immunity Flashcards
invovled with humoral immunity
cells and infection
B-cell
Neutrophils
Bacterial infections
protect the tissues
cell mediated immunity
T-cells
macrophages
nonbacterial infections
T-cell
3rd pharyngeal pouch missing
hypocalcemia
Chro 22
DiGeorge syndrome
T-cell
candida infection on skin and mucous membranes
T-cell can’t fight candida
Chronic mucocutaneous candidiasis
chronic fatigue syndrome
Steroids
anti-inflammatory and physiologic actions
steroid best for crossing membrane
Dexamethasone
Steriod good for cortisol replacement
hydrocortisone
Steriod good for fluid replacement
Fludrocortisone
which drug prolong longevity of transplanted organs
ihibits calcineurin
cyclosporine
gingival hyperplasia, hirsutism, renal failure
decrease T-cell activation
by decreasing IL-2 transcription
Tacrolimus
inhibit mTOR kinase
decrease response to IL-2
Sirolimus( rapamycin)
tyrosine kinase inhibitor
2 tyrosine kinase inhibitor
sirolimus
imatinib
Cells involve in a TRAP pos leukemia
75% B cell
25% T-cell
hairy
T-cells characterise by indented cell membrane
mycosis Fungoides
Sezary Syndrome
lymphoma
enzyme involve with SCID
affects all rapidly dividing cell
Adenosin deaminase
X-linked recessive
eczema, Normal Ig-A/E levels
mc in Boys(X-linked R)
Thrombocytopenia
wiskott-Aldridge syndrome
needed for class switching
IL-4 defect
CD-40 ligand defect
Tyrosine kinase defect
Normal B-cell count defective function
early onset
defective cell signaling
x-linked recessive
Burton’s Agammaglobulinemia
Agamma globulinenia
like Bruton’s
Lacking B-cells function with normal count
late onset
CVID
cellular components of Leukemias
98% B cells
2% T-cells in periphery
1 plasma cell cancer
plasmacytoma
multiple plasma cell cancer
multiple osteolytic lesion
Multiple myeloma
finding of MM
Rouleaux formation
hi Ca
Ig-G M-Spike
Kappa light chains(Bence jones proteinuria
Heavy chain disease
Ig-A MM of bowel wall
Ig-A plasma cell visible
Malabsorption
Selective Ig-A def
Mucosal infections
transfusion anaphylaxis
May run with Selective Ig-G2
main opsin to coat encapsulated organism
Ig-G2
IgG 2 defect Sign
Recurrent encapsulated organism infection
may run with selective Ig-A def
what is the G-pos encapsulated bug
Strep Pneumo
G-Neg encapsulated org
Salmonella
Klebsiella
H. flu B
pseudomonas
neisseria
citrobacter
High Ig-E
red-hair female
defective neutrophils
Job’s syndrome
Neutrophil defects conditions
myeloperoxidase def
NADPH-oxidase (CGH)
absolute neutropenia
neutrophil defect
recurrent gram-pos infection
myeloperoxidase def
neutrophil
x-linked R
dihydrorhodamine pos
Neg NBT test
CGD:NADPH-oxidase
low absolute Neutropenia at risk for
<1500
<1000
<500
staph and pseudomonas
1 antibiotic=staph
2 antibiotic=pseudomonas
what you see with macrophage defect
NADPH-Oxidase def (CGD)
Chediak-Higashi
Albinism, Lysosomal inclusions
can’t digest pathogen
chediak-Higashi syndrome
two populations with highest incidence of HIV
heterosexual Black women
Elderly
Lowest HIV risk population
Pre-pubertal female
vaginal acidity gained at puberty..HIV💕acidic mucosae& CD-4 receptors
location for the most CD4 receptors
female cervix
Bld vessels
Macrophages (everywhere they go)
T-helper cells (attacked first)
CNS
Testes
T/F HIV penetrats cells
F
cancers common in HIV
where CD4 is aboundant
Cervical cancer
Kaposi Sarcoma
CNS
testicular lymphomas
Anal cancer (HPV)
portal of entry for HIV RNA injection
GP41
HIV attachment of cell
needs CCR5
GP120
Used for HIV assembly
P17 and P24
Use for HIV RNA integration with host
Polymerase protein
when to screen pregnant woman for HIV
1st tri and 3rd tri
use >90 days after HIV exposure
Ora-Quick
use for screening only in the first 18 months of life
PCR
AIDs defining: CD4 count<200
Peds<20%
PJP prophylaxis
HIV CD 4 count <100
Toxoplasmosis
HIV
at CD4 count<50
Peds CD4 < 10%
Begin HAART therapy
Highly active antiretroviral therapy (HAART) is a combination of three or more drugs used to treat HIV infection
HIV prevention
PrRP
tenofeovire/emtricitabine
pericoital period and HIV neg partner
HIV
Post Exposure prophalaxis (PEP)
RET: Raltegravire
Emtricitabine
Tenofovire
T/F
HIV infected mother avoid breastfeeding
T
T/F
antiviral for new born up to 1st 6 month
T
use in mother with detectable HIV viral load
IV Azothioprine
PEP: RET
HIV entry inhibitor
enfuvirtide
CCR5 receptor antagonist
Maraviroc
Reverse transcriptase inhibitor
AZT
3TC
4DT
DDI
DDC
Abacavir (ABC)
Didanosine (ddI)
Emtricitabine (FTC)
Lamivudine (3TC)
Stavudine (d4T)
protease inhibitors
indinarvire
Saquinavir
integras inhibitors
Raltegrase
Elvitegravir
prevent megaloblasic anemia with _________for PJP treatment
Trimethoprim/sulfamethoxazole
Leucovorin
pentamindine aerosol
Blocks Dihydrofolate Reductase
trimethoprim
Pyrimethamine
methotrexate
Block PABA
sulfamethoxazole
sulfacetamide
sulfinpyrazone
sulfasalazine
sulfadiazine
Mycobacterium Avium intracellular treatment
clarithromycin
azithromycin
Block translocase.
macrolide
clindamycin
Lincomycin
MOA of vasovagal syncope post vaccine administration
hypovolumic and bradycardic
stress-induced cardioinhibitory and vasodepressor response
What is an antigen
molecule that sets off immune response
Haptens
Immunogen
most important factor that determines immunogenicity
Variability
What do macrophages do for a living
ingest
phagocitize
Digest
Present
MHC II complex
Variable Beta region
Invariant chain is displaced
IL-1 is released
what is immunogen
Carrier effect use in vaccines: eg: DTAP
Hapten + something else
large enough to attract immune response
IL-1 function
fever
nonspecific symptoms of illness(low energy state)
Recruits T-helper cells
Fever effect
causes secretion of Ig-A
rapid response of immue cells
raise BP by 10 for 1degree rise in temp
Infections that cause Heart Block
legionella
lyme disease
chaga’s disease
Diphtheria
Typhoid fever
what does fever mean
IL-1 show up
fever pattern can be diagnostic
104=medical emergency
make less immunogenic
detergent
disrupts the adhsion of pathogen membrane
make less immunogenic
antiseptic/disinfectant
destroys membrane and inactivate endotoxin
99% killer
phenol is mc
iodine –hospital use
sterilization
spores killer
121 degree C with vaporized heat for 15mn
most immunogenic bacteria
Shigella
two arms of immune system
hemoral
cell mediated
where do macrophages go?
T-cell and macrophages respond to
virus
fungus
mycobacteria
protozoa
parasite
collagen vascular Dz
neoplasm
first sign of cell injury
NA/K pump stops
swelling
swelling and neurophils show up
acute inflammation
seen in chronic inflammation
cell
biopsy
x-ray
t-cells and macrophages
fibroblas: fibrosis on biopsy
calcification on x-rays
cells involved with immediate hypersensitivity
mast cells and eosinophils
no complement
cytotoxic deliberate attack on self
type II HSensitivity
consumptive complement,
tissue damage,
immune complex deposition
Type III hyperS
not an attack on self
cells involve with type 4
T-cell
Macrophages
Begins MAC complex
C-5b
MAC complex perforator
C-9
mcc of death in angioedema
suffocation (airway)
angioedema is caused by
hi C5-A
C-1 esterase inhibitor defect
Drugs that cause angioedema
except
pril and sartan
candy
RH is a problem only when
mom is neg and day is positive
RhoGam given
1st: post delivery
2nd: 28wk every pregnacy
repeat at each delivery
differency between acute and chronic rejection
fibrosis/calcification on biopsy
antibody
SLE antibodies
AntiSmith
Double stranded DNA
Cardiolipin
antibody
Drug Induced SLE antibody
Histone
antibody
Progressive Systemic Sclerosis
Topoisomerase
antibody
Graves
TSH Receptor
antibody
CREST
Centromere
antibody
Goodpasture’s
Type 4 collagen
antibody
Primary Biliary Cirrhosis
Mitochondria
antibody
Alopecia Areata
Hair follicle
antibody
Rheumatoid Arthritis
anticyclic citrullinated peptide (anti-CCP)
antibody
Multiple Sclerosis
Myelin Receptors
antibody
Celiac Sprue
Gliaden/gluten
antibody
Type I Diabetes
Islet cell receptor
antibody
Vitiligo
Melanocyte
antibody
Myasthenia Gravis
Acetylcholine receptor
antibody
Mixed Connective Tissue Diseas
Ribonuclear protein
antibody
Pernicious anemia
Intrinsic factor
antibody
Pemphigus vulgaris
Desmosome
antibody
Bullous pemphigoid
Hemidesmosome
antibody
Hashimoto’s
Thyroglobulin
Microsomal
antibody
Scleroderma
Smooth Muscle
SCL-70
antibody
Sjogren’s
Rho
La
antibody
wegener’s
proteinase
c-ANCA
antibody
Idiopathic Thrombocytic Purpura
Glycoprotein IIb/IIIa
antibody
Polyarterits Nodosa
p-ANCA
B cells develop in ______ and differentiate in ________
bone marrow
Germinal center of lymphoid
drug that target B cell
Rituximab
TCell develop in ______ mature in _______ and differentiate in _________
Bone marrow
thymus
paracortex of lymphoid tissue
drug that target t-cells
monoclonal antibody
Muromonab
IL-1 inhibitor
Anakinra
IL-2 inhibitor
cyclosporin
Tacrolimus
Daclizumab
IL-4 function and inhibitor
Isotype switching
Dupilumab
IL-5 function and drug
Isotype switch to Ig-A
Mepolizumab
how do T- cell talk to B cell
CD-40 ligand
pre B-cell marker
Mu chain visible in cytoplasm
immature B-cell marker
Ig-M on surface
Mature B-Cell marker
Ig-M(monomer) and Ig-D on membrane
how do you stimulate B-cells
Endotoxin
Pokeweed mitogen
track growth with labelled thymidine
IG-M
primary response
Arrives in 3 days
Peaks in 2 weeks
Lasts for 2 months
IG-G arrives
in 2 weeks
Peaks in 2 months
Lasts for 1 year
vaccine schedule
DPT, IPV, HiB, S. Pneumo
2,4,6,18,5-6yr
Ig-G last for 2 months
when does memory develop
12 month
completes at 15 months
Ig-G only
memory response time
Ig-G has highest affinity
Arrives in 3 days
Peaks at 5 years
Lasts for 10 years
MMR schedule
15m, 5-6yr
pre-college
varicellla schedule
15m
5-6yrs
Hep B schedule
Ig-G and vaccine in delivery room
2m, 15,
Live vaccines
BCG
OPV (Sabin)
Yellow fever
Smallpox
MMR
Varicella
Rotavirus
BOYS MVP
which vaccine needed at 6
only half dose diphtheria (D-d)
isotype refers to
antibody class
G,A,M,D,E
idiotype refers to
the actual antigen binding site
Macrophage function and
t-cell diffenentiation
Macrophage ingests antigen
Macrophage forms a phagosome
Lysosome digests the antigen
Macrophage presents the antigen
Antigen binds to MHC-II complex
Interluken released
how do T-cell talk to macrophages
T: B-7 molecule to CD-28
Thymic T cell marker
CD 3, CD4/8
what control clonal deletion
thymosin
thymopoietin
what are immunoprivileged sites
Brain
thymus
cornea
testicle
CD8 expresses ____ and function as
MHC I
T suppressor: stop infection spread
T-cytotoxic: destory infected cell
MHC II
CD4 function
T-Helper
speaks to B cell CD40 ligand
to macrophages via B7/CD28
T helper 1 response to
cell mediated
T helper 2 response to
humoral
T-cell secrete
all interleukin except IL-1
produce intereron gamma and TNF gamma
controls B- cell and macrophages
NKiller cells marker
CD16/56
immunosurveillance
cancer killer at 1 cell stage
enhance NK cell ability with
levamisole
A MAN SPENDS HIS HEALTH CHASING GREAT WEALTH
THEN HE SPENDS HIS WEALTH TRYING TO GET BACK HIS HEALTH
What are the Granulocytes
Neutrophils (60%) Never
Lymphocytes (30%) Let
Monocytes (8%) Mom
Eosinophils (2%) Eat
Basophils (1%) Beans
Gram stain steps
Step 1: add crystal violet (binds to exposed peptidoglycan)
Step 2: add iodine (seals blue color into wall)
Step 3: wash with alcohol (washes off excess crystal violet)
Step 4: add saffron (colors outer membranes)
use for staining mycobacterium
Acid fast
pink pathogen
partially acid fast bugs
Norcardia G-pos
Cryptosporidium (protozoa)
most abundant granulocyte
Neutrophils (60%)
who’s the first line of defends
Neutophils
10% circulating
90% marginated
4.5—peak at 3day
catalase pos bug
staph A.
Pseudomonas A.
Neisseria Family
how to make an abscess soup
O2 burst peak @ 7days
Free radical kills everything
create anaerobic area
bug
abscesses 1-3 days
staph A
bug
abscess 4-7 days
S. pyogenes
abscess past 7 days
anaerobic
MC in Brain
neutropenic management
any fever: cover Staph and pseudomonas
fever persist after 48hr cover for fungus
MCC of neutorpenia
viral
drugs
what mediates monocyte transformation
marker
interferon
CD4 receptors
mcc of monocytosis
viral
conditions with extreme monocytosis
salmonella typhi
TB
EBV
Listeria
Syphilis
primary response to allergen
Allergen ingested forms Phagosome
Digested
Presented to T-lymphocytes on MHC 2 complex (bind to V-beta region)
T-cells bind to B-cells by CD-40 ligand
T-cells produced IL-4
B-cells produced Ig-E
secondary response to allergen
Ig-E binds to allergen
burries F-c portion in mast cell
mast cell degranulates
Mast cells release
histamine (immediates)
SRS-A(4-8 hrs)
ECF-A
acute symptoms of allergies is caused by
Histamine
redness flushing, wheezing, itching, warmth, swelling, conjuntivitis
what is reponsible for late symptoms of allergies
Slow reacting substance of anaphylaxis (SRS-A)
function of SRS-A
most potent bronchoconstrictor
attracts eosinophils in allergic reactions
eosinophil chemotactic factor of anaphylaxis
ECF-A
function of eosinophils
counter-regulator of Mast cell
coats parasite
Released from eosinophils
histaminase
arylsulfatase
Heparin
1st Gen antihistamines
Block H-1 receptors
strong anticholinergic(sympathetic)
Tachyphylaxis
drugs
1st gen antihistamines
diphenhydramine
Hydroxyzine
Dramamine
Meclizine
Phenylpropanolamine
phentermine
MOA of 2nd Gen antihistamines
H-2 receptor blocker
use for urticaria
used mc for GI peptic ulcer dz
Drug
2nd Gen antihistamines
Cimetidine
Ranitidine
Nizatidine
Famotidine
block 70% of acid output
least sedative
3rd gen Antihistamine
Terfenadine
Loratadine
Astermizole
list not complete
cofactor for antithrombin III
heparin
heparin Blocks
thrombin and factor10927
follow heparin with INR or PTT
PTT
What do you do when PTT is too high with heparin treatment
protamine sulphate
use ______if patient is bleeding with Heparin therapy
FFP
Effect of Heparin
break clot
bleeding
hyperlipidemia(++ Hormone-sensitive lipase)
thrombocytopenia (hapten=autoimmune)
Benefit of low molecular weight heparin
standardized
no need for PTT
fewer bleeding
lower incident of HIT
allergies rashes
type 1
urticaria
erythema multiforme
Stevens-johnson syn
Toxic epidermal necrolysis
allergic rashes
type 4 HS
Atopic dermatitis
contact dermatitis
Eczema
Eczema: spongiotic and Nummular
Asthma types
intrinsic asthma–born with..++cold
Extrinsic –environmental–dust mite
Eosinophilia
conditions
Neoplasia
Allergies and Addison’s dz
Asthma
Collagen Vascular Dz
Parasites
left shift means
increase bands
Bands are
Immature neutrophils with maximum germ killing ability
Myeloperoxidase and NADPH-Oxidase
precursors of mast cells
Basophils
semilar granules
what is the normal Leukocytes
penia< 4-12k<cytosis
viruses that mc cause leukocytes suppression
B-19
Hep E/C
all viruses can cause this
drug
leukopenia
vinblastin
AZT
chloramphenicol
Benzene
drug
agranulocytosis
Carbamazepine
Ticlopidine
clozapine
Causes of leukocytosis
High WBC, high Alkaline phospatase
stress demargination
infectiosn
leukemoid reaction(hi band, Blast <5%)
Leukemia (hi Band, Blast >5%)
myelodysplastic syndrome
In Leukemia
Acute
Chronic
means?
Acute: starts in BM
Chronic: starts in Periphery
lymph node cancer
lymphomas
myelodysplastic syn involves all cell lines
high or low
T/F
T
hodgkins lymphomas marker
CD 30
Most malignant lymph nodes
supraclavicular
Epitrochlear
Inguinal
jaw mass or abdominal mass
non-hodgkin’s lymphoma
MC
follicular lymphoma
BCL-2
T(14/18)
associated with Burkitt’s Lymphoma
BCL-2
C-Myc
T8/14
EBV
starry sky appearance
staging
one group of lymph nodes involved
Stage 1
staging
two groups of lymph nodes on same side of diaphragm involved
Stage 2
Stage
two or more groups of lymph nodes on both sides of diaphragm involved
Stage 3
staging
metastases
Stage 4
Myelodysplastic Syndromes
Hyperproliferative:
Polycythemia Rubra Vera
Essential thrombocythemia
Myelodysplastic Syndromes
Hypoproliferative
Aplastic Anemia
Myelophthisic Anemia (myelofibrosis; agnogenic myeloid dysplasia)
Aplastic Anemia: Drugs
Chloramphenicol
AZT
Benzene
Vinblastine
Aplastic Anemia: Viruses
low retic count
Parvovirus B-19: 90%
Hepatitis E: pregnant women
Hepatitis C: occasional