Ganoderma lucidum(Leyss．Ex fr．)Karst．(Lingzhi) is a medicinal fungus with a long history in China as a valuable tonic remedy．Modern Pharmacological and clinical investigation demonstrated that Lingzhi had anti-tumor activities．Recently the antitumor effects of extract of Ganoderma lucidum(GLE) and Ganoderma polysaccharides B(GL-B) and its mechanism were investigated．The results demonstrated that GLE and GL-B significantly inhibited growth of implanted sarcoma 180 in vivo．GL-B also promoted anti-tumor activity induced by cyclophosphamide in mice in vivo．GLE and GL-B directly adding to tumor cells-cultured medium neither suppressed sarcoma 180 and HL-60 proliferation nor induced apoptosis of both tumor cells in vitro．However the serum from GLE and GL-B treated mice can suppress S-180 and HL-60 cells proliferation and induced its apoptosis in vitro．Furthermore splenocytes conditioned medium with GL-B (GL-B-S-CM) and peritoneal macrophages conditional medium with GL-B (GL-B-PM-CM) also significantly inhibited HL-60 proliferation and induced its apoptosis in vitro．Further study indicated that GLE and GL-B could promote TNFa production from murine peritoneal macrophages and IFNg production from murine spleen cells in vitro．Finally GLE and GL-B could promote TNFa mRNA expression in murine peritoneal macrophages and IFNg mRNA expression in murine spleen cells．The results suggest that the anti-tumor effect of Ganoderma lucidum relates to activating macrophage and spleen cell，then promoting TNFa mRNA expression and IFNg mRNA expression，finally resulting TNFa and IFNg release．

The anti-tumor effect of Ganoderma(Lingzhi) is closely related to immunoregulation. Based on our research and other references,this article discussed the antitumor effect of Ganoderma mediated by immunological mechanism, including promoting the function of mononuclear-macro?phages,and natural killers,promoting maturation and differentiation of dendritic cells,increasing its antigen presentation,activating lymphocytes and increasing cytotoxicity of cytotoxin T lymphocyte, promoting production of cytokines,inhibiting tumor escape from immune surveillance. Also, clinical studies with immunological indexes were reviewed.

"Deng Xiaoping Theory and the Important Thought of 'Three Represents'" is a politically and theoretically compulsory curriculum for the students of the medicine colleges and universities.It mainly functions as the guidance on the political conception and the cultivation of the students' spirits of humanism.Influenced by five factors such as the quality of the teaching staff,the teaching effect of the curriculum is not so satisfying.In consideration of the issues in teaching,the writer figures that they will be improved from such aspects as recombining human resources and adjusting lecture system.

Objective:To investigate the effects of rapamycin on allograft rejecti on and immune response in mice. Methods:The heterotopic ear-hea rt grafting or sk in grafting were done in mice. The delayed type hypersensitivity (DTH) response i nduced by dinitro-fluorobenzene (DNFB), the production of hemolysin of mouse sensitized by sheep red blo od cell (SRBC) and the neutral red phagocytosis of the peritoneal macrophage wer e also tested in mice. Results:RAPA significantly blocked allograft reject ion of heart and skin, markedly inhibited DTH response and decreased the production of hemolysin,but had no significant effect on the neutral red phagocytosis of the p eritoneal macrophage. Conclusion:RAPA potently blocked allograft rej ections in mi ce and suppressed cellular and humoral immune response, but had no significant e ffect on phagocytoses of macrophage.

AIM To study the effects of RAPA on lymphocyte proliferation induced by mitogen and in mixed lymphocyte reaction(MLR), and the effects on T subpopulation and the content of IL 2,IFN ?,TNF ? in mice. METHODS Lymphocyte proliferation induced by mitogens and MLR were detected with MTT colometeric assay. T cell subsets were measured with fluorescence activated cell sorter (FACs). IL 2,IFN ? and TNF ? were detected by ELISA and biological assay. RESULTS RAPA inhibited murine lymphocyte proliferation induced by Con A, PHA or LPS, and also inhibited lymphocyte proliferation stimulated in MLR. RAPA had no significant effect on murine spleenic T lymphocyte subpopulation. RAPA inhibited ConA induced production of IL 2 of IFN ? by murine splenocytes, but had not inhibited LPS induced TNF ? production by murine peritoneal macrophage. CONCLUSION The immunosuppressive mechanism of RAPA is distinct from CsA.

AIM: To investigate the free radical scavenging activity of Ganoderma lucidum polysaccharides peptide (GLPP) on peritoneal macrophages in mice. METHODS: Alloxan and tert butylhydroperoxide (tBOOH) were used as an oxidant to injury peritoneal macrophages in vivo in mice or in vitro, respectively. 2', 7' dichlorodihydrofluorescein diacetate (DCHF DA) was used as fluorescent probe. The fluorescence from cells was observed under the laser confocal microscope. Time series scan of conforcal microscope was used to observe the changes of fluorescence by GLPP in mice peritoneal macrophages over time. RESULTS: The results of confocal microscopy showed that GLPP (100 mg?kg -1 , ig for 5 d ) lowed fluorescence in the mice macrophages injured by alloxan (75 mg?kg -1 iv). GLPP (10 mg?L -1 ) also lowed fluorescence in the mice macrophages injured by tBOOH ( 7.76 ?10 -5 mol?L -1 ) in vitro as well. Time series scan showed that GLPP (10 mg?L -1 ) lowed fluorescence in the mice macrophages at rest state or during the respiratory burst induced by PMA (50 nmol?L -1 ). CONCLUSION: GLPP shows antioxidant effects and might have free radical scavenging effects on peritoneal macrophages in mice.

Object To study the chemical constituents from fruiting bodies of Ganoderma lucidum (Leyss ex Fr.) Karst Methods Individual constituent was isolated and repeatedly purified on silica gel column and structurally elucidated by the NMR spectra and X ray diffraction analysis Results Four compounds were obtained from the alcohol extract and identified as 3? oxo formyl 7?, 12? dihydroxy 4, 4, 14? trimethyl 5? chol 11, 15 dioxo 8 en (E) 24 oic acid (Ⅵ); 3? oxo formyl 7?, 12? dihydroxy 5? lanost 11, 15, 23 trioxo 8 en (E) 26 oic acid (Ⅶ); ergosterol (Ⅷ) and ergosta 7, 22 dien 3? ol (Ⅸ), respectively Conclusion Compound Ⅵ and Ⅶ are new triterpenes

Recently, the pharmacological study of Ganoderma spores and active components has be-come a focus of attention in the world. The present reviewis based on the auctorial research on Ganoder-maspores. It involves pharmacological effects of Ganodermaspores and its active components, includingimmunomodulating effect, antitumor activity and its mechanismin vivoandin vitro, liver-protectiveeffect, gastric ulcer preventing effect, serum glucose and blood fat depressing effects, anti-hypoxia andscavenging free redical, etc. The possible problems and their solutions in this research area are also dis-cussed.

Aim To study the protective effects of Ganoderma lucidum polysaccharides peptide(GLPP)on ECV304 from oxidative injury.Methods Cultured ECV304 were injured by oxygen free radicals derived from tBOOH.Various concentrations of GLPP(12.5,25,50,100 mg?L-1)were added into culture medium.The survival rate of cells was measured by MTT assay.The morphological change of cells and injury of mitochondria were examined under the light and electron microscopes.The percentage of apoptosis of ECV304,labeled with AnnexinV/PI,was measured by flow cytometry.Results GLPP(12.5,25,50,100 mg?L-1)could reduce oxidative injury induced by tBOOH in ECV304 cells.The survival rate of cells treated with GLPP increased.The light microscopic examination showed that the injured cells decreased in GLPP-treated groups.Under the electron microscope it was found that GLPP(50 mg?L-1,incubated for 24 h)could protect the organelle such as mitochondria from oxidative injury and cells from apoptosis by tBOOH.The result of flow cytometry showed that the total percentage of apoptosis in control,GLPP and injury treated group was 2.24%?0.43%,24?6.4%(P

AIM: To investigate the effect of (Ganoderma lucidum ) polysaccharides (Gl-PS) on the insulin-releasing function of pancreati c islets. METHODS: Pancreatic islets were isolated and incubated with 5.6 or 16.7 mmol?L -1 glucose and different concentratio ns of Gl-PS for 1 h. Then the insulin was examined. Verapamil, and verapamil co mbined EGTA were used to testify whether the insulin-releasing effect of Gl-PS was inhibited by these inhibitors. The effects of Gl-PS on protein expression of the glucose transporter 2(GLUT2) under 5.6 and 16.7 mmol?L -1 glucose were also investigated. RESULTS: Gl-PS stimulated th e insulin release when incubated with the glucose of 5.6 or 16.7 mmol ?L -1 . The insulin releasing effect of Gl-PS was partly inhibited by ve rapamil and completely inhibited by verapamil+EGTA. Gl-PS could promote the GLU T2 protein expression of pancreatic islets under glucose of 5.6 and 16.7 mmol?L -1 . CONCLUSION: Gl-PS possesses insulin-rele asing effect under the glucose of 5.6 and 16.7 mmol?L -1 due t o the promotion of the GLUT2 protein expression and the subsequent facilitation of Ca 2+ inflow into the pancreatic B cells.