Objective To explore the effectiveness of the transforming growth factor-β1(TGF-β1) and tumor necrosis factor-α(TNF-α) inducing human bronchial epithelial(HBE) cells to optimize epithelia-mesenchymal transformation(EMT) model. Methods Blank control, TGF-β1 10 ng/ml, TNF-α 10 ng/ml, TGF-β1 10 ng/ml+TNF-α 10 ng/ml induced human epithelial cells for 24 hours. Then the change of morphological alteration were observed by applying CCK8, cells migration assay and Western blot technique. Results When TGF-β1 plus TNF-α induced human epithelial cells for 24 hours, most of HBE cells traits changed including morphological alteration from cobblestone to fusiform, connection between cells vanishing, intercellular space broadening. In the experiments of checking cell migration capacity by the vitro scratch test, the group spacing was 420.06±10.38 μm in the blank control group, 499.86±34.00 μm in the TGF-β1 10 ng/ml group, 514.93±10.56 μm in the TNF-α 10 ng/ml group, 569.68±33.58 μm in the TGF-β1 10 ng/ml+TNF-α10 ng/ml group. TGF-β1 cooperated with TNF-α led to scratch spacing narrowing significantly. Western blot analysis showed that expression of E-cadherin and Vimentin varied significantly in the TGF-β1+TNF-α group. Conclusion Inducing human bronchial epithelial cell by TGF-β1 cooperated with TNF-α optimizes EMT model.
ObjectiveTo summarize the clinical experience of Da Vinci robotic-assisted left upper lobectomy for treating lung cancer.MethodsWe retrospectively analyzed the perioperative data of 33 patients with primary lung cancer who underwent Da Vinci robotic-assisted left upper lobectomy between December 2016 and December 2018 in our hospital. Meanwhile, the perioperative data of 41 patients with lung cancer who underwent video-assisted thoracoscopic left upper lobectomy during the same period by the same surgeon were studied as a control group. The resection was followed by the principle of "from back down to front up" way. Systemic lymph node dissection including No.4-9 was performed for all patients.ResultsAll patients received successful surgery with no case of conversion to thoracotomy and perioperative death. Comparing to video-assisted thoracoscopic surgery, the Da Vinci robotic-assisted left upper lobectomy had longer operating time (191.21±61.77 min vs. 154.51±38.81 min, P=0.003), more cost (82 307.75±11 859.03 yuan vs. 58 966.57±5 640.07 yuan, P=0.000), shorter chest tube duration (4.58±1.77 d vs. 5.41±1.52 d, P=0.031) and postoperative hospital stay (6.48±1.82 d vs. 7.66±2.12 d, P=0.014). However, there was no significant difference between the two groups regarding to blood loss, lymph node dissection, postoperative pain score, total chest drainage volume, chest drainage volume per day and the rate of pulmonary complications.ConclusionThe Da Vinci robotic-assisted left upper lobectomy for treating lung cancer is safe and more minimally invasive, but more expensive.