Ketamine Promoted Breast Cancer Invasion and Metastasis Through Up-regulating Wnt, BMP, and EGFR Signaling

Area of Science:

• Oncology
• Molecular Biology
• Pharmacology

Background:

• Ketamine is widely used in anesthesia and is a substance of abuse.
• Previous research indicated ketamine promotes breast cancer cell growth.
• The molecular mechanisms underlying ketamine-mediated breast cancer metastasis were previously unknown.

Purpose of the Study:

• To investigate the molecular alterations in ketamine-mediated breast cancer metastasis.
• To elucidate the role of ketamine addiction in cancer progression using a comprehensive approach.
• To identify key molecular pathways and genes involved in ketamine-induced metastasis.

Main Methods:

• Establishment of an orthotropic breast cancer model in mice using EO771 cells.
• Intraperitoneal administration of ketamine (30 mg/kg daily) for 68 days.
• Next-generation sequencing (NGS) and differential gene expression analysis (DEseq) of tumor samples.

Main Results:

• Ketamine administration significantly altered gene expression in breast tumors.
• DEseq analysis identified up-regulation of metastasis-related signaling pathways.
• Key genes identified include BMP5, FZD6, MMP1B, EGFR, WNT5A, BMP7, and DCN.

Conclusions:

• Ketamine addiction up-regulates gene expression in Wnt, EGFR, and BMP signaling pathways.
• These signaling cascades are potentially associated with breast cancer progression and metastasis.
• The study provides insights into the molecular mechanisms of ketamine's impact on breast cancer.