Intra-assay Precision (Precision within an assay): CV%<8%
Three samples of known concentration were tested twenty times on one plate to assess.
Inter-assay Precision (Precision between assays): CV%<10%
Three samples of known concentration were tested in twenty assays to assess.
線性度:
To assess the linearity of the assay, samples were spiked with high concentrations of human MDC in various matrices and diluted with the Sample Diluent to produce samples with values within the dynamic range of the assay.
Sample
Serum(n=4)
1:1
Average %
86
Range %
82-95
1:2
Average %
92
Range %
85-101
1:4
Average %
100
Range %
94-112
1:8
Average %
93
Range %
85-98
回收率:
The recovery of human MDC spiked to levels throughout the range of the assay in various matrices was evaluated. Samples were diluted prior to assay as directed in the Sample Preparation section.
Sample Type
Average % Recovery
Range
Serum (n=5)
85
80-93
EDTA plasma (n=4)
89
85-98
標準曲線:
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
May play a role in the trafficking of activated/effector T-lymphocytes to inflammatory sites and other aspects of activated T-lymphocyte physiology. Chemotactic for monocytes, dendritic cells and natural killer cells. Mild chemoattractant for primary activated T-lymphocytes and a potent chemoattractant for chronically activated T-lymphocytes but has no chemoattractant activity for neutrophils, eosinophils, and resting T-lymphocytes. Binds to CCR4. Processed forms MDC(3-69), MDC(5-69) and MDC(7-69) seem not be active.
基因功能參考文獻:
MDC might serve as a marker of pharmacological therapy response in major depressive disorder PMID: 28898872
blood CCL22 levels were positively associated with IgE sensitization at age 2. A high cord blood CCL22/CXCL10 chemokine ratio was significantly associated with a higher risk of allergic sensitization at age 3. PMID: 27863395
Tumor-associated macrophages promote prostate cancer migration through activation of the CCL22-CCR4 signaling axis. PMID: 28039457
Elevations in serum MDC and BLC were independently associated with the significant risk of early stage lung adenocarcinoma, even in non-smokers and in stage IA patients. PMID: 27811371
CCL22 plays an important role in supporting gastric cancer development presumably by increasing the percentage of regulatory T cells in the tumor microenvironments. CCL22 levels in sera have a predictive value for gastric cancer peritoneal metastasis and the early recurrence. PMID: 28501127
The CCL22-mediated enhancement of antitumor responses is however not due to conversion, but rather to redirection of existing regulatory T cells to the site of cutaneous overexpression. PMID: 27634754
CCL22 and IL-37 with a co-localization in non-small cell lung cancer A549 cells inhibited the proliferation and epithelial-mesenchymal transition process PMID: 27499437
Our results demonstrate that CCL22 is expressed in human placenta. Decidual expression was only observed in miscarriage conditions and correlates with Treg infiltration. PMID: 25922986
Distinctive Treg associated CCR4-CCL22 expression profile with altered frequency of Th17/Treg cell in the immunopathogenesis of Pemphigus Vulgaris. PMID: 26093920
type I IFN blocks the regulatory T cell-attracting chemokine CCL22 and thus helps limit the recruitment of regulatory T cells to tumors PMID: 26432403
First-episode psychosis patients had higher serum CCL22, which decreased substantially following antipsychotic treatment. PMID: 25970596
Elevated levels of CCL22 found in the ascites could create a chemokine gradient aiding in Treg cells migration. Increased Tregs percentage in the local microenvironment of ovarian cancer might be an important mechanism of immunosuppression. PMID: 25647263
Circulating CCL22 levels are related to both glioma risk and survival duration independent of age, histology, grade and IDH mutation status. CCL22 should be considered a marker of immune status with potential prognostic value PMID: 25604093
CCL22 is a novel mediator of lung inflammation following hemorrhage and resuscitation PMID: 25136780
CCR4 C1014T and CCL22 C16A genetic variations were neither associated with the risk, nor with the progression of colorectal cancer in Iranian population PMID: 25148803
The serum CCL22 levels were affected by genetic variations at SNP rs223818. Accordingly, SNP rs223818 may play a role in the susceptibility to breast cancer. PMID: 25722218
Sesamin suppressed lipopolysaccharide induced CCL22 expression in monocytes through the ER/PPAR-a, the MAPK-p38 pathway, the NFkB-p65 pathway and the epigenetic regulation by suppressing histone H3/H4 acetylation in the CCL22 promoter region. PMID: 25117529
CCL22 could be an immune marker in ANCA-associated vasculitis. PMID: 25352172
Suggest that lower CCL22 levels may play an important role in the pathogenesis of multiple sclerosis in women. PMID: 24254331
CCL22 is an antimicrobial protein with bacteriocidal activity against E. coli and S. aureus. PMID: 12949249
genetic polymorphism is not associated with breast carcinoma in Southern Iranian population PMID: 23268288
both CCL22 and TGF-beta1 are candidate chemoattractants for intratumoral Foxp3 (+)Tregs infiltration; however, unlike the later, CCL22 is an independent prognostic predictor of BC patients. PMID: 24124553
Autistic children had significantly higher serum levels of MDC than healthy controls PMID: 23782855
Data suggest that decreased levels of plasmatic CCL22 may contribute to CD4(+) lymphopaenia. PMID: 23265706
lymph node metastasis of CCR4(+) HNSCC is promoted by CCL22 in an autocrine or M2-like macrophage-dependent paracrine manner. PMID: 23180648
High cord blood levels of the Th2 related chemokine CCL22 were significantly associated with high total- IgE levels during the first 6 years of life, but not with specific sensitization, asthma, eczema or allergic rhinitis. PMID: 23106659
findings suggest that HBV infection and activity of the TGF-beta-miR-34a-CCL22 axis serve as potent etiological factors to predispose hepatocellular carcinoma patients for the development of portal vein tumor thrombus PMID: 22975373
results suggested that suppression of the CCL22 gene using Salmonella induced anti-inflammatory effects PMID: 21823987
Data suggest that variants of C-C motif chemokine 22 (CCL22) play a role in susceptibility to atopic dermatitis (AD) in a gain-of-function manner. PMID: 22125604
chemokine CCL22 may have a role in abdominal aortic aneurysm PMID: 20348247
CCL22 may be responsible for the infiltration of CD4(+)CD25(high) T cells into the pleural space of patients with tuberculous pleurisy. PMID: 20337996
Plasma concentration of CCL22 correlates with the frequency of circulating CD4-positive FoxP3-positive (CD4+FoxP3+) regulatory T cells (Tregs) in human T-lymphotropic virus (HTLV) type 1-infected subjects. PMID: 20525891
Endocrine disrupting chemicals suppressed CCL22 and IP-10 levels in cultured monocytes via, at least in part, the MKK1/2-ERK MAPK pathway and histone H4 acetylation. PMID: 19756997
Data show that MDC/CCL22 is present in the synovial membrane of rheumatoid arthritis (RA) and psoriatic arthritis (PsA) patients and in synovial fluid of patients with RA and PsA, which would enable migration of CCR4 expressing memory cells. PMID: 19942450
Chronic lymphocytic leukemia B cells are endowed with the capacity to attract CD4+, CD40L+ T cells by producing CCL22, suggesting a vicious circle, leading to the progressive accumulation of the neoplastic cells. PMID: 11981828
Neither MDC release nor MDC mRNA was detected in any of the 3 types of fibroblasts stimulated with any of the cytokines examined. PMID: 12642832
Serum levels of TARC and MDC in atopic dermatitis patients were significantly higher than those found in normal controls. PMID: 15113590
CCL22 induced accumulation of phosphatidylinositol-(3,4,5)-trisphosphate in the leukemic T cell line CEM. CCL22 also had the ability to chemoattract human Th2 cells and CEM cells in a pertussis toxin-sensitive manner. PMID: 15187160
CCL17 and CCL22, which are constitutively produced by immature DCs, mediate both T cell polarization and attraction. PMID: 15210758
Elevated bronchial mucosal expression of MDC/CCL22 is implicated in asthma pathogenesis; its action is partly through selective development and retention, or recruitment of T helper type 2, not Th1, receptor-bearing cells. PMID: 15944327
MDC/CCL22 has a role in inhibiting progression of lung cancer PMID: 16453150
These data suggest that the CCL22 level produced by monocyte derived dendritic cells thus reflects the disease activity of Atopic dermatitis (AD) and it may also play an important role regarding the production of CCL22 in the pathogenesis of AD. PMID: 17008059
A trend towards a decreased allelic frequency of the A allele of the CCL22 C/A SNP as well as of the T allele of the CCL17 C/T SNP was found in MS patients compared with controls. PMID: 17967467
HTLV-1-infected T cells produce CCL22 through Tax and selectively interact with CCR4+CD4+ T cells, resulting in preferential transmission of HTLV-1 to CCR4+CD4+ T cells. PMID: 18178833
MDC/CCL22 is likely to play a role in the development of multiple sclerosis in females only, possibly influencing the intracerebral recruitment of Th2 cells, which produce anti-inflammatory cytokines PMID: 18208895
Significantly higher CCL22 expression is associated with gastric cancer PMID: 18224687
although IE86 does repress the UL144-mediated activation of a synthetic NFkB promoter, it is unable to block UL144-mediated activation of the CCL22 promoter, and this lack of responsiveness to IE86 appears to be regulated by binding of CREB. PMID: 18287226
serum CCR4 ligands (CCL17 and CCL22)may be useful inflammatory markers for assessing atopic dermatitis severity in children PMID: 18435706
Development of allergic disease is associated with a more marked Th2-like deviation already at birth, shown as increased levels of cord blood IgE and MDC (CCL22) and higher ratios of MDC (CCL22) to IP-10 (CXCL10) and I-TAC (CXCL11). PMID: 19175890
Regulatory T cells recruited through CCL22/CCR4 are selectively activated in lymphoid infiltrates surrounding primary breast tumors and lead to an adverse clinical outcome. PMID: 19244125
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亞細胞定位:
Secreted.
蛋白家族:
Intercrine beta (chemokine CC) family
組織特異性:
Highly expressed in macrophage and in monocyte-derived dendritic cells, and thymus. Also found in lymph node, appendix, activated monocytes, resting and activated macrophages. Lower expression in lung and spleen. Very weak expression in small intestine. I