Wnt3a attenuates acute lung injury by reducing P2X7 receptor–mediated lung type I cell death Yujie Guo, Amarjit Mishra, Tingting Weng, Narendranath Reddy Chintagari, Yang Wang, Chunling Zhao, Chaoqun Huang, and Lin Liu Online Data Supplement
Jan 12, 2016
Wnt3a attenuates acute lung injury by reducing P2X7 receptor–mediated lung type I cell death
Yujie Guo, Amarjit Mishra, Tingting Weng, Narendranath Reddy Chintagari, Yang Wang, Chunling Zhao, Chaoqun Huang, and Lin Liu
Online Data Supplement
P2X3Rb
HEK29
3-P2
x7R
HEK29
3E1
0R3/
1M
LE15
A549
PRE-
TIIH44
1RLE
-6TN
RLF-6
P2X7R
β-actin
a
Supplementary Figure S1: Expression of P2X receptors in the lung cells. (a) Protein expression of P2X7R in different lung cell lines (20 µg total protein) was analyzed by Western blot using β-actin as an internal control. (b) mRNA expression of P2XRs in E10 cells and normal mouse lung tissues was determined by PCR using GAPDH as an loading control.
P2X2R
P2X4R
P2X5R
P2X6R
P2X7R
P2X1R
E10
Lung
100 bp200 bp
E10GAPDH
a b
**
* ***
*
BzATP < + + < oATP < < + +
Supplementary Figure S2: Activation of P2X7R causes E10 cell death. (a) E10 cells were incubated with different concentrations of BzATP for 12 hours. Cell number was counted. (b) E10 cells were treated with 400 µM BzATP in the absence or presence of 500 µM oATP for 12 hours, and the released LDH were measured. Data shown are means ± s.e.m. of three independent experiments. Statistical significance was determined by one-way ANOVA analysis with posthoc Tukey’s test. *P<0.001 v.s. control without any treatment or 0 time, **P<0.001 v.s. 400 µM BzATP.
b c
Supplementary Figure S3: BzATP does not cause cell death in the absence of P2X7R. (a) E10 cells were transduced with adenovirus-based shRNA vectors [virus control (si-control), si-P2X7R (1) and si-P2X7R (2)] for 4 days and then treated with 400 µM BzATP for 12 hours. Released LDH were measured. A549 cells (b) and H441 cells (c) were incubated with different concentrations of BzATP for 12 hours. Cell viability was measured. Data shown are means ± s.e.m. of three independent experiments. *P<0.001 v.s. control, #P<0.005 v.s. si-control.
a
**
# #
Supplementary Figure S4: P2X7R inhibits Wnt/β-catenin signaling. The relative mRNA expression of Wnt/β-catenin downstream genes in E10 cells treated with 400 µM BzATP for various times were determined using Real-time PCR. Data were normalized to 18S rRNA and expressed as a percent of 0 time. Data shown are means ± s.e.m. of three independent experiments.
Control
BzATPCon_CM
BzATP Wnt3a_CM
YO-P
ROCo
ntro
l
100 μm
Supplementary Figure S5: Effect of Wnt3a on P2X7R activity. E10 cells were treated with 400 µM BzATP for 15 min and incubated with YO-PRO dye for 10 min. The fluorescence was observed using a Nikon TE-2000 inverted microscope.
BzA
TP
Cont
rol 0 10 25 50
β-Ca
teni
n
LiCl (mM)
Supplementary Figure S6: Effect of LiCl on BzATP-induced cell death. E10 cells were treated with 10, 25, and 50 mM LiCl in the presence or absence of 400 µM BzATP for 8 hours, and then immuo-stained with anti-β-catenin antibodies . Scale bar: 50 µm.
Supplementary Figure S7: Wnt3a reduces BAL proteins in BzATP-treated rat. The rats were intratracheally instilled with BzATP with control (Con) or Wnt3a conditioned medium for 24 hours. BAL protein concentration was measured. Values represent means ± s.e.m. Statistical significance was determined by one-way ANOVA analysis with posthoc Tukey’s test. *P<0.01 v.s. PBS alone group and **P<0.01 v.s. BzATP + Con_CM group (n=8/group).
* **
*
BzATP
Supplementary Figure S8: Original scans of western blots
Supplementary Table S1. PCR primer sequences foe mouse genes
Gene Accession # Forward primers Reverse primers
18S NR_003278.1 ATTGCTCAATCTCGGGTGGCTGCGTTCTTAGTTGGTGGAGCGATTT
GBmp4 NM_007554.2 TGGGATGCTGCTGAGGTTGAAG CGAGCCAACACTGTGAGGAGTTTC
Axin2 NM_015732.4GCGAGTGGCCAAAGCAATCTATAA
G GAGCCGATCTGTTGCTTCTTGATGCyclin D1 NM_007631.2 AGAAGTGCGAAGAGGAGG TGTTCACCAGAAGCAGTTCCyclin E1 NM_007633.2 CACAACATCCAGACCCACACCAAC ACCACACTCGGAGGAGGAGAAATC
P2X1R NM_008771.3 TCAAGGACATTGTGCAGAGAAC CAGTTGCCTGTGCGAATACCTP2X2R NM_153400.4 GCGTTCTGGGACTACGAGAC ACGTACCACACGAAGTAAAGCP2X3R NM_145526.2 AAAGCTGGACCATTGGGATCA CGTGTCCCGCACTTGGTAGP2X4R NM_011026.2 CTCGGGTCCTTCCTGTTCG GTTTCCTGGTAGCCCTTTTCCP2X5R NM_033321.3 AGGGGGTGGCCTATACCAAC GGTTAGGAGTCACGATCAGGTTP2X6R NM_011028.2 GTTAAGGAGCTGGAGAACCG AGGATGCTCTGGACATCTGCP2X7R NM_011027.2 GACAAACAAAGTCACCCGGAT CGCTCACCAAAGCAAAGCTAAT