Nat Med:哮喘药氨来呫诺——新的减肥药?

2014-01-26 蒋明佳 care health

氨来呫诺主要用于哮喘和口腔溃疡的治疗,近日,研究人员发现氨来呫诺也可以用来治疗肥胖症、糖尿病以及脂肪肝。密歇根大学生命科学研究所的研究人员日前发现一种用于治疗哮喘及其它病症的非专利药物---氨来呫诺(amlexanox),同样可以用于治疗小鼠的肥胖症、糖尿病以及脂肪肝。Mary Sue Coleman生命科学研究所主任Alan Saltiel主持了该项研究,并于2013年2月10日将研究结果发表在

氨来呫诺主要用于哮喘和口腔溃疡的治疗,近日,研究人员发现氨来呫诺也可以用来治疗肥胖症、糖尿病以及脂肪肝。

密歇根大学生命科学研究所的研究人员日前发现一种用于治疗哮喘及其它病症的非专利药物---氨来呫诺(amlexanox),同样可以用于治疗小鼠的肥胖症、糖尿病以及脂肪肝。

Mary Sue Coleman生命科学研究所主任Alan Saltiel主持了该项研究,并于2013年2月10日将研究结果发表在了Nature Medicine 网络期刊上。

“对于某些人群而言,控制饮食无法达到预想的减肥效果,其中的一个原因就是机体代谢功率降低,能量消耗减少,从而继续维持原有的体重,”Saltiel说,“氨来呫诺(amlexanox)可以促进老鼠的新陈代谢,加快体内能量的消耗。”

目前,氨来呫诺(amlexanox)在不同的国家用于治疗不同的疾病,在日本用于治疗哮喘,而在美国则用于治疗口腔溃疡。在密歇根大学,Saltiel与临床实验专家一起对氨来呫诺(amlexanox)是否可以用于治疗人类肥胖症和糖尿病进行了试验,此外他还与药用化学家合作优化了氨来呫诺(amlexanox)的原有配方,从而开发了一种新型药物。

早在2009年,Saltiel实验室就已经发现基因IKKE和TBK1在维持代谢平衡过程中起到了重要的作用,而该研究进一步证实了这一观点。

“氨来呫诺(amlexanox)可以抑制小鼠体内两种基因(IKKE和TBK1)的功能,而这两种基因如果共同作用可以抑制代谢功能,”Saltiel说,“因此,氨来呫诺(amlexanox)可以‘解放’新陈代谢,从而消耗更多的能量。”

在LSI化学基因组中心,研究人员希望通过高通量化学筛选方法搜索可以抑制IKKE和TBK1基因的化合物,结果发现了一种非专利药物:氨来呫诺(amlexanox)。随后,他们论证了氨来呫诺(amlexanox)对由于遗传以及饮食导致的肥胖小鼠都有明显的减肥效果。这种化学物质可以降低肥胖小鼠的体重,解决一些代谢问题,例如糖尿病和脂肪肝。

“这些研究表明,至少在老鼠身上,IKKE和TBK1基因对于存储能量、减少消耗、维持体重有重要作用,而该化合物可以抑制这两种基因的作用,从而达到提高机体代谢率、减轻体重、治疗糖尿病以及脂肪肝的目的。”Saltiel说。

但是,研究人员还不清楚人体是否也会有同样的反应机理,是否可以根据小鼠实验中的发现制造一种安全有效、可以治疗人类肥胖以及糖尿病的药物。Saltiel表示,会朝着这个目标不断努力。

原文出处:
Shannon M Reilly,Shian-Huey Chiang,Stuart J Decker,Louise Chang,Maeran Uhm,Martha J Larsen, John R Rubin,Jonathan Mowers,Nicole M White,Irit Hochberg,Michael Downes, Ruth T Yu,Christopher Liddle,Ronald M Evans,Dayoung Oh,Pingping Li,Jerrold M Olefsky& Alan R Saltiel.An inhibitor of the protein kinases TBK1 and IKK-ε improves obesity-related metabolic dysfunctions in mice.Nature Medicine 19, 313–321 (2013) doi:10.1038/nm.3082

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    2014-07-13 huangdf
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    2014-04-29 liye789132251
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