Blockade of Growth Hormone Receptor Shedding by a Metalloprotease Inhibitor

Insights from growth hormone receptor blockade.

Pegvisomant is a genetically manipulated growth hormone (GH) that disables signal transduction through the GH receptor and thus functions as a GH receptor antagonist. In a series of studies of the metabolic effects of GH in healthy male individuals, pegvisomant has been used to create a model of acute GH deficiency but without the typical alterations in body composition. This review summarizes ...

تأثیر پلی مورفیسم های ژن های هورمون رشد growth hormone و گیرنده ژن هورمون رشد growth hormone receptor روی برخی صفات اقتصادی بز مرغز ایران

در این پژوهش به بررسی وجود پلی مورفیسم در ناحیه پروموتور و اگزون 10 ژن های gh و ghr و ارتباط آنها با صفات رشد در بزهای مرغز پرداخته شد. بدین منظور از سیاهرگ وداج تعداد 160 بز مرغز موجود در ایستگاه اصلاح نژاد استان کردستان خونگیری و dna نمونه ها با استفاده از کیت استخراج گردید. قطعه 391 جفت بازی از ژن gh و 361 جفت بازی از ژن ghr تکثیر شدند. از تفاوت چندشکلی فضایی تک رشته ها (sscp) و توالی یابی ب...

A metalloprotease inhibitor blocks shedding of the 80-kD TNF receptor and TNF processing in T lymphocytes

TNF is synthesized as a 26-kD membrane-anchored precursor and is proteolytically processed at the cell surface to yield the mature secreted 17-kD polypeptide. The 80-kD tumor necrosis factor (TNF) receptor (TNFR80) is also proteolytically cleaved at the cell surface (shed), releasing a soluble ligand-binding receptor fragment. Since processing of TNF and TNFR80 occurs concurrently in activated ...

Generation of novel, secreted epidermal growth factor receptor (EGFR/ErbB1) isoforms via metalloprotease-dependent ectodomain shedding and exosome secretion.

Exosomes are small membrane vesicles derived from intracellular multivescicular bodies (MVBs) that can undergo constitutive and regulated secretion from cells. Exosomes can also secrete soluble proteins through metalloprotease-dependent ectodomain shedding. In this study, we sought to determine whether ErbB1 receptors are present within exosomes isolated from the human keratinocyte cell line, H...

Comparison of Expression of Growth Hormone-Releasing Hormone and Its Receptor Splice Variant 1 in Different Stages of Endometriosis