Baidu
map

JBC:尹慧勇研究组发现对动脉粥样硬化具有保护作用的磷脂氧化产物

2017-02-23 佚名 生物帮

2017年2月15日,国际知名生物化学杂志《Journal of BioLogical Chemistry》在线发表了中国科学院上海生命科学研究院健康科学研究所尹慧勇组的研究论文

摘要 : 2017年2月15日,国际知名生物化学杂志《Journal of BioLogical Chemistry》在线发表了中国科学院上海生命科学研究院健康科学研究所尹慧勇组的研究论文。

2017年2月15日,国际知名生物化学杂志《Journal of BioLogical Chemistry》在线发表了中国科学院上海生命科学研究院健康科学研究所尹慧勇组的研究论文:Identification of a Novel Series of Anti-inflammatory and Anti-oxidative Phospholipid Oxidation Products Containing Cyclopentenone Moiety in vitro and in vivo: Implication in Atherosclerosis。研究在低密度脂蛋白(low density lipoprotein, LDL)中发现一类新的磷脂氧化产物,通过细胞、动物和临床实验研究证明这类氧化产物具有抗炎抗氧化的作用,以及对动脉粥样硬化的保护作用。博士研究生陆剑虹为论文第一作者,尹慧勇研究员为论文通讯作者。

心血管疾病是目前全球死亡率最高的疾病,动脉粥样硬化是其发病和死亡的主要病因。在动脉粥样硬化发生发展过程中,炎症和氧化应激发挥重要的作用。近年来在动脉粥样硬化斑块中发现多种磷脂氧化产物,并证实这些氧化产物通过与血管壁中的内皮细胞、巨噬细胞、平滑肌细胞等相互作用,参与动脉粥样硬化发展的每个阶段。但是,由于这些氧化产物具有高度的异质性,所以促进和抑制动脉粥样硬化的作用均有报道。

研究利用脂质组学技术在氧化的低密度脂蛋白(LDL)和人动脉粥样硬化斑块中发现了一类新的磷脂氧化产物deoxy-A2/J2-IsoP-PC,并且其水平在心血管病人血浆中是下降的。通过独立化学合成15d-PGJ2-PC作为代表分子研究这类新产物的生物学功能:研究发现15d-PGJ2-PC通过调控NF-κB, PPARγ和Nrf2信号通路,诱导巨噬细胞抗炎抗氧化应答;在LPS诱导的系统性炎症小鼠模型中,15d-PGJ2-PC减轻多个组织的炎症反应。此外,15d-PGJ2-PC通过下调ERK/SR-A抑制巨噬细胞泡沫细胞的形成。

JBC:中科院健康所尹慧勇研究组发现对动脉粥样硬化具有保护作用的磷脂氧化产物


图示:新型磷脂氧化产物对巨噬细胞的生物活性和在动脉硬化中的作用机制。(A)转录组学发现这类氧化产物和前列腺素15d-PGJ2影响不同基因表达。(B)氧化应激和炎症响应是该氧化产物影响的主要途径。(C)在心血管病人血浆中这类氧化产物水平降低,提示可能具有保护作用。(D)这类氧化产物的形成和可能的作用机制。

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (4)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=2036433, encodeId=8f89203643323, content=<a href='/topic/show?id=0c901025932' target=_blank style='color:#2F92EE;'>#JBC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10259, encryptionId=0c901025932, topicName=JBC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8143398, createdName=lily1616, createdTime=Wed Apr 19 22:58:00 CST 2017, time=2017-04-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1801429, encodeId=06071801429fe, content=<a href='/topic/show?id=4afee383356' target=_blank style='color:#2F92EE;'>#磷脂氧化产物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73833, encryptionId=4afee383356, topicName=磷脂氧化产物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e183245, createdName=Eleven11, createdTime=Thu Nov 23 00:58:00 CST 2017, time=2017-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1944437, encodeId=476b194443e6c, content=<a href='/topic/show?id=411de6300ad' target=_blank style='color:#2F92EE;'>#粥样硬化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76300, encryptionId=411de6300ad, topicName=粥样硬化)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b30d401, createdName=huangshifeng, createdTime=Fri Mar 10 02:58:00 CST 2017, time=2017-03-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1599041, encodeId=1d90159904139, content=<a href='/topic/show?id=f14d2e187ac' target=_blank style='color:#2F92EE;'>#保护作用#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27187, encryptionId=f14d2e187ac, topicName=保护作用)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Sat Feb 25 02:58:00 CST 2017, time=2017-02-25, status=1, ipAttribution=)]
    2017-04-19 lily1616
  2. [GetPortalCommentsPageByObjectIdResponse(id=2036433, encodeId=8f89203643323, content=<a href='/topic/show?id=0c901025932' target=_blank style='color:#2F92EE;'>#JBC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10259, encryptionId=0c901025932, topicName=JBC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8143398, createdName=lily1616, createdTime=Wed Apr 19 22:58:00 CST 2017, time=2017-04-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1801429, encodeId=06071801429fe, content=<a href='/topic/show?id=4afee383356' target=_blank style='color:#2F92EE;'>#磷脂氧化产物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73833, encryptionId=4afee383356, topicName=磷脂氧化产物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e183245, createdName=Eleven11, createdTime=Thu Nov 23 00:58:00 CST 2017, time=2017-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1944437, encodeId=476b194443e6c, content=<a href='/topic/show?id=411de6300ad' target=_blank style='color:#2F92EE;'>#粥样硬化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76300, encryptionId=411de6300ad, topicName=粥样硬化)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b30d401, createdName=huangshifeng, createdTime=Fri Mar 10 02:58:00 CST 2017, time=2017-03-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1599041, encodeId=1d90159904139, content=<a href='/topic/show?id=f14d2e187ac' target=_blank style='color:#2F92EE;'>#保护作用#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27187, encryptionId=f14d2e187ac, topicName=保护作用)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Sat Feb 25 02:58:00 CST 2017, time=2017-02-25, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=2036433, encodeId=8f89203643323, content=<a href='/topic/show?id=0c901025932' target=_blank style='color:#2F92EE;'>#JBC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10259, encryptionId=0c901025932, topicName=JBC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8143398, createdName=lily1616, createdTime=Wed Apr 19 22:58:00 CST 2017, time=2017-04-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1801429, encodeId=06071801429fe, content=<a href='/topic/show?id=4afee383356' target=_blank style='color:#2F92EE;'>#磷脂氧化产物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73833, encryptionId=4afee383356, topicName=磷脂氧化产物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e183245, createdName=Eleven11, createdTime=Thu Nov 23 00:58:00 CST 2017, time=2017-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1944437, encodeId=476b194443e6c, content=<a href='/topic/show?id=411de6300ad' target=_blank style='color:#2F92EE;'>#粥样硬化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76300, encryptionId=411de6300ad, topicName=粥样硬化)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b30d401, createdName=huangshifeng, createdTime=Fri Mar 10 02:58:00 CST 2017, time=2017-03-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1599041, encodeId=1d90159904139, content=<a href='/topic/show?id=f14d2e187ac' target=_blank style='color:#2F92EE;'>#保护作用#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27187, encryptionId=f14d2e187ac, topicName=保护作用)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Sat Feb 25 02:58:00 CST 2017, time=2017-02-25, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=2036433, encodeId=8f89203643323, content=<a href='/topic/show?id=0c901025932' target=_blank style='color:#2F92EE;'>#JBC#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=69, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=10259, encryptionId=0c901025932, topicName=JBC)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=8143398, createdName=lily1616, createdTime=Wed Apr 19 22:58:00 CST 2017, time=2017-04-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1801429, encodeId=06071801429fe, content=<a href='/topic/show?id=4afee383356' target=_blank style='color:#2F92EE;'>#磷脂氧化产物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=60, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=73833, encryptionId=4afee383356, topicName=磷脂氧化产物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e183245, createdName=Eleven11, createdTime=Thu Nov 23 00:58:00 CST 2017, time=2017-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1944437, encodeId=476b194443e6c, content=<a href='/topic/show?id=411de6300ad' target=_blank style='color:#2F92EE;'>#粥样硬化#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=56, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=76300, encryptionId=411de6300ad, topicName=粥样硬化)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=b30d401, createdName=huangshifeng, createdTime=Fri Mar 10 02:58:00 CST 2017, time=2017-03-10, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1599041, encodeId=1d90159904139, content=<a href='/topic/show?id=f14d2e187ac' target=_blank style='color:#2F92EE;'>#保护作用#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=58, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=27187, encryptionId=f14d2e187ac, topicName=保护作用)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=21015, createdName=heli0118, createdTime=Sat Feb 25 02:58:00 CST 2017, time=2017-02-25, status=1, ipAttribution=)]

相关资讯

CELL RES:巨噬细胞CD146促进泡沫细胞在动脉粥样硬化的形成与滞留

动脉壁中胆固醇巨噬细胞(泡沫细胞)的持续存在促进动脉粥样硬化的发展。然而,调节巨噬细胞泡沫细胞的形成并阻止它们从炎症斑块中移出的机制仍然是难以捉摸的。近期,一项发表在CELL RES杂志上的研究报告了粘附受体CD146控制巨噬泡沫细胞的形成和它们在斑块内动脉粥样硬化加重期间的滞留。CD146在人和小鼠粥样斑中的巨噬细胞上表达,并且可以被氧化的低密度脂蛋白(oxLDL)上调。CD146通过在脂质摄取

CIRC RES:预防治疗动脉粥样硬化易损性斑块的可能靶标:AMPKα1

本研究结果表明AMPKα1通过促进CHOP在丝氨酸30的磷酸化介导巨噬细胞中CHOP的泛素化和蛋白酶体降解。AMPKα1可能是预防动脉粥样硬化易损性斑块形成的有效治疗目标。

Circulation:动脉粥样硬化中的重要环节!

坏死的中心一直是脆弱的动脉粥样硬化斑块的标志。尽管凋亡细胞在几乎所有的其他组织床中可以被迅速清除,但是在病变血管中它们的去除似乎显着受损。最新的证据表明,这种现象是由胞葬作用(Efferocytosis)缺陷引起的,一种凋亡组织被吞噬细胞(如巨噬细胞)识别并吞噬的过程。遗传和实验数据表明,胞葬作用受损发生在动脉粥样硬化造成的所谓的“吃我配体”失调中,它可以调控决经历程序性细胞死亡的细胞吞噬。以下是

汇总:近期动脉粥样硬化学术研究成果

动脉粥样硬化(atherosclerosis,AS)是冠心病、脑梗死、外周血管病的主要原因,是动脉壁上沉积一层包括胆固醇结晶在内的粥样物质,使动脉弹性降低、管腔变窄,常导致心肌梗塞、中风等致命疾病发生。关于近期动脉粥样硬化相关研究重大成果,小M与您分享。【1】Diabetes Care:高级糖基化终末产物、氧化产物和动脉粥样硬化程度相关性分析 近日,糖尿病领域权威杂志Diabetes

Diabetes Care:高级糖基化终末产物、氧化产物和动脉粥样硬化程度相关性分析

高级糖基化终末产物和氧化代谢产物与长期的亚临床动脉粥样硬化的严重程度相关,并可能在长期2型糖尿病大血管并发症的患者的“负性代谢记忆”中发挥重要作用。

上海生科院(健康院)科研人员发现一类新的对动脉粥样硬化具有保护作用的磷脂氧化产物

2 月 15 日,国际学术期刊 The Journal of Biological Chemistry 在线发表了中科院上海生科院(健康院)尹慧勇组的研究论文:“Identification of a Novel Series of Anti-inflammatory and Anti-oxidative Phospholipid Oxidation Products Containing Cyc

Baidu
map
Baidu
map
Baidu
map