Prostaglandins are derived from arachidonic acid through the cyclooxygenase (COX) pathway. Two COX isoforms have been recognized. COX-1 is expressed constitutively in various tissues, including the stomach, whereas COX-2 is induced by cytokines, growth factors, tumor promoters and other agents. Prostaglandins have a short life time in vivo because they are metabolized rapidly by oxidation to 15-ketoprostaglandins catalyzed by a cytosolic enzyme named NAD+-dependent 15-hydroxyprostaglandin dehydrogenase (15-PGDH). This enzyme is present ubiquitously in mammalian tissues and is responsible for the biological inactivation of prostaglandins because 15-ketoprostaglandins possess significantly lower biological activities. Prostaglandins have been implicated in a wide variety of physiological and pathological processes. Prostaglandin E2 (PGE2) is a major mediator of inflammation and a key player in the control of various physiological functions. Recently, clinical studies demonstrated that PGE2 causes the growth of body hair and eyelashes in humans and animals. In humans, trials carried out on the scalp have shown that PGE2 could increase the hair density. Furthermore, 15-PGDH is also expressed in hair melanocytes. Inhibition of this enzyme as a target to reduce hair loss has been reported. PGE2 has also been identified as an important mediator of gastric ulcer healing, bone formation, and dermal wound healing. Therefore, inhibitors of 15-PGDH will be valuable for the therapeutic management of such disorders.
저자
Hoon CHO [ Research Center for Resistant Cells, Chosun University, Gwangju 501-759, South Korea. ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
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4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
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