TGFβ 信号通路在卵巢癌进展和可塑性中的作用。
TGFβ signaling networks in ovarian cancer progression and plasticity.
机构信息
Division of Molecular and Cellular Pathology, Department of Pathology, University of Alabama at Birmingham, WTI 320B, 1824 Sixth Avenue South, Birmingham, AL, 35294, USA.
Department of Obstetrics and Gynecology-Gynecologic Oncology, University of Alabama at Birmingham, Birmingham, AL, 35233, USA.
出版信息
Clin Exp Metastasis. 2021 Apr;38(2):139-161. doi: 10.1007/s10585-021-10077-z. Epub 2021 Feb 15.
Epithelial ovarian cancer (EOC) is a leading cause of cancer-related death in women. Late-stage diagnosis with significant tumor burden, accompanied by recurrence and chemotherapy resistance, contributes to this poor prognosis. These morbidities are known to be tied to events associated with epithelial-mesenchymal transition (EMT) in cancer. During EMT, localized tumor cells alter their polarity, cell-cell junctions, cell-matrix interactions, acquire motility and invasiveness and an exaggerated potential for metastatic spread. Key triggers for EMT include the Transforming Growth Factor-β (TGFβ) family of growth factors which are actively produced by a wide array of cell types within a specific tumor and metastatic environment. Although TGFβ can act as either a tumor suppressor or promoter in cancer, TGFβ exhibits its pro-tumorigenic functions at least in part via EMT. TGFβ regulates EMT both at the transcriptional and post-transcriptional levels as outlined here. Despite recent advances in TGFβ based therapeutics, limited progress has been seen for ovarian cancers that are in much need of new therapeutic strategies. Here, we summarize and discuss several recent insights into the underlying signaling mechanisms of the TGFβ isoforms in EMT in the unique metastatic environment of EOCs and the current therapeutic interventions that may be relevant.
上皮性卵巢癌 (EOC) 是导致女性癌症相关死亡的主要原因。晚期诊断时肿瘤负荷大,伴复发和化疗耐药,导致预后不良。这些并发症与癌症中上皮-间充质转化 (EMT) 相关事件有关,是已知的。在 EMT 过程中,局部肿瘤细胞改变其极性、细胞-细胞连接、细胞-基质相互作用,获得运动性和侵袭性,并具有夸张的转移扩散潜力。EMT 的关键触发因素包括转化生长因子-β (TGFβ) 家族生长因子,这些生长因子由特定肿瘤和转移环境中广泛的细胞类型积极产生。尽管 TGFβ 在癌症中可以作为肿瘤抑制因子或促进因子发挥作用,但 TGFβ 通过 EMT 至少部分发挥其促肿瘤作用。TGFβ 在转录和转录后水平上调节 EMT,如这里所述。尽管最近在 TGFβ 为基础的治疗方面取得了进展,但对于上皮性卵巢癌等急需新治疗策略的癌症,进展有限。在这里,我们总结和讨论了 TGFβ 异构体在 EMT 中的潜在信号机制的一些最新见解,以及在 EOC 独特的转移环境中可能相关的当前治疗干预措施。