Molecular mechanism of microRNAs, long noncoding RNAs, and circular RNAs regulating lymphatic metastasis of bladder cancer

Urol Oncol. 2024 Jan;42(1):3-17. doi: 10.1016/j.urolonc.2023.10.012. Epub 2023 Nov 20.

Abstract

Bladder cancer (BC), a malignancy originating in the epithelial tissue in the inner wall of the bladder, is a common urological cancer type. BC spreads through 3 main pathways: direct infiltration, lymphatic metastasis, and hematogenous metastasis. Lymphatic metastasis is considered a poor prognostic factor for BC and is often associated with lower survival rates. The treatment of BC after lymphatic metastasis is complex and challenging. A deeper understanding of the molecular mechanisms underlying lymphatic metastasis of BC may yield potential targets for its treatment. Here, we summarize the current knowledge on epigenetic factors-including miRNAs, lncRNAs, and circRNAs-associated with lymphatic metastasis in BC. These factors are strongly associated with lymphangiogenesis, cancer cell proliferation and migration, and epithelial-mesenchymal transition processes, providing new insights to develop newer BC treatment strategies.

Keywords: Bladder cancer; CircRNA; LncRNA; Lymphatic metastasis; miRNA.

Publication types

  • Review

MeSH terms

  • Gene Expression Regulation, Neoplastic
  • Humans
  • Lymphatic Metastasis
  • MicroRNAs* / genetics
  • RNA, Circular / genetics
  • RNA, Long Noncoding* / genetics
  • Urinary Bladder Neoplasms* / genetics
  • Urinary Bladder Neoplasms* / pathology

Substances

  • MicroRNAs
  • RNA, Circular
  • RNA, Long Noncoding