Nat Cell Biol:乳腺癌细胞更青睐肺还是骨?

2017-09-21 MedSci MedSci原创

肿瘤的转移一直是肿瘤研究领域的热点问题。2017年9月,中国科学院上海生命科学研究院的胡国宏团队以及山东大学齐鲁医院的杨其峰教授共同完成的、对乳腺癌细胞转移倾向性的研究成果发表在Nat Cell Biol上。


肿瘤的转移一直是肿瘤研究领域的热点问题。2017年9月,中国科学院上海生命科学研究院的胡国宏团队以及山东大学齐鲁医院的杨其峰教授共同完成的、对乳腺癌细胞转移倾向性的研究成果发表在Nat Cell Biol上。

文章中,作者发现肿瘤细胞分泌的DKK1是乳腺癌转移的血清学指标,同时,DKK1也能够抑制肿瘤的肺转移。DKK1通过抑制肿瘤细胞中非经典的WNT/PCP-RAC1-JNK信号而抑制PTGS2介导的巨噬细胞及中性粒细胞向肺转移灶的募集。在肺组织中,DKK1还可以抑制WNT/Ca(2+)-CaMKII-NF-kB信号,从而抑制LTBP1介导的肿瘤细胞TGF-beta的分泌。与此同时,DKK1能够调节成骨细胞中经典的WNT信号,从而促进乳腺癌细胞的骨转移。除此之外,该团队还发现,靶向经典的WNT信号可能不利于转移癌的治疗,而联合JNK和TGF-beta信号的针对性治疗或可有效预防乳腺癌的转移。该研究表明,DKK1在乳腺癌细胞的转移过程中发挥着双重作用,为研究新的抗肿瘤转移提供了新的依据。

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    2018-06-15 liye789132251
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    2018-03-08 维他命
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    2018-05-07 sunylz
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    2017-09-23 yxch36

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