2.Advances on PI3K/Akt/mTOR signalling pathway in malignancies.
Chinese Journal of Pathology 2005;34(10):674-676
Antibiotics, Antineoplastic
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therapeutic use
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Apoptosis
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Cell Cycle
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Humans
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Neoplasms
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drug therapy
;
metabolism
;
pathology
;
Neovascularization, Pathologic
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etiology
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Phosphatidylinositol 3-Kinases
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metabolism
;
Protein Kinases
;
physiology
;
Proto-Oncogene Proteins c-akt
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metabolism
;
Signal Transduction
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Sirolimus
;
therapeutic use
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TOR Serine-Threonine Kinases
5.Therapeutic effect of a natural squamosamide derivative FLZ on Parkinson's disease model mice induced by LPS plus MPTP.
Linghong YU ; Huailing WEI ; Xiuqi BAO ; Dan ZHANG ; Hua SUN
Acta Pharmaceutica Sinica 2013;48(10):1557-62
The aim of this study is to investigate the protective effect of N-[2-(4-hydroxyphenyl)ethyl]-2-(2, 5-dimethoxyphenyl)-3-(3-methoxy-4-hydroxyphenyl)acrylamide (FLZ), a novel synthetic squamosamide cyclic derivative, against Parkinson's disease (PD) model mice induced by the inflammatory bacterial endotoxin, lipopolysaccharides (LPS) and the neurotoxin 1-methy-4-phenyl-1, 2, 3, 6-tetrahydropyridine (MPTP). C57/BL mice were ip injected LPS (5 mg x kg(-1)) once. One week following the LPS injection, mice received a subcutaneous injection of MPTP (25 mg x kg(-1)) once daily for 2 days. Eight weeks later, FLZ (25, 50 and 75 mg x kg(-1)) was orally administered to mice once daily for 60 days. The motor ability of the mice was evaluated by rod climbing test and footprint test. The dopamine (DA) levels in mouse striatum were determined by high performance liquid chromatography system. The tyrosine hydroxylase (TH)-positive cells were showed by immunohistochemical analysis. FLZ treatment significantly improved motor dysfunction of mice challenged by LPS plus MPTP. The increase of TH-positive cell numbers and elevation of DA levels may be contributed to the beneficial effects of FLZ on motor behavior. This study showed FLZ has significant therapeutic effect on LPS plus MPTP induced chronic PD model, which indicates its potential as a new candidate drug to treat PD.
6.Signet ring cell carcinoma arising from mature cystic teratoma of the ovary.
Hong-fang ZHENG ; Bao-yu JIANG ; Dan-hua SHEN
Chinese Journal of Pathology 2005;34(9):610-611
Adult
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Antineoplastic Agents
;
therapeutic use
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Carcinoembryonic Antigen
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metabolism
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Carcinoma, Signet Ring Cell
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drug therapy
;
metabolism
;
pathology
;
surgery
;
Cell Transformation, Neoplastic
;
pathology
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Cisplatin
;
therapeutic use
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Female
;
Humans
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Hysterectomy
;
Keratin-20
;
metabolism
;
Ovarian Neoplasms
;
drug therapy
;
metabolism
;
pathology
;
surgery
;
Teratoma
;
drug therapy
;
metabolism
;
pathology
;
surgery
7.The role of heat shock protein 70 in regulating neuroinflammation.
Wen-wen YU ; Xiu-qi BAO ; Hua SUN ; Dan ZHANG
Acta Pharmaceutica Sinica 2015;50(8):945-950
Neurodegenerative disease is characterized by progressive loss of neurons in specific brain regions that results in neuronal dysfunction of the central nervous system. Although the pathological mechanism is not fully established, the activation of glial cells mediated neuroinflammation appears to be involved. Heat shock protein 70 (HSP70) is originally described as intracellular chaperone, which plays an important role in protein quality control in cells. However, recent study showed that up-regulation of HSP70 had anti-inflammatory effects in the brain. HSP70 protected neurons from damage and improved neurological function by decreasing inflammatory response as indicated by inactivation of glial cells and inhibition of pro-inflammatory cytokine release. So it is of great significance to find new compounds targeting at HSP70 as neuroprotective agents to delay the progress of neurodegenerative disease. This review will focus on the role of HSP70 in neuroinflammation and the recent advances in using HSP70 as a target for the treatment of neurodegenerative disease.
Brain
;
physiopathology
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Cytokines
;
HSP70 Heat-Shock Proteins
;
physiology
;
Humans
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Inflammation
;
pathology
;
Neurodegenerative Diseases
;
physiopathology
;
Neurons
;
pathology
;
Neuroprotection
;
Up-Regulation
8.The role of heat shock protein 70 in regulating neuroinflammation.
Wenwen YU ; Xiuqi BAO ; Hua SUN ; Dan ZHANG
Acta Pharmaceutica Sinica 2015;50(8):945-50
Neurodegenerative disease is characterized by progressive loss of neurons in specific brain regions that results in neuronal dysfunction of the central nervous system. Although the pathological mechanism is not fully established, the activation of glial cells mediated neuroinflammation appears to be involved. Heat shock protein 70 (HSP70) is originally described as intracellular chaperone, which plays an important role in protein quality control in cells. However, recent study showed that up-regulation of HSP70 had anti-inflammatory effects in the brain. HSP70 protected neurons from damage and improved neurological function by decreasing inflammatory response as indicated by inactivation of glial cells and inhibition of pro-inflammatory cytokine release. So it is of great significance to find new compounds targeting at HSP70 as neuroprotective agents to delay the progress of neurodegenerative disease. This review will focus on the role of HSP70 in neuroinflammation and the recent advances in using HSP70 as a target for the treatment of neurodegenerative disease.
10.Detection of agent "zhuanggenling" and investigation of utilization of plant growth retardants in traditional Chinese medicine cultivation.
Yu-yao ZHAI ; Bao-lin GUO ; Wen-hua HUANG
China Journal of Chinese Materia Medica 2015;40(3):414-420
Plant growth retardant as one of plant growth regulator can inhibit the cell division, elongation and growth rate in shoot apical meristem (SAM), which can be reversed by gibberellin regulate the product of photosynthesis transfer to the root and rhizome part. As commonly used plant growth retardant, paclobutrazol, uniconazole, chlorocholine chloride, mepiquat chloride, choline chloride and daminozide are used to promote the growth of root and rhizome, call as "zhuanggenling", "pengdasu", "pengdaji" etc. Single or recombination of plant growth regulator is registered as pesticide, and called as pesticide "zhuanggenling" in this paper. Growth regulator which registered as a foliar fertilizer or fertilization was called agricultural fertilizer "zhuanggenling" in this paper. The author investigate the usage of "zhuanggenling" in the root and rhizome of medicinal plants cultivation from 2012 to 2014 in Sichuan province, Huangyuan town, Mianyang (Ophiopogonis Radix); Pengzhou Aoping town (Chuanxiong Rhizoma); Pengshan Xiejia town (Alismatis Rhizoma); Jiangyou Taiping town and Zhangming town (Aconiti Lateralis Radix Praeparata); Yunnan Wenshan (Notoginseng Radix et Rhizoma); Henan province, Wuzhidafeng Town (Rehmanniae Radix, Achyranthis Bidentatae Radix, Dioscoreae Rhizoma); Gansu Min county (Codonopsis Radix, Angelicae Sinensis Radix); Gansu Li county (Rhei Radix et Rhizoma). The result showed that "zhuanggenling" were applied in the most medicinal plant cultivation except Rhei Radix et Rhizoma. It has been applied widespreadly in Ophiopogonis Radix, Alismatis Rhizoma, Achyranthis Bidentatae Radix, Codonopsis Radix; Rehmanniae Radix, commonly in Angelicae Sinensis Radix application, and occasionally in Chuanxiong Rhizoma, Aconiti Lateralis Radix Praeparata, Notoginseng Radix et Rhizoma and Dioscoreae Rhizoma. In 53 collected sample from plantation areas, fifteen (28%) were pesticide "zhuanggenling", thirty-eight (72%) were pesticide "zhuanggenling". UPLC analysis results showed that 38 farmers fertilizer "zhuanggenling" content of 6 kinds of plant growth retardant. It is regarded that fertilizer "zhuanggenling" was dominant in medicinal plant cultivation, and that the plant growth retardant is added widespreadly in farm fertilizer "zhuanggenling". All evidence proves conclusively that "zhuanggenling" have been used in the proper way, whereas some others have been misused or even abused in the use regarding to type, number, use frequency. The root or rhizoma are increased to 20%-200%. But there is lack of evaluation to appraise the quality of medicinal materials from the aspects of research or industry. "zhuanggenling" has become a important Chemical control material besides fertilizer, insecticidal sterilization of pesticide
China
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Fertilizers
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Medicine, Chinese Traditional
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Plant Growth Regulators
;
pharmacology
;
Plants, Medicinal
;
growth & development