GO:0035878 nail development: Developmental Pathway, Genes, Functions and Research Methods
Research-grade guide for scientists and biopharma professionals
Key Takeaways
• GO:0035878 (nail development) is the biological process by which the nail unit forms, including the nail plate, nail matrix, and surrounding epithelia.
• Nail development shares conserved molecular programs with hair follicle development, including Wnt, BMP, and keratin gene regulation.
• Keratin genes such as Krt90 are directly implicated in nail growth and development, as shown by the Witch Nails (Krt90whnl) mouse mutation.
• Nail disorders including onychomycosis, nail psoriasis, and brittle nails are major clinical targets for topical and oral therapeutics [2,4,5].
• Nail cosmetics and adornment practices can affect nail health and are relevant to dermatological research [3,6,7].
• CRISPR-based knockout, point mutation, knock-in, and overexpression models enable causal testing of candidate genes in nail development [1,8].
Description
GO:0035878, nail development, is the biological process describing the formation and growth of the nail unit, a specialized skin appendage. The nail unit comprises the nail plate, nail matrix, nail bed, and surrounding epithelia, and its development requires coordinated signaling and differentiation events that are partially shared with hair follicle development. Understanding this process is important because nail abnormalities can reflect genetic, inflammatory, or infectious conditions, and because nails serve as accessible models for studying epithelial appendage biology [1,8]. Research on nail development has been advanced by animal models such as the Witch Nails (Krt90whnl) mouse, which carries a spontaneous mutation affecting nail growth and development. Clinically, nail disorders such as onychomycosis, nail psoriasis, and brittle nails drive interest in therapeutic and cosmetic interventions that may interact with developmental pathways [2,4,5]. Nail cosmetics and adornment practices are also relevant because they can influence nail health and are widely used [3,6,7].
nail development At A Glance
| GO ID | GO:0035878 |
|---|---|
| GO term | nail development |
| Ontology | biological_process |
| Synonym | none |
| Major function | Formation and growth of the nail unit, including nail plate and nail matrix differentiation |
| Related appendage | Hair follicle development shares conserved molecular programs |
| Key genetic model | Witch Nails (Krt90whnl) mouse mutation affecting nail growth and development |
| Clinical relevance | Nail disorders such as onychomycosis, nail psoriasis, and brittle nails [2,4,5] |
| Research methods | Animal models, genetic mutation analysis, and therapeutic testing [1,8] |
What Is GO:0035878?
Nail development (GO:0035878) refers to the biological process in which the nail unit is formed and grows, encompassing the differentiation of nail matrix cells, the production of the nail plate, and the coordinated development of associated epithelial structures. This process is part of the broader developmental program of skin appendages and shares molecular features with hair follicle development. The process is studied through genetic models such as the Witch Nails mouse, which demonstrates that specific keratin genes are required for normal nail growth and development.
Why Is nail development Important in Cell Biology?
Nail development is important because it provides a tractable system for understanding epithelial appendage formation and because defects in this process underlie or contribute to clinically significant nail disorders [1,8]. The nail unit is a highly specialized structure whose development involves coordinated signaling and differentiation, and studying it can reveal general principles of skin appendage biology. Clinically, nail disorders such as onychomycosis, nail psoriasis, and brittle nails affect many patients and require effective management strategies [2,4,5]. Nail cosmetics and adornment practices are widespread and can impact nail health, making nail biology relevant beyond disease [3,6,7]. Animal models like the Witch Nails mouse demonstrate that single gene mutations can disrupt nail growth and development, highlighting the genetic basis of nail biology.
• Nail development is a model for studying epithelial appendage formation shared with hair follicles.
• Mutations in keratin genes such as Krt90 cause abnormal nail growth and development in mice.
• Nail disorders including onychomycosis and nail psoriasis are common and therapeutically challenging [2,5].
• Brittle nails can be influenced by oral supplementation, indicating nutritional modulation of nail growth.
• Nail cosmetics and adornment practices are widely used and can affect nail health [3,6,7].
• Understanding nail development can inform regenerative and therapeutic strategies for nail unit repair.
• Genetic models of nail development help identify causal genes and pathways.
• Nail development research bridges dermatology, developmental biology, and genetics [1,8].
What Happens During nail development?
Initiation and patterning of the nail unit
In simple terms: The nail unit starts to form at specific sites in the embryo, guided by signals that tell cells where to build the nail.
Nail development begins with the specification of the nail field and the formation of the nail matrix, a process that shares conserved signaling programs with hair follicle development. These early patterning events establish the spatial organization of the nail unit, including the nail plate and surrounding epithelia.
Differentiation of nail matrix cells
In simple terms: Specialized cells in the nail matrix mature and produce the hard material that becomes the nail plate.
Nail matrix cells undergo differentiation to generate the nail plate, a process that requires the expression of specific keratin genes. The Witch Nails (Krt90whnl) mouse mutation demonstrates that Krt90 is essential for normal nail growth and development, as mutant mice exhibit abnormal nails.
Nail plate formation and growth
In simple terms: The nail plate is built and pushed forward as new cells are added at the base.
The nail plate is formed by the continuous proliferation and differentiation of nail matrix cells, leading to linear growth of the nail. Disruptions in this process can result in brittle nails or other nail abnormalities.
Integration with surrounding epithelia
In simple terms: The nail develops together with the skin and other tissues around it, forming a complete unit.
Nail development involves coordinated development of the nail bed, cuticle, and surrounding skin epithelia. This integration is necessary for the structural and functional integrity of the nail unit.
Molecular conservation with hair follicle development
In simple terms: Nails and hair use many of the same molecular instructions during their formation.
Nail development shares conserved molecular pathways with hair follicle development, including signaling and keratin gene regulation. This conservation allows insights from hair follicle biology to inform nail development research.
Key Genes Involved in GO:0035878 nail development
The following genes and proteins have been implicated in nail development and related processes based on published literature.
| Gene | Major Role | Research Relevance |
|---|---|---|
| Krt90 | Keratin gene required for normal nail growth and development | Witch Nails mouse mutation demonstrates causal role in nail development |
| Krt90whnl | Spontaneous mouse mutation affecting nail growth and development | Model for studying genetic nail disorders |
| Wnt pathway genes | Signaling involved in skin appendage development shared with hair follicles | Candidate pathways for nail development regulation |
| BMP pathway genes | Signaling involved in skin appendage development shared with hair follicles | Candidate pathways for nail development regulation |
| Keratin genes (general) | Structural components of nail plate and matrix | Targets for understanding nail differentiation |
| Hair follicle development genes | Shared molecular programs with nail development | Comparative studies of appendage development |
| Collagen-related genes | Potential targets of bioactive collagen peptides affecting nail growth | Nutritional modulation of nail growth |
| Nail psoriasis-associated genes | Inflammatory pathways in nail psoriasis | Therapeutic target for nail psoriasis management |
| Onychomycosis-related fungal targets | Fungal pathogens affecting nail | Topical therapeutic development |
| Nail cosmetic interaction genes | Genes affected by cosmetic practices [3,6,7] | Dermatological safety assessment [3,6,7] |
| Krt90 regulatory regions | Regulatory elements controlling Krt90 expression | CRISPR editing to dissect regulation |
| Nail matrix proliferation genes | Control of cell proliferation in nail matrix | Targets for nail growth modulation |
| Nail differentiation markers | Markers of nail matrix differentiation | Lineage and differentiation studies |
| Epithelial appendage signaling genes | Shared signaling in nail and hair development | Comparative developmental biology |
| Brittle nail syndrome genes | Genes contributing to brittle nails | Nutritional and genetic studies |
| Nail psoriasis inflammatory mediators | Cytokines involved in nail psoriasis | Anti-inflammatory therapeutic targets |
| Nail unit stem cell markers | Potential stem cells in nail matrix | Regenerative studies |
| Krt90 interacting proteins | Proteins interacting with Krt90 in nail | Proteomic and functional studies |
How Is nail development Regulated?
Nail development is regulated by conserved signaling pathways shared with hair follicle development, including Wnt and BMP signaling, as well as by keratin gene expression programs. The Witch Nails (Krt90whnl) mouse mutation shows that Krt90 function is required for normal nail growth and development, indicating that keratin genes are key regulators. Additionally, nutritional factors such as bioactive collagen peptides can influence nail growth and reduce brittle nail symptoms, suggesting systemic regulation of nail growth.
nail development and Human Disease
| Gene | Disease / Biology | Potential Experimental Model |
|---|---|---|
| Krt90 | Abnormal nail growth and development | Witch Nails mouse model |
| Keratin genes | Nail fragility and structural defects | Knockout or point mutation in keratin genes |
| Inflammatory mediators | Nail psoriasis | Mouse models of psoriasis-like nail inflammation |
| Fungal targets | Onychomycosis | In vitro fungal nail infection models |
| Collagen-related pathways | Brittle nails | Nutritional supplementation studies |
Nail psoriasis
Nail psoriasis is a chronic inflammatory condition affecting the nail unit, and its management involves topical and systemic therapies. Understanding nail development pathways may inform therapeutic strategies for nail psoriasis.
Onychomycosis and other nail infections
Onychomycosis is a fungal infection of the nail that requires effective topical or oral treatment, and pharmaceutical development for nail disorders is an active area. Nail development biology can inform drug delivery and therapeutic design.
Brittle nails and nutritional modulation
Brittle nails can be improved by oral supplementation with specific bioactive collagen peptides, demonstrating that nail growth and quality are modifiable. This links nutritional status to nail development and maintenance.
Genetic nail disorders
The Witch Nails (Krt90whnl) mouse mutation causes abnormal nail growth and development, providing a genetic model for nail disorders. Such models help identify genes and pathways that may be relevant to human nail diseases.
From nail development-Related Genes to Experimental Models
| Research Question | Suitable Model |
|---|---|
| Is Krt90 required for nail development? | Krt90 knockout mouse |
| Does a specific point mutation in Krt90 cause nail defects? | Krt90 point-mutation knock-in mouse |
| Can a candidate gene rescue nail defects? | Knock-in of wild-type gene in mutant background |
| Where is a candidate protein expressed in the nail unit? | Tagged knock-in reporter mouse |
| Does overexpression of a signaling gene alter nail growth? | Transgenic overexpression mouse |
| Can CRISPR screen identify novel nail development genes? | In vitro or in vivo CRISPR library screening |
How to Study the nail development Process
| Method | What It Measures | Typical Application |
|---|---|---|
| Mouse genetics | Inheritance and phenotype of nail mutations | Identifying causal genes in nail development |
| Histology | Tissue structure of nail unit | Studying nail matrix and plate development |
| Clinical trials | Efficacy of nail disorder treatments [2,4,5] | Testing topical and oral therapies [2,4,5] |
| Cosmetic evaluation | Effects of nail cosmetics on nail health [3,6,7] | Dermatological safety and consumer studies [3,6,7] |
| Biochemical assays | Collagen peptide effects on nail growth | Nutritional supplementation studies |
| Genetic sequencing | Mutations in candidate genes | Diagnosing genetic nail disorders |
| Immunohistochemistry | Protein expression in nail unit | Localizing candidate proteins |
| CRISPR screening | Gene function in nail development | Identifying novel regulators |
Genetic models and mutation analysis
Animal models such as the Witch Nails (Krt90whnl) mouse are used to study the genetic basis of nail development and to identify causal mutations. These models allow observation of nail phenotypes and inheritance patterns.
Histology and imaging of the nail unit
Histological and imaging techniques are used to examine the structure of the nail unit during development and in disease states. These methods reveal cellular organization and differentiation in the nail matrix and plate.
Therapeutic and cosmetic testing
Topical and oral formulations for nail disorders are tested in clinical and preclinical settings, including for onychomycosis and brittle nails [2,4]. Nail cosmetics and adornment practices are also evaluated for their effects on nail health [3,6,7].
Clinical management studies
Clinical studies assess management strategies for nail psoriasis and other nail disorders, providing evidence for treatment guidelines. These studies help link nail biology to patient outcomes.
How CRISPR Can Be Used to Study GO:0035878 nail development
Knockout
CRISPR knockout models can be used to delete candidate genes such as Krt90 to test their requirement for nail development, as demonstrated by the Witch Nails mouse mutation. Knockout studies in cell or animal models help establish causality.
Point Mutation
Point mutation knock-in models allow introduction of specific mutations, such as those found in Krt90whnl, to study their effects on nail growth and development. These models are valuable for dissecting gene function at the nucleotide level.
Knock-in
Knock-in of reporter or tagged alleles can be used to track the expression and localization of nail development genes in vivo. This approach helps identify where and when genes act during nail formation.
Overexpression
Overexpression models can test whether increased activity of a signaling pathway or gene alters nail development. Such models complement loss-of-function studies to reveal gain-of-function phenotypes.
How EDITGENE Supports nail development Research
Researchers studying nail development-related genes often need to determine whether a candidate gene is causally involved in nail formation, growth, or disease. EDITGENE provides CRISPR-based services to create knockout, point-mutation, knock-in, and overexpression models, as well as library screening and bioinformatics support, to accelerate functional studies of nail development genes.
Contact EDITGENE today to design your custom CRISPR model for nail development research.
Related Products
| Product name | Cat.No. | Species | Gene ID | |
|---|---|---|---|---|
| ITGA6 Knockout HEK293 Cell Line | EDJ-KQ813 | Human | 3655 | Details Get a Quote |
| ITGB4 Knockout HEK293 Cell Line | EDJ-KQ819 | Human | 3691 | Details Get a Quote |
| KRT84 Knockout HEK293 Cell Line | EDJ-KQ5107 | Human | 3890 | Details Get a Quote |
| RSPO4 Knockout HEK293 Cell Line | EDJ-KQ14362 | Human | 343637 | Details Get a Quote |
| ITGA6 Knockout A-549 Cell Line | EDJ-KQ19558 | Human | 3655 | Details Get a Quote |
| ITGA6 Knockout HCT 116 Cell Line | EDJ-KQ19559 | Human | 3655 | Details Get a Quote |
| ITGA6 Knockout HeLa Cell Line | EDJ-KQ19560 | Human | 3655 | Details Get a Quote |
| ITGB4 Knockout A-549 Cell Line | EDJ-KQ19571 | Human | 3691 | Details Get a Quote |
| ITGB4 Knockout HCT 116 Cell Line | EDJ-KQ19572 | Human | 3691 | Details Get a Quote |
| ITGB4 Knockout HeLa Cell Line | EDJ-KQ19573 | Human | 3691 | Details Get a Quote |
| KRT84 Knockout HeLa Cell Line | EDJ-KQ53769 | Human | 3890 | Details Get a Quote |
| RSPO4 Knockout HeLa Cell Line | EDJ-KQ59761 | Human | 343637 | Details Get a Quote |
| KRT84 Knockout A-549 Cell Line | EDJ-KQ62247 | Human | 3890 | Details Get a Quote |
| RSPO4 Knockout A-549 Cell Line | EDJ-KQ68230 | Human | 343637 | Details Get a Quote |
| KRT84 Knockout HCT 116 Cell Line | EDJ-KQ70732 | Human | 3890 | Details Get a Quote |
Displaying Records 1 To 15 Of 17 Records
Frequently Asked Questions About nail development
What is GO:0035878 nail development?
GO:0035878 is the biological process describing the formation and growth of the nail unit, including the nail plate and nail matrix, as part of skin appendage development.
What genes are involved in nail development?
Genes such as Krt90 are involved, as shown by the Witch Nails mouse mutation affecting nail growth and development. Other genes shared with hair follicle development also play roles.
How is nail development studied?
Nail development is studied using animal models like the Witch Nails mouse, histological methods, and genetic mutation analysis [1,8].
What diseases are related to nail development?
Nail disorders such as onychomycosis, nail psoriasis, and brittle nails are related to nail biology and development [2,4,5].
Can CRISPR be used to study nail development?
Yes, CRISPR knockout, point mutation, knock-in, and overexpression models can be used to test candidate genes in nail development [1,8].
What is the Witch Nails mouse?
The Witch Nails (Krt90whnl) mouse is a spontaneous mutant that exhibits abnormal nail growth and development due to a Krt90 mutation.
How do collagen peptides affect nail growth?
Oral supplementation with specific bioactive collagen peptides has been shown to improve nail growth and reduce brittle nail symptoms.
What is the role of keratin genes in nails?
Keratin genes such as Krt90 are required for normal nail growth and development, and mutations can cause nail abnormalities.
Are nail cosmetics relevant to nail development research?
Nail cosmetics and adornment practices can affect nail health and are relevant to dermatological research [3,6,7].
What research methods are used for nail disorders?
Clinical trials, topical and oral therapeutic testing, and cosmetic evaluations are used for nail disorders such as onychomycosis and nail psoriasis [2,5].
Conclusion
GO:0035878 nail development is a specialized biological process that shares conserved molecular programs with hair follicle development and is essential for the formation of the nail unit. Genetic studies, particularly the Witch Nails (Krt90whnl) mouse, have identified Krt90 as a critical gene for normal nail growth and development. Clinically, nail development research informs the management of onychomycosis, nail psoriasis, and brittle nails, and interacts with cosmetic practices [2,4,5,3,6,7]. CRISPR-based models offer powerful tools to dissect the genetic basis of nail development and to identify new therapeutic targets [1,8].
References
- 1. Lee SH et al.. 2024. The development of hair follicles and nail.. Dev Biol 513:3-11 PMID: 38759942
- 2. Elsayed MM. 2015. Development of topical therapeutics for management of onychomycosis and other nail disorders: a pharmaceutical perspective.. J Control Release 199:132-44 PMID: 25481439
- 3. Draelos ZD. 2021. Nail Cosmetics and Adornment.. Dermatol Clin 39(2):351-359 PMID: 33745645
- 4. Hexsel D et al.. 2017. Oral supplementation with specific bioactive collagen peptides improves nail growth and reduces symptoms of brittle nails.. J Cosmet Dermatol 16(4):520-526 PMID: 28786550
- 5. Thomas L et al.. 2021. Management of nail psoriasis.. Clin Exp Dermatol 46(1):3-8 PMID: 32741010
- 6. Dinani N et al.. 2019. Nail cosmetics: a dermatological perspective.. Clin Exp Dermatol 44(6):599-605 PMID: 30793352
- 7. Madnani NA et al.. 2012. Nail cosmetics.. Indian J Dermatol Venereol Leprol 78(3):309-17 PMID: 22565430
- 8. Sundberg JP et al.. 2022. Witch Nails (Krt90whnl): A spontaneous mouse mutation affecting nail growth and development.. PLoS One 17(11):e0277284 PMID: 36374931
