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3 protocols using dusp6 ab76310

1

Protein Expression Regulation Study

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The commercial antibodies used in the study were raised against: P2RX7 (PR-004, Alomone Laboratories); Sp1 (#07-645, Merck Millipore); SAPK/JNK (#9252), anti-phospho-SAPK/JNK (Thr183/Tyr185) (#4668), p38 (#9212), phospho-p38 (Thr180/Tyr182) (#4511) and phospho-Erk1/2 (Thr202/Tyr204) (#4370), all from Cell Signaling; Erk (sc-1647) and DUSP1 (sc-370) from Santa Cruz Biotechnology; DUSP6 (ab76310) from Abcam; GAPDH (G9545) and α-tubulin (T5168) from Sigma-Aldrich. The horseradish peroxidase-conjugated secondary antibodies were from Dako (P0448 and P0260) and the secondary Alexa Fluor® conjugate antibodies (A31572 and A11001) were from Molecular Probes.
The specific inhibitors of MAPKs and other proteins used were: SP600125 (JNK), SB202190 (p38), U0126 (MEK), 666-15 (CREB), SR11302 (AP-1), KJ Pyr 9 (Myc), cyclic Pifithrin α (p53) and VO-OH Pic (PTEN), all from Tocris Bioscience; BCI (DUSP1/DUSP6), okadaic acid (PP2A) and BBG (P2RX7) were supplied by Merck-Millipore; mithramycin A (Sp1) and actinomycin D were purchased from Sigma-Aldrich. Other chemicals were supplied by Merck Millipore or Sigma-Aldrich.
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2

Immunoblotting and ChIP-PCR Assays

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Antibodies specific for TCF1 (#2203 S) and pERK (T202/Y204, #4377 S) from Cell Signaling Technology, and DUSP6 (ab76310) from Abcam, were used at a dilution of 1 in 1000 for immunoblotting or 1 in 50 for ChIP-PCR. Antibodies specific for β-actin were from Santa Cruz Biotechnology (sc-47778 HRP) and used at 1 in 10000. Fluorochrome-conjugated antibodies were from BD Biosciences including CD4-APC (555349), CD69- PerCP-Cy5.5 (560738) and CD45RA-PE-Cy™7 and BioLegend including CD62L-PE (304806), CD25-APC (302610) and human IL-2 Alexa-Fluor-488 (500314). All antibodies for flow cytometry were used at 1 in 50. PIM1 inhibitor (526521), GSK3β inhibitors, BIO (2’Z,3’E)-6-Bromoindirubin-3ʹ-oxime (361550) and SB216763 (S3442), were from Sigma.
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3

Immunoblotting and Immunofluorescence Protocols

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Primary antibodies were obtained from the following sources: DUSP6 (ab76310) from Abcam (Toronto, Canada), β‐actin (MAB1501R) from Millipore (Oakville, Canada), ERK2 (sc‐154) and MEK2 (sc‐524) from Santa Cruz Biotechnology (Santa Cruz, CA), phosphorylated ERK1/2 (M8159) from Sigma‐Aldrich (Oakville, Canada), phosphorylated MEK1/2 (9121) from Cell Signaling Technology (Danvers, MA, USA), chromogranin A (20085) from ImmunoStar (Hudson, WI), proliferating cell nuclear antigen (PCNA; 18197) from Abcam and Ki67 (GTX16667) from Genetex (Irvine, CA). Horseradish peroxidase antibodies were obtained from GE Healthcare Life Sciences (Mississauga, Canada) and alkaline phosphatase‐conjugated antibodies from Promega (Madison, WI). For immunofluorescence, Alexa Fluor 488 conjugated antibodies were obtained from Molecular Probes (Waltham, MA). Other materials were purchased from Sigma‐Aldrich unless stated otherwise.
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