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Single-Cell Transcriptome Analysis Reveals Mesenchymal Stem Cells in Cavernous Hemangioma.

Fulong Ji1, Yong Liu1, Jinsong Shi2,3

  • 1Department of Paediatric Surgery, Tianjin Medical University General Hospital, Tianjin, China.

Frontiers in Cell and Developmental Biology
|July 22, 2022
PubMed
Summary

Cavernous hemangiomas may originate from embryonic mesenchymal stem cells (MSCs). Proinflammatory cytokines and UCHL1 gene are key in MSC-induced immune responses and apoptosis, offering diagnostic markers for these vascular malformations.

Keywords:
MSCUCHL1scRNA-seqstem cellvascular tumour

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Area of Science:

  • Vascular biology and developmental origins of disease.

Background:

  • Cavernous hemangiomas are congenital vascular malformations with debated origins.
  • Understanding their cellular heterogeneity is crucial for diagnosis and treatment.

Purpose of the Study:

  • To investigate the cellular and molecular underpinnings of cavernous hemangioma formation.
  • To identify the cell types and pathways involved in their development and progression.

Main Methods:

  • Single-cell RNA sequencing (scRNA-seq) to analyze cellular heterogeneity.
  • In-depth characterization of mesenchymal stem cells (MSCs) and immune responses.

Main Results:

  • Discovery of a significant population of embryonic mesenchymal stem cells (MSCs) within cavernous hemangiomas.
  • Identification of key proinflammatory cytokines (TNF, TNFSF13B, TNFRSF12A, TNFAIP6, C1QTNF6) and the UCHL1 gene in MSC-induced immune responses and apoptosis.
  • UCHL1 identified as a potential marker gene for embryonic MSCs at various apoptosis stages.

Conclusions:

  • Embryonic MSCs are proposed as the origin of cavernous hemangiomas.
  • MSC-induced immune responses and UCHL1-mediated apoptosis are critical in hemangioma pathogenesis.
  • Findings provide insights into diagnosis, therapy, and future research for MSC-related tumors.