Evaluation of the efficacy of peritoneal lavage with distilled water in colorectal cancer surgery: in vitro and in vivo study
| Autor: | Yoshito Nako, Kazuma Okamoto, Masayoshi Nakanishi, Chouhei Sakakura, Eigo Otuji, Kenichi Takemoto, Takashi Nakahari, Daisuke Ichikawa, Hitoshi Fujiwara, Yasutoshi Murayama, Yoshinori Marunaka, Shuhei Komatsu, Atsushi Shiozaki, Yoshiaki Kuriu, Hirotaka Konishi |
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| Rok vydání: | 2014 |
| Předmět: |
Oncology
Programmed cell death medicine.medical_specialty Cell Pharmacology Osmotic Pressure In vivo Cell Line Tumor Internal medicine medicine Animals Humans Osmotic pressure Peritoneal Lavage Cell Size Distillation Mice Inbred BALB C Cell Death business.industry Gastroenterology Water Neoplastic Cells Circulating Xenograft Model Antitumor Assays In vitro Hypotonic Shock medicine.anatomical_structure Hypotonic Solutions Distilled water Cancer cell Female Colorectal Neoplasms business |
| Zdroj: | Journal of Gastroenterology. 50:287-297 |
| ISSN: | 1435-5922 0944-1174 |
| DOI: | 10.1007/s00535-014-0971-x |
| Popis: | Peritoneal lavage with distilled water has been performed during colorectal cancer surgery. This study investigated the cytocidal effects of hypotonic shock in vitro and in vivo in colorectal cancer cells.Three human colorectal cancer cell lines, DLD1, HT29, and CACO2, were exposed to distilled water, and morphological changes were observed under a differential interference contrast microscope connected to a high-speed digital video camera. Cell volume changes were assessed using a high-resolution flow cytometer. Re-incubation experiments were performed to investigate the cytocidal effects of distilled water. In the in vivo experiment, cancer cells after hypotonic shock were injected intraperitoneally into mice and the degree of established peritoneal metastasis was subsequently evaluated. The effects of the blockade of Cl(-) channels on these cells during hypotonic shock were also analyzed.Morphological observations revealed a rapid cell swelling followed by cell rupture. Measurements of cell volume changes showed that mild hypotonic shock induced regulatory volume decrease (RVD) while severe hypotonic shock broke cells into fragments. Re-incubation experiments demonstrated the cytocidal effects of hypotonicity. In vivo experiments revealed the absence of peritoneal dissemination in mice in the distilled water group, and its presence in all mice in the control group. The blockade of Cl(-) channels increased cell volume by inhibiting RVD and enhanced cytocidal effects during mild hypotonic shock.These results clearly support the efficacy of peritoneal lavage with distilled water during colorectal cancer surgery and suggest that regulating of Cl(-) transport may enhance the cytocidal effects of hypotonic shock. |
| Databáze: | OpenAIRE |
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