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Wang A, Zhang H, Li X, Zhao Y. Annexin A1 in the nervous and ocular systems. Neural Regen Res 2024; 19:591-597. [PMID: 37721289 PMCID: PMC10581565 DOI: 10.4103/1673-5374.380882] [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: 02/15/2023] [Revised: 05/06/2023] [Accepted: 06/02/2023] [Indexed: 09/19/2023] Open
Abstract
The therapeutic potential of Annexin A1, an important member of the Annexin superfamily, has become evident in results of experiments with multiple human systems and animal models. The anti-inflammatory and pro-resolving effects of Annexin A1 are characteristic of pathologies involving the nervous system. In this review, we initially describe the expression sites of Annexin A1, then outline the mechanisms by which Annexin A1 maintains the neurological homeostasis through either formyl peptide receptor 2 or other molecular approaches; and, finally, we discuss the neuroregenerative potential qualities of Annexin A1. The eye and the nervous system are anatomically and functionally connected, but the association between visual system pathogenesis, especially in the retina, and Annexin A1 alterations has not been well summarized. Therefore, we explain the beneficial effects of Annexin A1 for ocular diseases, especially for retinal diseases and glaucoma on the basis of published findings, and we explore present and future delivery strategies for Annexin A1 to the retina.
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Affiliation(s)
- Aijia Wang
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Hong Zhang
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Xing Li
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
| | - Yin Zhao
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Hubei Province, China
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2
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de Melo IS, Sabino-Silva R, Costa MA, Vaz ER, Anselmo-E-Silva CI, de Paula Soares Mendonça T, Oliveira KB, de Souza FMA, Dos Santos YMO, Pacheco ALD, Freitas-Santos J, Caixeta DC, Goulart LR, de Castro OW. N-Formyl-Methionyl-Leucyl-Phenylalanine Plays a Neuroprotective and Anticonvulsant Role in Status Epilepticus Model. Cell Mol Neurobiol 2023; 43:4231-4244. [PMID: 37742326 DOI: 10.1007/s10571-023-01410-z] [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: 05/10/2023] [Accepted: 08/31/2023] [Indexed: 09/26/2023]
Abstract
Status epilepticus (SE) is described as continuous and self-sustaining seizures, which triggers hippocampal neurodegeneration, inflammation, and gliosis. N-formyl peptide receptor (FPR) has been associated with inflammatory process. N-formyl-methionyl-leucyl-phenylalanine (fMLP) peptide plays an anti-inflammatory role, mediated by the activation of G-protein-coupled FPR. Here, we evaluated the influence of fMLP peptides on the behavior of limbic seizures, memory consolidation, and hippocampal neurodegeneration process. Male Wistar rats (Rattus norvegicus) received microinjections of pilocarpine in hippocampus (H-PILO, 1.2 mg/μL, 1 μL) followed by fMLP (1 mg/mL, 1 μL) or vehicle (VEH, saline 0.9%, 1 μL). During the 90 min of SE, epileptic seizures were analyzed according to the Racine's Scale. After 24 h of SE, memory impairment was assessed by the inhibitory avoidance test and the neurodegeneration process was evaluated in hippocampal areas. There was no change in latency and number of wet dog shake (WDS) after administration of fMLP. However, our results showed that the intrahippocampal infusion of fMLP reduced the severity of seizures, as well as the number of limbic seizures. In addition, fMLP infusion protected memory dysfunction followed by SE. Finally, the intrahippocampal administration of fMLP attenuated the process of neurodegeneration in both hippocampi. Taken together, our data suggest a new insight into the functional role of fMLP peptides, with important implications for their potential use as a therapeutic agent for the treatment of brain disorders, such as epilepsy. Schematic drawing on the neuroprotective and anticonvulsant role of fMLP during status epilepticus. Initially, a cannula was implanted in hippocampus and pilocarpine/saline was administered into the hippocampus followed by fMLP/saline (A-C). fMLP reduced seizure severity and neuronal death in the hippocampus, as well as protecting against memory deficit (D).
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Affiliation(s)
- Igor Santana de Melo
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Av. Lourival de Melo Mota, Km 14, Campus A. C. Simões, Cidade Universitária, Maceió, AL, CEP 57072-970, Brazil.
| | - Robinson Sabino-Silva
- Department of Physiology, Innovation Center in Salivary Diagnostic and Nanotheranostics, Institute of Biomedical Sciences (ICBIM), Federal University of Uberlandia (UFU), Av. Pará, 1720, Uberlandia, MG, CEP 38400-902, Brazil.
| | - Maisa Araújo Costa
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Av. Lourival de Melo Mota, Km 14, Campus A. C. Simões, Cidade Universitária, Maceió, AL, CEP 57072-970, Brazil
| | - Emília Rezende Vaz
- Institute of Biotechnology, Federal University of Uberlandia, Minas Gerais, Brazil
| | | | | | - Kellysson Bruno Oliveira
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Av. Lourival de Melo Mota, Km 14, Campus A. C. Simões, Cidade Universitária, Maceió, AL, CEP 57072-970, Brazil
| | - Fernanda Maria Araújo de Souza
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Av. Lourival de Melo Mota, Km 14, Campus A. C. Simões, Cidade Universitária, Maceió, AL, CEP 57072-970, Brazil
| | - Yngrid Mickaelli Oliveira Dos Santos
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Av. Lourival de Melo Mota, Km 14, Campus A. C. Simões, Cidade Universitária, Maceió, AL, CEP 57072-970, Brazil
| | - Amanda Larissa Dias Pacheco
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Av. Lourival de Melo Mota, Km 14, Campus A. C. Simões, Cidade Universitária, Maceió, AL, CEP 57072-970, Brazil
| | - Jucilene Freitas-Santos
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Av. Lourival de Melo Mota, Km 14, Campus A. C. Simões, Cidade Universitária, Maceió, AL, CEP 57072-970, Brazil
| | - Douglas Carvalho Caixeta
- Department of Physiology, Innovation Center in Salivary Diagnostic and Nanotheranostics, Institute of Biomedical Sciences (ICBIM), Federal University of Uberlandia (UFU), Av. Pará, 1720, Uberlandia, MG, CEP 38400-902, Brazil
| | - Luiz Ricardo Goulart
- Institute of Biotechnology, Federal University of Uberlandia, Minas Gerais, Brazil
| | - Olagide Wagner de Castro
- Institute of Biological Sciences and Health, Federal University of Alagoas (UFAL), Av. Lourival de Melo Mota, Km 14, Campus A. C. Simões, Cidade Universitária, Maceió, AL, CEP 57072-970, Brazil.
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Huang X, Wu L, Pei T, Liu D, Liu C, Luo B, Xiao L, Li Y, Wang R, Ouyang Y, Zhu H, Huang W. Single-cell transcriptome analysis reveals endometrial immune microenvironment in minimal/mild endometriosis. Clin Exp Immunol 2023; 212:285-295. [PMID: 36869723 PMCID: PMC10243848 DOI: 10.1093/cei/uxad029] [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: 07/18/2022] [Revised: 02/15/2023] [Accepted: 03/01/2023] [Indexed: 03/05/2023] Open
Abstract
Endometriosis is a common inflammatory disorder in women of reproductive age due to an abnormal endometrial immune environment and is associated with infertility. This study aimed to systematically understand the endometrial leukocyte types, inflammatory environment, and impaired receptivity at single-cell resolution. We profiled single-cell RNA transcriptomes of 138 057 endometrial cells from endometriosis patients (n = 6) and control (n = 7), respectively, using 10x Genomics platform. We found that one cluster of epithelial cells that expressed PAEP and CXCL14 was mostly from the control during the window of implantation (WOI). This epithelial cell type is absent in the eutopic endometrium during the secretory phase. The proportion of endometrial immune cells decreased in the secretory phase in the control group, whereas the cycle variation of total immune cells, NK cells, and T cells was absent in endometriosis. Endometrial immune cells secreted more IL-10 in the secretory phase than in the proliferative phase in the control group; the opposite trend was observed in endometriosis. Proinflammatory cytokines levels in the endometrial immune cells were higher in endometriosis than in the control group. Trajectory analysis revealed that the secretory phase epithelial cells decreased in endometriosis. Ligand-receptor analysis revealed that 11 ligand-receptor pairs were upregulated between endometrial immune and epithelial cells during WOI. These results provide new insights into the endometrial immune microenvironment and impaired endometrial receptivity in infertile women with minimal/mild endometriosis.
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Affiliation(s)
- Xin Huang
- Division of Reproductive Medicine, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Chengdu, Sichuan, China
- NHC Key Laboratory of Chronobiology (Sichuan University), Chengdu, Sichuan, China
| | - Lukanxuan Wu
- Division of Reproductive Medicine, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Chengdu, Sichuan, China
- NHC Key Laboratory of Chronobiology (Sichuan University), Chengdu, Sichuan, China
| | - Tianjiao Pei
- Division of Reproductive Medicine, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Chengdu, Sichuan, China
- NHC Key Laboratory of Chronobiology (Sichuan University), Chengdu, Sichuan, China
| | - Dong Liu
- Division of Reproductive Medicine, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Chengdu, Sichuan, China
| | - Chang Liu
- Division of Reproductive Medicine, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Chengdu, Sichuan, China
| | - Bin Luo
- Division of Reproductive Medicine, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Chengdu, Sichuan, China
| | - Li Xiao
- Division of Reproductive Medicine, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Chengdu, Sichuan, China
| | - Yujing Li
- Division of Reproductive Medicine, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Chengdu, Sichuan, China
- NHC Key Laboratory of Chronobiology (Sichuan University), Chengdu, Sichuan, China
| | - Ruiying Wang
- Division of Reproductive Medicine, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Chengdu, Sichuan, China
- NHC Key Laboratory of Chronobiology (Sichuan University), Chengdu, Sichuan, China
| | - Yunwei Ouyang
- Division of Reproductive Medicine, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Chengdu, Sichuan, China
| | - Huili Zhu
- Division of Reproductive Medicine, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Chengdu, Sichuan, China
| | - Wei Huang
- Division of Reproductive Medicine, West China Second University Hospital of Sichuan University, Chengdu, Sichuan, China
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Chengdu, Sichuan, China
- NHC Key Laboratory of Chronobiology (Sichuan University), Chengdu, Sichuan, China
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Zheng Y, Li Y, Li S, Hu R, Zhang L. Annexin A1 (Ac2-26)-dependent Fpr2 receptor alleviates sepsis-induced acute kidney injury by inhibiting inflammation and apoptosis in vivo and in vitro. Inflamm Res 2023; 72:347-362. [PMID: 36544058 PMCID: PMC9925514 DOI: 10.1007/s00011-022-01640-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 09/02/2022] [Accepted: 09/07/2022] [Indexed: 12/24/2022] Open
Abstract
OBJECTIVES Excessive inflammatory responses and apoptosis are critical pathologies that contribute to sepsis-induced acute kidney injury (SI-AKI). Annexin A1 (ANXA1), a member of the calcium-dependent phospholipid-binding protein family, protects against SI-AKI through its anti-inflammatory and antiapoptotic effects, but the underlying mechanisms are still largely unknown. METHODS In vivo, SI-AKI mouse models were established via caecal ligation and puncture (CLP) and were then treated with the Ac2-26 peptide of ANXA1 (ANXA1 (Ac2-26)), WRW4 (Fpr2 antagonist) or both. In vitro, HK-2 cells were induced by lipopolysaccharide (LPS) and then treated with ANXA1 (Ac2-26), Fpr2-siRNA or both. RESULTS In the present study, we found that the expression levels of ANXA1 were decreased, and the expression levels of TNF-α, IL-1β, IL-6, cleaved caspase-3, cleaved caspase-8 and Bax were significantly increased, accompanied by marked kidney tissue apoptosis in vivo. Moreover, we observed that ANXA1 (Ac2-26) significantly reduced the levels of TNF-α, IL-1β and IL-6 and cleaved caspase-3, cleaved caspase-8, FADD and Bax and inhibited apoptosis in kidney tissue and HK-2 cells, accompanied by pathological damage to kidney tissue. Seven-day survival, kidney function and cell viability were significantly improved in vivo and in vitro, respectively. Furthermore, the administration of ANXA1 (Ac2-26) inhibited the CLP- or LPS-induced phosphorylation of PI3K and AKT and downregulated the level of NF-κB in vivo and in vitro. Moreover, our data demonstrate that blocking the Fpr2 receptor by the administration of WRW4 or Fpr2-siRNA reversed the abovementioned regulatory role of ANXA1, accompanied by enhanced phosphorylation of PI3K and AKT and upregulation of the level of NF-κB in vivo and in vitro. CONCLUSIONS Taken together, this study provides evidence that the protective effect of ANXA1 (Ac2-26) on SI-AKI largely depends on the negative regulation of inflammation and apoptosis via the Fpr2 receptor.
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Affiliation(s)
- Yanlei Zheng
- Department of Critical Care Medicine, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430079 China
| | - Yan Li
- Department of Critical Care Medicine, Xiangyang Central Hospital, Xiangyang, 440121 China
| | - Shi Li
- Department of Critical Care Medicine, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430079 China
| | - Ronghua Hu
- Department of Critical Care Medicine, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430079 China
| | - Li Zhang
- Department of Critical Care Medicine, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430079, China.
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André da Silva R, Moraes de Paiva Roda V, Philipe de Souza Ferreira L, Oliani SM, Paula Girol A, Gil CD. Annexins as potential targets in ocular diseases. Drug Discov Today 2022; 27:103367. [PMID: 36165812 DOI: 10.1016/j.drudis.2022.103367] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 08/05/2022] [Accepted: 09/14/2022] [Indexed: 11/20/2022]
Abstract
Annexins (AnxAs) are Ca2+/phospholipid-binding proteins extensively studied and generally involved in several diseases. Although evidence exists regarding the distribuition of AnxAs in the visual system, their exact roles and the exact cell types of the eye where these proteins are expressed are not well-understood. AnxAs have pro-resolving roles in infectious, autoimmune, degenerative, fibrotic and angiogenic conditions, making them an important target in ocular tissue homeostasis. This review summarizes the current knowledge on the distribution and function of AnxA1-8 isoforms under normal and pathological conditions in the visual system, as well as perspectives for ophthalmologic treatments, including the potential use of the AnxA1 recombinant and/or its mimetic peptide Ac2-26.
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Affiliation(s)
- Rafael André da Silva
- Biosciences Graduate Program, Institute of Biosciences, Letters and Exact Sciences, Universidade Estadual Paulista (UNESP), São José do Rio Preto, SP 15054-000, Brazil
| | - Vinicius Moraes de Paiva Roda
- Life Systems Biology Graduate Program, Institute of Biomedical Sciences, Universidade de São Paulo (USP), São Paulo, SP 05508-000, Brazil
| | - Luiz Philipe de Souza Ferreira
- Structural and Functional Biology Graduate Program, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP 04023-900, Brazil
| | - Sonia M Oliani
- Biosciences Graduate Program, Institute of Biosciences, Letters and Exact Sciences, Universidade Estadual Paulista (UNESP), São José do Rio Preto, SP 15054-000, Brazil; Structural and Functional Biology Graduate Program, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP 04023-900, Brazil; Advanced Research Center in Medicine (CEPAM) Unilago, São José do Rio Preto, SP 15030-070, Brazil
| | - Ana Paula Girol
- Biosciences Graduate Program, Institute of Biosciences, Letters and Exact Sciences, Universidade Estadual Paulista (UNESP), São José do Rio Preto, SP 15054-000, Brazil; Structural and Functional Biology Graduate Program, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP 04023-900, Brazil; Centro Universitário Padre Albino (UNIFIPA), Catanduva, SP 15809-144, Brazil
| | - Cristiane D Gil
- Biosciences Graduate Program, Institute of Biosciences, Letters and Exact Sciences, Universidade Estadual Paulista (UNESP), São José do Rio Preto, SP 15054-000, Brazil; Structural and Functional Biology Graduate Program, Universidade Federal de São Paulo (UNIFESP), São Paulo, SP 04023-900, Brazil.
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6
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Fernandez-Torres MA, Lledó VE, Perez de Lara MJ, Guzman-Aranguez A. Effects of hyperosmolarity on annexin A1 on ocular surface epithelium in vitro. Exp Eye Res 2022; 224:109245. [PMID: 36087761 DOI: 10.1016/j.exer.2022.109245] [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: 06/23/2022] [Revised: 08/15/2022] [Accepted: 09/02/2022] [Indexed: 11/28/2022]
Abstract
Osmotic stress is an important challenge to cell function. Dry eye pathology is characterized by elevated tear film osmolarity as consequence of decreased tear secretion and/or increased evaporation. Dry eye pathogenesis is not completely clarified. However, it is known that tear hyperosmolarity induces NLRP3 (nucleotide-binding oligomerization domain-like receptor family, pyrin domain-cointaining 3) inflammasome activation and inflammatory mediators release that leads to ocular surface damage. Annexin A1 is a protein involved in anti-inflammatory or pro-resolution actions in different tissues while its presence and biological role on ocular surface has been scarcely examined. In this study, potential changes in annexin A1 protein expression and secretion on the ocular surface after exposure to hyperosmolar conditions were evaluated. In addition, considering the significant role of inflammation in dry eye pathology, the potential anti-inflammatory activity of Ac2-26, an annexin A1 peptide mimicking its N-terminus, was assessed. Cytosolic and membrane staining was detected for annexin A1 in corneal and conjunctival epithelial cells. A native form of annexin A1 together with a truncated form were detected by western blot analysis. Under hyperosmotic conditions increased protein levels of intracellular and secreted annexin A1 as well as higher expression of its receptor Fpr2 (formyl peptide receptor type 2) were found. Treatment with mimetic peptide Ac2-26 ameliorated NLRP3 activation and interleukin 1β (IL-1β) release triggered by elevated osmolarity in corneal and conjunctival epithelial cells. These findings suggest a potential role of annexin A1 and its mimetic peptide modulating key inflammatory events associated to dry eye.
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Affiliation(s)
- Miguel Angel Fernandez-Torres
- Department of Biochemistry and Molecular Biology, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Victoria Eugenia Lledó
- Department of Biochemistry and Molecular Biology, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Maria J Perez de Lara
- Department of Biochemistry and Molecular Biology, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain
| | - Ana Guzman-Aranguez
- Department of Biochemistry and Molecular Biology, Faculty of Optics and Optometry, Universidad Complutense de Madrid, Madrid, Spain.
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Zhao R, Han W, Tang K, Shao R, Zhu P, Zhang S, Xu P, He Y. Function of normal oral mucosa revealed by single-cell RNA sequencing. J Cell Biochem 2022; 123:1481-1494. [PMID: 35894175 DOI: 10.1002/jcb.30307] [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: 05/01/2022] [Revised: 06/11/2022] [Accepted: 07/08/2022] [Indexed: 11/10/2022]
Abstract
The functions of oral mucosa include barrier, sensation, and secretion. The barrier protection function is particularly important, which includes physical barrier and immunological barrier. Few studies have revealed the function of oral mucosa by displaying the map of normal oral mucosal cells from the perspective of single cells. Here, single-cell transcriptome sequencing was used to bring a relatively comprehensive map of the normal oral mucosal cells. In total, 26,398 cells from three cases of normal oral mucosa were analyzed by single-cell RNA-sequencing and 14 distinct cell groups were defined, 7 of which were immune cells. We performed subgroup classification and heterogeneity analysis of epithelial cells, T cells, and macrophagocytes, which found a subpopulation of epithelial cells with high expression of major histocompatibility complex class II molecules, a subpopulation CD8+ GZMK+ T cells, and two kinds of active macrophagocytes. Meanwhile, we identified ligand-receptor pairs among the major cell types to explore the interactions and how they maintain the homeostasis of normal oral mucosa. Based on these results, the epithelial barrier function, immunological barrier function, and potential maintenance function of stromal cells in the oral mucosa were described at the single-cell level, which provides basic data resources for further studies of oral mucosal diseases.
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Affiliation(s)
- Ruowen Zhao
- Department of Oral Medicine, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Wenhao Han
- Department of Gastroenterology, Shanghai 10th People's Hospital & School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Kailin Tang
- Department of Gastroenterology, Shanghai 10th People's Hospital & School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Ruru Shao
- Department of Oral Medicine, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Pingyi Zhu
- Department of Oral Medicine, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Shi Zhang
- Department of Oral Medicine, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Pan Xu
- Department of Oral Medicine, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Yuan He
- Department of Oral Medicine, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
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Single-cell atlas of keratoconus corneas revealed aberrant transcriptional signatures and implicated mechanical stretch as a trigger for keratoconus pathogenesis. Cell Discov 2022; 8:66. [PMID: 35821117 PMCID: PMC9276680 DOI: 10.1038/s41421-022-00397-z] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 03/15/2022] [Indexed: 12/22/2022] Open
Abstract
Keratoconus is a common ectatic corneal disorder in adolescents and young adults that can lead to progressive visual impairment or even legal blindness. Despite the high prevalence, its etiology is not fully understood. In this study, we performed single-cell RNA sequencing (scRNA-Seq) analysis on 39,214 cells from central corneas of patients with keratoconus and healthy individuals, to define the involvement of each cell type during disease progression. We confirmed the central role of corneal stromal cells in this disease, where dysregulation of collagen and extracellular matrix (ECM) occurred. Differential gene expression and histological analyses revealed two potential novel markers for keratoconus stromal cells, namely CTSD and CTSK. Intriguingly, we detected elevated levels of YAP1 and TEAD1, the master regulators of biomechanical homeostasis, in keratoconus stromal cells. Cyclical mechanical experiments implicated the mechanical stretch in prompting protease production in corneal stromal cells during keratoconus progression. In the epithelial cells of keratoconus corneas, we observed reduced basal cells and abnormally differentiated superficial cells, unraveling the corneal epithelial lesions that were usually neglected in clinical diagnosis. In addition, several elevated cytokines in immune cells of keratoconus samples supported the involvement of inflammatory response in the progression of keratoconus. Finally, we revealed the dysregulated cell-cell communications in keratoconus, and found that only few ligand-receptor interactions were gained but a large fraction of interactional pairs was erased in keratoconus, especially for those related to protease inhibition and anti-inflammatory process. Taken together, this study facilitates the understanding of molecular mechanisms underlying keratoconus pathogenesis, providing insights into keratoconus diagnosis and potential interventions.
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ANNEXIN A1: Roles in Placenta, Cell Survival, and Nucleus. Cells 2022; 11:cells11132057. [PMID: 35805141 PMCID: PMC9266233 DOI: 10.3390/cells11132057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 06/21/2022] [Accepted: 06/23/2022] [Indexed: 01/27/2023] Open
Abstract
The unbiased approaches of the last decade have enabled the collection of new data on the biology of annexin A1 (ANXA1) in a variety of scientific aspects, creating opportunities for new biomarkers and/or therapeutic purposes. ANXA1 is found in the plasma membrane, cytoplasm, and nucleus, being described at low levels in the nuclear and cytoplasmic compartments of placental cells related to gestational diabetic diseases, and its translocation from the cytoplasm to the nucleus has been associated with a response to DNA damage. The approaches presented here open pathways for reflection upon, and intrinsic clarification of, the modulating action of this protein in the response to genetic material damage, as well as its level of expression and cellular localization. The objective of this study is to arouse interest, with an emphasis on the mechanisms of nuclear translocation of ANXA1, which remain underexplored and may be beneficial in new inflammatory therapies.
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Pharmacological treatment with annexin A1-derived peptide protects against cisplatin-induced hearing loss. Toxicol Lett 2022; 363:27-35. [PMID: 35561849 DOI: 10.1016/j.toxlet.2022.05.001] [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: 11/30/2021] [Revised: 04/11/2022] [Accepted: 05/02/2022] [Indexed: 11/20/2022]
Abstract
Cisplatin is an antineoplastic agent widely used, and no effective treatments capable of preventing cisplatin-induced ototoxicity and neurotoxicity in humans have yet been identified. This study evaluated the effect of the anti-inflammatory annexin A1 (AnxA1)-derived peptide Ac2-26 in a cisplatin-induced ototoxicity model. Wistar rats received intraperitoneal injections of cisplatin (10mg/kg/day) for 3 days to induce hearing loss, and Ac2-26 (1mg/kg) was administered 15minutes before cisplatin administration. Control animals received an equal volume of saline. Hearing thresholds were measured by distortion product otoacoustic emissions (DPOAE) before and after treatments. Pharmacological treatment with Ac2-26 protected against cisplatin-induced hearing loss, as evidenced by DPOAE results showing similar signal-noise ratios between the control and Ac2-26-treated groups. These otoprotective effects of Ac2-26 were associated with an increased number of ganglion neurons compared with the untreated cisplatin group. Additionally, Ac2-26 treatment produced reduced immunoreactivity on cleaved caspase 3 and phosphorylated ERK levels in the ganglion neurons, compared to the untreated group, supporting the neuroprotective effects of the Ac2-26. Our results suggest that Ac2-26 has a substantial otoprotective effect in this cisplatin-induced ototoxicity model mediated by neuroprotection and the regulation of the ERK pathway.
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Effects of Formyl Peptide Receptor Agonists Ac9-12 and WKYMV in In Vivo and In Vitro Acute Inflammatory Experimental Models. Cells 2022; 11:cells11020228. [PMID: 35053343 PMCID: PMC8773544 DOI: 10.3390/cells11020228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 12/16/2021] [Accepted: 01/04/2022] [Indexed: 11/24/2022] Open
Abstract
Formyl peptide receptors (Fprs) are a G-protein-coupled receptor family mainly expressed on leukocytes. The activation of Fpr1 and Fpr2 triggers a cascade of signaling events, leading to leukocyte migration, cytokine release, and increased phagocytosis. In this study, we evaluate the effects of the Fpr1 and Fpr2 agonists Ac9-12 and WKYMV, respectively, in carrageenan-induced acute peritonitis and LPS-stimulated macrophages. Peritonitis was induced in male C57BL/6 mice through the intraperitoneal injection of 1 mL of 3% carrageenan solution or saline (control). Pre-treatments with Ac9-12 and WKYMV reduced leukocyte influx to the peritoneal cavity, particularly neutrophils and monocytes, and the release of IL-1β. The addition of the Fpr2 antagonist WRW4 reversed only the anti-inflammatory actions of WKYMV. In vitro, the administration of Boc2 and WRW4 reversed the effects of Ac9-12 and WKYMV, respectively, in the production of IL-6 by LPS-stimulated macrophages. These biological effects of peptides were differently regulated by ERK and p38 signaling pathways. Lipidomic analysis evidenced that Ac9-12 and WKYMV altered the intracellular lipid profile of LPS-stimulated macrophages, revealing an increased concentration of several glycerophospholipids, suggesting regulation of inflammatory pathways triggered by LPS. Overall, our data indicate the therapeutic potential of Ac9-12 and WKYMV via Fpr1 or Fpr2-activation in the inflammatory response and macrophage activation.
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12
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Girol AP, de Freitas Zanon C, Caruso ÍP, de Souza Costa S, Souza HR, Cornélio ML, Oliani SM. Annexin A1 Mimetic Peptide and Piperlongumine: Anti-Inflammatory Profiles in Endotoxin-Induced Uveitis. Cells 2021; 10:3170. [PMID: 34831393 PMCID: PMC8625584 DOI: 10.3390/cells10113170] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2021] [Revised: 10/27/2021] [Accepted: 10/28/2021] [Indexed: 12/23/2022] Open
Abstract
Uveitis is one of the main causes of blindness worldwide, and therapeutic alternatives are worthy of study. We investigated the effects of piperlongumine (PL) and/or annexin A1 (AnxA1) mimetic peptide Ac2-26 on endotoxin-induced uveitis (EIU). Rats were inoculated with lipopolysaccharide (LPS) and intraperitoneally treated with Ac2-26 (200 µg), PL (200 and 400 µg), or Ac2-26 + PL after 15 min. Then, 24 h after LPS inoculation, leukocytes in aqueous humor, mononuclear cells, AnxA1, formyl peptide receptor (fpr)1, fpr2, and cyclooxygenase (COX)-2 were evaluated in the ocular tissues, along with inflammatory mediators in the blood and macerated supernatant. Decreased leukocyte influx, levels of inflammatory mediators, and COX-2 expression confirmed the anti-inflammatory actions of the peptide and pointed to the protective effects of PL at higher dosage. However, when PL and Ac2-26 were administered in combination, the inflammatory potential was lost. AnxA1 expression was elevated among groups treated with PL or Ac2-26 + PL but reduced after treatment with Ac2-26. Fpr2 expression was increased only in untreated EIU and Ac2-26 groups. The interaction between Ac2-26 and PL negatively affected the anti-inflammatory action of Ac2-26 or PL. We emphasize that the anti-inflammatory effects of PL can be used as a therapeutic strategy to protect against uveitis.
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Affiliation(s)
- Ana Paula Girol
- Department of Physical and Morphological Sciences, University Center Padre Albino (UNIFIPA), Catanduva 15809-144, SP, Brazil; (A.P.G.); (S.d.S.C.); (H.R.S.)
- Department of Biology, Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University, (UNESP), São José do Rio Preto 15054-000, SP, Brazil;
- Post Graduate Program in Structural and Functional Biology, Escola Paulista de Medicina (UNIFESP-EPM), Federal University of São Paulo, São Paulo 04023-062, SP, Brazil
| | - Caroline de Freitas Zanon
- Department of Biology, Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University, (UNESP), São José do Rio Preto 15054-000, SP, Brazil;
| | - Ícaro Putinhon Caruso
- Department of Phisics, Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University, (UNESP), São José do Rio Preto 15054-000, SP, Brazil; (Í.P.C.); (M.L.C.)
| | - Sara de Souza Costa
- Department of Physical and Morphological Sciences, University Center Padre Albino (UNIFIPA), Catanduva 15809-144, SP, Brazil; (A.P.G.); (S.d.S.C.); (H.R.S.)
- Department of Biology, Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University, (UNESP), São José do Rio Preto 15054-000, SP, Brazil;
| | - Helena Ribeiro Souza
- Department of Physical and Morphological Sciences, University Center Padre Albino (UNIFIPA), Catanduva 15809-144, SP, Brazil; (A.P.G.); (S.d.S.C.); (H.R.S.)
- Department of Biology, Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University, (UNESP), São José do Rio Preto 15054-000, SP, Brazil;
| | - Marinônio Lopes Cornélio
- Department of Phisics, Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University, (UNESP), São José do Rio Preto 15054-000, SP, Brazil; (Í.P.C.); (M.L.C.)
| | - Sonia Maria Oliani
- Department of Biology, Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University, (UNESP), São José do Rio Preto 15054-000, SP, Brazil;
- Post Graduate Program in Structural and Functional Biology, Escola Paulista de Medicina (UNIFESP-EPM), Federal University of São Paulo, São Paulo 04023-062, SP, Brazil
- Advanced Research Center in Medicine (CEPAM), União das Faculdades dos Grandes Lagos (Unilago), São José do Rio Preto 15030-070, SP, Brazil
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13
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Rajani HF, Shahidi S, Gomari MM. Protein and Antibody Engineering: Suppressing Degranulation of the Mast Cells and Type I Hypersensitivity Reaction. Curr Protein Pept Sci 2021; 21:831-841. [PMID: 32392111 DOI: 10.2174/1389203721666200511094717] [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: 01/10/2020] [Revised: 03/09/2020] [Accepted: 04/23/2020] [Indexed: 11/22/2022]
Abstract
With an increase in atopic cases and owing to a significant role of mast cells in type I hypersensitivity, a therapeutic need to inhibit degranulation of mast cells has risen. Mast cells are notorious for IgE-mediated allergic response. Advancements have allowed researchers to improve clinical outcomes of already available therapies. Engineered peptides and antibodies can be easily manipulated to attain desired characteristics as per the biological environment. A number of these molecules are designed to target mast cells in order to regulate the release of histamine and other mediators, thereby controlling type I hypersensitivity response. The aim of this review paper is to highlight some of the significant molecules designed for the purpose.
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Affiliation(s)
- Huda Fatima Rajani
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical
Sciences, Tehran, Iran
| | - Solmaz Shahidi
- Department of Clinical Biochemistry, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Mahmoudi Gomari
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical
Sciences, Tehran, Iran
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14
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Calvello R, Cianciulli A, Porro C, Moda P, De Nuccio F, Nicolardi G, Giannotti L, Panaro MA, Lofrumento DD. Formyl Peptide Receptor (FPR)1 Modulation by Resveratrol in an LPS-Induced Neuroinflammatory Animal Model. Nutrients 2021; 13:nu13051418. [PMID: 33922475 PMCID: PMC8147048 DOI: 10.3390/nu13051418] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 04/17/2021] [Accepted: 04/21/2021] [Indexed: 12/11/2022] Open
Abstract
Among therapeutic approaches that have been investigated, targeting of receptors implicated in managing neuroinflammation has been described. One such family of receptors comprises the formyl peptide receptors (FPRs) whose ligands could play a role in host defense. The murine FPR gene family includes at least six members while in humans there are only three. The two most important members are the Fpr1 and Fpr2. Fpr1encodes murine FPR1, which is considered the murine orthologue of human FPR. Resveratrol, a non-flavonoid polyphenol rich in red wine and grapes, apart from its beneficial health effects and anti-inflammatory properties, has been reported to reduce neuroinflammation in different neurodegenerative disease models. Resveratrol anti-inflammatory responses involve the activation of the protein deacetylase sirtuin 1 (SIRT1) gene. In this work we have investigated in an LPS-based murine model of neuroinflammation the role of FPR1, examining not only if this receptor undergoes a reduction of its expression during neuroinflammation, but also whether treatment with resveratrol was able to modulate its expression leading to an amelioration of neuroinflammatory picture in a murine model of neuroinflammation. Results of this work showed that FPR1 together with SIRT1 resulted upregulated by resveratrol treatment and that this increase is associated with an amelioration of the neuroinflammatory picture, as demonstrated by the induction of IL-10 and IL1-RA expression and the downregulation of proinflammatory mediators, such as TNF-α and IL-1β. The expression and the modulation of FPR1 by resveratrol may be evaluated in order to propose a novel anti-inflammatory and pro-resolving therapeutic approach for the reduction of the detrimental effects associated with neuro-inflammation based neurodegenerative diseases and also as a promising strategy to promote human health by a diet rich in antioxidative bioactive compounds.
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Affiliation(s)
- Rosa Calvello
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, I-70125 Bari, Italy; (R.C.); (A.C.)
| | - Antonia Cianciulli
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, I-70125 Bari, Italy; (R.C.); (A.C.)
| | - Chiara Porro
- Department of Clinical and Experimental Medicine, University of Foggia, I-71100 Foggia, Italy;
| | - Piergianni Moda
- Nuclear Medicine Department, SS. Annunziata Hospital, I-74100 Taranto, Italy;
| | - Francesco De Nuccio
- Department of Biological and Environmental Sciences and Technologies, Section of Human Anatomy, University of Salento, I-73100 Lecce, Italy; (F.D.N.); (G.N.); (L.G.); (D.D.L.)
| | - Giuseppe Nicolardi
- Department of Biological and Environmental Sciences and Technologies, Section of Human Anatomy, University of Salento, I-73100 Lecce, Italy; (F.D.N.); (G.N.); (L.G.); (D.D.L.)
| | - Laura Giannotti
- Department of Biological and Environmental Sciences and Technologies, Section of Human Anatomy, University of Salento, I-73100 Lecce, Italy; (F.D.N.); (G.N.); (L.G.); (D.D.L.)
| | - Maria Antonietta Panaro
- Department of Biosciences, Biotechnologies and Biopharmaceutics, University of Bari, I-70125 Bari, Italy; (R.C.); (A.C.)
- Correspondence:
| | - Dario Domenico Lofrumento
- Department of Biological and Environmental Sciences and Technologies, Section of Human Anatomy, University of Salento, I-73100 Lecce, Italy; (F.D.N.); (G.N.); (L.G.); (D.D.L.)
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15
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Novizio N, Belvedere R, Pessolano E, Tosco A, Porta A, Perretti M, Campiglia P, Filippelli A, Petrella A. Annexin A1 Released in Extracellular Vesicles by Pancreatic Cancer Cells Activates Components of the Tumor Microenvironment, through Interaction with the Formyl-Peptide Receptors. Cells 2020; 9:cells9122719. [PMID: 33353163 PMCID: PMC7767312 DOI: 10.3390/cells9122719] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 12/12/2020] [Accepted: 12/17/2020] [Indexed: 12/21/2022] Open
Abstract
Pancreatic cancer (PC) is one of the most aggressive cancers in the world. Several extracellular factors are involved in its development and metastasis to distant organs. In PC, the protein Annexin A1 (ANXA1) appears to be overexpressed and may be identified as an oncogenic factor, also because it is a component in tumor-deriving extracellular vesicles (EVs). Indeed, these microvesicles are known to nourish the tumor microenvironment. Once we evaluated the autocrine role of ANXA1-containing EVs on PC MIA PaCa-2 cells and their pro-angiogenic action, we investigated the ANXA1 paracrine effect on stromal cells like fibroblasts and endothelial ones. Concerning the analysis of fibroblasts, cell migration/invasion, cytoskeleton remodeling, and the different expression of specific protein markers, all features of the cell switching into myofibroblasts, were assessed after administration of wild type more than ANXA1 Knock-Out EVs. Interestingly, we demonstrated a mechanism by which the ANXA1-EVs complex can stimulate the activation of formyl peptide receptors (FPRs), triggering mesenchymal switches and cell motility on both fibroblasts and endothelial cells. Therefore, we highlighted the importance of ANXA1/EVs-FPR axes in PC progression as a vehicle of intercommunication tumor cells-stroma, suggesting a specific potential prognostic/diagnostic role of ANXA1, whether in soluble form or even if EVs are captured in PC.
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Affiliation(s)
- Nunzia Novizio
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy; (N.N.); (R.B.); (E.P.); (A.T.); (A.P.); (P.C.)
| | - Raffaella Belvedere
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy; (N.N.); (R.B.); (E.P.); (A.T.); (A.P.); (P.C.)
| | - Emanuela Pessolano
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy; (N.N.); (R.B.); (E.P.); (A.T.); (A.P.); (P.C.)
- The William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK;
| | - Alessandra Tosco
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy; (N.N.); (R.B.); (E.P.); (A.T.); (A.P.); (P.C.)
| | - Amalia Porta
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy; (N.N.); (R.B.); (E.P.); (A.T.); (A.P.); (P.C.)
| | - Mauro Perretti
- The William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, UK;
| | - Pietro Campiglia
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy; (N.N.); (R.B.); (E.P.); (A.T.); (A.P.); (P.C.)
| | - Amelia Filippelli
- Department of Medicine, Surgery and Dentistry, University of Salerno, Via S. Allende 43, 84081 Baronissi, Italy;
| | - Antonello Petrella
- Department of Pharmacy, University of Salerno, Via Giovanni Paolo II 132, 84084 Fisciano, Italy; (N.N.); (R.B.); (E.P.); (A.T.); (A.P.); (P.C.)
- Correspondence: ; Tel.: +39-089-969-762; Fax: +39-089-969-602
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16
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Heparan sulfate binds the extracellular Annexin A1 and blocks its effects on pancreatic cancer cells. Biochem Pharmacol 2020; 182:114252. [DOI: 10.1016/j.bcp.2020.114252] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/24/2020] [Accepted: 09/25/2020] [Indexed: 12/12/2022]
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17
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Jeong YS, Bae YS. Formyl peptide receptors in the mucosal immune system. Exp Mol Med 2020; 52:1694-1704. [PMID: 33082511 PMCID: PMC7572937 DOI: 10.1038/s12276-020-00518-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/14/2020] [Accepted: 09/15/2020] [Indexed: 12/11/2022] Open
Abstract
Formyl peptide receptors (FPRs) belong to the G protein-coupled receptor (GPCR) family and are well known as chemotactic receptors and pattern recognition receptors (PRRs) that recognize bacterial and mitochondria-derived formylated peptides. FPRs are also known to detect a wide range of ligands, including host-derived peptides and lipids. FPRs are highly expressed not only in phagocytes such as neutrophils, monocytes, and macrophages but also in nonhematopoietic cells such as epithelial cells and endothelial cells. Mucosal surfaces, including the gastrointestinal tract, the respiratory tract, the oral cavity, the eye, and the reproductive tract, separate the external environment from the host system. In mucosal surfaces, the interaction between the microbiota and host cells needs to be strictly regulated to maintain homeostasis. By sharing the same FPRs, immune cells and epithelial cells may coordinate pathophysiological responses to various stimuli, including microbial molecules derived from the normal flora. Accumulating evidence shows that FPRs play important roles in maintaining mucosal homeostasis. In this review, we summarize the roles of FPRs at mucosal surfaces.
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Affiliation(s)
- Yu Sun Jeong
- Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea
| | - Yoe-Sik Bae
- Department of Biological Sciences, Sungkyunkwan University, Suwon, 16419, Republic of Korea.
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18
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Chen L, Shi L, Ma Y, Zheng C. Hub Genes Identification in a Murine Model of Allergic Rhinitis Based on Bioinformatics Analysis. Front Genet 2020; 11:970. [PMID: 33193578 PMCID: PMC7477359 DOI: 10.3389/fgene.2020.00970] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Accepted: 07/31/2020] [Indexed: 12/16/2022] Open
Abstract
This study aimed to identify allergic rhinitis (AR)-related hub genes and functionally enriched pathways in a murine model. Dataset GSE52804 (including three normal controls and three AR mice) was downloaded from Gene Expression Omnibus (GEO). Differentially expressed genes (DEGs) were identified. Gene ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways, and protein-protein interaction (PPI) analyses of DEGs were performed to identify the hub genes in AR. The DEGs were classified into different modules by using the weighted gene co-expression network analysis (WGCNA). Moreover, to verify the potential hub genes, nasal mucosa tissues were obtained from murine AR models (n = 5) and controls (n = 5), and qRT-PCR and Western blot were performed. In this study, a total of 634 DEGs were identified. They were significantly enriched in 14 GO terms, such as integral component of membrane, plasma membrane, and G-protein-coupled receptor signaling pathway. Meanwhile, there were eight terms of KEGG pathways significantly enriched, such as Olfactory transduction, Cytokine-cytokine receptor interaction, and TNF signaling pathway. The top 10 hub genes (Rtp1, Rps27a, Penk, Cxcl2, Gng8, Gng3, Cxcl1, Cxcr2, Ccl9, and Anxa1) were identified by the PPI network. DEGs were classified into seven modules by WGCNA. According to qRT-PCR validation of the five genes of interest (Rtp1, Rps27a, Penk, Cxcl2, and Anxa1), the expression level of Rtp1 mRNA was significantly decreased in the AR group compared with the control group, while there are enhanced Rps27a, Penk, Cxcl2, and Anxa1 mRNA expressions in the AR mice group compared with the control group. Western blot was also performed to further explore the expression of Anxa1 in the protein level, and the results showed a similar expression trend.
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Affiliation(s)
- Le Chen
- Department of Otolaryngology-Head and Neck Surgery, Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China.,Shanghai Key Clinical Disciplines of Otorhinolaryngology, Shanghai, China
| | - Le Shi
- Department of Otolaryngology-Head and Neck Surgery, Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China.,Shanghai Key Clinical Disciplines of Otorhinolaryngology, Shanghai, China
| | - Yue Ma
- Department of Otolaryngology-Head and Neck Surgery, Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China.,Shanghai Key Clinical Disciplines of Otorhinolaryngology, Shanghai, China
| | - Chunquan Zheng
- Department of Otolaryngology-Head and Neck Surgery, Eye, Ear, Nose, and Throat Hospital, Fudan University, Shanghai, China
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19
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Shao G, Zhou H, Zhang Q, Jin Y, Fu C. Advancements of Annexin A1 in inflammation and tumorigenesis. Onco Targets Ther 2019; 12:3245-3254. [PMID: 31118675 PMCID: PMC6500875 DOI: 10.2147/ott.s202271] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 04/01/2019] [Indexed: 12/28/2022] Open
Abstract
Annexin A1 is a Ca2+-dependent phospholipid binding protein involved in a variety of pathophysiological processes. Accumulated evidence has indicated that Annexin A1 has important functions in cell proliferation, apoptosis, differentiation, metastasis, and inflammatory response. Moreover, the abnormal expression of Annexin A1 is closely related to the occurrence and development of tumors. In this review article, we focus on the structure and function of Annexin A1 protein, especially the recent evidence of Annexin A1 in the pathophysiological role of inflammatory and cancer. This summary will be very important for further investigation of the pathophysiological role of Annexin A1 and for the development of novel therapeutics of inflammatory and cancer based on targeting Annexin A1 protein.
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Affiliation(s)
- Gang Shao
- College of Life Sciences, China Jiliang University, Hangzhou 310018, People's Republic of China
| | - Hanwei Zhou
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China.,Institute of Orthopedics, Xiaoshan Traditional Chinese Medical Hospital, Hangzhou 311201, People's Republic of China
| | - Qiyu Zhang
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
| | - Yuanting Jin
- College of Life Sciences, China Jiliang University, Hangzhou 310018, People's Republic of China
| | - Caiyun Fu
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou 310018, People's Republic of China
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20
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Parisi JDS, Corrêa MP, Gil CD. Lack of Endogenous Annexin A1 Increases Mast Cell Activation and Exacerbates Experimental Atopic Dermatitis. Cells 2019; 8:cells8010051. [PMID: 30650525 PMCID: PMC6356645 DOI: 10.3390/cells8010051] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 12/29/2018] [Accepted: 01/03/2019] [Indexed: 01/19/2023] Open
Abstract
Annexin A1 (AnxA1) is a protein with potent anti-inflammatory actions and an interesting target that has been poorly explored in skin inflammation. This work evaluated the lack of endogenous AnxA1 in the progression of ovalbumin (OVA)-induced atopic dermatitis (AD)-like skin lesions. OVA/Alum-immunized C57BL/6 male wild-type (WT) and AnxA1 null (AnxA1-/-) mice were challenged with drops containing OVA on days 11, 14–18 and 21–24. The AnxA1-/- AD group exhibited skin with intense erythema, erosion and dryness associated with increased skin thickness compared to the AD WT group. The lack of endogenous AnxA1 also increased IgE relative to WT animals, demonstrating exacerbation of the allergic response. Histological analysis revealed intense eosinophilia and mast-cell activation in AD animals, especially in AnxA1-/-. Both AD groups increased skin interleukin (IL)-13 levels, while IL-17A was upregulated in AnxA1-/- lymph nodes and mast cells. High levels of phosphorylated ERK were detected in keratinocytes from AD groups. However, phospho-ERK levels were higher in the AnxA1-/- when compared to the respective control groups. Our results suggest AnxA1 as an important therapeutic target for inflammatory skin diseases.
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Affiliation(s)
- Jéssica Dos Santos Parisi
- Department of Morphology and Genetics, Federal University of São Paulo (UNIFESP), São Paulo 04023-900, Brazil.
| | - Mab Pereira Corrêa
- Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University (UNESP), São José do Rio Preto 15054-000, Brazil.
| | - Cristiane Damas Gil
- Department of Morphology and Genetics, Federal University of São Paulo (UNIFESP), São Paulo 04023-900, Brazil.
- Institute of Biosciences, Humanities and Exact Sciences (Ibilce), São Paulo State University (UNESP), São José do Rio Preto 15054-000, Brazil.
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