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The LINC01612-DVL2-WNT axis promotes human endoderm differentiation.

Mao Li1, Pei Lu1, Jie Yang2

  • 1Department of Biological Repositories, Frontier Science Center for Immunology and Metabolism, Medical Research Institute, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan 430071, China.

Stem Cell Reports
|October 24, 2025
PubMed
Summary
This summary is machine-generated.

Long noncoding RNA LINC01612 is vital for human definitive endoderm differentiation. It stabilizes DVL2 protein, enhancing WNT signaling essential for this developmental process.

Keywords:
DVL2Human endoderm differentiationLINC01612Long noncoding RNAWNT

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Area of Science:

  • Molecular Biology
  • Developmental Biology
  • Genetics

Background:

  • Long noncoding RNAs (lncRNAs) in gene-poor regions are understudied for their roles in cell differentiation.
  • Understanding lncRNA regulation is crucial for unraveling complex developmental processes like endoderm formation.

Purpose of the Study:

  • To identify and characterize novel regulatory factors involved in human definitive endoderm differentiation.
  • To elucidate the molecular mechanism by which LINC01612 influences endoderm development.

Main Methods:

  • Identification of LINC01612 as a key regulator during endoderm differentiation.
  • Utilized short hairpin RNA (shRNA)-mediated knockdown and promoter deletion to assess LINC01612 function.
  • Investigated the interaction between LINC01612 and DVL2, analyzing ubiquitination and protein stability.
  • Assessed the impact on WNT signaling pathways and endoderm differentiation efficiency.

Main Results:

  • LINC01612 is a stage-specific lncRNA crucial for human definitive endoderm differentiation.
  • Depletion of LINC01612 severely impairs endoderm formation.
  • LINC01612 enhances DVL2 protein stability by inhibiting its ubiquitination, thereby modulating WNT signaling.

Conclusions:

  • The LINC01612-DVL2-WNT regulatory axis is a critical determinant of human definitive endoderm differentiation.
  • LINC01612 represents a novel therapeutic target for regenerative medicine and developmental studies.