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Zhang GL, Porter MJ, Awol AK, Orsburn BC, Canner SW, Gray JJ, O'Meally RN, Cole RN, Schnaar RL. The Human Ganglioside Interactome in Live Cells Revealed Using Clickable Photoaffinity Ganglioside Probes. J Am Chem Soc 2024; 146:17801-17816. [PMID: 38887845 DOI: 10.1021/jacs.4c03196] [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: 06/20/2024]
Abstract
Gangliosides, sialic acid bearing glycosphingolipids, are components of the outer leaflet of plasma membranes of all vertebrate cells. They contribute to cell regulation by interacting with proteins in their own membranes (cis) or their extracellular milieu (trans). As amphipathic membrane constituents, gangliosides present challenges for identifying their ganglioside protein interactome. To meet these challenges, we synthesized bifunctional clickable photoaffinity gangliosides, delivered them to plasma membranes of cultured cells, then captured and identified their interactomes using proteomic mass spectrometry. Installing probes on ganglioside lipid and glycan moieties, we captured cis and trans ganglioside-protein interactions. Ganglioside interactomes varied with the ganglioside structure, cell type, and site of the probe (lipid or glycan). Gene ontology revealed that gangliosides engage with transmembrane transporters and cell adhesion proteins including integrins, cadherins, and laminins. The approach developed is applicable to other gangliosides and cell types, promising to provide insights into molecular and cellular regulation by gangliosides.
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Affiliation(s)
- Gao-Lan Zhang
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Mitchell J Porter
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Abduselam K Awol
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Benjamin C Orsburn
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Samuel W Canner
- Program in Molecular Biophysics, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Jeffrey J Gray
- Program in Molecular Biophysics, Johns Hopkins University, Baltimore, Maryland 21218, United States
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Robert N O'Meally
- Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Robert N Cole
- Department of Biological Chemistry, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
| | - Ronald L Schnaar
- Department of Pharmacology and Molecular Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
- Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, United States
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2
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Yu Q, Wang Q, Zhang L, Deng W, Cao X, Wang Z, Sun X, Yu J, Xu X. The applications of 3D printing in wound healing: the external delivery of stem cells and antibiosis. Adv Drug Deliv Rev 2023; 197:114823. [PMID: 37068658 DOI: 10.1016/j.addr.2023.114823] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 04/07/2023] [Accepted: 04/11/2023] [Indexed: 04/19/2023]
Abstract
As the global number of chronic wound patients rises, the financial burden and social pressure on patients increase daily. Stem cells have emerged as promising tissue engineering seed cells due to their enriched sources, multidirectional differentiation ability, and high proliferation rate. However, delivering them in vitro for the treatment of skin injury is still challenging. In addition, bacteria from the wound site and the environment can significantly impact wound healing. In the last decade, 3D bioprinting has dramatically enriched cell delivery systems. The produced scaffolds by this technique can be precisely localized within cells and perform antibacterial actions. In this review, we summarized the 3D bioprinting-based external delivery of stem cells and their antibiosis to improve wound healing.
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Affiliation(s)
- Qingtong Yu
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China
| | - Qilong Wang
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China
| | - Linzhi Zhang
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China
| | - Wenwen Deng
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China
| | - Xia Cao
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China
| | - Zhe Wang
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China
| | - Xuan Sun
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China
| | - Jiangnan Yu
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China
| | - Ximing Xu
- School of Pharmacy, Jiangsu University, Zhenjiang 212013, PR China.
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3
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Chiral Supramolecular Hydrogel Loaded with Dimethyloxalyglycine to Accelerate Chronic Diabetic Wound Healing by Promoting Cell Proliferation and Angiogenesis. Gels 2022; 8:gels8070437. [PMID: 35877522 PMCID: PMC9321917 DOI: 10.3390/gels8070437] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/01/2022] [Accepted: 07/05/2022] [Indexed: 12/15/2022] Open
Abstract
Chronic refractory wounds are one of the most serious complications of diabetes, and the effects of common treatments are limited. Chiral hydrogel combined with dimethyloxalyglycine (DMOG) as a dressing is a promising strategy for the treatment of chronic wounds. In this research, we have developed a DMOG-loaded supramolecular chiral amino-acid-derivative hydrogel for wound dressings for full-thickness skin regeneration of chronic wounds. The properties of the materials, the ability of sustained release drugs, and the ability to promote angiogenesis were tested in vitro, and the regeneration rate and repair ability of full-thickness skin were tested in vivo. The chiral hydrogel had the ability to release drugs slowly. It can effectively promote cell migration and angiogenesis in vitro, and promote full-thickness skin regeneration and angiogenesis in vivo. This work offers a new approach for repairing chronic wounds completely through a supramolecular chiral hydrogel loaded with DMOG.
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Marvasi M, Monici M, Pantalone D, Cavalieri D. Exploitation of Skin Microbiota in Wound Healing: Perspectives During Space Missions. Front Bioeng Biotechnol 2022; 10:873384. [PMID: 35573226 PMCID: PMC9098812 DOI: 10.3389/fbioe.2022.873384] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 04/11/2022] [Indexed: 01/05/2023] Open
Abstract
Wound healing is slowed in Space. Microgravity and possible physical factors associated with Space affect alterations in fibroblast, matrix formation, dysregulation in apoptosis and inflammation. The microbial populations settled on skin, space modules, in space suits, are also playing a pivotal role, as wound healing is also affected by the microbial community. We propose a perspective that includes four domines for the application of human skin microbiota for wound healing in Space: The natural antimicrobial properties of the skin microbiota, the crosstalk of the skin microbiota with the immune system during wound healing, the contribution of the microbiota in precision medicine, and the role of gut-skin and gut-brain axes. A stronger understanding of the connections and metabolic network among bacteria, fungi, the host’s immune system and the host metabolism will support the basis for a better wound healing in Space.
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Affiliation(s)
| | - Monica Monici
- ASAcampus Joint Laboratory, ASA Res. Div., Deptartment of Experimental and Clinical Biomedical Sciences “Mario Serio”, University of Florence, Florence, Italy
| | - Desirée Pantalone
- Emergency Surgery Unit-Trauma Team, Emergency Department, Department of Experimental and Clinical Medicine, Careggi University Hospital, University of Florence, Florence, Italy
| | - Duccio Cavalieri
- Department of Biology, University of Florence, Florence, Italy
- *Correspondence: Duccio Cavalieri,
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5
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Mi J, Xie C, Zeng L, Zhu Z, Chen N, He Q, Xu X, Xie H, Zhou J, Li L, Liao J. Bacillus subtilis WB800N alleviates diabetic wounds in mice by regulating gut microbiota homeostasis and TLR2. J Appl Microbiol 2022; 133:436-447. [PMID: 35332963 DOI: 10.1111/jam.15547] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Revised: 03/08/2022] [Accepted: 03/21/2022] [Indexed: 11/29/2022]
Abstract
OBJECTIVE This study aims to investigate the effect of Bacillus subtilis WB800N on diabetic wounds. METHODS Hematoxylin & eosin (H&E) staining was used to observe the healing of skin wounds. Collagen deposition was assessed by Masson staining. Western blotting and qRT-PCR were used to detect vascular endothelial-related factors (VWF), CD31, TLR2, NLRP3, ASC, and Caspase-1 expression. 16S rDNA sequencing detected microbiota distribution. The concentrations of IL-1β and IL-37 were measured by ELISA. Apoptosis was measured by the TUNEL assay. RESULTS Compared with the control group, the wound healing was delayed in diabetic mice. The wound area in the Bacillus subtilis group decreased more significantly than the diabetic wounds group. H&E staining showed that Bacillus subtilis WB800N promoted wound healing and increased re-epithelialization. Masson staining showed that Bacillus subtilis WB800N increased collagen deposition in diabetic wounds mice. Bacillus subtilis WB800N upregulated VWF and CD31 protein expression in diabetic wounds mice. The 16S rDNA results showed that Bacillus subtilis WB800N reduced the diversity of the gut microbiota of diabetic wounds mice and regulated the microbial composition. At the genus level, Bacillus subtilis WB800N reduced the relative abundance of Muribaculaceae and CG-005 in diabetic wounds mice, while increasing the relative abundance of Lactobacillus. Bacillus subtilis WB800N increased the expression of TLR2, NLRP3, ASC, and Caspase-1. Bacillus subtilis WB800N increased the concentrations of IL-1β and IL-37 in serum. Bacillus subtilis WB800N upregulated cell apoptosis. The TLR2 antagonist Sparstolonin B (SsnB) reduced the expression of TLR2, NLRP3, ASC, Caspase-1, IL-1β, and IL-37 and the apoptosis in diabetic wounds mice, while the combined intervention of Bacillus subtilis and SsnB reversed the effect of SsnB treatment alone. CONCLUSION Bacillus subtilis WB800N alleviated diabetic wounds healing by regulating gut microbiota homeostasis and TLR2. SIGNIFICANCE AND IMPACT OF RESEARCH Our findings might provide potential therapeutic targets for diabetic wounds.
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Affiliation(s)
- Jing Mi
- Hospital-Acquired Infection Control Department, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Cong Xie
- Departments of Medical Cosmetology, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Li Zeng
- Departments of Medical Cosmetology, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Ziwen Zhu
- Departments of Medical Cosmetology, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Nian Chen
- Departments of Medical Cosmetology, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Qianzhen He
- Departments of Medical Cosmetology, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Xiangping Xu
- Departments of Medical Cosmetology, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Hongju Xie
- Departments of Plastic Surgery, the Second Affiliated Hospital of Hainan Medical University, Haikou
| | - Jianda Zhou
- Departments of Plastic and Reconstructive Surgery, the Third Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Li Li
- Departments of Gynaecology and Obstetrics, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China.,Departments of Gynaecology and Obstetrics, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China
| | - Junlin Liao
- Departments of Medical Cosmetology, the First Affiliated Hospital, University of South China, Hengyang, Hunan, China.,Center of Medical Cosmetology, The First Affiliated Hospital, University of South China, Hengyang, Hunan, China
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Sarmento MJ, Owen MC, Ricardo JC, Chmelová B, Davidović D, Mikhalyov I, Gretskaya N, Hof M, Amaro M, Vácha R, Šachl R. The impact of the glycan headgroup on the nanoscopic segregation of gangliosides. Biophys J 2021; 120:5530-5543. [PMID: 34798138 PMCID: PMC8715245 DOI: 10.1016/j.bpj.2021.11.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/26/2021] [Accepted: 11/10/2021] [Indexed: 01/04/2023] Open
Abstract
Gangliosides form an important class of receptor lipids containing a large oligosaccharide headgroup whose ability to self-organize within lipid membranes results in the formation of nanoscopic platforms. Despite their biological importance, the molecular basis for the nanoscopic segregation of gangliosides is not clear. In this work, we investigated the role of the ganglioside headgroup on the nanoscale organization of gangliosides. We studied the effect of the reduction in the number of sugar units of the ganglioside oligosaccharide chain on the ability of gangliosides GM1, GM2, and GM3 to spontaneously self-organize into lipid nanodomains. To reach nanoscopic resolution and to identify molecular forces that drive ganglioside segregation, we combined an experimental technique, Förster resonance energy transfer analyzed by Monte-Carlo simulations offering high lateral and trans-bilayer resolution with molecular dynamics simulations. We show that the ganglioside headgroup plays a key role in ganglioside self-assembly despite the negative charge of the sialic acid group. The nanodomains range from 7 to 120 nm in radius and are mostly composed of the surrounding bulk lipids, with gangliosides being a minor component of the nanodomains. The interactions between gangliosides are dominated by the hydrogen bonding network between the headgroups, which facilitates ganglioside clustering. The N-acetylgalactosamine sugar moiety of GM2, however, seems to impair the stability of these clusters by disrupting hydrogen bonding of neighboring sugars, which is in agreement with a broad size distribution of GM2 nanodomains. The simulations suggest that the formation of nanodomains is likely accompanied by several conformational changes in the gangliosides, which, however, have little impact on the solvent exposure of these receptor groups. Overall, this work identifies the key physicochemical factors that drive nanoscopic segregation of gangliosides.
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Affiliation(s)
- Maria J Sarmento
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Michael C Owen
- CEITEC - Central European Institute of Technology, Masaryk University, Brno, Czech Republic; Institute of Chemistry, Faculty of Materials Science and Engineering, University of Miskolc, 3515 Miskolc, Hungary
| | - Joana C Ricardo
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Barbora Chmelová
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic; Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic
| | - David Davidović
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Ilya Mikhalyov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Science, Moscow Ul. Miklukho-Maklaya, Moscow 117997, Russia
| | - Natalia Gretskaya
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry of the Russian Academy of Science, Moscow Ul. Miklukho-Maklaya, Moscow 117997, Russia
| | - Martin Hof
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Mariana Amaro
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic
| | - Robert Vácha
- CEITEC - Central European Institute of Technology, Masaryk University, Brno, Czech Republic
| | - Radek Šachl
- J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences, Prague, Czech Republic.
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Zhong H, Qian J, Xiao Z, Chen Y, He X, Sun C, Zhao Z. MicroRNA-133b Inhibition Restores EGFR Expression and Accelerates Diabetes-Impaired Wound Healing. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:9306760. [PMID: 34873433 PMCID: PMC8643265 DOI: 10.1155/2021/9306760] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 10/18/2021] [Indexed: 12/15/2022]
Abstract
Diabetic foot ulcers (DFUs) are caused by impairments in peripheral blood vessel angiogenesis and represent a great clinical challenge. Although various innovative techniques and drugs have been developed for treating DFUs, therapeutic outcomes remain unsatisfactory. Using the GEO database, we obtained transcriptomic microarray data for DFUs and control wounds and detected a significant downregulation of epidermal growth factor receptor (EGFR) in DFUs. We cultured human umbilical vein endothelial cells (HUVECs) and noted downregulated EGFR expression following high-glucose exposure in vitro. Further, we observed decreased HUVEC proliferation and migration and increased apoptosis after shRNA-mediated EGFR silencing in these cells. In mice, EGFR inhibition via focal EGFR-shRNA injection delayed wound healing. Target prediction analysis followed by dual-luciferase reporter assays indicated that microRNA-133b (miR-133b) is a putative upstream regulator of EGFR expression. Increased miR-133b expression was observed in both glucose-treated HUVECs and wounds from diabetes patients, but no such change was observed in controls. miR-133b suppression enhanced the proliferation and angiogenic potential of cultured HUVECs and also accelerated wound healing. Although angiogenesis is not the sole mechanism affected in DFU, these findings suggest that the miR-133b-induced downregulation of EGFR may contribute to delayed wound healing in diabetes. Hence, miR-133b inhibition may be a useful strategy for treating diabetic wounds.
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Affiliation(s)
- Haobo Zhong
- Department of Orthopaedics, Huizhou First Hospital, Huizhou 516000, China
| | - Jin Qian
- Department of Internal Medicine, Suizhou Hospital, Hubei University of Medicine, Suizhou 441300, China
| | - Zhihong Xiao
- The Second Affiliated Hospital, Department of Spinal Surgery, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, China
| | - Yan Chen
- Department of Hand Surgery, Wuhan Fourth Hospital, Puai Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiangchun He
- Department of Internal Medicine, Suizhou Hospital, Hubei University of Medicine, Suizhou 441300, China
| | - Chunhan Sun
- Department of Orthopaedics, Huizhou First Hospital, Huizhou 516000, China
| | - Zhiming Zhao
- Department of Orthopedics, Suizhou Hospital, Hubei University of Medicine, Suizhou 441300, China
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8
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Liu H, Cao J, Balluff B, Jongen AC, Gijbels MJ, Melenhorst J, Heeren RM, Bouvy ND. Examination of lipid profiles in abdominal fascial healing using MALDI-TOF to identify potential therapeutic targets. J Mass Spectrom Adv Clin Lab 2021; 20:35-41. [PMID: 34820669 PMCID: PMC8600998 DOI: 10.1016/j.jmsacl.2021.06.002] [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: 10/18/2020] [Revised: 06/01/2021] [Accepted: 06/03/2021] [Indexed: 11/20/2022] Open
Abstract
Lipids change overtime in normal fascial healing in the early post-surgery period. Specific lipid species are correlated with the changes of inflammation cells and fibroblasts. Lipid species in the present study are considered as predictive markers for the formation of incisional hernia.
Background Failure of fascial healing in the abdominal wall can result in incisional hernia, which is one of the most common complications after laparotomy. Understanding the molecular healing process of abdominal fascia may provide lipid markers of incisional hernia or therapeutic targets that allow prevention or treatment of incisional hernias. Purpose This study aims to investigate temporal and in situ changes of lipids during the normal healing process of abdominal fascia in the first postoperative week. Methods Open hemicolectomy was performed in a total of 35 Wistar rats. The midline fascia was closed identically for all rats using a single continuous suturing technique. These animals were sacrificed with equal numbers (n = 5) at each of 7-time points (6, 12, 24, 48, 72, 120, and 168 h. The local and temporal changes of lipids were examined with mass spectrometry imaging and correlated to histologically scored changes during healing using hematoxylin and eosin staining. Results Two phosphatidylcholine lipid species (PC O-38:5 and PC 38:4) and one phosphatidylethanolamine lipid (PE O-16:1_20:4) were found to significantly correlate with temporal changes of inflammation. A phosphatidylcholine (PC 32:0) and a monosialodihexosylganglioside (GM3 34:1;2) were found to correlate with fibroblast cell growth. Conclusion Glycerophospholipids and gangliosides are strongly involved in the normal healing process of abdominal fascia and their locally fluctuating concentrations are considered as potential lipid markers and therapeutic targets of fascial healing.
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Key Words
- AA, Arachidonic acid
- CL, Cardiolipin
- CerPE, Ceramide phosphorylethanolamine
- Fascia
- GM3, Monosialodihexosylganglioside
- Incisional hernia
- LPA, Lysophosphatidic acid
- LPC, Lysophosphatidylcholine
- Lipids
- MMPE, Monomethyl-phosphatidylethanolamine
- Mass spectrometry imaging
- PA, Phosphatidic acid
- PC, Phosphatidylcholine
- PE, Phosphatidylethanolamine
- PI, Phosphatidylinositol
- SM, Sphingomyelin
- Wound healing
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Affiliation(s)
- Hong Liu
- Department of Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
- Corresponding author at: Department of General Surgery, Maastricht University Medical Centre, PO Box 5800, 6202 AZ Maastricht, The Netherlands.
| | - Jianhua Cao
- Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, Maastricht, The Netherlands
| | - Benjamin Balluff
- Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, Maastricht, The Netherlands
| | - Audrey C.H.M. Jongen
- Department of Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Marion J. Gijbels
- Department of Medical Biochemistry, Experimental Vascular Biology, Amsterdam UMC, University of Amsterdam, Amsterdam, The Netherlands
- Department of Pathology CARIM, Cardiovascular Research Institute Maastricht, GROW-School for Oncology and Developmental Biology, Maastricht University, Maastricht, The Netherlands
| | - Jarno Melenhorst
- Department of Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
| | - Ron M.A. Heeren
- Maastricht MultiModal Molecular Imaging Institute (M4I), Maastricht University, Maastricht, The Netherlands
| | - Nicole D. Bouvy
- Department of Surgery, Maastricht University Medical Centre, Maastricht, The Netherlands
- NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, The Netherlands
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9
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Miricescu D, Badoiu SC, Stanescu-Spinu II, Totan AR, Stefani C, Greabu M. Growth Factors, Reactive Oxygen Species, and Metformin-Promoters of the Wound Healing Process in Burns? Int J Mol Sci 2021; 22:ijms22179512. [PMID: 34502429 PMCID: PMC8431501 DOI: 10.3390/ijms22179512] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/26/2021] [Accepted: 08/30/2021] [Indexed: 12/19/2022] Open
Abstract
Burns can be caused by various factors and have an increased risk of infection that can seriously delay the wound healing process. Chronic wounds caused by burns represent a major health problem. Wound healing is a complex process, orchestrated by cytokines, growth factors, prostaglandins, free radicals, clotting factors, and nitric oxide. Growth factors released during this process are involved in cell growth, proliferation, migration, and differentiation. Reactive oxygen species are released in acute and chronic burn injuries and play key roles in healing and regeneration. The main aim of this review is to present the roles of growth factors, reactive oxygen species, and metformin in the healing process of burn injuries.
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Affiliation(s)
- Daniela Miricescu
- Department of Biochemistry, Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania; (D.M.); (A.R.T.); (M.G.)
| | - Silviu Constantin Badoiu
- Department of Anatomy and Embriology, Faculty of Medicine, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania
- Department of Plastic and Reconstructive Surgery, Life Memorial Hospital, 365 Grivitei Street, 010719 Bucharest, Romania
- Correspondence: (S.C.B.); (I.-I.S.-S.)
| | - Iulia-Ioana Stanescu-Spinu
- Department of Biochemistry, Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania; (D.M.); (A.R.T.); (M.G.)
- Correspondence: (S.C.B.); (I.-I.S.-S.)
| | - Alexandra Ripszky Totan
- Department of Biochemistry, Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania; (D.M.); (A.R.T.); (M.G.)
| | - Constantin Stefani
- Department of Family Medicine and Clinical Base, Dr. Carol Davila Central Military Emergency University Hospital, 010825 Bucharest, Romania;
| | - Maria Greabu
- Department of Biochemistry, Faculty of Dental Medicine, Carol Davila University of Medicine and Pharmacy, 8 Eroii Sanitari Blvd, 050474 Bucharest, Romania; (D.M.); (A.R.T.); (M.G.)
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10
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Yu H, Gadi MR, Bai Y, Zhang L, Li L, Yin J, Wang PG, Chen X. Chemoenzymatic Total Synthesis of GM3 Gangliosides Containing Different Sialic Acid Forms and Various Fatty Acyl Chains. J Org Chem 2021; 86:8672-8682. [PMID: 34152144 DOI: 10.1021/acs.joc.1c00450] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Gangliosides are sialic acid-containing glycosphingolipids that have been found in the cell membranes of all vertebrates. Their important biological functions are contributed by both the glycan and the ceramide lipid components. GM3 is a major ganglioside and a precursor for many other more complex gangliosides. To obtain structurally diverse GM3 gangliosides containing various sialic acid forms and different fatty acyl chains in low cost, an improved process was developed to chemically synthesize lactosyl sphingosine from an inexpensive l-serine derivative. It was then used to obtain GM3 sphingosines from diverse modified sialic acid precursors by an efficient one-pot multienzyme sialylation system containing Pasteurella multocida sialyltransferase 3 (PmST3) with in situ generation of sugar nucleotides. A highly effective chemical acylation and facile C18-cartridge purification process was then used to install fatty acyl chains of varying lengths and different modifications. The chemoenzymatic method represents a powerful total synthetic strategy to access a library of structurally defined GM3 gangliosides to explore their functions.
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Affiliation(s)
- Hai Yu
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Madhusudhan Reddy Gadi
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Yuanyuan Bai
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Libo Zhang
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
| | - Lei Li
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Jun Yin
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States.,Center for Diagnostics & Therapeutics, Georgia State University, Atlanta, Georgia 30303, United States
| | - Peng G Wang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Xi Chen
- Department of Chemistry, University of California, One Shields Avenue, Davis, California 95616, United States
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Engineering of diseased human skin equivalent using 3D cell printing for representing pathophysiological hallmarks of type 2 diabetes in vitro. Biomaterials 2021; 272:120776. [PMID: 33798956 DOI: 10.1016/j.biomaterials.2021.120776] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 02/26/2021] [Accepted: 03/21/2021] [Indexed: 02/06/2023]
Abstract
Despite many significant advances in 3D cell printing for skin, a disease model displaying the pathological processes present in the native skin has not been reported yet. Therefore, we were motivated for modeling a 3D diseased skin tissue with pathophysiological hallmarks of type 2 diabetes in vitro based on 3D cell printing technique. By stimulating epidermal-dermal intercellular crosstalk found in the native skin, it was hypothesized that normal keratinocytes would be differentiated as diabetic epidermis when interacting with the diabetic dermal compartment. To prove this, a novel wounded skin model was successfully devised during tissue maturation in vitro. Interestingly, the slow re-epithelization was observed in our diabetic model, which is a representative hallmark of diabetic skin. Using the versatility of 3D cell printing, the structural similarities and diabetic properties of the model were further augmented by addition of perfusable vascularized diabetic hypodermis. Insulin resistance, adipocyte hypertrophy, inflammatory reactions, and vascular dysfunction, as the typical hallmarks in diabetes, were found under hyperglycemia. Finally, the feasibility of this new disease model for drug development was successfully demonstrated through application of test drugs. We trust that this study provides a pioneering step towards 3D cell printing-based in vitro skin disease modeling.
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Roles of Gangliosides in Hypothalamic Control of Energy Balance: New Insights. Int J Mol Sci 2020; 21:ijms21155349. [PMID: 32731387 PMCID: PMC7432706 DOI: 10.3390/ijms21155349] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 07/20/2020] [Accepted: 07/26/2020] [Indexed: 12/19/2022] Open
Abstract
Gangliosides are essential components of cell membranes and are involved in a variety of physiological processes, including cell growth, differentiation, and receptor-mediated signal transduction. They regulate functions of proteins in membrane microdomains, notably receptor tyrosine kinases such as insulin receptor (InsR) and epidermal growth factor receptor (EGFR), through lateral association. Studies during the past two decades using knockout (KO) or pharmacologically inhibited cells, or KO mouse models for glucosylceramide synthase (GCS; Ugcg), GM3 synthase (GM3S; St3gal5), and GD3 synthase (GD3S; St8sia1) have revealed essential roles of gangliosides in hypothalamic control of energy balance. The a-series gangliosides GM1 and GD1a interact with leptin receptor (LepR) and promote LepR signaling through activation of the JAK2/STAT3 pathway. Studies of GM3S KO cells have shown that the extracellular signal-regulated kinase (ERK) pathway, downstream of the LepR signaling pathway, is also modulated by gangliosides. Recent studies have revealed crosstalk between the LepR signaling pathway and other receptor signaling pathways (e.g., InsR and EGFR pathways). Gangliosides thus have the ability to modulate the effects of leptin by regulating functions of such receptors, and by direct interaction with LepR to control signaling.
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Abstract
Gangliosides comprise a varied family of glycosphingolipid structures bearing one or more sialic acid residues. They are found in all mammalian tissues but are most abundant in the brain, where they represent the quantitatively major class of sialoglycans. As prominent molecular determinants on cell surfaces, they function as molecular-recognition partners for diverse glycan-binding proteins ranging from bacterial toxins to endogenous cell-cell adhesion molecules. Gangliosides also regulate the activity of plasma membrane proteins, including protein tyrosine kinases, by lateral association in the same membranes in which they reside. Their roles in molecular recognition and membrane protein regulation implicate gangliosides in human physiology and pathology, including infectious diseases, diabetes, cancer, and neurodegeneration. The varied structures and biosynthetic pathways of gangliosides are presented here, along with representative examples of their biological functions in health and disease.
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