Gastric Cancer:早期胃癌中能够区分不同预后的黏膜下穿透性病变的分子标志物有哪些?

2020-11-21 MedSci原创 MedSci原创

胃癌(GC)是全球最常见的肿瘤之一,发病率排名第五,死亡率排名第三,2018年约有1033701例新发病例和782685例死亡病例。

        胃癌(GC)是全球最常见的肿瘤之一,发病率排名第五,死亡率排名第三,2018年约有1033701例新发病例和782685例死亡病例。“早期胃癌”(EGC)是指癌局限于胃粘膜和/或粘膜下层,而不论淋巴结有无转移的胃癌形式。在意大利东北部地区的罗马涅(Romagna),经手术治疗早期胃癌约占全部胃癌患者的25%,多年来,关于EGC的定义一直存在争议,因为尽管预后一般良好(5年生存率> 90%),但仍有部分患者预后不佳。迄今为止,每个EGC亚组的分子特征尚未得到深入研究。八十年代初,研究人员发现一种不同的细胞核DNA分布模式与恶性肿瘤有关,即Pen A具有非整倍体和高倍体DNA范围,特征是广泛的粘膜下浸润,淋巴结转移和预后较差,类似于晚期癌的表现,而Pen B亚组的预后较好,因此,本项研究目的是鉴定Pen A,Pen B与局部晚期胃癌(T3N0)之间的差异,以鉴定参与临床结果的生物标志物。

 

        研究人员筛选了33个Pen A,34个Pen B和20个T3N0肿瘤患者,并进行了粘蛋白的免疫组织化学,基因组的拷贝数变异分析,微卫星不稳定性(MSI),TP53突变和杂合性缺失(LOH)分析。结果显示Pen A亚组的特征在于MUC6过表达(p=0.021)。Pen B亚组与GATA6基因的扩增显着相关(p = 0.002)。T3N0组的MSI肿瘤比例更高(p = 0.002),但在EGC类型之间未发现显着差异。最后,TP53基因分析显示32.8%的Pen肿瘤在5-8号外显子中有突变,TP53突变和LOH变异在Pen A和Pen B肿瘤中非常常见(p = 0.022)。

 

 

        本项研究通过不通胃癌患者的比较,首次发现了一些能够区分早期胃肿瘤的分子和细胞标记物Pen A和PenB的生物标志物。尽管病例较少,但GATA6的拷贝数和MUC6的表达仍能明显区分这两种肿瘤亚型。

 

原始出处:

Chiara Molinari. Et al. Early Gastric Cancer: identification of molecular markers able to distinguish submucosa-penetrating lesions with different prognosis. Gastric Cancer.2020.

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    2021-08-19 hukaixun
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    2021-06-14 skhzy
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    2021-02-08 许安
  5. [GetPortalCommentsPageByObjectIdResponse(id=1712613, encodeId=fa041e1261358, content=<a href='/topic/show?id=9a1c289680' target=_blank style='color:#2F92EE;'>#AST#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2896, encryptionId=9a1c289680, topicName=AST)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8b9831894722, createdName=ms24272190615788285182, createdTime=Tue Aug 17 15:11:25 CST 2021, time=2021-08-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1841602, encodeId=5039184160228, content=<a href='/topic/show?id=18bf61953d3' target=_blank style='color:#2F92EE;'>#标志物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61953, encryptionId=18bf61953d3, topicName=标志物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Thu Aug 19 07:11:25 CST 2021, time=2021-08-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1893692, encodeId=0d2718936928d, content=<a href='/topic/show?id=4fc4e85161' target=_blank style='color:#2F92EE;'>#gastric#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7851, encryptionId=4fc4e85161, topicName=gastric)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=9b30126, createdName=skhzy, createdTime=Mon Jun 14 00:11:25 CST 2021, time=2021-06-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2073169, encodeId=bb4920e316922, content=<a href='/topic/show?id=9d4ee84647' target=_blank style='color:#2F92EE;'>#GAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7846, encryptionId=9d4ee84647, topicName=GAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e2dd327, createdName=许安, createdTime=Mon Feb 08 09:11:25 CST 2021, time=2021-02-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=901600, encodeId=3b5f9016002c, content=受教了, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=34e15437547, createdName=ms1000001975947593, createdTime=Mon Nov 23 22:53:13 CST 2020, time=2020-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1520075, encodeId=f8e615200e522, content=<a href='/topic/show?id=6ab11032506f' target=_blank style='color:#2F92EE;'>#黏膜#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103250, encryptionId=6ab11032506f, topicName=黏膜)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=057f11309297, createdName=snowpeakxu, createdTime=Mon Nov 23 02:11:25 CST 2020, time=2020-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=901182, encodeId=924f9011829d, content=如何下载?求教老师, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTKDMz5BSaVhSrJ0xYqPq2zsLm21RkXKG2rexlFmyMMmmvlnclNybwGQcpmFVsYvCKRQzHfMGZrSiaQ/132, createdBy=a3ce5317294, createdName=水晶, createdTime=Sun Nov 22 15:28:07 CST 2020, time=2020-11-22, status=1, ipAttribution=)]
    2020-11-23 ms1000001975947593

    受教了

    0

  6. [GetPortalCommentsPageByObjectIdResponse(id=1712613, encodeId=fa041e1261358, content=<a href='/topic/show?id=9a1c289680' target=_blank style='color:#2F92EE;'>#AST#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2896, encryptionId=9a1c289680, topicName=AST)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8b9831894722, createdName=ms24272190615788285182, createdTime=Tue Aug 17 15:11:25 CST 2021, time=2021-08-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1841602, encodeId=5039184160228, content=<a href='/topic/show?id=18bf61953d3' target=_blank style='color:#2F92EE;'>#标志物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61953, encryptionId=18bf61953d3, topicName=标志物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Thu Aug 19 07:11:25 CST 2021, time=2021-08-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1893692, encodeId=0d2718936928d, content=<a href='/topic/show?id=4fc4e85161' target=_blank style='color:#2F92EE;'>#gastric#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7851, encryptionId=4fc4e85161, topicName=gastric)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=9b30126, createdName=skhzy, createdTime=Mon Jun 14 00:11:25 CST 2021, time=2021-06-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2073169, encodeId=bb4920e316922, content=<a href='/topic/show?id=9d4ee84647' target=_blank style='color:#2F92EE;'>#GAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7846, encryptionId=9d4ee84647, topicName=GAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e2dd327, createdName=许安, createdTime=Mon Feb 08 09:11:25 CST 2021, time=2021-02-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=901600, encodeId=3b5f9016002c, content=受教了, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=34e15437547, createdName=ms1000001975947593, createdTime=Mon Nov 23 22:53:13 CST 2020, time=2020-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1520075, encodeId=f8e615200e522, content=<a href='/topic/show?id=6ab11032506f' target=_blank style='color:#2F92EE;'>#黏膜#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103250, encryptionId=6ab11032506f, topicName=黏膜)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=057f11309297, createdName=snowpeakxu, createdTime=Mon Nov 23 02:11:25 CST 2020, time=2020-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=901182, encodeId=924f9011829d, content=如何下载?求教老师, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTKDMz5BSaVhSrJ0xYqPq2zsLm21RkXKG2rexlFmyMMmmvlnclNybwGQcpmFVsYvCKRQzHfMGZrSiaQ/132, createdBy=a3ce5317294, createdName=水晶, createdTime=Sun Nov 22 15:28:07 CST 2020, time=2020-11-22, status=1, ipAttribution=)]
    2020-11-23 snowpeakxu
  7. [GetPortalCommentsPageByObjectIdResponse(id=1712613, encodeId=fa041e1261358, content=<a href='/topic/show?id=9a1c289680' target=_blank style='color:#2F92EE;'>#AST#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=30, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=2896, encryptionId=9a1c289680, topicName=AST)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=8b9831894722, createdName=ms24272190615788285182, createdTime=Tue Aug 17 15:11:25 CST 2021, time=2021-08-17, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1841602, encodeId=5039184160228, content=<a href='/topic/show?id=18bf61953d3' target=_blank style='color:#2F92EE;'>#标志物#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=0, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=61953, encryptionId=18bf61953d3, topicName=标志物)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=6ab940, createdName=hukaixun, createdTime=Thu Aug 19 07:11:25 CST 2021, time=2021-08-19, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1893692, encodeId=0d2718936928d, content=<a href='/topic/show?id=4fc4e85161' target=_blank style='color:#2F92EE;'>#gastric#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=34, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7851, encryptionId=4fc4e85161, topicName=gastric)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=9b30126, createdName=skhzy, createdTime=Mon Jun 14 00:11:25 CST 2021, time=2021-06-14, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=2073169, encodeId=bb4920e316922, content=<a href='/topic/show?id=9d4ee84647' target=_blank style='color:#2F92EE;'>#GAS#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=24, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=7846, encryptionId=9d4ee84647, topicName=GAS)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=e2dd327, createdName=许安, createdTime=Mon Feb 08 09:11:25 CST 2021, time=2021-02-08, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=901600, encodeId=3b5f9016002c, content=受教了, beContent=null, objectType=article, channel=null, level=null, likeNumber=81, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=34e15437547, createdName=ms1000001975947593, createdTime=Mon Nov 23 22:53:13 CST 2020, time=2020-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1520075, encodeId=f8e615200e522, content=<a href='/topic/show?id=6ab11032506f' target=_blank style='color:#2F92EE;'>#黏膜#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=37, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=103250, encryptionId=6ab11032506f, topicName=黏膜)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=057f11309297, createdName=snowpeakxu, createdTime=Mon Nov 23 02:11:25 CST 2020, time=2020-11-23, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=901182, encodeId=924f9011829d, content=如何下载?求教老师, beContent=null, objectType=article, channel=null, level=null, likeNumber=83, replyNumber=0, topicName=null, topicId=null, topicList=[], attachment=null, authenticateStatus=null, createdAvatar=http://thirdwx.qlogo.cn/mmopen/vi_32/Q0j4TwGTfTKDMz5BSaVhSrJ0xYqPq2zsLm21RkXKG2rexlFmyMMmmvlnclNybwGQcpmFVsYvCKRQzHfMGZrSiaQ/132, createdBy=a3ce5317294, createdName=水晶, createdTime=Sun Nov 22 15:28:07 CST 2020, time=2020-11-22, status=1, ipAttribution=)]
    2020-11-22 水晶

    如何下载?求教老师

    0

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