11/12/2012
Disclosure
I am the inventor of technology referenced in this Gut-derived commensal bacteria presentation. Mayo Clinic has filed a non- provisional patent application for this technology, as therapy for autoimmune but the technology is not licensed and I have diseases in mice received no royalties.
Veena Taneja Department of Immunology and Rheumatology
Genetic Can Gut microbiome predict susceptibility to Predisposition Rheumatoid Arthritis ? HLA Class II DR*0401/DQ8
1. Genetic Complexity ? 2. Variability of diet and Sex Gut other ecological factors microbiota 3. Difficult to prove Causality versus effect
100,000,000,000,001 organisms
The Bugs Me Infections
Generation of HLA transgenic mice Gut feeling for joints
100 Transgenic mice DQ8 80 RA-Associated DRB1*0401 DRB1*0402 AE-/- DRB1*0401 60 AE-/- DQ8 40 RA-Resistant AE-/-DRB1*0402 20
Incidence arthritis of Incidence 0 1 2 3 4 5 6 7 8 9 10 11 0.4 Weeks post-immunization
0.3 60
+ve cont anti-CCP
0.2 40 O.D -ve cont 0.1 20
0 DQ8 B10 0 CIA+ CIA- Rheumatoid factor Ccp- cyclic citrullinated peptides Naive*0401 mice and *0402 mice differ in gut microbiome
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Genotype/commensals determine the gut immune system Can gut-derived Gram negative commensal act as an immunomodulatory agent? *0402F *0402M *0401M *0401F 20 Prevotella 15 Histicola *
* 10 * * Melanogenica 5
0
Prevotella (Bacteroidetes)- anaerobic gram negative
IL3
IL-5 IL-6
-5 IL-4
IFNg IL-22
IL-21 - human oral cavity and gut
Stat4
IL 23aIL
IL-17a
FoxP3 CCL20
-10 * ** IL12rb1
Fold Fold Regulation * -15 - Immune diversion -20 - Regulation -25
Oral treatment with P. Histicola modulates Collagen-induced arthritis in DQ8 mice P. Histicola is not pathogenic
100 CII+P. hist P hist 80 ChII CII+ P. melan 60
40
20
P. Melanogenica arthritis Percent incidence of incidenceof Percent 0 10 P histicola 1 2 3 4 5 6 7 8 9 10 DQ8 sham treated DQ8-P.hist 8 treated Weeks post Immunization DQ8- P.hist only 6 4
1.8 severity 2 5000 Anti-CII antibodies CII 1.5
4000 0
1.2 1 2 3 4 5 6 7 8 9 10 3000
O.D.0.9 cpm
2000 Weeks post Immunization
0.6 1000 0.3 Sham treated
0 0 CII+P hist P hist CII Pretreatment posttreatment
P. histicola treatment modulates immune P. Histicola treatment increases regulatory cytokines
response in the Gut
Jejunum
Sham Ileum Colon Duodenum Jejunum
Colon cytokines of Fold regulation P. Histicola Ileum Ileum treated Duodenum Jejunum
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P histicola treatment modulates systemic Oral treatment with P. histicola modulates peripheral immune response Immune response via regulatory DCs and Treg 1200 Med Control P histicola 1000 CII+ P. hist. CII+ Med 800 22 11 600
400
200 CD4/GITR Pg/ml 0
IL-1a IL-1bIL-12P40 IL-6 IL-17 TNF IFN 21 14
CD11c/CD103
10 6
CD4+ CD25+FoxP3+
Mucosal modulation of Arthritis Acknowledgments HLA Class II Genes Harvinder Luthra Eric Marietta
Environment Joseph Murray David Luckey *0402 Sex *0401 Susan Barton Ashu Mangalam Gut microbiome Dysbiotic gut microbiome Bacteroidetes:Firmicutes Bacteroidetes:Firmicutes Robin Patel Michele Smart Bifidobacterium sp. Clostridium like sp. Melisa Karau Marshall Behrens T T anti-inflammatory Treg microbiota Th1/Th17 Chella David Julie Hanosn T (symbiosis) Th2 Bryan White, UIUC Pro-inflammatory Microbiota Systemic immune response (Dysbiosis) Mucosal immunity
Can Gut microbiome predict susceptibility to Rheumatoid Arthritis ?
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Gut modulates systemic immune response and Sex-based OTUs in DRB1*0402 mice contributes to health and disease
1. Genetic Complexity 2. Variability of diet and other ecological factors 3. Difficult to prove Causality versus effect
DRB1*0401 renders sex bias and Gut flora of *0401 and *0402 mice Bifidobacterium sp. *0402 protects from arthritis 8% DQ8 Bifidobacterium Prevotella sp. sp. 6% 14% Verrucomicrobiu 100 0401 m sp. 4% DQ8 DR4.DQ8 Prevotella sp. DRB1*0401 12% 80 Clostridium sp. 0401.DQ8 14% DRB1*402 60 Porphyromonas sp. 14% 40 Parasporobactri um sp.
20 Kaistella sp. 6% Roseburia sp. 6% 16% 0 1 2 3 4 5 6 7 8 9 10 11 Phylogenetic Closest match in the RDP % ID Closest match in the nr/nt NCBI % ID % No. of times Affiliation environmental sequence database database detected and refseq_rna I in the data set 80 D 0401F 70 0401M Actinobacteria Bifidobacterium pseudolongum 99 Bifidobacterium pseudolongum 100 1 36,261 subsp. globosum strain JCM 5820 subsp. globosum strain 02-2 0 60 DQ8F NR_043441.1 AY166515.1 0 50 DQ8M Bacteroidetes Barnesiella intestinihominis YIT 84 Gram-negative 88 9 30,891 11860 strain YIT bacterium cL10-2b-4 9
Incidence of Incidence arthritis 40 NR_041668.1 AY239469.1 30 Bacteroidetes Barnesiella viscericola DSM 82 Gram-negative 87 9 35,585 20 18177 strain JCM 13660 bacterium cL10-2b-4 5 NR_041508.1 AY239469.1 10 Bacteroidetes Parabacteroides distasonis strain 83 Gram-negative bacterium cTPY-13 89 9 35,234 0 JCM 5825 AY239461.1 9 1 2 3 4 5 6 7 8 9 10 11 NR_041342.1 Firmicutes Allobaculum stercoricanis DSM 84 Bacterium HBND 87 8 34,042 13633 AY498748.1 9 Weeks post-immunization NR_042110.1
Arthritis-susceptibility is associated with loss of age and DRB1*0401 and *0402 differ in their gut microbiota sex driven differences in gut microbiota
R=0.14 R=.30 R=.43
R=.44 R=.04 R=.05
R= ANOSIM (analysis of similarities) Test
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*0401 mice have Clostridium-like species dominated guts
Jejenum
1.DQ8 (P hist ) 2. DQ8 (sham) 3. DQ8 (P. hist)
Peripheral antigen-specific response
25000 CIA+ Med CII 20000
spleen 15000
10000
cpm 5000
0 Bact+CII CII+Bact Bact CII
10000
9000
8000 CII
7000
6000
5000
4000
3000
2000
1000
0 Sham P hist CIA+ P hist CIA-
No response to type II collagen by Lamina Propria cells
Commensal bacteria may modulate disease by skewing Characterization of Regulatory T cells in Lamina Propria cells of cytokine and chemokine production DQ8 control and provetolla treated mice Pro-inflammatory
1200 Control 1000 Bacteria fed CD103 CD4+CD103+ CD4+FoxP3 CD8+FoxP3 27 800 21 42 49 M1 M1 600 Control M1
400 29 200 16 20 7 Treated 0 IL-1a IL-1b IL-6 IL-12P40 IL-17 TNF IFN Male
16 34 9 1000 30 Control 1.5 Treated M1 Pg/ml 800 Bacteria fed Anti-CII Female 1 600 0.5 400 0 200 CII CII+ P hist
0 IL-13 IL-10
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Immunomodulating effect of Prevotella in DQ8 mice
120 Sham CII/DQ8 100 DQ8-Med Fed P Hist 2 dose DQ8-P.histicola Fed 100 P Hist 3 dose 7000 80 DQ8-P.histicola without Antigen 80 6000 60 60 5000 40 40 4000
20 20
3000 0 P=.02 0 1 2 3 4 5 6 7 8 9 10 11 12 2000 1 2 3 4 5 6 7 8 9 10
10 of arthritis
1000 incidencePercent
8 0 B+CII spl1 B+CII spl2 CII+B+ spl1 CII+B+ spl2 B+CII LN1 B+ CII LN2 CII+ B+ LN1 CII+ B+ LN2 6 Weeks post-immunization 4 1000 2 900 1.8 Severity Severity of arthritis 0 1.5 800 1.2 1 2 3 4 5 6 7 8 9 10
700 0.9 3 Gp1- Bac prio to CII (B+CII) 15 CII Gp2- CII prior to bac (CII+B) 600 O.D. 0.6 0.3
500 CPM 10 10 0 400
300 5 Pretreatment posttreatment 200 Anti-CII antibodies 0 100 P.Hist+CII CII+P.Hist P.Hist CII 0 B+CII spl CD4+ +IR spl CII+B+ spl CD4+ + IR B+CII spl CD4+ + LP CII+B+ spl CD4+ + LP spl DC's DC's
Protocol CII Sera/P. Hist Sera P. Hist Day0 10 20 28 40 49 Lamina propria
CII+IFA
Sham P hist Bifido
21 23 48
Cd11bhi
M1 M1 M1 CD11c
13 4.2 6.4
CD11bl0 M1 M1 M1 +CD11c
Spleen
Gr-1 expression Sham P histicola Bifido Spleen lamina propria Sham-grey P hist- black 27 63 8.2 9.5 6 23 53 CD11blo
M1 M1 CD11bhi CD11c M1 M1 M1
80 93 2.2 76 1.7 2 CD11blo+CD11c 95 CD11bhi M1 M1 M1 M1 M1
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CD4+CD25+ FoXP3+ T reg cells
Sham P histicola Bifido
6.8 9.8
6.8 9.8 12 Spleen R12 R12 Spleen
Lamina 50 65 propria Lamina 50 65 80 propria R12 R12
Similarities and differences between Rheumatoid Gut permeability and MHC Arthritis and Collagen Induced Arthritis RA CIA a 120 b *0401 M *0401 F Clinical phenotype P<0.001 *0402 M *0402 F 110 Swelling + + 100 80 90 Deformities + + 60 70 P<0.04 P<0.03 40
Gender bias + + Hundreds
20 (Hundreds) 50 FlourescentUnits
Histopathology Fluorescent Units 0 Arthritic Naïve 30 Pannus formation + + <4mo >4 mo bone erosions + + Immune response CII reactive T cells + + Class II expression on T cells + + Autoantibodies Antibodies to CII + + Rheumatoid factor + + anti citrullinated peptide + +
Arthritis Onset, severity, Histopathology, Immunize with Systemic and gut type II collagen Immune response
Gavage with >10 million live P histicola or another commensal Intestine Duodenum Jejunum Ileum Cytokine Expression Quantitative Real Time PCR
Spleen Th17- IL-17, IL-6, IL-21 Th1- IFN , TNF, Tbet Th2- IL-4, IL-33 T reg-Fox P3, IL-10, TGF
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Commensal/mutualistic intestinal flora
1.4 60 anti-CCP 1.2 IgG-RF
1 40
0.8
0.6 20 O.D. 0.4
0.2 0 0 CIA+ CIA- DR4 DQ8 DQ8.DR4 Ccp- cyclic citrullinated peptides Rheumatoid Factor
8