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Updated: Feb 22, 2026

Spatial and Temporal Control of Murine Melanoma Initiation from Mutant Melanocyte Stem Cells
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Mechanisms of CXCR7 induction in malignant melanoma development

Xiao-Jing Li1, Pai Liu1,2, Wei-Wei Tian2

  • 1Department of Dermatology, Affiliated Hospital of Hebei University of Engineering, Handan, Hebei 056002, P.R. China.

Oncology Letters
|September 26, 2017
PubMed

Insights

C-X-C chemokine receptor type 7 (CXCR7) is elevated in malignant melanoma (MM). Inhibiting CXCR7 reduces melanoma cell migration, invasion, and tumor development, suggesting CXCR7 as a therapeutic target for skin cancer.

Area of Science:

  • Oncology
  • Dermatology
  • Molecular Biology

Background:

  • Malignant melanoma (MM) is an aggressive skin cancer with poorly understood pathogenesis.
  • C-X-C chemokine receptor type 7 (CXCR7) is implicated in regulating cancer cell invasion.

Purpose of the Study:

  • To investigate the role and impact of CXCR7 in the development of malignant melanoma.
  • To assess CXCR7 expression in melanoma tissues and its functional effects on melanoma cells.

Main Methods:

  • CXCR7 expression analysis in patient tumor tissues (MM, SCC, BCC).
  • In vitro studies using M14 melanoma cells with CXCR7 knockdown (shRNA) in Transwell assays.
  • In vivo studies using a transplanted mouse model to evaluate tumor growth and vascularization after CXCR7 knockdown.

Main Results:

  • CXCR7 expression was significantly higher in MM tissues compared to other skin cancers.
  • CXCR7 knockdown markedly inhibited melanoma cell migration and invasion in vitro.
  • Reduced tumor size, weight, and vascularity were observed in vivo following CXCR7 knockdown.

Conclusions:

  • CXCR7 plays a crucial role in promoting melanoma cell migration, invasion, and tumor development.
  • CXCR7 interacts with CXCL12 to activate chemokine receptor signaling pathways in melanoma.
  • Targeting CXCR7 may offer a potential therapeutic strategy for malignant melanoma.
Keywords:
CXCR7invasionmalignant melanomasmall hairpin RNA

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