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4 protocols using ceacam6

1

Western Blot Analysis of Metabolic Enzymes

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Western blots were conducted following previously described methods [30 (link)]. The rabbit polyclonal antibodies against ALDOB (Proteintech, Rosemont, IL, USA, Cat. 18065-1-AP, diluted 1:5000), LDHA (Proteintech, Cat. 21799-1-AP, diluted 1:1000), and LDHB (Proteintech, Cat. 14824-1-AP, diluted 1:5000), along with the rabbit monoclonal antibody against ACTB (Sigma-Aldrich, St. Louis, MO, USA, Cat. A5441, diluted 1:10000), PDK1 (Cell Signaling Technology, Danvers, MA, USA, Cat. #5662, diluted 1:1000), phospho-PDK1 (Cell Signaling Technology, Cat. #3438, diluted 1:1000), and lactyl-lysine (Cat. PTM-1401RM, PTM BIO, Chicago, IL, USA), and the mouse monoclonal antibodies against pan-CEA (Santa Cruz Biotechnology, Dallas, TX, USA, Cat. Sc-48364, diluted 1:100), and CEACAM6 (Santa Cruz Biotechnology, Cat. sc59899, diluted 1:100) were used for Western blot analysis. Lysate preparation and immunoprecipitation were performed according to previously established methods [31 (link)]. In each reaction, 1 μg of the mouse monoclonal antibody against CEACAM6 (Santa Cruz Biotechnology, Cat. sc59899) was employed. After thorough washing, the immunoprecipitates were utilized for subsequent western blot analysis.
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2

LUAD Tissue and Cell Line Protocol

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Fresh resected human LUAD and matched adjacent noncancerous tissue were obtained after informed consent and approval by the institutional review board (16-1514, 16-107, and 12-245) at Memorial Sloan Kettering Cancer Center. Human LUAD cell lines, human lung fibroblast cells and a normal bronchial epithelial cell line (NL20) were obtained from American Type Culture Collection; Lenti-X 293T cells were purchased from Takara Bio. All cells were tested for mycoplasma. The primary antibodies used were BRMS1 (Abcam, ab134968), c-fos (Cell Signaling, #2250), c-Jun (Cell Signaling, #9165), V5-epitope (Abcam, ab15828), CEACAM6 (Santa Cruz, SC-59899), Src (Cell Signaling, #2109), p-Src Y416 (Cell Signaling, #59548), p-fos S32 (Cell Signaling, #5248), actin (Santa Cruz, sc-8432), p-Jun S63 (Cell Signaling, #2361), RAMP1 (Thermo Fisher, 10327-1-AP), and F5 (Thermo Fisher, PA5-103046). The reagents used—c-fos inhibitor T5224 (S8966) and Src inhibitor Saracatinib (AZD0530, S1006)—were purchased from Selleck Chemicals. Collagen Type IV (C6745), Collagen Type I solution (C3867), and TCN (T7760) were purchased from Millipore Sigma; puromycin (A1113803) and blasticidin (A1113903) were purchased from Thermo Fisher; CellTiter-Glo was obtained from Promega (G9241); and poly-HEMA solution was purchased from Sigma-Aldrich (P3932).
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3

Antibody Procurement for Cell Signaling

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Antibodies against ZO-1 were purchased from Invitrogen; CEACAM5 from Abcam (Cambridge, UK); CEACAM6 from Santa Cruz Biotechnology (Dallas, TX); β-actin from Sigma; phosphor-FAK from Invitrogen; FAK from BD Bioscience (San Jose, CA); and integrin β4 from Novous Biological (Littleton, CO).
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4

Immunohistochemical Quantification of ALDOB and CEACAM6

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IHC was conducted following previously described methods [32 (link)]. A rabbit monoclonal antibody against ALDOB (Proteintech, Rosemont, IL, USA, Cat. 14824-1-AP) and CEACAM6 (Santa Cruz Biotechnology, Cat. sc59899) were used for staining at dilutions of 1:200 and 1:50, respectively. The intensity of the staining signal was quantified using Image J (National Institutes of Health, Bethesda, MD, USA, Fiji edition) and subsequently analyzed.
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