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![Page 1: Mean fluorescence intensity 10 4 10 1 10 2 10 3 0 Mean fluorescence intensity 10 4 10 1 10 2 10 3 0 Cell number KM12C shRNA SCRAMBLE KM12SM shRNA SCRAMBLE.](https://reader036.fdocuments.net/reader036/viewer/2022082917/551470c2550346284e8b6028/html5/thumbnails/1.jpg)
Mean fluorescence intensity104101 102 1030
Mean fluorescence intensity104101 102 1030
Cel
l n
um
be
r
Cel
l n
um
be
rC
ell
nu
mb
er
Cel
l n
um
be
r
KM12C shRNA SCRAMBLE
KM12SM shRNA SCRAMBLE
Negative controlE-cadherin
KM12C shRNA CDH17
KM12SM shRNA CDH17
Mean fluorescence intensity104101 102 1030
Mean fluorescence intensity104101 102 1030
Figure S1. KM12 cells do not express E-cadherin before or after CDH17 silencing. KM12C and SM cells expressing shRNAs scrambled or targeting CDH17 were subjected to flow cytometry assays using anti-E-cadherin antibody and Alexa 488 labeled-secondary antibodies. Fluorescence was analyzed in a Coulter Epics XL cytofluorometer. No surface expression was detected.
![Page 2: Mean fluorescence intensity 10 4 10 1 10 2 10 3 0 Mean fluorescence intensity 10 4 10 1 10 2 10 3 0 Cell number KM12C shRNA SCRAMBLE KM12SM shRNA SCRAMBLE.](https://reader036.fdocuments.net/reader036/viewer/2022082917/551470c2550346284e8b6028/html5/thumbnails/2.jpg)
Figure S2. Silencing of CDH17 does not modify KM12 cell migration and invasion. A) KM12 cell lines were cultured to confluence in Matrigel-coated plates (0.4 μm/mm²), and a 1 mm-wide wound was done across the monolayer. Migration speed of the cells was calculated from the distance covered after scratching in two days, as quantified in the pictures taken immediately or 48h after the scratching, divided by 48 (number of hours) and by 2 (because cells advanced in two fronts) . B) Invasion across Matrigel of the indicated KM12 cell lines towards serum. After 48 h of incubation, non-invading cells were removed and invasive cells were fixed, stained and counted under a microscope. In both experiments, data represent the mean + SD of 2 independent experiments.
A
KM12C KM12SM KM12C KM12SM
shRNA CDH17 #60
shRNA SCRAMBLE
KM12C KM12SM KM12C KM12SM
shRNA CDH17 #60
shRNA SCRAMBLE
BC
ell
mig
rati
on
sp
eed
(μ
m/h
)
Inva
sive
cel
ls
![Page 3: Mean fluorescence intensity 10 4 10 1 10 2 10 3 0 Mean fluorescence intensity 10 4 10 1 10 2 10 3 0 Cell number KM12C shRNA SCRAMBLE KM12SM shRNA SCRAMBLE.](https://reader036.fdocuments.net/reader036/viewer/2022082917/551470c2550346284e8b6028/html5/thumbnails/3.jpg)
RhoGDI
CDH17
Con
trol
CD
H17
Con
trol
CD
H17
Con
trol
CD
H17
Caco2 SW480 SW620
siRNA:
Figure S3. Assessment of silencing of CDH17 in Caco2, SW480 and SW620 cells. These cell lines were transfected with siRNAs against CDH17, or with control siRNAs. After 48h, cells were lysed, extracts were resolved by SDS-PAGE gels and subjected to Western blot analysis to detect CDH17. RhoGDI was used as loading control.
![Page 4: Mean fluorescence intensity 10 4 10 1 10 2 10 3 0 Mean fluorescence intensity 10 4 10 1 10 2 10 3 0 Cell number KM12C shRNA SCRAMBLE KM12SM shRNA SCRAMBLE.](https://reader036.fdocuments.net/reader036/viewer/2022082917/551470c2550346284e8b6028/html5/thumbnails/4.jpg)
104101 102 1030
104101 102 1030
6.9 7.14.44.4
12.5 12.110.1 10.6
104101 102 1030
Cel
l n
um
ber
104101 102 1030 104101 102 1030
KM12C shRNA SCRAMBLE
KM12C shRNA CDH17 #60
KM12SM shRNA CDH17 #60
KM12SM shRNA SCRAMBLE
Mean fluorescence intensity
104101 102 1030 104101 102 1030 104101 102 1030Mean fluorescence intensity
Cel
l n
um
ber
KM12C shRNA SCRAMBLE
KM12C shRNA CDH17 #60
KM12SM shRNA CDH17 #60
KM12SM shRNA SCRAMBLE
Negative Control
α2-integrin
Negative Control
β1-integrin
Figure S4. Silencing of CDH17 does not alter α2β1 integrin expression on KM12 cell surface. KM12 cell lines were detached with 2 mM EDTA in PBS and incubated with antibodies against α2 or β1 integrin subunits or with control antibodies. After washing, cells were incubated with secondary antibodies labeled with FITC. Cells were analyzed in a cell fluorometer to assess cell surface expression of afore mentioned integrin subunits.
![Page 5: Mean fluorescence intensity 10 4 10 1 10 2 10 3 0 Mean fluorescence intensity 10 4 10 1 10 2 10 3 0 Cell number KM12C shRNA SCRAMBLE KM12SM shRNA SCRAMBLE.](https://reader036.fdocuments.net/reader036/viewer/2022082917/551470c2550346284e8b6028/html5/thumbnails/5.jpg)
RhoGDI
β-catenin
pY229-p120 catenin
KM
12C
shR
NA
SC
RA
MB
LEK
M12
C s
hRN
A
CD
H17
KM
12S
M s
hRN
A
SC
RA
MB
LEK
M12
SM
shR
NA
CD
H17
p120 catenin
Figure S5. Expression of β-catenin and p120-catenin is not altered after CDH17-silencing. KM12 cell lines were lysed, protein extracts were resolved by SDS-PAGE and analyzed by western blot to assess expression of β-catenin and phosphorylated p120-catenin. After stripping, membrane was reincubated with antibodies against total p120-catenin. Control loading was done with anti-RhoGDI antibodies.