HMC-1 cell line人肥大细胞系 BioVector NTCC质粒载体菌种细胞基因保藏中心

HMC-1 cell line人肥大细胞系

HMC-1 cell line was established from a patient with mast cell leukemia. HMC-1 cells are widely used in studies of human mast cell function because they exhibit many key characteristics of tissue mast cells, such as expression of histamine, tryptase, heparin and similar cell surface antigen-profile (1,2). Receptor tyrosine kinase KIT is expressed on mast cells and plays an important role in the proliferation, function and survival of mast cells. Activating mutations in KIT have been linked to dysregulated growth of mast cells and are associated with mast cell tumors and systemic mastocytosis. Two activating point mutations in KIT have been reported in the HMC-1 cell line (3). Both mutations convert the receptor to a constitutively tyrosine phosphorylated and active state, leading to growth factor-independent proliferation.

HMC-1.1 (HMC-1(560)) and HMC-1.2 (HMC-1(560,816)) are two variant sublines of the HMC-1 cell line (2). HMC-1.1 possess the G560V mutation, but not the D816V mutation. HMC-1.2 possess both the G560V and D816V mutations and exhibits a higher proliferative rate than HMC-1.1. It has been suggested that the higher proliferative potential of HMC-1.2 may be attributed to the D816V mutation.
Cell Line Description
Cancer Cells
Application
Research Category
Inflammation & Immunology

Reference:
1. Nilsson, G, et al. (1994) Phenotypic Characterization of the Human Mast-Cell Line HMC-1. Scand. J. Immunol 39: 489-498.
2. Sundstrom, M, et al. (2003) Functional and phenotypic studies of two variants of a human mast cell line with a distinct set of mutations in the c-kit proto-oncogene. Immunology 108: 89-97.
3. Furitsu, T, et al. (1993) Identification of mutations in the coding sequence of the proto-oncogene c-kit in a human mast cell leukemia cell line causing ligand-independent activation of c-kit product. J. Clin. Invest. 92(4): 1736-4.

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