scholarly journals Identification of a Lipase-linked Cell Membrane Receptor for Pigment Epithelium-derived Factor

2006 ◽  
Vol 281 (49) ◽  
pp. 38022-38037 ◽  
Author(s):  
Luigi Notari ◽  
Victoriano Baladron ◽  
J. Daniel Aroca-Aguilar ◽  
Natalia Balko ◽  
Raul Heredia ◽  
...  
Keyword(s):  
Cell Membrane ◽  
Pigment Epithelium ◽  
Membrane Receptor ◽  
Pigment Epithelium Derived Factor

Serum levels of chemerin and pigment epithelium-derived factor in patients with psoriasis

2018 ◽  
Vol 31 (1A) ◽  
Author(s):  
Emilia Tekely ◽  
Beata Szostakiewicz-Grabek ◽  
Dorota Krasowska ◽  
Grażyna Chodorowska
Keyword(s):  
Pigment Epithelium ◽  
Serum Levels ◽  
Pigment Epithelium Derived Factor

Pigment Epithelium-Derived Factor: A Novel Therapeutic Target for Cardiometabolic Diseases and Related Complications

2018 ◽  
Vol 25 (13) ◽  
pp. 1480-1500 ◽  
Author(s):  
Sho-ichi Yamagishi ◽  
Takanori Matsui
Keyword(s):  
Cardiovascular Disease ◽  
Pigment Epithelium ◽  
Retinal Pigment ◽  
Visceral Obesity ◽  
Retinal Pigment Epithelial Cells ◽  
Atherosclerotic Cardiovascular Disease ◽  
Cardiometabolic Diseases ◽  
The Metabolic Syndrome ◽  
Pigment Epithelium Derived Factor ◽  
Cardiometabolic Disorders

Pigment epithelium-derived factor (PEDF) is a glycoprotein that belongs to the superfamily of serine protease inhibitors, serpins. It was first identified as a neuronal differentiating factor secreted by human retinal pigment epithelial cells, and then found to be the most potent inhibitor of pathological angiogenesis in mammalian eyes. Recently, PEDF has been shown not only to suppress oxidative stress and inflammatory reactions in vascular wall cells, T cells and macrophages, and adipocytes, but also to exert antithrombotic and anti-fibrotic properties, thereby protecting against the development and progression of various cardiometabolic diseases and related complications. Furthermore, accumulating evidence has suggested that circulating PEDF levels may be a biomarker of severity and prognosis of these devastating disorders. Number of subjects with visceral obesity and insulin resistance is increasing, and the metabolic syndrome and its related complications, such as diabetes, nonalcoholic fatty liver disease/non-alcoholic steatohepatits, and atherosclerotic cardiovascular disease are a growing health challenge. Therefore, in this study, we review the pathophysiological role of PEDF in obesity and metabolic disorders, cardiovascular disease, diabetic eye and kidney complications, liver diseases, and reproductive system disorders, and discuss the potential clinical utility of modulating the expression and actions of PEDF for preventing these cardiometabolic disorders. We also refer to the clinical value of PEDF as a biomarker in cardiometabolic complications.

scholarly journals The Expression Levels and Cellular Localization of Pigment Epithelium Derived Factor (PEDF) in Mouse Testis: Its Possible Involvement in the Differentiation of Spermatogonial Cells

2021 ◽  
Vol 22 (3) ◽  
pp. 1147
Author(s):  
Noy Bagdadi ◽  
Alaa Sawaied ◽  
Ali AbuMadighem ◽  
Eitan Lunenfeld ◽  
Mahmoud Huleihel
Keyword(s):  
Cellular Localization ◽  
Pigment Epithelium ◽  
Testicular Tissue ◽  
Seminiferous Tubules ◽  
Target Cells ◽  
Isolated Cells ◽  
Expression Levels ◽  
Cellular Origin ◽  
Pigment Epithelium Derived Factor

Pigment epithelium derived factor (PEDF) is a multifunctional secretory soluble glycoprotein that belongs to the serine protease inhibitor (serpin) family. It was reported to have neurotrophic, anti-angiogenic and anti-tumorigenic activity. Recently, PEDF was found in testicular peritubular cells and it was assumed to be involved in the avascular nature of seminiferous tubules. The aim of this study was to determine the cellular origin, expression levels and target cells of PEDF in testicular tissue of immature and adult mice under physiological conditions, and to explore its possible role in the process of spermatogenesis in vitro. Using immunofluorescence staining, we showed that PEDF was localized in spermatogenic cells at different stages of development as well as in the somatic cells of the testis. Its protein levels in testicular homogenates and Sertoli cells supernatant showed a significant decrease with age. PEDF receptor (PEDF-R) was localized within the seminiferous tubule cells and in the interstitial cells compartment. Its RNA expression levels showed an increase with age until 8 weeks followed by a decrease. RNA levels of PEDF-R showed the opposite trend of the protein. Addition of PEDF to cultures of isolated cells from the seminiferous tubules did not changed their proliferation rate, however, a significant increase was observed in number of meiotic/post meiotic cells at 1000 ng/mL of PEDF; indicating an in vitro differentiation effect. This study may suggest a role for PEDF in the process of spermatogenesis.

Effect of Pigment Epithelium Derived Factor on Microvascular Cells

2004 ◽  
Vol 131 (2) ◽  
pp. P287-P287
Author(s):  
Shinichi Sakurai ◽  
Nobuo Ohta ◽  
Masaru Aoyagi ◽  
Sanai Sato
Keyword(s):  
Pigment Epithelium ◽  
Pigment Epithelium Derived Factor ◽  
Microvascular Cells
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