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Mehling K, Becker J, Chen J, Scriba S, Kindl G, Jakubietz R, Sommer C, Hartmannsberger B, Rittner HL. Bilateral deficiency of Meissner corpuscles and papillary microvessels in patients with acute complex regional pain syndrome. Pain 2024; 165:1613-1624. [PMID: 38335004 PMCID: PMC11190899 DOI: 10.1097/j.pain.0000000000003168] [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: 06/23/2023] [Revised: 11/28/2023] [Accepted: 11/29/2023] [Indexed: 02/10/2024]
Abstract
ABSTRACT Complex regional pain syndrome (CRPS) presents postinjury with disproportionate pain and neuropathic, autonomic, motor symptoms, and skin texture affection. However, the origin of these multiplex changes is unclear. Skin biopsies offer a window to analyze the somatosensory and vascular system as well as skin trophicity with their protecting barriers. In previous studies, barrier-protective exosomal microRNAs were altered in CRPS. We here postulated that tissue architecture and barrier proteins are already altered at the beginning of CRPS. We analyzed ipsilateral and contralateral skin biopsies of 20 fully phenotyped early CRPS patients compared with 20 age- and sex-matched healthy controls. We established several automated unbiased methods to comprehensively analyze microvessels and somatosensory receptors as well as barrier proteins, including claudin-1, claudin-5, and claudin-19. Meissner corpuscles in the skin were bilaterally reduced in acute CRPS patients with some of them lacking these completely. The number of Merkel cells and the intraepidermal nerve fiber density were not different between the groups. Dermal papillary microvessels were bilaterally less abundant in CRPS, especially in patients with allodynia. Barrier proteins in keratinocytes, perineurium of dermal nerves, Schwann cells, and papillary microvessels were not affected in early CRPS. Bilateral changes in the tissue architecture in early CRPS might indicate a predisposition for CRPS that manifests after injury. Further studies should evaluate whether these changes might be used to identify risk patients for CRPS after trauma and as biomarkers for outcome.
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Affiliation(s)
- Katharina Mehling
- Department of Anesthesiology, Intensive Care, Emergency and Pain Medicine, Center for Interdisciplinary Pain Medicine, University Hospital Würzburg, Würzburg, Germany
| | - Juliane Becker
- Department of Anesthesiology, Intensive Care, Emergency and Pain Medicine, Center for Interdisciplinary Pain Medicine, University Hospital Würzburg, Würzburg, Germany
| | - Jeremy Chen
- Department of Anesthesiology, Intensive Care, Emergency and Pain Medicine, Center for Interdisciplinary Pain Medicine, University Hospital Würzburg, Würzburg, Germany
| | - Sabrina Scriba
- Department of Anesthesiology, Intensive Care, Emergency and Pain Medicine, Center for Interdisciplinary Pain Medicine, University Hospital Würzburg, Würzburg, Germany
| | - Gudrun Kindl
- Department of Anesthesiology, Intensive Care, Emergency and Pain Medicine, Center for Interdisciplinary Pain Medicine, University Hospital Würzburg, Würzburg, Germany
| | - Rafael Jakubietz
- Department Surgery II, University Hospital Würzburg, Würzburg, Germany
| | - Claudia Sommer
- Department of Neurology, University Hospital Würzburg, Würzburg, Germany
| | - Beate Hartmannsberger
- Department of Anesthesiology, Intensive Care, Emergency and Pain Medicine, Center for Interdisciplinary Pain Medicine, University Hospital Würzburg, Würzburg, Germany
| | - Heike L. Rittner
- Department of Anesthesiology, Intensive Care, Emergency and Pain Medicine, Center for Interdisciplinary Pain Medicine, University Hospital Würzburg, Würzburg, Germany
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Rimal R, Muduli S, Desai P, Marquez AB, Möller M, Platzman I, Spatz J, Singh S. Vascularized 3D Human Skin Models in the Forefront of Dermatological Research. Adv Healthc Mater 2024; 13:e2303351. [PMID: 38277705 DOI: 10.1002/adhm.202303351] [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: 10/02/2023] [Revised: 12/04/2023] [Indexed: 01/28/2024]
Abstract
In vitro engineered skin models are emerging as an alternative platform to reduce and replace animal testing in dermatological research. Despite the progress made in recent years, considerable challenges still exist for the inclusion of diverse cell types within skin models. Blood vessels, in particular, are essential in maintaining tissue homeostasis and are one of many primary contributors to skin disease inception and progression. Substantial efforts in the past have allowed the successful fabrication of vascularized skin models that are currently utilized for disease modeling and drugs/cosmetics testing. This review first discusses the need for vascularization within tissue-engineered skin models, highlighting their role in skin grafting and disease pathophysiology. Second, the review spotlights the milestones and recent progress in the fabrication and utilization of vascularized skin models. Additionally, advances including the use of bioreactors, organ-on-a-chip devices, and organoid systems are briefly explored. Finally, the challenges and future outlook for vascularized skin models are addressed.
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Affiliation(s)
- Rahul Rimal
- Max-Planck-Institute for Medical Research, Jahnstrasse 29, 69120, Heidelberg, Germany
- DWI Leibniz Institute for Interactive Materials e.V, RWTH Aachen University, Forckenbeckstrasse 50, 52074, Aachen, Germany
| | - Saradaprasan Muduli
- Max-Planck-Institute for Medical Research, Jahnstrasse 29, 69120, Heidelberg, Germany
| | - Prachi Desai
- DWI Leibniz Institute for Interactive Materials e.V, RWTH Aachen University, Forckenbeckstrasse 50, 52074, Aachen, Germany
| | - Andrea Bonnin Marquez
- DWI Leibniz Institute for Interactive Materials e.V, RWTH Aachen University, Forckenbeckstrasse 50, 52074, Aachen, Germany
| | - Martin Möller
- DWI Leibniz Institute for Interactive Materials e.V, RWTH Aachen University, Forckenbeckstrasse 50, 52074, Aachen, Germany
| | - Ilia Platzman
- Max-Planck-Institute for Medical Research, Jahnstrasse 29, 69120, Heidelberg, Germany
- Institute for Molecular Systems Engineering and Advanced Materials (IMSEAM), Heidelberg University, Im Neuenheimer Feld 225, 69120, Heidelberg, Germany
| | - Joachim Spatz
- Max-Planck-Institute for Medical Research, Jahnstrasse 29, 69120, Heidelberg, Germany
- Institute for Molecular Systems Engineering and Advanced Materials (IMSEAM), Heidelberg University, Im Neuenheimer Feld 225, 69120, Heidelberg, Germany
- Max Planck School Matter to Life, Jahnstrasse 29, 69120, Heidelberg, Germany
| | - Smriti Singh
- Max-Planck-Institute for Medical Research, Jahnstrasse 29, 69120, Heidelberg, Germany
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3
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Tang L, Gao J, Li X, Cao X, Zhou B. Molecular Mechanisms of Luteolin Against Atopic Dermatitis Based on Network Pharmacology and in vivo Experimental Validation. Drug Des Devel Ther 2022; 16:4205-4221. [PMID: 36530790 PMCID: PMC9748122 DOI: 10.2147/dddt.s387893] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Accepted: 11/26/2022] [Indexed: 08/03/2023] Open
Abstract
PURPOSE To undercover the underlying mechanisms of luteolin against atopic dermatitis (AD), clinically characterized by recurrent eczematous lesions and intense itching, based on network pharmacology, molecular docking and in vivo experimental validation. METHODS TCMSP, STITCH and SwissTargetPrediction databases were utilized to screen the corresponding targets of luteolin. Targets related to AD were collected from DisGeNET, GeneCards and TTD databases. PPI network of intersection targets was constructed through STRING 11.0 database and Cytoscape 3.9.0 software. GO and KEGG enrichment analysis were performed to investigate the critical pathways of luteolin against AD. Further, the therapeutic effects and candidate targets/signaling pathways predicted from network pharmacology analysis were experimentally validated in a mouse model of AD induced by 2, 4-dinitrofluorobenzene (DNFB). RESULTS A total of 31 intersection targets were obtained by matching 151 targets of luteolin with 553 targets of AD. Among all, 20 core targets were identified by PPI network topology analysis, including IL-6, TNF, IL-10, VEGFA, IL-4, etc., and molecular docking indicated that luteolin binds strongly to these core targets. KEGG pathway enrichment analysis suggested that the intersected targets were significantly enriched in IL-17 signaling pathway, Th17 cell differentiation, Th1 and Th2 cell differentiation, JAK/STAT signaling pathway, etc. The in vivo experiment validated that luteolin could alleviate AD-like skin symptoms, as evidenced by the lower SCORAD score, the reduced infiltration of mast cells and the recovery of skin barrier function. Furthermore, luteolin restored immune balance by regulating the production of Th1/Th2/Th17-mediated cytokines, which were both the predicted core targets. Moreover, luteolin inhibited the phosphorylation of JAK2 and STAT3 in the lesional skin. CONCLUSION Together, the present study systematically clarifies the ameliorative effects and possible molecular mechanisms of luteolin against AD through the combination of network pharmacology and experimental validation, shedding light on the future development and clinical application of luteolin.
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Affiliation(s)
- Liu Tang
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, People’s Republic of China
| | - Jiefang Gao
- School of Pharmaceutical Sciences, Wuhan University, Wuhan, People’s Republic of China
| | - Xiaolei Li
- School of Pharmaceutical Sciences, Wuhan University, Wuhan, People’s Republic of China
| | - Xiaoqin Cao
- School of Medicine, Jianghan University, Wuhan, People’s Republic of China
| | - Benhong Zhou
- Department of Pharmacy, Renmin Hospital of Wuhan University, Wuhan, People’s Republic of China
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Sung B, Baek YY, Kim YM, You JC. Topical Administration of a Novel Acetylated Tetrapeptide Suppresses Vascular Permeability and Immune Responses and Alleviates Atopic Dermatitis in a Murine Model. Int J Mol Sci 2022; 23:ijms232113498. [PMID: 36362286 PMCID: PMC9658216 DOI: 10.3390/ijms232113498] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/25/2022] [Accepted: 11/01/2022] [Indexed: 11/06/2022] Open
Abstract
Although the pathogenesis of atopic dermatitis (AD) remains to be fully deciphered, skin barrier abnormality and immune dysregulation are known to be involved. Recently, the vascular endothelial growth factor (VEGF)/VEGF receptor (VEGFR) system has also been implicated in the pathogenesis of this multifactorial chronic inflammatory skin disorder. Previously, we showed that a novel tetrapeptide, N-acetyl-Arg-Leu-Tyr-Glu (Ac-RLYE), inhibits angiogenesis and vascular permeability effectively by selectively antagonizing VEGFR-2. The current study aimed to investigate the pharmacological effect of Ac-RLYE on AD in vitro and in vivo. The in vitro experiments demonstrated that Ac-RLYE inhibited VEGF-induced vascular permeability in endothelial cells. Moreover, in an in vivo animal model of AD, Ac-RLYE relieved AD-like symptoms such as ear thickness and dermatitis severity scores and infiltration of immune cells, including mast cells and eosinophils. Ac-RLYE inhibited IgE secretion, restored the skin barrier protein filaggrin level, and markedly downregulated gene expression of AD-related Th1, Th2, and Th17 cytokines. Collectively, these findings suggest that Ac-RLYE would be useful for the treatment of AD and associated inflammatory skin disorders.
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Affiliation(s)
- Bokyung Sung
- Avixgen Inc., 2477, Nambusunhwan-ro, Seocho-gu, Seoul 06725, Korea
| | - Yi-Yong Baek
- Avixgen Inc., 2477, Nambusunhwan-ro, Seocho-gu, Seoul 06725, Korea
| | - Young-Myeong Kim
- Department of Molecular and Cellular Biochemistry, School of Medicine, Kangwon National University, Chuncheon 24341, Korea
| | - Ji Chang You
- Avixgen Inc., 2477, Nambusunhwan-ro, Seocho-gu, Seoul 06725, Korea
- National Research Laboratory for Molecular Virology, Department of Pathology, School of Medicine, The Catholic University of Korea, Seoul 06591, Korea
- Correspondence:
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5
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Alsabbagh M, Ismaeel A. The role of cytokines in atopic dermatitis: a breakthrough in immunopathogenesis and treatment. ACTA DERMATOVENEROLOGICA ALPINA PANNONICA ET ADRIATICA 2022. [DOI: 10.15570/actaapa.2022.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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6
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Quadri M, Lotti R, Bonzano L, Ciardo S, Guanti MB, Pellacani G, Pincelli C, Marconi A. A Novel Multi-Action Emollient Plus Cream Improves Skin Barrier Function in Patients with Atopic Dermatitis: In vitro and Clinical Evidence. Skin Pharmacol Physiol 2021; 34:8-18. [PMID: 33601378 DOI: 10.1159/000513055] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 11/13/2020] [Indexed: 11/19/2022]
Abstract
BACKGROUND Emollients capable of restoring the skin barrier function would extend their role beyond basic maintenance therapy in atopic dermatitis (AD). OBJECTIVES Investigate the effect of a novel emollient plus cream (EC; Dermoflan®) on the skin barrier in vitro and in patients with mild-to-moderate AD. METHODS The effect of EC on the skin barrier recovery was evaluated using a tape-stripping (TS) model. After TS, organ cultures were treated with EC (undiluted or diluted 1:1 with water) and analyzed at 18-120 h using hematoxylin and eosin, Oil Red O, immunohistochemical, and immunofluorescent techniques. In a double-blind, randomized study, EC or placebo was applied once daily for 2 months to antecubital folds of the upper and lower limbs of patients with mild-to-moderate AD in clinical remission. Epidermal thickness, vascularization, and epidermal hydration were assessed by optical coherence tomography and corneometry, respectively, at baseline, and 1 and 2 months following treatment initiation. RESULTS Following TS, EC treatment significantly increased epidermal thickness and lipid content versus diluent in the skin organ culture, as well as claudin-1, involucrin, and caspase-14 expression, suggesting skin barrier repair. EC treatment also decreased keratin-16 expression and increased levels of Toll-like receptors 1 and 2 versus diluent, suggesting involvement in regulating the epidermal immune response. In 20 patients randomized 1:1 to EC or placebo, EC treatment at the elbow fold/popliteal fossa significantly decreased epidermal thickness after 2 months, and the number of blood vessels at the elbow fold after 1 and 2 months, versus placebo. EC significantly improved the skin hydration after 2 months versus baseline. CONCLUSIONS This novel multi-action EC may help to restore epidermal homeostasis and improve the skin of patients with AD. Results indicate that this novel multi-action EC could be a valid adjuvant therapy in patients with AD. Key Message: Novel multi-action emollient cream helps to restore epidermal homeostasis and improves the skin affected by AD.
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Affiliation(s)
- Marika Quadri
- Department of Surgical, Medical, Dental, and Morphological Sciences, Dermolab, University of Modena and Reggio Emilia, Modena, Italy,
| | - Roberta Lotti
- Department of Surgical, Medical, Dental, and Morphological Sciences, Dermolab, University of Modena and Reggio Emilia, Modena, Italy
| | - Laura Bonzano
- Department of Surgical, Medical, Dental, and Morphological Sciences, Dermatology Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - Silvana Ciardo
- Department of Surgical, Medical, Dental, and Morphological Sciences, Dermatology Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - Mario Bruno Guanti
- Department of Surgical, Medical, Dental, and Morphological Sciences, Dermatology Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - Giovanni Pellacani
- Department of Surgical, Medical, Dental, and Morphological Sciences, Dermatology Unit, University of Modena and Reggio Emilia, Modena, Italy
| | - Carlo Pincelli
- Department of Surgical, Medical, Dental, and Morphological Sciences, Dermolab, University of Modena and Reggio Emilia, Modena, Italy
| | - Alessandra Marconi
- Department of Surgical, Medical, Dental, and Morphological Sciences, Dermolab, University of Modena and Reggio Emilia, Modena, Italy
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7
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McGraw MD, Kim SY, White CW, Veress LA. Acute cytotoxicity and increased vascular endothelial growth factor after in vitro nitrogen mustard vapor exposure. Ann N Y Acad Sci 2020; 1479:223-233. [PMID: 32408394 DOI: 10.1111/nyas.14367] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Revised: 04/09/2020] [Accepted: 04/20/2020] [Indexed: 12/20/2022]
Abstract
Nitrogen mustard (NM) is a highly toxic alkylating agent. Inhalation exposure can cause acute and chronic lung injury. This study's aims were to develop an in vitro coculture model of mustard-induced airway injury and to identify growth factors contributing to airway pathology. Primary human bronchial epithelial cells cultured with pulmonary endothelial cells were exposed to NM (25, 50, 100, 250, or 500 μM) or PBS (control) for 1 hour. Lactate dehydrogenase (LDH) and transepithelial electrical resistance (TEER) were measured before and 24 h after NM exposure. Fixed cultures were stained for hematoxylin and eosin or live/dead staining. Culture media were analyzed for 11 growth factors. A 1-h vapor exposure to greater than or equal to 50 μM NM increased supernatant LDH, decreased TEER, and caused airway epithelial cell detachment. Endothelial cell death occurred at 500 μM NM. Vascular endothelial growth factor A (VEGF-A) and placental growth factor (PlGF) expression increased in 500 μM NM-exposed cultures compared with PBS-exposed control cultures. NM vapor exposure causes differential cytotoxicity to airway epithelial and endothelial injury in culture. Increased VEGF-A and PlGF expression occurred acutely in airway cocultures. Future studies are required to validate the role of VEGF signaling in mustard-induced airway pathology.
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Affiliation(s)
- Matthew D McGraw
- Department of Pediatric Pulmonology, University of Rochester Medical Center, Rochester, New York.,Department of Environmental Medicine, University of Rochester Medical Center, Rochester, New York
| | - So-Young Kim
- Department of Pediatric Pulmonology, University of Rochester Medical Center, Rochester, New York
| | - Carl W White
- Department of Pediatrics, Pulmonology Section, Pediatric Airway Research Center, University of Colorado Denver, Aurora, Colorado
| | - Livia A Veress
- Department of Pediatrics, Pulmonology Section, Pediatric Airway Research Center, University of Colorado Denver, Aurora, Colorado
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Liu X, Michael S, Bharti K, Ferrer M, Song MJ. A biofabricated vascularized skin model of atopic dermatitis for preclinical studies. Biofabrication 2020; 12:035002. [PMID: 32059197 DOI: 10.1088/1758-5090/ab76a1] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Three-dimensional (3D) biofabrication techniques enable the production of multicellular tissue models as assay platforms for drug screening. The increased cellular and physiological complexity in these 3D tissue models should recapitulate the relevant biological environment found in the body. Here we describe the use of 3D bioprinting techniques to fabricate skin equivalent tissues of varying physiological complexity, including human epidermis, non-vascularized and vascularized full-thickness skin tissue equivalents, in a multi-well platform to enable drug screening. Human keratinocytes, fibroblasts, and pericytes, and induced pluripotent stem cell-derived endothelial cells were used in the biofabrication process to produce the varying complexity. The skin equivalents exhibit the correct structural markers of dermis and epidermis stratification, with physiological functions of the skin barrier. The robustness, versatility and reproducibility of the biofabrication techniques are further highlighted by the generation of atopic dermatitis (AD)-disease like tissues. These AD models demonstrate several clinical hallmarks of the disease, including: (i) spongiosis and hyperplasia; (ii) early and terminal expression of differentiation proteins; and (iii) increases in levels of pro-inflammatory cytokines. We show the pre-clinical relevance of the biofabricated AD tissue models to correct disease phenotype by testing the effects of dexamethasone, an anti-inflammatory corticosteroid, and three Janus Kinase inhibitors from clinical trials for AD. This study demonstrates the development of a versatile and reproducible bioprinting approach to create human skin equivalents with a range of cellular complexity for disease modeling. In addition, we establish several assay readouts that are quantifiable, robust, AD relevant, and can be scaled up for compound screening. The results show that the cellular complexity of the tissues develops a more physiologically relevant AD disease model. Thus, the skin models in this study offer an in vitro approach for the rapid understanding of pathological mechanisms, and testing for efficacy of action and toxic effects of drugs.
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Affiliation(s)
- Xue Liu
- National Center for Advancing Translational Sciences, National Institute of Health, Rockville, MD, United States of America
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9
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Heo MJ, Lee C, Choi SY, Choi YM, An IS, Bae S, An S, Jung JH. Nintedanib ameliorates animal model of dermatitis. Sci Rep 2020; 10:4493. [PMID: 32161331 PMCID: PMC7066145 DOI: 10.1038/s41598-020-61424-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2019] [Accepted: 02/20/2020] [Indexed: 02/06/2023] Open
Abstract
Nintedanib, a receptor tyrosine kinase (RTK) inhibitor has been developed as therapeutics for idiopathic pulmonary fibrosis and non-small lung cancer. We found that the expression levels of RTK, especially VEGFR1 is increased in skin biopsies of dermatitis patients from multiple independent datasets. Moreover, VEGFR1 is highly expressed by infiltrated cells in dermis from oxazolone (OXA) treated mice. Interestingly, nintedanib alleviates dermatitis symptom in OXA-induced animal model. Especially, levels of epidermis thickness, infiltrated immune cells including mast cells and eosinophils were decreased from mice cotreated with nintedanib and OXA compared with OXA treated mice. Moreover, serum IgE and Th2 cytokines including IL-4 and IL-13 were decreased by nintedanib treatment. These results suggest an evidence that nintedanib alleviates animal model of dermatitis.
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Affiliation(s)
- Min-Jeong Heo
- Korea Institute of Dermatological Science, GeneCellPharm Corporation, 375 Munjeong 2(i)-dong, Songpa-gu, Seoul, 05836, South Korea
| | - Chanmi Lee
- Korea Institute of Dermatological Science, GeneCellPharm Corporation, 375 Munjeong 2(i)-dong, Songpa-gu, Seoul, 05836, South Korea
| | - Soo Young Choi
- Korea Institute of Dermatological Science, GeneCellPharm Corporation, 375 Munjeong 2(i)-dong, Songpa-gu, Seoul, 05836, South Korea
| | - Yeong Min Choi
- Korea Institute of Dermatological Science, GeneCellPharm Corporation, 375 Munjeong 2(i)-dong, Songpa-gu, Seoul, 05836, South Korea
| | - In-Sook An
- Korea Institute of Dermatological Science, GeneCellPharm Corporation, 375 Munjeong 2(i)-dong, Songpa-gu, Seoul, 05836, South Korea
| | - Seunghee Bae
- Research Institute for Molecular-Targeted Drugs, Department of Cosmetics Engineering, Konkuk University, Seoul, 05029, South Korea
| | - Sungkwan An
- Research Institute for Molecular-Targeted Drugs, Department of Cosmetics Engineering, Konkuk University, Seoul, 05029, South Korea.
| | - Jin Hyuk Jung
- Korea Institute of Dermatological Science, GeneCellPharm Corporation, 375 Munjeong 2(i)-dong, Songpa-gu, Seoul, 05836, South Korea.
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Kalailingam P, Tan HB, Jain N, Sng MK, Chan JSK, Tan NS, Thanabalu T. Conditional knock out of N-WASP in keratinocytes causes skin barrier defects and atopic dermatitis-like inflammation. Sci Rep 2017; 7:7311. [PMID: 28779153 PMCID: PMC5544743 DOI: 10.1038/s41598-017-07125-8] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Accepted: 06/22/2017] [Indexed: 01/11/2023] Open
Abstract
Neural-Wiskott Aldrich Syndrome Protein (N-WASP) is expressed ubiquitously and regulates actin cytoskeleton remodeling. In order to characterize the role of N-WASP in epidermal homeostasis and cutaneous biology, we generated conditional N-WASP knockout mouse using CK14-cre (cytokeratin 14) to ablate expression of N-WASP in keratinocytes. N-WASPK14KO (N-WASPfl/fl; CK14-Cre) mice were born following Mendelian genetics suggesting that N-WASP expression in keratinocytes is not essential during embryogenesis. N-WASPK14KO mice exhibited stunted growth, alopecia, dry and wrinkled skin. The dry skin in N-WASPK14KO mice is probably due to increased transepidermal water loss (TEWL) caused by barrier function defects as revealed by dye penetration assay. N-WASPK14KO mice developed spontaneous inflammation in the neck and face 10 weeks after birth. Histological staining revealed thickening of the epidermis, abnormal cornified layer and extensive infiltration of immune cells (mast cells, eosinophils and T-lymphocytes) in N-WASPK14KO mice skin compared to control mice. N-WASPK14KO mice had higher serum levels of IL-1α, TNF-α, IL-6 and IL-17 compared to control mice. Thus our results suggest that conditional N-WASP knockout in keratinocytes leads to compromised skin barrier, higher infiltration of immune cells and hyperproliferation of keratinocytes due to increased production of cytokines highlighting the importance of N-WASP in maintaining the skin homeostasis.
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Affiliation(s)
- Pazhanichamy Kalailingam
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Republic of Singapore
| | - Hui Bing Tan
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Republic of Singapore
| | - Neeraj Jain
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Republic of Singapore
| | - Ming Keat Sng
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Republic of Singapore.,Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Avenue, Singapore, 636921, Republic of Singapore
| | - Jeremy Soon Kiat Chan
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Republic of Singapore
| | - Nguan Soon Tan
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Republic of Singapore.,Lee Kong Chian School of Medicine, Nanyang Technological University, 59 Nanyang Avenue, Singapore, 636921, Republic of Singapore.,Institute of Molecular and Cell Biology, 61 Biopolis Drive, Singapore, 138673, Republic of Singapore.,KK Women's and Children's Hospital, 100 Bukit Timah Road, Singapore, 229899, Republic of Singapore
| | - Thirumaran Thanabalu
- School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore, 637551, Republic of Singapore.
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Samochocki Z, Bogaczewicz J, Sysa-Jędrzejowska A, McCauliffe DP, Kontny E, Wozniacka A. Expression of vascular endothelial growth factor and other cytokines in atopic dermatitis, and correlation with clinical features. Int J Dermatol 2015; 55:e141-6. [DOI: 10.1111/ijd.13132] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Revised: 05/03/2015] [Accepted: 06/10/2015] [Indexed: 11/29/2022]
Affiliation(s)
| | - Jarosław Bogaczewicz
- Department of Dermatology and Venereology; Medical University of Lodz; Lodz Poland
| | | | - Daniel P. McCauliffe
- Department of Dermatology; University of North Carolina; Chapel Hill NC USA
- Private Practice; Rutland VT USA
| | - Ewa Kontny
- Department of Pathophysiology and Immunology; Institute of Rheumatology; Warsaw Poland
| | - Anna Wozniacka
- Department of Dermatology and Venereology; Medical University of Lodz; Lodz Poland
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12
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Varricchi G, Granata F, Loffredo S, Genovese A, Marone G. Angiogenesis and lymphangiogenesis in inflammatory skin disorders. J Am Acad Dermatol 2015; 73:144-53. [PMID: 25922287 DOI: 10.1016/j.jaad.2015.03.041] [Citation(s) in RCA: 119] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2015] [Revised: 03/18/2015] [Accepted: 03/20/2015] [Indexed: 02/07/2023]
Abstract
Angiogenesis, the growth of new blood vessels from pre-existing vessels, occurs physiologically in wound healing, during inflammatory diseases, and in tumor growth. Lymphangiogenesis can be activated in inflammation and tumor metastasis. The family of vascular endothelial growth factors (VEGFs) and angiopoietins are essential for angiogenesis and lymphangiogenesis. The angiogenic process is tightly regulated by VEGFs, angiopoietins, and endogenous inhibitors. VEGFs and angiopoietins exert their effects by activating specific receptors present on blood and lymphatic endothelial cells. There is now compelling evidence that cells of innate and adaptive immunity (macrophages, mast cells, neutrophils, eosinophils, lymphocytes) are a major source of angiogenic and lymphangiogenic factors. Chronic inflammatory skin diseases such as psoriasis and atopic dermatitis are characterized by altered angiogenesis, lymphangiogenesis, or both. Also such acute inflammatory skin disorders as urticaria, ultraviolet B-induced damage, and angioedema are associated with changes in angiogenic factors. In systemic sclerosis there is a switch from proangiogenic to antiangiogenic factors that play a role in the defective vascular process of this disorder. As yet, there are no clinical trials showing that canonical VEGF/VEGF receptor-targeted strategies can modulate inflammatory skin diseases. Novel strategies targeting other angiogenic/lymphangiogenic pathways should also be investigated.
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Affiliation(s)
- Gilda Varricchi
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples, Naples, Italy
| | - Francescopaolo Granata
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples, Naples, Italy
| | - Stefania Loffredo
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples, Naples, Italy
| | - Arturo Genovese
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples, Naples, Italy
| | - Gianni Marone
- Department of Translational Medical Sciences and Center for Basic and Clinical Immunology Research (CISI), University of Naples, Naples, Italy.
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Wang H, Baran U, Wang RK. In vivo blood flow imaging of inflammatory human skin induced by tape stripping using optical microangiography. JOURNAL OF BIOPHOTONICS 2015; 8:265-72. [PMID: 24659511 PMCID: PMC4308563 DOI: 10.1002/jbio.201400012] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2014] [Revised: 02/25/2014] [Accepted: 02/27/2014] [Indexed: 05/03/2023]
Abstract
Vasculature response is a hallmark for most inflammatory skin disorders. Tape stripping on human skin causes a minor inflammation which leads to changes in microvasculature. In this study, optical microangiography (OMAG), noninvasive volumetric microvasculature in vivo imaging method, has been used to track the vascular responses after tape stripping. Vessel density has been quantified and used to correlate with the degree of skin irritation. The proved capability of OMAG technique in visualizing the microvasculature network under inflamed skin condition can play an important role in clinical trials of treatment and diagnosis of inflammatory skin disorders.
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Affiliation(s)
- Hequn Wang
- Department of Bioengineering, University of Washington, Seattle, WA, USA
| | - Utku Baran
- Department of Electrical Engineering, University of Washington, Seattle, WA, USA
| | - Ruikang K. Wang
- Department of Bioengineering, University of Washington, Seattle, WA, USA
- Department of Electrical Engineering, University of Washington, Seattle, WA, USA
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Shi VY, Bao L, Chan LS. Inflammation-driven dermal lymphangiogenesis in atopic dermatitis is associated with CD11b+ macrophage recruitment and VEGF-C up-regulation in the IL-4-transgenic mouse model. Microcirculation 2013; 19:567-79. [PMID: 22574929 DOI: 10.1111/j.1549-8719.2012.00189.x] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE To investigate the presence and extent of inflammatory lymphangiogenesis in AD and determine the role of IL-4 in lymphatic proliferation in both K14-IL-4 Tg mouse model of AD and cultured human epidermal cells. METHODS Skin tissues from Tg mice were collected for immunostaining against PDPN, LYVE-1, CD11b and VEGF-C. The regulation of specific lymphatic biomarkers and growth factors were determined using qPCR and Western Blot analyses. Dermal lymphatic uptake and drainage were assessed using intradermal EB dye micro-injections. Total RNA from IL-4-stimulated HaCaT cells was analyzed in a PCR array to evaluate the regulation of lymphangiogenic-related genes. RESULTS Prominent dermal microvascular lymphangiogenesis occurs in the Tg mice, characterized by a significant increase in number and caliber of the vasculature. The extent of both lymphatic proliferation and drainage parallels the progression of lesion severity, as does the up-regulation of pro-lymphangiogenic factors VEGF-C, VEGFR-3, ANG-1, and ANG-2. IL-4-stimulated HaCaT cells express high levels of MCP-1, a strong macrophage chemo-attractant. Additionally, Tg mice show significantly increased number of dermal CD11b+ macrophages expressing VEGF-C in the skin. CONCLUSIONS Our results provide the first demonstration of inflammation-mediated lymphangiogenesis in AD and that IL-4 triggered macrophage recruitment may be closely linked to this phenomenon.
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Affiliation(s)
- Vivian Y Shi
- Department of Dermatology, University of Illinois College of Medicine, Chicago, Illinois 60612, USA
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Increased plasma concentration of vascular endothelial growth factor in patients with atopic dermatitis and its relation to disease severity and platelet activation. Inflamm Res 2012; 61:1405-9. [PMID: 22915086 PMCID: PMC3496523 DOI: 10.1007/s00011-012-0543-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2012] [Revised: 07/15/2012] [Accepted: 07/31/2012] [Indexed: 01/15/2023] Open
Abstract
Background Overproduction of vascular endothelial growth factor (VEGF) in atopic dermatitis (AD) lesions has previously been observed. It is also known that platelet is an important source of VEGF and platelet factor 4 (PF-4), a potential marker of AD severity. Aim To evaluate concentrations of VEGF and its soluble receptors (sVEGF-R1 and sVEGF-R2) in the plasma of AD patients and to examine its possible correlation with disease severity and plasma concentrations of PF-4, a platelet activation marker. Methods Plasma concentrations of VEGF and its receptors and levels of PF-4 were measured by an immunoenzymatic assay in 51 AD patients and in 35 healthy non-atopic controls. The severity of the disease was evaluated using the eczema area and severity index. Results AD patients showed significantly increased VEGF and PF-4 plasma concentrations as compared with the controls. Plasma concentrations of sVEGF-R1 and sVEGF-R2 did not differ between the groups. There were no remarkable correlations between plasma VEGF concentration and disease severity or between VEGF and PF-4 concentration. Conclusions This study shows that plasma concentration of VEGF may be increased in patients suffering from AD. It seems that plasma VEGF concentration is not a useful marker of disease severity and, apart from platelets, other cells might also release the cytokine.
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Abstract
The blood and lymphatic vasculature have an important role in skin homeostasis. Angiogenesis and lymphangiogenesis-the growth of new vessels from existing ones-have received tremendous interest because of their role in promoting cancer spread. However, there is increasing evidence that both vessel types also have a major role in acute and chronic inflammatory disorders. Vessels change their phenotype during inflammation (vascular remodeling). In inflamed skin, vascular remodeling consists of a hyperpermeable, enlarged network of vessels with increased blood flow, and influx of inflammatory cells. During chronic inflammation, the activated endothelium expresses adhesion molecules, cytokines, and other molecules that lead to leukocyte rolling, attachment, and migration into the skin. Recent studies reveal that inhibition of blood vessel activation exerts potent anti-inflammatory properties. Thus, anti-angiogenic drugs might be used to treat inflammatory conditions. In particular, topical application of anti-angiogenic drugs might be ideally suited to circumvent the adverse effects of systemic therapy with angiogenesis inhibitors. Our recent results indicate that stimulation of lymphatic vessel growth and function unexpectedly represents a new approach for treating chronic inflammatory disorders.
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Hůlková H, Poupětová H, Harzer K, Mistry P, Aerts JMFG, Elleder M. Abnormal nonstoring capillary endothelium: a novel feature of Gaucher disease. Ultrastructural study of dermal capillaries. J Inherit Metab Dis 2010; 33:69-78. [PMID: 20049530 PMCID: PMC2828558 DOI: 10.1007/s10545-009-9018-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2009] [Revised: 10/30/2009] [Accepted: 11/10/2009] [Indexed: 01/05/2023]
Abstract
Ultrastructural study of skin biopsies in two cases of Gaucher disease (GD) patients (types II and III) revealed hitherto unknown alteration of the blood capillary endothelial cells (ECs) featured by hypertrophy and numerous subplasmalemmal microvesicles underneath both the apical and basal membranes. There was also prominent apical membrane folding with formation of filiform and large cytoplasmic projections, with occasional transcapillary cytoplasmic bridges. Similar, though less frequently expressed, changes were manifested at the basal membrane by numerous cytoplasmic projections into the subendothelial space. Regressive changes with EC breakdown were rare. Lysosomal storage was always absent. Besides EC hypertrophy, there was also increased EC density in the capillary lumen, leading to pronounced changes in capillary architecture with loose or incomplete EC anchoring. There were also signs of EC sprouting. Some pericytes displayed an increase in size and number of cytoplasmic processes, which often extended into distant pericapillary regions. The spectrum of changes suggests that a significant positive growth effect on EC occurs in GD. The putative mechanisms triggered by GBA1 deficiency leading to EC involvement are discussed. The authors are well aware of the fact the results, based on a nontraditional type of bioptic samples, are preliminary, but they are worth following, as further ultrastructural and functional studies of blood endothelium in GD may open a novel field in molecular cell pathophysiology of the disorder: endothelial dysfunction.
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Affiliation(s)
- Helena Hůlková
- 1st Faculty of Medicine and General Teaching Hospital, Institute of Inherited Metabolic Disorders, Charles University in Prague, Ke Karlovu 2, Bldg. D, 12000 Praha 2, Czech Republic
| | - Helena Poupětová
- 1st Faculty of Medicine and General Teaching Hospital, Institute of Inherited Metabolic Disorders, Charles University in Prague, Ke Karlovu 2, Bldg. D, 12000 Praha 2, Czech Republic
| | - Klaus Harzer
- Department of Pediatrics and Child Development, Universitäts-Kinderklinik, Tübingen, Germany
| | - Pramod Mistry
- Section of Pediatric Hepatology and Gastroenterology, Department of Pediatrics and Medicine, Yale School of Medicine, New Haven, CT USA
| | - Johannes M. F. G. Aerts
- Department of Medical Biochemistry, Academic Medical Center, University of Amsterdam, 1105 AZ Amsterdam, The Netherlands
| | - Milan Elleder
- 1st Faculty of Medicine and General Teaching Hospital, Institute of Inherited Metabolic Disorders, Charles University in Prague, Ke Karlovu 2, Bldg. D, 12000 Praha 2, Czech Republic
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18
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Laquer V, Hoang V, Nguyen A, Kelly KM. Angiogenesis in cutaneous disease: part II. J Am Acad Dermatol 2009; 61:945-58; quiz 959-60. [PMID: 19925925 DOI: 10.1016/j.jaad.2009.05.053] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2009] [Revised: 05/05/2009] [Accepted: 05/06/2009] [Indexed: 11/25/2022]
Abstract
UNLABELLED This review will discuss the role of angiogenesis in specific cutaneous diseases. Scientific evidence now points to the role of angiogenesis in tumor development and many other cutaneous disorders. Angiogenesis is a complex process that involves angiogenic growth factors and inhibitors, many of which could be a potential target for pharmacologic intervention. Antiangiogenic agents have recently been applied to dermatologic diseases with promising efficacy. LEARNING OBJECTIVES After completing this learning activity, participants should be able to recognize cutaneous diseases where angiogenesis is likely to be an important factor, recognize scenarios where angiogenic therapy may be useful in conjunction with traditional therapies, and be able to use angiogenic-mediating agents in the treatment of dermatologic disease.
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Affiliation(s)
- Vivian Laquer
- Columbia University College of Physicians, New York, New York, USA
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Maniatis NA, Shinin V, Schraufnagel DE, Okada S, Vogel SM, Malik AB, Minshall RD. Increased pulmonary vascular resistance and defective pulmonary artery filling in caveolin-1-/- mice. Am J Physiol Lung Cell Mol Physiol 2008; 294:L865-73. [PMID: 18192592 PMCID: PMC9819781 DOI: 10.1152/ajplung.00079.2007] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Caveolin-1, the structural and signaling protein of caveolae, is an important negative regulator of endothelial nitric oxide synthase (eNOS). We observed that mice lacking caveolin-1 (Cav1(-/-)) had twofold increased plasma NO levels but developed pulmonary hypertension. We measured pulmonary vascular resistance (PVR) and assessed alterations in small pulmonary arteries to determine the basis of the hypertension. PVR was 46% greater in Cav1(-/-) mice than wild-type (WT), and increased PVR in Cav1(-/-) mice was attributed to precapillary sites. Treatment with NG-nitro-l-arginine methyl ester (l-NAME) to inhibit NOS activity raised PVR by 42% in WT but 82% in Cav1(-/-) mice, indicating greater NO-mediated pulmonary vasodilation in Cav1(-/-) mice compared with WT. Pulmonary vasculature of Cav1(-/-) mice was also less reactive to the vasoconstrictor thromboxane A2 mimetic (U-46619) compared with WT. We observed redistribution of type I collagen and expression of smooth muscle alpha-actin in lung parenchyma of Cav1(-/-) mice compared with WT suggestive of vascular remodeling. Fluorescent agarose casting also showed markedly decreased density of pulmonary arteries and artery filling defects in Cav1(-/-) mice. Scanning electron microscopy showed severely distorted and tortuous pulmonary precapillary vessels. Thus caveolin-1 null mice have elevated PVR that is attributed to remodeling of pulmonary precapillary vessels. The elevated basal plasma NO level in Cav1(-/-) mice compensates partly for the vascular structural abnormalities by promoting pulmonary vasodilation.
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Affiliation(s)
- Nikolaos A. Maniatis
- Department of Pharmacology, University of Illinois Chicago, Illinois,Department of Medicine, University of Illinois Chicago, Illinois
| | - Vasily Shinin
- Department of Pharmacology, University of Illinois Chicago, Illinois
| | - Dean E. Schraufnagel
- Department of Medicine, University of Illinois Chicago, Illinois,Department of Pathology, University of Illinois Chicago, Illinois
| | - Shigenori Okada
- Department of Medicine, University of Illinois Chicago, Illinois
| | - Stephen M. Vogel
- Department of Pharmacology, University of Illinois Chicago, Illinois,The Center for Lung and Vascular Biology, University of Illinois Chicago, Illinois
| | - Asrar B. Malik
- Department of Pharmacology, University of Illinois Chicago, Illinois,The Center for Lung and Vascular Biology, University of Illinois Chicago, Illinois
| | - Richard D. Minshall
- Department of Pharmacology, University of Illinois Chicago, Illinois,Department of Anesthesiology, University of Illinois Chicago, Illinois,The Center for Lung and Vascular Biology, University of Illinois Chicago, Illinois
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Fischer C, Schneider M, Carmeliet P. Principles and therapeutic implications of angiogenesis, vasculogenesis and arteriogenesis. Handb Exp Pharmacol 2006:157-212. [PMID: 16999228 DOI: 10.1007/3-540-36028-x_6] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The vasculature is the first organ to arise during development. Blood vessels run through virtually every organ in the body (except the avascular cornea and the cartilage), assuring metabolic homeostasis by supplying oxygen and nutrients and removing waste products. Not surprisingly therefore, vessels are critical for organ growth in the embryo and for repair of wounded tissue in the adult. Notably, however, an imbalance in angiogenesis (the growth of blood vessels) contributes to the pathogenesis of numerous malignant, inflammatory, ischaemic, infectious and immune disorders. During the last two decades, an explosive interest in angiogenesis research has generated the necessary insights to develop the first clinically approved anti-angiogenic agents for cancer and blindness. This novel treatment is likely to change the face of medicine in the next decade, as over 500 million people worldwide are estimated to benefit from pro- or anti-angiogenesis treatment. In this following chapter, we discuss general key angiogenic mechanisms in health and disease, and highlight recent developments and perspectives of anti-angiogenic therapeutic strategies.
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Affiliation(s)
- C Fischer
- Centre for Transgene Technology and Gene Therapy, Flanders Interuniversity Institute for Biotechnology, KULeuven, Campus Gasthuisberg, Herestraat 49, 3000 Leuven, Belgium
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