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Breast Milk Stem Cells: Current Science and Implications for Preterm Infants
Carrie-Ellen Briere1, Jacqueline M McGrath, Todd Jensen
1School of Nursing, University of Connecticut, Storrs (Drs Briere and McGrath); Connecticut Children's Medical Center, Hartford (Drs Briere, McGrath, Matson, and Finck); Department of Pediatrics, University of Connecticut Health Center, Farmington (Mr Jensen); and University of Connecticut School of Medicine, Farmington (Drs Matson and Finck).
Insights
Human breast milk contains stem cells with pluripotent characteristics, offering potential benefits for infant development and regenerative therapies. Further research is crucial to understand their full role and potential applications.
Area of Science:
- Stem cell biology
- Human lactation research
- Infant development
Background:
- Breast milk offers known benefits, but mechanisms for disease protection and neurodevelopment optimization are unclear.
- Recent discovery of stem cells in breast milk suggests a role in infant development.
Purpose of the Study:
- To review and synthesize existing research on the characterization of breast milk stem cells.
- To identify knowledge gaps and areas for future exploration in breast milk stem cell research.
Main Methods:
- A literature search was conducted from August to October 2015.
- Databases searched included CINAHL, PubMed, and reference lists.
- Nine studies focusing on human breast milk stem cell characterization were included.
Main Results:
- Research on breast milk stem cells is emerging, with five teams globally publishing studies.
- Current characterization focuses on stem cells from full-term breast milk.
- These stem cells exhibit variability between mothers and can differentiate into all three germ layers, indicating pluripotency.
Conclusions:
- Significant knowledge gaps remain regarding breast milk stem cells.
- Healthcare professionals should be aware of these cells and ongoing research into infant benefits.
- Further research is needed to characterize stem cells across lactation stages, in preterm milk, and their roles in infant health and regenerative medicine.
Background:
The benefits of breast milk are well described, yet the mechanistic details related to how breast milk protects against acute and chronic diseases and optimizes neurodevelopment remain largely unknown. Recently, breast milk was found to contain stem cells that are thought to be involved in infant development.
Purpose:
The purpose of this review was to synthesize all available research involving the characterization of breast milk stem cells to provide a basis of understanding for what is known and what still needs further exploration.
Methods/Search Strategy:
The literature search was conducted between August and October 2015 using the CINAHL, PubMed, and reference list searching. Nine studies addressed characterization of human breast milk stem cells.
Findings/Results:
Five research teams in 4 countries have published studies on breast milk stem cells. Current research has focused on characterizing stem cells in full-term breast milk. The amount, phenotype, and expression of breast milk stem cells are known to vary between mothers, and they have been able to differentiate into all 3 germ layers (expressing pluripotent characteristics).
Implications For Practice:
There is much to learn about breast milk stem cells. Given the potential impact of this research, healthcare professionals should be aware of their presence and ongoing research to determine benefits for infants.
Implications For Research:
Extensive research is needed to further characterize stem cells in breast milk (full-term and preterm), throughout the stages of lactation, and most importantly, their role in the health of infants, and potential for use in regenerative therapies.
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