MIP-3 alpha/CCL20 Protein, Human (CHO)

MIP-3 alpha/CCL20 Protein, Human (CHO) is a CC chemokine that attracts lymphocytes and mild neutrophils by binding to and acting on the chemokine receptor CCR6. It induces intracellular calcium mobilization and mediates cancer, various autoimmune diseases, and antimicrobial effects. MIP-3 alpha/CCL20 Protein, Human (CHO) is a recombinant human CCL20 (A27-M96) expressed by CHO cells^[1].

CCL20, also known as macrophage inflammatory protein 3 alpha (MIP-3-alpha) and liver-activated regulatory chemokine (LARC), is a small cytokine belonging to the CC chemokine family and is located on chromosome 2 in the human genome. It is expressed at lower levels in the thymus, testis, prostate and intestine. CCL20 binds to and acts as a chemokine receptor CCR6 and synergistically inhibits the function of CD8 T cells with CCR6. CCL20 has antimicrobial activity and has been implicated in autoimmune diseases such as inflammatory bowel disease, rheumatoid arthritis, and psoriasis, as well as oncological diseases. It can induce Tregs to invade tumor tissue, recruit dendritic cells to promote immunosuppression, and induce endothelial cell proliferation and neointima formation^[1][2].

CCL20 (human, 0-50 μg/mL) inhibits B. abortus 2308 with the LD₅₀ (the dose that achieves 50% reduction of CFU) > 50 μg/mL, effects on B. abortus RB51 in a dose-dependent manner with a LD₅₀ of 8.7 μg/mL and demonstrates anti-E. coli activity with a LD₅₀ of 1.5 μg/mL^[3].
CCL20 is up-regulated in human colon adenocarcinoma cell lines stimulated by pro-inflammatory cytokines IL-1α and TNF-α and can function as an NF-κB target gene^[4].

The ED₅₀ is <200 ng/mL as measured by CHO-K1/Gα15/hCCR6 cells (human Gα15 and human CCR6 stably expressed in CHO-K1 cells).

Human

CHO

Tag Free

P78556 (A27-M96)

6364  [NCBI]

ASNFDCCLGYTDRILHPKFIVGFTRQLANEGCDINAIIFHTKKKLSVCANPKQTWVKYIVRLLSKKVKNM

Approximately 8 kDa

Greater than 95% as determined by reducing SDS-PAGE.

Lyophilized powder.

Lyophilized after extensive dialysis against PBS.

<0.2 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O. For long term storage it is recommended to add a carrier protein (0.1% BSA, 5% HSA, 10% FBS or 5% Trehalose).

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.

• [1]. Louis Boafo Kwantwi, et al. Multifaceted roles of CCL20 (C-C motif chemokine ligand 20): mechanisms and communication networks in breast cancer progression. Bioengineered. 2021 Dec;12(1):6923-6934.  [Content Brief]

  [2]. M Baba, et al. Identification of CCR6, the specific receptor for a novel lymphocyte-directed CC chemokine LARC. J Biol Chem. 1997 Jun 6;272(23):14893-8.  [Content Brief]

  [3]. M Soledad Hielpos, et al. CCL20 and Beta-Defensin 2 Production by Human Lung Epithelial Cells and Macrophages in Response to Brucella abortus Infection. PLoS One. 2015 Oct 8;10(10):e0140408.  [Content Brief]

  [4]. A Izadpanah, et al. Regulated MIP-3alpha/CCL20 production by human intestinal epithelium: mechanism for modulating mucosal immunity. Am J Physiol Gastrointest Liver Physiol. 2001 Apr;280(4):G710-9.  [Content Brief]