期刊
CANCERS
卷 13, 期 2, 页码 -出版社
MDPI
DOI: 10.3390/cancers13020206
关键词
Eph receptors; EphA2; Kaposi’ s sarcoma; endothelial cells
类别
资金
- CANSA
- EDCTP
- European Union (EU)'s Horizon 2020 programme [TMA2018SF-2446-KSHV/HIV]
The Eph receptor family plays a dual role in tumorigenesis, acting as both promoters and suppressors depending on the context. EphA2 is particularly associated with Kaposi's sarcoma (KS) development and plays a significant role in this cancer type. Further research is needed to establish the links between EphA2 signaling and KS oncogenesis.
Simple Summary The Eph receptor family is implicated in both tumour promotion and suppression, depending on the tissue-specific context of available receptor interactions with ligands, adaptor proteins and triggered downstream signalling pathways. This complex interplay has not only consequences for tumorigenesis but also offers a basis from which new cancer-targeting strategies can be developed. This review comprehensively summarises the current knowledge of Eph receptor implications in oncogenesis in a tissue- and receptor-specific manner, with the aim to develop a better understanding of Eph signalling pathways for potential targeting in novel cancer therapies. The Eph receptor tyrosine kinase family, activated by binding to their cognate ephrin ligands, are important components of signalling pathways involved in animal development. More recently, they have received significant interest due to their involvement in oncogenesis. In most cases, their expression is altered, affecting the likes of cell proliferation and migration. Depending on the context, Eph receptors have the potential to act as both tumour promoters and suppressors in a number of cancers, such as breast cancer, colorectal cancer, lung cancer, prostate cancer, brain cancer and Kaposi's sarcoma (KS), the latter being intrinsically linked to EphA2 as this is the receptor used for endothelial cell entry by the Kaposi's sarcoma-associated herpesvirus (KSHV). In addition, EphA2 deregulation is associated with KS, indicating that it has a dual role in this case. Associations between EphA2 sequence variation and KSHV infection/KS progression have been detected, but further work is required to formally establish the links between EphA2 signalling and KS oncogenesis. This review consolidates the available literature of the role of the Eph receptor family, and particularly EphA2, in tumorigenesis, with the aim to develop a better understanding of Eph signalling pathways for potential targeting in novel cancer therapies.
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