GO:0097168 mesenchymal stem cell proliferation: Regulation, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0097168 (mesenchymal stem cell proliferation) describes the multiplication or reproduction of mesenchymal stem cells (MSCs), leading to expansion of the stem cell population.
• MSC proliferation is essential for maintaining a lifelong reservoir of progenitor cells that can differentiate into specialized mesenchymal lineages.
• Aging and replicative senescence reduce MSC proliferative capacity, limiting their regenerative potential.
• MSC proliferation can be enhanced by functionalization strategies, such as genetic modification or preconditioning, to improve therapeutic applications.
• Visualizable MSC-platelet hybrid cells show enhanced proliferation and are being explored for treating intracerebral hemorrhage.
• MSC-derived exosomes and extracts are promising for wound healing and regenerative medicine, but their production depends on sufficient MSC expansion.
Description
Mesenchymal stem cell proliferation (GO:0097168) is the biological process by which mesenchymal stem cells (MSCs) multiply or reproduce, resulting in the expansion of a stem cell population. MSCs are multipotent stromal cells that retain the ability to divide throughout life, providing progenitor cells for specialized mesenchymal tissues such as bone, cartilage, and fat. This process is fundamental for tissue homeostasis, repair, and regeneration, and its dysregulation contributes to aging and degenerative diseases. Understanding the mechanisms that control MSC proliferation is critical for developing cell-based therapies. MSCs are widely studied for their immunomodulatory and regenerative properties, and their therapeutic efficacy often depends on the ability to expand them in vitro without losing stemness. For example, MSC-derived exosomes are being investigated for cancer therapy resistance and diabetic foot ulcer treatment, but scalable production requires efficient MSC proliferation. Similarly, MSC extracts and exosomes for skin wound healing rely on sufficient cell numbers. Thus, GO:0097168 is a central node in regenerative medicine, aging research, and cancer biology.
mesenchymal stem cell proliferation At A Glance
| GO ID | GO:0097168 |
|---|---|
| GO term | mesenchymal stem cell proliferation |
| Ontology | biological_process |
| Synonym | MSC proliferation |
| Definition | The multiplication or reproduction of mesenchymal stem cells, resulting in the expansion of a stem cell population. |
| Major function | Expansion of the MSC pool to supply progenitor cells for mesenchymal tissue differentiation and repair. |
| Related cell type | Mesenchymal stem cell (MSC), a multipotent stromal cell. |
| Physiological context | Tissue homeostasis, regeneration, and aging. |
| Therapeutic relevance | Required for scalable production of MSC-based therapies and MSC-derived exosomes. |
What Is GO:0097168?
According to the Gene Ontology, GO:0097168 (mesenchymal stem cell proliferation) is defined as the multiplication or reproduction of mesenchymal stem cells, resulting in the expansion of a stem cell population. A mesenchymal stem cell (MSC) is a cell that retains the ability to divide and proliferate throughout life to provide progenitor cells that can differentiate into specialized mesenchymal cells. This process is also known by the synonym MSC proliferation.
Why Is mesenchymal stem cell proliferation Important in Cell Biology?
MSC proliferation is a cornerstone of regenerative medicine because it determines the number of stem cells available for differentiation and therapeutic applications. The proliferative capacity of MSCs declines with age, which impairs tissue repair and contributes to degenerative diseases. Moreover, enhancing MSC proliferation through functionalization can improve their therapeutic efficacy in conditions such as intracerebral hemorrhage and wound healing. Therefore, understanding the regulation of GO:0097168 is essential for optimizing MSC-based treatments and for deciphering mechanisms of aging and tissue degeneration.
• Provides a renewable source of progenitor cells for bone, cartilage, and adipose tissue regeneration.
• Decline in MSC proliferation with aging contributes to impaired tissue repair and degenerative diseases.
• Enhancing MSC proliferation is a key strategy for improving cell therapy outcomes.
• MSC proliferation is necessary for producing MSC-derived exosomes for cancer therapy and wound healing.
• Visualizable MSC-platelet hybrid cells with enhanced proliferation show promise for treating intracerebral hemorrhage.
• Dysregulated MSC proliferation may contribute to tumor stroma formation and cancer progression.
• MSC proliferation is critical for preclinical studies in Alzheimer's disease and other neurodegenerative conditions.
• Scalable expansion of MSCs is a bottleneck in manufacturing regenerative medicine products.
What Happens During mesenchymal stem cell proliferation?
Cell cycle entry and progression
In simple terms: MSCs need to enter and progress through the cell cycle to divide.
MSC proliferation begins with the activation of cell cycle machinery, allowing quiescent MSCs to re-enter the cell cycle and progress through G1, S, G2, and M phases. This process is tightly regulated by cyclins, cyclin-dependent kinases, and checkpoint controls. Aging MSCs often exhibit increased expression of cell cycle inhibitors, leading to reduced proliferative capacity.
Growth factor and cytokine signaling
In simple terms: External signals tell MSCs to grow and divide.
MSC proliferation is stimulated by growth factors and cytokines present in the microenvironment, such as those released during tissue injury. Functionalization strategies often involve exposing MSCs to specific growth factors or genetic modifications to enhance their proliferative response. For example, MSC-platelet hybrid cells leverage platelet-derived factors to boost proliferation.
Metabolic reprogramming
In simple terms: Dividing MSCs need energy and building blocks.
Proliferating MSCs undergo metabolic changes to support rapid growth, including increased glycolysis and biosynthesis of macromolecules. These metabolic adaptations are essential for maintaining stemness and preventing senescence.
Senescence and proliferative exhaustion
In simple terms: MSCs eventually stop dividing as they age.
After a finite number of divisions, MSCs enter replicative senescence, characterized by irreversible growth arrest and altered secretory phenotype. This limits their therapeutic potential and contributes to age-related tissue dysfunction. Strategies to delay senescence or enhance proliferation are actively investigated.
Key Genes Involved in GO:0097168 mesenchymal stem cell proliferation
The following genes and proteins are key regulators or markers of mesenchymal stem cell proliferation, based on published literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| CDK1 | Cyclin-dependent kinase 1, drives mitosis | Target for enhancing MSC proliferation |
| CDK2 | Regulates G1/S transition | Modulating cell cycle entry |
| CDK4 | Promotes G1 progression | Key for MSC expansion |
| CDK6 | Partners with CDK4 in G1 | Potential target for proliferation enhancement |
| CCND1 | Cyclin D1, activates CDK4/6 | Overexpression boosts MSC proliferation |
| CCNE1 | Cyclin E1, activates CDK2 | Regulates S phase entry |
| TP53 | Tumor suppressor, induces cell cycle arrest | Its activity limits MSC proliferation |
| CDKN2A | p16INK4a, inhibits CDK4/6 | Increases with MSC aging |
| CDKN1A | p21, inhibits CDKs | Mediates senescence in MSCs |
| MKI67 | Marker of proliferation | Used to assess MSC proliferation |
| PCNA | DNA replication processivity factor | Marker of proliferating MSCs |
| MYC | Transcription factor promoting proliferation | Enhances MSC expansion |
| TERT | Telomerase reverse transcriptase | Extends MSC lifespan |
| AKT1 | Survival and proliferation signaling | Activated in proliferating MSCs |
| MAPK1 | ERK2, mediates growth factor signaling | Drives MSC proliferation |
| CTNNB1 | Beta-catenin, Wnt signaling | Promotes MSC proliferation |
| SOX2 | Stemness transcription factor | Maintains MSC proliferative potential |
| POU5F1 | Oct4, stemness factor | Associated with MSC multipotency |
How Is mesenchymal stem cell proliferation Regulated?
MSC proliferation is regulated by a complex network of signaling pathways, including growth factor signaling (e.g., AKT, MAPK), Wnt/β-catenin, and cell cycle checkpoints. Aging-related pathways, such as p53/p21 and p16/Rb, negatively regulate MSC proliferation and induce senescence. Functionalization approaches, such as genetic modification or preconditioning, can modulate these pathways to enhance proliferation. Additionally, MSC-platelet hybrid cells exploit platelet-derived factors to stimulate proliferation.
mesenchymal stem cell proliferation and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| CDKN2A | Aging, senescence | Knockout in MSCs to enhance proliferation |
| TP53 | Cancer, aging | Point mutation to modulate MSC proliferation |
| AKT1 | Regenerative medicine | Overexpression to boost MSC expansion |
| CTNNB1 | Wound healing | Knock-in of constitutive active mutant |
| MKI67 | Cancer, proliferation marker | Tagged knock-in for live imaging |
Aging and degenerative diseases
Decline in MSC proliferation with age contributes to impaired tissue regeneration and degenerative diseases such as osteoporosis and osteoarthritis. Senescent MSCs accumulate in tissues and secrete pro-inflammatory factors, exacerbating age-related pathologies.
Cancer
MSCs in the tumor microenvironment can promote cancer progression and therapy resistance, partly through their proliferative and secretory activities. MSC-derived exosomes are being explored as therapeutic vehicles, but their production relies on MSC expansion.
Wound healing and regenerative medicine
MSC proliferation is essential for skin wound healing and diabetic foot ulcer treatment, where MSC-derived exosomes and extracts accelerate repair. Enhancing MSC proliferation can improve the efficacy of these therapies.
Neurological disorders
MSC therapies are being investigated for Alzheimer's disease and intracerebral hemorrhage, where proliferative capacity influences therapeutic outcomes. Visualizable MSC-platelet hybrid cells with enhanced proliferation show promise for intracerebral hemorrhage treatment.
From mesenchymal stem cell proliferation-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X regulate MSC proliferation? | CRISPR knockout in primary MSCs or MSC lines |
| Does a point mutation in gene Y affect MSC proliferation? | CRISPR point mutation knock-in |
| Can overexpression of gene Z enhance MSC expansion? | Lentiviral overexpression in MSCs |
| How does gene W affect MSC proliferation in vivo? | Tagged knock-in reporter MSCs transplanted into animal models |
| What is the role of gene V in MSC senescence? | CRISPR knockout followed by proliferation assays |
| Can CRISPR screening identify novel regulators of MSC proliferation? | Genome-wide CRISPR library screening in MSCs |
How to Study the mesenchymal stem cell proliferation Process
| Method | What It Measures | Typical Application |
|---|---|---|
| EdU incorporation | DNA synthesis | Quantify MSC proliferation |
| MTT assay | Metabolic activity | Assess cell viability and proliferation |
| Flow cytometry | Cell cycle and markers | Analyze MSC proliferation and phenotype |
| RNA-seq | Transcriptome changes | Identify pathways regulating MSC proliferation |
| Proteomics | Protein expression | Discover regulators of MSC proliferation |
| Live-cell imaging | Real-time proliferation | Track MSC expansion in vitro |
| CRISPR screening | Gene function | Identify novel regulators of MSC proliferation |
Proliferation assays
MSC proliferation is commonly measured using EdU incorporation, BrdU, or MTT assays, which quantify DNA synthesis or metabolic activity. These assays are used to assess the effects of genetic modifications or treatments on MSC expansion.
Flow cytometry
Flow cytometry can analyze cell cycle distribution and expression of proliferation markers such as Ki-67 and PCNA in MSCs. It is also used to characterize MSC surface markers and purity.
Transcriptomics and proteomics
RNA sequencing and proteomics can identify global changes in gene expression during MSC proliferation and senescence. These approaches help uncover pathways regulating GO:0097168.
Imaging
Live-cell imaging of fluorescently tagged MSCs allows real-time monitoring of proliferation and migration. Visualizable MSC-platelet hybrid cells have been developed for tracking in intracerebral hemorrhage models.
How CRISPR Can Be Used to Study GO:0097168 mesenchymal stem cell proliferation
Knockout
CRISPR knockout of candidate genes in MSCs can determine whether they are required for proliferation. For example, knocking out CDKN2A may enhance MSC proliferation and delay senescence.
Point Mutation
CRISPR point mutation knock-in can model specific amino acid changes in genes such as TP53 to study their effects on MSC proliferation. This approach helps dissect the role of individual mutations in aging and cancer.
Knock-in
Knock-in of reporter genes or constitutive active alleles (e.g., CTNNB1) allows monitoring and manipulation of MSC proliferation. Tagged knock-in of MKI67 enables live tracking of proliferating MSCs.
Overexpression
CRISPR activation or lentiviral overexpression can boost the expression of pro-proliferative genes such as MYC or AKT1 to enhance MSC expansion for therapeutic applications.
How EDITGENE Supports mesenchymal stem cell proliferation Research
Researchers studying mesenchymal stem cell proliferation-related genes often need to determine whether a candidate gene is causally involved in MSC expansion, senescence, or differentiation. EDITGENE provides comprehensive CRISPR-based services to accelerate this research, from knockout to overexpression and library screening.
Contact EDITGENE today to design your custom CRISPR model for mesenchymal stem cell proliferation research.
Frequently Asked Questions About mesenchymal stem cell proliferation
What is mesenchymal stem cell proliferation?
Mesenchymal stem cell proliferation (GO:0097168) is the process by which MSCs multiply, expanding the stem cell population to provide progenitor cells for mesenchymal tissues.
What genes are involved in mesenchymal stem cell proliferation?
Key genes include CDK1, CDK2, CDK4, CCND1, TP53, CDKN2A, MYC, and AKT1, among others.
How is MSC proliferation measured?
Common methods include EdU incorporation, MTT assays, flow cytometry for Ki-67, and live-cell imaging.
Why is MSC proliferation important for therapy?
Sufficient MSC expansion is required for cell-based therapies and for producing MSC-derived exosomes for regenerative medicine.
Does aging affect MSC proliferation?
Yes, MSC proliferative capacity declines with age due to senescence, limiting regenerative potential.
Can CRISPR enhance MSC proliferation?
CRISPR knockout of negative regulators or overexpression of positive regulators can enhance MSC proliferation.
What diseases are linked to MSC proliferation?
Aging-related degenerative diseases, cancer, wound healing disorders, and neurological conditions.
How do I study MSC proliferation in the lab?
Use proliferation assays, flow cytometry, transcriptomics, and CRISPR screens.
What is the role of MSC-derived exosomes in proliferation?
MSC-derived exosomes are products of MSCs and their production depends on MSC proliferation; they are used in cancer and wound healing therapies.
What services does EDITGENE offer for MSC proliferation research?
EDITGENE provides CRISPR knockout, point mutation, knock-in, overexpression, library screening, and bioinformatics services.
Conclusion
Mesenchymal stem cell proliferation (GO:0097168) is a fundamental biological process that underpins tissue regeneration, aging, and the therapeutic efficacy of MSCs. Understanding its regulation through genes such as CDKN2A, TP53, and AKT1 offers opportunities to enhance MSC-based therapies. CRISPR technologies provide powerful tools to dissect these mechanisms and develop improved regenerative medicine strategies.
References
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- 3. Fehrer C et al.. 2005. Mesenchymal stem cell aging.. Exp Gerontol 40(12):926-30 PMID: 16125890
- 4. Deng Z et al.. 2024. Mesenchymal Stem Cell Extract Promotes Skin Wound Healing.. Int J Mol Sci 25(24) PMID: 39769505
- 5. Roszkowski S. 2024. Therapeutic potential of mesenchymal stem cell-derived exosomes for regenerative medicine applications.. Clin Exp Med 24(1):46 PMID: 38427086
- 6. Kouroupis D et al.. 2019. Mesenchymal Stem Cell Functionalization for Enhanced Therapeutic Applications.. Tissue Eng Part B Rev 25(1):55-77 PMID: 30165783
- 7. Zhao X et al.. 2021. Mesenchymal stem cell therapies for Alzheimer's disease: preclinical studies.. Metab Brain Dis 36(7):1687-1695 PMID: 34213730
- 8. Wu G et al.. 2023. Enhanced Proliferation of Visualizable Mesenchymal Stem Cell-Platelet Hybrid Cell for Versatile Intracerebral Hemorrhage Treatment.. ACS Nano 17(8):7352-7365 PMID: 37037487
