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Polat OA, Karabulut D, Akkul Z, Unsal M, Sayan M, Horozoglu F, Evereklioglu C, Sener H. Evaluation of histologic, antiapoptotic and antioxidant effects of melatonin against the acute ocular toxicity of Cisplatin. Tissue Cell 2023; 85:102226. [PMID: 37793209 DOI: 10.1016/j.tice.2023.102226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/16/2023] [Accepted: 09/25/2023] [Indexed: 10/06/2023]
Abstract
This study aimed to investigate the protective effect of melatonin against the acute toxicity of cisplatin in ocular tissues. The eyes of 40 rats were divided into 4 groups: Control group (10 rats), Melatonin (Mel) group (10 rats), Cisplatin (Cis) group (10 rats), Melatonin (Mel) + Cisplatin (Cis) group (10 rats). Retina, cornea, and ciliary body tissues were examined after hematoxylin-eosin staining of sections obtained from the eyes and were scored for disorganization and degeneration. Apoptotic cells were counted for the retina, cornea, and ciliary body with the TUNEL (Terminal deoxynucleotidyl transferase dUTP nick end labeling) method. The total antioxidant status (TAS) / total oxidant status (TOS) of homogenized eye tissues were measured. While apoptotic cells were found to increase in the cornea of the Cisplatin (Cis) group, no difference was found regarding the retina and ciliary body cell count. An increased number of apoptotic cells in the cornea of the Cis group was found while there was a decrease in the group where Cisplatin and Melatonin were administered together (Mel+Cis group). There was no statistically significant difference amongst groups for TOS or TAS. Melatonin had a partial protective effect against histological damage.
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Affiliation(s)
- Osman Ahmet Polat
- Department of Ophthalmology, Erciyes University Medicine Faculty, Kayseri, Turkey.
| | - Derya Karabulut
- Department of Histology and Embryology, Erciyes University Medicine Faculty, Kayseri, Turkey
| | - Zeynep Akkul
- Department of Ophthalmology, Erciyes University Medicine Faculty, Kayseri, Turkey
| | - Murat Unsal
- Department of Histology and Embryology, Erciyes University Medicine Faculty, Kayseri, Turkey
| | - Meryem Sayan
- Department of Histology and Embryology, Erciyes University Medicine Faculty, Kayseri, Turkey
| | - Fatih Horozoglu
- Department of Ophthalmology, Erciyes University Medicine Faculty, Kayseri, Turkey
| | - Cem Evereklioglu
- Department of Ophthalmology, Erciyes University Medicine Faculty, Kayseri, Turkey
| | - Hidayet Sener
- Department of Ophthalmology, Erciyes University Medicine Faculty, Kayseri, Turkey
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Zhang S, Ishida Y, Ishigami A, Nosaka M, Kuninaka Y, Yasuda H, Kofuna A, Matsuki J, Osako M, Zhang W, Kimura A, Furukawa F, Kondo T. Forensic application of epidermal expression of HSP27 and HSP70 for the determination of wound vitality in human compressed neck skin. Sci Rep 2023; 13:6692. [PMID: 37095183 PMCID: PMC10126125 DOI: 10.1038/s41598-023-33799-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Accepted: 04/19/2023] [Indexed: 04/26/2023] Open
Abstract
Estimating the age and vitality of human skin wounds is essential in forensic practice, and the use of immunohistochemical parameters in this regard remains a challenge. Heat shock proteins (HSPs) are evolutionarily conserved universal proteins that protect biological systems from various types of stress. However, its importance in forensic pathology for determining wound activation in neck compression skin remains unclear. The expression of HSP27 and HSP70 in neck skin samples was immunohistochemically examined to understand its forensic applicability in determining wound vitality. Skin samples were obtained from 45 cases of neck compression (hanging, 32 cases; strangulation, 10 cases; manual strangulation, 2 cases; other, 1 case) during forensic autopsies; intact skin from the same individual was used as a control. HSP27 expression was detected in 17.4% of keratinocytes in the intact skin samples. In the compressed region, the frequency of HSP27 expression in keratinocytes was 75.8%, which was significantly higher than that in intact skin. Similarly, HSP70 expression was 24.8% in intact skin samples and 81.9% in compressed skin samples, significantly higher in compressed skin than in intact skin samples. This increase in case compression cases may be due to the cell defence role of HSPs. From a forensic pathology perspective, the immunohistochemical examination of HSP27 and HSP70 expression in neck skin could be considered a valuable marker for diagnosing traces of antemortem compression.
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Affiliation(s)
- Siying Zhang
- Department of Forensic Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Japan
| | - Yuko Ishida
- Department of Forensic Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Japan.
| | - Akiko Ishigami
- Department of Forensic Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Japan
| | - Mizuho Nosaka
- Department of Forensic Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Japan
| | - Yumi Kuninaka
- Department of Forensic Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Japan
| | - Haruki Yasuda
- Department of Forensic Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Japan
| | - Ayumi Kofuna
- Department of Forensic Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Japan
| | - Jumpei Matsuki
- Department of Forensic Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Japan
| | - Miyu Osako
- Department of Forensic Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Japan
| | - Wei Zhang
- Department of Forensic Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Japan
| | - Akihiko Kimura
- Department of Forensic Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Japan
| | - Fukumi Furukawa
- Department of Forensic Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Japan
| | - Toshikazu Kondo
- Department of Forensic Medicine, Wakayama Medical University, 811-1 Kimiidera, Wakayama, 641-8509, Japan.
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Effect of Polydeoxyribonucleotide (PDRN) Treatment on Corneal Wound Healing in Zebrafish ( Danio rerio). Int J Mol Sci 2022; 23:ijms232113525. [PMID: 36362312 PMCID: PMC9659220 DOI: 10.3390/ijms232113525] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/31/2022] [Accepted: 10/31/2022] [Indexed: 11/06/2022] Open
Abstract
This study aimed to develop a corneal epithelial injury model in zebrafish (Danio rerio) and investigate the effectiveness of polydeoxyribonucleotide (PDRN) treatment on in vivo corneal epithelial regeneration and wound healing. Chemical injury to zebrafish cornea was produced by placing a small cotton swab containing 3% acetic acid solution. PDRN treatment was performed by immersing corneal-injured zebrafish in water containing PDRN (2 mg/mL) for 10 min at 0, 24, 48, and 72 h post-injury (hpi). The level of corneal healing was evaluated by fluorescein staining, histological examination, transcriptional profiling, and immunoblotting techniques. Fluorescein staining results demonstrate that PDRN treatment significantly (p < 0.05) reduced the wounded area of the zebrafish eye at 48 and 72 hpi, suggesting that PDRN may accelerate the corneal re-epithelialization. Histopathological evaluation revealed that injured corneal epithelial cells were re-organized at 72 hpi upon PDRN treatment with increased goblet cell density and size. Moreover, transcriptional analysis results demonstrate that PDRN treatment induced the mRNA expression of adora2ab (6.3-fold), pax6a (7.8-fold), pax6b (29.3-fold), klf4 (7.3-fold), and muc2.1 (5.0-fold) after the first treatment. Besides, tnf-α (2.0-fold) and heat-shock proteins (hsp70; 2.8-fold and hsp90ab1; 1.6-fold) have modulated the gene expression following the PDRN treatment. Immunoblotting results convincingly confirmed the modulation of Mmp-9, Hsp70, and Tnf-α expression levels upon PDRN treatment. Overall, our corneal injury model in zebrafish allows for understanding the morphological and molecular events of corneal epithelial healing, and ophthalmic responses for PDRN treatment following acid injury in zebrafish.
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Wang M, Hu J, Qu J, Huang H, Zhang J, Zhang J, Li H, Cui X, Zhang F, Hu MY, Li J, Hu Y. The Therapeutic Roles of Recombinant Hsp90α on Cornea Epithelial Injury. Invest Ophthalmol Vis Sci 2022; 63:30. [PMID: 35201262 PMCID: PMC8883155 DOI: 10.1167/iovs.63.2.30] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Purpose The purpose of this study was to explore the therapeutic role of heat shock protein 90 (Hsp90) in wound healing of injury cornea epithelium. Methods The right eye of C57BL/6N male mice were performed the debridement wounds in the center of the cornea using an algerbrush II blade. The injured area was determined by staining the cornea with fluorescein sodium and measured with image-J. Immunoblotting, ELISA and immunochemistry were used for determining protein expression. The quantitation PCR was performed to measure mRNA expression. Results Hsp90α is upregulated at both the mRNA and protein levels, and is secreted extracellularly into the corneal stroma and tear film during the healing process after corneal injury in mice. This upregulation is associated with activation of HSF1. Administration of recombinant exogenous Hsp90α (eHsp90α) speeds up wound healing of injured corneal epithelium. The eHsp90α binds to low-density lipoprotein (LDL)-related protein-1 (LRP-1) on the corneal epithelial cells and increases phosphorylation of AKT at S473, which is associated with proliferation and migration corneal epithelial cells in vitro or vivo. Inhibition of AKT by its inhibitor LY294002 abolishes eHsp90α-induced migration and proliferation of corneal epithelial cells. Conclusions Hsp90α is upregulated and secreted after corneal injury and acts to promote the healing process. Recombinant Hsp90α may be a promising therapeutic drug candidate for corneal injury.
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Affiliation(s)
- Mingli Wang
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Department of Cell Biology and Genetics, School of Basic Medical Science, Henan University, Kaifeng, China.,State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng, China.,Kaifeng Key Laboratory for Cataract and Myopia, Institute of Eye Disease, Kaifeng Central Hospital, Kaifeng, China
| | - Jialin Hu
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Department of Cell Biology and Genetics, School of Basic Medical Science, Henan University, Kaifeng, China
| | - Junwei Qu
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Department of Cell Biology and Genetics, School of Basic Medical Science, Henan University, Kaifeng, China
| | - Huili Huang
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Department of Cell Biology and Genetics, School of Basic Medical Science, Henan University, Kaifeng, China
| | - Jing Zhang
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Department of Cell Biology and Genetics, School of Basic Medical Science, Henan University, Kaifeng, China
| | - Jun Zhang
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Department of Cell Biology and Genetics, School of Basic Medical Science, Henan University, Kaifeng, China
| | - Hui Li
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Department of Cell Biology and Genetics, School of Basic Medical Science, Henan University, Kaifeng, China
| | - Xiukun Cui
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Department of Cell Biology and Genetics, School of Basic Medical Science, Henan University, Kaifeng, China
| | - Fengyan Zhang
- Department of Ophthalmology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Meng Yue Hu
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Department of Cell Biology and Genetics, School of Basic Medical Science, Henan University, Kaifeng, China
| | - Jing Li
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Department of Cell Biology and Genetics, School of Basic Medical Science, Henan University, Kaifeng, China
| | - Yanzhong Hu
- Joint National Laboratory for Antibody Drug Engineering, The First Affiliated Hospital of Henan University, Department of Cell Biology and Genetics, School of Basic Medical Science, Henan University, Kaifeng, China.,State Key Laboratory of Crop Stress Adaptation and Improvement, Henan University, Kaifeng, China.,Kaifeng Key Laboratory for Cataract and Myopia, Institute of Eye Disease, Kaifeng Central Hospital, Kaifeng, China.,Department of Ophthalmology, First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
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Alling CR, Liu CC, Langohr IM, Haque M, Carter RT, Baker RE, Lewin AC. Assessment of Cidofovir for Treatment of Ocular Bovine Herpesvirus-1 Infection in Cattle Using an Ex-Vivo Model. Viruses 2021; 13:v13102102. [PMID: 34696532 PMCID: PMC8540818 DOI: 10.3390/v13102102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/09/2021] [Accepted: 10/14/2021] [Indexed: 11/16/2022] Open
Abstract
Bovine herpesvirus-1 (BoHV-1) infection contributes to keratoconjunctivitis, respiratory disease, and reproductive losses in cattle. The objective of this study was to determine the most appropriate ophthalmic antiviral agent for BoHV-1 inhibition using in-vitro culture and novel ex-vivo bovine corneal modeling. Half-maximal inhibitory concentrations of BoHV-1 were determined for cidofovir, ganciclovir, idoxuridine, and trifluridine via in-vitro plaque reduction assays. In-vitro cytotoxicity was compared amongst these compounds via luciferase assays. Trifluridine and cidofovir were the most potent BoHV-1 inhibitors in vitro, while trifluridine and idoxuridine were the most cytotoxic agents. Therefore, cidofovir was the most potent non-cytotoxic agent and was employed in the ex-vivo corneal assay. Corneoscleral rings (n = 36) from fresh cadaver bovine globes were harvested and equally divided into an uninfected, untreated control group; a BoHV-1-infected, untreated group; and a BoHV-1-infected, cidofovir-treated group. Virus isolation for BoHV-1 titers was performed from corneal tissue and liquid media. Histologic measurements of corneal thickness, epithelial cell density, and tissue organization were compared between groups. Substantial BoHV-1 replication was observed in infected, untreated corneas, but BoHV-1 titer was significantly reduced in cidofovir-treated (1.69 ± 0.08 × 103 PFU/mL) versus untreated (8.25 ± 0.25 × 105 PFU/mL, p < 0.0001) tissues by day 2 of culture. No significant differences in histologic criteria were observed between groups. In conclusion, cidofovir warrants further investigation as treatment for BoHV-1 keratoconjunctivitis, with future studies needed to assess in-vivo tolerability and efficacy.
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Affiliation(s)
- Christopher R. Alling
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA; (C.R.A.); (C.-C.L.); (R.T.C.); (R.E.B.)
| | - Chin-Chi Liu
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA; (C.R.A.); (C.-C.L.); (R.T.C.); (R.E.B.)
| | - Ingeborg M. Langohr
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA; (I.M.L.); (M.H.)
| | - Muzammel Haque
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA; (I.M.L.); (M.H.)
| | - Renee T. Carter
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA; (C.R.A.); (C.-C.L.); (R.T.C.); (R.E.B.)
| | - Rose E. Baker
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA; (C.R.A.); (C.-C.L.); (R.T.C.); (R.E.B.)
| | - Andrew C. Lewin
- Department of Veterinary Clinical Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA; (C.R.A.); (C.-C.L.); (R.T.C.); (R.E.B.)
- Correspondence:
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Banks KC, Ericsson AC, Reinero CR, Giuliano EA. Veterinary ocular microbiome: Lessons learned beyond the culture. Vet Ophthalmol 2019; 22:716-725. [PMID: 31070001 DOI: 10.1111/vop.12676] [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: 11/21/2018] [Revised: 02/27/2019] [Accepted: 04/12/2019] [Indexed: 01/08/2023]
Abstract
Ocular pathogens cause many painful and vision-threatening diseases such as infectious keratitis, uveitis, and endophthalmitis. While virulent pathogens and pathobionts play important roles in disease pathogenesis, the scientific community has long assumed disruption of the ocular surface occurs prior to microbial colonization and subsequent infection. While nonpathogenic bacteria are often detected in corneal and conjunctival cultures from healthy eyes, cultures also frequently fail to yield growth of common ocular pathogens or nonpathogenic bacteria. This prompts the following question: Is the ocular surface populated by a stable microbial population that cannot be detected using standard culture techniques? The study of the microbiome has recently become a widespread focus in physician and veterinary medicine. Research suggests a pivotal symbiotic relationship with these microbes to maintain healthy host tissues, and when altered is associated with various disease states ("dysbiosis"). The microbiota that lives within and on mammalian bodies have long been known to influence health and susceptibility to infection. However, limitations of traditional culture methods have resulted in an incomplete understanding of what many now call the "forgotten organ," that is, the microbiome. With the introduction of high-throughput sequencing, physician ophthalmology has recognized an ocular surface with much more diverse microbial communities than suspected based on traditional culture. This article reviews the salient features of the ocular surface microbiome and highlights important future applications following the advent of molecular techniques for microbial identification, including characterizing ocular surface microbiomes in our veterinary species and their potential role in management of infectious and inflammatory ocular diseases.
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Affiliation(s)
- Kayla C Banks
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, Missouri
| | - Aaron C Ericsson
- Department of Veterinary Pathobiology, University of Missouri, Columbia, Missouri
| | - Carol R Reinero
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, Missouri
| | - Elizabeth A Giuliano
- Department of Veterinary Medicine and Surgery, College of Veterinary Medicine, University of Missouri, Columbia, Missouri
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Effects of far infrared radiation by isotropic high-density carbon on the human oral mucosa. Arch Oral Biol 2018; 94:62-68. [DOI: 10.1016/j.archoralbio.2018.06.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 06/08/2018] [Accepted: 06/10/2018] [Indexed: 11/23/2022]
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Bolus DJ, Shanmugam G, Narasimhan M, Rajasekaran NS. Recurrent heat shock impairs the proliferation and differentiation of C2C12 myoblasts. Cell Stress Chaperones 2018; 23:399-410. [PMID: 29063376 PMCID: PMC5904084 DOI: 10.1007/s12192-017-0851-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Revised: 10/05/2017] [Accepted: 10/07/2017] [Indexed: 12/21/2022] Open
Abstract
Heat-related illness and injury are becoming a growing safety concern for the farmers, construction workers, miners, firefighters, manufacturing workers, and other outdoor workforces who are exposed to heat stress in their routine lives. A primary response by a cell to an acute heat shock (HS) exposure is the induction of heat-shock proteins (HSPs), which chaperone and facilitate cellular protein folding and remodeling processes. While acute HS is well studied, the effect of repeated bouts of hyperthermia and the sustained production of HSPs in the myoblast-myotube model system of C2C12 cells are poorly characterized. In C2C12 myoblasts, we found that robust HS (43 °C, dose/time) significantly decreased the proliferation by 50% as early as on day 1 and maintained at the same level on days 2 and 3 of HS. This was accompanied by an accumulation of cells at G2 phase with reduced cell number in G1 phase indicating cell cycle arrest. FACS analysis indicates that there was no apparent change in apoptosis (markers) and cell death upon repeated HS. Immunoblot analysis and qPCR demonstrated a significant increase in the baseline expression of HSP25, 70, and 90 (among others) in cells after a single HS (43 °C) for 60 min as a typical HS response. Importantly, the repeated HS for 60 min each on days 2 and 3 maintained the elevated levels of HSPs compared to the control cells. Further, the continuous HS exposure resulted in significant inhibition of the differentiation of C2C12 myocytes to myotubes and only 1/10th of the cells underwent differentiation in HS relative to control. This was associated with significantly higher levels of HSPs and reduced expression of myogenin and Myh2 (P < 0.05), the genes involved in the differentiation process. Finally, the cell migration (scratch) assay indicated that the wound closure was significantly delayed in HS cells relative to the control cells. Overall, these results suggest that a repeated HS may perturb the active process of proliferation, motility, and differentiation processes in an in vitro murine myoblast-myotube model.
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Affiliation(s)
- Daniel J Bolus
- Cardiac Aging & Redox Signaling Laboratory, Division of Molecular & Cellular Pathology, Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, 35294-2180, USA
| | - Gobinath Shanmugam
- Cardiac Aging & Redox Signaling Laboratory, Division of Molecular & Cellular Pathology, Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, 35294-2180, USA
| | - Madhusudhanan Narasimhan
- Department of Pharmacology and Neuroscience, Texas Tech University Health Sciences Center, Lubbock, TX, 79430, USA.
| | - Namakkal S Rajasekaran
- Cardiac Aging & Redox Signaling Laboratory, Division of Molecular & Cellular Pathology, Department of Pathology, The University of Alabama at Birmingham, Birmingham, AL, 35294-2180, USA.
- Division of Cardiovascular Medicine, Department of Medicine, The University of Utah School of Medicine, Salt Lake City, UT, 84132, USA.
- Center for Free Radical Biology, The University of Alabama at Birmingham, Birmingham, AL, 35294-2180, USA.
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Singh A, Abd AJ, Al-Mashahedah A, Kanwar JR. Corneal Haze, Refractive Surgery, and Implications for Choroidal Neovascularization. DRUG DELIVERY FOR THE RETINA AND POSTERIOR SEGMENT DISEASE 2018:439-477. [DOI: 10.1007/978-3-319-95807-1_25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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10
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Urban-Chmiel R, Balicki I, Wernicki A. Heat Shock Proteins 70kDa, Eosinophil Cationic Protein, and Nitric Oxide During Chronic Superficial Keratitis in Dogs. Top Companion Anim Med 2017; 32:8-12. [PMID: 28750792 DOI: 10.1053/j.tcam.2017.05.008] [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: 02/13/2017] [Accepted: 05/12/2017] [Indexed: 11/11/2022]
Abstract
The objective of the study is to determine the levels of eosinophil cationic protein (ECP), heat shock proteins 70, and nitric oxide ions measured as nitrite ions (Griess reaction) in dogs with chronic superficial keratitis (CSK). The study was conducted on 24 dogs with CSK. Blood sera from the animals were tested for concentrations of heat shock proteins 70, ECP, and nitrite ions before treatment and again 5 weeks and 6 months after treatment. Dogs with CSK were treated for 6 months with various regimes involving the use of ophthalmic drops containing dexamethasone, dimethyl sulfoxide, and cyclosporine. The control group consisted of 16 clinically healthy German Shepherds. The results obtained indicated a significant (P ≤ 0.05) elevation in the concentrations of heat shock proteins 70 and nitrite ions in dogs with CSK in comparison to healthy dogs and dogs after 5 weeks of therapy. After 6 months of treatment, concentrations of heat shock proteins 70, ECP, and nitrite ions had fallen below pretreatment values. Significant correlations were found between concentrations of heat shock proteins 70, ECP, and nitrite ions in healthy animals and animals with CSK. The elevated concentrations of heat shock proteins 70, ECP, and nitrite ions in dogs with CSK may indicate that the disease was both localized and systemic. The significant correlation between levels of heat shock proteins 70 and nitrite ions suggests that these parameters may be used as indirect indicators of CSK.
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Affiliation(s)
- Renata Urban-Chmiel
- Faculty of Veterinary Medicine, Subdepartment of Veterinary Prevention and Avian Diseases, Institute of Biological Bases of Animal Diseases, University of Life Sciences Lublin, Głęboka 30, 20-612 Lublin, Poland.
| | - Ireneusz Balicki
- Faculty of Veterinary Medicine, Department and Clinic of Animal Surgery, University of Life Sciences Lublin, Akademicka 12, 20-033 Lublin, Poland
| | - Andrzej Wernicki
- Faculty of Veterinary Medicine, Subdepartment of Veterinary Prevention and Avian Diseases, Institute of Biological Bases of Animal Diseases, University of Life Sciences Lublin, Głęboka 30, 20-612 Lublin, Poland
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Peterson C, Driskell E, Wilkie D, Premanandan C, Hamor R. Heat-shock protein 70 expression in the equine cornea. Vet Ophthalmol 2016; 20:344-348. [PMID: 27624739 DOI: 10.1111/vop.12432] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE Expression of the 70-kDa heat-shock protein (HSP70) has been demonstrated in normal canine corneal epithelium, and inducible expression has been suggested to facilitate wound resolution through organized migration, proliferation, and adhesion of the corneal epithelial cells. Diminished expression of HSP70 may therefore contribute to prolonged healing in the pathologic cornea of other companion animal species, including the horse. ANIMAL STUDIED Normal and pathologic equine cornea was evaluated to determine whether the expression of HSP70 is correlated with appropriate corneal epithelial wound healing. PROCEDURES Paraffin-embedded tissue from normal equine cornea and therapeutic keratectomies of sterile keratopathies was subject to routine immunohistochemistry for HSP70. RESULTS Normal equine corneas exhibited the baseline expression of HSP70 in the nuclei of all epithelial cells as well as the cytoplasm of the basal epithelium. Expression of HSP70 in suspected immune-mediated keratitis was localized to the cytoplasm of basal epithelial cells and nuclei of all epithelial cells, similar to the normal equine cornea. Expression in indolent ulcers was diminished; weak, diffuse staining was noted in the cytoplasm of all epithelial cells. CONCLUSIONS These findings suggest the expression of HSP70 is induced in the normal equine cornea during re-epithelialization and may be altered in sterile keratopathies.
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Affiliation(s)
- Cornelia Peterson
- College of Veterinary Medicine, University of Illinois, Urbana, IL, USA
| | | | - David Wilkie
- College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | | | - Ralph Hamor
- College of Veterinary Medicine, University of Illinois, Urbana, IL, USA
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