Supplemental Figures and Supplemental Methods Section:

Supplemental Figure 1: Global deletion of protein tyrosine phosphatase 1B (PTP1B-/-) results in

shortened lifespan and splenomegaly. (a) Survival curve of male global PTP1B knockout mice

(PTP1B-/-) and wild type controls (PTP1B+/+). PTP1B-/- mice have a significantly shorter life span

(p<0.0001) with a median survival of 76 weeks compared to PTP1B+/+ mice, whose median survival could not be calculated as more than 50% of mice survived the predetermined census period (n=40

PTP1B-/- male mice and 22 PTP1B+/+ male mice). (b) PTP1B-/- female mice have a significantly shorter lifespan (p<0.0001) when compared to PTP1B+/+ controls with a median survival time of 64 weeks in

comparison to 90 weeks in control mice (n=23 PTP1B-/- female mice versus 17 PTP1B+/+ female mice).

(c) Global deletion of PTP1B in results in splenomegaly in PTP1B-/- mice (n=8/genotype) (p<0.01),

with a two fold increase in spleen weight at the time of death. (d) Representative images of

splenomegaly and lymph node enlargement in PTP1B-/- mice in comparison to control wild type and

PTP1B heterozygous mice (PTP1B+/-) littermates. (e) Survival curve of male global PTP1B knockout

mice (PTP1B-/-) and wild type controls (PTP1B+/+) expressed as percent healthy, sick or dead at 9-14

months of age versus 15-20 months of age. (f) Survival curve of female global PTP1B knockout mice

(PTP1B-/-) and wild type controls (PTP1B+/+) expressed as percent healthy, sick or dead at 9-14 months of age versus 15-20 months of age.

Supplemental Figure 2: Development of leukaemia is associated with protein tyrosine phosphatase 1b (PTP1B) deletion efficiency and time. (a) PTP1B and GAPDH bone marrow derived macrophages (BMDM) protein levels from PTP1Bfl/fl, LysM PTP1B+/- and LysM PTP1B-/- mice; LysM

PTP1B-/- mice have the highest deletion efficiency (100%) with no detectable protein, and LysM

PTP1B+/- mice have a varying deletion efficiency from 50-80% (n=10/genotype). (b) Quantification of

PTP1B protein levels relative to GAPDH in BMDM in PTP1Bfl/fl mice (black), LysM PTP1B+/- (grey), protein was not detectable in LysM PTP1B-/- mice. Both genotypes, LysM PTP1B+/- and LysM PTP1B-/-

had a significant decrease in PTP1B expression in comparison to PTP1B+/+ mice (p<0.001) (c) 100X magnification of blast cell population in blood, representative images are shown, cells have a high

nuclear to cytoplasm ratio and display some nuclear membrane folding. (d) The number of blast cells

present in PTP1Bfl/fl mice (black) and LysM PTP1B+/- mice peripheral circulation as determined by blood film differentials, there was no statistical difference between PTP1B+/+ and LysM PTP1B+/- mice

(n=12/genotype). (e) White blood cell populations in the peripheral circulation of 9 month old

PTP1Bfl/fl mice (black) and LysM PTP1B-/- mice (grey) as determined by blood film differential counts.

LysM PTP1B-/- have a substantial blast cell population in the circulation of around 10% which is absent in PTP1B+/+ mice (p<0.001) (n=12/genotype). The increase in blast cell population is time dependent, with an (f) increase to 40% at 18 months of age in peripheral circulation of 18 month old

PTP1Bfl/fl mice (black) and PTP1B-/- mice (grey), (n=12 PTP1B+/+ mice and 4 LysM PTP1B-/- mice, this is

due to early death of LysM PTP1B-/- mice on the study).

Supplemental Figure 3: LysM PTP1B-/- mice develop splenomegaly, hepatomegaly and tumours.

(a) Representative post-mortem photograph of LysM PTP1B-/- mouse with large extranodal tumour.

(b) 40x histology using haemotoxylin and eosin (H&E) staining of solid tumours in LysM PTP1B-/- mice from various locations, clockwise; top left - attached to the small intestine, top right – back of the neck, bottom right – hip joint of the right hind leg, bottom left – lower back. Tumours consist of pleomorphic cells with positive evidence of fibrosis. (c) 100x magnification of tumour cells from

LysM PTP1B-/- solid tumours stained with H&E. Large pleomorphic cells with prominent nucleoli are

pictured, many with wrinkled nuclear membranes.

Supplemental figure 4: Hepatic microarray analysis from LysM PTP1B-/- and PTP1Bfl/fl mice

A: Principal Component Analysis plot of hepatic microarray expression data from Ptp1b fl/fl mice (red circles; n = 5) or LysM-Ptp1b-/- mice (blue circles; n = 4), aged 6 months, injected with LPS for 3 hours. PCA plot was generated using Partek Genomics Suite.

B: Heatmap of significantly differentially expressed in LysM-Ptp1b-/- vs Ptp1b fl/fl mice (red is upregulated and blue is downregulated). Top KEGG terms (C) and top GO terms (D) for genes (involved in cellular or molecular functions)

significantly upregulated or downregulated in LysM-Ptp1b-/- vs Ptp1b fl/fl mice.

Supplemental Figure 5: LysM PTP1B-/- have increased STAT5 expression. Representative

immunoblots of (a) liver STAT5 protein and (b) Spleen STAT5 protein immunoblots with GAPDH

loading control. STAT5 is increased in LysM PTP1B-/- when compared to control PTP1Bfl/fl mice in the c) liver (n=10/genotype) (p<0.05) and (d) spleen (n=10/genotype) (p<0.01). This is confirmed with qPCR gene expression analysis of (e) liver stat5 and (f) spleen stat5. (n=12/genotype)(p values -

p*<0.05. **p<0.01, ***p<0.001).

Supplemental figure 6: STAT3 ChIP-seq in LysM PTP1B-/- and PTP1Bfl/fl mice

STAT3 binding peaks at selected genes were visualised in the UCSC genome browser. Chromosomal

locations are shown at the top of each panel and gene positions are indicated at the bottom.

Abbreviations: Bcl2l14, BCL2-like 14 (apoptosis facilitator), also known as Bclg; Capn1, calpain 1;

Casp1, Caspase 1; Ddx5, DEAD box helicase 5, Fasl, Fas ligand; Mctp1, multiple C2 and transmembrane domain containing 1; Pdia4, protein disulfide isomerase family A member 4;

Slc38a9, solute carrier family 38 member 9.

Supplemental Methods:

ChIP-seq analysis:

BMDM extracted from PTP1Bfl/fl and LysM-PTP1B-/- mice aged 6 months were treated ± IL10 20ng/ml

(Peprotech) for 4 hours(n=4/group). ChIP was performed using the SimpleChIP Enzymatic Chromatin

IP kit (Cell Signalling) according to manufacturer’s instructions, with chromatin sheered to 200 bp and 10µl of STAT3 Mouse mAb #9139 per IP (Cell Signalling). Purified DNA was used to generate sequencing libraries with the TruSeq ChIP Library Preparation Kit (Illumina, San Diego, CA) to manufacturer’s instructions (50 ng of DNA per sample). Libraries were sequenced on the NextSeq-

500 Desktop sequencer platform (Illumina) with a 1x75 paired-end read length. Reads were processed within the Galaxy bioinformatics environment and filtered using TrimGalore to remove

adapter sequences and reads with pHred score <20 or length <20bp. Filtered reads were checked

using FastQC before aligning with HiSAT to the Mus musculus UCSC mm10 genome. BAM files were

exported to the Cistrome bioinformatics environment and peaks called using MACS v1.4 using an input control and p-value cut-off 10-5. All peaks, including those in distal regions were included in the downstream analysis. Peaks were analysed using CEAS, GREAT was used to annotate the regions nearest to peaks (within 3 kb upstream and 1 kb downstream) and MEME suite tools were used to analyse motifs. and KEGG analysis on annotated genes nearest peaks was performed using DAVID v6.8.

Microarray bioinformatics analysis:

PTP1Bfl/fl and LysM-PTP1B-/- mice (n=5 and 4, respectively) were injected with 0.5 mg/kg LPS i.p. for 3 hours. Livers were snap frozen in liquid nitrogen and homogenised in TriZol (Sigma). Microarray was performed using Gene 2.0ST array (Affymetrix), according to manufacturer’s instructions. Assay quality control, differential expression analysis, hierarchical clustering and SOM clustering were performed using Partek Genomics Suite. Gene ontology and KEGG analysis of differentially expressed genes was performed using DAVID v6.8.

a b 100 100 l l v a v a 80 80 v i v i r r u u 60 60 s s t t n n e e 40 40 c c r r e e P P 20 20 0 0 0 20 40 60 80 100 0 20 40 60 80 100 Weeks Weeks +/+ +/- -/- c d 0.15 ** ) g (

0.10

t h g i e 0.05 W

0.00 / - / + - + 1 B 1 B P P T T P P

e Longevity - Males Longevity - females

100% 100%

90% 90%

80% 80%

70% 70%

60% 60% Dead 50% 50% Sick 40% 40%

30% Healthy 30%

20% 20%

10% 10%

0% 0% s s s s s s s s t h t h t h t h t h t h t h t h n n n n n n n n o o o o o o o o m m m m m m m m 4 0 0 4 0 4 0 4 1 2 2 1 2 1 2 - 1 ------8 8 2 5 2 9 5 9 1 / - 1 1 1 1 1 - T T / - T / - / - T - B - - W W 1 W B B B W 1 P 1 1 T P P P T P T T P P P

Supplemental Figure 1 Supplemental Figure 2 a

Percent of Leukocytes e b 20 40 60

0 expression relaƟve to GAPDH GAPDH 0.00 0.05 0.10 0.15 PTP1B proteinPTP1B PTP1B

PTP1B PTP1B Lymphocytes * Monocytes PTP1B fl/fl Neutrophils fl LysM PTP1B +/- / Basophils N.D fl

Eosinophils LysM PTP1B -/- PTP1B Blast Cells LysM PTP1B -/- PTP1B LysM

Lymphocytes *** fl c Monocytes / fl Neutrophils

Basophils ***

Eosinophils PTP1B LysM Blast cells f Blast Cells PTP1B LysM

Percent of Leukocytes 20 40 60 0 -/- +/- PTP1B PTP1B Lymphocytes Monocytes

fl Neutrophils / fl d Basophils * Eosinophils PTP1B LysM

LysM PTP1BLysM -/- Blast Cells RelaƟve percent of total RBC Lymphocytes 0.0 0.5 1.0 1.5 2.0 2.5 Monocytes

Neutrophils PTP1B fl/fl -/- *** Basophils N.S Eosinophils LysM PTP1B +-/- Blast Cells a LysM PTP1B-/- Post Mortem

b LysM PTP1B-/- tumours c LysM PTP1B-/- tumours small intesƟne neck small intesƟne neck on – staining H&E Ɵ on – staining H&E ca Ɵ fi ca fi 100 x 100 x magni 40 x magni

right hip joint lower back right hip joint lower back

Supplemental Figure 3 Supplemental Figure 4

ABPrinicipal component analysis Heatmap of differntiall expressed genes

LysM Ptp1b-/-l

Ptp1b fl/fl

C Top KEGG terms

Upregulated genes Downregulated genes

Oxidative phosphorylation T cell receptor signaling pathway Alzheimer's disease Measles Parkinson's disease Natural killer cell mediated cytotoxicity Peroxisome Staphylococcus aureus infection Metabolic pathways Osteoclast differentiation 01020304050 0 2 4 6 8 10121416 -log p value -log10 p value 10

D Top gene ontology terms Upregulated Downregulated

Cellular component Cellular component Peroxisome Immunological synapse Mitochondrial matrix Cell surface Extracellular exosome Extracellular exosome Mitochondrial inner membrane External side of plasma membrane Mitochondrion Membrane 0 20 40 60 80 100 120 0 5 10 15 20 25 -log p value -log10 p value 10 Molecular function Molecular function Isomerase activity Protein kinase activity Electron carrier activity Kinase activity Hydrolase activity Double-stranded RNA binding Catalytic activity SH3 domain binding Oxidoreductase activity Protein binding 0 5 10 15 20 25 30 -log p value 0246810121416 10 -log 10 p value a Supplemental Figure 5 Expression relaƟve to GAPDH Liver c 0.0 0.1 0.2 0.3 0.4 0.5 PTP1B PTP1B fl/fl Liver STAT5 fl * / LysM PTP1B +/- fl

LysM PTP1B -/- PTP1B+/- LysM de Expression relaƟve to GAPDH 0 2 4 6 Spleen STAT5

PTP1B fl/fl PTP1B-/- LysM

LysM PTP1B +/- **

LysM PTP1B -/- GAPDH STAT5 relaƟve expression b 0 1 2 3 Liver

PTP1B fl/fl PTP1B * stat5 fl

LysM PTP1B +/- / fl LysM PTP1B -/- yMPTP1B+/- LysM

relaƟve expression f 0 1 2 3 4 5 Spleen PTP1B fl/fl yMPTP1B-/- LysM ** LysM PTP1B +/- stat5

LysM PTP1B -/- Spleen Supplemental Figure 6

Bcl2l14 (Bcl G)

LysM PTP1B -/- IL10 PTP1B fl/fl LysM PTP1B -/- control PTP1B fl/fl Input

Capn1

LysM PTP1B -/- IL10 PTP1B fl/fl LysM PTP1B -/- control PTP1B fl/fl Input

Casp1

LysM PTP1B -/- IL10 PTP1B fl/fl LysM PTP1B -/- control PTP1B fl/fl Input

Ddx5

LysM PTP1B -/- IL10 PTP1B fl/fl LysM PTP1B -/- control PTP1B fl/fl Input

Fasl

LysM PTP1B -/- IL10 PTP1B fl/fl LysM PTP1B -/- control PTP1B fl/fl Input

Mctp1

LysM PTP1B -/- IL10 PTP1B fl/fl LysM PTP1B -/- control PTP1B fl/fl Input

Pdia4

LysM PTP1B -/- IL10 PTP1B fl/fl LysM PTP1B -/- control PTP1B fl/fl Input

Slc38a9

LysM PTP1B -/- IL10 PTP1B fl/fl LysM PTP1B -/- control PTP1B fl/fl Input Supplemental Table 4: List of lipid metabolism genes upregulated >1.1 fold in liver from LysM- Ptp1b-/- mice (n = 4) vs Ptp1b fl/fl mice (n = 5) (Significance p values - p*<0.05. **p<0.01, ***p<0.001)

Gene Symbol Fold-Change Gene Symbol Fold-Change Cyp8b1 3.75 *** Acot13 1.43 ** Sgk2 3.40 *** Fasn 1.42 * Txnip 3.00 *** Bbox1 1.41 * Pdk4 2.55 * Decr2 1.37 ** Acaa1b 2.42 *** Pex19 1.36 ** Me1 2.34 ** Hsd17b4 1.36 * Acot2 2.30 * Elovl5 1.36 ** Klf10 2.09 ** Aqp9 1.35 ** Fitm1 2.07 ** Cd36 1.35 ** Crat 2.00 *** Fabp1 1.34 ** Hmgcs1 1.95 * Acad8 1.34 * Mogat1 1.91 ** Acads 1.34 ** Pex11a 1.90 *** Cpt1a 1.33 ** Cyp3a11 1.83 * Pex1 1.33 * Cyp4a32 1.79 ** Aldh1a1 1.33 ** Retsat 1.76 *** Cpt2 1.32 * Acad10 1.75 ** Acadl 1.31 * Gpam 1.68 ** Crot 1.31 *** Gpd1 1.66 ** Hadha 1.31 ** Ces1d 1.66 * Acot12 1.30 ** Aldh3a2 1.65 * Decr1 1.30 ** Vldlr 1.65 ** Pex3 1.29 ** Aqp7 1.63 * Acaa1a 1.28 ** Acss2 1.61 ** Acadm 1.27 ** Abcd3 1.61 *** Lipa 1.27 ** Slc25a10 1.60 ** Hadh 1.25 ** Pctp 1.59 ** Pcx 1.25 ** Ehhadh 1.58 ** Abcb4 1.24 * Vnn1 1.57 ** Aldh9a1 1.23 * Bdh1 1.55 ** Agpat2 1.23 * Acsm3 1.55 * Srebf1 1.22 * Hadhb 1.50 *** Acad9 1.20 * Slc25a20 1.48 ** Got2 1.20 * Angptl4 1.48 * Pex5 1.19 ** Acat1 1.47 *** Dgat1 1.18 * Mgll 1.46 * Acsl5 1.16 ** Acsm5 1.46 * Dbi 1.12 ** Etfdh 1.45 *** Pex13 1.11 * mevalonate pathway/sterol and isoprenoid biosynthesis Acat2 1.57 *** Sc5d 1.37 *** Fdps 1.46 ** Mvk 1.30 ** Additional modulators of lipid metabolism/fatty acid oxidation Sirt3 1.44 ** Mtor 1.23 ** Sirt5 1.31 * Lamtor4 1.24 ** Table y: List of genes downregulated greater than 2 fold in liver from LysM-Ptp1b-/- mice (n = 4) Ptp1b fl/fl vs mice (n = 5)

Gene Symbol Fold change p value Sirpb1a -3.65 4.36e-03 Sirpb1b -3.30 6.54e-04 Cd300e -3.27 2.51e-03 Siglec1 -3.25 4.85e-04 Clec4a3 -3.24 7.75e-04 Ms4a8a -3.22 1.50e-02 Trim30b -3.08 2.38e-03 Ms4a4c -2.92 3.72e-03 Gzmb -2.92 6.46e-03 Fcgr1 -2.88 6.37e-05 Fcrl5 -2.87 3.21e-03 Sirpb1a -2.86 1.92e-03 Trim30c -2.83 8.28e-04 Fcgr4 -2.82 3.24e-04 BC094916 -2.82 3.48e-03 Sell -2.80 4.57e-04 Tfec -2.80 1.45e-03 Slfn1 -2.76 5.69e-04 Gatm -2.74 1.41e-03 Ly6c2 -2.73 1.23e-02 Gm1966 -2.70 5.11e-03 Arg2 -2.70 3.93e-04 Ms4a4a -2.69 6.77e-04 Ppbp -2.65 1.93e-02 Peak1os -2.60 1.16e-03 Ctla2b -2.60 2.40e-03 Gm4759 -2.60 7.46e-03 Ifit1bl1 -2.57 2.91e-02 Stk17b -2.57 5.24e-04 Gpr35 -2.56 9.95e-04 Gm3033 -2.55 7.66e-03 Adgre4 -2.53 4.52e-03 A630012P03Rik -2.52 6.22e-04 Ccr5 -2.51 3.13e-03 Themis2 -2.51 8.04e-04 Scimp -2.50 4.87e-04 Tlr8 -2.49 2.20e-04 Klrb1b -2.48 2.84e-02 Gm25026 -2.46 4.92e-03 Gm15987 -2.45 7.18e-03 Ptpn22 -2.44 1.06e-03 (Table y continued) Gene Symbol Fold change p value Fam111a -2.44 3.67e-04 Epsti1 -2.43 1.07e-03 B430306N03Rik -2.42 2.73e-05 Reg3g -2.41 6.45e-03 Slc28a2 -2.40 1.27e-03 Cd72 -2.39 1.73e-03 Ms4a6b -2.38 7.33e-04 Clec4f -2.37 3.20e-03 Slamf1 -2.37 1.61e-02 Gm21188 -2.37 7.90e-04 Il7r -2.36 1.62e-03 Tmc5 -2.36 2.08e-02 Il10 -2.36 2.10e-03 Oas2 -2.34 4.55e-04 A2m -2.34 2.00e-02 Pyhin1 -2.33 9.57e-03 Cd69 -2.32 2.49e-02 Art2b -2.30 3.65e-03 Cd244 -2.29 5.34e-03 Cd53 -2.29 1.03e-04 Ccl6 -2.27 6.26e-04 Itgb2 -2.26 1.52e-03 A530040E14Rik -2.26 1.38e-02 Il2rb -2.25 1.00e-03 Il10ra -2.24 7.28e-03 I830077J02Rik -2.22 1.90e-02 Dab2 -2.22 1.10e-04 Oas3 -2.22 2.34e-03 Gypa -2.21 2.45e-02 5430427O19Rik -2.21 2.31e-03 Klra2 -2.20 1.87e-04 Gm5150 -2.20 2.10e-02 Slfn4 -2.20 3.42e-02 Cfp -2.19 5.98e-03 AI504432 -2.18 8.02e-03 6330407A03Rik -2.18 1.37e-03 Ms4a1 -2.18 7.02e-03 Itk -2.16 4.42e-04 Cyth4 -2.16 2.30e-03 Lpxn -2.16 1.34e-03 Sass6 -2.16 4.05e-04 Bin2 -2.15 7.43e-03 Il27 -2.15 2.93e-02 (Table y continued) Gene Symbol Fold change p value Klrk1 -2.14 6.40e-03 Hdac9 -2.13 6.50e-04 Tlr7 -2.13 1.19e-03 Gm4737 -2.13 1.09e-02 AB124611 -2.12 1.96e-04 Phf11a -2.12 2.34e-04 Htra4 -2.11 1.84e-02 P2ry13 -2.10 5.55e-03 Siglece -2.09 2.03e-02 Ptprc -2.09 1.65e-03 Slamf7 -2.07 1.28e-02 Ifitm6 -2.07 1.19e-02 Itgam -2.06 2.17e-02 Nckap1l -2.06 2.00e-03 Gm2427 -2.06 1.34e-02 Fst -2.06 4.51e-03 Gpr65 -2.06 1.90e-02 Rasgrp1 -2.06 2.53e-03 Bank1 -2.06 1.25e-02 Lilr4b -2.06 5.20e-04 LOC102639543 -2.05 1.07e-02 Vav1 -2.05 2.43e-03 Rhoh -2.04 1.85e-03 Clec4a1 -2.04 7.79e-03 Folr2 -2.03 4.60e-03 BC089597 -2.02 2.85e-03 Sp140 -2.02 3.11e-02 LOC101055672 -2.02 6.44e-03 Clec4n -2.01 1.18e-02 Milr1 -2.01 2.43e-03 Ms4a4b -2.01 2.34e-02

Supplemental Table 1

PTP1Bfl/fl LysM PTP1B+/- LysM PTP1B-/- n 12 12 12 Minimum 100 77 35 10 Percentile 100.6 83.3 35.9 25 Percentile 102.5 98.2 49 Median 104 100.5 58 Mean 103.3 99.4 59.8 75 Percentile 104 104 71.5 90 Percentile 104 104 91.4 Maximum 104 104 98 Std. Deviation 1.3 7.5 17.2

Significance v PTP1Bfl/fl p>0.05 p<0.0001 Significance v LysM PTP1B-/- p<0.0001

Supplemental Table1. Descriptive statistics for myeloid PTP1B mouse survival. Number of mice in each genotype is denoted in the first row as (n). The minimum survival is expressed in weeks (first death in the study), followed by the 10th percentile (where 10% of deaths have occurred), the 25th percentile, median, mean, 75th percentile, 90th percentile and maximum (last death in the study). Descriptive statistics indicate that PTP1Bfl/fl and LysM PTP1B+/- mice have a median of 104 weeks and 100.5 weeks, respectively; compared to 58 weeks in LysM PTP1B-/- mice. Standard deviation and significance thresholds for comparison of survival curves are shown. Significance was determined using the Mantel-Cox test.

Supplemental Table 2

Males:

PTP1B+/+ PTP1B-/- n 20 40 Minimum 76 32.67 10% Percentile 78.4 38.7 25% Percentile 91.7 56.6 Median 104 76.5 Mean 98.2 70.9 75% Percentile 104 86.2 90% Percentile 104 96.6 Maximum 104 104 Std. Deviation 9.9 20.4 Significance v PTP1B +/+ p<0.0001

Supplemental Table 2. Descriptive statistics for male global PTP1B mouse survival. Number of mice in each genotype is denoted in the first row as (n). The minimum survival is expressed in weeks (first death in the study), followed by the 10th percentile (where 10% of deaths have occurred), the 25th percentile, median, mean, 75th percentile, 90th percentile and maximum (last death in the study). Descriptive statistics indicate that WT and global PTP1B-/- mice have a median of 104 weeks and 76.5 weeks, respectively. Standard deviation and significance thresholds for comparison of survival curves are shown. Significance was determined using the Mantel-Cox test.

Supplemental Table 3

PTP1B+/+ PTP1B-/- n 16 23 Minimum 54 36.8 10% Percentile 61.7 39.31 25% Percentile 84.3 48.7 Median 90 64.7 Mean 89.1 64.2 75% Percentile 104 74.9 90% Percentile 104 87.6 Maximum 104 104 Std. Deviation 14.7 17.7

Significance v PTP1B +/+ p<0.001

Supplemental Table 3. Descriptive statistics for female global PTP1B mouse survival. Number of mice in each genotype is denoted in the first row as (n). The minimum survival is expressed in weeks (first death in the study), followed by the 10th percentile (where 10% of deaths have occurred), the 25th percentile, median, mean, 75th percentile, 90th percentile and maximum (last death in the study). Descriptive statistics indicate that WT and global PTP1B-/- mice have a median of 90 weeks and 64.7 weeks, respectively. Standard deviation and significance thresholds for comparison of survival curves are shown. Significance was determined using the Mantel-Cox test.