Background: Adenocarcinoma of the prostate is an invasive carcinoma, a neoplasm epithelial cells with secretory cell differentiation. Histomorphology glandular. The are sheets or single neoplasia, basal not seen in this carcinoma. Tumor-Infiltrating Lymphocytes (TILs) lymphocytes that migrate to tumor peritumoral cells. In malignancy, T lymphocyte infiltration can be found, indicating immune re...

To systematically identify genes related to invasion a three-dimensional multicellular matrix invasion assay was used to classify human tumor cell lines as stromal invasion positive or stromal invasion negative. Cells from two of the primary cell types of the stromal compartment [endothelial cells (HMVEC) and myofibroblasts (HDF)] were assayed for invasion into tumor cell clusters (breast carci...

Tumors are highly complex tissues composed of neoplastic cells and, in the case of carcinomas, stromal cell compartments containing a variety of mesenchymal cells, notably fibroblasts, myofibroblasts, endothelial cells, pericytes, and a variety of inflammatory cells associated with the immune system. Fibroblasts and myofibroblasts often represent the majority of the stromal cells within various...

Most common tumors of the spleen are hematologic and lymphoid malignancies. Non-lymphoid and non-hematologic tumors of the spleen are very rare, the most common of which are vascular tumors. This group of tumors in the spleen is composed of heterogeneous tumors such as hemangioma, angioendothelioma (AE), littoral cell angioma, and angiosarcoma. There are several histologic forms of AE such as e...

Gastrointestinal stromal tumors are the most common primary mesenchymal tumors of the gastrointestinal tract accounting for 0.1%-3.0% of all gastrointestinal malignancies. The stomach is the most common site (60%) followed by the small bowel (30%-35%) particularly jejunum and ileum, colorectum (5%) and rarely affect esophagus and appendix. Most gastrointestinal stromal tumors arise sporadically...

The interactions between cancer cells and the surrounding host stromal tissue play a critical role in tumor progression and metastasis, but the molecular nature of this relationship remains largely uncharacterized. Furthermore, although genetic changes of neoplastic cells in tumors contribute significantly to tumor progression, it is not known whether similar changes occur in the adjacent host ...

The interactions between tumor cells and surrounding stromal elements may promote the release of angiogenic factors. Although interleukin 8 (IL-8) is a major angiogenic factor in non-small cell lung cancer (NSCLC), the stromal contribution to IL-8 expression in primary NSCLC remains to be defined. To elucidate the role of stromal elements in NSCLC IL-8 production, normal pulmonary fibroblasts w...

BACKGROUND The tumor microenvironment plays an important role in the progression of cancer by mediating stromal-epithelial paracrine signaling, which can aberrantly modulate cellular proliferation and tumorigenesis. Exposure to environmental toxicants, such as inorganic arsenic (iAs), has also been implicated in the progression of prostate cancer. OBJECTIVE The role of iAs exposure in stromal...

The effects of human primary prostatic stromal cells on the migration and morphogenesis of human prostatic epithelial cells, derived from tumor or benign prostatic hyperplasia tissue, were studied using a three-dimensional coculture system. Epithelial cells from tumor or benign tissue migrated efficiently into collagen gels populated with stromal cells from benign tissue. Only epithelial cells ...

Although research into immunotherapy is growing, its use in the treatment of breast cancer remains limited. Thus, identification and evaluation prognostic biomarkers tissue microenvironments will reveal new immune-based therapeutic strategies for cancer. Using an silico bioinformatic approach, we investigated tumor microenvironmental genetic factors related to We calculated Immune score, Stroma...