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 rat IL-4 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 %
101
Range %
95-110
1:2
Average %
97
Range %
91-105
1:4
Average %
99
Range %
94-104
1:8
Average %
93
Range %
89-98
回收率:
The recovery of human LIF 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)
95
90-101
EDTA plasma (n=4)
98
94-101
標(biāo)準(zhǔn)曲線:
These standard curves are provided for demonstration only. A standard curve should be generated for each set of samples assayed.
Participates in at least several B-cell activation processes as well as of other cell types. It is a costimulator of DNA-synthesis. It induces the expression of class II MHC molecules on resting B-cells. It enhances both secretion and cell surface expression of IgE and IgG1. It also regulates the expression of the low affinity Fc receptor for IgE (CD23) on both lymphocytes and monocytes. Positively regulates IL31RA expression in macrophages. Stimulates autophagy in dendritic cells by interfering with mTORC1 signaling and through the induction of RUFY4.
基因功能參考文獻(xiàn):
age-related decrease in IL-4 expression exacerbated surgery-induced cognitive deficits and exaggerated the neuroinflammatory responses PMID: 28414034
IL-4 Release from a Biomimetic Scaffold for the Temporally Controlled Modulation of Macrophage Response PMID: 26951461
Formoterol synergizes with des-ciclesonide to inhibit IL-4 expression in IgE/antigen-induced mast cells by inhibiting JNK activation. PMID: 26003274
CaSR activation promoted T-cell apoptosis and the secretion of pro-inflammatory cytokine TNF-alpha and anti-inflammatory cytokines IL-4. PMID: 25256599
IL-4 was found to augment the mRNA expression of ICAM-1. PMID: 23904363
IL-4 has a modulatory effect on the enzymatic compartment of the antioxidant defense system in the brain of rats. PMID: 24319732
IL-4 promoted the activation of effector cells to mediate rejection and did not support alloantigen-specific Treg that could transfer specific tolerance. PMID: 24139939
The level of IL-4 is elevated in masseter muscle of both sexes following chemically induced inflammation. PMID: 20969918
Treatment with intranasal interferon gamma can inhibit production of IL4 and IL5 in allergic rhinitis. PMID: 18510219
IL4 in bronchoalveolar lavage fluid of allergic rhinitis rats was elevated. PMID: 16229173
endogenous expression of antiinflammatory cytokine IL-4 regulates the extent of acute macrophage activation and confines the ensuing secondary cavity formation after spinal cord trauma PMID: 20623539
passive rats exposed to emotional stress were characterized by a decreased blood levels of TNF alpha and IL-4 as compared to behaviorally passive controls and behaviorally active animals exposed to stress. PMID: 20120734
A single treatment with IL-4 via retrovirally transduced lymphocytes partially protects against type 1 diabetes in BioBreeding rats. PMID: 12004164
Gene transfer of IL-4 may represent a potential therapeutic approach to induce tolerance to splenic allografts. PMID: 15251393
IL-4 appears to be an important Th2 cytokine involved in the induction of the L-arginine/iNOS pathway in eosinophils PMID: 15826818
synthesis and release from mast cells mediated by Mycoplasma pneumoniae P1 adhesin PMID: 16169702
HSV-mediated expression of IL-4 effectively reduces the behavioral manifestations of neuropathic pain, and reverses some of the biochemical and histologic correlates of neuropathic pain at the spinal level. PMID: 16503976
Data show that islets of non-diabetic BB rats become positive to both IL-1beta and IL-4 very early on, and that production of these interleukins together with the expression of CD4 and CD25 are predictive for type 1 diabetes onset in non-diabetic BB rats. PMID: 16972262
These data suggest that IL-4 may provide a significant immunomodulatory signal which can protect against microglia-mediated neurotoxicity by suppressing the production and release of free radicals. PMID: 17018025
We conclude that IL-4 exerts its anti-inflammatory effects in a limited and target-specific manner, which is delicately regulated by the cellular microenvironment. T PMID: 17442043
Our data demonstrate, for the first time, the neuroprotective effect of IL-4 through cAMP/PKA pathway in thapsigargin-induced photoreceptor cell death. PMID: 19235892