Block one high yield Flashcards
pluripotent stem cell + IL-3
lymphoid progenitor
pluripotent stem cell + IL-3 + GM-CSF
myeloid progenitor
plasma vs serum?
plasma has fibrinogen
serum does not
3 RBC cytoskeleton proteins:
spectrin
ankyrin
actin
no ankyrin inRBC –> ?
hereditary spherocytosis
myeloperoxidase
neutrophil
Azurophilic granule
lysozyme
lactoferrin
neutrophilic specific granules
gelatinase
tertiary granules
major basic protein
cationic protein
Eosinophil specific granules
Bid/Bax
pro-apoptotic
Bcl-2/Bid
antiapoptotic
genome: dsRNA segmented
tropism: pro-erythroblasts
travel to mountain west
Colorado tick fever virus
genome: dsDNA
tropism: systemic; latent in CD34+ cells (monocyte–>macrophage)
heterophile Ab negative
Owl’s eyes cells
Congenital –> deafness
Cytomegalovirus
genome: dsDNA
tropism: CD4+ T cells, others: PBMNCs, epithelial cells
exanthem subitum (aka roseola): rash that develops after a fever resolves
heterophile Ab negative mononuceosis
HHV6, HHV7
genome: dsDNA
tropism:
Acute: epithelial cells of oropharynx (supports lytic life cycle)
Latent: B cells
infectious mononucleosis: Heterophile Ab positive mono
Burkitt lymphoma: t(8:14)
Hodgkin & non-Hodgkin lymphoma
nasopharyngeal lymphoma
X-linked lymphoproliferative disease: inherited mutation in SAP adapter
Epstein Bar virus
genome: dsDNA
tropism: epithelial cells; B cells
in immunocompromised patients only:
primary effusion lymphoma
multifocal Castlemans disease
Karposis sarcoma virus
genome: ssRNA + or -
tropism: erythroid progenitor cells
NO envelope
erythema infectiosum: fiery red rash on cheek.
Transient aplastic crisis: in patients with underlying anemia
parvovirus B19
genome: ssRNA+
tropism: T-cells
Acute T cell lymphoma / leukemia (ATL): Viral transcription factor Tax drives proliferation; blocks apoptosis.
HAM/TSP: Inflammation on the spine
Human T-cell Lymphoma virus 1 and 2
1 > CD4’s
2> CD8’s
genome: ssRNA -
tropism: macrophages
capsid: HELICAL
Hemorrhagic fever
Ebola
T-cell zone of lymph node
paracortex (deep)
Lymph flow through node…
Afferent lymphatic vessels
Subcapsular sinus
Trabecular sinus
Paracortical sinus
Medullary sinus
Efferent lymphatic vessel
Prevents antigen in blood from entering thymic cortex
Blood-thymus barrier
Largest lymphatic organ
spleen
TLR ?
dsRNA
TLR 3
TLR ?
LPS
TLR 4
TLR ?
Triacyl Lipoprotein
TLR 1 and 2