In regenerating liver of mice, marked increase of the activity of phosphotyrosyl protein phosphatase (PTPP) in cytosol was observed. The PTPP activity varied with time and reached the highest level between 24 to 48 ho...In regenerating liver of mice, marked increase of the activity of phosphotyrosyl protein phosphatase (PTPP) in cytosol was observed. The PTPP activity varied with time and reached the highest level between 24 to 48 hours after partial hepatectomy. In H22a cells the PTPP activity found in every subcellular fraction was lower than that of the normal liver. The PTPP activity was mostly concentrated in lysosomes of normal liver, but mainly distributed in nucleus, cytosol and microsome of regenerating liver. In H22a cells PTPP activity seemed distribute evenly. Five similar major PTPP peaks (I-V) were obtained on DEAE cellulose chromatography of cytosols from all three of liver cells studied. However, two additional PTPP peaks, a and b, were also obtained from cytosol of liver.展开更多
In this study, we found, through biochemical synthesis of DNA with the incorporation of ~3HTdR and morphological observation of the tumor cells, that aidiron (912), an extract from earthworm, had a stronger kilting ef...In this study, we found, through biochemical synthesis of DNA with the incorporation of ~3HTdR and morphological observation of the tumor cells, that aidiron (912), an extract from earthworm, had a stronger kilting effect (27%) on mouse ascitic hepatoma tumor cells (H_(22)) in vitro, and that laser-hematoporphyrin derivative (HpD) combined with 912 markedly enhanced the kilting effect (74%) on tumor cells. By means of the fluoresoence spectrophotography we also dis- covered that the killing effect of laser-HpD-912 on tumor calls was closely related with the produc- tion of free radicals and lipid peroxidation.展开更多
Objective: To observe the effect of acumoxi (acupuncture and moxibustion) on macrophage (Mφ)-lL1-Th net-work and hydroperitoneum hepatoma (H 22) metastasis in mice. Methods: A total of 36 BALB/ c male mice bearing H ...Objective: To observe the effect of acumoxi (acupuncture and moxibustion) on macrophage (Mφ)-lL1-Th net-work and hydroperitoneum hepatoma (H 22) metastasis in mice. Methods: A total of 36 BALB/ c male mice bearing H 22 are randomly divided into control, acupuncture and acumoxi groups with 12 cases in each group. In the later 2 groups, Dazhui (GV 14) and Guanyuan (CV 4) are punctured once daily, continuously for 18 days, and in acumoxi group, the two acupoints were also moxibustioned alternatively with moxa stick once every day. After killing the mice, the tissue samples of the 3 groups are treated routinely step by step and analyzed by means of colorimetric analysis for determining the phagocytic function of the macrophages; and the content of IL1 of the Mφ supernatant is assayed with serum plate agglutination (SPA)-Ig floral hoop method of T helper cell (Th) monoclonal antibody; the weight of the reniportal lymph node, the kidney and the lung, and the number of the cancerous nodes on the pulmonary surface are calculated. Results: After acupuncture and moxibustion treatment, the immunoregulatory network indices of acumoxi group increase obviously compared with those of control group(P<0.01), showing an anti-metastasis effect of acumoxi on H 22. Conclusion: Results of the present study and those of our former research prove that acupuncture and moxibustion can suppress the tumor growth and H 22 metastasis by the enhancement of the immunoregulatory network.展开更多
文摘In regenerating liver of mice, marked increase of the activity of phosphotyrosyl protein phosphatase (PTPP) in cytosol was observed. The PTPP activity varied with time and reached the highest level between 24 to 48 hours after partial hepatectomy. In H22a cells the PTPP activity found in every subcellular fraction was lower than that of the normal liver. The PTPP activity was mostly concentrated in lysosomes of normal liver, but mainly distributed in nucleus, cytosol and microsome of regenerating liver. In H22a cells PTPP activity seemed distribute evenly. Five similar major PTPP peaks (I-V) were obtained on DEAE cellulose chromatography of cytosols from all three of liver cells studied. However, two additional PTPP peaks, a and b, were also obtained from cytosol of liver.
文摘In this study, we found, through biochemical synthesis of DNA with the incorporation of ~3HTdR and morphological observation of the tumor cells, that aidiron (912), an extract from earthworm, had a stronger kilting effect (27%) on mouse ascitic hepatoma tumor cells (H_(22)) in vitro, and that laser-hematoporphyrin derivative (HpD) combined with 912 markedly enhanced the kilting effect (74%) on tumor cells. By means of the fluoresoence spectrophotography we also dis- covered that the killing effect of laser-HpD-912 on tumor calls was closely related with the produc- tion of free radicals and lipid peroxidation.
文摘Objective: To observe the effect of acumoxi (acupuncture and moxibustion) on macrophage (Mφ)-lL1-Th net-work and hydroperitoneum hepatoma (H 22) metastasis in mice. Methods: A total of 36 BALB/ c male mice bearing H 22 are randomly divided into control, acupuncture and acumoxi groups with 12 cases in each group. In the later 2 groups, Dazhui (GV 14) and Guanyuan (CV 4) are punctured once daily, continuously for 18 days, and in acumoxi group, the two acupoints were also moxibustioned alternatively with moxa stick once every day. After killing the mice, the tissue samples of the 3 groups are treated routinely step by step and analyzed by means of colorimetric analysis for determining the phagocytic function of the macrophages; and the content of IL1 of the Mφ supernatant is assayed with serum plate agglutination (SPA)-Ig floral hoop method of T helper cell (Th) monoclonal antibody; the weight of the reniportal lymph node, the kidney and the lung, and the number of the cancerous nodes on the pulmonary surface are calculated. Results: After acupuncture and moxibustion treatment, the immunoregulatory network indices of acumoxi group increase obviously compared with those of control group(P<0.01), showing an anti-metastasis effect of acumoxi on H 22. Conclusion: Results of the present study and those of our former research prove that acupuncture and moxibustion can suppress the tumor growth and H 22 metastasis by the enhancement of the immunoregulatory network.