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Wu L, Liu Y, He Q, Ao G, Xu N, He W, Liu X, Huang L, Yu Q, Kanamaru H, Dong S, Zhu S, Yuan Y, Han M, Ling Y, Liu L, Wu C, Zhou Y, Sherchan P, Flores JJ, Tang J, Chen X, He X, Zhang JH. PEDF-34 attenuates neurological deficit and suppresses astrocyte-dependent neuroinflammation by modulating astrocyte polarization via 67LR/JNK/STAT1 signaling pathway after subarachnoid hemorrhage in rats. J Neuroinflammation 2024; 21:178. [PMID: 39034417 PMCID: PMC11264993 DOI: 10.1186/s12974-024-03171-y] [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: 05/17/2024] [Accepted: 07/11/2024] [Indexed: 07/23/2024] Open
Abstract
BACKGROUND Reactive astrocytes participate in various pathophysiology after subarachnoid hemorrhage (SAH), including neuroinflammation, glymphatic-lymphatic system dysfunction, brain edema, BBB disruption, and cell death. Astrocytes transform into two new reactive phenotypes with changed morphology, altered gene expression, and secretion profiles, termed detrimental A1 and beneficial A2. This study investigates the effect of 67LR activation by PEDF-34, a PEDF peptide, on neuroinflammation and astrocyte polarization after the experimental SAH. METHODS A total of 318 male adult Sprague-Dawley rats were used in experiments in vivo, of which 272 rats were subjected to the endovascular perforation model of SAH and 46 rats underwent sham surgery. 67LR agonist (PEDF-34) was administrated intranasally 1 h after SAH. 67LR-specific inhibitor (NSC-47924) and STAT1 transcriptional activator (2-NP) were injected intracerebroventricularly 48 h before SAH. Short- and long-term neurological tests, brain water content, immunostaining, Nissl staining, western blot, and ELISA assay were performed. In experiments in vitro, primary astrocyte culture with hemoglobin (Hb) stimulation was used to mimic SAH. The expression of the PEDF-34/67LR signaling pathway and neuro-inflammatory cytokines were assessed using Western blot, ELISA, and immunohistochemistry assays both in vivo and in vitro. RESULTS Endogenous PEDF and 67LR expressions were significantly reduced at 6 h after SAH. 67LR was expressed in astrocytes and neurons. Intranasal administration of PEDF-34 significantly reduced brain water content, pro-inflammatory cytokines, and short-term and long-term neurological deficits after SAH. The ratio of p-JNK/JNK and p-STAT1/STAT1 and the expression of CFB and C3 (A1 astrocytes marker), significantly decreased after PEDF-34 treatment, along with fewer expression of TNF-α and IL-1β at 24 h after SAH. However, 2-NP (STAT1 transcriptional activator) and NSC-47924 (67LR inhibitor) reversed the protective effects of PEDF-34 in vivo and in vitro by promoting A1 astrocyte polarization with increased inflammatory cytokines. CONCLUSION PEDF-34 activated 67LR, attenuating neuroinflammation and inhibiting astrocyte A1 polarization partly via the JNK/STAT1 pathway, suggesting that PEDF-34 might be a potential treatment for SAH patients.
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Affiliation(s)
- Lei Wu
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
- Department of Neurology, Guangdong Second Provincial General Hospital, Guangzhou, 510317, Guangdong, China
| | - Yanchao Liu
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Qiuguang He
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Guangnan Ao
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Ningbo Xu
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
- Department of Interventional Therapy, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Wangqing He
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Xiao Liu
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China
| | - Lei Huang
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
- Department of Neurosurgery, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA
| | - Qian Yu
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Hideki Kanamaru
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Siyuan Dong
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Shiyi Zhu
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Ye Yuan
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Mingyang Han
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Yeping Ling
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Lu Liu
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Chenyu Wu
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - You Zhou
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Prativa Sherchan
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Jerry J Flores
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Jiping Tang
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA
| | - Xionghui Chen
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA.
- Department of Emergency Surgery, First Affiliated Hospital of Soochow University, Suzhou, 215000, Jiangsu, China.
| | - Xuying He
- Department of Cerebrovascular Surgery, Neurosurgery Center, Engineering Technology Research Center of Education Ministry of China on Diagnosis and Treatment of Cerebrovascular Disease, Zhujiang Hospital, Southern Medical University, Guangzhou, 510280, Guangdong, China.
- Department of Neurology, Guangdong Second Provincial General Hospital, Guangzhou, 510317, Guangdong, China.
| | - John H Zhang
- Department of Physiology and Pharmacology, Basic Sciences, School of Medicine, Loma Linda University, Loma Linda, CA, 92354, USA.
- Department of Neurosurgery, Loma Linda University School of Medicine, Loma Linda, CA, 92354, USA.
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Chen S, Barnstable CJ, Zhang X, Li X, Zhao S, Tombran-Tink J. A PEDF peptide mimetic effectively relieves dry eye in a diabetic murine model by restoring corneal nerve, barrier, and lacrimal gland function. Ocul Surf 2024; 32:1-12. [PMID: 38103731 DOI: 10.1016/j.jtos.2023.12.002] [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: 04/01/2023] [Revised: 10/27/2023] [Accepted: 12/09/2023] [Indexed: 12/19/2023]
Abstract
PURPOSE The study investigated effectiveness of a novel PEDF peptide mimetic to alleviate dry eye-like pathologies in a Type I diabetic mouse model established using streptozotocin. METHODS Mice were treated topically for 3-6 weeks with Ppx (a 17-mer PEDF mimetic) 2x/day or vehicle. Corneal sensitivity, tear film, epithelial and endothelial injury were measured using Cochet-Bonnet esthesiometer, phenol red cotton thread wetting, fluorescein sodium staining, and ZO1 expression, respectively. Inflammatory and parasympathetic nerve markers and activation of the MAPK/JNK pathways in the lacrimal glands were measured. RESULTS Diabetic mice exhibited features of dry eye including reduced corneal sensation and tear secretion and increased corneal epithelium injury, nerve degeneration, and edema. Ppx reversed these pathologies and restored ZO1 expression and morphological integrity of the endothelium. Upregulation of IL-1β and TNFα, increased activation of P-38, JNK, and ERK, and higher levels of M3ACHR in diabetic lacrimal glands were also reversed by the peptide treatment. CONCLUSION The study demonstrates that topical application of a synthetic PEDF mimetic effectively alleviates diabetes-induced dry eye by restoring corneal sensitivity, tear secretion, and endothelial barrier and lacrimal gland function. These findings have significant implications for the potential treatment of dry eye using a cost-effective and reproducible approach with minimal invasiveness and no obvious side effects.
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Affiliation(s)
- Shuangping Chen
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, 300384, China
| | - Colin James Barnstable
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, 300384, China; Department of Neural and Behavioral Sciences, Penn State College of Medicine, Hershey, PA, 17033-0850, USA; Skyran Biologics Inc., Harrisburg, PA, USA, 17112
| | - Xiaomin Zhang
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, 300384, China
| | - Xiaorong Li
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, 300384, China
| | - Shaozhen Zhao
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, 300384, China.
| | - Joyce Tombran-Tink
- Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, 300384, China; Department of Neural and Behavioral Sciences, Penn State College of Medicine, Hershey, PA, 17033-0850, USA; Skyran Biologics Inc., Harrisburg, PA, USA, 17112.
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Chiu CC, Cheng KC, Lin YH, He CX, Bow YD, Li CY, Wu CY, Wang HMD, Sheu SJ. Prolonged Exposure to High Glucose Induces Premature Senescence Through Oxidative Stress and Autophagy in Retinal Pigment Epithelial Cells. Arch Immunol Ther Exp (Warsz) 2023; 71:21. [PMID: 37638991 DOI: 10.1007/s00005-023-00686-9] [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: 04/11/2023] [Accepted: 06/28/2023] [Indexed: 08/29/2023]
Abstract
Chronic hyperglycemia involves persistent high-glucose exposure and correlates with retinal degeneration. It causes various diseases, including diabetic retinopathy (DR), a major cause of adult vision loss. Most in vitro studies have investigated the damaging short-term effects of high glucose exposure on retinal pigment epithelial (RPE) cells. DR is also a severe complication of diabetes. In this study, we established a model with prolonged high-glucose exposure (15 and 75 mM exogenous glucose for two months) to mimic RPE tissue pathophysiology in patients with hyperglycemia. Prolonged high-glucose exposure attenuated glucose uptake and clonogenicity in ARPE-19 cells. It also significantly increased reactive oxygen species levels and decreased antioxidant protein (superoxide dismutase 2) levels in RPE cells, possibly causing oxidative stress and DNA damage and impairing proliferation. Western blotting showed that autophagic stress, endoplasmic reticulum stress, and genotoxic stress were induced by prolonged high-glucose exposure in RPE cells. Despite a moderate apoptotic cell population detected using the Annexin V-staining assay, the increases in the senescence-associated proteins p53 and p21 and SA-β-gal-positive cells suggest that prolonged high-glucose exposure dominantly sensitized RPE cells to premature senescence. Comprehensive next-generation sequencing suggested that upregulation of oxidative stress and DNA damage-associated pathways contributed to stress-induced premature senescence of ARPE-19 cells. Our findings elucidate the pathophysiology of hyperglycemia-associated retinal diseases and should benefit the future development of preventive drugs. Prolonged high-glucose exposure downregulates glucose uptake and oxidative stress by increasing reactive oxygen species (ROS) production through regulation of superoxide dismutase 2 (SOD2) expression. Autophagic stress, ER stress, and DNA damage stress (genotoxic stress) are also induced by prolonged high-glucose exposure in RPE cells. Consequently, multiple stresses induce the upregulation of the senescence-associated proteins p53 and p21. Although both apoptosis and premature senescence contribute to high glucose exposure-induced anti-proliferation of RPE cells, the present work shows that premature senescence rather than apoptosis is the dominant cause of RPE degeneration, eventually leading to the pathogenesis of DR.
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Affiliation(s)
- Chien-Chih Chiu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan
- Center for Cancer Research, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan
| | - Kai-Chun Cheng
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan
- Department of Ophthalmology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung, 807, Taiwan
- Department of Ophthalmology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Yi-Hsiung Lin
- Division of Cardiology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan
- Center for Lipid Biosciences, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan
- Lipid Science and Aging Research Center, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Chen-Xi He
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Yung-Ding Bow
- Ph.D. Program in Life Sciences, College of Life Science, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Chia-Yang Li
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Chang-Yi Wu
- Department of Biotechnology, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
- Department of Biological Sciences, National Sun Yat-Sen University, Kaohsiung, 804, Taiwan
| | - Hui-Min David Wang
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan
| | - Shwu-Jiuan Sheu
- Department of Ophthalmology, Kaohsiung Medical University Hospital, Kaohsiung, 807, Taiwan.
- Department of Ophthalmology, School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, 807, Taiwan.
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Kang MJ, Roh KH, Lee JS, Lee JH, Park S, Lim DW. Vascular Endothelial Growth Factor Receptor 1 Targeting Fusion Polypeptides with Stimuli-Responsiveness for Anti-angiogenesis. ACS APPLIED MATERIALS & INTERFACES 2023. [PMID: 37384534 DOI: 10.1021/acsami.3c03989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Genetically engineered fusion polypeptides have been investigated to introduce unique bio-functionality and improve some therapeutic activity for anti-angiogenesis. We report herein that stimuli-responsive, vascular endothelial growth factor receptor 1 (VEGFR1) targeting fusion polypeptides composed of a VEGFR1 (fms-like tyrosine kinase-1 (Flt1)) antagonist, an anti-Flt1 peptide, and a thermally responsive elastin-based polypeptide (EBP) were rationally designed at the genetic level, biosynthesized, and purified by inverse transition cycling to develop potential anti-angiogenic fusion polypeptides to treat neovascular diseases. A series of hydrophilic EBPs with different block lengths were fused with an anti-Flt1 peptide, forming anti-Flt1-EBPs, and the effect of EBP block length on their physicochemical properties was examined. While the anti-Flt1 peptide decreased phase-transition temperatures of anti-Flt1-EBPs, compared with EBP blocks, anti-Flt1-EBPs were soluble under physiological conditions. The anti-Flt1-EBPs dose dependently inhibited the binding of VEGFR1 against vascular endothelial growth factor (VEGF) as well as tube-like network formation of human umbilical vein endothelial cells under VEGF-triggered angiogenesis in vitro because of the specific binding between anti-Flt1-EBPs and VEGFR1. Furthermore, the anti-Flt1-EBPs suppressed laser-induced choroidal neovascularization in a wet age-related macular degeneration mouse model in vivo. Our results indicate that anti-Flt1-EBPs as VEGFR1-targeting fusion polypeptides have great potential for efficacious anti-angiogenesis to treat retinal-, corneal-, and choroidal neovascularization.
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Affiliation(s)
- Min Jeong Kang
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
| | - Kug-Hwan Roh
- Department of Microbiology and Immunology, College of Medicine, Inje University, Busan 47392, Republic of Korea
| | - Jae Sang Lee
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
| | - Jae Hee Lee
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
| | - SaeGwang Park
- Department of Microbiology and Immunology, College of Medicine, Inje University, Busan 47392, Republic of Korea
| | - Dong Woo Lim
- Department of Bionano Engineering and Department of Bionanotechnology, Center for Bionano Intelligence Education and Research, Hanyang University, Ansan 15588, Republic of Korea
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Zhou Y, Xuan Y, Liu Y, Zheng J, Jiang X, Zhang Y, Zhao J, Liu Y, An M. Transcription factor FOXP1 mediates vascular endothelial dysfunction in diabetic retinopathy. Graefes Arch Clin Exp Ophthalmol 2022; 260:3857-3867. [PMID: 35695913 DOI: 10.1007/s00417-022-05698-3] [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: 11/11/2021] [Revised: 04/15/2022] [Accepted: 05/17/2022] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Diabetic retinopathy (DR) is still the fastest growing cause of blindness in working aged adults, and its typical characteristics are endothelial cell dysfunction and pericytes loss. Transcription factor fork head box P1 (FOXP1) is a member of FOX family involved in diabetes progression and is expressed in endothelial cells. The purpose of this study was to investigate the role and mechanism of FOXP1 in DR. METHODS The vitreous of DR patients and non-DR patients were collected, and the expression of FOXP1 was detected by real-time polymerase chain reaction (RT-qPCR) and enzyme-linked immunosorbent assay (ELISA). Human umbilical vein endothelial cells (HUVECs) cultured in high glucose simulated DR environment, and the expressions of FOXP1, vascular endothelial growth factor (VEGF), and pigment epithelium derived factor (PEDF) were detected by RT-qPCR and western blot (WB) after transfection of small interfering RNA (siRNA) to knock out FOXP1. At the same time, 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide assay (MTT), 5-ethynyl-2'-deoxyuridine assay (EDU), flow cytometry, Transwell assay, and tube-forming experiment were performed to determine cell proliferation, migration, and tube-forming ability. RESULTS We found that FOXP1 was highly expressed in the vitreous of DR patients and HUVECs under high glucose condition. After FOXP1 was decreased, the activation of VEGF expression and inhibition of PEDF expression in HUVECs induced by high glucose were reversed; meanwhile, cell proliferation, migration, and tube formation decreased, and apoptosis was promoted. CONCLUSION Generally, FOXP1 is highly expressed in the vitreous of DR patients, and its silence prevented VEGF/PEDF signaling pathway stimulated by high glucose and also reduced the proliferation, migration, and tube formation of endothelial cell, thus improving vascular endothelial dysfunction caused by DR. The results indicate that FOXP1 may be a therapeutic target of DR.
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Affiliation(s)
- Yekai Zhou
- Department of Ophthalmology, The Third Affiliated Hospital of Southern Medical University, No.183, Zhongshan Avenue West, Tianhe District, Guangzhou City, Guangdong Province, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, Guangdong, 510630, People's Republic of China
| | - Yaling Xuan
- Department of Ophthalmology, The Third Affiliated Hospital of Southern Medical University, No.183, Zhongshan Avenue West, Tianhe District, Guangzhou City, Guangdong Province, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, Guangdong, 510630, People's Republic of China
| | - Yi Liu
- Department of Ophthalmology, The Third Affiliated Hospital of Southern Medical University, No.183, Zhongshan Avenue West, Tianhe District, Guangzhou City, Guangdong Province, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, Guangdong, 510630, People's Republic of China
| | - Jiaxuan Zheng
- The Second Medical College of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaoyun Jiang
- Department of Ophthalmology, The Third Affiliated Hospital of Southern Medical University, No.183, Zhongshan Avenue West, Tianhe District, Guangzhou City, Guangdong Province, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, Guangdong, 510630, People's Republic of China
| | - Yun Zhang
- Department of Ophthalmology, The Third Affiliated Hospital of Southern Medical University, No.183, Zhongshan Avenue West, Tianhe District, Guangzhou City, Guangdong Province, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, Guangdong, 510630, People's Republic of China
| | - Jian Zhao
- Department of Ophthalmology, The Third Affiliated Hospital of Southern Medical University, No.183, Zhongshan Avenue West, Tianhe District, Guangzhou City, Guangdong Province, China.,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, Guangdong, 510630, People's Republic of China
| | - Yanli Liu
- Department of Ophthalmology, The Third Affiliated Hospital of Southern Medical University, No.183, Zhongshan Avenue West, Tianhe District, Guangzhou City, Guangdong Province, China. .,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, Guangdong, 510630, People's Republic of China.
| | - Meixia An
- Department of Ophthalmology, The Third Affiliated Hospital of Southern Medical University, No.183, Zhongshan Avenue West, Tianhe District, Guangzhou City, Guangdong Province, China. .,Guangdong Provincial Key Laboratory of Bone and Joint Degeneration Diseases, Guangzhou, Guangdong, 510630, People's Republic of China.
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Wang Y, Liu X, Quan X, Qin X, Zhou Y, Liu Z, Chao Z, Jia C, Qin H, Zhang H. Pigment epithelium-derived factor and its role in microvascular-related diseases. Biochimie 2022; 200:153-171. [DOI: 10.1016/j.biochi.2022.05.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 05/19/2022] [Accepted: 05/30/2022] [Indexed: 01/02/2023]
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7
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Cho CH, Roh KH, Lim NY, Park SJ, Park S, Kim HW. Role of the JAK/STAT pathway in a streptozotocin-induced diabetic retinopathy mouse model. Graefes Arch Clin Exp Ophthalmol 2022; 260:3553-3563. [DOI: 10.1007/s00417-022-05694-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2021] [Revised: 03/30/2022] [Accepted: 05/02/2022] [Indexed: 11/29/2022] Open
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Delivery Systems of Retinoprotective Proteins in the Retina. Int J Mol Sci 2021; 22:ijms22105344. [PMID: 34069505 PMCID: PMC8160820 DOI: 10.3390/ijms22105344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/12/2021] [Accepted: 05/17/2021] [Indexed: 12/26/2022] Open
Abstract
Retinoprotective proteins play important roles for retinal tissue integrity. They can directly affect the function and the survival of photoreceptors, and/or indirectly target the retinal pigment epithelium (RPE) and endothelial cells that support these tissues. Retinoprotective proteins are used in basic, translational and in clinical studies to prevent and treat human retinal degenerative disorders. In this review, we provide an overview of proteins that protect the retina and focus on pigment epithelium-derived factor (PEDF), and its effects on photoreceptors, RPE cells, and endothelial cells. We also discuss delivery systems such as pharmacologic and genetic administration of proteins to achieve photoreceptor survival and retinal tissue integrity.
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Ortega MA, Asúnsolo Á, Pekarek L, Alvarez-Mon MA, Delforge A, Sáez MA, Coca S, Sainz F, Mon MÁ, Buján J, García-Honduvilla N. Histopathological study of JNK in venous wall of patients with chronic venous insufficiency related to osteogenesis process. Int J Med Sci 2021; 18:1921-1934. [PMID: 33850461 PMCID: PMC8040408 DOI: 10.7150/ijms.54052] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 02/11/2021] [Indexed: 12/14/2022] Open
Abstract
Chronic venous insufficiency (CVI) is one of the most common vascular pathologies worldwide. One of the risk factors for the development of CVI is aging, which is why it is related to senile changes. The main trigger of the changes that occur in the venous walls in CVI is blood flow reflux, which produces increased hydrostatic pressure, leading to valve incompetence. The cellular response is one of the fundamental processes in vascular diseases, causing the activation of cell signalling pathways such as c-Jun N-terminal kinase (JNK). Metabolic changes and calcifications occur in vascular pathology as a result of pathophysiological processes. The aim of this study was to determine the expression of JNK in venous disease and its relationship with the role played by the molecules involved in the osteogenic processes in venous tissue calcification. This was a cross-sectional study that analyzed the greater saphenous vein wall in 110 patients with (R) and without venous reflux (NR), classified according to age. Histopathological techniques were used and protein expression was analysed using immunohistochemistry techniques for JNK and markers of osteogenesis (RUNX2, osteocalcin (OCN), osteopontin (OPN)). Significantly increased JNK, RUNX2, OCN, OPN and pigment epithelium-derived factor (PEDF) protein expression and the presence of osseous metaplasia and amorphous calcification were observed in younger patients (<50 years) with venous reflux. This study shows for the first time the existence of an osteogenesis process related to the expression of JNK in the venous wall.
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Affiliation(s)
- Miguel A Ortega
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), Madrid, Spain
- Cancer Registry and Pathology Department, Hospital Universitario Principe de Asturias, Alcalá de Henares, Madrid, Spain
| | - Ángel Asúnsolo
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), Madrid, Spain
- Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
| | - Leonel Pekarek
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
| | - Miguel A Alvarez-Mon
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
| | - Arnaud Delforge
- UFR of pharmacy, University of Clermont Auvergne, Clermont-Ferrand, France
| | - Miguel A Sáez
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
- Pathological Anatomy Service, Central University Hospital of Defence-UAH Madrid, Spain
| | - Santiago Coca
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
- Cancer Registry and Pathology Department, Hospital Universitario Principe de Asturias, Alcalá de Henares, Madrid, Spain
| | - Felipe Sainz
- Ramón y Cajal Institute of Healthcare Research (IRYCIS), Madrid, Spain
- Angiology and Vascular Surgery Service, Central University Hospital of Defence-UAH Madrid, Spain
| | - Melchor Álvarez- Mon
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
- Cancer Registry and Pathology Department, Hospital Universitario Principe de Asturias, Alcalá de Henares, Madrid, Spain
- Immune System Diseases-Rheumatology, Oncology Service and Internal Medicine, University Hospital Príncipe de Asturias, Alcalá de Henares, Madrid, Spain
| | - Julia Buján
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
- Cancer Registry and Pathology Department, Hospital Universitario Principe de Asturias, Alcalá de Henares, Madrid, Spain
| | - Natalio García-Honduvilla
- Department of Medicine and Medical Specialities, Faculty of Medicine and Health Sciences, University of Alcalá, Alcalá de Henares, Madrid, Spain
- Cancer Registry and Pathology Department, Hospital Universitario Principe de Asturias, Alcalá de Henares, Madrid, Spain
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10
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Sheibani N, Zaitoun IS, Wang S, Darjatmoko SR, Suscha A, Song YS, Sorenson CM, Shifrin V, Albert DM, Melgar-Asensio I, Kandela I, Henkin J. Inhibition of retinal neovascularization by a PEDF-derived nonapeptide in newborn mice subjected to oxygen-induced ischemic retinopathy. Exp Eye Res 2020; 195:108030. [PMID: 32272114 DOI: 10.1016/j.exer.2020.108030] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 03/28/2020] [Accepted: 03/30/2020] [Indexed: 01/24/2023]
Abstract
Retinopathy of prematurity (ROP) is a growing cause of lifelong blindness and visual defects as improved neonatal care worldwide increases survival in very-low-birthweight preterm newborns. Advancing ROP is managed by laser surgery or a single intravitreal injection of anti-VEGF, typically at 33-36 weeks gestational age. While newer methods of scanning and telemedicine improve monitoring ROP, the above interventions are more difficult to deliver in developing countries. There is also concern as to laser-induced detachment and adverse developmental effects in newborns of anti-VEGF treatment, spurring a search for alternative means of mitigating ROP. Pigment epithelium-derived factor (PEDF), a potent angiogenesis inhibitor appears late in gestation, is undetected in 25-28 week vitreous, but present at full term. Its absence may contribute to ROP upon transition from high-to-ambient oxygen environment or with intermittent hypoxia. We recently described antiangiogenic PEDF-derived small peptides which inhibit choroidal neovascularization, and suggested that their target may be laminin receptor, 67LR. The latter has been implicated in oxygen-induced ischemic retinopathy (OIR). Here we examined the effect of a nonapeptide, PEDF 336, in a newborn mouse OIR model. Neovascularization was significantly decreased in a dose-responsive manner by single intravitreal (IVT) injections of 1.25-7.5 μg/eye (1.0-6.0 nmol/eye). By contrast, anti-mouse VEGFA164 was only effective at 25 ng/eye, with limited dose-response. Combination of anti-VEGFA164 with PEDF 336 gave only the poorer anti-VEGF response while abrogating the robust inhibition seen with peptide-alone, suggesting a need for VEGF in sensitizing the endothelium to the peptide. VEGF stimulated 67LR presentation on endothelial cells, which was decreased in the presence of PEDF 336. Mouse and rabbit eyes showed no histopathology or inflammation after IVT peptide injection. Thus, PEDF 336 is a potential ROP therapeutic, but is not expected to be beneficial in combination with anti-VEGF.
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Affiliation(s)
- Nader Sheibani
- Departments of Ophthalmology and Visual Sciences, Biomedical Engineering, and Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Ismail S Zaitoun
- Departments of Ophthalmology and Visual Sciences, Biomedical Engineering, and Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Shoujian Wang
- Departments of Ophthalmology and Visual Sciences, Biomedical Engineering, and Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Soesiawati R Darjatmoko
- Departments of Ophthalmology and Visual Sciences, Biomedical Engineering, and Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Andrew Suscha
- Departments of Ophthalmology and Visual Sciences, Biomedical Engineering, and Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Yong-Seok Song
- Departments of Ophthalmology and Visual Sciences, Biomedical Engineering, and Cell and Regenerative Biology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Christine M Sorenson
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | | | - Daniel M Albert
- Department of Ophthalmology, Casey Eye Institute, Oregon Health Sciences University, Portland, USA
| | | | - Irawati Kandela
- Center for Developmental Therapeutics, Northwestern University, Evanston, IL, USA
| | - Jack Henkin
- Center for Developmental Therapeutics, Northwestern University, Evanston, IL, USA.
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