Extracellular pressure stimulates colon cancer cell adhesion in vitro and to surgical wounds by Src (sarcoma protein) activation

We hypothesized that pressure stimulates colon cancer cell adhesion to surgical wounds. We quantitated adhesion of murine 26/51 transplantable colon cancer cells by cell counting or chromium 51–labeling. Tumor cells were added to murine surgical wounds after 30 minutes preincubation under ambient or...

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Veröffentlicht in:The American journal of surgery 2004-11, Vol.188 (5), p.467-473
Hauptverfasser: van der Voort van Zyp, Jochem, Thamilselvan, Vijayalakshmi, Walsh, Mary, Polin, Lisa, Basson, Marc D.
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container_end_page 473
container_issue 5
container_start_page 467
container_title The American journal of surgery
container_volume 188
creator van der Voort van Zyp, Jochem
Thamilselvan, Vijayalakshmi
Walsh, Mary
Polin, Lisa
Basson, Marc D.
description We hypothesized that pressure stimulates colon cancer cell adhesion to surgical wounds. We quantitated adhesion of murine 26/51 transplantable colon cancer cells by cell counting or chromium 51–labeling. Tumor cells were added to murine surgical wounds after 30 minutes preincubation under ambient or 15 mm Hg increased pressure. Src activation was assayed by immunoblotting for phosphorylated Src and inhibited by 4-amino-5-(4chlorophenyl)-7-(t-butyl)pyrazolo-[3-4-d]pyrimidine (PP2). Pressure stimulated colon 26/51 cell adhesion to murine wounds by 43% to 52% (n = 9, P
doi_str_mv 10.1016/j.amjsurg.2004.07.005
format Article
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We quantitated adhesion of murine 26/51 transplantable colon cancer cells by cell counting or chromium 51–labeling. Tumor cells were added to murine surgical wounds after 30 minutes preincubation under ambient or 15 mm Hg increased pressure. Src activation was assayed by immunoblotting for phosphorylated Src and inhibited by 4-amino-5-(4chlorophenyl)-7-(t-butyl)pyrazolo-[3-4-d]pyrimidine (PP2). Pressure stimulated colon 26/51 cell adhesion to murine wounds by 43% to 52% (n = 9, P &lt;0.05 each). Pressure stimulated Src phosphorylation by 39% ± 4% (n = 5, P = 0.004) in colon 26 cells. The Src inhibitor PP2 (20 μmol/L) did not inhibit Src phosphorylation at ambient pressure but prevented pressure stimulation of Src phosphorylation. Src blockade by PP2 did not affect basal adhesion of either tumor to murine wounds but completely blocked pressure stimulation of adhesion (n = 4, P &lt;0.001 each). Increased pressure may activate cancer adhesion to surgical wounds via Src. 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We quantitated adhesion of murine 26/51 transplantable colon cancer cells by cell counting or chromium 51–labeling. Tumor cells were added to murine surgical wounds after 30 minutes preincubation under ambient or 15 mm Hg increased pressure. Src activation was assayed by immunoblotting for phosphorylated Src and inhibited by 4-amino-5-(4chlorophenyl)-7-(t-butyl)pyrazolo-[3-4-d]pyrimidine (PP2). Pressure stimulated colon 26/51 cell adhesion to murine wounds by 43% to 52% (n = 9, P &lt;0.05 each). Pressure stimulated Src phosphorylation by 39% ± 4% (n = 5, P = 0.004) in colon 26 cells. The Src inhibitor PP2 (20 μmol/L) did not inhibit Src phosphorylation at ambient pressure but prevented pressure stimulation of Src phosphorylation. Src blockade by PP2 did not affect basal adhesion of either tumor to murine wounds but completely blocked pressure stimulation of adhesion (n = 4, P &lt;0.001 each). Increased pressure may activate cancer adhesion to surgical wounds via Src. Src antagonists might inhibit this process.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><pmid>15546552</pmid><doi>10.1016/j.amjsurg.2004.07.005</doi><tpages>7</tpages></addata></record>
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subjects Animals
Biological and medical sciences
Blotting, Western
Calcineurin - pharmacology
Cell adhesion & migration
Cell Adhesion - drug effects
Cell Adhesion - physiology
Cell signaling
Colon
Colonic Neoplasms - drug therapy
Colonic Neoplasms - pathology
Colorectal cancer
Disease Models, Animal
Female
Gastroenterology. Liver. Pancreas. Abdomen
General aspects
Male
Medical sciences
Mice
Mice, Inbred BALB C
Mice, Inbred C57BL
Mouse
Neoplasm Seeding
Neoplasm Transplantation
Pressure
Probability
Proteins
Proto-Oncogene Proteins pp60(c-src) - drug effects
Proto-Oncogene Proteins pp60(c-src) - physiology
Rodents
Sensitivity and Specificity
Signal Transduction - drug effects
Signal Transduction - physiology
Stomach. Duodenum. Small intestine. Colon. Rectum. Anus
Transplantable tumors
Tumor Cells, Cultured
Tumors
Wound implantation
title Extracellular pressure stimulates colon cancer cell adhesion in vitro and to surgical wounds by Src (sarcoma protein) activation
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