T cells

A

CD8

Kill altered or infected cells

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24
Q

Naive B cells

A

BOTH IgM and IgG

before they’ve seen antigen

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25
B cell CDs?
CD 19, 20. 21
26
Monocytes? | CD?
Baby M in blood | CD14
27
Tells SC to become lymphoid SC?
IL-7
28
Tells SC to become myeloid SC?
IL-3 | GM-CSF
29
Myeloid SC to become Eos?
IL-5
30
TDT
Inserts random bases at junctions of VDJ for variability | Marker for early stage T and B cell ALL
31
LN Outer cortex: Paracortex: Inner medulla:
B cells - follicles with germinal centers T cells M
32
Antigen?
Antibody generating substance Foreign, chem complex, big Induce specific Ab
33
Epitope
Antigenic determinant of the antigen
34
What causes margination and rolling in acute inflam?
E-selectins
35
What causes tight binding in acute inflam?
Integrins - aka CD 18 | Def = LAD
36
What attracts Neuts?
C5a, IL-8, LTB4
37
What two things opsonize?
IgG, C3b
38
How does s. aureus work around opsonization?
Protein A binds to Fc part of IgG
39
if you have chronic granulomatous dz, what do you get infected with?
Catalase + bacteria - lack H2O2 | You don't have NADPH = Dec ROS
40
What is increased in keloid scar?
TGF-B
41
Induces Th0 to Th1?
IL-12 | IFN-y
42
Induces Th0 to Th2
IL-4
43
Induces Th0 to Th17
IL-17 TGF-B IL-6
44
Tuberculoid leprosy
Th1 response | Little disease
45
Lepromatous leprosy
Th2 - Th2 response and reciprocal inhibition of Th1 | Disfiguring dz
46
1 Ab response?
IgG
47
What induces IgA?
IL-5 | TGF-B
48
What induces IgE?
IL-4
49
What is our defense against extracellular bacteria with polysaccharide capsule?
Plasma cells Need Ab mediated humoral immunity to opsonize 3: s. pneumo, h flu, n. meningitidis
50
What crosses placenta and = neonatal lupus?
IgG will ro ro ro across the placenta | 3rd degree heart block
51
Sjogrens
Assoc RA Marginal zone NHL Schirmers filter paper test
52
Old woman endometrium atrophic, bely seeded?
Papillary serous adenocarcinoma | Pap tumor with projections that float off and seed
53
Lichen simplex chronicus
Leukoplakia Simply chronic scratching thick skin
54
Lichen sclerosis
Leukoplakia | Paper thin
55
Condyloma lata
Secondary syphilis VDRL-FTA Genital warts that are flat
56
Sphingomyelin accumulates
``` Neiman Pick Jew Cherry red spot Neiman picks his nose with his sphingers (chr 11) = gets big organs from eating it Flicks it on zebra ```
57
Melanoma
HMB-45+ | S100+ = neural crest cells
58
Acral lentiginous
Black people - Bob Marley lived in St. Kits on 9 mile island gene: c-kit - tyrosine kinase, chr 9 --> def in p16 Tx: Imatinib
59
Tinib =
tyrosine kinase inhibitor
60
Imatinib tx for?
Melanoma GI stromal tumor (GIST) CML
61
Lentigo maligna
Best melanoma, best P | Old persons face
62
Familial melanoma?
Chr 9 def in p16
63
Tx Hairy cell leukemia
Claduribine
64
Langerhans histiocytosis
M CD1A + S100+ EM: birbeck granules
65
Cholera toxin
Turns on Cl- channel = inc cAMP | Water follows the Cl-
66
Shigella toxin
Bloody D | Sixty S
67
Diptheria toxin
(DI-2)theria - elongation factor 2
68
Tumbling motility
Listeria monocytogenes
69
Listeria toxin?
Actin rockets to get into the next cell | Intracellular
70
Falling leaf motility
Giardia Lambia | Beaver fever - drink the water they shit in
71
Strawberry cervix and corkscrew
Trichimonas vaginalis | Its tricky to screw a vagina and get a strawberry
72
CF
C7TR C - cAMP Cl- channel 7 - chr 7 70% have deletion phenylalanine at 508 = misfiled and gets tagged w ubuiquitin
73
Two Tx of CF:
Lumacaftor - chaperones misfolded protein to surface | Ivacaftor - opens the gate