Active Macrophage Inflammatory Protein 1 Beta (MIP1b)

CCL4; ACT2; G-26; LAG1; MIP1-B; SCYA4; Chemokine C-C-Motif Ligand 4; Small Inducible Cytokine A4; Homologous To Mouse Mip-1b

ACTIVITY TEST

Macrophage inflammatory protein-1β (MIP-1β), also known as CCL4 is a CC chemokine with specificity for CCR5 receptors. It is a chemoattractant for natural killer cells, monocytes and a variety of other immune cells. MIP-1β is a kind of chemotactic cytokine. Thus, chemotaxis assay used 24-well microchemotaxis system was undertaken to detect the chemotactic effect of MIP-1β on the human T-lymphocyte leukemia cell line Jurkat. Briefly, Jurkat cells were seeded into the upper chambers (100uL cell suspension, 5×105 cells/mL in RPMI 1640 with FBS free) and recombinant human MIP-1β (0.0001ng/mL, 0.001ng/mL, 0.1ng/mL, 1ng/mL, 10ng/mL, 100ng/mL diluted separately in serum free RPMI 1640) was added in lower chamber with a polycarbonate filter (8um pore size) used to separate the two compartments. After incubation at 37℃ with 5% CO2 for 2h, the <br/>filter was removed, then cells in low chamber were observed by inverted microscope at low magnification (×100) and the number of migrated cells were counted at high magnification (×200) randomly (five fields for each filter). Result shows recombinant human MIP-1β is able to induce migration of Jurkat cells. The migrated Jurkat cells in low chamber at low magnification (×100) were shown in Figure 1. Five fields of each chamber were randomly chosen, and the migrated cells were counted at high magnification (×200). Statistical results were shown in Figure 2. The optimum chemotaxis of MIP-1β occurs at 0.1~10pg/mL.<br/>(A)Jurkat cells were seeded into the upper chambers and serum free RPMI 1640 with 0.01ng/mL MIP-1β was added in lower chamber, then cells in lower chamber were observed at low magnification (×100) after incubation for 2h; <br/>(B)Jurkat cells were seeded into the upper chambers and serum free RPMI 1640 without MIP-1β was added in lower chamber, then cells in lower chamber were observed at low magnification (×100) after incubation for 2h.<br/>Figure. The chemotactic effect of recombinant human MIP-1β on Jurkat cells.

Figure. The chemotactic effect of recombinant human MIP1-βon Jurkat cells.

USAGE

Reconstitute in 20mM Tris, 150mM NaCl (pH8.0) to a concentration of 0.1-1.0 mg/mL. Do not vortex.

STORAGE

Avoid repeated freeze/thaw cycles. Store at 2-8°C for one month. Aliquot and store at -80°C for 12 months.

STABILITY

The thermal stability is described by the loss rate. The loss rate was determined by accelerated thermal degradation test, that is, incubate the protein at 37°C for 48h, and no obvious degradation and precipitation were observed. The loss rate is less than 5% within the expiration date under appropriate storage condition.

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INCREMENT SERVICES

Magazine Citations
Inhalation Toxicology Age influence on hypersensitivity pneumonitis induced in mice by exposure to Pantoea agglomerans Pubmed: 24044680
PLoS One. Megakaryocytic leukemia 1 (MKL1) regulates hypoxia induced pulmonary hypertension in rats. Pubmed: 24647044
PLOS ONE Megakaryocytic Leukemia 1 (MKL1) Regulates Hypoxia Induced Pulmonary Hypertension in Rats Pubmed:Pmc3960100
Cell Physiol Biochem MicroRNA-155 Promotes Atherosclerosis Inflammation via Targeting SOCS1 PubMed: 26159489
Am J Alzheimers Dis Other Demen. Tong Luo Jiu Nao, a Chinese Medicine Formula, Reduces Inflammatory Stress in a Mouse Model of Alzheimer's Disease Pubmed:26993489
Pharmacological Reports The Association between Inflammatory Markers (iNOS, HO-1, IL-33, MIP-1β) and Depression with and without Posttraumatic Stress Disorder 10.1016:j.pharep.2018.06.001
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