Your browser doesn't support javascript.
Show: 20 | 50 | 100
Results 1 - 4 de 4
Add filters

Year range
Article in Chinese | WPRIM | ID: wpr-887948


Tumor metastasis is an important cause of tumor treatment failure. Its molecular mechanism is closely related to tumor cells remodeling immune cells and immunosuppressive microenvironment, so as to create a suitable soil for tumor cell invasion and growth. "Huoxue Huayu" is one of the important therapeutic principles in cancer treatment, but the influence of Huoxue drugs on tumor metastasis has been controversial in clinical application. In this paper, we systematically summarized the comparative study of Huoxue drugs and Yiqi Huoxue drugs in tumor metastasis in recent years, and discussed the differences of molecular mechanisms of Huoxue drugs and Yiqi Huoxue drugs in anti-tumor metastasis from the perspective of immune remodeling, so as to provide scientific basis for clinical rational application of Huoxue drugs and Yiqi Huoxue drugs.

Chinese Journal of Surgery ; (12): 45-47, 2010.
Article in Chinese | WPRIM | ID: wpr-254830


<p><b>OBJECTIVE</b>To report the experiences of the diagnosis and treatment of primary lymphoma of the small intestine (PSIL).</p><p><b>METHODS</b>The clinical data of 15 patients with PSIL treated from January 2003 to July 2007 was investigated retrospectively. Of the 15 cases, 9 patients were male and 6 were female, the average age was 51.6 years (range, 18 - 73 years). Data of gender, age, clinical manifestation, laboratory examination, imageology examination, diagnosis and treatment of the patients was reviewed.</p><p><b>RESULTS</b>The most common clinical manifestations were as follow: abdominal pain, abdominal lump, bowel obstruction, gastrointestinal hemorrhage and athrepsy. Serum tumor markers were checked normal. All the 15 cases were found with tumor by spiral CT, and 12 cases were diagnosed as PSIL. Eleven cases were given Ba-meal examinations, and positive results was found in 4 cases, and only 1 case was considered to be PSIL. All the 15 patients received operation. All the patients were diagnosed as non-Hodgkin lymphoma (NHL) by postoperative pathology (8 patients as diffuse large B-cell lymphoma, 5 as mucosa associated lymphoid tissue type B cell lymphoma and 2 as enteropathy-type intestinal T cell lymphoma). No perioperative death occurred. Ten patients received adjuvant chemotherapy with the regimen of CHOP (cyclophosphamide + epirubicin + vincristine + prednisone) after the operation. Fourteen cases were followed-up for a mean time of 30 months (range, 6 - 52 months). The 1- and 3-years survival rate was 85.7% and 57.1%, respectively.</p><p><b>CONCLUSIONS</b>PSIL has no specific clinical manifestations, the diagnostic rate with barium study is low, spiral CT scan is a promising diagnostic method for PSIL. Operation combined with chemotherapy is important for PSIL.</p>

Adolescent , Adult , Aged , Female , Follow-Up Studies , Humans , Intestinal Neoplasms , Diagnosis , Therapeutics , Intestine, Small , Pathology , Lymphoma , Diagnosis , Therapeutics , Male , Middle Aged , Retrospective Studies , Young Adult
Chinese Journal of Surgery ; (12): 369-372, 2009.
Article in Chinese | WPRIM | ID: wpr-238891


<p><b>OBJECTIVE</b>To investigate the stimulated effect of liver regeneration on colon cancer cells in remnant liver in rats.</p><p><b>METHODS</b>Rat models with liver metastases or retro-peritoneal metastases of colon cancer were established: animals underwent 37% or 70% liver resection and were compared with a sham laparotomy (15, 25, 15 cases, respectively). Metastases were performed two weeks before resection. Rats were killed 3 weeks after the resection. Total body weight, liver and tumor weights were recorded. The human colon adenocarcinoma cell line Lovo was cultured in the presence of portal serum withdrawn 24 hours and 14 days after partial hepatectomy (PH). DNA synthesis was assessed by flow cytometry analysis for 5-Bromodeoxyuridine (5-BrdU) incorporation.</p><p><b>RESULTS</b>The tumor growth was accelerated in the remnant liver in 70% PH group, but the tumors in 37% PH group and retro-peritoneal site were not influenced by PH. Compared with the control group, after cultured 72 hours with portal serum withdrawn 24 h after PH, a higher 5-BrdU incorporation was found in the Lovo cell lines (P < 0.05), and it reached the peak after 120 hours of culture (P < 0.05). No difference was found between the groups when cultured with the portal serum withdrawn 14 d after PH (P > 0.05).</p><p><b>CONCLUSIONS</b>PH may accelerate the growth of residual microscopic tumor in the liver which contributes to local recurrence. It has no systemic effect and effects on the cancer cell lines in extrahepatic sites. The excision extension is related to the stimulating effects on the cancer cell line, and subtotal hepatectomy is presumably a major determinant.</p>

Animals , Cell Line, Tumor , Colonic Neoplasms , Pathology , Hepatectomy , Humans , Liver , Liver Neoplasms, Experimental , Pathology , General Surgery , Liver Regeneration , Neoplasm Recurrence, Local , Rats , Rats, Wistar , Xenograft Model Antitumor Assays
Chinese Journal of Hepatology ; (12): 184-187, 2008.
Article in Chinese | WPRIM | ID: wpr-332287


<p><b>OBJECTIVE</b>To study the relationship between the dynamic changes of caveolin-1 with the degrees of liver fibrosis and portal venous pressure (PVP) in the process of rat liver cirrhosis formation induced by dimethylnitrosamine (DMN); also to investigate the mechanisms of caveolin-1 in the regulation of endothelial nitric oxide synthase (eNOS).</p><p><b>METHODS</b>Liver cirrhosis was induced in rats by DMN. The degrees of liver fibrosis and PVP were measured. NOS activity was assessed by citrulline generation. Protein expressions of caveolin-1, eNOS and caveolin-1-eNOS interactions were examined by Western blot and immunoprecipitation, respectively.</p><p><b>RESULTS</b>Four weeks after DMN administration, liver fibrosis was at its peak and then decreased gradually. Immunoprecipitation and Western blot demonstrated that there was enhanced binding of caveolin-1 with eNOS in the process of rat liver cirrhosis. An increase in caveolin-1 expression was detected but the expression of eNOS was lower in cirrhotic tissues than in normal liver tissues. Caveolin-1 protein levels were positively correlated with the degrees of liver fibrosis and the levels of PVP (r=0.967, P < 0.01; r=0.922, P < 0.01, respectively), while NOS catalytic activity was negatively correlated with the degrees of liver fibrosis and levels of PVP (r= 0.973, P < 0.01; r=-0.947, P < 0.01) respectively.</p><p><b>CONCLUSIONS</b>Caveolin-1 upregulation is associated with the development of portal hypertension in liver cirrhosis. Over-expression of caveolin-1 in perisinusoidal cells may promote caveolin-1-eNOS binding and reduce the activity of eNOS.</p>

Animals , Caveolin 1 , Metabolism , Hypertension, Portal , Metabolism , Liver Cirrhosis, Experimental , Metabolism , Nitric Oxide Synthase Type III , Metabolism , Rats , Rats, Wistar