1
|
Liang Z, Lai P, Zhang J, Lai Q, He L. Impact of moist wound dressing on wound healing time: A meta-analysis. Int Wound J 2023; 20:4410-4421. [PMID: 37465989 PMCID: PMC10681401 DOI: 10.1111/iwj.14319] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 07/06/2023] [Accepted: 07/06/2023] [Indexed: 07/20/2023] Open
Abstract
Among the assortment of available dressings aimed at promoting wound healing, moist dressings have gained significant popularity because of their ability to create an optimal environment for wound recovery. This meta-analysis seeks to compare the effects of moist dressing versus gauze dressing on wound healing time. A comprehensive literature search was conducted, encompassing publications up until April 1, 2023, across multiple databases including PubMed, Web of Science, China National Knowledge Infrastructure (CNKI), and Cochrane Library. Stringent criteria were used to determine study inclusion and evaluate methodological quality. Statistical analyses were performed utilizing Stata 17.0. A total of 13 articles, encompassing 866 participants, were included in the analysis. The findings indicate that moist dressing surpasses gauze dressing in terms of wound healing time (standard mean difference [SMD] -2.50, 95% confidence interval [CI] -3.35 to -1.66, p < 0.01; I2 = 97.24%), wound site infection rate (odds ratio [OR] 0.30, 95% CI 0.17 to 0.54, p < 0.01; I2 = 39.91%), dressing change times (SMD -3.65, 95% CI -5.34 to -1.97, p < 0.01; I2 = 96.48%), and cost (SMD -2.66, 95% CI -4.24 to -1.09, p < 0.01; I2 = 94.90%). Subgroup analyses revealed possible variations in wound healing time based on wound types and regions. This study underscores the significant advantages associated with the use of moist dressings, including expedited wound healing, reduced infection rates, decreased frequency of dressing changes, and lower overall treatment costs.
Collapse
Affiliation(s)
- Zhengbo Liang
- Department of Anesthesia Surgery CenterPeoples Hospital of Deyang CityDeyang CitySichuanChina
| | - Ping Lai
- Department of Anesthesia Surgery CenterPeoples Hospital of Deyang CityDeyang CitySichuanChina
| | - Jing Zhang
- Department of Anesthesia Surgery CenterPeoples Hospital of Deyang CityDeyang CitySichuanChina
| | - Qing Lai
- Department of Anesthesia Surgery CenterPeoples Hospital of Deyang CityDeyang CitySichuanChina
| | - Lin He
- Department of Nursing, Peoples Hospital of Deyang CityDeyang CitySichuanChina
| |
Collapse
|
2
|
Zhou Z, Feng Z, Sun X, Wang Y, Dou G. The Role of Galectin-3 in Retinal Degeneration and Other Ocular Diseases: A Potential Novel Biomarker and Therapeutic Target. Int J Mol Sci 2023; 24:15516. [PMID: 37958500 PMCID: PMC10649114 DOI: 10.3390/ijms242115516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 10/17/2023] [Accepted: 10/19/2023] [Indexed: 11/15/2023] Open
Abstract
Galectin-3 is the most studied member of the Galectin family, with a large range of mediation in biological activities such as cell growth, proliferation, apoptosis, differentiation, cell adhesion, and tissue repair, as well as in pathological processes such as inflammation, tissue fibrosis, and angiogenesis. As is known to all, inflammation, aberrant cell apoptosis, and neovascularization are the main pathophysiological processes in retinal degeneration and many ocular diseases. Therefore, the review aims to conclude the role of Gal3 in the retinal degeneration of various diseases as well as the occurrence and development of the diseases and discuss its molecular mechanisms according to research in systemic diseases. At the same time, we summarized the predictive role of Gal3 as a biomarker and the clinical application of its inhibitors to discuss the possibility of Gal3 as a novel target for the treatment of ocular diseases.
Collapse
Affiliation(s)
| | | | | | - Yusheng Wang
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China; (Z.Z.); (Z.F.); (X.S.)
| | - Guorui Dou
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi’an 710032, China; (Z.Z.); (Z.F.); (X.S.)
| |
Collapse
|
3
|
Ahmed R, Anam K, Ahmed H. Development of Galectin-3 Targeting Drugs for Therapeutic Applications in Various Diseases. Int J Mol Sci 2023; 24:8116. [PMID: 37175823 PMCID: PMC10179732 DOI: 10.3390/ijms24098116] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 04/24/2023] [Accepted: 04/29/2023] [Indexed: 05/15/2023] Open
Abstract
Galectin-3 (Gal3) is one of the most studied members of the galectin family that mediate various biological processes such as growth regulation, immune function, cancer metastasis, and apoptosis. Since Gal3 is pro-inflammatory, it is involved in many diseases that are associated with chronic inflammation such as cancer, organ fibrosis, and type 2 diabetes. As a multifunctional protein involved in multiple pathways of many diseases, Gal3 has generated significant interest in pharmaceutical industries. As a result, several Gal3-targeting therapeutic drugs are being developed to address unmet medical needs. Based on the PubMed search of Gal3 to date (1987-2023), here, we briefly describe its structure, carbohydrate-binding properties, endogenous ligands, and roles in various diseases. We also discuss its potential antagonists that are currently being investigated clinically or pre-clinically by the public and private companies. The updated knowledge on Gal3 function in various diseases could initiate new clinical or pre-clinical investigations to test therapeutic strategies, and some of these strategies could be successful and recognized as novel therapeutics for unmet medical needs.
Collapse
Affiliation(s)
| | | | - Hafiz Ahmed
- GlycoMantra Inc., Biotechnology Center, University of Maryland Baltimore County, Baltimore, MD 21250, USA
| |
Collapse
|
4
|
Yamate J, Izawa T, Kuwamura M. Macrophage pathology in hepatotoxicity. J Toxicol Pathol 2023; 36:51-68. [PMID: 37101958 PMCID: PMC10123298 DOI: 10.1293/tox.2022-0112] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Accepted: 11/07/2022] [Indexed: 11/30/2022] Open
Abstract
The liver is the most important organ that metabolizes and detoxifies chemicals taken into the body. Therefore, there is always a risk of liver damage owing to the toxic effects of chemicals. The mechanisms of hepatotoxicity have been studied extensively and deeply based on toxic effects of chemicals themselves. However, it is important to note that liver damage is variously modified by the patho-biological reactions evoked mainly via macrophages. Macrophages appearing in hepatotoxicity are evaluated by the M1/M2 polarization; M1 macrophages promote tissue injury/inflammation, whereas M2 macrophages show anti-inflammatory action including reparative fibrosis. The "portal vein-liver barrier" regulated by Kupffer cells and dendritic cells in and around the Glisson's sheath may be related to the initiation of hepatotoxicity. In addition, Kupffer cells exhibit the two-sides of functions (that is, M1 or M2 macrophage-like functions), depending on microenvironmental conditions which may be raised in part by gut microbiota-derived lipopolysaccharide. Furthermore, damage-associated molecular patterns (DAMPs) (in particular, HMGB1) and autophagy (which degrades DAMPs) also play roles in the polarity of M1/M2 macrophages. The mutual relation of "DAMPs (HMGB-1)-autophagy-M1/M2 macrophage polarization" as the patho-biological reaction should be taken into consideration in hepatotoxicity evaluation.
Collapse
Affiliation(s)
- Jyoji Yamate
- Laboratory of Veterinary Pathology, Osaka Metropolitan
University, 1-58 Rinku-Ourai-Kita, Izumisano-shi, Osaka 598-8531, Japan
| | - Takeshi Izawa
- Laboratory of Veterinary Pathology, Osaka Metropolitan
University, 1-58 Rinku-Ourai-Kita, Izumisano-shi, Osaka 598-8531, Japan
| | - Mitsuru Kuwamura
- Laboratory of Veterinary Pathology, Osaka Metropolitan
University, 1-58 Rinku-Ourai-Kita, Izumisano-shi, Osaka 598-8531, Japan
| |
Collapse
|
5
|
Yu TY, Pang JHS, Lin LP, Cheng JW, Liu SJ, Tsai WC. Platelet-Rich Plasma Releasate Promotes Early Healing in Tendon After Acute Injury. Orthop J Sports Med 2021; 9:2325967121990377. [PMID: 33959667 PMCID: PMC8060760 DOI: 10.1177/2325967121990377] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 09/30/2020] [Indexed: 11/16/2022] Open
Abstract
Background Acute tendon injury can limit motion and thereby inhibit tendon healing. Positive results have been found after the use of platelet-rich plasma (PRP) to treat tendon injury; however, the early effects of PRP on tendon regeneration are not known. Purpose/Hypothesis The purpose of this study was to evaluate the effects of PRP releasate (PRPr) on the early stages of tendon healing in a rat partial tenotomy model. It was hypothesized that PRPr can promote early healing of an Achilles tendon in rats. Study Design Controlled laboratory study. Methods PRP was prepared by a 2-step method of manual platelet concentration from 10 rats. PRPr was isolated from the clotted preparation after activation by thrombin and was applied to an Achilles tendon on 1 side of 30 rats on the second day after partial tenotomy, with normal saline used as the control on the other side. Achilles tendon samples were harvested 5 and 10 days after tenotomy. At each time point, 15 Achilles tendon samples were obtained, of which 5 samples were evaluated by Masson trichrome staining, apoptosis, and cell proliferation, while the other 10 samples were tested for tensile strength using a material testing machine. Results Compared with saline-treated control tendons, the PRPr-treated tendons showed increased collagen synthesis near the cut edge and fewer apoptotic cells (P = .01). An immunohistochemical analysis revealed more Ki-67-positive cells but fewer cluster of differentiation (CD) 68+ (ED1+) macrophages in PRPr tendons compared with saline-treated tendons (P < .01). Tendons treated with PRPr also showed higher ultimate tensile strength than those treated with saline (P = .03). Conclusion PRPr treatment promotes tissue recovery in the early phase of tendon healing by stimulating tendon cell proliferation and collagen production while inhibiting cell apoptosis and CD68+ (ED1+) macrophage infiltration. Clinical Relevance These findings suggest that with PRPr treatment, higher loads can be applied to the healing tendon at an earlier time, which can help the patient resume activity earlier.
Collapse
Affiliation(s)
- Tung-Yang Yu
- Department of Physical Medicine and Rehabilitation, Chang Gung Memorial Hospital at Linkou, Taoyuan City, Taiwan
| | | | | | | | | | | |
Collapse
|
6
|
Cheng KY, Lin ZH, Cheng YP, Chiu HY, Yeh NL, Wu TK, Wu JS. Wound Healing in Streptozotocin-Induced Diabetic Rats Using Atmospheric-Pressure Argon Plasma Jet. Sci Rep 2018; 8:12214. [PMID: 30111887 PMCID: PMC6093903 DOI: 10.1038/s41598-018-30597-1] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 07/31/2018] [Indexed: 12/28/2022] Open
Abstract
In this study, we used an argon-based round atmospheric-pressure plasma jet (APPJ) for enhancing wound healing in streptozotocin (STZ) induced diabetic rats. The APPJ was characterized by optical emission spectroscopy. We induced Type 1 and Type 2 diabetes in rats with different amounts of STZ combined with normal and high-fat diets, respectively. The wound area ratio of all the plasma-treated normal and diabetic groups was greatly reduced (up to 30%) compared with that of the untreated groups during healing. Histological analysis revealed faster re-epithelialization, collagen deposition, less inflammation, and a complete skin structure in the plasma-treated groups was found as compared with the untreated control groups. In addition, the new blood vessels of plasma-treated tissues decreased more than untreated tissues in the middle (Day 14) and late (Day 21) stages of wound healing. The plasma-treated wounds demonstrated more transforming growth factor beta (TGF-β) expression in the early stage (Day 7), whereas they decreased in the middle and late stages of wound healing. The levels of superoxide dismutase (SOD), glutathione peroxidase (GPx), and catalase (CAT) increased after plasma treatment. In addition, plasma-treated water had a higher concentration of hydrogen peroxide, nitrite and nitrate when the plasma treatment time was longer. In summary, the proposed argon APPJ based on the current study could be a potential tool for treating diabetic wounds.
Collapse
Affiliation(s)
- Kuang-Yao Cheng
- Department of Mechanical Engineering, National Chiao Tung University, 1001 Ta-Hsueh Road, Hsinchu, 300, Taiwan
| | - Zhi-Hua Lin
- Department of Mechanical Engineering, National Chiao Tung University, 1001 Ta-Hsueh Road, Hsinchu, 300, Taiwan
| | - Yu-Pin Cheng
- Department of Biological Science and Technology, National Chiao Tung University, 75 Bo-Ai Street, Hsinchu, 300, Taiwan
- Department of Dermatology, Cathay General Hospital, 280 Renai Road Section 4, Taipei, 106, Taiwan
| | - Hsien-Yi Chiu
- Department of Dermatology, National Taiwan University Hospital Hsinchu Branch, 25 Jingguo Road Section 1 Lane 442, Hsinchu, 300, Taiwan
| | - Nai-Lun Yeh
- Department of Family Medicine, National Taiwan University Hospital Hsinchu Branch, 25 Jingguo Road Section 1 Lane 442, Hsinchu, 300, Taiwan
| | - Tung-Kung Wu
- Department of Biological Science and Technology, National Chiao Tung University, 75 Bo-Ai Street, Hsinchu, 300, Taiwan
| | - Jong-Shinn Wu
- Department of Mechanical Engineering, National Chiao Tung University, 1001 Ta-Hsueh Road, Hsinchu, 300, Taiwan.
| |
Collapse
|
7
|
Histopathological Analysis of Rat Hepatotoxicity Based on Macrophage Functions: in Particular, an Analysis for Thioacetamide-induced Hepatic Lesions. Food Saf (Tokyo) 2016; 4:61-73. [PMID: 32231908 DOI: 10.14252/foodsafetyfscj.2016012] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 08/30/2016] [Indexed: 12/21/2022] Open
Abstract
Hepatic macrophages play an important role in homeostasis. The functional abnormalities of hepatic macrophages primarily or secondarily influence chemically induced hepatotoxicity. However, the evaluation system based on their functions has not yet been established. Recently, a new concept (M1-/M2-macrophage polarization) was proposed; M1-macropahges are induced by INF-γ, and show high phagocytosis/tissue damage, whereas M2-macropahges are induced by IL-4 and play roles in reparative fibrosis by releasing IL-10 and TGF-β1. In hepatogenesis, CD68-expressing M1-macrophages predominantly exist in embryos; in neonates, in contrast, CD163-/CD204-expressing M2-macrophages appear along the sinusoids and mature as Kupffer cells. Activated Kupffer cells by liposome decrease AST and ALT values, whereas AST and ALT values are increased under Kupffer cells depleted with clodronate treatment. Since Kupffer cells may be involved in clearance of liver enzymes, macrophage condition should be taken into consideration when hepatotoxicity is analyzed. In TAA-induced acute hepatic lesions, INF-γ, TNF-α and IL-6 for M1-factors and IL-4 for M2-factors are already increased before histopathological change; the appearance of CD68-expressing M1-macrophages and CD163-expressing M2-macrophages follows in injured centrilobular lesions, and TGF-β1 and IL-10 are increased for reparative fibrosis. CD68-expressing M1-macrophages co-express MHC class II and Iba-1, whereas CD163-expressing M2-macrophages also express CD204 and Galectin-3. Under macrophage depletion by clodoronate, TAA-treated rat livers show prolonged coagulation necrosis of hepatocytes, and then develop dystrophic calcification without reparative fibrosis. The depletion of hepatic macrophages influences hepatic lesion development. Collectively, a histopathological analysis method for hepatotoxicity according to M1-/M2-macrophage polarization would lead to the refinement of hazard characterization of chemicals in food and feed.
Collapse
|
8
|
Hassan WASE, Baraka EAE, Elnady BM, Gouda TM, Fouad N. Serum Soluble CD163 and its association with various disease parameters in patients with systemic sclerosis. Eur J Rheumatol 2016; 3:95-100. [PMID: 27733938 DOI: 10.5152/eurjrheum.2016.15088] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 01/05/2016] [Indexed: 01/08/2023] Open
Abstract
OBJECTIVE Cluster of differentiation 163 (CD163) is a receptor that binds haptoglobin-hemoglobin complexes and is mainly expressed on macrophages and monocytes. As a result of shedding, the extracellular portion of CD163 circulates in the blood as a soluble CD163 (sCD163). This study aimed to measure serum sCD163 levels in patients with systemic sclerosis (SSc) and to assess its association with the clinical, laboratory, and radiological features of the disease. MATERIAL AND METHODS We measured serum sCD163 levels in 24 patients with SSc and in 30 healthy controls. Complete history of the patients was recorded and thorough clinical, rheumatological, and dermatological examinations were performed. For SSc, the skin thickness score was scored according to the modified Rodnan skin score method and pulmonary involvement was assessed in all patients using high-resolution computed tomography and by performing pulmonary function tests. RESULTS The mean serum sCD163 levels in patients with diffuse and limited SSc (61.64±19.57 and 60.8±21.43 ng/mL, respectively) demonstrated a highly statistically significant increase compared with the mean serum levels in healthy controls (36.97±16.37 ng/mL) (p<0.001). Patients with SSc having elevated serum sCD163 levels had significantly higher pulmonary artery systolic pressure (PASP) than those with normal serum sCD163 levels (p<0.05). Furthermore, the serum sCD163 levels were significantly correlated with PASP (r=0.53, p<0.05) in patients with SSc. The mean serum sCD163 level in patients with SSc having digital ulceration (DU) (70.82±18.3 ng/mL) demonstrated a statistically significant increase (p<0.05) compared with that in SSC patients without DU (53.23±18.09 ng/mL). CONCLUSION The elevated serum sCD163 levels in patients with SSc and its association with pulmonary hypertension suggest a possible role of macrophages in the pathogenesis and vascular involvement of SSc.
Collapse
Affiliation(s)
| | - Eman Abd Elaleem Baraka
- Department of Rheumatology and Rehabilitation, Benha University School of Medicine, Qalubiya, Egypt
| | - Basant Mohammed Elnady
- Department of Rheumatology and Rehabilitation, Benha University School of Medicine, Qalubiya, Egypt
| | | | - Nehad Fouad
- Department of Microbiology and Immunology, Benha University School of Medicine, Qalubiya, Egypt
| |
Collapse
|
9
|
Suzuki R, Takakuda K. Wound healing efficacy of a 660-nm diode laser in a rat incisional wound model. Lasers Med Sci 2016; 31:1683-1689. [PMID: 27495128 DOI: 10.1007/s10103-016-2038-0] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 07/25/2016] [Indexed: 12/11/2022]
Abstract
This study aimed to elucidate the optimum usage parameters of low reactive-level laser therapy (LLLT) in a rat incisional wound model. In Sprague-Dawley rats, surgical wounds of 15-mm length were made in the dorsal thoracic region. They were divided into groups to receive 660-nm diode laser irradiation 24 h after surgery at an energy density of 0 (control), 1, 5, or 10 J/cm2. Tissue sections collected on postoperative day 3 were stained with hematoxylin-eosin and an antibody for ED1 to determine the number of macrophages around the wound. Samples collected on day 7 were stained with hematoxylin-eosin and observed via polarized light microscopy to measure the area occupied by collagen fibers around the wound; day 7 skin specimens were also subjected to mechanical testing to evaluate tensile strength. On postoperative day 3, the numbers of macrophages around the wound were significantly lower in the groups receiving 1 and 5 J/cm2 irradiation, compared to the control and 10 J/cm2 irradiation groups (p < 0.01). The area occupied by collagen fibers in day 7 was largest in 5 J/cm2 group, followed by 1 J/cm2 group, although this difference was not significant. The day 7 tensile test demonstrated significantly greater rupture strength in healing tissues from 1 and 5 J/cm2 irradiation groups, compared to the control group (p < 0.05). Thus, LLLT with a 660-nm diode laser with energy density of 1 and 5 J/cm2 enhanced wound healing in a rat incisional wound model. However, a higher radiation energy density yielded no significant enhancement.
Collapse
Affiliation(s)
- Ryoichi Suzuki
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan
| | - Kazuo Takakuda
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo, 101-0062, Japan.
| |
Collapse
|
10
|
Snyder RJ, Lantis J, Kirsner RS, Shah V, Molyneaux M, Carter MJ. Macrophages: A review of their role in wound healing and their therapeutic use. Wound Repair Regen 2016; 24:613-29. [DOI: 10.1111/wrr.12444] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Revised: 04/20/2016] [Accepted: 04/24/2016] [Indexed: 12/13/2022]
Affiliation(s)
- Robert J. Snyder
- Department of Clinical Research, Barry University School of Podiatric Medicine; Miami Shores Florida
| | - John Lantis
- Department of Surgery; Mount Sinai St. Luke's Roosevelt Hospital Center; New York New York
| | - Robert S. Kirsner
- Department of Dermatology and Cutaneous Surgery; University of Miami School of Medicine; Miami Florida
| | - Vivek Shah
- Research and Development; Macrocure Ltd; Tenafly New Jersey
| | | | | |
Collapse
|
11
|
Zhang M, Kokabu S, Nakatomi C, Sugiyama G, Matsuo K, Jimi E. The distinct distributions of immunocompetent cells in rat dentin pulp after pulpotomy. Anat Rec (Hoboken) 2014; 298:741-9. [PMID: 25371095 DOI: 10.1002/ar.23087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 10/20/2014] [Indexed: 11/07/2022]
Abstract
Pulpotomy involves the removal of the coronal portion of pulp, including the diseased tissue, with the intent of maintaining the vitality of the remaining pulpal tissue via a therapeutic dressing. Once odontoblasts suffer injuries, the differentiation of mesenchymal cells is induced from the precursor cell population in the dental pulp, and these cells are recruited to the injured site to differentiate into odontoblasts. However, the involvement of immunocompetent cells during pulpal regeneration remains unclear. Thus, the purpose of this study was to investigate the properties of macrophages that infiltrated wound healing sites in rats between 1 and 28 days after pulpotomy (dap). During the inflammatory phase, ED1(+) (CD68(+) ) macrophages significantly increased throughout root pulp, especially apical to the demarcation zone, and this population persisted until 3 dap before decreasing gradually until 28 dap. OX6(+) macrophages expressing class II MHC also increased in the apical pulp at 1 dap and declined thereafter. However, OX6(+) cells appeared prior to dentin bridge formation at 3 dap and appeared again apical to the dentin bridge during the healing stage at 14 dap. The shift from ED1(+) cells in the inflammation phase to OX6(+) cells during dentin bridge formation might contribute to wound healing.
Collapse
Affiliation(s)
- Min Zhang
- Division of Oral Pathology, Department of Health Promotion, Kyushu Dental University, 2-6-1 Manazuru, Kokurakita-ku, Kitakyushu, Fukuoka, 803-8580, Japan
| | | | | | | | | | | |
Collapse
|
12
|
Kowal-Bielecka O, Bielecki M, Guiducci S, Trzcinska-Butkiewicz B, Michalska-Jakubus M, Matucci-Cerinic M, Brzosko M, Krasowska D, Chyczewski L, Kowal K. High serum sCD163/sTWEAK ratio is associated with lower risk of digital ulcers but more severe skin disease in patients with systemic sclerosis. Arthritis Res Ther 2014; 15:R69. [PMID: 23800379 PMCID: PMC4060194 DOI: 10.1186/ar4246] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2012] [Revised: 02/21/2013] [Accepted: 06/24/2013] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Systemic sclerosis (SSc) is an autoimmune disease characterized by chronic inflammation, vascular injury and excessive fibrosis. CD163 is a scavenger receptor which affects inflammatory response and may contribute to connective tissue remodelling. It has recently been demonstrated that CD163 can bind and neutralize the TNF-like weak inducer of apoptosis (TWEAK), a multifunctional cytokine which regulates inflammation, angiogenesis and tissue remodelling. We aimed to investigate the relationships between serum levels of soluble CD163 (sCD163) and soluble TWEAK (sTWEAK) in relation to disease manifestations in SSc patients. METHODS This study included 89 patients with SSc who had not received immunosuppressive drugs or steroids for at least 6 months and 48 age- and sex-matched healthy controls (HC) from four European centres. Serum concentrations of sTWEAK and sCD163 were measured using commercially available ELISA kits. RESULTS The mean serum concentrations of sTWEAK were comparable between SSc patients (mean +/- SD: 270 +/- 171 pg/mL) and HC (294 +/- 147pg/mL, P >0.05). Concentration of sCD163 and sCD163/sTWEAK ratio were significantly greater in SSc patients (984 +/- 420 ng/mL and 4837 +/- 3103, respectively) as compared to HC (823 +/- 331 ng/mL and 3115 +/- 1346 respectively, P <0.05 for both). High sCD163 levels and a high sCD163/sTWEAK ratio (defined as > mean +2SD of HC) were both associated with a lower risk of digital ulcers in SSc patients (OR, 95%CI: 0.09; 0.01, 0.71, and 0.17; 0.06, 0.51, respectively). Accordingly, patients without digital ulcers had a significantly higher sCD163 concentration and sCD163/sTWEAK ratio as compared to SSc patients with digital ulcers (P <0.01 for both) and HC (P <0.05 for both). A high sCD163/sTWEAK ratio, but not high sCD163 levels, was associated with greater skin involvement. CONCLUSIONS The results of our study indicate that CD163-TWEAK interactions might play a role in the pathogenesis of SSc and that CD163 may protect against the development of digital ulcers in SSc. Further studies are required to reveal whether targeting of the CD163-TWEAK pathway might be a potential strategy for treating vascular disease and/or skin fibrosis in SSc.
Collapse
|
13
|
Graebert JK, Henzel MK, Honda KS, Bogie KM. Systemic Evaluation of Electrical Stimulation for Ischemic Wound Therapy in a Preclinical In Vivo Model. Adv Wound Care (New Rochelle) 2014; 3:428-437. [PMID: 24940557 DOI: 10.1089/wound.2014.0534] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2014] [Accepted: 03/19/2014] [Indexed: 11/13/2022] Open
Abstract
Objective: In a systematic preclinical investigation of ischemic wound healing, we investigated the hypothesis that electrical stimulation (ES) promotes the healing of ischemic wounds. Approach: The effects of varying clinically relevant ES variables were evaluated using our modified version of the Gould F344 rat ischemic wound model. Stimulation was delivered using the novel lightweight integrated, single-channel, current-controlled modular surface stimulation (MSS) device. Stepwise variation allowed the effects of five different stimulation paradigms within an appropriate current density range to be studied. Within each group, 8-10 animals were treated for 28 days or until the ischemic wounds were healed and 5 animals were treated for 12 days. Eight rats received sham devices. A quantitative multivariable outcomes assessment procedure was used to evaluate the effects of ES. Results: Ischemic wounds treated with a decreased interpulse interval (IPI) had the highest rate of complete wound closure at 3 weeks. Wounds treated with decreased pulse amplitude (PA) had a lower proportion of closed wounds than sham ischemic wounds and showed sustained inflammation with a lack of wound contraction. Innovation: Our systematic study of varying ES paradigms using the novel MSS device provides preliminary insight into potential mechanisms of ES in ischemic wound healing. Conclusion: Clinically appropriate ES can more than double the proportion of ischemic wounds closed by 3 weeks in this model. Ninety percent of wounds treated with a decreased IPI healed by 21 days compared with only 29% of ischemic wounds treated with decreased PA, which appears to inhibit healing.
Collapse
Affiliation(s)
- Jennifer K. Graebert
- APT Center of Excellence, Louis Stokes Cleveland VA Medical Center, Cleveland, Ohio
| | - M. Kristi Henzel
- APT Center of Excellence, Louis Stokes Cleveland VA Medical Center, Cleveland, Ohio
- Department of Physical Medicine & Rehabilitation, Case Western Reserve University, Cleveland, Ohio
| | - Kord S. Honda
- Department of Dermatology, Case Western Reserve University, Cleveland, Ohio
| | - Kath M. Bogie
- APT Center of Excellence, Louis Stokes Cleveland VA Medical Center, Cleveland, Ohio
- Department of Orthopedics & Biomedical Engineering, Case Western Reserve University, Cleveland, Ohio
| |
Collapse
|
14
|
Friedrich EE, Sun LT, Natesan S, Zamora DO, Christy RJ, Washburn NR. Effects of hyaluronic acid conjugation on anti-TNF-α inhibition of inflammation in burns. J Biomed Mater Res A 2013; 102:1527-36. [PMID: 23765644 DOI: 10.1002/jbm.a.34829] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 05/23/2013] [Accepted: 05/31/2013] [Indexed: 01/06/2023]
Abstract
Biomaterials capable of neutralizing specific cytokines could form the basis for treating a broad range of conditions characterized by intense, local inflammation. Severe burns, spanning partial- to full-thickness of the dermis, can result in complications due to acute inflammation that contributes to burn progression, and early mediation may be a key factor in rescuing thermally injured tissue from secondary necrosis to improve healing outcomes. In this work, we examined the effects on burn progression and influence on the inflammatory microenvironment of topical application of anti-tumor necrosis factor-α (anti-TNF-α) alone, mixed with hyaluronic acid (HA) or conjugated to HA. We found that non-conjugated anti-TNF-α decreased macrophage infiltration to a greater extent than that conjugated to HA; however, there was little effect on the degree of progression or IL-1β levels. A simple transport model is proposed to analyze the results, which predicts qualitative and quantitative differences between untreated burn sites and those treated with the conjugates. Our results indicate that conjugation of anti-TNF-α to high molecular weight HA provides sustained, local modulation of the post-injury inflammatory responses compared to direct administration of non-conjugated antibodies.
Collapse
Affiliation(s)
- Emily E Friedrich
- Department of Biomedical Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania
| | | | | | | | | | | |
Collapse
|
15
|
Maeda H, Wada N, Tomokiyo A, Monnouchi S, Akamine A. Prospective potency of TGF-β1 on maintenance and regeneration of periodontal tissue. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2013; 304:283-367. [PMID: 23809439 DOI: 10.1016/b978-0-12-407696-9.00006-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Periodontal ligament (PDL) tissue, central in the periodontium, plays crucial roles in sustaining tooth in the bone socket. Irreparable damages of this tissue provoke tooth loss, causing a decreased quality of life. The question arises as to how PDL tissue is maintained or how the lost PDL tissue can be regenerated. Stem cells included in PDL tissue (PDLSCs) are widely accepted to have the potential to maintain or regenerate the periodontium, but PDLSCs are very few in number. In recent studies, undifferentiated clonal human PDL cell lines were developed to elucidate the applicable potentials of PDLSCs for the periodontal regenerative medicine based on cell-based tissue engineering. In addition, it has been suggested that transforming growth factor-beta 1 is an eligible factor for the maintenance and regeneration of PDL tissue.
Collapse
Affiliation(s)
- Hidefumi Maeda
- Department of Endodontology, Kyushu University Hospital, Fukuoka, Japan.
| | | | | | | | | |
Collapse
|
16
|
Tolg C, Hamilton SR, Zalinska E, McCulloch L, Amin R, Akentieva N, Winnik F, Savani R, Bagli DJ, Luyt LG, Cowman MK, McCarthy JB, Turley EA. A RHAMM mimetic peptide blocks hyaluronan signaling and reduces inflammation and fibrogenesis in excisional skin wounds. THE AMERICAN JOURNAL OF PATHOLOGY 2012; 181:1250-70. [PMID: 22889846 DOI: 10.1016/j.ajpath.2012.06.036] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Revised: 06/14/2012] [Accepted: 06/27/2012] [Indexed: 10/28/2022]
Abstract
Hyaluronan is activated by fragmentation and controls inflammation and fibroplasia during wound repair and diseases (eg, cancer). Hyaluronan-binding peptides were identified that modify fibrogenesis during skin wound repair. Peptides were selected from 7- to 15mer phage display libraries by panning with hyaluronan-Sepharose beads and assayed for their ability to block fibroblast migration in response to hyaluronan oligosaccharides (10 kDa). A 15mer peptide (P15-1), with homology to receptor for hyaluronan mediated motility (RHAMM) hyaluronan binding sequences, was the most effective inhibitor. P15-1 bound to 10-kDa hyaluronan with an affinity of K(d) = 10(-7) and appeared to specifically mimic RHAMM since it significantly reduced binding of hyaluronan oligosaccharides to recombinant RHAMM but not to recombinant CD44 or TLR2,4, and altered wound repair in wild-type but not RHAMM(-/-) mice. One topical application of P15-1 to full-thickness excisional rat wounds significantly reduced wound macrophage number, fibroblast number, and blood vessel density compared to scrambled, negative control peptides. Wound collagen 1, transforming growth factor β-1, and α-smooth muscle actin were reduced, whereas tenascin C was increased, suggesting that P15-1 promoted a form of scarless healing. Signaling/microarray analyses showed that P15-1 blocks RHAMM-regulated focal adhesion kinase pathways in fibroblasts. These results identify a new class of reagents that attenuate proinflammatory, fibrotic repair by blocking hyaluronan oligosaccharide signaling.
Collapse
Affiliation(s)
- Cornelia Tolg
- Cancer Research Laboratory Program, Lawson Health Research Institute and London Regional Cancer Program, London Health Sciences Center, London, Ontario, Canada
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|