phorbol ester/dental caries

B cells obtained by irrigation of the peritoneal cavity differ from splenic B cells in signaling requirements for the initiation of DNA synthesis. Splenic B cells are stimulated to enter S phase by phorbol esters in conjunction with a second signal provided by calcium ionophore; however, splenic B

Expression of Kaposi's sarcoma-associated herpesvirus (KSHV) lytic genes is thought to be essential for the establishment and progression of KSHV-induced diseases. The inefficiency of lytic reactivation in various in vitro systems hampers the study of lytic genes in the context of whole virus. We

DNA sequences corresponding to a novel herpesvirus (human herpesvirus 8 [HHV8]) are associated with Kaposi's sarcoma (KS), Castleman's disease, and body cavity-based lymphomas (BCBL). Studies of a BCBL-derived cell line suggest a direct correlation between seropositivity against antigens

Primary effusion lymphoma (PEL) is a new lymphoma entity occurring predominantly, but not exclusively in HIV+ patients with acquired immunodeficiency syndrome (AIDS). PEL grows exclusively in body cavities as serous lymphomatous effusion without evidence of mass disease or dissemination. The cells

The present study was undertaken to determine the role of the metalloproteinase MMP-9 in the invasive phenotype of squamous-cell carcinoma of the oral cavity and the regulation of its expression. Zymographic analysis of conditioned medium from 2 highly invasive squamous-cell-carcinoma cell lines

Resident macrophages which were harvested from the mouse peritoneal cavity showed the attachment activity to opsonized erythrocytes (OE) without the treatment of chondroitin sulfates (CSA) or phorbol esters. Phorbol ester (phorbol 12-myristate 13-acetate or phorbol 12,13-diacetate) rapidly activated

The activation requirements of murine peritoneal B cells differ from those of conventional (splenic) B cells; in particular, peritoneal B cells are stimulated to enter S phase by phorbol ester, acting alone. This pathway was studied to assess the susceptibility of peritoneal B cells to regulation by

OBJECTIVE It remains to be fully clarified how adhesion of mast cells is regulated in vivo. We previously reported that PGE2-receptor EP4 stimulated the adhesion of mouse mastocytoma P-815 cells to plate-bound fibronectin. Our purpose in this study is to evaluate the adhesion using a system, which

There is an increased risk of developing neoplastic disease at sites of chronic inflammation. We have used a model of rat pleural cavity inflammation induced with carrageenan to obtain inflammatory cells comprising predominantly phagocytes (macrophages, monocytes and neutrophils) to examine their

The BC-1 cell line, derived from a body cavity-based, B-cell lymphoma, is dually infected with Epstein-Barr virus (EBV) and Kaposi's sarcoma-associated herpesvirus (KSHV). In these studies, the relationships between these two gammaherpesviruses and BC-1 cells were characterized and compared.

The polysaccharide fucoidin, a homopolymer of sulfated L-fucose, is known, by interfering with the function of L-selectin, to inhibit leukocyte rolling, which is an early and essential step in the process of leukocyte extravasation into inflamed sites. We tested the inhibitory effect of fucoidin on

As assessed by immunoprecipitation analyses, expression of the epitope recognized by the rat mAb B23.1 is approximately sevenfold greater on the surface of mouse IL-3-dependent bone marrow culture-derived mast cells (BMMC) than on serosal mast cells (SMC) obtained directly from the peritoneal

Human Herpesvirus 8 (HHV-8) is clearly associated with Kaposi's sarcoma (KS), body cavity-based lymphomas (BCBL), and certain forms of multifocal Castleman's disease (MCD). It appears to be the sexually transmissible agent involved in the development of AIDS-associated KS. HHV-8 genomes are

One of the key features associated with programmed cell death in many tissues is the phagocytosis of apoptotic bodies by macrophages. Removal of apoptotic cells occurs before their lysis, indicating that these cells, during the development of apoptosis, express specific surface changes recognized by

Human herpesvirus 8 (HHV-8) is likely to be involved in the pathogenesis of Kaposi's sarcoma (KS) and body cavity-based lymphomas (BCBLs). The HHV-8 genome is primarily in a latent state in BCBL-derived cell lines like BCBL-1, but lytic replication can be induced by phorbol esters (R. Renne, W.