Ascorbic acid (AA) has been reported as a treatment for cancer patients. Intravenous (iv) administration of high-dose AA increases plasma AA levels to pharmacologic concentrations and generates reactive oxygen species (ROS) to exert anti-tumor activity via enhancement of oxidative stress. However, AA is very unstable in aqueous solutions and it is impossible to preserve AA for a long period in ...

Two cases of very rare intramedullary spinal cord metastasis from colon carcinoma and renal carcinoma were treated primarily by microsurgical excision. A 44-year-old female presented with colon carcinoma metastasis manifesting as complete neurological deficit. She had undergone colon resection 2 years previously for colon carcinoma. The tumor was excised by microsurgery with megadose steroid th...

The antitumor activity of doxorubicin and three new deriva tives modified on the position 4' of the amino sugar was tested against five human colon tumors and two human rectal tumors (originating from different patients) and xenografted into nude mice. The drugs tested were: 4'-epidoxorubicin; 4'-deoxydoxorubicin; and 4'-O-methyldoxorubicin. Mice were treated i.v. on a weekly basis for 3 to 4 w...

The antitumor activity of doxorubicin and three new derivatives modified on the position 4' of the amino sugar was tested against five human colon tumors and two human rectal tumors (originating from different patients) and xenografted into nude mice. The drugs tested were: 4'-epidoxorubicin; 4'-deoxydoxorubicin; and 4'-O-methyldoxorubicin. Mice were treated i.v. on a weekly basis for 3 to 4 we...

The death receptor Fas and its physiological ligand (FasL) regulate apoptosis of cancerous cells, thereby functioning as a critical component of the host cancer immunosurveillance system. To evade Fas-mediated apoptosis, cancer cells often downregulate Fas to acquire an apoptosis-resistant phenotype, which is a hallmark of metastatic human colorectal cancer. Therefore, targeting Fas resistance ...

The B72.3 reactive antigen, TAG-72, has been purified and a series of second generation monoclonal antibodies (MAbs), designated CC (colon cancer), have been characterized by a range of in vitro immunological assays. Six CC MAbs (CC11, CC30, CC46, CC49, CC83, and CC92) were chosen for analyses of the in vivo binding to a human colon carcinoma xenograft. All 6 MAbs were previously shown to be di...

Accumulating evidence indicates the crucial contribution of chronic inflammation to various types of carcinogenesis, including colon carcinoma associated with ulcerative colitis and asbestosis-induced malignant mesothelioma. Ulcerative colitis-associated colon carcinogenesis can be recapitulated in mice by azoxymethane administration followed by repetitive dextran sulfate sodium ingestion. In t...

objective(s) sonodynamic therapy is a physical treatment which utilizes ultrasound waves with an appropriate sensitizer such as protoporphyrin ix (ppix). the activation of sensitizer depends on cavitation, and therefore, high intensity ultrasound is an important necessity. beside, high intensity ultrasound can induce side effects on the healthy tissues which have surrounded tumor. the particles...

Monoclonal antibodies (Mabs) against human ovarian mucinous and serous carcinoma were obtained by the Mab technique. Their reactivities against human tumors were tested by indirect immunofluorescence. One of the Mabs, named 4C7, derived from the spleen cells of mice immunized with mucinous carcinoma line OVA-1, reacted to ovarian mucinous carcinoma, endometrioid carcinoma, and mesonephroid carc...

Abstract Background Colorectal cancer (CRC) is related to gut microbiota dysbiosis, especially butyrate-producing bacteria reduction. Our previous study suggested administration of Clostridium butyricum (C. butyricum), a bacterium, exerts crucial effect against CRC. Methyltransferase-like 3 (METTL3) contributes tumorigenic epigenetic regulation. We aimed investigate the effects C. on METTL3 in ...