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Dohle E, Schmeinck L, Parkhoo K, Sader R, Ghanaati S. Platelet rich fibrin as a bioactive matrix with proosteogenic and proangiogenic properties on human healthy primary cells in vitro. Platelets 2024; 35:2316744. [PMID: 38390838 DOI: 10.1080/09537104.2024.2316744] [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: 12/06/2023] [Accepted: 01/04/2024] [Indexed: 02/24/2024]
Abstract
Blood concentrates like platelet rich fibrin (PRF) have been established as a potential autologous source of cells and growth factors with regenerative properties in the field of dentistry and regenerative medicine. To further analyze the effect of PRF on bone tissue regeneration, this study investigated the influence of liquid PRF matrices on human healthy primary osteoblasts (pOB) and co-cultures composed of pOB and human dermal vascular endothelial cells (HDMEC) as in vitro model for bone tissue regeneration. Special attention was paid to the PRF mediated influence on osteoblastic differentiation and angiogenesis. Based on the low-speed centrifugation concept, cells were treated indirectly with PRF prepared with a low (44 g) and high relative centrifugal force (710 g) before the PRF mediated effect on osteoblast proliferation and differentiation was assessed via gene and protein expression analyses and immunofluorescence. The results revealed a PRF-mediated positive effect on osteogenic proliferation and differentiation accompanied by increased concentration of osteogenic growth factors and upregulated expression of osteogenic differentiation factors. Furthermore, it could be shown that PRF treatment resulted in an increased formation of angiogenic structures in a bone tissue mimic co-culture of endothelial cells and osteoblasts induced by the PRF mediated increased release of proangiogenic growth factors. The effects on osteogenic proliferation, differentiation and vascularization were more evident when low RCF PRF was applied to the cells. In conclusion, PRF possess proosteogenic, potentially osteoconductive as well as proangiogenic properties, making it a beneficial tool for bone tissue regeneration.
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Affiliation(s)
- Eva Dohle
- FORM, Frankfurt Orofacial Regenerative Medicine, Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Johann Wolfgang Goethe University, Frankfurt, Germany
| | - Lena Schmeinck
- FORM, Frankfurt Orofacial Regenerative Medicine, Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Johann Wolfgang Goethe University, Frankfurt, Germany
| | - Kamelia Parkhoo
- FORM, Frankfurt Orofacial Regenerative Medicine, Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Johann Wolfgang Goethe University, Frankfurt, Germany
| | - Robert Sader
- FORM, Frankfurt Orofacial Regenerative Medicine, Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Johann Wolfgang Goethe University, Frankfurt, Germany
| | - Shahram Ghanaati
- FORM, Frankfurt Orofacial Regenerative Medicine, Department for Oral, Cranio-Maxillofacial and Facial Plastic Surgery, Medical Center of the Johann Wolfgang Goethe University, Frankfurt, Germany
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Das M, Mondal S, Ghosh R, Darbar S, Roy L, Das AK, Pal D, Bhattacharya SS, Mallick AK, Kundu JK, Pal SK. A study of scarless wound healing through programmed inflammation, proliferation and maturation using a redox balancing nanogel. J Biomed Mater Res A 2024; 112:1594-1611. [PMID: 38545912 DOI: 10.1002/jbm.a.37712] [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: 01/10/2024] [Revised: 03/15/2024] [Accepted: 03/19/2024] [Indexed: 07/12/2024]
Abstract
In the study, we have shown the efficacy of an indigenously developed redox balancing chitosan gel with impregnated citrate capped Mn3O4 nanoparticles (nanogel). Application of the nanogel on a wound of preclinical mice model shows role of various signaling molecules and growth factors, and involvement of reactive oxygen species (ROS) at every stage, namely hemostasis, inflammation, and proliferation leading to complete maturation for the scarless wound healing. While in vitro characterization of nanogel using SEM, EDAX, and optical spectroscopy reveals pH regulated redox buffering capacity, in vivo preclinical studies on Swiss albino involving IL-12, IFN-γ, and α-SMA signaling molecules and detailed histopathological investigation and angiogenesis on every stage elucidate role of redox buffering for the complete wound healing process.
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Affiliation(s)
- Monojit Das
- Department of Zoology, Vidyasagar University, Midnapore, India
- Department of Zoology, Uluberia College, University of Calcutta, Howrah, India
| | - Susmita Mondal
- Department of Chemical, and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata, India
| | - Ria Ghosh
- Department of Chemical, and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata, India
- Department of Biochemistry, University of Calcutta, Kolkata, India
| | - Soumendra Darbar
- Research and Development Division, Dey's Medical Stores (Mfg.) Ltd, Kolkata, India
| | - Lopamudra Roy
- Department of Applied Optics and Photonics, University of Calcutta, Kolkata, West Bengal, India
| | - Anjan Kumar Das
- Department of Pathology, Coochbehar Government Medical College and Hospital, India
| | - Debasish Pal
- Department of Zoology, Uluberia College, University of Calcutta, Howrah, India
| | | | - Asim Kumar Mallick
- Department of Pediatrics, Nil RatanSircar Medical College and Hospital, Kolkata, India
| | | | - Samir Kumar Pal
- Department of Zoology, Uluberia College, University of Calcutta, Howrah, India
- Department of Chemical, and Biological Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata, India
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Lusardi M, Belvedere R, Petrella A, Iervasi E, Ponassi M, Brullo C, Spallarossa A. Novel tetrasubstituted 5-Arylamino pyrazoles able to interfere with angiogenesis and Ca 2+ mobilization. Eur J Med Chem 2024; 276:116715. [PMID: 39083983 DOI: 10.1016/j.ejmech.2024.116715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2024] [Revised: 07/15/2024] [Accepted: 07/24/2024] [Indexed: 08/02/2024]
Abstract
In the last years, 5-pyrazolyl ureas and 5-aminopyrazoles have been investigated for their antiangiogenetic properties and their potential interaction with the ubiquitous Ca2+ binding protein Calreticulin. Based on the structure of the active compounds I and GeGe-3, novel 5-arylamino pyrazoles 2 and 3 were synthesized through a stepwise procedure. In MTT assays, all the new derivatives proved to be non-cytotoxic against eight different tumor cell lines, normal fibroblasts, and endothelial cells. Furthermore, selected derivatives showed relevant antiangiogenetic properties, resulting more effective than reference molecules I and GeGe-3 in inhibiting HUVEC endothelial tube formation. 5-Arylamino pyrazoles 2a and 2d were identified as the most interesting compounds and significantly prevented tube formation of tumor secretome-stimulated HUVEC. Furthermore, the two compounds inhibited HUVEC migration in wound healing assay and altered cell invasion capability. Additionally, 2a and 2d strongly affected Ca2+ mobilization and cytoskeletal organization of HUVEC cells, being as active as the reference compound GeGe-3. Differently from previous studies, molecular docking simulations suggested a poor affinity of 2a towards Calreticulin, one of the interacting partners of the lead compound GeGe-3. Collectively, this new amino-pyrazole library further extends the structure-activity relationships of the previously prepared derivatives and confirmed the biological attractiveness of this chemical scaffold as antiangiogenetic agents.
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Affiliation(s)
- Matteo Lusardi
- Department of Pharmacy, Section of Medicinal Chemistry, University of Genoa, Viale Benedetto XV 3, I-16132, Genova, Italy
| | - Raffaella Belvedere
- Department of Pharmacy, University of Salerno, Viale Giovanni Paolo II, 84084, Salerno, Italy
| | - Antonello Petrella
- Department of Pharmacy, University of Salerno, Viale Giovanni Paolo II, 84084, Salerno, Italy
| | - Erika Iervasi
- IRCCS Ospedale Policlinico San Martino, Proteomics and Mass Spectrometry Unit, Largo. R. Benzi, 10, 16132, Genova, Italy
| | - Marco Ponassi
- IRCCS Ospedale Policlinico San Martino, Proteomics and Mass Spectrometry Unit, Largo. R. Benzi, 10, 16132, Genova, Italy
| | - Chiara Brullo
- Department of Pharmacy, Section of Medicinal Chemistry, University of Genoa, Viale Benedetto XV 3, I-16132, Genova, Italy
| | - Andrea Spallarossa
- Department of Pharmacy, Section of Medicinal Chemistry, University of Genoa, Viale Benedetto XV 3, I-16132, Genova, Italy.
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Finch RH, Vitry G, Siew K, Walsh SB, Behesti A, Hardiman G, da Silveira WA. Spaceflight causes strain dependent gene expression changes associated with lipid and extracellular matrix dysregulation in the mouse kidney in vivo. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.13.584781. [PMID: 38559158 PMCID: PMC10979940 DOI: 10.1101/2024.03.13.584781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
To explore new worlds we must ensure humans can survive and thrive in the space environment. Incidence of kidney stones in astronauts is a major risk factor associated with long term missions, caused by increased blood calcium levels due to bone demineralisation triggered by microgravity and space radiation. Transcriptomic changes have been observed in other tissues during spaceflight, including the kidney. We analysed kidney transcriptome patterns in two different strains of mice flown on the International Space Station, C57BL/6J and BALB/c. Here we show a link between spaceflight and transcriptome patterns associated with dysregulation of lipid and extracellular matrix metabolism and altered transforming growth factor-beta signalling. A stronger response was seen in C57BL/6J mice than BALB/c. Genetic differences in hyaluronan metabolism between strains may confer protection against extracellular matrix remodelling through downregulation of epithelial-mesenchymal transition. We intend for our findings to contribute to development of new countermeasures against kidney disease in astronauts and people here on Earth.
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Poomrattanangoon S, Pissuwan D. Gold nanoparticles coated with collagen-I and their wound healing activity in human skin fibroblast cells. Heliyon 2024; 10:e33302. [PMID: 39035490 PMCID: PMC11259839 DOI: 10.1016/j.heliyon.2024.e33302] [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: 01/17/2024] [Revised: 05/16/2024] [Accepted: 06/18/2024] [Indexed: 07/23/2024] Open
Abstract
The slow wound healing process has become a major health problem. Gold nanoparticles (AuNPs) have been used in various biomedical applications because of their unique properties. Type I collagen (Collagen-I) is a protein and be the most abundant type of collagen. This type of collagen can help the surrounding structure to maintain its rigidity. In this study, we stabilized the surface of AuNPs using Collagen-I (Collagen-I@AuNPs) and investigated the effect of Collagen-I@AuNPs on wound healing. The evaluation of inflammatory cytokine secretion, which were interleukin-6 (IL-6) and tumour necrosis factor-alpha (TNF-α), was performed. We found that Collagen-I@AuNPs reduced the levels of IL-6 and TNF-α in scratched human skin fibroblast (HSF) cells. Furthermore, Collagen-I@AuNPs induced the expression of basic fibroblast growth factor (bFGF) and vascular endothelial growth factor (VEGF), which are key growth factors involved in wound healing. This results in enhanced wound closure. In addition, Collagen-I@AuNPs were not toxic to HSF cells and facilitated the cellular uptake of particles inside HSF cells. Therefore, Collagen-I@AuNPs is a promising candidate for wound healing enhancement.
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Affiliation(s)
- Sasiprapa Poomrattanangoon
- Materials Science and Engineering Program, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
- Nanobiotechnology and Nanobiomaterials Research Laboratory, School of Materials Science and Innovation, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Dakrong Pissuwan
- Materials Science and Engineering Program, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
- Nanobiotechnology and Nanobiomaterials Research Laboratory, School of Materials Science and Innovation, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
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Schmidt A, von Woedtke T, Weltmann KD, Bekeschus S. YAP/TAZ, beta-catenin, and TGFb pathway activation in medical plasma-induced wound healing in diabetic mice. J Adv Res 2024:S2090-1232(24)00270-4. [PMID: 38986808 DOI: 10.1016/j.jare.2024.07.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2024] [Revised: 06/15/2024] [Accepted: 07/06/2024] [Indexed: 07/12/2024] Open
Abstract
INTRODUCTION Hippo is a signaling pathway that is evolutionarily conserved and plays critical roles in wound healing and tissue regeneration. Disruption of the transcriptional activity of both Hippo-associated factors, the yes-associated protein (YAP), and the transcriptional co-activator with PDZ binding motif (TAZ) has been associated with cardiovascular diseases, fibrosis, and cancer. This makes the Hippo pathway an appealing target for therapeutic interventions. OBJECTIVES Prior research has indicated that medical gas plasma promotes wound healing by delivering a combination of reactive species directly to the affected areas. However, the involvement of YAP/TAZ and other signaling pathways in diabetic wound healing remains unexplored. METHODS To this extent, ear wounds were generated and treated with gas plasma in streptozotocin (STZ)-induced diabetic mice. Transcriptome profiling at two wound healing stages (days 9 and 20 post-wounding) was performed in female and male mice. Additionally, we employed gene and protein expression analyses, utilizing immunohistological and -chemical staining of various targets as well as quantitative PCR and Western blot analysis. RESULTS Gas plasma treatment accelerated healing by increasing re-epithelialization and modifying extracellular matrix components. Transcriptomic profiling charting the major alterations in gene expression following plasma treatment was followed by a validation of several targets using transcriptional and translational quantification as well as localization analyses. CONCLUSION Our study evaluated the cellular regulation of essential targets of the Hippo and related pathways such as YAP/TAZ, β-catenin, tumor growth factor β, and oxidative stress signaling after plasma treatment. The activation of genes, pathways, and their regulators is an attractive therapeutic aim for a therapeutic intervention in dermal skin repair in diabetic diseases using medical gas plasmas.
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Affiliation(s)
- Anke Schmidt
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology (INP), a member of the Leibniz Health Technologies Research Alliance, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany.
| | - Thomas von Woedtke
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology (INP), a member of the Leibniz Health Technologies Research Alliance, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany; Institute for Hygiene and Environmental Medicine, Greifswald University Medical Center, Sauerbruchstr., 17475 Greifswald, Germany
| | - Klaus-Dieter Weltmann
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology (INP), a member of the Leibniz Health Technologies Research Alliance, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany
| | - Sander Bekeschus
- ZIK plasmatis, Leibniz-Institute for Plasma Science and Technology (INP), a member of the Leibniz Health Technologies Research Alliance, Felix-Hausdorff-Str. 2, 17489 Greifswald, Germany; Department of Clinic and Policlinic for Dermatology and Venerology, Rostock University Medical Center, Strempelstr. 13, 18057 Rostock, Germany.
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Safwan Kamarazaman I, Sui Kiong L, Nik Hasan MK, Basherudin N, Mohd Kasim NA, Ali AA, Ramli S, Maniam S, Johari James R, Rojsitthisak P, Halim H. Baeckea frutescens L. Promotes wound healing by upregulating expression of TGF-β, IL-1 β, VEGF and MMP-2. Saudi Pharm J 2024; 32:102110. [PMID: 38817820 PMCID: PMC11135039 DOI: 10.1016/j.jsps.2024.102110] [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: 09/18/2023] [Accepted: 05/16/2024] [Indexed: 06/01/2024] Open
Abstract
Baeckea frutescens L. has been traditionally used for treating snakebites and is known to possess antifebrile and hemostatic properties. These properties are closely related to wound healing. This study aimed to evaluate the wound healing properties of B. frutescens leaves extract (BFLE) in vitro and in vivo. The in vitro study focused on proliferation, migration, and expression of TGF-β, IL-1β, VEGF, and MMP-2 genes and proteins. The in vivo study included excisional wound healing, histology, and tensile strength studies. The ethanolic extract of B. frutescens (BFLE) was tested for its effects on proliferation and migration using keratinocytes (HaCaT) and fibroblasts (BJ) cells. Gene and protein expression related to wound healing were analyzed using real-time PCR and Western blot assays. The wound healing properties of BFLE were evaluated in vivo using Wistar albino rats, focusing on excisional wound healing, histology, and tensile strength studies. The BFLE displayed significant proliferative and migratory effects on keratinocytes and fibroblasts cells, while upregulating the expression of TGF-β, IL-1β, VEGF, and MMP-2 genes and proteins. BFLE also exhibited significant wound healing effects on Wistar albino rats' excisional wounds and improved the overall tensile strength. The results suggest that BFLE has strong wound healing properties, as demonstrated by its ability to increase keratinocytes and fibroblasts proliferation and migration, upregulate genes and proteins involved in the wound healing process, and improve wound healing rates and tensile strength. The findings of this study provide important insights into the potential use of B. frutescens as a natural wound healing agent.
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Affiliation(s)
- Ihsan Safwan Kamarazaman
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA Selangor, Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor, Malaysia
- Natural Products Division, Forest Research Institute Malaysia (FRIM), 52109 Kepong, Selangor, Malaysia
- Faculty of Pharmacy, Universiti Teknologi MARA Selangor, Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor, Malaysia
| | - Ling Sui Kiong
- Natural Products Division, Forest Research Institute Malaysia (FRIM), 52109 Kepong, Selangor, Malaysia
| | - Mohd Kamal Nik Hasan
- Natural Products Division, Forest Research Institute Malaysia (FRIM), 52109 Kepong, Selangor, Malaysia
| | - Norlia Basherudin
- Natural Products Division, Forest Research Institute Malaysia (FRIM), 52109 Kepong, Selangor, Malaysia
| | - Nur Aini Mohd Kasim
- Natural Products Division, Forest Research Institute Malaysia (FRIM), 52109 Kepong, Selangor, Malaysia
| | - Aida Azlina Ali
- Faculty of Pharmacy, Universiti Teknologi MARA Selangor, Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor, Malaysia
| | - Salfarina Ramli
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA Selangor, Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor, Malaysia
- Faculty of Pharmacy, Universiti Teknologi MARA Selangor, Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor, Malaysia
| | - Sandra Maniam
- Department of Human Anatomy, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia (UPM), Serdang 43400, Malaysia
| | - Richard Johari James
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA Selangor, Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor, Malaysia
- Faculty of Pharmacy, Universiti Teknologi MARA Selangor, Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor, Malaysia
| | - Pornchai Rojsitthisak
- Center of Excellence in Natural Products for Ageing and Chronic Diseases, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
- Department of Food and Pharmaceutical Chemistry, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand
| | - Hasseri Halim
- Integrative Pharmacogenomics Institute (iPROMISE), Universiti Teknologi MARA Selangor, Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor, Malaysia
- Faculty of Pharmacy, Universiti Teknologi MARA Selangor, Puncak Alam Campus, 42300 Bandar Puncak Alam, Selangor, Malaysia
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Kartal B, Alimogullari E, Elçi P, Fatsa T, Ören S. The effects of Quercetin on wound healing in the human umbilical vein endothelial cells. Cell Tissue Bank 2024:10.1007/s10561-024-10144-1. [PMID: 38944663 DOI: 10.1007/s10561-024-10144-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Accepted: 06/12/2024] [Indexed: 07/01/2024]
Abstract
An injury that affects the integrity of the skin, either inside or externally, is called a wound. Damaged tissue is repaired by a set of cellular and molecular mechanisms known as wound healing. Quercetin, a naturally occurring flavonoid, may hasten the healing of wounds. The study's objective was to investigate any potential impacts of quercetin on the wound-healing process. Human umbilical vein endothelial cells (HUVECs) were treated to varying dose ranges of quercetin (5-320 nM) for 24 and 48 h. Cultured cells were evaluated by using the MTT analysis, wound scratch assay and vascular tube formation. Furthermore the gene expression of VEGF and FGF were evaluated by qRT-PCR to determine the effects of quercetin on angiogenezis and wound repair. Positive effects of quercetin on cellular viability were demonstrated by the MTT experiment. In HUVECs quercetin promoted tube formation, migration, and proliferation while also averting wound breakage. Moreover, quercetin increased the expression of the FGF and VEGF genes, which aid in the healing of wounds in HUVECs. Quercetin may be bioactive molecule that successfully speeds up wound healing by regulating the vasculogenezis and healing cells.
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Affiliation(s)
- Bahar Kartal
- Ankara Yıldırım Beyazıt Üniversitesi: Ankara Yildirim Beyazit Universitesi Ankara, Çankaya, Turkey.
| | - Ebru Alimogullari
- Ankara Yıldırım Beyazıt Üniversitesi: Ankara Yildirim Beyazit Universitesi Ankara, Çankaya, Turkey
| | - Pınar Elçi
- Ankara Yıldırım Beyazıt Üniversitesi: Ankara Yildirim Beyazit Universitesi Ankara, Çankaya, Turkey
| | - Tugba Fatsa
- Ankara Yıldırım Beyazıt Üniversitesi: Ankara Yildirim Beyazit Universitesi Ankara, Çankaya, Turkey
| | - Sema Ören
- Ankara Yıldırım Beyazıt Üniversitesi: Ankara Yildirim Beyazit Universitesi Ankara, Çankaya, Turkey
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Nwokoye PN, Abilez OJ. Bioengineering methods for vascularizing organoids. CELL REPORTS METHODS 2024; 4:100779. [PMID: 38759654 PMCID: PMC11228284 DOI: 10.1016/j.crmeth.2024.100779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 03/01/2024] [Accepted: 04/24/2024] [Indexed: 05/19/2024]
Abstract
Organoids, self-organizing three-dimensional (3D) structures derived from stem cells, offer unique advantages for studying organ development, modeling diseases, and screening potential therapeutics. However, their translational potential and ability to mimic complex in vivo functions are often hindered by the lack of an integrated vascular network. To address this critical limitation, bioengineering strategies are rapidly advancing to enable efficient vascularization of organoids. These methods encompass co-culturing organoids with various vascular cell types, co-culturing lineage-specific organoids with vascular organoids, co-differentiating stem cells into organ-specific and vascular lineages, using organoid-on-a-chip technology to integrate perfusable vasculature within organoids, and using 3D bioprinting to also create perfusable organoids. This review explores the field of organoid vascularization, examining the biological principles that inform bioengineering approaches. Additionally, this review envisions how the converging disciplines of stem cell biology, biomaterials, and advanced fabrication technologies will propel the creation of increasingly sophisticated organoid models, ultimately accelerating biomedical discoveries and innovations.
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Affiliation(s)
- Peter N Nwokoye
- Department of Medicine, Stanford University School of Medicine, Stanford, CA 94305, USA
| | - Oscar J Abilez
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA 94305, USA; Division of Pediatric CT Surgery, Stanford University, Stanford, CA 94305, USA; Cardiovascular Institute, Stanford University, Stanford, CA 94305, USA; Maternal and Child Health Research Institute, Stanford University, Stanford, CA 94305, USA; Bio-X Program, Stanford University, Stanford, CA 94305, USA.
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10
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Simões RB, Simões MDELPB, Ioshii SO, Robes RR, Dall'antonia MO, Goehr MP, Neves PJF. Effects of valproic acid on wound healing of the abdominal wall musculoaponeurotic layer: an experimental study in rats. Rev Col Bras Cir 2024; 51:e20243676. [PMID: 38896636 PMCID: PMC11185066 DOI: 10.1590/0100-6991e-20243676-en] [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: 10/23/2023] [Accepted: 03/10/2024] [Indexed: 06/21/2024] Open
Abstract
INTRODUCTION valproic acid (VPA), an epigenetic drug, has potential for the treatment of neoplasms. Its effects on the healing of the peritoneal-musculo-aponeurotic plane (PMA) of the abdominal wall are studied. METHOD sixty Wistar rats were allocated into two groups: experimental (VPA) and control (0.9% sodium chloride), treated daily, starting three days before the intervention and until euthanasia. Under anesthesia, a median laparotomy was performed and repaired with two synthetic layers. Assessments took place 3, 7 and 14 days after surgery. The integrity of the wounds, the quality of the inflammatory reaction, the intensity of the leukocyte infiltrate, collagen synthesis, the intensity of angiogenesis and the presence of myofibroblasts were studied. RESULTS there was dehiscence of the PMA plane in 11 of the 30 animals (p=0.001) in the experimental group. There was no difference in the quality and intensity of the inflammatory reaction. Immunohistochemistry revealed, in the experimental group, less collagen I (p3=0.003, p7=0.013 and p14=0.001) and more collagen III (p3=0.003, p7=0.013 and p14= 0.001). Collagen evaluated by Sirus Supra Red F3BA showed, in the experimental group, less collagen at all three times (p<0.001) with less collagen I and collagen III (p<0.001). A lower number of vessels was found on the 3rd day (p<0.001) and on the 7th day (p=0.001) and did not affect the number of myofibroblasts. CONCLUSION VPA showed dehiscence of the PMA plane, with less deposition of total collagen and collagen I, less angiogenic activity, without interfering with the number of myofibroblasts.
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Affiliation(s)
- Rachel Biondo Simões
- - Universidade Federal do Paraná, Programa de Pós-graduação em Clínica Cirúrgica - Dep. de Cirurgia - Curitiba - PR - Brasil
| | - Maria DE Lourdes Pessole Biondo Simões
- - Universidade Federal do Paraná, Programa de Pós-graduação em Clínica Cirúrgica - Dep. de Cirurgia - Curitiba - PR - Brasil
- - Universidade Federal do Paraná, Técnica Cirúrgica e Cirurgia Experimental - Curitiba - PR - Brasil
| | - Sérgio Ossamu Ioshii
- - Universidade Federal do Paraná, Departamento de Patologia da UFPR - Curitiba - PR - Brasil
| | - Rogério Ribeiro Robes
- - Universidade Federal do Paraná, Técnica Cirúrgica e Cirurgia Experimental - Curitiba - PR - Brasil
| | | | - Matheus Prince Goehr
- - Universidade Federal do Paraná, Técnica Cirúrgica e Cirurgia Experimental - Curitiba - PR - Brasil
| | - Pedro Juan Furtado Neves
- - Universidade Federal do Paraná, Técnica Cirúrgica e Cirurgia Experimental - Curitiba - PR - Brasil
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11
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Nwokoye PN, Abilez OJ. Blood vessels in a dish: the evolution, challenges, and potential of vascularized tissues and organoids. Front Cardiovasc Med 2024; 11:1336910. [PMID: 38938652 PMCID: PMC11210405 DOI: 10.3389/fcvm.2024.1336910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Accepted: 04/19/2024] [Indexed: 06/29/2024] Open
Abstract
Vascular pathologies are prevalent in a broad spectrum of diseases, necessitating a deeper understanding of vascular biology, particularly in overcoming the oxygen and nutrient diffusion limit in tissue constructs. The evolution of vascularized tissues signifies a convergence of multiple scientific disciplines, encompassing the differentiation of human pluripotent stem cells (hPSCs) into vascular cells, the development of advanced three-dimensional (3D) bioprinting techniques, and the refinement of bioinks. These technologies are instrumental in creating intricate vascular networks essential for tissue viability, especially in thick, complex constructs. This review provides broad perspectives on the past, current state, and advancements in key areas, including the differentiation of hPSCs into specific vascular lineages, the potential and challenges of 3D bioprinting methods, and the role of innovative bioinks mimicking the native extracellular matrix. We also explore the integration of biophysical cues in vascularized tissues in vitro, highlighting their importance in stimulating vessel maturation and functionality. In this review, we aim to synthesize these diverse yet interconnected domains, offering a broad, multidisciplinary perspective on tissue vascularization. Advancements in this field will help address the global organ shortage and transform patient care.
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Affiliation(s)
- Peter N. Nwokoye
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Oscar J. Abilez
- Department of Cardiothoracic Surgery, Stanford University, Stanford, CA, United States
- Division of Pediatric CT Surgery, Stanford University, Stanford, CA, United States
- Cardiovascular Institute, Stanford University, Stanford, CA, United States
- Maternal and Child Health Research Institute, Stanford University, Stanford, CA, United States
- Bio-X Program, Stanford University, Stanford, CA, United States
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12
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Harrison JM, Leong EK, Osborne ND, Marshall JS, Bezuhly M. AT2R Activation Improves Wound Healing in a Preclinical Mouse Model. Biomedicines 2024; 12:1238. [PMID: 38927444 PMCID: PMC11200587 DOI: 10.3390/biomedicines12061238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Revised: 05/23/2024] [Accepted: 05/28/2024] [Indexed: 06/28/2024] Open
Abstract
Abnormal skin healing resulting in chronic wounds or hypertrophic scarring remains a major healthcare burden. Here, the antifibrotic angiotensin II type 2 receptor (AT2R) signaling pathway was modulated to determine its impact on cutaneous wound healing. Balb/c mice received two splinted full-thickness wounds. Topical treatments with the selective AT2R agonist compound 21 (C21) and/or selective antagonist PD123319 or saline vehicle were administered until sacrifice on post-wounding days 7 or 10. The rate of wound re-epithelialization was accelerated by PD123319 and combination treatments. In vitro, C21 significantly reduced human fibroblast migration. C21 increased both collagen and vascular densities at days 7 and 10 post-wounding and collagen I:III ratio at day 10, while PD123319 and combination treatments decreased them. Genes associated with regeneration and repair were upregulated by C21, while PD123319 treatment increased the expression of genes associated with inflammation and immune cell chemotaxis. C21 treatment reduced wound total leukocyte and neutrophil staining densities, while PD123319 increased these and macrophage densities. Overall, AT2R activation with C21 yields wounds that mature more quickly with structural, cellular, and gene expression profiles more closely approximating unwounded skin. These findings support AT2R signal modulation as a potential therapeutic target to improve skin quality during wound healing.
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Affiliation(s)
- Julia M. Harrison
- Department of Surgery, IWK Health Centre, 5850/5980 University Avenue, Halifax, NS B3K 6R8, Canada;
- Department of Surgery, Dalhousie University, 5850 College St, Halifax, NS B3H 4H7, Canada
| | - Edwin K. Leong
- Department of Pathology, Dalhousie University, 5850 College St, Halifax, NS B3H 4H7, Canada
| | - Natasha D. Osborne
- Department of Microbiology & Immunology, Dalhousie University, 5850 College St, Halifax, NS B3H 4H7, Canada;
| | - Jean S. Marshall
- Department of Pathology, Dalhousie University, 5850 College St, Halifax, NS B3H 4H7, Canada
- Department of Microbiology & Immunology, Dalhousie University, 5850 College St, Halifax, NS B3H 4H7, Canada;
| | - Michael Bezuhly
- Department of Surgery, IWK Health Centre, 5850/5980 University Avenue, Halifax, NS B3K 6R8, Canada;
- Department of Surgery, Dalhousie University, 5850 College St, Halifax, NS B3H 4H7, Canada
- Department of Microbiology & Immunology, Dalhousie University, 5850 College St, Halifax, NS B3H 4H7, Canada;
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13
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Zhao Z, Zhang Y, Meng C, Xie X, Cui W, Zuo K. Tissue-Penetrating Ultrasound-Triggered Hydrogel for Promoting Microvascular Network Reconstruction. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2401368. [PMID: 38600702 PMCID: PMC11187930 DOI: 10.1002/advs.202401368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/29/2024] [Indexed: 04/12/2024]
Abstract
The microvascular network plays an important role in providing nutrients to the injured tissue and exchanging various metabolites. However, how to achieve efficient penetration of the injured tissue is an important bottleneck restricting the reconstruction of microvascular network. Herein, the hydrogel precursor solution can efficiently penetrate the damaged tissue area, and ultrasound triggers the release of thrombin from liposomes in the solution to hydrolyze fibrinogen, forming a fibrin solid hydrogel network in situ with calcium ions and transglutaminase as catalysts, effectively solving the penetration impedance bottleneck of damaged tissues and ultimately significantly promoting the formation of microvascular networks within tissues. First, the fibrinogen complex solution is effectively permeated into the injured tissue. Second, ultrasound triggered the release of calcium ions and thrombin, activates transglutaminase, and hydrolyzes fibrinogen. Third, fibrin monomers are catalyzed to form fibrin hydrogels in situ in the damaged tissue area. In vitro studies have shown that the fibrinogen complex solution effectively penetrated the artificial bone tissue within 15 s after ultrasonic triggering, and formed a hydrogel after continuous triggering for 30 s. Overall, this innovative strategy effectively solved the problem of penetration resistance of ultrasound-triggered hydrogels in the injured tissues, and finally activates in situ microvascular networks regeneration.
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Affiliation(s)
- Zhenyu Zhao
- Department of Interventional and Vascular SurgeryShanghai Tenth People's HospitalTongji University School of MedicineShanghai200072China
| | - Yin Zhang
- Department of OrthopaedicsShanghai Key Laboratory for Prevention and Treatment of Bone and Joint DiseasesShanghai Institute of Traumatology and OrthopaedicsRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025China
| | - Chen Meng
- Department of OrthopaedicsShanghai Key Laboratory for Prevention and Treatment of Bone and Joint DiseasesShanghai Institute of Traumatology and OrthopaedicsRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025China
| | - Xiaoyun Xie
- Department of Interventional and Vascular SurgeryShanghai Tenth People's HospitalTongji University School of MedicineShanghai200072China
| | - Wenguo Cui
- Department of OrthopaedicsShanghai Key Laboratory for Prevention and Treatment of Bone and Joint DiseasesShanghai Institute of Traumatology and OrthopaedicsRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin 2nd RoadShanghai200025China
| | - Keqiang Zuo
- Department of Interventional and Vascular SurgeryShanghai Tenth People's HospitalTongji University School of MedicineShanghai200072China
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14
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Dalicho V, Straube T, Kelly K, Larsen B, Wünsch L, Lindert J. Depth of intact vascular plexus - visualized with optical coherence tomography - correlates to burn depth in thoracic thermic injuries in children. Innov Surg Sci 2024; 9:83-91. [PMID: 39100719 PMCID: PMC11294304 DOI: 10.1515/iss-2023-0066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Accepted: 03/21/2024] [Indexed: 08/06/2024] Open
Abstract
Objectives Deep thermal injuries are among the most serious injuries in childhood, often resulting in scarring and functional impairment. However, accurate assessment of burn depth by clinical judgment is challenging. Optical coherence tomography (OCT) provides structural images of the skin and can detect blood flow within the papillary plexus. In this study, we determined the depth of the capillary network in healthy and thermally injured skin and compared it with clinical assessment. Methods In 25 children between 7 months and 15 years of age (mean age 3.5 years (SD±4.14)) with thermal injuries of the ventral thoracic wall, we determined the depth of the capillary network using OCT. Measurements were performed on healthy skin and at the center of the thermal injury (16 grade IIa, 9 grade IIb). Comparisons were made between healthy skin and thermal injury. Results The capillary network of the papillary plexus in healthy skin was detected at 0.33 mm (SD±0.06) from the surface. In grade IIb injuries, the depth of the capillary network was 0.36 mm (SD±0.06) and in grade IIa injuries 0.23 mm (SD±0.04) (Mann-Whitney U test: p<0.001). The overall prediction accuracy is 84 %. Conclusions OCT can reliably detect and differentiate the depth of the capillary network in both healthy and burned skin. In clinical IIa wounds, the capillary network appears more superficial due to the loss of the epidermis, but it is still present in the upper layer, indicating a good prognosis for spontaneous healing. In clinical grade IIb wounds, the papillary plexus was visualized deeper, which is a sign of impaired blood flow.
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Affiliation(s)
- Valerie Dalicho
- Paediatric Burn Center Lübeck, Department of Paediatric Surgery, University Hospital Lübeck, Lübeck, Germany
| | - Tina Straube
- Paediatric Burn Center Lübeck, Department of Paediatric Surgery, University Hospital Lübeck, Lübeck, Germany
| | - Kathrin Kelly
- Paediatric Burn Center Lübeck, Department of Paediatric Surgery, University Hospital Lübeck, Lübeck, Germany
| | - Beke Larsen
- Paediatric Burn Center Lübeck, Department of Paediatric Surgery, University Hospital Lübeck, Lübeck, Germany
| | - Lutz Wünsch
- Paediatric Burn Center Lübeck, Department of Paediatric Surgery, University Hospital Lübeck, Lübeck, Germany
| | - Judith Lindert
- Paediatric Burn Center Lübeck, Department of Paediatric Surgery, University Hospital Lübeck, Lübeck, Germany
- Department of Paediatric Surgery, University Hospital RostockRostock, Germany
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15
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Calligaris M, Zito G, Busà R, Bulati M, Iannolo G, Gallo A, Carreca AP, Cuscino N, Castelbuono S, Carcione C, Centi C, Amico G, Bertani A, Chinnici CM, Conaldi PG, Scilabra SD, Miceli V. Proteomic analysis and functional validation reveal distinct therapeutic capabilities related to priming of mesenchymal stromal/stem cells with IFN-γ and hypoxia: potential implications for their clinical use. Front Cell Dev Biol 2024; 12:1385712. [PMID: 38882056 PMCID: PMC11179434 DOI: 10.3389/fcell.2024.1385712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 05/13/2024] [Indexed: 06/18/2024] Open
Abstract
Mesenchymal stromal/stem cells (MSCs) are a heterogeneous population of multipotent cells that can be obtained from various tissues, such as dental pulp, adipose tissue, bone marrow and placenta. MSCs have gained importance in the field of regenerative medicine because of their promising role in cell therapy and their regulatory abilities in tissue repair and regeneration. However, a better characterization of these cells and their products is necessary to further potentiate their clinical application. In this study, we used unbiased high-resolution mass spectrometry-based proteomic analysis to investigate the impact of distinct priming strategies, such as hypoxia and IFN-γ treatment, on the composition and therapeutic functionality of the secretome produced by MSCs derived from the amniotic membrane of the human placenta (hAMSCs). Our investigation revealed that both types of priming improved the therapeutic efficacy of hAMSCs, and these improvements were related to the secretion of functional factors present in the conditioned medium (CM) and exosomes (EXOs), which play crucial roles in mediating the paracrine effects of MSCs. In particular, hypoxia was able to induce a pro-angiogenic, innate immune response-activating, and tissue-regenerative hAMSC phenotype, as highlighted by the elevated production of regulatory factors such as VEGFA, PDGFRB, ANGPTL4, ENG, GRO-γ, IL8, and GRO-α. IFN-γ priming, instead, led to an immunosuppressive profile in hAMSCs, as indicated by increased levels of TGFB1, ANXA1, THBS1, HOMER2, GRN, TOLLIP and MCP-1. Functional assays validated the increased angiogenic properties of hypoxic hAMSCs and the enhanced immunosuppressive activity of IFN-γ-treated hAMSCs. This study extends beyond the direct priming effects on hAMSCs, demonstrating that hypoxia and IFN-γ can influence the functional characteristics of hAMSC-derived secretomes, which, in turn, orchestrate the production of functional factors by peripheral blood cells. This research provides valuable insights into the optimization of MSC-based therapies by systematically assessing and comparing the priming type-specific functional features of hAMSCs. These findings highlight new strategies for enhancing the therapeutic efficacy of MSCs, particularly in the context of multifactorial diseases, paving the way for the use of hAMSC-derived products in clinical practice.
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Affiliation(s)
- Matteo Calligaris
- Proteomics Group, Ri.MED Foundation c/o IRCCS ISMETT, Palermo, Italy
| | - Giovanni Zito
- Research Department, IRCCS ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Palermo, Italy
| | - Rosalia Busà
- Research Department, IRCCS ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Palermo, Italy
| | - Matteo Bulati
- Research Department, IRCCS ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Palermo, Italy
| | - Gioacchin Iannolo
- Research Department, IRCCS ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Palermo, Italy
| | - Alessia Gallo
- Research Department, IRCCS ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Palermo, Italy
| | | | - Nicola Cuscino
- Research Department, IRCCS ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Palermo, Italy
| | - Salvatore Castelbuono
- Research Department, IRCCS ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Palermo, Italy
| | | | - Claudio Centi
- Research Department, IRCCS ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Palermo, Italy
| | | | - Alessandro Bertani
- Thoracic Surgery and Lung Transplantation Unit, IRCCS ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Palermo, Italy
| | - Cinzia Maria Chinnici
- Regenerative Medicine and Immunotherapy Area, Ri.MED Foundation c/o IRCCS ISMETT, Palermo, Italy
| | - Pier Giulio Conaldi
- Research Department, IRCCS ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Palermo, Italy
| | | | - Vitale Miceli
- Research Department, IRCCS ISMETT (Istituto Mediterraneo per i Trapianti e Terapie ad alta Specializzazione), Palermo, Italy
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16
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Hu M, Li Z, Liu Y, Feng Y, Wang Z, Huang R, Li L, Huang X, Shao Q, Lin W, Cheng X, Yang Y. Multifunctional Hydrogel of Recombinant Humanized Collagen Loaded with MSCs and MnO 2 Accelerates Chronic Diabetic Wound Healing. ACS Biomater Sci Eng 2024; 10:3188-3202. [PMID: 38592024 DOI: 10.1021/acsbiomaterials.4c00019] [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] [Indexed: 04/10/2024]
Abstract
Chronic wound repair is a clinical treatment challenge. The development of multifunctional hydrogels is of great significance in the key aspects of treating chronic wounds, including reducing oxidative stress, promoting angiogenesis, and improving the natural remodeling of extracellular matrix and immune regulation. In this study, we prepared a composite hydrogel, sodium alginate (SA)@MnO2/recombinant humanized collagen III (RHC)/mesenchymal stem cells (MSCs), composed of SA, MnO2 nanoparticles, RHC, and MSCs. The hydrogel has high mechanical properties and good biocompatibility. In vitro, SA@MnO2/RHC/MSCs hydrogel effectively enhanced the formation of intricate tubular structures and angiogenesis and showed synergistic effects on cell proliferation and migration. In vivo, the SA@MnO2/RHC/MSCs hydrogel enhanced diabetes wound healing, rapid re-epithelization, favorable collagen deposition, and abundant wound angiogenesis. These findings demonstrated that the combined effects of SA, MnO2, RHC, and MSCs synergistically accelerate healing, resulting in a reduced healing time. These observed healing effects demonstrated the potential of this multifunctional hydrogel to transform chronic wound care and improve patient outcomes.
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Affiliation(s)
- Meirong Hu
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Ziyi Li
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Yuan Liu
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Yuqing Feng
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Zhaoyang Wang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Rufei Huang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Lu Li
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Xiaopeng Huang
- Department of Molecular, Cell, and Developmental Biology, University of California Los Angeles, Los Angeles, California 90024, United States
| | - Qi Shao
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Wanqing Lin
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Xianxing Cheng
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
| | - Yan Yang
- Department of Cell Biology, Jinan University, Guangzhou 510632, China
- Guangdong Province Key Laboratory of Bioengineering Medicine, Guangzhou 510632, China
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17
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Yavuz A, Güngörmek HS, Kuru L, Doğan B. Treatment of multiple adjacent gingival recessions using leucocyte- and platelet-rich fibrin with coronally advanced flap: a 12-month split-mouth controlled randomized clinical trial. Clin Oral Investig 2024; 28:291. [PMID: 38691209 PMCID: PMC11062988 DOI: 10.1007/s00784-024-05694-3] [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: 02/20/2024] [Accepted: 04/24/2024] [Indexed: 05/03/2024]
Abstract
OBJECTIVE This split-mouth randomized study aimed to assess efficacy of leucocyte-platelet-rich fibrin (L-PRF) versus connective tissue graft (CTG) in achieving root coverage (RC) for multiple adjacent gingival recessions (MAGRs) throughout 12-month period. MATERIALS AND METHODS The study enrolled 59 teeth from 12 patients with Miller Class I MAGRs ≥ 2 mm on bilateral or contralateral sides. Patients were randomly assigned to receive coronally advanced flap (CAF) with either CTG (control) or L-PRF (test) treatment. Various parameters, including plaque and gingival index, clinical attachment level, recession depth, probing depth, recession width (RW), papilla width (PW), keratinized tissue width (KTW), gingival thickness (GT), percentage of RC, complete root coverage (CRC), and location of the relative gingival margin concerning the cemento-enamel junctions (GMCEJ) after CAF, were recorded at baseline, 3-, 6-, and 12-months post-surgery. On June 29, 2021 the study was registred to ClinicalTrials.gov (NCT04942821). RESULTS Except KTW and GT gain, all clinical parameters, RC, and CRC were similar between the groups at all follow-up periods (p > 0.05). The higher GT and KTW gains were detected in the control group compared to test group at 12 months (p < 0.05). Both RC and CRC were positively associated with initial PW and GMCEJ, but negatively with initial RW (p < 0.05). CONCLUSIONS The current study concludes that L-PRF were equally effective as CTG in treating MAGRs in terms of RC and CRC. Additionally, RC and CRC outcomes appeared to be influenced by GMCEJ, PW, and RW. CLINICAL RELEVANCE L-PRF could represent a feasible substitute for CTG in treating MAGRs.
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Affiliation(s)
- Atacan Yavuz
- Department of Periodontology, Institute of Health Sciences, Marmara University, Istanbul, Türkiye
| | - Hatice Selin Güngörmek
- Department of Periodontology, Faculty of Dentistry, Marmara University, Istanbul, 34854, Türkiye
| | - Leyla Kuru
- Department of Periodontology, Faculty of Dentistry, Marmara University, Istanbul, 34854, Türkiye
| | - Başak Doğan
- Department of Periodontology, Faculty of Dentistry, Marmara University, Istanbul, 34854, Türkiye.
- Department of Oral Health Science and Translational Research, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA.
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18
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Song H, Hao D, Zhou J, Farmer D, Wang A. Development of pro-angiogenic skin substitutes for wound healing. Wound Repair Regen 2024; 32:208-216. [PMID: 38308588 DOI: 10.1111/wrr.13154] [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: 08/21/2023] [Revised: 11/13/2023] [Accepted: 12/12/2023] [Indexed: 02/05/2024]
Abstract
Wounds pose significant challenges to public health, primarily due to the loss of the mechanical integrity and barrier function of the skin and impaired angiogenesis, causing physical morbidities and psychological trauma to affect patients. Reconstructing the vasculature of the wound bed is crucial for promoting wound healing, reducing scar formation and enhancing the quality of life for patients. The development of pro-angiogenic skin substitutes has emerged as a promising strategy to facilitate vascularization and expedite the healing process of burn wounds. This review provides an overview of the various types of skin substitutes employed in wound healing, explicitly emphasising those designed to enhance angiogenesis. Synthetic scaffolds, biological matrices and tissue-engineered constructs incorporating stem cells and primary cells, cell-derived extracellular vesicles (EVs), pro-angiogenic growth factors and peptides, as well as gene therapy-based skin substitutes are thoroughly examined. The review summarises the existing challenges, future directions and potential innovations in pro-angiogenic dressing for skin substitutes. It highlights the need for continued research to develop new technologies and combine multiple strategies and factors, and to overcome obstacles and advance the field, ultimately leading to improved outcomes for wound patients.
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Affiliation(s)
- Hengyue Song
- Center for Surgical Bioengineering, Department of Surgery, UC Davis Health, Sacramento, California, USA
- Department of Burns and Plastic Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, California, USA
| | - Dake Hao
- Center for Surgical Bioengineering, Department of Surgery, UC Davis Health, Sacramento, California, USA
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, California, USA
| | - Jianda Zhou
- Department of Burns and Plastic Surgery, The Third Xiangya Hospital of Central South University, Changsha, Hunan, People's Republic of China
| | - Diana Farmer
- Center for Surgical Bioengineering, Department of Surgery, UC Davis Health, Sacramento, California, USA
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, California, USA
| | - Aijun Wang
- Center for Surgical Bioengineering, Department of Surgery, UC Davis Health, Sacramento, California, USA
- Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children, Sacramento, California, USA
- Department of Biomedical Engineering, UC Davis, Davis, California, USA
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19
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Di T, Feng C, Wang L, Xu J, Du Y, Cheng B, Chen Y, Wu L. Enhancing Vasculogenesis in Dental Pulp Development: DPSCs-ECs Communication via FN1-ITGA5 Signaling. Stem Cell Rev Rep 2024; 20:1060-1077. [PMID: 38418738 PMCID: PMC11087358 DOI: 10.1007/s12015-024-10695-6] [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: 02/12/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Dental pulp regeneration therapy is a challenge to achieve early vascularization during treatment. Studying the regulatory mechanisms of vascular formation during human dental pulp development may provide insights for related therapies. In this study, we utilized single-cell sequencing analysis to compare the gene expression of dental pulp stem cells (DPSCs) and vascular endothelial cells (ECs) from developing and mature dental pulps. METHOD Immunohistochemistry, Western blot, and real-time polymerase chain reaction (RT-PCR) were used to detect fibronectin 1 (FN1) expression and molecules, such as PI3K/AKT. Cell proliferation assay, scratch assay, tube formation assay and were used to investigate the effects of DPSCs on the vasculogenetic capability of ECs. Additionally, animal experiments involving mice were conducted. RESULT The results revealed that DPSCs exist around dental pulp vasculature. FN1 expression was significantly higher in DPSCs from young permanent pulps than mature pulps, promoting HUVEC proliferation, migration, and tube formation via ITGA5 and the downstream PI3K/AKT signaling pathway. CONCLUSION Our data indicate that intercellular communication between DPSCs and ECs mediated by FN1-ITGA5 signaling is crucial for vascularizationduring dental pulp development, laying an experimental foundation for future clinical studies.
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Affiliation(s)
- Tiankai Di
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, People's Republic of China
- Department of Stomatology, No.969 Hospital, Joint Logistics Support Force of the Chinese People's Liberation Army, Hohhot, Inner Mongolia, 010000, People's Republic of China
| | - Chao Feng
- Center for Computational Biology, Institute of Military Cognition and Brain Sciences, Academy of Military Medical Sciences, Beijing, 100850, People's Republic of China
- Department of Clinical Laboratory, No.969 Hospital, Joint Logistics Support Force of the Chinese People's Liberation Army, Hohhot, Inner Mongolia, 010000, People's Republic of China
| | - Lulu Wang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, People's Republic of China
| | - Jinlong Xu
- Department of Stomatology, No.969 Hospital, Joint Logistics Support Force of the Chinese People's Liberation Army, Hohhot, Inner Mongolia, 010000, People's Republic of China
| | - Yang Du
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, People's Republic of China
| | - Baixiang Cheng
- Key Laboratory of Shaanxi Province for Craniofacial Precision Medicine Research, Clinical Research Center of Shaanxi Province for Dental and Maxillofacial Diseases, Department of General Dentistry, College of Stomatology, Xi'an Jiaotong University, Xi'an, Shaanxi, 710032, People's Republic of China
| | - Yujiang Chen
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, People's Republic of China.
- Department of Neurobiology and Institute of Neurosciences, School of Basic Medicine, Fourth Military Medical University, Xi'an, Shaanxi, 710032, People's Republic of China.
| | - Lian Wu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Pediatric Dentistry, School of Stomatology, The Fourth Military Medical University, Xi'an, Shaanxi, 710032, People's Republic of China.
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20
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Miskin RP, DiPersio CM. Roles for epithelial integrin α3β1 in regulation of the microenvironment during normal and pathological tissue remodeling. Am J Physiol Cell Physiol 2024; 326:C1308-C1319. [PMID: 38497112 DOI: 10.1152/ajpcell.00128.2024] [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: 02/23/2024] [Revised: 03/08/2024] [Accepted: 03/08/2024] [Indexed: 03/19/2024]
Abstract
Integrin receptors for the extracellular matrix activate intracellular signaling pathways that are critical for tissue development, homeostasis, and regeneration/repair, and their loss or dysregulation contributes to many developmental defects and tissue pathologies. This review will focus on tissue remodeling roles for integrin α3β1, a receptor for laminins found in the basement membranes (BMs) that underlie epithelial cell layers. As a paradigm, we will discuss literature that supports a role for α3β1 in promoting ability of epidermal keratinocytes to modify their tissue microenvironment during skin development, wound healing, or tumorigenesis. Preclinical and clinical studies have shown that this role depends largely on ability of α3β1 to govern the keratinocyte's repertoire of secreted proteins, or the "secretome," including 1) matrix proteins and proteases involved in matrix remodeling and 2) paracrine-acting growth factors/cytokines that stimulate other cells with important tissue remodeling functions (e.g., endothelial cells, fibroblasts, inflammatory cells). Moreover, α3β1 signaling controls gene expression that helps epithelial cells carry out these functions, including genes that encode secreted matrix proteins, proteases, growth factors, or cytokines. We will review what is known about α3β1-dependent gene regulation through both transcription and posttranscriptional mRNA stability. Regarding the latter, we will discuss examples of α3β1-dependent alternative splicing (AS) or alternative polyadenylation (APA) that prevents inclusion of cis-acting mRNA sequences that would otherwise target the transcript for degradation via nonsense-mediated decay or destabilizing AU-rich elements (AREs) in the 3'-untranslated region (3'-UTR). Finally, we will discuss prospects and anticipated challenges of exploiting α3β1 as a clinical target for the treatment of cancer or wound healing.
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Affiliation(s)
| | - C Michael DiPersio
- Department of Surgery, Albany Medical College, Albany, New York, United States
- Department of Molecular and Cellular Physiology, Albany Medical College, Albany, New York, United States
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21
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Zou Q, Duan H, Fang S, Sheng W, Li X, Stoika R, Finiuk N, Panchuk R, Liu K, Wang L. Fabrication of yeast β-glucan/sodium alginate/γ-polyglutamic acid composite particles for hemostasis and wound healing. Biomater Sci 2024; 12:2394-2407. [PMID: 38502151 DOI: 10.1039/d3bm02068a] [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: 03/20/2024]
Abstract
Particles with a porous structure can lead to quick hemostasis and provide a good matrix for cell proliferation during wound healing. Recently, many particle-based wound healing materials have been clinically applied. However, these products show good hemostatic ability but with poor wound healing ability. To solve this problem, this study fabricated APGG composite particles using yeast β-glucan (obtained from Saccharomyces cerevisiae), sodium alginate, and γ-polyglutamic acid as the starting materials. The structure of yeast β-glucan was modified with many carboxymethyl groups to obtain carboxymethylated β-glucan, which could coordinate with Ca2+ ions to form a crosslinked structure. A morphology study indicated that the APGG particles showed an irregular spheroidal structure with a low density (<0.1 g cm-3) and high porosity (>40%). An in vitro study revealed that the particles exhibited a low BCI value, low hemolysis ratio, and good cytocompatibility against L929 cells. The APGG particles could quickly stop bleeding in a mouse liver injury model and exhibited better hemostatic ability than the commercially available product Celox. Furthermore, the APGG particles could accelerate the healing of non-infected wounds, and the expression levels of CD31, α-SMA, and VEGF related to angiogenesis were significantly enhanced.
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Affiliation(s)
- Qinglin Zou
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250103, China.
| | - Hongdong Duan
- School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Shimin Fang
- School of Pharmaceutical sciences, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, China
| | - Wenlong Sheng
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250103, China.
| | - Xiaobin Li
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250103, China.
| | - Rostyslav Stoika
- Department of Regulation of Cell Proliferation and Apoptosis, Institute of Cell Biology, National Academy of Sciences of Ukraine, Lviv, Ukraine
| | - Nataliya Finiuk
- Department of Regulation of Cell Proliferation and Apoptosis, Institute of Cell Biology, National Academy of Sciences of Ukraine, Lviv, Ukraine
| | - Rostyslav Panchuk
- Department of Regulation of Cell Proliferation and Apoptosis, Institute of Cell Biology, National Academy of Sciences of Ukraine, Lviv, Ukraine
| | - Kechun Liu
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250103, China.
| | - Lizhen Wang
- Biology Institute, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250103, China.
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22
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Polverino G, Russo F, D’Andrea F. Bioactive Dressing: A New Algorithm in Wound Healing. J Clin Med 2024; 13:2488. [PMID: 38731023 PMCID: PMC11084389 DOI: 10.3390/jcm13092488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2024] [Revised: 04/03/2024] [Accepted: 04/20/2024] [Indexed: 05/13/2024] Open
Abstract
Wound management presents a significant global challenge, necessitating a comprehensive understanding of wound care products and clinical expertise in selecting dressings. Bioactive dressings (BD) represent a diverse category of dressings, capable of influencing wound healing through various mechanisms. These dressings, including honey, hyaluronic acid, collagen, alginates, and polymers enriched with polyhexamethylene biguanide, chitin, and chitosan derivatives, create a conducive environment for healing, promoting moisture balance, pH regulation, oxygen permeability, and fluid management. Interactive dressings further enhance targeted action by serving as substrates for bioactive agents. The continuous evolution of BDs, with new products introduced annually, underscores the need for updated knowledge in wound care. To facilitate dressing selection, a practical algorithm considers wound exudate, infection probability, and bleeding, guiding clinicians through the process. This algorithm aims to optimize wound care by ensuring the appropriate selection of BDs tailored to individual patient needs, ultimately improving outcomes in wound management.
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Affiliation(s)
- Gianmarco Polverino
- Correspondence: (G.P.); (F.R.); Tel.: +39-32-7449-3917 (G.P.); +39-33-3834-1531 (F.R.)
| | - Francesca Russo
- Correspondence: (G.P.); (F.R.); Tel.: +39-32-7449-3917 (G.P.); +39-33-3834-1531 (F.R.)
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23
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Han X, Saengow C, Ju L, Ren W, Ewoldt RH, Irudayaraj J. Exosome-coated oxygen nanobubble-laden hydrogel augments intracellular delivery of exosomes for enhanced wound healing. Nat Commun 2024; 15:3435. [PMID: 38653959 PMCID: PMC11039765 DOI: 10.1038/s41467-024-47696-5] [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: 10/08/2023] [Accepted: 04/09/2024] [Indexed: 04/25/2024] Open
Abstract
Wound healing is an obvious clinical concern that can be hindered by inadequate angiogenesis, inflammation, and chronic hypoxia. While exosomes derived from adipose tissue-derived stem cells have shown promise in accelerating healing by carrying therapeutic growth factors and microRNAs, intracellular cargo delivery is compromised in hypoxic tissues due to activated hypoxia-induced endocytic recycling. To address this challenge, we have developed a strategy to coat oxygen nanobubbles with exosomes and incorporate them into a polyvinyl alcohol/gelatin hybrid hydrogel. This approach not only alleviates wound hypoxia but also offers an efficient means of delivering exosome-coated nanoparticles in hypoxic conditions. The self-healing properties of the hydrogel, along with its component, gelatin, aids in hemostasis, while its crosslinking bonds facilitate hydrogen peroxide decomposition, to ameliorate wound inflammation. Here, we show the potential of this multifunctional hydrogel for enhanced healing, promoting angiogenesis, facilitating exosome delivery, mitigating hypoxia, and inhibiting inflammation in a male rat full-thickness wound model.
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Affiliation(s)
- Xiaoxue Han
- Department of Bioengineering, 1102 Everitt Lab, 1406 W. Green St., University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
- Biomedical Research Center, Mills Breast Cancer Institute, Carle Foundation Hospital, Urbana, IL, 61801, USA
- Cancer Center at Illinois, Beckman Institute, Urbana, IL, 61801, USA
- Holonyak Micro and Nanotechnology Laboratory, Carle R. Woese Institute for Genomic Biology, Urbana, IL, 61801, USA
| | - Chaimongkol Saengow
- Cancer Center at Illinois, Beckman Institute, Urbana, IL, 61801, USA
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Leah Ju
- Department of Bioengineering, 1102 Everitt Lab, 1406 W. Green St., University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
- Biomedical Research Center, Mills Breast Cancer Institute, Carle Foundation Hospital, Urbana, IL, 61801, USA
| | - Wen Ren
- Department of Bioengineering, 1102 Everitt Lab, 1406 W. Green St., University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
- Biomedical Research Center, Mills Breast Cancer Institute, Carle Foundation Hospital, Urbana, IL, 61801, USA
| | - Randy H Ewoldt
- Cancer Center at Illinois, Beckman Institute, Urbana, IL, 61801, USA
- Department of Mechanical Science and Engineering, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| | - Joseph Irudayaraj
- Department of Bioengineering, 1102 Everitt Lab, 1406 W. Green St., University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
- Biomedical Research Center, Mills Breast Cancer Institute, Carle Foundation Hospital, Urbana, IL, 61801, USA.
- Cancer Center at Illinois, Beckman Institute, Urbana, IL, 61801, USA.
- Holonyak Micro and Nanotechnology Laboratory, Carle R. Woese Institute for Genomic Biology, Urbana, IL, 61801, USA.
- Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
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Norrby K. On Connective Tissue Mast Cells as Protectors of Life, Reproduction, and Progeny. Int J Mol Sci 2024; 25:4499. [PMID: 38674083 PMCID: PMC11050338 DOI: 10.3390/ijms25084499] [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: 03/19/2024] [Revised: 04/10/2024] [Accepted: 04/16/2024] [Indexed: 04/28/2024] Open
Abstract
The connective tissue mast cell (MC), a sentinel tissue-residing secretory immune cell, has been preserved in all vertebrate classes since approximately 500 million years. No physiological role of the MC has yet been established. Considering the power of natural selection of cells during evolution, it is likely that the MCs exert essential yet unidentified life-promoting actions. All vertebrates feature a circulatory system, and the MCs interact readily with the vasculature. It is notable that embryonic MC progenitors are generated from endothelial cells. The MC hosts many surface receptors, enabling its activation via a vast variety of potentially harmful exogenous and endogenous molecules and via reproductive hormones in the female sex organs. Activated MCs release a unique composition of preformed and newly synthesized bioactive molecules, like heparin, histamine, serotonin, proteolytic enzymes, cytokines, chemokines, and growth factors. MCs play important roles in immune responses, tissue remodeling, cell proliferation, angiogenesis, inflammation, wound healing, tissue homeostasis, health, and reproduction. As recently suggested, MCs enable perpetuation of the vertebrates because of key effects-spanning generations-in ovulation and pregnancy, as in life-preserving activities in inflammation and wound healing from birth till reproductive age, thus creating a permanent life-sustaining loop. Here, we present recent advances that further indicate that the MC is a specific life-supporting and progeny-safeguarding cell.
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Affiliation(s)
- Klas Norrby
- Department of Pathology, Institute of Medical Biology, Sahlgren Academy, University of Gothenburg, 7 Ostindiefararen, SE-417 65 Gothenburg, Sweden
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Cano I, Wild M, Gupta U, Chaudhary S, Ng YSE, Saint-Geniez M, D'Amore PA, Hu Z. Endomucin selectively regulates vascular endothelial growth factor receptor-2 endocytosis through its interaction with AP2. Cell Commun Signal 2024; 22:225. [PMID: 38605348 PMCID: PMC11007909 DOI: 10.1186/s12964-024-01606-w] [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: 11/28/2023] [Accepted: 04/05/2024] [Indexed: 04/13/2024] Open
Abstract
The endothelial glycocalyx, located at the luminal surface of the endothelium, plays an important role in the regulation of leukocyte adhesion, vascular permeability, and vascular homeostasis. Endomucin (EMCN), a component of the endothelial glycocalyx, is a mucin-like transmembrane glycoprotein selectively expressed by venous and capillary endothelium. We have previously shown that knockdown of EMCN impairs retinal vascular development in vivo and vascular endothelial growth factor 165 isoform (VEGF165)-induced cell migration, proliferation, and tube formation by human retinal endothelial cells in vitro and that EMCN is essential for VEGF165-stimulated clathrin-mediated endocytosis and signaling of VEGF receptor 2 (VEGFR2). Clathrin-mediated endocytosis is an essential step in receptor signaling and is of paramount importance for a number of receptors for growth factors involved in angiogenesis. In this study, we further investigated the molecular mechanism underlying EMCN's involvement in the regulation of VEGF-induced endocytosis. In addition, we examined the specificity of EMCN's role in angiogenesis-related cell surface receptor tyrosine kinase endocytosis and signaling. We identified that EMCN interacts with AP2 complex, which is essential for clathrin-mediated endocytosis. Lack of EMCN did not affect clathrin recruitment to the AP2 complex following VEGF stimulation, but it is necessary for the interaction between VEGFR2 and the AP2 complex during endocytosis. EMCN does not inhibit VEGFR1 and FGFR1 internalization or their downstream activities since EMCN interacts with VEGFR2 but not VEGFR1 or FGFR1. Additionally, EMCN also regulates VEGF121-induced VEGFR2 phosphorylation and internalization.
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Affiliation(s)
- Issahy Cano
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Boston, MA, USA
- Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
- Present affiliation: Department of Molecular Medicine, Cornell University, Ithaca, NY, USA
| | - Melissa Wild
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Boston, MA, USA
- Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Urvi Gupta
- Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Suman Chaudhary
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Boston, MA, USA
- Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
| | - Yin Shan Eric Ng
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Boston, MA, USA
- Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
- Present Affiliation: EyeBiotech, London, UK
| | - Magali Saint-Geniez
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Boston, MA, USA
- Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
- Present affiliation: Novartis Institutes for Biomedical Research, Cambridge, MA, USA
| | - Patricia A D'Amore
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Boston, MA, USA
- Department of Ophthalmology, Harvard Medical School, Boston, MA, USA
- Department of Pathology, Harvard Medical School, Boston, MA, USA
| | - Zhengping Hu
- Schepens Eye Research Institute of Massachusetts Eye and Ear, Boston, MA, USA.
- Department of Ophthalmology, Harvard Medical School, Boston, MA, USA.
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26
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Xu C, Hu L, Zeng J, Wu A, Deng S, Zhao Z, Geng K, Luo J, Wang L, Zhou X, Huang W, Long Y, Song J, Zheng S, Wu J, Chen Q. Gynura divaricata (L.) DC. promotes diabetic wound healing by activating Nrf2 signaling in diabetic rats. JOURNAL OF ETHNOPHARMACOLOGY 2024; 323:117638. [PMID: 38135237 DOI: 10.1016/j.jep.2023.117638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 12/08/2023] [Accepted: 12/19/2023] [Indexed: 12/24/2023]
Abstract
THE ETHNOPHARMACOLOGICAL SIGNIFICANCE Diabetic chronic foot ulcers pose a significant therapeutic challenge as a result of the oxidative stress caused by hyperglycemia. Which impairs angiogenesis and delays wound healing, potentially leading to amputation. Gynura divaricata (L.) DC. (GD), a traditional Chinese herbal medicine with hypoglycemic effects, has been proposed as a potential therapeutic agent for diabetic wound healing. However, the underlying mechanisms of its effects remain unclear. AIM OF THE STUDY In this study, we aimed to reveal the effect and potential mechanisms of GD on accelerating diabetic wound healing in vitro and in vivo. MATERIALS AND METHODS The effects of GD on cell proliferation, apoptosis, reactive oxygen species (ROS) production, migration, mitochondrial membrane potential (MMP), and potential molecular mechanisms were investigated in high glucose (HG) stimulated human umbilical vein endothelial cells (HUVECs) using CCK-8, flow cytometry assay, wound healing assay, immunofluorescence, DCFH-DA staining, JC-1 staining, and Western blot. Full-thickness skin defects were created in STZ-induced diabetic rats, and wound healing rate was tracked by photographing them every day. HE staining, immunohistochemistry, and Western blot were employed to investigate the effect and molecular mechanism of GD on wound healing in diabetic rats. RESULTS GD significantly improved HUVEC survival, decreased apoptosis, lowered ROS production, restored MMP, improved migration ability, and raised VEGF expression. The use of Nrf2-siRNA completely abrogated these effects. Topical application of GD promoted angiogenesis and granulation tissue growth, resulting in faster healing of diabetic wounds. The expression of VEGF, CD31, and VEGFR was elevated in the skin tissue of diabetic rats after GD treatment, which upregulated HO-1, NQO-1, and Bcl-2 expression while downregulating Bax expression via activation of the Nrf2 signaling pathway. CONCLUSION The findings of this study indicate that GD has the potential to serve as a viable alternative treatment for diabetic wounds. This potential arises from its ability to mitigate the negative effects of oxidative stress on angiogenesis, which is regulated by the Nrf2 signaling pathway. The results of our study offer valuable insights into the therapeutic efficacy of GD in the treatment of diabetic wounds, emphasizing the significance of directing interventions towards the Nrf2 signaling pathway to mitigate oxidative stress and facilitate the process of angiogenesis.
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Affiliation(s)
- Caimin Xu
- Department of Endocrinology and Metabolism, The Affiliated Hospital, Southwest Medical University, Luzhou, China; School of Nursing, Southwest Medical University, Luzhou, China; Metabolic Vascular Diseases Key Laboratory of Sichuan Province, Southwest Medical University
| | - Lixin Hu
- Department of Endocrinology and Metabolism, The Affiliated Hospital, Southwest Medical University, Luzhou, China; School of Nursing, Southwest Medical University, Luzhou, China
| | - Jing Zeng
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Anguo Wu
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Shilong Deng
- Department of Nursing, The Affiliated Hospital, Southwest Medical University, Luzhou, China; Wound Healing Basic Research and Clinical Application Key Laboratory, School of Nursing, Southwest Medical University, LuZhou, China
| | - Zijuan Zhao
- Department of Nursing, The Affiliated Hospital, Southwest Medical University, Luzhou, China; Wound Healing Basic Research and Clinical Application Key Laboratory, School of Nursing, Southwest Medical University, LuZhou, China
| | - Kang Geng
- Department of Endocrinology and Metabolism, The Affiliated Hospital, Southwest Medical University, Luzhou, China
| | - Jiesi Luo
- School of Basic Medicine Sciences, Southwest Medical University, Luzhou, China
| | - Long Wang
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Xiaogang Zhou
- Department of Pharmacology, School of Pharmacy, Southwest Medical University, Luzhou, China
| | - Wei Huang
- Department of Endocrinology and Metabolism, The Affiliated Hospital, Southwest Medical University, Luzhou, China; Metabolic Vascular Diseases Key Laboratory of Sichuan Province, Southwest Medical University
| | - Yang Long
- Department of Endocrinology and Metabolism, The Affiliated Hospital, Southwest Medical University, Luzhou, China; Metabolic Vascular Diseases Key Laboratory of Sichuan Province, Southwest Medical University
| | - Jianying Song
- Department of Endocrinology and Metabolism, The Affiliated Hospital, Southwest Medical University, Luzhou, China; School of Nursing, Southwest Medical University, Luzhou, China
| | - Silin Zheng
- Department of Nursing, The Affiliated Hospital, Southwest Medical University, Luzhou, China
| | - Jianming Wu
- School of Basic Medicine Sciences, Southwest Medical University, Luzhou, China.
| | - Qi Chen
- Department of Endocrinology and Metabolism, The Affiliated Hospital, Southwest Medical University, Luzhou, China; School of Nursing, Southwest Medical University, Luzhou, China; Department of Nursing, The Affiliated Hospital, Southwest Medical University, Luzhou, China; Wound Healing Basic Research and Clinical Application Key Laboratory, School of Nursing, Southwest Medical University, LuZhou, China; Metabolic Vascular Diseases Key Laboratory of Sichuan Province, Southwest Medical University.
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27
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Esmaeilzadeh A, Yeganeh PM, Nazari M, Esmaeilzadeh K. Platelet-derived extracellular vesicles: a new-generation nanostructured tool for chronic wound healing. Nanomedicine (Lond) 2024; 19:915-941. [PMID: 38445377 DOI: 10.2217/nnm-2023-0344] [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] [Indexed: 03/07/2024] Open
Abstract
Chronic nonhealing wounds pose a serious challenge to regaining skin function and integrity. Platelet-derived extracellular vesicles (PEVs) are nanostructured particles with the potential to promote wound healing since they can enhance neovascularization and cell migration and reduce inflammation and scarring. This work provides an innovative overview of the technical laboratory issues in PEV production, PEVs' role in chronic wound healing and the benefits and challenges in its clinical translation. The article also explores the challenges of proper sourcing, extraction techniques and storage conditions, and discusses the necessity of further evaluations and combinational therapeutics, including dressing biomaterials, M2-derived exosomes, mesenchymal stem cells-derived extracellular vesicles and microneedle technology, to boost their therapeutic efficacy as advanced strategies for wound healing.
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Affiliation(s)
- Abdolreza Esmaeilzadeh
- Department of Immunology, Zanjan University of Medical Sciences, Zanjan, 77978-45157, Iran
- Cancer Gene Therapy Research Center, Zanjan University of Medical Sciences, Zanjan, 77978-45157, Iran
| | | | - Mahdis Nazari
- School of Medicine, Zanjan University of Medical Sciences, Zanjan, 77978-45157, Iran
| | - Kimia Esmaeilzadeh
- Department of Medical Nanotechnology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, 77978-45157, Iran
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28
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Choudhary V, Choudhary M, Bollag WB. Exploring Skin Wound Healing Models and the Impact of Natural Lipids on the Healing Process. Int J Mol Sci 2024; 25:3790. [PMID: 38612601 PMCID: PMC11011291 DOI: 10.3390/ijms25073790] [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: 02/08/2024] [Revised: 03/21/2024] [Accepted: 03/23/2024] [Indexed: 04/14/2024] Open
Abstract
Cutaneous wound healing is a complex biological process involving a series of well-coordinated events aimed at restoring skin integrity and function. Various experimental models have been developed to study the mechanisms underlying skin wound repair and to evaluate potential therapeutic interventions. This review explores the diverse array of skin wound healing models utilized in research, ranging from rodent excisional wounds to advanced tissue engineering constructs and microfluidic platforms. More importantly, the influence of lipids on the wound healing process is examined, emphasizing their role in enhancing barrier function restoration, modulating inflammation, promoting cell proliferation, and promoting remodeling. Lipids, such as phospholipids, sphingolipids, and ceramides, play crucial roles in membrane structure, cell signaling, and tissue repair. Understanding the interplay between lipids and the wound microenvironment provides valuable insights into the development of novel therapeutic strategies for promoting efficient wound healing and tissue regeneration. This review highlights the significance of investigating skin wound healing models and elucidating the intricate involvement of lipids in the healing process, offering potential avenues for improving clinical outcomes in wound management.
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Affiliation(s)
- Vivek Choudhary
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; (V.C.)
- Charlie Norwood VA Medical Center, Augusta, GA 30904, USA
| | - Mrunal Choudhary
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; (V.C.)
| | - Wendy B. Bollag
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA; (V.C.)
- Charlie Norwood VA Medical Center, Augusta, GA 30904, USA
- Department of Dermatology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
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29
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Saha I, Ghosh S, Roy S, Basu T, Karmakar P. Facile process of Hibiscusmucilage polymer formulation using Hibiscus rosa-sinensisleaves to treat second-degree burn and excision wounds. Biomed Mater 2024; 19:035003. [PMID: 38387054 DOI: 10.1088/1748-605x/ad2c1d] [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: 07/15/2023] [Accepted: 02/22/2024] [Indexed: 02/24/2024]
Abstract
Mucilage is a sticky substance found in various plants and microorganisms and is made up of proteins and polysaccharides. Mucilage fromHibiscus rosa sinensisisis a complex polysaccharide traditionally used to treat different skin diseases. In our study, we fabricated mucilage polymer fromHibiscus rosa sinensisleaves and evaluated its potential application in second-degree burns and excision wounds. The physical properties of Hibiscus mucilage (HM) polymer were demonstrated by using Ultraviolet-visible absorption spectroscopy, x-ray diffraction, Fourier transform infrared spectroscopy, dynamic light scattering, Scanning electron microscopy, Brunauer-Emmett-Tellerand, Swelling ratio. The human cell lines WI-38, and HaCaT have been used forin-vitroexperiments like MTT, scratch wound, BrdU, ROS scavenging assays, and western blot analysis. The results of the MTT, scratch-wound, and BrdU assay indicated that the HM polymer is nontoxic in nature and also enhances both the properties of cellular migration and proliferation, respectively. On the other hand, the result of the ROS scavenging assay suggested that HM polymer enhances the antioxidant activity of cells while the western blot analysis designated that the HM polymer treatment caused downregulation of the pro-inflammatory cytokine IFN-γand upregulation of the pAkt (Serine 473) protein, and TGF-β1 signaling pathway. Therefore, allin-vitroexperimental studies recommended that HM polymer is biocompatible and has antioxidant and anti-inflammatory effects. In thein vivoexperiment, second-degree burns and excision wounds were created on the dorsal surface of male BALB/c mice. After the sixth day of HM polymer treatment have developed new tissue, hair follicles, blood vessels,α-SMA, and Collagen type-1 fiber on the burn and excision wound area while the 11th day of HM polymer treatment cured the wound area significantly. Therefore, it could be contemplated that HM polymer is a potential agent for treating different wounds in the near future.
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Affiliation(s)
- Ishita Saha
- Department of Life Science and Biotechnology, Jadavpur University, 188, Raja S.C. Mullick Road, Kolkata, 700032 West Bengal, India
| | - Sourav Ghosh
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, 741 235 West Bengal, India
| | - Shubham Roy
- School of Science, Shenzhen Key Laboratory of Flexible Printed Electronics Technology, Harbin Institute of Technology, Shenzhen 518055, People's Republic of China
- Department of Physics, Jadavpur University, 188, Raja S.C. Mullick Road, Kolkata, 700032 West Bengal, India
| | - Tarakdas Basu
- Department of Biochemistry and Biophysics, University of Kalyani, Kalyani, 741 235 West Bengal, India
| | - Parimal Karmakar
- Department of Life Science and Biotechnology, Jadavpur University, 188, Raja S.C. Mullick Road, Kolkata, 700032 West Bengal, India
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Bassan Marinho Maciel G, Marinho Maciel R, Linhares Ferrazzo K, Cademartori Danesi C. Etiopathogenesis of medication-related osteonecrosis of the jaws: a review. J Mol Med (Berl) 2024; 102:353-364. [PMID: 38302741 DOI: 10.1007/s00109-024-02425-9] [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: 08/24/2023] [Revised: 12/29/2023] [Accepted: 01/25/2024] [Indexed: 02/03/2024]
Abstract
This study compiles the main hypotheses involved in the etiopathogenesis of medication-related osteonecrosis of the jaw (MRONJ). A narrative review of the literature was performed. The etiopathogenesis of MRONJ is multifactorial and not fully understood. The main hypothesis considers the disturbance of bone turnover caused by anti-resorptive drugs. Bisphosphonates and denosumab inhibit osteoclast activity through different action mechanisms, accumulating bone microfracture. Other hypotheses also consider oral infection and inflammation, the antiangiogenic effect and soft tissue toxicity of bisphosphonates, and the inhibition of lymphangiogenesis. Knowledge of the current theories for MRONJ is necessary to define future studies and protocols to minimize the incidence of this severe condition.
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Affiliation(s)
- Gabriel Bassan Marinho Maciel
- Postgraduate Program in Dental Sciences, Federal University of Santa Maria, Santa Maria, RS, Brazil.
- Department of Pathology, Federal University of Santa Maria, Av. Roraima, 1000, Santa Maria, RS, 97015-900, Brazil.
| | - Roberto Marinho Maciel
- Department of Pathology, Federal University of Santa Maria, Av. Roraima, 1000, Santa Maria, RS, 97015-900, Brazil
| | - Kívia Linhares Ferrazzo
- Department of Pathology, Federal University of Santa Maria, Av. Roraima, 1000, Santa Maria, RS, 97015-900, Brazil
| | - Cristiane Cademartori Danesi
- Department of Pathology, Federal University of Santa Maria, Av. Roraima, 1000, Santa Maria, RS, 97015-900, Brazil
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Niumanlan, Jingming Y, Hao Q, Farzan R, Alizadeh Otaghvar H. A systematic review of the exercise effects on burn wound healing. Int Wound J 2024; 21:e14482. [PMID: 37957133 PMCID: PMC10898404 DOI: 10.1111/iwj.14482] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2023] [Revised: 10/18/2023] [Accepted: 10/22/2023] [Indexed: 11/15/2023] Open
Abstract
The emerging evidence has indicated the role of microRNAs (miRNA) in various physiological or pathological processes. Also, documents have suggested that exercise, by affecting miRNA regulation, may enhance burn wound healing. The current study aims to systematically review the role of exercise in regulating miRNAs related to burn wound healing to provide potential therapeutic targets. A comprehensive, systematic search was performed in different international electronic databases, such as Embase, PubMed and Google Scholar search engine, Science Direct, ProQuest and Ovid using keywords extracted from Medical Subject Headings from 2010 to September 2023. The keywords, including 'exercise' AND 'burn wound' AND 'microRNA' and finally, six cases were achieved. Evidence has indicated that exercise may promote the healing of burn wounds by regulating certain miRNAs. Studies have found that exercise regulates the expression of miRNAs such as mir-155, miR-21, let-7a, miR-146a, miR-122 and mir-210 in burn wound tissue, which regulate inflammation and angiogenesis. These findings suggest that miRNAs may play a role in the positive effect of exercise on burn wound healing. However, further research is needed to understand the mechanisms involved fully.
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Affiliation(s)
| | | | - Qin Hao
- Taiji Martial Arts Institute of Jiaozuo UniversityJiaozuoChina
| | - Ramyar Farzan
- Department of Plastic and Reconstructive Surgery, School of MedicineGuilan University of Medical SciencesRashtIran
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Erdem E, Caliskan MK, Karagul MI, Akbay E, Coskun Yilmaz B, Aygun YC. Histological and morphological development of the prepuce from birth to prepubertal age. Investig Clin Urol 2024; 65:180-188. [PMID: 38454828 PMCID: PMC10925741 DOI: 10.4111/icu.20230034] [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: 01/27/2023] [Revised: 04/20/2023] [Accepted: 11/19/2023] [Indexed: 03/09/2024] Open
Abstract
PURPOSE To study the histological changes of the preputial tissue from birth to prepubertal age in order to define unnoticed morphological changes. MATERIALS AND METHODS Prepuce samples were obtained from 79 healthy boys who underwent routine ritual circumcision. Specimens were divided into six groups according to the boys' age: newborn, 0-1 year of age, 2-3 years of age, 4-5 years of age, 6-7 years of age, and 8-9 years of age. Histologic analysis of the specimens was performed by H&E, Masson's trichrome, Verhoeff-Von Gieson, immunohistochemical staining. RESULTS Microscopic examinations showed that average epithelial thickness increased after the neonatal period (p=0.001). When collagen fiber density was evaluated, no significant differences between groups were found (p=0.083). When the elastic fibers in the dermis were evaluated, it was determined that the number and thickness of elastic fibers increased with age. Immunohistochemical examinations showed that the number of peripheral nerves marked with S100 was lower in the neonatal period than at other ages (p=0.048). When the vessels marked with CD105 antibody were counted, there was no significant difference between the groups (p=0.078). CONCLUSIONS This is the first study to examine the age-related structure of connective tissue elements in the foreskin. Our results showed that the prepuce's prepubertal maturation process is continuous, and the first 2 years of life are appropriate not only in relation to the physiological effects of age but also the optimum structural changes for wound healing, such as vessel diameter, epithelium thickness, peripheral nerve count.
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Affiliation(s)
- Erim Erdem
- Department of Urology, Mersin University Faculty of Medicine, Mersin, Türkiye
| | | | - Meryem Ilkay Karagul
- Department of Histology and Embryology, Hatay Mustafa Kemal University Faculty of Medicine, Hatay, Türkiye.
| | - Erdem Akbay
- Department of Urology, Mersin University Faculty of Medicine, Mersin, Türkiye
| | - Banu Coskun Yilmaz
- Department of Histology and Embryology, Mersin University Faculty of Medicine, Mersin, Türkiye
| | - Yuksel Cem Aygun
- Department of Urology, Başkent University Faculty of Medicine, Ankara, Türkiye
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Jiang Y, Perez-Moreno M. Translational frontiers: insight from lymphatics in skin regeneration. Front Physiol 2024; 15:1347558. [PMID: 38487264 PMCID: PMC10937408 DOI: 10.3389/fphys.2024.1347558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Accepted: 02/01/2024] [Indexed: 03/17/2024] Open
Abstract
The remarkable regenerative ability of the skin, governed by complex molecular mechanisms, offers profound insights into the skin repair processes and the pathogenesis of various dermatological conditions. This understanding, derived from studies in human skin and various model systems, has not only deepened our knowledge of skin regeneration but also facilitated the development of skin substitutes in clinical practice. Recent research highlights the crucial role of lymphatic vessels in skin regeneration. Traditionally associated with fluid dynamics and immune modulation, these vessels are now recognized for interacting with skin stem cells and coordinating regeneration. This Mini Review provides an overview of recent advancements in basic and translational research related to skin regeneration, focusing on the dynamic interplay between lymphatic vessels and skin biology. Key highlights include the critical role of stem cell-lymphatic vessel crosstalk in orchestrating skin regeneration, emerging translational approaches, and their implications for skin diseases. Additionally, the review identifies research gaps and proposes potential future directions, underscoring the significance of this rapidly evolving research arena.
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Affiliation(s)
| | - Mirna Perez-Moreno
- Section for Cell Biology and Physiology, Department of Biology, University of Copenhagen, Copenhagen, Denmark
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Karan A, Sharma NS, Darder M, Su Y, Andrabi SM, Shahriar SMS, John JV, Luo Z, DeCoster MA, Zhang YS, Xie J. Copper-Cystine Biohybrid-Embedded Nanofiber Aerogels Show Antibacterial and Angiogenic Properties. ACS OMEGA 2024; 9:9765-9781. [PMID: 38434900 PMCID: PMC10905775 DOI: 10.1021/acsomega.3c10012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/15/2024] [Accepted: 02/01/2024] [Indexed: 03/05/2024]
Abstract
Copper-cystine-based high aspect ratio structures (CuHARS) possess exceptional physical and chemical properties and exhibit remarkable biodegradability in human physiological conditions. Extensive testing has confirmed the biocompatibility and biodegradability of CuHARS under diverse biological conditions, making them a viable source of essential Cu2+. These ions are vital for catalyzing the production of nitric oxide (NO) from the decomposition of S-nitrosothiols (RSNOs) found in human blood. The ability of CuHARS to act as a Cu2+ donor under specific concentrations has been demonstrated in this study, resulting in the generation of elevated levels of NO. Consequently, this dual function makes CuHARS effective as both a bactericidal agent and a promoter of angiogenesis. In vitro experiments have shown that CuHARS actively promotes the migration and formation of complete lumens by redirecting microvascular endothelial cells. To maximize the benefits of CuHARS, they have been incorporated into biomimetic electrospun poly(ε-caprolactone)/gelatin nanofiber aerogels. Through the regulated release of Cu2+ and NO production, these channeled aerogels not only provide antibacterial support but also promote angiogenesis. Taken together, the inclusion of CuHARS in biomimetic scaffolds could hold great promise in revolutionizing tissue regeneration and wound healing.
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Affiliation(s)
- Anik Karan
- Department
of Surgery-Transplant and Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Navatha Shree Sharma
- Department
of Surgery-Transplant and Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Margarita Darder
- Instituto
de Ciencia de Materiales de Madrid (ICMM), CSIC, Madrid 28049, Spain
| | - Yajuan Su
- Department
of Surgery-Transplant and Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Syed Muntazir Andrabi
- Department
of Surgery-Transplant and Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - S M Shatil Shahriar
- Department
of Surgery-Transplant and Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Johnson V. John
- Terasaki
Institute for Biomedical Innovation, Los Angeles, California 90024, United States
| | - Zeyu Luo
- Division
of Engineering in Medicine, Department of Medicine, Brigham and Women’s
Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
| | - Mark A. DeCoster
- Biomedical
Engineering, Louisiana Tech University, Ruston, Louisiana 71272, United States
- Institute
for Micromanufacturing, Louisiana Tech University, Ruston, Louisiana 71272, United States
| | - Yu Shrike Zhang
- Division
of Engineering in Medicine, Department of Medicine, Brigham and Women’s
Hospital, Harvard Medical School, Cambridge, Massachusetts 02139, United States
| | - Jingwei Xie
- Department
of Surgery-Transplant and Holland Regenerative Medicine Program, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
- Department
of Mechanical and Materials Engineering, University of Nebraska Lincoln, Lincoln, Nebraska 68588, United States
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Geara P, Dilworth FJ. Epigenetic integration of signaling from the regenerative environment. Curr Top Dev Biol 2024; 158:341-374. [PMID: 38670712 DOI: 10.1016/bs.ctdb.2024.02.003] [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] [Indexed: 04/28/2024]
Abstract
Skeletal muscle has an extraordinary capacity to regenerate itself after injury due to the presence of tissue-resident muscle stem cells. While these muscle stem cells are the primary contributor to the regenerated myofibers, the process occurs in a regenerative microenvironment where multiple different cell types act in a coordinated manner to clear the damaged myofibers and restore tissue homeostasis. In this regenerative environment, immune cells play a well-characterized role in initiating repair by establishing an inflammatory state that permits the removal of dead cells and necrotic muscle tissue at the injury site. More recently, it has come to be appreciated that the immune cells also play a crucial role in communicating with the stem cells within the regenerative environment to help coordinate the timing of repair events through the secretion of cytokines, chemokines, and growth factors. Evidence also suggests that stem cells can help modulate the extent of the inflammatory response by signaling to the immune cells, demonstrating a cross-talk between the different cells in the regenerative environment. Here, we review the current knowledge on the innate immune response to sterile muscle injury and provide insight into the epigenetic mechanisms used by the cells in the regenerative niche to integrate the cellular cross-talk required for efficient muscle repair.
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Affiliation(s)
- Perla Geara
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, WI, United States
| | - F Jeffrey Dilworth
- Department of Cell and Regenerative Biology, University of Wisconsin, Madison, WI, United States.
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Clark CM, Abdel-Aty Y, Rives H, Sulica L. De Novo Granuloma of the Membranous Vocal Fold: A Marker of Occult Malignancy. Otolaryngol Head Neck Surg 2024; 170:468-473. [PMID: 37925620 DOI: 10.1002/ohn.570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Revised: 08/28/2023] [Accepted: 09/15/2023] [Indexed: 11/06/2023]
Abstract
OBJECTIVE De novo occurrence of granuloma (granulation tissue) on the membranous vocal fold is not readily explained by usual causes of granuloma at the vocal process. We describe a series of patients. STUDY DESIGN Case series. SETTING Single academic institution. METHODS Cases were identified over a 16-year period. All patients exhibited granulation tissue on pathology. Demographic details, presentation, treatment, histology, and clinical outcomes were recorded. RESULTS Five patients (mean age: 74.0 ± 6.1 years, 40.0% male, 40.0% former smokers) underwent a biopsy. Persistent or recurrent granulation led to a second biopsy in 4 patients an average of 1423.5 days later, revealing a new diagnosis of squamous cell carcinoma (SCC) in situ in one and mild dysplasia in another. Further persistence or recurrence led to a third biopsy or excision an average of 302.3 days later in 3 patients, demonstrating SCC in situ in 1. An average of 2.5 biopsies were required with a mean time to SCC in situ diagnosis of 919.5 days from presentation. Two patients continued to demonstrate persistent granulation tissue on histology. CONCLUSION The membranous vocal fold is an atypical location for granuloma and portends a risk of occult malignancy. The occurrence of de novo granuloma at this site should prompt close long-term clinical surveillance with a low threshold for biopsy. Consideration should be given to tissue collection in the operating room to adequately sample the lesion's base. Concern should persist even after a negative biopsy, and serial observation with repeat biopsy as needed should be pursued.
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Affiliation(s)
- Christine M Clark
- Department of Otolaryngology-Head and Neck Surgery, The Sean Parker Institute for the Voice, Weill Cornell Medical College/NewYork-Presbyterian Hospital, New York City, New York, USA
| | - Yassmeen Abdel-Aty
- Department of Otolaryngology-Head and Neck Surgery, University of South Florida, Tampa, Florida, USA
| | - Hal Rives
- Department of Otolaryngology-Head and Neck Surgery, The Sean Parker Institute for the Voice, Weill Cornell Medical College/NewYork-Presbyterian Hospital, New York City, New York, USA
| | - Lucian Sulica
- Department of Otolaryngology-Head and Neck Surgery, The Sean Parker Institute for the Voice, Weill Cornell Medical College/NewYork-Presbyterian Hospital, New York City, New York, USA
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Rabbani M, Rahman E, Powner MB, Triantis IF. Making Sense of Electrical Stimulation: A Meta-analysis for Wound Healing. Ann Biomed Eng 2024; 52:153-177. [PMID: 37743460 PMCID: PMC10808217 DOI: 10.1007/s10439-023-03371-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Accepted: 09/11/2023] [Indexed: 09/26/2023]
Abstract
Electrical stimulation as a mode of external enhancement factor in wound healing has been explored widely. It has proven to have multidimensional effects in wound healing including antibacterial, galvanotaxis, growth factor secretion, proliferation, transdifferentiation, angiogenesis, etc. Despite such vast exploration, this modality has not yet been established as an accepted method for treatment. This article reviews and analyzes the approaches of using electrical stimulation to modulate wound healing and discusses the incoherence in approaches towards reporting the effect of stimulation on the healing process. The analysis starts by discussing various processes adapted in in vitro, in vivo, and clinical practices. Later it is focused on in vitro approaches directed to various stages of wound healing. Based on the analysis, a protocol is put forward for reporting in vitro works in such a way that the outcomes of the experiment are replicable and scalable in other setups. This work proposes a ground of unification for all the in vitro approaches in a more sensible manner, which can be further explored for translating in vitro approaches to complex tissue stimulation to establish electrical stimulation as a controlled clinical method for modulating wound healing.
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Affiliation(s)
- Mamun Rabbani
- Research Centre for Biomedical Engineering, School of Science and Technology, City University of London, Northampton Square, London, ECIV 0HB, UK
| | - Enayetur Rahman
- Research Centre for Biomedical Engineering, School of Science and Technology, City University of London, Northampton Square, London, ECIV 0HB, UK
| | - Michael B Powner
- Centre for Applied Vision Research, School of Health and Psychological Sciences, City University of London, Northampton Square, London, ECIV 0HB, UK
| | - Iasonas F Triantis
- Research Centre for Biomedical Engineering, School of Science and Technology, City University of London, Northampton Square, London, ECIV 0HB, UK.
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38
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Lee YI, Lee SG, Ham S, Jung I, Suk J, Lee JH. Exploring the Safety and Efficacy of Organic Light-Emitting Diode in Skin Rejuvenation and Wound Healing. Yonsei Med J 2024; 65:98-107. [PMID: 38288650 PMCID: PMC10827635 DOI: 10.3349/ymj.2023.0125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 09/11/2023] [Accepted: 10/16/2023] [Indexed: 02/01/2024] Open
Abstract
PURPOSE Photobiomodulation (PBM), encompassing low-energy laser treatment and light-emitting diode (LED) phototherapy, has demonstrated positive impacts on skin rejuvenation and wound healing. Organic light-emitting diodes (OLEDs) present a promising advancement as wearable light sources for PBM. However, the biological and biochemical substantiation of their skin rejuvenation and wound healing effects remains limited. This study aimed to ascertain the safety and efficacy of OLEDs as a next-generation PBM modality through comprehensive in vitro and in vivo investigations. MATERIALS AND METHODS Cell viability assays and human ex vivo skin analyses were performed after exposure to OLED and LED irradiation to examine their safety. Subsequent evaluations examined expression levels and wound healing effects in human dermal fibroblasts (HDFs) using quantitative reverse transcription-polymerase chain reaction, enzyme-linked immunosorbent assay, and wound healing assays post-irradiation. Additionally, an in vivo study was conducted using a ultra violet (UV)-irradiated animal skin model to explore the impact of OLED exposure on dermal collagen density and wrinkles, employing skin replica and tissue staining techniques. RESULTS OLED irradiation had no significant morphological effects on human skin tissue, but caused a considerably higher expression of collagen than the control and LED-treated groups. Moreover, OLED irradiation reduced the expression levels of matrix metalloproteinases (MMPs) more effectively than did LED on HDFs. OLED irradiation group in HDFs had significantly higher expression levels of growth factors compared to the control group, but similar to those in the LED irradiation group. In addition, OLED irradiation on photo-aged animal skin model resulted in increased collagen fiber density in the dermis while reducing ultra violet radiation-mediated skin wrinkles and roughness, as shown in the skin replica. CONCLUSION This study established comparable effectiveness between OLED and LED irradiation in upregulating collagen and growth factor expression levels while downregulating MMP levels in vitro. In the UV-irradiated animal skin model, OLED exposure post UV radiation correlated with reduced skin wrinkles and augmented dermal collagen density. Accelerated wound recovery and demonstrated safety further underscore OLEDs' potential as a future PBM modality alongside LEDs, offering promise in the realms of skin rejuvenation and wound healing.
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Affiliation(s)
- Young In Lee
- Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
- Scar Laser and Plastic Surgery Center, Yonsei Cancer Hospital, Seoul, Korea
| | - Sang Gyu Lee
- Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Seoyoon Ham
- Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Inhee Jung
- Global Medical Research Center, Seoul, Korea
| | - Jangmi Suk
- Global Medical Research Center, Seoul, Korea
| | - Ju Hee Lee
- Department of Dermatology & Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea
- Scar Laser and Plastic Surgery Center, Yonsei Cancer Hospital, Seoul, Korea.
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Fedorczyk B, Redkiewicz P, Matalińska J, Piast R, Kosson P, Wieczorek R. Chirality and Rigidity in Triazole-Modified Peptidomimetics Interacting with Neuropilin-1. Pharmaceuticals (Basel) 2024; 17:190. [PMID: 38399405 PMCID: PMC10891769 DOI: 10.3390/ph17020190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/19/2024] [Accepted: 01/19/2024] [Indexed: 02/25/2024] Open
Abstract
The interaction of Neuropilin-1 (NRP-1) with vascular endothelial growth factor (VEGF) has been shown to promote angiogenesis under physiological and pathological conditions. Angiogenesis around tumors is a major factor allowing for their growth and spread. Disrupting NRP-1/VEGF complex formation is thus a promising pathway for the development of new anticancer pharmaceuticals. A large body of work has been produced in the last two decades detailing the development of inhibitors of NRP-1/VEGF complex formation. Among those were peptide A7R and its smaller derivatives KXXR and K(Har)XXR. It has been previously reported that replacement of the XX backbone with triazole residues has a positive effect on the proteolytic stability of inhibitors. It has also been reported that a higher dihedral angle range restriction of the XX backbone has a positive effect on the activity of inhibitors. In this work, we have designed new triazole derivatives of K(Har)XXR inhibitors with substitution allowing for higher range restriction of the XX backbone. The obtained peptidomimetics have greater activity than their less restricted counterparts. One of the newly obtained structures has greater affinity than the reference peptide A7R.
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Affiliation(s)
- Bartłomiej Fedorczyk
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (B.F.); (R.P.)
| | - Patrycja Redkiewicz
- Mossakowski Medical Research Centre Polish Academy of Science, 5 Pawinskiego Street, 02-106 Warsaw, Poland; (P.R.); (J.M.); (P.K.)
| | - Joanna Matalińska
- Mossakowski Medical Research Centre Polish Academy of Science, 5 Pawinskiego Street, 02-106 Warsaw, Poland; (P.R.); (J.M.); (P.K.)
| | - Radosław Piast
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (B.F.); (R.P.)
| | - Piotr Kosson
- Mossakowski Medical Research Centre Polish Academy of Science, 5 Pawinskiego Street, 02-106 Warsaw, Poland; (P.R.); (J.M.); (P.K.)
| | - Rafał Wieczorek
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw, Poland; (B.F.); (R.P.)
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40
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Zheng HH, Ben XY, Wang YR, Tian MS, Meng QW, Li DX, Wen SL, Ni PL, Hao JW, Zhang QP, Yang J, Liu QB, Li QF, Yi XN. Experimental study on the effect and mechanism of adipose stem cell-derived exosomes combined with botulinum toxin A on skin trauma in rats. J Cosmet Dermatol 2024; 23:271-283. [PMID: 37464738 DOI: 10.1111/jocd.15922] [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: 05/17/2023] [Revised: 06/25/2023] [Accepted: 06/28/2023] [Indexed: 07/20/2023]
Abstract
BACKGROUND Adipose stem cell-derived exosomes (ADSC-EXO) and botulinum toxin type A (BTX-A) individually showed a therapeutic effect on skin wound repair. AIMS This study investigated their synergistic effect on promoting skin wound healing in vitro and in vivo and the underlying molecular events. METHODS ADSCs were isolated from Sprague-Dawley (SD) rats to obtain ADSC-EXO by ultrafiltration and ultracentrifugation and were confirmed using nanoparticle tracking analysis and transmission electron microscopy. Human skin fibroblasts (HSF) were cultured and treated with or without ADSC-EXO, BTX-A, or their combination. Changes in cell phenotypes and protein expression were analyzed using different in vitro assays, and a rat skin wound model was used to assess their in vivo effects. RESULTS The isolated ADSC-EXO from primarily cultured ADSCs had a circular vesicle shape with a 30-180 nm diameter. Treatment of HSF with ADSC-EXO and/or BTX-A significantly accelerated HSF migration in vitro and skin wound healing in a rat model. Moreover, ADSC-EXO plus BTX-A treatment dramatically induced VEGFA expression but reduced COL III and COL I levels in vivo. ADSC-EXO and/or BTX-A treatment significantly upregulated TGF-β3 expression on Day 16 after surgery but downregulated TGF-β1 expression, suggesting that ADSC-EXO plus BTX-A promoted skin wound healing and reduced inflammatory cell infiltration. CONCLUSIONS The ADSC-EXO plus BTX-A treatment demonstrated a synergistic effect on skin wound healing through upregulation of VEGF expression and the TGF-β3/TGF-β1 and COL III/COL I ratio.
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Affiliation(s)
- Hui-Hui Zheng
- Engineering Research Center of Tropical Medicine, Ministry of Education, The Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Department of Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Departments of Human Anatomy and Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Xin-Yu Ben
- Engineering Research Center of Tropical Medicine, Ministry of Education, The Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Department of Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Departments of Human Anatomy and Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Neuromedicine Center of The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Ya-Ru Wang
- Engineering Research Center of Tropical Medicine, Ministry of Education, The Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Department of Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Meng-Si Tian
- Engineering Research Center of Tropical Medicine, Ministry of Education, The Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Department of Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Qing-Wen Meng
- Engineering Research Center of Tropical Medicine, Ministry of Education, The Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Department of Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Neuromedicine Center of The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - De-Xian Li
- Engineering Research Center of Tropical Medicine, Ministry of Education, The Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Department of Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Shi-Lei Wen
- Engineering Research Center of Tropical Medicine, Ministry of Education, The Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Department of Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Departments of Human Anatomy and Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Pan-Li Ni
- Engineering Research Center of Tropical Medicine, Ministry of Education, The Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Department of Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Departments of Human Anatomy and Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Jing-Wen Hao
- Engineering Research Center of Tropical Medicine, Ministry of Education, The Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Department of Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Departments of Human Anatomy and Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Quan-Peng Zhang
- Engineering Research Center of Tropical Medicine, Ministry of Education, The Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Department of Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Departments of Human Anatomy and Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Juan Yang
- Engineering Research Center of Tropical Medicine, Ministry of Education, The Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Department of Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Qi-Bing Liu
- Engineering Research Center of Tropical Medicine, Ministry of Education, The Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Department of Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Neuromedicine Center of The First Affiliated Hospital of Hainan Medical University, Haikou, China
| | - Qi-Fu Li
- Engineering Research Center of Tropical Medicine, Ministry of Education, The Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Department of Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Departments of Human Anatomy and Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
| | - Xi-Nan Yi
- Engineering Research Center of Tropical Medicine, Ministry of Education, The Key Laboratory of Brain Science Research and Transformation in Tropical Environment of Hainan Province & Department of Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Departments of Human Anatomy and Neurology, The First Affiliated Hospital, Hainan Medical University, Haikou, China
- Neuromedicine Center of The First Affiliated Hospital of Hainan Medical University, Haikou, China
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Vélez González JJ, Berger M, Schiele S, Rubeck A, Müller G, Welzel J, Schuh S. Dynamic optical coherence tomography of chronic venous ulcers. J Eur Acad Dermatol Venereol 2024; 38:223-231. [PMID: 37669869 DOI: 10.1111/jdv.19496] [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: 06/24/2023] [Accepted: 08/11/2023] [Indexed: 09/07/2023]
Abstract
BACKGROUND Chronic ulcers, especially venous leg ulcers, are a major burden on the healthcare system. To date there are only few non-invasive established procedures for evaluation of blood perfusion in wounds. Dynamic optical coherence tomography (D-OCT) provides images of the skin's superficial vascularisation. OBJECTIVES This study aims to investigate if and how the D-OCT measurement of chronic wounds can provide new information about the vascularisation during the healing process. METHODS We examined 16 venous ulcers over 16 weeks and evaluated the vessel morphology and density using D-OCT at the wound bed, borders, two centimetres adjacent to the wound und at non-ulcerated skin on the contralateral leg. RESULTS In D-OCT scans clumps were unique and the most common vessel type in the wound area of venous ulcers, whereas lines and serpiginous vessels were the most common in non-ulcerated skin. At the wound border mottle and cluster patterns occurred more frequently. Healthy skin showed a significant increase of mesh pattern. Vessel density significantly increased at the wound area compared to non-ulcerated skin. During the healing process the wound border showed the most vascular changes while only an increase in curves was observed in the wound centre. Non-healing wounds had fewer dots and blobs at the borders, fewer dots, coils, clumps, lines and serpiginous vessels at the centre and fewer dots in adjacent skin. Temperature analysis showed higher temperatures in non-ulcerated skin, followed by the wound margin and centre. Non-healing wounds showed the lowest temperatures in the wound centre. CONCLUSIONS These results highlight the non-invasive use of D-OCT for the examination and monitoring of wound healing in chronic venous ulcers. D-OCT imaging of blood vessels may offer the potential to detect disorders of wound healing at an early stage, differentiate ulcers of different genesis and to tailor more individualized, patient-oriented therapy.
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Affiliation(s)
| | - Maximilian Berger
- Department of Dermatology and Allergology, University Hospital Augsburg, Augsburg, Germany
| | - Stefan Schiele
- Institute of Mathematics, University of Augsburg, Augsburg, Germany
| | - Anna Rubeck
- Institute of Mathematics, University of Augsburg, Augsburg, Germany
| | - Gernot Müller
- Institute of Mathematics, University of Augsburg, Augsburg, Germany
| | - Julia Welzel
- Department of Dermatology and Allergology, University Hospital Augsburg, Augsburg, Germany
| | - Sandra Schuh
- Department of Dermatology and Allergology, University Hospital Augsburg, Augsburg, Germany
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Cao Y, Yan J, Dong Z, Wang J, Jiang X, Cui T, Huang Y, Liu H. Adipose-derived Mesenchymal Stem Cells are Ideal for the Cell-based Treatment of Refractory Wounds: Strong Potential for Angiogenesis. Stem Cell Rev Rep 2024; 20:313-328. [PMID: 37874529 DOI: 10.1007/s12015-023-10641-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] [Accepted: 10/10/2023] [Indexed: 10/25/2023]
Abstract
Although Mesenchymal Stem Cells (MSCs)-based therapy has been proposed as a promising strategy for the treatment of chronic lower-extremity ulcers, their optimal sources, amounts, and delivery methods are urgently needed to be determined. In this study, we compared the heterogeneity of the human MSCs derived from bone marrow (BMSCs), umbilical cord (UCMSCs), and adipose tissue (ADSCs) in accelerating wound healing and promoting angiogenesis and explored the underlying mechanism. Briefly, a diabetic rat model with a full-thickness cutaneous wound on the dorsal foot was developed. The wound was topically administered with three types of MSCs. Additionally, we carried out in vitro and in vivo analysis of the angiogenic properties of the MSCs. Moreover, the molecular mechanism of the heterogeneity of the MSCs derived from the three tissues was explored by transcriptome sequencing. When compared with the BMSCs- and UCMSCs-treated groups, the ADSCs-treated group exhibited markedly accelerated healing efficiency, characterized by increased wound closure rates, enhanced angiogenesis, and collagen deposition at the wound site. The three types of MSCs formed three-dimensional capillary-like structures and promoted angiogenesis in vitro and in vivo, with ADSCs exhibiting the highest capacity for tube formation and pro-angiogenesis. Furthermore, transcriptome sequencing revealed that ADSCs had higher expression levels of angiogenesis-associated genes. Our findings indicate that MSCs-based therapy accelerates the healing of ischemia- and diabetes-induced lower-extremity ulcers and that adipose tissue-derived MSCs might be ideal for therapeutic angiogenesis and treatment of chronic ischemic wounds.
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Affiliation(s)
- Yingxuan Cao
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
- Innovative Technology Research Institute of Plastic Surgery, Guangzhou, 510630, People's Republic of China
- Key Laboratory of Regenerative Medicine, Ministry of Education, Guangzhou, 510632, People's Republic of China
| | - Jianxin Yan
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
- Innovative Technology Research Institute of Plastic Surgery, Guangzhou, 510630, People's Republic of China
- Key Laboratory of Regenerative Medicine, Ministry of Education, Guangzhou, 510632, People's Republic of China
| | - Zhiqin Dong
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
- Innovative Technology Research Institute of Plastic Surgery, Guangzhou, 510630, People's Republic of China
- Key Laboratory of Regenerative Medicine, Ministry of Education, Guangzhou, 510632, People's Republic of China
| | - Jingru Wang
- Department of Burn Surgery, The First People's Hospital of Foshan, Foshan, 528000, China
| | - Xiao Jiang
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China
- Innovative Technology Research Institute of Plastic Surgery, Guangzhou, 510630, People's Republic of China
- Key Laboratory of Regenerative Medicine, Ministry of Education, Guangzhou, 510632, People's Republic of China
| | - Taixing Cui
- Dalton Cardiovascular Research Center, Department of Medical Pharmacology and Physiology, School of Medicine, University of Missouri, Columbia, MO, 65211, USA.
| | - Yuesheng Huang
- Department of Wound Repair, Institute of Wound Repair and Regeneration Medicine, Southern University of Science and Technology Hospital, Southern University of Science and Technology School of Medicine, Shenzhen, 518055, China.
| | - Hongwei Liu
- Department of Plastic Surgery, The First Affiliated Hospital of Jinan University, Guangzhou, 510630, People's Republic of China.
- Innovative Technology Research Institute of Plastic Surgery, Guangzhou, 510630, People's Republic of China.
- Key Laboratory of Regenerative Medicine, Ministry of Education, Guangzhou, 510632, People's Republic of China.
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Suh SB, Suh JY, Cho SB. Analyzing secretory proteins in human dermal fibroblast-conditioned medium for angiogenesis: A bioinformatic approach. Skin Res Technol 2024; 30:e13568. [PMID: 38200622 PMCID: PMC10781896 DOI: 10.1111/srt.13568] [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: 12/07/2023] [Accepted: 12/19/2023] [Indexed: 01/12/2024]
Abstract
BACKGROUND The conditioned medium from human dermal fibroblasts (dermal fibroblast-conditioned medium; DFCM) contains a diverse array of secretory proteins, including growth factors and wound repair-promoting proteins. Angiogenesis, a crucial process that facilitates the infiltration of inflammatory cells during wound repair, is induced by a hypoxic environment and inflammatory cytokines. METHODS In this study, we conducted a comprehensive bioinformatic analysis of 337 proteins identified through proteomics analysis of DFCM. We specifically focused on 64 DFCM proteins with potential involvement in angiogenesis. These proteins were further classified based on their characteristics, and we conducted a detailed analysis of their protein-protein interactions. RESULTS Gene Ontology protein classification categorized these 64 DFCM proteins into various classes, including metabolite interconversion enzymes (N = 11), protein modifying enzymes (N = 10), protein-binding activity modulators (N = 9), cell adhesion molecules (N = 6), extracellular matrix proteins (N = 6), transfer/carrier proteins (N = 3), calcium-binding proteins (N = 2), chaperones (N = 2), cytoskeletal proteins (N = 2), RNA metabolism proteins (N = 1), intercellular signal molecules (N = 1), transporters (N = 1), scaffold/adaptor proteins (N = 1), and unclassified proteins (N = 9). Furthermore, our protein-protein interaction network analysis of DFCM proteins revealed two distinct networks: one with medium confidence level interaction scores, consisting of 60 proteins with significant connections, and another at a high confidence level, comprising 52 proteins with significant interactions. CONCLUSIONS Our bioinformatic analysis highlights the presence of a multitude of secretory proteins in DFCM that form significant protein-protein interaction networks crucial for regulating angiogenesis. These findings underscore the critical roles played by DFCM proteins in various stages of angiogenesis during the wound repair process.
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Affiliation(s)
| | | | - Sung Bin Cho
- Yonsei Seran Dermatology and Laser ClinicSeoulSouth Korea
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Badr G, El-Hossary FM, Lasheen FEDM, Negm NZ, Khalaf M, Salah M, Sayed LH, Abdel-Maksoud MA, Elminshawy A. Cold atmospheric plasma induces the curing mechanism of diabetic wounds by regulating the oxidative stress mediators iNOS and NO, the pyroptotic mediators NLRP-3, Caspase-1 and IL-1β and the angiogenesis mediators VEGF and Ang-1. Biomed Pharmacother 2023; 169:115934. [PMID: 38000357 DOI: 10.1016/j.biopha.2023.115934] [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] [Revised: 11/12/2023] [Accepted: 11/21/2023] [Indexed: 11/26/2023] Open
Abstract
It has been demonstrated that cold atmospheric plasma (CAP) accelerates the wound healing process, however the underlying molecular pathways behind this effect remain unclear. Thus, the goal of the proposed investigation is to elucidate the therapeutic advantages of CAP on angiogenesis, pyroptotic, oxidative stress, and inflammatory mediators during the wound-healing mechanisms associated with diabetes. Intraperitoneal administration of streptozotocin (STZ, 60 mg/Kg) of body weight was used to induce type-1 diabetes. Seventy-five male mice were randomized into 3 groups: the control non-diabetic group, the diabetic group that was not treated, and the diabetic group that was treated with CAP. The key mediators of pyroptosis and its impact on the slow healing process of diabetic wounds were examined using histological investigations employing H&E staining, immunohistochemistry, ELISA, and Western blotting analysis. Angiogenesis proteins (VEGF, Ang-1, and HO-1) showed a significant decline in expression concentrations in the diabetic wounds, indicating that diabetic animals' wounds were less likely to heal. Furthermore, compared to the controls, the major mediators of pyroptosis (NLRP-3, IL-1β, and caspase-1), oxidative stress (iNOS and NO), and inflammation (TNF-α and IL-6) have higher expression levels in the diabetic wounds. These factors substantially impede the healing mechanism of diabetic wounds. Interestingly, our results disclosed the therapeutic impacts of CAP treatment in the healing process of diabetic wounds via significantly regulating the expression levels of angiogenesis, pyroptosis, oxidative stress and pro-inflammatory mediators. Our findings demonstrated the curative likelihood of CAP and the underlying mechanisms for enhancing the healing process of diabetic wounds.
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Affiliation(s)
- Gamal Badr
- Zoology Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt.
| | - Fayez M El-Hossary
- Physics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt
| | | | - Niemat Z Negm
- Physics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt
| | - Mohamed Khalaf
- Physics Department, Faculty of Science, Sohag University, 82524 Sohag, Egypt
| | - Mohamed Salah
- Botany and Microbiology Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt; Institut Cochin, Université de Paris, INSERM, CNRS, 75014 Paris, France
| | - Leila H Sayed
- Zoology Department, Faculty of Science, Assiut University, 71516 Assiut, Egypt
| | - Mostafa A Abdel-Maksoud
- Botany and Microbiology Department, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ahmed Elminshawy
- Deptartment of Cardiothoracic Surgery, Faculty of Medicine, Assiut University, Assiut, Egypt
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Tang L, Zhang Z, Lei S, Zhou J, Liu Y, Yu X, Wang J, Wan D, Shi J, Wang S. A temperature and pH dual-responsive injectable self-healing hydrogel prepared by chitosan oligosaccharide and aldehyde hyaluronic acid for promoting diabetic foot ulcer healing. Int J Biol Macromol 2023; 253:127213. [PMID: 37793511 DOI: 10.1016/j.ijbiomac.2023.127213] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 09/26/2023] [Accepted: 10/01/2023] [Indexed: 10/06/2023]
Abstract
Chronic wound, such as skin defect after burn, pressure ulcer, and diabetic foot ulcer is very difficult to cure. Its pathological process is often accompanied with local temperature rise, pH decrease, and other phenomena. Owing to their outstanding hydrophilic, biocompatibility, and responsive properties, hydrogels could accelerate the healing process. In this study, we chose chitosan oligosaccharide (COS) grafted with Pluronic F127 (F127-COS). Aldehyde hyaluronic acid (A-HA) oxidized by NaIO4. And added boric acid (BA) to prepare a thermosensitive and pH-responsive injectable self-healing F127-COS/A-HA/COS/BA (FCAB) hydrogel, loaded with drug deferoxamine (DFO) in order to have an accurate release and promote angiogenesis of diabetic foot ulcer. In vitro experiments had verified that the FCAB hydrogel system loaded with DFO (FCAB/D) could promote migration and angiogenesis of HUVEC. A diabetes rat back wound model further confirmed its role in promoting angiogenesis in wound repair process. The results showed that the FCAB/D hydrogel exhibited unique physicochemical properties, excellent biocompatibility, and significantly enhanced therapeutic effects for diabetic foot ulcer.
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Affiliation(s)
- Lizong Tang
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China; Institute of Disaster and Emergency Medicine, Tianjin University, Weijin Road 92, Tianjin 300072, China
| | - Zeyu Zhang
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Shaojin Lei
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Jie Zhou
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yufei Liu
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Xinyi Yu
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Jie Wang
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Dongdong Wan
- Department of Orthopedic Surgery, Tianjin First Central Hospital, Nankai University, Tianjin 3000192, China.
| | - Jie Shi
- Institute of Disaster and Emergency Medicine, Tianjin University, Weijin Road 92, Tianjin 300072, China; Wenzhou Safety (Emergency) Institute, Tianjin University, Wenzhou 325000, China.
| | - Shufang Wang
- Key Laboratory of Bioactive Materials for Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, China.
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Stelling-Férez J, Cappellacci I, Pandolfi A, Gabaldón JA, Pipino C, Nicolás FJ. Oleanolic acid rescues critical features of umbilical vein endothelial cells permanently affected by hyperglycemia. Front Endocrinol (Lausanne) 2023; 14:1308606. [PMID: 38192424 PMCID: PMC10773851 DOI: 10.3389/fendo.2023.1308606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Accepted: 11/23/2023] [Indexed: 01/10/2024] Open
Abstract
Skin wound healing is a physiological process that involves several cell types. Among them, endothelial cells are required for inflammation resolution and neo-angiogenesis, both necessary for tissue restoration after injury. Primary human umbilical vein endothelial cells (C-HUVECs) are derived from the umbilical cord. When women develop gestational diabetes, chronic exposure to hyperglycemia induces epigenetic modifications in these cells (GD-HUVECs), leading to a permanent pro-inflammatory phenotype and impaired angiogenesis in contrast to control cells. Oleanolic acid (OA) is a bioactive triterpenoid known for its epithelial cell migration promotion stimulation and higher tensile strength of wounds. However, the potentially anti-inflammatory and pro-angiogenic properties of OA are still under investigation. We tested OA on C- and GD-HUVECs under inflammatory conditions induced by low levels of the inflammatory cytokine TNF-α. Reduced expression of adhesion molecules VCAM1, ICAM1, and SELE was obtained in OA-pre-treated C- and GD-HUVECs. Additionally, protein VCAM1 levels were also decreased by OA. Coherently, monocyte adhesion assays showed that a lower number of monocytes adhered to GD-HUVEC endothelium under OA pre-treatment when compared to untreated ones. It is noteworthy that OA improved angiogenesis parameters in both phenotypes, being especially remarkable in the case of GD-HUVECs, since OA strongly rescued their poor tube formation behavior. Moreover, endothelial cell migration was improved in C- and GD-HUVECs in scratch assays, an effect that was further confirmed by focal adhesion (FA) remodeling, revealed by paxillin staining on immunocytochemistry assays. Altogether, these results suggest that OA could be an emergent wound healing agent due to its capacity to rescue endothelial malfunction caused by hyperglycemia.
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Affiliation(s)
- Javier Stelling-Férez
- Department of Nutrition and Food Technology, Health Sciences PhD Program, Universidad Católica de Murcia (UCAM), Murcia, Spain
- Regeneration, Molecular Oncology, and TGF-β, IMIB-Pascual Parrilla, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
| | - Ilaria Cappellacci
- Department of Medical, Oral and Biotechnological Sciences, StemTeCh Group, Center for Advanced Studies and Technology-CAST (ex CeSI-MeT), University G. D’Annunzio Chieti-Pescara, Chieti, Italy
| | - Assunta Pandolfi
- Department of Medical, Oral and Biotechnological Sciences, StemTeCh Group, Center for Advanced Studies and Technology-CAST (ex CeSI-MeT), University G. D’Annunzio Chieti-Pescara, Chieti, Italy
| | - José Antonio Gabaldón
- Department of Nutrition and Food Technology, Health Sciences PhD Program, Universidad Católica de Murcia (UCAM), Murcia, Spain
| | - Caterina Pipino
- Department of Medical, Oral and Biotechnological Sciences, StemTeCh Group, Center for Advanced Studies and Technology-CAST (ex CeSI-MeT), University G. D’Annunzio Chieti-Pescara, Chieti, Italy
| | - Francisco José Nicolás
- Regeneration, Molecular Oncology, and TGF-β, IMIB-Pascual Parrilla, Hospital Clínico Universitario Virgen de la Arrixaca, Murcia, Spain
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Johnson BM, Johnson AM, Heim M, Buckley M, Mortimer B, Berry JL, Sewell-Loftin MK. Biomechanical stimulation promotes blood vessel growth despite VEGFR-2 inhibition. BMC Biol 2023; 21:290. [PMID: 38072992 PMCID: PMC10712065 DOI: 10.1186/s12915-023-01792-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 12/01/2023] [Indexed: 12/18/2023] Open
Abstract
BACKGROUND Angiogenesis, or the growth of new vasculature from existing blood vessels, is widely considered a primary hallmark of cancer progression. When a tumor is small, diffusion is sufficient to receive essential nutrients; however, as the tumor grows, a vascular supply is needed to deliver oxygen and nutrients into the increasing mass. Several anti-angiogenic cancer therapies target VEGF and the receptor VEGFR-2, which are major promoters of blood vessel development. Unfortunately, many of these cancer treatments fail to completely stop angiogenesis in the tumor microenvironment (TME). Since these therapies focus on the biochemical activation of VEGFR-2 via VEGF ligand binding, we propose that mechanical cues, particularly those found in the TME, may be a source of VEGFR-2 activation that promotes growth of blood vessel networks even in the presence of VEGF and VEGFR-2 inhibitors. RESULTS In this paper, we analyzed phosphorylation patterns of VEGFR-2, particularly at Y1054/Y1059 and Y1214, stimulated via either VEGF or biomechanical stimulation in the form of tensile strains. Our results show prolonged and enhanced activation at both Y1054/Y1059 and Y1214 residues when endothelial cells were stimulated with strain, VEGF, or a combination of both. We also analyzed Src expression, which is downstream of VEGFR-2 and can be activated through strain or the presence of VEGF. Finally, we used fibrin gels and microfluidic devices as 3D microtissue models to simulate the TME. We determined that regions of mechanical strain promoted increased vessel growth, even with VEGFR-2 inhibition through SU5416. CONCLUSIONS Overall, understanding both the effects that biomechanical and biochemical stimuli have on VEGFR-2 activation and angiogenesis is an important factor in developing effective anti-angiogenic therapies. This paper shows that VEGFR-2 can be mechanically activated through strain, which likely contributes to increased angiogenesis in the TME. These proof-of-concept studies show that small molecular inhibitors of VEGFR-2 do not fully prevent angiogenesis in 3D TME models when mechanical strains are introduced.
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Affiliation(s)
- Bronte Miller Johnson
- Department of Biomedical Engineering, University of Alabama at Birmingham, 1824 6th Avenue South, Wallace Tumor Institute, Room 630A, Birmingham, AL, 35294, USA
| | - Allison McKenzie Johnson
- Department of Biomedical Engineering, University of Alabama at Birmingham, 1824 6th Avenue South, Wallace Tumor Institute, Room 630A, Birmingham, AL, 35294, USA
| | - Michael Heim
- Department of Biomedical Engineering, University of Alabama at Birmingham, 1824 6th Avenue South, Wallace Tumor Institute, Room 630A, Birmingham, AL, 35294, USA
| | - Molly Buckley
- Department of Biomedical Engineering, University of Alabama at Birmingham, 1824 6th Avenue South, Wallace Tumor Institute, Room 630A, Birmingham, AL, 35294, USA
| | - Bryan Mortimer
- Heersink School of Medicine, University of Alabama at Birmingham, Birmingham, AL, 35233, USA
| | - Joel L Berry
- Department of Biomedical Engineering, University of Alabama at Birmingham, 1824 6th Avenue South, Wallace Tumor Institute, Room 630A, Birmingham, AL, 35294, USA
- O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, 35233, USA
| | - Mary Kathryn Sewell-Loftin
- Department of Biomedical Engineering, University of Alabama at Birmingham, 1824 6th Avenue South, Wallace Tumor Institute, Room 630A, Birmingham, AL, 35294, USA.
- O'Neal Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, AL, 35233, USA.
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Yan Z, Zhang T, Wang Y, Xiao S, Gao J. Extracellular vesicle biopotentiated hydrogels for diabetic wound healing: The art of living nanomaterials combined with soft scaffolds. Mater Today Bio 2023; 23:100810. [PMID: 37810755 PMCID: PMC10550777 DOI: 10.1016/j.mtbio.2023.100810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/08/2023] [Accepted: 09/21/2023] [Indexed: 10/10/2023] Open
Abstract
Diabetic wounds (DWs) pose a major challenge for the public health system owing to their high incidence, complex pathogenesis, and long recovery time; thus, there is an urgent need to develop innovative therapies to accelerate the healing process of diabetic wounds. As natural nanovesicles, extracellular vesicles (EVs) are rich in sources with low immunogenicity and abundant nutritive molecules and exert potent therapeutic effects on diabetic wound healing. To avoid the rapid removal of EVs, a suitable delivery system is required for their controlled release. Owing to the advantages of high porosity, good biocompatibility, and adjustable physical and chemical properties of hydrogels, EV biopotentiated hydrogels can aid in achieving precise and favorable therapy against diabetic wounds. This review highlights the different design strategies, therapeutic effects, and mechanisms of EV biopotentiated hydrogels. We also discussed the future challenges and opportunities of using EV biopotentiated hydrogels for diabetic wound healing.
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Affiliation(s)
- Zhenzhen Yan
- Department of Burn Surgery, The First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Tinglin Zhang
- Changhai Clinical Research Unit, The First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Yuxiang Wang
- Department of Burn Surgery, The First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Shichu Xiao
- Department of Burn Surgery, The First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
| | - Jie Gao
- Changhai Clinical Research Unit, The First Affiliated Hospital of Naval Medical University, Shanghai, 200433, People's Republic of China
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Sanchez Figueroa N, Zheng E, Kuruoglu D, Martinez-Jorge J. The use of Integra Dermal Regeneration Template in the surgical management of revision penile inversion vaginoplasty: A case series. J Plast Reconstr Aesthet Surg 2023; 87:91-97. [PMID: 37826968 DOI: 10.1016/j.bjps.2023.08.001] [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: 03/28/2023] [Revised: 07/04/2023] [Accepted: 08/12/2023] [Indexed: 10/14/2023]
Abstract
Since its initial design and use for the temporary coverage of severe full-thickness burn defects, Integra® (Integra LifeSciences) Dermal Regeneration Template has been increasingly used all over the body, yielding successful results in coverage of wound beds with insufficient vascularity and suboptimal conditions for proper healing. In this study, we report an institutional case series and outcomes of gender-affirming vaginoplasty revision for vaginal lengthening or reopening of the canal via placement of Integra® to assist in optimizing the wound bed for subsequent skin grafting when wound conditions were deemed to be suboptimal. A retrospective chart review was conducted in patients who underwent this technique by a single surgeon (JM) at the authors' institution. Demographics, vaginal depth, and complications were recorded and compared. Our patient population thus far includes 178 primary vaginoplasties, of which 9 of those needing revision were treated with this approach. The age at revision mean was 47 ± 13.5 years, and the body mass index mean was 31 ± 4.1. All patients had comorbidities and five were former smokers. Eight patients had prior revision conducted without Integra®, with a mean of 1.89 ± 1.76 and the time to first revision mean was 15.89 ± 14.2 months. No long-term complications after Integra® reported and most of the patients did not require further revision. The follow-up mean was 8.48 ± 8.66 months. A mean of 6.77 ± 5.35 cm was gained after the Integra® revision (4.92 ± 4.1 cm before versus 12.54 ± 3.07 cm after). The final depth after Integra® + full-thickness skin graft mean was 13.34 ± 4.65 cm. Overall, the depth gain mean was 7.48 ± 5.77 cm; in total, seven patients gained depth after revision with an average of 78% skin graft take. Overall, Integra® presents an alternative option for revision vaginoplasty with complicated wound beds potentially aiding in the healing process before grafting.
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Affiliation(s)
| | - Eugene Zheng
- Division of Plastic Surgery, Department of Surgery, Mayo Clinic, Rochester, MN, USA
| | - Doga Kuruoglu
- Division of Plastic Surgery, Department of Surgery, Mayo Clinic, Rochester, MN, USA
| | - Jorys Martinez-Jorge
- Division of Plastic Surgery, Department of Surgery, Mayo Clinic, Rochester, MN, USA.
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Sayin D, Gundogdu G, Kilic-Erkek O, Gundogdu K, Coban HS, Abban-Mete G. Silk protein sericin: a promising therapy for Achilles tendinopathy-evidence from an experimental rat model. Clin Rheumatol 2023; 42:3361-3373. [PMID: 37733079 DOI: 10.1007/s10067-023-06767-6] [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: 06/16/2023] [Revised: 08/29/2023] [Accepted: 09/02/2023] [Indexed: 09/22/2023]
Abstract
OBJECTIVE This study investigated the efficacy of sericin in treating experimental Achilles tendinopathy (AT) in rats via the transforming growth factor-beta (TGF-β)/mothers against decapentaplegic (Smad) pathway compared with diclofenac sodium (DS). METHOD An AT model was induced in rats using collagenase enzyme type I and divided into 5 groups: C (control), AT (diseased control), ATS (AT treated with sericin), ATN (AT treated with DS), and ATSN (AT treated with sericin and DS). Sericin injection was given on the 3rd and 6th days by intratendinous injection (0.8 g/kg/mL), and DS was administered for 14 days by oral gavage (1.1 mg/kg/day). Serum concentrations of total oxidant-antioxidant status (TOS-TAS), TGF-β1, decorin, Smad2, and connective tissue growth factor (CTGF) were measured. Histopathologic and immunohistochemical (IHC) studies were conducted on Achilles tendon samples. RESULTS The TOS, oxidative stress index (OSI), TGF-β1, Smad2, CTGF, and decorin serum concentrations were significantly higher in AT than in C and significantly lower in ATS than in AT (P<0.05). Histopathological examination revealed that irregular fibers, degeneration, and round cell nuclei were significantly elevated in AT. Spindle-shaped fibers were similar to those in C, and degeneration was reduced in ATS. TGF-β1 and Smad2/3 expression was increased, and collagen type I alpha-1 (Col1A1) expression was decreased in AT vs. C (P=0.001). In the ATS, TGF-β1 and Smad2/3 expression decreased, and Col1A1 expression increased. The Bonar score significantly increased in the AT group (P =0.001) and significantly decreased in the ATS group (P =0.027). CONCLUSION Sericin shows potential efficacy in reducing oxidative stress and modulating the TGF-β/Smad pathway in experimental AT models in rats. It may be a promising therapeutic agent for AT, warranting further clinical studies for validation. Key Points • This study revealed that sericin mitigates AT-induced damage through the TGF-β/Smad pathway in an AT rat model. • ELISA and IHC investigations corroborated the effectiveness of sericin via the pivotal TGF-β/Smad pathway in tissue repair. • Evidence indicates that sericin enhances collagen synthesis,shapes tendon fiber structure, and diminishes histopathological degeneration. • Sericin's antioxidant properties were reaffirmed in its AT treatment application.
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Affiliation(s)
- Dilek Sayin
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Gulsah Gundogdu
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey.
| | - Ozgen Kilic-Erkek
- Department of Physiology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
| | - Koksal Gundogdu
- Department of Orthopedics and Traumatology, Denizli State Hospital, Denizli, Turkey
| | - Hatice Siyzen Coban
- Department of Histology and Embryology, Zeynep Kamil Women and Children Diseases Training and Research Hospital, Istanbul, Turkey
| | - Gulcin Abban-Mete
- Department of Histology and Embryology, Faculty of Medicine, Pamukkale University, Denizli, Turkey
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