Sigma Proteins: Evolution of the Concept of Sigma Receptors

·
· Handbook of Experimental Pharmacology 第 244 冊 · Springer
電子書
330

關於本電子書

Two sigma receptor subtypes have been proposed, sigma1 and 2. Much of our understanding of this system is based on biochemical and pharmacological characterization of the cloned sigma1 receptor subtype (Sigma1). It has become clear that sigma receptors are not canonical receptors. Sigma1 is highly conserved among mammalian species, however, it does not share significant homology with any other mammalian protein. Although a range of structurally diverse small molecules bind Sigma1 with high affinity, and it has been associated with a broad range of signaling systems, Sigma1 itself has no known signaling or enzymatic activity. The evolution of this field over nearly four decades has more recently led to a fundamental shift in the concept of “sigma receptors” to what may more accurately and generally be called sigma proteins. Largely based on traditional pharmacologic approaches, the Sigma1 protein has been associated with a broad range of signaling systems, including G-protein coupled receptors, NMDA receptors, and ion channels. Sigma proteins have been linked to a range of physiological processes, including intracellular calcium signaling, neuroprotection, learning, memory, and cognition. Emerging genetic, clinical, and mechanism focused molecular pharmacology data demonstrate the involvement of proteins in a range of pathophysiologies and disorders including neurodegenerative disease, pain, addiction, psychomotor stimulant abuse, and cancer. However, an understanding of the physiological role of sigma proteins has remained elusive. Emerging data associate Sigma1 with chaperone-like activities or molecular scaffold functions. This book aims to provide an updated perspective on this rapidly evolving field undergoing changes in fundamental concepts of key importance to the discipline of pharmacology. It focusses on the reported roles of sigma proteins in pathophysiology and on emergent therapeutic initiatives.

關於作者

Felix J Kim PhD, Drexel University, College of Medicine, Pharmacology and Physiology, Philadelphia, USAGavril Pasternak MD Ph., Memorial Sloan-Kettering Cancer Center, Anne Burnett Tandy Chair in Neurology, Molec Pharmacology and Chemistry, New York, USA

為這本電子書評分

歡迎提供意見。

閱讀資訊

智慧型手機與平板電腦
只要安裝 Google Play 圖書應用程式 Android 版iPad/iPhone 版,不僅應用程式內容會自動與你的帳戶保持同步,還能讓你隨時隨地上網或離線閱讀。
筆記型電腦和電腦
你可以使用電腦的網路瀏覽器聆聽你在 Google Play 購買的有聲書。
電子書閱讀器與其他裝置
如要在 Kobo 電子閱讀器這類電子書裝置上閱覽書籍,必須將檔案下載並傳輸到該裝置上。請按照說明中心的詳細操作說明,將檔案傳輸到支援的電子閱讀器上。