8 rezultatus
NKp46 (natural cytotoxic receptor 1/CD335) is expressed on natural killer cells and Th2-type innate lymphocytes. However, NKp46 expression in human mast cells has not yet been reported. Here, we explored the expression of, and possible role played by, NKp46 in such cells. NKp46 protein was expressed
Human mast cells have been shown to release histamine in response to the neuropeptide alpha-melanocyte-stimulating hormone (alpha-MSH), but it is unknown whether these cells express proopiomelanocortin (POMC) or POMC-derived peptides. We therefore examined highly purified human skin mast cells and a
BACKGROUND
Systemic mastocytosis is characterized by mast cell infiltration of bone marrow and tissues in the absence of identified circulating bone marrow-derived progenitors. A 58-year-old man was first seen with aggressive systemic mastocytosis manifested by urticaria pigmentosa,
The term "mastocytosis" is used to describe a heterogeneous group of disorders characterized by abnormal growth and accumulation of mast cells (MCs). Cutaneous and systemic variants exist. Systemic mastocytosis may show an indolent or malignant clinical course. In malignant mastocytosis (MM), the
Human mast cell precursors arise in the bone marrow and circulate to different tissue microenvironments, where they develop distinct phenotypes that may be characterized by differential expression of the serine protease, chymase. The growth and development of mast cells is stimulated by mast cell
Systemic mast cell disease/mastocytosis (SMCD) is best defined as a multitopic proliferation of cytologically and/or functionally abnormal tissue mast cells (TMC). SMCD preferentially involves the bone marrow, skin, spleen, liver, and lymph nodes. The histopathological diagnosis of SMCD may be very
Varieties of the clinical features of mastocytoses, also called mastocytosis syndrome, are presented. The disease is characterized by excessive accumulation of mast cells, their proliferation and action in the skin and other organs, even in the central nervous system. The mastocytosis syndrome was
Mastocytosis is a heterogeneous group of disorders characterized by abnormal growth and accumulation of mast cells in skin, bone marrow, bone, gastrointestinal tract, liver, spleen and lymph nodes. Today, regarding its biological features, mastocytosis (with or without myeloid accompanying