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Ricciutelli M, Angeloni S, Conforti S, Corneli M, Caprioli G, Sagratini G, Alabed HBR, D'Amato Tóthová J, Pellegrino RM. An untargeted metabolomics approach to study changes of the medium during human cornea culture. Metabolomics 2024; 20:44. [PMID: 38581549 DOI: 10.1007/s11306-024-02102-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Accepted: 02/15/2024] [Indexed: 04/08/2024]
Abstract
INTRODUCTION Two main approaches (organ culture and hypothermia) for the preservation and storage of human donor corneas are globally adopted for corneal preservation before the transplant. Hypothermia is a hypothermic storage which slows down cellular metabolism while organ culture, a corneal culture performed at 28-37 °C, maintains an active corneal metabolism. Researchers, till now, have just studied the impact of organ culture on human cornea after manipulating and disrupting tissues. OBJECTIVES The aim of the current work was to optimize an analytical procedure which can be useful for discovering biomarkers capable of predicting tissue health status. For the first time, this research proposed a preliminary metabolomics study on medium for organ culture without manipulating and disrupting the valuable human tissues which could be still used for transplantation. METHODS In particular, the present research proposed a method for investigating changes in the medium, over a storage period of 20 days, in presence and absence of a human donor cornea. An untargeted metabolomics approach using UHPLC-QTOF was developed to deeply investigate the differences on metabolites and metabolic pathways and the influence of the presence of the cornea inside the medium. RESULTS Differences in the expression of some compounds emerged from this preliminary metabolomics approach, in particular in medium maintained for 10 and 20 days in presence but also in the absence of cornea. A total of 173 metabolites have been annotated and 36 pathways were enriched by pathway analysis. CONCLUSION The results revealed a valuable untargeted metabolomics approach which can be applied in organ culture metabolomics.
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Affiliation(s)
- Massimo Ricciutelli
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, I-62032, Camerino, Italy
| | - Simone Angeloni
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, I-62032, Camerino, Italy.
| | - Silvia Conforti
- The Marche Region Eye Bank, AST Ancona - E. Profili Hospital, 60044, Fabriano, Italy
| | - Massimiliano Corneli
- The Marche Region Eye Bank, AST Ancona - E. Profili Hospital, 60044, Fabriano, Italy
| | - Giovanni Caprioli
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, I-62032, Camerino, Italy
| | - Gianni Sagratini
- Chemistry Interdisciplinary Project (ChIP), School of Pharmacy, University of Camerino, I-62032, Camerino, Italy
| | - Husam B R Alabed
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06100, Perugia, Italy
| | | | - Roberto Maria Pellegrino
- Department of Chemistry, Biology and Biotechnology, University of Perugia, 06100, Perugia, Italy
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Akkurt Arslan M, Brignole-Baudouin F, Chardonnet S, Pionneau C, Blond F, Baudouin C, Kessal K. Profiling tear film enzymes reveals major metabolic pathways involved in the homeostasis of the ocular surface. Sci Rep 2023; 13:15231. [PMID: 37709789 PMCID: PMC10502076 DOI: 10.1038/s41598-023-42104-2] [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: 02/01/2023] [Accepted: 09/05/2023] [Indexed: 09/16/2023] Open
Abstract
The ocular surface (OS) enzymes are of great interest due to their potential for novel ocular drug development. We aimed first to profile and classify the enzymes of the OS to describe major biological processes and pathways that are involved in the maintenance of homeostasis. Second, we aimed to compare the enzymatic profiles between the two most common tear collection methods, capillary tubes (CT) and Schirmer strips (ScS). A comprehensive tear proteomic dataset was generated by pooling all enzymes identified from nine tear proteomic analyses of healthy subjects using mass spectrometry. In these studies, tear fluid was collected using CT (n = 4), ScS (n = 4) or both collection methods (n = 1). Classification and functional analysis of the enzymes was performed using a combination of bioinformatic tools. The dataset generated identified 1010 enzymes. The most representative classes were hydrolases (EC 3) and transferases (EC 2). Phosphotransferases, esterases and peptidases were the most represented subclasses. A large portion of the identified enzymes was common to both collection methods (n = 499). More enzymes were specifically detected in the ScS-extracted proteome. The major pathways in which the identified enzymes participate are related to the immune system and protein, carbohydrate and lipid metabolism. Metabolic processes for nucleosides, cellular amides, sugars and sulfur compounds constituted the most enriched biological processes. Knowledge of these molecules highly susceptible to pharmacological manipulation might help to predict the metabolism of ophthalmic medications and develop novel prodrug strategies as well as new drug delivery systems. Combining such extensive knowledge of the OS enzymes with new analytical approaches and techniques might create new prospects for understanding, predicting and manipulating the metabolism of ocular pharmaceuticals. Our study reports new, essential data on OS enzymes while also comparing the enzyme profiles obtained via the two most popular methods of tear collection, capillary tubes and Schirmer strips.
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Affiliation(s)
- Murat Akkurt Arslan
- Institut National de la Santé et de la Recherche Médicale INSERM UMRS 968, CNRS UMR 7210, Institut de la Vision, IHU ForeSight, Sorbonne Université UM80, 75012, Paris, France
| | - Françoise Brignole-Baudouin
- Institut National de la Santé et de la Recherche Médicale INSERM UMRS 968, CNRS UMR 7210, Institut de la Vision, IHU ForeSight, Sorbonne Université UM80, 75012, Paris, France
- Hôpital National de la Vision des 15-20, INSERM-DGOS CIC 1423, IHU ForeSight, 75012, Paris, France
- Hôpital National de la Vision des 15-20, Laboratoire d'Ophtalmobiologie, 75012, Paris, France
- Faculté de Pharmacie de Paris, Université de Paris Cité, 75006, Paris, France
| | - Solenne Chardonnet
- INSERM, UMS Production et Analyse des donnees en Sciences de la vie et en Santé, PASS, Plateforme Post-génomique de la Pitié-Salpêtrière, P3S, Sorbonne Université, 75013, Paris, France
| | - Cédric Pionneau
- INSERM, UMS Production et Analyse des donnees en Sciences de la vie et en Santé, PASS, Plateforme Post-génomique de la Pitié-Salpêtrière, P3S, Sorbonne Université, 75013, Paris, France
| | - Frédéric Blond
- Institut National de la Santé et de la Recherche Médicale INSERM UMRS 968, CNRS UMR 7210, Institut de la Vision, IHU ForeSight, Sorbonne Université UM80, 75012, Paris, France
| | - Christophe Baudouin
- Institut National de la Santé et de la Recherche Médicale INSERM UMRS 968, CNRS UMR 7210, Institut de la Vision, IHU ForeSight, Sorbonne Université UM80, 75012, Paris, France
- Hôpital National de la Vision des 15-20, INSERM-DGOS CIC 1423, IHU ForeSight, 75012, Paris, France
- Ambroise Paré, Assistance Publique-Hôpitaux de Paris APHP, Service d'Ophtalmologie, Université Versailles Saint-Quentin-en-Yvelines, 92100, Boulogne, France
| | - Karima Kessal
- Institut National de la Santé et de la Recherche Médicale INSERM UMRS 968, CNRS UMR 7210, Institut de la Vision, IHU ForeSight, Sorbonne Université UM80, 75012, Paris, France.
- Hôpital National de la Vision des 15-20, INSERM-DGOS CIC 1423, IHU ForeSight, 75012, Paris, France.
- Hôpital National de la Vision des 15-20, Laboratoire d'Ophtalmobiologie, 75012, Paris, France.
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Matsuzawa M, Ando T, Fukase S, Kimura M, Kume Y, Ide T, Izawa K, Kaitani A, Hara M, Nakamura E, Kamei A, Matsuda A, Nakano N, Maeda K, Tada N, Ogawa H, Okumura K, Murakami A, Ebihara N, Kitaura J. The protective role of conjunctival goblet cell mucin sialylation. Nat Commun 2023; 14:1417. [PMID: 36932081 PMCID: PMC10023771 DOI: 10.1038/s41467-023-37101-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Accepted: 02/27/2023] [Indexed: 03/19/2023] Open
Abstract
Gel-forming mucins secreted by conjunctival goblet cells have been implicated in the clearance of allergens, pathogens, and debris. However, their roles remain incompletely understood. Here we show that human and mouse conjunctival goblet cell mucins have Alcian blue-detectable sialic acids, but not sulfates in the steady state. Interestingly, Balb/c mouse strain lacks this sialylation due to a point mutation in a sialyltransferase gene, St6galnac1, which is responsible for sialyl-Tn synthesis. Introduction of intact St6galnac1 to Balb/c restores the sialylation of conjunctival goblet cell mucus. Sialylated mucus efficiently captures and encapsulates the allergen particles in an impenetrable layer, leading to the protection of mice from the development of allergic conjunctivitis. Expression of ST6GALNAC1 and sialyl-Tn is upregulated in humans under conditions with chronic stimuli. These results indicate that the sialylated glycans on the ocular mucins play an essential role in maintaining the conjunctival mucosa by protecting from the incoming foreign bodies such as allergen particles.
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Affiliation(s)
- Moe Matsuzawa
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Ophthalmology, Juntendo University Urayasu Hospital, Urayasu, Chiba, 279-0021, Japan
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Tomoaki Ando
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan.
| | - Saaya Fukase
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Ophthalmology, Juntendo University Urayasu Hospital, Urayasu, Chiba, 279-0021, Japan
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Meiko Kimura
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Ophthalmology, Juntendo University Urayasu Hospital, Urayasu, Chiba, 279-0021, Japan
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Yasuharu Kume
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Ophthalmology, Juntendo University Urayasu Hospital, Urayasu, Chiba, 279-0021, Japan
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Takuma Ide
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Otorhinolaryngology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Kumi Izawa
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Ayako Kaitani
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Mutsuko Hara
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Laboratory of Molecular and Biochemical Research, Biomedical Research Core Facilities, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Eri Nakamura
- Research Institute for Diseases of Old Age, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Anna Kamei
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Science of Allergy and Inflammation, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Akira Matsuda
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Nobuhiro Nakano
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Keiko Maeda
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
- Department of Immunological Diagnosis, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Norihiro Tada
- Center for Biomedical Research Resources, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Hideoki Ogawa
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Ko Okumura
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Akira Murakami
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Nobuyuki Ebihara
- Department of Ophthalmology, Juntendo University Urayasu Hospital, Urayasu, Chiba, 279-0021, Japan
- Department of Ophthalmology, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan
| | - Jiro Kitaura
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan.
- Department of Science of Allergy and Inflammation, Juntendo University Graduate School of Medicine, Tokyo, 113-8421, Japan.
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Chen Z, Yu H, Chen X, Chen W, Song W, Li Z. Mutual regulation between glycosylation and transforming growth factor-β isoforms signaling pathway. Int J Biol Macromol 2023; 236:123818. [PMID: 36858092 DOI: 10.1016/j.ijbiomac.2023.123818] [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: 11/08/2022] [Revised: 01/18/2023] [Accepted: 02/19/2023] [Indexed: 03/02/2023]
Abstract
Transforming growth factor-beta (TGF-β) superfamily members orchestrate a wide breadth of biological processes. Through Sma and Mad (Smad)-related dependent or noncanonical pathways, TGF-β members involve in the occurrence and development of many diseases such as cancers, fibrosis, autoimmune diseases, cardiovascular diseases and brain diseases. Glycosylation is one kind of the most common posttranslational modifications on proteins or lipids. Abnormal protein glycosylation can lead to protein malfunction and biological process disorder, thereby causing serious diseases. Previously, researchers commonly make comprehensive systematic overviews on the roles of TGF-β signaling in a specific disease or biological process. In recent years, more and more evidences associate glycosylation modification with TGF-β signaling pathway, and we can no longer disengage and ignore the roles of glycosylation from TGF-β signaling to make investigation. In this review, we provide an overview of current findings involved in glycosylation within TGF-βs and theirs receptors, and the interaction effects between glycosylation and TGF-β subfamily signaling, concluding that there is an intricate mutual regulation between glycosylation and TGF-β signaling, hoping to present the glycosylation regulatory patterns that concealed in TGF-βs signaling pathways.
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Affiliation(s)
- Zhuo Chen
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, PR China
| | - Hanjie Yu
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, PR China
| | - Xiangqin Chen
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, PR China
| | - Wentian Chen
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, PR China
| | - Wanghua Song
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, PR China
| | - Zheng Li
- Laboratory for Functional Glycomics, College of Life Sciences, Northwest University, Xi'an 710069, PR China.
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Lectin-Based Affinity Enrichment and Characterization of N-Glycoproteins from Human Tear Film by Mass Spectrometry. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020648. [PMID: 36677706 PMCID: PMC9864693 DOI: 10.3390/molecules28020648] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/03/2023] [Accepted: 01/06/2023] [Indexed: 01/11/2023]
Abstract
The glycosylation of proteins is one of the most common post-translational modifications (PTMs) and plays important regulatory functions in diverse biological processes such as protein stability or cell signaling. Accordingly, glycoproteins are also a consistent part of the human tear film proteome, maintaining the proper function of the ocular surface and forming the first defense barrier of the ocular immune system. Irregularities in the glycoproteomic composition of tear film might promote the development of chronic eye diseases, indicating glycoproteins as a valuable source for biomarker discovery or drug target identification. Therefore, the present study aimed to develop a lectin-based affinity method for the enrichment and concentration of tear glycoproteins/glycopeptides and to characterize their specific N-glycosylation sites by high-resolution mass spectrometry (MS). For method development and evaluation, we first accumulated native glycoproteins from human tear sample pools and assessed the enrichment efficiency of different lectin column systems by 1D gel electrophoresis and specific protein stainings (Coomassie and glycoproteins). The best-performing multi-lectin column system (comprising the four lectins ConA, JAC, WGA, and UEA I, termed 4L) was applied to glycopeptide enrichment from human tear sample digests, followed by MS-based detection and localization of their specific N-glycosylation sites. As the main result, our study identified a total of 26 N glycosylation sites of 11 N-glycoproteins in the tear sample pools of healthy individuals (n = 3 biological sample pools). Amongst others, we identified tear film proteins lactotransferrin (N497 and N642, LTF), Ig heavy chain constant α-1 (N144 and 340, IGHA1), prolactin-inducible protein (N105, PIP), and extracellular lacritin (N105, LACRT) as highly reliable and significant N glycoproteins, already associated with the pathogenesis of various chronic eye diseases such as dry eye syndrome (DES). In conclusion, the results of the present study will serve as an important tear film N-glycoprotein catalog for future studies focusing on human tear film and ocular surface-related inflammatory diseases.
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Qin G, Chao C, Lattery LJ, Lin H, Fu W, Richdale K, Cai C. Tear proteomic analysis of young glasses, orthokeratology, and soft contact lens wearers. J Proteomics 2023; 270:104738. [PMID: 36191803 DOI: 10.1016/j.jprot.2022.104738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 09/01/2022] [Accepted: 09/06/2022] [Indexed: 02/01/2023]
Abstract
Contact lens-related ocular surface complications occur more often in teenagers and young adults. The purpose of this study was to determine changes in tear proteome of young patients wearing glasses (GL), orthokeratology lenses (OK), and soft contact lenses (SCL). Twenty-two young subjects (10-26 years of age) who were established GL, OK, and SCL wearers were recruited. Proteomic data were collected using a data-independent acquisition-parallel accumulation serial fragmentation workflow. In total, 3406 protein groups were identified, the highest number of proteins identified in Schirmer strip tears to date. Eight protein groups showed higher abundance, and 11 protein groups showed lower abundance in the SCL group compared to the OK group. In addition, the abundance of 82 proteins significantly differed in children compared to young adult GL wearers, among which 67 proteins were higher, and 15 proteins were lower in children. These 82 proteins were involved in inflammation, immune, and glycoprotein metabolic biological processes. In summary, this work identified over 3000 proteins in Schirmer Strip tears. The results indicated that tear proteomes were altered by orthokeratology and soft contact wear and age, which warrants further larger-scale study on the ocular surface responses of teenagers and young adults separately to contact lens wear. SIGNIFICANCE: In this work, we examined the tear proteomes of young patients wearing glasses, orthokeratology lenses, and soft contact lenses using a data-independent acquisition-parallel accumulation serial fragmentation (diaPASEF) workflow and identified 3406 protein groups in Schirmer strip tears. Nineteen protein groups showed significant abundance changes between orthokeratology and soft contact lens wearers. Moreover, eighty-two protein groups significantly differed in abundance in children and young adult glasses wearers. As a pilot study, this work provides a deep coverage of tear proteome and suggests the need to investigate ocular responses to contact lens wear separately for children and young adults.
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Affiliation(s)
- Guoting Qin
- College of Optometry, University of Houston, Houston, TX 77204, United States of America; Mass Spectrometry Laboratory, Department of Chemistry, University of Houston, Houston, TX 77204, United States of America.
| | - Cecilia Chao
- College of Optometry, University of Houston, Houston, TX 77204, United States of America; School of Optometry and Vision Science, University of New South Wales, Sydney, NSW 2023, Australia
| | - Lauren J Lattery
- College of Optometry, University of Houston, Houston, TX 77204, United States of America
| | - Hong Lin
- Department of Computer Science & Engineering Technology, University of Houston - Downtown, Houston, TX 77002, United States of America
| | - Wenjiang Fu
- Department of Mathematics, University of Houston, Houston, TX 77204, United States of America
| | - Kathryn Richdale
- College of Optometry, University of Houston, Houston, TX 77204, United States of America
| | - Chengzhi Cai
- Mass Spectrometry Laboratory, Department of Chemistry, University of Houston, Houston, TX 77204, United States of America.
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Yoon CH, Ryu JS, Ko JH, Kim YK, Oh JH, Chung JH, Oh JY. The Eyelid Meibomian Gland Deficiency in Fucosyltransferase 1 Knockout Mice. Int J Mol Sci 2022; 23:ijms23169464. [PMID: 36012728 PMCID: PMC9409428 DOI: 10.3390/ijms23169464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/12/2022] [Accepted: 08/18/2022] [Indexed: 11/16/2022] Open
Abstract
To investigate the effect of fucosyltransferase (FUT) 1-mediated fucosylation on meibomian glands (MG), we first confirmed that FUT1 and its fucosylated products were expressed in the eyelid, conjunctiva and skin in wild-type (WT) mice, whereas their mRNA and protein levels were downregulated in Fut1 knock-out (KO) mice. We then evaluated age-dependent changes in the total and acinar areas of MG, meibocyte differentiation, lipid synthesis, and eyelid inflammation and oxidative stress in Fut1 KO and WT mice. Results show that both the total and acinar areas of MG were smaller in Fut1 KO mice than in WT mice in all evaluated age groups. Meibocyte differentiation, lipid-producing capacities and the enzyme levels responsible for lipid synthesis were reduced in Fut1 KO mice, compared to WT controls. The levels of pro-inflammatory cytokines and oxidative-stress-related markers were elevated in the eyelids and MG of FUT1 KO mice. These findings demonstrate the physiologic function of FUT1-mediated fucosylation in MG development and function, and indicate its potential role in ocular surface homeostasis.
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Affiliation(s)
- Chang Ho Yoon
- Department of Ophthalmology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, Korea
- Laboratory of Ocular Regenerative Medicine and Immunology, Biomedical Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Jin Suk Ryu
- Laboratory of Ocular Regenerative Medicine and Immunology, Biomedical Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Jung Hwa Ko
- Laboratory of Ocular Regenerative Medicine and Immunology, Biomedical Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Yeon Kyung Kim
- Department of Dermatology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Jang-Hee Oh
- Department of Dermatology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Jin Ho Chung
- Department of Dermatology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, Korea
| | - Joo Youn Oh
- Department of Ophthalmology, Seoul National University College of Medicine, 103 Daehak-ro, Jongno-gu, Seoul 03080, Korea
- Laboratory of Ocular Regenerative Medicine and Immunology, Biomedical Research Institute, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, Korea
- Correspondence: or ; Tel.: +82-2-2072-0027
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Guindolet D, Woodward AM, Gabison EE, Argüeso P. Glycogene Expression Profile of Human Limbal Epithelial Cells with Distinct Clonogenic Potential. Cells 2022; 11:cells11091575. [PMID: 35563881 PMCID: PMC9102009 DOI: 10.3390/cells11091575] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/05/2022] [Accepted: 05/06/2022] [Indexed: 12/13/2022] Open
Abstract
Glycans function as valuable markers of stem cells but also regulate the ability of these cells to self-renew and differentiate. Approximately 2% of the human genome encodes for proteins that are involved in the biosynthesis and recognition of glycans. In the present study, we evaluated the expression of a small subset of glycogenes in human limbal epithelial cells with distinct clonogenic potential. Individual clones were classified as abortive or clonogenic, based on the fraction of the terminal colonies produced; clones leading exclusively to terminal colonies were referred to as abortive while those with half or fewer terminal colonies were referred to as clonogenic. An analysis of glycogene expression in clonogenic cultures revealed a high content of transcripts regulating the galactose and mannose metabolic pathways. Abortive clones were characterized by increased levels of GCNT4 and FUCA2, genes that are responsible for the branching of mucin-type O-glycans and the hydrolysis of fucose residues on N-glycans, respectively. The expansion of primary cultures of human limbal epithelial cells for 10 days resulted in stratification and a concomitant increase in MUC16, GCNT4 and FUCA2 expression. These data indicate that the clonogenic potential of human limbal epithelial cells is associated with specific glycosylation pathways. Mucin-type O-glycan branching and increased fucose metabolism are linked to limbal epithelial cell differentiation.
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Affiliation(s)
- Damien Guindolet
- Schepens Eye Research Institute of Mass. Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford Street, Boston, MA 02114, USA; (D.G.); (A.M.W.)
- Hôpital Fondation A. de Rothschild, Department of Ophthalmology, 25 rue Manin, 75019 Paris, France
| | - Ashley M. Woodward
- Schepens Eye Research Institute of Mass. Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford Street, Boston, MA 02114, USA; (D.G.); (A.M.W.)
| | - Eric E. Gabison
- Hôpital Fondation A. de Rothschild, Department of Ophthalmology, 25 rue Manin, 75019 Paris, France
- Correspondence: (E.E.G.); (P.A.)
| | - Pablo Argüeso
- Schepens Eye Research Institute of Mass. Eye and Ear, Department of Ophthalmology, Harvard Medical School, 20 Staniford Street, Boston, MA 02114, USA; (D.G.); (A.M.W.)
- Correspondence: (E.E.G.); (P.A.)
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Zhen Z, Shen Z, Sun P. Downregulation of Low-density lipoprotein receptor-related protein 1B (LRP1B) inhibits the progression of hepatocellular carcinoma cells by activating the endoplasmic reticulum stress signaling pathway. Bioengineered 2022; 13:9467-9481. [PMID: 35389768 PMCID: PMC9161869 DOI: 10.1080/21655979.2022.2060778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Hepatocellular carcinoma (HCC) has a high recurrence rate and mortality rate even after surgery. Low-density lipoprotein receptor-related protein 1B (LRP1B) has proven to be involved in tumor development and progression of multiple malignancies. However, the function of LRP1B in HCC progression has not been fully elucidated. Thus, we conducted this study to explore the relationship between LRP1B and HCC. Bioinformatic analyses implied that LRP1B was highly expressed in HCC tissues. High LRP1B expression was shown to be related to poor outcomes and the determination of HCC patients’ tumor stage. LRP1B deletion impeded the proliferation, migration, and invasion of HCC cells. Further investigation demonstrated that silencing LRP1B expression enhanced the sensitivity of HCC cells to doxorubicin. LRP1B deletion inhibited HCC progression by regulating the PERK-ATF4-CHOP signaling pathway. Additionally, we probed the genomic alterations of LRP1B in HCC and the impact on the prognosis of patients. Collectively, our results suggest that LRP1B plays an essential role in the promotion of HCC progression by regulating the PERK-ATF4-CHOP signaling pathway, which is a potential prognostic biomarker and a promising therapeutic target of HCC.
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Affiliation(s)
- Zili Zhen
- Department of General Surgery, Jinshan Hospital, Fudan University, Shanghai, P. R. China.,Department of Surgery, Shanghai Medical College, Fudan University, Shanghai, P. R. China.,Center for Tumor Diagnosis and Therapy, Jinshan Hospital, Fudan University, Shanghai, P. R. China
| | - Zhemin Shen
- Department of General Surgery, Jinshan Hospital, Fudan University, Shanghai, P. R. China
| | - Peilong Sun
- Department of General Surgery, Jinshan Hospital, Fudan University, Shanghai, P. R. China.,Center for Tumor Diagnosis and Therapy, Jinshan Hospital, Fudan University, Shanghai, P. R. China
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10
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Jones G, Lee TJ, Glass J, Rountree G, Ulrich L, Estes A, Sezer M, Zhi W, Sharma S, Sharma A. Comparison of Different Mass Spectrometry Workflows for the Proteomic Analysis of Tear Fluid. Int J Mol Sci 2022; 23:2307. [PMID: 35216421 PMCID: PMC8875482 DOI: 10.3390/ijms23042307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 02/01/2022] [Accepted: 02/15/2022] [Indexed: 12/17/2022] Open
Abstract
The tear film is a multi-layer fluid that covers the corneal and conjunctival epithelia of the eye and provides lubrication, nutrients, and protection from the outside environment. Tear fluid contains a high concentration of proteins and has thus been recognized as a potential source of biomarkers for ocular disorders due to its proximity to disease sites on the ocular surface and the non-invasive nature of its collection. This is particularly true in the case of dry eye disease, which directly impacts the tear film and its components. Proteomic analysis of tear fluid is challenging mainly due to the wide dynamic range of proteins and the small sample volumes. However, recent advancements in mass spectrometry have revolutionized the field of proteomics enabling unprecedented depth, speed, and accuracy, even with small sample volumes. In this study using the Orbitrap Fusion Tribrid mass spectrometer, we compared four different mass spectrometry workflows for the proteomic analysis of tear fluid collected via Schirmer strips. We were able to establish a method of in-strip protein digestion that identified >3000 proteins in human tear samples from 11 healthy subjects. Our method offers a significant improvement in the number of proteins identified compared to previously reported methods without pooling samples.
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Affiliation(s)
- Garrett Jones
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Tae Jin Lee
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Joshua Glass
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Grace Rountree
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Lane Ulrich
- Department of Ophthalmology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Amy Estes
- Department of Ophthalmology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Mary Sezer
- Department of Ophthalmology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Wenbo Zhi
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Shruti Sharma
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Department of Ophthalmology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
| | - Ashok Sharma
- Center for Biotechnology and Genomic Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Department of Ophthalmology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
- Department of Population Health Sciences, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
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11
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Ami D, Duse A, Mereghetti P, Cozza F, Ambrosio F, Ponzini E, Grandori R, Lunetta C, Tavazzi S, Pezzoli F, Natalello A. Tear-Based Vibrational Spectroscopy Applied to Amyotrophic Lateral Sclerosis. Anal Chem 2021; 93:16995-17002. [PMID: 34905686 PMCID: PMC8717331 DOI: 10.1021/acs.analchem.1c02546] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
![]()
Biofluid analysis
by optical spectroscopy techniques is attracting
considerable interest due to its potential to revolutionize diagnostics
and precision medicine, particularly for neurodegenerative diseases.
However, the lack of effective biomarkers combined with the unaccomplished
identification of convenient biofluids has drastically hampered optical
advancements in clinical diagnosis and monitoring of neurodegenerative
disorders. Here, we show that vibrational spectroscopy applied to
human tears opens a new route, offering a non-invasive, label-free
identification of a devastating disease such as amyotrophic lateral
sclerosis (ALS). Our proposed approach has been validated using two
widespread techniques, namely, Fourier transform infrared (FTIR) and
Raman microspectroscopies. In conjunction with multivariate analysis,
this vibrational approach made it possible to discriminate between
tears from ALS patients and healthy controls (HCs) with high specificity
(∼97% and ∼100% for FTIR and Raman spectroscopy, respectively)
and sensitivity (∼88% and ∼100% for FTIR and Raman spectroscopy,
respectively). Additionally, the investigation of tears allowed us
to disclose ALS spectroscopic markers related to protein and lipid
alterations, as well as to a reduction of the phenylalanine level,
in comparison with HCs. Our findings show that vibrational spectroscopy
is a new potential ALS diagnostic approach and indicate that tears
are a reliable and non-invasive source of ALS biomarkers.
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Affiliation(s)
- Diletta Ami
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy
| | - Alessandro Duse
- Department of Materials Science, University of Milano-Bicocca, Via R. Cozzi 55, 20125 Milano, Italy.,COMiB Research Centre in Optics and Optometry, Via R. Cozzi 55, 20125 Milano, Italy
| | | | - Federica Cozza
- COMiB Research Centre in Optics and Optometry, Via R. Cozzi 55, 20125 Milano, Italy.,NEuroMuscular Omnicentre (NEMO), Serena Onlus Foundation, Piazza Ospedale Maggiore 3, 20162 Milano, Italy
| | - Francesca Ambrosio
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy
| | - Erika Ponzini
- Department of Materials Science, University of Milano-Bicocca, Via R. Cozzi 55, 20125 Milano, Italy.,COMiB Research Centre in Optics and Optometry, Via R. Cozzi 55, 20125 Milano, Italy
| | - Rita Grandori
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy
| | - Christian Lunetta
- NEuroMuscular Omnicentre (NEMO), Serena Onlus Foundation, Piazza Ospedale Maggiore 3, 20162 Milano, Italy.,NEMO Lab, Piazza Ospedale Maggiore 3, 20162 Milano, Italy
| | - Silvia Tavazzi
- Department of Materials Science, University of Milano-Bicocca, Via R. Cozzi 55, 20125 Milano, Italy.,COMiB Research Centre in Optics and Optometry, Via R. Cozzi 55, 20125 Milano, Italy
| | - Fabio Pezzoli
- Department of Materials Science, University of Milano-Bicocca, Via R. Cozzi 55, 20125 Milano, Italy
| | - Antonino Natalello
- Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milano, Italy
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12
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Raposo AC, Lebrilla C, Portela RW, Xu G, Oriá AP. The glycoproteomics of hawk and caiman tears. BMC Vet Res 2021; 17:381. [PMID: 34886864 PMCID: PMC8656020 DOI: 10.1186/s12917-021-03088-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 11/22/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Glycoproteins are important tear components that participate in the stability of the ocular surface. However, the glycopeptides that are present in the tears of wild animals have not yet been described. This work aimed to describe the glycoproteomic profile of roadside hawk (Rupornis magnirostris) and caiman (Caiman latirostris) tears. METHODS Tears collected from 10 hawks and 70 caimans using Schirmer tear test strips were used in this study. The samples were submitted to trypsin digestion and separated using a reverse-phase column coupled to a mass spectrometer associated to a nanospray ionization source. The glycoproteins were categorized as: cellular components, biological processes and molecular function, according to the UniProt Knowledgebase. RESULTS As shown by the liquid chromatography-mass spectrometry, all glycopeptides found were classified as N-type. Of the 51 glycoproteins that were identified in the hawk tear film, the most abundant were ovotransferrin, globulins and complement system proteins. In the caiman tear film, 29 glycoproteins were identified. The most abundant caiman glycoproteins were uncharacterized proteins, ATPases, globulins and proteasome components. Ontological characterization revealed that the glycoproteins were extracellular, and the most identified molecular function was endopeptidase activity for both species. CONCLUSION Glycoproteins are abundant in the tear film of the bird and reptile species studied herein, and all these molecules were shown to have N-type modifications. Location at the extracellular space and an endopeptidase inhibitor activity were the main cell component and molecular function for both species, respectively. These profiles showed differences when compared to human tears, are possibly linked to adaptive processes and can be the basis for further studies on the search of disease biomarkers.
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Affiliation(s)
- Ana Cláudia Raposo
- School of Veterinary Medicine, Federal University of Bahia, Brazil, Salvador, 40.110-060, Brazil
| | - Carlito Lebrilla
- Chemistry Department, Mass Spectrometry Facilities Campus, University of California, Davis, CA, 95616-8585, USA
| | - Ricardo Wagner Portela
- Institute of Health Sciences, Federal University of Bahia, Brazil, Salvador, 40.110-100, Brazil
| | - Gege Xu
- Chemistry Department, Mass Spectrometry Facilities Campus, University of California, Davis, CA, 95616-8585, USA
| | - Arianne Pontes Oriá
- School of Veterinary Medicine, Federal University of Bahia, Brazil, Salvador, 40.110-060, Brazil.
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13
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Argüeso P, Woodward AM, AbuSamra DB. The Epithelial Cell Glycocalyx in Ocular Surface Infection. Front Immunol 2021; 12:729260. [PMID: 34497615 PMCID: PMC8419333 DOI: 10.3389/fimmu.2021.729260] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Accepted: 08/09/2021] [Indexed: 12/30/2022] Open
Abstract
The glycocalyx is the main component of the transcellular barrier located at the interface between the ocular surface epithelia and the external environment. This barrier extends up to 500 nm from the plasma membrane and projects into the tear fluid bathing the surface of the eye. Under homeostatic conditions, defense molecules in the glycocalyx, such as transmembrane mucins, resist infection. However, many pathogenic microorganisms have evolved to exploit components of the glycocalyx in order to gain access to epithelial cells and consequently exert deleterious effects. This manuscript reviews the implications of the ocular surface epithelial glycocalyx to bacterial, viral, fungal and parasitic infection. Moreover, it presents some ongoing controversies surrounding the functional relevance of the epithelial glycocalyx to ocular infectious disease.
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Affiliation(s)
- Pablo Argüeso
- Department of Ophthalmology, Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, United States
| | - Ashley M Woodward
- Department of Ophthalmology, Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, United States
| | - Dina B AbuSamra
- Department of Ophthalmology, Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, United States
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14
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Song D, Guo M, Wu K, Hao J, Nie Y, Fan D. Silencing of ER-resident oxidoreductase PDIA3 inhibits malignant biological behaviors of multidrug-resistant gastric cancer. Acta Biochim Biophys Sin (Shanghai) 2021; 53:1216-1226. [PMID: 34363072 DOI: 10.1093/abbs/gmab101] [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: 03/22/2021] [Indexed: 11/13/2022] Open
Abstract
Glycosylation is a common posttranslational modification of proteins, which plays a role in the malignant transformation, growth, progression, chemoresistance, and immune response of tumors. Disulfide isomerase family A3 (PDIA3) specifically acts on newly synthesized glycoproteins to promote the correct folding of sugar chains. Studies have shown that PDIA3 participates in multidrug-resistant gastric cancer (MDR-GC). In this study, we performed western blot analysis and immunohistochemistry to identify PDIA3 expression. Cell proliferation was assessed by CCK-8 assay. Transwell assays were used to detect the migration and invasion abilities of cells. Immunoprecipitation coupled to mass spectrometry (IP-MS) analysis was employed to identify PDIA3-interacting proteins and the associated pathways in MDR-GC cells. Glycoprotein interactions and translocation were detected by immunofluorescence assay. The results showed that PDIA3 knockdown significantly inhibited the proliferation, invasion, and migration abilities of MDR-GC cells. Kyoto Encyclopedia of Genes and Genomes analysis of the IP-MS results showed that PDIA3 was closely associated with focal adhesion pathways in MDR-GC cells. Additionally, important components of focal adhesion pathways, including fibronectin-1 (FN1) and integrin α5 (ITGA5), were identified as pivotal PDIA3-binding glycoproteins. Knockdown of PDIA3 altered the cellular locations of FN1 and ITGA5, leading to abnormal accumulation. In conclusion, our results suggest that knockdown of PDIA3 inhibited the malignant behaviors of MDR-GC cells and influenced the translocation of FN1 and ITGA5.
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Affiliation(s)
- Danyang Song
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Meng Guo
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi’an 710032, China
| | - Kaichu Wu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi’an 710032, China
| | - Jianyu Hao
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
| | - Yongzhan Nie
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi’an 710032, China
| | - Daiming Fan
- Department of Gastroenterology, Beijing Chaoyang Hospital, Capital Medical University, Beijing 100020, China
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Air Force Military Medical University, Xi’an 710032, China
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15
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Messina A, Palmigiano A, Tosto C, Romeo DA, Sturiale L, Garozzo D, Leonardi A. Tear N-glycomics in vernal and atopic keratoconjunctivitis. Allergy 2021; 76:2500-2509. [PMID: 33583051 DOI: 10.1111/all.14775] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 12/08/2020] [Accepted: 12/23/2020] [Indexed: 12/12/2022]
Abstract
PURPOSE Tear fluid N-Glycome from patients affected with vernal (VKC) and atopic keratoconjunctivitis (AKC) was investigated to identify specific changes in tears and to recognize possible glyco-biomarkers. METHODS The analysis of the N-glycans was performed using matrix-assisted laser desorption ionization mass spectrometry on single tear samples. Tears from control normal subjects (CTRL), VKC and AKC patients were processed and treated with peptide N-glycosidase F (PNGase F) to deglycosylate N-glycoproteins. Released N-glycans were purified, permethylated, and analyzed by matrix-assisted laser desorption/ionization-time of flight mass spectrometry and tandem mass spectrometry (MALDI-TOF MS and MALDI-TOF MS/MS). RESULTS More than 150 complex N-glycans, including highly fucosylated biantennary, triantennary, tetra-antennary, and bisecting species, were observed in our spectra. Three distinct patterns for CTRL, VKC, and AKC patients were identified in terms of relative intensities for some N-glycans structures. Major variations involved bisecting and hyperfucosylated glycoforms. The most intense ions were associated with species at m/z 1907.0 (asialo, agalacto, bisected, biantennary structure-NGA2B) in CTRL MS profiles, at m/z 2605.3 and 2966.5 in VKC, and at m/z 2792.4 in AKC corresponding to a well-known biantennary, disialylated N-glycan. Several peaks were associated with structures bearing one or two Lewis X epitopes. Structures were confirmed by MS/MS analysis. Quantitative differences among the three groups were statistically significant. CONCLUSIONS Tear MS profiles are rich in specific glycoforms, particularly those with a high fucosylation degree, indicating both core and peripheral decoration. Tear N-glycome analysis provided important information for a better comprehension of VKC and AKC alterations at the molecular level.
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Affiliation(s)
- Angela Messina
- Consiglio Nazionale delle Ricerche (CNR) Istituto per i Polimeri Compositi e Biomateriali (IPCB) Catania Catania Italy
| | - Angelo Palmigiano
- Consiglio Nazionale delle Ricerche (CNR) Istituto per i Polimeri Compositi e Biomateriali (IPCB) Catania Catania Italy
| | - Claudia Tosto
- Consiglio Nazionale delle Ricerche (CNR) Istituto per i Polimeri Compositi e Biomateriali (IPCB) Catania Catania Italy
| | - Donata Agata Romeo
- Consiglio Nazionale delle Ricerche (CNR) Istituto per i Polimeri Compositi e Biomateriali (IPCB) Catania Catania Italy
| | - Luisa Sturiale
- Consiglio Nazionale delle Ricerche (CNR) Istituto per i Polimeri Compositi e Biomateriali (IPCB) Catania Catania Italy
| | - Domenico Garozzo
- Consiglio Nazionale delle Ricerche (CNR) Istituto per i Polimeri Compositi e Biomateriali (IPCB) Catania Catania Italy
| | - Andrea Leonardi
- Department of Neuroscience, Ophthalmology Unit University of Padua Padua Italy
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16
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Inhibition of Aberrant α(1,2)-Fucosylation at Ocular Surface Ameliorates Dry Eye Disease. Int J Mol Sci 2021; 22:ijms22157863. [PMID: 34360627 PMCID: PMC8346094 DOI: 10.3390/ijms22157863] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2021] [Revised: 07/17/2021] [Accepted: 07/21/2021] [Indexed: 12/12/2022] Open
Abstract
Fucosylation is involved in a wide range of biological processes from cellular adhesion to immune regulation. Although the upregulation of fucosylated glycans was reported in diseased corneas, its implication in ocular surface disorders remains largely unknown. In this study, we analyzed the expression of a fucosylated glycan on the ocular surface in two mouse models of dry eye disease (DED), the NOD.B10.H2b mouse model and the environmental desiccating stress model. We furthermore investigated the effects of aberrant fucosylation inhibition on the ocular surface and DED. Results demonstrated that the level of type 2 H antigen, an α(1,2)-fucosylated glycan, was highly increased in the cornea and conjunctiva both in NOD.B10.H2b mice and in BALB/c mice subjected to desiccating stress. Inhibition of α(1,2)-fucosylation by 2-deoxy-D-galactose (2-D-gal) reduced corneal epithelial defects and increased tear production in both DED models. Moreover, 2-D-gal treatment suppressed the levels of inflammatory cytokines in the ocular surface and the percentages of IFN-γ+CD4+ cells in draining lymph nodes, whereas it did not affect the number of conjunctival goblet cells, the MUC5AC level or the meibomian gland area. Together, the findings indicate that aberrant fucosylation underlies the pathogenesis of DED and may be a novel target for DED therapy.
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17
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Joseph LB, Gordon MK, Kang J, Croutch CR, Zhou P, Heck DE, Laskin DL, Laskin JD. Characterization of the rabbit conjunctiva: Effects of sulfur mustard. Exp Mol Pathol 2021; 121:104656. [PMID: 34081961 DOI: 10.1016/j.yexmp.2021.104656] [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: 01/12/2021] [Revised: 04/16/2021] [Accepted: 05/29/2021] [Indexed: 11/16/2022]
Abstract
Sulfur mustard (SM; bis (2-chloroethyl) sulfide) is a potent vesicant which causes irritation of the conjunctiva and damage to the cornea. In the present studies, we characterized the ocular effects of SM in New Zealand white rabbits. Within one day of exposure to SM, edema and hazing of the cornea were observed, followed by neovascularization which persisted for at least 28 days. This was associated with upper and lower eyelid edema and conjunctival inflammation. The conjunctiva is composed of a proliferating epithelium largely consisting of stratified columnar epithelial cells overlying a well-defined dermis. Superficial layers of the conjunctival epithelium were found to express keratin 1, a marker of differentiating squamous epithelium, while in cells overlying the basement membrane expressed keratin 17, a marker of stratified squamous epithelium. SM exposure upregulated keratin 17 expression. Mucin 5 ac producing goblet cells were interspersed within the conjunctiva. These cells generated both acidic and neutral mucins. Increased numbers of goblet cells producing neutral mucins were evident after SM exposure; upregulation of expression of membrane-associated mucin 1 and mucin 4 in the superficial layers of the conjunctival epithelium were also noted. These data demonstrate that ocular exposure of rabbits to SM causes significant damage not only to the cornea, but to the eyelid and conjunctiva, suggesting multiple targets within the eye that should be assessed when evaluating the efficacy of potential countermeasures.
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Affiliation(s)
- Laurie B Joseph
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States.
| | - Marion K Gordon
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States
| | - Jieun Kang
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States
| | | | - Peihong Zhou
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States
| | - Diane E Heck
- Department of Public Health, New York Medical College, Valhalla, NY 10595, United States
| | - Debra L Laskin
- Department of Pharmacology and Toxicology, Ernest Mario School of Pharmacy, Rutgers University, Piscataway, NJ 08854, United States
| | - Jeffrey D Laskin
- Department of Environmental and Occupational Health and Justice, Rutgers University School of Public Health, Piscataway, NJ 08854, United States
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18
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Abstract
The glycocalyx is a dense and diverse coat of glycans and glycoconjugates responsible for maintaining cell surface integrity and regulating the interaction of cells with the external environment. Transmembrane mucins such as MUC1 and MUC16 comprise a major component of the epithelial glycocalyx and are currently used to monitor disease progression in cancer. At the ocular surface, multiple lines of evidence indicate that abnormal expression of the enzymes responsible for glycan biosynthesis during pathological conditions impairs the glycosylation of transmembrane mucins. It is now becoming clear that these changes contribute to modify the interaction of mucins with galectin-3, a multimeric lectin crucial for preserving the ocular surface epithelial barrier. This review highlights the potential of using the epithelial glycocalyx as a reliable source for the generation of biomarkers to diagnose and monitor ocular surface disease.
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19
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Chauhan BK, Medsinge A, Scanga HL, Chu CT, Nischal KK. Transcriptome from opaque cornea of Fanconi anemia patient uncovers fibrosis and two connected players. Mol Genet Metab Rep 2021; 26:100712. [PMID: 33552906 PMCID: PMC7846932 DOI: 10.1016/j.ymgmr.2021.100712] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 01/15/2021] [Accepted: 01/16/2021] [Indexed: 11/28/2022] Open
Abstract
Congenital corneal opacities (CCO) are a group of blinding corneal disorders, where the underlying molecular mechanisms are poorly understood. Phenotyping through specialized imaging and histopathology analysis, together with assessment of key transcriptomic changes (including glycosaminoglycan metabolic enzymes) in cornea(s) with CCO from a case of Fanconi anemia is the approach taken in this study to identify causal mechanisms. Based on our findings, we propose a novel mechanism and two key players contributing to CCO.
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Affiliation(s)
- Bharesh K Chauhan
- UPMC Eye Center, Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA.,Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Anagha Medsinge
- UPMC Eye Center, Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Hannah L Scanga
- UPMC Eye Center, Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA
| | - Charleen T Chu
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Ken K Nischal
- UPMC Eye Center, Children's Hospital of Pittsburgh, Pittsburgh, PA 15224, USA.,Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
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20
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O-GlcNAcylation of RAF1 increases its stabilization and induces the renal fibrosis. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165556. [DOI: 10.1016/j.bbadis.2019.165556] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Revised: 08/31/2019] [Accepted: 09/11/2019] [Indexed: 01/11/2023]
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21
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AbuSamra DB, Argüeso P. Lectin-Glycan Interactions in Corneal Infection and Inflammation. Front Immunol 2018; 9:2338. [PMID: 30349544 PMCID: PMC6186829 DOI: 10.3389/fimmu.2018.02338] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 09/20/2018] [Indexed: 11/13/2022] Open
Abstract
The cornea is an extraordinary component of vision that functions as the principal barrier to pathogens in the eye while allowing light transmission into the retina. Understanding the cellular and molecular mechanisms that maintain homeostasis in this tissue is the subject of intense scientific study given the high prevalence of corneal disease. Over the past decade, the interactions between lectins and glycans on plasma membranes have emerged as important regulatory factors in corneal biology. In particular, members of the galectin family have been shown to bind multiple β-galactoside-containing receptors to regulate immunopathological processes associated with viral and bacterial infection, transplantation, wound healing, dry eye, angiogenesis, and lymphangiogenesis. In this review, we describe the current understanding of how these surface interactions intersect with different pathways to activate unique cellular responses in cornea as well as their potential therapeutic implications.
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Affiliation(s)
- Dina B AbuSamra
- Department of Ophthalmology, Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, United States
| | - Pablo Argüeso
- Department of Ophthalmology, Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA, United States
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