Fetal gene upregulation by 1-wk TAC is significantly increased in mice lacking RGS2.
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1 3562-RG-1 Supplementary Figure 1 Fetal gene upregulation by 1-wk is significantly increased in mice lacking RGS2. ANP(Nppa) /BNP(Nppb) A-type and B-type natriuretic peptide; β-mhc (Myh7) beta myosin heavy chain. Reduced expression of SERCA2a (Atp2a2a) was similar in both groups. * p<.1 versus ; p<.1 versus -1wk RGS2 +/+ and ; p<.1 versus corresponding (within genotype) (n=3-8 for each group). Supplementary Figure 2A Invasive hemodynamic data in mice after 48-hrs of. The increase in afterload reflected by peak LV pressure, Ea, and systemic vascular resistance (SVR) was similar in both genotype groups (n=3-7 for each group). Cardiac output and stroke volume change was also similar in both groups. (deleted) None of these parameters yielded a significant interaction term by 2 way ANOVA ( genotype). Supplementary Figure 2B Summary echocardiographic data in RGS2 +/+ mice, and RGS2 -/- mice subjected to 48-hr. The latter group was further co-treated with the PLCβ inhibitor U73122, or its inactive analog U73433 as a control. Inhibition of PLCβ prevented early chamber dilation (LV-diastolic diameter: LV-Dd), wall thickening, and reduced fractional shortening (FS) in the RGS2 -/- hearts (n=4-9 in each group). * p<.1 versus for each corresponding genotype. 39
2 3562-RG-1 Supplementary Figure 3 Expression of calcineurin (Cn), phosphorylated CaMKII and ERK1/2 in mice subjected to 6-wk swimming exercise in RGS2 +/+ and RGS2 -/- groups. Unlike with, none of these signaling cascades were stimulated by swimming in either of the genotype groups (n=3-6 in each group). Supplementary Figure 4A Example of normal PKG1-α distribution in myocyte from RGS2 -/- heart showing diffuse localization as observed in control (RGS2 +/+ ) cells under rest conditions. Supplementary Figure 4B. Ponceau stains of membranes confirming equal protein loading for particulate and soluble fractions for the analysis displayed in Figure 7D. 4
3 Supplementary Figure 1 Normalized mrna/gapdh ANP (nppa) BNP (nppb) (A.U.) (A.U.) 2 <.1 5 < * 2 * 5 1 RGS2 +/+ RGS2 -/- RGS2 +/+ RGS2 -/- RGS2 +/+ RGS2 -/- RGS2 +/+ RGS2 -/- (A.U.) β-mhc (myh7) (A.U.) SERCA2a (atp2a) <.5 NS *.8.4 RGS2 +/+ RGS2 -/- RGS2 +/+ RGS2 -/- RGS2 +/+ RGS2 -/- RGS2 +/+ RGS2 -/-
4 Supplementary Figure 2A peak LVP (mmhg) Ea (mmhg/μl) SVR (mmhg/μl) * * 48h RGS2 +/+ -/- 48h * * 48h +/+ -/- 48h * * 48h +/+ -/- 48h 12 8 CO (ml/min) 3 2 SV (μl) h RGS2 +/+ -/- 48h 48h +/+ -/- 48h Supplementary Figure 2B (mm) LV - Dd * * + U U73343 (mm) wall thickness U U73343 RGS2 +/+ RGS2 -/- RGS2 +/+ RGS2 -/- 8 (%) FS 6 4 * * 2 + U U73343 RGS2 +/+ RGS2 -/-
5 Supplemental Figure Cn Sedentary Swimming RGS2 +/+ -/- +/+ -/- Cn GAPDH 1.5 p/t-camk II 1.5 p t 1.5 p/t-erk 1.5 RGS2 +/+ RGS2 -/- RGS2 +/+ RGS2 -/- Sedentary Swimming p t
6 Supplementary Figure 4A RGS2 (red) PKG1α (green) RGS2 -/- myocyte Supplementary Figure 4B 48hr +SIL RGS2 +/+ particulate fraction 48hr +SIL RGS2 +/+ soluble fraction 48hr +SIL RGS2 -/- particulate fraction 48hr +SIL RGS2 -/- soluble fraction
7 Supplementary Table 1 Baseline Characteristics (Body Weight, Heart Weight and Echocardiographic Parameters) in 4-5 month old mice. Age 4-5 month Genotype RGS2 +/+ (n = 1) RGS2 -/- (n = 12) BW (g) 26.2 ± ±.5 HW/TL (g/cm) 63.5 ± ± 1.7 LV-Dd (mm) 3.26 ± ±.5 LV-Ds (mm) 1.32 ± ±.3 WT (mm).84 ±.1.84 ±.1 %FS 59. ± ±.7 HR (bpm) 672 ± ± 1 Data are mean ± SE. p=ns for all between group comparisons (RGS2 +/+ vs RGS2 -/- ). BW body weight; HW/TL heart weight normalized to tibia length; LV-Dd - enddiastolic dimension of left ventricle; LV-Ds - end-systolic dimension of left ventricle; WT - averaged wall thickness of lateral wall and intraventricular septum; %FS - percent fractional shortening calculated as follows: %FS = (LV-Dd LV-Ds)/ LV-Dd x 1; HR - heart rate.
8 Supplementary Table 2 Baseline Hemodynamics (age: 4-5 month old) Genotype RGS2 +/+ (n = 7) RGS2 -/- (n = 7) LVP sys (mmhg) 14.7 ± ± 11.1 * LVP dia (mmhg) 5.4 ± ±.7 Ea (mmhg. μl -1 ) 4.6 ± ±.7 * SVR (mmhg. μl -1 ).52 ±.4.75 ±.9 * SV (μl) 22.5 ± ± 1.6 CO (ml/min) 11.9 ±.9 1. ±.9 EF.65 ±.4.64 ±.2 dpdtmx (mmhg.s -1 ) ± ± 469 dpdt /IP (s -1 ) ± ± 6.2 PMXI (mmhg.s -1 ) 3.6 ± ± 1.6 PRSW (mmhg) 8.6 ± ± 5.8 Ees (mmhg.μl -1 ) 5.71 ± ±.82 V 1 (μl) 11.5 ± ± 1.3 dpdtmn (mmhg.s -1 ) ± ± 566 Tau (ms) 7.7 ± ±.4 PFR /EDV (s -1 ) 35.7 ± ± 3.5 HR (bpm) ± ± 11.1 Data are mean ± SE. 2
9 LVP sys - LV end-systolic pressure; LVP dia - LV end-diastolic pressure; Ea - effective arterial elastance - an index of total ventricular afterload; SVR - systemic vascular resistance; SV - LV stroke volume; CO - cardiac output; EF - ejection fraction. Contractile systolic indexes are: dp/dt max - maximal rate of pressure rise; dp/dt mx /IP - dp/dt max normalized to instantaneous developed pressure; PMXI - power index: maximal ventricular power divided by end-diastolic volume; PRSW - preload recruitable stroke work; Ees - end-systolic elastance; V 1 - end-systolic volume at common endsystolic pressure (= 1mmHg) derived from ESPVR. Diastolic indexes are: Tau - time constant of pressure relaxation; dp/dt min - peak rate of LV pressure decline; PFR/EDV - peak ventricular filling rate normalized to end-diastolic volume. The latter reflects early diastolic properties, i.e. relaxation and passive stiffness during early filling. A higher value reflects improved diastolic function. *p <.5 vs RGS2 +/+. 3
10 Supplementary Table 3 Baseline Characteristics (Body Weight, Heart Weight and Echocardiographic Parameters) in 1 month old mice. Age 1 month Genotype RGS2 +/+ (n = 14) RGS2 -/- (n = 15) BW (g) 33.3 ± ±.5 HW/TL (g/cm) 83.3 ± ± 4.3 LV-Dd (mm) 3.45 ± ±.6 LV-Ds (mm) 1.43 ± ±.4 WT (mm).94 ±.1.94 ±.2 %FS 58.5 ± ±.7 HR (bpm) 643 ± ± 1 Data are mean ± SE. p=ns for all between group comparisons (RGS2 +/+ vs RGS2 -/- ). BW body weight; HW/TL heart weight normalized to tibia length; LV-Dd - enddiastolic dimension of left ventricle; LV-Ds - end-systolic dimension of left ventricle; WT - averaged wall thickness of lateral wall and intraventricular septum; %FS - percent fractional shortening calculated as follows: %FS = (LV-Dd LV-Ds)/ LV-Dd x 1; HR - heart rate. 4
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