CASC2: An emerging tumour-suppressing long noncoding RNA in human cancers and melanoma

Xin Yu1, Heyi Zheng1, Gary Tse2

  • 1Department of Dermatology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Cell Proliferation
|August 11, 2018
PubMed

Insights

Long noncoding RNA (lncRNA) CASC2 shows tumor-suppressive functions in various cancers. Further research is needed to validate CASC2 as a prognostic biomarker for clinical use.

Area of Science:

  • Molecular oncology
  • RNA biology
  • Cancer genetics

Background:

  • Long noncoding RNAs (lncRNAs) are increasingly recognized for their roles in cancer development.
  • Dysregulation of lncRNAs is a hallmark of tumorigenesis across various cancer types.
  • Cancer Susceptibility Candidate 2 (CASC2) is a lncRNA frequently downregulated in multiple cancers.

Purpose of the Study:

  • To investigate the tumor-suppressive functions of CASC2 in human cancers.
  • To explore the potential of CASC2 as a prognostic biomarker.
  • To consolidate existing evidence on CASC2's role in oncogenesis.

Main Methods:

  • Literature review and meta-analysis of studies investigating CASC2 expression and function in cancer.
  • Analysis of CASC2's molecular mechanisms, including microRNA sequestration and signaling pathway modulation.
  • Evaluation of CASC2's prognostic value in different cancer types.

Main Results:

  • CASC2 exhibits significant tumor-suppressive activity through mechanisms like sequestering oncogenic microRNAs and inhibiting Wnt/β-catenin signaling.
  • Downregulation of CASC2 is observed in endometrial, lung, gastric, and colorectal cancers.
  • Preliminary studies suggest CASC2's potential as a prognostic marker in sporadic cancer cases.

Conclusions:

  • CASC2 plays a crucial tumor-suppressive role in human cancers, including melanoma.
  • Further extensive research and validation are required to establish CASC2 as a reliable clinical prognostic biomarker.
  • CASC2 warrants investigation in additional cancer types to fully elucidate its therapeutic and diagnostic potential.

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