Human LIF enzyme-linked immunoassay kit

Usd: 499 Special Discount

Specification

96T

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Catalog# EH0096

Human LIF enzyme-linked immunoassay kit

Application

ELISA

Reactivity

Human

Standard curve range

0.69~500 pg/ml

Overview

Product Name

Human LIF enzyme-linked immunoassay kit

Product Type

Elisa Kit

Sensitivity

0.10 pg/ml (50 μl)；0.36 pg/ml (10 μl)

pg/ml	O.D.		Average	Corrected
0.00	0.0142	0.0145	0.0143
0.69	0.0244	0.0253	0.0248	0.0105
2.06	0.0432	0.0436	0.0434	0.0291
6.17	0.0940	0.0911	0.0926	0.0782
18.52	0.2485	0.2410	0.2448	0.2304
55.56	0.7105	0.6925	0.7015	0.6872
166.67	1.7840	1.6840	1.7340	1.7197
500.00	3.3730	3.4030	3.3880	3.3737

Precision

	Intra-assay Precision			Inter-assay Precision
Sample Number	S1	S2	S3	S1	S2	S3
Sample Number	22	22	22	6	6	6
Average (pg/ml)	163.4	48.5	10.5	177.7	61.2	12.2
Standard Deviation	9.6	2.3	0.6	5.4	2.3	0.6
Coefficient of Variation (%)	5.9	4.8	6.2	3.0	3.8	4.9

Intra-assay Precision (Precision within an assay) Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.

Inter-assay Precision (Precision between assays) Three samples of known concentration were tested six times on one plate to assess intra-assay precision.

Spike Recovery

The spike recovery was evaluated by spiking 3 levels of human LIF into health human serum sample. The un-spiked serum was used as blank in this experiment.
The recovery ranged from 93% to 116% with an overall mean recovery of 102%.

Sample Value

Sample Matrix	Sample Evaluated	Range (pg/ml)	Detectable (%)	Mean of Detectable (pg/ml)
Serum	30	1.85-16.87	100	4.94

Serum/Plasma – Thirty samples from apparently healthy volunteers were evaluated for the presence of VE Cadherin in this assay. No medical histories were available for the donors.

Experiment Type

Sandwich Elisa

Species Reactivity

Human

Detection Method

Colorimetric

Operation Duration

120min

Standard Curve Gradient

7 Points/3 Folds

Incubation Count

Detectable Sample

Dosing Volume

50 μl/10 μl

Product Features

Storage Condition

Store at 2-8 ℃

Target

UNIPROT

SwissProt: P15018 Human

Alias

CDF

Cholinergic Differentiation Factor

D factor

DIA

Differentiation inducing factor

differentiation inhibitory activity

Differentiation stimulating factor

Differentiation-stimulating factor

Emfilermin

Hepatocyte stimulating factor III

Expand

Function

LIF (leukemia inhibitory factor) is a widely expressed, highly and variably glycosylated, 32‑62 kDa, monomeric, pleiotropic cytokine in the IL‑6 family of helical cytokines. The first exon encoding the signal sequence is alternately spliced, resulting in LIF-D, LIF-M, and LIF‑T mRNAs that produce secreted, extracellular matrix‑associated, and intracellular forms, respectively. LIF-D and LIF-M mRNAs produce identical 180 amino acid (aa) mature sequences. Mature human LIF (180 aa) shares 78%, 82%, 91%, 88 and 87% aa sequence identity with mouse, rat, canine, bovine, and porcine LIF, respectively. The LIF receptor is a heterodimer of a type I transmembrane ligand‑binding subunit, LIFR (gp190), and the type I transmembrane signal transducing subunit, gp130, signaling especially through STAT3 and JAK kinases. Gp130 and members of the LIFR family also mediate the biological effects of Oncostatin M, Cardiotrophin‑1, Galectin‑10, CNTF, IL‑6, IL‑11, and IL‑27. A soluble LIFR has been reported in the mouse. Depending on the cells and their context, LIF either opposes or favors differentiation. LIF produced by the uterine endometrium supports successful implantation of the embryo, promotes proliferation and maintenance of pluripotency in embryonic stem cells, and favors proliferation of progenitor cell types such as hematopoietic stem cells. However, excess LIF blocks differentiation of embryoid bodies, indicating the importance of LIF regulation. LIF is produced by CD4+ T cells in response to activation, and is required by the thymic epithelium to support T cell maturation. LIF expression is up‑regulated by neuronal injury, and promotes motor neuron survival and oligodendrocyte myelination. LIF is produced by the adrenal cortex and likely enhances its production of cortisol and aldosterone. LIF can function as an autocrine growth factor in some pancreatic cancers, but induces differentiation in the myeloid leukemic cell line M1. Tumor LIF can also induce formation of immunosuppressive tumor‑associated macrophages. LIF promotes endometrial remodeling and differentiation of adipocytes and cardiac smooth muscle cells. It promotes regulatory T cell and inhibits Th17 cell differentiation, thus promoting tolerance, down‑regulating inflammation, and contributing to immune tolerance during pregnancy and in the nervous system.

Human LIF enzyme-linked immunoassay kit

Usd: 499 Special Discount

Specification

Overview

Product Name

Product Type

Sensitivity

Precision

Spike Recovery

Sample Value

Experiment Type

Species Reactivity

Detection Method

Operation Duration

Standard Curve Gradient

Incubation Count

Detectable Sample

Dosing Volume

Product Features

Storage Condition

Target

UNIPROT

Alias

Function

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