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ASCO 2015:SLC1A5与三阴性乳腺癌TNBC总生存有关

2015-06-07 MedSci MedSci原创

SLC1A5是恶性肿瘤中的一种中性氨基酸转运体,与肿瘤的侵袭转移等生物学行为高度相关。通过靶向干预SLC1A5的功能,能抑制肿瘤细胞生长和激活自吞噬,这可能会改善TNBC的生存,使患者受益。Anna Maria Affan医生通过回顾性队列研究评估TNBC患者的生存状态和SLC1A5的表达水平,探索两者的关系。构建直方图来定义SLC1A5 “高”与“低”的分数,以5作为平均截点。然后应用Kapla

SLC1A5是恶性肿瘤中的一种中性氨基酸转运体,与肿瘤的侵袭转移等生物学行为高度相关。通过靶向干预SLC1A5的功能,能抑制肿瘤细胞生长和激活自吞噬,这可能会改善TNBC的生存,使患者受益。Anna Maria Affan医生通过回顾性队列研究评估TNBC患者的生存状态和SLC1A5的表达水平,探索两者的关系。构建直方图来定义SLC1A5 “高”与“低”的分数,以5作为平均截点。然后应用Kaplan-Meier方法进行组间比较,确定研究队列的总体生存率(P=0.05),认为具有统计学意义。

研究共包括171例TNBC患者,中位数年龄为51岁,且在淋巴结阴性、阳性上具有相同分布。本研究中112例患者可提供生存信息和SLC1A5评分。结果表明, 高表达SLC1A5的患者生存预后较差(P=0.00189)。另外,80例接受化疗的TNBC患者中具有高表达SLC1A5的生存更差(P=0.0005)。研究还发现SLC1A5与CAIX(低氧引起的碳酸酐酶IX)之间存在明显相关性(P=0.0189)。这项研究表明SLCA15与肿瘤组织缺氧有关,在三阴乳腺癌患者中化疗效果差。研究强调评价蛋白参与细胞代谢和自吞噬的重要性,这也许可以帮助我们建立新的治疗方式与目标。SLCA15与 CAIX之间的高度相关意味着后者可能参与肿瘤组织缺氧,本研究需要更多的临床试验进一步验证。

此前也有研究发现SLC1A5与NSCLC有关

相关资料:

Hassanein M, Qian J, Hoeksema MD, Wang J, Jacobovitz M, Ji X, Harris FT, Harris BK, Boyd KL, Chen H, Eisenberg R, Massion PP.Targeting SLC1a5-mediated glutamine dependence in non-small cell lung cancer. Int J Cancer. 2015 Mar 26. doi: 10.1002/ijc.29535

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    2016-03-01 lixiao3326
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    2015-11-02 quxin068
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    2015-06-09 huaxipanxing

    看看

    0

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    2015-06-09 xlysu
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    2015-06-07 liliweini

    学习了

    0

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