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Fig. 2. LPA induces the time-dependent internalization of LPA1 in HeLa
cells. Stably transfected HeLa cells expressing LPA1 were incubated
for various times with 10 µM LPA, fixed and processed for indirect
immunofluorescence localization of LPA1 using mouse anti-FLAG
antibodies and Alexa594-labeled goat anti-mouse secondary antibodies.
LPA1+ endosomal structures are first observed after 10
minutes of LPA treatment. Bar, 10 µm.
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