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Thursday, February 16, 2017

Hormone Prostaglandins E2 in promotion of lung cancer cell migration

Kyle J. Norton(Scholar and Master of Nutrients, all right reserved)
Health article writer and researcher; Over 10.000 articles and research papers have been written and published on line, including world wide health, ezine articles, article base, healthblogs, selfgrowth, best before it's news, the karate GB daily, etc.,.
Named TOP 50 MEDICAL ESSAYS FOR ARTISTS & AUTHORS TO READ by Disilgold.com Named 50 of the best health Tweeters Canada - Huffington Post
Nominated for shorty award over last 4 years
Some articles have been used as references in medical research, such as international journal Pharma and Bio science, ISSN 0975-6299.                     

                      Hormone Prostaglandins

Prostaglandins, are a group of lipid mediators, found and isolated from human semen in the 1930s by Ulf von Euler of Sweden, responsible for inflammation features, such as swelling, pain, stiffness, redness and warmth. The hormones are produced by almost all nucleated cells and synthesized in the cell from the essential fatty acids (EFAs), include prostacyclin I2 (PGI2), prostaglandin E2(PGE2), and prostaglandin F2α (PGF2α)

     Hormone Prostaglandins E2 in promotion of lung cancer cell migration

Many human cancers express elevated levels of cyclooxygenase-2 (COX-2), an enzyme responsible for the biosynthesis of prostaglandins. Available clinical data establish the protective effect of COX-2 inhibition on human cancer progression. According to the study by Medical College of Georgia, showed that the COX-2 product prostaglandin E(2) (PGE(2)) acts on cognate receptor EP4 to promote the migration of A549 lung cancer cells. Treatment with PGE(2) enhances tyrosine kinase c-Src activation, and blockade of c-Src activity represses the PGE(2)-mediated lung cancer cell migration. PGE(2) affects target cells by activating four receptors named EP1 to EP4. Use of EP subtype-selective ligand agonists suggested that EP4 mediates prostaglandin-induced A549 lung cancer cellmigration, and this conclusion was confirmed using a short hairpin RNA approach to specifically knock down EP4 expression(7).

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