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Objective To investigate the expression of FNDC5 in hepatocellular carcinoma (HCC) and its relationship with clinicopathological characteristics and prognosis of HCC patients.Methods Immunohistochemistry and qRT-PCR were used to detect the expression of FNDC5 in HCC tissues,and the relationship between its expression and clinicopathological parameters and prognosis.Results FNDC5 was mainly expressed in the cytoplasm of HCC cells,weakly expressed in the nucleus.Among the 30 liver cancer tissues,FNDC5 was weakly positive in 5,positive in 19,and strongly positive in 6 cases.QRT-PCR assay showed that FNDC5 was highly expressed in HCC tissues with vascular invasion.The incidence of vascular invasion in the high-expression of FNDC5 was 30％ (9/30),which was significantly higher than that of the FNDC5 low-expression group [6.7％ (2/30),] and the difference was significant (x2 =15.026,P ＜0.05).There was no significant correlation between FNDC5 level and age,sex,HBsAg,and alpha-fetoprotein (AFP) level in HCC (P ＞ 0.05).Conclusion FNDC5 level in the liver cancer tissues is closely related to the occurrence of vascular invasion.
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Objective@#To investigate the expression and distribution of FNDC5/Irisin in pancreatic cancer tissues and adjacent tissues, and to analyze its correlation with clinicopathological features.@*Methods@#Collection of archived wax blocks from 64 patients diagnosed with pancreatic cancer after surgical treatment from January 2015 to December 2018 in the Department of Pathology, Affiliated Qingdao Municipal Hospital of Qingdao University, and 30 tissues collected intraoperatively from January 2016 to December 2018 Samples, all collected samples included tumor tissue and corresponding adjacent tissues (>2 cm from the tumor edge). Real-time quantitative PCR (qRT-PCR) and immunohistochemistry were used to detect the expression of FNDC5/Irisin mRNA and its positivity in pancreatic cancer tissues and adjacent tissues, and to analyze its relationship with clinicopathological features of pancreatic cancer.@*Results@#qRT-PCR showed that the expression of FNDC5/Irisin mRNA in pancreatic cancer tissues was higher than that in the corresponding adjacent pancreatic tissues, the difference was statistically significant (P<0.05). The immunohistochemistry results showed that the positivity of FNDC5/Irisin in pancreatic cancer tissues was 59.4%, and the positivity of FNDC5/Irisin in adjacent tissues was 28.1%, and the positivity of FNDC5/Irisin in cancer tissues and adjacent pancreatic tissues was significantly different (P<0.05); the expression level of FNDC5/Irisin was not related with the gender, age, tumor size, degree of differentiation, and tumor stage.(P>0.05), but FNDC5/Irisin expression was associated with liver and lymph node metastasis (P<0.05).@*Conclusion@#The positivity of FNDC5/Irisin in pancreatic cancer tissues is significantly higher than that in adjacent pancreatic tissues, and it is correlated with liver and lymph node metastasis in pancreatic cancer.
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0bjective To investigate the expression and distribution of FNDC5/Irisin in pancreatic cancer tissues and adjacent tissues.and to analyze its correlation with clinicopathological features.Methods Collection of archived wax blocks from 64 patients diagnosed with pancreatic cancer after surgical treatment from January 2015 to December 2018 in the Department of Pathology,Affiliated Qingdao Municipal Hospital of Qingdao University,and 30 tissues collected intraoperatively from January 2016 to December 2018 Sam-ples,all collected samples included tumor tissue and corresponding adjacent tissues(＞2 am from the tumor edge).Real-time quantitative PCR(qRT-PCR)and immunohistochemistry were used to detect the expres-sion of FNDC5/Irisin mRNA and its positivity in pancreatic cancer tissues and adjacent tissues.and to ana-1yze its relationship with clinicopathological features of pancreatic cancer.Results qRT-PCR showed that the expression of FNDC5/Irisin mRNA in pancreatic cancer tissues was higher than that in the corresponding adjacent pancreatic tissues,the difference was statistically significant(P＜0.05).The immunohistochemis-try results showed that the positivity of FNDC5/Irisin in pancreatic cancer tissues was 59.4％.and the posi-tivity of FNDC5/Irisin in adjacent tissues was 28.1％.and the positivity of FNDC5/Irisin in cancer tissues and adjacent pancreatic tissues was significantly different(P＜0.05):the expression level of FNDC5/Irisin was not related with the gender,age,tumor size,degree of differentiation,and tumor stage.(P＞0.05),but FNDC5/Irisin expression was associated with liver and lymph node metastasis(P＜0.05).Conclusion The positivity of FNDC5/Irisin in pancreatic cancer tissues is significantly higher than that in adjacent pan-creatic tissues.and it is correlated with liver and lymph node metastasis in pancreatic cancer.
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BACKGROUND: Mesenchymal stem cells can protect and repair the liver of rats with liver failure, but the mechanisms are not completely clear. OBJECTIVE: To explore the protective effects and related mechanisms of intravenous injection of human adipose-derived mesenchymal stem cells on acute liver failure in rats. METHODS: Thirty-six Sprague-Dawley rats (provided by Qingdao Daren Fucheng Animal Husbandry Co., Ltd. in China) were randomly divided into control group, model group and transplantation group. Animal models of acute liver failure were established by intraperitoneal injection of D-galactosamine in the model group and the transplantation group. One day after modeling, the rats in the transplantation group were injected with human adipose-derived mesenchymal stem cell suspension, and those in the model group were injected with the same amount of saline. After 1 and 3 days of cell transplantation, the serum levels of alanine aminotransferase, aspartate aminotransferase, and total bilirubin were measured. Three days after cell transplantation, the serum levels of tumor necrosis factor-α, interleukin-6 and interleukin-10 were detected, the pathological changes of the rat liver were observed by hematoxylin-eosin staining, and the activity of glycogen synthase kinase-3β protein in the liver tissue was detected by western blot. RESULTS AND CONCLUSION: Compared with the model group, there was a significant reduction in the serum levels of alanine aminotransferase, aspartate aminotransferase, total bilirubin, tumor necrosis factor-α, interleukin-6 and interleukin-10 in the transplantation group (P < 0.05). Inflammation and necrosis of liver tissues in the transplant group were alleviated compared with the model group. The activity of glycogen synthase kinase 3β in the liver tissue of the transplanted group was lower than that of the model group (P < 0.05). Overall, these results indicate that human adipose-derived mesenchymal stem cells can alleviate hepatic inflammation and pathological injury, and improve the liver function in rats with acute hepatic failure. Moreover, the mechanism may be related to the inhibition of glycogen synthase kinase 3β activity.
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BACKGROUND: Mesenchymal stem cells can protect and repair the liver of rats with liver failure, but the mechanisms are not completely clear. OBJECTIVE: To explore the protective effects and related mechanisms of intravenous injection of human adipose-derived mesenchymal stem cells on acute liver failure in rats. METHODS: Thirty-six Sprague-Dawley rats (provided by Qingdao Daren Fucheng Animal Husbandry Co., Ltd. in China) were randomly divided into control group, model group and transplantation group. Animal models of acute liver failure were established by intraperitoneal injection of D-galactosamine in the model group and the transplantation group. One day after modeling, the rats in the transplantation group were injected with human adipose-derived mesenchymal stem cell suspension, and those in the model group were injected with the same amount of saline. After 1 and 3 days of cell transplantation, the serum levels of alanine aminotransferase, aspartate aminotransferase, and total bilirubin were measured. Three days after cell transplantation, the serum levels of tumor necrosis factor-α, interleukin-6 and interleukin-10 were detected, the pathological changes of the rat liver were observed by hematoxylin-eosin staining, and the activity of glycogen synthase kinase-3β protein in the liver tissue was detected by western blot. RESULTS AND CONCLUSION: Compared with the model group, there was a significant reduction in the serum levels of alanine aminotransferase, aspartate aminotransferase, total bilirubin, tumor necrosis factor-α, interleukin-6 and interleukin-10 in the transplantation group (P < 0.05). Inflammation and necrosis of liver tissues in the transplant group were alleviated compared with the model group. The activity of glycogen synthase kinase 3β in the liver tissue of the transplanted group was lower than that of the model group (P < 0.05). Overall, these results indicate that human adipose-derived mesenchymal stem cells can alleviate hepatic inflammation and pathological injury, and improve the liver function in rats with acute hepatic failure. Moreover, the mechanism may be related to the inhibition of glycogen synthase kinase 3β activity.
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Objective To investigate the effect of Irisin on proliferation,apoptosis,migration and invasion of human cholangiocarcinoma cell line Hucct-1.Methods After treatment with Irisin,CCK-8 assay and flow cytometry assay were conducted to investigate the effect of Irisin on proliferation and apoptosis of cholangiocarcinoma cells.Scratch test and transwell invasion assay were used to studythe effect of Irisin on the migration and invasion ability of cholangiocarcinoma cells.Western blot was utilized to detect the expression of E-cadherin,N-cadherin and Vimentin in cholangiocarcinoma cells.Results CCK-8 assay showed that Irisin inhibited cholangiocarcinoma cell proliferationin a dose-dependent manner.Flow cytometry assay showed that the apoptosis rate of Irisin group [(14.8 ±0.9)％] was higher than that in the control group [(5.4±0.6)％],(P＜0.05).The scratch test showed that the rate of cell scratch healing in Irisin group [(15.0± 1.0)％] was significantly lower than that in the control group [(28.0±2.0)％] (P＜0.05).Transwell invasion test showed that the number of cells in Irisin group was (96.0±7.0),which was significantly lower than that in control group (155.0± 9.0) (P＜0.05).Western blot showed that the expression of E-cadherin increased and N-cadherin and Vimentin decreased after Irisin treatment.Conclusion Irisin inhibits proliferation,migration and invasion and promote apoptosis of cholangiocarcinoma cells.
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Irisin, a newly discovered cytokine induced by exercises, is proteolytically cleaved from fibronectin type ? domain-containing 5 (FNDC5). Irisin is widely distributed and has the functions including browning white adipose tissues, ameliorating insulin resistance and improving cognition. However, the latest studies have found that irisin is closely associated with the occurrence and development of various tumors, suggesting that irisin may be a potential target for tumor diagnosis and treatment. Therefore, it is significant to study the relationship between irisin and tumors for the prevention and treatment of tumor. This paper summarizes the progress in the role of irisin in tumors.