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LYMPH NODE MESENCHYMAL STROMAL CELLS (LNMSC) REGULATE THE IMMUNE RESPONSE AGAINST LYMPHOMA
F C R S
DITID-‐ IRCCS and FCSR San Raffaele Division of Immunology
Transplants and Infec2ous Diseases Paolo Canevali
Caterina Camodeca Maria Raffaella Zocchi
UNIVERSITY of PISA DEPARTMENT of PHARMACY,
Elisa Nuti Armando Rossello Caterina Camodeca
IRCCS AOU San Mar2no-‐IST, UNIVERSITY of GENOA Unit of Molecular Oncology and Angiogenesis Department of Integrated Oncologic therapies Alessandra Musso Roberta Vené Alessandro Poggi Department of Pathology Annalisa Kunkl Jean-‐Louis Rave> Laboratory of Hematology and Clinical Oncohematology Silvia Catellani Ivana Pierri Marco Gobbi Department of Oncology, Biology and Gene2cs Sara Tavella
AIRC Compagnia di San Paolo
Are cytotoxic T cells present in lymphomas? Infiltration of CD8+ GrzB+ cells in the interfollicular spaces of FL lymph nodes.
Laurent C et al. Blood 2011;118:5371-5379
©2011 by American Society of Hematology
Granzyme B is a prognostic marker of PFS in FL. The graph shows
progression-free survival (PFS) in the 80 patients scored by IHC after R-
combined chemotherapy.
Blood, prepublished online October 7, 2014; Arne Kolstad, Shraddha Kumari, Mateusz Walczak, Ulf Madsbu, Trond Hagtvedt, Trond Velde Bogsrud, Gunnar Kvalheim, Harald Holte, Ellen Aurlien, Jan Delabie, Anne Tierens and Johanna Olweus. Sequen2al intranodal immunotherapy induces an2-‐tumor immunity and correlated regression of disseminated follicular lymphoma Scheme of treatment: Low dose rituximab+single dose 8Gy radiotherapy+immature DC+GMCSF Key points: 1) Local immunotherapy induced systemic responses in pa\ents with disseminated follicular lymphoma 2) Clinical responses correlated with systemic an\-‐tumor T cell immunity. Cumula2ve survival Pa2ents with immune response 0.65 on 30th month Pa2ents without immune response 0.0 on 30th month
NKG2D-‐MICA,B, ULBP1-‐6 CD160 -‐HLAC
CD16(FcγRIIIa)-‐IgG CD94/NKG2C,E-‐HLAE
CD27-‐CD70 KIR2DS2,3,4,5,-‐HLA-‐C? DNAM1-‐PVR, nec2n2
KIR3DL3, KIR2DL5A, 5B-‐? KIR2DS1-‐HLA-‐C
CD224(SLAMF4, 2B4)-‐CD48 SLAMF7(CS1)-‐SLAMF7(CS1)
NKp30 (CD337)-‐B7H6, BAT3, CMVp65, HS
NKp80-‐AICL (CLE2B) CD96-‐NECL5
PSGL1-‐L-‐selec\n SLAMF6 (NTBA)-‐SLAMF6 (NTBA)
NKp44 (CD336 )-‐viral H6, NKp44L(MLL5), PCNA , HS
CD100-‐CD72 NKp46 (CD335 )-‐viral H6, HS
NCAM (CD56)-‐NCAM (CD56) α4β1 – FN, VCAM1
an2-‐tumor effector lymphocytes (NK, NKT, Tγδ, CTLs)
tumor
microenvironment associated
target cells as tumor B cells,
MSC TAF, CAF,myoF,
fibrocytes, pericytes T and non-‐T cells MDSC, APC,
endothelial cells Treg
LAIR1 (CD305)-‐Collagen I, III, IV, XII Siglec 3,7,9-‐ sialic acid
KLRG1-‐cadherin
NKRP1A-‐CLEC2D (LLT1)
CD94/NKG2A-‐HLAE LIR1 (ILT2, LILRB1)-‐HLA-‐I
KIR2DL1,2,3-‐HLA-‐C KIR3DL1,2,3-‐HLA-‐A or B
KIR3DL3, KIR2DL5A, 5B-‐?
If the inhibi\ng signal prevails: no target cell lysis reduced cytokines
produc\on
If the ac\va\ng signal prevails: target cell
lysis, cytokine produc\on
adhesion ↑ [Ca++]i ↑ kinases ↑
adhesion ↑ [Ca++]i ↑ kinases ↑
?
?
CEACAM1 (CD66a)-‐CEACAM1 (CD66a)
LFA1-‐ICAM1,2,3,4
PECAM1(CD31)-‐PECAM1(CD31)/CD38
NK,γδT, αβT cell
IFN-γ, TNF-α
Cytolysis ADCC
TCR/self-HLA-I+Ag (TAA) PD1/PDL1, CTLA-4/B7 family members NCR/B7 family members/viral products Natural Cytotoxicity Receptors (NKp30, NKp44, NKp46) NKG2D/NKG2DL as ULBP-MICA/MICB Natural Killer group 2D protein interacts with UL16 binding protein or MHC-related protein A IRS/self-HLA-I Inhibitory Superfamily Receptors (KIR, CLIR, ILT) missing self hypothesis Activating isoforms of IRS? LAIR1/collagen 2B4/CD48 DNAM1/PVR-nectin family members
Anti-tumor effector cells Natural Killer, γδT, CD8+αβT lymphocytes
Lymph node pluripotent MSC CD90+CD105+CD73+
Sox2+ CD146+ CD40+ TGII+ CL+LN-‐
B7-‐1-‐B7-‐2-‐ B7-‐H1+ Erp5+, ADAM10/17+
MDSC
FDC
NK Tumor B
CTL B
Tumor B
Tumor B
Tumor B
Tumor B
Tumor B
Tumor B
FDC
MSC
MSC
Lymphoma microenvironment
HL and NHL NKG2D-‐NKG2DL Erp5, ADAM10-‐17 NB-‐Ps γδ T cellls
γδ T cells
MSC
ERp5 is a disulfide isomerase Disulphide bonds exchange
Release of MICA/B-ERp5 complexes
ADAM10 is a disintegrin and metalloproteinase
MICA/B ULBP4-5 ULBP 1-3, 6 α1 α1 α1 α2
α2 α2α3
TM GPI TM
α1 α2 α3
sULBPs
sMICA/B
α1 α2 α1 α2
ERp5
ERp5
sNKG2DLs bind NKG2D
Inhibiting target cell recognition
X
Mesenchymal Stromal Cells
NKG2DL, ERp5 and ADAM10 expression in cHL.
C
0 1 2 3 4 5 6 7 8 9 10
mRN
A (ΔC T)
cHL Stromal areas (n=20) cHL Parenchyma(n=20)
B TG cHL NS CTR cHL NS
TG cHL MC CTR cHL MC
i ii
iii iv
0 2 4 6 8 10
mRN
A (ΔC T) Healthy LN
Ai cHL Nodular Sclerosing (NS, n=15)
A
0 1 2 3 4 5 6 7 8 9 10
mRN
A (ΔC T)
cHL Mixed Cellularity (MS, n=9)
Microdissec\on
TG staining= Stroma
TG staining= Stroma
0 1 2 3 4 5 6 7 8 9
10
mRN
A (ΔC T)
HL NS (n=14) HL MC (n=10) i
A HL S (n=10) HL P (n=10)
0 1 2 3 4 5 6 7 8 9
10
mRN
A (ΔC T)
ii
B
0
2
4
6
8
10 Healthy LN
mRN
A (ΔC T)
TGFβ transcription is higher in HL than in healthy LN and is prevalent in the stromal areas
MICRODISSECTION
stromal areas are identified by
transglutaminase
MIC-‐A ULBP3 A
ERp5 ADAM10
i ii
iii iv
B
ERp5 ADAM10
CTR CD30 i ii
iii iv
NKG2DL, ERp5 and ADAM10 expression in cHL ERp5 is expressed at the tumor site both by mesenchymal stromal cells and
Reed Sternberg cells
Mesenchymal stromal cells Reed Sternberg cells
100% MFI 147
100%
MFI 315
100%
MFI 116
100% MFI 151
87% MFI 65
90% MFI 62
90% MFI 47
100% MFI 315
100% MFI 116
97% MFI 136
Cell nu
mbe
r
Log red fluorescence intensity (a.u.)
HLA-‐I CD105 CD73 CD90
VIMENTIN COLLAGEN P4H TGII 0 20 40 60 80 100
MFI RAT
IO
B
0 5 10 15 20
MFI RAT
IO
39% MFI 6
R4
44% MFI 27
91% MFI 23
90% MFI 25
44% MFI 18 Ce
ll nu
mbe
r
2% 8% 42% MFI 20
13%
Log red fluorescence intensity (a.u.)
ULBP1 MIC-‐A ULBP2 ULBP3
CytoULBP1 CytoULBP2
39% MFI 9 R4
44% MFI 27
91% MFI 23
44% MFI 18
CytoULBP1 CytoULBP2
R4
44% MFI 27
91% MFI 23
44% MFI 18
CytoULBP1 CytoULBP2 CytoULBP4 CytoULBP3
ULBP4
1%
CytoMIC-‐A
i A
0 20 40 60 80
100
MFI RAT
IO ii
iii iv
i
iii
ii
0 5 10 15 20
MFI RAT
IO
iv
Phenotype and NKG2DL defective expression in cultured LNMSC from cHL.
NKG2DL, ERp5 and ADAM10 are expresssed in cultured LNMSC from cHL.
B
0 0.2 0.4 0.6 0.8 1 1.2
1.4 1.6 1.8 2 2.2
soluble molecule (ng/ml)
Log red fluorescence intensity (a.u.)
R4
33% MFI 10
93% MFI 32
1% 1%
R4
Cell nu
mbe
r
ERp5
CytoERp5 CytoADAM10
ADAM 10
A
0 2 4 6 8 10
ERp5 ADAM10
MFI RAT
IO 0 2 4 6 8 10
MFI RAT
IO
ERp5 ADAM10
iii
iv
iii
ERp5 and ADAM10 are expressed in the cytoplasm of cultured LNMSC from cHL, whereas NKG2DL are shed in the SN.
A
iv
ii i
iii
Log red fluorescence intensity (a.u.) Log far red
fluo
rescen
ce intensity
(a.u.)
NKG2DPE
CD8A
PC
Ex-‐vivo +IL15
+IL15+LNMSC +IL15+LNMSC+αTGFβ
B
LN + + + + IL15 -‐ + + -‐
LNMSC -‐ -‐ + -‐ an\-‐TGFβ -‐ -‐ -‐ +
0 25 50 75 100 125
CD8+NKG
2D (M
FI)
i
Vδ1+NKG
2D (M
FI)
0 25 50 75 100 125 ii
LN + + + + IL15 -‐ + + -‐
LNMSC -‐ -‐ + -‐ an\-‐TGFβ -‐ -‐ -‐ +
C
NKG
2D m
RNA (ΔC T) CD8αβ LN cells
Vδ1 LN cells
0 2 4 6 8 10
LN + + + + IL15 -‐ -‐ + +
LNMSC -‐ + -‐ +
Co-culture with LNMSC inhibits the upregulation of NKG2D induced by IL15 on γδ and αβ CD8 T cells
The inhibitory effect of LNMSC is reverted by anti-TGFβ mAbs LNMSC produce and release TGFβ
Autologous LNMSC + auto αβ or γδ T
D
0 100 200 300 400 500
TGFβ pg/ml ii
cytoTGF β
56%
MFI 18
LNMSC2
Cell nu
mbe
r i
A
medium +IL15
LNMSC+IL15 LNMSC
0
30
60 90
120 150
12h day
2 4 6 8
Vδ1 T cells
0 30 60 90
120 150 180
NKG
2D
expressio
n MFI
12h day
2 4 6 8
CD8 T cells i
ii
p<0.9770 C p<0.0002
p<0.0726
p<0.0001
0
50
100
150
10:1 20:1 40:1 80:1
p<0.9770 B p<0.0002
p<0.0726
p<0.0001
Vδ1 T cells : LNMSC ra2o
Vδ1 T cells only
basal 10:1 20:1 40:1 basal
0
50
100
150
CD8:LNMSC ra2o CD8 only
10:1 20:1 40:1 80:1
p<0.0001 p<0.0001
p<0.0167 p<0.637
NK
G2D
exp
ress
ion
MFI
0
50
100
150
CD8 only
10:1 20:1 40:1 80:1
p<0.0001 p<0.0001
p<0.0167 p<0.637
i ii
LNMSC mediated inhibition of NKG2D induced by IL15 on γδ and αβ CD8 T cells is ratio-dependent
The ratio between LNMSC and γδ or αβ CD8 T cells is important for the
inhibition of NKG2D expression
Inhibition is evident from day 4 of culture
RS773 6% MFI 24
NKG2D Fc Ce
ll nu
mbe
r
0 10 20 30
40 50
% CELL LYSIS
LNMSC αNKG2D
- -
+ -
+ +
- +
A
*
γδ T cells can kill RS773 lymphoma
cells expressing MIC-A
and ULBP3 via NKG2D
LNMSC inhibit the ability of γδ T cells to kill RS773 or C1R lymphoma cells
B RS773+VPA 20% MFI 22
NKG2D Fc
Cell nu
mbe
r
LNMSC αNKG2D
- -
+ -
+ +
- +
0
10 20
30 40
50
%CE
LL LYSIS
* ***
RS773
Surface ADAM10 ADAM10 shedding
ADAM10 shedding
Yellow square in B A B
Lymphoma cell
Treg cells
FDC mesenchymal stromal cell
l Th1 cell
NHL lymphoma microenvironment
Lymph node
Rela\ve mRN
A expressio
n
0
2
4
6
8
10
12
14
TGFbeta IL10 IFNgamma TNFalpha
Serie1
Serie2
Lymphomas non neoplas\c LN
IFNγ TNFα
IL10 TGFβ
Differentiation potential of LNMSC (alizarin: bone; oil red: adipocytes)
LN1 LN2 LN3 LN4 LN5 LN6 LN7 LNMSC expressed some characteristics of stem cells
Surface markers
NEG HLAI
ICAM1 CD146 CD90
CD73 CD105
PVR
Log Fluorescence intensity (a.u.)
Cell
num
ber
Cytoplasmic markers
NEG Collagen P4H
NEG ALP BSP Osteocalcin
Vimentin
Log Fluorescence intensity (a.u.)
Cell
num
ber
ACETYL-CoA CoA-SH
Acetoacetyl-CoA
Acetil-CoA
HYDROXYMETHYL GLUTARYL- COA
MEVALONATE 2NADPH+2H
2NADP+CoA-SH
5-Pyrophosphomevalonate
Dimethylallyl pyrophosphate
Geranyl pyrophosphate
Farnesyl pyrophosphate
Squalene
Squalene 2,3 epoxide Lanosterol CHOLESTEROL
Farnesyl pyrophosphate
+NADPH+H
2PPi+NADP
O2+NADPH+H
H2O+NADP
Isopentenyl pyrophosphate
PPi
Isopentenyl pyrophosphate
PPi
ATP ADP
ATP
ADP
ATP
ADP+Pi+CO2
Cholesterol synthesis fluvastatin
CoA-SH
geranylgeranyl pyrophosphate
Heme A, Dolichol,
Ubiquinon
Prenylated proteins (Rho,
Ras GTP-binding proteins
HMG-CoA reductase
Bisphosphonates
Zoledronic acid
19 reactions
Manumycin A, FTI and GTI inhibitors
ACAT-1,2 inhibitors (Avasimibe, K604,
Pyripyropene)
Acyl-CHOLESTEROL
TGFβ pg/ml/1
06 cellsl
i
0
50
100
150
200 C
ii
IL15 pg/ml/1
06 cells
0
40
60
80 100
20
* *
IL15
LNMSC
mRN
A (ΔC T)
0 2 4 6 8 10 12 *
B
-‐ -‐ -‐
-‐ -‐ +
+ + -‐
+ -‐ +
-‐ + -‐
Vδ2 Pam5 Zol1
+ -‐ -‐
TGFβ
-‐ -‐ -‐
-‐ -‐ +
+ + -‐
+ -‐ +
-‐ + -‐
Vδ2 Pam5 Zol1
+ -‐ -‐
** mRN
A (ΔC T) *
0 2 4 6 8 10 12 A LNMSC
*
IL10
* **
mRN
A (ΔC T)
0
2 4
6 8
10
12 D
-‐ -‐ -‐
-‐ -‐ +
+ + -‐
+ -‐ +
-‐ + -‐
LNMSC Pam5 Zol1
+ -‐ -‐
Vδ2 *
TNFα
mRN
A (ΔC T)
0
2 4
6 8
10
12 E Vδ2
-‐ -‐ -‐
-‐ -‐ +
+ + -‐
+ -‐ +
-‐ + -‐
LNMSC Pam5 Zol1
+ -‐ -‐
* IFNγ
mRN
A (ΔC T)
0
2 4
6 8
10
12 F
-‐ -‐ -‐
-‐ -‐ +
+ + -‐
+ -‐ +
-‐ + -‐
LNMSC Pam5 Zol1
+ -‐ -‐
Vδ2
LNMSC LNMSC
N-BPs prevent TGFβ and enhance IL15 production in LNMSC…
…reduce IL10 and stimulate TNFα or IFNγ in Vδ2 T lymphocytes
H
TNFα
pg/ml/1
06 cells **
Vδ2 I
IFNγ pg/m
l/106 cells
0
200
300
400
500
100
Vδ2
+LNMSC
*
+LNMSC
**
0
200
300
400
500
100
vs P815
**
% Cytotoxicity
*
0
10
20
30
40
50
60 *
Vδ2 E:T 10:1 Vδ2+LNMSC A
-‐ -‐ -‐ -‐
NKG2D CD16 Pam5 Zol1
+ -‐ -‐ -‐
+ -‐ -‐ -‐
+ -‐ -‐ +
-‐ + -‐ -‐
-‐ + -‐ -‐
-‐ -‐ -‐ -‐
+ -‐ + -‐
+ -‐ + -‐
+ -‐ -‐ +
***
B vs C1R
-‐ -‐ -‐
-‐ + -‐
% Cytotoxicity
0 10 20 30 40 50
60
*
*
Vδ2 E:T 10:1 Vδ2+LNMSC
RTX Pam5 Zol1
-‐ -‐ -‐
-‐ + -‐
+ -‐ -‐
+ -‐ -‐
-‐ -‐ +
-‐ -‐ +
i
vs C1R-‐MICA
% Cytotoxicity
0 10 20 30 40 50
60
**
Vδ2 E:T 10:1 Vδ2+LNMSC
*
*
RTX Pam5 Zol1
-‐ -‐ -‐
-‐ -‐ -‐
+ -‐ -‐
+ -‐ -‐
-‐ -‐ +
-‐ + -‐
-‐ + -‐
-‐ -‐ +
ii
LNMSC Pam5 Zol1
+ -‐ -‐
-‐ -‐ -‐
NKG
2D m
RNA (ΔC T)
0 2 4 6 8 10
+ + -‐
12
+ -‐ +
Vδ2
*
C **
D
NKG2D
Med
ium
+ Pam5
+ Zol1
NKG2D
CD16
NKG2D
Neg Ctr Vδ2 +LNMSC Vδ2
Med
ium
i
γδ T N
KG2D
+ (MFI)
0 25 50 75 100 125
LNMSC -‐ + + + +
an\-‐TGFβ -‐ -‐ -‐ -‐ +
*
**
Pam5 -‐ -‐ + -‐ -‐ Zol1 -‐ -‐ -‐ + -‐
ii Ce
ll nu
mbe
r
Log green fluo intensity (a.u.)
ADAM10 inhibitors
MSC B7-‐H1 PD-‐L1
X
NKG2DL
TGFβ, IDO and PGE2 synthesis inhibitors
Inac\va\on/elimina\on
of MSC by ADCC or CDC triggered with an\body specific
to lymphoma-‐associated MSC markers
An\body to B7-‐H1 (PD-‐L1) to avoid inhibi\on of T cells upon the
interac\on with the nega\ve regulator PD1
Inac2va2on of ADAM10 to reduce the release of NKG2DL
an\-‐ PD-‐L1 ab
TGFβ
IDO
PGE2
MSC
N-‐BPs zoledrobnate
TGFβ IDO
PGE2
IL15
TGFβ IDO
PGE2 IL15
Priming with N-‐BPs Iden2fica2on of other drugs to shic immunosuppression
to immune s2mula2on (induc2on of CD277 (BTN3A1) expression to trigger
Vδ2+ T cells)
A
B
ADAM10
CTL PD-‐1
FcγR+ effector cell
an\-‐MSC Ab