Human FZD1 (Frizzled-1) ELISA Kit (DEIA-FN519)

Regulatory status: For research use only, not for use in diagnostic procedures.

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Size
96T
Sample
serum, plasma, cell culture supernatants, tissue homogenate
Species Reactivity
Human
Intended Use
For quantitative detection of Human FZD1 (Frizzled-1) in serum, plasma, tissue homogenates and other biological fluids.
Contents of Kit
1. 96-well strip plate (Dismountable), 1 plate
2. Lyophilized Standard, 2 vials
3. Sample/Standard dilution buffer, 20 mL
4. Biotin-detection antibody (Concentrated), 120 uL
5. Antibody dilution buffer, 10 mL
6. HRP-Streptavidin Conjugate(SABC), 120 uL
7. SABC dilution buffer, 10 mL
8. TMB substrate, 10 mL
9. Stop solution, 10 mL
10. Wash buffer (25X), 30 mL
11. Plate Sealer, 5 pieces
12. Product Manual, 1 copy
Storage
Store the unopened product at 2 - 8 °C. Do not use past expiration date.
Precision
Intra-Assay: CV<8%
Inter-Assay: CV<10%
Detection Range
0.78-50 ng/mL
Sensitivity
0.469 ng/mL
Standard Curve

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References


Comparative genomics on Wnt8a and Wnt8b genes

INTERNATIONAL JOURNAL OF ONCOLOGY

Authors: Katoh, M; Katoh, M

WNT family ligands transduce signals through FZD1, FZD2, FZD3, FZD4, FZD5, FZD6, FZD7, FZD8, FZD9, FZD10, LRP5, LRP6, ROR1, ROR2 and RYK. WNT 1, WNT2, WNT2B, WNT3, WNT3A, WNT8A, WNT8B, WNT10A and WNT10B are canonical WNTs to activate WNT-beta-catenin pathway. Human WNT8A mRNA is expressed in NT2 cells with neuronal differentiation potential, while human WNT8B mRNA in diffuse type gastric cancer. Here, we identified and characterized the rat Wnt8a and Wnt8b genes by using bioinformatics. The rat Wnt8a gene, consisting of six exons, was located within AC134361.2 genome sequence. The rat Wnt8b gene, consisting of six exons, was located within AC105487.6 and AC103018.7 genome sequences. The rat Wnt8a (355 aa) and Wnt8b (350 aa) with 60.0% total-amino-acid identity were secreted-type proteins with 22 conserved Cys residues and two Asn-linked glycosylation sites. Wnt8b orthologs were more conserved than Wnt8a orthologs. GATA-binding site was located within conserved region of rat Wnt8b and human WNT8B promoters. GATA6 ESTs were expressed in diffuse type gastric cancer, and FGFR2 gene is reported preferentially amplified in diffuse type gastric cancer. KGF-FGFR2-PI3K-GATA6-WNT8B signaling cascade is predicted to play important roles in diffuse type gastric cancer. This is the first report on the rat Wnt8a and Wnt8b genes as well as on the conserved GATA-binding site within rat Wnt8b and human WNT8B promoters.

Role of miR-204 in the Regulation of Apoptosis, Endoplasmic Reticulum Stress Response, and Inflammation in Human Trabecular Meshwork Cells

INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE

Authors: Li, Guorong; Luna, Coralia; Qiu, Jianming; Epstein, David L.; Gonzalez, Pedro

PURPOSE. To investigate the biological functions of miR-204 in human trabecular meshwork (HTM) cells. METHODS. Changes in gene expression induced by miR-204 in HTM cells were evaluated by gene array analysis using arrays and confirmed by quantitative-PCR (Q-PCR). Direct targeting of miR-204 to 12 potential novel targets was confirmed using a luciferase system, and five of them were verified by Western blot analysis. Effects of miR-204 on apoptosis, cell viability, and accumulation of carbonylated proteins were evaluated in HTM cells treated with H2O2. Induction of endoplasmic reticulum (ER) stress markers by tunicamycin was analyzed by Q-PCR, and expression of IL-8 and IL-11 was analyzed by ELISA. RESULTS. MiR-204 decreased the expression of multiple genes in HTM cells. Twelve genes (AP1S2, Bcl2l2, BIRC2, EDEM1, EZR, FZD1, M6PR, RAB22A, RAB40B, SERP1, TCF12, and TCF4) were validated as direct targets of miR-204. Downregulation of expressions at protein levels of Bcl2l2, BIRC2, EZR, M6PR, and SERP1 were confirmed by Western blot analysis. HTM cells transfected with miR-204 showed increased levels of apoptosis, decreased viability, increased accumulation of oxidized proteins after H2O2 treatment, decreased induction of ER stress response markers, and reduced expression of inflammatory mediators IL-8 and IL-11. CONCLUSIONS. MiR-204 potentially plays an important role in the regulation of multiple functions in HTM cells including apoptosis, accumulation of damaged proteins, ER stress response, and expression of inflammatory mediators. (Invest Ophthalmol Vis Sci. 2011;52:2999-3007) DOI:10.1167/iovs.10-6708

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