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Updated: May 18, 2026
Reprogramming Primary Amniotic Fluid and Membrane Cells to Pluripotency in Xeno-free Conditions
Published on: November 27, 2017
Amniotic fluid stem cells to study mTOR signaling in differentiation
Margit Rosner1, Katharina Schipany, Bharanidharan Shanmugasundaram
1Medical Genetics, Medical University of Vienna, Vienna, Austria.
Abstract:
The protein kinase mTOR is the central player within a pathway, which is known to be involved in the regulation of e.g., cell size, cell cycle, apoptosis, autophagy, aging and differentiation. mTOR activity responds to many signals, including cellular stress, oxygen, nutrient availability, energy status and growth factors. Deregulation of this enzyme is causatively involved in the molecular development of monogenic human diseases, cancer, obesity, type 2 diabetes or neurodegeneration. Recently, mTOR has also been demonstrated to control stem cell homeostasis. A more detailed investigation of this new mTOR function will be of highest relevance to provide more explicit insights into stem cell regulation in the near future. Different cellular tools, including adult stem cells, embryonic stem cells or induced pluripotent stem cells could be used to investigate the role of mTOR in mammalian stem cell biology. Here we discuss the potential of amniotic fluid stem cells to become a promising cellular model to study the role of signaling cascades in stem cell homeostasis.
Insights
The mechanistic target of rapamycin (mTOR) pathway regulates key cellular processes and stem cell homeostasis. Amniotic fluid stem cells offer a promising model to study mTOR
Area of Science:
- Cell Biology
- Molecular Biology
- Biochemistry
Background:
- The mechanistic target of rapamycin (mTOR) pathway is a central regulator of cell growth, metabolism, and survival.
- Dysregulation of mTOR is implicated in various diseases, including cancer, diabetes, and neurodegeneration.
- Recent findings highlight mTOR's role in controlling stem cell homeostasis.
Purpose of the Study:
- To investigate the role of mTOR signaling in mammalian stem cell biology.
- To explore the potential of amniotic fluid stem cells as a model for studying stem cell regulation.
- To gain insights into the mechanisms controlling stem cell homeostasis via mTOR.
Main Methods:
- Review of existing literature on mTOR signaling and stem cell biology.
- Discussion of various stem cell models (adult, embryonic, induced pluripotent, amniotic fluid).
- Focus on the utility of amniotic fluid stem cells for investigating mTOR functions.
Main Results:
- mTOR pathway activity is influenced by diverse signals like nutrients, growth factors, and cellular stress.
- mTOR plays a critical role in maintaining stem cell balance and function.
- Amniotic fluid stem cells present a viable and promising model system.
Conclusions:
- Understanding mTOR's role in stem cell homeostasis is crucial for future research.
- Amniotic fluid stem cells can serve as a valuable tool for dissecting mTOR-mediated signaling in stem cells.
- Further investigation using this model will enhance insights into stem cell regulation.
