1.Effects of simvastatin on PI3K/AKT signaling pathway in human acute monocytic leukemia cell line SHI-1.
Mei ZENG ; Wei-Ying GU ; Ting-Xiu JIANG ; Zi-Xing CHEN ; Guo-Qiang QIU ; Man LI ; Hao-Qing WU ; Zhi-Lin WANG ; Xiao-Bao XIE ; Xiang-Shan CAO
Journal of Experimental Hematology 2012;20(2):268-272
To investigate the effects of 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitor simvastatin (SV) on proliferation, apoptosis and the PI3K/AKT signaling pathway in human acute monocytic leukemia cell line SHI-1. SHI-1 cells were incubated with different concentrations of SV (5, 10, 15 µmol/L). Otherwise, SHI-1 cells without any treatment were used as control. Cells in different groups were collected at 24, 48 and 72 h after incubation for further detection. MTT method was used to assay the growth inhibition rate and flow cytometry was used to detect the early stage apoptosis ratio. The human PI3K-AKT Signaling Pathway RT(2) Profiler(TM) PCR Array was used to detect the expression of 84 genes involved in PI3K-AKT signaling. The results indicated that the SV inhibited the proliferation and inducted the apoptosis of SHI-1 cells in time- and dose-dependent manners significantly. The growth inhibition rates of SHI-1 cells treated with 15 µmol/L SV for 24, 48 and 72 h were 26.82, 47.09 and 63.92, respectively; and their early stage apoptosis ratios were 5.75, 13.25 and 15.59, respectively. Compared with the control group, expression levels of 39 genes were changed in the group of 15 µmol/L SV at 48 h, among them 26 genes were down-regulated and 13 genes were up-regulated. It is concluded that the SV can inhibit proliferation and induce apoptosis of SHI-1 cells, and the mechanism may be associated with the changes of gene expression level in PI3K-AKT signaling pathway regulated by SV.
Apoptosis
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drug effects
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Cell Line, Tumor
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Cell Proliferation
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drug effects
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Down-Regulation
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Gene Expression Regulation, Leukemic
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Humans
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Leukemia, Monocytic, Acute
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metabolism
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Phosphatidylinositol 3-Kinases
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metabolism
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Proto-Oncogene Proteins c-akt
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metabolism
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Signal Transduction
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drug effects
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Simvastatin
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pharmacology
2.Reevaluation for systematic reviews for traditional Chinese medicine injections for coronary disease.
Xiu-Ping YIN ; Yan-Ming XIE ; Xing LIAO ; Man LUO
China Journal of Chinese Materia Medica 2016;41(22):4259-4266
To reevaluate the systematic reviews for traditional Chinese medicine(TCM) injections for treating coronary disease, data in four Chinese databases and PubMed, Embase, Cochrane Library, Wed of Science OVID from inception until May 2016 were searched. We extracted data according to the AMSTAR and PRISMA checklists to evaluate the methodological quality and reporting characteristics of included literatures. A total of 69 systematic reviews were included, involving 24 TCM injections, which showed certain efficacy in treating coronary disease, and whose main outcome indexes included alleviation of symptoms of angina pectoris and electrocardiogram. In all of the systematic reviews, the duration of follow-up were not reported. Six systematic reviews reported TCM typing. In the 44 system reviews, 1 335 reports mentioned 4 137 adverse events. According to the results of AMSTAR and PRISMA checklists, the quality assessment scores about included studies were not high, and most of the systematic reviews suffered heterogeneity and irrational processing of forest plots. In conclusion, TCM injections in the treatment of coronary disease have a wide range and positive effects. However, affected by the low quality of systematic reviews and the production of reevaluation, the study had some limitations. Therefore, the systematic reviews shall be further improved, in order to provide more advanced clinical evidences to clinicians.
3.Severe hereditary coagulation factor V deficiency caused by two novel heterozygous mutations.
Rong-fu ZHOU ; Qi-hua FU ; Xiu-cai XU ; Wen-bin WANG ; Wen-man WU ; Qiu-lan DING ; Shuang XIE ; Zhi-min ZHAI ; Yi-qun HU ; Xue-feng WANG ; Jing-sheng WU ; Hong-li WANG
Chinese Journal of Hematology 2005;26(3):129-132
OBJECTIVETo identify gene mutations of a pedigree with inherited factor V (FV) deficiency.
METHODSThe activated partial thromboplastin time (APTT), prothrombin time (PT), FV activity (FV:C) and FV antigen (FV:Ag) tests were performed for phenotypic diagnosis. The genomic DNA was extracted from the peripheral blood of the proband and all the 25 exons and their flanks of FV gene were amplified by polymerase chain reaction (PCR). The PCR products were screened by direct sequencing and the mutations were further confirmed by restriction enzyme digestion.
RESULTSAPTT, PT, TT, FV:C, FV:Ag of the proband were 249.2 s, 46.6 s, 17.9 s, 0.1% and 1.5%, respectively. FII, FVII, FVIII, FIX, FX activities, vWF and Fg were within normal ranges. Taking the GenBank Z99572 sequence as the reference, four mutations were identified in FV gene of the proband. They were a heterozygous two bases deletion in exon 13 (2238 approximately 2239delAG) introducing a frameshift and a premature stop at codon 689, and a heterozygous missense mutation in exon 23 (G6410T) resulting in the substitution of Gly for Val at codon 2079, respectively. The proband's father and mother were heterozygous for G6410T and for 2238 approximately 2239delAG, respectively.
CONCLUSIONThe severe FV deficiency of the proband is caused by a frameshift mutation of 2238 approximately 2239delAG and a missense mutation of G6410T, which haven't been identified before.
Adult ; Base Sequence ; DNA Mutational Analysis ; Exons ; genetics ; Factor V ; genetics ; metabolism ; Factor V Deficiency ; genetics ; Female ; Frameshift Mutation ; Heterozygote ; Humans ; Infant ; Male ; Mutation, Missense ; Partial Thromboplastin Time ; Pedigree ; Phenotype ; Prothrombin Time ; Thrombin Time
5.Holistic evaluation of San-Huang Tablets using a combination of multi-wavelength quantitative fingerprinting and radical-scavenging assays.
Yan WANG ; Guo-Xiang SUN ; Yang JIN ; Xiu-Man XIE ; Ying-Chun LIU ; Di-Di MA ; Jing ZHANG ; Jia-Yue GAO ; Yan-Fei LI
Chinese Journal of Natural Medicines (English Ed.) 2017;15(4):310-320
The present study was designed to establish a multi-wavelength quantitative fingerprinting method for San-Huang Tablets (SHT), a widely used and commercially available herbal preparation, where high performance liquid chromatography (HPLC) with a diode array detector (DAD) was employed to obtain the fingerprint profiles. A simple linear quantitative fingerprint method (SLQFM) coupled with multi-ingredient simultaneous determination was developed to evaluate the quality consistency of the tested samples qualitatively and quantitatively. Additionally, the component-activity relationship between chromatographic fingerprints and total radical-scavenging capacity in vitro (as assessed using the 1, 1-diphenyl-2-picrylhydrazyl (DPPH) assay) was investigated by partial least squares regression (PLSR) analysis to predict the antioxidant capacity of new samples from the chromatographic fingerprints and identify the main active constituents that can be used as the target markers for the quality control of SHT. In conclusion, the strategy developed in the present study was effective and reliable, which can be employed for holistic evaluation and accurate discrimination for the quality consistency of SHT preparations and other traditional Chinese medicine (TCM) and herbal preparations as well.
Antioxidants
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chemistry
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Biphenyl Compounds
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chemistry
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Chemistry Techniques, Analytical
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methods
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Chromatography, High Pressure Liquid
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methods
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Drugs, Chinese Herbal
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chemistry
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Free Radicals
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chemistry
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Molecular Structure
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Picrates
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chemistry
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Quality Control
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Tablets
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chemistry