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Cell communication in breast cancer
Annals of the Royal College of Surgeons of England
|July 1, 1980
Summary
Human breast cells exhibit direct intercellular communication patterns. Malignant cells lose communication selectivity, potentially promoting metastasis by ignoring or receiving abnormal growth signals.
Area of Science:
- Cell Biology
- Oncology
Background:
- Direct intercellular communication facilitates the exchange of ions and small molecules between adjacent cells.
- Understanding communication patterns in human breast cells is crucial for cancer research.
Purpose of the Study:
- To investigate and compare the direct intercellular communication patterns of normal, pathological, and malignant human breast epithelial cells.
- To determine if malignant mammary cells exhibit altered communication selectivity compared to normal cells.
Main Methods:
- Utilized the 3H-uridine nucleotide transfer method to measure direct intercellular communication.
- Co-cultured various human and non-human mammary fibroblasts and epithelial cells, including malignant cell lines.
Main Results:
- Normal human mammary fibroblasts and epithelium demonstrated selective communication, exchanging nucleotides only within their own cell type.
- Malignant human breast cells, both primary and established lines, lost communication selectivity, acting as non-selective communicators or non-communicators.
- Cells were functionally classified into selective communicators, non-selective communicators, and non-communicators based on communication patterns.
Conclusions:
- Malignant human breast cells exhibit a loss of selective intercellular communication.
- This loss of selectivity may contribute to tumor metastasis by enabling cells to bypass growth inhibitory signals or respond to abnormal stimulatory signals.