1.Effect of celastrol in inhibiting metastasis of lung cancer cells by influencing Akt signaling pathway and expressing integrins.
Jia XU ; Chun-lian WU ; Jie HUANG
China Journal of Chinese Materia Medica 2015;40(6):1129-1133
Celastrol is a type of quinone methyl triterpene isolated from traditional Chinese medicine Tripterygium wilfordii, with pharmacological activities, like anti-inflammatory, immunosuppression and anti-tumor. This study focused on the effects of celastrol on adhesion, migration and invasion of lung cancer cells. The migration inhibition of lung cancer cells induced by celastrol was detected by the scratch test. The invasion inhibition of lung cancer cells induced by celastrol was measured by the transwell experiment. RT-PCR and Western blot were used to determine the effect of different concentrations of celastrol in integrin family and Akt signaling pathway in lung cancer cells. The results showed that celastrol inhibited adhesion, migration and invasion of lung cancer cells and expressions of integrins β3, β4, αv and phosphorylated Akt, GSK-3β, c-Raf, PDK1 in Akt signal pathway in a dose-dependent manner. Therefore, the study implies that Celastrol could inhibit the metastasis of lung cancer cells by suppressing Akt signaling pathway and expression of integrins.
Apoptosis
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drug effects
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Cell Line, Tumor
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Drugs, Chinese Herbal
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pharmacology
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Gene Expression Regulation, Neoplastic
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drug effects
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Humans
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Integrins
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genetics
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metabolism
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Lung Neoplasms
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genetics
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metabolism
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pathology
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physiopathology
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Neoplasm Metastasis
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Proto-Oncogene Proteins c-akt
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genetics
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metabolism
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Signal Transduction
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drug effects
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Triterpenes
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pharmacology
4.Chemical constituents from roots of Euphorbia songarica
Jia LIN ; Ning AN ; Chun-Yu LIU ; Li-Zhen XU ;
Chinese Traditional and Herbal Drugs 1994;0(04):-
Objective To study the chemical constituents from the roots of Euphorbia sonngarica. Methods Compounds were isolated by Sephadex LH-20,MPLC,and silica gel column chromatographies. Their structures were identified by spectral methods together with physicochemical analysis.Results Eleven compounds were isolated from the roots of E.sonngarica.They were identified as cryptomeridiol (Ⅰ),betulin(Ⅱ),betulinic acid(Ⅲ),3?-hydroxy-olean-12-en-28-oic acid(Ⅳ),7-oxo-?sitosterol (Ⅴ),erythrinasinate(Ⅵ),octaeosanoie acid(Ⅶ),1-octacosene(Ⅷ),24-methene-cycloartenol(Ⅸ),eu- phol(Ⅹ),?-sitosterol(Ⅺ).Conclusion CompoundsⅠ-Ⅷare isolated from this plant for the first time.
5.Seven emotions generation and five Zang-organs regulation machanism
Guang-Xin YUE ; Qi-Fu HUANG ; Jia-Xu CHEN ; Chun-Hua JIA ;
China Journal of Traditional Chinese Medicine and Pharmacy 2006;0(09):-
Seven emotions generation relates to the interaction between individual and external objective matters,which is accompanied with interaction between internal desire and external matters.The activity of seven emotions bases on essence of zang-fu organs,being regulated by five zang viscera.Heart is the upstream controller,liver is the key organ to maintain normal emotionds,spleen and stomach is the hub of emotional activities,lung is the auxiliary organ, kidney is origin of emotional generation.Five zang viscera's cooperation and interaction generate the seven emotions.
6.Mandibular-driven simultaneous maxillo-mandibular distraction for hemifacial microsomia with rapid prototyping technology.
Quan-Wen GAO ; Hui-Feng SONG ; Ming-Huo XU ; Chun-Ming LIU ; Jia-Ke CHAI
Chinese Journal of Plastic Surgery 2013;29(6):431-434
OBJECTIVETo explore the clinical application of mandibular-driven simultaneous maxillo-mandihular distraction to correct hemifacial microsomia with rapid prototyping technology.
METHODSThe patient' s skull resin model was manufactured with rapid prototyping technology. The osteotomy was designed on skull resin model. According to the preoperative design, the patients underwent Le Fort I osteotomy and mandibular ramus osteotomy. The internal mandible distractor was embedded onto the osteotomy position. The occlusal titanium pin was implanted. Distraction were carried out by mandibular-driven simultaneous maxillo-mandihular distraction 5 days after operation.
RESULTSThe distraction in five patients was complete as designed. No infection and dysosteogenesis happened. The longest distance of distraction was 28 mm, and the shortest distance was 16 mm. The facial asymmetry deformity was significantly improved at the end of distraction. The ocelusal plane of patients obviously improved.
CONCLUSIONSRapid prototyping technology is helpful to design precisely osteotomy before operation. Mandibular-driven simultaneous maxillo-mandibular distraction can correct hemifacial microsomia. It is worth to clinical application.
Face ; abnormalities ; surgery ; Facial Asymmetry ; congenital ; surgery ; Goldenhar Syndrome ; surgery ; Humans ; Hyperplasia ; surgery ; Mandible ; surgery ; Maxilla ; surgery ; Osteogenesis, Distraction ; methods ; Osteotomy ; methods ; Osteotomy, Le Fort
7.Effect of polydatin on learning and memory and expression of NR2B in the prefrontal cortex of rats with chronic alcoholism.
Chun-Yang XU ; Shuang LI ; Lu CHEN ; Fu-Jia HOU ; Rui-Ling ZHNG
Chinese Journal of Applied Physiology 2011;27(2):213-235
Alcoholism
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physiopathology
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prevention & control
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Animals
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Drugs, Chinese Herbal
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pharmacology
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Glucosides
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pharmacology
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Male
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Maze Learning
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drug effects
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Memory Disorders
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prevention & control
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Prefrontal Cortex
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metabolism
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physiopathology
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RNA, Messenger
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genetics
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metabolism
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Rats
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Rats, Sprague-Dawley
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Receptors, N-Methyl-D-Aspartate
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genetics
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metabolism
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Stilbenes
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pharmacology
8.Pharmacognostic identification of medicinal Asteropyrum plants in China.
China Journal of Chinese Materia Medica 2002;27(2):94-97
OBJECTIVETo offer evidences for quality control of medicinal Asteropyrum plants.
METHODPharmacognostic studies were made through field collection, market investigation, document utilization, comparative morphology and histology.
RESULTThe shape and properties, microscopic characteristics in root, rhizome, leaves were worked out.
CONCLUSIONAsteropyrum can be distinguished from close relative Coptis plants by microscopic and histology characteristics. Two species in Asteropyrum can also be identified by microscopic and histology characteristics, and the morphological and histology characteristics can be used as evidences for quality control of medicinal Asteropyrum plants.
Coptis ; anatomy & histology ; Pharmacognosy ; Plant Leaves ; chemistry ; Plant Roots ; chemistry ; Plants, Medicinal ; anatomy & histology ; Quality Control ; Ranunculaceae ; anatomy & histology ; Species Specificity
9.Construction and immunoscreening of cDNA library of Armillifer agkistrodontis nymphs
Ling-ling, ZHANG ; Jia-xu, CHEN ; Shao-hong, CHEN ; Jian, GUO ; Yu-chun, CAI
Chinese Journal of Endemiology 2012;31(6):599-603
Objective To construct cDNA entry library and cDNA expression library of Armillifer agkistrodontis (A.) nymphs and make a preliminary immunoscreening for the cDNA expression library.Methods The nymphs were collected from the Kunming mice infected experimentally with A.agkistrodontis eggs and the total RNA were extracted from the nymphs using TRIzol Reagent.After purifying the mRNA,the synthesized cDNAs were cloned into the donor vector pDONR222 by BP reaction of Gateway technology and the recombinants were transformed into the DH10B cells by electroporation,the cDNA entry library was obtained.Next,the expression vector pDEST17 was ligated with entry clones by LR reaction,and the recombinants were transformed into the BL21 (DE3) cells.Hence,the cDNA expression library was constructed.Then,the expression library was immunoscreened with the mixed sera of mice infected with A.agkistrodontis,and the insertions of positive clones were sequenced.After that,the open reading frame(ORF) of positive slone sequence,the homology of the screened genes and their encoded proteins were analyzed by Finder and BLAST (basic local alignment search tool) program of National Center of Biotechnology Information(NCBI),and the discovered new genes were submitted into the GenBank.Besides,the physico-chemical properties,secondary structure and B cell epitopes of encoded proteins were also analyzed by bioinformatics software.Results The average titer and total clones of the cDNA entry library were 1.45 × 105 CFU/ml(colony-forming unit,CFU) and 1.74 × 106 CFU,respectively,and the range of fragment length of the inserted cDNA was between 0.2-4.0 kb,with an average of 1.4 kb.The total clones of cDNA expression library were 1.00 × 105 CFU,and the fragment length of the inserted cDNA was between 0.3-2.2 kb,with an average of 1.0 kb.Five positive clones,coded S1,S5,A1,D1 and F1,respectively,were obtained through preliminary immunoscreening.The sequence and homology of the five positive clones were sequenced and analyzed by BLAST program.No significant similarities were found in pentastomida species,which meant that they were all novel genes of A.agkistrodontis.The gene sequences were submitted to GenBank,with the accession number from JQ180451 to JQ180455.Also,results obtained by bioinformatics software showed that the predictive encoding proteins were all potential to be valuable recombinant diagnostic antigens.Conclusions The cDNA library of A.agkistrodontis nymphs is successfully constructed,and five new genes of A.agkistrodontis are discovered.The establishment of cDNA library and the discovery of the new genes will lay a foundation for further studying the gene functions and screening the immunodiagnostic antigens.
10.Foam cells can be induced by oxidized low density lipoprotein in human monocyte-derived dendritic cells
Chun LIANG ; Yukun LUO ; Dong HUANG ; Qingzhe JIA ; Congfeng XU ; Keqiang WANG ; Zonggui WU ; Junbo GE
Chinese Journal of Pathophysiology 2000;0(10):-
AIM: The purpose of this study is to investigate the mechanisms related to oxidized low-density lipoprotein(ox-LDL) and dendritic cells(DCs) in the process of atherosclerosis.METHODS: Human DCs were prepared from human CD14~+ peripheral blood monocytes using rhGM-CSF((100 ?g/L)) and rhIL-4(40 ?g/L).Cells were incubated with(100 mg/L) native or oxidized LDL for 72 h.The formation of foam cells was investigated by electron microscopy and oil red O staining.Phenotypic and immune functional assays were used with FACS,FITC-dextran phagocytosis,allogeneic mixed T lymphocytes reaction and secretion of Th1/Th2(IL-12/IL-2) cytokines were also conduced.RESULTS: DCs treated with ox-LDL,but not native LDL were induced into foam cells after cultured for 72 h.Compared with native LDL,ox-LDL-treated DCs were less potent in FITC-dextran phagocytosis.ox-LDL promoted allogeneic T cells proliferation.Moreover,ox-LDL upregulated CD80(72.4? 9.6 vs 89.5?10.1,P