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MicroRNA-603 Promotes Progression of Cutaneous Melanoma by Regulating TBX5

Xianghua Dong1, Ying Wang2, Yan Qu3

  • 1Department of Dermatology, Yantai Municipal Laiyang Central Hospital, 265200, China.

Computational and Mathematical Methods in Medicine
|January 10, 2022
PubMed
Abstract

Insights

MicroRNA-603 promotes cutaneous melanoma progression by regulating TBX5. Silencing microRNA-603 suppressed tumor growth, while TBX5 partially restored it, revealing a novel regulatory mechanism in skin cancer.

Area of Science:

  • Oncology
  • Molecular Biology
  • Dermatology

Background:

  • MicroRNA-603 is implicated in various cancers, but its role in cutaneous melanoma is unclear.
  • Understanding microRNA-603's mechanism in skin cancer is crucial for targeted therapies.

Purpose of the Study:

  • To investigate the role and mechanism of microRNA-603 in cutaneous melanoma.
  • To determine the relationship between microRNA-603 and TBX5 in melanoma cells.

Main Methods:

  • Quantitative real-time PCR (qRT-PCR) and Western blot to assess microRNA-603 and TBX5 expression.
  • Dual-luciferase reporter assay to confirm the interaction between microRNA-603 and TBX5.
  • Cellular assays (MTT, colony formation, Transwell) to evaluate the impact on melanoma cell growth, migration, and invasion.

Main Results:

  • MicroRNA-603 was upregulated in cutaneous melanoma cells and promoted tumor progression.
  • TBX5 expression was downregulated; microRNA-603 directly targeted and regulated TBX5.
  • Inhibition of microRNA-603 suppressed melanoma cell proliferation, migration, and invasion, effects reversible by TBX5 restoration.

Conclusions:

  • MicroRNA-603 promotes cutaneous melanoma malignancy by regulating TBX5 expression.
  • This study elucidates a novel molecular pathway involving microRNA-603 and TBX5 in melanoma.
  • Targeting the microRNA-603/TBX5 axis may offer therapeutic strategies for cutaneous melanoma.

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