1.Effects of IL-12 combined with GM-CSF on apoptosis of H22 hepatoma cells
Siqi LIU ; Qian ZHANG ; Xue SHAO ; Shengnan JIA ; Jingting MA ; Liulan PAN
Clinical Medicine of China 2017;33(7):591-595
Objective To investigate the effects of granulocyte macrophage colony-stimulating factor (GM-CSF) combined with interleukin-12 (IL-12) genes on apoptosis of hepatoma cells.Methods The hepatoma cell lines were cultured in vitro and were divided into four groups: GM-CSF transfection group,IL-12 transfection group,GM-CSF and IL-12 co-transfection group,negative control group (empty load group),respectively.The PIB-CMV3-GM-CSF and PIB-CMV3-IL-12 eukayotic expression vector was built,and 36 h after transfection,fluorescence microscope was used to detect the transfection effect;the expression level of IL-12,GM-CSF,p53,p38 and C-JUN mRNA were detected by RT-PCR,and Western blot was used to examine the expression level of IL-12,GM-CSF,p53,p38 and C-JUN protein.In addition,the flow cytometry was applied to detect cell apoptosis.Results Through fluorescence microscope,green fluorescence was observed in cells of GM-CSF transfection group,IL-12 transfection group,GM-CSF and IL-12 co-transfection group,indicating that the plasmid has successfully transferred into cells.In addition,the expression of p53mRNA in empty load group,GM-CSF transfection group,IL-12 transfection group,GM-CSF and IL-12 co-transfection group were 1.2±0.10,4.3±0.98,4.2±0.34,9.2±0.87,and the protein expression were 1.0±0.10,3.6±0.34,3.8±0.30,5.0±0.60.Compared with the empty load group,the expression level of p53 mRNA and protein were significantly increased in the three plasmid transfection groups (P<0.01).The expression of p53 mRNA and protein were significantly increased in co-transfection group than GM-CSF group and IL-12 group (P<0.01),while in the comparison with GM-CSF transfection group and IL-12 transfection group,the expression level of p53mRNA and protein in the co-transfection group could be improved to a higher degree(P<0.01).Meanwhile,p38 C-JUN mRNA expression levels in empty load group,GM-CSF transfection group,IL-12 transfection group,GM-CSF and IL-12 co-transfection group were as follows: 7.5± 0.9,3.5±0.45,3.7±0.25,1.0±0.11,while p38protein expression levels were 10.1±1.03,6.1± 0.67,7.1 ± 0.61,1.0 ± 0.12,respectively,C-JUN mRNA expression levels were 11.2 ± 1.20,4.1 ± 0.19,3.3 ± 0.30,1.0 ± 0.01,separately,C-JUN protein expression levels were 2.25 ± 0.2,1.8 ± 0.13,1.4 ± 0.12,1.0 ± 0.09.P38, C-JUN mRNA and protein levels were significantly reduced in the three plasmid transfection groups compared with the empty load group (P<0.01).The expression of p38,C-JUN mRNA and protein were reduced to a lower degree in co-transfection group than in GM-CSF transfection group and IL-12 transfection group (P<0.01).Flow cytometer showed that the hepatoma cell apoptosis rate of the empty load group,GM-CSF transfection group,IL-12 transfection group,co-transfection group were (3.43±0.9)%,(5.87±1.02)%,(7.32±1.1)%,(17.47±2.11)%,the rates of the three plasmid transfection groups were significantly higher than that of the empty load group (P<0.01).And the apoptosis rate was significantly increased in the co-transfected group compared with other plasmid groups (P<0.01). Conclusion The combination of GM-CSF and IL-12 could significantly accelerate the apoptosis of hepatoma cells by up-regulating the expression of p53,and down-regulating the expression of p38 and C-JUN.
2. Clinicopathological characteristics and prognostic factors of cardial mixed adenoneuroendocrine carcinoma
Yangyang SUN ; Liulan QIAN ; Wenxian GU ; Gengfang WANG ; Wei GAO ; Xiang GENG ; Xudong ZHANG ; Xiaoli ZHOU
Chinese Journal of Digestive Surgery 2019;18(12):1163-1170
Objective:
To investigate the clinicopathological characteristics of cardial mixed adenoneuroendocrine carcinoma (MANEC) and analyze its prognostic factors.
Methods:
The retrospective and descriptive study was conducted. The clinicopathological data of 34 patients with primary cardial MANEC who were admitted to the Changzhou No.2 People′s Hospital of Nangjing Medical University from January 2008 to January 2018 were collected. There were 20 males and 14 females, aged from 39 to 81 years, with an average age of 66 years. All the 34 patients underwent resection of cardia cancer and postoperative pathological examination. Observation indicators: (1) surgery and treatment; (2) clinical manifestations and pathological conditions; (3) pathological examination of surgical resection specimens; (4) follow-up and survival; (5) analysis of prognostic factors. Follow-up using outpatient examination and telephone interview was conducted to detect the survival of patients and tumor recurrence and metastasis up to December 2018. Measurement data with normal distribution were represented as