Natural killer cell-mediated cytotoxicity (NKCC) is one of sev eral possible immune defense mechanisms that may protect against the development of solid-tumor métastases. We have demonstrated that in vitro NKCC can be significantly impaired by both surgical stress and progressive tumor burden. Female C57BL/6 mice received a hindfoot amputation under anesthesia with Nembutal i.p. Twenty-four hr...

Quantification of tumor-associated mRNA extracted from blood cells/tissues containing tumor cells is used for evaluation of treatment efficacy or residual tumor cell burden in tumors including leukemia. However, this method using tumor cell-containing blood/tissue is difficult to evaluate the whole tumor cell burden in the body. In order to establish an efficient method to evaluate the whole tu...

Abstract The evolution of DNA methylome and methylation intra-tumor heterogeneity (ITH) during early carcinogenesis lung adenocarcinoma has not been systematically studied. We perform reduced representation bisulfite sequencing invasive its precursors, atypical adenomatous hyperplasia, in situ minimally adenocarcinoma. observe gradual increase aberrations significantly higher level ITH later-st...

α-N-acetylgalactosaminidase (nagalase) accumulates in the serum of cancer patients and its activity correlates with tumor burden, aggressiveness and clinical disease progression. The administration of GC protein-derived macrophage-activating factor (GcMAF) to cancer patients with elevated levels of nagalase has been associated with a decrease of serum nagalase activity and with significant clin...

It is a commonly held belief that infiltration of immune cells into tumor tissues and direct physical contact between tumor cells and infiltrated immune cells is associated with physical destructions of the tumor cells, reduction of the tumor burden, and improved clinical prognosis. An increasing number of studies, however, have suggested that aberrant infiltration of immune cells into tumor or...

BACKGROUND This paper tries to evaluate prognostic value of various pre and post-operative colorectal cancer markers. MATERIALS AND METHODS In the study conducted in our clinic over a period of five years we tried to emphasize the biological factors of prognostic value in colorectal cancer, and to demonstrate the important role of these factors in predicting survival, but also of early relaps...

A rapid method for the measurement of serum and/or plasma, lipid-associated sialic acid levels has been developed. This test has been applied to 850 human sera of which 670 came from patients with nine categories of malignant disease, 80 from persons with benign disorders, and 100 from normal individuals. Lipid-associated sialic acid concentrations were found to be significantly increased (p le...

The appearance of metastases is an ominous sign in the natural history of any malignant tumor. Their presence implies a high tumor burden and greatly decreases the probability of a cure. Metastasis development requires the evolution of tumor cells that can survive in an environment that is normally not supportive to their growth and such cells must leave the tumor to establish tumor niches else...

UNLABELLED Cholangiocacinoma (CC) is a cancer disease with rising incidence. Notch signaling has been shown to be deregulated in many cancers. However, the role of this signaling pathway in the carcinogenesis of CC is still not fully explored. In this study, we investigated the effects of Notch inhibition by γ-secretase inhibitor IX (GSI IX) in cultured human CC cell lines and we established a ...

Glioblastoma multiforme is immunogenic and several glioblastoma multiforme-related antigens have now been identified. In addition, the immunologic characteristics of the tumor microenvironment that may affect tumor growth are becoming increasingly understood. The type of immune-based approach selected to treat glioblastoma multiforme will depend on the tumor burden. For minimal disease states, ...