The clinicopathologic significance of Tks5 expression of peritoneal mesothelial cells in gastric cancer patients.
<h4>Background</h4>Gastric cancer (GC) patients frequently develop peritoneal metastasis. Recently, it has been reported that peritoneal mesothelial cells (PMCs) activated by GC cells acquire a migratory capacity and promote GC cell invasion. The invasiveness of PMCs reportedly depends o...
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2021
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oai:doaj.org-article:5d385b49bd7e405f97d770de9a3e32f82021-12-02T20:15:24ZThe clinicopathologic significance of Tks5 expression of peritoneal mesothelial cells in gastric cancer patients.1932-620310.1371/journal.pone.0253702https://doaj.org/article/5d385b49bd7e405f97d770de9a3e32f82021-01-01T00:00:00Zhttps://doi.org/10.1371/journal.pone.0253702https://doaj.org/toc/1932-6203<h4>Background</h4>Gastric cancer (GC) patients frequently develop peritoneal metastasis. Recently, it has been reported that peritoneal mesothelial cells (PMCs) activated by GC cells acquire a migratory capacity and promote GC cell invasion. The invasiveness of PMCs reportedly depends on the activity of Tks5, an adaptor protein required for invadopodia formation. However, the relationship between clinicopathologic features and Tks5 expression in PMCs has been poorly documented. In this study, we evaluated the clinicopathologic significance of the Tks5 expression of PMCs in GC patients.<h4>Materials and methods</h4>A total of 110 GC patients who underwent gastrectomy were enrolled in this study. Tks5 expressions in PMCs from the greater omentum, lesser omentum and retroperitoneum were evaluated by immunohistochemistry. We analyzed the correlation between Tks5 expressions in PMCs and the patients' clinicopathologic features.<h4>Results</h4>Tks5 expression was found in 71 (64.5%) of the 110 patients, while 39 (35.5%) were Tks5-negative. Tks5 positivity was significantly (p = 0.038) associated with a greater tumor depth (i.e., T3/4 compared with T1/T2). Peritoneal recurrence was found in 12 of 98 cases within 3 years of surgery. The 3-year peritoneal recurrence-free survival (PRFS) rate in Tks5-positive cases was significantly poorer than that in Tks5-negative cases (80.1% vs 97.4%, p = 0.024). Multivariate analysis revealed that Tks5 positivity and lymph node metastasis were independent factors for PRFS.<h4>Conclusion</h4>Tks5 is frequently expressed in PMCs in advanced-stage gastric cancer. Tks5 might be a useful predictor for peritoneal recurrence in GC patients.Atsushi SugimotoTomohisa OkunoGen TsujioTomohiro SeraYurie YamamotoKoji MaruoShuhei KushiyamaSadaaki NishimuraKenji KurodaShingo ToganoYuichiro MikiMami YoshiiTatsuro TamuraTakahiro ToyokawaHiroaki TanakaKazuya MugurumaMasaichi OhiraMasakazu YashiroPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 16, Iss 7, p e0253702 (2021) |
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Medicine R Science Q Atsushi Sugimoto Tomohisa Okuno Gen Tsujio Tomohiro Sera Yurie Yamamoto Koji Maruo Shuhei Kushiyama Sadaaki Nishimura Kenji Kuroda Shingo Togano Yuichiro Miki Mami Yoshii Tatsuro Tamura Takahiro Toyokawa Hiroaki Tanaka Kazuya Muguruma Masaichi Ohira Masakazu Yashiro The clinicopathologic significance of Tks5 expression of peritoneal mesothelial cells in gastric cancer patients. |
| description |
<h4>Background</h4>Gastric cancer (GC) patients frequently develop peritoneal metastasis. Recently, it has been reported that peritoneal mesothelial cells (PMCs) activated by GC cells acquire a migratory capacity and promote GC cell invasion. The invasiveness of PMCs reportedly depends on the activity of Tks5, an adaptor protein required for invadopodia formation. However, the relationship between clinicopathologic features and Tks5 expression in PMCs has been poorly documented. In this study, we evaluated the clinicopathologic significance of the Tks5 expression of PMCs in GC patients.<h4>Materials and methods</h4>A total of 110 GC patients who underwent gastrectomy were enrolled in this study. Tks5 expressions in PMCs from the greater omentum, lesser omentum and retroperitoneum were evaluated by immunohistochemistry. We analyzed the correlation between Tks5 expressions in PMCs and the patients' clinicopathologic features.<h4>Results</h4>Tks5 expression was found in 71 (64.5%) of the 110 patients, while 39 (35.5%) were Tks5-negative. Tks5 positivity was significantly (p = 0.038) associated with a greater tumor depth (i.e., T3/4 compared with T1/T2). Peritoneal recurrence was found in 12 of 98 cases within 3 years of surgery. The 3-year peritoneal recurrence-free survival (PRFS) rate in Tks5-positive cases was significantly poorer than that in Tks5-negative cases (80.1% vs 97.4%, p = 0.024). Multivariate analysis revealed that Tks5 positivity and lymph node metastasis were independent factors for PRFS.<h4>Conclusion</h4>Tks5 is frequently expressed in PMCs in advanced-stage gastric cancer. Tks5 might be a useful predictor for peritoneal recurrence in GC patients. |
| format |
article |
| author |
Atsushi Sugimoto Tomohisa Okuno Gen Tsujio Tomohiro Sera Yurie Yamamoto Koji Maruo Shuhei Kushiyama Sadaaki Nishimura Kenji Kuroda Shingo Togano Yuichiro Miki Mami Yoshii Tatsuro Tamura Takahiro Toyokawa Hiroaki Tanaka Kazuya Muguruma Masaichi Ohira Masakazu Yashiro |
| author_facet |
Atsushi Sugimoto Tomohisa Okuno Gen Tsujio Tomohiro Sera Yurie Yamamoto Koji Maruo Shuhei Kushiyama Sadaaki Nishimura Kenji Kuroda Shingo Togano Yuichiro Miki Mami Yoshii Tatsuro Tamura Takahiro Toyokawa Hiroaki Tanaka Kazuya Muguruma Masaichi Ohira Masakazu Yashiro |
| author_sort |
Atsushi Sugimoto |
| title |
The clinicopathologic significance of Tks5 expression of peritoneal mesothelial cells in gastric cancer patients. |
| title_short |
The clinicopathologic significance of Tks5 expression of peritoneal mesothelial cells in gastric cancer patients. |
| title_full |
The clinicopathologic significance of Tks5 expression of peritoneal mesothelial cells in gastric cancer patients. |
| title_fullStr |
The clinicopathologic significance of Tks5 expression of peritoneal mesothelial cells in gastric cancer patients. |
| title_full_unstemmed |
The clinicopathologic significance of Tks5 expression of peritoneal mesothelial cells in gastric cancer patients. |
| title_sort |
clinicopathologic significance of tks5 expression of peritoneal mesothelial cells in gastric cancer patients. |
| publisher |
Public Library of Science (PLoS) |
| publishDate |
2021 |
| url |
https://doaj.org/article/5d385b49bd7e405f97d770de9a3e32f8 |
| work_keys_str_mv |
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