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Nat Immunology:利用脂肪组织逆转Ⅱ型糖尿病

2015-02-11 张楚凡 唐圣闻 环球科学

最新研究发现防止脂肪组织炎症可能是预防或逆转Ⅱ型糖尿病的关键。 Axel Kallies 博士(左)和AjithVasanthakuma博士及他们的同事们发现了一种信号分子,可以阻止脂肪组织感染和逆转Ⅱ型糖尿病的症状。 来自墨尔本沃尔特伊丽莎医学研究所(Walter and Eliza Hall Institute)的研究者们和他们来自日本理化学研究所(RIKEN Inst

最新研究发现防止脂肪组织炎症可能是预防或逆转Ⅱ型糖尿病的关键。

Axel Kallies 博士(左)和AjithVasanthakuma博士及他们的同事们发现了一种信号分子,可以阻止脂肪组织感染和逆转Ⅱ型糖尿病的症状。

来自墨尔本沃尔特伊丽莎医学研究所(Walter and Eliza Hall Institute)的研究者们和他们来自日本理化学研究所(RIKEN Institute)的同事们共同发现通过降低Ⅱ型糖尿病实验室模型脂肪组织的炎症反应,他们能够“逆转”Ⅱ型糖尿病。

AjithVasanthakumar博士、Axel Kallies博士以及研究所里的同事们发现称为调节性T细胞的一种特异性免疫细胞在控制脂肪组织炎症、维持胰岛素敏感性中起到了关键性的作用。这些发现发表在《自然-免疫学》(Nature Immunology)上。

据估计超过85万名澳大利亚人患有Ⅱ型糖尿病,这也是糖尿病中最常见的一种且发病率在逐渐上升。这种疾病与生活方式类影响因素有着很强的关联,比如体重超标或者患有高血压。Ⅱ型糖尿病的长期并发症包括肾脏、眼、心脏的疾病,这些并发症尚无有效的治疗手段。

Ⅱ型糖尿病患者胰岛素敏感性会降低,而胰岛素在正常情况下会促进细胞摄取葡萄糖,因此他们的细胞无法对胰岛素做出正常的反应。这种胰岛素敏感性的降低被认为是由于肥胖人群长期、低水平的脂肪组织感染引起。

Vasanthakumar博士说,作为免疫系统的守卫者,调节性T细胞能够防止免疫系统失控并攻击自身组织。“当调节性T细胞计数下降,炎症性疾病比如糖尿病和风湿性关节炎就可能发生。”他说道。

最近的研究显示脂肪组织有着自己独特的调节性T细胞,而肥胖会使他们从脂肪组织中消失。“肥胖人群脂肪组织的调节性T细胞计数比正常体重人群要低,”Vasanthakumar博士说。“没有了调节性T细胞,致炎细胞计数会升高,而这会引起胰岛素抵抗和高血糖,即Ⅱ型糖尿病的典型特征。”

研究小组发现了一种关键激素——白细胞介素33(interleukin-33)能够选择性地使脂肪组织中的选择性T细胞增生,有效地阻止Ⅱ型糖尿病的发展,甚至在临床前模型中能够逆转这种疾病。

“使用白细胞介素33治疗脂肪组织炎症,使调节性T细胞恢复到正常水平,可以控制感染并降低血糖水平。”Vasanthakumar博士说,“与白细胞介素33相关的治疗有着降低肥胖相关感染,治疗Ⅱ型糖尿病的潜力。”

Kallies博士说这项研究凸显了“健康”的脂肪组织对于保持身体健康的重要性。“我们已经不能把脂肪组织仅仅视为储能站了。”

“脂肪组织正在渐渐被视为分泌激素、调节发育的重要器官。保持脂肪组织的健康对我们全身的健康很重要,而我们的研究强调了脂肪组织在预防疾病扮演者重要的角色。”


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  1. [GetPortalCommentsPageByObjectIdResponse(id=1068517, encodeId=4b14106851e9b, content=已拜读,受益匪浅。, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=6c905475903, createdName=湘雅科教, createdTime=Tue Nov 09 10:39:22 CST 2021, time=2021-11-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1880504, encodeId=af5b1880504d3, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Tue Mar 31 15:45:00 CST 2015, time=2015-03-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=20384, encodeId=fc4b203847e, content=AKI对心衰临床治疗意义重大,但依然需要研究检验其适用性, beContent=null, objectType=article, channel=null, level=null, likeNumber=153, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150920/IMG55FDE671A89482379.jpg, createdBy=cef3108336, createdName=x35042875, createdTime=Sat Apr 11 22:46:00 CST 2015, time=2015-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=16689, encodeId=7437166897a, content=不错的文章,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=135, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f2fb1607679, createdName=orthoW, createdTime=Sun Feb 22 09:20:00 CST 2015, time=2015-02-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=15997, encodeId=30461599e76, content=谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=169, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=cce01615276, createdName=Johnny1989, createdTime=Mon Feb 16 15:24:00 CST 2015, time=2015-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=15737, encodeId=b9f715e37de, content=赞, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c68e1614119, createdName=windmilL1989, createdTime=Mon Feb 16 13:56:00 CST 2015, time=2015-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1345726, encodeId=7b551345e26e0, content=<a href='/topic/show?id=f8c5843e3c5' target=_blank style='color:#2F92EE;'>#脂肪组织#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84373, encryptionId=f8c5843e3c5, topicName=脂肪组织)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=66962500501, createdName=yige2004, createdTime=Fri Feb 13 07:45:00 CST 2015, time=2015-02-13, status=1, ipAttribution=)]
    2021-11-09 湘雅科教

    已拜读,受益匪浅。

    0

  2. [GetPortalCommentsPageByObjectIdResponse(id=1068517, encodeId=4b14106851e9b, content=已拜读,受益匪浅。, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=6c905475903, createdName=湘雅科教, createdTime=Tue Nov 09 10:39:22 CST 2021, time=2021-11-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1880504, encodeId=af5b1880504d3, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Tue Mar 31 15:45:00 CST 2015, time=2015-03-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=20384, encodeId=fc4b203847e, content=AKI对心衰临床治疗意义重大,但依然需要研究检验其适用性, beContent=null, objectType=article, channel=null, level=null, likeNumber=153, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150920/IMG55FDE671A89482379.jpg, createdBy=cef3108336, createdName=x35042875, createdTime=Sat Apr 11 22:46:00 CST 2015, time=2015-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=16689, encodeId=7437166897a, content=不错的文章,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=135, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f2fb1607679, createdName=orthoW, createdTime=Sun Feb 22 09:20:00 CST 2015, time=2015-02-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=15997, encodeId=30461599e76, content=谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=169, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=cce01615276, createdName=Johnny1989, createdTime=Mon Feb 16 15:24:00 CST 2015, time=2015-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=15737, encodeId=b9f715e37de, content=赞, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c68e1614119, createdName=windmilL1989, createdTime=Mon Feb 16 13:56:00 CST 2015, time=2015-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1345726, encodeId=7b551345e26e0, content=<a href='/topic/show?id=f8c5843e3c5' target=_blank style='color:#2F92EE;'>#脂肪组织#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84373, encryptionId=f8c5843e3c5, topicName=脂肪组织)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=66962500501, createdName=yige2004, createdTime=Fri Feb 13 07:45:00 CST 2015, time=2015-02-13, status=1, ipAttribution=)]
    2015-03-31 liye789132251
  3. [GetPortalCommentsPageByObjectIdResponse(id=1068517, encodeId=4b14106851e9b, content=已拜读,受益匪浅。, beContent=null, objectType=article, channel=null, level=null, likeNumber=73, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=6c905475903, createdName=湘雅科教, createdTime=Tue Nov 09 10:39:22 CST 2021, time=2021-11-09, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1880504, encodeId=af5b1880504d3, content=<a href='/topic/show?id=3b2112532d8' target=_blank style='color:#2F92EE;'>#Nat#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=65, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=12532, encryptionId=3b2112532d8, topicName=Nat)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=2e6f107, createdName=liye789132251, createdTime=Tue Mar 31 15:45:00 CST 2015, time=2015-03-31, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=20384, encodeId=fc4b203847e, content=AKI对心衰临床治疗意义重大,但依然需要研究检验其适用性, beContent=null, objectType=article, channel=null, level=null, likeNumber=153, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://cacheapi.medsci.cn/resource/upload/20150920/IMG55FDE671A89482379.jpg, createdBy=cef3108336, createdName=x35042875, createdTime=Sat Apr 11 22:46:00 CST 2015, time=2015-04-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=16689, encodeId=7437166897a, content=不错的文章,学习了, beContent=null, objectType=article, channel=null, level=null, likeNumber=135, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=f2fb1607679, createdName=orthoW, createdTime=Sun Feb 22 09:20:00 CST 2015, time=2015-02-22, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=15997, encodeId=30461599e76, content=谢谢分享!, beContent=null, objectType=article, channel=null, level=null, likeNumber=169, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=cce01615276, createdName=Johnny1989, createdTime=Mon Feb 16 15:24:00 CST 2015, time=2015-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=15737, encodeId=b9f715e37de, content=赞, beContent=null, objectType=article, channel=null, level=null, likeNumber=120, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c68e1614119, createdName=windmilL1989, createdTime=Mon Feb 16 13:56:00 CST 2015, time=2015-02-16, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1345726, encodeId=7b551345e26e0, content=<a href='/topic/show?id=f8c5843e3c5' target=_blank style='color:#2F92EE;'>#脂肪组织#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=84373, encryptionId=f8c5843e3c5, topicName=脂肪组织)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=66962500501, createdName=yige2004, createdTime=Fri Feb 13 07:45:00 CST 2015, time=2015-02-13, status=1, ipAttribution=)]
    2015-04-11 x35042875

    AKI对心衰临床治疗意义重大,但依然需要研究检验其适用性

    0

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    2015-02-22 orthoW

    不错的文章,学习了

    0

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    2015-02-16 Johnny1989

    谢谢分享!

    0

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    2015-02-16 windmilL1989

    0

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