GO:0048370 lateral mesoderm formation: Embryonic Process, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0048370 lateral mesoderm formation describes the initial specification and physical emergence of the lateral plate mesoderm from unspecified mesodermal precursors during gastrulation.
• The lateral plate mesoderm is a key embryonic source of the circulatory system, body wall, limb skeleton, and urogenital tissues, making its formation central to vertebrate organogenesis.
• Signals from adjacent tissues, including the ectoderm and extraembryonic structures, pattern the lateral plate mesoderm into somatic and splanchnic layers that later form coelomic cavities.
• Defects in lateral mesoderm formation are linked to congenital heart defects, kidney malformations, and body wall closure disorders, underscoring its clinical relevance.
• Research on this process relies on model organisms such as zebrafish, Xenopus, chick, and mouse, combined with lineage tracing, live imaging, and transcriptomics.
• CRISPR-based knockout, knock-in, and overexpression models enable causal testing of genes implicated in lateral mesoderm formation and associated diseases.
Description
Lateral mesoderm formation (GO:0048370) is the embryonic process that gives rise to the lateral plate mesoderm, a bilateral sheet of mesodermal cells that arises during gastrulation and subsequently contributes to a wide range of organs and tissues. This process is distinct from the formation of other mesodermal derivatives such as the paraxial mesoderm, which gives rise to somites, and the intermediate mesoderm, which forms the urogenital system. Understanding how the lateral plate mesoderm is specified and physically formed is essential for developmental biologists because it serves as a paradigm for how positional information is translated into distinct tissue lineages. The lateral plate mesoderm is perhaps best known for its role in forming the circulatory system, including the heart, blood vessels, and blood cells, as well as the body wall, limb skeleton, and components of the urogenital system. In recent years, studies have begun to uncover the metabolic and signaling requirements for lateral mesoderm formation, revealing that glucose metabolism and tissue interactions with the ectoderm and pericardium are critical for proper patterning. Consequently, GO:0048370 is a focal point for researchers studying congenital anomalies, regenerative medicine, and the evolutionary origins of vertebrate body plans.
lateral mesoderm formation At A Glance
| GO ID | GO:0048370 |
|---|---|
| GO term | lateral mesoderm formation |
| Ontology | biological_process |
| Synonym | lateral plate mesoderm biosynthesis; lateral plate mesoderm formation |
| Major function | Specification and initial formation of the lateral plate mesoderm from unspecified mesodermal precursors |
| Related process | Gastrulation, mesoderm patterning, coelom formation |
| Key tissues derived | Circulatory system, body wall, limb skeleton, urogenital tissues |
| Model organisms | Zebrafish, Xenopus, chick, mouse |
What Is GO:0048370?
According to the Gene Ontology, GO:0048370 lateral mesoderm formation is defined as the process that gives rise to the lateral mesoderm, pertaining to the initial formation of the structure from unspecified parts. In other words, it encompasses the cellular and molecular events that specify a subset of mesodermal cells to become the lateral plate mesoderm and organize them into a coherent tissue layer. This term is a biological process and is synonymous with lateral plate mesoderm biosynthesis and lateral plate mesoderm formation.
Why Is lateral mesoderm formation Important in Cell Biology?
Lateral mesoderm formation is a foundational event in vertebrate embryogenesis because the lateral plate mesoderm gives rise to the cardiovascular system, the body wall, and parts of the limbs and urogenital tract. Disruptions in this process can lead to severe congenital defects, including heart malformations, kidney agenesis, and body wall closure defects. Moreover, understanding how lateral mesoderm forms provides insights into the general principles of tissue specification, morphogenesis, and the interplay between metabolism and development. As such, GO:0048370 is of broad interest to developmental biologists, clinical geneticists, and regenerative medicine researchers.
• The lateral plate mesoderm is the primary source of the circulatory system, including the heart, blood vessels, and blood cells.
• It contributes to the body wall, limb skeleton, and urogenital system, making its formation essential for overall body plan.
• Defects in lateral mesoderm formation are associated with congenital heart defects and kidney malformations.
• The process is a model for studying how metabolic cues, such as glucose utilization, influence cell fate decisions during gastrulation.
• Interactions with adjacent tissues, such as the ectoderm and pericardium, are critical for patterning the lateral plate mesoderm.
• Research on lateral mesoderm formation informs regenerative strategies for cardiovascular and urogenital repair.
• Comparative studies across vertebrates reveal conserved and divergent mechanisms of mesoderm formation.
• Understanding this process helps explain the evolutionary origins of the vertebrate body plan.
• It provides a context for interpreting birth defects and developing diagnostic markers.
• CRISPR-based models enable functional dissection of genes involved in lateral mesoderm formation.
What Happens During lateral mesoderm formation?
Specification of lateral mesoderm progenitors
In simple terms: Certain cells in the early embryo are told to become lateral mesoderm.
During gastrulation, mesodermal cells are specified into distinct subtypes along the mediolateral axis. The lateral plate mesoderm arises from the lateral-most region of the mesoderm, and its specification depends on a combination of signaling gradients, including BMP, Wnt, and FGF pathways. In zebrafish, for example, lateral mesoderm progenitors are positioned at the lateral margin of the blastula and receive signals that instruct them to adopt a lateral plate fate. Recent studies have shown that selective utilization of glucose metabolism guides mammalian gastrulation, influencing the specification of mesodermal lineages including the lateral plate mesoderm.
Epithelial-to-mesenchymal transition and migration
In simple terms: Cells change shape and move to form a new layer.
Once specified, lateral mesoderm progenitors undergo an epithelial-to-mesenchymal transition (EMT) and migrate to form a distinct layer between the ectoderm and endoderm. This migration is guided by chemotactic cues and cell-cell adhesion changes. In avian embryos, the lateral plate mesoderm splits into somatic and splanchnic layers, a process that requires interactions with the overlying ectoderm. The formation of the coelomic cavity is a direct consequence of this splitting, and the binary decision of the lateral plate mesoderm is controlled by signals from the ectoderm.
Patterning into somatic and splanchnic layers
In simple terms: The lateral mesoderm splits into two layers that will form different body parts.
The lateral plate mesoderm subsequently divides into two layers: the somatic (parietal) layer, which associates with the ectoderm and forms the body wall, and the splanchnic (visceral) layer, which associates with the endoderm and forms the heart and gut musculature. This patterning is influenced by signals from adjacent tissues, including the ectoderm and the newly forming pericardium. The pericardium forms as a distinct structure during heart formation and may play a role in patterning the underlying lateral mesoderm.
Contribution to organ formation
In simple terms: The lateral mesoderm gives rise to many organs, including the heart and kidneys.
The lateral plate mesoderm is a major contributor to the circulatory system, including the heart tube, blood vessels, and blood cells. It also contributes to the urogenital system, particularly the kidney, as reviewed by Davidson et al.. Heart development before beating involves the assembly of the linear heart tube from lateral mesoderm-derived cells, a process that is critical for subsequent looping and chamber formation. Thus, lateral mesoderm formation is a prerequisite for the development of multiple organ systems.
Metabolic regulation of lateral mesoderm formation
In simple terms: How cells use energy can affect how they form the lateral mesoderm.
Emerging evidence indicates that metabolic pathways, particularly glucose metabolism, play a role in guiding gastrulation and mesoderm formation. Cao et al. demonstrated that selective utilization of glucose metabolism guides mammalian gastrulation, affecting the specification of mesodermal lineages. This suggests that metabolic cues are integrated with developmental signaling to ensure proper lateral mesoderm formation.
Key Genes Involved in GO:0048370 lateral mesoderm formation
The following genes and proteins have been implicated in lateral mesoderm formation and its downstream processes, based on published literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| BMP4 | Signaling molecule that patterns lateral mesoderm | Studied for its role in mesoderm specification and cardiovascular development |
| WNT3A | Secreted signal that influences mesoderm patterning | Implicated in gastrulation and lateral mesoderm formation |
| FGF8 | Growth factor that guides mesoderm migration | Used in studies of mesoderm induction and patterning |
| TBX5 | Transcription factor essential for heart and limb development | Mutations cause Holt-Oram syndrome; studied in lateral mesoderm derivatives |
| HAND2 | Transcription factor required for heart and limb formation | Knockout models show defects in lateral mesoderm-derived tissues |
| NKX2-5 | Homeobox transcription factor critical for heart development | Key marker of cardiac progenitors from lateral mesoderm |
| GATA4 | Transcription factor involved in heart and gut development | Regulates genes in lateral mesoderm derivatives |
| MESP1 | Transcription factor that marks cardiac mesoderm | Studied for its role in specifying cardiac progenitors from lateral mesoderm |
| PDGFRA | Receptor tyrosine kinase that patterns lateral mesoderm | Used as a marker for lateral plate mesoderm in several species |
| FOXF1 | Transcription factor required for lung and gut development | Expressed in splanchnic mesoderm; knockout leads to defects |
| WT1 | Transcription factor important for kidney development | Expressed in intermediate mesoderm and lateral mesoderm derivatives |
| SIX2 | Transcription factor in kidney progenitor cells | Studied in the context of urogenital development from lateral mesoderm |
| OSR1 | Zinc finger transcription factor in intermediate mesoderm | Involved in coelom formation and kidney development |
| LHX1 | Lim homeodomain transcription factor | Required for kidney and reproductive tract development |
| PAX2 | Paired box transcription factor | Essential for kidney development; mutations cause renal anomalies |
| SALL1 | Transcription factor in kidney and limb development | Mutations cause Townes-Brocks syndrome |
| GLI3 | Transcription factor in Hedgehog signaling | Regulates patterning of lateral mesoderm derivatives |
How Is lateral mesoderm formation Regulated?
The formation of the lateral mesoderm is regulated by a complex interplay of signaling pathways, including BMP, Wnt, FGF, and retinoic acid signaling. These pathways act in a concentration-dependent manner to specify lateral mesoderm progenitors and pattern them into somatic and splanchnic layers. Additionally, metabolic cues such as glucose utilization have been shown to influence gastrulation and mesoderm formation. Tissue interactions, particularly with the ectoderm and pericardium, provide spatial cues that control the binary decision of the lateral plate mesoderm to split into two layers. The process is also subject to transcriptional regulation by a network of transcription factors, including Tbx5, Hand2, and Gata4, which are essential for the development of lateral mesoderm-derived organs.
lateral mesoderm formation and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| TBX5 | Holt-Oram syndrome (heart and limb defects) | Knockout mouse, patient-derived iPSCs |
| NKX2-5 | Congenital heart disease, conduction defects | Knock-in mouse models, zebrafish |
| WT1 | Wilms tumor, nephrotic syndrome | Conditional knockout mouse, organoids |
| PAX2 | Renal coloboma syndrome | Knockout mouse, Xenopus |
| SALL1 | Townes-Brocks syndrome | Knock-in mouse, patient iPSCs |
Congenital heart defects
The lateral plate mesoderm is the source of the heart and great vessels, and disruptions in its formation can lead to congenital heart defects. Mutations in genes such as TBX5, NKX2-5, and GATA4, which are expressed in lateral mesoderm derivatives, are associated with cardiac malformations. Heart development before beating involves the assembly of the heart tube from lateral mesoderm cells, and errors in this process can result in structural heart disease.
Kidney and urogenital malformations
The lateral plate mesoderm contributes to the urogenital system, including the kidney. Defects in lateral mesoderm formation or in the subsequent specification of kidney progenitors can lead to renal agenesis or dysplasia. Genes such as WT1, PAX2, SIX2, and SALL1 are critical for kidney development, and their mutations cause human syndromes with renal anomalies.
Body wall closure defects
The somatic layer of the lateral plate mesoderm forms the body wall, and failure of proper lateral mesoderm formation can result in body wall closure defects such as gastroschisis or omphalocele. Although specific genes are still being identified, the process of coelom formation and ectoderm-mediated patterning is essential for body wall integrity.
Limb and skeletal anomalies
The lateral plate mesoderm also gives rise to the limb skeleton. Disruptions in lateral mesoderm formation or patterning can lead to limb malformations. TBX5 and HAND2, which are expressed in lateral mesoderm, are known to be involved in limb development, and their mutations cause limb defects in humans.
From lateral mesoderm formation-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Does gene X regulate lateral mesoderm specification? | Knockout (KO) in zebrafish or mouse |
| Does a point mutation in gene Y affect lateral mesoderm formation? | Point mutation knock-in in mouse or human iPSCs |
| How does gene Z contribute to heart tube formation? | Tagged knock-in (e.g., GFP) for live imaging in zebrafish |
| Can overexpression of gene W expand lateral mesoderm progenitors? | Overexpression in Xenopus or chick embryos |
| What is the transcriptional profile of lateral mesoderm cells? | RNA-seq of sorted cells from reporter embryos |
| How does metabolic perturbation affect lateral mesoderm formation? | CRISPR KO of metabolic genes in mouse embryos |
How to Study the lateral mesoderm formation Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Lineage tracing | Cell fate and migration | Tracking lateral mesoderm derivatives in vivo |
| Live imaging | Dynamic morphogenesis | Visualizing coelom formation and tissue splitting |
| scRNA-seq | Transcriptional heterogeneity | Identifying lateral mesoderm subpopulations |
| CRISPR KO | Gene function | Testing necessity of candidate genes |
| CRISPR knock-in | Protein localization and function | Tagging endogenous proteins for imaging |
| Metabolomics | Metabolic state | Linking glucose metabolism to mesoderm formation |
| ChIP-seq | Transcription factor binding | Mapping regulatory networks in lateral mesoderm |
Lineage tracing and live imaging
Lineage tracing using fluorescent reporters or dye labeling allows researchers to follow the fate of lateral mesoderm cells over time. Live imaging in zebrafish and chick embryos provides dynamic views of cell migration and tissue morphogenesis during lateral mesoderm formation.
Transcriptomics and single-cell RNA sequencing
RNA sequencing of lateral mesoderm cells isolated from embryos or differentiated from stem cells reveals the gene expression programs underlying specification and patterning. Single-cell RNA-seq can identify subpopulations and transitional states during lateral mesoderm formation.
Genetic perturbation with CRISPR
CRISPR-Cas9 knockout, knock-in, and overexpression in model organisms or human induced pluripotent stem cells (iPSCs) enable functional testing of candidate genes. These approaches can reveal whether a gene is necessary or sufficient for lateral mesoderm formation.
Metabolic profiling
Metabolic assays, such as glucose uptake measurements and metabolomics, can uncover the role of metabolic pathways in lateral mesoderm formation. Cao et al. used such approaches to show that glucose metabolism guides mammalian gastrulation.
How CRISPR Can Be Used to Study GO:0048370 lateral mesoderm formation
Knockout
CRISPR knockout (KO) is used to create loss-of-function mutations in genes suspected to play a role in lateral mesoderm formation. For example, KO of Tbx5 in mouse or zebrafish recapitulates aspects of Holt-Oram syndrome and reveals its requirement in lateral mesoderm-derived heart and limb tissues. KO models are essential for determining whether a gene is necessary for the process.
Point Mutation
Point mutation knock-in allows the introduction of specific disease-associated mutations into the genome. This is particularly useful for modeling human congenital heart defects or kidney anomalies caused by missense mutations in genes like NKX2-5 or PAX2. Such models can reveal how subtle changes in protein function affect lateral mesoderm formation.
Knock-in
Knock-in of reporter genes (e.g., GFP, mCherry) or epitope tags enables visualization and purification of lateral mesoderm cells. Tagged knock-in of genes like MESP1 or PDGFRA allows live imaging of progenitor cells and isolation for transcriptomic analysis.
Overexpression
Overexpression models, often achieved by CRISPR activation (CRISPRa) or transgenic insertion, can test whether a gene is sufficient to expand or reprogram lateral mesoderm progenitors. For instance, overexpression of BMP4 or WNT3A can expand lateral mesoderm in zebrafish or Xenopus.
How EDITGENE Supports lateral mesoderm formation Research
Researchers studying lateral mesoderm formation-related genes often need to determine whether a candidate gene is causally involved in the process or contributes to disease. EDITGENE provides a comprehensive suite of CRISPR-based services to accelerate this research, from knockout and point mutation models to knock-in reporters and overexpression systems, as well as library screening and bioinformatics support.
Contact EDITGENE today to design your custom CRISPR model for lateral mesoderm formation research.
Frequently Asked Questions About lateral mesoderm formation
What is lateral mesoderm formation?
Lateral mesoderm formation (GO:0048370) is the embryonic process that gives rise to the lateral plate mesoderm, a layer of mesodermal cells that contributes to the circulatory system, body wall, limbs, and urogenital organs.
What genes are involved in lateral mesoderm formation?
Key genes include BMP4, WNT3A, FGF8, TBX5, HAND2, NKX2-5, GATA4, MESP1, and PDGFRA, among others.
What does GO:0048370 mean?
GO:0048370 is the Gene Ontology identifier for lateral mesoderm formation, a biological process defined as the process that gives rise to the lateral mesoderm from unspecified parts.
How is lateral mesoderm formation studied?
Researchers use model organisms like zebrafish, Xenopus, chick, and mouse, combined with lineage tracing, live imaging, transcriptomics, and CRISPR-based genetic perturbations.
Why is lateral mesoderm formation important?
It is essential for the development of the heart, blood vessels, body wall, limbs, and kidneys, and defects can lead to congenital anomalies.
What diseases are linked to lateral mesoderm formation?
Congenital heart defects, kidney malformations, body wall closure defects, and limb anomalies have been linked to disruptions in lateral mesoderm formation.
What is the lateral plate mesoderm?
The lateral plate mesoderm is the bilateral sheet of mesoderm that forms during gastrulation and gives rise to the circulatory system, body wall, and urogenital tissues.
How does glucose metabolism affect lateral mesoderm formation?
Selective utilization of glucose metabolism guides mammalian gastrulation and influences the specification of mesodermal lineages, including the lateral plate mesoderm.
What is the role of the ectoderm in lateral mesoderm formation?
The ectoderm provides signals that control the binary decision of the lateral plate mesoderm to split into somatic and splanchnic layers during coelom formation.
Can CRISPR be used to study lateral mesoderm formation?
Yes, CRISPR knockout, knock-in, point mutation, and overexpression models enable functional testing of genes involved in lateral mesoderm formation in various model systems.
Conclusion
Lateral mesoderm formation (GO:0048370) is a critical embryonic process that establishes the lateral plate mesoderm, a tissue layer that gives rise to the cardiovascular system, body wall, limbs, and urogenital organs. Research over the past decades has identified key signaling pathways and transcription factors that control this process, and emerging studies highlight the importance of metabolic cues and tissue interactions. Dysregulation of lateral mesoderm formation is associated with congenital heart defects, kidney malformations, and other birth defects, making it a clinically relevant area of study. Advances in CRISPR-based genome editing and high-throughput screening now allow researchers to dissect the genetic and molecular mechanisms of lateral mesoderm formation with unprecedented precision, paving the way for new insights into development and disease.
References
- 1. Prummel KD et al.. 2020. The lateral plate mesoderm.. Development 147(12) PMID: 32561665
- 2. Pourquié O. 2001. Vertebrate somitogenesis.. Annu Rev Cell Dev Biol 17:311-50 PMID: 11687492
- 3. Gossler A et al.. 1998. Somitogenesis.. Curr Top Dev Biol 38:225-87 PMID: 9399080
- 4. Davidson AJ et al.. 2019. Turning mesoderm into kidney.. Semin Cell Dev Biol 91:86-93 PMID: 30172050
- 5. Cao D et al.. 2024. Selective utilization of glucose metabolism guides mammalian gastrulation.. Nature 634(8035):919-928 PMID: 39415005
- 6. Funayama N et al.. 1999. Coelom formation: binary decision of the lateral plate mesoderm is controlled by the ectoderm.. Development 126(18):4129-38 PMID: 10457021
- 7. Nakajima Y et al.. 2009. Heart development before beating.. Anat Sci Int 84(3):67-76 PMID: 19259768
- 8. Moran HR et al.. 2025. The pericardium forms as a distinct structure during heart formation.. Nat Commun 16(1):8566 PMID: 41022776
