Human ANGPTL4 ELISA Kit (DEIA3149)

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

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Size
96T
Sample
cell culture supernatant, plasma, serum, urine
Species Reactivity
Human
Intended Use
The Human ANGPTL4 ELISA Kit is an in enzyme-linked immunosorbent assay for the quantitative measurement of human ANGPTL4 in serum, plasma, cell culture supernatants and urine.
Contents of Kit
1. ANGPTL4 Microplate
2. Wash Buffer Concentrate (20X)
3. Standards
4. Assay Diluent A
5. Assay Diluent B
6. Detection Antibody ANGPTL4
7. HRP-Streptavidin Concentrate
8. TMB One-Step Substrate Reagent
9. Stop Solution
Storage
All kit components of this kit are stable at 2-8°C. For more detailed information, please download the following document on our website.
Sensitivity
20 pg/mL

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References


The pan-cancer mutational landscape of the PPAR pathway reveals universal patterns of dysregulated metabolism and interactions with tumor immunity and hypoxia

ANNALS OF THE NEW YORK ACADEMY OF SCIENCES

Authors: Chang, Wai Hoong; Lai, Alvina G.

Peroxisome proliferator-activated receptors (PPARs) are a family of nuclear receptors that regulate lipid metabolism and bioenergetic demands within living systems. Consequently, aberrant expression of PPAR genes could predispose individuals to diseases, including cancer. PPAR signaling exerts pleiotropic functions in cancer, yet little is known about the interactions between genetic and transcriptional events of pathway genes in a pan-cancer context. Employing multidimensional datasets of over 18,000 patients involving 21 cancers, we performed systematic characterization on copy number alteration and differential transcript expression of 74 PPAR pathway genes. We identified 18 genes demonstrating mutually exclusive patterns of loss- and gain-of-function phenotypes. These genes successfully predicted patient survival rates in bladder, renal, glioma, liver, and stomach/esophageal cancers. Dysregulated PPAR signaling in these cancers converged on common downstream pathways associated with multiple metabolic processes. Moreover, clinically relevant relationships between PPARs and hypoxia were observed, where hypoxia further aggravates disease phenotypes in tumor subtypes with aberrant PPAR signaling. In glioma samples, including astrocytoma and oligoastrocytoma, PPAR hyperactivation is associated with immunosuppression through increased regulatory T cell expression. Our analysis reveals underappreciated levels of diversity and conservation in PPAR genes that could lay the groundwork for therapeutic strategies targeting tumor metabolism, immunity, and hypoxia.

Increased ANGPTL3, 4 and ANGPTL8/betatrophin expression levels in obesity and T2D

LIPIDS IN HEALTH AND DISEASE

Authors: Abu-Farha, Mohamed; Al-Khairi, Irina; Cherian, Preethi; Chandy, Betty; Sriraman, Devarajan; Alhubail, Asma; Al-Refaei, Faisal; AlTerki, Abdulmohsen; Abubaker, Jehad

Background: Hypertriglyceridemia is associated with increased risk for cardiovascular diseases and type 2 diabetes (T2D). Angiopoietin like proteins particularly 3, 4 and recently 8 are well established regulators of plasma triglyceride level through regulating the activity of lipoprotein lipase. Plasma level and association between ANGPTL3, 4 and 8 is not well established in human subjects. This study was designed to establish the level of these proteins in plasma and adipose tissues and investigate the association between ANGPTL8 with ANGPTL3 and 4 in T2D and non-diabetics subjects. Methods: A total of 235 subjects were enrolled in this study, 144 non-diabetics and 91 T2D. ANGPTL 3, 4 and 8 levels were measured in plasma by ELISA and using real time RT-PCR in adipose tissues. Results: In this study, we showed that ANGPTL3, 4 and 8 were higher in T2D subjects. Dividing the non-diabetic subjects according to their BMI showed higher level of ANGPTL3, 4 and 8 in obese subjects compared to non-obese subjects. No significant difference was observed between the T2D subjects. ANGPTL8 was showed positive correlation with ANGPTL3 in the non-diabetic subjects in the non-obese (r = 0.2437, p-Value = 0.0543) and obese subjects (r = 0.418, p-Value = 0.0125). No association was observed in the T2D subjects. On the other hand, ANGPTL4 was positively associated with the obese subjects in both the non-diabetics (r = 0.3322, p-Value = 0.0316) and the obese T2D subjects (r = 0.3161, p-Value = 0.0211). Conclusion: In conclusion, our data shows that ANGPTL3, 4 and 8 are increased in obesity and T2D. ANGPTL8 associates with ANGPTL3 in the non-diabetic subjects while it associated more with ANGPTL4 in the obese and T2D subjects. Taken together, this data highlight the role of these proteins in metabolic diseases and how they interact with each other's under different physiological and pathophysiological conditions.

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