AIM： To investigate the anti-neoplastic effect of inositol hexaphosphate （InsP6 or phytic acid） on dimethylhydrazine （DMH）-induced colon tumor in rats and its effect on blood natural killer （NK） cell activity. ...AIM： To investigate the anti-neoplastic effect of inositol hexaphosphate （InsP6 or phytic acid） on dimethylhydrazine （DMH）-induced colon tumor in rats and its effect on blood natural killer （NK） cell activity. METHODS： Healthy Wistar rats, 4 wk old, were divided into control group （fed with common food） and InsP6 group （fed with common food＋2% sodium inositol hexaphosphate in the drinking water）, 15 rats in each group. Both groups were injected with 1,2-dimethylhydrazine subcutaneously （20 mg/kg body weight） once a week for 20 wk. Rats were killed after 21 wk. The whole large intestine was isolated to determine the general condition of tumors and to test blood NK cell activity by lactate-dehydrogenase-release assay. RESULTS： Administration of InsP6 significantly increased blood NK cell activity in DMH-induced colorectal tumor in rats. InsP6 group had a smaller tumor size on average and a smaller number of tumors than the control group. Its mortality was also higher than that in control. However, the variables of body weight and tumor incidence were not significantly different between the two groups. CONCLUSION： InsP6 can increase blood NK cell activity in DMH-induced colon tumor in rats and inhibit tumor growth and metastasis in rats.展开更多
We present a case of a 40-year-old woman with smallcell carcinoma (SCC) of the rectum. She had profuse bleeding in rectum for 5 d. By colonoscopy, polyps were determined in the rectum and biopsies were carried out.His...We present a case of a 40-year-old woman with smallcell carcinoma (SCC) of the rectum. She had profuse bleeding in rectum for 5 d. By colonoscopy, polyps were determined in the rectum and biopsies were carried out.Histopathologically, the polyps were adenomatous. Because of the profuse bleeding in rectum, she underwent low anterior resection. After the diagnosis of SCC, she received intravenous chemotherapy with standard doses of siklofosfamid, adriamycin, and vepesid. Nevertheless,intracranial metastases were revealed and she died 6 mo after the operation.展开更多
Objective: Colon cancer metastasis is the key in fertility rate of colon cancer. Many recent results about metastasis research indicated that EMMPRIN played an important role in cancer metastasis. So, we designed this...Objective: Colon cancer metastasis is the key in fertility rate of colon cancer. Many recent results about metastasis research indicated that EMMPRIN played an important role in cancer metastasis. So, we designed this experiment to investigate whether EMMPRIN can enhance the metastatic ability of murine colon adenocarcinoma cell, CT26. Methods: EMMPRIN was over expressed in CT26 cells through transfecting pCMV-HA2-EMMPRIN into the CT26 cells. Invasion assay, wound migration assay and adhesion assay were utilized to analyze the metastasis of CT26 cells in vitro after EMMPRIN over expression. Results: After EMMPRIN over expression, invasion assay showed that invasive cells were 103.33 + 8.49 in EMMPRIN group and 48.67 + 5.3 in control group (P < 0.001). Migration assay showed that migrating cells were 40.67 + 2.49 in EMMPRIN group and 18.33 + 2.05 in control group (P < 0.001). CCK-8 absorbance value in adhesion assay were 3.33 + 0.17 in EMMPRIN group and 2.10 + 0.22 in control group (P < 0.001). Conclusion: Over expression of EMMPRIN could enhance the CT26 cell capacity of invasion and migration, and inhibit CT26 cell capacity of adhesion remarkably. The results suggest that EMMPRIN may be involved in cancer metastasis and play an important role in promotion of cancer metastasis.展开更多
The small bowel metastases from head and neck regions are extremely rare. The diagnosis and treatment of such kind of small bowel metastases remain unclear. This paper reports on a 53-year-old case with small intestin...The small bowel metastases from head and neck regions are extremely rare. The diagnosis and treatment of such kind of small bowel metastases remain unclear. This paper reports on a 53-year-old case with small intestine perforation caused by metastasis from squamous cell carcinoma of scalp. After surgical treatment, the patient had a relatively better survival. This paper shares the clinical experience we have learned from managing this patient in hope that it will help other medical professionals in oncology to recognize the disease.展开更多
MicroRNAs (miRNAs) constitute a class of small non-coding RNAs that function as posttranscriptional gene regulators. The dysregulation of miRNAs has been linked to a series of diseases, including various types of canc...MicroRNAs (miRNAs) constitute a class of small non-coding RNAs that function as posttranscriptional gene regulators. The dysregulation of miRNAs has been linked to a series of diseases, including various types of cancer. Since their discovery in the miRNAs of cancer patients, there has been a steady increase in the study of miRNAs as stable, noninvasive biomarkers. Although several challenges remain to be concerned, miRNAs could be useful, non-invasive biomarkers for colorectal cancer diagnostics and prognosis. In this review, we summarized the discovery of miRNAs and their potential as biomarkers. We discussed their possible structural, function and further emphasized the significance of miRNAs in colorectal cancer (CRC).展开更多
基金Supported by the Health Bureau Foundation of Province Shandong,No. 1999CA2CBA2
文摘AIM： To investigate the anti-neoplastic effect of inositol hexaphosphate （InsP6 or phytic acid） on dimethylhydrazine （DMH）-induced colon tumor in rats and its effect on blood natural killer （NK） cell activity. METHODS： Healthy Wistar rats, 4 wk old, were divided into control group （fed with common food） and InsP6 group （fed with common food＋2% sodium inositol hexaphosphate in the drinking water）, 15 rats in each group. Both groups were injected with 1,2-dimethylhydrazine subcutaneously （20 mg/kg body weight） once a week for 20 wk. Rats were killed after 21 wk. The whole large intestine was isolated to determine the general condition of tumors and to test blood NK cell activity by lactate-dehydrogenase-release assay. RESULTS： Administration of InsP6 significantly increased blood NK cell activity in DMH-induced colorectal tumor in rats. InsP6 group had a smaller tumor size on average and a smaller number of tumors than the control group. Its mortality was also higher than that in control. However, the variables of body weight and tumor incidence were not significantly different between the two groups. CONCLUSION： InsP6 can increase blood NK cell activity in DMH-induced colon tumor in rats and inhibit tumor growth and metastasis in rats.
文摘We present a case of a 40-year-old woman with smallcell carcinoma (SCC) of the rectum. She had profuse bleeding in rectum for 5 d. By colonoscopy, polyps were determined in the rectum and biopsies were carried out.Histopathologically, the polyps were adenomatous. Because of the profuse bleeding in rectum, she underwent low anterior resection. After the diagnosis of SCC, she received intravenous chemotherapy with standard doses of siklofosfamid, adriamycin, and vepesid. Nevertheless,intracranial metastases were revealed and she died 6 mo after the operation.
基金Supported by a grant from the Ministry of Science and Technology of Oncogenes and Related Genes of State Key Laboratory (No. 90-08-01)
文摘Objective: Colon cancer metastasis is the key in fertility rate of colon cancer. Many recent results about metastasis research indicated that EMMPRIN played an important role in cancer metastasis. So, we designed this experiment to investigate whether EMMPRIN can enhance the metastatic ability of murine colon adenocarcinoma cell, CT26. Methods: EMMPRIN was over expressed in CT26 cells through transfecting pCMV-HA2-EMMPRIN into the CT26 cells. Invasion assay, wound migration assay and adhesion assay were utilized to analyze the metastasis of CT26 cells in vitro after EMMPRIN over expression. Results: After EMMPRIN over expression, invasion assay showed that invasive cells were 103.33 + 8.49 in EMMPRIN group and 48.67 + 5.3 in control group (P < 0.001). Migration assay showed that migrating cells were 40.67 + 2.49 in EMMPRIN group and 18.33 + 2.05 in control group (P < 0.001). CCK-8 absorbance value in adhesion assay were 3.33 + 0.17 in EMMPRIN group and 2.10 + 0.22 in control group (P < 0.001). Conclusion: Over expression of EMMPRIN could enhance the CT26 cell capacity of invasion and migration, and inhibit CT26 cell capacity of adhesion remarkably. The results suggest that EMMPRIN may be involved in cancer metastasis and play an important role in promotion of cancer metastasis.
文摘The small bowel metastases from head and neck regions are extremely rare. The diagnosis and treatment of such kind of small bowel metastases remain unclear. This paper reports on a 53-year-old case with small intestine perforation caused by metastasis from squamous cell carcinoma of scalp. After surgical treatment, the patient had a relatively better survival. This paper shares the clinical experience we have learned from managing this patient in hope that it will help other medical professionals in oncology to recognize the disease.
文摘MicroRNAs (miRNAs) constitute a class of small non-coding RNAs that function as posttranscriptional gene regulators. The dysregulation of miRNAs has been linked to a series of diseases, including various types of cancer. Since their discovery in the miRNAs of cancer patients, there has been a steady increase in the study of miRNAs as stable, noninvasive biomarkers. Although several challenges remain to be concerned, miRNAs could be useful, non-invasive biomarkers for colorectal cancer diagnostics and prognosis. In this review, we summarized the discovery of miRNAs and their potential as biomarkers. We discussed their possible structural, function and further emphasized the significance of miRNAs in colorectal cancer (CRC).
