101
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Hadian Y, Fregoso D, Nguyen C, Bagood MD, Dahle SE, Gareau MG, Isseroff RR. Microbiome-skin-brain axis: A novel paradigm for cutaneous wounds. Wound Repair Regen 2020; 28:282-292. [PMID: 32034844 DOI: 10.1111/wrr.12800] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 01/21/2020] [Accepted: 01/24/2020] [Indexed: 12/12/2022]
Abstract
Chronic wounds cause a significant burden on society financially, medically, and psychologically. Unfortunately, patients with nonhealing wounds often suffer from comorbidities that further compound their disability. Given the high rate of depressive symptoms experienced by patients with chronic wounds, further studies are needed to investigate the potentially linked pathophysiological changes in wounds and depression in order to improve patient care. The English literature on wound healing, inflammatory and microbial changes in chronic wounds and depression, and antiinflammatory and probiotic therapy was reviewed on PubMed. Chronic wound conditions and depression were demonstrated to share common pathologic features of dysregulated inflammation and altered microbiome, indicating a possible relationship. Furthermore, alternative treatment strategies such as immune-targeted and probiotic therapy showed promising potential by addressing both pathophysiological pathways. However, many existing studies are limited to a small study population, a cross-sectional design that does not establish temporality, or a wide range of confounding variables in the context of a highly complex and multifactorial disease process. Therefore, additional preclinical studies in suitable wound models, as well as larger clinical cohort studies and trials are necessary to elucidate the relationship between wound microbiome, healing, and depression, and ultimately guide the most effective therapeutic and management plan for chronic wound patients.
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Affiliation(s)
- Yasmin Hadian
- Department of Dermatology, School of Medicine, University of California, Davis, California.,Dermatology Section, VA Northern California Health Care System, Mather, California
| | - Daniel Fregoso
- Department of Dermatology, School of Medicine, University of California, Davis, California
| | - Chuong Nguyen
- Department of Dermatology, School of Medicine, University of California, Davis, California
| | - Michelle D Bagood
- Department of Dermatology, School of Medicine, University of California, Davis, California
| | - Sara E Dahle
- Department of Dermatology, School of Medicine, University of California, Davis, California.,Podiatry Section, VA Northern California Health Care System, Mather, California
| | - Melanie G Gareau
- Department of Anatomy, Physiology and Cell Biology, School of Veterinary Medicine, University of California Davis, Davis, California
| | - Roslyn Rivkah Isseroff
- Department of Dermatology, School of Medicine, University of California, Davis, California.,Dermatology Section, VA Northern California Health Care System, Mather, California
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102
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Age-associated differences in macrophage response in a vaginal wound healing rat model. Int Urogynecol J 2020; 31:1803-1809. [PMID: 32108248 DOI: 10.1007/s00192-020-04266-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Accepted: 02/12/2020] [Indexed: 12/24/2022]
Abstract
INTRODUCTION AND HYPOTHESIS Surgical treatment of pelvic organ prolapse often includes the use of patients' vaginal connective tissue. Wound healing appears to play an important part in the success of such procedures. The aim of this study was to describe the effect of age on inflammatory processes, specifically macrophage response, involved in vaginal wound healing. METHODS Twenty-five young (12 weeks old) and 25 old (12 months old) virgin female Fischer rats underwent a standardized 9-mm posterior midline vaginal incision. Tissue samples were taken for histological analysis on days 1, 3, 7, 14 and 30 post-injury. Parameters evaluated included wound area, macrophage number and expression of inflammatory markers including tumor necrosis factor alpha (TNFa), inducible nitric oxide synthase (iNOS), CCR7/CD197, arginase I and CD163/M130. RESULTS Microscopic examination of the vaginal wounds over time demonstrated a clear difference between young and old rats in spontaneous healing capacity. The average wound area in young rats 1 day after injury was significantly smaller than in old rats (16.5 ± 1.7 vs. 23.8 ± 1.5 mm2, P < 0.05). At 3 days post-injury, wounds were closed in young rats but still open in old rats (wound area: 13.5 ± 1.5 mm2). Old rats demonstrated a more excessive and sustained macrophage response compared with young rats. They also demonstrated a disordered pattern of macrophage expression over time, with a prolonged expression of TNFa and iNOS in the tissue and a disordered M2 macrophage response. CONCLUSION Excessive and prolonged macrophage response in older rats may contribute to poor wound healing in the vagina.
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103
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Yuvasri G, Rai R. Comparison of Efficacy of Autologous Platelet-Rich Fibrin versus Unna's Paste Dressing in Chronic Venous Leg Ulcers: A Comparative Study. Indian Dermatol Online J 2020; 11:58-61. [PMID: 32055510 PMCID: PMC7001417 DOI: 10.4103/idoj.idoj_119_19] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Background: Chronic venous leg ulcers are difficult to treat and recurrences are common. Among various modalities of treatment, platelet-rich fibrin (PRF) has shown promising results in ulcer healing by providing necessary growth factors. Unna's paste dressing has also proven to enhance wound healing. Aim: The aim of this study is to compare the efficacy of autologous PRF versus Unna's paste dressing in chronic venous leg ulcer patients and to compare the mean reduction in ulcer area at the end of 4 weeks. Materials and Methods: Twenty patients with chronic venous leg ulcers were randomly divided into two groups. Group 1: Patients received PRF dressing which was repeated every week for 4 weeks. Group 2: Patients received Unna's paste dressing once a week for 4 weeks. The ulcer size was assessed with the help of photographs, and ulcer area was measured. Results: The mean reduction in the area of the ulcer size in the PRF group was 86.03% and in the Unna's paste group was 71.97%, which was not statistically significant with a P value of 0.223. Conclusion: We conclude that though there was no statistical significance between the groups, PRF showed a significant reduction in ulcer size.
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Affiliation(s)
- G Yuvasri
- Department of Dermatology, PSG Hospitals, Coimbatore, Tamil Nadu, India
| | - Reena Rai
- Department of Dermatology, PSG Hospitals, Coimbatore, Tamil Nadu, India
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104
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Nosenko MA, Ambaryan SG, Drutskaya MS. Proinflammatory Cytokines and Skin Wound Healing in Mice. Mol Biol 2019. [DOI: 10.1134/s0026893319050121] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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105
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Sandhu VK, Alavi A. The role of anti-tumour necrosis factor in wound healing: A case report of refractory ulcerated necrobiosis lipoidica treated with adalimumab and review of the literature. SAGE Open Med Case Rep 2019; 7:2050313X19881594. [PMID: 31666953 PMCID: PMC6801891 DOI: 10.1177/2050313x19881594] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Necrobiosis lipoidica is a chronic granulomatous disease historically associated
with diabetes. Necrobiosis lipoidica commonly presents with erythematous papules
or plaques on the anterior lower extremities, which can be ulcerated in up to
30% of patients. The pathophysiology of necrobiosis lipoidica is unknown but
proposed to be predominantly linked to microangiopathy. No treatment option for
necrobiosis lipoidica has shown consistent efficacy. Previous case reports have
shown immune-modulating agents to be reasonable treatment options for ulcerative
necrobiosis lipoidica. However, evidence for the tumour necrosis factor-alpha
inhibitor, adalimumab, is limited and contradictory. We report a case of a
74-year-old type 2 diabetic female with a 2-year history of multiple ulcerated
necrobiosis lipoidica plaques resistant to topical and systemic therapy.
Treatment with adalimumab showed complete re-epithelization of all ulcers by
week 28. Adalimumab may be an effective treatment option for ulcerated
necrobiosis lipoidica that has failed traditional therapies. Further reports of
adalimumab treatment of necrobiosis lipoidica and other chronic inflammatory
wounds are needed.
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Affiliation(s)
| | - Afsaneh Alavi
- Department of Dermatology, University of Toronto, Toronto, ON, Canada.,York Dermatology Center, Richmond Hill, ON, Canada
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106
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Nguyen T, Payan B, Zambrano A, Du Y, Bondesson M, Mohan C. Epigallocatechin-3-gallate suppresses neutrophil migration speed in a transgenic zebrafish model accompanied by reduced inflammatory mediators. J Inflamm Res 2019; 12:231-239. [PMID: 31695470 PMCID: PMC6718250 DOI: 10.2147/jir.s224834] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2019] [Accepted: 05/17/2019] [Indexed: 11/23/2022] Open
Abstract
Background Polyphenol catechins from green tea, particularly (−)-epigallocatechin-3-gallate (EGCG), exhibits numerous beneficial health effects, although the mechanisms remain unclear. Methods In this study, the mechanism of EGCG-mediated healing in an experimentally injured zebrafish model was examined at the cellular and molecular level using confocal microscopy and gene expression analysis. Results The mechanisms of action of EGCG were shown to involve: (1) reducing neutrophil response (accumulation, travel speed, and distance) and (2) downregulating the expression of IL-1β, TNFα, and related signaling pathways. As determined by dynamic time-lapse tracking studies, the local accumulation of neutrophils with high migration speeds after wounding (n=33 cells, v=0.020 μm/s, d=37.8 μm), underwent significant reduction following treatment with EGCG doses of 300 μM (n=22 cells, v=0.013 μm/s, d=39.5 μm) and 600 μM (n=18 cells, v=0.008 μm/s, d=9.53 μm). Reverse transcription polymerase chain reaction studies revealed that several signature genes in the IL-1β, TNFα, and related signaling pathways were downregulated after EGCG treatment. Conclusion The convenience, transparency, and simplicity of the zebrafish model facilitate tracking of fluorescent neutrophils in real time, in order to monitor inflammation, and assess the impact of therapeutic agents.
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Affiliation(s)
- Thao Nguyen
- Biomedical Engineering Department, University of Houston, Houston, TX 77204, USA
| | - Brittany Payan
- Biomedical Engineering Department, University of Houston, Houston, TX 77204, USA
| | - Amarayca Zambrano
- Biomedical Engineering Department, University of Houston, Houston, TX 77204, USA
| | - Yong Du
- Biomedical Engineering Department, University of Houston, Houston, TX 77204, USA
| | - Maria Bondesson
- Department of Intelligent Systems Engineering, Indiana University, Bloomington, IN 47405, USA
| | - Chandra Mohan
- Biomedical Engineering Department, University of Houston, Houston, TX 77204, USA
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107
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Bemani E, Oryan A, Bahrami S. Effectiveness of amiodarone in treatment of cutaneous leishmaniasis caused by Leishmania major. Exp Parasitol 2019; 205:107747. [PMID: 31442454 DOI: 10.1016/j.exppara.2019.107747] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 08/17/2019] [Accepted: 08/19/2019] [Indexed: 01/19/2023]
Abstract
Development of new chemotherapeutic agents is an essential issue in the treatment and control of a disease. This study aimed to evaluate the anti-leishmanial activity of amiodarone, an antiarrhythmic class III drug, against Leishmania major, the most prevalent etiological agent of cutaneous leishmaniasis in the old world. The proliferation of promastigotes and intracellular amastigotes in the absence or presence of amiodarone was estimated, in an in vitro study. For in vivo study, five weeks after infection of BALB/c mice with L. major, when the lesions appeared at the injection site, the mice were divided into four groups (n = 6 each); treatment was conducted for 28 consecutive days with vehicle, amiodarone at 40 mg/kg orally and glucantime at 60 mg/kg intraperitoneally. Therapy with amiodarone reduced the size of lesions compared to the untreated group after 12 days. Amiodarone decreased the parasite load and inflammatory responses, particularly the macrophages containing amastigotes, and enhanced granulation tissue formation in the dermis and subcutaneous area. The Tumor necrosis factor-α and Interleukin-6 levels were significantly lower in the cell culture supernatants of the inguinal lymph node in the amiodarone treated group compared to the vehicle and untreated groups. Amiodarone significantly increased the activity of glutathione peroxidase in comparison to the vehicle and untreated groups but did not affect the plasma levels of superoxide dismutase, malondialdehyde, adiponectin, and ferric reducing ability of plasma. Therefore, the anti- L. major activity and immunomodulatory effects of amiodarone reduced the parasitic load and enhanced wound healing in cutaneous leishmaniasis in BALB/c mice. Amiodarone reduced the lesion surface area, but it did not cure it completely.
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Affiliation(s)
- E Bemani
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran
| | - A Oryan
- Department of Pathology, School of Veterinary Medicine, Shiraz University, Shiraz, Iran.
| | - S Bahrami
- Department of Parasitology, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran
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108
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Dhall S, Hoffman T, Sathyamoorthy M, Lerch A, Jacob V, Moorman M, Kuang JQ, Danilkovitch A. A Viable Lyopreserved Amniotic Membrane Modulates Diabetic Wound Microenvironment and Accelerates Wound Closure. Adv Wound Care (New Rochelle) 2019; 8:355-367. [PMID: 31346490 PMCID: PMC6657363 DOI: 10.1089/wound.2018.0931] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 01/28/2019] [Indexed: 12/20/2022] Open
Abstract
Objective: Wound healing is a complex process involving the dynamic interplay of various types of cells and bioactive factors. Impaired wound healing is characterized by a loss in synchronization of the process, resulting in non-healing chronic wounds. Human amniotic membrane (AM) has been shown to be effective in the management of chronic wounds. Recently, a viable lyopreserved AM (VLAM) has been developed. The VLAM retains the structural, molecular, and functional properties of fresh AM with the advantage of a long shelf life for living tissue at ambient temperatures. The objective of this study was to evaluate the effects of VLAM on the impaired wound microenvironment and wound closure in db/db mice. Approach: VLAM or saline gel (control) was applied weekly to 7-mm excisional wounds in diabetic (db/db) mice. Wound appearance and size were assessed weekly. Inflammation and redox state in wounds were tested by cytokine gene and protein expression, and by catalase and glutathione peroxidase activities, respectively. Wound tissue granulation and neovascularization were assessed histologically. Results: Diabetic wounds treated with VLAM closed faster than control wounds. On an average, VLAM-treated wounds closed 4 days faster than the control wounds, with a significantly faster rate of closure at days 7 and 14 as compared with control wounds. The faster closure correlated with a decrease in the expression of proinflammatory factors and oxidative stress, and an increase in angiogenesis and dermal thickness. Innovation: Effects of VLAM on a chronic wound microenvironment and underlying molecular mechanisms were investigated for the first time. Conclusion: VLAM accelerates wound closure in db/db mice by decreasing inflammation and oxidative stress and supporting wound tissue granulation, neovascularization, and re-epithelialization.
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Affiliation(s)
- Sandeep Dhall
- Research and Development, Osiris Therapeutics, Inc., Columbia, Maryland
| | - Tyler Hoffman
- Research and Development, Osiris Therapeutics, Inc., Columbia, Maryland
| | | | - Anne Lerch
- Research and Development, Osiris Therapeutics, Inc., Columbia, Maryland
| | - Vimal Jacob
- Research and Development, Osiris Therapeutics, Inc., Columbia, Maryland
| | - Matthew Moorman
- Research and Development, Osiris Therapeutics, Inc., Columbia, Maryland
| | - Jin-Qiang Kuang
- Research and Development, Osiris Therapeutics, Inc., Columbia, Maryland
| | - Alla Danilkovitch
- Research and Development, Osiris Therapeutics, Inc., Columbia, Maryland
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109
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The Histone Methyltransferase Setdb2 Modulates Macrophage Phenotype and Uric Acid Production in Diabetic Wound Repair. Immunity 2019; 51:258-271.e5. [PMID: 31350176 DOI: 10.1016/j.immuni.2019.06.015] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 04/18/2019] [Accepted: 06/19/2019] [Indexed: 12/26/2022]
Abstract
Macrophage plasticity is critical for normal tissue repair to ensure transition from the inflammatory to the proliferative phase of healing. We examined macrophages isolated from wounds of patients afflicted with diabetes and of healthy controls and found differential expression of the methyltransferase Setdb2. Myeloid-specific deletion of Setdb2 impaired the transition of macrophages from an inflammatory phenotype to a reparative one in normal wound healing. Mechanistically, Setdb2 trimethylated histone 3 at NF-κB binding sites on inflammatory cytokine gene promoters to suppress transcription. Setdb2 expression in wound macrophages was regulated by interferon (IFN) β, and under diabetic conditions, this IFNβ-Setdb2 axis was impaired, leading to a persistent inflammatory macrophage phenotype in diabetic wounds. Setdb2 regulated the expression of xanthine oxidase and thereby the uric acid (UA) pathway of purine catabolism in macrophages, and pharmacologic targeting of Setdb2 or the UA pathway improved healing. Thus, Setdb2 regulates macrophage plasticity during normal and pathologic wound repair and is a target for therapeutic manipulation.
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110
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Nguyen VT, Farman N, Palacios-Ramirez R, Sbeih M, Behar-Cohen F, Aractingi S, Jaisser F. Cutaneous Wound Healing in Diabetic Mice Is Improved by Topical Mineralocorticoid Receptor Blockade. J Invest Dermatol 2019; 140:223-234.e7. [PMID: 31278904 DOI: 10.1016/j.jid.2019.04.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 03/20/2019] [Accepted: 04/08/2019] [Indexed: 12/19/2022]
Abstract
Skin ulcers resulting from impaired wound healing are a serious complication of diabetes. Unresolved inflammation, associated with the dysregulation of both the phenotype and function of macrophages, is involved in the poor healing of diabetic wounds. Here, we report that topical pharmacological inhibition of the mineralocorticoid receptor (MR) by canrenoate or MR small interfering RNA can resolve inflammation to improve delayed skin wound healing in diabetic mouse models; importantly, wounds from normal mice are unaffected. The beneficial effect of canrenoate is associated with an increased ratio of anti-inflammatory M2 macrophages to proinflammatory M1 macrophages in diabetic wounds. Furthermore, we show that MR blockade leads to downregulation of the MR target, LCN2, which may facilitate macrophage polarization toward the M2 phenotype and improve impaired angiogenesis in diabetic wounds. Indeed, diabetic LCN2-deficient mice showed improved wound healing associated with macrophage M2 polarization and angiogenesis. In addition, recombinant LCN2 protein prevented IL-4-induced macrophage switch from M1 to M2 phenotype. In conclusion, topical MR blockade accelerates skin wound healing in diabetic mice via LCN2 reduction, M2 macrophage polarization, prevention of inflammation, and induction of angiogenesis.
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Affiliation(s)
- Van Tuan Nguyen
- INSERM, Centre de Recherche des Cordeliers, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France; Laboratory of progenitors and endothelial cells during and after pregnancy, INSERM UMR 938, Centre de Recherche St Antoine, Sorbonne Université, Paris, France; Department of Basic Science, Thai Nguyen University of Agriculture and Forestry, Thainguyen, Vietnam
| | - Nicolette Farman
- INSERM, Centre de Recherche des Cordeliers, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Roberto Palacios-Ramirez
- INSERM, Centre de Recherche des Cordeliers, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France
| | - Maria Sbeih
- Laboratory of progenitors and endothelial cells during and after pregnancy, INSERM UMR 938, Centre de Recherche St Antoine, Sorbonne Université, Paris, France
| | - Francine Behar-Cohen
- INSERM, Centre de Recherche des Cordeliers, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France; Faculty of Medicine, Université Paris Descartes, Paris, France
| | - Sélim Aractingi
- Laboratory of progenitors and endothelial cells during and after pregnancy, INSERM UMR 938, Centre de Recherche St Antoine, Sorbonne Université, Paris, France; Faculty of Medicine, Université Paris Descartes, Paris, France; Department of Dermatology, Hôpital Cochin-Tarnier, Paris, France
| | - Frederic Jaisser
- INSERM, Centre de Recherche des Cordeliers, Sorbonne Université, USPC, Université Paris Descartes, Université Paris Diderot, Paris, France; INSERM, Clinical Investigation Centre 1433, Vandoeuvre-lès-Nancy, France.
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111
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Chuluyan E, Casadei D, Ambrosi N, Caro F, Guerrieri D. The Role of Secretory Leukocyte Proteinase Inhibitor During Transplantation. CURRENT TRANSPLANTATION REPORTS 2019. [DOI: 10.1007/s40472-019-0226-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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112
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Zhu M, Jiang L, Yuan Y, Chen L, Liu X, Liang J, Zhu Q, Ding D, Song E. Intravitreal Ets1 siRNA alleviates choroidal neovascularization in a mouse model of age-related macular degeneration. Cell Tissue Res 2019; 376:341-351. [PMID: 30834976 DOI: 10.1007/s00441-019-03001-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2018] [Accepted: 01/29/2019] [Indexed: 12/16/2022]
Abstract
Choroidal neovascularization (CNV) is the basic feature of neovascular age-related macular degeneration (AMD), the leading cause of blindness in elders. Macrophages and microglia promote CNV via producing pro-angiogenic factors and inflammatory cytokines. Transcription factor E26 transformation specific-1 (Ets1) plays a pro-angiogenic role via its pro-inflammatory function. In this study, Ets1 increased and localized in the macrophages and microglia of a mouse laser-induced CNV region. Ets1 siRNA intravitreal injection ameliorated the leakage and area of CNV, as well as inhibiting the dysfunction of retinal pigment epithelium (RPE) cells and the activation of macrophages/microglia. Taken together, we provide a new insight into the molecular mechanism of CNV progression, in which Ets1 can be a new therapeutic target.
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Affiliation(s)
- Manhui Zhu
- Department of Ophthalmology, Lixiang Eye Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Li Jiang
- Department of Ophthalmology, Laizhou City People's Hospital, Yantai, Shandong, China
| | - You Yuan
- Department of Ophthalmology, Lixiang Eye Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Lili Chen
- Department of Ophthalmology, Lixiang Eye Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Xiaojuan Liu
- Department of Pathogen Biology, Medical College, Nantong University, Nantong, Jiangsu, China
| | - Juan Liang
- Department of Ophthalmology, Lixiang Eye Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Qiujian Zhu
- Department of Ophthalmology, Lixiang Eye Hospital of Soochow University, Suzhou, Jiangsu, China
| | - Dongmei Ding
- Department of Ophthalmology, Laizhou City People's Hospital, Yantai, Shandong, China.
| | - E Song
- Department of Ophthalmology, Lixiang Eye Hospital of Soochow University, Suzhou, Jiangsu, China.
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113
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Elliott CG, Wang J, Walker JT, Michelsons S, Dunmore-Buyze J, Drangova M, Leask A, Hamilton DW. Periostin and CCN2 Scaffolds Promote the Wound Healing Response in the Skin of Diabetic Mice. Tissue Eng Part A 2019; 25:1326-1339. [PMID: 30572781 DOI: 10.1089/ten.tea.2018.0268] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023] Open
Abstract
IMPACT STATEMENT Nonhealing skin wounds remain a significant burden on health care systems, with diabetic patients 20 times as likely to undergo a lower extremity amputation due to impaired healing. Novel treatments that suppress the proinflammatory signature and induce the proliferative and remodeling phases are needed clinically. We demonstrate that the addition of periostin and CCN2 in a scaffold form increases closure rates of full-thickness skin wounds in diabetic mice, concomitant with enhanced angiogenesis. Our results demonstrate the efficacy of periostin- and CCN2-containing biomaterials to stimulate wound closure, which could represent a novel method for the treatment of diabetic skin wounds.
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Affiliation(s)
- Christopher G Elliott
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
| | - Jiarong Wang
- Division of Vascular Surgery, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada.,Department of Vascular Surgery, West China Hospital, Sichuan University, Chengdu, Sichuan, P.R. China
| | - John T Walker
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
| | - Sarah Michelsons
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
| | - Joy Dunmore-Buyze
- Imaging Research Laboratories, Robarts Research Institute, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
| | - Maria Drangova
- Imaging Research Laboratories, Robarts Research Institute, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada.,Department of Medical Biophysics, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
| | - Andrew Leask
- Division of Oral Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
| | - Douglas W Hamilton
- Department of Anatomy and Cell Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada.,Division of Oral Biology, Schulich School of Medicine and Dentistry, University of Western Ontario, London, Canada
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114
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He M, Sun L, Fu X, McDonough SP, Chu CC. Biodegradable amino acid-based poly(ester amine) with tunable immunomodulating properties and their in vitro and in vivo wound healing studies in diabetic rats' wounds. Acta Biomater 2019; 84:114-132. [PMID: 30508656 DOI: 10.1016/j.actbio.2018.11.053] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 11/26/2018] [Accepted: 11/29/2018] [Indexed: 12/17/2022]
Abstract
The objective of this study is to design a new family of biodegradable synthetic polymeric biomaterials for providing a tunable inhibition of macrophage's nitric oxide synthase (NOS) pathway. l-Arginine (Arg) is the common substrate for NOS and arginase. Both two metabolic pathways participate in the wound healing process. An impaired wound healing, such as diabetic or other chronic wounds is usually associated with an overproduction of NO by macrophages via the NOS pathway. In this study, a new family of l-nitroarginine (NOArg) based polyester amide (NOArg-PEA) and NOArg-Arg PEA copolymers (co-PEA) were designed and synthesized with different composition ratios. The NOArg-PEA and NOArg-Arg co-PEAs are biodegradable (more than 50% degradation in vitro in 4 days at 37 °C), biocompatible and did not activate the resting macrophage immune response per se. When classically activated or alternatively activated macrophages (CAM/AAM) were incubated with NOArg-PEA and NOArg-Arg co-PEAs, the treatments decreased the NO production of CAM, increased the arginase activity in both CAM and AAM, increased TGF-β1 production of CAM to various degrees and had no significant effect on TNF-α production. Diabetic rat models were used to evaluate the efficacy of NOArg-PEA and NOArg-Arg co-PEAs on wound healing. Diabetic rats treated with 2-NOArg-4 PEA, 2-NOArg-4-Arg-4 20/80, and 2-NOArg-4-Arg-4 50/50 biomaterials achieved 40%-80% faster-wound healing when compared with the control on day 7. The data from the histological and immunohistochemical analysis showed that the 2-NOArg-4-Arg-4 20/80 and 2-NOArg-4-Arg-4 50/50 treatments led to more AAM phenotypes (CD206) and arginase I production in wound tissue than the control during the first 7 days, i.e., suggesting pro-healing wound microenvironment with improved re-epithelialization of wound healing. A similar trend was retained until day 14. The 2-NOArg-4-Arg-4 20/80 and 2-NOArg-4-Arg-4 50/50 treatments also increased the collagen deposition and angiogenesis in the healing wound between day 7 and day 14. Both in vitro and in vivo data of this study showed that this new family of NOArg-Arg co-PEA biomaterials have the potential as viable alternatives for treating impaired wound healing, such as diabetic or other types of chronic wounds. STATEMENT OF SIGNIFICANCE: Diabetic or other chronic wounds is usually associated with an overproduction of NO and pro-inflammatory signals by macrophages. Arginine supplement or NOS inhibitors administration failed to achieve an expected improved wound healing because of the dynamic complexity of arginine catabolism, the difficulty in transition from pro-inflammatory to pro-healing, and the short-term efficacy. We designed and synthesized a new family of water-soluble and degradable nitroarginine-arginine polyester amides to rebalance NOS/arginase metabolism pathways of macrophages. They showed tunable immunomodulating properties in vitro. The in vivo studies were performed to evaluate their efficacy in accelerating the healing. These new biomaterials have the potential as viable alternatives for treating impaired wound healing. The general audience of Acta Biomaterialia should be interested in these findings.
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Kloc M, Ghobrial RM, Wosik J, Lewicka A, Lewicki S, Kubiak JZ. Macrophage functions in wound healing. J Tissue Eng Regen Med 2018; 13:99-109. [PMID: 30445662 DOI: 10.1002/term.2772] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 10/31/2018] [Accepted: 11/13/2018] [Indexed: 12/31/2022]
Abstract
Macrophages play a crucial role in regeneration and consecutive phases of wound healing. In this review, we summarise current knowledge on the ontogeny, origin, phenotypical heterogeneity, and functional exchangeability of macrophages participating in these processes. We also describe the genetic, pharmacologic, and bioengineering methods for manipulation of macrophage phenotype and functions and their potential for development of the novel, clinically applicable therapies.
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Affiliation(s)
- Malgorzata Kloc
- Immunobiology, The Houston Methodist Research Institute, Houston, Texas, USA.,Department of Surgery, The Houston Methodist Hospital, Houston, Texas, USA.,MD Anderson Cancer Center, University of Texas, Houston, Texas, USA
| | - Rafik M Ghobrial
- Immunobiology, The Houston Methodist Research Institute, Houston, Texas, USA.,Department of Surgery, The Houston Methodist Hospital, Houston, Texas, USA
| | - Jarek Wosik
- Electrical and Computer Engineering Department, University of Houston, Houston, Texas, USA.,Texas Center for Superconductivity, University of Houston, Houston, Texas, USA
| | - Aneta Lewicka
- Laboratory of Epidemiology, Military Institute of Hygiene and Epidemiology (WIHE), Warsaw, Poland
| | - Sławomir Lewicki
- Department of Regenerative Medicine and Cell Biology, Military Institute of Hygiene and Epidemiology (WIHE), Warsaw, Poland
| | - Jacek Z Kubiak
- Department of Regenerative Medicine and Cell Biology, Military Institute of Hygiene and Epidemiology (WIHE), Warsaw, Poland.,Cell Cycle Group, Faculty of Medicine, Univ Rennes, UMR 6290, CNRS, Institute of Genetics and Development of Rennes, Rennes, France
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Bucur M, Dinca O, Vladan C, Popp C, Nichita L, Cioplea M, Stînga P, Mustatea P, Zurac S, Ionescu E. Variation in Expression of Inflammation-Related Signaling Molecules with Profibrotic and Antifibrotic Effects in Cutaneous and Oral Mucosa Scars. J Immunol Res 2018; 2018:5196023. [PMID: 30622976 PMCID: PMC6304192 DOI: 10.1155/2018/5196023] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 10/06/2018] [Accepted: 10/11/2018] [Indexed: 01/08/2023] Open
Abstract
Wound healing is a complex biologic process evolving in three phases: inflammation, proliferation, and tissue remodeling controlled by numerous growth factors and cytokines. Oral mucosa wounds heal with significantly less important scars with less numerous macrophages and mast cells and more numerous myofibroblasts than cutaneous counterparts. We analyzed 32 cutaneous and 32 oral mucosa scars for TGFbeta1, TGFbeta2, TGFbeta3, TNFalpha, PDGF BB and FGF1 expression in mesenchymal cells, endothelial cells, macrophages, and multinucleated giant cells. We identified differences in the expression of profibrotic and antifibrotic factors in oral mucosa and skin scars; TGFbeta2 was positive in cutaneous multinucleated giant cells, TNFalpha was positive in cutaneous macrophages, and both were negative in oral mucosa while TGFbeta3 was positive in oral macrophages and mostly negative in cutaneous ones. PDGF BB and FGF1 were positive in oral endothelial cells and oral macrophages and negative in macrophages with opposite positivity pattern in cutaneous scars. Based on these findings, macrophage seems to be the key player in modulating pro- and antifibrotic processes in wound regeneration.
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Affiliation(s)
- Mihai Bucur
- “Carol Davila” University of Medicine and Pharmacy, 37 Dionisie Lupu, 020021 Bucharest, Romania
- Department of OroMaxilloFacial Surgery, Clinical Hospital of OroMaxilloFacial Surgery Prof. Dr. Dan Theodorescu, 17 Calea Plevnei, 010221 Bucharest, Romania
| | - Octavian Dinca
- “Carol Davila” University of Medicine and Pharmacy, 37 Dionisie Lupu, 020021 Bucharest, Romania
- Department of OroMaxilloFacial Surgery, Clinical Hospital of OroMaxilloFacial Surgery Prof. Dr. Dan Theodorescu, 17 Calea Plevnei, 010221 Bucharest, Romania
| | - Cristian Vladan
- “Carol Davila” University of Medicine and Pharmacy, 37 Dionisie Lupu, 020021 Bucharest, Romania
- Department of OroMaxilloFacial Surgery, Clinical Hospital of OroMaxilloFacial Surgery Prof. Dr. Dan Theodorescu, 17 Calea Plevnei, 010221 Bucharest, Romania
| | - Cristiana Popp
- Department of Pathology, Colentina University Hospital, 21 Stefan cel Mare, 020125 Bucharest, Romania
| | - Luciana Nichita
- “Carol Davila” University of Medicine and Pharmacy, 37 Dionisie Lupu, 020021 Bucharest, Romania
- Department of Pathology, Colentina University Hospital, 21 Stefan cel Mare, 020125 Bucharest, Romania
| | - Mirela Cioplea
- Department of Pathology, Colentina University Hospital, 21 Stefan cel Mare, 020125 Bucharest, Romania
| | - Patricia Stînga
- Department of Pathology, Colentina University Hospital, 21 Stefan cel Mare, 020125 Bucharest, Romania
| | - Petronel Mustatea
- “Carol Davila” University of Medicine and Pharmacy, 37 Dionisie Lupu, 020021 Bucharest, Romania
- Department of Surgery, Clinical Hospital “Dr. Ion Cantacuzino”, 5 Ioan Movila, 020475 Bucharest, Romania
| | - Sabina Zurac
- “Carol Davila” University of Medicine and Pharmacy, 37 Dionisie Lupu, 020021 Bucharest, Romania
- Department of Pathology, Colentina University Hospital, 21 Stefan cel Mare, 020125 Bucharest, Romania
| | - Ecaterina Ionescu
- “Carol Davila” University of Medicine and Pharmacy, 37 Dionisie Lupu, 020021 Bucharest, Romania
- Ambulatory of Orthodontics, Clinical Hospital of OroMaxilloFacial Surgery Prof. Dr. Dan Theodorescu, 17 Calea Plevnei, 010221 Bucharest, Romania
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Wu YK, Cheng NC, Cheng CM. Biofilms in Chronic Wounds: Pathogenesis and Diagnosis. Trends Biotechnol 2018; 37:505-517. [PMID: 30497871 DOI: 10.1016/j.tibtech.2018.10.011] [Citation(s) in RCA: 211] [Impact Index Per Article: 35.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 10/27/2018] [Accepted: 10/29/2018] [Indexed: 12/17/2022]
Abstract
Chronic non-healing wounds have become a major worldwide healthcare burden. The impact of biofilms on chronic wound infection is well established. Despite increasing understanding of the underlying mechanism of biofilm formation in chronic wounds, current strategies for biofilm diagnosis in chronic wounds are still far from ideal. In this review, we briefly summarize the mechanism of biofilm formation and focus on current diagnostic approaches of chronic wound biofilms based on morphology, microbiology, and molecular assays. Innovative biotechnological approaches, such as wound blotting and transcriptomic analysis, may further shed light on this unmet clinical need. The continuous development of these sophisticated diagnostic approaches can markedly contribute to the future implementation of point-of-care biofilm detection in chronic wound care.
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Affiliation(s)
- Yuan-Kun Wu
- Department of Internal Medicine, National Taiwan University Hospital and College of Medicine, Taipei 100, Taiwan; These authors contributed equally
| | - Nai-Chen Cheng
- Department of Surgery, National Taiwan University Hospital and College of Medicine, Taipei 100, Taiwan; These authors contributed equally.
| | - Chao-Min Cheng
- Institute of Biomedical Engineering and Frontier Research Center on Fundamental and Applied Sciences of Matters, National Tsing Hua University, Hsinchu 300, Taiwan.
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Mehrbani Azar Y, Green R, Niesler CU, van de Vyver M. Antioxidant Preconditioning Improves the Paracrine Responsiveness of Mouse Bone Marrow Mesenchymal Stem Cells to Diabetic Wound Fluid. Stem Cells Dev 2018; 27:1646-1657. [PMID: 30187827 DOI: 10.1089/scd.2018.0145] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Mesenchymal stem cells (MSCs) are a promising therapeutic tool for the treatment of nonhealing diabetic wounds. The pathological nature of the niche microenvironment limits the use of autologous cell therapy in diabetic patients. Prolonged exposure of endogenous MSCs to a pathological microenvironment in vivo reduces their ability to respond to environmental cues. This study investigated the effectiveness of ex vivo antioxidant treatment [N-acetylcysteine (7.5 mM NAC) and Ascorbic acid 2-phosphate (0.6 mM AAP)] to restore the paracrine function of diabetic MSCs. Healthy control [bone marrow stem cells derived from wild-type mice (SCWT)] (source: wild-type C57BL/6J mice) (n = 12) and impaired/dysfunctional [bone marrow stem cells derived from ob/ob mice (SCob)] (source: obese diabetic, B6.Cg-Lepob/J mice) (n = 12) MSCs were isolated. Ex vivo treatment groups (SCWT vs. SCob) were as follows: (1) no treatment (baseline phenotype), (2) stimulated with diabetic wound fluid (DWF) (baseline response), (3) antioxidant preconditioning (preconditioned phenotype), and (4) antioxidant preconditioned with subsequent stimulation with DWF (preconditioned response). The paracrine responsiveness on both the molecular (mRNA expression of 80 cytokines and receptors, quantitative polymerase chain reaction microarray) and protein (23-plex bead-array Luminex assay) level was assessed. At baseline, 31 genes were overexpressed (> × 2-fold) and 39 genes were underexpressed (> × 2-fold) in SCob versus SCWT. In conditioned media, significant differences (P < 0.05) were detected at baseline for two proinflammatory cytokines [tumor necrosis factor alpha (TNFα) and interferon gamma (IFNγ)], four chemokines [keratinocyte chemoattractant (KC), granulocyte colony-stimulating factor (GCSF), Eotaxin, and macrophage chemoattractant protein (MCP1)], and one anti-inflammatory cytokine [interleukin 10 (IL10)]. Following stimulation with DWF, significant differences (P < 0.05) were detected in the secretion of two chemokines [granulocyte macrophage colony-stimulating factor (GMCSF) and Eotaxin], three proinflammatory cytokines (TNFα, IFNγ, and IL9), and four anti-inflammatory cytokines (IL10, IL4, IL13, and IL3). Antioxidant preconditioning significantly dampened the excessive TNFα response observed in SCob and improved the secretion of IL10. Taken together these data suggest that the combined ex vivo treatment of autologous stem cells with NAC and AAP could potentially be an effective strategy to restore the paracrine function of impaired diabetic MSCs before transplantation.
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Affiliation(s)
- Yashar Mehrbani Azar
- Division of Endocrinology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Robyn Green
- Division of Endocrinology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Carola Ulrike Niesler
- Discipline of Biochemistry, School of Life Sciences, University of Kwazulu-Natal, Scottsville, South Africa
| | - Mari van de Vyver
- Division of Endocrinology, Department of Medicine, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
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Kopecki Z, Stevens NE, Yang GN, Melville E, Cowin AJ. Recombinant Leucine-Rich Repeat Flightless-Interacting Protein-1 Improves Healing of Acute Wounds through Its Effects on Proliferation Inflammation and Collagen Deposition. Int J Mol Sci 2018; 19:ijms19072014. [PMID: 29996558 PMCID: PMC6073877 DOI: 10.3390/ijms19072014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2018] [Revised: 07/04/2018] [Accepted: 07/07/2018] [Indexed: 02/07/2023] Open
Abstract
Wound healing is an increasing clinical problem involving substantial morbidity, mortality, and rising health care costs. Leucine-rich repeat flightless-interacting protein-1 (LRRFIP-1) regulates toll-like receptor (TLR)-mediated inflammation, suggesting a potential role in the healing of wounds. We sought to determine the role of LRRFIP-1 in wound repair and whether the exogenous addition of recombinant LRRFIP-1 (rLRRFIP-1) affected healing responses. Using a model of full-thickness incisional acute wounds in BALB/c mice, we investigated the effect of wounding on LRRFIP-1 expression. The effect of rLRRFIP-1 on cellular proliferation, inflammation, and collagen deposition was also investigated. LRRFIP-1 was upregulated in response to wounding, was found to directly associate with flightless I (Flii), and significantly increased cellular proliferation both in vitro and in vivo. rLRRFIP-1 reduced Flii expression in wounds in vivo and resulted in significantly improved healing with a concurrent dampening of TLR4-mediated inflammation and improved collagen deposition. Additionally, decreased levels of TGF-β1 and increased levels of TGF-β3 were observed in rLRRFIP-1-treated wounds suggesting a possible antiscarring effect of rLRRFIP-1. Further studies are required to elucidate if the mechanisms behind LRRFIP-1 action in wound repair are independent of Flii. However, these results identify rLRRFIP-1 as a possible treatment modality for improved healing of acute wounds.
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Affiliation(s)
- Zlatko Kopecki
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide SA 5095, Australia.
| | - Natalie E Stevens
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide SA 5095, Australia.
| | - Gink N Yang
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide SA 5095, Australia.
| | - Elizabeth Melville
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide SA 5095, Australia.
| | - Allison J Cowin
- Regenerative Medicine, Future Industries Institute, University of South Australia, Adelaide SA 5095, Australia.
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Dorati R, Medina JL, DeLuca PP, Leung KP. Development of a Topical 48-H Release Formulation as an Anti-scarring Treatment for Deep Partial-Thickness Burns. AAPS PharmSciTech 2018; 19:2264-2275. [PMID: 29790019 DOI: 10.1208/s12249-018-1030-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 04/23/2018] [Indexed: 02/08/2023] Open
Abstract
The purpose of this study was to develop pirfenidone (PF) ointment formulations for a dose finding study in the prophylactic treatment of deep partial-thickness burns in a mouse model. A preformulation study was performed to evaluate the solubility of PF in buffers and different solvents and its stability. Three different formulations containing 1, 3.5, and 6.5% w/w PF were prepared and optimized for their composition for testing in mice. Optimized formulations showed promising in vitro release profiles, in which 20-45% of PF was released in the first 7 h and 70-90% released within 48 h. The rheological properties of the ointment remained stable throughout storage at 25 ± 2°C/60% RH. Animal studies showed treatments of burn wounds during the inflammatory stage of wound healing with PF ointments at different drug concentrations had no adverse effects on reepithelization. Moreover, 6.5% PF ointment (F3) reduced the expression of pro-inflammatory cytokines IL-12p70 and TNFα. This study suggests that hydrocarbon base ointment could be a promising dosage form for topical delivery of PF in treatment of deep partial-thickness burns.
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122
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Larouche J, Sheoran S, Maruyama K, Martino MM. Immune Regulation of Skin Wound Healing: Mechanisms and Novel Therapeutic Targets. Adv Wound Care (New Rochelle) 2018; 7:209-231. [PMID: 29984112 PMCID: PMC6032665 DOI: 10.1089/wound.2017.0761] [Citation(s) in RCA: 301] [Impact Index Per Article: 50.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 12/12/2017] [Indexed: 12/17/2022] Open
Abstract
Significance: The immune system plays a central role in orchestrating the tissue healing process. Hence, controlling the immune system to promote tissue repair and regeneration is an attractive approach when designing regenerative strategies. This review discusses the pathophysiology of both acute and chronic wounds and possible strategies to control the immune system to accelerate chronic wound closure and promote skin regeneration (scar-less healing) of acute wounds. Recent Advances: Recent studies have revealed the key roles of various immune cells and immune mediators in skin repair. Thus, immune components have been targeted to promote chronic wound repair or skin regeneration and several growth factors, cytokines, and biomaterials have shown promising results in animal models. However, these novel strategies are often struggling to meet efficacy standards in clinical trials, partly due to inadequate drug delivery systems and safety concerns. Critical Issues: Excess inflammation is a major culprit in the dysregulation of normal wound healing, and further limiting inflammation effectively reduces scarring. However, current knowledge is insufficient to efficiently control inflammation and specific immune cells. This is further complicated by inadequate drug delivery methods. Future Directions: Improving our understanding of the molecular pathways through which the immune system controls the wound healing process could facilitate the design of novel regenerative therapies. Additionally, better delivery systems may make current and future therapies more effective. To promote the entry of current regenerative strategies into clinical trials, more evidence on their safety, efficacy, and cost-effectiveness is also needed.
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Affiliation(s)
- Jacqueline Larouche
- European Molecular Biology Laboratory Australia, Australian Regenerative Medicine Institute, Monash University, Victoria, Australia
| | - Sumit Sheoran
- European Molecular Biology Laboratory Australia, Australian Regenerative Medicine Institute, Monash University, Victoria, Australia
| | - Kenta Maruyama
- WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Mikaël M. Martino
- European Molecular Biology Laboratory Australia, Australian Regenerative Medicine Institute, Monash University, Victoria, Australia
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Ghosh M, Daniels J, Pyra M, Juzumaite M, Jais M, Murphy K, Taylor TN, Kassaye S, Benning L, Cohen M, Weber K. Impact of chronic sexual abuse and depression on inflammation and wound healing in the female reproductive tract of HIV-uninfected and HIV-infected women. PLoS One 2018; 13:e0198412. [PMID: 29894487 PMCID: PMC5997353 DOI: 10.1371/journal.pone.0198412] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2017] [Accepted: 05/19/2018] [Indexed: 12/18/2022] Open
Abstract
Sexual violence is associated with increased risk of HIV acquisition/transmission in women. Forced sex can result in physical trauma to the reproductive tract as well as severe psychological distress. However, immuno-biological mechanisms linking sexual violence and HIV susceptibility are incompletely understood. Using the Women’s Interagency HIV Study repository, a total of 77 women were selected to form 4 groups, stratified by HIV serostatus, in the following categories: 1) no sexual abuse history and low depressive symptom score (below clinically significant cut-off, scores <16) (Control); 2) no sexual abuse history but high depressive symptom score, ≥16 (Depression); 3) chronic sexual abuse exposure and low depressive symptom score (Abuse); 4) chronic sexual abuse exposure and high depressive symptom score (Abuse+Depression). Inflammation-associated cytokines/chemokines/proteases (TNF-α, IL-6, IL-1α, IL-1β, TGF-β MIP-3α, IP-10, MCP-1, Cathepsin B), anti-inflammatory/anti-HIV mediators (Secretory leukocyte protease inhibitor (SLPI), Elafin, beta defensin 2 (HBD2), alpha defensins (HNP 1–3), Thrombospondin (TSP-1), Serpin A1, A5, Cystatin A, B), and wound-healing mediators (Gro-α, VEGF, PDGF, EGF, FGF, IGF), were measured in cervical-vaginal lavage (CVL) using ELISA. Linear regression was used to model association of biomarkers with depression and abuse as predictor variables; the interaction between depression and abuse was also tested. Anti-HIV activity in CVL was tested using TZM-bl indicator cell line. In HIV-uninfected women, median levels of IL-6 (p = 0.04), IL-1α (p<0.01), TGF-β (p = 0.01), IP-10 (p = <0.01), PDGF (p<0.01) and FGF (p<0.01), differed significantly between groups. Specifically, an association was found between chronic sexual abuse and increased IL-1α (p<0.01), MIP-3α (p = 0.04), IP-10 (p<0.01), Serpin B1 (p = 0.01), FGF (p = 0.04) and decreased TGF-β (p<0.01), MCP-1 (p = 0.02), PDGF (p<0.01). Further, there was evidence of significant interactions between chronic sexual abuse and current depression for IL-1α, IP-10, Serpin A1, Cystatin B, and FGF. In HIV-infected women, median levels of TNF-α (p<0.01), IL-6 (p = 0.05), MIP-3α (p<0.01), and MCP-1 (p = 0.01), differed significantly between groups. Specifically, an association was found between chronic sexual abuse and increased MCP-1 (p = 0.03), Gro-α (p = 0.01) and decreased TNF-α (p<0.01), IL-1α (p = 0.02), MIP-3α (p<0.01) and Cathepsin B (p = 0.03). Current depressive symptoms were associated with significantly decreased MIP-3α (p<0.01). There was evidence of significant interactions between chronic sexual abuse and current depression for MCP-1 and FGF. No significant differences were observed in anti-HIV activity among all eight groups. Heat-map analyses revealed distinct immune network patterns, particularly in the Abuse groups for both HIV-infected and uninfected women. Our data indicates a complex relationship between chronic sexual abuse exposure, depressive symptoms, and FRT immune mediators that are also affected by HIV status. Association of chronic sexual abuse with increase in inflammation-associated cytokine/chemokine expression, along with impaired wound-healing associated growth-factors can create a microenvironment that can facilitate HIV infection. Evaluation of longitudinal changes in exposures and biomarkers are needed to untangle the immuno-biological mechanisms that may put women who endure life-long sexual abuse at increased risk for HIV.
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Affiliation(s)
- Mimi Ghosh
- Department of Epidemiology and Biostatistics, Milken Institute School of Public Health, George Washington University, Washington DC, United States of America
- * E-mail:
| | - Jason Daniels
- Department of Epidemiology and Biostatistics, Milken Institute School of Public Health, George Washington University, Washington DC, United States of America
| | - Maria Pyra
- Department of Epidemiology, School of Public Health, University of Washington, Seattle, WA, United States of America
| | - Monika Juzumaite
- Department of Epidemiology and Biostatistics, Milken Institute School of Public Health, George Washington University, Washington DC, United States of America
| | - Mariel Jais
- Department of Epidemiology and Biostatistics, Milken Institute School of Public Health, George Washington University, Washington DC, United States of America
| | - Kerry Murphy
- Albert Einstein College of Medicine/Montefiore Medical Center, Bronx, NY, United States of America
| | - Tonya N. Taylor
- SUNY Downstate Medical Center, Brooklyn, NY, United States of America
| | - Seble Kassaye
- Georgetown University Medical Center, Washington DC, United States of America
| | - Lorie Benning
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States of America
| | - Mardge Cohen
- Department of Medicine, John H. Stroger Jr Hospital of Cook County, Chicago, IL, United States of America
| | - Kathleen Weber
- Cook County Health and Hospitals System/ Hektoen Institute of Medicine, Chicago, IL, United States of America
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Sproston NR, Ashworth JJ. Role of C-Reactive Protein at Sites of Inflammation and Infection. Front Immunol 2018; 9:754. [PMID: 29706967 PMCID: PMC5908901 DOI: 10.3389/fimmu.2018.00754] [Citation(s) in RCA: 1377] [Impact Index Per Article: 229.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 03/26/2018] [Indexed: 01/08/2023] Open
Abstract
C-reactive protein (CRP) is an acute inflammatory protein that increases up to 1,000-fold at sites of infection or inflammation. CRP is produced as a homopentameric protein, termed native CRP (nCRP), which can irreversibly dissociate at sites of inflammation and infection into five separate monomers, termed monomeric CRP (mCRP). CRP is synthesized primarily in liver hepatocytes but also by smooth muscle cells, macrophages, endothelial cells, lymphocytes, and adipocytes. Evidence suggests that estrogen in the form of hormone replacement therapy influences CRP levels in the elderly. Having been traditionally utilized as a marker of infection and cardiovascular events, there is now growing evidence that CRP plays important roles in inflammatory processes and host responses to infection including the complement pathway, apoptosis, phagocytosis, nitric oxide (NO) release, and the production of cytokines, particularly interleukin-6 and tumor necrosis factor-α. Unlike more recent publications, the findings of early work on CRP can seem somewhat unclear and at times conflicting since it was often not specified which particular CRP isoform was measured or utilized in experiments and whether responses attributed to nCRP were in fact possibly due to dissociation into mCRP or lipopolysaccharide contamination. In addition, since antibodies for mCRP are not commercially available, few laboratories are able to conduct studies investigating the mCRP isoform. Despite these issues and the fact that most CRP research to date has focused on vascular disorders, there is mounting evidence that CRP isoforms have distinct biological properties, with nCRP often exhibiting more anti-inflammatory activities compared to mCRP. The nCRP isoform activates the classical complement pathway, induces phagocytosis, and promotes apoptosis. On the other hand, mCRP promotes the chemotaxis and recruitment of circulating leukocytes to areas of inflammation and can delay apoptosis. The nCRP and mCRP isoforms work in opposing directions to inhibit and induce NO production, respectively. In terms of pro-inflammatory cytokine production, mCRP increases interleukin-8 and monocyte chemoattractant protein-1 production, whereas nCRP has no detectable effect on their levels. Further studies are needed to expand on these emerging findings and to fully characterize the differential roles that each CRP isoform plays at sites of local inflammation and infection.
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Affiliation(s)
- Nicola R Sproston
- School of Healthcare Science, Manchester Metropolitan University, Manchester, United Kingdom
| | - Jason J Ashworth
- School of Healthcare Science, Manchester Metropolitan University, Manchester, United Kingdom
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Abstract
PURPOSE OF REVIEW Macrophages are central players in the immune response following tissue injury. These cells perform many functions, and the changing tissue microenvironment during injury shapes macrophage phenotype down a variety of polarized pathways. This review summarizes the current knowledge on the roles of macrophages during different stages of tissue injury, repair, and-if repair is not achieved-fibrosis. RECENT FINDINGS Macrophages present early in inflammation are functionally distinct from those at later stages. The predominant macrophage phenotype must transition from pro-inflammatory to pro-reparative to facilitate wound healing and scar resolution. If macrophages fail to acquire a tissue-healing phenotype, dysregulated signals can be drivers of disease processes, such as sustained, exuberant inflammation-as occurs in arthropathies-and fibrosis. Comprehensive understanding of the roles of specific macrophage populations at different stages of the repair process will support the development of immune-targeted therapies for diseases such as fibrosis.
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Affiliation(s)
- Kate S Smigiel
- Women's Guild Lung Institute, Departments of Medicine and Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA, 90048, USA
| | - William C Parks
- Women's Guild Lung Institute, Departments of Medicine and Biomedical Sciences, Cedars-Sinai Medical Center, 8700 Beverly Blvd, Los Angeles, CA, 90048, USA.
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126
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Moreno-Eutimio MA, Espinosa-Monroy L, Orozco-Amaro T, Torres-Ramos Y, Montoya-Estrada A, Jose Hicks J, Rodríguez-Ayala E, Moral PD, Moreno J, Cueto-García J. Enhanced healing and anti-inflammatory effects of a carbohydrate polymer with zinc oxide in patients with chronic venous leg ulcers: preliminary results. Arch Med Sci 2018; 14:336-344. [PMID: 29593807 PMCID: PMC5868658 DOI: 10.5114/aoms.2016.59851] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 08/01/2015] [Indexed: 12/25/2022] Open
Abstract
INTRODUCTION Insufficient wound healing related to chronic inflammation of chronic venous leg ulcers (CVUs) represents an important public health problem. The aim of this study was to evaluate the effects of a carbohydrate polymer with zinc oxide therapy on CVUs. MATERIAL AND METHODS Forty patients with CVUs were recruited for this study and were divided into a study group and control group. Patients In the study group were instructed to use venous compression treatment andtopical carbohydrate polymer with zinc oxide twice daily, while patients In the control group were treated with only venous compression treatment. All patients were followed up for 8 weeks. Peripheral blood samples and biosy tissue specimens were obtained at the initiation of treatment and after 8 weeks to assess serum levels of inflammatory cytokines as well as the percentage of leukocytes, T-helper cells, cytotoxic-T cells, macrophages and endothelial cells in the biopsy tissue using flow cytometry. RESULTS A significantly greater reduction in the mean percentage ulcer area from baseline to eight weeks was observed in the study group (up to 40% for large ulcers). Furthermore, the patients in the study group had reduced systemic levels of the pro-inflammatory cytokines IL-8 (p = 0.0028) and IL-6 (p = 0.0302), fewer total CD45+ cells (p = 0.0038) and more CD31+ cells (p = 0.045) present in ulcer biopsies compared to the control group. CONCLUSIONS The carbohydrate polymer with zinc oxide treatment with venous compression enhances healing of CVUs and improves quality of life due, in part, to its anti-inflammatory properties.
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Affiliation(s)
| | - Lorena Espinosa-Monroy
- Wound and Ostomy Clinic, Division of Research, Hospital Juarez de México, Ministry of Health, Mexico City, Mexico
| | - Tania Orozco-Amaro
- Immunobiology Laboratory, Hospital Juarez de México, Ministry of Health, Mexico City, Mexico
| | - Yessica Torres-Ramos
- Biochemistry Department, National Institute of Perinatology, Ministry of Health, Mexico City, Mexico
| | - Araceli Montoya-Estrada
- Biochemistry Department, National Institute of Perinatology, Ministry of Health, Mexico City, Mexico
| | - Juan Jose Hicks
- Health Research Policies, Coordinating Commission of National Health Institutes and Highly Specialized Hospitals, Mexico City, Mexico
| | | | - Pamela Del Moral
- Health Sciences Faculty, Anahuac University, State of Mexico, Mexico
| | - Jose Moreno
- Immunobiology Laboratory, Hospital Juarez de México, Ministry of Health, Mexico City, Mexico
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Moore AL, Marshall CD, Barnes LA, Murphy MP, Ransom RC, Longaker MT. Scarless wound healing: Transitioning from fetal research to regenerative healing. WILEY INTERDISCIPLINARY REVIEWS. DEVELOPMENTAL BIOLOGY 2018; 7:10.1002/wdev.309. [PMID: 29316315 PMCID: PMC6485243 DOI: 10.1002/wdev.309] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2016] [Revised: 09/07/2017] [Accepted: 10/27/2017] [Indexed: 01/08/2023]
Abstract
Since the discovery of scarless fetal skin wound healing, research in the field has expanded significantly with the hopes of advancing the finding to adult human patients. There are several differences between fetal and adult skin that have been exploited to facilitate scarless healing in adults including growth factors, cytokines, and extracellular matrix substitutes. However, no one therapy, pathway, or cell subtype is sufficient to support scarless wound healing in adult skin. More recently, products that contain or mimic fetal and adult uninjured dermis were introduced to the wound healing market with promising clinical outcomes. Through our review of the major experimental targets of fetal wound healing, we hope to encourage research in areas that may have a significant clinical impact. Additionally, we will investigate therapies currently in clinical use and evaluate whether they represent a legitimate advance in regenerative medicine or a vulnerary agent. WIREs Dev Biol 2018, 7:e309. doi: 10.1002/wdev.309 This article is categorized under: Adult Stem Cells, Tissue Renewal, and Regeneration > Regeneration Plant Development > Cell Growth and Differentiation Adult Stem Cells, Tissue Renewal, and Regeneration > Environmental Control of Stem Cells.
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Affiliation(s)
- Alessandra L. Moore
- Department of Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
- Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Clement D. Marshall
- Department of Surgery, Brigham and Women’s Hospital, Boston, Massachusetts
- Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Leandra A. Barnes
- Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Matthew P. Murphy
- Department of Surgery, Stanford University School of Medicine, Stanford, California
| | - Ryan C. Ransom
- Department of Surgery, Stanford University School of Medicine, Stanford, California
- Institute of Stem Cell Biology and Regenerative Medicine, Stanford University, Stanford, California
| | - Michael T. Longaker
- Department of Surgery, Stanford University School of Medicine, Stanford, California
- Institute of Stem Cell Biology and Regenerative Medicine, Stanford University, Stanford, California
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Hellwege JN, Russell SB, Williams SM, Edwards TL, Velez Edwards DR. Gene-based evaluation of low-frequency variation and genetically-predicted gene expression impacting risk of keloid formation. Ann Hum Genet 2018; 82:206-215. [PMID: 29484647 DOI: 10.1111/ahg.12245] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 12/08/2017] [Accepted: 01/08/2018] [Indexed: 12/31/2022]
Abstract
Keloids are benign dermal tumors occurring approximately 20 times more often in individuals of African descent as compared to individuals of European descent. While most keloids occur sporadically, a genetic predisposition is supported by both familial aggregation of some keloids and large differences in risk among populations. Despite Africans and African Americans being at increased risk over lighter-skinned individuals, little genetic research exists into this phenotype. Using a combination of admixture mapping and exome analysis, we reported multiple common variants within chr15q21.2-22.3 associated with risk of keloid formation in African Americans. Here we describe a gene-based association analysis using 478 African American samples with exome genotyping data to identify genes containing low-frequency variants associated with keloids, with evaluation of genetically-predicted gene expression in skin tissues using association summary statistics. The strongest signal from gene-based association was located in C15orf63 (P-value = 6.6 × 10-6 ) located at 15q15.3. The top result from gene expression was increased predicted DCAF4 expression (P-value = 5.5 × 10-4 ) in non-sun-exposed skin, followed by increased predicted OR10A3 expression in sun-exposed skin (P-value = 6.9 × 10-4 ). Our findings identify variation with putative roles in keloid formation, enhanced by the use of predicted gene expression to support the biological roles of variation identified only though genetic association studies.
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Affiliation(s)
- Jacklyn N Hellwege
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.,Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Shirley B Russell
- Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, TN, USA.,Division of Dermatology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Scott M Williams
- Department of Population and Quantitative Health Sciences, Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Todd L Edwards
- Division of Epidemiology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA.,Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, TN, USA
| | - Digna R Velez Edwards
- Vanderbilt Genetics Institute, Vanderbilt University Medical Center, Nashville, TN, USA.,Department of Obstetrics and Gynecology, Vanderbilt University Medical Center, Nashville, TN, USA
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Yoga and immune system functioning: a systematic review of randomized controlled trials. J Behav Med 2018; 41:467-482. [PMID: 29429046 DOI: 10.1007/s10865-018-9914-y] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Accepted: 01/23/2018] [Indexed: 12/29/2022]
Abstract
Yoga is an ancient mind-body practice that is increasingly recognized to have health benefits in a variety of clinical and non-clinical conditions. This systematic review summarizes the findings of randomized controlled trials examining the effects of yoga on immune system functioning which is imperative to justify its application in the clinic. Fifteen RCTs were eligible for the review. Even though the existing evidence is not entirely consistent, a general pattern emerged suggesting that yoga can downregulate pro-inflammatory markers. In particular, the qualitative evaluation of RCTs revealed decreases in IL-1beta, as well as indications for reductions in IL-6 and TNF-alpha. These results imply that yoga may be implemented as a complementary intervention for populations at risk or already suffering from diseases with an inflammatory component. Beyond this, yoga practice may exert further beneficial effects by enhancing cell-mediated and mucosal immunity. It is hypothesized that longer time spans of yoga practice are required to achieve consistent effects especially on circulating inflammatory markers. Overall, this field of investigation is still young, hence the current body of evidence is small and for most immune parameters, more research is required to draw distinct conclusions.
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130
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Koga AY, Pereira AV, Lipinski LC, Oliveira MRP. Evaluation of wound healing effect of alginate films containing Aloe vera (Aloe barbadensis Miller) gel. J Biomater Appl 2018; 32:1212-1221. [DOI: 10.1177/0885328218754615] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Adriana Y Koga
- Department of Pharmaceutical Sciences, State University of Ponta Grossa, Paraná, Brazil
| | - Airton V Pereira
- Department of Pharmaceutical Sciences, State University of Ponta Grossa, Paraná, Brazil
| | - Leandro C Lipinski
- Department of Medicine, State University of Ponta Grossa, Paraná, Brazil
| | - Marcia RP Oliveira
- Department of Structural, Molecular and Genetic Biology, State University of Ponta Grossa, Paraná, Brazil
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Topical use and systemic action of green and roasted coffee oils and ground oils in a cutaneous incision model in rats (Rattus norvegicus albinus). PLoS One 2017; 12:e0188779. [PMID: 29236720 PMCID: PMC5728535 DOI: 10.1371/journal.pone.0188779] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2017] [Accepted: 11/13/2017] [Indexed: 12/17/2022] Open
Abstract
Introduction Wounds are a common health problem. Coffee is widely consumed and its oil contains essential fatty acids. We evaluated the local (skin) and systemic effects associated with the topical use of coffee oils in rats. Methods Punch skin wounds (6 mm) incisions were generated on the backs of 75 rats. Saline (SS), mineral oil (MO), green coffee oil (GCO), roasted coffee oil (RCO), green coffee ground oil (GCGO) or roasted coffee ground oil (RCGO) were topically applied to the wounds. Healing was evaluated by visual and histological/morphometric optical microscopy examination; second harmonics generation (SHG) microscopy, wound tissue q-PCR (values in fold-change) and blood serum (ELISA, values in pg/mL). Results RCO treated animals presented faster wound healing (0.986 vs. 0.422), higher mRNA expression of IGF-1 (2.78 vs. 1.00, p = 0.01), IL-6 (10.72 vs. 1.00, p = 0.001) and IL-23 (4.10 vs. 1.2, p = 0.05) in early stages of wound healing; higher IL-12 (3.32 vs. 1.00, p = 0.05) in the later stages; and lower serum levels of IFN-γ (11.97 vs. 196.45, p = 0.01). GCO treatment led to higher mRNA expression of IL-6 (day 2: 7.94 vs. 1.00, p = 0.001 and day 4: 6.90 vs. 1.00, p = 0.01) and IL-23 (7.93 vs. 1.20, p = 0.001) in the early stages. The RCO treatment also produced higher serum IFN-α levels throughout the experiment (day 2: 52.53 vs. 21.20; day 4: 46.98 vs.21.56; day 10: 83.61 vs. 25.69, p = 0.05) and lower levels of IL-4 (day 4: 0.9 vs.13.36, p = 0.01), adiponectin (day 10: 8,367.47 vs. 16,526.38, p = 0.001) and IFN-γ (day 4: 43.03 vs.196.45, p = 0.05). The SHG analysis showed a higher collagen density in the RCO and GCO treatments (p = 0.05). Conclusion Topical treatment with coffee oils led to systemic actions and faster wound healing in rats. Further studies should be performed are necessary to assess the safety of topical vegetal oil use for skin lesions.
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Estevão LRM, Simões RS, Cassini-Vieira P, Canesso MCC, Barcelos LDS, Rachid MA, Câmara CAGD, Evêncio-Neto J. Schinus terebinthifolius Raddi ( Aroeira) leaves oil attenuates inflammatory responses in cutaneous wound healing in mice 1. Acta Cir Bras 2017; 32:726-735. [PMID: 29019590 DOI: 10.1590/s0102-865020170090000005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2017] [Accepted: 08/22/2017] [Indexed: 12/14/2022] Open
Abstract
PURPOSE To investigated the inflammatory, angiogenic and fibrogenic activities of the Schinus terebinthifolius Raddi leaves oil (STRO) on wound healing. METHODS The excisional wound healing model was used to evaluate the effects of STRO. The mice were divided into two groups: Control, subjected to vehicle solution (ointment lanolin/vaseline base), or STRO- treated group, administered topically once a day for 3, 7 and 14 days post-excision. We evaluated the macroscopic wound closure rate; the inflammation was evaluated by leukocytes accumulation and cytokine levels in the wounds. The accumulation of neutrophil and macrophages in the wounds were determined by assaying myeloperoxidase and N-acetyl-β-D-glucosaminidase activities. The levels of TNF-α, CXCL-1 and CCL-2 in wound were evaluated by ELISA assay. Angiogenesis and collagen fibers deposition were evaluated histologically. RESULTS We observed that macroscopic wound closure rate was improved in wounds from STRO-group than Control-group. The wounds treated with STRO promoted a reduction in leucocyte accumulation and in pro-inflammatory cytokine. Moreover, STRO treatment increased significantly the number of blood vessels and collagen fibers deposition, as compared to control group. CONCLUSION Topical application of STRO display anti-inflammatory and angiogenic effects, as well as improvement in collagen replacement, suggesting a putative use of this herb for the development of phytomedicines to treat inflammatory diseases, including wound healing.
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Affiliation(s)
- Lígia Reis Moura Estevão
- PhD, Department of Morphology and Animal Physiology, Universidade Federal Rural de Pernambuco (UFRPE), Recife-PE, Brazil. Acquisition, analysis and interpretation of data; manuscript writing
| | - Ricardo Santos Simões
- PhD, Department of Morphology and Genetics, Universidade Federal de São Paulo (UNIFESP), Brazil. Acquisition of data, histopathological examinations, manuscript preparation, critical revision
| | - Puebla Cassini-Vieira
- PhD, Department of Morphology and Animal Physiology, Universidade Federal Rural de Pernambuco (UFRPE), Recife-PE, Brazil. Acquisition, analysis and interpretation of data; manuscript writing
| | - Maria Cecilia Campos Canesso
- PhD, Department of Morphology and Animal Physiology, Universidade Federal Rural de Pernambuco (UFRPE), Recife-PE, Brazil. Acquisition, analysis and interpretation of data; manuscript writing
| | - Lucíola da Silva Barcelos
- PhD, Department of Morphology and Animal Physiology, Universidade Federal Rural de Pernambuco (UFRPE), Recife-PE, Brazil. Acquisition, analysis and interpretation of data; manuscript writing
| | - Milene Alvarenga Rachid
- PhD, Department of Morphology and Animal Physiology, Universidade Federal Rural de Pernambuco (UFRPE), Recife-PE, Brazil. Acquisition, analysis and interpretation of data; manuscript writing
| | | | - Joaquim Evêncio-Neto
- Full Professor, Department of Morphology and Animal Physiology, UFRPE, Recife-PE, Brazil. Conception and design of the study, manuscript preparation
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Witherel CE, Yu T, Concannon M, Dampier W, Spiller KL. Immunomodulatory Effects of Human Cryopreserved Viable Amniotic Membrane in a Pro-Inflammatory Environment In Vitro. Cell Mol Bioeng 2017; 10:451-462. [PMID: 29225709 PMCID: PMC5720175 DOI: 10.1007/s12195-017-0494-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 07/07/2017] [Indexed: 12/14/2022] Open
Abstract
INTRODUCTION Chronic wounds remain a major clinical challenge. Human cryopreserved viable amniotic membrane (hCVAM) is among the most successful therapies, but the mechanisms of action remain loosely defined. Because proper regulation of macrophage behavior is critical for wound healing with biomaterial therapies, we hypothesized that hCVAM would positively regulate macrophage behavior in vitro, and that soluble factors released from the hCVAM would be important for this effect. MATERIALS AND METHODS Primary human pro-inflammatory (M1) macrophages were seeded directly onto intact hCVAM or cultured in separation via transwell inserts (Soluble Factors) in the presence of pro-inflammatory stimuli (interferon-γ and lipopolysaccharide) to simulate the chronic wound environment. Macrophages were characterized after 1 and 6 days using multiplex gene expression analysis of 37 macrophage phenotype- and angiogenesis-related genes via NanoString™, and protein content from conditioned media collected at days 1, 3 and 6 was analyzed via enzyme linked immunosorbent assays. RESULTS AND DISCUSSION Gene expression analysis showed that Soluble Factors promoted significant upregulation of pro-inflammatory marker IL1B on day 1 yet downregulation of TNF on day 6 compared to the M1 macrophage control. In contrast, intact hCVAM, which includes both extracellular matrix, viable cells, and soluble factors, promoted downregulation of pro-inflammatory markers TNF, CCL5 and CCR7 on day 1 and endothelial receptor TIE1 on day 6, and upregulation of the anti-inflammatory marker IL10 on day 6 compared to the M1 Control. Other genes related to inflammation and angiogenesis (MMP9, VEGF, SPP1, TGFB1, etc.) were differentially regulated between the Soluble Factors and intact hCVAM groups at both time points, though they were not expressed at significantly different levels compared to the M1 Control. Interestingly, Soluble Factors promoted increased secretion of the proinflammatory cytokine tumor necrosis factor-α (TNF-α), while direct contact with hCVAM inhibited secretion of TNF, relative to the M1 Control. Both Soluble Factors and intact hCVAM inhibited secretion of MMP9 and VEGF, pro-inflammatory proteins that are critical for angiogenesis and remodeling, compared to the M1 Control, with intact hCVAM having a stronger effect. CONCLUSIONS In a simulated pro-inflammatory environment, intact hCVAM has distinct anti-inflammatory effects on primary human macrophages, and direct macrophage contact with intact hCVAM is required for these effects. These findings are important for the design of next generation immunomodulatory biomaterials for wound repair and regenerative medicine that may include living cells, soluble factors, or a controlled drug delivery system.
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Affiliation(s)
- Claire E. Witherel
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104 USA
| | - Tony Yu
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104 USA
| | - Mark Concannon
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104 USA
| | - Will Dampier
- Department of Microbiology and Immunology, Drexel University College of Medicine, Philadelphia, PA USA
| | - Kara L. Spiller
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104 USA
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Mei H, Yao P, Wang S, Li N, Zhu T, Chen X, Yang M, Zhuo S, Chen S, Wang JM, Wang H, Xie D, Wu Y, Le Y. Chronic Low-Dose Cadmium Exposure Impairs Cutaneous Wound Healing With Defective Early Inflammatory Responses After Skin Injury. Toxicol Sci 2017; 159:327-338. [PMID: 28666365 PMCID: PMC6256962 DOI: 10.1093/toxsci/kfx137] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Impairment of the immune system is a developing concern in evaluating the toxicity of cadmium (Cd). In the present study, we investigated if Cd could impair cutaneous wound healing through interfering with inflammation after injury. We found that exposure of mice to CdCl2 through drinking water at doses of 10, 30, and 50 mg/l for 8 weeks significantly impaired cutaneous wound healing. Chronic 30 mg/l CdCl2 treatment elevated murine blood Cd level comparable to that of low dose Cd-exposed humans, had no effect on blood total and differential leukocyte counts, but reduced neutrophil infiltration, chemokines (CXCL1 and CXCL2), and proinflammatory cytokines (TNFα, IL-1β, and IL-6) expression in wounded tissue at early stage after injury. Wounded tissue homogenates from CdCl2-treated mice had lower chemotactic activity for neutrophils than those from untreated mice. Mechanistic studies showed that chronic Cd treatment suppressed ERK1/2 and NF-κB p65 phosphorylation in wounded tissue at early stage after injury. Compared with neutrophils isolated from untreated mice, neutrophils from CdCl2 treated mice and normal neutrophils treated with CdCl2 invitro both had lower chemotactic response, calcium mobilization and ERK1/2 phosphorylation upon chemoattractant stimulation. Collectively, our study indicate that chronic low-dose Cd exposure impaired cutaneous wound healing by reducing neutrophil infiltration through inhibiting chemokine expression and neutrophil chemotactic response, and suppressing proinflammatory cytokine expression. Cd may suppress chemokine and proinflammatory expression through inactivating ERK1/2 and NF-κB, and inhibit neutrophil chemotaxis by attenuating calcium mobilization and ERK1/2 phosphorylation in response to chemoattractants.
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Affiliation(s)
- Hong Mei
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Pengle Yao
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Shanshan Wang
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Na Li
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Tengfei Zhu
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Xiaofang Chen
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Mengmei Yang
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Shu Zhuo
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Shiting Chen
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
| | - Ji Ming Wang
- Laboratory of Molecular Immunoregulation, Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, Frederick, Maryland 21702
| | - Hui Wang
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
- Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, China
| | - Dong Xie
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
- Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, China
| | - Yongning Wu
- Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, China
| | - Yingying Le
- Key Laboratory of Food Safety Research, Institute for Nutritional Sciences, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences; University of the Chinese Academy of Sciences, Shanghai 200031, China
- Key Laboratory of Food Safety Risk Assessment, Ministry of Health, Beijing 100021, China
- Institute for Hand Surgery, Ruihua Affiliated Hospital of Soochow University, Suzhou 215104, China
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Auger C, Samadi O, Jeschke MG. The biochemical alterations underlying post-burn hypermetabolism. Biochim Biophys Acta Mol Basis Dis 2017; 1863:2633-2644. [PMID: 28219767 PMCID: PMC5563481 DOI: 10.1016/j.bbadis.2017.02.019] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 01/22/2017] [Accepted: 02/15/2017] [Indexed: 12/12/2022]
Abstract
A severe burn can trigger a hypermetabolic state which lasts for years following the injury, to the detriment of the patient. The drastic increase in metabolic demands during this phase renders it difficult to meet the body's nutritional requirements, thus increasing muscle, bone and adipose catabolism and predisposing the patient to a host of disorders such as multi-organ dysfunction and sepsis, or even death. Despite advances in burn care over the last 50 years, due to the multifactorial nature of the hypermetabolic phenomenon it is difficult if not impossible to precisely identify and pharmacologically modulate the biological mediators contributing to this substantial metabolic derangement. Here, we discuss biomarkers and molecules which play a role in the induction and mediation of the hypercatabolic condition post-thermal injury. Furthermore, this thorough review covers the development of the factors released after burns, how they induce cellular and metabolic dysfunction, and how these factors can be targeted for therapeutic interventions to restore a more physiological metabolic phenotype after severe thermal injuries. This article is part of a Special Issue entitled: Immune and Metabolic Alterations in Trauma and Sepsis edited by Dr. Raghavan Raju.
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Affiliation(s)
- Christopher Auger
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, M4N 3M5, Canada
| | - Osai Samadi
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, M4N 3M5, Canada
| | - Marc G Jeschke
- Ross Tilley Burn Centre, Sunnybrook Health Sciences Centre, Toronto, Ontario, M4N 3M5, Canada.
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Stana J, Stergar J, Gradišnik L, Flis V, Kargl R, Fröhlich E, Stana Kleinschek K, Mohan T, Maver U. Multilayered Polysaccharide Nanofilms for Controlled Delivery of Pentoxifylline and Possible Treatment of Chronic Venous Ulceration. Biomacromolecules 2017; 18:2732-2746. [DOI: 10.1021/acs.biomac.7b00523] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jan Stana
- Schön Klinik Vogtareuth, Department of Vascular
and Endovascular Surgery, Krankenhausstraße 20, 83569 Vogtareuth, Germany
| | - Janja Stergar
- University of Maribor, Faculty of Medicine, Institute
of Biomedical Sciences, Taborska ulica 8, SI-2000 Maribor, Slovenia
| | - Lidija Gradišnik
- University of Maribor, Faculty of Medicine, Institute
of Biomedical Sciences, Taborska ulica 8, SI-2000 Maribor, Slovenia
| | - Vojko Flis
- University Medical Centre Maribor, Division of Surgery,
Department of Vascular Surgery, Ljubljanka ulica 5, SI-2000 Maribor, Slovenia
| | - Rupert Kargl
- University of Maribor, Faculty of Mechanical Engineering,
Laboratory for Characterisation and Processing of Polymers, Smetanova 17, SI-2000 Maribor, Slovenia
| | - Eleonore Fröhlich
- Medical University of Graz, Center for Medical Research,
Core Facility Microscopy, Stiftingtalstraße 24, 8010 Graz, Austria
| | - Karin Stana Kleinschek
- University of Maribor, Faculty of Mechanical Engineering,
Laboratory for Characterisation and Processing of Polymers, Smetanova 17, SI-2000 Maribor, Slovenia
| | - Tamilselvan Mohan
- University of Graz, Institute of Chemistry, Heinrichstrasse 28, 8010 Graz, Austria
| | - Uroš Maver
- University of Maribor, Faculty of Medicine, Institute
of Biomedical Sciences, Taborska ulica 8, SI-2000 Maribor, Slovenia
- University of Maribor, Faculty of Medicine, Department
of Pharmacology, Taborska
ulica 8, SI-2000 Maribor, Slovenia
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Mai B, Gao Y, Li M, Wang X, Zhang K, Liu Q, Xu C, Wang P. Photodynamic antimicrobial chemotherapy for Staphylococcus aureus and multidrug-resistant bacterial burn infection in vitro and in vivo. Int J Nanomedicine 2017; 12:5915-5931. [PMID: 28860757 PMCID: PMC5566361 DOI: 10.2147/ijn.s138185] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Background and objectives Antibiotic resistance has emerged as one of the most important determinants of outcome in patients with serious infections, along with the virulence of the underlying pathogen. Photodynamic antimicrobial chemotherapy (PACT) has been proposed as an alternative approach for the inactivation of bacteria. This study aims to evaluate the antibacterial effect of sinoporphyrin sodium (DVDMS)-mediated PACT on Staphylococcus aureus and multidrug resistant S. aureus in vitro and in vivo. Materials and methods Bacteria were incubated with DVDMS and exposed to treatment with light. After PACT treatment, colony-forming units were counted to estimate the bactericidal effect. Intracellular reactive oxygen-species production was detected by flow cytometry. Flow cytometry and fluorescence-microscopy detection of bacterial cell-membrane permeability. Enzyme-linked immunosorbent assays were used to determine expression of VEGF, TGFβ1, TNFα, IL6, and bFGF factors in burn infection. Results DVDMS-PACT effectively killed bacterial proliferation. Intracellular ROS levels were enhanced obviously in the PACT-treatment group. SYTO 9 and propidium iodide staining showed a decrease in the ratio of green:red fluorescence intensity in the PACT-treatment group in comparison to the control group. Enzyme-linked immunosorbent-assay results revealed that in the healing process, the expression of bFGF, TGFβ1, and VEGF in the treatment group were higher than in the control group, which inhibited inflammation-factor secretion. In addition, skin-tissue bacteria were reduced after treatment. Conclusion These results indicate that DVDMS-PACT presents significant bactericidal activity and promotes wound healing after burn infections.
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Affiliation(s)
- Bingjie Mai
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education.,National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, College of Life Sciences, Shaanxi Normal University, Xi'an
| | - Yiru Gao
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education.,National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, College of Life Sciences, Shaanxi Normal University, Xi'an
| | - Min Li
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education.,National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, College of Life Sciences, Shaanxi Normal University, Xi'an
| | - Xiaobing Wang
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education.,National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, College of Life Sciences, Shaanxi Normal University, Xi'an
| | - Kun Zhang
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education.,National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, College of Life Sciences, Shaanxi Normal University, Xi'an
| | - Quanhong Liu
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education.,National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, College of Life Sciences, Shaanxi Normal University, Xi'an
| | - Chuanshan Xu
- School of Chinese Medicine, Faculty of Medicine, Chinese University of Hong Kong, Hong Kong, China
| | - Pan Wang
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education.,National Engineering Laboratory for Resource Development of Endangered Crude Drugs in Northwest China, College of Life Sciences, Shaanxi Normal University, Xi'an
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138
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Zhu Y, Zhang L, Lu Q, Gao Y, Cai Y, Sui A, Su T, Shen X, Xie B. Identification of different macrophage subpopulations with distinct activities in a mouse model of oxygen-induced retinopathy. Int J Mol Med 2017; 40:281-292. [PMID: 28627621 PMCID: PMC5504985 DOI: 10.3892/ijmm.2017.3022] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2016] [Accepted: 04/05/2017] [Indexed: 02/06/2023] Open
Abstract
The aim of the present study was to characterize the phenotypic shift, quantity and role changes in different subgroups of retinal macrophages in a mouse model of oxygen-induced retinopathy (OIR). The mRNA expression levels of macrophage M1 and M2 subgroup marker genes and polarization-associated genes were analyzed by RT-qPCR. The number of M1 and M2 macrophages in our mouse model of OIR was analyzed by flow cytometry at different time points during the progression of OIR. Immunofluorescence whole mount staining of the retinas of mice with OIR was performed at different time points to examine the influx of macrophages, as well as the morphological characteristics and roles of M1 and M2 macrophages. An increased number of macrophages was recruited during the progression of angiogenesis in the retinas of mice with OIR due to the pro-inflammatory microenvironment containing high levels of cell adhesion and leukocyte transendothelial migration molecules. RT-qPCR and flow cytometric analysis at different time points revealed a decline in the number of M1 cells from a significantly high level at post-natal day (P)13 to a relatively normal level at P21, as well as an increase in the number of M2 cells from P13 to P21 in the mice with OIR, implicating a shift of macrophage polarization towards the M2 subtype. Immunofluorescence staining suggested that the M1 cells interacted with endothelial tip cells at the vascular front, while M2 cells embraced the emerging vessels and bridged the neighboring vessel sprouts. Thus, our data indicate that macrophages play an active role in OIR by contributing to the different steps of neovascularization. Our findings indicate that tissue macrophages may be considered as a potential target for the anti-angiogenic therapy of ocular neovascularization disease.
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Affiliation(s)
- Yanji Zhu
- Department of Ophthalmology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Ling Zhang
- Department of Ophthalmology, Johns Hopkins University School of Medicine, Baltimore, MD 21287-9277, USA
| | - Qing Lu
- Department of Ophthalmology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Yushuo Gao
- Department of Ophthalmology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Yujuan Cai
- Department of Ophthalmology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Ailing Sui
- Department of Ophthalmology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Ting Su
- Department of Ophthalmology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Xi Shen
- Department of Ophthalmology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
| | - Bing Xie
- Department of Ophthalmology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, P.R. China
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139
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Zhao JM, Jin ZZ, Zhao QZ. The preventive effect of ambroxol hydrochloride chitosan on postoperative intraperitoneal adhesion formation in a rat model. Acta Chir Belg 2017. [PMID: 28636473 DOI: 10.1080/00015458.2017.1287395] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND This study aimed to investigate the effects of ambroxol hydrochloride chitosan reduced the degree of peritoneal adhesion. METHODS A total of 120 Sprague-Dawley (SD) rats were experimented, group A: the damaged peritoneal was covered with ambroxol hydrochloride chitosan, group B: chitosan membrane only, group C: nothing. Enzyme-linked immunosorbent assay (ELISA), western blotting, and immunohistochemistry (IHC) were used to observe the expression of TNF-α and NF-κB p65. RESULTS TNF-α and NF-κB p65 in group A significantly decreased in comparison with the controls. IHC showed TNF-α and NF-κB p65 were significantly down-regulated in group A. Adhesion grade in the treatment group was significantly lower than in controls. CONCLUSION Ambroxol hydrochloride chitosan reduced the degree of peritoneal adhesion.
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Affiliation(s)
- Jin-Ming Zhao
- Department of 98 Grads, China Medical University, Shenyang, China
| | - Zhi-Zhong Jin
- Department of 98 Grads, China Medical University, Shenyang, China
| | - Qi-Zhong Zhao
- Department of Emergency, Affiliated First Hospital, China Medical University, Shenyang, China
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140
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Hesketh M, Sahin KB, West ZE, Murray RZ. Macrophage Phenotypes Regulate Scar Formation and Chronic Wound Healing. Int J Mol Sci 2017; 18:ijms18071545. [PMID: 28714933 PMCID: PMC5536033 DOI: 10.3390/ijms18071545] [Citation(s) in RCA: 468] [Impact Index Per Article: 66.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2017] [Revised: 07/13/2017] [Accepted: 07/16/2017] [Indexed: 12/21/2022] Open
Abstract
Macrophages and inflammation play a beneficial role during wound repair with macrophages regulating a wide range of processes, such as removal of dead cells, debris and pathogens, through to extracellular matrix deposition re-vascularisation and wound re-epithelialisation. To perform this range of functions, these cells develop distinct phenotypes over the course of wound healing. They can present with a pro-inflammatory M1 phenotype, more often found in the early stages of repair, through to anti-inflammatory M2 phenotypes that are pro-repair in the latter stages of wound healing. There is a continuum of phenotypes between these ranges with some cells sharing phenotypes of both M1 and M2 macrophages. One of the less pleasant consequences of quick closure, namely the replacement with scar tissue, is also regulated by macrophages, through their promotion of fibroblast proliferation, myofibroblast differentiation and collagen deposition. Alterations in macrophage number and phenotype disrupt this process and can dictate the level of scar formation. It is also clear that dysregulated inflammation and altered macrophage phenotypes are responsible for hindering closure of chronic wounds. The review will discuss our current knowledge of macrophage phenotype on the repair process and how alterations in the phenotypes might alter wound closure and the final repair quality.
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Affiliation(s)
- Mark Hesketh
- The Institute for Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane QLD 4059, Australia.
| | - Katherine B Sahin
- The Institute for Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane QLD 4059, Australia.
| | - Zoe E West
- The Institute for Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane QLD 4059, Australia.
| | - Rachael Z Murray
- The Institute for Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane QLD 4059, Australia.
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142
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Berksoy Hayta S, Durmuş K, Altuntaş EE, Yildiz E, Hisarciklıo M, Akyol M. The reduction in inflammation and impairment in wound healing by using strontium chloride hexahydrate. Cutan Ocul Toxicol 2017; 37:24-28. [PMID: 28468507 DOI: 10.1080/15569527.2017.1326497] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
BACKGROUND Numerous growth factors, cytokine, mitogen and chemotactic factors are involved in wound healing. Even though inflammation is important for the stimulation of proliferative phase, excessive inflammation also causes impairment in wound healing. Strontium salts suppress keratinocyte-induced TNF-alpha and interleukin-1 and interleukin-6 in in vitro cultures. This study was conducted to determine the effects of administration of topical strontium chloride hexahydrate on wound healing through TNF-alpha and TGF-beta in surgical wound healing model of in-vivo rat skin. MATERIAL AND METHODS Twenty-four rats were used in the study. After approximately 2 cm cutaneous-subcutaneous incision was horizontally carried out on the mid-neckline of the rats, the incision was again closed using 2.0 vicryl. The rats were assigned into three groups including eight rats in each group. Placebo emollient ointment and also the ointments, which were containing 5% and 10% strontium chloride hexahydrate and were prepared at the same base with placebo ointment, were administered to the groups by a blind executor twice a day for a week. At the end of seventh day, the rats were sacrificed and cutaneous and subcutaneous tissue of their wound site was resected for histopathological examination. Scoring of histopathological wound healing and scoring of tissue TNF-alpha and TGF-beta level with immunohistochemical staining were performed. RESULTS The groups, to which both 5% and 10% strontium chloride hexahydrate was administered, had lower immunohistochemical TNF-alpha levels and histopathological wound scores compared to controls, which was statistically significant (p < 0.05). CONCLUSION Strontium chloride hexahydrate can lead to impairment in wound healing by suppressing inflammation through TNF-alpha.
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Affiliation(s)
| | - Kasim Durmuş
- b Department of Otolaryngology, Faculty of Medicine , and
| | | | - Esin Yildiz
- c Department of Pathology, Faculty of Medicine , Cumhuriyet University , >Sivas > , Turkey
| | | | - Melih Akyol
- a Deparment of Dermatology, Faculty of Medicine
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143
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Kang MH, Choi S, Kim BH. Skin Wound Healing Effects and Action Mechanism of Acai Berry Water Extracts. Toxicol Res 2017; 33:149-156. [PMID: 28503264 PMCID: PMC5426502 DOI: 10.5487/tr.2017.33.2.149] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 02/27/2017] [Accepted: 03/02/2017] [Indexed: 11/20/2022] Open
Abstract
The purpose of this study was to investigate the wound healing effect of acai berry water extracts (ABWE) and a possible underlying mechanism involved in its action using various in vitro and in vivo models. The wound healing effect of ABWE was evaluated by migration assay using HS68 fibroblast cells. In addition, its effect on mRNA expression of procollagen, fibronectin, and MMP-1 was determined. Moreover, the wound healing effect of ABWE was evaluated in in vivo wound models through macroscopic and microscopic observation. In addition, mRNA expression levels of wound related genes were determined. Results revealed that ABWE was not cytotoxic. It increased migration of HS68 fibroblast cells. ABWE increased mRNA expression levels of fibronectin but decreased the mRNA expression levels of MMP-1. ABWE also showed significantly potent wound healing effect in vivo based on macroscopic and histopathological observation and mRNA expression evaluation for wound related genes. Taken together, our results indicated that ABWE might have potential as a wound healing agent.
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Affiliation(s)
- Mi Hyun Kang
- Major in Public Health, Faculty of Food and Health Sciences, Keimyung University, Daegu, Korea
| | - Seunghye Choi
- College of Pharmacy, Ewha Womans University, Seoul, Korea
| | - Bae-Hwan Kim
- Major in Public Health, Faculty of Food and Health Sciences, Keimyung University, Daegu, Korea
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144
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Broszczak DA, Sydes ER, Wallace D, Parker TJ. Molecular Aspects of Wound Healing and the Rise of Venous Leg Ulceration: Omics Approaches to Enhance Knowledge and Aid Diagnostic Discovery. Clin Biochem Rev 2017; 38:35-55. [PMID: 28798504 PMCID: PMC5548371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Chronic wounds, in particular venous leg ulcers (VLU), represent a substantial burden for economies, healthcare systems and societies worldwide. This burden is exacerbated by the recalcitrant nature of these wounds, despite best practice, evidence-based care, which substantially reduces the quality of life of patients. Furthermore, co-morbidities such as diabetes and cardiovascular disease within ageing populations further contribute to the increasing prevalence in developed countries. This review provides an overview of the literature concerning the cellular and molecular mechanisms of wound healing and aspects where this process fails, resulting in a chronic wound. VLU may arise from chronic venous disease, which presents with many clinical manifestations and can lead to a highly complex disease state. Efforts to comprehend this state using various omics based approaches have delivered some insight into the underlying biology of chronic wounds and revealed markers of differentiation at the genomic, transcriptomic, proteomic and metabolomic levels. Furthermore, this review outlines the array of analytical tools and approaches that have been utilised for capturing multivariate data at each of these molecular levels. Future developments in spatiotemporal analysis of wounds along with the integration of multiple omics datasets may provide much needed information on the key molecules that drive wound chronicity. Such biomarkers have the potential to be developed into clinically relevant diagnostic tools to aid in personalised wound management.
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Affiliation(s)
- Daniel A Broszczak
- School of Science, Faculty of Health Sciences, Australian Catholic University, Banyo, Qld 4014, Australia
- Tissue Repair and Translational Physiology Program, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Qld 4059, Australia
| | - Elizabeth R Sydes
- School of Science, Faculty of Health Sciences, Australian Catholic University, Banyo, Qld 4014, Australia
- Tissue Repair and Translational Physiology Program, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Qld 4059, Australia
| | - Daniel Wallace
- Iron and Cancer Research Laboratory, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Qld 4059, Australia
| | - Tony J Parker
- Tissue Repair and Translational Physiology Program, Institute of Health and Biomedical Innovation, School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Qld 4059, Australia
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Mirkov I, Popov Aleksandrov A, Demenesku J, Ninkov M, Mileusnic D, Kataranovski D, Kataranovski M. Warfarin affects acute inflammatory response induced by subcutaneous polyvinyl sponge implantation in rats. Cutan Ocul Toxicol 2017; 36:283-288. [DOI: 10.1080/15569527.2016.1275664] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Ivana Mirkov
- Ecology Department, Institute for Biological Research “Sinisa Stankovic”, University of Belgrade, Belgrade, Serbia,
| | - Aleksandra Popov Aleksandrov
- Ecology Department, Institute for Biological Research “Sinisa Stankovic”, University of Belgrade, Belgrade, Serbia,
| | - Jelena Demenesku
- Ecology Department, Institute for Biological Research “Sinisa Stankovic”, University of Belgrade, Belgrade, Serbia,
| | - Marina Ninkov
- Ecology Department, Institute for Biological Research “Sinisa Stankovic”, University of Belgrade, Belgrade, Serbia,
| | - Dina Mileusnic
- Ecology Department, Institute for Biological Research “Sinisa Stankovic”, University of Belgrade, Belgrade, Serbia,
| | - Dragan Kataranovski
- Ecology Department, Institute for Biological Research “Sinisa Stankovic”, University of Belgrade, Belgrade, Serbia,
- Institute of Zoology, Faculty of Biology, University of Belgrade, Belgrade, Serbia, and
| | - Milena Kataranovski
- Ecology Department, Institute for Biological Research “Sinisa Stankovic”, University of Belgrade, Belgrade, Serbia,
- Institute of Physiology and Biochemistry, Faculty of Biology, University of Belgrade, Belgrade, Serbia
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Dong MW, Li M, Chen J, Fu TT, Lin KZ, Ye GH, Han JG, Feng XP, Li XB, Yu LS, Fan YY. Activation of α7nAChR Promotes Diabetic Wound Healing by Suppressing AGE-Induced TNF-α Production. Inflammation 2017; 39:687-99. [PMID: 26650489 DOI: 10.1007/s10753-015-0295-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Diabetes frequently presents accumulation of advanced glycation end products (AGEs), which might induce excessive TNF-α production from macrophages to cause impaired wound healing. Recent studies have shown that activation of α7 nicotinic acetylcholine receptor (α7nAChR) on macrophages efficiently suppressed TNF-α synthesis. The aim of this study was to investigate the accumulation of AGEs in the wounds and determine whether PNU282987, an α7nAChR agonist, can improve wound repair by inhibiting AGE-mediated TNF-α production in a streptozotocin (STZ)-induced diabetic mouse model. Animals were assigned into four groups: wounded control group, wounded diabetic group, wounded diabetic group treated intraperitoneally with PNU282987, or wounded diabetic group treated intraperitoneally with vehicle. Compared with the non-diabetic control mice, the diabetic mice exhibited delayed wound healing that was characterized by elevated accumulation of AGEs, increased TNF-α level and macrophage infiltration, and decreased fibroblast number and collagen deposition at the late stage of repair. Besides, macrophages of diabetic wounds showed expression of α7nAChR. During late repair, PNU282987 treatment of diabetic mice significantly reduced the level of TNF-α, accelerated wound healing, and elevated fibroblast number and collagen deposition. To investigate the cellular mechanism of these observations, RAW 264.7 cells, a macrophage cell line, were incubated with AGEs in the presence or absence of PNU282987. TNF-α production from AGE-stimulated macrophages was significantly decreased by PNU282987 in a dose-dependent manner. Furthermore, PNU282987 significantly inhibited AGE-induced nuclear factor-κB (NF-κB) activation and receptor for AGE (RAGE) expression. These results strongly suggest that activating α7nAChR can promote diabetic wound healing by suppressing AGE-induced TNF-α production, which may be closely associated with the blockage of NF-κB activation in macrophages.
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Affiliation(s)
- Miao-Wu Dong
- Center of Basic Medical Experiment, School of Basic Medical Science, Wenzhou Medical University, Higher Education District, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Ming Li
- Renji College, Wenzhou Medical University, Higher Education District, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Jie Chen
- Renji College, Wenzhou Medical University, Higher Education District, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Tong-Tong Fu
- Renji College, Wenzhou Medical University, Higher Education District, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Ke-Zhi Lin
- Center of Basic Medical Experiment, School of Basic Medical Science, Wenzhou Medical University, Higher Education District, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Guang-Hua Ye
- Department of Forensic Medicine, School of Basic Medical Science, Wenzhou Medical University, Higher Education District, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Jun-Ge Han
- Department of Forensic Medicine, School of Basic Medical Science, Wenzhou Medical University, Higher Education District, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Xiang-Ping Feng
- Department of Forensic Medicine, School of Basic Medical Science, Wenzhou Medical University, Higher Education District, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Xing-Biao Li
- Department of Forensic Medicine, School of Basic Medical Science, Wenzhou Medical University, Higher Education District, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Lin-Sheng Yu
- Department of Forensic Medicine, School of Basic Medical Science, Wenzhou Medical University, Higher Education District, Wenzhou, Zhejiang Province, 325035, People's Republic of China
| | - Yan-Yan Fan
- Department of Forensic Medicine, School of Basic Medical Science, Wenzhou Medical University, Higher Education District, Wenzhou, Zhejiang Province, 325035, People's Republic of China.
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Klinkert K, Whelan D, Clover AJP, Leblond AL, Kumar AHS, Caplice NM. Selective M2 Macrophage Depletion Leads to Prolonged Inflammation in Surgical Wounds. Eur Surg Res 2017; 58:109-120. [PMID: 28056458 DOI: 10.1159/000451078] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 09/26/2016] [Indexed: 11/19/2022]
Abstract
BACKGROUND A prolonged inflammatory phase is seen in aberrant wound healing and in chronic wounds. Macrophages are central to wound healing. Distinct macrophage subtypes have differing roles both in initial inflammation and in later tissue repair. Broadly, these cells can be divided into M1 and M2 macrophages. M2 macrophage proliferation and differentiation is regulated by colony-stimulating factor 1 (CSF-1) signalling and can be blocked by GW2580, a competitive cFMS kinase inhibitor, thereby allowing for analysis of the effect of M2 blockade on progression of surgical wounds. MATERIALS AND METHODS Macrophage Fas-induced apoptosis (MaFIA) transgenic mice with a macrophage-specific promoter used to express green fluorescent protein (GFP) were used to allow for cell tracking. The animals were treated by oral gavage with GW2580. Surgical wounds were created and harvested after 2 weeks for analysis. RESULTS GW2580-treated mice had significantly more GFP+ cells in the surgical scar than vehicle-treated animals (GW2580, 68.0 ± 3.1%; vehicle, 42.8 ± 1.7%; p < 0.001), and GW2580 treatment depleted CD206+ M2 macrophages in the scar (GW2580, 1.4%; vehicle, 19.3%; p < 0.001). Treated animals showed significantly higher numbers of neutrophils (vehicle, 18.0%; GW2580, 51.3%; p < 0.01) and M1 macrophages (vehicle, 3.8%; GW2580, 12.8%; p < 0.01) in the scar compared to vehicle-treated animals. The total collagen content in the area of the scar was decreased in animals treated with GW2580 as compared to those treated with vehicle alone (GW2580, 67.1%; vehicle, 79.9%; p < 0.005). CONCLUSIONS Depletion of M2 macrophages in surgical wounds via CSF-1 signalling blockade leads to persistent inflammation, with an increase in neutrophils and M1 macrophages and attenuated collagen deposition.
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Affiliation(s)
- Kerstin Klinkert
- Centre for Research in Vascular Biology, University College Cork, Cork, Ireland
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Phospholipase Cγ1 suppresses foreign body giant cell formation by maintaining RUNX1 expression in macrophages. Biochem Biophys Res Commun 2017; 482:1025-1029. [DOI: 10.1016/j.bbrc.2016.11.152] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2016] [Accepted: 11/27/2016] [Indexed: 11/21/2022]
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149
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Lisboa FA, Bradley MJ, Hueman MT, Schobel SA, Gaucher BJ, Styrmisdottir EL, Potter BK, Forsberg JA, Elster EA. Nonsteroidal anti-inflammatory drugs may affect cytokine response and benefit healing of combat-related extremity wounds. Surgery 2016; 161:1164-1173. [PMID: 27919449 DOI: 10.1016/j.surg.2016.10.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 10/05/2016] [Accepted: 10/15/2016] [Indexed: 01/01/2023]
Abstract
BACKGROUND After adequate operative debridement and antimicrobial therapies, combat-related extremity wounds that either heal or fail are both associated with a distinct inflammatory response. Short-term use of nonsteroidal anti-inflammatory drugs in postoperative pain management may affect this response and, by consequence, the healing potential of these wounds. We investigated whether patients treated with nonsteroidal anti-inflammatory drugs had a distinct inflammatory response; different rates of critical colonization, defined as >105 colony forming units on quantitative bacteriology; and healing potential. METHODS We retrospectively reviewed the records of 73 patients with combat-related extremity wounds. Patients were separated into 2 groups: those who received nonsteroidal anti-inflammatory drugs during the debridement period (nonsteroidal anti-inflammatory drugs group, N = 17) and those who did not (control group; N = 56). Serum and wound tissue samples collected during each operative debridement were measured for 32 known cytokines and tested for quantitative bacteriology, respectively. We compared cytokine concentrations between groups and then designed a logistic regression model to identify variables associated with successful wound healing, while controlling for known confounders. RESULTS Despite similar demographics and wound characteristics, the nonsteroidal anti-inflammatory drugs group had significant lesser concentrations of inflammatory cytokines, interleukin-2, interleukin-6, interleukin-8, and monocyte chemoattractant protein-1. On multivariate analysis, nonsteroidal anti-inflammatory drug treatment emerged as a predictor of successful wound healing after controlling for known confounders such as wound size, tobacco use, Acute Physiology and Chronic Health Evaluation II score, and critical colonization. CONCLUSION Treatment with nonsteroidal anti-inflammatory drugs for postoperative pain management after major combat-related extremity trauma is associated with lesser concentrations of inflammatory cytokines and may contribute to a more favorable inflammatory response leading to successful wound healing.
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Affiliation(s)
- Felipe A Lisboa
- Regenerative Medicine Department, Naval Medical Research Center, Silver Spring, MD; Department of Surgery, Uniformed Services University of Health Sciences and Walter Reed National Military Medical Center, Bethesda, MD; Surgical Critical Care Initiative (SC2i), Bethesda, MD
| | - Matthew J Bradley
- Regenerative Medicine Department, Naval Medical Research Center, Silver Spring, MD; Department of Surgery, Uniformed Services University of Health Sciences and Walter Reed National Military Medical Center, Bethesda, MD; Surgical Critical Care Initiative (SC2i), Bethesda, MD
| | - Matthew T Hueman
- Department of Surgery, Uniformed Services University of Health Sciences and Walter Reed National Military Medical Center, Bethesda, MD; Surgical Critical Care Initiative (SC2i), Bethesda, MD
| | - Seth A Schobel
- Department of Surgery, Uniformed Services University of Health Sciences and Walter Reed National Military Medical Center, Bethesda, MD; Surgical Critical Care Initiative (SC2i), Bethesda, MD
| | - Beverly J Gaucher
- Department of Surgery, Uniformed Services University of Health Sciences and Walter Reed National Military Medical Center, Bethesda, MD; Surgical Critical Care Initiative (SC2i), Bethesda, MD
| | - Edda L Styrmisdottir
- Surgical Critical Care Initiative (SC2i), Bethesda, MD; DecisionQ, Arlington, VA
| | - Benjamin K Potter
- Department of Surgery, Uniformed Services University of Health Sciences and Walter Reed National Military Medical Center, Bethesda, MD; Surgical Critical Care Initiative (SC2i), Bethesda, MD
| | - Jonathan A Forsberg
- Regenerative Medicine Department, Naval Medical Research Center, Silver Spring, MD; Department of Surgery, Uniformed Services University of Health Sciences and Walter Reed National Military Medical Center, Bethesda, MD; Surgical Critical Care Initiative (SC2i), Bethesda, MD
| | - Eric A Elster
- Regenerative Medicine Department, Naval Medical Research Center, Silver Spring, MD; Department of Surgery, Uniformed Services University of Health Sciences and Walter Reed National Military Medical Center, Bethesda, MD; Surgical Critical Care Initiative (SC2i), Bethesda, MD.
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Wahl EA, Schenck TL, Machens HG, Balmayor ER. VEGF released by deferoxamine preconditioned mesenchymal stem cells seeded on collagen-GAG substrates enhances neovascularization. Sci Rep 2016; 6:36879. [PMID: 27830734 PMCID: PMC5103276 DOI: 10.1038/srep36879] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Accepted: 10/24/2016] [Indexed: 01/01/2023] Open
Abstract
Hypoxia preconditioning of mesenchymal stem cells (MSCs) has been shown to promote wound healing through HIF-1α stabilization. Preconditioned MSCs can be applied to three-dimensional biomaterials to further enhance the regenerative properties. While environmentally induced hypoxia has proven difficult in clinical settings, this study compares the wound healing capabilities of adipose derived (Ad) MSCs seeded on a collagen-glycosaminoglycan (GAG) dermal substrate exposed to either environmental hypoxia or FDA approved deferoxamine mesylate (DFO) to stabilize HIF-1α for wound healing. The release of hypoxia related reparative factors by the cells on the collagen-GAG substrate was evaluated to detect if DFO produces results comparable to environmentally induced hypoxia to facilitate optimal clinical settings. VEGF release increased in samples exposed to DFO. While the SDF-1α release was lower in cells exposed to environmental hypoxia in comparison to cells cultured in DFO in vitro. The AdMSC seeded biomaterial was further evaluated in a murine model. The implants where harvested after 1 days for histological, inflammatory, and protein analysis. The application of DFO to the cells could mimic and enhance the wound healing capabilities of environmentally induced hypoxia through VEGF expression and promises a more viable option in clinical settings that is not merely restricted to the laboratory.
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Affiliation(s)
- Elizabeth A Wahl
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München, Munich, 81675, Germany
| | - Thilo L Schenck
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München, Munich, 81675, Germany
| | - Hans-Günther Machens
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München, Munich, 81675, Germany
| | - Elizabeth R Balmayor
- Department of Plastic Surgery and Hand Surgery, University Hospital rechts der Isar, Technische Universität München, Munich, 81675, Germany.,Institute for Advanced Study, Technische Universität München, Garching, 85748, Germany
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