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Spatial and Temporal Control of T Cell Activation Using a Photoactivatable Agonist
Published on: April 25, 2018
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Behaviour of telocytes during physiopathological activation
Lucio Díaz-Flores1, Ricardo Gutiérrez1, Lucio Díaz-Flores1
1Department of Basic Medical Science, Faculty of Medicine, University of La Laguna, Tenerife, Spain.
Seminars in Cell & Developmental Biology
|January 31, 2016
Summary
CD34+ stromal cells/telocytes (CD34+ SC/TCs) are crucial for tissue repair and homeostasis. These cells contribute to regeneration and are implicated in various pathological conditions, including tumors and degenerative changes.
Area of Science:
- Cell Biology
- Histology
- Tissue Engineering
Background:
- CD34+ stromal cells/telocytes (CD34+ SC/TCs) are multifunctional cells involved in tissue organization, repair, and homeostasis.
- These cells play roles in extracellular matrix control, microenvironment creation, intercellular communication, and immunomodulation.
Purpose of the Study:
- To review the multifaceted roles of CD34+ SC/TCs in normal and pathological conditions.
- To elucidate the involvement of CD34+ SC/TCs in tissue regeneration and hyperplasia.
- To examine the transformation of CD34+ SC/TCs during wound repair and their potential role in tumor-associated fibroblasts.
Main Methods:
- Literature review of studies investigating CD34+ SC/TCs.
- Analysis of CD34 and αSMA expression in various tissue samples.
- Morphological and functional characterization of CD34+ SC/TCs in different physiological and pathological states.
Main Results:
- CD34+ SC/TCs are implicated in regeneration across multiple organs (heart, muscle, skin, liver, etc.).
- Hyperplasia of CD34+ SC/TCs is observed in conditions like neuroma, cryptorchidism, inflammatory processes, and benign tumors.
- During repair, CD34+ SC/TCs can transform into myofibroblasts, losing CD34 and gaining αSMA expression.
Conclusions:
- CD34+ SC/TCs are vital for maintaining tissue homeostasis and modulating repair processes.
- These cells contribute to morphogenesis, renewal, and regeneration.
- Understanding CD34+ SC/TC behavior is critical for regenerative medicine and cancer research.
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