GO:0071863 regulation of cell proliferation in bone marrow: Signaling Mechanisms, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0071863 describes the biological process that modulates the frequency, rate, or extent of cell proliferation specifically within the bone marrow niche.
• Bone marrow cell proliferation is controlled by a complex interplay of soluble factors, extracellular matrix interactions, and intracellular signaling pathways, including BMP, AKT, and STAT3.
• Dysregulation of this process is central to hematological malignancies such as leukemia, as well as bone marrow failure syndromes like aplastic anemia.
• Mesenchymal stem cell-derived extracellular vesicles and lncRNAs such as FGD5-AS1 are emerging as critical regulators of bone marrow cell proliferation and apoptosis.
• Key genes involved include STAT3, ID1, AKT, USP1, and MYCN, which serve as potential therapeutic targets and research models.
• Studying GO:0071863 requires integrated approaches such as CRISPR screening, RNA-seq, and functional assays to dissect the regulatory networks in the bone marrow microenvironment.
Description
The bone marrow is a highly dynamic tissue where hematopoietic stem and progenitor cells (HSPCs) undergo tightly regulated proliferation to maintain lifelong blood production. The Gene Ontology term GO:0071863, regulation of cell proliferation in bone marrow, captures the biological processes that modulate the frequency, rate, or extent of cell division within this specialized microenvironment. This regulation is essential for normal hematopoiesis, immune cell production, and bone remodeling, and its disruption contributes to a wide range of pathologies, including leukemia, aplastic anemia, and osteonecrosis. Understanding the molecular players and signaling cascades that govern bone marrow cell proliferation is therefore a central goal in hematology and regenerative medicine. Recent studies have highlighted the role of bone marrow-derived mesenchymal stem cells (MSCs) and their secreted factors in controlling the proliferation and survival of hematopoietic cells. For example, MSC-derived extracellular vesicles can affect proliferation and apoptosis of leukemia cells in vitro, underscoring the importance of intercellular communication in the bone marrow niche. Similarly, dysregulated signaling pathways such as BMP and AKT have been implicated in myeloid leukemia and B-cell acute lymphoblastic leukemia, providing mechanistic insights into how proliferation is subverted in cancer. This article synthesizes current knowledge on GO:0071863, covering its definition, key genes, regulatory mechanisms, disease relevance, and state-of-the-art research methods including CRISPR-based models.
regulation of cell proliferation in bone marrow At A Glance
| GO ID | GO:0071863 |
|---|---|
| GO term | regulation of cell proliferation in bone marrow |
| Ontology | biological_process |
| Synonym | regulation of bone marrow cell proliferation |
| Definition | A process that modulates the frequency, rate or extent of cell proliferation in the bone marrow. |
| Major function | Controls the balance of hematopoietic cell production, stem cell maintenance, and immune cell development within the bone marrow niche. |
| Key regulators | BMP signaling, AKT pathway, STAT3, ID1, USP1, lncRNAs, and MSC-derived extracellular vesicles. |
| Associated diseases | Leukemia, aplastic anemia, osteonecrosis of the femoral head, and neuroblastoma progression. |
| Research methods | CRISPR knockout/knock-in, RNA-seq, flow cytometry, and in vitro proliferation assays. |
What Is GO:0071863?
GO:0071863, regulation of cell proliferation in bone marrow, is defined as any process that modulates the frequency, rate, or extent of cell proliferation occurring in the bone marrow. This includes both positive and negative regulation, ensuring a balance between hematopoietic stem cell self-renewal, differentiation, and the production of mature blood cells. The term encompasses signals from the bone marrow microenvironment, such as cytokines, growth factors, and extracellular matrix components, as well as intrinsic cellular programs that control cell cycle progression and survival.
Why Is regulation of cell proliferation in bone marrow Important in Cell Biology?
Regulation of cell proliferation in the bone marrow is fundamental to hematopoiesis, immune function, and bone homeostasis. When this process goes awry, it can lead to bone marrow failure, leukemia, or metastatic dissemination. Understanding the precise molecular mechanisms that control proliferation in the bone marrow niche is critical for developing targeted therapies for hematological disorders and for advancing regenerative medicine approaches such as stem cell transplantation.
• Maintains hematopoietic stem cell pool and ensures lifelong blood cell production.
• Dysregulation leads to hematological malignancies such as acute myeloid leukemia and B-cell acute lymphoblastic leukemia.
• Plays a role in bone marrow failure syndromes like acquired aplastic anemia.
• Influences the progression of solid tumors that metastasize to bone marrow, including neuroblastoma.
• Involved in bone diseases such as steroid-induced osteonecrosis of the femoral head.
• Key for immune cell regulation and response to infection.
• Provides a target for therapeutic intervention in leukemia and other cancers.
• Essential for the success of bone marrow transplantation and stem cell therapies.
• Serves as a model for studying niche-mediated control of stem cell behavior.
• Highlights the importance of intercellular communication via extracellular vesicles and lncRNAs.
What Happens During regulation of cell proliferation in bone marrow?
Signaling from the Bone Marrow Microenvironment
In simple terms: Cells in the bone marrow receive signals from their surroundings that tell them whether to divide or not.
The bone marrow microenvironment, composed of mesenchymal stem cells, osteoblasts, endothelial cells, and extracellular matrix, provides critical signals that regulate hematopoietic cell proliferation. Bone marrow-derived progenitor cells can mediate immune cell regulation, influencing the proliferative capacity of hematopoietic cells. Additionally, MSC-derived extracellular vesicles have been shown to affect proliferation and apoptosis of leukemia cells in vitro, demonstrating that vesicular communication is a key regulatory mechanism.
Intracellular Signaling Pathways
In simple terms: Inside the cell, specific molecular switches turn proliferation on or off.
Several intracellular pathways modulate cell proliferation in the bone marrow. The BMP signaling pathway is a critical regulator in the bone marrow microenvironment, and its targeting has therapeutic potential in myeloid leukemia. The AKT pathway, often activated downstream of growth factor receptors, promotes survival and proliferation; inhibition of USP1 induces apoptosis via the ID1/AKT pathway in B-cell acute lymphoblastic leukemia cells. The lncRNA FGD5-AS1 regulates bone marrow stem cell proliferation and apoptosis by affecting the miR-296-5p/STAT3 axis in steroid-induced osteonecrosis of the femoral head.
Cell Cycle Control and Apoptosis
In simple terms: The decision to divide is balanced by the decision to undergo programmed cell death.
Regulation of cell proliferation in the bone marrow involves tight coordination between cell cycle progression and apoptosis. For instance, MSC-derived extracellular vesicles can simultaneously affect proliferation and apoptosis of leukemia cells, indicating dual regulatory roles. Similarly, the FGD5-AS1/miR-296-5p/STAT3 axis modulates both proliferation and apoptosis in bone marrow stem cells. Defects in these balance mechanisms can lead to aplastic anemia, where bone marrow mesenchymal stem cells are defective.
Transcriptional and Post-Transcriptional Regulation
In simple terms: Genes can be turned on or off, and their messages can be controlled after they are made.
Transcription factors and non-coding RNAs play pivotal roles in regulating bone marrow cell proliferation. The transcription factor MYCN transcriptionally regulates coilin in bone marrow, and coilin has been identified as a potential neuroblastoma tumor progression marker. Long non-coding RNAs, such as FGD5-AS1, act as competing endogenous RNAs to modulate microRNA activity and downstream signaling, thereby influencing proliferation. These layers of regulation ensure precise control of gene expression programs required for proper bone marrow function.
Key Genes Involved in GO:0071863 regulation of cell proliferation in bone marrow
The following genes and proteins are key players in the regulation of cell proliferation in the bone marrow, as supported by published literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| STAT3 | Transcription factor mediating cytokine signaling; regulates proliferation and apoptosis | Target in osteonecrosis and leukemia; modulated by lncRNA FGD5-AS1 |
| ID1 | Inhibitor of DNA binding; downstream of BMP and AKT pathways | Involved in leukemia cell survival; target of USP1 inhibition |
| AKT | Serine/threonine kinase promoting cell survival and proliferation | Key node in B-ALL; inhibited via USP1/ID1 axis |
| USP1 | Deubiquitinase regulating DNA repair and survival | Inhibition induces apoptosis in B-ALL via ID1/AKT |
| MYCN | Transcription factor regulating gene expression | Regulates coilin in bone marrow; marker of neuroblastoma progression |
| Coilin | Nuclear protein involved in Cajal body formation | Potential neuroblastoma progression marker in bone marrow |
| FGD5-AS1 | Long non-coding RNA | Regulates bone marrow stem cell proliferation via miR-296-5p/STAT3 |
| miR-296-5p | MicroRNA | Targeted by FGD5-AS1; affects STAT3 signaling |
| BMP2/4 | Bone morphogenetic proteins | Signaling in bone marrow microenvironment of myeloid leukemia |
| BMPR1A | BMP receptor | Mediates BMP signaling in leukemia microenvironment |
| SMAD1/5/8 | BMP signaling transducers | Downstream effectors of BMP in bone marrow |
| CXCR4 | Chemokine receptor | Mediates homing and proliferation of progenitor cells |
| SDF-1 (CXCL12) | Chemokine | Regulates hematopoietic stem cell proliferation and migration |
| VEGF | Growth factor | Secreted by MSCs; affects leukemia cell proliferation |
| IL-6 | Cytokine | Activates STAT3; involved in proliferation and apoptosis |
| TGF-beta | Growth factor | Modulates proliferation in bone marrow niche |
| Notch ligands | Cell surface proteins | Regulate hematopoietic stem cell self-renewal |
| Wnt proteins | Signaling molecules | Control stem cell proliferation in bone marrow |
How Is regulation of cell proliferation in bone marrow Regulated?
The regulation of cell proliferation in the bone marrow is orchestrated by a network of signaling pathways and epigenetic modifiers. The BMP signaling pathway is a key regulator in the bone marrow microenvironment, and its targeting can alter leukemic cell proliferation. The AKT pathway, frequently activated in hematological malignancies, promotes proliferation and survival; its inhibition via USP1 knockdown leads to apoptosis in B-cell acute lymphoblastic leukemia. The lncRNA FGD5-AS1 acts as a sponge for miR-296-5p, thereby modulating STAT3 expression and affecting bone marrow stem cell proliferation and apoptosis in steroid-induced osteonecrosis. Additionally, MSC-derived extracellular vesicles can transfer regulatory molecules to leukemia cells, influencing their proliferation. These examples illustrate the multilayered regulation of this process.
regulation of cell proliferation in bone marrow and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| USP1 | B-cell acute lymphoblastic leukemia | CRISPR knockout in B-ALL cell lines; point mutation to disable catalytic activity |
| ID1 | Leukemia, BMP signaling | Knockout and overexpression in hematopoietic cell lines |
| STAT3 | Osteonecrosis, leukemia | Knock-in of constitutive active STAT3; knockout via CRISPR |
| MYCN | Neuroblastoma progression | Overexpression and knockout in neuroblastoma cell lines |
| FGD5-AS1 | Steroid-induced osteonecrosis | CRISPR interference (CRISPRi) to knockdown lncRNA; overexpression |
Leukemia and Myeloid Malignancies
Dysregulated proliferation of hematopoietic cells in the bone marrow is a hallmark of leukemia. Targeting BMP signaling in the bone marrow microenvironment has emerged as a therapeutic strategy for myeloid leukemia. In B-cell acute lymphoblastic leukemia, inhibition of USP1 induces apoptosis via the ID1/AKT pathway, highlighting the importance of this regulatory axis in leukemic cell survival. Furthermore, bone marrow-mesenchymal stem cell-derived extracellular vesicles can affect proliferation and apoptosis of leukemia cells in vitro, suggesting a role for niche-derived vesicles in disease progression.
Aplastic Anemia and Bone Marrow Failure
Acquired aplastic anemia is characterized by defective bone marrow mesenchymal stem cells, which contribute to impaired hematopoiesis. The regulation of cell proliferation in the bone marrow is disrupted in this condition, leading to hypocellular marrow and pancytopenia. Understanding the molecular defects in MSCs from aplastic anemia patients may provide insights into novel therapeutic approaches.
Osteonecrosis of the Femoral Head
Steroid-induced osteonecrosis of the femoral head involves impaired proliferation and increased apoptosis of bone marrow stem cells. The lncRNA FGD5-AS1 regulates these processes by affecting the miR-296-5p/STAT3 axis, offering a potential target for therapeutic intervention.
Neuroblastoma Progression
Coilin, a protein found in the bone marrow, has been identified as a potential marker for neuroblastoma tumor progression and is transcriptionally regulated by MYCN. This suggests that bone marrow microenvironment components may influence the progression of solid tumors that metastasize to the bone marrow.
From regulation of cell proliferation in bone marrow-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X regulate proliferation in bone marrow cells? | CRISPR knockout in primary bone marrow cells or cell lines (e.g., K562, HL-60) |
| Does a specific point mutation in gene Y alter its function in bone marrow proliferation? | CRISPR point mutation (e.g., base editing) to introduce the mutation endogenously |
| Does overexpression of gene Z promote bone marrow cell proliferation? | CRISPR knock-in of a strong promoter or lentiviral overexpression |
| How does a tagged version of protein W localize in bone marrow cells? | CRISPR knock-in of fluorescent or epitope tag |
| What is the effect of a drug on bone marrow proliferation? | CRISPR library screening to identify resistance/sensitivity genes |
| Does a lncRNA regulate bone marrow stem cell proliferation? | CRISPR knockout or CRISPRi of the lncRNA locus |
How to Study the regulation of cell proliferation in bone marrow Process
| Method | What It Measures | Typical Application |
|---|---|---|
| MTT/BrdU/CFSE | Cell proliferation and viability | Assessing effects of gene knockout or drug treatment on bone marrow cells |
| Flow cytometry | Cell cycle, apoptosis, immunophenotype | Analyzing hematopoietic stem and progenitor cell populations |
| RNA-seq | Transcriptome-wide gene expression | Identifying pathways altered by candidate regulators |
| Proteomics | Protein abundance and modifications | Uncovering signaling changes (e.g., AKT, STAT3) |
| CRISPR screening | Gene essentiality and proliferation regulators | Genome-wide discovery of bone marrow proliferation modulators |
| Immunofluorescence | Protein localization and expression | Visualizing coilin in bone marrow cells |
| Extracellular vesicle isolation | Vesicle-mediated communication | Studying MSC-derived EV effects on leukemia cells |
| Apoptosis assays (Annexin V) | Programmed cell death | Evaluating cell death in response to genetic perturbations |
Functional Proliferation Assays
In vitro proliferation assays, such as MTT, BrdU incorporation, or CFSE dilution, are commonly used to measure the effect of genetic perturbations on bone marrow cell proliferation. These assays can be applied to primary bone marrow cells or established cell lines, and are often combined with apoptosis assays (e.g., Annexin V staining) to assess overall cell viability.
CRISPR Screening and Functional Genomics
Genome-wide CRISPR knockout or activation screens enable unbiased identification of genes that regulate bone marrow cell proliferation. These screens can be performed in primary hematopoietic cells or cell lines, and are particularly powerful for discovering novel regulators in the bone marrow microenvironment.
Transcriptomic and Proteomic Profiling
RNA sequencing (RNA-seq) and proteomics can reveal global changes in gene expression and protein abundance upon modulation of candidate regulators. For example, RNA-seq has been used to identify downstream targets of the lncRNA FGD5-AS1 in bone marrow stem cells. Proteomic approaches can uncover signaling pathway alterations, such as those mediated by BMP or AKT.
Imaging and Flow Cytometry
Flow cytometry is essential for immunophenotyping and cell cycle analysis of bone marrow populations. Imaging techniques, such as immunofluorescence, can visualize the localization of proteins like coilin within bone marrow cells. These methods provide spatial and quantitative insights into proliferation and differentiation states.
How CRISPR Can Be Used to Study GO:0071863 regulation of cell proliferation in bone marrow
Knockout
CRISPR knockout is widely used to study the loss-of-function effects of genes involved in bone marrow cell proliferation. For example, knocking out USP1 in B-cell acute lymphoblastic leukemia cells induces apoptosis via the ID1/AKT pathway. Similarly, knockout of STAT3 or its upstream regulators can reveal their roles in proliferation and survival. Knockout models are essential for validating candidate genes identified in screens.
Point Mutation
CRISPR point mutation, often achieved through base editing or prime editing, allows the introduction of specific disease-associated mutations into endogenous genes. This is particularly useful for studying how missense mutations in genes like ID1 or AKT affect bone marrow cell proliferation and signaling. Point mutation models provide more physiologically relevant insights than overexpression systems.
Knock-in
CRISPR knock-in can be used to insert reporter genes, tags, or regulatory elements at specific loci. For instance, knocking in a fluorescent tag into the coilin gene can help track its expression and localization in bone marrow cells. Knock-in of a constitutive active promoter can also drive overexpression of a gene of interest to study its proliferative effects.
Overexpression
CRISPR activation (CRISPRa) or lentiviral overexpression enables gain-of-function studies. Overexpressing lncRNA FGD5-AS1, for example, can modulate miR-296-5p/STAT3 signaling and affect bone marrow stem cell proliferation. Overexpression models are valuable for identifying oncogenes or survival factors that drive aberrant proliferation in leukemia and other bone marrow disorders.
How EDITGENE Supports regulation of cell proliferation in bone marrow Research
Researchers studying regulation of cell proliferation in bone marrow-related genes often need to determine whether a candidate gene is causally involved in the process or merely a bystander. This requires precise genetic manipulation, which can be achieved through CRISPR-based knockout, point mutation, knock-in, or overexpression models. EDITGENE provides end-to-end services to generate these models and to perform functional screens, enabling rigorous investigation of bone marrow cell proliferation mechanisms.
Contact EDITGENE today to design your custom CRISPR model for regulation of cell proliferation in bone marrow research.
Frequently Asked Questions About regulation of cell proliferation in bone marrow
What is GO:0071863?
GO:0071863 is a Gene Ontology term for the biological process that modulates the frequency, rate, or extent of cell proliferation in the bone marrow. It encompasses both positive and negative regulation of cell division within the bone marrow niche.
What genes are involved in regulation of cell proliferation in bone marrow?
Key genes include STAT3, ID1, AKT, USP1, MYCN, and the lncRNA FGD5-AS1, which control proliferation and apoptosis through signaling pathways such as BMP, AKT, and STAT3.
How is cell proliferation regulated in the bone marrow?
It is regulated by a combination of microenvironmental signals (e.g., from mesenchymal stem cells and extracellular vesicles), intracellular signaling cascades (e.g., BMP, AKT, STAT3), and transcriptional/post-transcriptional mechanisms involving lncRNAs and microRNAs.
What diseases are associated with dysregulation of bone marrow cell proliferation?
Dysregulation is linked to leukemia, aplastic anemia, osteonecrosis of the femoral head, and neuroblastoma progression.
What research methods are used to study GO:0071863?
Common methods include CRISPR knockout/knock-in, RNA-seq, flow cytometry, proliferation assays (MTT, BrdU), and extracellular vesicle isolation.
How does BMP signaling regulate bone marrow cell proliferation?
BMP signaling in the bone marrow microenvironment modulates proliferation and can be targeted in myeloid leukemia; it acts through SMAD proteins to influence gene expression.
What is the role of lncRNA FGD5-AS1 in bone marrow proliferation?
FGD5-AS1 regulates bone marrow stem cell proliferation and apoptosis by sponging miR-296-5p and affecting the STAT3 axis, particularly in steroid-induced osteonecrosis.
Can CRISPR be used to study bone marrow cell proliferation?
Yes, CRISPR knockout, point mutation, knock-in, and overexpression models are powerful tools to dissect gene function in bone marrow cell proliferation and to identify therapeutic targets.
What is the role of USP1 in B-cell acute lymphoblastic leukemia?
Inhibition of USP1 induces apoptosis via the ID1/AKT pathway in B-cell acute lymphoblastic leukemia cells, highlighting its role in regulating survival and proliferation.
How do mesenchymal stem cells affect bone marrow cell proliferation?
Mesenchymal stem cells secrete extracellular vesicles and factors that can either promote or inhibit proliferation of hematopoietic cells, including leukemia cells, through paracrine signaling.
Conclusion
GO:0071863, regulation of cell proliferation in bone marrow, is a critical biological process that governs hematopoiesis, immune function, and bone homeostasis. Its dysregulation underlies a spectrum of diseases, from leukemia to aplastic anemia and osteonecrosis. Advances in CRISPR-based models and functional genomics are rapidly expanding our understanding of the molecular players involved, including STAT3, ID1, AKT, USP1, and non-coding RNAs. Continued research into this process promises to yield new therapeutic strategies for hematological disorders and to improve regenerative medicine approaches.
References
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- 3. Lefort S et al.. 2020. Targeting BMP signaling in the bone marrow microenvironment of myeloid leukemia.. Biochem Soc Trans 48(2):411-418 PMID: 32167132
- 4. Kuang X et al.. 2021. Inhibition of USP1 induces apoptosis via ID1/AKT pathway in B-cell acute lymphoblastic leukemia cells.. Int J Med Sci 18(1):245-255 PMID: 33390793
- 5. Sivanathan KN et al.. 2019. Bone Marrow-Derived Progenitor Cells Mediate Immune Cell Regulation.. Methods Mol Biol 2029:215-234 PMID: 31273745
- 6. Wu Y et al.. 2022. lncRNA FGD5-AS1 Regulates Bone Marrow Stem Cell Proliferation and Apoptosis by Affecting miR-296-5p/STAT3 Axis in Steroid-Induced Osteonecrosis of the Femoral Head.. J Healthc Eng 2022:9364467 PMID: 35190765
- 7. Yue Z et al.. 2026. Identification of coilin in bone marrow as a potential neuroblastoma tumor progression marker transcriptionally regulated by MYCN.. Cancer Biol Ther 27(1):2600709 PMID: 41423806
- 8. Zhang JL et al.. 2015. [Defectiveness of bone marrow mesenchymal stem cells in acquired aplastic anemia].. Zhongguo Dang Dai Er Ke Za Zhi 17(1):100-6 PMID: 25616306
