Related Experiment Video
Updated: Feb 11, 2026

05:42
Author Spotlight: Advancements in Stem Cell Regenerative Therapy Through Photobiomodulation
Published on: April 5, 2024
1.5K
Systemic Effect of Thermo-Photobiomodulation on Mesenchymal Stem Cells
V I Yusupov1, R K Chailakhyan2, A G Grosheva2
1National Research Centre "Kurchatov Institute", Moscow, Russia.
Bulletin of Experimental Biology and Medicine
|February 9, 2026
Summary
Thermo-photobiomodulation (TPBM) temporarily increases mesenchymal stem cells (MSCs) in bone marrow and spleen. Repeated TPBM sessions enhance MSC growth in injured areas, aiding tissue regeneration.
Area of Science:
- Biomedical Engineering
- Regenerative Medicine
- Stem Cell Biology
Background:
- Mesenchymal stem cells (MSCs) are crucial for tissue repair and regeneration.
- Photobiomodulation is an emerging therapeutic approach for tissue healing.
- Understanding the systemic effects of therapies on MSCs is vital for clinical translation.
Purpose of the Study:
- To investigate the systemic effects of thermo-photobiomodulation (TPBM) on MSCs.
- To evaluate the influence of repeated TPBM sessions in vivo.
- To assess the impact of localized laser irradiation on MSC distribution.
Main Methods:
- Rats underwent localized laser irradiation (970 nm) of tibial bone marrow.
- MSC counts were analyzed in bone marrow and spleen post-irradiation.
- Comparisons were made between single and repeated TPBM sessions.
Main Results:
- TPBM significantly increased MSC counts temporarily in both irradiated and distant tissues.
- Repeated TPBM sessions demonstrated enhanced MSC growth in the injured area compared to single sessions.
- The study observed systemic mobilization and regulation of MSCs by TPBM.
Conclusions:
- TPBM effectively influences MSC distribution and proliferation systemically.
- Repeated TPBM sessions show potential for enhanced regenerative capacity.
- These findings support TPBM as a promising strategy for cell therapy and tissue regeneration.
Keywords:
bone marrow mesenchymal stem cellscell coloniesfractional thermal laser exposurestimulation of bone marrow MSCsthermo-photobiomodulationMore Related Videos
Related Concept Videos
Mesenchymal Stem Cells
5.6K
Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
5.6K
Adult Stem Cells
33.9K
Stem cells are undifferentiated cells that divide and produce more stem cells or progenitor cells that differentiate into mature, specialized cell types. All the cells in the body are generated from stem cells in the early embryo, but small populations of stem cells are also present in many adult tissues including the bone marrow, brain, skin, and gut. These adult stem cells typically produce the various cell types found in that tissue—to replace cells that are damaged or to continuously...
33.9K
Embryonic Stem Cells
32.6K
Embryonic stem (ES) cells are undifferentiated pluripotent cells, meaning they can produce any cell type in the body. This gives them tremendous potential in science and medicine since they can generate specific cell types for use in research or to replace body cells lost due to damage or disease.
32.6K
Embryonic Stem Cells
5.2K
Embryonic stem (ES) cells were first discovered in mice in 1981 by Martin Evans. In 1998, James Thomson identified a method to isolate embryonic stem cells from humans. Human embryonic stem cells (hESCs) are obtained from 3-5 day old embryos that remain unused after an in vitro fertilization procedure.
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
ES cells are grown in a culture medium where they can divide indefinitely, creating ES cell lines. Under certain conditions, ES cells can differentiate, either spontaneously into a variety of...
5.2K
Induced Pluripotent Stem Cells
28.1K
Stem cells are undifferentiated cells that divide and produce different types of cells. Ordinarily, cells that have differentiated into a specific cell type are post-mitotic—that is, they no longer divide. However, scientists have found a way to reprogram these mature cells so that they “de-differentiate” and return to an unspecialized, proliferative state. These cells are also pluripotent like embryonic stem cells—able to produce all cell types—and are therefore...
28.1K
Second Order systems II
412
In an underdamped second-order system, where the damping ratio ζ is between 0 and 1, a unit-step input results in a transfer function that, when transformed using the inverse Laplace method, reveals the output response. The output exhibits a damped sinusoidal oscillation, and the difference between the input and output is termed the error signal. This error signal also demonstrates damped oscillatory behavior. Eventually, as the system reaches a steady state, the error diminishes to zero.
412

