dr.pedro berraondo [email protected] programade ......programade inmunologíae inmunoterapia....
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Matzinger P. Science. 2002. 296(5566):301-5.
The immune system must make two decisions:
1) To respond or not?
2) What kind of response do you use?
Immune response is determined by tissue damage.
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• Molecular pattern exposed in danger situation:
hydrophobic zones and nucleic acids
1) Molecular patterns associated with pathogens:
Lipopolysaccharide, peptidoglycan, lipoteicoic acid, Double-stranded and single-
stranded RNA, CpG motifs
2) Molecular patterns associated with damage:
EDA, high-mobility group box 1, heat shock proteins, ATP, uric acid,
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Guy B. Nat Rev Microbiol 2007;5:505-517.
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Guy B. Nat Rev Microbiol 2007;5:505-517.
Matzinger P, Kamala T.Nat Rev Immunol. 201111(3):221-30.
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Melero, I. et al. Nat. Rev. Clin. Oncol. 2014.
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Bezu L et al. 2015 Front Immunol 24; 6:187
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Melero, I. et al. Nat. Rev. Clin. Oncol. 2014.
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Biggs MJP et al. Interface. 2011.
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Kershaw MH et al. Nature Reviews Cancer 2013;13:525-541
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Chen DS et al. Nature 2017;541:321-330
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Chen L et alNature Reviews Immunology 13, 227-242 (April 2013)
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Melero, I. et al. Nat. Rev. Clin. Oncol. 2014.
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CTLs B cells
(IgG2)
Macrophages
(M1)
NK and ILC1s
B cells
(IgG1 or IgGE)
Macrophages
(M2)
Neutrophils
Myeloid suppresor cells B cells
(IgA)
IFNγ
Grmz
ROS
Intracellular viruses, bacteria and tumors
Tissue repair to block large organism
Extracellular microorganism
Exclusion of microorganism
ILC2sEosinophils
IL-25
IL-33
TSLP
IL-1β
IL-23
ILC3s Epithelial cells
(AMPs)
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Spitzer MH DS et al. Cell 2017;168:1-16
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Zitvogel et al. Nature Reviews Immunology 6, 715–727 (October 2006) | doi:10.1038/nri1936
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Chen DS et al. Nature 2017;541:321-330
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Melero, I. et al. Nat. Rev. Clin. Oncol. 2014.
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A) Tumor variants invisible to the immune system
1) Alteration of the antigen-processing machinery
2) Tumor variants with reduced sensitivity to immune effectors
3) Alteration of effector cell trafficking
B) Tumor variants that suppress the antitumor immune response
3) Infiltration of suppressor myeloid cells
4) Infiltration of T regulatory cells
5) Production of immunosuppressive factors
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Adapted from Drake et al. Adv Immunol. 2006;90:51-81.
CTLs
Tumor cell
membrane
Secretory
vesicle
Golgi
ER
Antigen
loss
↓ LMP2/7
subunits of
proteasome
↓ TAP
Loss of β2
microglobulin
Loss of
MHC
heavy chain
Diminished transport of MHC
I-peptide complexes
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Adapted from Zitvogel et al. Nat Rev Immunol. 2006 Oct;6(10):715-27.
CTLs TumorIFNγ
Granzyme B-
perforin
↓ IFNγ
receptor
↓ apoptosis:
↓ caspase 8
↑FLIP
↓ death receptors
↑ decoy receptors
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Motz et al. Immunity. 2013 Jul 25; 39(1): 61–73.
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Adapted from Berraondo P et al. Medicina Interna Farreras. XVII Edición
Tumor
TGF-β
IDO
T regulatory cellsMyeloid derived suppressor cells
Tryptophan
Kynurenines
PDL-1
PD-1
CTLA-4
CD-80
o CD-86T lymphocyte
T lymphocyte
Dendritic
cell
Tumor cell
T lymphocyte
NK cell
Dendritic
cell
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Mills KH et al. Nat Rev Immunol. 2004 Nov;4(11):841-55.
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Tumor associated
macrophages
Tumor associated
dendritic cellsMyeloid derived
suppressor cells
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Gabrilovich DI et al. Nat Rev Immunol. 2009 Mar;9(3):162-74.
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Gabrilovich DI et al. Nat Rev Immunol. 2009 Mar;9(3):162-74.
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Mantovani A et al. Trends Immunol. 2002 Nov;23(11):549-55.
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Tesone AJ et al. Front Immunol. 2013 Dec 10;4:435.
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Monjazeb AM et al. Front Oncol. 2013 Jul 26;3:197.
CTLs
NK
CD4+ T cell
MDSC
TAM
TADC
Treg
Cytokines, Co-inhibitory molecules and Enzymes
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Löb S et al. Nat Rev Cancer. 2009 Jun;9(6):445-52.
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Vasaturo A et al. Front Immunol. 2013 Dec 3;4:417.
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Akhurst RJ et al. Nat Rev Drug Discov. 2012 Oct;11(10):790-811.
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O`Garra A et al. Nat Rev Immunol. 2007 Jun;7(6):425-8.
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Chen DS et al. Nature 2017;541:321-330
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Whiteside TL et al. 2016 Clin Cancer Res 22; 1845-1855
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