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MiR-1284 suppresses the proliferation and migration of thyroid cancer

Lingjie Zhang1, Rui Ge2, Aiqun Cheng3

  • 1Department of General Surgery, Huadong Hospital Affiliated to Fudan University, Shanghai, China. zljzyy1101@163.com.

Cellular and Molecular Biology (Noisy-Le-Grand, France)
|September 16, 2023
PubMed

Insights

MicroRNA-1284 (miR-1284) is downregulated in thyroid cancer (TC) tissues but upregulated in patient blood. Upregulating miR-1284 suppresses cancer cell growth and migration, suggesting its potential as a biomarker.

Area of Science:

  • Oncology
  • Molecular Biology
  • Biochemistry

Background:

  • Thyroid cancer (TC) is a significant health concern.
  • The role of microRNAs in cancer development is increasingly recognized.
  • Specific microRNAs may serve as diagnostic or therapeutic targets in TC.

Purpose of the Study:

  • To investigate the role of microRNA-1284 (miR-1284) in thyroid cancer (TC).
  • To elucidate the underlying mechanisms of miR-1284's function in TC.
  • To assess miR-1284 as a potential biomarker for TC.

Main Methods:

  • Differential expression analysis of miR-1284 in TC and normal thyroid tissues.
  • Assessment of miR-1284's regulatory effects on cell proliferation, migration, and apoptosis.
  • Analysis of miR-1284 levels in TC patient tissues and peripheral blood.
  • Examination of miR-1284 in culture medium and exosomes from papillary TC (PTC) cells.

Main Results:

  • miR-1284 was downregulated in TC tissues compared to normal thyroid tissues.
  • Overexpression of miR-1284 inhibited proliferation and migration, and induced apoptosis in TC cell lines (TPC-1, FTC-133).
  • miR-1284 upregulated E-cadherin and downregulated N-cadherin in papillary TC cells.
  • miR-1284 levels were upregulated in the peripheral blood of TC patients and in exosomes from PTC cells.

Conclusions:

  • miR-1284 acts as a tumor suppressor in thyroid cancer by inhibiting proliferation and migration and promoting apoptosis.
  • Upregulated miR-1284 in peripheral blood of TC patients may originate from exosomes secreted by PTC cells.
  • miR-1284 holds potential as a diagnostic biomarker and therapeutic target for thyroid cancer.

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