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SUPPLEMENTARY INFORMATION SUPPLEMENTARY FIGURES a b c e f g h d Supplementary Figure 1. mRNA expression of PKC isoforms in human whole blood. mRNA expression of various isoforms of PKC in TB progressors, expressed as log2 fold change over matched controls, from ACS group. The dotted line represents the mean log2 fold change, nonlinear spline function in 46 progressors and 107 healthy QuantiFERON positive controls. The blue shaded
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Page 1: media.nature.com › original › nature-assets › mi … · Web viewData is analysed using univariate and multivariate statistical techniques (PCA powers > 0.5, PLS-DA VIP >

SUPPLEMENTARY INFORMATION

SUPPLEMENTARY FIGURES

a b c

e f

g h

d

Supplementary Figure 1. mRNA expression of PKC isoforms in human whole

blood. mRNA expression of various isoforms of PKC in TB progressors, expressed

as log2 fold change over matched controls, from ACS group. The dotted line

represents the mean log2 fold change, nonlinear spline function in 46 progressors

and 107 healthy QuantiFERON positive controls. The blue shaded area represents

99% confidence intervals. (a) PKCα, (b) PKCβ, (c) PKC, (d) PKC, (e) PKC, (f)

PKC, (g) PKC and (h) PKC.

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a b c

d

0

1.010 5

2.010 5

3.010 5

4.010 5

5.010 5

**

Lesi

on A

rea

( m

2 )

Tat Control Tat δV1.1

1.0

1.2

1.4

1.6

1.8

2.0

2.2

Lung

wei

ght i

ndex

*

Tat controlTatV1.1

Gating Strategy for myeloid cell populations in the lungs

Neutrophils

Alveolar Mphs

CD11b+ MHCII+ Mphs

CD11c+ MHCII+ DCs

Supplementary Figure 2. A peptide inhibitor of PKCδ increased inflammation

in wild-type mice. Following infection with 350 CFU of Mtb, mice were treated with

TatVδ1.1, a PKCδ-specific peptide inhibitor (3 mg/kg) for three times a week via

intraperitoneal injection for 5 weeks. Mice were then sacrificed to determine (a) lung

weight index, a proxy of inflammation, (b-c) H&E stained lung sections and

subsequent quantification of lesion area. Results are mean ± SEM of 9-10

mice/group and analysed by student t-test, * p < 0.05, ** p < 0.01 versus Tat control.

Gating strategy to define (d) alveolar macrophages, neutrophils and (e) activated

macrophages and dendritic cells in the lungs of Mtb-infected mice.

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Act Mph DCs Neutrophils0

1

2

3

4

*

**%

cell

pop

ulat

ions

B cells CD4 CD80

10

20

30

40

50

**

*

% c

ell p

opul

atio

ns

B cells CD4 CD80

10

20

30

40

% c

ell p

opul

atio

ns

Act Mph DCs Neutrophils0.0

0.1

0.2

0.3

0.4

0.5

% c

ell p

opul

atio

ns

a b

c d

e f

8 w

eeks

4 w

eeks

Act Mph DCs Neutrophils0.0

0.1

0.2

0.3

0.4

0.5

*

Cell

Num

bers

(x10

6 ) *

B cells CD4 CD80

2

4

6

8

Cell N

umbe

rs (x

106 )

Act Mph DCs Neutrophils0.00

0.02

0.04

0.06

Cell

Num

bers

(x10

6 )

B cells CD4 CD80

1

2

3

4

5

6

Cell N

umbe

rs (x

106 )

g h

Lymph Nodes

Supplementary Figure 3. Immune cell populations in the lymph nodes of

PKCδ-/- mice following Mtb infection. Single cell suspension of thoracic lymph

nodes was analyzed for percentage and total cell numbers of immune cell

populations using FACS at 4 (a-d) and 8 (e-h) weeks after infection with 1000 CFU

of Mtb. Data are represented as mean ± SEM of n = 4-5 mice/group. Data is

analyzed using unpaired, student t-test, * p < 0.05, ** p < 0.01, *** p < 0.001, versus

WT control mice. Surface markers and gating strategy of different cell populations

Page 4: media.nature.com › original › nature-assets › mi … · Web viewData is analysed using univariate and multivariate statistical techniques (PCA powers > 0.5, PLS-DA VIP >

were determined as in the main manuscript and in supplementary figure S2

respectively.C

FU /

2x10

5 BM

DM

Medium

Oleic A

cid

Nat-LDLs

Palmitic

Acid0

20000

40000

60000

80000 WT PKC -/-

* *****

Nitr

ic O

xide

( M

)

Medium

Oleic A

cid

ox-LDLs

Nat-LDLs

0

30

60

90

120

*** ****

****

*

a b

05000

1000015000200002500030000350004000045000

**ControlPKC siRNA

4hpi 48hpiC

FU /

1x10

5 BM

DM

c d

0 4 12 240.0

0.5

1.0

1.5

2.0

Prk

cd F

old

Cha

nge

*** ***

hrs post Mtb

Oil

Red

O(O

.D.4

90nm

)

Medium

Oleic A

cid

Ox-LDLs

Nat-LDLs

Palmitic

Acid0.0

0.1

0.2

0.3

0.4

****

e

Supplementary Figure 4. PKCδ expression in HN878 infection, knockdown of

PKCδ in wildtype macrophages and effect of saturated and unsaturated fatty

acid on PKCδ-/- macrophages. (a) BMDMs were infected with an HN878 strain of

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Mtb to confirm CAGE expression profile (Figure. 6A) by quantitative RT-PCR. (b)

BMDMs were transfected with 25nM anti-PKCδ siRNA using Lipofectamine (2000) in

the Opti-MEM medium for 72 hours. Cells were then washed and infected with Mtb

(MOI=5) for four hours to determine growth at indicated time points. (c-e) BMDMs

from wild-type and PKCδ-/- mice were pretreated with either oleic acid, palmitic acid,

native-LDLs, ox-LDLs or left untreated overnight. Cells were then infected with Mtb-

containing medium with or without above mentioned fatty acids, native LDLs and ox-

LDLs for 3 days to determine (c) mycobacterial burden, (d) nitric oxide production

and (e) lipid accumulation by quantifying absorbance of Oil red O at 490nm. Data are

represented as mean ± SEM of (a) three and (b, c-e) two independent experiments,

Data is analyzed using unpaired, student t-test, * p < 0.05, ** p < 0.01, *** p < 0.001,

**** p < 0.0001versus WT control macrophages.

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g/L

Arachidonic

acid

-Linolen

ic ac

id

Palmitic

acid

Behen

ic ac

id

Cervonic

acid (D

HA)

Timnodonic

acid (E

PA)0.00.20.40.60.81.01

2345

20

40

60 WTPKC -/-

g/L

0.00.20.40.60.81.0

123455

10152025

*

** **

a b

c d

g/L

0.00.10.20.30.4

12345

1020304050 WT 70CFU

WT 1000CFU

e

ng/m

l

IL-12p40

IFN-IL-1a IL-1b IL-6

0

1

2

35

10

15

20 WT-70 CFUWT-5000 CFU

*

*

*

*

f

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Supplementary Figure 5. Serum fatty acids by metabolic analysis following

low-dose (70CFU) of Mtb infection. (a-b) PCA plots with variation in each

component are indicated in the parenthesis at 4 weeks and 8 weeks after infection

(70 CFU). (c-d) Serum levels (µg/L) of selected host-protective (arachidonic acid, α-

linolenic acid and palmitic acid) and detrimental fatty acids (behenic acid, DHA and

EPA) during Mtb infection. (e) Differences in fatty acids was not a function of

bacterial loads in WT mice, as shown at different Mtb infection dose. (f) Production

of inflammatory cytokines in the lungs of WT mice is indeed a function of bacterial

loads. Data are represented as mean ± SD of n = 5 mice/group. Data is analysed

using univariate and multivariate statistical techniques (PCA powers > 0.5, PLS-DA

VIP > 1.0, effect size > 0.8, and student t-test p < 0.05) versus WT control mice.

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METHODS

RNA-Seq data from ACS cohort

Whole blood RNA-Seq data from the Adolescent Cohort Study1 was downloaded

from the Gene Expression Omnibus (Series GSE79362, primary samples) and

aligned to the hg19 human genome using gsnap2 as in the original study.1

Normalized gene-level expression estimates were derived from mapped read pairs

following the procedure implemented in.3 Briefly, mapped read pairs were assigned

to genes by collapsing all transcripts into a single gene model and counting the

number of reads that fully overlap the resulting exons using htseq (v.0.6.0)4 with

strict intersection and including strand information. Gene models for protein-coding

genes were downloaded from Ensembl (GRCh37.74). Reads that mapped to

multiple locations were only counted once and those mapping to ambiguous regions

were excluded. Log2-transformed count values normalized by adjusted library counts

were computed using the cpm function of the edgeR package.5

Metabolic analysis of serum

Chromatographic analyses of the derivatized samples were performed using a

Pegasus GC x GC-TOFMS (Leco Corporation), utilizing an Agilent 7890A GC

(Agilent) coupled to a time of flight mass spectrometer (TOFMS) (Leco Corporation)

and a Gerstel Multi-Purpose Sampler (MPS) (Gerstel GmbH & co. KG) as described

previously6, with minor modifications. This included that a split ratio of 1:2 was used,

a Restek Rxi-17 (1 m, 0.25 mm i.d., 0.25 mm d.f.) column for the second dimension

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separation, and the secondary oven programmed with an offset of +15°C, increasing

at 4.5°C per min to a final temperature of 300°C. Cryogenic modulations and a hot

pulse of nitrogen gas of 0.5s, every 3s was used to control the effluent emerging

from the primary column onto the secondary column. Detection was achieved by

using MS detection in full scan mode (m/z 50-800). Leco Corporation ChromaTOF

software (v4.5) was used for peak finding and mass spectral deconvolution at an S/N

ratio of 50, with a minimum of 2 apexing peaks. Peak identification and alignment

was done as previously described.6 Prior to statistical data analysis, a standard

metabolomics data clean-up procedure was applied. All compounds were normalized

relative to the internal standard by calculating the relative concentrations of each.

Following this, variables showing no variation between the groups were removed,

and a data filter was applied to each variable to eliminate those with more than 50%

zero values in each group.7 Auto-scaling was performed across the entire dataset to

place all metabolites on equal footing.8 Various multivariate (principal components

analysis (PCA);9 partial least squares–discriminant analysis (PLS-DA)6 and

univariate (effect sizes; unpaired t-test)10 biostatistical analyses were applied using

Matlab with Statistics and PLS Toolbox Release (2012).

Treatment of mice with PKCδ-specific peptide inhibitor

Lyophilized Tat control and TatVδ1.1 peptides were reconstituted in sterile saline

solution. Aliquots of these peptides were stored at -80°C. Wild-type mice were

infected with 350 CFU of Mtb via intranasal challenge. After 2 days of infection, mice

were then injected three times a week with 3 mg/kg of TatVδ1.1 peptide inhibitor via

intraperitoneal route for 8 weeks. Mice were then sacrificed to determine parameters

for lung inflammation.

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Transfection of anti-PKCδ siRNA in primary macrophages

Macrophages were transfected with complex of 25nM on-target plus (OTP) siRNA

against PKC-delta (Dharmacon) and Lipofectamine 2000 (Molecular Probes,

Invitrogen) in the Opti-MEM medium for 72 hours. Macrophages were then infected

with Mtb at MOI of 5 for four hours at 37C and bacterial growth was determined at 4

and 48 hours post-infection as described previously.11

Primers

The primer sequences were used for qRT-PCR were as follows:

Gene Name Primer Sequence

Mouse Prkcd forward 5’-TGC GCA TCT CCT TCA ATT CC-3’

Mouse Prkcd reverse 5’-AGC GCC TTC ATA GAT GTG GG-3’

Mouse Hprt forward 5’-GTT GGA TAT GCC CTT GAC-3’

Mouse Hprt reverse 5’-AGG ACT AGA ACA CCT GCT-3’

Human PRKCD forward 5’-TGT GCC GTG AAG ATG AAG GAG-3

Human PRKCD reverse 5’-TAG ATG TGG GCA TCG AAC GTC-3’

Human HPRT1 forward 5’-AGG CGA ACC TCT CGG CTT T-3’

Human HPRT1 reverse 5’-AAG ACG TTC AGT CCT GTC CAT-3’

Statistical analysis

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For RNA-seq data analysis, gene-level log2 fold changes comparing each

progressor sample to the average of demographically matched control samples were

computed using the Adolescent Cohort Study metadata provided in1, and assigning

Time to Diagnosis values for each sample according to the original definitions. The

gene expression fold changes for all progressor samples were modeled as a

nonlinear function of Time to Diagnosis for the entire population using the smooth

spline function in R with three degrees of freedom. Ninety-nine percent confidence

intervals for the temporal trends were computed by performing 2000 iterations of

spline fitting after bootstrap resampling from the full dataset.

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REFERENCES

1. Zak DE, Penn-Nicholson A, Scriba TJ, Thompson E, Suliman S, Amon LM et al. A blood RNA signature for tuberculosis disease risk: a prospective cohort study. Lancet 2016.

2. Wu TD, Nacu S. Fast and SNP-tolerant detection of complex variants and splicing in short reads. Bioinformatics 2010; 26(7): 873-881.

3. Hoft DF, Blazevic A, Selimovic A, Turan A, Tennant J, Abate G et al. Safety and Immunogenicity of the Recombinant BCG Vaccine AERAS-422 in Healthy BCG-naive Adults: A Randomized, Active-controlled, First-in-human Phase 1 Trial. EBioMedicine 2016; 7: 278-286.

4. Anders S, Pyl PT, Huber W. HTSeq--a Python framework to work with high-throughput sequencing data. Bioinformatics 2015; 31(2): 166-169.

5. McCarthy DJ, Chen Y, Smyth GK. Differential expression analysis of multifactor RNA-Seq experiments with respect to biological variation. Nucleic Acids Res 2012; 40(10): 4288-4297.

6. du Preez I, Loots DT. New sputum metabolite markers implicating adaptations of the host to Mycobacterium tuberculosis, and vice versa. Tuberculosis (Edinb) 2013; 93(3): 330-337.

7. Smuts I, van der Westhuizen FH, Louw R, Mienie LJ, Engelke UFH, Wevers RA et al. Disclosure of a putative biosignature for respiratory chain disorders through a metabolomics approach. Metabolomics 2013; 9(2): 379-391.

8. van den Berg RA, Hoefsloot HC, Westerhuis JA, Smilde AK, van der Werf MJ. Centering, scaling, and transformations: improving the biological information content of metabolomics data. BMC Genomics 2006; 7(1): 1-15.

9. Brereton RG. Chemometrics. Data analysis for the laboratory and chemical plant. Journal of Chemometrics 2003; 17: 360-361.

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10. Ellis SM, Steyn HS. Practical significance (effect sizes) versus or in combination with statistical significance (p-values) : research note. vol. 12, 2003, pp 51-53.

11. Parihar SP, Guler R, Khutlang R, Lang DM, Hurdayal R, Mhlanga MM et al. Statin therapy reduces the Mycobacterium tuberculosis burden in human macrophages and in mice by enhancing autophagy and phagosome maturation. J Infect Dis 2014; 209(5): 754-763.


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