IL3 Research Reagents

Interleukin-3 is a protein in humans that is encoded by IL3 gene. Granulocyte/macrophage colony-stimulating factors are cytokines that act in hematopoiesis by controlling the production, differentiation, and function of 2 related white cell populations of the blood, the granulocytes and the monocytes-macrophages.; FUNCTION

The following IL3 reagents supplied by CUSABIO are manufactured under a strict quality control system. Multiple applications have been validated and solid technical support is offered.

IL3 Antibodies

IL3 Antibodies for Homo sapiens (Human)

IL3 Proteins

IL3 Proteins for Macaca mulatta (Rhesus macaque)

IL3 Proteins for Bos taurus (Bovine)

IL3 Proteins for Mus musculus (Mouse)

IL3 Proteins for Rattus norvegicus (Rat)

IL3 Proteins for Homo sapiens (Human)

IL3 Proteins for Saguinus oedipus (Cotton-top tamarin)

IL3 Proteins for Hylobates lar (Common gibbon) (White-handed gibbon)

IL3 Proteins for Callithrix jacchus (White-tufted-ear marmoset)

IL3 Proteins for Pan troglodytes (Chimpanzee)

IL3 Proteins for Canis lupus familiaris (Dog) (Canis familiaris)

IL3 ELISA Kit

IL3 ELISA Kit for Homo sapiens (Human)

IL3 ELISA Kit for Mus musculus (Mouse)

IL3 ELISA Kit for Rattus norvegicus (Rat)

IL3 Background

Interleukin-3 (IL3) is a multipotent cytokine produced by activated T cells, monocytes/macrophages, and stroma cells that links immunity to the hemopoietic system and plays a remarkable role in leukemia as well as several immunopathologies [1]. Through actions on several cell types, IL3 contributes to allergic inflammation, autoimmune diseases, and oncogenesis [2][3]. The downstream effects of IL3 are mediated by binding to its receptor, a complex that contains an alpha subunit (IL3R or CD123) and a beta subunit (IL3Rβ or CSF2RB) [4]. Upon IL3 stimulation, a cascade of signaling mechanisms is elicited, including activation of the JAK2/STAT5 pathway and the PI3 kinase pathway [5]. Further, activation of the NF-kappa B pathway through TRAF6 recruitment to the beta subunit has been described [6]. These pathways not only leads to the cell-cycle progression and DNA synthesis but also suppression of apoptosis, thus facilitating cellular survival against apoptosis. IL3 is also involved in bone marrow hemopoiesis and dendritic cell maturation in anti-viral or antitumor reactivity. Since IL-3 is constitutively present in the myelomonocytic leukemia cell line WEHI-3B, it is thought that this genetic change is the key to the development of this leukemia type [7]. It has been shown that the combination of IL-3, GM-CSF, and stem cell factor enhances peripheral blood stem cells during high-dose chemotherapy [8][9]. Post-chemotherapy IL-3 application reduces chemotherapy delays and promotes regeneration of granulocytes and platelets. However, only IL-3 treatment in bone marrow failure disorders such as myelodysplastic syndrome (MDS) and aplastic anemia (AA) was disappointing [10].

[1] Hercus T.R., Dhagat U., et al. Signalling by the bc family of cytokines [J]. Cytokine Growth Factor Rev. 2013, 24, 189-201.
[2] Korpelainen E.I., Gamble J.R., et al. The receptor for interleukin 3 is selectively induced in human endothelial cells by tumor necrosis factor alpha and potentiates interleukin 8 secretion and neutrophiltransmigration [J]. Proc. Natl. Acad. Sci. USA 1993, 90, 11137-11141.
[3] Broughton S.E., Dhagat U., et al. The GM-CSF/IL-3/IL-5 cytokine receptor family: from ligand recognition to initiation of signaling [J]. Immunol. Rev. 2012, 250, 277-302.
[4] Takai S, Yamada K, et al. Mapping of the human gene encoding the mutual signal-transducing subunit (beta-chain) of granulocyte-macrophage colonystimulating factor (GM-CSF), interleukin-3 (IL-3), and interleukin-5 (IL-5) receptor complexes to chromosome 22q13.1 [J]. Hum Genet 1994;93(2):198-200.
[5] Hercus TR et al. Role of the β common (βc) family of cytokines in health and disease [J]. Cold Spring Harb Perspect Biol 2018;10(6).
[6] Meads MB, Li Z-W, et al. A novel TNF receptor-associated factor 6 binding domain mediates NF-kappa B signaling by the common cytokine receptor beta subunit [J]. J Immunol 2010;185(3):1606-1615.
[7] Aiguo, Wu, Guangren, Duan. PMID Observer Design of Descriptor Linear Systems [J]. 2007 Chinese Control Conference. 2016, IEEE: 161-165.
[8] Serrano F, Varas F, et al. Accelerated and longterm hematopoietic engraftment in mice transplanted with ex-vivo expanded bone marrow [J]. Bone Marrow Transplant. 1996, 14 (6): 855-62.
[9] Peters SO, Kittler EL, et al. Ex-vivo expansion of murine marrow cells with IL-3, Il-6, Il-11 and SCF leads to impaired engraftment in irradiated host [J]. Blood. 1996, 87 (1): 30-7.
[10] Manzoor H Mangi, Adrian C Newland. Interleukin-3 in hematology and onkology: Current state of knowledge and future directions [J]. Cytokines, Cellular and Molecular Therapy. 5: 87-95.

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