OBJECTIVE: To explore the antitumor effects of ethanol extract from Ventilago leiocarpa Benth (EEVLB) on sarcoma 180 (S180) tumor-bearing mice and the potential mechanism. METHODS: Sixty mice were randomly assigned to 6 groups according to a random number table: normal group, model group, 5-fluorouracil (5-FU) group (0.02 g·kg RESULTS: EEVLB with different concentrations achieved inhibition of tumor growth in vivo, wherein the high-dose group showed the most significant reduction in tumor weight and increased apoptosis of tumor cells (P<0.05). In addition, both net weight gain and spleen index of mice showed uptrend in EEVLB treatment groups (P<0.05). Besides, serum levels of IL-2 and IL-6, percentages of CD3 CONCLUSIONS EEVLB exhibits promising antitumor activity in vivo. This effect might be due to activation of apoptotic signaling pathway, increase of cytokine levels and enhancement of immune function in tumor-bearing mice.
Animals ; Cell Line, Tumor ; Ethanol ; Mice ; Plant Extracts/therapeutic use* ; Rhamnaceae ; Sarcoma 180/drug therapy*

To study the toxicity-decreasing and synergistic effect of intracellular and extracellular polysaccharides from Phellinus igniarius on S180 mice. The PIP and PIE were extracted from the products of liquid submerged fermentation of P. igniarius. Transplanting S180 mice tumor models were established so as to observe the changes in tumor inhibiting rate, indexes of the spleen and thymus, body weight, peripheral blood cells and IFN-gamma levels when CTX was used alone and when used in combination with the PIP and PIE from P. igniarius. The results indicate that the PIP and PIE from P. igniarius can increase the activity of body immunity, attenuate the toxicity of CTX as well, and improve the anti-tumor effects.
Animals ; Antineoplastic Agents ; isolation & purification ; pharmacology ; Basidiomycota ; chemistry ; classification ; isolation & purification ; Body Weight ; drug effects ; Cyclophosphamide ; pharmacology ; Disease Models, Animal ; Drug Synergism ; Female ; Interferon-gamma ; blood ; Male ; Medicine, Chinese Traditional ; Mice ; Neoplasm Transplantation ; Plant Extracts ; Polysaccharides ; isolation & purification ; pharmacology ; Random Allocation ; Sarcoma 180 ; drug therapy ; pathology ; Spleen ; pathology ; Thymus Gland ; pathology

OBJECTIVETo investigate the effects of sphingosine-1-phosphate (S1P) on cyclophosphamid (CTX) and cisplatin (DDP)-induced ovarian damage and on the efficacy of chemotherapy in mice bearing S180 murine sarcoma.

METHODSFifty-two female C57BL/6 mice were randomized into normal control group (n=10), tumor-bearing model group (n=14), CTX+DDP group (n=14), and S1P+CTX+DDP group (n=14). Before medication and on day 11 of medication during diestrus stage, the mice were sacrificed to measure the ovarian weight, numbers of primordial follicles and growing follicles, tumor weight, and serum levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH) and estradiol ( E2).

RESULTSAt day 11 of medication, the levels of serum FSH and E2, but not LH, showed significant differences in CTX+DDP group from those in the other groups (P<0.01). FSH, E2, and LH levels were comparable between S1P+CTX+DDP group and the control group (P>0.05). The number of primodial follicles and weight of ovaries in CTX+DDP group decreased significantly compared to those in the other groups (P<0.01). The number of growing follicles in CTX+DDP group was significantly lower than that in the control and model groups(P<0.01), but similar to that in S1P group (P>0.05). The number of primodial follicles and growing follicles and ovarian weight in S1P+CTX+DDP group were close to those in the control and model groups (P>0.05). In CTX+DDP and S1P+CTX+DDP groups, the tumor weight were significantly lower than that in the other two groups (P<0.01), and the tumor inhibition rates were both higher than 60%.

CONCLUSIONS1P can ameliorate chemotherapy-induced ovarian damage in mice without affecting the efficacy of chemotherapy.

Animals ; Antineoplastic Combined Chemotherapy Protocols ; adverse effects ; therapeutic use ; Cisplatin ; administration & dosage ; adverse effects ; Cyclophosphamide ; administration & dosage ; adverse effects ; Female ; Lysophospholipids ; therapeutic use ; Mice ; Mice, Inbred C57BL ; Primary Ovarian Insufficiency ; chemically induced ; prevention & control ; Sarcoma 180 ; drug therapy ; Sphingosine ; analogs & derivatives ; therapeutic use

OBJECTIVEThe synergic and decreasing toxic effects of mineral water and Chinese herbal compound preparation (MWCHCP) on cisplatin were investigated in sarcoma 180 (S180) mice.

METHODThe S180 mice were treated for 5 days with intraperitoneal injection of cisplatin(7.33 mg x kg(-1)) and oral administration of MWCHCP(1 925, 3 850, 7 700 mg x kg(-1)). Then the mice were killed and the tumor growth inhibition rate, organ index, diarrhea index were determined. Observe pathological sections of stomach to study the protective effect of MWCHCP. Reverse transcription-polymerase chain reaction (RT-PCR) was applied to investigate the tumour necrosis factor-alpha (TNF-alpha) expression level of the intestine.

RESULTCombining with cisplatin and MWCHCP caused a tendency of increasing the tumor growth inhibition rate and significant attenution of cisplatin-induced diarrhea, visceral organ injury, gastric mucosal injury and decreased TNF-alpha mRNA level of intestine.

CONCLUSIONThe present findings suggest that MWCHCP increases the inhibition rate of tumor growth of cisplatin and has a beneficial influence on gastrointestinal lesion induced by cisplatin.

Animals ; Antineoplastic Agents ; administration & dosage ; adverse effects ; Cisplatin ; administration & dosage ; adverse effects ; Disease Models, Animal ; Drug Synergism ; Drug Therapy, Combination ; Drug-Related Side Effects and Adverse Reactions ; Drugs, Chinese Herbal ; administration & dosage ; Humans ; Male ; Mice ; Mineral Waters ; administration & dosage ; Sarcoma 180 ; drug therapy ; pathology

To study the anti-tumor activity of Scurrula parasitica polysaccharides (SP). Water extraction and ethanol precipitation were used to isolate SP from S. parasitica leaf. S180, K562 and HL-60 cell lines proliferation inhibition by SP were detected by MTT assay. The expressions of Ki-67, Cyclin D1, Bax and Bcl-2 protein in the sarcoma S180 tissues were detected by immunohistochemistry technique to approach the anti-tumor mechanism of SP+ SP could not inhibit cancer cell proliferation. SP ip could inhibit the growth of sarcoma S180 in mice, 100 mg x kg(-1) x d(-1). SP ip was the optimal dose on inhibiting S180 growth, with the tumor inhibition rate of 54%. The expression of Ki-67, Cyclin D1, Bax and Bcl-2 protein in the sarcoma S180 tissues were detected by immunohistochemistry technique to approach the anti-tumor mechanism of SP. The result showed that SP could down-regulate the expression of Ki-67, CyclinD1 and Bcl-2 protein, and up-regulate the expression of Bax protein. It indicted that inhibiting cancer cell proliferation and promoting cancer cell apoptosis in vivo maybe one of the anti-cancer mechanisms of SP.
Animals ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Cyclin D1 ; metabolism ; Drugs, Chinese Herbal ; chemistry ; therapeutic use ; Female ; HL-60 Cells ; Humans ; Immunohistochemistry ; K562 Cells ; Loranthaceae ; chemistry ; Male ; Mice ; Plants, Medicinal ; chemistry ; Polysaccharides ; therapeutic use ; Proto-Oncogene Proteins c-bcl-2 ; metabolism ; Sarcoma 180 ; drug therapy ; metabolism ; bcl-2-Associated X Protein ; metabolism

OBJECTIVETo prepare anti-human IgG-dextran-adriamycin conjugate for immunotargeting of S180 sarcoma and assess its effects on the tumor weight and survival time of the tumor-bearing mice.

METHODSAnti-human IgG-dextran- adriamycin was synthesized by conjugating dextran and adriamycin with anti-human IgG. The immunoactivity of anti-human IgG-dextran-adriamycin was measured by enzyme-linked immunosorbent assay (ELISA), and the cytotoxicity of anti-human IgG, adriamycin, and the IgG-dextran-adriamycin conjugate against the tumor cells in vitro was evaluated using MTT assay. In mice bearing S180 sarcoma, the agents were tested for their effects against tumor cell growth and the survival time of mice.

RESULTSThe molar ratio of anti-mouse IgG, dextran, and adriamycin was 1:2.5:38 in the conjugate. The conjugates were shown to retain the immunoactivity of anti-human IgG, and possessed cytotoxicity to S180 cells in vitro. Administration of the conjugate and intratumor injection of human IgG resulted in a tumor suppression rate of 17.72%in mice bearing S180 sarcoma, but did not prolong the survival time of the mice.

CONCLUSIONThe anti-human IgG-dextran-adriamycin conjugate shows targeted antitumor effect against S180 sarcoma in mice.

Animals ; Antibodies, Anti-Idiotypic ; administration & dosage ; pharmacology ; Antibodies, Monoclonal ; administration & dosage ; pharmacology ; Antineoplastic Combined Chemotherapy Protocols ; therapeutic use ; Cell Survival ; drug effects ; Dextrans ; administration & dosage ; pharmacology ; Doxorubicin ; administration & dosage ; pharmacology ; Female ; Immunoglobulin G ; administration & dosage ; pharmacology ; Immunotoxins ; administration & dosage ; pharmacology ; Mice ; Sarcoma 180 ; drug therapy ; pathology ; Survival Analysis ; Tumor Burden ; drug effects

OBJECTIVETo study the anticancer action of Zuojinwan in mice transplanted with sarcoma 180 in vivo, and detect the activities of five kinds of tumor markers (TM) including acid phosphotase (ACP), alkaline phosphotase (AKP), creatine kinase (CK), aldolase (ALD) and lactate dehydrogenase (LDH) in serum compared with Coptis chinensis and Evodia rutaecarpa.

METHODThe transplanted S180 tumor mice model was established, and the mice were divided randomly five groups. The extract of Zuojinwan (850.8 mg kg(-1)), C. chinensis (729.2 mg kg(-1)) and E. rutaecarpa (121.6 mg kg(-1)) were administrated, respectively for 10 d. Then, the changes of body weight, spleen index of mice, the inhibition rates of tumor, and the increase of life span (ILS) were all tested. In addition, the activities of ACP, AKP, CK, ALD and LDH on different test groups were also determined.

RESULTZuojinwan could inhibit the S180 tumor growth significantly with the inhibition rate of 50.54% and the ILS of mice reached to 64.91%. Meanwhile, the activities of ACP (126.72 +/- 11.16) U 100 mL(-1) and AKP (67.27 +/- 13.49) U 100 mL(-1) were increased, and the activities of CK (20.65 +/- 4.28) U mL(-1), ALD (319.13 +/- 53.87) U L(-1) and LDH (1,029.04 +/- 468.56) U L(-1) were decreased significantly by Zuojinwan treated group compared with C. chinensis and E. rutaecarpa treated groups (P<0.01).

CONCLUSIONIn the prescription of Zuojinwan, the enhancement of compatibility of anticancer activity was observed by the interaction of C. chinensis and E. rutaecarpa. The mechanism might be in according with to influence the activities of the five kinds of tumor markers (TM) in mice serum.

Acid Phosphatase ; blood ; Alkaline Phosphatase ; blood ; Animals ; Antineoplastic Agents ; pharmacology ; Biomarkers, Tumor ; metabolism ; Coptis ; chemistry ; Creatine Kinase ; blood ; Drugs, Chinese Herbal ; pharmacology ; Evodia ; chemistry ; Female ; Fructose-Bisphosphate Aldolase ; blood ; L-Lactate Dehydrogenase ; blood ; Male ; Mice ; Neoplasm Transplantation ; Random Allocation ; Sarcoma 180 ; blood ; drug therapy ; pathology

Electrochemotherapy was instituted for sarcoma, and the tumor inhibitory ratio, curing ratio, vascular endothelial growth factor, microvessel density and mechanism were measured and analyzed. The results indicate that the curing ratio of electrochemotherapy for sarcoma is 84.6%. The present research provides experimental evidence for the security, mechanism and feasibility of electrochemotherapy in clinical practice.
Animals ; Antineoplastic Agents ; administration & dosage ; Bleomycin ; administration & dosage ; Drug Delivery Systems ; methods ; Electrochemotherapy ; methods ; Electroporation ; methods ; Mice ; Sarcoma 180 ; therapy ; Vascular Endothelial Growth Factor A ; analysis

OBJECTIVETo study the antitumor effect of saponin extracted from Tupistra chinensis Baker (STCB) against mouse sarcoma S-180 cell proliferation in vitro and in vivo and explore the primary mechanism of this effect.

METHODSCytotoxic effect of STCB on S-180 cells in vitro was evaluated by MTT colorimetry, and its effect against in vitro tumor growth was tested in Kunmin mice bearing S-180 implanted tumor. The morphological and ultrastructural changes of S-180 cells after saponin treatment in vitro were examined with light and transmission electron microscope. Flow cytometry was performed to examine the cell cycle and apoptosis of S180 cells treated with different concentrations of STCB with propidium iodide staining.

RESULTSSTCB could markedly inhibit S-180 cell proliferation in vitro with 50% inhibitory concentration of 34.64 microg/ml. STCB given by intragastric administration also significantly inhibited the growth of S-180 solid tumor, and the inhibition rate exceeded 30% at the dose of 0.5 g/kg, reaching 54.86% at 2 g/kg. Electron microscopy and flow cytometry revealed increased S180 tumor cell apoptotic rate with the increment of saponin concentration, along with increased percentage of cells in S phase and decreased cells in G(2)/M phase in response to 10 or 30 microg/ml STCB treatment. At the concentration of 60 microg/ml, however, STCB resulted in an opposite effect on the cell cycles, presumably due to its interference with mitosis at high concentrations.

CONCLUSIONSSTCB inhibits the growth of S-180 cells both in vivo and in vitro possibly by inducing cell apoptosis and interfering with the cell cycle progression of the tumor cells.

Animals ; Antineoplastic Agents, Phytogenic ; pharmacology ; therapeutic use ; Apoptosis ; drug effects ; Cell Cycle ; drug effects ; Cell Line, Tumor ; Cell Proliferation ; drug effects ; Drugs, Chinese Herbal ; pharmacology ; therapeutic use ; Liliaceae ; chemistry ; Male ; Mice ; Phytotherapy ; Saponins ; pharmacology ; therapeutic use ; Sarcoma 180 ; drug therapy ; pathology

OBJECTIVETo study the erythrocyte immuno-regulatory effect of Patrinia scabra Bunge extracts extracted by macroporous adsorptive resins in tumor bearing mice.

METHODSPatrinia scabra Bunge was extracted by macroporous adsorptive resins, and the amount of polysaccharides and saponins in the extract were determined. Mice bearing S180 tumor were treated with the extract and their survival prolongation rate, erythrocyte rosette formation rates of C3b receptor (ERR-CR), immune complex (ERR-IC) and tumor cell (ERR-TC), as well as the CD35 and CD44s were observed.

RESULTSPolysaccharide content was 21.4%, saponin 41.8% in the extract. As compared with the model group, the survival rate was increased, the erythrocyte immune function was improved (showed increase of ERR-CR and ERR-TC, decrease of ERR-IC), and the amount of CD35 and CD44s in red blood cell membrane increased in mice after being treated with the extract (P < 0.05 or P < 0.01).

CONCLUSIONExtract of Patrinia scabra Bunge extracted by macroporous adsorptive resins can regulate the erythrocyte immune function to a certain extent.

Adsorption ; Animals ; Antineoplastic Agents, Phytogenic ; therapeutic use ; Drugs, Chinese Herbal ; therapeutic use ; Erythrocytes ; cytology ; drug effects ; immunology ; Female ; Male ; Mice ; Patrinia ; chemistry ; Plant Extracts ; chemistry ; therapeutic use ; Receptors, Complement 3b ; immunology ; Resins, Synthetic ; chemistry ; Rosette Formation ; Sarcoma 180 ; drug therapy ; immunology