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ObjectiveTo compare and observe the effect of Reduning injection （mainly clearing heat）， Shenfu injection （mainly warming Yang） combined with gefitinib on the proliferation， apoptosis， stemness characteristics and metabolism of lung cancer cells. MethodDifferent non-small cell lung cancer （NSCLC） cell lines were selected and intervened with gefitinib （5， 10， 20 μmol·L-1）， Reduning injection （0.6%， 0.9%）， Shenfu injection （0.6%， 0.9%）， gefitinib combined with Reduning injection， and gefitinib combined with Shenfu injection. Cell proliferation in each group was detected by cell counting kit-8 （CCK-8） assay， and cell apoptosis was detected by flow cytometry. The mRNA and protein expressions of lung cancer stem cell markers sex determining region Y-box 2 （Sox2） and aldehyde dehydrogenase family 1 member A1 （ALDH1A1） were determind by real-time quantitative polymerase chain reaction （Real-time PCR） and Western blot， respectively. The redox ratio of lung cancer cells was observed by femtosecond label-free imaging （FLI） and energy metabolism instrument was used to determine the glycolysis level in cells. ResultCompared with the blank group， Reduning injection reduced the survival rate of lung cancer cells （P<0.05）， increased the apoptosis rate （P<0.05）， down-regulated the mRNA and protein expressions of Sox2 and ALDH1A1 （P<0.05）， and up-regulated the redox ratio of cells （P<0.05）， while Shenfu injection exerted no remarkable effect on the above indexes. In addition， compared with gefitinib alone， Reduning injection combined with gefitinib inhibited the survival rate of lung cancer cells （P<0.05）， promoted the cell apoptosis （P<0.05）， down-regulated the mRNA and protein expressions of Sox2 and ALDH1A1 （P<0.05）， up-regulated the redox ratio of cells （P<0.05）， and lowered the proton efflux rate of glycolysis （P<0.05）， while Shenfu injection combined with gefitinib failed to affect these indexes of lung cancer cells significantly. ConclusionReduning injection may inhibit stemness characteristics of tumor cells by regulating their metabolism to enhance the proliferation-inhibiting and pro-apoptotic effects of gefitinib on lung cancer cells， while Shenfu injection had no significant enhancing effect on gefitinib. This indicates that epidermal growth factor receptor tyrosine kinase inhibitors （EGFR-TKIs） should be used in combination with heat-clearing Chinese medicines.
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This study reported a case about a 30-year-old pregnant woman with placental teratoma. The presumptive diagnosis of placental teratoma was made based on the abnormal echo detected on the placental surface by ultrasound at 33 + gestational weeks. MRI examination also suggested the possibility. She had an otherwise uneventful pregnancy and puerperium and gave birth to a healthy newborn vaginally at 40 +4 gestational weeks. A smooth oval-shaped nodule covered by skin was visualized at the edge of the placenta, and pathological results suggested a mature cystic teratoma. The causes of placental teratoma remain unclear, and no obvious clinical symptoms are identified. Typically, it has no adverse effects on the mother and baby. A combination of ultrasound and MRI is critical to determine the nature of the tumor prenatally, but the gold standard for diagnosis relies on placental pathology.
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Objective To investigate the relationship between serum levels of oxidative stress indicators and the degree of renal interstitial fibrosis in patients with IgA nephropathy (IgAN).Methods Seventy eight patients with confirmed primary IgAN in General Hospital of Ningxia Medical University from January 2013 to December 2014 were enrolled.The patients were divided into T0 group (n=30),T1 group (n=26) and T2 group (n=22) according to the grade of tubular atrophy/interstitial fibrosis of Oxford pathological classification criteria for IgAN in 2009.Meanwhile,thirty cases of health examiner were enrolled as control subjects.The levels of serum malondialdehyde (MDA),superoxide dismutase (SOD),catalase (CAT) and glutathione peroxidase (GSH-Px) were detected by xanthine oxidase method,thiobarbituric acid spectrophotometry method,ultraviolet spectrophotometry method,chemical colorimetric method,respectively.The levels of serum advanced oxidation protein products (AOPPs),transforming growth factor beta 1 (TGF-β1),monocyte chemotactic protein 1 (MCP-1),transforming growth factor alpha (TGF-α),interleukin 6 (IL-6) and hypoxia inducible factor 1 alpha (HIF-1α) were detected by enzyme linked immunosorbent assay (ELISA) in all groups.Spearman correlation analysis was used to analyze the correlation between serum oxidative stress indicators and traditional risk factors of tubular atrophy/renal interstitial fibrosis.Multivariable linear regression analysis was used to analyze the correlation between oxidative stress indicators and degree of renal tubular atrophy/renal interstitial fibrosis.Results There were differences in serum levels of AOPPs,MDA,SOD,CAT and GSH-Px in IgAN patients with different degrees of renal interstitial fibrosis (all P ＜ 0.05).With the increase of renal interstitial fibrosis,the levels of AOPPs and MDA increased gradually,while the levels of SOD,CAT and GSH-Px decreased gradually.Serum AOPPs,MDA,SOD,CAT,GSH-Px concentration in IgAN patients were correlated with the mean arterial pressure (MAP),total blood protein (TP),albumin (Alb),Scr,uric acid (UA),24-hour urinary protein volume and estimated glomerular filtration rate (eGFR).Multivariate regression analysis showed that the AOPPs levels of blood were positively correlated with MAP,Scr,UA and 24-hour urinary protein (all P ＜ 0.01),and negatively correlated with TP,Alb,eGFR (all P ＜ 0.05).The serum levels of AOPPs and MDA in IgAN patients were positively correlated with the levels of TGF-β1,MCP-1,TGF-α,IL-6 and HIF-1α.The levels of SOD,CAT and GSH-Px were negatively correlated with the levels of TGF-β1,MCP-1,TGF-α,IL-6 and HIF-1α.Multivariate stepwise regression analysis showed that the degree of renal interstitial fibrosis in IgAN patients was positively correlated with serum AOPPs level (β=0.285,P=0.001),negatively correlated with CAT (β=-0.346,P ＜ 0.001),GSH-Px (β=-0.303,P ＜0.001).Conclusions The level of serum oxidative stress in IgAN patients is elevated and positively correlated with the degree of renal interstitial fibrosis,suggesting that oxidative stress may be involved in the occurrence and development of renal interstitial fibrosis.
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Histone lysine specific demethylase 1 (LSD1) has been recognized as an important modulator in post-translational process in epigenetics. Dysregulation of LSD1 has been implicated in the development of various cancers. Herein, we report the discovery of the hit compound (IC = 3.93 μmol/L) and further medicinal chemistry efforts, leading to the generation of compound (IC = 49 nmol/L, and = 16 nmol/L), which inhibited LSD1 reversibly and competitively with H3K4me2, and was selective to LSD1 over MAO-A/B. Docking studies were performed to rationalize the potency of compound . Compound also showed strong antiproliferative activity against four leukemia cell lines (OCL-AML3, K562, THP-1 and U937) as well as the lymphoma cell line Raji with the IC values of 1.79, 1.30, 0.45, 1.22 and 1.40 μmol/L, respectively. In THP-1 cell line, significantly inhibited colony formation and caused remarkable morphological changes. Compound induced expression of CD86 and CD11b in THP-1 cells, confirming its cellular activity and ability of inducing differentiation. The findings further indicate that targeting LSD1 is a promising strategy for AML treatment, the triazole-fused pyrimidine derivatives are new scaffolds for the development of LSD1/KDM1A inhibitors.
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OBJECTIVE:To optimize the purification technology of total saponins from Asparagus cochinchinensis with macro-reticular resin. METHODS:Using content of total saponins from A. cochinchinensis as index,single factor test was used to investi-gate the macroreticular resin model,sampling adsorption time,mass concentration of the column,adsorption capacity,volume frac-tion and the amount of elution solvent,elution rate,and optimize the purification technology. And verification test was conducted. RESULTS:HPD-300 macroreticular resin showed strong absorption and desorption property. The optimal purification technology was that sampling adsorption time was 60 min,mass concentration of sample liquid was 0.1 g/mL,adsorption capacity was 120 mL(15 BV),it was eluded with 60% ethanol solution with 3 BV and elution rate was 4 BV/h. In the verification test,the average desorption rate of total saponins was 68.30%(RSD=0.95%,n=3). CONCLUSIONS:Optimized purification technology is sta-ble,feasible,and can easily separate and purify the total saponins from A. cochinchinensis.
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Objective:To compare the volatile chemical constituents from the shell and kernel of Caesalpinia minax Hance.Methods:The volatile chemical compositions of Caesalpinia minax Hance were obtained by organic solvent-wet distillation and were analyzed by GC-MS equipped with a elastic quartz capillary column HP-5MS 5%Phenyl Methyl Siloxane(30m?0.25mm?0.25?m).The constituents were identified by their mass spectra.The relative percentage of the volatile constituents was calculated from the GC peak areas.Results:One hundred and fifteen kinds of chemical constituents in the shell of Caesalpinia minax Hance were separated and sixty-three of them,which accounts for 54.7%of total volatile constituents, were characterized.There are five kinds whose relative contents were more than 2.0%.One hundred and two kinds of chemical constituents in the kernel of Caesalpinia minax Hance were separated and fifty-one of them,which accounts for 50.0%,were characterized.There are seven kinds whose relative contents were more than 2.0%.Form the shell and kernel of Caesalpinia minax Hance there were forty kinds of chemical constituents the same.The most relative contents were Limonene(5.31%,shell)and 1-Hexanol(12.94%,kernel).Conclusion:This paper reports,for the first time,the comparison of volatile constituents from shell and kernel of Caesalpinia minax Hance.It is helpful for controlling the quality and further researching of Caesalpinia minax Hance.