Polyclonal Anti-IL-4

Price

200.00 USD

Size

100ug/vial

Reactivities

Hum

Format

Each vial contains 5mg BSA, 0.9mg NaCl, 0.2mg Na2HPO4, 0.05mg Thimerosal, 0.05mg NaN3.

References

1. Prokopchuk, O.; Liu, Y.; Henne-Bruns, D.; Kornmann, M. Interleukin-4 enhances proliferation of human pancreatic cancer cells: evidence for autocrine and paracrine actions. Br J Cancer.2005 Mar 14;92(5):921-8.\n2. Arai, N.; Nomura, D.; Villaret, D.; DeWaal Malefijt, R.; Seiki, M.; Yoshida, M.; Minoshima, S.; Fukuyama, R.; Maekawa, M.; Kudoh, J.; Shimizu, N.; Yokota, K.; Abe, E.; Yokota, T.; Takebe, Y.; Arai, K. Complete nucleotide sequence of the chromosomal gene for human IL-4 and its expression. J. Immun. 142: 274-282, 1989.\n

Storage Temp

\"At -20 degree C for one year. After reconstitution, at 4 degree C for one month. It can also be aliquotted and stored frozen at -20 degree C for a longer time.\nAvoid repeated freezing and thawing. \n\"\n

Scientific Background

Interleukin-4 (IL-4), also knowns as a B-cell stimulatory factor1 (BSF1), is an immunomodulatory cytokine, which can inhibit the growth of tumour cells.1 The human cDNA contains a single open reading frame encoding a protein of 153 amino acids, including a putative signal peptide. IL-4 may act as an autocrine growth factor in pancreatic cancer cells and also give rise to the possibility that cancer-derived IL-4 may suppress cancer-directed immunosurveillance in vivo in addition to its growth-promoting effects, thereby facilitating pancreatic tumor growth and metastasis.1 The mouse and human genes and their protein products show structural and functional similarities. The human IL-4 gene, which occurs as a single copy in the haploid genome, is mapped on chromosome 5.2 The standard product used in this kit is recombinant human IL-4, consisting of 130 amino acids with the molecular mass of 14KDa.