Spatial transcriptomics uncovers TAC-OGEs heterogeneity and FN1/MMP9 signature in ameloblastoma - Report - DentalSpire

Spatial transcriptomics uncovers TAC-OGEs heterogeneity and FN1/MMP9 signature in ameloblastoma

  • By

  • Yitong Wang

  • Haiyang Li

  • Chunyu Zhang

  • Xin Peng

  • Jianping Liu

  • Wenya Du

  • Yao Yu

  • Yali Hou

  • Xiangjun Li

  • April 30, 2026

  • 0 min

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Clinical Report: Spatial Transcriptomic Analysis Reveals Heterogeneity of TAC-OGEs

Overview

This study identifies the cellular heterogeneity of ameloblastoma, emphasizing the role of TAC-OGEs at the invasive front, and highlights the spatial expression of FN1 and MMP9 as potential therapeutic targets.

Background

Ameloblastoma is a benign yet locally aggressive odontogenic tumor with a high recurrence rate. Understanding the tumor microenvironment is crucial for elucidating the mechanisms behind its invasive behavior. Recent advancements in spatial transcriptomics provide insights into the cellular composition and interactions within the tumor, which may inform future therapeutic strategies.

Data Highlights

Cell TypeExpression of FN1Expression of MMP9
TAC-OGEsIncreasedIncreased
Other ClustersVariableVariable

Key Findings

  • Ameloblastoma consists of seven primary cell clusters, including TAC-OGEs.
  • Increased expression of FN1 and MMP9 is observed at the invasive front of the tumor.
  • TAC-OGEs exhibit seven distinct subclusters with spatial differentiation from the tumor core to the periphery.
  • Immunohistochemistry confirmed the spatial expression patterns of FN1 and MMP9.
  • The findings suggest TAC-OGEs may play a significant role in local invasion and recurrence of ameloblastoma.

Clinical Implications

Targeting the processes associated with TAC-OGEs may provide a novel therapeutic strategy for ameloblastoma management. Understanding the spatial dynamics of FN1 and MMP9 expression could guide interventions aimed at reducing tumor aggressiveness and recurrence.

Conclusion

The study underscores the importance of cellular heterogeneity in ameloblastoma and suggests that targeting specific tumor microenvironment components may enhance treatment outcomes.

References

  1. Journal of Neuro-Oncology, 2024 -- Assessing the Prognostic Significance of BRMS1+ Microglia Through Single-Cell Anoikis Regulator Patterns in the Immune Landscape of Glioblastoma
  2. Acta Neuropathologica, 2024 -- HOXD12 Characterizes a Subtype of Oligodendroglioma with Aggressive Features Linked to Age
  3. Journal of Neuro-Oncology, 2018 -- Characterization of the Downregulation of the miR-379/miR-656 (C14MC) Cluster and Its Epigenetic and Transcriptional Regulatory Mechanisms in Oligodendrogliomas
  4. The World Health Organization Classification of Odontogenic Lesions: A Summary of the Changes of the 2022 (5th) Edition - PMC
  5. BRAF inhibitors in BRAF V600E-mutated ameloblastoma: systematic review of rare cases in the literature - PubMed
  6. Single-cell transcriptomics reveals cell atlas and identifies cycling tumor cells responsible for recurrence in ameloblastoma | International Journal of Oral Science
  7. Acta Neuropathologica — Changes in DNA Methylation Patterns Between Newly Diagnosed and Recurrent Glioblastoma Cases
  8. The World Health Organization Classification of Odontogenic Lesions: A Summary of the Changes of the 2022 (5th) Edition - PMC
  9. BRAF inhibitors in BRAF V600E-mutated ameloblastoma: systematic review of rare cases in the literature - PubMed
  10. Single-cell transcriptomics reveals cell atlas and identifies cycling tumor cells responsible for recurrence in ameloblastoma | International Journal of Oral Science

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