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Pan X, You C, Wu P, Wang X, Han C. The optimization of PLGA knitted mesh reinforced-collagen/chitosan scaffold for the healing of full-thickness skin defects. J Biomed Mater Res B Appl Biomater 2023; 111:763-774. [PMID: 36367718 PMCID: PMC10099260 DOI: 10.1002/jbm.b.35187] [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: 04/12/2021] [Revised: 06/08/2022] [Accepted: 07/06/2022] [Indexed: 11/13/2022]
Abstract
Collagen-based scaffolds reveals promising to repair severe skin defects. The mechanical strength of collagen-based scaffold (CCS) limited its clinical application. Embedding poly(lactic-co-glycolic) acid (PLGA) knitted mesh into CCS improves the mechanical strength of the scaffold. This study was conducted to optimize the configuration of PLGA knitted mesh-collagen-chitosan scaffold (PCCS), and explore possible mechanisms. PLGA knitted mesh was embedded in CCS through freeze-drying method. With the PLGA knitted mesh located at the bottom, middle, or both bottom and top layers of the CCS, three kinds of PCCS were developed. A full-thickness skin wound model was established in Sprague Dawley rats to evaluate the therapeutic effects of different PCCS against CCS. The properties and healing effect of the scaffolds were investigated. Several growth factors and chemotactic factors, that is, VEGF, PDGF, CD31, α-SMA, TGF-β1, and TGF-β3 were analyzed and evaluated. Re-epithelialization and angiogenesis were observed in all animal groups with the treatment of three kinds of PCCS scaffolds and the CCS scaffold (control). The protein and gene expression of VEGF, PDGF, CD31, α-SMA, TGF-β1, and TGF-β3 showed different dynamics at different time points. Based on the healing effects and the expression of growth factors and chemotactic factors, scaffold with the PLGA knitted mesh located at the bottom layer of the CCS demonstrated the best healing effect and accelerated re-epithelialization and angiogenesis among all the scaffolds evaluated. PCCS with the PLGA mesh located in the bottom layer of the scaffold accelerated wound healing by creating a more supportive environment for re-epithelialization and angiogenesis.
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Affiliation(s)
- Xuanliang Pan
- Department of Burns and Wound Repair, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province, Hangzhou, People's Republic of China
| | - Chuangang You
- Department of Burns and Wound Repair, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province, Hangzhou, People's Republic of China
| | - Pan Wu
- Department of Burns and Wound Repair, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province, Hangzhou, People's Republic of China
| | - Xingang Wang
- Department of Burns and Wound Repair, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province, Hangzhou, People's Republic of China
| | - Chunmao Han
- Department of Burns and Wound Repair, The Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, People's Republic of China.,Key Laboratory of The Diagnosis and Treatment of Severe Trauma and Burn of Zhejiang Province, Hangzhou, People's Republic of China
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2
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Rennolds CW, Bely AE. Integrative biology of injury in animals. Biol Rev Camb Philos Soc 2023; 98:34-62. [PMID: 36176189 PMCID: PMC10087827 DOI: 10.1111/brv.12894] [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: 08/25/2021] [Revised: 07/29/2022] [Accepted: 08/02/2022] [Indexed: 01/12/2023]
Abstract
Mechanical injury is a prevalent challenge in the lives of animals with myriad potential consequences for organisms, including reduced fitness and death. Research on animal injury has focused on many aspects, including the frequency and severity of wounding in wild populations, the short- and long-term consequences of injury at different biological scales, and the variation in the response to injury within or among individuals, species, ontogenies, and environmental contexts. However, relevant research is scattered across diverse biological subdisciplines, and the study of the effects of injury has lacked synthesis and coherence. Furthermore, the depth of knowledge across injury biology is highly uneven in terms of scope and taxonomic coverage: much injury research is biomedical in focus, using mammalian model systems and investigating cellular and molecular processes, while research at organismal and higher scales, research that is explicitly comparative, and research on invertebrate and non-mammalian vertebrate species is less common and often less well integrated into the core body of knowledge about injury. The current state of injury research presents an opportunity to unify conceptually work focusing on a range of relevant questions, to synthesize progress to date, and to identify fruitful avenues for future research. The central aim of this review is to synthesize research concerning the broad range of effects of mechanical injury in animals. We organize reviewed work by four broad and loosely defined levels of biological organization: molecular and cellular effects, physiological and organismal effects, behavioural effects, and ecological and evolutionary effects of injury. Throughout, we highlight the diversity of injury consequences within and among taxonomic groups while emphasizing the gaps in taxonomic coverage, causal understanding, and biological endpoints considered. We additionally discuss the importance of integrating knowledge within and across biological levels, including how initial, localized responses to injury can lead to long-term consequences at the scale of the individual animal and beyond. We also suggest important avenues for future injury biology research, including distinguishing better between related yet distinct injury phenomena, expanding the subjects of injury research to include a greater variety of species, and testing how intrinsic and extrinsic conditions affect the scope and sensitivity of injury responses. It is our hope that this review will not only strengthen understanding of animal injury but will contribute to building a foundation for a more cohesive field of 'injury biology'.
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Affiliation(s)
- Corey W Rennolds
- Department of Biology, University of Maryland, College Park, MD, 20742, USA
| | - Alexandra E Bely
- Department of Biology, University of Maryland, College Park, MD, 20742, USA
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3
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Bogan JE. Analytical and Clinical Evaluation of Two Methods for Measuring Erythrocyte Sedimentation Rate in Eastern Indigo Snakes ( Drymarchon couperi). Animals (Basel) 2023; 13:ani13030464. [PMID: 36766352 PMCID: PMC9913399 DOI: 10.3390/ani13030464] [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: 01/02/2023] [Revised: 01/23/2023] [Accepted: 01/24/2023] [Indexed: 01/31/2023] Open
Abstract
Erythrocyte sedimentation rate (ESR) is a hematological test that can detect inflammatory activity within the body. Although not specific for any particular disease, ESR is often used as a screening "sickness indicator" due to its reliability and low cost. The Westergren method is a manual ESR technique commonly used but requires special graduated pipettes and over 1mL of whole blood, precluding its use in smaller patients where limited sample volumes can be obtained. A modified micro-ESR technique has been described using hematocrit capillary tubes but is used less commonly. ESR has been reported to be a useful inflammatory indicator in gopher tortoises (Gopherus polyphemus) and box turtles (Terrapene spp.) but not in Florida cottonmouth snakes (Agkistrodon conanti). Having an inexpensive screening test for inflammation can help guide medical decisions within conservation efforts of imperiled species. This study evaluated the correlation between these two ESR methodologies in threatened eastern indigo snakes (Drymarchon couperi, EIS) and found a very strong correlation (rs = 0.897), without constant or proportional biases and a reference interval of 0 (90% CI -1-1)-9 mm/h (90% CI 8-11) was defined. Additionally, a significant difference was found between healthy EIS and EIS in mid-ecdysis (p = 0.006) and EIS with gastric cryptosporidiosis (p = 0.006), indicating ESR as a useful inflammatory indicator in EIS.
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Affiliation(s)
- James E Bogan
- Central Florida Zoo's Orianne Center for Indigo Conservation, Brantley Branch Road, Eustis, FL 30931, USA
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Alibardi L. Activation of cell adhesion molecules and Snail during epithelial to mesenchymal transition prior to formation of the regenerative tail blastema in lizards. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART B, MOLECULAR AND DEVELOPMENTAL EVOLUTION 2023; 340:56-67. [PMID: 35451552 DOI: 10.1002/jez.b.23139] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 02/24/2022] [Accepted: 04/03/2022] [Indexed: 12/16/2022]
Abstract
After few days from tail amputation in lizards the stump is covered with mesenchymal cells accumulated underneath a wound epidermis and forms a regenerative blastema. During migration, some keratinocytes transit from a compact epidermis into relatively free keratinocytes in a process of "epithelial to mesenchymal transition" (EMT). EMT is also induced after damaging the regenerating epidermis by cauterization, whereas keratinocytes detach and migrate as mesenchymal-like cells among the superficial blastema cells and reconstruct a wound epidermis after about a week from the damage. In normal amputation or after cauterization, no malignant transformation is observed during the transition and migration of keratinocytes. Immunolabeling for markers of EMT confirms the histological description and shows a unique pattern of expression for l-CAM (E-cadherin), N-CAM, and SNAIL-1 and -2 (SLUG). These proteins are present in the cytoplasm and nuclei of migrating keratinocytes. It is hypothesized that the nuclear labeling for E-cadherin coupled to cytoplasmic SNAIL-labeling is somehow related to an initially regulated EMT. After the migrating keratinocytes have reached confluence over the stump, they reverse into a "mesenchymal to epithelial transition" (MET) forming the wound epidermis. The basal layers of the apical wound epidermis of the blastema show some nuclear E-cadherin labeling, while the tail regenerates. It is hypothesized that, together with other tumor suppressors proteins, the apical epidermis and mesenchyme are kept under a tight proliferative control, while in proximal regions the prevalent effect of tumor suppressors determine the differentiation of the new tail tissues.
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Affiliation(s)
- Lorenzo Alibardi
- Comparative Histolab Padova and Department of Biology, University of Bologna, Bologna, Italy
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5
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Cheng YH, Li HK, Yao CA, Huang JY, Sung YT, Chung SD, Chien CT. Negative air ions through the action of antioxidation, anti-inflammation, anti-apoptosis and angiogenesis ameliorate lipopolysaccharide induced acute lung injury and promote diabetic wound healing in rat. PLoS One 2022; 17:e0275748. [PMID: 36288391 PMCID: PMC9604953 DOI: 10.1371/journal.pone.0275748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 09/22/2022] [Indexed: 11/19/2022] Open
Abstract
Negative air ions (NAIs) being bioactive and negative charged molecules may confer antioxidant and anti-inflammatory activity. We assessed the effect of NAIs on two inflammatory diseases in animal models including lipopolysaccharide (LPS) induced acute lung injury (ALI) and wound healing in diabetic rats. We used intra-tracheal infusion of LPS to induce ALI and made a full-thickness cutaneous wound in streptozotocin-induced diabetic female Wistar rats. We evaluated NAIs effects on reactive oxygen species amount, leukocyte infiltration, wound healing rate, western blot, and immunohistochemistry in the lungs of ALI and skin sections of wounds. Our data found NAIs exposed saline displayed higher antioxidant activity vs. non-exposed saline. NAIs exposure did not significantly affect arterial blood pressure and respiratory frequency in control and LPS treated groups. LPS increased leukocyte infiltration, caspase 3/Poly-ADP-ribose-polymerase-mediated apoptosis formation and decreased Beclin-1/LC3-II-mediated autophagy in lungs. NAIs exposure conferred pulmonary protection by depressed leukocyte infiltration and caspase 3/Poly-ADP-ribose-polymerase mediated apoptosis and enhanced LC3-II-mediated autophagy in LPS induced ALI. NAIs treatment resulted in a significantly accelerated wound closure rate, decreased erythrocyte accumulation and leukocyte infiltration mediated oxidative stress and inflammation, and upregulated expression of skin collagen, vascular endothelial growth factor receptor-2 (VEGFR-2) and factor transforming growth factor-beta 1 (TGF-β1) vs non-treated group. Based on these results, it is suggested that NAIs conferred a protection through the upregulating LC3-II-dependent autophagy mechanism and downregulating leukocyte infiltration mediated inflammation and caspase 3/Poly-ADP-ribose-polymerase signaling in the LPS-treated ALI and promoted diabetic wound healing through the enhancing skin collagen synthesis, VEGFR-2 and TGF-β1 pathways.
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Affiliation(s)
- Yu-Hsuan Cheng
- Department of Life Science, School of Life Science, College of Science, National Taiwan Normal University, Taipei, Taiwan
| | - Hung-Keng Li
- Department of Life Science, School of Life Science, College of Science, National Taiwan Normal University, Taipei, Taiwan
- Division of Urology, Department of Surgery, Far-Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Chien-An Yao
- Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Jing-Ying Huang
- Department of Life Science, School of Life Science, College of Science, National Taiwan Normal University, Taipei, Taiwan
| | - Yi-Ting Sung
- Department of Life Science, School of Life Science, College of Science, National Taiwan Normal University, Taipei, Taiwan
| | - Shiu-Dong Chung
- Division of Urology, Department of Surgery, Far-Eastern Memorial Hospital, New Taipei City, Taiwan
- Department of Nursing, College of Healthcare & Management, Asia Eastern University of Science and Technology, New Taipei City, Taiwan
- General Education Center, Asia Eastern University of Science and Technology, New Taipei City, Taiwan
- * E-mail: (CTC); (SDC)
| | - Chiang-Ting Chien
- Department of Life Science, School of Life Science, College of Science, National Taiwan Normal University, Taipei, Taiwan
- * E-mail: (CTC); (SDC)
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Pi L, Yang L, Fang BR, Meng XX, Qian L. LncRNA MALAT1 from human adipose-derived stem cell exosomes accelerates wound healing via miR-378a/FGF2 axis. Regen Med 2022; 17:627-641. [PMID: 35822640 DOI: 10.2217/rme-2021-0170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Aim: The effects of MALAT1 from human adipose-derived stem cell (ADSC) exosomes in skin wound healing were investigated. Material & methods: The viability, apoptosis and migration ability of human skin fibroblasts (HSFs) were evaluated by Cell Counting Kit-8 assay, flow cytometry and scratch assay, respectively. A mouse model was established to evaluate the role of exosomal MALAT1 in skin wound healing in vivo. Results: Human ADSC exosomes promoted the proliferation and migration of HSFs and increased MALAT1 expression. MALAT1 silencing in human ADSCs inhibited HSF viability and migration, promoted HSF apoptosis and inhibited angiogenesis by upregulating miR-378a. Overexpression of miR-378a inhibited the migration and proliferation of HSFs by downregulating FGF2 expression. ADSC exosomes promoted skin wound healing by mediating MALAT1 in vivo. Conclusion: Exosomal MALAT1 accelerated skin wound healing by regulating the miR-378a/FGF2 axis, suggesting that MALAT1 might be used as a potential target for cutaneous wound treatment.
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Affiliation(s)
- Li Pi
- Department of Burn & Plastic Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan Province, P.R. China
| | - Li Yang
- Department of Burn & Plastic Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan Province, P.R. China
| | - Bai-Rong Fang
- Department of Burn & Plastic Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan Province, P.R. China
| | - Xian-Xi Meng
- Department of Burn & Plastic Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan Province, P.R. China
| | - Li Qian
- Department of Burn & Plastic Surgery, The Second Xiangya Hospital, Central South University, Changsha, 410011, Hunan Province, P.R. China
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7
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Preparation and Safety Evaluation of Centella asiatica Total Glycosides Nitric Oxide Gel and Its Therapeutic Effect on Diabetic Cutaneous Ulcers. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2022; 2022:1419146. [PMID: 35368764 PMCID: PMC8975668 DOI: 10.1155/2022/1419146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 03/03/2022] [Indexed: 11/17/2022]
Abstract
Diabetic cutaneous ulcers (DCU) are a chronic and refractory complication of diabetes mellitus, which can lead to amputation or even death in extreme cases. Promoting the early healing of DCU and reducing the disability rate and treatment cost are important research topics in treating with integrated traditional Chinese and Western medicine. Centella asiatica total glycosides are extracted from the traditional Chinese medicine Centella asiatica and have angiogenic, anticancer, antioxidant, and wound healing effects. Nitric oxide (NO) is a critical component of wound healing. During the development of DCU, endogenous NO secretion is insufficient. It has been reported that exogenous nitric oxide can promote wound healing, but it is difficult to adhere to the skin because of its short half-life. Therefore, in this study, we used the polymer excipient hydroxyethyl cellulose as the matrix, combined with Centella asiatica total glycosides and NO, and developed a new type of topical gel that can promote wound healing. At the same time, we made a comprehensive research and evaluation on the preparation technology, quality standard, skin toxicity, reproductive toxicity, and pharmacodynamics against diabetic skin ulcers of the gel. According to our research results, the combination of Centella asiatica total glycosides and nitric oxide can accelerate the healing speed of DCU wounds, and 8% Centella asiatica total glycosides nitric oxide gel (CATGNOG) has the best effect in ulcer wound healing. CATGNOG has the advantages of feasible preparation method, controllable quality, good stability at low temperature, and no apparent skin toxicity and reproductive toxicity. It can effectively inhibit the growth of bacteria on the wound surface, relieve the inflammatory reaction of the wound surface, and promote the healing of ulcer wound, which provides a basis for further research of the preparation in the future.
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Fu YN, Li Y, Deng B, Yu Y, Liu F, Wang L, Chen G, Tao L, Wei Y, Wang X. Spatiotemporally dynamic therapy with shape-adaptive drug-gel for the improvement of tissue regeneration with ordered structure. Bioact Mater 2022; 8:165-176. [PMID: 34541394 PMCID: PMC8424390 DOI: 10.1016/j.bioactmat.2021.06.015] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 06/08/2021] [Accepted: 06/11/2021] [Indexed: 12/30/2022] Open
Abstract
A spatiotemporally dynamic therapy (SDT) is proposed as a powerful therapeutic modality that provides spatially dynamic responses of drug-carriers for adapting to the wound microenvironment. Herein, dynamic chitosan-poly (ethylene glycol) (CP) Schiff-base linkages are employed to perform SDT by directly converting a liquid drug Kangfuxin (KFX) into a gel formation. The obtained KFX-CP drug-gel with shape-adaptive property is used to treat a representative oral mucositis (OM) model in a spatiotemporally dynamic manner. The KFX-CP drug-gel creates an instructive microenvironment to regulate signaling biomolecules and endogenous cells behavior, thereby promoting OM healing by the rule of dynamically adjusting shape to fit the irregular OM regions first, and then provides space for tissue regeneration, over KFX potion control and the general hydrogel group of CP hydrogel and KFX-F127. Most interestingly, the regenerated tissue has ordered structure like healthy tissue. Therefore, the SDT provides a new approach for the design of next generation of wound dressing and tissue engineering materials.
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Affiliation(s)
- Ya-nan Fu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yongsan Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Bo Deng
- Department of Oncology of Integrative Chinese and Western Medicine, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Yingjie Yu
- Institute of Translational Medicine, Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Health Science Center, Shenzhen, 518035, China
| | - Fang Liu
- Department of Oncology of Integrative Chinese and Western Medicine, China-Japan Friendship Hospital, Beijing, 100029, China
| | - Lei Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Guang Chen
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Lei Tao
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Yen Wei
- The Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xing Wang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, Beijing Laboratory of Biomedical Materials, Beijing University of Chemical Technology, Beijing, 100029, China
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Çakan D, Uşaklıoğlu S. The effect of locally administered phenytoin on wound healing in an experimental nasal septal perforation animal model. Eur Arch Otorhinolaryngol 2022; 279:3511-3517. [DOI: 10.1007/s00405-022-07276-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 01/17/2022] [Indexed: 01/15/2023]
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10
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Laidding SR, Josh F, Battung S, Bukhari A, Warsinggih, Patellongi IJ, Massi MN, Islam AA, Dososaputro I, Faruk M. Combination of platelet rich plasma and stromal vascular fraction on the level of vascular endothelial growth factor in rat subjects experiencing deep dermal burn injury. Ann Med Surg (Lond) 2021; 64:102254. [PMID: 33898027 PMCID: PMC8053889 DOI: 10.1016/j.amsu.2021.102254] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 03/21/2021] [Accepted: 03/22/2021] [Indexed: 02/07/2023] Open
Abstract
Background The healing process of burns includes coagulation, inflammation, and remodeling. Vascular endothelial growth factor (VEGF) is involved throughout this healing process. Stem cells from the platelet-rich plasma (PRP) with stromal vascular fraction (SVF) can increase concentrations of growth factors, including VEGF. This is expected to accelerate burn healing. The aim of this study was to determine the effect of a combination of PRP and SVF on VEGF levels in a rats model of deep dermal burn wound healing. Materials and methods This is an experimental research study in rats using a post-test control group design with 4 groups: A) control, B) Vaseline, C) topical PRP and SVF, and D) PRP and SVF injection. Burn wounds were induced according to the modified Guo method. Results In a rats model of deep dermal wound healing, topical Vaseline significantly increased serum VEGF compared to control. Topical application and injection of stem cells also significantly increased serum VEGF compared to control and Vaseline. The VEGF concentration was significantly higher following injection of PRP and SVF, suggesting that the injection route is more effective at increasing VEGF levels compared to the topical application of stem cells. Conclusion The combination of PRP and SVF, either by injection or topical application, can increase VEGF levels during the healing process from deep dermal burns. Stem cells can increase concentrations of growth factors. Topical application and injection of stem cells significantly increased serum VEGF compared to control. The VEGF concentration was significantly higher following injection of PRP and SVFs. The injection route of stem cells is more effective at increasing VEGF levels compared to the topical application.
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Affiliation(s)
- Sachraswaty Rachman Laidding
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Fonny Josh
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Sartian Battung
- Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Agussalim Bukhari
- Department of Clinical Nutrition, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Warsinggih
- Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Ilham Jaya Patellongi
- Department of Biostatistics, Faculty of Public Health, Hasanuddin University, Makassar, Indonesia
| | - Muh Nassrum Massi
- Departement of Microbiology, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Andi Asadul Islam
- Department of Neurosurgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
| | - Iswinarno Dososaputro
- Department of Plastic and Reconstructive Surgery, Airlangga University, Dr. Soetomo Hospital, Surabaya, Indonesia
| | - Muhammad Faruk
- Department of Surgery, Faculty of Medicine, Hasanuddin University, Makassar, Indonesia
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Bassitta M, Brown RP, Pérez-Cembranos A, Pérez-Mellado V, Castro JA, Picornell A, Ramon C. Genomic signatures of drift and selection driven by predation and human pressure in an insular lizard. Sci Rep 2021; 11:6136. [PMID: 33731784 PMCID: PMC7971075 DOI: 10.1038/s41598-021-85591-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Accepted: 03/02/2021] [Indexed: 01/27/2023] Open
Abstract
Genomic divergence was studied in 10 small insular populations of the endangered Balearic Islands lizard (Podarcis lilfordi) using double digest restriction-site associated DNA sequencing. The objectives were to establish levels of divergence among populations, investigate the impact of population size on genetic variability and to evaluate the role of different environmental factors on local adaptation. Analyses of 72,846 SNPs supported a highly differentiated genetic structure, being the populations with the lowest population size (Porros, Foradada and Esclatasang islets) the most divergent, indicative of greater genetic drift. Outlier tests identified ~ 2% of loci as candidates for selection. Genomic divergence-Enviroment Association analyses were performed using redundancy analyses based on SNPs putatively under selection, detecting predation and human pressure as the environmental variables with the greatest explanatory power. Geographical distributions of populations and environmental factors appear to be fundamental drivers of divergence. These results support the combined role of genetic drift and divergent selection in shaping the genetic structure of these endemic island lizard populations.
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Affiliation(s)
- Marta Bassitta
- Laboratori de Genètica, Departament de Biologia, Universitat de les Illes Balears, Crta. de Valldemossa, km 7.5, 07122, Palma de Mallorca, Spain.
| | - Richard P Brown
- School of Biological and Environmental Sciences, Liverpool John Moores University, Liverpool, UK
| | - Ana Pérez-Cembranos
- Departamento de Biología Animal, Edificio de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, Salamanca, Spain
| | - Valentín Pérez-Mellado
- Departamento de Biología Animal, Edificio de Farmacia, Universidad de Salamanca, Campus Miguel de Unamuno, Salamanca, Spain
| | - José A Castro
- Laboratori de Genètica, Departament de Biologia, Universitat de les Illes Balears, Crta. de Valldemossa, km 7.5, 07122, Palma de Mallorca, Spain
| | - Antònia Picornell
- Laboratori de Genètica, Departament de Biologia, Universitat de les Illes Balears, Crta. de Valldemossa, km 7.5, 07122, Palma de Mallorca, Spain
| | - Cori Ramon
- Laboratori de Genètica, Departament de Biologia, Universitat de les Illes Balears, Crta. de Valldemossa, km 7.5, 07122, Palma de Mallorca, Spain
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Ahmed R, Afreen A, Tariq M, Zahid AA, Masoud MS, Ahmed M, Ali I, Akram Z, Hasan A. Bone marrow mesenchymal stem cells preconditioned with nitric-oxide-releasing chitosan/PVA hydrogel accelerate diabetic wound healing in rabbits. Biomed Mater 2021; 16. [DOI: 10.1088/1748-605x/abc28b] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Accepted: 10/19/2020] [Indexed: 12/18/2022]
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Stoica AE, Grumezescu AM, Hermenean AO, Andronescu E, Vasile BS. Scar-Free Healing: Current Concepts and Future Perspectives. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:E2179. [PMID: 33142891 PMCID: PMC7693882 DOI: 10.3390/nano10112179] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/15/2020] [Accepted: 10/27/2020] [Indexed: 02/07/2023]
Abstract
Every year, millions of people develop scars due to skin injuries after trauma, surgery, or skin burns. From the beginning of wound healing development, scar hyperplasia, and prolonged healing time in wound healing have been severe problems. Based on the difference between adult and fetal wound healing processes, many promising therapies have been developed to decrease scar formation in skin wounds. Currently, there is no good or reliable therapy to cure or prevent scar formation. This work briefly reviews the engineering methods of scarless wound healing, focusing on regenerative biomaterials and different cytokines, growth factors, and extracellular components in regenerative wound healing to minimize skin damage cell types, and scar formation.
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Affiliation(s)
- Alexandra Elena Stoica
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.E.S.); (A.M.G.); (E.A.)
- National Research Center for Micro and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
| | - Alexandru Mihai Grumezescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.E.S.); (A.M.G.); (E.A.)
| | - Anca Oana Hermenean
- Institute of Life Sciences, Vasile Goldiş Western University of Arad, 310025 Arad, Romania;
| | - Ecaterina Andronescu
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.E.S.); (A.M.G.); (E.A.)
| | - Bogdan Stefan Vasile
- Department of Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1–7 Gheorghe Polizu Street, 011061 Bucharest, Romania; (A.E.S.); (A.M.G.); (E.A.)
- National Research Center for Micro and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 060042 Bucharest, Romania
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Rouabhia M, Park HJ, Abedin‐Do A, Douville Y, Méthot M, Zhang Z. Electrical stimulation promotes the proliferation of human keratinocytes, increases the production of keratin 5 and 14, and increases the phosphorylation of ERK1/2 and p38 MAP kinases. J Tissue Eng Regen Med 2020; 14:909-919. [DOI: 10.1002/term.3040] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2019] [Revised: 03/14/2020] [Accepted: 03/23/2020] [Indexed: 12/26/2022]
Affiliation(s)
- Mahmoud Rouabhia
- Groupe de Recherche en Écologie Buccale, Faculté de Médecine DentaireUniversité Laval Quebec Canada
| | - Hyun Jin Park
- Groupe de Recherche en Écologie Buccale, Faculté de Médecine DentaireUniversité Laval Quebec Canada
- Département de Chirurgie, Faculté de Médecine, Axe Médecine Régénératrice, Centre de Recherche du CHU de QuébecUniversité Laval Quebec Canada
| | - Atieh Abedin‐Do
- Groupe de Recherche en Écologie Buccale, Faculté de Médecine DentaireUniversité Laval Quebec Canada
- Département de Chirurgie, Faculté de Médecine, Axe Médecine Régénératrice, Centre de Recherche du CHU de QuébecUniversité Laval Quebec Canada
| | - Yvan Douville
- Département de Chirurgie, Faculté de Médecine, Axe Médecine Régénératrice, Centre de Recherche du CHU de QuébecUniversité Laval Quebec Canada
| | - Mireille Méthot
- Département de Chirurgie, Faculté de Médecine, Axe Médecine Régénératrice, Centre de Recherche du CHU de QuébecUniversité Laval Quebec Canada
| | - Ze Zhang
- Département de Chirurgie, Faculté de Médecine, Axe Médecine Régénératrice, Centre de Recherche du CHU de QuébecUniversité Laval Quebec Canada
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Anti-Aging Effects of GDF11 on Skin. Int J Mol Sci 2020; 21:ijms21072598. [PMID: 32283613 PMCID: PMC7177281 DOI: 10.3390/ijms21072598] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 04/02/2020] [Accepted: 04/07/2020] [Indexed: 12/24/2022] Open
Abstract
Human skin is composed of three layers: the epidermis, the dermis, and the hypodermis. The epidermis has four major cell layers made up of keratinocytes in varying stages of progressive differentiation. Skin aging is a multi-factorial process that affects every phase of its biology and function. The expression profiles of inflammation-related genes analyzed in resident immune cells demonstrated that these cells have a strong ability to regenerate adult skin stem cells and to produce endogenous substances such as growth differentiation factor 11 (GDF11). GDF11 appears to be the key to progenitor proliferation and/or differentiation. The preservation of youthful phenotypes has been tied to the presence of GDF11 in different human tissues, and, in the skin, this factor inhibits inflammatory responses. The protective role of GDF11 depends on a multi-factorial process implicating various types of skin cells such as keratinocytes, fibroblasts and inflammatory cells. GDF11 should be further studied for the purpose of developing novel therapies for the treatment of skin diseases.
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Nie X, Zhang H, Shi X, Zhao J, Chen Y, Wu F, Yang J, Li X. Asiaticoside nitric oxide gel accelerates diabetic cutaneous ulcers healing by activating Wnt/β-catenin signaling pathway. Int Immunopharmacol 2019; 79:106109. [PMID: 31865242 DOI: 10.1016/j.intimp.2019.106109] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 11/25/2019] [Accepted: 11/29/2019] [Indexed: 12/23/2022]
Abstract
Diabetic ulcers, gangrene, local infections and other traumatic symptoms of wound healing are all directly related. Promoting the early healing of diabetic cutaneous ulcers (DCU) and reducing the disability and treatment costs is an important research project integrating traditional Chinese and Western medicine. Nitric oxide (NO) is a key component of wound healing, and endogenous NO secretion is insufficient during the development of DCU. It has been reported that exogenous NO can promote wound healing, but exogenous NO has a short half-life and is difficult to adhere to the skin. Asiaticoside (AC) is extracted from the traditional Chinese medicine Centella asiatica, and has angiogenic, anticancer, antioxidant, anti-inflammatory, and wound-healing effects. Therefore, our study is based on the hypothesis that the combination of AC and NO to treat DCU is possible. In this study we considered gels of AC and NO, and evaluated the effects of the gel on DCU healing. Based on our study, it was found that the combined effect of asiaticoside and NO could accelerate the healing rate of DCU wounds. The asiaticoside NO gel can inhibit the growth of bacteria in the wound surface, alleviate the inflammatory reaction of wound, and increase the expression of VEGF, iNOS, eNOS and CD34. Our research shows that asiaticoside NO gel may promote DCU wound healing by regulating Wnt/β-Catenin signaling pathway. It will provide new targets and strategies for the diagnosis and treatment of DCU.
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Affiliation(s)
- Xuqiang Nie
- Institute of Materia Medica, College of Pharmacy, Army Medical University (Third Military Medical University), Chongqing 400038, China; College of Pharmacy, Zunyi Medical University, Zunyi 563000, China; Key Laboratory of Basic Pharmacology of Ministry of Education and Joint International Research Laboratory of Ethnomedicine of Ministry of Education, Zunyi Medical University, Zunyi 563000, China.
| | - Han Zhang
- College of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Xiujun Shi
- College of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Jiufeng Zhao
- College of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Yu Chen
- College of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Faming Wu
- College of Pharmacy, Zunyi Medical University, Zunyi 563000, China
| | - Jianwen Yang
- Pharmacy Department, Affiliated Hospital of Zunyi Medical University, Zunyi 563003, China
| | - Xiaohui Li
- Institute of Materia Medica, College of Pharmacy, Army Medical University (Third Military Medical University), Chongqing 400038, China.
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Liu X, Chen H, Su G, Song P, Jiang M, Gong J. An animal research and a chemical composition analysis of a Chinese prescription for pulmonary fibrosis: Yangfei Huoxue Decoction. JOURNAL OF ETHNOPHARMACOLOGY 2019; 245:112126. [PMID: 31421181 DOI: 10.1016/j.jep.2019.112126] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 07/27/2019] [Accepted: 07/29/2019] [Indexed: 06/10/2023]
Abstract
ETHNOPHARMACOLOGICAL EVIDENCE Pulmonary fibrosis (PF) is a progressive disease characterized by the aberrant accumulation of fibrotic tissue in the lungs parenchyma, associated with significant morbidity. Few effective drugs have been developed to reverse PF or even halt the disease progression. Yangfei Huoxue Decoction (YHD), a Traditional Chinese Medicine, which consisted of Astragalus membranacus(AM), Glehnia littoralis(GL), Schisandra chinensis(SC), Salvia miltiorrhiza Bunge(SB), Reynoutria japonica(RJ), Ligusticum chuanxiong(LX), and Euonymus alatus(EA) , has been used in China for the treatment of PF for many years with remarkable efficacy. According to the clinic observation of the results, we conducted experiments on animals, the process of BLM-induced pulmonary fibrosis in rats was interfered by YHD, through the detection of pulmonary fibrosis rats' blood cells and plasma, we selected the related molecules that may exert proinflammatory(IL-1β), promote angiogenesis(vascular endothelial growth factor ,VEGF). For further explicitly research, we should know what the chemical composition the prescription (YHD) contains and what the related bioactive components have. In accordance with in-house library and evaluating the characteristic MS fragmentation patterns, the schisandra chinensis methanol, lignin, flavonol, polyphenol, tanshinone, salvianolic acid, anthraquinone, ligustrazine, etc. had a retardant and inhibitory effect on the development and formation of pulmonary fibrosis. These results will aid in the quality control of YHD, as well as provide fundamental data for further pharmaco-mechanisms studies. AIM OF THE STUDY To discover the pulmonary immune related bioactive components of YHD. MATERIALS AND METHODS Animal Experiment:144 SD rats, based on the principles of randomization divided into eight groups, Control group, bleomycin(BLM) group, BLM + dexamethasone(BLM + DXM) group, BLM + Yangfei(YF) group, BLM + Huoxue(HX) group, BLM + high-doseYHD(YHD-H) group, BLM + medium-doseYHD(YHD-M) group, and BLM + low-doseYHD(YHD-L) group, each group of 18 rats. After endotracheal administration of Bleomycin by tracheotomy, rats were sacrificed on day 7, day 14 and day 28, blood and plasma were taken at the same time. Respectively, the VEGF, an immune molecule associated with angiogenesis, and IL-1β in plasma were detected by ELISA at three time periods. Component testing: 100 g YHD were constituted of SB 15 g, LX 12 g, EA 10 g, RJ 15 g, AM 20 g, GL 20 g and SC 8 g. All herbs were obtained from Beijing Tong Ren Tang (Group) Co ltd. The voucher specimens were identified by Prof. Jiening Gong (Nanjing University of Chinese Medicine). YHD were extracted by sonication with 1 L ethanol/water (70:30, v/v) for two cycle (1 h per cycle) at room temperature. The combined extracts were filtered, condensed, and reconstituted with 50 mL methanol before analysis. Standard Cianidanol, Ferulic Acid, Polydatin, Calycosin 7-O-glucoside, Tanshinone IIA, Salvianolic acid B, Schizandrol A, and Isoimperatorin were prepared in methanol. After centrifuging at 20,000 rpm for 10 min, 4 μL supernatant was injected into the Ultra-Performance Liquid Chromatography coupled with Quadrupole Time-of-Flight tandem mass spectrometry (UPLC/QTOF-MSE) combined with UNIFI informatics platform for analysis. CONCLUSION The experiment results revealed that the vascularized VEGF, inflammatory factor expression of IL-1β was restrained by YHD. The UPLC/QTOF-MSE method, an automatic database screening platform and the characteristic MS fragmentation patterns have efficiently facilitated the post data process, so we test for the identification of major components in YHD by this technology, more than seven or more active ingredients, the results showed that YHD contained a total of 55 components, including 11 lignans, 12 flavonoids, 7 tanshinones, 9 organic acid, 5 polyphenols, 4 anthraquinones, 5 senkyunolides and 2 others. Based on this, we can ensure the discovery and analysis of biologically active compounds in YHD, as well as provide a reference for the quality evaluation. We expect the method presented here could be applied to other multi-component TCM formula. In addition, we can conduct more in-depth research, such as mechanism research, molecular detection, gene target and so on.
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Affiliation(s)
- Xiao Liu
- Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610072, P.R.China.
| | - Hui Chen
- Nanjing University of Chinese Medicine, Nanjing 210023, P.R. China.
| | - Guangbao Su
- Nanjing University of Chinese Medicine, Nanjing 210023, P.R. China.
| | - Ping Song
- Nanjing University of Chinese Medicine, Nanjing 210023, P.R. China.
| | - Miao Jiang
- Nanjing University of Chinese Medicine, Nanjing 210023, P.R. China.
| | - Jiening Gong
- Nanjing University of Chinese Medicine, Nanjing 210023, P.R. China.
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Xu M, Wang T, Li W, Wang Y, Xu Y, Mao Z, Wu R, Liu M, Liu Y. PGE2 facilitates tail regeneration via activation of Wnt signaling in Gekko japonicus. J Mol Histol 2019; 50:551-562. [PMID: 31535259 DOI: 10.1007/s10735-019-09847-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Accepted: 09/10/2019] [Indexed: 12/26/2022]
Abstract
Tail regeneration is a distinguishing feature of lizards; however, the mechanisms underlying tail regeneration remain elusive. Prostaglandin E2 (PGE2) is an arachidonic acid metabolite that has been extensively investigated in the inflammatory response under both physiological and pathological conditions. PGE2 also act as a regulator of hematopoietic stem cell homeostasis by interacting with Wnt signaling molecules. The present study aims to identify the effects of PGE2 on tail regeneration and the molecular mechanisms behind it. We initially found that PGE2 levels increased during the early stages of tail regeneration, accompanied by the up-regulated expression of cyclooxygenase 1 and cyclooxygenase 2. Next, we demonstrated that reduced PGE2 production leads to the retardation of tail regeneration. Subsequent experiments demonstrated that this effect is likely mediated by Wnt signaling, which proposing that the activation of the Wnt pathway is essential for the initiation of regeneration. The results showed that inhibition of PGE2 production could suppress Wnt activation and inhibit the proliferation of both epithelial and blastema cells. Furthermore, our findings indicated that forced activation of Wnt signaling could rescue the inhibitory effect of Cox antagonist on regeneration, suggesting a positive role of PGE2 on tail regeneration via a non-inflammatory mechanism.
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Affiliation(s)
- Man Xu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Tiantian Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Wenjuan Li
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Yin Wang
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Yanran Xu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Zuming Mao
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Ronghua Wu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Mei Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Yan Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, 226001, Jiangsu Province, China.
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Farhadihosseinabadi B, Salimi M, Kazemi B, Samadikuchaksaraei A, Ghanbarian H, Mozafari M, Niknejad H. Inducing type 2 immune response, induction of angiogenesis, and anti-bacterial and anti-inflammatory properties make Lacto-n-Neotetraose (LNnT) a therapeutic choice to accelerate the wound healing process. Med Hypotheses 2019; 134:109389. [PMID: 31627122 DOI: 10.1016/j.mehy.2019.109389] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 08/21/2019] [Accepted: 09/02/2019] [Indexed: 01/13/2023]
Abstract
The healing process of non-healing and full-thickness wounds is currently facing some serious challenges. In such ulcers, losing a large part of skin causes a chronic infection due to the entrance of various pathogens in the wound bed. Moreover, poor vascularization, uncontrolled inflammation, and delayed re-epithelialization increase the healing time in patients suffering from such wounds. In this light, tissue engineering provides a wide range of strategies using a variety of biomaterials, biofactors and stem cells to decrease the healing time and restore the function of the damaged site. A suitable wound healing agent should possess some critical parameters such as inducing re-epithelialization, anti-inflammatory and anti-bacterial properties, and angiogenic capability. The Lacto-n-Neotetraose (LNnT) with chemical formula C26H45NO21 is an oligosaccharide present in human milk and soluble antigens extracted from Schistosoma mansoni eggs. It is reported that LNnT induces type 2 immune response (Th2 immunity). Th2 immunity promotes re-epithelialization, angiogenesis and wound contraction by recruiting the cells which produce Th2-related cytokines. Moreover, LNnT shows some special characteristics such as angiogenic capability, anti-inflammatory, and anti-bacterial effects which can address the mentioned challenges in the treatment of non-healing and full-thickness wounds. Here, we hypothesize that utilizing LNnT is an appropriate biofactor which would improve the healing process in full-thickness and non-healing wounds.
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Affiliation(s)
- Behrouz Farhadihosseinabadi
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Salimi
- Department of Biology and Anatomical Sciences, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahram Kazemi
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Ali Samadikuchaksaraei
- Cellular and Molecular Research Centre, Iran University of Medical Sciences, Tehran, Iran; Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Hossein Ghanbarian
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Mozafari
- Bioengineering Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), PO Box 14155-4777, Tehran, Iran
| | - Hassan Niknejad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Therapeutic potential of endogenous stem cells and cellular factors for scar-free skin regeneration. Drug Discov Today 2019; 24:69-84. [DOI: 10.1016/j.drudis.2018.10.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 08/28/2018] [Accepted: 10/25/2018] [Indexed: 12/20/2022]
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