Perineural invasion (PNI) is a pathological feature of many cancers associated with poor outcomes, metastases, and recurrence. In relation to ovarian cancer (OC), there no information about PNI’s role mechanisms. Our study found that patients PNI-positive symptoms had significantly shorter overall survival (OS) time than PNI-negative symptoms. Multivariate analyses demonstrated PNI represented ...

Natural killer (NK) cells exert potent antitumor activity. However, NK cells infiltrating solid tumors are severely impaired in their function. Remarkably, NK cells isolated from malignant pleural effusions kill very efficiently tumor cells upon exposure to interleukin-2, offering an important clue for the development of novel approaches for tumor immunotherapy.

Expression of chemokines within tumors can be used to recruit immature dendritic cells (DCs) for the initiation of antitumor T-cell responses. Here, we describe the chemokine receptor expression on murine bone marrow-derived immature DCs. On the basis of these receptor studies, we chose to express the chemokines CCL3 (Mip-1alpha) or CCL20 (Mip-3alpha) in tumors. We show that expression of these...

objective: adipose derived stem cells (ascs), as one of the important stromal cells in the tumor microenvironment, are determined with immunomodulatory effects. the principle aim of this study was to evaluate the immunosuppressive effects of ascs on natural killer (nk) cells. materials and methods: in this experimental study, we assessed the expressions of indolamine 2, 3-dioxygenase (ido1), id...

Tumors which are induced in chickens by avian sarcoma virus usually grow actively for 2 to 3 weeks and then regress. We have cultured tumor cells from each of the active and regression periods of neoplastic growth and compared them in terms of sensitivity to natural killer (NK) activity and to specific cell-mediated cytotoxicity. The results indicate that those cells which derive from regressin...

It has been reported that ectopically expressed interleukin-17 (IL-17) in tumor cells suppresses tumor progression through enhanced antitumor immunity in immune competent mice or promote tumor progression through an increase in inflammatory angiogenesis in immune-deficient mice. The role of endogenous IL-17 in tumor immunity remains undefined. Here we showed that tumor growth and lung metastasi...

Natural killer (NK) cells possess effector and immunoregulatory functions that are controlled by a myriad of receptor-ligand pairs, including human killer inhibitory receptor (KIR) and mouse Ly49-MHC class I interactions. We have recently shown that the NK cell inhibitory molecule Ly49A binds the non-classical MHC molecule H2-M3, thus regulating host innate immune responses to tumor initiation ...

Objective Inflammation plays an important role in endometriosis and adenomyosis. Progestin has been used for symptomatic treatment of adenomyosis, although its effect on inflammation has not been studied. We conducted a randomized controlled study to investigate the changes of immune cell expression, i.e. macrophages and natural killer cells, in the tissue obtained from women with adenomyosis w...

Invariant natural killer T cells have a distinct developmental pathway from conventional αβ T cells. Here we demonstrate that the transcriptional repressor NKAP is required for invariant natural killer T cell but not conventional T cell development. In CD4-cre NKAP conditional knockout mice, invariant natural killer T cell development is blocked at the double-positive stage. This cell-intrinsic...