recombinant human leukemiainhibitory factor (lif)
productdescription:
leukemiainhibitory factor (lif) is a polyfunctional cytokine withmultiple effects on a broad range of cell type, including monocyte,megakaryocytes, neuronal cells, embryonal stem cells, hepatocutes,adipocytes and osteoblasts. lif stimulates thedifferentiation of the macrophage cell line m1, and theproliferation of hematopoietic stem cells. in vivo, it hasprofound effects on hematopoiesis, particularly in combination withother cytokines such as il-3, causing increased platelet formation.lif allows embryonic stem cells to remain in anundifferentiated state and can maintain their proliferation inculture. lif stimulates synthesis of acute phase proteins byliver cells, increases bone resorption, stimulates differentiationof cholinergic nerves and loss of body fat. the mature proteincontains 180 amino acid residues, several potential glycosylationsites and three disulfide bonds.
source:
human lifwas expressed in yeast as a glycosylated protein with molecularweight 58.5 kda.
purity:
greater than 98%by analytical hplc and sds-page.
formulation:
lyophilized from 0.2 µm filtered pbs
stability/storage:
store desiccatedat -20o c, stable for one year.
avoid freezingand thawing.
activity:
the biologicalactivity of recombinant human lif was measured by theability to induce differentiation ofmurine m1 myeloid leukemic cells. the minimal detectableconcentration of human lif in this assay is <0.05 ng/ml. thespecific activity is > 1 x 108 units/mg.
references:
1. david p gearing et al. theembo 1987, 16(13), 3995-4002.
2 .nicholas mgough et al proc. natl. acad. sci. usa 1988, 85,2623-2627.

---

山东东兴汇智生物科技有限公司
郭建营
13153696825
高新区高新二路生物医药科技产业园孵化器103室