Nature:糖尿病为何“那么坏”,是“免疫细胞”在作祟!

2016-11-06 生物探索 生物探索

炎症是糖尿病患者会产生心脏病、中风、肾病和其它相关并发症的主要原因之一。11月2日,在线发表于Nature杂志上的一项研究中,华盛顿大学的科学家们鉴定出了慢性炎症一种可能的触发机制。原来,又是一种免疫细胞在作怪。炎症是糖尿病患者会产生心脏病、中风、肾病和其它相关并发症的主要原因之一。11月2日,在线发表于Nature杂志上的一项研究中(论文题目:Fatty acid synthesis confi

炎症是糖尿病患者会产生心脏病、中风、肾病和其它相关并发症的主要原因之一。11月2日,在线发表于Nature杂志上的一项研究中,华盛顿大学的科学家们鉴定出了慢性炎症一种可能的触发机制。原来,又是一种免疫细胞在作怪。




炎症是糖尿病患者会产生心脏病、中风、肾病和其它相关并发症的主要原因之一。11月2日,在线发表于Nature杂志上的一项研究中(论文题目:Fatty acid synthesis configures the plasma membrane for inflammation in diabetes),华盛顿大学的科学家们鉴定出了慢性炎症一种可能的触发机制。

先前的研究表明,饮食中太多的脂肪会通过刺激慢性炎症促进胰岛素抵抗。这一研究发现,当一种免疫细胞不能“生产”脂肪时,即使食用高脂肪饮食,小鼠也未形成糖尿病和炎症。

2015年11月,国际糖尿病联合会于发布的第七版糖尿病地图显示,糖尿病的死亡率大于艾滋病、结核病和疟疾死亡率的总和,全球大约每6秒就有1个糖尿病患者死亡。

该研究的通讯作者Clay F. Semenkovich说:“过去的20年里,全球糖尿病患者的数量翻了两番。在降低糖尿病病人患心脏病和中风风险方面,我们取得了一定的进展。然而,接受最佳疗法的患者仍然更可能死于慢性炎症驱动的并发症。”

“现在,我们发现,慢性炎症至少部分是由一种免疫细胞产生的。通过阻断这些细胞内脂肪的产生,有望预防糖尿病患者的炎症发生。这或许也适用于其它疾病,如关节炎、癌症。因为,在这些疾病中,慢性炎症也发挥了作用。”

具体来说,这一研究中,Semenkovich的团队使用了巨噬细胞不能产生脂肪酸合酶(fatty acid synthase,FAS)的转基因小鼠。由FAS介导的内源性脂肪酸合成会影响膜的组成。

“我们惊讶的发现,这类小鼠不会形成饮食诱导的糖尿病。” 该研究的第一作者Xiaochao Wei博士说。删除巨噬细胞中的Fasn(编码FAS的基因)能够预防饮食诱导的胰岛素抵抗、巨噬细胞招募到脂肪组织以及慢性炎症。

随后,通过一系列的动物和细胞培养实验,研究人员发现,如果巨噬细胞不能从内部合成脂肪,这些细胞的外膜就不能响应来自细胞外的脂肪。这能够防止巨噬细胞促成炎症。

需要注意的是,完全消除炎症不是预防糖尿病并发症的办法。因为炎症对清除传染性病原体和帮助伤口愈合也至关重要。不过,Semenkovich表示,这一发现可能具有深远的临床意义。他说:“实际上,作为一种潜在的抗癌药,一种FAS抑制剂已经进入了临床研究。科学家们也在开发抑制糖尿病中FAS的其它药物。”

原始出处:

[1] Cause of inflammation in diabetes identified. Medicalxpress.November 2, 2016.

[2] Xiaochao Wei,et al. Fatty acid synthesis configures the plasma membrane for inflammation in diabetes. Nature.02 November 2016.doi:10.1038/nature20117

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    2017-04-16 liye789132251
  2. [GetPortalCommentsPageByObjectIdResponse(id=1881418, encodeId=cb33188141861, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sun Apr 16 04:02:00 CST 2017, time=2017-04-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=154032, encodeId=40431540320c, content=很好,不错,以后会多学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Nov 07 09:31:40 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153989, encodeId=3de81539897a, content=这篇咨询不错哦,值得学习,对于临床工作和科研思路都很有帮助。, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Nov 07 08:29:49 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153951, encodeId=7afa153951ff, content=期待应用临床。造福患者。, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=01bb1684217, createdName=医张生, createdTime=Mon Nov 07 07:29:04 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153898, encodeId=62d915389825, content=好尴尬, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6KcicAVC1MwuKKTlMLXqAMJ8ynNGaqic2hekc7IZSW2QsmickyYrFgjJ0cw417M5uVjguMDCyEzA7UW1geVTDMuKu/0, createdBy=f80f1721714, createdName=漪佩飞飞, createdTime=Mon Nov 07 00:04:23 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153839, encodeId=0f57153839d8, content=这个荧光挺好看的~, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20161003/IMG57F1CE4724D2E2574.jpg, createdBy=c2eb1960303, createdName=drmike, createdTime=Sun Nov 06 18:48:37 CST 2016, time=2016-11-06, status=1, ipAttribution=)]
    2016-11-07 李东泽

    很好,不错,以后会多学习

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  3. [GetPortalCommentsPageByObjectIdResponse(id=1881418, encodeId=cb33188141861, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sun Apr 16 04:02:00 CST 2017, time=2017-04-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=154032, encodeId=40431540320c, content=很好,不错,以后会多学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Nov 07 09:31:40 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153989, encodeId=3de81539897a, content=这篇咨询不错哦,值得学习,对于临床工作和科研思路都很有帮助。, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Nov 07 08:29:49 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153951, encodeId=7afa153951ff, content=期待应用临床。造福患者。, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=01bb1684217, createdName=医张生, createdTime=Mon Nov 07 07:29:04 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153898, encodeId=62d915389825, content=好尴尬, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6KcicAVC1MwuKKTlMLXqAMJ8ynNGaqic2hekc7IZSW2QsmickyYrFgjJ0cw417M5uVjguMDCyEzA7UW1geVTDMuKu/0, createdBy=f80f1721714, createdName=漪佩飞飞, createdTime=Mon Nov 07 00:04:23 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153839, encodeId=0f57153839d8, content=这个荧光挺好看的~, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20161003/IMG57F1CE4724D2E2574.jpg, createdBy=c2eb1960303, createdName=drmike, createdTime=Sun Nov 06 18:48:37 CST 2016, time=2016-11-06, status=1, ipAttribution=)]
    2016-11-07 李东泽

    这篇咨询不错哦,值得学习,对于临床工作和科研思路都很有帮助。

    0

  4. [GetPortalCommentsPageByObjectIdResponse(id=1881418, encodeId=cb33188141861, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sun Apr 16 04:02:00 CST 2017, time=2017-04-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=154032, encodeId=40431540320c, content=很好,不错,以后会多学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Nov 07 09:31:40 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153989, encodeId=3de81539897a, content=这篇咨询不错哦,值得学习,对于临床工作和科研思路都很有帮助。, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Nov 07 08:29:49 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153951, encodeId=7afa153951ff, content=期待应用临床。造福患者。, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=01bb1684217, createdName=医张生, createdTime=Mon Nov 07 07:29:04 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153898, encodeId=62d915389825, content=好尴尬, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6KcicAVC1MwuKKTlMLXqAMJ8ynNGaqic2hekc7IZSW2QsmickyYrFgjJ0cw417M5uVjguMDCyEzA7UW1geVTDMuKu/0, createdBy=f80f1721714, createdName=漪佩飞飞, createdTime=Mon Nov 07 00:04:23 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153839, encodeId=0f57153839d8, content=这个荧光挺好看的~, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20161003/IMG57F1CE4724D2E2574.jpg, createdBy=c2eb1960303, createdName=drmike, createdTime=Sun Nov 06 18:48:37 CST 2016, time=2016-11-06, status=1, ipAttribution=)]
    2016-11-07 医张生

    期待应用临床。造福患者。

    0

  5. [GetPortalCommentsPageByObjectIdResponse(id=1881418, encodeId=cb33188141861, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=29, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Sun Apr 16 04:02:00 CST 2017, time=2017-04-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=154032, encodeId=40431540320c, content=很好,不错,以后会多学习, beContent=null, objectType=article, channel=null, level=null, likeNumber=59, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Nov 07 09:31:40 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153989, encodeId=3de81539897a, content=这篇咨询不错哦,值得学习,对于临床工作和科研思路都很有帮助。, beContent=null, objectType=article, channel=null, level=null, likeNumber=62, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/jW482SpianMayicTRbRZ5RzUn81b5CF5ibVPib8jWI92iciaxmqGHlwruOnK4SVZykd4iahqo1hicklIibyZoxm55X7EM8BW9eX1h1hQ2/0, createdBy=8aa81937526, createdName=李东泽, createdTime=Mon Nov 07 08:29:49 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153951, encodeId=7afa153951ff, content=期待应用临床。造福患者。, beContent=null, objectType=article, channel=null, level=null, likeNumber=80, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=01bb1684217, createdName=医张生, createdTime=Mon Nov 07 07:29:04 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153898, encodeId=62d915389825, content=好尴尬, beContent=null, objectType=article, channel=null, level=null, likeNumber=66, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=https://wx.qlogo.cn/mmopen/NUyjXTCJjo6KcicAVC1MwuKKTlMLXqAMJ8ynNGaqic2hekc7IZSW2QsmickyYrFgjJ0cw417M5uVjguMDCyEzA7UW1geVTDMuKu/0, createdBy=f80f1721714, createdName=漪佩飞飞, createdTime=Mon Nov 07 00:04:23 CST 2016, time=2016-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=153839, encodeId=0f57153839d8, content=这个荧光挺好看的~, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20161003/IMG57F1CE4724D2E2574.jpg, createdBy=c2eb1960303, createdName=drmike, createdTime=Sun Nov 06 18:48:37 CST 2016, time=2016-11-06, status=1, ipAttribution=)]
    2016-11-07 漪佩飞飞

    好尴尬

    0

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    2016-11-06 drmike

    这个荧光挺好看的~

    0

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