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Huang Y, Ye Q, Wang J, Zhu K, Yang H, Jiang X, Shen M. Recent progress in the identification and in vitro culture of skin organoids. Regen Ther 2025; 29:341-351. [PMID: 40242086 PMCID: PMC12000699 DOI: 10.1016/j.reth.2025.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2024] [Revised: 11/13/2024] [Accepted: 01/04/2025] [Indexed: 04/18/2025] Open
Abstract
An organoid is a cell-based structure that shows organ-specific properties and shares a similar spatial organization as the corresponding organ. Organoids possess powerful capability to reproduce the key functions of the associated organ structures, and their similarity to the organs makes them physiologically relevant systems. The primary challenge associated with the development of skin organoids is the complexity of the human skin architecture, which encompasses the epidermis and the dermis as well as accessory structures, including hair follicles, sweat glands, and sebaceous glands, that perform various functions such as thermoregulation. The ultimate objectives of developing skin organoids are to regenerate the complete skin structure in vitro and reconstruct the skin in vivo. Consequently, safety, reliability, and the fidelity of the tissue interfaces are key considerations in this process. For this purpose, the present article reviews the most recent advances in this field, focusing on the cell sources, culture methods, culture conditions, and biomarkers for identifying the structure and function of skin organoids developed in vitro or in vivo. The subsequent sections summarize the recent applications of skin organoids in related disease diagnosis and treatments, and discuss the future prospects of these organoids in terms of clinical applications. This review of skin organoids can provide an important foundation for studies on human skin development, disease modeling, and reconstructive surgery, with broad utility for promising future opportunities in both biomedical research and clinical practice.
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Affiliation(s)
- Yanan Huang
- Shanghai Corps Hospital of Chinese People's Armed Police, China
| | - Qing Ye
- Shanghai Corps Hospital of Chinese People's Armed Police, China
| | | | - Kaimin Zhu
- Shanghai Corps Hospital of Chinese People's Armed Police, China
| | - Haojie Yang
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, China
| | - Xiaoping Jiang
- Shanghai Corps Hospital of Chinese People's Armed Police, China
| | - Meihua Shen
- Shanghai Corps Hospital of Chinese People's Armed Police, China
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Pawar R, Sankapall A, Samal M, Sadaphal V, Mohiudin S, Sangale M. Recent developments in 3D printing pharmaceutical, bioprinting and implant for tissue engineering formulations. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2025:1-48. [PMID: 40402634 DOI: 10.1080/09205063.2025.2505350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2024] [Accepted: 05/02/2025] [Indexed: 05/24/2025]
Abstract
This review article explores how 3D printing has the diversity in the drug development and the delivery of personalized medicine. The paradigm shift is from conventional methods to tailormade dosages and exploring the intricate interplay of drug selection, polymer compatibility alongwith technological advancements within the pharmaceutical arena. 3D printing is positioned as a crucial tool for catering to the specific requirements of patient-focused fields like pediatrics and geriatrics, ranging from addressing individual needs to improving dosage precision. By harnessing genetic profiles, physiological nuances, and disease conditions, this technology enables the creation of bespoke medications with unique drug loading and release profiles. In developing the newer implants the 3D printing has to be developed alongwith consideration of biological aspects as well as technical aspects. It has to be aligned with multifunctional aspects to cater one optimized product. Furthermore, this paper elucidates the regulatory considerations and industrial implications surrounding 3D printing in pharmaceuticals. Emphasizing compliance with current Good Manufacturing Practices (CGMP) and its potential for streamlined production in regulated markets, the paper underscores the transformative power of 3D printing in reshaping clinical practice and optimizing patient outcomes.
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Affiliation(s)
- Ranjitsinh Pawar
- Department of Pharmaceutics, Poona College of Pharmacy, Bharati Vidyapeeth (Deemed to be University), Pune, Maharashtra, India
- Department of Pharmaceutics, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research Pimpri, Pune, Maharashtra, India
| | - Ankeeta Sankapall
- Department of Pharmaceutics, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research Pimpri, Pune, Maharashtra, India
| | - Mayur Samal
- Department of Pharmaceutics, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research Pimpri, Pune, Maharashtra, India
| | - Vaishnavi Sadaphal
- Department of Pharmaceutics, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research Pimpri, Pune, Maharashtra, India
| | - Sabeeha Mohiudin
- Department of Pharmaceutics, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research Pimpri, Pune, Maharashtra, India
| | - Mangesh Sangale
- Department of Pharmaceutics, Dr. D. Y. Patil Institute of Pharmaceutical Sciences and Research Pimpri, Pune, Maharashtra, India
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Gherardini J, Rouillé T, Stone RC, Fehrholz M, Funk W, Rodríguez-Feliz J, Bauman AJ, Bíró T, Chéret J, Paus R. Human scalp hair follicles can 'taste': chemosensory signalling via the bitter taste receptor TAS2R4 inhibits hair growth ex vivo. Br J Dermatol 2025; 192:1083-1095. [PMID: 40097020 DOI: 10.1093/bjd/ljaf060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2024] [Revised: 02/14/2025] [Accepted: 02/14/2025] [Indexed: 03/19/2025]
Abstract
BACKGROUND Taste receptors (TRs) exert many 'nongustatory' chemosensory functions beyond the sensation of taste. Recently, human keratinocytes have been found to express some bitter TRs, whose physiological functions remain unknown. As it has been discovered that human scalp hair follicles (HFs) use olfactory receptors to regulate their growth, we hypothesized that some bitter TRs may exert a similar function. OBJECTIVES To explore whether human scalp HFs express the bitter TR TAS2R4 and whether its stimulation with cognate agonists or its selective knockdown affects key human HF functions and, if yes, how. METHODS TAS2R4 mRNA and protein expression were assessed in situ, and organ-cultured scalp HFs were stimulated with the TAS2R4-agonistic natural sweetener rebaudioside A (Reb A) in the presence or absence of TAS2R4 small interfering RNA. Subsequently, changes in hair growth, growth factor expression and HF gene expression were assessed ex vivo. RESULTS TAS2R4 mRNA and protein were mainly expressed in the outer root sheath and matrix of human anagen VI scalp HFs. Stimulating these with Reb A ex vivo initially inhibited hair matrix keratinocyte proliferation, followed by enhanced intrafollicular production of catagen-promoting transforming growth factor (TGF)-β2. This led to TGF-β-driven premature catagen entry, which could be antagonized by TGF-β-neutralizing antibodies. Premature catagen induction was also seen with other known TAS2R4 agonists, while TAS2R4 knockdown in the -presence of Reb A promoted hair growth, documenting that the observed effects of Reb A on the HF depend on TAS2R4-mediated signalling. Gene expression profiling (RNA sequencing) revealed differential transcriptional signatures consistent with TAS2R4-mediated changes in cell cycle control and TGF-β pathway signalling. CONCLUSIONS Our study found that human scalp HFs engage in chemosensation via bitter TRs to regulate their growth, matrix keratinocyte proliferation, growth factor production and overall gene expression. Specifically, we demonstrated that a simple tastant like Reb A can promote the anagen-catagen switch of human scalp HFs and their production of TGF-β2, and modulate HF keratinocyte proliferation and intrafollicular gene transcription in a TAS2R4-dependent manner. This expands our understanding of bitter TR-mediated chemosensation in human skin and suggests a novel, drug-free strategy to inhibiting unwanted hair growth (e.g. in hirsutism and hypertrichosis) by targeting TAS2R4 (e.g. via topical Reb A).
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Affiliation(s)
- Jennifer Gherardini
- CUTANEON - Skin & Hair Innovations GmbH, Hamburg and Berlin, Germany
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Thomas Rouillé
- QIMA Life Sciences-QIMA Monasterium GmbH, Münster, Germany
| | - Rivka C Stone
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | | | - Wolfgang Funk
- Clinic for Plastic, Aesthetic and Reconstructive Surgery, Dr. Funk, Munich, Germany
| | | | | | - Tamás Bíró
- CUTANEON - Skin & Hair Innovations GmbH, Hamburg and Berlin, Germany
| | - Jérémy Chéret
- CUTANEON - Skin & Hair Innovations GmbH, Hamburg and Berlin, Germany
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Ralf Paus
- CUTANEON - Skin & Hair Innovations GmbH, Hamburg and Berlin, Germany
- Dr. Phillip Frost Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, FL, USA
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Xavier S, Roy J, Li S, Klover PJ, Thangapazham RL, Wang JA, Aduba DC, Raiciulescu S, Sperling LC, Herman IM, Darling TN. A Matrix-Derived Bioactive Peptide Enhances Epidermal Thickness and Hair Follicle Neogenesis in Grafted Dermal-Epidermal Composites. Wound Repair Regen 2025; 33:e70036. [PMID: 40387415 DOI: 10.1111/wrr.70036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2024] [Revised: 04/23/2025] [Accepted: 04/29/2025] [Indexed: 05/20/2025]
Abstract
Cutaneous wounds can be treated using skin substitutes, but they heal with scarring and absence of skin adnexal structures. We previously demonstrated hair follicle neogenesis in dermal-epidermal composites made of neonatal foreskin human keratinocytes and human dermal papilla cells grafted onto nude mice. A challenge to adapting this approach to graft large areas in humans is that dermal papilla cells lose trichogenicity when expanded in vitro. Herein, a peptide derived from a coiled-coil domain of multimerin-1, TSN6, was evaluated for its effects on graft characteristics and hair follicle formation. In a hair follicle reconstitution assay, TSN6 increased the number of hair fibres by 1.8-fold (p value < 0.05). Dermal-epidermal composites, constructed using late-passage human dermal papilla cells and incubated with TSN6 prior to grafting, retained 14 of 14 grafts for 10-12 weeks, whereas scrambled and vehicle groups kept only 9 of 12 and 13 of 16 grafts, respectively. Histological evaluation of skin grafts showed the presence of human hair follicles in 12 of 14 dermal-epidermal composites in the TSN6 group, 3 of 9 in the scrambled group and 6 of 13 in the vehicle group. The median number and interquartile range of hair follicles was 4.5 (1.8, 10.3) for the TSN6 group, 0 (0, 3.5) for the scrambled group and 0 (0, 3.3) for the vehicle group. TSN6 also increased epidermal thickness, showing a thickness of 127 ± 18 μm for the TSN6 group and 70 ± 28 μm and 94 ± 18 μm for the scrambled and vehicle groups, respectively. In summary, TSN6 increases epidermal thickness and promotes hair follicle neogenesis in a skin substitute.
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Affiliation(s)
- Sandhya Xavier
- Department of Dermatology, Uniformed Services University, Bethesda, Maryland, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, Maryland, USA
| | - Jahnabi Roy
- Department of Dermatology, Uniformed Services University, Bethesda, Maryland, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, Maryland, USA
| | - Shaowei Li
- Department of Dermatology, Uniformed Services University, Bethesda, Maryland, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, Maryland, USA
| | - Peter J Klover
- Department of Dermatology, Uniformed Services University, Bethesda, Maryland, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, Maryland, USA
| | - Rajesh L Thangapazham
- Department of Dermatology, Uniformed Services University, Bethesda, Maryland, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, Maryland, USA
| | - Ji-An Wang
- Department of Dermatology, Uniformed Services University, Bethesda, Maryland, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, Maryland, USA
| | - Donald C Aduba
- Department of Dermatology, Uniformed Services University, Bethesda, Maryland, USA
- Henry M. Jackson Foundation for the Advancement of Military Medicine Inc., Bethesda, Maryland, USA
| | - Sorana Raiciulescu
- Department of Preventive Medicine and Biostatistics, Uniformed Services University, Bethesda, Maryland, USA
| | - Leonard C Sperling
- Department of Dermatology, Uniformed Services University, Bethesda, Maryland, USA
| | - Ira M Herman
- Department of Developmental, Molecular, and Chemical Biology, Tufts University School of Medicine, Boston, Massachusetts, USA
- Center for Innovations in Wound Healing Research, Tufts University School of Medicine, Boston, Massachusetts, USA
- Department of Developmental, Molecular and Chemical Biology, Center for Innovations in Wound Healing Research, Tufts University School of Medicine, Boston, Massachusetts, USA
| | - Thomas N Darling
- Department of Dermatology, Uniformed Services University, Bethesda, Maryland, USA
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5
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Shiraishi M, Sowa Y, Sunaga A, Yamamoto K, Okazaki M. Bioengineering strategies for regeneration of skin integrity: A literature review. Regen Ther 2025; 28:153-160. [PMID: 39790492 PMCID: PMC11713503 DOI: 10.1016/j.reth.2024.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2024] [Revised: 11/21/2024] [Accepted: 12/04/2024] [Indexed: 01/12/2025] Open
Abstract
Objective The skin is a complex organ that includes various stem cell populations. Current approaches for non-healing skin defects are sometimes inadequate and many attempts have been made to regenerate skin integrity. The aim of this review is to bridge the gap between basic research and clinical application of skin integrity regeneration. Methods A literature search was carried out in PubMed using combinations of the keywords "skin integrity", "tissue-engineered skin", "bioengineered skin", and "skin regeneration". Articles published from 1968 to 2023 reporting evidence from in vivo and in vitro skin regeneration experiments were included. Results These articles showed that stem cells can be differentiated into normal skin cells, including keratinocytes, and are a significant source of skin organoids, which are useful for investigating skin biology; and that emerging direct reprogramming methods have great potential to regenerate skin from the wounded skin surface. Conclusion Recent advances in skin regeneration will facilitate further advancement of both basic and clinical research in skin biology.
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Affiliation(s)
- Makoto Shiraishi
- Department of Plastic and Reconstructive Surgery, The University of Tokyo Hospital, Tokyo, Japan
| | - Yoshihiro Sowa
- Department of Plastic Surgery, Jichi Medical University, Japan
| | - Ataru Sunaga
- Department of Plastic Surgery, Jichi Medical University, Japan
| | - Kenta Yamamoto
- Department of Immunology, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Mutsumi Okazaki
- Department of Plastic and Reconstructive Surgery, The University of Tokyo Hospital, Tokyo, Japan
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Xiao Y, Zhang Y, Deng S, Yang X, Yao X. Immune and Non-immune Interactions in the Pathogenesis of Androgenetic Alopecia. Clin Rev Allergy Immunol 2025; 68:22. [PMID: 40024940 DOI: 10.1007/s12016-025-09034-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/17/2025] [Indexed: 03/04/2025]
Abstract
Androgenetic alopecia (AGA), a leading cause of progressive hair loss, affects up to 50% of males aged 50 years, causing significant psychological burden. Current treatments, such as anti-androgen drugs and minoxidil, show heterogeneous effects, even with long-term application. Meanwhile, the large-scale adoption of other adjuvant therapies has been slow, partly due to insufficient mechanistic evidence. A major barrier to developing better treatment for AGA is the incomplete understanding of its pathogenesis. The predominant academic consensus is that AGA is caused by abnormal expression of androgens and their receptors in individuals with a genetic predisposition. Emerging evidence suggests the contributing role of factors such as immune responses, oxidative stress, and microbiome changes, which were not previously given due consideration. Immune-mediated inflammation and oxidative stress disrupt hair follicles' function and damage the perifollicular niche, while scalp dysbiosis influences local metabolism and destabilizes the local microenvironment. These interconnected mechanisms collectively contribute to AGA pathogenesis. These additional aspects enhance our current understanding and confound the conventional paradigm, bridging the gap in developing holistic solutions for AGA. In this review, we gather existing evidence to discuss various etiopathogenetic factors involved in AGA and their possible interconnections, aiming to lay the groundwork for the future identification of therapeutic targets and drug development. Additionally, we summarize the advantages and disadvantages of AGA research models, ranging from cells and tissues to animals, to provide a solid basis for more effective mechanistic studies.
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Affiliation(s)
- Yu Xiao
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, 210042, Jiangsu, China
| | - Yi Zhang
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, 210042, Jiangsu, China
| | - Shuting Deng
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, 210042, Jiangsu, China
| | - Xueyuan Yang
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, 210042, Jiangsu, China
| | - Xu Yao
- Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, 210042, Jiangsu, China.
- Department of Allergy and Rheumatology, Jiangsu Key Laboratory of Molecular Biology for Skin Diseases and STIs, Hospital for Skin Diseases, Institute of Dermatology, Chinese Academy of Medical Sciences & Peking Union Medical College, Nanjing, 210042, Jiangsu, China.
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7
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Moeckel C, Chacharidakis G, Balasis S, Queen D, Avram MR, Panagiotopoulou G. From Scalp Flaps to Follicular Units: A Historical Perspective on Hair Transplantation Techniques. Dermatol Surg 2025:00042728-990000000-01131. [PMID: 40008796 DOI: 10.1097/dss.0000000000004581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/27/2025]
Abstract
BACKGROUND Hair has long held cultural and psychosocial significance, symbolizing health, status, and identity. Hair loss impacts quality of life, self-esteem, and psychological well-being. While treatments like minoxidil and finasteride exist, they often yield limited results. Hair transplantation (HT), first demonstrated by Johann Friedrich Dieffenbach in 1822, has evolved into the most effective hair restoration method. Since its inception in 1975, Dermatologic Surgery has been a main source for groundbreaking publications from major players in the field, while also playing a pivotal role in documenting the history of HT. OBJECTIVE This mini review examines the historical evolution of HT techniques over the past 200 years, highlighting their advantages and limitations. MATERIALS AND METHODS A literature search was conducted using PubMed and Google Scholar with the term "hair transplantation techniques." Relevant sources were reviewed to extract information on technique development and historical origins. RESULTS Key pioneers such as Dieffenbach, Menahem Hodara, and Shoji Okuda laid the groundwork for modern HT. Milestones include punch grafting, follicular unit transplantation (FUT), and follicular unit extraction (FUE). FUT emphasized natural follicular grouping, while FUE introduced minimally invasive methods with faster recovery and better aesthetics. Recent advancements include robotic-assisted procedures and bioengineered follicles, reflecting a shift toward precision and patient-centered care. CONCLUSION The continuous evolution of HT techniques underscores its position as the most effective method for hair restoration, particularly in androgenetic alopecia cases.
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Affiliation(s)
- Camille Moeckel
- Department of Biochemistry and Molecular Biology, Institute for Personalized Medicine, The Pennsylvania State University College of Medicine, Hershey, Pennsylvania
| | | | - Stavros Balasis
- Department of Plastic Surgery, General University Hospital of Patras, Patras, Greece
| | - Dawn Queen
- Columbia University Irving Medical Center, Private Practice, New York, New York
| | - Marc R Avram
- Weill Cornell Medical School, Private Practice, New York, New York
| | - Gianna Panagiotopoulou
- Division of Endocrinology, Department of Internal Medicine, School of Medicine, University of Patras, Patras, Greece
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8
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Chu X, Zhou Z, Qian X, Shen H, Cheng H, Zhang J. Functional regeneration strategies of hair follicles: advances and challenges. Stem Cell Res Ther 2025; 16:77. [PMID: 39985119 PMCID: PMC11846195 DOI: 10.1186/s13287-025-04210-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2024] [Accepted: 01/29/2025] [Indexed: 02/24/2025] Open
Abstract
Hair follicles are essential appendages of human skin that function in protection, sensation, thermoregulation and social interactions. The multicellular components, particularly the dermal papilla, matrix and bulge housing stem cells, enable cyclic hair growth postnatally. However, miniaturization and loss of hair follicles can occur in the context of ageing, trauma and various alopecia-related diseases. Conventional treatments involve the redistribution of existing follicles, which may not be viable in patients lacking follicular resources. Recent progress in the comprehension of morphogenesis and the development of biomaterials has significantly advanced follicle reconstruction, incorporating organ germ assembling, stem cell induction and bioprinting techniques. Despite these advancements, fully restoring hair follicles remains challenging due to the complexities of replicating embryonic signals and sustaining growth cycles. Identifying suitable cell sources for clinical applications also presents a hurdle. Here, we retrospect the progress made in the field of hair follicle regeneration, aiming to offer an exhaustive analysis on the benefits and limitations of these methods, and to foster the development of innovative solutions.
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Affiliation(s)
- Xi Chu
- Department of Plastic and Cosmetic Surgery, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, 261 Huansha Road, Hangzhou, 310000, Zhejiang, China
| | - Zhentao Zhou
- Department of Plastic and Cosmetic Surgery, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, 261 Huansha Road, Hangzhou, 310000, Zhejiang, China
| | - Xifei Qian
- School of Medicine, Zhejiang Chinese Medical University, Hangzhou, 310000, Zhejiang, China
| | - Haiyan Shen
- Department of Plastic and Cosmetic Surgery, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, 261 Huansha Road, Hangzhou, 310000, Zhejiang, China
| | - Hanxiao Cheng
- Department of Plastic and Cosmetic Surgery, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, 261 Huansha Road, Hangzhou, 310000, Zhejiang, China
| | - Jufang Zhang
- Department of Plastic and Cosmetic Surgery, Affiliated Hangzhou First People's Hospital, School of Medicine, Westlake University, 261 Huansha Road, Hangzhou, 310000, Zhejiang, China.
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9
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Cattier B, Guignard R, Martel I, Martel C, Simard-Bisson C, Larouche D, Guiraud B, Bessou-Touya S, Germain L. Bulge-Derived Epithelial Cells Isolated from Human Hair Follicles Using Enzymatic Digestion or Explants Result in Comparable Tissue-Engineered Skin. Int J Mol Sci 2025; 26:1852. [PMID: 40076477 PMCID: PMC11899990 DOI: 10.3390/ijms26051852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2024] [Revised: 02/12/2025] [Accepted: 02/17/2025] [Indexed: 03/14/2025] Open
Abstract
Hair follicle stem cells, located in the bulge region of the outer root sheath, are multipotent epithelial stem cells capable of differentiating into epidermal, sebaceous gland, and hair shaft cells. Efficient culturing of these cells is crucial for advancements in dermatology, regenerative medicine, and skin model development. This investigation aimed to develop a protocol for isolating enriched bulge-derived epithelial cells from scalp specimens to produce tissue-engineered substitutes. The epithelium, including hair follicles, was separated from the dermis using thermolysin, followed by microdissection of the bulge region. Epithelial stem cells were isolated using enzymatic dissociation to create a single-cell suspension and compared with the direct explant culture and a benchmark method which isolates cells from the epidermis and pilosebaceous units. After 8 days of culture, the enzymatic digestion of microdissected bulges yielded 5.3 times more epithelial cells compared to explant cultures and proliferated faster than the benchmark method. Cells cultured from all methods exhibited comparable morphology and growth rates. The fully stratified epidermis of tissue-engineered skin was similar, indicating comparable differentiation potential. This enzymatic digestion method improved early-stage cell recovery and expansion while maintaining keratinocyte functionality, offering an efficient hair bulge cell-extraction technique for tissue engineering and regenerative medicine applications.
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Affiliation(s)
- Bettina Cattier
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada; (B.C.); (R.G.); (I.M.); (C.M.); (C.S.-B.); (D.L.)
- Department of Surgery, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada
- CHU de Québec-Université Laval Research Centre, Quebec City, QC G1J 5B3, Canada
| | - Rina Guignard
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada; (B.C.); (R.G.); (I.M.); (C.M.); (C.S.-B.); (D.L.)
- Department of Surgery, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada
- CHU de Québec-Université Laval Research Centre, Quebec City, QC G1J 5B3, Canada
| | - Israël Martel
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada; (B.C.); (R.G.); (I.M.); (C.M.); (C.S.-B.); (D.L.)
- Department of Surgery, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada
- CHU de Québec-Université Laval Research Centre, Quebec City, QC G1J 5B3, Canada
| | - Christian Martel
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada; (B.C.); (R.G.); (I.M.); (C.M.); (C.S.-B.); (D.L.)
- Department of Surgery, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada
- CHU de Québec-Université Laval Research Centre, Quebec City, QC G1J 5B3, Canada
| | - Carolyne Simard-Bisson
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada; (B.C.); (R.G.); (I.M.); (C.M.); (C.S.-B.); (D.L.)
- Department of Surgery, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada
- CHU de Québec-Université Laval Research Centre, Quebec City, QC G1J 5B3, Canada
| | - Danielle Larouche
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada; (B.C.); (R.G.); (I.M.); (C.M.); (C.S.-B.); (D.L.)
- Department of Surgery, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada
- CHU de Québec-Université Laval Research Centre, Quebec City, QC G1J 5B3, Canada
| | - Béatrice Guiraud
- R&D Center, Pierre Fabre Dermo-Cosmétique, 31100 Toulouse, France; (B.G.); (S.B.-T.)
| | - Sandrine Bessou-Touya
- R&D Center, Pierre Fabre Dermo-Cosmétique, 31100 Toulouse, France; (B.G.); (S.B.-T.)
| | - Lucie Germain
- Centre de Recherche en Organogénèse Expérimentale de l’Université Laval/LOEX, Quebec City, QC G1J 5B3, Canada; (B.C.); (R.G.); (I.M.); (C.M.); (C.S.-B.); (D.L.)
- Department of Surgery, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada
- CHU de Québec-Université Laval Research Centre, Quebec City, QC G1J 5B3, Canada
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10
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Derman ID, Rivera T, Garriga Cerda L, Singh YP, Saini S, Abaci HE, Ozbolat IT. Advancements in 3D skin bioprinting: processes, bioinks, applications and sensor integration. INTERNATIONAL JOURNAL OF EXTREME MANUFACTURING 2025; 7:012009. [PMID: 39569402 PMCID: PMC11574952 DOI: 10.1088/2631-7990/ad878c] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 06/23/2024] [Accepted: 10/16/2024] [Indexed: 11/22/2024]
Abstract
This comprehensive review explores the multifaceted landscape of skin bioprinting, revolutionizing dermatological research. The applications of skin bioprinting utilizing techniques like extrusion-, droplet-, laser- and light-based methods, with specialized bioinks for skin biofabrication have been critically reviewed along with the intricate aspects of bioprinting hair follicles, sweat glands, and achieving skin pigmentation. Challenges remain with the need for vascularization, safety concerns, and the integration of automated processes for effective clinical translation. The review further investigates the incorporation of biosensor technologies, emphasizing their role in monitoring and enhancing the wound healing process. While highlighting the remarkable progress in the field, critical limitations and concerns are critically examined to provide a balanced perspective. This synthesis aims to guide scientists, engineers, and healthcare providers, fostering a deeper understanding of the current state, challenges, and future directions in skin bioprinting for transformative applications in tissue engineering and regenerative medicine.
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Affiliation(s)
- I Deniz Derman
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, United States of America
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, United States of America
| | - Taino Rivera
- Biomedical Engineering Department, Penn State University, University Park, PA, United States of America
| | - Laura Garriga Cerda
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, United States of America
| | - Yogendra Pratap Singh
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, United States of America
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, United States of America
| | - Shweta Saini
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, United States of America
| | - Hasan Erbil Abaci
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY, United States of America
- Department of Biomedical Engineering, Columbia University, New York, NY, United States of America
| | - Ibrahim T Ozbolat
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, United States of America
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, United States of America
- Biomedical Engineering Department, Penn State University, University Park, PA, United States of America
- Materials Research Institute, Penn State University, University Park, PA, United States of America
- Cancer Institute, Penn State University, University Park, PA, United States of America
- Neurosurgery Department, Penn State University, University Park, PA, United States of America
- Department of Medical Oncology, Cukurova University, Adana, Turkey
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11
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Kang MS, Kwon M, Park R, Kim J, Hong SW, Kim CS, Yang WJ, Kim KS, Han DW. Harnessing the Intradermal Delivery of Hair Follicle Dermal Papilla Cell Spheroids for Hair Follicle Regeneration in Nude Mice. Biomater Res 2025; 29:0129. [PMID: 39807307 PMCID: PMC11725629 DOI: 10.34133/bmr.0129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2024] [Revised: 12/09/2024] [Accepted: 12/14/2024] [Indexed: 01/16/2025] Open
Affiliation(s)
- Moon Sung Kang
- Research Institute of Mechanical Technology,
Pusan National University, Busan 46241, Republic of Korea
| | - Mina Kwon
- School of Chemical Engineering,
Pusan National University, Busan 46241, Republic of Korea
| | - Rowoon Park
- Department of Cogno-Mechatronics Engineering,
Pusan National University, Busan 46241, Republic of Korea
| | - Jaeheung Kim
- Department of Cogno-Mechatronics Engineering,
Pusan National University, Busan 46241, Republic of Korea
| | - Suck Won Hong
- Department of Cogno-Mechatronics Engineering,
Pusan National University, Busan 46241, Republic of Korea
- Engineering Research Center for Color-Modulated Extra-Sensory Perception Technology,
Pusan National University, Busan 46241, Republic of Korea
| | - Chang-Seok Kim
- Department of Cogno-Mechatronics Engineering,
Pusan National University, Busan 46241, Republic of Korea
- Engineering Research Center for Color-Modulated Extra-Sensory Perception Technology,
Pusan National University, Busan 46241, Republic of Korea
| | | | - Ki Su Kim
- School of Chemical Engineering,
Pusan National University, Busan 46241, Republic of Korea
- Institute of Advanced Organic Materials and Department of Organic Materials Science and Engineering,
Pusan National University, Busan 46241, Republic of Korea
| | - Dong-Wook Han
- Department of Cogno-Mechatronics Engineering,
Pusan National University, Busan 46241, Republic of Korea
- Institute of Nano-Bio Convergence,
Pusan National University, Busan 46241, Republic of Korea
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12
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Wang Z, Zhao F, Lang H, Ren H, Zhang Q, Huang X, He C, Xu C, Tan C, Ma J, Duan S, Wang Z. Organoids in skin wound healing. BURNS & TRAUMA 2025; 13:tkae077. [PMID: 39759541 PMCID: PMC11697111 DOI: 10.1093/burnst/tkae077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2024] [Revised: 10/30/2024] [Accepted: 11/11/2024] [Indexed: 01/07/2025]
Abstract
Stem cells (SCs) can self-replicate and differentiate into multiple lineages. Organoids, 3D cultures derived from SCs, can replicate the spatial structure and physiological characteristics of organs in vitro. Skin organoids can effectively simulate the physiological structure and function of skin tissue, reliably restoring the natural skin ecology in various in vitro environments. Skin organoids have been employed extensively in skin development and pathology research, offering valuable insights for drug screening. Moreover, they play crucial roles in skin regeneration and tissue repair. This in-depth review explores the construction and applications of skin organoids in wound healing, with a focus on their construction process, including skin appendage integration, and significant advancements in wound-healing research.
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Affiliation(s)
- Zitong Wang
- Department of Pathology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Shenyang, Liaoning 110004, China
| | - Feng Zhao
- Department of Stem Cells and Regenerative Medicine, Shenyang Key Laboratory of Stem Cell and Regenerative Medicine, China Medical University, No. 77 Puhe Road, Shenyang, Liaoning 110013, China
| | - Hongxin Lang
- Department of Stem Cells and Regenerative Medicine, Shenyang Key Laboratory of Stem Cell and Regenerative Medicine, China Medical University, No. 77 Puhe Road, Shenyang, Liaoning 110013, China
| | - Haiyue Ren
- Department of Pathology, Wuhan Hospital of Traditional Chinese and Western Medicine (Wuhan No. 1 Hospital), No. 215 Zhongshan Street, Wuhan, Hubei 430022, China
| | - Qiqi Zhang
- Department of Pathology, Chengdu Third People's Hospital, No. 82 Qinglong Street, Chengdu, Sichuan 610031, China
| | - Xing Huang
- Department of Anaesthesiology, the First Affiliated Hospital of Xi'an Jiaotong University, No. 277 Yantaxi Road, Xi'an, Shanxi 710061, China
| | - Cai He
- Department of Pathology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Shenyang, Liaoning 110004, China
| | - Chengcheng Xu
- Department of Pathology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Shenyang, Liaoning 110004, China
| | - Chiyu Tan
- Department of Pathology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Shenyang, Liaoning 110004, China
| | - Jiajie Ma
- Department of Pathology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Shenyang, Liaoning 110004, China
| | - Shu Duan
- Department of Pathology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Shenyang, Liaoning 110004, China
| | - Zhe Wang
- Department of Pathology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, Shenyang, Liaoning 110004, China
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13
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Derman ID, Moses JC, Rivera T, Ozbolat IT. Understanding the cellular dynamics, engineering perspectives and translation prospects in bioprinting epithelial tissues. Bioact Mater 2025; 43:195-224. [PMID: 39386221 PMCID: PMC11462153 DOI: 10.1016/j.bioactmat.2024.09.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Revised: 09/04/2024] [Accepted: 09/18/2024] [Indexed: 10/12/2024] Open
Abstract
The epithelium is one of the important tissues in the body as it plays a crucial barrier role serving as a gateway into and out of the body. Most organs in the body contain an epithelial tissue component, where the tightly connected, organ-specific epithelial cells organize into cysts, invaginations, or tubules, thereby performing distinct to endocrine or exocrine secretory functions. Despite the significance of epithelium, engineering functional epithelium in vitro has remained a challenge due to it is special architecture, heterotypic composition of epithelial tissues, and most importantly, difficulty in attaining the apico-basal and planar polarity of epithelial cells. Bioprinting has brought a paradigm shift in fabricating such apico-basal polarized tissues. In this review, we provide an overview of epithelial tissues and provide insights on recapitulating their cellular arrangement and polarization to achieve epithelial function. We describe the different bioprinting techniques that have been successful in engineering polarized epithelium, which can serve as in vitro models for understanding homeostasis and studying diseased conditions. We also discuss the different attempts that have been investigated to study these 3D bioprinted engineered epithelium for preclinical use. Finally, we highlight the challenges and the opportunities that need to be addressed for translation of 3D bioprinted epithelial tissues towards paving way for personalized healthcare in the future.
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Affiliation(s)
- Irem Deniz Derman
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA
| | - Joseph Christakiran Moses
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA
| | - Taino Rivera
- Biomedical Engineering Department, Penn State University, University Park, PA, 16802, USA
| | - Ibrahim T. Ozbolat
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA
- Biomedical Engineering Department, Penn State University, University Park, PA, 16802, USA
- Materials Research Institute, Penn State University, University Park, PA, 16802, USA
- Cancer Institute, Penn State University, University Park, PA, 16802, USA
- Neurosurgery Department, Penn State University, University Park, PA, 16802, USA
- Department of Medical Oncology, Cukurova University, Adana, 01330, Turkey
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14
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Xia W, Wang C, Guo B, Tang Z, Ye X, Dang Y. Gpr54 deletion accelerates hair cycle and hair regeneration. EMBO Rep 2025; 26:200-217. [PMID: 39587329 PMCID: PMC11724127 DOI: 10.1038/s44319-024-00327-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 11/03/2024] [Accepted: 11/13/2024] [Indexed: 11/27/2024] Open
Abstract
GPR54, or KiSS-1R (Kisspeptin receptor), is key in puberty initiation and tumor metastasis prevention, but its role on hair follicles remains unclear. Our study shows that Gpr54 knockout (KO) accelerates hair cycle, synchronized hair regeneration and transplanted hair growth in mice. In Gpr54 KO mice, DPC (dermal papilla cell) activity is enhanced, with elevated expression of Wnts, VEGF, and IGF-1, which stimulate HFSCs. Gpr54 deletion also raises the number of CD34+ and Lgr5+ HFSCs. The Gpr54 inhibitor, kisspeptin234, promotes hair shaft growth in cultured mouse hair follicles and boosts synchronized hair regeneration in vivo. Mechanistically, Gpr54 deletion suppresses NFATC3 expression in DPCs and HFSCs, and decreases levels of SFRP1, a Wnt inhibitor. It also activates the Wnt/β-catenin pathway, promoting β-catenin nuclear localization and upregulating target genes such as Lef1 and ALP. Our findings suggest that Gpr54 deletion may accelerate the hair cycle and promote hair regeneration in mice by regulating the NAFTc3-SFRP1-Wnt signaling pathway. These findings suggest that Gpr54 could be a possible target for future hair loss treatments.
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Affiliation(s)
- Weili Xia
- Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, China
- Shandong Mental Health Center, Shandong University, Jinan, Shandong, 250014, China
| | - Caibing Wang
- Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Biao Guo
- Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Zexin Tang
- Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, China
| | - Xiyun Ye
- Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, China.
| | - Yongyan Dang
- Institute of Biomedical Sciences and School of Life Sciences, East China Normal University, Shanghai, 200241, China.
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15
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Hamida OB, Kim MK, Sung YK, Kim MK, Kwack MH. Hair Regeneration Methods Using Cells Derived from Human Hair Follicles and Challenges to Overcome. Cells 2024; 14:7. [PMID: 39791708 PMCID: PMC11720663 DOI: 10.3390/cells14010007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2024] [Revised: 12/12/2024] [Accepted: 12/23/2024] [Indexed: 01/12/2025] Open
Abstract
The hair follicle is a complex of mesenchymal and epithelial cells acquiring different properties and characteristics responsible for fulfilling its inductive and regenerative role. The epidermal and dermal crosstalk induces morphogenesis and maintains hair follicle cycling properties. The hair follicle is enriched with pluripotent stem cells, where dermal papilla (DP) cells and dermal sheath (DS) cells constitute the dermal compartment and the epithelial stem cells existing in the bulge region exert their regenerative role by mediating the epithelial-mesenchymal interaction (EMI). Many studies have developed and focused on various methods to optimize the EMI through in vivo and in vitro approaches for hair regeneration. The culturing of human hair mesenchymal cells resulted in the loss of trichogenicity and inductive properties of DP cells, limiting their potential application in de novo hair follicle generation in vivo. Epithelial stem cells derived from human hair follicles are challenging to isolate and culture, making it difficult to obtain enough cells for hair regeneration purposes. Mesenchymal stem cells and epithelial stem cells derived from human hair follicles lose their ability to form hair follicles during culture, limiting the study of hair follicle formation in vivo. Therefore, many attempts and methods have been developed to overcome these limitations. Here, we review the possible and necessary cell methods and techniques used for human hair follicle regeneration and the restoration of hair follicle cell inductivity in culture.
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Affiliation(s)
- Ons Ben Hamida
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea; (O.B.H.); (M.K.K.); (Y.K.S.); (M.K.K.)
| | - Moon Kyu Kim
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea; (O.B.H.); (M.K.K.); (Y.K.S.); (M.K.K.)
- Hair Transplantation Center, Kyungpook National University Hospital, Daegu 41944, Republic of Korea
| | - Young Kwan Sung
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea; (O.B.H.); (M.K.K.); (Y.K.S.); (M.K.K.)
| | - Min Kyu Kim
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea; (O.B.H.); (M.K.K.); (Y.K.S.); (M.K.K.)
| | - Mi Hee Kwack
- Department of Immunology, School of Medicine, Kyungpook National University, Daegu 41944, Republic of Korea; (O.B.H.); (M.K.K.); (Y.K.S.); (M.K.K.)
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16
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Jia YY, Atwood SX. Diversity of human skin three-dimensional organotypic cultures. Curr Opin Genet Dev 2024; 89:102275. [PMID: 39536613 DOI: 10.1016/j.gde.2024.102275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2024] [Revised: 09/17/2024] [Accepted: 10/16/2024] [Indexed: 11/16/2024]
Abstract
Recently, significant strides have been made in the development of high-fidelity skin organoids, encompassing techniques such as 3D bioprinting, skin-on-a-chip systems, and models derived from pluripotent stem cells (PSCs), replicating appendage structures and diverse skin cell types. Despite the emergence of these state-of-the-art skin engineering models, human organotypic cultures (OTCs), initially proposed in the 1970s, continue to reign as the predominant in vitro cultured three-dimensional skin model in the field of tissue engineering. This enduring prevalence is owed to their cost-effectiveness, straight forward setup, time efficiency, and faithful representation of native human skin. In this review, we systematically delineate recent advances in skin OTC models, aiming to inform future efforts to enhance in vitro skin model fidelity and reproducibility.
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Affiliation(s)
- Yunlong Y Jia
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA
| | - Scott X Atwood
- Department of Developmental and Cell Biology, University of California, Irvine, Irvine, CA 92697, USA; NSF-Simons Center for Multiscale Cell Fate Research, University of California, Irvine, Irvine, CA 92697, USA; Center for Complex Biological Systems, Chao Family Comprehensive Cancer Center, University of California, Irvine, Irvine, CA 92697, USA; Department of Dermatology, University of California, Irvine, Irvine, CA 92697, USA.
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17
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Zhang YX, Zhou Y, Xiong YY, Li YM. Beyond skin deep: Revealing the essence of iPS cell-generated skin organoids in regeneration. Burns 2024; 50:107194. [PMID: 39317530 DOI: 10.1016/j.burns.2024.06.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 03/13/2024] [Accepted: 06/23/2024] [Indexed: 09/26/2024]
Abstract
Various methods have been used for in vivo and in vitro skin regeneration, including stem cell therapy, tissue engineering, 3D printing, and platelet-rich plasma (PRP) injection therapy. However, these approaches are rooted in the existing knowledge of skin structures, which overlook the normal physiological processes of skin development and fall short of replicating the skin's regenerative processes outside the body. This comprehensive review primarily focuses on skin organoids derived from human pluripotent stem cells, which have the capacity to regenerate human skin tissue by restoring the embryonic skin structure, thus offering a novel avenue for producing in vitro skin substitutes. Furthermore, they contribute to the repair of damaged skin lesions in patients with systemic sclerosis or severe burns. Particular emphasis will be placed on the origins, generations, and applications of skin organoids, especially in dermatology, and the challenges that must be addressed before clinical implementation.
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Affiliation(s)
- Yu-Xuan Zhang
- Institute of Regenerative Medicine, and Department of Dermatology, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China
| | - Yuan Zhou
- Institute of Regenerative Medicine, and Department of Dermatology, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China
| | - Yu-Yun Xiong
- Institute of Regenerative Medicine, and Department of Dermatology, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China.
| | - Yu-Mei Li
- Institute of Regenerative Medicine, and Department of Dermatology, Affiliated Hospital of Jiangsu University, Jiangsu University, Zhenjiang, China.
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18
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Lv Y, Yang W, Kannan PR, Zhang H, Zhang R, Zhao R, Kong X. Materials-based hair follicle engineering: Basic components and recent advances. Mater Today Bio 2024; 29:101303. [PMID: 39498149 PMCID: PMC11532916 DOI: 10.1016/j.mtbio.2024.101303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2024] [Revised: 10/11/2024] [Accepted: 10/17/2024] [Indexed: 11/07/2024] Open
Abstract
The hair follicle (HF) is a significant skin appendage whose primary function is to produce the hair shaft. HFs are a non-renewable resource; skin damage or follicle closure may lead to permanent hair loss. Advances in biomaterials and biomedical engineering enable the feasibility of manipulating the HF-associated cell function for follicle reconstruction via rational design. The regeneration of bioengineered HF addresses the issue of limited resources and contributes to advancements in research and applications in hair loss treatment, HF development, and drug screening. Based on these requirements, this review summarizes the basic and recent advances in hair follicle regulation, including four components: acquisition of stem cells, signaling pathways, materials, and engineering methods. Recent studies have focused on efficiently combining these components and reproducing functionality, which would boost fabrication in HF rebuilding ex vivo, thereby eliminating the obstacles of transplantation into animals to promote mature development.
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Affiliation(s)
- Yudie Lv
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Weili Yang
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Perumal Ramesh Kannan
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Han Zhang
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Rui Zhang
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Ruibo Zhao
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Xiangdong Kong
- Institute of Smart Biomedical Materials, School of Materials Science and Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
- Zhejiang-Mauritius Joint Research Center for Biomaterials and Tissue Engineering, Zhejiang Sci-Tech University, Hangzhou, 310018, China
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19
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Quílez C, Bebiano LB, Jones E, Maver U, Meesters L, Parzymies P, Petiot E, Rikken G, Risueño I, Zaidi H, Zidarič T, Bekeschus S, H van den Bogaard E, Caley M, Colley H, López NG, Letsiou S, Marquette C, Maver T, Pereira RF, Tobin DJ, Velasco D. Targeting the Complexity of In Vitro Skin Models: A Review of Cutting-Edge Developments. J Invest Dermatol 2024; 144:2650-2670. [PMID: 39127929 DOI: 10.1016/j.jid.2024.04.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2023] [Revised: 02/29/2024] [Accepted: 04/10/2024] [Indexed: 08/12/2024]
Abstract
Skin in vitro models offer much promise for research, testing drugs, cosmetics, and medical devices, reducing animal testing and extensive clinical trials. There are several in vitro approaches to mimicking human skin behavior, ranging from simple cell monolayer to complex organotypic and bioengineered 3-dimensional models. Some have been approved for preclinical studies in cosmetics, pharmaceuticals, and chemicals. However, development of physiologically reliable in vitro human skin models remains in its infancy. This review reports on advances in in vitro complex skin models to study skin homeostasis, aging, and skin disease.
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Affiliation(s)
- Cristina Quílez
- Bioengineering Department, Universidad Carlos III de Madrid, Leganés, Spain; Fundación Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, Spain
| | - Luís B Bebiano
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Instituto de Engenharia Biomédica (INEB), Universidade do Porto, Porto, Portugal
| | - Eleri Jones
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Uroš Maver
- Institute of Biomedical Sciences, Faculty of Medicine, University of Maribor, Maribor, Slovenia; Department of Pharmacology, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Luca Meesters
- Department of Dermatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Piotr Parzymies
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Emma Petiot
- 3d.FAB, CNRS, INSA, Univ Lyon, CPE-Lyon, UMR5246, ICBMS, Université Lyon 1, Villeurbanne Cedex, France
| | - Gijs Rikken
- Department of Dermatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ignacio Risueño
- Bioengineering Department, Universidad Carlos III de Madrid, Leganés, Spain; Fundación Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, Spain
| | - Hamza Zaidi
- 3d.FAB, CNRS, INSA, Univ Lyon, CPE-Lyon, UMR5246, ICBMS, Université Lyon 1, Villeurbanne Cedex, France
| | - Tanja Zidarič
- Institute of Biomedical Sciences, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Sander Bekeschus
- Clinic and Policlinic for Dermatology and Venerology, Rostock University Medical Center, Rostock, Germany; ZIK plasmatis, Leibniz Institute for Plasma Science and Technology (INP Greifswald), Greifswald, Germany
| | | | - Matthew Caley
- Centre for Cell Biology and Cutaneous Research, Blizard Institute, Faculty of Medicine and Dentistry, Queen Mary University of London, London, United Kingdom
| | - Helen Colley
- School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
| | - Nuria Gago López
- Melanoma group, Molecular Oncology Programme, Spanish National Cancer Research Center (CNIO), Madrid, Spain
| | - Sophia Letsiou
- Department of Biomedical Sciences, University of West Attica, Athens, Greece; Department of Food Science and Technology, University of West Attica, Athens, Greece
| | - Christophe Marquette
- 3d.FAB, CNRS, INSA, Univ Lyon, CPE-Lyon, UMR5246, ICBMS, Université Lyon 1, Villeurbanne Cedex, France
| | - Tina Maver
- Institute of Biomedical Sciences, Faculty of Medicine, University of Maribor, Maribor, Slovenia; Department of Pharmacology, Faculty of Medicine, University of Maribor, Maribor, Slovenia
| | - Rúben F Pereira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal; Instituto de Engenharia Biomédica (INEB), Universidade do Porto, Porto, Portugal; ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Desmond J Tobin
- Charles Institute of Dermatology, University College Dublin, Dublin, Ireland; Conway Institute of Biomolecular and Biomedical Research, University College Dublin, Dublin, Ireland
| | - Diego Velasco
- Bioengineering Department, Universidad Carlos III de Madrid, Leganés, Spain; Fundación Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, Spain.
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20
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Lee JO, Kim YJ, Jang YN, Lee JM, Shin K, Jeong S, Chung HJ, Kim BJ. ICP5249 Promotes Hair Growth by Activating the AMPK-Autophagy Signaling Pathway. J Microbiol Biotechnol 2024; 34:1810-1818. [PMID: 39155393 PMCID: PMC11473489 DOI: 10.4014/jmb.2406.06015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2024] [Revised: 07/18/2024] [Accepted: 07/21/2024] [Indexed: 08/20/2024]
Abstract
Autophagy is essential for regulating hair growth. Accordingly, we developed autophagy activator ICP5249 (pentasodium tetracarboxymethyl palmitoyl dipeptide) and investigated its potential role in hair growth. We evaluated its effect on hair growth using in vitro human dermal papilla cells (hDPCs) culture model, human hair follicles (hHFs) organ culture model, and telogenic mouse model. ICP5249 increased hDPCs proliferation and alkaline phosphatase (ALP) expression. It also increased microtubule-associated protein (MAP) light chain 3-II (LC3-II) expression and AMP-activated protein kinase α (AMPKα) and unc-51-like kinase 1 (ULK1) phosphorylation in hDPCs. ICP5249 extended the length of hHFs and increased LC3-II please revised from LC3 II to LC3-II in all manuscript expression. Consistently, ICP5249 also significantly increased hair growth area, dermis thickness, and anagen and telogen ratio in telogenic mice. Furthermore, it upregulated Ki-67 and LC3-II expression and AMPKα phosphorylation on the mice’s dorsal skin. To investigate whether AMPK regulates ICP5249-induced hair growth, following treatment with the compound C, AMPK inhibitor, the activity of ICP5249 was evaluated. The effects of ICP5249 on hair growth were assessed following pretreatment with the AMPK inhibitor compound C. The results showed that compound C suppressed ICP5249-mediated proliferation and hair inductivity in hDPCs. Additionally, compound C inhibited ICP5249-mediated hair growth area, dermis thickness, anagen and telogen ration, and LC3-II expression in mice, suggesting that ICP5249 promotes hair growth by modulating autophagy, with AMPKα playing a regulatory role in this process. Taken together, we demonstrate that ICP5249 has the potential as an ingredient for improving hair growth.
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Affiliation(s)
- Jung Ok Lee
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Yu-jin Kim
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
| | - You Na Jang
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Jung min Lee
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul 06973, Republic of Korea
| | - Kayoung Shin
- R&D Center, Incospharm Corporation, Daejeon 34000, Republic of Korea
| | - Sekyoo Jeong
- R&D Center, Incospharm Corporation, Daejeon 34000, Republic of Korea
| | - Hwa-Jee Chung
- R&D Center, Incospharm Corporation, Daejeon 34000, Republic of Korea
| | - Beom Joon Kim
- Department of Dermatology, College of Medicine, Chung-Ang University, Seoul 06974, Republic of Korea
- Department of Medicine, Graduate School, Chung-Ang University, Seoul 06973, Republic of Korea
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21
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Riabinin A, Pankratova M, Rogovaya O, Vorotelyak E, Terskikh V, Vasiliev A. Ideal Living Skin Equivalents, From Old Technologies and Models to Advanced Ones: The Prospects for an Integrated Approach. BIOMED RESEARCH INTERNATIONAL 2024; 2024:9947692. [PMID: 39184355 PMCID: PMC11343635 DOI: 10.1155/2024/9947692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 04/18/2024] [Accepted: 07/20/2024] [Indexed: 08/27/2024]
Abstract
The development of technologies for the generation and transplantation of living skin equivalents (LSEs) is a significant area of translational medicine. Such functional equivalents can be used to model and study the morphogenesis of the skin and its derivatives, to test drugs, and to improve the healing of chronic wounds, burns, and other skin injuries. The evolution of LSEs over the past 50 years has demonstrated the leap in technology and quality and the shift from classical full-thickness LSEs to principled new models, including modification of classical models and skin organoids with skin derived from human-induced pluripotent stem cells (iPSCs) (hiPSCs). Modern methods and approaches make it possible to create LSEs that successfully mimic native skin, including derivatives such as hair follicles (HFs), sebaceous and sweat glands, blood vessels, melanocytes, and nerve cells. New technologies such as 3D and 4D bioprinting, microfluidic systems, and genetic modification enable achievement of new goals, cost reductions, and the scaled-up production of LSEs.
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Affiliation(s)
- Andrei Riabinin
- Department of Cell BiologyKoltzov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow, Russia
| | - Maria Pankratova
- Department of Cell BiologyKoltzov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow, Russia
| | - Olga Rogovaya
- Department of Cell BiologyKoltzov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow, Russia
| | - Ekaterina Vorotelyak
- Department of Cell BiologyKoltzov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow, Russia
| | - Vasiliy Terskikh
- Department of Cell BiologyKoltzov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow, Russia
| | - Andrey Vasiliev
- Department of Cell BiologyKoltzov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow, Russia
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22
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Aliyazdi S, Frisch S, Neu T, Veldung B, Karande P, Schaefer UF, Loretz B, Vogt T, Lehr CM. A Novel 3D Printed Model of Infected Human Hair Follicles to Demonstrate Targeted Delivery of Nanoantibiotics. ACS Biomater Sci Eng 2024; 10:4947-4957. [PMID: 38961601 PMCID: PMC11322910 DOI: 10.1021/acsbiomaterials.4c00570] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 06/07/2024] [Accepted: 06/26/2024] [Indexed: 07/05/2024]
Abstract
Hair follicle-penetrating nanoparticles offer a promising avenue for targeted antibiotic delivery, especially in challenging infections like acne inversa or folliculitis decalvans. However, demonstrating their efficacy with existing preclinical models remains difficult. This study presents an innovative approach using a 3D in vitro organ culture system with human hair follicles to investigate the hypothesis that antibiotic nanocarriers may reach bacteria within the follicular cleft more effectively than free drugs. Living human hair follicles were transplanted into a collagen matrix within a 3D printed polymer scaffold to replicate the follicle's microenvironment. Hair growth kinetics over 7 days resembled those of simple floating cultures. In the 3D model, fluorescent nanoparticles exhibited some penetration into the follicle, not observed in floating cultures. Staphylococcus aureus bacteria displayed similar distribution profiles postinfection of follicles. While rifampicin-loaded lipid nanocapsules were as effective as free rifampicin in floating cultures, only nanoencapsulated rifampicin achieved the same reduction of CFU/mL in the 3D model. This underscores the hair follicle microenvironment's critical role in limiting conventional antibiotic treatment efficacy. By mimicking this microenvironment, the 3D model demonstrates the advantage of topically administered nanocarriers for targeted antibiotic therapy against follicular infections.
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Affiliation(s)
- Samy Aliyazdi
- Department
of Drug Delivery, Helmholtz Center for Infection Research, Helmholtz-Institute for Pharmaceutical Research Saarland, Campus E8 1, Saarbrücken 66123, Germany
- Saarland
University, Saarbrücken 66123, Germany
| | - Sarah Frisch
- Department
of Drug Delivery, Helmholtz Center for Infection Research, Helmholtz-Institute for Pharmaceutical Research Saarland, Campus E8 1, Saarbrücken 66123, Germany
- Saarland
University, Saarbrücken 66123, Germany
| | - Tobias Neu
- Department
of Drug Delivery, Helmholtz Center for Infection Research, Helmholtz-Institute for Pharmaceutical Research Saarland, Campus E8 1, Saarbrücken 66123, Germany
- Saarland
University, Saarbrücken 66123, Germany
| | - Barbara Veldung
- Specialist
in Plastic and Aesthetic Surgery, Saarbrücken 66111, Germany
| | - Pankaj Karande
- Chemical
and Biological Engineering, Rensselaer Polytechnic
Institute, Troy, New York 12180, United States
| | | | - Brigitta Loretz
- Department
of Drug Delivery, Helmholtz Center for Infection Research, Helmholtz-Institute for Pharmaceutical Research Saarland, Campus E8 1, Saarbrücken 66123, Germany
| | - Thomas Vogt
- Clinic
for Dermatology, University Clinic Homburg, Kirrberger Str., Homburg 66424, Germany
| | - Claus-Michael Lehr
- Department
of Drug Delivery, Helmholtz Center for Infection Research, Helmholtz-Institute for Pharmaceutical Research Saarland, Campus E8 1, Saarbrücken 66123, Germany
- Saarland
University, Saarbrücken 66123, Germany
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23
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Cho SW, Malick H, Kim SJ, Grattoni A. Advances in Skin-on-a-Chip Technologies for Dermatological Disease Modeling. J Invest Dermatol 2024; 144:1707-1715. [PMID: 38493383 DOI: 10.1016/j.jid.2024.01.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/19/2024] [Accepted: 01/29/2024] [Indexed: 03/18/2024]
Abstract
Skin-on-a-chip (SoC) technologies are emerging as a paradigm shift in dermatology research by replicating human physiology in a dynamic manner not achievable by current animal models. Although animal models have contributed to successful clinical trials, their ability to predict human outcomes remains questionable, owing to inherent differences in skin anatomy and immune response. Covering areas including infectious diseases, autoimmune skin conditions, wound healing, drug toxicity, aging, and antiaging, SoC aims to circumvent the inherent disparities created by traditional models. In this paper, we review current SoC technologies, highlighting their potential as an alternative to animal models for a deeper understanding of complex skin conditions.
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Affiliation(s)
- Seo Won Cho
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas, USA; Texas A&M University School of Medicine, College Station, Texas, USA
| | - Hamza Malick
- Texas A&M University School of Medicine, College Station, Texas, USA
| | - Soo Jung Kim
- Department of Dermatology, Baylor College of Medicine, Houston, Texas, USA
| | - Alessandro Grattoni
- Department of Nanomedicine, Houston Methodist Research Institute, Houston, Texas, USA; Department of Surgery, Houston Methodist Hospital, Houston, Texas, USA; Department of Radiation Oncology, Houston Methodist Hospital, Houston, Texas, USA.
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24
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Ding YW, Li Y, Zhang ZW, Dao JW, Wei DX. Hydrogel forming microneedles loaded with VEGF and Ritlecitinib/polyhydroxyalkanoates nanoparticles for mini-invasive androgenetic alopecia treatment. Bioact Mater 2024; 38:95-108. [PMID: 38699241 PMCID: PMC11061199 DOI: 10.1016/j.bioactmat.2024.04.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/27/2024] [Accepted: 04/19/2024] [Indexed: 05/05/2024] Open
Abstract
Androgenetic alopecia (AGA), the most prevalent clinical hair loss, lacks safe and effective treatments due to downregulated angiogenic genes and insufficient vascularization in the perifollicular microenvironment of the bald scalp in AGA patients. In this study, a hyaluronic acid (HA) based hydrogel-formed microneedle (MN) was designed, referred to as V-R-MNs, which was simultaneously loaded with vascular endothelial growth factor (VEGF) and the novel hair loss drug Ritlecitinib, the latter is encapsulated in slowly biodegradable polyhydroxyalkanoates (PHAs) nanoparticles (R-PHA NPs) for minimally invasive AGA treatment. The integration of HA based hydrogel alongside PHA nanoparticles significantly bolstered the mechanical characteristics of microneedles and enhanced skin penetration efficiency. Due to the biosafety, mechanical strength, and controlled degradation properties of HA hydrogel formed microneedles, V-R-MNs can effectively penetrate the skin's stratum corneum, facilitating the direct delivery of VEGF and Ritlecitinib in a minimally invasive, painless and long-term sustained release manner. V-R-MNs not only promoted angiogenesis and improve the immune microenvironment around the hair follicle to promote the proliferation and development of hair follicle cells, but also the application of MNs to the skin to produce certain mechanical stimulation could also promote angiogenesis. In comparison to the clinical drug minoxidil for AGA treatment, the hair regeneration effect of V-R-MN in AGA model mice is characterized by a rapid onset of the anagen phase, improved hair quality, and greater coverage. This introduces a new, clinically safer, and more efficient strategy for AGA treatment, and serving as a reference for the treatment of other related diseases.
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Affiliation(s)
- Yan-Wen Ding
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China
| | - Yang Li
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China
| | - Zhi-Wei Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China
| | - Jin-Wei Dao
- Dehong Biomedical Engineering Research Center, Dehong Teachers' College, Dehong, Yunnan Province, China
| | - Dai-Xu Wei
- Key Laboratory of Resource Biology and Biotechnology in Western China, Ministry of Education, School of Medicine, Department of Life Sciences and Medicine, Northwest University, Xi'an, 710069, China
- School of Clinical Medicine, Chengdu University, Chengdu, China
- Shaanxi Key Laboratory for Carbon Neutral Technology, Xi'an, 710069, China
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25
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Quílez C, Jeon EY, Pappalardo A, Pathak P, Abaci HE. Efficient Generation of Skin Organoids from Pluripotent Cells via Defined Extracellular Matrix Cues and Morphogen Gradients in a Spindle-Shaped Microfluidic Device. Adv Healthc Mater 2024; 13:e2400405. [PMID: 38452278 PMCID: PMC11305970 DOI: 10.1002/adhm.202400405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/05/2024] [Indexed: 03/09/2024]
Abstract
Pluripotent stem cell-derived skin organoids (PSOs) emerge as a developmental skin model that is self-organized into multiple components, such as hair follicles. Despite their impressive complexity, PSOs are currently generated in the absence of 3D extracellular matrix (ECM) signals and have several major limitations, including an inverted anatomy (e.g., epidermis inside/dermis outside). In this work, a method is established to generate PSOs effectively in a chemically-defined 3D ECM environment. After examining various dermal ECM molecules, it is found that PSOs generated in collagen -type I (COLI) supplemented with laminin 511 (LAM511) exhibit increased growth compared to conventional free-floating conditions, but fail to induce complete skin differentiation due in part to necrosis. This problem is addressed by generating the PSOs in a 3D bioprinted spindle-shaped hydrogel device, which constrains organoid growth longitudinally. This culture system significantly reduces organoid necrosis and leads to a twofold increase in keratinocyte differentiation and an eightfold increase in hair follicle formation. Finally, the system is adapted as a microfluidic device to create asymmetrical gradients of differentiation factors and improves the spatial organization of dermal and epidermal cells. This study highlights the pivotal role of ECM and morphogen gradients in promoting and spatially-controlling skin differentiation in the PSO framework.
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Affiliation(s)
- Cristina Quílez
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY 10032, USA
- Department of Bioengineering, Universidad Carlos III de Madrid, Leganés, 28911 Spain
- Fundación Instituto de Investigación Sanitaria de la Fundación Jiménez Díaz, Madrid, 28040, Spain
| | - Eun Y. Jeon
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Alberto Pappalardo
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Pooja Pathak
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY 10032, USA
| | - Hasan E. Abaci
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY 10032, USA
- Department of Biomedical Engineering, Columbia University, New York, NY 10032, USA
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26
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Shah KR, Garriga-Cerda L, Pappalardo A, Sorrells L, Jeong HJ, Lee CH, Abaci HE. A biopsy-sized 3D skin model with a perifollicular vascular plexus enables studying immune cell trafficking in the skin. Biofabrication 2024; 16:045006. [PMID: 38941996 PMCID: PMC11244652 DOI: 10.1088/1758-5090/ad5d1a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 06/28/2024] [Indexed: 06/30/2024]
Abstract
Human skin vasculature features a unique anatomy in close proximity to the skin appendages and acts as a gatekeeper for constitutive lymphocyte trafficking to the skin. Approximating such structural complexity and functionality in 3D skin models is an outstanding tissue engineering challenge. In this study, we leverage the capabilities of the digital-light-processing bioprinting to generate an anatomically-relevant and miniaturized 3D skin-on-a-chip (3D-SoC) model in the size of a 6 mm punch biopsy. The 3D-SoC contains a perfusable vascular network resembling the superficial vascular plexus of the skin and closely surrounding bioengineered hair follicles. The perfusion capabilities of the 3D-SoC enables the circulation of immune cells, and high-resolution imaging of the immune cell-endothelial cell interactions, namely tethering, rolling, and extravasation in real-time. Moreover, the vascular pattern in 3D-SoC captures the physiological range of shear rates found in cutaneous blood vessels and allows for studying the effect of shear rate on T cell trafficking. In 3D-SoC, as expected,in vitro-polarized T helper 1 (Th1) cells show a stronger attachment on the vasculature compared to naïve T cells. Both naïve and T cells exhibit higher retention in the low-shear zones in the early stages (<5 min) of T cell attachment. Interestingly, at later stages T cell retention rate becomes independent of the shear rate. The attached Th1 cells further transmigrate from the vessel walls to the extracellular space and migrate toward the bioengineered hair follicles and interfollicular epidermis. When the epidermis is not present, Th1 cell migration toward the epidermis is significantly hindered, underscoring the role of epidermal signals on T cell infiltration. Our data validates the capabilities of 3D-SoC model to study the interactions between immune cells and skin vasculature in the context of epidermal signals. The biopsy-sized 3D-SoC model in this study represents a new level of anatomical and cellular complexity, and brings us a step closer to generating a truly functional human skin with its tissue-specific vasculature and appendages in the presence of circulating immune cells.
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Affiliation(s)
- Krutav Rakesh Shah
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States of America
| | - Laura Garriga-Cerda
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY 10032, United States of America
| | - Alberto Pappalardo
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY 10032, United States of America
| | - Leila Sorrells
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States of America
| | - Hun Jin Jeong
- Regenerative Engineering Laboratory, Columbia University Irving Medical Center, New York, NY 10032, United States of America
| | - Chang H Lee
- Regenerative Engineering Laboratory, Columbia University Irving Medical Center, New York, NY 10032, United States of America
| | - Hasan Erbil Abaci
- Department of Dermatology, Columbia University Irving Medical Center, New York, NY 10032, United States of America
- Department of Biomedical Engineering, Columbia University, New York, NY 10027, United States of America
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27
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Wei Q, An Y, Zhao X, Li M, Zhang J. Three-dimensional bioprinting of tissue-engineered skin: Biomaterials, fabrication techniques, challenging difficulties, and future directions: A review. Int J Biol Macromol 2024; 266:131281. [PMID: 38641503 DOI: 10.1016/j.ijbiomac.2024.131281] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/17/2024] [Accepted: 03/29/2024] [Indexed: 04/21/2024]
Abstract
As an emerging new manufacturing technology, Three-dimensional (3D) bioprinting provides the potential for the biomimetic construction of multifaceted and intricate architectures of functional integument, particularly functional biomimetic dermal structures inclusive of cutaneous appendages. Although the tissue-engineered skin with complete biological activity and physiological functions is still cannot be manufactured, it is believed that with the advances in matrix materials, molding process, and biotechnology, a new generation of physiologically active skin will be born in the future. In pursuit of furnishing readers and researchers involved in relevant research to have a systematic and comprehensive understanding of 3D printed tissue-engineered skin, this paper furnishes an exegesis on the prevailing research landscape, formidable obstacles, and forthcoming trajectories within the sphere of tissue-engineered skin, including: (1) the prevalent biomaterials (collagen, chitosan, agarose, alginate, etc.) routinely employed in tissue-engineered skin, and a discerning analysis and comparison of their respective merits, demerits, and inherent characteristics; (2) the underlying principles and distinguishing attributes of various current printing methodologies utilized in tissue-engineered skin fabrication; (3) the present research status and progression in the realm of tissue-engineered biomimetic skin; (4) meticulous scrutiny and summation of the extant research underpinning tissue-engineered skin inform the identification of prevailing challenges and issues.
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Affiliation(s)
- Qinghua Wei
- School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China; Innovation Center NPU Chongqing, Northwestern Polytechnical University, Chongqing 400000, China.
| | - Yalong An
- School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Xudong Zhao
- School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Mingyang Li
- School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
| | - Juan Zhang
- School of Mechanical Engineering, Northwestern Polytechnical University, Xi'an 710072, China
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28
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Lv X, Zhao N, Long S, Wang G, Ran X, Gao J, Wang J, Wang T. 3D skin bioprinting as promising therapeutic strategy for radiation-associated skin injuries. Wound Repair Regen 2024; 32:217-228. [PMID: 38602068 DOI: 10.1111/wrr.13181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 02/16/2024] [Accepted: 04/01/2024] [Indexed: 04/12/2024]
Abstract
Both cutaneous radiation injury and radiation combined injury (RCI) could have serious skin traumas, which are collectively referred to as radiation-associated skin injuries in this paper. These two types of skin injuries require special managements of wounds, and the therapeutic effects still need to be further improved. Cutaneous radiation injuries are common in both radiotherapy patients and victims of radioactive source accidents, which could lead to skin necrosis and ulcers in serious conditions. At present, there are still many challenges in management of cutaneous radiation injuries including early diagnosis, lesion assessment, and treatment prognosis. Radiation combined injuries are special and important issues in severe nuclear accidents, which often accompanied by serious skin traumas. Mass victims of RCI would be the focus of public health concern. Three-dimensional (3D) bioprinting, as a versatile and favourable technique, offers effective approaches to fabricate biomimetic architectures with bioactivity, which provides potentials for resolve the challenges in treating radiation-associated skin injuries. Combining with the cutting-edge advances in 3D skin bioprinting, the authors analyse the damage characteristics of skin wounds in both cutaneous radiation injury and RCI and look forward to the potential value of 3D skin bioprinting for the treatments of radiation-associated skin injuries.
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Affiliation(s)
- Xiaofan Lv
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, School of Preventive Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Na Zhao
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, School of Preventive Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
- Institute of Materia Medica and Department of Pharmaceutics, College of Pharmacy, Army Medical University (Third Military Medical University), Chongqing, China
| | - Shuang Long
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, School of Preventive Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Guojian Wang
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, School of Preventive Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Xinze Ran
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, School of Preventive Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Jining Gao
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, School of Preventive Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Junping Wang
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, School of Preventive Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
| | - Tao Wang
- State Key Laboratory of Trauma and Chemical Poisoning, Institute of Combined Injury, School of Preventive Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China
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29
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Liu H, Xing F, Yu P, Zhe M, Duan X, Liu M, Xiang Z, Ritz U. A review of biomacromolecule-based 3D bioprinting strategies for structure-function integrated repair of skin tissues. Int J Biol Macromol 2024; 268:131623. [PMID: 38642687 DOI: 10.1016/j.ijbiomac.2024.131623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 04/09/2024] [Accepted: 04/13/2024] [Indexed: 04/22/2024]
Abstract
When skin is damaged or affected by diseases, it often undergoes irreversible scar formation, leading to aesthetic concerns and psychological distress for patients. In cases of extensive skin defects, the patient's life can be severely compromised. In recent years, 3D printing technology has emerged as a groundbreaking approach to skin tissue engineering, offering promising solutions to various skin-related conditions. 3D bioprinting technology enables the precise fabrication of structures by programming the spatial arrangement of cells within the skin tissue and subsequently printing skin replacements either in a 3D bioprinter or directly at the site of the defect. This study provides a comprehensive overview of various biopolymer-based inks, with a particular emphasis on chitosan (CS), starch, alginate, agarose, cellulose, and fibronectin, all of which are natural polymers belonging to the category of biomacromolecules. Additionally, it summarizes artificially synthesized polymers capable of enhancing the performance of these biomacromolecule-based bioinks, thereby composing hybrid biopolymer inks aimed at better application in skin tissue engineering endeavors. This review paper examines the recent advancements, characteristics, benefits, and limitations of biological 3D bioprinting techniques for skin tissue engineering. By utilizing bioinks containing seed cells, hydrogels with bioactive factors, and biomaterials, complex structures resembling natural skin can be accurately fabricated in a layer-by-layer manner. The importance of biological scaffolds in promoting skin wound healing and the role of 3D bioprinting in skin tissue regeneration processes is discussed. Additionally, this paper addresses the challenges and constraints associated with current 3D bioprinting technologies for skin tissue and presents future perspectives. These include advancements in bioink formulations, full-thickness skin bioprinting, vascularization strategies, and skin appendages bioprinting.
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Affiliation(s)
- Hao Liu
- Department of Orthopedic Surgery, Orthopedic Research Institute, Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Fei Xing
- Department of Pediatric Surgery, Orthopedic Research Institute, West China Hospital, Sichuan University, 610041 Chengdu, China
| | - Peiyun Yu
- LIMES Institute, Department of Molecular Brain Physiology and Behavior, University of Bonn, Carl-Troll-Str. 31, 53115 Bonn, Germany
| | - Man Zhe
- Animal Experiment Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Xin Duan
- Department of Orthopedic Surgery, Orthopedic Research Institute, Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Ming Liu
- Department of Orthopedic Surgery, Orthopedic Research Institute, Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China
| | - Zhou Xiang
- Department of Orthopedic Surgery, Orthopedic Research Institute, Laboratory of Stem Cell and Tissue Engineering, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, China; Department of Orthopedics, Sanya People's Hospital, 572000 Sanya, Hainan, China.
| | - Ulrike Ritz
- Department of Orthopaedics and Traumatology, Biomatics Group, University Medical Center of the Johannes Gutenberg University, Langenbeckstr. 1, 55131 Mainz, Germany.
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30
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Tan CT, Lim CY, Lay K. Modelling Human Hair Follicles-Lessons from Animal Models and Beyond. BIOLOGY 2024; 13:312. [PMID: 38785794 PMCID: PMC11117913 DOI: 10.3390/biology13050312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/27/2024] [Revised: 04/26/2024] [Accepted: 04/27/2024] [Indexed: 05/25/2024]
Abstract
The hair follicle is a specialized appendage of the skin that is critical for multiple functions, including thermoregulation, immune surveillance, and sebum production. Mammals are born with a fixed number of hair follicles that develop embryonically. Postnatally, these hair follicles undergo regenerative cycles of regression and growth that recapitulate many of the embryonic signaling pathways. Furthermore, hair cycles have a direct impact on skin regeneration in homeostasis, cutaneous wound healing, and disease conditions such as alopecia. Here, we review the current knowledge of hair follicle formation during embryonic development and the post-natal hair cycle, with an emphasis on the molecular signaling pathways underlying these processes. We then discuss efforts to capitalize on the field's understanding of in vivo mechanisms to bioengineer hair follicles or hair-bearing skin in vitro and how such models may be further improved to develop strategies for hair regeneration.
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Affiliation(s)
- Chew Teng Tan
- A*STAR Skin Research Labs (A*SRL), Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
| | - Chin Yan Lim
- A*STAR Skin Research Labs (A*SRL), Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
- Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117596, Singapore
| | - Kenneth Lay
- A*STAR Skin Research Labs (A*SRL), Agency for Science, Technology and Research (A*STAR), 8A Biomedical Grove, #06-06 Immunos, Singapore 138648, Singapore
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31
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Mikimoto D, Mori M, Toyoda A, Yo K, Oda H, Takeuchi S. Culture insert device with perfusable microchannels enhances in vitroskin model development and barrier function assessment. Biofabrication 2024; 16:035006. [PMID: 38569494 DOI: 10.1088/1758-5090/ad3a15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 04/03/2024] [Indexed: 04/05/2024]
Abstract
The ever-stricter regulations on animal experiments in the field of cosmetic testing have prompted a surge in skin-related research with a special focus on recapitulation of thein vivoskin structurein vitro. In vitrohuman skin models are seen as an important tool for skin research, which in recent years attracted a lot of attention and effort, with researchers moving from the simplest 2-layered models (dermis with epidermis) to models that incorporate other vital skin structures such as hypodermis, vascular structures, and skin appendages. In this study, we designed a microfluidic device with a reverse flange-shaped anchor that allows culturing of anin vitroskin model in a conventional 6-well plate and assessing its barrier function without transferring the skin model to another device or using additional contraptions. Perfusion of the skin model through vascular-like channels improved the morphogenesis of the epidermis compared with skin models cultured under static conditions. This also allowed us to assess the percutaneous penetration of the tested caffeine permeation and vascular absorption, which is one of the key metrics for systemic drug exposure evaluation.
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Affiliation(s)
| | - Masahito Mori
- Research Center for Beauty and Health Care Product Development Department, POLA Chemical Industries, Inc., Kanagawa, Japan
| | - Akemi Toyoda
- Frontier Research Center, POLA Chemical Industries, Inc., Kanagawa, Japan
| | - Kazuyuki Yo
- Frontier Research Center, POLA Chemical Industries, Inc., Kanagawa, Japan
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32
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Vandishi AK, Esmaeili A, Taghipour N. The promising prospect of human hair follicle regeneration in the shadow of new tissue engineering strategies. Tissue Cell 2024; 87:102338. [PMID: 38428370 DOI: 10.1016/j.tice.2024.102338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Revised: 02/11/2024] [Accepted: 02/22/2024] [Indexed: 03/03/2024]
Abstract
Hair loss disorder (alopecia) affects numerous people around the world. The low effectiveness and numerous side effects of common treatments have prompted researchers to investigate alternative and effective solutions. Hair follicle (HF) bioengineering is the knowledge of using hair-inductive (trichogenic) cells. Most bioengineering-based approaches focus on regenerating folliculogenesis through manipulation of regulators of physical/molecular properties in the HF niche. Despite the high potential of cell therapy, no cell product has been produced for effective treatment in the field of hair regeneration. This problem shows the challenges in the functionality of cultured human hair cells. To achieve this goal, research and development of new and practical approaches, technologies and biomaterials are needed. Based on recent advances in the field, this review evaluates emerging HF bioengineering strategies and the future prospects for the field of tissue engineering and successful HF regeneration.
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Affiliation(s)
- Arezoo Karami Vandishi
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Esmaeili
- Student Research Committee, Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Niloofar Taghipour
- Medical Nanotechnology and Tissue Engineering Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering and Applied Cell Sciences, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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33
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Jäger J, Vahav I, Thon M, Waaijman T, Spanhaak B, de Kok M, Bhogal RK, Gibbs S, Koning JJ. Reconstructed Human Skin with Hypodermis Shows Essential Role of Adipose Tissue in Skin Metabolism. Tissue Eng Regen Med 2024; 21:499-511. [PMID: 38367122 PMCID: PMC10987437 DOI: 10.1007/s13770-023-00621-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/17/2023] [Accepted: 08/27/2023] [Indexed: 02/19/2024] Open
Abstract
BACKGROUND Dysregulation of skin metabolism is associated with a plethora of diseases such as psoriasis and dermatitis. Until now, reconstructed human skin (RhS) models lack the metabolic potential of native human skin, thereby limiting their relevance to study human healthy and diseased skin. We aimed to determine whether incorporation of an adipocyte-containing hypodermis into RhS improves its metabolic potential and to identify major metabolic pathways up-regulated in adipose-RhS. METHODS Primary human keratinocytes, fibroblasts and differentiated adipose-derived stromal cells were co-cultured in a collagen/fibrin scaffold to create an adipose-RhS. The model was extensively characterized structurally in two- and three-dimensions, by cytokine secretion and RNA-sequencing for metabolic enzyme expression. RESULTS Adipose-RhS showed increased secretion of adipokines. Both RhS and adipose-RhS expressed 29 of 35 metabolic genes expressed in ex vivo native human skin. Addition of the adipose layer resulted in up-regulation of 286 genes in the dermal-adipose fraction of which 7 were involved in phase I (CYP19A1, CYP4F22, CYP3A5, ALDH3B2, EPHX3) and phase II (SULT2B1, GPX3) metabolism. Vitamin A, D and carotenoid metabolic pathways were enriched. Additionally, pro-inflammatory (IL-1β, IL-18, IL-23, IL-33, IFN-α2, TNF-α) and anti-inflammatory cytokine (IL-10, IL-12p70) secretion was reduced in adipose-RhS. CONCLUSIONS Adipose-RhS mimics healthy native human skin more closely than traditional RhS since it has a less inflamed phenotype and a higher metabolic activity, indicating the contribution of adipocytes to tissue homeostasis. Therefore it is better suited to study onset of skin diseases and the effect of xenobiotics.
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Affiliation(s)
- Jonas Jäger
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Inflammatory Diseases, Amsterdam, The Netherlands
| | - Irit Vahav
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Movement Sciences, Tissue Function & Regeneration, Amsterdam, The Netherlands
| | - Maria Thon
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Inflammatory Diseases, Amsterdam, The Netherlands
| | - Taco Waaijman
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Inflammatory Diseases, Amsterdam, The Netherlands
| | - Bas Spanhaak
- Systems Biology Lab, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Michael de Kok
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Inflammatory Diseases, Amsterdam, The Netherlands
| | | | - Susan Gibbs
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands
- Amsterdam Institute for Infection and Immunity, Inflammatory Diseases, Amsterdam, The Netherlands
- Department of Oral Cell Biology, Academic Centre for Dentistry Amsterdam (ACTA), University of Amsterdam and Vrije Universiteit, Amsterdam, The Netherlands
| | - Jasper J Koning
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC Location Vrije Universiteit Amsterdam, De Boelelaan 1117, Amsterdam, The Netherlands.
- Amsterdam Institute for Infection and Immunity, Inflammatory Diseases, Amsterdam, The Netherlands.
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34
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Jeong S, Nam HM, Sung GY. Optimization of hair follicle spheroids for hair-on-a-chip. Biomater Sci 2024; 12:1693-1706. [PMID: 38372380 DOI: 10.1039/d3bm02012f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Currently, most models for hair follicle research have the limitation of not replicating some key features of the hair follicle microenvironment. To complement this, we transfected various factors for hair growth into dermal papilla cells (DPCs) by electroporation and cultured the spheroids with keratinocytes (KCs). We optimized the cell number and culture period for applying spheroids to hair-on-a-chip. Furthermore, we investigated the expression of hair growth factors in spheroids depending on the presence or absence of human umbilical vein endothelial cells (HUVECs) and transfection. In spheroids in which DPCs, KCs, and HUVECs were co-cultured for 21 days, the expression of lymphoid enhancer factor 1 (LEF1), T-cell factor 1 (TCF1), and keratin 25 (K25) in the center of the spheroid, the expression of keratin 17 (K17) on the outer surface of the spheroid, and the shape of hair extending outward from the spheroid surface were observed. From these results, it is expected that a hair-on-a-chip experiment in which short-term cultured TKH spheroids are injected into the dermis and co-cultured with KC will enable the production of full-thickness skin equivalents containing hair in vitro without transplantation into animals.
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Affiliation(s)
- Subin Jeong
- Interdisciplinary Program of Nano-Medical Device Engineering, Hallym University, Chuncheon 24252, Republic of Korea.
- Integrative Materials Research Institute, Hallym University, Chuncheon 24252, Republic of Korea
| | - Hyeon-Min Nam
- Interdisciplinary Program of Nano-Medical Device Engineering, Hallym University, Chuncheon 24252, Republic of Korea.
- Integrative Materials Research Institute, Hallym University, Chuncheon 24252, Republic of Korea
| | - Gun Yong Sung
- Interdisciplinary Program of Nano-Medical Device Engineering, Hallym University, Chuncheon 24252, Republic of Korea.
- Integrative Materials Research Institute, Hallym University, Chuncheon 24252, Republic of Korea
- Major in Materials Science and Engineering, Hallym University, Chuncheon 24252, Republic of Korea
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35
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Kondej K, Zawrzykraj M, Czerwiec K, Deptuła M, Tymińska A, Pikuła M. Bioengineering Skin Substitutes for Wound Management-Perspectives and Challenges. Int J Mol Sci 2024; 25:3702. [PMID: 38612513 PMCID: PMC11011330 DOI: 10.3390/ijms25073702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 03/22/2024] [Accepted: 03/23/2024] [Indexed: 04/14/2024] Open
Abstract
Non-healing wounds and skin losses constitute significant challenges for modern medicine and pharmacology. Conventional methods of wound treatment are effective in basic healthcare; however, they are insufficient in managing chronic wound and large skin defects, so novel, alternative methods of therapy are sought. Among the potentially innovative procedures, the use of skin substitutes may be a promising therapeutic method. Skin substitutes are a heterogeneous group of materials that are used to heal and close wounds and temporarily or permanently fulfill the functions of the skin. Classification can be based on the structure or type (biological and synthetic). Simple constructs (class I) have been widely researched over the years, and can be used in burns and ulcers. More complex substitutes (class II and III) are still studied, but these may be utilized in patients with deep skin defects. In addition, 3D bioprinting is a rapidly developing method used to create advanced skin constructs and their appendages. The aforementioned therapies represent an opportunity for treating patients with diabetic foot ulcers or deep skin burns. Despite these significant developments, further clinical trials are needed to allow the use skin substitutes in the personalized treatment of chronic wounds.
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Affiliation(s)
- Karolina Kondej
- Department of Plastic Surgery, Medical University of Gdansk, 80-214 Gdansk, Poland;
| | - Małgorzata Zawrzykraj
- Department of Clinical Anatomy, Medical University of Gdansk, 80-211 Gdansk, Poland; (M.Z.); (K.C.)
| | - Katarzyna Czerwiec
- Department of Clinical Anatomy, Medical University of Gdansk, 80-211 Gdansk, Poland; (M.Z.); (K.C.)
| | - Milena Deptuła
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, 80-211 Gdansk, Poland; (M.D.); (A.T.)
| | - Agata Tymińska
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, 80-211 Gdansk, Poland; (M.D.); (A.T.)
| | - Michał Pikuła
- Laboratory of Tissue Engineering and Regenerative Medicine, Department of Embryology, Medical University of Gdansk, 80-211 Gdansk, Poland; (M.D.); (A.T.)
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36
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Chen Y, Fu D, Wu X, Zhang Y, Chen Y, Zhou Y, Lu M, Liu Q, Huang J. Biomimetic biphasic microsphere preparation based on the thermodynamic incompatibility of glycosaminoglycan with gelatin methacrylate for hair regeneration. Int J Biol Macromol 2024; 261:129934. [PMID: 38311145 DOI: 10.1016/j.ijbiomac.2024.129934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/28/2024] [Accepted: 01/31/2024] [Indexed: 02/08/2024]
Abstract
Hair follicle (HF) tissue engineering is promising for hair loss treatment especially for androgenetic alopecia. Physiologically, the initiation of HF morphogenesis relies on the interactions between hair germ mesenchymal and epithelial layers. To simulate this intricate process, in this study, a co-flowing microfluidic-assisted technology was developed to produce dual aqueous microdroplets capturing growth factors and double-layer cells for subsequent use in hair regeneration. Microspheres, called G/HAD, were generated using glycosaminoglycan-based photo-crosslinkable biological macromolecule (HAD) shells and gelatin methacrylate (GelMA) cores to enclose mesenchymal cells (MSCs) and mouse epidermal cells (EPCs). The findings indicated that the glycosaminoglycan-based HAD shells display thermodynamic incompatibility with GelMA cores, resulting in the aqueous phase separation of G/HAD cell spheres. These G/HAD microspheres exhibited favorable characteristics, including sustained growth factor release and wet adhesion properties. After transplantation into the dorsal skin of BALB/c nude mice, G/HAD cell microspheres efficiently induced the regeneration of HFs. This approach enables the mass production of approximately 250 dual-layer microspheres per minute. Thus, this dual-layer microsphere fabrication method holds great potential in improving current hair regeneration techniques and can also be combined with other tissue engineering techniques for various regenerative purposes.
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Affiliation(s)
- Yangpeng Chen
- Department of Plastic and Aesthetic Surgery, Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Danlan Fu
- Department of Plastic and Aesthetic Surgery, Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Xiaoqi Wu
- Department of Urology and Andrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200001, China
| | - Yufan Zhang
- Department of Plastic and Aesthetic Surgery, Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Yuxin Chen
- Department of Plastic and Aesthetic Surgery, Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Yi Zhou
- Department of Plastic and Aesthetic Surgery, Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China
| | - Mujun Lu
- Department of Urology and Andrology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200001, China.
| | - Qifa Liu
- Department of Plastic and Aesthetic Surgery, Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China.
| | - Junfei Huang
- Department of Plastic and Aesthetic Surgery, Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, Guangdong 510515, China.
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37
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Kang Y, Yeo M, Derman ID, Ravnic DJ, Singh YP, Alioglu MA, Wu Y, Makkar J, Driskell RR, Ozbolat IT. Intraoperative bioprinting of human adipose-derived stem cells and extra-cellular matrix induces hair follicle-like downgrowths and adipose tissue formation during full-thickness craniomaxillofacial skin reconstruction. Bioact Mater 2024; 33:114-128. [PMID: 38024230 PMCID: PMC10665670 DOI: 10.1016/j.bioactmat.2023.10.034] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Revised: 10/31/2023] [Accepted: 10/31/2023] [Indexed: 12/01/2023] Open
Abstract
Craniomaxillofacial (CMF) reconstruction is a challenging clinical dilemma. It often necessitates skin replacement in the form of autologous graft or flap surgery, which differ from one another based on hypodermal/dermal content. Unfortunately, both approaches are plagued by scarring, poor cosmesis, inadequate restoration of native anatomy and hair, alopecia, donor site morbidity, and potential for failure. Therefore, new reconstructive approaches are warranted, and tissue engineered skin represents an exciting alternative. In this study, we demonstrated the reconstruction of CMF full-thickness skin defects using intraoperative bioprinting (IOB), which enabled the repair of defects via direct bioprinting of multiple layers of skin on immunodeficient rats in a surgical setting. Using a newly formulated patient-sourced allogenic bioink consisting of both human adipose-derived extracellular matrix (adECM) and stem cells (ADSCs), skin loss was reconstructed by precise deposition of the hypodermal and dermal components under three different sets of animal studies. adECM, even at a very low concentration such as 2 % or less, has shown to be bioprintable via droplet-based bioprinting and exhibited de novo adipogenic capabilities both in vitro and in vivo. Our findings demonstrate that the combinatorial delivery of adECM and ADSCs facilitated the reconstruction of three full-thickness skin defects, accomplishing near-complete wound closure within two weeks. More importantly, both hypodermal adipogenesis and downgrowth of hair follicle-like structures were achieved in this two-week time frame. Our approach illustrates the translational potential of using human-derived materials and IOB technologies for full-thickness skin loss.
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Affiliation(s)
- Youngnam Kang
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA
| | - Miji Yeo
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA
| | - Irem Deniz Derman
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA
| | - Dino J. Ravnic
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA
- Department of Surgery, College of Medicine, Penn State University, Hershey, PA, 17033, USA
| | - Yogendra Pratap Singh
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA
| | - Mecit Altan Alioglu
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA
| | - Yang Wu
- School of Mechanical Engineering and Automation, Harbin Institute of Technology, Shenzhen, 518055, China
| | - Jasson Makkar
- School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, WA, 99164, USA
| | - Ryan R. Driskell
- School of Molecular Biosciences, College of Veterinary Medicine, Washington State University, Pullman, WA, 99164, USA
| | - Ibrahim T. Ozbolat
- Engineering Science and Mechanics Department, Penn State University, University Park, PA, 16802, USA
- The Huck Institutes of the Life Sciences, Penn State University, University Park, PA, 16802, USA
- Department of Biomedical Engineering, Penn State University, University Park, PA, 16802, USA
- Materials Research Institute, Penn State University, University Park, PA, 16802, USA
- Department of Neurosurgery, Pennsylvania State College of Medicine, Hershey, PA, 17033, USA
- Penn State Cancer Institute, Penn State University, Hershey, PA, 17033, USA
- Department of Medical Oncology, Cukurova University, Adana, 01130, Turkey
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38
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Marinho PA, Jeong G, Shin SH, Kim SN, Choi H, Lee SH, Park BC, Hong YD, Kim HJ, Park WS. The development of an in vitrohuman hair follicle organoid with a complexity similar to that in vivo. Biomed Mater 2024; 19:025041. [PMID: 38324888 DOI: 10.1088/1748-605x/ad2707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Accepted: 02/07/2024] [Indexed: 02/09/2024]
Abstract
In vitrohair follicle (HF) models are currently limited toex vivoHF organ cultures (HFOCs) or 2D models that are of low availability and do not reproduce the architecture or behavior of the hair, leading to poor screening systems. To resolve this issue, we developed a technology for the construction of a humanin vitrohair construct based on the assemblage of different types of cells present in the hair organ. First, we demonstrated that epithelial cells, when isolatedin vitro, have similar genetic signatures regardless of their dissection site, and their trichogenic potential is dependent on the culture conditions. Then, using cell aggregation techniques, 3D spheres of dermal papilla (DP) were constructed, and subsequently, epithelial cells were added, enabling the production and organization of keratins in hair, similar to what is seenin vivo. These reconstructed tissues resulted in the following hair compartments: K71 (inner root-sheath), K85 (matrix region), K75 (companion layer), and vimentin (DP). Furthermore, the new hair model was able to elongate similarly toex vivoHFOC, resulting in a shaft-like shape several hundred micrometers in length. As expected, when the model was exposed to hair growth enhancers, such as ginseng extract, or inhibitors, such as TGF-B-1, significant effects similar to thosein vivowere observed. Moreover, when transplanted into skin biopsies, the new constructs showed signs of integration and hair bud generation. Owing to its simplicity and scalability, this model fully enables high throughput screening of molecules, which allows understanding of the mechanism by which new actives treat hair loss, finding optimal concentrations, and determining the synergy and antagonism among different raw materials. Therefore, this model could be a starting point for applying regenerative medicine approaches to treat hair loss.
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Affiliation(s)
| | - Gyusang Jeong
- AMOREPACIFIC Research and Innovation Center, Yongin-si, Republic of Korea
| | - Seung Hyun Shin
- AMOREPACIFIC Research and Innovation Center, Yongin-si, Republic of Korea
| | - Su Na Kim
- AMOREPACIFIC Research and Innovation Center, Yongin-si, Republic of Korea
| | - Hyeongwon Choi
- AMOREPACIFIC Research and Innovation Center, Yongin-si, Republic of Korea
| | - Sung Hoon Lee
- AMOREPACIFIC Research and Innovation Center, Yongin-si, Republic of Korea
| | - Byung Cheol Park
- Department of Dermatology, College of Medicine, Dankook University, Cheonan-si, Republic of Korea
| | - Yong Deog Hong
- AMOREPACIFIC Research and Innovation Center, Yongin-si, Republic of Korea
| | - Hyoung-June Kim
- AMOREPACIFIC Research and Innovation Center, Yongin-si, Republic of Korea
| | - Won-Seok Park
- AMOREPACIFIC Research and Innovation Center, Yongin-si, Republic of Korea
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39
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Liu D, Xu Q, Meng X, Liu X, Liu J. Status of research on the development and regeneration of hair follicles. Int J Med Sci 2024; 21:80-94. [PMID: 38164355 PMCID: PMC10750333 DOI: 10.7150/ijms.88508] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Accepted: 10/17/2023] [Indexed: 01/03/2024] Open
Abstract
Hair loss, or alopecia, is a prevalent condition in modern society that imposes substantial mental and psychological burden on individuals. The types of hair loss, include androgenetic alopecia, alopecia areata, and telogen effluvium; of them, androgenetic alopecia is the most common condition. Traditional treatment modalities mainly involve medical options, such as minoxidil, finasteride and surgical interventions, such as hair transplantation. However, these treatments still have many limitations. Therefore, exploring the pathogenesis of hair loss, specifically focusing on the development and regeneration of hair follicles (HFs), and developing new strategies for promoting hair regrowth are essential. Some emerging therapies for hair loss have gained prominence; these therapies include low-level laser therapy, micro needling, fractional radio frequency, platelet-rich plasma, and stem cell therapy. The aforementioned therapeutic strategies appear promising for hair loss management. In this review, we investigated the mechanisms underlying HF development and regeneration. For this, we studied the structure, development, cycle, and cellular function of HFs. In addition, we analyzed the symptoms, types, and causes of hair loss as well as its current conventional treatments. Our study provides an overview of the most effective regenerative medicine-based therapies for hair loss.
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Affiliation(s)
| | | | | | - Xiaomei Liu
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, China
| | - Jinyu Liu
- Department of Toxicology, School of Public Health, Jilin University, Changchun 130021, China
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40
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Kim MJ, Ahn HJ, Kong D, Lee S, Kim DH, Kang KS. Modeling of solar UV-induced photodamage on the hair follicles in human skin organoids. J Tissue Eng 2024; 15:20417314241248753. [PMID: 38725732 PMCID: PMC11080775 DOI: 10.1177/20417314241248753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 04/06/2024] [Indexed: 05/12/2024] Open
Abstract
Solar ultraviolet (sUV) exposure is known to cause skin damage. However, the pathological mechanisms of sUV on hair follicles have not been extensively explored. Here, we established a model of sUV-exposed skin and its appendages using human induced pluripotent stem cell-derived skin organoids with planar morphology containing hair follicles. Our model closely recapitulated several symptoms of photodamage, including skin barrier disruption, extracellular matrix degradation, and inflammatory response. Specifically, sUV induced structural damage and catagenic transition in hair follicles. As a potential therapeutic agent for hair follicles, we applied exosomes isolated from human umbilical cord blood-derived mesenchymal stem cells to sUV-exposed organoids. As a result, exosomes effectively alleviated inflammatory responses by inhibiting NF-κB activation, thereby suppressing structural damage and promoting hair follicle regeneration. Ultimately, our model provided a valuable platform to mimic skin diseases, particularly those involving hair follicles, and to evaluate the efficacy and underlying mechanisms of potential therapeutics.
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Affiliation(s)
- Min-Ji Kim
- Adult Stem Cell Research Center and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Hee-Jin Ahn
- Cytotherapy R&D Center, PRIMORIS THERAPEUTICS CO., LTD., Gwangmyeong-si, Gyeonggi-do, Republic of Korea
| | - Dasom Kong
- Adult Stem Cell Research Center and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
| | - Seunghee Lee
- Stem Cell and Regenerative Bioengineering Institute, Global R&D Center, Kangstem Biotech Co., Ltd., Geumcheon-gu, Seoul, Republic of Korea
| | - Da-Hyun Kim
- Adult Stem Cell Research Center and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
- Department of Biotechnology, Sungshin Women’s University, Seoul, Republic of Korea
| | - Kyung-Sun Kang
- Adult Stem Cell Research Center and Research Institute for Veterinary Science, College of Veterinary Medicine, Seoul National University, Seoul, Republic of Korea
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41
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Lee S, Kim N, Kim SH, Um SJ, Park JY. Biological and mechanical influence of three-dimensional microenvironment formed in microwell on multicellular spheroids composed of heterogeneous hair follicle stem cells. Sci Rep 2023; 13:22742. [PMID: 38123607 PMCID: PMC10733424 DOI: 10.1038/s41598-023-49510-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023] Open
Abstract
Hair loss caused by malfunction of the hair follicle stem cells (HFSCs) and physical damage to the skin is difficult to recover from naturally. To overcome these obstacles to hair follicle (HF) regeneration, it is essential to understand the three-dimensional (3D) microenvironment and interactions of various cells within the HFs. Therefore, 3D cell culture technology has been used in HF regeneration research; specifically, multicellular spheroids have been generally adapted to mimic the 3D volumetric structure of the HF. In this study, we culture HF-derived cells, which are mainly composed of HFSCs, in the form of 3D spheroids using a microwell array and discuss the effects of the 3D cellular environment on HF morphogenesis by expression measurements of Sonic hedgehog signaling and stem cell markers in the HF spheroids. Additionally, the influences of microwell depth on HF spheroid formation and biological conditions were investigated. The biomolecular diffusion and convective flow in the microwell were predicted using computational fluid dynamics, which allows analysis of the physical stimulations occurring on the spheroid at the micro-scale. Although a simple experimental method using the microwell array was adopted in this study, the results provide fundamental insights into the physiological phenomena of HFs in the 3D microenvironment, and the numerical analysis is expected to shed light on the investigation of the geometric parameters of the microwell system.
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Affiliation(s)
- Seungjin Lee
- Department of Mechanical Engineering, Graduate School, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea
| | - Nackhyoung Kim
- Department of Integrative Bioscience and Biotechnology, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, Republic of Korea
| | - Sung-Hwan Kim
- Cellsmith Inc., 38 Pungseong-ro, Gangdong-gu, Seoul, 05393, Republic of Korea
| | - Soo-Jong Um
- Department of Integrative Bioscience and Biotechnology, Sejong University, 209 Neungdong-ro, Gwangjin-gu, Seoul, 05006, Republic of Korea.
| | - Joong Yull Park
- Department of Mechanical Engineering, Graduate School, Chung-Ang University, 84 Heukseok-ro, Dongjak-gu, Seoul, 06974, Republic of Korea.
- Department of Intelligent Energy and Industry, Graduate School, Chung-Ang University, Seoul, 06974, Republic of Korea.
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Roets B. Potential application of PBM use in hair follicle organoid culture for the treatment of androgenic alopecia. Mater Today Bio 2023; 23:100851. [PMID: 38024838 PMCID: PMC10663892 DOI: 10.1016/j.mtbio.2023.100851] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 10/26/2023] [Accepted: 10/28/2023] [Indexed: 12/01/2023] Open
Abstract
Androgenic alopecia is a hereditary condition of pattern hair loss in genetically susceptible individuals. The condition has a significant impact on an individual's quality of life, with decreased self-esteem, body image issues and depression being the main effects. Various conventional treatment options, such as minoxidil, finasteride and herbal supplements, aim to slow down hair loss and promote hair growth. However, due to the chronic nature of the condition the financial cost of treatment for androgenic alopecia is very high and conventional treatment options are not universally effective and come with a host of side effects. Therefore, to address the limitations of current treatment options a novel regenerative treatment option is required. One promising approach is organoids, organoids are 3D cell aggregates with similar structures and functions to a target organ. Hair follicle organoids can be developed in vitro. However, the main challenges are to maintain the cell populations within the organoid in a proliferative and inductive state, as well as to promote the maturation of organoids. Photobiomodulation is a form of light therapy that stimulates endogenous chromophores. PBM has been shown to improve cell viability, proliferation, migration, differentiation and gene expression in dermal papilla cells and hair follicle stem cells. Therefore, photobiomodulation is a potential adjunct to hair follicle organoid culture to improve the proliferation and inductive capacity of cells.
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Affiliation(s)
- Brendon Roets
- Biomedical Science, Faculty of Health Science, University of Johannesburg, Johannesburg, 2028, South Africa
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43
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Correia M, Lopes J, Lopes D, Melero A, Makvandi P, Veiga F, Coelho JFJ, Fonseca AC, Paiva-Santos AC. Nanotechnology-based techniques for hair follicle regeneration. Biomaterials 2023; 302:122348. [PMID: 37866013 DOI: 10.1016/j.biomaterials.2023.122348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/26/2023] [Accepted: 10/05/2023] [Indexed: 10/24/2023]
Abstract
The hair follicle (HF) is a multicellular complex structure of the skin that contains a reservoir of multipotent stem cells. Traditional hair repair methods such as drug therapies, hair transplantation, and stem cell therapy have limitations. Advances in nanotechnology offer new approaches for HF regeneration, including controlled drug release and HF-specific targeting. Until recently, embryogenesis was thought to be the only mechanism for forming hair follicles. However, in recent years, the phenomenon of wound-induced hair neogenesis (WIHN) or de novo HF regeneration has gained attention as it can occur under certain conditions in wound beds. This review covers HF-specific targeting strategies, with particular emphasis on currently used nanotechnology-based strategies for both hair loss-related diseases and HF regeneration. HF regeneration is discussed in several modalities: modulation of the hair cycle, stimulation of progenitor cells and signaling pathways, tissue engineering, WIHN, and gene therapy. The HF has been identified as an ideal target for nanotechnology-based strategies for hair regeneration. However, some regulatory challenges may delay the development of HF regeneration nanotechnology based-strategies, which will be lastly discussed.
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Affiliation(s)
- Mafalda Correia
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal
| | - Joana Lopes
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal
| | - Daniela Lopes
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal
| | - Ana Melero
- Department of Pharmacy and Pharmaceutical Technology and Parasitology, University of Valencia (Campus de Burjassot), Av. Vicente A. Estelles s/n, 46100, Burjassot, Valencia, Spain
| | - Pooyan Makvandi
- The Quzhou Affiliated Hospital of Wenzhou Medical University, Quzhou People's Hospital, 324000, Quzhou, Zhejiang, China
| | - Francisco Veiga
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal
| | - Jorge F J Coelho
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, 3030-790, Coimbra, Portugal
| | - Ana C Fonseca
- CEMMPRE - Department of Chemical Engineering, University of Coimbra, 3030-790, Coimbra, Portugal.
| | - Ana Cláudia Paiva-Santos
- Department of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal; REQUIMTE/LAQV, Group of Pharmaceutical Technology, Faculty of Pharmacy of the University of Coimbra, University of Coimbra, Pólo das Ciências da Saúde, Azinhaga de Santa Comba, 3000-548, Coimbra, Portugal.
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44
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Motter Catarino C, Cigaran Schuck D, Dechiario L, Karande P. Incorporation of hair follicles in 3D bioprinted models of human skin. SCIENCE ADVANCES 2023; 9:eadg0297. [PMID: 37831765 PMCID: PMC10575578 DOI: 10.1126/sciadv.adg0297] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 09/12/2023] [Indexed: 10/15/2023]
Abstract
Current approaches fail to adequately introduce complex adnexal structures such as hair follicles within tissue engineered models of skin. Here, we report on the use of 3D bioprinting to incorporate these structures in engineered skin tissues. Spheroids, induced by printing dermal papilla cells (DPCs) and human umbilical vein cells (HUVECs), were precisely printed within a pregelled dermal layer containing fibroblasts. The resulting tissue developed hair follicle-like structures upon maturation, supported by migration of keratinocytes and melanocytes, and their morphology and composition grossly mimicked that of the native skin tissue. Reconstructed skin models with increased complexity that better mimic native adnexal structures can have a substantial impact on regenerative medicine as grafts and efficacy models to test the safety of chemical compounds.
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Affiliation(s)
- Carolina Motter Catarino
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
- Grupo Boticário, Curitiba, Paraná, Brazil
| | | | - Lexi Dechiario
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA
| | - Pankaj Karande
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, Troy, NY, USA
- Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
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Kang Y, Yeo M, Derman ID, Ravnic DJ, Singh YP, Alioglu MA, Wu Y, Makkar J, Driskell RR, Ozbolat IT. Intraoperative Bioprinting of Human Adipose-derived Stem cells and Extra-cellular Matrix Induces Hair Follicle-Like Downgrowths and Adipose Tissue Formation during Full-thickness Craniomaxillofacial Skin Reconstruction. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.03.560695. [PMID: 37873077 PMCID: PMC10592950 DOI: 10.1101/2023.10.03.560695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
Craniomaxillofacial (CMF) reconstruction is a challenging clinical dilemma. It often necessitates skin replacement in the form of autologous graft or flap surgery, which differ from one another based on hypodermal/dermal content. Unfortunately, both approaches are plagued by scarring, poor cosmesis, inadequate restoration of native anatomy and hair, alopecia, donor site morbidity, and potential for failure. Therefore, new reconstructive approaches are warranted, and tissue engineered skin represents an exciting alternative. In this study, we demonstrated the reconstruction of CMF full-thickness skin defects using intraoperative bioprinting (IOB), which enabled the repair of defects via direct bioprinting of multiple layers of skin on immunodeficient rats in a surgical setting. Using a newly formulated patient-sourced allogenic bioink consisting of both human adipose-derived extracellular matrix (adECM) and stem cells (ADSCs), skin loss was reconstructed by precise deposition of the hypodermal and dermal components under three different sets of animal studies. adECM, even at a very low concentration such as 2% or less, has shown to be bioprintable via droplet-based bioprinting and exhibited de novo adipogenic capabilities both in vitro and in vivo . Our findings demonstrate that the combinatorial delivery of adECM and ADSCs facilitated the reconstruction of three full-thickness skin defects, accomplishing near-complete wound closure within two weeks. More importantly, both hypodermal adipogenesis and downgrowth of hair follicle-like structures were achieved in this two-week time frame. Our approach illustrates the translational potential of using human-derived materials and IOB technologies for full-thickness skin loss.
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46
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Jorgensen AM, Gorkun A, Mahajan N, Willson K, Clouse C, Jeong CG, Varkey M, Wu M, Walker SJ, Molnar JA, Murphy SV, Lee SJ, Yoo JJ, Soker S, Atala A. Multicellular bioprinted skin facilitates human-like skin architecture in vivo. Sci Transl Med 2023; 15:eadf7547. [PMID: 37792956 DOI: 10.1126/scitranslmed.adf7547] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Accepted: 09/15/2023] [Indexed: 10/06/2023]
Abstract
Bioprinting is a promising alternative method to generate skin substitutes because it can replicate the structural organization of the skin into biomimetic layers in vitro. In this study, six primary human skin cell types were used to bioprint a trilayer skin construct consisting of epidermis, dermis, and hypodermis. Transplantation of the bioprinted skin with human cells onto full-thickness wounds of nu/nu mice promoted rapid vascularization and formation of epidermal rete ridges analogous to the native human epidermis, with a normal-looking extracellular matrix. Cell-specific staining confirmed the integration of the implanted cells into the regenerated skin. Using a similar approach, a 5 centimeter-by-5 centimeter bioprinted autologous porcine skin graft was transplanted onto full-thickness wounds in a porcine excisional wound model. The bioprinted skin graft improved epithelialization, reduced skin contraction, and supported normal collagen organization with reduced fibrosis. Differential gene expression demonstrated pro-remodeling protease activity in wounds transplanted with bioprinted autologous skin grafts. These results demonstrate that bioprinted skin can support skin regeneration to allow for nonfibrotic wound healing and suggest that the skin bioprinting technology may be applicable for human clinical use.
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Affiliation(s)
- Adam M Jorgensen
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Anastasiya Gorkun
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Naresh Mahajan
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Kelsey Willson
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Cara Clouse
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Claire G Jeong
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Mathew Varkey
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Mingsong Wu
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Stephen J Walker
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Joseph A Molnar
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
- Department of Plastic and Reconstructive Surgery, Atrium Health Wake Forest Baptist Hospital, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Sean V Murphy
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Sang Jin Lee
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - James J Yoo
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Shay Soker
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
| | - Anthony Atala
- Wake Forest Institute for Regenerative Medicine, Wake Forest School of Medicine, Medical Center Boulevard, Winston-Salem, NC 27157, USA
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Raktoe R, Kwee AKAL, Rietveld M, Marsidi N, Genders R, Quint K, van Doorn R, van Zuijlen P, Ghalbzouri AEL. Mimicking fat grafting of fibrotic scars using 3D-organotypic skin cultures. Exp Dermatol 2023; 32:1752-1762. [PMID: 37515391 DOI: 10.1111/exd.14893] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2022] [Revised: 07/10/2023] [Accepted: 07/17/2023] [Indexed: 07/30/2023]
Abstract
Wound healing of deep burn injuries is often accompanied by severe scarring, such as hypertrophic scar (HTS) formation. In severe burn wounds, where the subcutis is also damaged, the scars adhere to structures underneath, resulting in stiffness of the scar and impaired motion. Over the recent years, a promising solution has emerged: autologous fat grafting, also known as lipofilling. Previous clinical reports have shown that the anti-fibrotic effect has been attributed to the presence of adipose-derived stromal cells (ADSC). In the proposed study, we aim to investigate the effect of fat grafting in 3D organotypic skin cultures mimicking an HTS-like environment. To this end, organotypic skin cultures were embedded with normal skin fibroblasts (NF) or HTS-derived fibroblasts with or without incorporation of human adipose subcutaneous tissue (ADT) and one part was thermally wounded to examine their effect on epithelialization. The developed skin cultures were analysed on morphology and protein level. Analysis revealed that ADT-containing organotypic skin cultures comprise an improved epidermal homeostasis, and a fully formed basement membrane, similar to native human skin (NHS). Furthermore, the addition of ADT significantly reduced myofibroblast presence, which indicates its anti-fibrotic effect. Finally, re-epithelialization measurements showed that ADT reduced re-epithelialization in skin cultures embedded with NFs, whereas HTS-fibroblast-embedded skin cultures showed complete wound closure. In conclusion, we succeeded in developing a 3D organotypic HTS-skin model incorporated with subcutaneous tissue that allows further investigation on the molecular mechanism of fat grafting.
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Affiliation(s)
- Rajiv Raktoe
- Department of Dermatology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands
| | - Anastasia K A L Kwee
- Department of Dermatology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands
| | - Marion Rietveld
- Department of Dermatology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands
| | - Nick Marsidi
- Department of Dermatology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands
| | - Roel Genders
- Department of Dermatology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands
- Department of Dermatology, Roosevelt Clinics, Leiden, The Netherlands
| | - Koen Quint
- Department of Dermatology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands
- Department of Dermatology, Roosevelt Clinics, Leiden, The Netherlands
| | - Remco van Doorn
- Department of Dermatology, Leiden University Medical Centre (LUMC), Leiden, The Netherlands
| | - Paul van Zuijlen
- Burn Centre, Red Cross Hospital, Beverwijk, The Netherlands
- Department of Plastic and Reconstructive Surgery, Red Cross Hospital, Beverwijk, The Netherlands
- Department of Plastic, Reconstructive and Hand Surgery, Amsterdam Movement Sciences, Amsterdam UMC (location VUmc), Amsterdam, The Netherlands
- Pediatric Surgical Centre, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam, Vrije Universiteit, Amsterdam, The Netherlands
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Balavigneswaran CK, Selvaraj S, Vasudha TK, Iniyan S, Muthuvijayan V. Tissue engineered skin substitutes: A comprehensive review of basic design, fabrication using 3D printing, recent advances and challenges. BIOMATERIALS ADVANCES 2023; 153:213570. [PMID: 37540939 DOI: 10.1016/j.bioadv.2023.213570] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 07/08/2023] [Accepted: 07/25/2023] [Indexed: 08/06/2023]
Abstract
The multi-layered skin structure includes the epidermis, dermis and hypodermis, which forms a sophisticated tissue composed of extracellular matrix (ECM). The wound repair is a well-orchestrated process when the skin is injured. However, this natural wound repair will be ineffective for large surface area wounds. Autografts-based treatment is efficient but, additional pain and secondary healing of the patient limits its successful application. Therefore, there is a substantial need for fabricating tissue-engineered skin constructs. The development of a successful skin graft requires a fundamental understanding of the natural skin and its healing process, as well as design criteria for selecting a biopolymer and an appropriate fabrication technique. Further, the fabrication of an appropriate skin graft needs to meet physicochemical, mechanical, and biological properties equivalent to the natural skin. Advanced 3D bioprinting provides spatial control of the placement of functional components, such as biopolymers with living cells, which can satisfy the prerequisites for the preparation of an ideal skin graft. In this view, here we elaborate on the basic design requirements, constraints involved in the fabrication of skin graft and choice of ink, the probable solution by 3D bioprinting technique, as well as their latest advancements, challenges, and prospects.
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Affiliation(s)
- Chelladurai Karthikeyan Balavigneswaran
- Tissue Engineering and Biomaterials Laboratory, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India.
| | - Sowmya Selvaraj
- Tissue Engineering and Biomaterials Laboratory, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - T K Vasudha
- Tissue Engineering and Biomaterials Laboratory, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Saravanakumar Iniyan
- Tissue Engineering and Biomaterials Laboratory, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Vignesh Muthuvijayan
- Tissue Engineering and Biomaterials Laboratory, Department of Biotechnology, Bhupat and Jyoti Mehta School of Biosciences, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India.
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49
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Kang MS, Park TE, Jo HJ, Kang MS, Lee SB, Hong SW, Kim KS, Han DW. Recent Trends in Macromolecule-Based Approaches for Hair Loss Treatment. Macromol Biosci 2023; 23:e2300148. [PMID: 37245081 DOI: 10.1002/mabi.202300148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/21/2023] [Indexed: 05/29/2023]
Abstract
Macromolecules are large, complex molecules composed of smaller subunits known as monomers. The four primary categories of macromolecules found in living organisms are carbohydrates, lipids, proteins, and nucleic acids; they also encompass a broad range of natural and synthetic polymers. Recent studies have shown that biologically active macromolecules can help regenerate hair, providing a potential solution for current hair regeneration therapies. This review examines the latest developments in the use of macromolecules for the treatment of hair loss. The fundamental principles of hair follicle (HF) morphogenesis, hair shaft (HS) development, hair cycle regulation, and alopecia have been introduced. Microneedle (MN) and nanoparticle (NP) delivery systems are innovative treatments for hair loss. Additionally, the application of macromolecule-based tissue-engineered scaffolds for the in vitro and in vivo neogenesis of HFs is discussed. Furthermore, a new research direction is explored wherein artificial skin platforms are adopted as a promising screening method for hair loss treatment drugs. Through these multifaceted approaches, promising aspects of macromolecules for future hair loss treatments are identified.
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Affiliation(s)
- Moon Sung Kang
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Tae Eon Park
- School of Chemical Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Hyo Jung Jo
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Min Seok Kang
- School of Chemical Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Su Bin Lee
- School of Chemical Engineering, Pusan National University, Busan, 46241, Republic of Korea
| | - Suck Won Hong
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46241, Republic of Korea
- Engineering Research Center for Color-Modulated Extra-Sensory Perception Technology, Pusan National University, Busan, 46241, Republic of Korea
| | - Ki Su Kim
- School of Chemical Engineering, Pusan National University, Busan, 46241, Republic of Korea
- Institute of Advanced Organic Materials, Pusan National University, Busan, 46241, Republic of Korea
| | - Dong-Wook Han
- Department of Cogno-Mechatronics Engineering, Pusan National University, Busan, 46241, Republic of Korea
- BIO-IT Fusion Technology Research Institute, Pusan National University, Busan, 46241, Republic of Korea
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Costa S, Vilas-Boas V, Lebre F, Granjeiro JM, Catarino CM, Moreira Teixeira L, Loskill P, Alfaro-Moreno E, Ribeiro AR. Microfluidic-based skin-on-chip systems for safety assessment of nanomaterials. Trends Biotechnol 2023; 41:1282-1298. [PMID: 37419838 DOI: 10.1016/j.tibtech.2023.05.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 05/07/2023] [Accepted: 05/26/2023] [Indexed: 07/09/2023]
Abstract
The skin is the body's largest organ, continuously exposed to and affected by natural and anthropogenic nanomaterials (materials with external and internal dimensions in the nanoscale range). This broad spectrum of insults gives rise to irreversible health effects (from skin corrosion to cancer). Organ-on-chip systems can recapitulate skin physiology with high fidelity and potentially revolutionize the safety assessment of nanomaterials. Here, we review current advances in skin-on-chip models and their potential to elucidate biological mechanisms. Further, strategies are discussed to recapitulate skin physiology on-chip, improving control over nanomaterials exposure and transport across cells. Finally, we highlight future opportunities and challenges from design and fabrication to acceptance by regulatory bodies and industry.
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Affiliation(s)
- S Costa
- Nanosafety Group, International Iberian Nanotechnology Laboratory, Braga, Portugal
| | - V Vilas-Boas
- Nanosafety Group, International Iberian Nanotechnology Laboratory, Braga, Portugal
| | - F Lebre
- Nanosafety Group, International Iberian Nanotechnology Laboratory, Braga, Portugal
| | - J M Granjeiro
- Biology Coordination, National Institute of Metrology Quality and Technology (INMETRO), Rio de Janeiro, Brazil
| | - C M Catarino
- Product Safety Management- Quality, Excellence, and Care, Grupo Boticário, Paraná, Brazil
| | - L Moreira Teixeira
- Department of Advanced Organ bioengineering and Therapeutics, Technical Medical Centre, University of Twente, Enschede, The Netherlands
| | - P Loskill
- 3R-Center for In vitro Models and Alternatives to Animal Testing, Tübingen, Germany
| | - E Alfaro-Moreno
- Nanosafety Group, International Iberian Nanotechnology Laboratory, Braga, Portugal
| | - A R Ribeiro
- Nanosafety Group, International Iberian Nanotechnology Laboratory, Braga, Portugal.
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