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The effects of artocarpin on wound healing: in vitro and in vivo studies. Sci Rep 2017; 7:15599. [PMID: 29142215 PMCID: PMC5688173 DOI: 10.1038/s41598-017-15876-7] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2017] [Accepted: 10/31/2017] [Indexed: 12/15/2022] Open
Abstract
The skin protects the body against harmful substances and microorganisms. When the skin is damaged, wound healing must be finely regulated to restore the normal function of skin tissue. Artocarpin (ARTO), a prenylated flavonoid purified from the plant Artocarpus communis, has been reported to have anti-inflammatory and anti-cancer properties. The aim of the present study was to evaluate the wound healing potential and therapeutic mechanism of ARTO. Immunohistochemical staining of neutrophils and macrophages and mouse cytokine array analysis demonstrated that ARTO accelerates inflammatory progression and subsequently decreases persistent inflammation. ARTO increases collagen production and increases human fibroblast proliferation and migration by activating the P38 and JNK pathways. Moreover, ARTO increases the proliferation and migration of human keratinocytes through the ERK and P38 pathways and augments human endothelial cell proliferation and tube formation through the Akt and P38 pathways. Together, our data suggested that ARTO enhances skin wound healing, possibly by accelerating the inflammatory phase and by increasing myofibroblast differentiation, proliferation and migration of fibroblasts and keratinocytes, collagen synthesis and maturation, re-epithelialization, and angiogenesis. These findings indicate that ARTO has potential as a potent therapeutic agent for the treatment of skin wounds.
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102
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Kunkemoeller B, Kyriakides TR. Redox Signaling in Diabetic Wound Healing Regulates Extracellular Matrix Deposition. Antioxid Redox Signal 2017; 27:823-838. [PMID: 28699352 PMCID: PMC5647483 DOI: 10.1089/ars.2017.7263] [Citation(s) in RCA: 124] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
SIGNIFICANCE Impaired wound healing is a major complication of diabetes, and can lead to development of chronic foot ulcers in a significant number of patients. Despite the danger posed by poor healing, very few specific therapies exist, leaving patients at risk of hospitalization, amputation, and further decline in overall health. Recent Advances: Redox signaling is a key regulator of wound healing, especially through its influence on the extracellular matrix (ECM). Normal redox signaling is disrupted in diabetes leading to several pathological mechanisms that alter the balance between reactive oxygen species (ROS) generation and scavenging. Importantly, pathological oxidative stress can alter ECM structure and function. CRITICAL ISSUES There is limited understanding of the specific role of altered redox signaling in the diabetic wound, although there is evidence that ROS are involved in the underlying pathology. FUTURE DIRECTIONS Preclinical studies of antioxidant-based therapies for diabetic wound healing have yielded promising results. Redox-based therapeutics constitute a novel approach for the treatment of wounds in diabetes patients that deserve further investigation. Antioxid. Redox Signal. 27, 823-838.
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Affiliation(s)
- Britta Kunkemoeller
- 1 Department of Pathology, Yale University School of Medicine , New Haven, Connecticut
- 2 Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine , New Haven, Connecticut
| | - Themis R Kyriakides
- 1 Department of Pathology, Yale University School of Medicine , New Haven, Connecticut
- 2 Interdepartmental Program in Vascular Biology and Therapeutics, Yale University School of Medicine , New Haven, Connecticut
- 3 Department of Biomedical Engineering, Yale University , New Haven, Connecticut
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Jespersen A, Jensen HE, Agger JF, Heegaard PMH, Damborg P, Aalbæk B, Hammer AS. The effect of color type on early wound healing in farmed mink (Neovison vison). BMC Vet Res 2017; 13:135. [PMID: 28532438 PMCID: PMC5440898 DOI: 10.1186/s12917-017-1052-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 05/08/2017] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Individual differences of mink, including color type, are speculated to affect the course of wound healing, thereby impacting wound assessment and management on the farms, as well as the assessment of wounds in forensic cases. In this study, we examined the effect of color type on early wound healing in farmed mink. Full thickness excisional wounds (2 × 2 cm) were made on the back in 18 mink of the color types Brown, Silverblue and Blue Iris. Gross and microscopic pathology of the wounds was evaluated 2 days post-wounding together with degree of wound size reduction, presence of bacteria and blood analyses. RESULTS Pathological examination on day 2 showed the greatest mean wound size reduction in Brown mink (11.0%) followed by Blue Iris (7.9%) and Silverblue (1.6%). Bacteria were cultured from all wounds, and predominantly Staphylococcus species were recovered in mixed or pure culture. Histopathology from day 2 wounds showed a scab overlying necrotic wound edges, which were separated from underlying vital tissue by a demarcation zone rich in polymorphonuclear leukocytes. Fibroblasts and plump endothelial cells were more numerous in the deeper tissues. Complete blood count parameters were within normal ranges in most cases, however, the mink showed mildly to markedly decreased hematocrit and six mink of the color types Silverblue and Blue Iris showed moderately elevated numbers of circulating segmented neutrophils on day 2. There was a marked increase in concentration of serum amyloid A from day 0 to day 2 in all color types. CONCLUSIONS We have described differences in early wound healing between mink of the color types Brown, Silverblue and Blue Iris by use of an experimental wound model in farmed mink. The most pronounced difference pertained to the degree of wound size reduction which was greatest in Brown mink, followed by Blue Iris and Silverblue, respectively.
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Affiliation(s)
- A. Jespersen
- Kopenhagen Fur, Langagervej 60, DK-2600 Glostrup, Denmark
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Ridebanevej 3, DK-1870 Frederiksberg C, Denmark
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Ridebanevej 3, DK-1870 Frederiksberg C, Denmark
| | - H. E. Jensen
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Ridebanevej 3, DK-1870 Frederiksberg C, Denmark
| | - J. F. Agger
- Department of Large Animal Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Grønnegårdsvej 8, DK-1870 Frederiksberg C, Denmark
| | - P. M. H. Heegaard
- National Veterinary Institute, Technical University of Denmark, Bülowsvej 27, DK-1870 Frederiksberg C, Denmark
| | - P. Damborg
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Ridebanevej 3, DK-1870 Frederiksberg C, Denmark
| | - B. Aalbæk
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Ridebanevej 3, DK-1870 Frederiksberg C, Denmark
| | - A. S. Hammer
- Department of Veterinary Disease Biology, Faculty of Health and Medical Sciences, University of Copenhagen, Ridebanevej 3, DK-1870 Frederiksberg C, Denmark
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104
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Han Z, Chen Y, Zhang Y, Wei A, Zhou J, Li Q, Guo L. MiR‐21/PTEN Axis Promotes Skin Wound Healing by Dendritic Cells Enhancement. J Cell Biochem 2017; 118:3511-3519. [PMID: 28374893 DOI: 10.1002/jcb.26026] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 04/03/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Zhaofeng Han
- Department of Burn and Reconstruction The First Affiliated Hospital of Zhengzhou University Zhengzhou 450002 China
| | - Ya Chen
- Department of Burn and Reconstruction The First Affiliated Hospital of Zhengzhou University Zhengzhou 450002 China
| | - Yile Zhang
- Reproductive Medical Center The First Affiliated Hospital of Zhengzhou University Zhengzhou 450002 China
| | - Aizhou Wei
- Department of Burn and Reconstruction The First Affiliated Hospital of Zhengzhou University Zhengzhou 450002 China
| | - Jian Zhou
- Department of Burn and Reconstruction The First Affiliated Hospital of Zhengzhou University Zhengzhou 450002 China
| | - Qian Li
- Department of Burn and Reconstruction The First Affiliated Hospital of Zhengzhou University Zhengzhou 450002 China
| | - Lili Guo
- Department of Plastic Surgery The First Affiliated Hospital of Zhengzhou University Zhengzhou 450002 China
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105
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Conte R, Marturano V, Peluso G, Calarco A, Cerruti P. Recent Advances in Nanoparticle-Mediated Delivery of Anti-Inflammatory Phytocompounds. Int J Mol Sci 2017; 18:E709. [PMID: 28350317 PMCID: PMC5412295 DOI: 10.3390/ijms18040709] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 03/18/2017] [Accepted: 03/23/2017] [Indexed: 12/11/2022] Open
Abstract
Phytocompounds have been used in medicine for decades owing to their potential in anti-inflammatory applications. However, major difficulties in achieving sustained delivery of phyto-based drugs are related to their low solubility and cell penetration, and high instability. To overcome these disadvantages, nanosized delivery technologies are currently in use for sustained and enhanced delivery of phyto-derived bioactive compounds in the pharmaceutical sector. This review focuses on the recent advances in nanocarrier-mediated drug delivery of bioactive molecules of plant origin in the field of anti-inflammatory research. In particular, special attention is paid to the relationship between structure and properties of the nanocarrier and phytodrug release behavior.
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Affiliation(s)
- Raffaele Conte
- Institute of Agro-Environmental and Forest Biology (IBAF-CNR), Via Pietro Castellino 111, 80131 Napoli, Italy.
| | - Valentina Marturano
- Institute for Polymers, Composites, and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy.
- Department of Chemical Sciences, University of Naples "Federico II", Via Cynthia 4, 80125 Napoli, Italy.
| | - Gianfranco Peluso
- Institute of Agro-Environmental and Forest Biology (IBAF-CNR), Via Pietro Castellino 111, 80131 Napoli, Italy.
| | - Anna Calarco
- Institute of Agro-Environmental and Forest Biology (IBAF-CNR), Via Pietro Castellino 111, 80131 Napoli, Italy.
| | - Pierfrancesco Cerruti
- Institute for Polymers, Composites, and Biomaterials (IPCB-CNR), Via Campi Flegrei 34, 80078 Pozzuoli (NA), Italy.
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106
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Photobiomodulation of wound healing via visible and infrared laser irradiation. Lasers Med Sci 2017; 32:903-910. [PMID: 28321647 DOI: 10.1007/s10103-017-2191-0] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 03/08/2017] [Indexed: 10/19/2022]
Abstract
Fibroblast cells are known to be one of the key elements in wound healing process, which has been under the scope of research for decades. However, the exact mechanism of photobiomodulation on wound healing is not fully understood yet. Photobiomodulation of 635 and 809 nm laser irradiation at two different energy densities were investigated with two independent experiments; first, in vitro cell proliferation and then in vivo wound healing. L929 mouse fibroblast cell suspensions were exposed with 635 and 809 nm laser irradiations of 1 and 3 J/cm2 energy densities at 50 mW output power separately for the investigation of photobiomodulation in vitro. Viabilities of cells were examined by means of MTT assays performed at the 24th, 48th, and 72nd hours following the laser irradiations. Following the in vitro experiments, 1 cm long cutaneous incisional skin wounds on Wistar albino rats (n = 24) were exposed with the same laser sources and doses in vivo. Wound samples were examined on 3rd, 5th, and 7th days of healing by means of mechanical tensile strength tests and histological examinations. MTT assay results showed that 635 nm laser irradiation of both energy densities after 24 h were found to be proliferative. One joule per square centimeter laser irradiation results also had positive effect on cell proliferation after 72 h. However, 809 nm laser irradiation at both energy densities had neither positive nor negative affects on cell viability. In vivo experiment results showed that, 635 nm laser irradiation of both energy densities stimulated wound healing in terms of tensile strength, whereas 809 nm laser stimulation did not cause any stimulative effect. The results of mechanical tests were compatible with the histological evaluations. In this study, it is observed that 635 nm laser irradiations of low energy densities had stimulative effects in terms of cell proliferation in vitro and mechanical strength of incisions in vivo. However, 809 nm laser irradiations at the same doses did not have any positive effect.
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107
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Song SH, Seong KY, Kim JE, Go J, Koh EK, Sung JE, Son HJ, Jung YJ, Kim HS, Hong JT, Hwang DY. Effects of different cellulose membranes regenerated from Styela clava tunics on wound healing. Int J Mol Med 2017; 39:1173-1187. [PMID: 28339010 PMCID: PMC5403385 DOI: 10.3892/ijmm.2017.2923] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Accepted: 02/23/2017] [Indexed: 02/02/2023] Open
Abstract
The aim of this study was to investigate the therapeutic effects of three different cellulose membranes (CMs) manufactured from Styela clava tunics (SCTs) on the healing of cutaneous wounds. We examined the physical properties and therapeutic effects of three CMs regenerated from SCTs (referred to as SCT- CMs), including normal CM (SCT-CM), freeze-dried SCT-CM (FSCT-CM) and sodium alginate-supplemented SCT-CM (ASCT-CM) on skin regeneration and angiogenesis using Sprague-Dawley (SD) rats. FSCT-CM exhibited an outstanding interlayered structure, a high tensile strength (1.64 MPa), low elongation (28.59%) and a low water vapor transmission rate (WVTR) compared with the other SCT-CMs, although the fluid uptake rate was maintained at a medium level. In the SD rats with surgically wounded skin, the wound area and score of wound edge were lower in the FSCT-CM-treated group than in the gauze (GZ)-treated group on days 3–6 and 12–14. In addition, a significant attenuation in the histopathological changes was observed in the FSCT-CM-treated group. Furthermore, the expression level of collagen-1 and the signaling pathway of transforming growth factor (TGF)-β1 were significantly stimulated by the topical application of FSCT-CM. However, no signs of toxicity were detected in the livers or kidneys of the three SCT-CM-treated groups. Overall, our data indicate that the FSCT-CM may accelerate the process of wound healing in the surgically wounded skin of SD rats through the regulation of angiogenesis and connective tissue formation without inducing any specific toxicity.
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Affiliation(s)
- Sung Hwa Song
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang-si, Gyeongsangnam‑do 627‑706, Republic of Korea
| | - Keum Yong Seong
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang-si, Gyeongsangnam‑do 627‑706, Republic of Korea
| | - Ji Eun Kim
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang-si, Gyeongsangnam‑do 627‑706, Republic of Korea
| | - Jun Go
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang-si, Gyeongsangnam‑do 627‑706, Republic of Korea
| | - Eun Kyoung Koh
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang-si, Gyeongsangnam‑do 627‑706, Republic of Korea
| | - Ji Eun Sung
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang-si, Gyeongsangnam‑do 627‑706, Republic of Korea
| | - Hong Joo Son
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang-si, Gyeongsangnam‑do 627‑706, Republic of Korea
| | - Young Jin Jung
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang-si, Gyeongsangnam‑do 627‑706, Republic of Korea
| | - Hye Sung Kim
- College of Nanoscience and Nanotechnology, Pusan National University, Miryang-si, Gyeongsangnam‑do 627‑706, Republic of Korea
| | - Jin Tae Hong
- College of Pharmacy, Chungbuk National University, Cheongju, Chungbuk 361-763, Republic of Korea
| | - Dae Youn Hwang
- Department of Biomaterials Science, College of Natural Resources and Life Science/Life and Industry Convergence Research Institute, Pusan National University, Miryang-si, Gyeongsangnam‑do 627‑706, Republic of Korea
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108
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Han KY, Tran JA, Chang JH, Azar DT, Zieske JD. Potential role of corneal epithelial cell-derived exosomes in corneal wound healing and neovascularization. Sci Rep 2017; 7:40548. [PMID: 28165027 PMCID: PMC5292698 DOI: 10.1038/srep40548] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 12/07/2016] [Indexed: 11/09/2022] Open
Abstract
Specific factors from the corneal epithelium underlying the stimulation of stromal fibrosis and myofibroblast formation in corneal wound healing have not been fully elucidated. Given that exosomes are known to transfer bioactive molecules among cells and play crucial roles in wound healing, angiogenesis, and cancer, we hypothesized that corneal epithelial cell-derived exosomes may gain access to the underlying stromal fibroblasts upon disruption of the epithelial basement membrane and that they induce signaling events essential for corneal wound healing. In the present study, exosome-like vesicles were observed between corneal epithelial cells and the stroma during wound healing after corneal epithelial debridement. These vesicles were also found in the stroma following anterior stromal keratectomy, in which surgical removal of the epithelium, basement membrane, and anterior stroma was performed. Exosomes secreted by mouse corneal epithelial cells were found to fuse to keratocytes in vitro and to induce myofibroblast transformation. In addition, epithelial cell-derived exosomes induced endothelial cell proliferation and ex vivo aortic ring sprouting. Our results indicate that epithelial cell-derived exosomes mediate communication between corneal epithelial cells and corneal keratocytes as well as vascular endothelial cells. These findings demonstrate that epithelial-derived exosomes may be involved in corneal wound healing and neovascularization, and thus, may serve as targets for potential therapeutic interventions.
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Affiliation(s)
- Kyu-Yeon Han
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Jennifer A Tran
- Schepens Eye Research Institute/MEE, Boston, Massachusetts, United States
| | - Jin-Hong Chang
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - Dimitri T Azar
- Department of Ophthalmology and Visual Sciences, Illinois Eye and Ear Infirmary, College of Medicine, University of Illinois at Chicago, Chicago, IL, United States
| | - James D Zieske
- Schepens Eye Research Institute/MEE, Boston, Massachusetts, United States.,Ophthalmology, Harvard Medical School, Boston, Massachusetts, United States
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109
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Suwanpradid J, Holcomb ZE, MacLeod AS. Emerging Skin T-Cell Functions in Response to Environmental Insults. J Invest Dermatol 2017; 137:288-294. [PMID: 27784595 PMCID: PMC5552043 DOI: 10.1016/j.jid.2016.08.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 08/12/2016] [Accepted: 08/18/2016] [Indexed: 01/12/2023]
Abstract
Skin is the primary barrier between the body and the outside world, functioning not only as a physical barrier, but also as an immunologic first line of defense. A large number of T cells populate the skin. This review highlights the ability of these cutaneous T cells to regulate skin-specific environmental threats, including microbes, injuries, solar UV radiation, and allergens. Since much of this knowledge has been advanced from murine studies, we focus our review on how the mouse state has informed the human state, emphasizing the key parallels and differences.
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Affiliation(s)
- Jutamas Suwanpradid
- Department of Dermatology, Duke University Medical Center, Durham, North Carolina, USA
| | - Zachary E Holcomb
- Department of Dermatology, Duke University Medical Center, Durham, North Carolina, USA; Duke University School of Medicine, Durham, North Carolina, USA
| | - Amanda S MacLeod
- Department of Dermatology, Duke University Medical Center, Durham, North Carolina, USA; Department of Immunology, Duke University Medical Center, Durham, North Carolina, USA; Pinnell Center for Investigative Dermatology and Skin Disease Research Center, Duke University Medical Center, Durham, North Carolina, USA.
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Zhou J, Ni M, Liu X, Ren Z, Zheng Z. Curcumol Promotes Vascular Endothelial Growth Factor (VEGF)-Mediated Diabetic Wound Healing in Streptozotocin-Induced Hyperglycemic Rats. Med Sci Monit 2017; 23:555-562. [PMID: 28138126 PMCID: PMC5297326 DOI: 10.12659/msm.902859] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 01/10/2017] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Wound healing in chronic diabetic mellitus is mainly associated with the management of angiogenesis. The angiogenic mechanism of vascular endothelial growth factor (VEGF) has been widely studied in the context of diabetic ulcers. The aim of this study was to investigate the wound-healing potential of curcumol in streptozotocin-induced diabetic rats. MATERIAL AND METHODS Sixty male SD (Sprague Dawley) rats were purchased and randomly assigned into four groups: a control group and a model group treated with blank ointment, a high-dose curcumol group, and a low-dose curcumol group. The number of animals in each group was 15. Diabetes was induced by an intraperitoneal injection of streptozotocin. Two cutaneous wounds were incised at the dorsal region of all the experimental animals. Wound healing was assessed for all animal groups by observing the rate of wound closure. The expression of VEGF at the wound sites was studied by immunohistochemical staining to evaluate the vascular endothelial cell reaction. VEGF protein and related mRNA levels were analyzed by Western blotting and RT-PCR (reverse transcription-polymerase chain reaction). RESULTS Curcumol treatment significantly increased the rates of wound closure in treated animals, and hence wound healing was drastically enhanced for treatment groups compared to control groups. Histological observations and related mRNA and protein levels showed a higher VEGF expression in the treatment groups. CONCLUSIONS Our analyses clearly suggested that the observed enhancement in wound healing as a result of curcumol administration was attributable to VEGF-mediated angiogenesis.
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Affiliation(s)
- Jie Zhou
- Development and Research Center of Official Silkworm Resources, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, Zhejiang, P.R. China
| | - Maowei Ni
- Zhejiang Cancer Hospital, Hangzhou, Zhejiang, P.R. China
| | - Xia Liu
- Development and Research Center of Official Silkworm Resources, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, Zhejiang, P.R. China
| | - Zeming Ren
- Development and Research Center of Official Silkworm Resources, Zhejiang Academy of Traditional Chinese Medicine, Hangzhou, Zhejiang, P.R. China
| | - Zhiguo Zheng
- Zhejiang Cancer Hospital, Hangzhou, Zhejiang, P.R. China
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Cai L, Xiong X, Kong X, Xie J. The Role of the Lysyl Oxidases in Tissue Repair and Remodeling: A Concise Review. Tissue Eng Regen Med 2017; 14:15-30. [PMID: 30603458 DOI: 10.1007/s13770-016-0007-0] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 04/01/2016] [Accepted: 04/17/2016] [Indexed: 02/05/2023] Open
Abstract
Tissue injury provokes a series of events containing inflammation, new tissue formation and tissue remodeling which are regulated by the spatially and temporally coordinated organization. It is an evolutionarily conserved, multi-cellular, multi-molecular process via complex signalling network. Tissue injury disorders present grievous clinical problems and are likely to increase since they are generally associated with the prevailing diseases such as diabetes, hypertension and obesity. Although these dynamic responses vary not only for the different types of trauma but also for the different organs, a balancing act between the tissue degradation and tissue synthesis is the same. In this process, the degradation of old extracellular matrix (ECM) elements and new ones' synthesis and deposition play an essential role, especially collagens. Lysyl oxidase (LOX) and four lysyl oxidase-like proteins are a group of enzymes capable of catalyzing cross-linking reaction of collagen and elastin, thus initiating the formation of covalent cross-links that insolubilize ECM proteins. In this way, LOX facilitates ECM stabilization through ECM formation, development, maturation and remodeling. This ability determines its potential role in tissue repair and regeneration. In this review, based on the current in vitro, animal and human in vivo studies which have shown the significant role of the LOXs in tissue repair, e.g., tendon regeneration, ligament healing, cutaneous wound healing, and cartilage remodeling, we focused on the role of the LOXs in inflammation phase, proliferation phase, and tissue remodeling phase of the repair process. By summarizing its healing role, we hope to shed light on the understanding of its potential in tissue repair and provide up to date therapeutic strategies towards related injuries.
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Affiliation(s)
- Linyi Cai
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041 People's Republic of China
| | - Xin Xiong
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041 People's Republic of China
| | - Xiangli Kong
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041 People's Republic of China
| | - Jing Xie
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041 People's Republic of China
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Anti-inflammatory and burn injury wound healing properties of the shell of Haliotis diversicolor. Altern Ther Health Med 2016; 16:487. [PMID: 27894302 PMCID: PMC5126830 DOI: 10.1186/s12906-016-1473-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 11/18/2016] [Indexed: 01/21/2023]
Abstract
Background The shell of Haliotis diversicolor, or shijueming (SJM), is a type of traditional Chinese medicine. The SJM has appeared in historical records as early as the third and fourth centuries. Historical records have revealed that SJM had mainly been used to treat eye diseases. After the Qing Dynasty (1757), records had emerged, detailing the use of SJM for treating skin injuries, particularly for treating poorly managed ulcers or traumatic wounds. Furthermore, in our anti-inflammation-screening system, SJM significantly inhibited the expression of pro-inflammatory proteins. Previous studies have yet to adopt an animal model to verify the phenomenon and described in the historical records regarding the efficacy of SJM in promoting wound healing. Besides, the mechanism of wound healing effect of SJM is also not clear. Methods This study applied in vitro and in vivo models, tissue section analysis, and western blotting to evaluate the effect of SJM on wound healing. The RAW 264.7 cells were used in anti-inflammatory activity assay and phagocytic assay. Male Wistar rats were used to evaluate the effect of SJM on burn injury healing. A copper block (2 × 2 cm, 150 g) preheated to 165 °C in a dry bath was used to contact the skin area for 10 s, thus creating a full-thickness burn injury. The results were analyzed by hematoxylin and eosin staining, picrosirius red staining and Western blotting. Results The results revealed that in the in vitro model, the presence of SJM decreased the inducible nitric oxide synthase (iNOS) expression and enhanced the functions of macrophages. The results of the rat burn injury model revealed that SJM decreased neutrophil infiltration, promoted wound healing, thus increasing the collagen I content and promoting the expression of transforming growth factor-beta 1 (TGF-β1) protein. We speculate that the effect and mechanism of SJM on promoting wound healing is related to macrophage activation. In the inflammation phase, SJM alleviates inflammation by inhibiting iNOS expression and removing neutrophils through phagocytosis. Furthermore, SJM induces the secretion of TGF-β1, converting collagen during the tissue remodeling phase. Conclusions According to our review of relevant literature, this is the first study that applied an evidence-based method to verify that SJM alleviates inflammation, enhances phagocytosis, and triggers wound healing after burn injury. The study findings reveal that SJM provides a promising therapeutic option for treating burn injury.
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Phytochemical Composition, Antioxidant Activity, and the Effect of the Aqueous Extract of Coffee ( Coffea arabica L.) Bean Residual Press Cake on the Skin Wound Healing. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2016; 2016:1923754. [PMID: 27965732 PMCID: PMC5124758 DOI: 10.1155/2016/1923754] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Revised: 10/09/2016] [Accepted: 10/17/2016] [Indexed: 11/20/2022]
Abstract
The world coffee consumption has been growing for its appreciated taste and its beneficial effects on health. The residual biomass of coffee, originated in the food industry after oil extraction from coffee beans, called coffee beans residual press cake, has attracted interest as a source of compounds with antioxidant activity. This study investigated the chemical composition of aqueous extracts of coffee beans residual press cake (AE), their antioxidant activity, and the effect of topical application on the skin wound healing, in animal model, of hydrogels containing the AE, chlorogenic acid (CGA), allantoin (positive control), and carbopol (negative control). The treatments' performance was compared by measuring the reduction of the wound area, with superior result (p < 0.05) for the green coffee AE (78.20%) with respect to roasted coffee AE (53.71%), allantoin (70.83%), and carbopol (23.56%). CGA hydrogels reduced significantly the wound area size on the inflammatory phase, which may be associated with the well known antioxidant and anti-inflammatory actions of that compound. The topic use of the coffee AE studied improved the skin wound healing and points to an interesting biotechnological application of the coffee bean residual press cake.
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114
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Koppenol DC, Vermolen FJ, Koppenol-Gonzalez GV, Niessen FB, van Zuijlen PPM, Vuik K. A mathematical model for the simulation of the contraction of burns. J Math Biol 2016; 75:1-31. [PMID: 27826736 PMCID: PMC5486856 DOI: 10.1007/s00285-016-1075-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 08/04/2016] [Indexed: 12/31/2022]
Abstract
A continuum hypothesis-based model is developed for the simulation of the contraction of burns in order to gain new insights into which elements of the healing response might have a substantial influence on this process. Tissue is modeled as a neo-Hookean solid. Furthermore, (myo)fibroblasts, collagen molecules, and a generic signaling molecule are selected as model components. An overview of the custom-made numerical algorithm is presented. Subsequently, good agreement is demonstrated with respect to variability in the evolution of the surface area of burns over time between the outcomes of computer simulations and measurements obtained in an experimental study. In the model this variability is caused by varying the values for some of its parameters simultaneously. A factorial design combined with a regression analysis are used to quantify the individual contributions of these parameter value variations to the dispersion in the surface area of healing burns. The analysis shows that almost all variability in the surface area can be explained by variability in the value for the myofibroblast apoptosis rate and, to a lesser extent, the value for the collagen molecule secretion rate. This suggests that most of the variability in the evolution of the surface area of burns over time in the experimental study might be attributed to variability in these two rates. Finally, a probabilistic analysis is used in order to investigate in more detail the effect of variability in the values for the two rates on the healing process. Results of this analysis are presented and discussed.
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Affiliation(s)
- Daniël C Koppenol
- Delft Institute of Applied Mathematics, Delft University of Technology, Delft, The Netherlands.
| | - Fred J Vermolen
- Delft Institute of Applied Mathematics, Delft University of Technology, Delft, The Netherlands
| | | | - Frank B Niessen
- Department of Plastic, Reconstructive and Hand Surgery, MOVE Research Institute, VU University Medical Centre, Amsterdam, The Netherlands
| | - Paul P M van Zuijlen
- Department of Plastic, Reconstructive and Hand Surgery, MOVE Research Institute, VU University Medical Centre, Amsterdam, The Netherlands.,Burn Centre, Red Cross Hospital, Beverwijk, The Netherlands.,Department of Plastic, Reconstructive and Hand Surgery, Red Cross Hospital, Beverwijk, The Netherlands
| | - Kees Vuik
- Delft Institute of Applied Mathematics, Delft University of Technology, Delft, The Netherlands
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115
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Noorbala MT, Noorbala M, Dashti-Rahmatabadi MH, Noorbala M, Noorbala R, Mozaffary B. Comparison of Hydrogel Produced by Radiation as Applied at the Research Center (Yazd Branch) With MaxGel and Routine Dressing for Second-Degree Burn Repair in Yazd Burn Hospital. IRANIAN RED CRESCENT MEDICAL JOURNAL 2016; 18:e24384. [PMID: 27781111 PMCID: PMC5068251 DOI: 10.5812/ircmj.24384] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 08/16/2015] [Accepted: 08/23/2015] [Indexed: 11/16/2022]
Abstract
Background Recently, the radiation application research center for the atomic energy organization of Yazd (Iran) has developed a hydrogel dressing which was evaluated for quality and safety in 2008. Its efficacy for assisting in the wound healing process was approved for animal use, and its use has proven to be more effective than a related Syrian material. Objectives We have already confirmed the safety and efficacy of Irgel use on mice (1, 2), so this study was conducted in order to further evaluate its effectiveness on human burn wounds, and to compare its efficacy with MaxGel, another hydrogel. A randomized clinical trial study was conducted to compare the efficacy of hydrogel produced by the radiation application research center (Yazd Branch) with MaxGel and routine dressing on burn repair in the Yazd Burn hospital. Materials and Methods In this study, 90 patients with second-degree burn injuries who were admitted to the Yazd Burn hospital were randomly divided into three equal groups. In the negative control group, the wounds were covered with sterile vaseline gauze followed by double sterile dry gauze and ultimately bandaged. In the test group, the wounds were covered by an Iranian hydrogel sheet (Irgel) instead of vaseline gauze, while in the positive control group, the wounds were covered by MaxGel instead of Irgel. At each visit (every other day), each dressing was renewed by its respective method and the wound area, pain score, and body temperature were recorded. At the beginning and at the end of the first and second week, five milliliters of venous blood were taken from all patients to evaluate hematologic parameters such as peripheral blood cell count, liver function, blood urea nitrogen, and creatinine. Results Before the intervention, the extent of the burns and pain sensations were quite similar among the different groups, but at the second week, the burn areas and pain scores for the Irgel group were significantly less than those of the normal control and the positive control groups (P < 0.05). Conclusions Based on our findings, both gels assist in the process of burn wound healing and pain reduction more effectively as compared with routine dressing. However, Irgel had better effects on wound healing and pain relief than MaxGel, which indicates a better quality of Irgel for this particular kind of treatment.
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Affiliation(s)
- Mohammad Taghi Noorbala
- Dermatology Department, Shahid Sadoughi University of Medical Sciences, Yazd, IR Iran
- Corresponding Author: Mohammad Taghi Noorbala, Dermatology Department, Shahid Sadoughi University of Medical Sciences, Yazd, IR Iran. Tel: +98-3515229290, Fax: +98-3515234080, E-mail:
| | - Mohammad Noorbala
- Dermatology Department, Shahid Sadoughi University of Medical Sciences, Yazd, IR Iran
| | | | - Mahdi Noorbala
- Dermatology Department, Shahid Sadoughi University of Medical Sciences, Yazd, IR Iran
| | - Roghaye Noorbala
- Dermatology Department, Shahid Sadoughi University of Medical Sciences, Yazd, IR Iran
| | - Behare Mozaffary
- Dermatology Department, Shahid Sadoughi University of Medical Sciences, Yazd, IR Iran
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116
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Dai M, Zhang Y, Yu M, Tian W. Therapeutic applications of conditioned medium from adipose tissue. Cell Prolif 2016; 49:561-7. [PMID: 27487984 PMCID: PMC6496245 DOI: 10.1111/cpr.12281] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 06/23/2016] [Indexed: 02/05/2023] Open
Abstract
For the past number of decades, adipose tissue has attracted significant interest due to its complicated composition and versatile functions. Adipose tissue is no longer considered to be just an energy-storing fat pad, but is also a key ring player in interaction networks between various organs and tissues. A wide range of factors released by adipose tissue are responsible for regulation of adipose tissue and other distant target tissues and cells, such as kidneys, skeletal muscle, the cardiovascular system and the immune system, in an auto-/paracrine manner. A mixture of bioactive molecules makes up the conditioned medium of adipose tissue. The beneficial role played by these bioactive molecules in angiogenesis, wound healing, tissue regeneration and immunomodulation has been demonstrated by various studies. Study of this conditioned medium helps deepen our understanding of underlying mechanisms and broadens the potential for therapeutic applications. In this review, we have aimed to improve fundamental understanding of conditioned medium from adipose tissue and to summarize recent efforts to study its therapeutic applications.
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Affiliation(s)
- Minjia Dai
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yan Zhang
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu, 610041, China
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan Province, China
- Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Mei Yu
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu, 610041, China.
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan Province, China.
| | - Weidong Tian
- State Key Laboratory of Oral Disease, West China School of Stomatology, Sichuan University, Chengdu, 610041, China.
- National Engineering Laboratory for Oral Regenerative Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, Sichuan Province, China.
- Department of Oral and Maxillofacial Surgery, West China College of Stomatology, Sichuan University, Chengdu, 610041, China.
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117
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Koppenol DC, Vermolen FJ, Niessen FB, van Zuijlen PPM, Vuik K. A biomechanical mathematical model for the collagen bundle distribution-dependent contraction and subsequent retraction of healing dermal wounds. Biomech Model Mechanobiol 2016; 16:345-361. [PMID: 27581323 PMCID: PMC5285442 DOI: 10.1007/s10237-016-0821-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2016] [Accepted: 08/19/2016] [Indexed: 12/05/2022]
Abstract
A continuum hypothesis-based, biomechanical model is presented for the simulation of the collagen bundle distribution-dependent contraction and subsequent retraction of healing dermal wounds that cover a large surface area. Since wound contraction mainly takes place in the dermal layer of the skin, solely a portion of this layer is included explicitly into the model. This portion of dermal layer is modeled as a heterogeneous, orthotropic continuous solid with bulk mechanical properties that are locally dependent on both the local concentration and the local geometrical arrangement of the collagen bundles. With respect to the dynamic regulation of the geometrical arrangement of the collagen bundles, it is assumed that a portion of the collagen molecules are deposited and reoriented in the direction of movement of (myo)fibroblasts. The remainder of the newly secreted collagen molecules are deposited by ratio in the direction of the present collagen bundles. Simulation results show that the distribution of the collagen bundles influences the evolution over time of both the shape of the wounded area and the degree of overall contraction of the wounded area. Interestingly, these effects are solely a consequence of alterations in the initial overall distribution of the collagen bundles, and not a consequence of alterations in the evolution over time of the different cell densities and concentrations of the modeled constituents. In accordance with experimental observations, simulation results show furthermore that ultimately the majority of the collagen molecules ends up permanently oriented toward the center of the wound and in the plane that runs parallel to the surface of the skin.
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Affiliation(s)
- Daniël C Koppenol
- Delft Institute of Applied Mathematics, Delft University of Technology, Delft, The Netherlands.
| | - Fred J Vermolen
- Delft Institute of Applied Mathematics, Delft University of Technology, Delft, The Netherlands
| | - Frank B Niessen
- Department of Plastic, Reconstructive and Hand Surgery, MOVE Research Institute, VU University Medical Centre, Amsterdam, The Netherlands
| | - Paul P M van Zuijlen
- Department of Plastic, Reconstructive and Hand Surgery, MOVE Research Institute, VU University Medical Centre, Amsterdam, The Netherlands.,Burn Centre, Red Cross Hospital, Beverwijk, The Netherlands.,Department of Plastic, Reconstructive and Hand Surgery, Red Cross Hospital, Beverwijk, The Netherlands
| | - Kees Vuik
- Delft Institute of Applied Mathematics, Delft University of Technology, Delft, The Netherlands
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118
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Oxidized (non)-regenerated cellulose affects fundamental cellular processes of wound healing. Sci Rep 2016; 6:32238. [PMID: 27557881 PMCID: PMC4997603 DOI: 10.1038/srep32238] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2016] [Accepted: 08/03/2016] [Indexed: 11/16/2022] Open
Abstract
In this study we investigated how hemostats such as oxidized regenerated cellulose (ORC, TABOTAMP) and oxidized non-regenerated cellulose (ONRC, RESORBA CELL) influence local cellular behavior and contraction of the extracellular matrix (ECM). Human stromal fibroblasts were inoculated in vitro with ORC and ONRC. Cell proliferation was assayed over time, and migration was evaluated by Live Cell imaging microscopy. Fibroblasts grown in collagen-gels were treated with ORC or ONRC, and ECM contraction was measured utilizing a contraction assay. An absolute pH decline was observed with both ORC and ONRC after 1 hour. Mean daily cell proliferation, migration and matrix contraction were more strongly inhibited by ONRC when compared with ORC (p < 0.05). When control media was pH-lowered to match the lower pH values typically seen with ORC and ONRC, significant differences in cell proliferation and migration were still observed between ONRC and ORC (p < 0.05). However, in these pH conditions, inhibition of matrix contraction was only significant for ONRC (p < 0.05). We find that ORC and ONRC inhibit fibroblast proliferation, migration and matrix contraction, and stronger inhibition of these essential cellular processes of wound healing were observed for ONRC when compared with ORC. These results will require further validation in future in vivo experiments to clarify the clinical implications for hemostat use in post-surgical wound healing.
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119
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Qin W, Li Y, Wang J, Qi X, Wang RK. In Vivo Monitoring of Microcirculation in Burn Healing Process with Optical Microangiography. Adv Wound Care (New Rochelle) 2016; 5:332-337. [PMID: 27602252 DOI: 10.1089/wound.2015.0669] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 10/01/2015] [Indexed: 12/14/2022] Open
Abstract
Objective: Optical microangiography (OMAG)-based optical coherence tomography is a noninvasive technique capable of imaging functional microvasculature innervating scanned tissue volume. In this study, we utilize OMAG to investigate dynamic changes of microcirculation during the healing process of a burn. Approach: A soft-contact superficial burn injury was induced on a mouse ear with 1 μL 70°C hot water. Microangiograms were generated by using OMAG before and after the burn. Results: Vessel recruitment and remodeling were observed in the healing process. Burn injury reached to the worst extent within the first 24 h and had no expansion thereafter. The interrupted microcirculation in the mouse ear was progressively recovered in the consequent postburn days and completely healed on postburn day 7. Innovation: OMAG provides a novel way for noninvasive visualization and quantification of vasculature changes over time after burn injuries. The high resolution achieved by the imaging system reveals microvascular details down to capillary level. Conclusion: Our results demonstrated that OMAG has great potential to improve the understanding of microcirculatory responses to burns and thus benefit the development of effective therapeutics.
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Affiliation(s)
- Wan Qin
- Department of Bioengineering, University of Washington, Seattle, Washington
| | - Yuandong Li
- Department of Bioengineering, University of Washington, Seattle, Washington
| | - Jingang Wang
- Department of Bioengineering, University of Washington, Seattle, Washington
| | - Xiaoli Qi
- Department of Bioengineering, University of Washington, Seattle, Washington
| | - Ruikang K. Wang
- Department of Bioengineering, University of Washington, Seattle, Washington
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120
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Stone RC, Pastar I, Ojeh N, Chen V, Liu S, Garzon KI, Tomic-Canic M. Epithelial-mesenchymal transition in tissue repair and fibrosis. Cell Tissue Res 2016; 365:495-506. [PMID: 27461257 DOI: 10.1007/s00441-016-2464-0] [Citation(s) in RCA: 386] [Impact Index Per Article: 48.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Accepted: 06/24/2016] [Indexed: 12/28/2022]
Abstract
The epithelial-mesenchymal transition (EMT) describes the global process by which stationary epithelial cells undergo phenotypic changes, including the loss of cell-cell adhesion and apical-basal polarity, and acquire mesenchymal characteristics that confer migratory capacity. EMT and its converse, MET (mesenchymal-epithelial transition), are integral stages of many physiologic processes and, as such, are tightly coordinated by a host of molecular regulators. Converging lines of evidence have identified EMT as a component of cutaneous wound healing, during which otherwise stationary keratinocytes (the resident skin epithelial cells) migrate across the wound bed to restore the epidermal barrier. Moreover, EMT plays a role in the development of scarring and fibrosis, as the matrix-producing myofibroblasts arise from cells of the epithelial lineage in response to injury but are pathologically sustained instead of undergoing MET or apoptosis. In this review, we summarize the role of EMT in physiologic repair and pathologic fibrosis of tissues and organs. We conclude that further investigation into the contribution of EMT to the faulty repair of fibrotic wounds might identify components of EMT signaling as common therapeutic targets for impaired healing in many tissues. Graphical Abstract Model for injury-triggered EMT activation in physiologic wound repair (left) and fibrotic wound healing (right).
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Affiliation(s)
- Rivka C Stone
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, 1600 NW 10th Avenue, RMSB, Room 2023A, Miami, FL 33136, USA
- The Research Residency Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, Miami, Fla., USA
| | - Irena Pastar
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, 1600 NW 10th Avenue, RMSB, Room 2023A, Miami, FL 33136, USA
| | - Nkemcho Ojeh
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, 1600 NW 10th Avenue, RMSB, Room 2023A, Miami, FL 33136, USA
- Faculty of Medical Sciences, The University of the West Indies, Bridgetown, Barbados
| | - Vivien Chen
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, 1600 NW 10th Avenue, RMSB, Room 2023A, Miami, FL 33136, USA
| | - Sophia Liu
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, 1600 NW 10th Avenue, RMSB, Room 2023A, Miami, FL 33136, USA
| | - Karen I Garzon
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, 1600 NW 10th Avenue, RMSB, Room 2023A, Miami, FL 33136, USA
| | - Marjana Tomic-Canic
- Wound Healing and Regenerative Medicine Research Program, Department of Dermatology and Cutaneous Surgery, University of Miami Miller School of Medicine, 1600 NW 10th Avenue, RMSB, Room 2023A, Miami, FL 33136, USA.
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Wu J, Zhu J, He C, Xiao Z, Ye J, Li Y, Chen A, Zhang H, Li X, Lin L, Zhao Y, Zheng J, Xiao J. Comparative Study of Heparin-Poloxamer Hydrogel Modified bFGF and aFGF for in Vivo Wound Healing Efficiency. ACS APPLIED MATERIALS & INTERFACES 2016; 8:18710-18721. [PMID: 27384134 DOI: 10.1021/acsami.6b06047] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Wound therapy remains a clinical challenge. Incorporation of growth factors (GFs) into heparin-functionalized polymer hydrogel is considered as a promising strategy to improve wound healing efficiency. However, different GFs incorporation into the same heparin-based hydrogels often lead to different wound healing effects, and the underlying GF-induced wound healing mechanisms still remain elusive. Herein, we developed a thermos-sensitive heparin-poloxamer (HP) hydrogel to load and deliver different GFs (aFGF and bFGF) for wound healing in vivo. The resulting GFs-based hydrogels with and without HP hydrogels were systematically evaluated and compared for their wound healing efficiency by extensive in vivo tests, including wound closure rate, granulation formation, re-epithelization, cell proliferation, collagen, and angiogenesis expressions. While all GFs-based dressings with and without HP hydrogels exhibited better wound healing efficacy than controls, both HP-aFGF and HP-bFGF hydrogels demonstrated their superior healing activity to improve wound closure, granulation formation, re-epithelization, and blood vessel density by up-regulation of PCNA proliferation and collagen synthesis, as compared to GF dressings alone. More importantly, HP-aFGF dressings exhibited the higher healing efficacy than HP-bFGF dressings, indicating that different a/bFGF surface properties lead to different binding and release behaviors in HP hydrogels, both of which will affect different wound healing efficiency. On the basis of experimental observations, the working mechanisms of different healing effects of HP-GFs on full skin removal wound were proposed. This work provides different views of the design and development of an effective hydrogel-based delivery system for GFs toward rapid wound healing.
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Affiliation(s)
- Jiang Wu
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University , Wenzhou, Zhejiang 325035, China
| | - Jingjing Zhu
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University , Wenzhou, Zhejiang 325035, China
| | - Chaochao He
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University , Wenzhou, Zhejiang 325035, China
| | - Zecong Xiao
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University , Wenzhou, Zhejiang 325035, China
| | - Jingjing Ye
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University , Wenzhou, Zhejiang 325035, China
| | - Yi Li
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University , Wenzhou, Zhejiang 325035, China
| | - Anqi Chen
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University , Wenzhou, Zhejiang 325035, China
| | - Hongyu Zhang
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University , Wenzhou, Zhejiang 325035, China
| | - Xiaokun Li
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University , Wenzhou, Zhejiang 325035, China
| | - Li Lin
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University , Wenzhou, Zhejiang 325035, China
| | - Yingzheng Zhao
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University , Wenzhou, Zhejiang 325035, China
| | - Jie Zheng
- Department of Chemical and Biomolecular Engineering, The University of Akron , Akron, Ohio 44325, United States
| | - Jian Xiao
- School of Pharmaceutical Sciences, Key Laboratory of Biotechnology and Pharmaceutical Engineering, Wenzhou Medical University , Wenzhou, Zhejiang 325035, China
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A mathematical model for the simulation of the formation and the subsequent regression of hypertrophic scar tissue after dermal wounding. Biomech Model Mechanobiol 2016; 16:15-32. [PMID: 27229739 PMCID: PMC5285433 DOI: 10.1007/s10237-016-0799-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 05/11/2016] [Indexed: 01/13/2023]
Abstract
A continuum hypothesis-based model is presented for the simulation of the formation and the subsequent regression of hypertrophic scar tissue after dermal wounding. Solely the dermal layer of the skin is modeled explicitly and it is modeled as a heterogeneous, isotropic and compressible neo-Hookean solid. With respect to the constituents of the dermal layer, the following components are selected as primary model components: fibroblasts, myofibroblasts, a generic signaling molecule and collagen molecules. A good match with respect to the evolution of the thickness of the dermal layer of scars between the outcomes of simulations and clinical measurements on hypertrophic scars at different time points after injury in human subjects is demonstrated. Interestingly, the comparison between the outcomes of the simulations and the clinical measurements demonstrates that a relatively high apoptosis rate of myofibroblasts results in scar tissue that behaves more like normal scar tissue with respect to the evolution of the thickness of the tissue over time, while a relatively low apoptosis rate results in scar tissue that behaves like hypertrophic scar tissue with respect to the evolution of the thickness of the tissue over time. Our ultimate goal is to construct models with which the properties of newly generated tissues that form during wound healing can be predicted with a high degree of certainty. The development of the presented model is considered by us as a step toward their construction.
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Santos RMFD, Sampaio CPP, Moraes DPD, Lima RLD. Evaluation of the Effects of Bismuth Subgallate on Wound Healing in Rats. Histological Findings. Int Arch Otorhinolaryngol 2016; 20:377-381. [PMID: 27746843 PMCID: PMC5063747 DOI: 10.1055/s-0036-1583760] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 03/17/2016] [Indexed: 11/22/2022] Open
Abstract
Introduction Bismuth subgallate (BS) is a yellow and odorless powder that has hemostatic astringent properties. Some otorhinolaryngologists and dentists currently use this substance to enhance wound healing. Objective The objective of this study is to evaluate the effects of bismuth subgallate on wound healing, through the analysis of inflammatory process, collagen production, and angiogenesis. Method A standard wound was made on the back of 60 male Wistar rats, using a biopsy punch. We created two groups: the experimental group, which underwent daily application of 0.5mg BS over the entire wound, and the control group, which underwent daily application of sodium chloride 0.9%. We performed a qualitative evaluation of the tissue on the third, seventh, and fourteenth day. We assessed inflammatory markers using Hematoxylin and Eosin (HE) stain, used Picrosirius stain for collagen analysis, and immunohistochemistry was used for angiogenesis analysis through evaluation of smooth muscle proliferation. Results Statistically, we found no significant differences between groups regarding inflammatory response on the third (p = 1), seventh (p = 0.474), and fourteenth day (p = 0.303). Also, collagen type I and III production showed no statistical differences between groups on the third (p = 0.436), seventh (p = 0.853), and fourteenth day (p = 0.436) of analysis. Immunohistochemistry did not present differences on angiogenesis between experimental and control group on the third (p = 0.280), seventh (p = 0.971), and fourteenth day (p = 0.218). Conclusion BS does not promote significant changes in inflammatory response, collagen, and angiogenesis. Thus, it does not influence healing on skin wounds on rats.
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Choi YH, Jang IH, Heo SC, Kim JH, Hwang NS. Biomedical therapy using synthetic WKYMVm hexapeptide. Organogenesis 2016; 12:53-60. [PMID: 27077939 DOI: 10.1080/15476278.2016.1172155] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
WKYMVm hexapeptide has been identified as a strong FPR2 agonist through a library screening of synthetic peptides. The FPR2 has been reported to play a crucial role in inflammation and angiogenic responses via stimulation of chemotaxis, migration, cell proliferation, wound healing and vessel growth. Recently, the therapeutic effects of WKYMVm have been reported in various disease models. In cutaneous wound model in diabetic mice, WKYMVm facilitated wound healing processes by stimulating the formation of capillary and arteriole and re-epithelialization. In coronary artery stenosis model, WKYMVm coating on stent promoted re-endothelialization and lowered restenosis rate. In hindlimb ischemia mouse model, intramuscular injection of WKYMVm promoted homing of exogenously transplanted endothelial colony-forming cells and neovascularization, resulting in salvaging hindlimb. Furthermore, a single injection of WKYMVm encapsulated in poly (lactide-co-glycolide) microspheres was demonstrated to be as efficient as multiple injections of WKYMVm in restoring blood flow in hindlimb ischemia model. These observations may open up promising biomedical applications of WKYMVm for tissue repairs and regenerations.
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Affiliation(s)
- Young Hwan Choi
- a School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University , Seoul , Republic of Korea
| | - Il Ho Jang
- b Department of Physiology , School of Medicine, Pusan National University Yangsan Hospital , Yangsan , Republic of Korea
| | - Soon Chul Heo
- b Department of Physiology , School of Medicine, Pusan National University Yangsan Hospital , Yangsan , Republic of Korea
| | - Jae Ho Kim
- b Department of Physiology , School of Medicine, Pusan National University Yangsan Hospital , Yangsan , Republic of Korea.,c Research Institute of Convergence Biomedical Science and Technology , Yangsan , Gyeongsangnam-do , Republic of Korea
| | - Nathaniel S Hwang
- a School of Chemical and Biological Engineering, Institute of Chemical Processes, Seoul National University , Seoul , Republic of Korea.,d N-Bio Institute , Seoul National University , Seoul , Republic of Korea
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125
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Rastegarpour A, Cheung M, Vardhan M, Ibrahim MM, Butler CE, Levinson H. Surgical mesh for ventral incisional hernia repairs: Understanding mesh design. Plast Surg (Oakv) 2016; 24:41-50. [PMID: 27054138 DOI: 10.4172/plastic-surgery.1000955] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Surgical mesh has become an indispensable tool in hernia repair to improve outcomes and reduce costs; however, efforts are constantly being undertaken in mesh development to overcome postoperative complications. Common complications include infection, pain, adhesions, mesh extrusion and hernia recurrence. Reducing the complications of mesh implantation is of utmost importance given that hernias occur in hundreds of thousands of patients per year in the United States. In the present review, the authors present the different types of hernia meshes, discuss the key properties of mesh design, and demonstrate how each design element affects performance and complications. The present article will provide a basis for surgeons to understand which mesh to choose for patient care and why, and will explain the important technological aspects that will continue to evolve over the ensuing years.
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Affiliation(s)
- Ali Rastegarpour
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Duke University Medical Center
| | - Michael Cheung
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Duke University Medical Center
| | - Madhurima Vardhan
- Department of Biomedical Engineering, Duke University, Pratt School of Engineering, Durham, North Carolina
| | - Mohamed M Ibrahim
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Duke University Medical Center
| | - Charles E Butler
- Department of Plastic Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Howard Levinson
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Duke University Medical Center
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126
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Velnar T, Bunc G, Klobucar R, Gradisnik L. Biomaterials and host versus graft response: a short review. Bosn J Basic Med Sci 2016; 16:82-90. [PMID: 26894284 PMCID: PMC4853000 DOI: 10.17305/bjbms.2016.525] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 02/18/2016] [Accepted: 07/16/2015] [Indexed: 01/27/2023] Open
Abstract
Biomaterials and biotechnology are increasing becoming an important area in modern medicine. The main aim in this area is the development of materials, which are biocompatible to normal tissue. Tissue-implant interactions with molecular, biological and cellular characteristics at the implant-tissue interface are important for the use and development of implants. Implantation may cause an inflammatory and immune response in tissue, foreign body reaction, systemic toxicity and imminent infection. Tissue-implant interactions determine the implant life-period. The aims of the study are to consider the biological response to implants. Biomaterials and host reactions to implants and their mechanisms are also briefly discussed.
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Affiliation(s)
- Tomaz Velnar
- University Medical Centre Maribor, Department of Neurosurgery.
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127
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Dordea M, Aspinall SR. Short and long-term cosmesis of cervical thyroidectomy scars. Ann R Coll Surg Engl 2016; 98:11-7. [PMID: 26688393 PMCID: PMC5234393 DOI: 10.1308/rcsann.2016.0022] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/05/2015] [Indexed: 12/14/2022] Open
Abstract
Introduction Multiple surgical approaches to the thyroid gland have been described via cervical or extracervical routes. Improved cosmesis, patient satisfaction, reduced pain (procedure dependent) and early discharge have all been reported for minimally invasive approaches with similar safety profiles and long-term outcomes to conventional surgery. This review summarises the current evidence base for improved cosmesis with minimally invasive cervical approaches to the thyroid gland compared with conventional surgery. Methods A systematic review was undertaken. The MEDLINE(®), Embase™ and Cochrane databases were searched for relevant articles. Results A total of 57 papers thyroid papers were identified. Of those, 20 reported some form of cosmetic outcome assessment. There were 6 randomised controlled trials with 412 patients (evidence level 2B), 7 cohort studies with 3,073 patients (level 3B) and 7 non-comparative case series with 1,575 patients (level 4). There was significant heterogeneity between studies in terms of wound closure technique, timing of scar assessment and scar assessment scales (validated and non-validated). Most studies performed early scar assessments, some using non-validated scar assessment tools. Conclusions Assessment of cosmesis is complex and requires rigorous methodology. Evidence from healing/remodelling studies suggests scar maturation is a long-term process. This calls into question the value of early scar assessment. Current evidence does not support minimally invasive surgical approaches to the thyroid gland if improved long-term cosmesis is the goal.
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Affiliation(s)
- M Dordea
- Northumbria Healthcare NHS Foundation Trust , UK
| | - S R Aspinall
- Northumbria Healthcare NHS Foundation Trust , UK
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128
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Mishra PJ, Mishra PJ, Banerjee D. Keratinocyte Induced Differentiation of Mesenchymal Stem Cells into Dermal Myofibroblasts: A Role in Effective Wound Healing. ACTA ACUST UNITED AC 2016; 2016:5-32. [PMID: 27294075 DOI: 10.13052/ijts2246-8765.2016.002] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
We have previously demonstrated that human mesenchymal stem cells (hMSCs) migrate toward human keratinocytes as well as toward conditioned medium from cultured human keratinocytes (KCM) indicating that the hMSCs respond to signals from keratinocytes [1]. Using fluorescently labeled cells we now show that in vitro hMSCs appear to surround keratinocytes, and this organization is recapitulated in vivo. Incubation of hMSCs with KCM induced dermal myofibroblast like differentiation characterized by expression of cytoskeletal markers and increased expression of cytokines including SDF-1, IL-8, IL-6 and CXCL5. Interaction of keratinocytes with hMSCs appears to be important in the wound healing process. Therapeutic efficacy of hMSCs in wound healing was examined in two animal models representing normal and chronic wound healing. Accelerated wound healing was observed when hMSCs and KCM exposed hMSCs (KCMSCs) were injected near wound site in nude and NOD/SCID mice. Long term follow up of wound healing revealed that in the hMSC treated wounds there was little evidence of residual scarring. These dermal myofibroblast like hMSCs add to the wound healing process. Together, the keratinocyte and hMSCs morphed dermal myofibroblast like cells as well as the factors secreted by these cells support wound healing with minimal scarring. The ability of hMSCs to support wound healing process represents another striking example of the importance of keratinocyte and hMSCs interplay in the wound microenvironment resulting in effective wound healing with minimal scarring.
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Affiliation(s)
- Pravin J Mishra
- Intermountain Precision Genomics, Intermountain Healthcare, Dixie Regional Medical Center 292 South 1470 East, Suite 201 & 301, St. George, UT 84770, USA
| | - Prasun J Mishra
- Department of Biochemical and Cellular Pharmacology, Genentech, 1, DNA Way, South San Francisco, California 94080, USA
| | - Debabrata Banerjee
- Department of Pharmacology, Robert Wood Johnson Medical School, Graduate School of Biomedical Sciences, New Brunswick-Piscataway, Rutgers University, 675 Hoes Lane West, Piscataway, NJ 08854. USA
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Cremers NAJ, Suttorp M, Gerritsen MM, Wong RJ, van Run-van Breda C, van Dam GM, Brouwer KM, Kuijpers-Jagtman AM, Carels CEL, Lundvig DMS, Wagener FADTG. Mechanical Stress Changes the Complex Interplay Between HO-1, Inflammation and Fibrosis, During Excisional Wound Repair. Front Med (Lausanne) 2015; 2:86. [PMID: 26697429 PMCID: PMC4678194 DOI: 10.3389/fmed.2015.00086] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 11/24/2015] [Indexed: 01/11/2023] Open
Abstract
Mechanical stress following surgery or injury can promote pathological wound healing and fibrosis, and lead to functional loss and esthetic problems. Splinted excisional wounds can be used as a model for inducing mechanical stress. The cytoprotective enzyme heme oxygenase-1 (HO-1) is thought to orchestrate the defense against inflammatory and oxidative insults that drive fibrosis. Here, we investigated the activation of the HO-1 system in a splinted and non-splinted full-thickness excisional wound model using HO-1-luc transgenic mice. Effects of splinting on wound closure, HO-1 promoter activity, and markers of inflammation and fibrosis were assessed. After seven days, splinted wounds were more than three times larger than non-splinted wounds, demonstrating a delay in wound closure. HO-1 promoter activity rapidly decreased following removal of the (epi)dermis, but was induced in both splinted and non-splinted wounds during skin repair. Splinting induced more HO-1 gene expression in 7-day wounds; however, HO-1 protein expression remained lower in the epidermis, likely due to lower numbers of keratinocytes in the re-epithelialization tissue. Higher numbers of F4/80-positive macrophages, αSMA-positive myofibroblasts, and increased levels of the inflammatory genes IL-1β, TNF-α, and COX-2 were present in 7-day splinted wounds. Surprisingly, mRNA expression of newly formed collagen (type III) was lower in 7-day wounds after splinting, whereas, VEGF and MMP-9 were increased. In summary, these data demonstrate that splinting delays cutaneous wound closure and HO-1 protein induction. The pro-inflammatory environment following splinting may facilitate higher myofibroblast numbers and increase the risk of fibrosis and scar formation. Therefore, inducing HO-1 activity against mechanical stress-induced inflammation and fibrosis may be an interesting strategy to prevent negative effects of surgery on growth and function in patients with orofacial clefts or in patients with burns.
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Affiliation(s)
- Niels A J Cremers
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands ; Experimental Rheumatology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands
| | - Maarten Suttorp
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands
| | - Marlous M Gerritsen
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands
| | - Ronald J Wong
- Department of Pediatrics, Stanford University School of Medicine , Stanford, CA , USA
| | - Coby van Run-van Breda
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands
| | - Gooitzen M van Dam
- Department of Surgery, University Medical Center Groningen , Groningen , Netherlands
| | - Katrien M Brouwer
- Department of Plastic, Reconstructive and Hand Surgery, VU University Medical Center, MOVE Research Institute Amsterdam , Amsterdam , Netherlands ; Association of Dutch Burn Centers , Beverwijk , Netherlands
| | - Anne Marie Kuijpers-Jagtman
- Department of Orthodontics and Craniofacial Biology, Cleft Palate Craniofacial Center, Radboud University Medical Center , Nijmegen , Netherlands
| | - Carine E L Carels
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands
| | - Ditte M S Lundvig
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands
| | - Frank A D T G Wagener
- Department of Orthodontics and Craniofacial Biology, Radboud University Medical Center, Radboud Institute for Molecular Life Sciences , Nijmegen , Netherlands
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Balzer J, Heuer K, Demir E, Hoffmanns MA, Baldus S, Fuchs PC, Awakowicz P, Suschek CV, Opländer C. Non-Thermal Dielectric Barrier Discharge (DBD) Effects on Proliferation and Differentiation of Human Fibroblasts Are Primary Mediated by Hydrogen Peroxide. PLoS One 2015; 10:e0144968. [PMID: 26661594 PMCID: PMC4682795 DOI: 10.1371/journal.pone.0144968] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 11/25/2015] [Indexed: 11/30/2022] Open
Abstract
The proliferation of fibroblasts and myofibroblast differentiation are crucial in wound healing and wound closure. Impaired wound healing is often correlated with chronic bacterial contamination of the wound area. A new promising approach to overcome wound contamination, particularly infection with antibiotic-resistant pathogens, is the topical treatment with non-thermal “cold” atmospheric plasma (CAP). Dielectric barrier discharge (DBD) devices generate CAP containing active and reactive species, which have antibacterial effects but also may affect treated tissue/cells. Moreover, DBD treatment acidifies wound fluids and leads to an accumulation of hydrogen peroxide (H2O2) and nitric oxide products, such as nitrite and nitrate, in the wound. Thus, in this paper, we addressed the question of whether DBD-induced chemical changes may interfere with wound healing-relevant cell parameters such as viability, proliferation and myofibroblast differentiation of primary human fibroblasts. DBD treatment of 250 μl buffered saline (PBS) led to a treatment time-dependent acidification (pH 6.7; 300 s) and coincidently accumulation of nitrite (~300 μM), nitrate (~1 mM) and H2O2 (~200 μM). Fibroblast viability was reduced by single DBD treatments (60–300 s; ~77–66%) or exposure to freshly DBD-treated PBS (60–300 s; ~75–55%), accompanied by prolonged proliferation inhibition of the remaining cells. In addition, the total number of myofibroblasts was reduced, whereas in contrast, the myofibroblast frequency was significantly increased 12 days after DBD treatment or exposure to DBD-treated PBS. Control experiments mimicking DBD treatment indicate that plasma-generated H2O2 was mainly responsible for the decreased proliferation and differentiation, but not for DBD-induced toxicity. In conclusion, apart from antibacterial effects, DBD/CAP may mediate biological processes, for example, wound healing by accumulation of H2O2. Therefore, a clinical DBD treatment must be well-balanced in order to avoid possible unwanted side effects such as a delayed healing process.
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Affiliation(s)
- Julian Balzer
- Department of Trauma and Hand Surgery, Medical Faculty of the Heinrich-Heine-University, Düsseldorf, Germany
| | - Kiara Heuer
- Department of Trauma and Hand Surgery, Medical Faculty of the Heinrich-Heine-University, Düsseldorf, Germany
| | - Erhan Demir
- Department of Plastic Surgery, Hand Surgery, Burn Center, Merheim Hospital Cologne, University of Witten/Herdecke, Köln, Germany
| | - Martin A. Hoffmanns
- Department of Trauma and Hand Surgery, Medical Faculty of the Heinrich-Heine-University, Düsseldorf, Germany
| | - Sabrina Baldus
- Institute for Electrical Engineering and Plasma Technology, Ruhr University, Bochum, Germany
| | - Paul C. Fuchs
- Department of Plastic Surgery, Hand Surgery, Burn Center, Merheim Hospital Cologne, University of Witten/Herdecke, Köln, Germany
| | - Peter Awakowicz
- Institute for Electrical Engineering and Plasma Technology, Ruhr University, Bochum, Germany
| | - Christoph V. Suschek
- Department of Trauma and Hand Surgery, Medical Faculty of the Heinrich-Heine-University, Düsseldorf, Germany
| | - Christian Opländer
- Department of Trauma and Hand Surgery, Medical Faculty of the Heinrich-Heine-University, Düsseldorf, Germany
- * E-mail:
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Oriented cell division: new roles in guiding skin wound repair and regeneration. Biosci Rep 2015; 35:BSR20150225. [PMID: 26582817 PMCID: PMC4708010 DOI: 10.1042/bsr20150225] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Accepted: 11/12/2015] [Indexed: 01/14/2023] Open
Abstract
Tissue morphogenesis depends on precise regulation and timely co-ordination of cell division and also on the control of the direction of cell division. Establishment of polarity division axis, correct alignment of the mitotic spindle, segregation of fate determinants equally or unequally between daughter cells, are essential for the realization of oriented cell division. Furthermore, oriented cell division is regulated by intrinsic cues, extrinsic cues and other cues, such as cell geometry and polarity. However, dysregulation of cell division orientation could lead to abnormal tissue development and function. In the present study, we review recent studies on the molecular mechanism of cell division orientation and explain their new roles in skin repair and regeneration.
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132
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Peacock HM, Gilbert EAB, Vickaryous MK. Scar-free cutaneous wound healing in the leopard gecko, Eublepharis macularius. J Anat 2015; 227:596-610. [PMID: 26360824 PMCID: PMC4609196 DOI: 10.1111/joa.12368] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/17/2015] [Indexed: 12/13/2022] Open
Abstract
Cutaneous wounds heal with two possible outcomes: scarification or near-perfect integumentary restoration. Whereas scar formation has been intensively investigated, less is known about the tissue-level events characterising wounds that spontaneously heal scar-free, particularly in non-foetal amniotes. Here, a spatiotemporal investigation of scar-free cutaneous wound healing following full-thickness excisional biopsies to the tail and body of leopard geckos (Eublepharis macularius) is provided. All injuries healed without scarring. Cutaneous repair involves the development of a cell-rich aggregate within the wound bed, similar to scarring wounds. Unlike scar formation, scar-free healing involves a more rapid closure of the wound epithelium, and a delay in blood vessel development and collagen deposition within the wound bed. It was found that, while granulation tissue of scarring wounds is hypervascular, scar-free wound healing conspicuously does not involve a period of exuberant blood vessel formation. In addition, during scar-free wound healing the newly formed blood vessels are typically perivascular cell-supported. Immunohistochemistry revealed widespread expression of both the pro-angiogenic factor vascular endothelial growth factor A and the anti-angiogenic factor thrombospondin-1 within the healing wound. It was found that scar-free wound healing is an intrinsic property of leopard gecko integument, and involves a modulation of the cutaneous scar repair program. This proportional revascularisation is an important factor in scar-free wound healing.
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Affiliation(s)
- Hanna M Peacock
- Department of Biomedical Sciences, Ontario Veterinary College, University of GuelphGuelph, ON, Canada
| | - Emily A B Gilbert
- Department of Biomedical Sciences, Ontario Veterinary College, University of GuelphGuelph, ON, Canada
| | - Matthew K Vickaryous
- Department of Biomedical Sciences, Ontario Veterinary College, University of GuelphGuelph, ON, Canada
- Correspondence, Matthew K. Vickaryous, Associate Professor, Department of Biomedical Science, University of Guelph, 50 Stone Road East, Guelph, ON, Canada N1G 2W1. T: 1-519-760-2374 x 53871; E:
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Haubner F, Muschter D, Pohl F, Schreml S, Prantl L, Gassner HG. A Co-Culture Model of Fibroblasts and Adipose Tissue-Derived Stem Cells Reveals New Insights into Impaired Wound Healing After Radiotherapy. Int J Mol Sci 2015; 16:25947-58. [PMID: 26528967 PMCID: PMC4661794 DOI: 10.3390/ijms161125935] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Revised: 09/29/2015] [Accepted: 10/20/2015] [Indexed: 12/16/2022] Open
Abstract
External radiation seems to be associated with increased amounts of cytokines and other cellular modulators. Impaired microcirculation and fibrosis are examples of typical long term damage caused by radiotherapy. Adipose tissue-derived stem cells (ASC) are discussed to enhance wound healing, but their role in wounds due to radiotherapy is poorly understood. Normal human fibroblasts (NHF) and ASCs were co-cultured and external radiation with doses from 2-12 Gray (Gy) was delivered. Cell proliferation and mRNA levels of matrix metalloproteinases (MMP1, MMP2 and MMP13) were determined 48 h after irradiation of the co-cultures by qPCR. Additionally, tissue inhibitors of matrix metalloproteinases (TIMP1, TIMP2) were determined by enzyme-linked immunosorbent assay (ELISA). There was a reduction of cell proliferation after external radiation in mono-cultures of NHFs and ASCs compared to controls without irradiation. The co-culture of ASCs and NHFs showed reduced impairment of cell proliferation after external radiation. Gene expression of MMP1 and MMP13 was reduced after external irradiation in NHF. MMP2 expression of irradiated NHFs was increased. In the co-culture setting, MMP1 and MMP2 gene expression levels were upregulated. TIMP1 and TIMP2 protein expression was increased after irradiation in NHFs and their co-cultures with ASCs. ASCs seem to stimulate cell proliferation of NHFs and modulate relevant soluble mediators as well as proteinases after external radiation.
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Affiliation(s)
- Frank Haubner
- Department of Otorhinolaryngology, Division of Facial Plastic Surgery, University Medical Center, Regensburg 93053, Germany.
| | - Dominique Muschter
- Department of Otorhinolaryngology, Division of Facial Plastic Surgery, University Medical Center, Regensburg 93053, Germany.
| | - Fabian Pohl
- Department of Radiotherapy, University Medical Center, Regensburg 93053, Germany.
| | - Stephan Schreml
- Department of Dermatology, University Medical Center, Regensburg 93053, Germany.
| | - Lukas Prantl
- Department of Plastic and Reconstructive Surgery, University Medical Center, Regensburg 93053, Germany.
| | - Holger G Gassner
- Department of Otorhinolaryngology, Division of Facial Plastic Surgery, University Medical Center, Regensburg 93053, Germany.
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Almquist BD, Castleberry SA, Sun JB, Lu AY, Hammond PT. Combination Growth Factor Therapy via Electrostatically Assembled Wound Dressings Improves Diabetic Ulcer Healing In Vivo. Adv Healthc Mater 2015; 4:2090-2099. [PMID: 26270898 PMCID: PMC4752932 DOI: 10.1002/adhm.201500403] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2015] [Revised: 07/14/2015] [Indexed: 12/26/2022]
Abstract
Chronic skin ulcerations are a common complication of diabetes mellitus, affecting up to one in four diabetic individuals. Despite the prevalence of these wounds, current pharmacologic options for treating them remain limited. Growth factor-based therapies have displayed a mixed ability to drive successful healing, which may be due to nonoptimal delivery strategies. Here, a method for coating commercially available nylon dressings using the layer-by-layer process is described to enable both sustained release and independent control over the release kinetics of vascular endothelial growth factor 165 and platelet-derived growth factor BB. It is shown that the use of strategically spaced diffusion barriers formed spontaneously by disulfide bonds enables independent control over the release rates of incorporated growth factors, and that in vivo these dressings improve several aspects of wound healing in db/db mice.
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Affiliation(s)
- Benjamin D Almquist
- Department of Bioengineering, Imperial College London, London, SW7 2AZ, UK
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Steven A Castleberry
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Julia B Sun
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Alice Y Lu
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Paula T Hammond
- Koch Institute for Integrative Cancer Research, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Institute for Soldier Nanotechnologies, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
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Ghasemi B, Tabaie SM, Azizjalali M, Berenjiardestani H, Fereshtenejad SM, Amirizadeh N, Fateh M. Injection of Autologous Fat Alone and in Combination With Autologous Platelet Gel for Nasolabial Fold Augmentation. ACTA ACUST UNITED AC 2015. [DOI: 10.17795/jssc35681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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136
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Rezazade Bazaz M, Mashreghi M, Mahdavi Shahri N, Mashreghi M, Asoodeh A, Behnam Rassouli M. Evaluation of Antimicrobial and Healing Activities of Frog Skin on Guinea Pigs Wounds. Jundishapur J Microbiol 2015; 8:e21218. [PMID: 26468364 PMCID: PMC4600859 DOI: 10.5812/jjm.21218v2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Revised: 08/16/2014] [Accepted: 08/29/2014] [Indexed: 11/16/2022] Open
Abstract
Background: Frog skin secretions have potentials against a wide spectrum of bacteria. Also, frog skin compositions have healing properties. Objectives: The aim of this study was to investigate the antibacterial potentials along with healing properties of frog skin Rana ridibunda, a species which thoroughly lives in Iran marshes, as a biological dressing on wounds. Materials and Methods: In this study, excisional wounds, dressed with frog skin, were compared between experimental and control groups of guinea pigs. In the experimental groups, wounds were dressed with the dermal (FS) and epidermal (RFS) sides of fresh frog R. ridibunda skin, while only usual cotton gauze covered the wounds of the control group. Furthermore, microbial samples were taken on different days (0, 3, 5, and 7 days post injury) to count the number of the colony-forming units. Additionally, the microbial penetration test was performed on frog skin and then the progression of wound closure was evaluated. Results: In the microbial studies, the bacterial load considerably declined in the wounds treated with FS and RFS compared with the control wounds. On day 7 post injury, the numbers of the colony-forming units for the FS, RFS, and control groups were 6.75, 105, and 375, respectively. In the penetration test, fresh frog skin showed to be a bacterial resistant dressing. The results revealed that the rate of wound closure in the experimental groups significantly was accelerated in comparison with that in the control group. Conclusions: Our results demonstrated the antimicrobial properties of frog skin as a wound dressing, which has antimicrobial effects per se. This biological dressing shows promise as an effective biological wound dressing insofar as not only is it capable of resisting microbes and accelerating wound healing but also it is cost-effective and easy to use.
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Affiliation(s)
- Mahere Rezazade Bazaz
- Department of Biology, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, IR Iran
| | - Mohammad Mashreghi
- Nanotechnology Research Center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, IR Iran
| | - Nasser Mahdavi Shahri
- Department of Biology, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, IR Iran
| | - Mansour Mashreghi
- Department of Biology, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, IR Iran
- Corresponding author: Mansour Mashreghi, Department of Biology, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, IR Iran. Tel: +98-5138805513, Fax: +98-5138762227, E-mail:
| | - Ahmad Asoodeh
- Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, IR Iran
| | - Morteza Behnam Rassouli
- Department of Biology, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, IR Iran
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Schiraldi C, Zappavigna S, D' Agostino A, Porto S, Gaito O, Lusa S, Lamberti M, De Rosa M, De Rosa G, Caraglia M. Nanoparticles for the delivery of zoledronic acid to prostate cancer cells: a comparative analysis through time lapse video-microscopy technique. Cancer Biol Ther 2015; 15:1524-32. [PMID: 25482949 DOI: 10.4161/15384047.2014.955989] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Time-lapse live cell imaging is a powerful tool for studying the responses of cells to drugs. Zoledronic acid (ZOL) is the most potent aminobiphosphonate able to induce cell growth inhibition at very low concentrations. The lack of clear evidence of ZOL-induced anti-cancer effects is likely due to its unfavorable pharmacokinetic profile. The use of nanotechnology-based formulations allows overcoming these limitations in ZOL pharmaco-distribution. Recently, stealth liposomes (LIPOs) and new self-assembly PEGylated nanoparticles (NPs) encapsulating ZOL were developed. Both the delivery systems showed promising anticancer activity in vitro and in vivo. In this work, we investigated the cytostatic effect of these novel formulations (LIPOs and NPs) compared with free ZOL on 2 different prostate cancer cell lines, PC 3 and DU 145 and on prostate epithelial primary cells EPN using time lapse video-microscopy (TLVM). In PC3 cells, free ZOL showed a significant anti-proliferative effect but this effect was lower than that induced by LIPOs and NPs encapsulating ZOL; moreover, LIPO-ZOL was more potent in inducing growth inhibition than NP-ZOL. On the other hand, LIPO-ZOL slightly enhanced the free ZOL activity on growth inhibition of DU 145, while the anti-proliferative effect of NP-ZOL was not statistically relevant. These novel formulations did not induce anti-proliferative effects on EPN cells. Finally, we evaluated cytotoxic effects on DU145 where, LIPO-ZOL induced the highest cytotoxicity compared with NP-ZOL and free ZOL. In conclusion, ZOL can be transformed in a powerful anticancer agent, if administered with nanotechnology-based formulations without damaging the healthy tissues.
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Key Words
- CaP, calcium/phosphate
- FPPS, farnesyl pirophosphate synthase
- LIPO-ZOL, stealth liposomes encapsulating ZOL
- LIPOs, stealth liposomes
- NBPs, bisphosphonates
- NPs, nanoparticles
- TAM, tumor associated macrophages
- TLVM, time lapse videomicroscopy
- ZOL, zoledronic acid
- blankLIPOs, empty pegylated liposomes
- cell biology
- cell toxicity
- drug delivery
- motility
- nanotechnology
- nanotoxicology
- prostate cancer
- self-assembly PEGylated nanoparticles
- stealth liposomes
- time lapse video-microscopy
- zoledronic acid
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Affiliation(s)
- Chiara Schiraldi
- a Department of Experimental Medicine; Section of Biotechnology, Medical Histology and Molecular Biology ; CGA Second University of Naples ; Naples , Italy
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138
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D'Agostino A, Stellavato A, Busico T, Papa A, Tirino V, Papaccio G, La Gatta A, De Rosa M, Schiraldi C. In vitro analysis of the effects on wound healing of high- and low-molecular weight chains of hyaluronan and their hybrid H-HA/L-HA complexes. BMC Cell Biol 2015; 16:19. [PMID: 26163378 PMCID: PMC4499215 DOI: 10.1186/s12860-015-0064-6] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2014] [Accepted: 05/27/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Recent studies have reported the roles of Hyaluronic acid (HA) chains of diverse length in wound repair, especially considering the simultaneous occurrence in vivo of both high- (H-HA) and low-molecular weight (L-HA) hyaluronan at an injury site. It has been shown that HA fragments (5 ≤ MW ≤ 20 kDa) usually trigger an inflammatory response that, on one hand, is the first signal in the activation of a repair mechanism but on the other, when it's overexpressed, it may promote unwanted side effects. The present experimental research has aimed to investigate H-HA, L-HA and of a newly developed complex of the two (H-HA/L-HA) for stability (e.g. hyaluronidases digestion), for their ability to promote wound healing of human keratinocytes in vitro and for their effect on cellular biomarker expression trends. RESULTS Time-lapse video microscopy studies proved that the diverse HA was capable of restoring the monolayer integrity of HaCat. The H-HA/L-HA complex (0.1 and 1%w/v) proved faster in regeneration also in co-culture scratch test where wound closure was achieved in half the time of H-HA stimulated cells and 2.5-fold faster than the control. Gene expression was evaluated for transformation growth factor beta 1 (TGF-β1) proving that L-HA alone increased its expression at 4 h followed by restoration of similar trends for all the stimuli. Depending on the diverse stimulation (H-HA, L-HA or the complex), metalloproteinases (MMP-2, -9, -13) were also modulated differently. Furthermore, type I collagen expression and production were evaluated. Compared to the others, persistence of a significant higher expression level at 24 h for the H-HA/L-HA complex was found. CONCLUSIONS The outcomes of this research showed that, both at high and low concentrations, hybrid complexes proved to perform better than HA alone thus suggesting their potential as medical devices in aesthetic and regenerative medicine.
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Affiliation(s)
- Antonella D'Agostino
- Department of Experimental Medicine, Section of Biotechnology, Medical Histology and Molecular Biology "A. Cascino", Second University of Naples, Via De Crecchio 7, 80138, Naples, Italy.
| | - Antonietta Stellavato
- Department of Experimental Medicine, Section of Biotechnology, Medical Histology and Molecular Biology "A. Cascino", Second University of Naples, Via De Crecchio 7, 80138, Naples, Italy.
| | - Teresa Busico
- Department of Experimental Medicine, Section of Biotechnology, Medical Histology and Molecular Biology "A. Cascino", Second University of Naples, Via De Crecchio 7, 80138, Naples, Italy. .,ALFATESTLAB s.r.l, Via Pelizza da Volpedo,, 59 20092, Cinisello Balsamo, MI, Italy.
| | - Agata Papa
- Department of Experimental Medicine, Section of Biotechnology, Medical Histology and Molecular Biology "A. Cascino", Second University of Naples, Via De Crecchio 7, 80138, Naples, Italy. .,ALFATESTLAB s.r.l, Via Pelizza da Volpedo,, 59 20092, Cinisello Balsamo, MI, Italy.
| | - Virginia Tirino
- Department of Experimental Medicine, Section of Biotechnology, Medical Histology and Molecular Biology "A. Cascino", Second University of Naples, Via De Crecchio 7, 80138, Naples, Italy.
| | - Gianpaolo Papaccio
- Department of Experimental Medicine, Section of Biotechnology, Medical Histology and Molecular Biology "A. Cascino", Second University of Naples, Via De Crecchio 7, 80138, Naples, Italy.
| | - Annalisa La Gatta
- Department of Experimental Medicine, Section of Biotechnology, Medical Histology and Molecular Biology "A. Cascino", Second University of Naples, Via De Crecchio 7, 80138, Naples, Italy.
| | - Mario De Rosa
- Department of Experimental Medicine, Section of Biotechnology, Medical Histology and Molecular Biology "A. Cascino", Second University of Naples, Via De Crecchio 7, 80138, Naples, Italy.
| | - Chiara Schiraldi
- Department of Experimental Medicine, Section of Biotechnology, Medical Histology and Molecular Biology "A. Cascino", Second University of Naples, Via De Crecchio 7, 80138, Naples, Italy.
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139
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Shabbir A, Cox A, Rodriguez-Menocal L, Salgado M, Van Badiavas E. Mesenchymal Stem Cell Exosomes Induce Proliferation and Migration of Normal and Chronic Wound Fibroblasts, and Enhance Angiogenesis In Vitro. Stem Cells Dev 2015; 24:1635-47. [PMID: 25867197 DOI: 10.1089/scd.2014.0316] [Citation(s) in RCA: 443] [Impact Index Per Article: 49.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Although chronic wounds are common and continue to be a major cause of morbidity and mortality, treatments for these conditions are lacking and often ineffective. A large body of evidence exists demonstrating the therapeutic potential of mesenchymal stem cells (MSCs) for repair and regeneration of damaged tissue, including acceleration of cutaneous wound healing. However, the exact mechanisms of wound healing mediated by MSCs are unclear. In this study, we examined the role of MSC exosomes in wound healing. We found that MSC exosomes ranged from 30 to 100-nm in diameter and internalization of MSC exosomes resulted in a dose-dependent enhancement of proliferation and migration of fibroblasts derived from normal donors and chronic wound patients. Uptake of MSC exosomes by human umbilical vein endothelial cells also resulted in dose-dependent increases of tube formation by endothelial cells. MSC exosomes were found to activate several signaling pathways important in wound healing (Akt, ERK, and STAT3) and induce the expression of a number of growth factors [hepatocyte growth factor (HGF), insulin-like growth factor-1 (IGF1), nerve growth factor (NGF), and stromal-derived growth factor-1 (SDF1)]. These findings represent a promising opportunity to gain insight into how MSCs may mediate wound healing.
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Affiliation(s)
- Arsalan Shabbir
- Department of Dermatology and Cutaneous Surgery, Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine , Miami, Florida
| | - Audrey Cox
- Department of Dermatology and Cutaneous Surgery, Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine , Miami, Florida
| | - Luis Rodriguez-Menocal
- Department of Dermatology and Cutaneous Surgery, Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine , Miami, Florida
| | - Marcela Salgado
- Department of Dermatology and Cutaneous Surgery, Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine , Miami, Florida
| | - Evangelos Van Badiavas
- Department of Dermatology and Cutaneous Surgery, Interdisciplinary Stem Cell Institute, University of Miami Miller School of Medicine , Miami, Florida
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140
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Wang J, Xu M, Liang R, Zhao M, Zhang Z, Li Y. Oral administration of marine collagen peptides prepared from chum salmon (Oncorhynchus keta) improves wound healing following cesarean section in rats. Food Nutr Res 2015; 59:26411. [PMID: 25976613 PMCID: PMC4432022 DOI: 10.3402/fnr.v59.26411] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2014] [Revised: 04/14/2015] [Accepted: 04/14/2015] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND The goal of the present study was to investigate the wound-healing potential of marine collagen peptides (MCPs) from chum salmon skin administered to rats following cesarean section (CS). METHODS Ninety-six pregnant Sprague-Dawley rats were randomly divided into four groups: a vehicle group and three MCP groups. After CS, rats were intragastrically given MCPs at doses of 0, 0.13, 0.38, 1.15 g/kg*bw, respectively. On postoperative days 7, 14, and 21, the uterine bursting pressure, skin tensile strength, hydroxyproline (Hyp) concentrations, and histological and immunohistochemical characteristics of the scar tissue were examined. RESULTS In the MCP groups, the skin tensile strength, uterine bursting pressure, and Hyp were significantly higher than those in the vehicle group at all three time points (p<0.05). The formation of capillary, fibroblast, and collagen fiber, the expression of platelet-endothelial cell adhesion molecule-1, basic fibroblast growth factor, and transforming growth factor beta-1 were increased in the MCP groups (p<0.05). CONCLUSION MCPs could accelerate the process of wounding healing in rats after CS.
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Affiliation(s)
- Junbo Wang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing, China
| | - Meihong Xu
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing, China
| | - Rui Liang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing, China
| | - Ming Zhao
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing, China
| | - Zhaofeng Zhang
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing, China
| | - Yong Li
- Department of Nutrition and Food Hygiene, School of Public Health, Peking University, Beijing, China
- Beijing Key Laboratory of Toxicological Research and Risk Assessment for Food Safety, Peking University, Beijing, China;
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141
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Santos JM, Camões SP, Filipe E, Cipriano M, Barcia RN, Filipe M, Teixeira M, Simões S, Gaspar M, Mosqueira D, Nascimento DS, Pinto-do-Ó P, Cruz P, Cruz H, Castro M, Miranda JP. Three-dimensional spheroid cell culture of umbilical cord tissue-derived mesenchymal stromal cells leads to enhanced paracrine induction of wound healing. Stem Cell Res Ther 2015; 6:90. [PMID: 25956381 PMCID: PMC4448539 DOI: 10.1186/s13287-015-0082-5] [Citation(s) in RCA: 120] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2015] [Revised: 01/19/2015] [Accepted: 04/21/2015] [Indexed: 12/20/2022] Open
Abstract
Introduction The secretion of trophic factors by mesenchymal stromal cells has gained increased interest given the benefits it may bring to the treatment of a variety of traumatic injuries such as skin wounds. Herein, we report on a three-dimensional culture-based method to improve the paracrine activity of a specific population of umbilical cord tissue-derived mesenchymal stromal cells (UCX®) towards the application of conditioned medium for the treatment of cutaneous wounds. Methods A UCX® three-dimensional culture model was developed and characterized with respect to spheroid formation, cell phenotype and cell viability. The secretion by UCX® spheroids of extracellular matrix proteins and trophic factors involved in the wound-healing process was analysed. The skin regenerative potential of UCX® three-dimensional culture-derived conditioned medium (CM3D) was also assessed in vitro and in vivo against UCX® two-dimensional culture-derived conditioned medium (CM2D) using scratch and tubulogenesis assays and a rat wound splinting model, respectively. Results UCX® spheroids kept in our three-dimensional system remained viable and multipotent and secreted considerable amounts of vascular endothelial growth factor A, which was undetected in two-dimensional cultures, and higher amounts of matrix metalloproteinase-2, matrix metalloproteinase-9, hepatocyte growth factor, transforming growth factor β1, granulocyte-colony stimulating factor, fibroblast growth factor 2 and interleukin-6, when compared to CM2D. Furthermore, CM3D significantly enhanced elastin production and migration of keratinocytes and fibroblasts in vitro. In turn, tubulogenesis assays revealed increased capillary maturation in the presence of CM3D, as seen by a significant increase in capillary thickness and length when compared to CM2D, and increased branching points and capillary number when compared to basal medium. Finally, CM3D-treated wounds presented signs of faster and better resolution when compared to untreated and CM2D-treated wounds in vivo. Although CM2D proved to be beneficial, CM3D-treated wounds revealed a completely regenerated tissue by day 14 after excisions, with a more mature vascular system already showing glands and hair follicles. Conclusions This work unravels an important alternative to the use of cells in the final formulation of advanced therapy medicinal products by providing a proof of concept that a reproducible system for the production of UCX®-conditioned medium can be used to prime a secretome for eventual clinical applications. Electronic supplementary material The online version of this article (doi:10.1186/s13287-015-0082-5) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jorge M Santos
- ECBio - Investigação e Desenvolvimento em Biotecnologia S.A., Rua Henrique Paiva Couceiro, N° 27, 2700-451, Amadora, Portugal.
| | - Sérgio P Camões
- iMed.ULisboa - Research Institute for Medicines, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
| | - Elysse Filipe
- iMed.ULisboa - Research Institute for Medicines, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
| | - Madalena Cipriano
- iMed.ULisboa - Research Institute for Medicines, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
| | - Rita N Barcia
- ECBio - Investigação e Desenvolvimento em Biotecnologia S.A., Rua Henrique Paiva Couceiro, N° 27, 2700-451, Amadora, Portugal.
| | - Mariana Filipe
- ECBio - Investigação e Desenvolvimento em Biotecnologia S.A., Rua Henrique Paiva Couceiro, N° 27, 2700-451, Amadora, Portugal.
| | - Mariana Teixeira
- ECBio - Investigação e Desenvolvimento em Biotecnologia S.A., Rua Henrique Paiva Couceiro, N° 27, 2700-451, Amadora, Portugal.
| | - Sandra Simões
- iMed.ULisboa - Research Institute for Medicines, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
| | - Manuela Gaspar
- iMed.ULisboa - Research Institute for Medicines, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
| | - Diogo Mosqueira
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal. .,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua do Campo Alegre, N° 823, 4150-180, Porto, Portugal.
| | - Diana S Nascimento
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal. .,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua do Campo Alegre, N° 823, 4150-180, Porto, Portugal.
| | - Perpétua Pinto-do-Ó
- I3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal. .,INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua do Campo Alegre, N° 823, 4150-180, Porto, Portugal. .,ICBAS - Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Rua de Jorge Viterbo Ferreira, N° 228, 4050-313, Porto, Portugal. .,Unit for Lymphopoiesis, Immunology Department, INSERM U668, University Paris Diderot, Sorbonne Paris Cité, Cellule Pasteur, Institut Pasteur, Paris, 75015, France.
| | - Pedro Cruz
- ECBio - Investigação e Desenvolvimento em Biotecnologia S.A., Rua Henrique Paiva Couceiro, N° 27, 2700-451, Amadora, Portugal.
| | - Helder Cruz
- ECBio - Investigação e Desenvolvimento em Biotecnologia S.A., Rua Henrique Paiva Couceiro, N° 27, 2700-451, Amadora, Portugal.
| | - Matilde Castro
- iMed.ULisboa - Research Institute for Medicines, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
| | - Joana P Miranda
- iMed.ULisboa - Research Institute for Medicines, Faculty of Pharmacy, Universidade de Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
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142
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Leal EC, Carvalho E, Tellechea A, Kafanas A, Tecilazich F, Kearney C, Kuchibhotla S, Auster ME, Kokkotou E, Mooney DJ, LoGerfo FW, Pradhan-Nabzdyk L, Veves A. Substance P promotes wound healing in diabetes by modulating inflammation and macrophage phenotype. THE AMERICAN JOURNAL OF PATHOLOGY 2015; 185:1638-48. [PMID: 25871534 DOI: 10.1016/j.ajpath.2015.02.011] [Citation(s) in RCA: 140] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2014] [Revised: 02/04/2015] [Accepted: 02/24/2015] [Indexed: 12/26/2022]
Abstract
Diabetic foot ulceration is a major complication of diabetes. Substance P (SP) is involved in wound healing, but its effect in diabetic skin wounds is unclear. We examined the effect of exogenous SP delivery on diabetic mouse and rabbit wounds. We also studied the impact of deficiency in SP or its receptor, neurokinin-1 receptor, on wound healing in mouse models. SP treatment improved wound healing in mice and rabbits, whereas the absence of SP or its receptor impaired wound progression in mice. Moreover, SP bioavailability in diabetic skin was reduced as SP gene expression was decreased, whereas the gene expression and protein levels of the enzyme that degrades SP, neutral endopeptidase, were increased. Diabetes and SP deficiency were associated with absence of an acute inflammatory response important for wound healing progression and instead revealed a persistent inflammation throughout the healing process. SP treatment induced an acute inflammatory response, which enabled the progression to the proliferative phase and modulated macrophage activation toward the M2 phenotype that promotes wound healing. In conclusion, SP treatment reverses the chronic proinflammatory state in diabetic skin and promotes healing of diabetic wounds.
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Affiliation(s)
- Ermelindo C Leal
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts; Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Eugénia Carvalho
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts; Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Ana Tellechea
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts; Center for Neuroscience and Cell Biology, University of Coimbra, Coimbra, Portugal
| | - Antonios Kafanas
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Francesco Tecilazich
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Cathal Kearney
- Harvard School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts; Department of Anatomy, Royal College of Surgeon's in Ireland, Dublin, Ireland
| | - Sarada Kuchibhotla
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Michael E Auster
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Efi Kokkotou
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - David J Mooney
- Harvard School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts; Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, Massachusetts
| | - Frank W LoGerfo
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | | | - Aristidis Veves
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts.
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143
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Goertz O, Lauer H, Hirsch T, Daigeler A, Harati K, Stricker I, Lehnhardt M, von der Lohe L. Evaluation of angiogenesis, epithelialisation and microcirculation after application of polyhexanide, chitosan and sodium chloride in rodents. Int Wound J 2015; 13:1161-1167. [PMID: 25756458 DOI: 10.1111/iwj.12434] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2014] [Revised: 01/23/2015] [Accepted: 02/02/2015] [Indexed: 11/30/2022] Open
Abstract
The purpose of this study was to investigate the effect of polyhexanide and a new developed chitin-based wound dressing on skin microcirculation, epithelialisation and angiogenesis. A full-thickness dermal layer extending to the underlying cartilage was excised on the dorsal side of hairless mice (n = 27; 2·3 ± 0·3 mm2 ). A polyhexanide ointment, a chitosan solution and a sodium chloride group as control were analysed using intravital fluorescence microscopy. Angiogenesis, epithelialisation and microcirculatory standard parameters were measured over a time period of 20 days. The non-perfused area is regarded as a parameter for angiogenesis and showed the following results: on days 12, 16 and 20, the sodium chloride group was significantly superior to chitosan solution (P < 0·05) and, on days 8, 12, 16 and 20, the polyhexanide group was superior to chitosan solution (P < 0·05). The epithelialisation was measured significantly faster in the polyhexanide and control group on day 8 versus chitosan solution. Whereas polyhexanide and sodium chloride were nearly completely epithelialised, treatment with chitosan solution showed still an open wound of 11% of the initial wound size. Altogether, we could demonstrate the advantageous effects of a polyhexanide ointment on microcirculation, angiogenesis and epithelialisation. Chitosan solution appears to inhibit angiogenesis and delays epithelialisation. Further studies in different models would be worthwhile to confirm these results.
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Affiliation(s)
- Ole Goertz
- Department of Plastic and Hand Surgery, Burn Center, BG-University Hospital Bergmannsheil, Ruhr-University Bochum, Bochum, Germany
| | - Henrik Lauer
- Department of Plastic and Hand Surgery, Burn Center, BG-University Hospital Bergmannsheil, Ruhr-University Bochum, Bochum, Germany
| | - Tobias Hirsch
- Department of Plastic and Hand Surgery, Burn Center, BG-University Hospital Bergmannsheil, Ruhr-University Bochum, Bochum, Germany
| | - Adrien Daigeler
- Department of Plastic and Hand Surgery, Burn Center, BG-University Hospital Bergmannsheil, Ruhr-University Bochum, Bochum, Germany
| | - Kamran Harati
- Department of Plastic and Hand Surgery, Burn Center, BG-University Hospital Bergmannsheil, Ruhr-University Bochum, Bochum, Germany
| | - Ingo Stricker
- Institute of Pathology, Ruhr-University Bochum, Bochum, Germany
| | - Marcus Lehnhardt
- Department of Plastic and Hand Surgery, Burn Center, BG-University Hospital Bergmannsheil, Ruhr-University Bochum, Bochum, Germany
| | - Leon von der Lohe
- Department of Plastic and Hand Surgery, Burn Center, BG-University Hospital Bergmannsheil, Ruhr-University Bochum, Bochum, Germany
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Glasbey JC, Sanders AJ, Bosanquet DC, Ruge F, Harding KG, Jiang WG. Expression of Hepatocyte Growth Factor-Like Protein in Human Wound Tissue and Its Biological Functionality in Human Keratinocytes. Biomedicines 2015; 3:110-123. [PMID: 28536402 PMCID: PMC5344237 DOI: 10.3390/biomedicines3010110] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2014] [Revised: 09/29/2014] [Accepted: 01/27/2015] [Indexed: 01/04/2023] Open
Abstract
human keratinocyte model, may indicate a role for HGFl in active wound healing.
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Affiliation(s)
- James C Glasbey
- Cardiff China Medical Research Collaborative (CCMRC), Cardiff University-Peking University Cancer Institute, Cardiff University-Capital Medical University Joint Centre Biomedical Research, Cardiff University School of Medicine, Henry Wellcome Building, Heath Park, Cardiff CF14 4XN, UK.
- Department of Wound Healing and Welsh Wound Innovation Centre, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK.
| | - Andrew J Sanders
- Cardiff China Medical Research Collaborative (CCMRC), Cardiff University-Peking University Cancer Institute, Cardiff University-Capital Medical University Joint Centre Biomedical Research, Cardiff University School of Medicine, Henry Wellcome Building, Heath Park, Cardiff CF14 4XN, UK.
| | - David C Bosanquet
- Cardiff China Medical Research Collaborative (CCMRC), Cardiff University-Peking University Cancer Institute, Cardiff University-Capital Medical University Joint Centre Biomedical Research, Cardiff University School of Medicine, Henry Wellcome Building, Heath Park, Cardiff CF14 4XN, UK.
- Department of Wound Healing and Welsh Wound Innovation Centre, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK.
| | - Fiona Ruge
- Cardiff China Medical Research Collaborative (CCMRC), Cardiff University-Peking University Cancer Institute, Cardiff University-Capital Medical University Joint Centre Biomedical Research, Cardiff University School of Medicine, Henry Wellcome Building, Heath Park, Cardiff CF14 4XN, UK.
- Department of Wound Healing and Welsh Wound Innovation Centre, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK.
| | - Keith G Harding
- Department of Wound Healing and Welsh Wound Innovation Centre, Cardiff University School of Medicine, Heath Park, Cardiff CF14 4XN, UK.
| | - Wen G Jiang
- Cardiff China Medical Research Collaborative (CCMRC), Cardiff University-Peking University Cancer Institute, Cardiff University-Capital Medical University Joint Centre Biomedical Research, Cardiff University School of Medicine, Henry Wellcome Building, Heath Park, Cardiff CF14 4XN, UK.
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145
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O'Loughlin A, Kulkarni M, Vaughan EE, Creane M, Liew A, Dockery P, Pandit A, O'Brien T. Autologous circulating angiogenic cells treated with osteopontin and delivered via a collagen scaffold enhance wound healing in the alloxan-induced diabetic rabbit ear ulcer model. Stem Cell Res Ther 2014; 4:158. [PMID: 24444259 PMCID: PMC4054999 DOI: 10.1186/scrt388] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2013] [Revised: 05/24/2013] [Accepted: 12/02/2013] [Indexed: 12/26/2022] Open
Abstract
INTRODUCTION Diabetic foot ulceration is the leading cause of amputation in people with diabetes mellitus. Peripheral vascular disease is present in the majority of patients with diabetic foot ulcers. Despite standard treatments there exists a high amputation rate. Circulating angiogenic cells previously known as early endothelial progenitor cells are derived from peripheral blood and support angiogenesis and vasculogenesis, providing a potential topical treatment for non-healing diabetic foot ulcers. METHODS A scaffold fabricated from Type 1 collagen facilitates topical cell delivery to a diabetic wound. Osteopontin is a matricellular protein involved in wound healing and increases the angiogenic potential of circulating angiogenic cells. A collagen scaffold seeded with circulating angiogenic cells was developed. Subsequently the effect of autologous circulating angiogenic cells that were seeded in a collagen scaffold and topically delivered to a hyperglycemic cutaneous wound was assessed. The alloxan-induced diabetic rabbit ear ulcer model was used to determine healing in response to the following treatments: collagen seeded with autologous circulating angiogenic cells exposed to osteopontin, collagen seeded with autologous circulating angiogenic cells, collagen alone and untreated wound. Stereology was used to assess angiogenesis in wounds. RESULTS The cells exposed to osteopontin and seeded on collagen increased percentage wound closure as compared to other groups. Increased angiogenesis was observed with the treatment of collagen and collagen seeded with circulating angiogenic cells. CONCLUSIONS These results demonstrate that topical treatment of full thickness cutaneous ulcers with autologous circulating angiogenic cells increases wound healing. Cells exposed to the matricellular protein osteopontin result in superior wound healing. The wound healing benefit is associated with a more efficient vascular network. This topical therapy provides a potential novel therapy for the treatment of non-healing diabetic foot ulcers in humans.
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146
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Park JY, Lee J, Jeong M, Min S, Kim SY, Lee H, Lim Y, Park HJ. Effect of Hominis Placenta on cutaneous wound healing in normal and diabetic mice. Nutr Res Pract 2014; 8:404-9. [PMID: 25110560 PMCID: PMC4122712 DOI: 10.4162/nrp.2014.8.4.404] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2013] [Revised: 01/16/2014] [Accepted: 01/25/2014] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND/OBJECTIVES The number of diabetic patients has recently shown a rapid increase, and delayed wound healing is a major clinical complication in diabetes. In this study, the wound healing effect of Hominis placenta (HP) treatment was investigated in normal and streptozotocin-induced diabetic mice. MATERIALS/METHODS Four full thickness wounds were created using a 4 mm biopsy punch on the dorsum. HP was injected subcutaneously at the middle region of the upper and lower wounds. Wounds were digitally photographed and wound size was measured every other day until the 14th day. Wound closure rate was analyzed using CANVAS 7SE software. Wound tissues were collected on days 2, 6, and 14 after wounding for H/E, immunohistochemistry for FGF2, and Masson's trichrome staining for collagen study. RESULTS Significantly faster wound closure rates were observed in the HP treated group than in normal and diabetes control mice on days 6 and 8. Treatment with HP resulted in reduced localization of inflammatory cells in wounded skin at day 6 in normal mice and at day 14 in diabetic mice (P < 0.01). Expression of fibroblast growth factor (FGF) 2 showed a significant increase in the HP treated group on day 14 in both normal (P < 0.01) and diabetic mice (P < 0.05). In addition, HP treated groups showed a thicker collagen layer than no treatment groups, which was remarkable on the last day, day 14, in both normal and diabetic mice. CONCLUSIONS Taken together, HP treatment has a beneficial effect on acceleration of cutaneous wound healing via regulation of the entire wound healing process, including inflammation, proliferation, and remodeling.
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Affiliation(s)
- Ji-Yeun Park
- Studies of Translational Acupuncture Research, Acupuncture and Meridian Science Research Center, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Korea. ; Department of Korean Medical Science, Graduate School of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Korea
| | - Jiyoung Lee
- Studies of Translational Acupuncture Research, Acupuncture and Meridian Science Research Center, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Korea
| | - Minsu Jeong
- Happy Kyung Hee Korean Medicine Clinic, Banrim-dong, Sungsan-gu, Changwon, Kyungbuk 642-180, Korea
| | - Seorim Min
- Studies of Translational Acupuncture Research, Acupuncture and Meridian Science Research Center, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Korea. ; Department of Korean Medical Science, Graduate School of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Korea
| | - Song-Yi Kim
- Studies of Translational Acupuncture Research, Acupuncture and Meridian Science Research Center, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Korea
| | - Hyejung Lee
- Studies of Translational Acupuncture Research, Acupuncture and Meridian Science Research Center, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Korea. ; Department of Korean Medical Science, Graduate School of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Korea
| | - Yunsook Lim
- Department of Food and Nutrition, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Korea
| | - Hi-Joon Park
- Studies of Translational Acupuncture Research, Acupuncture and Meridian Science Research Center, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Korea. ; Department of Korean Medical Science, Graduate School of Korean Medicine, Kyung Hee University, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 130-701, Korea
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147
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Liu M, Saeki K, Matsunobu T, Okuno T, Koga T, Sugimoto Y, Yokoyama C, Nakamizo S, Kabashima K, Narumiya S, Shimizu T, Yokomizo T. 12-Hydroxyheptadecatrienoic acid promotes epidermal wound healing by accelerating keratinocyte migration via the BLT2 receptor. ACTA ACUST UNITED AC 2014; 211:1063-78. [PMID: 24821912 PMCID: PMC4042643 DOI: 10.1084/jem.20132063] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Endogenous 12-HHT, or a synthetic BLT2 agonist promotes epidermal wound closure by stimulating BLT2 on keratinocytes, inducing TNF and MMP production. Leukotriene B4 (LTB4) receptor type 2 (BLT2) is a G protein–coupled receptor (GPCR) for 12(S)-hydroxyheptadeca-5Z,8E,10E-trienoic acid (12-HHT) and LTB4. Despite the well-defined proinflammatory roles of BLT1, the in vivo functions of BLT2 remain elusive. As mouse BLT2 is highly expressed in epidermal keratinocytes, we investigated the role of the 12-HHT/BLT2 axis in skin wound healing processes. 12-HHT accumulated in the wound fluid in mice, and BLT2-deficient mice exhibited impaired re-epithelialization and delayed wound closure after skin punching. Aspirin administration reduced 12-HHT production and resulted in delayed wound closure in wild-type mice, which was abrogated in BLT2-deficient mice. In vitro scratch assay using primary keratinocytes and a keratinocyte cell line also showed that the 12-HHT/BLT2 axis accelerated wound closure through the production of tumor necrosis factor α (TNF) and matrix metalloproteinases (MMPs). A synthetic BLT2 agonist accelerated wound closure in cultured cells as well as in C57BL/6J and diabetic mice. These results identify a novel mechanism underlying the action of the 12-HHT/BLT2 axis in epidermal keratinocytes and accordingly suggest the use of BLT2 agonists as therapeutic agents to accelerate wound healing, particularly for intractable wounds, such as diabetic ulcers.
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Affiliation(s)
- Min Liu
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo 113-8421, Japan Department of Medical Biochemistry, Kyushu University, Fukuoka 812-8582, Japan
| | - Kazuko Saeki
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo 113-8421, Japan Department of Medical Biochemistry, Kyushu University, Fukuoka 812-8582, Japan
| | - Takehiko Matsunobu
- Department of Medical Biochemistry, Kyushu University, Fukuoka 812-8582, Japan
| | - Toshiaki Okuno
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo 113-8421, Japan Department of Medical Biochemistry, Kyushu University, Fukuoka 812-8582, Japan
| | - Tomoaki Koga
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo 113-8421, Japan Department of Medical Biochemistry, Kyushu University, Fukuoka 812-8582, Japan
| | - Yukihiko Sugimoto
- Department of Pharmaceutical Biochemistry, Kumamoto University, Kumamoto 862-0973, Japan
| | - Chieko Yokoyama
- Department of Metabolism and Atherosclerosis, Osaka University, Osaka 565-0871, Japan
| | - Satoshi Nakamizo
- Department of Dermatology and Department of Pharmacology, Kyoto University, Kyoto 606-8501, Japan
| | - Kenji Kabashima
- Department of Dermatology and Department of Pharmacology, Kyoto University, Kyoto 606-8501, Japan
| | - Shuh Narumiya
- Department of Dermatology and Department of Pharmacology, Kyoto University, Kyoto 606-8501, Japan
| | - Takao Shimizu
- Department of Lipid Signaling, National Center for Global Health and Medicine, Tokyo 162-0052, Japan
| | - Takehiko Yokomizo
- Department of Biochemistry, Juntendo University School of Medicine, Tokyo 113-8421, Japan Department of Medical Biochemistry, Kyushu University, Fukuoka 812-8582, Japan
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148
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Alkafafy M, Montaser M, El-Shazly SA, Bazid S, Ahmed MM. Ethanolic extract of sharah, Plectranthus aegyptiacus, enhances healing of skin wound in rats. Acta Histochem 2014; 116:627-38. [PMID: 24382517 DOI: 10.1016/j.acthis.2013.11.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Revised: 11/21/2013] [Accepted: 11/25/2013] [Indexed: 11/16/2022]
Abstract
Sharah, Plectranthus aegyptiacus (Forssk.) C. Chr. is a common native plant in the Taif region of Saudi Arabia. An ethanolic extract of freeze dried sharah leaves was added as 10% (w/w) to an ointment base of beeswax and sesame oil. The resultant ointment was examined as a potential enhancer of wound healing. Excision wounds in the nape region of the skin were induced in sixty albino Wistar rats. Animals were allocated in 4 groups (n=15) and kept individually in clean cages. The first group served as negative untreated controls without medication; the second group was treated with ointment base (vehicle); the third group represented the positive control and was treated with a reference ointment and the fourth one served as the experimental group and received the test plant extract (as ointment). Animal groups received the respective medications for 14 successive days. Wounds were measured and photographed every 3 days till the end of the experiment (day 21) in order to determine the wound closure rate (WCR). Specimens from wounds and surrounding skin were collected from sacrificed animals for histological and molecular studies. Both morphometric (based on WCR) and histological findings showed that the healing in animals treated with the sharah plant extract was better than those in control group or vehicle-treated group and was similar to that in the group that received the reference ointment. Moreover, the molecular findings concerning the expression levels of hepatocyte growth factor (HGF) and its receptor (c-Met) displayed a reasonable healing enhancing effect of the plant extract with the expression levels of both being higher in the extract-treated group than in the control group.
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Affiliation(s)
- Mohamed Alkafafy
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia; Department of Cytology and Histology, College of Veterinary Medicine, University of Sadat City, Egypt
| | - Metwally Montaser
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia; Department of Zoology, College of Science, Al-Azhar University, Cairo, Egypt
| | - Samir A El-Shazly
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia; Department of Biochemistry, College of Veterinary Medicine, Kafrelsheikh University, Egypt
| | - Saleh Bazid
- Department of Biology, College of Science, Taif University, Taif, Saudi Arabia
| | - Mohamed M Ahmed
- Department of Biotechnology, College of Science, Taif University, Taif, Saudi Arabia; Department of Biochemistry, College of Veterinary Medicine, University of Sadat City, Egypt.
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149
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Biggs LC, Naridze RL, DeMali KA, Lusche DF, Kuhl S, Soll DR, Schutte BC, Dunnwald M. Interferon regulatory factor 6 regulates keratinocyte migration. J Cell Sci 2014; 127:2840-8. [PMID: 24777480 DOI: 10.1242/jcs.139246] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Interferon regulatory factor 6 (Irf6) regulates keratinocyte proliferation and differentiation. In this study, we tested the hypothesis that Irf6 regulates cellular migration and adhesion. Irf6-deficient embryos at 10.5 days post-conception failed to close their wound compared with wild-type embryos. In vitro, Irf6-deficient murine embryonic keratinocytes were delayed in closing a scratch wound. Live imaging of the scratch showed deficient directional migration and reduced speed in cells lacking Irf6. To understand the underlying molecular mechanisms, cell-cell and cell-matrix adhesions were investigated. We show that wild-type and Irf6-deficient keratinocytes adhere similarly to all matrices after 60 min. However, Irf6-deficient keratinocytes were consistently larger and more spread, a phenotype that persisted during the scratch-healing process. Interestingly, Irf6-deficient keratinocytes exhibited an increased network of stress fibers and active RhoA compared with that observed in wild-type keratinocytes. Blocking ROCK, a downstream effector of RhoA, rescued the delay in closing scratch wounds. The expression of Arhgap29, a Rho GTPase-activating protein, was reduced in Irf6-deficient keratinocytes. Taken together, these data suggest that Irf6 functions through the RhoA pathway to regulate cellular migration.
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Affiliation(s)
- Leah C Biggs
- Department of Pediatrics, The University of Iowa, Iowa City, IA 52242, USA Interdisciplinary Graduate Program in Genetics, The University of Iowa, Iowa City, IA 52242, USA
| | - Rachelle L Naridze
- Department of Pediatrics, The University of Iowa, Iowa City, IA 52242, USA
| | - Kris A DeMali
- Department of Biochemistry, The University of Iowa, Iowa City, IA 52242, USA
| | - Daniel F Lusche
- Developmental Studies Hybridoma Bank, Department of Biology, The University of Iowa, Iowa City, IA 52242, USA
| | - Spencer Kuhl
- Developmental Studies Hybridoma Bank, Department of Biology, The University of Iowa, Iowa City, IA 52242, USA
| | - David R Soll
- Developmental Studies Hybridoma Bank, Department of Biology, The University of Iowa, Iowa City, IA 52242, USA
| | - Brian C Schutte
- Departments of Microbiology and Molecular Genetics and of Pediatrics and Human Development, Michigan State University, East Lansing, MI 48824, USA
| | - Martine Dunnwald
- Department of Pediatrics, The University of Iowa, Iowa City, IA 52242, USA Interdisciplinary Graduate Program in Genetics, The University of Iowa, Iowa City, IA 52242, USA
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150
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Jain R, Calderon D, Kierski PR, Schurr MJ, Czuprynski CJ, Murphy CJ, McAnulty JF, Abbott NL. Raman spectroscopy enables noninvasive biochemical characterization and identification of the stage of healing of a wound. Anal Chem 2014; 86:3764-72. [PMID: 24559115 PMCID: PMC4004186 DOI: 10.1021/ac500513t] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 02/21/2014] [Indexed: 11/29/2022]
Abstract
Accurate and rapid assessment of the healing status of a wound in a simple and noninvasive manner would enable clinicians to diagnose wounds in real time and promptly adjust treatments to hasten the resolution of nonhealing wounds. Histologic and biochemical characterization of biopsied wound tissue, which is currently the only reliable method for wound assessment, is invasive, complex to interpret, and slow. Here we demonstrate the use of Raman microspectroscopy coupled with multivariate spectral analysis as a simple, noninvasive method to biochemically characterize healing wounds in mice and to accurately identify different phases of healing of wounds at different time-points. Raman spectra were collected from "splinted" full thickness dermal wounds in mice at 4 time-points (0, 1, 5, and 7 days) corresponding to different phases of wound healing, as verified by histopathology. Spectra were deconvolved using multivariate factor analysis (MFA) into 3 "factor score spectra" (that act as spectral signatures for different stages of healing) that were successfully correlated with spectra of prominent pure wound bed constituents (i.e., collagen, lipids, fibrin, fibronectin, etc.) using non-negative least squares (NNLS) fitting. We show that the factor loadings (weights) of spectra that belonged to wounds at different time-points provide a quantitative measure of wound healing progress in terms of key parameters such as inflammation and granulation. Wounds at similar stages of healing were characterized by clusters of loading values and slowly healing wounds among them were successfully identified as "outliers". Overall, our results demonstrate that Raman spectroscopy can be used as a noninvasive technique to provide insight into the status of normally healing and slow-to-heal wounds and that it may find use as a complementary tool for real-time, in situ biochemical characterization in wound healing studies and clinical diagnosis.
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Affiliation(s)
- Rishabh Jain
- Department of Chemical
and Biological Engineering, University of
Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Diego Calderon
- Department of Surgical Sciences, School
of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Patricia R. Kierski
- Department of Surgical Sciences, School
of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Michael J. Schurr
- Department of Surgery, School of Medicine and Public Health, University of Colorado-Denver, Denver, Colorado 80217 United States
| | - Charles J. Czuprynski
- Department
of Pathobiological Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Christopher J. Murphy
- Department
of Surgical and Radiological Sciences, School of Veterinary Medicine, University of California-Davis, Davis, California 95616, United States
- Department
of Ophthalmology & Vision Science, School of Medicine, University of California-Davis, Davis, California 95616, United States
| | - Jonathan F. McAnulty
- Department of Surgical Sciences, School
of Veterinary Medicine, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Nicholas L. Abbott
- Department of Chemical
and Biological Engineering, University of
Wisconsin-Madison, Madison, Wisconsin 53706, United States
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