In order to determine whether human granulocyte-macrophage colony-stimulating factor (GM-CSF) can enhance phagocytosis. neutrophils were combined with Staphylococcus aureus (S aureus). and both the number of bacteria per neutrophil and the percent of neutrophils phagocytizing were assessed in the absence and presence of GM-CSF. Exposure to GM-CSF did not enable neutrophils to ingest unopsonized...

In order to determine whether human granulocyte-macrophage colony-stimulating factor (GM-CSF) can enhance phagocytosis, neutrophils were combined with Staphylococcus aureus (S aureus), and both the number of bacteria per neutrophil and the percent of neutrophils phagocytizing were assessed in the absence and presence of GM-CSF. Exposure to GM-CSF did not enable neutrophils to ingest unopsonized...

  SUMMARY Growth factors or colony stimulating factors (CSFs)recently became the subject of headlines around the world. Many published articles in the last few years indicate that the CSFs can correct anemia and pancytopenia of the great majority of patients. Recombinant CSFs are available to the many scientific and therapeutic centers in the U.S.A, Europe and Japan these days. Erythrop oieti...

hematopoietic stem/progenitor cells (hspcs) which give rise to different blood cell types are present within the bone marrow microenvironment, especially in flat bones such as skull, vertebrae, pelvis and chest. interacting factors such as stromal derived factor-1/cxcr4, very late antigen-4/vascular cell adhesion molecule-1, lymphocyte function-associated antigen-1/ intercellular adhesion molec...

Tumor-promoting phorbol esters stimulated mouse bone marrow cells to form myeloid colonies in agar cultures without added colony-stimulating factors. The colony-stimulating ability of various phorbol esters correlated well with their ability to promote skin tumors in vivo. These results suggest that phorbol esters mimic the action of specific colony-stimulating factors that regulate growth.

The aim of this study was to provide new data to the knowledge of mechanisms by which recombinant human granulocyte colony-stimulating factor (rhG-CSF), recombinant human granulocyte-macrophage colony-stimulating factor (rhGM-CSF) and recombinant murine granulocyte-macrophage colony-stimulating factor (rmGM-CSF) enhance the numbers of colonies growing from hematopoietic progenitor cells for gra...

Pulmonary alveolar proteinosis (PAP) is a syndrome characterised by accumulation of proteinaceous, periodic acidSchiff positive material within airspaces due to disruption of surfactant homeostasis [1]. In 95% of cases, PAP is associated with increased serum levels of auto-antibodies neutralising granulocyte-macrophage colony-stimulating factor and, therefore, this form is referred to as ‘‘auto...

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