Journal: Cells
Article Title: CD133 Stimulates Cell Proliferation via the Upregulation of Amphiregulin in Melanoma
doi: 10.3390/cells13090777
Figure Lengend Snippet: Two melanoma cell lines BAKP and POT, exhibit higher levels of phosphorylation and activation of EGFR and members of the MAPK pathway (p-MEK, p-ERK, p-BAD compared to total MEK, ERK, BAD) ( A ) as well as the cell proliferation marker PCNA and cyclin D1 ( B ) in Dox-induced vs. uninduced cells. ( A ) Cell lysates of BAKP and POT cells incubated with or without 1 µg/mL Dox for 24 h were subjected to immunoblot analysis with antibodies to pEGFR. Immunoblots were stripped of antibodies and re-probed with antibodies to p-MEK, MEK, p-ERK, ERK, p-BAD, and β-actin for loading control. ( B ) Cell lysates of BAKP and POT cells incubated with or without 1 µg/mL Dox for 24 h were subjected to immunoblot analysis with antibodies to the proliferation marker PCNA, then β-actin for loading control. ( C ) BAKP cells incubated with or without 1 µg/mL Dox for 24 h were subjected to Western blot analysis with antibodies to CD133, then stripped of antibodies and re-probed with antibodies to TOP2 and β-actin, as loading control. Immunoblots loaded with the same lysates were likewise probed with antibodies to Cyclin D1, followed by β-actin. Densitometric analysis is shown in immunoblots, comparing intensities of protein bands relative to that of control −Dox cells, after normalizing to β-actin.
Article Snippet: Membranes were then incubated with antibodies to CD133 (Miltenyi Biotec, Auburn, CA, USA), AREG (Santa Cruz Biotech, Dallas, TX, USA), p-EGFR, p-MEK, p-BAD (BioLegend, San Diego, CA, USA), p-ERK, total MEK, ERK, BAD, proliferating cell nuclear antigen (PCNA), cyclin D1, or β-actin (ProteinTech, Rosemont, IL, USA) as loading control.
Techniques: Phospho-proteomics, Activation Assay, Marker, Incubation, Western Blot, Control