human Pleiotrophin

Proteins

The product is shipped as a lyophilized powder at room temperature. Upon receipt, store the product at -20°C. Protect from moisture.

15.4 kDa

Human Pleiotrophin, Recombinant,  E. coli

Centrifuge the vial (10, 000 × g for 5 minutes) before adding solvent to spin down all the powder to the bottom of the vial. The lyophilized product may be difficult to visualize. Add solvent directly to the centrifuged vial. Gently tap, tilt, and roll the vial to aid dissolution. Avoid vigorous vortexing; light vortexing for up to 3 seconds is acceptable if needed. For long-term storage in solution, we recommend preparing a stock solution by dissolving the product in sterile water at a concentration of at least 0.1 mg/mL. Divide the stock solution into small aliquots and store at -20°C. Before use, thaw the relevant vial(s) and dilute to the desired working concentration in your working buffer. It is recommended to prepare fresh solutions in working buffers just before use. For long-term storage of diluted solutions, we recommend adding 0.1% BSA. Repeated freeze-thaw cycles may result in loss of activity.

7, 4

EC50 = ~0.65 - 6.5 pM

Centrifuge the vial before adding solvent (10, 000 x g for 5 minutes) to spin down all the powder to the bottom of the vial. The lyophilized product may be difficult to visualize. Add solvent directly to the centrifuged vial. Tap the vial to aid in dissolving the lyophilized product. Tilt and gently roll the liquid over the walls of the vial. Avoid vigorous vortexing. Light vortexing for up to 3 seconds is acceptable if needed. For long-term storage in solution, we recommend preparing a stock solution by dissolving the product in sterile water at a concentration of at least 0.1 mg/mL. Divide the stock solution into small aliquots and store at -20°C. Before use, thaw the relevant vial(s) and dilute to the desired working concentration in your working buffer. It is recommended to prepare fresh solutions in working buffers just before use. For long-term storage of diluted solutions, we recommend adding 0.1% BSA. Repeat freeze-thawing may result in loss of activity.

yes

Pleiotrophin (PTN), is a heparin-binding neurotrophic factor. Cells that express either PTN or PTN mRNA include osteoblasts, fetal chondrocytes, 1 astrocytes, oligodendroglia, neurons, 2 Schwann cells, 3 keratinocytes of the stratum basale, 3 and selected tumor cell lines.4, 5 The expression of PTN increases during the process of brain embryogenesis and reaches maximum levels at time of birth.The role of PTN in neurogenesis and neural plasticity has been revealed by various studies. Embryonic cortical neurons adhere to and extend neurites on PTN coated substratuM6 PTN also induces, in vitro, migration of osteoblasts. 7 PTN coated membrane enhances neuronal migration by haptotaxis.8 PTN bound to agarose beads induces clustering of acetylcholine receptors on embryonic myoblasts.9PTN is expressed in the CA1 region of rat hippocampus in an activity-dependent manner, and is suggested to be involved in the regulation of synaptic plasticity in the hippocampus.10Transfection with PTN cDNA, transforms murine 3T3 fibroblasts into cells that form extensively metastasizing tumors in nude mice.11 PTN is highly expressed in choriocarcinoma, melanoma and, prostate carcinoma. Serum PTN increase in patients with pancreatic and colon carcinomas.12After focal forebrain ischemia, PTN is expressed in astrocytes, OX-42 positive macrophages, and endothelial cells in areas of developing neovascularization.13 PTN is also deposited in senile plaques in Alzheimer's disease and Down's syndrome.14