Simulations of centriole of polarized centrosome as a monopole antenna in immune and viral synapses.

The immune synapse (IS) is a temporary interface between an antigen-presenting cell and an effector lymphocyte. Viral synapse is a molecularly organized cellular junction that is structurally similar to the IS. Primary cilium is considered as a functional homologue of the IS due to the morphological and functional similarities in architecture between both micotubule structures.

The changes of tumour vascular endothelial growth factor expression after neoadjuvant chemoradiation in patients with rectal adenocarcinoma.

Aim Of The Study: The aim was to examine the effects of neoadjuvant chemoradiotherapy on VEGF expression in patients with locally advanced rectal cancer.

Materials And Methods: A total of 53 patients with locally advanced rectal cancer were retrospectively studied. Neoadjuvant treatment comprised external beam radiation (50.

Transient and Non-Transient Intussusceptions of the Large Bowel in Adults: Two Case Reports.

Background: Intussusception of the large bowel in adults is a very rare pathological condition. However, it has its clinical importance because intussusception is very often associated with an intraluminal lesion.

Case Report: We report two cases of the large bowel intussusception, ileocolic and colorectal.

Dissociated invasively growing cancer cells with NF-kappaB/p65 positivity after radiotherapy: a new marker for worse clinical outcome in rectal cancer? Preliminary data.

Objectives Nuclear factor-kappaB (NF-kappaB), especially p65 subunit, seems to be associated with origin and progression of cancer. The aim of the study was to determine expression of NF-kappaB/p65 in rectal cancer patients before and after radiotherapy as well as to assess the relationship between NF-kappaB/p65 expression, other tumor characteristics, and disease progression. Further aim was to evaluate whether expression of NF-kappaB/p65 in tumor tissue may serve as a predictive marker of patient outcome.

Intraluminal high dose rate brachytherapy of tumorous esophageal stenoses.

Background/aims: The prognosis of inoperable carcinomas of esophagus is poor, and therapeutic efforts are generally limited to palliation. The aim of this study was to retrospectively evaluate the effectiveness of intraluminal high dose rate brachytherapy in the palliative treatment of tumorous esophageal stenoses.

Methodology: Between February 1997 and July 2002 intraluminal brachytherapy was performed in 19 patients with inoperable esophageal carcinoma (squamous cell carcinoma in 14 cases and adenocarcinoma in 5 cases).

Survival of patients with colorectal cancer liver metastases treated by regional chemotherapy.

Background/aims: Liver is the most common site of metastatic disease in colorectal cancer. Superior response rate was demonstrated in trials comparing hepatic arterial administration of cytotoxic agents with systemic chemotherapy.

Methodology: Records of 109 consecutive patients with colorectal carcinoma metastatic to the liver treated by regional chemotherapy, who underwent implantation of a port system into hepatic artery or portal vein tributaries between 1991 and 1999, were reviewed and survival was evaluated using the log-rank test and multivariate analysis (Cox's proportional hazard regression).

Regional chemotherapy in patients with breast carcinoma liver metastases.

Background/aims: Although liver is a common site of metastases in breast cancer, isolated liver metastases in patients with disseminated breast cancer are rare. The role of liver-directed therapies in these patients is based on data derived from retrospective analysis of case series.

Methodology: We have reviewed the records of 8 patients with liver metastases and a history of breast cancer treated at our institution over a period of 11 years with regional chemotherapy administered through surgically implanted port systems.

Blood supply of metastatic liver tumors: an experimental study.

Based on experiments with 18 female mice with induced secondary liver tumors, the entire liver metastasis blood circulation including characterization of efferent drainage system is described. The center of liver metastases is supplied from capillaries originated from branches of the hepatic artery. From the capillaries, blood is led to the superficial venous network of the metastases and further to intrahepatic veins.

Hepatic arterial infusion chemotherapy in sarcoma liver metastases: a report of 6 cases.

Aims And Background: Liver metastases in patients with sarcoma are rare and associated with a poor prognosis. The experience with liver-directed therapies, eg hepatic arterial infusion, in these patients is limited.

Methods: Six patients with sarcoma metastatic to the liver (4 patients with gastrointestinal stromal tumors and 2 patients with leiomyosarcoma) were treated by hepatic arterial infusion in our center over a 12-year period.

Hepatic arterial infusion chemotherapy in gastric cancer: a report of four cases and analysis of the literature.

Aims And Background: Gastric cancer is associated with high mortality. Although the liver is a common site of metastases in this tumor, the experience with liver-directed therapies is limited.

Methods: We report a single-center experience involving four patients with liver metastases from gastric cancer treated by hepatic arterial infusion (HAI).

Successful treatment of infected vascular prosthetic grafts in the groin using conservative therapy with povidone-iodine solution.

Four cases of infected vascular prosthetic graft in the groin successfully treated with povidone-iodine solution using a conservative approach are described here. In all patients the same technique was used. After complete debridement, the prosthetic graft in the groin was completely exposed.

Inhibition of NF-kappa B augments sensitivity to 5-fluorouracil/folinic acid in colon cancer.

Background: 5-fluorouracil (5-FU), the most common antimetabolite used for the treatment of colorectal cancer, exerts its cytotoxic effects through the induction of apoptosis. Folinic acid potentiates the effect of 5-FU. Drug activity is currently limited as a result of inducible chemoresistance.