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Niibori-Nambu A, Wang CQ, Chin DWL, Chooi JY, Hosoi H, Sonoki T, Tham CY, Nah GSS, Cirovic B, Tan DQ, Takizawa H, Sashida G, Goh Y, Tng J, Fam WN, Fullwood MJ, Suda T, Yang H, Tergaonkar V, Taniuchi I, Li S, Chng WJ, Osato M. Integrin-α9 overexpression underlies the niche-independent maintenance of leukemia stem cells in acute myeloid leukemia. Gene 2024; 928:148761. [PMID: 39002785 DOI: 10.1016/j.gene.2024.148761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Revised: 06/16/2024] [Accepted: 07/10/2024] [Indexed: 07/15/2024]
Abstract
Leukemia stem cells (LSCs) are widely believed to reside in well-characterized bone marrow (BM) niches; however, the capacity of the BM niches to accommodate LSCs is insufficient, and a significant proportion of LSCs are instead maintained in regions outside the BM. The molecular basis for this niche-independent behavior of LSCs remains elusive. Here, we show that integrin-α9 overexpression (ITGA9 OE) plays a pivotal role in the extramedullary maintenance of LSCs by molecularly mimicking the niche-interacting status, through the binding with its soluble ligand, osteopontin (OPN). Retroviral insertional mutagenesis conducted on leukemia-prone Runx-deficient mice identified Itga9 OE as a novel leukemogenic event. Itga9 OE activates Akt and p38MAPK signaling pathways. The elevated Myc expression subsequently enhances ribosomal biogenesis to overcome the cell integrity defect caused by the preexisting Runx alteration. The Itga9-Myc axis, originally discovered in mice, was further confirmed in multiple human acute myeloid leukemia (AML) subtypes, other than RUNX leukemias. In addition, ITGA9 was shown to be a functional LSC marker of the best prognostic value among 14 known LSC markers tested. Notably, the binding of ITGA9 with soluble OPN, a known negative regulator against HSC activation, induced LSC dormancy, while the disruption of ITGA9-soluble OPN interaction caused rapid cell propagation. These findings suggest that the ITGA9 OE increases both actively proliferating leukemia cells and dormant LSCs in a well-balanced manner, thereby maintaining LSCs. The ITGA9 OE would serve as a novel therapeutic target in AML.
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Affiliation(s)
- Akiko Niibori-Nambu
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; Department of Tumor Genetics and Biology, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan
| | - Chelsia Qiuxia Wang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; Bioprocessing Technology Institute (BTI), Agency for Science, Technology and Research (A*STAR), Singapore, Singapore; Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Desmond Wai Loon Chin
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Jing Yuan Chooi
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Hiroki Hosoi
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; Department of Hematology/Oncology, Wakayama Medical University, Wakayama, Japan
| | - Takashi Sonoki
- Department of Hematology/Oncology, Wakayama Medical University, Wakayama, Japan
| | - Cheng-Yong Tham
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Giselle Sek Suan Nah
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Branko Cirovic
- Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Darren Qiancheng Tan
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Hitoshi Takizawa
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Goro Sashida
- International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Yufen Goh
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Jiaqi Tng
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Wee Nih Fam
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Melissa Jane Fullwood
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; School of Biological Sciences, Nanyang Technological University, Singapore, Singapore
| | - Toshio Suda
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan; Institute of Hematology, Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin, China
| | - Henry Yang
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore
| | - Vinay Tergaonkar
- Laboratory of NFκB Signalling, Institute of Molecular and Cell Biology (IMCB), Agency for Science, Technology and Research (A*STAR), Singapore, Republic of Singapore
| | - Ichiro Taniuchi
- Laboratory for Transcriptional Regulation, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Shang Li
- Cancer and Stem Cell Biology Program, Duke-NUS Medical School, Singapore, Singapore
| | - Wee Joo Chng
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; National University Cancer Institute, Singapore; National University Health System, Singapore.
| | - Motomi Osato
- Cancer Science Institute of Singapore, National University of Singapore, Singapore, Singapore; International Research Center for Medical Sciences, Kumamoto University, Kumamoto, Japan; Department of General Internal Medicine, Kumamoto Kenhoku Hospital, Kumamoto, Japan.
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2
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Legare S, Heide F, Gabir H, Rafiei F, Meier M, Padilla-Meier GP, Koch M, Stetefeld J. Identifying the molecular basis of Laminin N-terminal domain Ca 2+ binding using a hybrid approach. Biophys J 2024; 123:2422-2430. [PMID: 38851889 PMCID: PMC11365105 DOI: 10.1016/j.bpj.2024.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 02/13/2024] [Accepted: 06/06/2024] [Indexed: 06/10/2024] Open
Abstract
Ca2+ is a highly abundant ion involved in numerous biological processes, particularly in multicellular eukaryotic organisms where it exerts many of these functions through interactions with Ca2+ binding proteins. The laminin N-terminal (LN) domain is found in members of the laminin and netrin protein families where it plays a critical role in the function of these proteins. The LN domain of laminins and netrins is a Ca2+ binding domain and in many cases requires Ca2+ to perform its biological function. Here, we conduct a detailed examination of the molecular basis of the LN domain Ca2+ interaction combining structural, computational, bioinformatics, and biophysical techniques. By combining computational and bioinformatic techniques with x-ray crystallography we explore the molecular basis of the LN domain Ca2+ interaction and identify a conserved sequence present in Ca2+ binding LN domains. These findings enable a sequence-based prediction of LN domain Ca2+ binding ability. We use thermal shift assays and isothermal titration calorimetry to explore the biophysical properties of the LN domain Ca2+ interaction. We show that the netrin-1 LN domain exhibits a high affinity and specificity for Ca2+, which structurally stabilizes the LN domain. This study elucidates the molecular foundation of the LN domain Ca2+ binding interaction and provides a detailed functional characterization of this essential interaction, advancing our understanding of protein-Ca2+ dynamics within the context of the LN domain.
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Affiliation(s)
- Scott Legare
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, Canada.
| | - Fabian Heide
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Haben Gabir
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Faride Rafiei
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Markus Meier
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, Canada
| | | | - Manuel Koch
- Center for Biochemistry II, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany; Institute for Dental Research and Oral Musculoskeletal Biology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany; Center for Molecular Medicine Cologne, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany
| | - Jörg Stetefeld
- Department of Chemistry, University of Manitoba, Winnipeg, Manitoba, Canada.
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3
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Kim H, Bae S, Kim SJ. Increased SNAI2 expression and defective collagen adhesion in cells with pediatric dementia, juvenile ceroid lipofuscinosis. Biochem Biophys Res Commun 2024; 738:150561. [PMID: 39154552 DOI: 10.1016/j.bbrc.2024.150561] [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: 08/07/2024] [Accepted: 08/14/2024] [Indexed: 08/20/2024]
Abstract
Dementia-related neurodegenerative diseases (NDDs), including Alzheimer's disease (AD), are known to be caused by accumulation of toxic proteins. However, the molecular mechanisms that cause neurodegeneration and its biophysical effects on cells remain unclear. In this study, we used juvenile neuronal ceroid lipofuscinosis (JNCL), a pediatric dementia with a clear etiology of mutations in ceroid lipofuscinosis neuronal 3 (CLN3), to explore the changes in cell adhesion, a biophysical process that regulates neuronal development and survival. We used JNCL cerebral organoid gene expression datasets to identify the biological pathways that affect neural development, and found enriched gene expression in the epithelial-mesenchymal transition (EMT) pathway and increased expression of its inducer snail family transcriptional repressor 2 (SNAI2). A cell adhesion assay using lymphoblasts from patients with JNCL revealed defective adhesion to cell culture plates, glass surfaces, collagen type I, and neuroblast-like cells. To determine whether inhibition of EMT could improve the cell adhesion of JNCL lymphoblasts, we used all-trans retinoic acid, a well-known EMT inhibitor and inducer of neural differentiation. In JNCL lymphoblasts, ATRA treatment enhanced adhesion to collagen type I and these effects were abolished by Ca2+ chelator. These results provide new insights into the role of CLN3 and cell adhesion in the pathogenesis of NDD.
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Affiliation(s)
- Hyungkuen Kim
- Department of Biotechnology, College of Life and Health Sciences, Hoseo University, Baebang, Asan, Chungnam, 31499, South Korea
| | - Sechul Bae
- Jung Cosmetic Corporation, Sinchang, Asan, Chungnam, 31537, South Korea
| | - Sung-Jo Kim
- Department of Biotechnology, College of Life and Health Sciences, Hoseo University, Baebang, Asan, Chungnam, 31499, South Korea.
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4
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Li Y, Wang S, Zhang Y, Liu Z, Zheng Y, Zhang K, Chen S, Lv X, Huang M, Pan X, Zheng Y, Yuan M, Ge G, Zeng YA, Lin C, Chen J. Ca 2+ transients on the T cell surface trigger rapid integrin activation in a timescale of seconds. Nat Commun 2024; 15:6131. [PMID: 39033133 PMCID: PMC11271479 DOI: 10.1038/s41467-024-50464-0] [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: 09/10/2023] [Accepted: 07/12/2024] [Indexed: 07/23/2024] Open
Abstract
One question in lymphocyte homing is how integrins are rapidly activated to enable immediate arrest of fast rolling lymphocytes upon encountering chemokines at target vascular beds given the slow chemokine-induced integrin inside-out activation. Herein we demonstrate that chemokine CCL25-triggered Ca2+ influx induces T cell membrane-proximal external Ca2+ concentration ([Ca2+]ex) drop in 6 s from physiological concentration 1.2 mM to 0.3 mM, a critical extracellular Ca2+ threshold for inducing αLβ2 activation, triggering rapid αLβ2 activation and T cell arrest before occurrence of αLβ2 inside-out activation. Talin knockdown inhibits the slow inside-out activation of αLβ2 but not [Ca2+]ex drop-triggered αLβ2 quick activation. Blocking Ca2+ influx significantly suppresses T cell rolling-to-arrest transition and homing to skin lesions in a mouse psoriasis model, thus alleviating skin inflammation. [Ca2+]ex decrease-triggered rapid integrin activation bridges the gap between initial chemokine stimulation and slow integrin inside-out activation, ensuring immediate lymphocyte arrest and subsequent diapedesis on the right location.
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Affiliation(s)
- Yue Li
- State Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - ShiHui Wang
- State Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - YouHua Zhang
- Department of Pathology, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, China
| | - ZhaoYuan Liu
- State Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - YunZhe Zheng
- State Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - Kun Zhang
- State Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - ShiYang Chen
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China
| | - XiaoYing Lv
- Fundamental Research Center, Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - MengWen Huang
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China
| | - XingChao Pan
- State Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - YaJuan Zheng
- State Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - MengYa Yuan
- State Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
| | - GaoXiang Ge
- State Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China
| | - Yi Arial Zeng
- State Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China
| | - ChangDong Lin
- Fundamental Research Center, Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Life Sciences and Technology, Tongji University, Shanghai, China.
- Frontier Science Center for Stem Cell Research, Tongji University, Shanghai, China.
| | - JianFeng Chen
- State Key Laboratory of Multi-Cell Systems, Shanghai Institute of Biochemistry and Cell Biology, Center for Excellence in Molecular Cell Science, Chinese Academy of Sciences, Shanghai, China.
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou, China.
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5
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Janke U, Geist N, Weilbeer E, Levin W, Delcea M. Impact of Protein Corona Formation and Polystyrene Nanoparticle Functionalisation on the Interaction with Dynamic Biomimetic Membranes Comprising of Integrin. Chembiochem 2024; 25:e202400188. [PMID: 38743506 DOI: 10.1002/cbic.202400188] [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: 02/29/2024] [Revised: 05/08/2024] [Accepted: 05/14/2024] [Indexed: 05/16/2024]
Abstract
Plastics, omnipresent in the environment, have become a global concern due to their durability and limited biodegradability, especially in the form of microparticles and nanoparticles. Polystyrene (PS), a key plastic type, is susceptible to fragmentation and surface alterations induced by environmental factors or industrial processes. With widespread human exposure through pollution and diverse industrial applications, understanding the physiological impact of PS, particularly in nanoparticle form (PS-NPs), is crucial. This study focuses on the interaction of PS-NPs with model blood proteins, emphasising the formation of a protein corona, and explores the subsequent contact with platelet membrane mimetics using experimental and theoretical approaches. The investigation involves αIIbβ3-expressing cells and biomimetic membranes, enabling real-time and label-free nanoscale precision. By employing quartz-crystal microbalance with dissipation monitoring studies, the concentration-dependent cytotoxic effects of differently functionalised ~210 nm PS-NPs on HEK293 cells overexpressing αIIbβ3 are evaluated in detail. The study unveils insights into the molecular details of PS-NP interaction with supported lipid bilayers, demonstrating that a protein corona formed in the presence of exemplary blood proteins offers protection against membrane damage, mitigating PS-NP cytotoxicity.
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Affiliation(s)
- Una Janke
- Institute of Biochemistry, University Greifswald, Felix-Hausdorff-Str. 4, 17489, Greifswald, Germany
| | - Norman Geist
- Institute of Biochemistry, University Greifswald, Felix-Hausdorff-Str. 4, 17489, Greifswald, Germany
| | - Emma Weilbeer
- Institute of Biochemistry, University Greifswald, Felix-Hausdorff-Str. 4, 17489, Greifswald, Germany
| | - Wanda Levin
- Institute of Biochemistry, University Greifswald, Felix-Hausdorff-Str. 4, 17489, Greifswald, Germany
| | - Mihaela Delcea
- Institute of Biochemistry, University Greifswald, Felix-Hausdorff-Str. 4, 17489, Greifswald, Germany
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6
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Solidoro R, Centonze A, Miciaccia M, Baldelli OM, Armenise D, Ferorelli S, Perrone MG, Scilimati A. Fluorescent imaging probes for in vivo ovarian cancer targeted detection and surgery. Med Res Rev 2024; 44:1800-1866. [PMID: 38367227 DOI: 10.1002/med.22027] [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: 07/05/2023] [Revised: 12/05/2023] [Accepted: 01/25/2024] [Indexed: 02/19/2024]
Abstract
Ovarian cancer is the most lethal gynecological cancer, with a survival rate of approximately 40% at five years from the diagno. The first-line treatment consists of cytoreductive surgery combined with chemotherapy (platinum- and taxane-based drugs). To date, the main prognostic factor is related to the complete surgical resection of tumor lesions, including occult micrometastases. The presence of minimal residual diseases not detected by visual inspection and palpation during surgery significantly increases the risk of disease relapse. Intraoperative fluorescence imaging systems have the potential to improve surgical outcomes. Fluorescent tracers administered to the patient may support surgeons for better real-time visualization of tumor lesions during cytoreductive procedures. In the last decade, consistent with the discovery of an increasing number of ovarian cancer-specific targets, a wide range of fluorescent agents were identified to be employed for intraoperatively detecting ovarian cancer. Here, we present a collection of fluorescent probes designed and developed for fluorescence-guided ovarian cancer surgery. Original articles published between 2011 and November 2022 focusing on fluorescent probes, currently under preclinical and clinical investigation, were searched in PubMed. The keywords used were targeted detection, ovarian cancer, fluorescent probe, near-infrared fluorescence, fluorescence-guided surgery, and intraoperative imaging. All identified papers were English-language full-text papers, and probes were classified based on the location of the biological target: intracellular, membrane, and extracellular.
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Affiliation(s)
- Roberta Solidoro
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari, Bari, Italy
| | - Antonella Centonze
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari, Bari, Italy
| | - Morena Miciaccia
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari, Bari, Italy
| | - Olga Maria Baldelli
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari, Bari, Italy
| | - Domenico Armenise
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari, Bari, Italy
| | - Savina Ferorelli
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari, Bari, Italy
| | | | - Antonio Scilimati
- Department of Pharmacy-Pharmaceutical Sciences, University of Bari, Bari, Italy
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7
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Yurchenco PD, Kulczyk AW. Polymerizing laminins in development, health, and disease. J Biol Chem 2024; 300:107429. [PMID: 38825010 PMCID: PMC11260871 DOI: 10.1016/j.jbc.2024.107429] [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: 01/11/2024] [Revised: 05/12/2024] [Accepted: 05/26/2024] [Indexed: 06/04/2024] Open
Abstract
Polymerizing laminins are multi-domain basement membrane (BM) glycoproteins that self-assemble into cell-anchored planar lattices to establish the initial BM scaffold. Nidogens, collagen-IV and proteoglycans then bind to the scaffold at different domain loci to create a mature BM. The LN domains of adjacent laminins bind to each other to form a polymer node, while the LG domains attach to cytoskeletal-anchoring integrins and dystroglycan, as well as to sulfatides and heparan sulfates. The polymer node, the repeating unit of the polymer scaffold, is organized into a near-symmetrical triskelion. The structure, recently solved by cryo-electron microscopy in combination with AlphaFold2 modeling and biochemical studies, reveals how the LN surface residues interact with each other and how mutations cause failures of self-assembly in an emerging group of diseases, the LN-lamininopathies, that include LAMA2-related dystrophy and Pierson syndrome.
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Affiliation(s)
- Peter D Yurchenco
- Department of Pathology & Laboratory Medicine, Robert Wood Johnson Medical School, Rutgers University, Piscataway, New Jersey, USA.
| | - Arkadiusz W Kulczyk
- Department of Biochemistry and Microbiology, Institute for Quantitative Biomedicine, Rutgers University, Piscataway, New Jersey, USA
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8
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Kovács KD, Szittner Z, Magyaródi B, Péter B, Szabó B, Vörös A, Kanyó N, Székács I, Horvath R. Optical sensor reveals the hidden influence of cell dissociation on adhesion measurements. Sci Rep 2024; 14:11719. [PMID: 38778185 PMCID: PMC11111754 DOI: 10.1038/s41598-024-61485-6] [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: 12/15/2023] [Accepted: 05/06/2024] [Indexed: 05/25/2024] Open
Abstract
Cell adhesion experiments are important in tissue engineering and for testing new biologically active surfaces, prostheses, and medical devices. Additionally, the initial state of adhesion (referred to as nascent adhesion) plays a key role and is currently being intensively researched. A critical step in handling all adherent cell types is their dissociation from their substrates for further processing. Various cell dissociation methods and reagents are used in most tissue culture laboratories (here, cell dissociation from the culture surface, cell harvesting, and cell detachment are used interchangeably). Typically, the dissociated cells are re-adhered for specific measurements or applications. However, the impact of the choice of dissociation method on cell adhesion in subsequent measurements, especially when comparing the adhesivity of various surfaces, is not well clarified. In this study, we demonstrate that the application of a label-free optical sensor can precisely quantify the effect of cell dissociation methods on cell adhesivity, both at the single-cell and population levels. The optical measurements allow for high-resolution monitoring of cellular adhesion without interfering with the physiological state of the cells. We found that the choice of reagent significantly alters cell adhesion on various surfaces. Our results clearly demonstrate that biological conclusions about cellular adhesion when comparing various surfaces are highly dependent on the employed dissociation method. Neglecting the choice of cellular dissociation can lead to misleading conclusions when evaluating cell adhesion data from various sources and comparing the adhesivity of two different surfaces (i.e., determining which surface is more or less adhesive).
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Affiliation(s)
- Kinga Dóra Kovács
- Nanobiosensorics Laboratory, MFA, Centre for Energy Research, HUN-REN, Budapest, Hungary
- Department of Biological Physics, ELTE Eötvös University, Budapest, Hungary
| | - Zoltán Szittner
- Nanobiosensorics Laboratory, MFA, Centre for Energy Research, HUN-REN, Budapest, Hungary
| | - Beatrix Magyaródi
- Nanobiosensorics Laboratory, MFA, Centre for Energy Research, HUN-REN, Budapest, Hungary
- Chemical Engineering and Material Sciences Doctoral School, University of Pannonia, Veszprém, Hungary
| | - Beatrix Péter
- Nanobiosensorics Laboratory, MFA, Centre for Energy Research, HUN-REN, Budapest, Hungary
| | - Bálint Szabó
- Department of Biological Physics, ELTE Eötvös University, Budapest, Hungary
- Cellsorter Kft., Budapest, Hungary
| | - Alexa Vörös
- Nanobiosensorics Laboratory, MFA, Centre for Energy Research, HUN-REN, Budapest, Hungary
| | - Nicolett Kanyó
- Nanobiosensorics Laboratory, MFA, Centre for Energy Research, HUN-REN, Budapest, Hungary
| | - Inna Székács
- Nanobiosensorics Laboratory, MFA, Centre for Energy Research, HUN-REN, Budapest, Hungary
| | - Robert Horvath
- Nanobiosensorics Laboratory, MFA, Centre for Energy Research, HUN-REN, Budapest, Hungary.
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9
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Zhou T, Solis NV, Marshall M, Yao Q, Garleb R, Yang M, Pearlman E, Filler SG, Liu H. Hyphal Als proteins act as CR3 ligands to promote immune responses against Candida albicans. Nat Commun 2024; 15:3926. [PMID: 38724513 PMCID: PMC11082240 DOI: 10.1038/s41467-024-48093-8] [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: 10/17/2023] [Accepted: 04/19/2024] [Indexed: 05/12/2024] Open
Abstract
Patients with decreased levels of CD18 (β2 integrins) suffer from life-threatening bacterial and fungal infections. CD11b, the α subunit of integrin CR3 (CD11b/CD18, αMβ2), is essential for mice to fight against systemic Candida albicans infections. Live elongating C. albicans activates CR3 in immune cells. However, the hyphal ligands that activate CR3 are not well defined. Here, we discovered that the C. albicans Als family proteins are recognized by the I domain of CD11b in macrophages. This recognition synergizes with the β-glucan-bound lectin-like domain to activate CR3, thereby promoting Syk signaling and inflammasome activation. Dectin-2 activation serves as the "outside-in signaling" for CR3 activation at the entry site of incompletely sealed phagosomes, where a thick cuff of F-actin forms to strengthen the local interaction. In vitro, CD18 partially contributes to IL-1β release from dendritic cells induced by purified hyphal Als3. In vivo, Als3 is vital for C. albicans clearance in mouse kidneys. These findings uncover a novel family of ligands for the CR3 I domain that promotes fungal clearance.
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Affiliation(s)
- Tingting Zhou
- Department of Biological Chemistry, University of California, Irvine, CA, USA
| | - Norma V Solis
- Division of Infectious Diseases, Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Michaela Marshall
- Department of Physiology and Biophysics, University of California, Irvine, CA, USA
| | - Qing Yao
- Division of Biology and Biological Engineering, California Institute of Technology, Pasadena, CA, USA
- Gilead Sciences Inc., Foster City, CA, USA
| | - Rachel Garleb
- Department of Biological Chemistry, University of California, Irvine, CA, USA
| | - Mengli Yang
- Department of Biological Chemistry, University of California, Irvine, CA, USA
- Zymo Research Corporation, Irvine, CA, USA
| | - Eric Pearlman
- Department of Physiology and Biophysics, University of California, Irvine, CA, USA
| | - Scott G Filler
- Division of Infectious Diseases, Lundquist Institute for Biomedical Innovation at Harbor-UCLA Medical Center, Torrance, CA, USA
- David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
| | - Haoping Liu
- Department of Biological Chemistry, University of California, Irvine, CA, USA.
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10
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Watanabe-Takano H, Kato K, Oguri-Nakamura E, Ishii T, Kobayashi K, Murata T, Tsujikawa K, Miyata T, Kubota Y, Hanada Y, Nishiyama K, Watabe T, Fässler R, Ishii H, Mochizuki N, Fukuhara S. Endothelial cells regulate alveolar morphogenesis by constructing basement membranes acting as a scaffold for myofibroblasts. Nat Commun 2024; 15:1622. [PMID: 38438343 PMCID: PMC10912381 DOI: 10.1038/s41467-024-45910-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: 04/17/2023] [Accepted: 02/06/2024] [Indexed: 03/06/2024] Open
Abstract
Alveologenesis is a spatially coordinated morphogenetic event, during which alveolar myofibroblasts surround the terminal sacs constructed by epithelial cells and endothelial cells (ECs), then contract to form secondary septa to generate alveoli in the lungs. Recent studies have demonstrated the important role of alveolar ECs in this morphogenetic event. However, the mechanisms underlying EC-mediated alveologenesis remain unknown. Herein, we show that ECs regulate alveologenesis by constructing basement membranes (BMs) acting as a scaffold for myofibroblasts to induce septa formation through activating mechanical signaling. Rap1, a small GTPase of the Ras superfamily, is known to stimulate integrin-mediated cell adhesions. EC-specific Rap1-deficient (Rap1iECKO) mice exhibit impaired septa formation and hypo-alveolarization due to the decreased mechanical signaling in myofibroblasts. In Rap1iECKO mice, ECs fail to stimulate integrin β1 to recruit Collagen type IV (Col-4) into BMs required for myofibroblast-mediated septa formation. Consistently, EC-specific integrin β1-deficient mice show hypo-alveolarization, defective mechanical signaling in myofibroblasts, and disorganized BMs. These data demonstrate that alveolar ECs promote integrin β1-mediated Col-4 recruitment in a Rap1-dependent manner, thereby constructing BMs acting as a scaffold for myofibroblasts to induce mechanical signal-mediated alveologenesis. Thus, this study unveils a mechanism of organ morphogenesis mediated by ECs through intrinsic functions.
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Affiliation(s)
- Haruko Watanabe-Takano
- Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan.
| | - Katsuhiro Kato
- Department of Cardiology, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Eri Oguri-Nakamura
- Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Tomohiro Ishii
- Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Koji Kobayashi
- Department of Animal Radiology, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Takahisa Murata
- Department of Animal Radiology, Graduate School of Agricultural and Life Sciences, University of Tokyo, 1-1-1, Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
| | - Koichiro Tsujikawa
- Department of Anatomy and Cell Biology, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Takaki Miyata
- Department of Anatomy and Cell Biology, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
| | - Yoshiaki Kubota
- Department of Anatomy, Keio University School of Medicine, 35 Shinanomachi, Shinjyuku-ku, Tokyo, 160-8582, Japan
| | - Yasuyuki Hanada
- Department of Cardiology, Graduate School of Medicine, Nagoya University, 65 Tsurumai-cho, Showa-ku, Nagoya, Aichi, 466-8550, Japan
- Laboratory for Vascular and Cellular Dynamics, Department of Medical Sciences, University of Miyazaki, Miyazaki City, Miyazaki, 889-1962, Japan
| | - Koichi Nishiyama
- Laboratory for Vascular and Cellular Dynamics, Department of Medical Sciences, University of Miyazaki, Miyazaki City, Miyazaki, 889-1962, Japan
| | - Tetsuro Watabe
- Department of Biochemistry, Graduate, School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, 113-8549, Japan
| | - Reinhard Fässler
- Department of Molecular Medicine, Max Planck Institute of Biochemistry, Am Klopferspitz 18, 82152, Martinsried, Germany
| | - Hirotaka Ishii
- Department of Anatomy and Neurobiology, Graduate School of Medicine, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan
| | - Naoki Mochizuki
- Department of Cell Biology, National Cerebral and Cardiovascular Center Research Institute, 6-1 Kishibe-shimmachi, Suita, Osaka, 564-8565, Japan
| | - Shigetomo Fukuhara
- Department of Molecular Pathophysiology, Institute of Advanced Medical Sciences, Nippon Medical School, 1-1-5 Sendagi, Bunkyo-ku, Tokyo, 113-8602, Japan.
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11
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Ibrahim IH. Metalloproteins and metalloproteomics in health and disease. ADVANCES IN PROTEIN CHEMISTRY AND STRUCTURAL BIOLOGY 2024; 141:123-176. [PMID: 38960472 DOI: 10.1016/bs.apcsb.2023.12.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
Metalloproteins represents more than one third of human proteome, with huge variation in physiological functions and pathological implications, depending on the metal/metals involved and tissue context. Their functions range from catalysis, bioenergetics, redox, to DNA repair, cell proliferation, signaling, transport of vital elements, and immunity. The human metalloproteomic studies revealed that many families of metalloproteins along with individual metalloproteins are dysregulated under several clinical conditions. Also, several sorts of interaction between redox- active or redox- inert metalloproteins are observed in health and disease. Metalloproteins profiling shows distinct alterations in neurodegenerative diseases, cancer, inflammation, infection, diabetes mellitus, among other diseases. This makes metalloproteins -either individually or as families- a promising target for several therapeutic approaches. Inhibitors and activators of metalloenzymes, metal chelators, along with artificial metalloproteins could be versatile in diagnosis and treatment of several diseases, in addition to other biomedical and industrial applications.
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Affiliation(s)
- Iman Hassan Ibrahim
- Department of Biochemistry and Molecular Biology, Faculty of Pharmacy (Girls), Al-Azhar University, Cairo, Egypt.
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12
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Ramachandran B, Sabbatier G, Bowden OM, Campbell K, Fekete N, Girard-Lauriault PL, Hoesli CA. Human mesenchymal stromal cell adhesion and expansion on fluoropolymer surfaces modified with oxygen and nitrogen-rich plasma polymers. Colloids Surf B Biointerfaces 2024; 234:113740. [PMID: 38199188 DOI: 10.1016/j.colsurfb.2023.113740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Revised: 12/12/2023] [Accepted: 12/28/2023] [Indexed: 01/12/2024]
Abstract
Fluorinated ethylene propylene (FEP) vessels are of significant interest for therapeutic cell biomanufacturing applications due to their chemical inertness, hydrophobic surface, and high oxygen permeability. However, these properties also limit the adhesion and survival of anchorage-dependent cells. Here, we develop novel plasma polymer coatings to modify FEP surfaces, enhancing the adhesion and expansion of human mesenchymal stromal cells (hMSCs). Similar to commercially available tissue culture polystyrene vessels, oxygen-rich or nitrogen-rich surface chemistries can be achieved using this approach. While steam sterilization increased the roughness of the coatings and altered the surface chemistry, the overall wettability and oxygen or nitrogen-rich nature of the coatings were maintained. In the absence of proteins during initial cell attachment, cells adhered to surfaces even in the presence of chelators, whereas adhesion was abrogated with chelator in a protein-containing medium, suggesting that integrin-mediated adhesion predominates over physicochemical tethering in normal protein-containing cell seeding conditions. Albumin adsorption was more elevated on nitrogen-rich coatings compared to the oxygen-rich coatings, which was correlated with a higher extent of hMSC expansion after 3 days. Both the oxygen and nitrogen-rich coatings significantly improved hMSC adhesion and expansion compared to untreated FEP. FEP surfaces with nitrogen-rich coatings were practically equivalent to commercially available standard tissue culture-treated polystyrene surfaces in terms of hMSC yields. Plasma polymer coatings show significant promise in expanding the potential usage of FEP-based culture vessels for cell therapy applications.
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Affiliation(s)
| | - Gad Sabbatier
- Department of Chemical Engineering, McGill University, Montréal, Canada
| | - Olivia M Bowden
- Department of Chemical Engineering, McGill University, Montréal, Canada
| | - Katie Campbell
- Saint-Gobain Ceramics & Plastics, Inc., Northboro R&D Center, Northborough, MA, USA
| | - Natalie Fekete
- Saint-Gobain Ceramics & Plastics, Inc., Northboro R&D Center, Northborough, MA, USA
| | | | - Corinne A Hoesli
- Department of Chemical Engineering, McGill University, Montréal, Canada.
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13
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Godbout C, Ryan G, Ramnaraign DJ, Hegner C, Desjardins S, Gagnon S, Bates BD, Whatley I, Schemitsch EH, Nauth A. Optimal delivery of endothelial progenitor cells in a rat model of critical-size bone defects. J Orthop Res 2024; 42:193-201. [PMID: 37416978 DOI: 10.1002/jor.25658] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Revised: 05/21/2023] [Accepted: 07/01/2023] [Indexed: 07/08/2023]
Abstract
Nonunion and segmental bone defects are complex issues in orthopedic trauma. The use of endothelial progenitor cells (EPCs), as part of a cell-based therapy for bone healing is a promising approach. In preclinical studies, culture medium (CM) is commonly used to deliver EPCs to the defect site, which has the potential for immunogenicity in humans. The goal of this study was to find an effective and clinically translatable delivery medium for EPCs. Accordingly, this study compared EPCs delivered in CM, phosphate-buffered saline (PBS), platelet-poor plasma (PPP), and platelet-rich plasma (PRP) in a rat model of femoral critical-size defects. Fischer 344 rats (n = 35) were divided into six groups: EPC+CM, EPC+PBS, EPC+PPP, EPC+PRP, PPP alone, and PRP alone. A 5 mm mid-diaphyseal defect was created in the right femur and stabilized with a miniplate. The defect was filled with a gelatin scaffold impregnated with the corresponding treatment. Radiographic, microcomputed tomography and biomechanical analyses were performed. Overall, regardless of the delivery medium, groups that received EPCs had higher radiographic scores and union rates, higher bone volume, and superior biomechanical properties compared to groups treated with PPP or PRP alone. There were no significant differences in any outcomes between EPC subgroups or between PPP and PRP alone. These results suggest that EPCs are effective in treating segmental defects in a rat model of critical-size defects regardless of the delivery medium used. Consequently, PBS could be the optimal medium for delivering EPCs, given its low cost, ease of preparation, accessibility, noninvasiveness, and nonimmunogenic properties.
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Affiliation(s)
- Charles Godbout
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital-Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada
| | - Gareth Ryan
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital-Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada
| | - David J Ramnaraign
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital-Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada
| | - Christian Hegner
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital-Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada
| | - Sarah Desjardins
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital-Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada
| | - Stéphane Gagnon
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital-Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada
| | - Brent D Bates
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital-Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada
| | - Ian Whatley
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital-Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada
| | - Emil H Schemitsch
- Department of Surgery, Division of Orthopaedic Surgery, University of Western Ontario, London, Ontario, Canada
| | - Aaron Nauth
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital-Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada
- Department of Surgery, Division of Orthopaedic Surgery, St. Michael's Hospital-Unity Health Toronto, University of Toronto, Toronto, Ontario, Canada
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14
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Zhu S, Jaffiol R, Crunteanu A, Vézy C, Chan ST, Yuan W, Ho HP, Zeng S. Label-free biosensing with singular-phase-enhanced lateral position shift based on atomically thin plasmonic nanomaterials. LIGHT, SCIENCE & APPLICATIONS 2024; 13:2. [PMID: 38161210 PMCID: PMC10757996 DOI: 10.1038/s41377-023-01345-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 11/18/2023] [Accepted: 11/24/2023] [Indexed: 01/03/2024]
Abstract
Rapid plasmonic biosensing has attracted wide attention in early disease diagnosis and molecular biology research. However, it was still challenging for conventional angle-interrogating plasmonic sensors to obtain higher sensitivity without secondary amplifying labels such as plasmonic nanoparticles. To address this issue, we developed a plasmonic biosensor based on the enhanced lateral position shift by phase singularity. Such singularity presents as a sudden phase retardation at the dark point of reflection from resonating plasmonic substrate, leading to a giant position shift on reflected beam. Herein, for the first time, the atomically thin layer of Ge2Sb2Te5 (GST) on silver nanofilm was demonstrated as a novel phase-response-enhancing plasmonic material. The GST layer was not only precisely engineered to singularize phase change but also served as a protective layer for active silver nanofilm. This new configuration has achieved a record-breaking largest position shift of 439.3 μm measured in calibration experiments with an ultra-high sensitivity of 1.72 × 108 nm RIU-1 (refractive index unit). The detection limit was determined to be 6.97 × 10-7 RIU with a 0.12 μm position resolution. Besides, a large figure of merit (FOM) of 4.54 × 1011 μm (RIU∙°)-1 was evaluated for such position shift interrogation, enabling the labelfree detection of trace amounts of biomolecules. In targeted biosensing experiments, the optimized sensor has successfully detected small cytokine biomarkers (TNF-α and IL-6) with the lowest concentration of 1 × 10-16 M. These two molecules are the key proinflammatory cancer markers in clinical diagnosis, which cannot be directly screened by current clinical techniques. To further validate the selectivity of our sensing systems, we also measured the affinity of integrin binding to arginylglycylaspartic acid (RGD) peptide (a key protein interaction in cell adhesion) with different Mn2+ ion concentrations, ranging from 1 nM to 1 mM.
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Affiliation(s)
- Shaodi Zhu
- Light, Nanomaterials & Nanotechnologies (L2n), CNRS-EMR 7004, University of Technology of Troyes, 10000, Troyes, France
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Rodolphe Jaffiol
- Light, Nanomaterials & Nanotechnologies (L2n), CNRS-EMR 7004, University of Technology of Troyes, 10000, Troyes, France
| | - Aurelian Crunteanu
- XLIM Research Institute, UMR 7252 CNRS/University of Limoges, 123, Avenue Albert Thomas, Limoges, France
| | - Cyrille Vézy
- Light, Nanomaterials & Nanotechnologies (L2n), CNRS-EMR 7004, University of Technology of Troyes, 10000, Troyes, France
| | - Sik-To Chan
- Light, Nanomaterials & Nanotechnologies (L2n), CNRS-EMR 7004, University of Technology of Troyes, 10000, Troyes, France
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Wu Yuan
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Ho-Pui Ho
- Department of Biomedical Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China.
| | - Shuwen Zeng
- Light, Nanomaterials & Nanotechnologies (L2n), CNRS-EMR 7004, University of Technology of Troyes, 10000, Troyes, France.
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15
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Linder S, Barcelona B. Get a grip: Podosomes as potential players in phagocytosis. Eur J Cell Biol 2023; 102:151356. [PMID: 37625234 DOI: 10.1016/j.ejcb.2023.151356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/27/2023] [Accepted: 08/21/2023] [Indexed: 08/27/2023] Open
Abstract
Podosomes have been known for several decades as micron-sized, F-actin-rich structures that play a pivotal role in cell migration and invasion, as they are able to mediate both cell-matrix attachment as well as extracellular matrix degradation. Particularly in monocytic cells, podosomes have been shown to fulfill a variety of additional functions such as sensing of substrate rigidity and topography, or cell-cell fusion. Increasing evidence now points to the involvement of podosome-like structures also during phagocytosis by immune cells such as macrophages, dendritic cells, and neutrophils. Here, we compare the different cell models and experimental set ups where "phagocytic podosomes" have been described. We also discuss the composition and architecture of these structures, their potential involvement in mechanosensing and particle disruption, as well as the pros and cons for addressing them as bona fide podosomes.
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Affiliation(s)
- Stefan Linder
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany.
| | - Bryan Barcelona
- Institute for Medical Microbiology, Virology and Hygiene, University Medical Center Eppendorf, 20246 Hamburg, Germany
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16
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Wang D, Hedayati M, Stuart JD, Madruga LYC, Popat KC, Snow CD, Kipper MJ. Ligand Presentation Inside Protein Crystal Nanopores: Tunable Interfacial Adhesion Noncovalently Modulates Cell Attachment. MATERIALS TODAY. NANO 2023; 24:100432. [PMID: 38370345 PMCID: PMC10871713 DOI: 10.1016/j.mtnano.2023.100432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
Protein crystals with sufficiently large solvent pores can non-covalently adsorb polymers in the pores. In principle, if these polymers contain cell adhesion ligands, the polymer-laden crystals could present ligands to cells with tunable adhesion strength. Moreover, porous protein crystals can store an internal ligand reservoir, so that the surface can be replenished. In this study, we demonstrate that poly(ethylene glycol) terminated with a cyclic cell adhesion ligand peptide (PEG-RGD) can be loaded into porous protein crystals by diffusion. Through atomic force microscopy (AFM), force-distance correlations of the mechanical interactions between activated AFM tips and protein crystals were precisely measured. The activation of AFM tips allows the tips to interact with PEG-RGD that was pre-loaded in the protein crystal nanopores, mimicking how a cell might attach to and pull on the ligand through integrin receptors. The AFM experiments also simultaneously reveal the detailed morphology of the buffer-immersed nanoporous protein crystal surface. We also show that porous protein crystals (without and with loaded PEG-RGD) serve as suitable substrates for attachment and spreading of adipose-derived stem cells. This strategy can be used to design surfaces that non-covalently present multiple different ligands to cells with tunable adhesive strength for each ligand, and with an internal reservoir to replenish the precisely defined crystalline surface.
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Affiliation(s)
- Dafu Wang
- Department of Chemical and Biological Engineering, Colorado State University, 1370Campus Delivery, Fort Collins, CO 80523, U.S.A
- School of Advanced Materials Discovery, Colorado State University, 1617 Campus Delivery, Fort Collins, CO 80523, U.S.A
| | - Mohammadhasan Hedayati
- Department of Chemical and Biological Engineering, Colorado State University, 1370Campus Delivery, Fort Collins, CO 80523, U.S.A
| | - Julius D Stuart
- Department of Chemistry, Colorado State University, 1872 Campus Delivery, FortCollins, CO 80523, U.S.A
| | - Liszt Y C Madruga
- Department of Chemical and Biological Engineering, Colorado State University, 1370Campus Delivery, Fort Collins, CO 80523, U.S.A
| | - Ketul C Popat
- Department of Chemical and Biological Engineering, Colorado State University, 1370Campus Delivery, Fort Collins, CO 80523, U.S.A
| | - Christopher D Snow
- Department of Chemical and Biological Engineering, Colorado State University, 1370Campus Delivery, Fort Collins, CO 80523, U.S.A
- School of Advanced Materials Discovery, Colorado State University, 1617 Campus Delivery, Fort Collins, CO 80523, U.S.A
- Department of Chemistry, Colorado State University, 1872 Campus Delivery, FortCollins, CO 80523, U.S.A
- School of Biomedical Engineering, Colorado State University, 1301 Campus Delivery, Fort Collins, CO 80523, U.S.A
| | - Matt J Kipper
- Department of Chemical and Biological Engineering, Colorado State University, 1370Campus Delivery, Fort Collins, CO 80523, U.S.A
- School of Advanced Materials Discovery, Colorado State University, 1617 Campus Delivery, Fort Collins, CO 80523, U.S.A
- School of Biomedical Engineering, Colorado State University, 1301 Campus Delivery, Fort Collins, CO 80523, U.S.A
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17
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Neeli I, Moarefian M, Kuseladass J, Dwivedi N, Jones C, Radic M. Neutrophil attachment via Mac-1 ( αMβ2; CD11b/CD18; CR3) integrins induces PAD4 deimination of profilin and histone H3. Philos Trans R Soc Lond B Biol Sci 2023; 378:20220247. [PMID: 37778386 PMCID: PMC10542442 DOI: 10.1098/rstb.2022.0247] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 08/07/2023] [Indexed: 10/03/2023] Open
Abstract
Neutrophil adhesion to endothelia, entry into tissues and chemotaxis constitute essential steps in the immune response to infections that drive inflammation. Neutrophils bind to other cells and migrate via adhesion receptors, notably the αMβ2 integrin dimer (also called Mac-1, CR3 or CD11b/CD18). Here, the response of neutrophils to integrin engagement was examined by monitoring the activity of peptidylarginine deiminase 4 (PAD4). Histone H3 deimination was strongly stimulated by manganese, an integrin-activating divalent cation, even in the absence of additional inflammatory stimuli. Manganese-induced cell attachment resulted in neutrophil swarm formation that paralleled histone deimination, whereas antibodies that impair integrin binding prevented both cell adhesion and histone deimination. Manganese treatment led to putative deimination of profilin, a protein that functions as an actin-organizing hub, as detected by two-dimensional gel electrophoresis and citrulline immunoblotting. Cl-amidine, a covalent inhibitor of PAD4, and GSK484, a specific PAD4 inhibitor, blocked profilin deimination. Neutrophil migration toward leukotriene B4 and toward synovial fluid from a rheumatoid arthritis patient were inhibited by chloramidine, thus supporting the contribution of deimination to chemotaxis. The data, based on a simplified system for integrin activation, imply a mechanism whereby integrin attachment coordinates neutrophil responses to inflammation and orchestrates deimination of nuclear and cytoskeletal proteins. This article is part of the Theo Murphy meeting issue 'The virtues and vices of protein citrullination'.
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Affiliation(s)
- Indira Neeli
- Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Maryam Moarefian
- Department of Biological Sciences, Virginia Tech, Blacksburg, VA 24061, USA
| | - Jayalakshmi Kuseladass
- Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Nishant Dwivedi
- Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, TN 38163, USA
| | - Caroline Jones
- Department of Bioengineering, Erik Jonsson School of Engineering and Computer Science, University of Texas at Dallas, Richardson, TX 75080, USA
| | - Marko Radic
- Department of Microbiology, Immunology, and Biochemistry, University of Tennessee Health Science Center, Memphis, TN 38163, USA
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18
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Su Y, Luo Z, Sun D, Yang B, Li Q. The Force-Dependent Mechanism of an Integrin α4β7-MAdCAM-1 Interaction. Int J Mol Sci 2023; 24:16062. [PMID: 38003252 PMCID: PMC10670920 DOI: 10.3390/ijms242216062] [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: 09/13/2023] [Revised: 11/03/2023] [Accepted: 11/06/2023] [Indexed: 11/26/2023] Open
Abstract
The interaction between integrin α4β7 and mucosal vascular addressin cell-adhesion molecule-1 (MAdCAM-1) facilitates the adhesion of circulating lymphocytes to the surface of high endothelial venules in inflammatory bowel diseases (IBDs). Lymphocyte adhesion is a multistep cascade involving the tethering, rolling, stable adhesion, crawling, and migration of cells, with integrin α4β7 being involved in rolling and stable adhesions. Targeting the integrin α4β7-MAdCAM-1 interaction may help decrease inflammation in IBDs. This interaction is regulated by force; however, the underlying mechanism remains unknown. Here, we investigate this mechanism using a parallel plate flow chamber and atomic force microscopy. The results reveal an initial increase in the lifetime of the integrin α4β7-MAdCAM-1 interaction followed by a decrease with an increasing force. This was manifested in a two-state curve regulated via a catch-bond-slip-bond conversion regardless of Ca2+ and/or Mg2+ availability. In contrast, the mean rolling velocity of cells initially decreased and then increased with the increasing force, indicating the flow-enhanced adhesion. Longer tether lifetimes of single bonds and lower rolling velocities mediated by multiple bonds were observed in the presence of Mg2+ rather than Ca2+. Similar results were obtained when examining the adhesion to substrates co-coated with chemokine CC motif ligand 25 and MAdCAM-1, as opposed to substrates coated with MAdCAM-1 alone. In conclusion, the integrin α4β7-MAdCAM-1 interaction occurs via ion- and cytokine-dependent flow-enhanced adhesion processes and is regulated via a catch-bond mechanism.
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Affiliation(s)
- Youmin Su
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, China; (Y.S.); (Z.L.); (D.S.)
- Guangdong Provincial Engineering and Technology Research Center of Biopharmaceuticals, South China University of Technology, Guangzhou 510006, China
| | - Zhiqing Luo
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, China; (Y.S.); (Z.L.); (D.S.)
| | - Dongshan Sun
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, China; (Y.S.); (Z.L.); (D.S.)
| | - Bishan Yang
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, China; (Y.S.); (Z.L.); (D.S.)
| | - Quhuan Li
- School of Bioscience and Bioengineering, South China University of Technology, Guangzhou 510006, China; (Y.S.); (Z.L.); (D.S.)
- Guangdong Provincial Engineering and Technology Research Center of Biopharmaceuticals, South China University of Technology, Guangzhou 510006, China
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19
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Dong J, Ruan W, Duan X. Molecular-based phenotype variations in amelogenesis imperfecta. Oral Dis 2023; 29:2334-2365. [PMID: 37154292 DOI: 10.1111/odi.14599] [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: 09/22/2022] [Revised: 04/03/2023] [Accepted: 04/15/2023] [Indexed: 05/10/2023]
Abstract
Amelogenesis imperfecta (AI) is one of the typical dental genetic diseases in human. It can occur isolatedly or as part of a syndrome. Previous reports have mainly clarified the types and mechanisms of nonsyndromic AI. This review aimed to compare the phenotypic differences among the hereditary enamel defects with or without syndromes and their underlying pathogenic genes. We searched the articles in PubMed with different strategies or keywords including but not limited to amelogenesis imperfecta, enamel defects, hypoplastic/hypomaturation/hypocalcified, syndrome, or specific syndrome name. The articles with detailed clinical information about the enamel and other phenotypes and clear genetic background were used for the analysis. We totally summarized and compared enamel phenotypes of 18 nonsyndromic AI with 17 causative genes and 19 syndromic AI with 26 causative genes. According to the clinical features, radiographic or ultrastructural changes in enamel, the enamel defects were basically divided into hypoplastic and hypomineralized (hypomaturated and hypocalcified) and presented a higher heterogeneity which were closely related to the involved pathogenic genes, types of mutation, hereditary pattern, X chromosome inactivation, incomplete penetrance, and other mechanisms.The gene-specific enamel phenotypes could be an important indicator for diagnosing nonsyndromic and syndromic AI.
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Affiliation(s)
- Jing Dong
- State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Oral Biology & Clinic of Oral Rare Diseases and Genetic Diseases, School of Stomatology, National Clinical Research Center for Oral Disease, The Fourth Military Medical University, Xi'an, China
- College of Life Sciences, Northwest University, Xi'an, China
| | - Wenyan Ruan
- State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Oral Biology & Clinic of Oral Rare Diseases and Genetic Diseases, School of Stomatology, National Clinical Research Center for Oral Disease, The Fourth Military Medical University, Xi'an, China
| | - Xiaohong Duan
- State Key Laboratory of Military Stomatology, Shaanxi Key Laboratory of Stomatology, Department of Oral Biology & Clinic of Oral Rare Diseases and Genetic Diseases, School of Stomatology, National Clinical Research Center for Oral Disease, The Fourth Military Medical University, Xi'an, China
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20
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Timilsina S, McCandliss KF, Trivedi E, Villa-Diaz LG. Enhanced Expansion of Human Pluripotent Stem Cells and Somatic Cell Reprogramming Using Defined and Xeno-Free Culture Conditions. Bioengineering (Basel) 2023; 10:999. [PMID: 37760101 PMCID: PMC10525589 DOI: 10.3390/bioengineering10090999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/07/2023] [Accepted: 08/14/2023] [Indexed: 09/29/2023] Open
Abstract
Human embryonic stem cells and induced pluripotent stem cells (hPSC) have an unprecedented opportunity to revolutionize the fields of developmental biology as well as tissue engineering and regenerative medicine. However, their applications have been significantly limited by the lack of chemically defined and xeno-free culture conditions. The demand for the high-quality and scaled-up production of cells for use in both research and clinical studies underscores the need to develop tools that will simplify the in vitro culture process while reducing the variables. Here, we describe a systematic study to identify the optimal conditions for the initial cell attachment of hPSC to tissue culture dishes grafted with polymers of N-(3-Sulfopropyl)-N-Methacryloxyethyl-N, N-Dimethylammoniun Betaine (PMEDSAH) in combination with chemically defined and xeno-free culture media. After testing multiple supplements and chemicals, we identified that pre-conditioning of PMEDSAH grafted plates with 10% human serum (HS) supported the initial cell attachment, which allowed for the long-term culture and maintenance of hPSC compared to cells cultured on Matrigel-coated plates. Using this culture condition, a 2.1-fold increase in the expansion of hPSC was observed without chromosomal abnormalities. Furthermore, this culture condition supported a higher reprogramming efficiency (0.37% vs. 0.22%; p < 0.0068) of somatic cells into induced pluripotent stem cells compared to the non-defined culture conditions. This defined and xeno-free hPSC culture condition may be used in obtaining the large populations of hPSC and patient-derived iPSC required for many applications in regenerative and translational medicine.
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Affiliation(s)
- Suraj Timilsina
- Department of Biomarkers and Investigative Pathology Unit (BIPU), Charles River Laboratories, Mattawan, MI 49071, USA;
| | | | - Evan Trivedi
- Department of Chemistry, Oakland University, Rochester, MI 48309, USA;
| | - Luis G. Villa-Diaz
- Department of Biological Sciences, Oakland University, Rochester, MI 48309, USA;
- Department of Bioengineering, Oakland University, Rochester, MI 48309, USA
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21
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Yoshida H, Shiokawa M, Kuwada T, Muramoto Y, Ota S, Nishikawa Y, Maeda H, Kakiuchi N, Okamoto K, Yamazaki H, Yokode M, Nakamura T, Matsumoto S, Hirano T, Okada H, Marui S, Sogabe Y, Matsumori T, Mima A, Uza N, Eso Y, Takai A, Takahashi K, Ueda Y, Kodama Y, Chiba T, Seno H. Anti-integrin αvβ6 autoantibodies in patients with primary sclerosing cholangitis. J Gastroenterol 2023; 58:778-789. [PMID: 37310456 PMCID: PMC10366314 DOI: 10.1007/s00535-023-02006-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/11/2023] [Accepted: 05/31/2023] [Indexed: 06/14/2023]
Abstract
BACKGROUND Patients with primary sclerosing cholangitis (PSC) possess autoantibodies against biliary epithelial cells. However, the target molecules remain unknown. METHODS The sera of patients with PSC and controls were subjected to enzyme-linked immunosorbent assays to detect autoantibodies using recombinant integrin proteins. Integrin αvβ6 expression in the bile duct tissues was examined using immunofluorescence. The blocking activity of the autoantibodies was examined using solid-phase binding assays. RESULTS Anti-integrin αvβ6 antibodies were detected in 49/55 (89.1%) patients with PSC and 5/150 (3.3%) controls (P < 0.001), with a sensitivity and specificity of 89.1% and 96.7%, respectively, for PSC diagnosis. When focusing on the presence or absence of IBD, the proportion of the positive antibodies in PSC with IBD was 97.2% (35/36) and that in PSC alone was 73.7% (14/19) (P = 0.008). Integrin αvβ6 was expressed in bile duct epithelial cells. Immunoglobulin (Ig)G from 15/33 patients with PSC blocked integrin αvβ6-fibronectin binding through an RGD (Arg-Gly-Asp) tripeptide motif. CONCLUSIONS Autoantibodies against integrin αvβ6 were detected in most patients with PSC; anti-integrin αvβ6 antibody may serve as a potential diagnostic biomarker for PSC.
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Affiliation(s)
- Hiroyuki Yoshida
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Masahiro Shiokawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan.
| | - Takeshi Kuwada
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuya Muramoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Sakiko Ota
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshihiro Nishikawa
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hirona Maeda
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan
| | - Nobuyuki Kakiuchi
- Department of Pathology and Tumor Biology, Kyoto University, Kyoto, Japan
| | - Kanako Okamoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hajime Yamazaki
- Section of Clinical Epidemiology, Department of Community Medicine, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Masataka Yokode
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Takeharu Nakamura
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Shimpei Matsumoto
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomonori Hirano
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Hirokazu Okada
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Saiko Marui
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuko Sogabe
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Tomoaki Matsumori
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Atsushi Mima
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Norimitsu Uza
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yuji Eso
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Atsushi Takai
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Ken Takahashi
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - Yoshihide Ueda
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Yuzo Kodama
- Division of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Hyogo, Japan
| | - Tsutomu Chiba
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
- Kansai Electric Power Hospital, Osaka, Japan
| | - Hiroshi Seno
- Department of Gastroenterology and Hepatology, Kyoto University Graduate School of Medicine, Kyoto, Japan
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22
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Janus-Bell E, Mangin PH. The relative importance of platelet integrins in hemostasis, thrombosis and beyond. Haematologica 2023; 108:1734-1747. [PMID: 36700400 PMCID: PMC10316258 DOI: 10.3324/haematol.2022.282136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 01/09/2023] [Indexed: 01/27/2023] Open
Abstract
Integrins are heterodimeric transmembrane receptors composed of α and β chains, with an N-terminal extracellular domain forming a globular head corresponding to the ligand binding site. Integrins regulate various cellular functions including adhesion, migration, proliferation, spreading and apoptosis. On platelets, integrins play a central role in adhesion and aggregation on subendothelial matrix proteins of the vascular wall, thereby ensuring hemostasis. Platelet integrins belong either to the β1 family (α2β1, α5β1 and α6β1) or to the β3 family (αIIbβ3 and αvβ3). On resting platelets, integrins can engage their ligands when the latter are immobilized but not in their soluble form. The effects of various agonists promote an inside-out signal in platelets, increasing the affinity of integrins for their ligands and conveying a modest signal reinforcing platelet activation, called outside-in signaling. This outside-in signal ensures platelet adhesion, shape change, granule secretion and aggregation. In this review, we examine the role of each platelet integrin in hemostatic plug formation, hemostasis and arterial thrombosis and also beyond these classical functions, notably in tumor metastasis and sepsis.
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Affiliation(s)
- Emily Janus-Bell
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, F-67065 Strasbourg.
| | - Pierre H Mangin
- Université de Strasbourg, INSERM, EFS Grand-Est, BPPS UMR-S1255, FMTS, F-67065 Strasbourg
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23
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Salardani M, Barcick U, Zelanis A. Proteolytic signaling in cancer. Expert Rev Proteomics 2023; 20:345-355. [PMID: 37873978 DOI: 10.1080/14789450.2023.2275671] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 10/17/2023] [Indexed: 10/25/2023]
Abstract
INTRODUCTION Cancer is a disease of (altered) biological pathways, often driven by somatic mutations and with several implications. Therefore, the identification of potential markers of disease is challenging. Given the large amount of biological data generated with omics approaches, oncology has experienced significant contributions. Proteomics mapping of protein fragments, derived from proteolytic processing events during oncogenesis, may shed light on (i) the role of active proteases and (ii) the functional implications of processed substrates in biological signaling circuits. Both outcomes have the potential for predicting diagnosis/prognosis in diseases like cancer. Therefore, understanding proteolytic processing events and their downstream implications may contribute to advances in the understanding of tumor biology and targeted therapies in precision medicine. AREAS COVERED Proteolytic events associated with some hallmarks of cancer (cell migration and proliferation, angiogenesis, metastasis, as well as extracellular matrix degradation) will be discussed. Moreover, biomarker discovery and the use of proteomics approaches to uncover proteolytic signaling events will also be covered. EXPERT OPINION Proteolytic processing is an irreversible protein post-translational modification and the deconvolution of biological data resulting from the study of proteolytic signaling events may be used in both patient diagnosis/prognosis and targeted therapies in cancer.
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Affiliation(s)
- Murilo Salardani
- Functional Proteomics Laboratory, Institute of Science and Technology, Federal University of São Paulo, São José dos Campos, SP, Brazil
| | - Uilla Barcick
- Functional Proteomics Laboratory, Institute of Science and Technology, Federal University of São Paulo, São José dos Campos, SP, Brazil
| | - André Zelanis
- Functional Proteomics Laboratory, Institute of Science and Technology, Federal University of São Paulo, São José dos Campos, SP, Brazil
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24
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Yamashita M. Integrin-mediated electric axon guidance underlying optic nerve formation in the embryonic chick retina. Commun Biol 2023; 6:680. [PMID: 37391492 PMCID: PMC10313674 DOI: 10.1038/s42003-023-05056-x] [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: 09/08/2022] [Accepted: 06/20/2023] [Indexed: 07/02/2023] Open
Abstract
Retinal ganglion cell (RGC) axons converge on the optic disc to form an optic nerve. However, the mechanism of RGC axon convergence remains elusive. In the embryonic retina, an electric field (EF) exists and this EF converges on the future optic disc. EFs have been demonstrated in vitro to orient axons toward the cathode. Here, I show that the EF directs RGC axons through integrin in an extracellular Ca2+-dependent manner. The cathodal growth of embryonic chick RGC axons, which express integrin α6β1, was enhanced by monoclonal anti-chicken integrin β1 antibodies. Mn2+ abolished these EF effects, as Mn2+ occupies the Ca2+-dependent negative regulatory site in the β1 subunit to eliminate Ca2+ inhibition. The present study proposes an integrin-mediated electric axon steering model, which involves directional Ca2+ movements and asymmetric microtubule stabilization. Since neuroepithelial cells generate EFs during neurogenesis, electric axon guidance may primarily be used in central nervous system development.
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25
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Huang M, Lu L, Lin C, Zheng Y, Pan X, Wang S, Chen S, Zhang Y, Liu C, Ge G, Zeng YA, Chen J. LRP12 is an endogenous transmembrane inactivator of α4 integrins. Cell Rep 2023; 42:112667. [PMID: 37330909 DOI: 10.1016/j.celrep.2023.112667] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Revised: 04/26/2023] [Accepted: 06/02/2023] [Indexed: 06/20/2023] Open
Abstract
Dynamic regulation of integrin activation and inactivation is critical for precisely controlled cell adhesion and migration in physiological and pathological processes. The molecular basis for integrin activation has been intensively studied; however, the understanding of integrin inactivation is still limited. Here, we identify LRP12 as an endogenous transmembrane inhibitor for α4 integrin activation. The LRP12 cytoplasmic domain directly binds to the integrin α4 cytoplasmic tail and inhibits talin binding to the β subunit, thus keeping integrin inactive. In migrating cells, LRP12-α4 interaction induces nascent adhesion (NA) turnover at the leading-edge protrusion. Knockdown of LRP12 leads to increased NAs and enhanced cell migration. Consistently, LRP12-deficient T cells show an enhanced homing capability in mice and lead to aggravated chronic colitis in a T cell-transfer colitis model. Altogether, LRP12 is a transmembrane inactivator for integrins that inhibits α4 integrin activation and controls cell migration by maintaining balanced NA dynamics.
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Affiliation(s)
- MengWen Huang
- State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China; Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - Ling Lu
- Department of Pathology, Shanghai Tenth People's Hospital Affiliated to Tongji University, Shanghai 200072, China
| | - ChangDong Lin
- Fundamental Research Center, Shanghai YangZhi Rehabilitation Hospital (Shanghai Sunshine Rehabilitation Center), School of Life Sciences and Technology, Tongji University, Shanghai 200092, China; Frontier Science Center for Stem Cell Research, Tongji University, Shanghai 200092, China
| | - YaJuan Zheng
- State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - XingChao Pan
- State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - ShiHui Wang
- State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - ShiYang Chen
- Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - YouHua Zhang
- Department of Pathology, Shanghai Tenth People's Hospital Affiliated to Tongji University, Shanghai 200072, China
| | - ChunYe Liu
- State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China; Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - GaoXiang Ge
- State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China
| | - Yi Arial Zeng
- State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China; Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China
| | - JianFeng Chen
- State Key Laboratory of Cell Biology, Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China; Key Laboratory of Systems Health Science of Zhejiang Province, School of Life Science, Hangzhou Institute for Advanced Study, University of Chinese Academy of Sciences, Hangzhou 310024, China.
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26
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Mazmanian K, Grauffel C, Dudev T, Lim C. Protein Ca 2+-Sites Prone to Sr 2+ Substitution: Implications for Strontium Therapy. J Phys Chem B 2023. [PMID: 37327495 DOI: 10.1021/acs.jpcb.3c01637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Strontium (Sr), an alkali metal with properties similar to calcium, in the form of soluble salts is used to treat osteoporosis. Despite the information accumulated on the role of Sr2+ as a Ca2+ mimetic in biology and medicine, there is no systematic study of how the outcome of the competition between the two dications depends on the physicochemical properties of (i) the metal ions, (ii) the first- and second-shell ligands, and (iii) the protein matrix. Specifically, the key features of a Ca2+-binding protein that enable Sr2+ to displace Ca2+ remain unclear. To address this, we studied the competition between Ca2+ and Sr2+ in protein Ca2+-binding sites using density functional theory combined with the polarizable continuum model. Our findings indicate that Ca2+-sites with multiple strong charge-donating protein ligands, including one or more bidentately bound Asp-/Glu- that are relatively buried and rigid are protected against Sr2+ attack. On the other hand, Ca2+-sites crowded with multiple protein ligands may be prone to Sr2+ displacement if they are solvent-exposed and flexible enough so that an extra backbone ligand from the outer shell can bind to Sr2+. In addition, solvent-exposed Ca2+ sites with only a few weak charge-donating ligands that can rearrange to fit the strontium's coordination requirements are susceptible to Sr2+ displacement. We provide the physical basis of these results and discuss potential novel protein targets of therapeutic Sr2+.
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Affiliation(s)
- Karine Mazmanian
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Cédric Grauffel
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
| | - Todor Dudev
- Faculty of Chemistry and Pharmacy, Sofia University, Sofia 1164, Bulgaria
| | - Carmay Lim
- Institute of Biomedical Sciences, Academia Sinica, Taipei 115, Taiwan
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27
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Cha M, Jeong SH, Jung J, Baeg Y, Park S, Bae S, Lim CS, Park JH, Lee J, Gho YS, Oh SW, Shon MJ. Quantitative imaging of vesicle-protein interactions reveals close cooperation among proteins. J Extracell Vesicles 2023; 12:e12322. [PMID: 37186457 PMCID: PMC10130417 DOI: 10.1002/jev2.12322] [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: 10/12/2022] [Accepted: 03/28/2023] [Indexed: 05/17/2023] Open
Abstract
Membrane-bound vesicles such as extracellular vesicles (EVs) can function as biochemical effectors on target cells. Docking of the vesicles onto recipient plasma membranes depends on their interaction with cell-surface proteins, but a generalizable technique that can quantitatively observe these vesicle-protein interactions (VPIs) is lacking. Here, we describe a fluorescence microscopy that measures VPIs between single vesicles and cell-surface proteins, either in a surface-tethered or in a membrane-embedded state. By employing cell-derived vesicles (CDVs) and intercellular adhesion molecule-1 (ICAM-1) as a model system, we found that integrin-driven VPIs exhibit distinct modes of affinity depending on vesicle origin. Controlling the surface density of proteins also revealed a strong support from a tetraspanin protein CD9, with a critical dependence on molecular proximity. An adsorption model accounting for multiple protein molecules was developed and captured the features of density-dependent cooperativity. We expect that VPI imaging will be a useful tool to dissect the molecular mechanisms of vesicle adhesion and uptake, and to guide the development of therapeutic vesicles.
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Affiliation(s)
- Minkwon Cha
- Department of PhysicsPohang University of Science and Technology (POSTECH)PohangRepublic of Korea
- POSTECH Biotech CenterPohang University of Science and Technology (POSTECH)PohangRepublic of Korea
| | - Sang Hyeok Jeong
- Department of PhysicsPohang University of Science and Technology (POSTECH)PohangRepublic of Korea
| | - Jaehun Jung
- Department of PhysicsPohang University of Science and Technology (POSTECH)PohangRepublic of Korea
| | - Yoonjin Baeg
- Biodrone Research InstituteMDimune Inc.SeoulRepublic of Korea
| | - Sung‐Soo Park
- Biodrone Research InstituteMDimune Inc.SeoulRepublic of Korea
| | - Seoyoon Bae
- Department of Life SciencesPohang University of Science and Technology (POSTECH)PohangRepublic of Korea
| | - Chan Seok Lim
- Department of Life SciencesPohang University of Science and Technology (POSTECH)PohangRepublic of Korea
| | - Jun Hyuk Park
- Department of PhysicsPohang University of Science and Technology (POSTECH)PohangRepublic of Korea
| | - Jie‐Oh Lee
- Department of Life SciencesPohang University of Science and Technology (POSTECH)PohangRepublic of Korea
- Institute of Membrane ProteinsPohang University of Science and Technology (POSTECH)PohangRepublic of Korea
| | - Yong Song Gho
- Department of Life SciencesPohang University of Science and Technology (POSTECH)PohangRepublic of Korea
| | - Seung Wook Oh
- Biodrone Research InstituteMDimune Inc.SeoulRepublic of Korea
| | - Min Ju Shon
- Department of PhysicsPohang University of Science and Technology (POSTECH)PohangRepublic of Korea
- School of Interdisciplinary Bioscience and BioengineeringPohang University of Science and Technology (POSTECH)PohangRepublic of Korea
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28
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Vaitaitis GM, Wagner DH. Modulating CD40 and integrin signaling in the proinflammatory nexus using a 15-amino-acid peptide, KGYY 15. J Biol Chem 2023; 299:104625. [PMID: 36944397 PMCID: PMC10141526 DOI: 10.1016/j.jbc.2023.104625] [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: 02/17/2023] [Revised: 03/14/2023] [Accepted: 03/15/2023] [Indexed: 03/22/2023] Open
Abstract
CD40 signaling has long been a target in autoimmunity. Attempts to block signaling between CD40 and CD154 during clinical trials using monoclonal antibodies suffered severe adverse events. Previously, we developed a peptide, KGYY15, that targets CD40 and, in preclinical trials, prevents type 1 diabetes in >90% of cases and reverses new-onset hyperglycemia in 56% of cases. It did so by establishing normal effector T-cell levels rather than ablating the cells and causing immunosuppression. However, the relationship between KGYY15 and other elements of the complex signaling network of CD40 is not clear. Studying interactions between proteins from autoimmune and nonautoimmune mice, we demonstrate interactions between CD40 and integrin CD11a/CD18, which complicates the understanding of the inflammatory nexus and how to prevent autoinflammation. In addition to interacting with CD40, KGYY15 interacts with the integrins CD11a/CD18 and CD11b/CD18. We argue that modulation of CD40-CD154 signaling may be more advantageous than complete inhibition because it may preserve normal immunity to pathogens.
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Affiliation(s)
- Gisela M Vaitaitis
- Webb-Waring Center, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - David H Wagner
- Webb-Waring Center, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA.
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29
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Li K, Liu S, Li J, Yi D, Shao D, Hu T, Zheng X. Manganese supplementation of orthopedic implants: a new strategy for enhancing integrin-mediated cellular responses. Biomater Sci 2023; 11:3893-3905. [PMID: 37083965 DOI: 10.1039/d2bm02165j] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/22/2023]
Abstract
Integrin-mediated osteoblast adhesion to adsorbed extracellular ligands on orthopedic implants is crucial for the subsequent osteoblast behaviors and ultimate osseointegration. Considerable research efforts have focused on the development of implant surfaces that promote the adsorption of extracellular ligands, but ignored the fact that integrin binding to ligands requires divalent cations (such as Mn2+). Here, three kinds of Mn-doped nanowire-structured TiO2 coatings with 1.9, 3.9, and 8.8 wt% dopant contents (Mn1-, Mn2-, and Mn3-TiO2) were synthesized on Ti implants to enhance integrin-mediated osteoblastic responses. The Mg-doped and undoped TiO2 nanocoatings served as the control. Mn element was not only successfully incorporated into the TiO2 matrix, but also formed an oxygen-deficient Mn oxide on the nanowire surface. Although the adsorbed fibronectin (Fn) amount on Mn-doped nanocoatings and its unfolded status were slightly attenuated with increasing Mn amount, the interaction between the coating extract and Fn demonstrated a Mn2+-induced unfolding of Fn with the exposure of the RGD motif. Compared to the Mn1-, Mn2- and Mg-doped TiO2 nanocoatings, the Mn3-TiO2 nanocoating significantly upregulated the expression of integrin α5β1 probably through increasing the ligand-binding affinity of the integrin rather than integrin binding sites in Fn. Consistent with the activation trend of integrin α5β1, the Mn3-TiO2 nanocoating enhanced cell adhesion with the long stretched structure of actin fibers and extensive formation of vinculin focal adhesion spots and upregulated the levels of alkaline phosphatase and osteocalcin activities. Therefore, Mn supplementation of orthopedic implants may be a promising way to improve osteogenesis at the implant surface.
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Affiliation(s)
- Kai Li
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Shiwei Liu
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Jieping Li
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Deliang Yi
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.
| | - Dandan Shao
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
| | - Tao Hu
- Department of Spine Surgery, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Xuebin Zheng
- Key Laboratory of Inorganic Coating Materials CAS, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, China.
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
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The Kingella kingae PilC1 MIDAS Motif Is Essential for Type IV Pilus Adhesive Activity and Twitching Motility. Infect Immun 2023; 91:e0033822. [PMID: 36537792 PMCID: PMC9872652 DOI: 10.1128/iai.00338-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
Kingella kingae is an emerging pathogen that has recently been identified as a leading cause of osteoarticular infections in young children. Colonization with K. kingae is common, with approximately 10% of young children carrying this organism in the oropharynx at any given time. Adherence to epithelial cells represents the first step in K. kingae colonization of the oropharynx, a prerequisite for invasive disease. Type IV pili and the pilus-associated PilC1 and PilC2 proteins have been shown to mediate K. kingae adherence to epithelial cells, but the molecular mechanism of this adhesion has remained unknown. Metal ion-dependent adhesion site (MIDAS) motifs are commonly found in integrins, where they function to promote an adhesive interaction with a ligand. In this study, we identified a potential MIDAS motif in K. kingae PilC1 which we hypothesized was directly involved in mediating type IV pilus adhesive interactions. We found that the K. kingae PilC1 MIDAS motif was required for bacterial adherence to epithelial cell monolayers and extracellular matrix proteins and for twitching motility. Our results demonstrate that K. kingae has co-opted a eukaryotic adhesive motif for promoting adherence to host structures and facilitating colonization.
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Schüler SC, Liu Y, Dumontier S, Grandbois M, Le Moal E, Cornelison DDW, Bentzinger CF. Extracellular matrix: Brick and mortar in the skeletal muscle stem cell niche. Front Cell Dev Biol 2022; 10:1056523. [PMID: 36523505 PMCID: PMC9745096 DOI: 10.3389/fcell.2022.1056523] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/03/2022] [Indexed: 11/30/2022] Open
Abstract
The extracellular matrix (ECM) is an interconnected macromolecular scaffold occupying the space between cells. Amongst other functions, the ECM provides structural support to tissues and serves as a microenvironmental niche that conveys regulatory signals to cells. Cell-matrix adhesions, which link the ECM to the cytoskeleton, are dynamic multi-protein complexes containing surface receptors and intracellular effectors that control various downstream pathways. In skeletal muscle, the most abundant tissue of the body, each individual muscle fiber and its associated muscle stem cells (MuSCs) are surrounded by a layer of ECM referred to as the basal lamina. The core scaffold of the basal lamina consists of self-assembling polymeric laminins and a network of collagens that tether proteoglycans, which provide lateral crosslinking, establish collateral associations with cell surface receptors, and serve as a sink and reservoir for growth factors. Skeletal muscle also contains the fibrillar collagenous interstitial ECM that plays an important role in determining tissue elasticity, connects the basal laminae to each other, and contains matrix secreting mesenchymal fibroblast-like cell types and blood vessels. During skeletal muscle regeneration fibroblast-like cell populations expand and contribute to the transitional fibronectin-rich regenerative matrix that instructs angiogenesis and MuSC function. Here, we provide a comprehensive overview of the role of the skeletal muscle ECM in health and disease and outline its role in orchestrating tissue regeneration and MuSC function.
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Affiliation(s)
- Svenja C. Schüler
- Département de Pharmacologie-Physiologie, Faculté de Médecine et des Sciences de la Santé, Institut de Pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Yuguo Liu
- Département de Pharmacologie-Physiologie, Faculté de Médecine et des Sciences de la Santé, Institut de Pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Simon Dumontier
- Département de Pharmacologie-Physiologie, Faculté de Médecine et des Sciences de la Santé, Institut de Pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Michel Grandbois
- Département de Pharmacologie-Physiologie, Faculté de Médecine et des Sciences de la Santé, Institut de Pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Emmeran Le Moal
- Département de Pharmacologie-Physiologie, Faculté de Médecine et des Sciences de la Santé, Institut de Pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - DDW Cornelison
- Division of Biological Sciences Christopher S. Bond Life Sciences Center, University of Missouri, Columbia, MO, United States
| | - C. Florian Bentzinger
- Département de Pharmacologie-Physiologie, Faculté de Médecine et des Sciences de la Santé, Institut de Pharmacologie de Sherbrooke, Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Université de Sherbrooke, Sherbrooke, QC, Canada
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Roberts E, Xu T, Assoian RK. Cell contractility and focal adhesion kinase control circumferential arterial stiffness. VASCULAR BIOLOGY (BRISTOL, ENGLAND) 2022; 4:28-39. [PMID: 36222505 PMCID: PMC9782408 DOI: 10.1530/vb-22-0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Accepted: 10/12/2022] [Indexed: 11/07/2022]
Abstract
Arterial stiffening is a hallmark of aging and cardiovascular disease. While it is well established that vascular smooth muscle cells (SMCs) contribute to arterial stiffness by synthesizing and remodeling the arterial extracellular matrix, the direct contributions of SMC contractility and mechanosensors to arterial stiffness, and particularly the arterial response to pressure, remain less well understood despite being a long-standing question of biomedical importance. Here, we have examined this issue by combining the use of pressure myography of intact carotid arteries, pharmacologic inhibition of contractility, and genetic deletion of SMC focal adhesion kinase (FAK). Biaxial inflation-extension tests performed at physiological pressures showed that acute inhibition of cell contractility with blebbistatin or EGTA altered vessel geometry and preferentially reduced circumferential, as opposed to axial, arterial stiffness in wild-type mice. Similarly, genetic deletion of SMC FAK, which attenuated arterial contraction to KCl, reduced vessel wall thickness and circumferential arterial stiffness in response to pressure while having minimal effect on axial mechanics. Moreover, these effects of FAK deletion were lost by treating arteries with blebbistatin or by inhibiting myosin light-chain kinase. The expression of arterial fibrillar collagens, the integrity of arterial elastin, or markers of SMC differentiation were not affected by the deletion of SMC FAK. Our results connect cell contractility and SMC FAK to the regulation of arterial wall thickness and directionally specific arterial stiffening.
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Affiliation(s)
- Emilia Roberts
- Department of Systems Pharmacology and Translational Therapeutics, Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Tina Xu
- Department of Systems Pharmacology and Translational Therapeutics, Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Richard K Assoian
- Department of Systems Pharmacology and Translational Therapeutics, Institute for Translational Medicine and Therapeutics, University of Pennsylvania, Philadelphia, Pennsylvania, USA
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Solubilization and Purification of α 5β 1 Integrin from Rat Liver for Reconstitution into Nanodiscs. METHODS IN MOLECULAR BIOLOGY (CLIFTON, N.J.) 2022; 2507:1-18. [PMID: 35773574 DOI: 10.1007/978-1-0716-2368-8_1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Transmembrane proteins (or integral membrane proteins) are synthesized in the endoplasmic reticulum where most of them are core glycosylated prior to folding and in some cases assembly into quaternary structures. Correctly glycosylated, folded, and assembled transmembrane proteins are then shuttled to the Golgi apparatus for additional posttranslational modifications such as complex-type glycosylations, sulfation or proteolytic clipping. At the plasma membrane, the glycosylated extracellular domains are key to communicate with the cellular environment for a variety of functions, such as binding to the extracellular matrix for cell adhesion and migration, to neighboring cells for cell-cell interaction, or to extracellular components for nutrient uptake and cell signaling. Intracellular domains are essential to mediate signaling cascades, or to connect to cytosolic adaptors for internalization and intracellular compartmentalization. Despite its importance for the understanding of molecular mechanisms of transmembrane protein function, the determination of their structures has remained a challenging task. In recent years, their reconstitution in lipid nanodiscs in combination with high resolution cryo-electron microscopy has provided novel avenues to render this process more accessible. Here, we describe detailed protocols for the solubilization of heavily glycosylated α5β1 integrin from rat livers, its purification and reconstitution into nanodiscs. At the plasma membrane of many cells, including tumor metastases, this essential heterodimeric transmembrane protein mediates the communication between extracellular matrix and cytosolic cytoskeleton in processes of cell adhesion and migration. We expect that the protocols that are described here will provide new opportunities for the determination of the full structure of α5β1 integrin, as well as for the understanding of how interacting partners can regulate function and activity of this transmembrane protein.
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Nkandeu DS, Basson C, Joubert AM, Serem JC, Bipath P, Nyakudya T, Hlophe Y. The involvement of a chemokine receptor antagonist CTCE-9908 and kynurenine metabolites in cancer development. Cell Biochem Funct 2022; 40:608-622. [PMID: 35789495 DOI: 10.1002/cbf.3731] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 06/22/2022] [Indexed: 11/06/2022]
Abstract
Cancer is the second leading cause of mortality worldwide. Skin cancer is the most common cancer in South Africa with nearly 20,000 reported cases every year and 700 deaths. If diagnosed early, the 5-year survival rate is about 90%, however, when diagnosed late, the 5-year survival rate decreases to about 20%. Melanoma is a type of skin cancer with an estimated 5-year survival rate of approximately 90%. Neuroblastoma is a paediatric cancer with a low survival rate. Sixty percent of patients with metastatic disease do not survive 5 years after diagnosis. Despite recent advances in targeted therapies, there is a crucial need to identify reliable prognostic biomarkers which will be able to contribute to the development of more precision-based chemotherapeutic strategies to prevent tumour migration and metastasis. The compound, CTCE-9908 inhibits the binding of CXC chemokine ligand 12 (CXCL12) to the CXC chemokine receptor 4 (CXCR4) receptor leading to reduced metastasis. Kynurenine metabolites are derived tryptophan, which is an essential amino acid. Kynurenine metabolites inhibit T-cell proliferation resulting in cell growth arrest. For this reason, chemokines receptors represent potential targets for the treatment of cancer growth and metastasis. In this review paper, the role of the CXCL12/CXCR4 signalling pathway in the development of cancer is highlighted together with the current available treatments involving the CTCE-9908 compound in combination with microtubule inhibitors like paclitaxel and docetaxel.
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Affiliation(s)
- Danielle Sandra Nkandeu
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Charlize Basson
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Anna Margaretha Joubert
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - June Cheptoo Serem
- Department of Anatomy, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Priyesh Bipath
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Trevor Nyakudya
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
| | - Yvette Hlophe
- Department of Physiology, Faculty of Health Sciences, University of Pretoria, Pretoria, South Africa
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Caliandro MF, Schmalbein F, Todesca LM, Mörgelin M, Rezaei M, Meißner J, Siepe I, Grosche J, Schwab A, Eble JA. A redox-dependent thiol-switch and a Ca 2+ binding site within the hinge region hierarchically depend on each other in α7β1 integrin regulation. Free Radic Biol Med 2022; 187:38-49. [PMID: 35605898 DOI: 10.1016/j.freeradbiomed.2022.05.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 05/17/2022] [Indexed: 11/23/2022]
Abstract
Integrin-mediated cell contacts with the extracellular matrix (ECM) are essential for cellular adhesion, force transmission, and migration. Several effectors, such as divalent cations and redox-active compounds, regulate ligand binding activities of integrins and influence their cellular functions. To study the role of the Ca2+ binding site within the hinge region of the integrin α7 subunit, we genetically abrogated it in the α7hiΔCa mutant. This mutant folded correctly, associated with the β1 subunit and was exposed on the cell surface, but showed reduced ligand binding and weaker cell adhesion to laminin-111. Thus, it resembles the α7hiΔSS mutant, in which the redox-regulated pair of cysteines, closeby to the Ca2+ binding site within the hinge, was abrogated. Comparing both mutants in adhesion strength and cell migration revealed that both Ca2+ complexation and redox-regulation within the hinge interdepend on each other. Moreover, protein-chemical analyses of soluble integrin ectodomains containing the same α7 hinge mutations suggest that integrin activation via the subunit α hinge is primed by the formation of the cysteine pair-based crosslinkage. Then, this allows Ca2+ complexation within the hinge, which is another essential step for integrin activation and ligand binding. Thus, the α hinge is an allosteric integrin regulation site, in which both effectors, Ca2+ and redox-active compounds, synergistically and hierarchically induce far-ranging conformational changes, such as the extension of the integrin ectodomain, resulting in integrin activation of ECM ligand binding and altered integrin-mediated cell functions.
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Affiliation(s)
- Michele F Caliandro
- University of Münster, Institute of Physiological Chemistry and Pathobiochemistry, Waldeyerstr. 15, 48149, Münster, Germany
| | - Felix Schmalbein
- University of Münster, Institute of Physiological Chemistry and Pathobiochemistry, Waldeyerstr. 15, 48149, Münster, Germany
| | - Luca Matteo Todesca
- University of Münster, Institute of Physiology II, Robert-Koch-Str. 27b, 48149, Münster, Germany
| | | | - Maryam Rezaei
- University of Münster, Institute of Physiological Chemistry and Pathobiochemistry, Waldeyerstr. 15, 48149, Münster, Germany
| | - Juliane Meißner
- University of Münster, Institute of Physiological Chemistry and Pathobiochemistry, Waldeyerstr. 15, 48149, Münster, Germany
| | - Isabel Siepe
- University of Münster, Institute of Physiological Chemistry and Pathobiochemistry, Waldeyerstr. 15, 48149, Münster, Germany
| | - Julius Grosche
- University of Münster, Institute of Physiological Chemistry and Pathobiochemistry, Waldeyerstr. 15, 48149, Münster, Germany
| | - Albrecht Schwab
- University of Münster, Institute of Physiology II, Robert-Koch-Str. 27b, 48149, Münster, Germany
| | - Johannes A Eble
- University of Münster, Institute of Physiological Chemistry and Pathobiochemistry, Waldeyerstr. 15, 48149, Münster, Germany.
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吕 晓, 周 知, 朱 丽, 周 吉, 黄 慧, 张 超, 刘 晓. [Construction and identification of a HEK293 cell line with stable TrxR1 overexpression]. NAN FANG YI KE DA XUE XUE BAO = JOURNAL OF SOUTHERN MEDICAL UNIVERSITY 2022; 42:554-560. [PMID: 35527491 PMCID: PMC9085581 DOI: 10.12122/j.issn.1673-4254.2022.04.11] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Indexed: 12/19/2022]
Abstract
OBJECTIVE To construct a HEK293 cell line stably overexpressing TrxR1 as a cell model for functional study of TrxR1 and screening of TrxR1-targeting drugs. METHODS TrxR1 gene was amplified by PCR and ligated with the lentivirus expression vector pLVX-Puro, which was transformed into Escherichia coli and identified by Sanger dideoxy sequencing. HEK293 cells were infected with the recombinant lentivirus vector (pLVX-Puro-TXNRD1) and screened with Puromycin for cell clones with stable TrxR1 overexpression (HEK293-TrxR1-OE cells). HEK293-TrxR1-OE cells, along with HEK293 cells infected with pLVX-Puro vector (HEK293-NC) and normal HEK293 cells, were tested for mRNA and protein expression levels of TrxR1 using RT-qPCR and Western blotting. TrxR1 enzyme activity in the cells was evaluated with insulin endpoint assay and TRFS-green probe imaging. The sensitivity of the cells to auranofin, a specific TrxR1 inhibitor, was determined with CCK8 assay. RESULTS TrxR1 gene was successfully inserted into the lentiviral vector pLVX-Puro as confirmed by DNA sequencing. The enzyme activity and mRNA and protein expression levels of TrxR1 were significantly higher in HEK293-TrxR1-OE cells than in HEK293 and HEK293-NC cells (P < 0.005). The inhibitory effects of auranofin on proliferation and cellular TrxR1 enzyme activity were significantly attenuated in HEK293-TrxR1-OE cells as compared with HEK293 and HEK293-NC cells (P < 0.005). CONCLUSION We successfully obtained a HEK293 cell line with stable TrxR1 overexpression, which shows resistance to auranofin and can be used for screening TrxR1 targeting drugs.
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Affiliation(s)
- 晓梅 吕
- 皖南医学院药物筛选与评价研究所,安徽 芜湖 241000Center of Drug Screening and Evaluation, Wannan Medical College, Wuhu 241000, China
| | - 知音 周
- 皖南医学院药物筛选与评价研究所,安徽 芜湖 241000Center of Drug Screening and Evaluation, Wannan Medical College, Wuhu 241000, China
| | - 丽 朱
- 皖南医学院药物筛选与评价研究所,安徽 芜湖 241000Center of Drug Screening and Evaluation, Wannan Medical College, Wuhu 241000, China
| | - 吉 周
- 附属弋矶山医院生殖医学中心,安徽 芜湖 241000Center for Reproductive Medicine, First Affiliated Hospital of Wannan Medical College, Wuhu 241000, China
| | - 慧丹 黄
- 皖南医学院药物筛选与评价研究所,安徽 芜湖 241000Center of Drug Screening and Evaluation, Wannan Medical College, Wuhu 241000, China
| | - 超 张
- 皖南医学院药物筛选与评价研究所,安徽 芜湖 241000Center of Drug Screening and Evaluation, Wannan Medical College, Wuhu 241000, China
| | - 晓平 刘
- 皖南医学院药物筛选与评价研究所,安徽 芜湖 241000Center of Drug Screening and Evaluation, Wannan Medical College, Wuhu 241000, China
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Abstract
The brain harbors a unique ability to, figuratively speaking, shift its gears. During wakefulness, the brain is geared fully toward processing information and behaving, while homeostatic functions predominate during sleep. The blood-brain barrier establishes a stable environment that is optimal for neuronal function, yet the barrier imposes a physiological problem; transcapillary filtration that forms extracellular fluid in other organs is reduced to a minimum in brain. Consequently, the brain depends on a special fluid [the cerebrospinal fluid (CSF)] that is flushed into brain along the unique perivascular spaces created by astrocytic vascular endfeet. We describe this pathway, coined the term glymphatic system, based on its dependency on astrocytic vascular endfeet and their adluminal expression of aquaporin-4 water channels facing toward CSF-filled perivascular spaces. Glymphatic clearance of potentially harmful metabolic or protein waste products, such as amyloid-β, is primarily active during sleep, when its physiological drivers, the cardiac cycle, respiration, and slow vasomotion, together efficiently propel CSF inflow along periarterial spaces. The brain's extracellular space contains an abundance of proteoglycans and hyaluronan, which provide a low-resistance hydraulic conduit that rapidly can expand and shrink during the sleep-wake cycle. We describe this unique fluid system of the brain, which meets the brain's requisites to maintain homeostasis similar to peripheral organs, considering the blood-brain-barrier and the paths for formation and egress of the CSF.
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Affiliation(s)
- Martin Kaag Rasmussen
- Center for Translational Neuromedicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Humberto Mestre
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, New York
| | - Maiken Nedergaard
- Center for Translational Neuromedicine, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
- Center for Translational Neuromedicine, University of Rochester Medical Center, Rochester, New York
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38
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Korkmazhan E, Kennard AS, Garzon-Coral C, Vasquez CG, Dunn AR. Tether-guided lamellipodia enable rapid wound healing. Biophys J 2022; 121:1029-1037. [PMID: 35167863 PMCID: PMC8943750 DOI: 10.1016/j.bpj.2022.02.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/15/2021] [Accepted: 02/03/2022] [Indexed: 11/20/2022] Open
Abstract
Adhesion between animal cells and the underlying extracellular matrix is challenged during wounding, cell division, and a variety of pathological processes. How cells recover adhesion in the immediate aftermath of detachment from the extracellular matrix remains incompletely understood, due in part to technical limitations. Here, we used acute chemical and mechanical perturbations to examine how epithelial cells respond to partial delamination events. In both cases, we found that cells extended lamellipodia to establish readhesion within seconds of detachment. These lamellipodia were guided by sparse membrane tethers whose tips remained attached to their original points of adhesion, yielding lamellipodia that appear to be qualitatively distinct from those observed during cell migration. In vivo measurements in the context of a zebrafish wound assay showed a similar behavior, in which membrane tethers guided rapidly extending lamellipodia. In the case of mechanical wounding events, cells selectively extended tether-guided lamellipodia in the direction opposite of the pulling force, resulting in the rapid reestablishment of contact with the substrate. We suggest that membrane tether-guided lamellipodial respreading may represent a general mechanism to reestablish tissue integrity in the face of acute disruption.
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Affiliation(s)
- Elgin Korkmazhan
- Graduate Program in Biophysics, Stanford University, Stanford, California; Department of Chemical Engineering, Stanford University, Stanford, California
| | - Andrew S Kennard
- Department of Biology and Howard Hughes Medical Institute, University of Washington, Seattle, Washington
| | - Carlos Garzon-Coral
- Department of Chemical Engineering, Stanford University, Stanford, California
| | - Claudia G Vasquez
- Department of Chemical Engineering, Stanford University, Stanford, California
| | - Alexander R Dunn
- Department of Chemical Engineering, Stanford University, Stanford, California.
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Benk LT, Benk AS, Lira RB, Cavalcanti-Adam EA, Dimova R, Lipowsky R, Geiger B, Spatz JP. Integrin α
IIb
β
3
Activation and Clustering in Minimal Synthetic Cells. ADVANCED NANOBIOMED RESEARCH 2022. [DOI: 10.1002/anbr.202100094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Lucia T. Benk
- Department of Cellular Biophysics Max Planck Institute for Medical Research Jahnstr. 29 69120 Heidelberg Germany
| | - Amelie S. Benk
- Department of Cellular Biophysics Max Planck Institute for Medical Research Jahnstr. 29 69120 Heidelberg Germany
| | - Rafael B. Lira
- Theory & Bio-Systems Max Planck Institute of Colloids and Interfaces 14424 Potsdam Germany
- Faculty of Science and Engineering Molecular Biophysics Zernike Institute for Advanced Materials 9747 AG Groningen The Netherlands
| | - Elisabetta Ada Cavalcanti-Adam
- Department of Cellular Biophysics Max Planck Institute for Medical Research Jahnstr. 29 69120 Heidelberg Germany
- Max Planck School Matter to Life Jahnstr. 29 69120 Heidelberg Germany
| | - Rumiana Dimova
- Theory & Bio-Systems Max Planck Institute of Colloids and Interfaces 14424 Potsdam Germany
| | - Reinhard Lipowsky
- Theory & Bio-Systems Max Planck Institute of Colloids and Interfaces 14424 Potsdam Germany
- Max Planck School Matter to Life Jahnstr. 29 69120 Heidelberg Germany
| | - Benjamin Geiger
- Department of Molecular Cell Biology Weizmann Institute of Science Rehovot 76100 Israel
| | - Joachim P. Spatz
- Department of Cellular Biophysics Max Planck Institute for Medical Research Jahnstr. 29 69120 Heidelberg Germany
- Max Planck School Matter to Life Jahnstr. 29 69120 Heidelberg Germany
- Institute for Molecular Systems Engineering (IMSE) Heidelberg University 69120 Heidelberg Germany
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40
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Lötscher J, Martí I Líndez AA, Kirchhammer N, Cribioli E, Giordano Attianese GMP, Trefny MP, Lenz M, Rothschild SI, Strati P, Künzli M, Lotter C, Schenk SH, Dehio P, Löliger J, Litzler L, Schreiner D, Koch V, Page N, Lee D, Grählert J, Kuzmin D, Burgener AV, Merkler D, Pless M, Balmer ML, Reith W, Huwyler J, Irving M, King CG, Zippelius A, Hess C. Magnesium sensing via LFA-1 regulates CD8 + T cell effector function. Cell 2022; 185:585-602.e29. [PMID: 35051368 DOI: 10.1016/j.cell.2021.12.039] [Citation(s) in RCA: 85] [Impact Index Per Article: 42.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 11/15/2021] [Accepted: 12/22/2021] [Indexed: 12/13/2022]
Abstract
The relevance of extracellular magnesium in cellular immunity remains largely unknown. Here, we show that the co-stimulatory cell-surface molecule LFA-1 requires magnesium to adopt its active conformation on CD8+ T cells, thereby augmenting calcium flux, signal transduction, metabolic reprogramming, immune synapse formation, and, as a consequence, specific cytotoxicity. Accordingly, magnesium-sufficiency sensed via LFA-1 translated to the superior performance of pathogen- and tumor-specific T cells, enhanced effectiveness of bi-specific T cell engaging antibodies, and improved CAR T cell function. Clinically, low serum magnesium levels were associated with more rapid disease progression and shorter overall survival in CAR T cell and immune checkpoint antibody-treated patients. LFA-1 thus directly incorporates information on the composition of the microenvironment as a determinant of outside-in signaling activity. These findings conceptually link co-stimulation and nutrient sensing and point to the magnesium-LFA-1 axis as a therapeutically amenable biologic system.
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Affiliation(s)
- Jonas Lötscher
- Department of Biomedicine, Immunobiology, University of Basel and University Hospital of Basel, 4031 Basel, Switzerland
| | - Adrià-Arnau Martí I Líndez
- Department of Biomedicine, Immunobiology, University of Basel and University Hospital of Basel, 4031 Basel, Switzerland; Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland; Department of Medicine, CITIID, Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge CB2 0AW, UK
| | - Nicole Kirchhammer
- Department of Biomedicine, Cancer Immunology, University of Basel and University Hospital of Basel, 4031 Basel, Switzerland
| | - Elisabetta Cribioli
- Ludwig Institute for Cancer Research, University of Lausanne, 1066 Epalinges, Switzerland; Department of Oncology, University Hospital of Lausanne, 1011 Lausanne, Switzerland
| | - Greta Maria Paola Giordano Attianese
- Ludwig Institute for Cancer Research, University of Lausanne, 1066 Epalinges, Switzerland; Department of Oncology, University Hospital of Lausanne, 1011 Lausanne, Switzerland
| | - Marcel P Trefny
- Department of Biomedicine, Cancer Immunology, University of Basel and University Hospital of Basel, 4031 Basel, Switzerland
| | - Markus Lenz
- University of Applied Science Northwestern Switzerland, Institute for Ecopreneurship, 4132 Muttenz, Switzerland
| | - Sacha I Rothschild
- Division of Medical Oncology and Comprehensive Cancer Center, University Hospital Basel, 4031 Basel, Switzerland; Swiss Group for Clinical Cancer Research, 3008 Bern, Switzerland
| | - Paolo Strati
- Department of Lymphoma and Myeloma, University of Texas MD Anderson Cancer Center, Houston, TX 77030, USA
| | - Marco Künzli
- Department of Biomedicine, Immune Cell Biology, University and University Hospital of Basel, 4031 Basel, Switzerland
| | - Claudia Lotter
- Department of Pharmaceutical Sciences, Pharmaceutical Technology, University of Basel, 4056 Basel, Switzerland
| | - Susanne H Schenk
- Department of Pharmaceutical Sciences, Pharmaceutical Technology, University of Basel, 4056 Basel, Switzerland
| | - Philippe Dehio
- Department of Biomedicine, Immunobiology, University of Basel and University Hospital of Basel, 4031 Basel, Switzerland
| | - Jordan Löliger
- Department of Biomedicine, Immunobiology, University of Basel and University Hospital of Basel, 4031 Basel, Switzerland
| | - Ludivine Litzler
- Department of Biomedicine, Immune Cell Biology, University and University Hospital of Basel, 4031 Basel, Switzerland
| | - David Schreiner
- Department of Biomedicine, Immune Cell Biology, University and University Hospital of Basel, 4031 Basel, Switzerland
| | - Victoria Koch
- Department of Biomedicine, Cancer Immunology, University of Basel and University Hospital of Basel, 4031 Basel, Switzerland
| | - Nicolas Page
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Dahye Lee
- Department of Biomedicine, Immunobiology, University of Basel and University Hospital of Basel, 4031 Basel, Switzerland
| | - Jasmin Grählert
- Department of Biomedicine, Immunobiology, University of Basel and University Hospital of Basel, 4031 Basel, Switzerland
| | - Dmitry Kuzmin
- Hornet Therapeutics Ltd, London SW1Y 5ES, UK; Department of Medical Oncology, Yale School of Medicine, New Haven, CT 06510, USA
| | - Anne-Valérie Burgener
- Department of Biomedicine, Immunobiology, University of Basel and University Hospital of Basel, 4031 Basel, Switzerland
| | - Doron Merkler
- Department of Pathology and Immunology, University of Geneva, Geneva, Switzerland
| | - Miklos Pless
- Swiss Group for Clinical Cancer Research, 3008 Bern, Switzerland; Department of Oncology, Cantonal Hospital Winterthur, 8400 Winterthur, Switzerland
| | - Maria L Balmer
- Department of Biomedicine, Immunobiology, University of Basel and University Hospital of Basel, 4031 Basel, Switzerland; Department for Biomedical Research (DBMR), University Clinic for Diabetes, Endocrinology, Clinical Nutrition and Metabolism, Inselspital, University of Bern, 3008 Bern, Switzerland; Diabetes Center Berne (DCB), 3010 Bern, Switzerland
| | - Walter Reith
- Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, 1211 Geneva, Switzerland
| | - Jörg Huwyler
- Department of Pharmaceutical Sciences, Pharmaceutical Technology, University of Basel, 4056 Basel, Switzerland
| | - Melita Irving
- Ludwig Institute for Cancer Research, University of Lausanne, 1066 Epalinges, Switzerland; Department of Oncology, University Hospital of Lausanne, 1011 Lausanne, Switzerland
| | - Carolyn G King
- Department of Biomedicine, Immune Cell Biology, University and University Hospital of Basel, 4031 Basel, Switzerland
| | - Alfred Zippelius
- Department of Biomedicine, Cancer Immunology, University of Basel and University Hospital of Basel, 4031 Basel, Switzerland; Division of Medical Oncology and Comprehensive Cancer Center, University Hospital Basel, 4031 Basel, Switzerland
| | - Christoph Hess
- Department of Biomedicine, Immunobiology, University of Basel and University Hospital of Basel, 4031 Basel, Switzerland; Department of Medicine, CITIID, Jeffrey Cheah Biomedical Centre, University of Cambridge, Cambridge CB2 0AW, UK.
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41
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Brunetti RM, Kockelkoren G, Raghavan P, Bell GR, Britain D, Puri N, Collins SR, Leonetti MD, Stamou D, Weiner OD. WASP integrates substrate topology and cell polarity to guide neutrophil migration. J Cell Biol 2022; 221:e202104046. [PMID: 34964841 PMCID: PMC8719638 DOI: 10.1083/jcb.202104046] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 10/19/2021] [Accepted: 12/10/2021] [Indexed: 12/02/2022] Open
Abstract
To control their movement, cells need to coordinate actin assembly with the geometric features of their substrate. Here, we uncover a role for the actin regulator WASP in the 3D migration of neutrophils. We show that WASP responds to substrate topology by enriching to sites of inward, substrate-induced membrane deformation. Superresolution imaging reveals that WASP preferentially enriches to the necks of these substrate-induced invaginations, a distribution that could support substrate pinching. WASP facilitates recruitment of the Arp2/3 complex to these sites, stimulating local actin assembly that couples substrate features with the cytoskeleton. Surprisingly, WASP only enriches to membrane deformations in the front half of the cell, within a permissive zone set by WASP's front-biased regulator Cdc42. While WASP KO cells exhibit relatively normal migration on flat substrates, they are defective at topology-directed migration. Our data suggest that WASP integrates substrate topology with cell polarity by selectively polymerizing actin around substrate-induced membrane deformations in the front half of the cell.
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Affiliation(s)
- Rachel M. Brunetti
- Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA
- Center for Geometrically Engineered Cellular Membranes, University of California, San Francisco, San Francisco, CA
| | - Gabriele Kockelkoren
- Department of Chemistry, University of Copenhagen, Copenhagen, Denmark
- Center for Geometrically Engineered Cellular Membranes, University of Copenhagen, Copenhagen, Denmark
| | - Preethi Raghavan
- University of California, Berkeley–University of California, San Francisco Graduate Program in Bioengineering, University of California, San Francisco, San Francisco, CA
- Chan Zuckerberg Biohub, San Francisco, CA
| | - George R.R. Bell
- Department of Microbiology and Molecular Genetics, University of California, Davis, Davis, CA
| | - Derek Britain
- Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA
- Center for Geometrically Engineered Cellular Membranes, University of California, San Francisco, San Francisco, CA
| | - Natasha Puri
- Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA
| | - Sean R. Collins
- Department of Microbiology and Molecular Genetics, University of California, Davis, Davis, CA
| | | | - Dimitrios Stamou
- Department of Chemistry, University of Copenhagen, Copenhagen, Denmark
- Center for Geometrically Engineered Cellular Membranes, University of Copenhagen, Copenhagen, Denmark
| | - Orion D. Weiner
- Cardiovascular Research Institute, University of California, San Francisco, San Francisco, CA
- Department of Biochemistry and Biophysics, University of California, San Francisco, San Francisco, CA
- Center for Geometrically Engineered Cellular Membranes, University of California, San Francisco, San Francisco, CA
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42
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Wu Z, Zhong Z, He W, Wu Y, Cai Y, Yang H, Hong Y. Construction of a drug-containing microenvironment for in situ bone regeneration. MATERIALS ADVANCES 2022. [DOI: 10.1039/d2ma00057a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Bioactive glass-coated hierarchical porous tricalcium phosphate ceramics were constructed as both bone scaffolds and drug delivery devices to treat S. aureus-infected bone defects.
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Affiliation(s)
- Zhen Wu
- National Engineering Research Centre for Biomaterials; Department of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
| | - Zhou Zhong
- Department of Orthopaedic Surgery, West China Hospital, Sichuan University, Chengdu 610041, P. R. China
| | - Wenchao He
- National Engineering Research Centre for Biomaterials; Department of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
| | - Yanmei Wu
- National Engineering Research Centre for Biomaterials; Department of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
| | - Yuyan Cai
- National Engineering Research Centre for Biomaterials; Department of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
| | - Huilin Yang
- Department of Orthopaedics, The first Hospital Affiliated to Suzhou University, Suzhou, 215006, P. R. China
| | - Youliang Hong
- National Engineering Research Centre for Biomaterials; Department of Biomedical Engineering, Sichuan University, Chengdu, 610064, P. R. China
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43
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Krutty JD, Sun J, Koesser K, Murphy WL, Gopalan P. Polymer-Coated Magnetic Microspheres Conjugated with Growth Factor Receptor Binding Peptides Enable Cell Sorting. ACS Biomater Sci Eng 2021; 7:5927-5932. [PMID: 34851098 DOI: 10.1021/acsbiomaterials.1c01199] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The separation and sorting of human cells is an important step in the bioprocessing of cell-based therapeutics. Heterogeneous mixtures of cells must be sorted to isolate the desired cell type and purify the final product. This process is often achieved by antibody-based sorting techniques. In this work, we demonstrate that magnetic microspheres may be functionalized with peptides that selectively bind to cells on the basis of their relative concentration of specific surface proteins. Five-micrometer-magnetic microspheres were coated with the synthetic copolymer PVG (poly(poly(ethylene glycol)methyl ether methacrylate-ran-vinyl dimethyl azlactone-ran-glycidyl methacrylate) and functionalized with the vascular endothelial growth factor receptor binding peptide (VRBP), which binds to the vascular endothelial growth factor receptor (VEGFR). These microspheres exhibited low cytotoxicity and bind to cells depending on their relative surface protein expression. Finally, coated, magnetic microspheres were used to separate heterogeneous populations of cells dependent on their VEGFR expression through magnetic-assisted cell sorting (MACS), demonstrating that peptide-based cell sorting mechanisms may be useful in the bioprocessing of human-cell-based products.
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Affiliation(s)
- John D Krutty
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Jian Sun
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Kevin Koesser
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - William L Murphy
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States.,Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States.,Department of Orthopedics and Rehabilitation, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
| | - Padma Gopalan
- Department of Materials Science and Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States.,Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States.,Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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44
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Bieri M, Hendrickx R, Bauer M, Yu B, Jetzer T, Dreier B, Mittl PRE, Sobek J, Plückthun A, Greber UF, Hemmi S. The RGD-binding integrins αvβ6 and αvβ8 are receptors for mouse adenovirus-1 and -3 infection. PLoS Pathog 2021; 17:e1010083. [PMID: 34910784 PMCID: PMC8673666 DOI: 10.1371/journal.ppat.1010083] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 11/01/2021] [Indexed: 12/12/2022] Open
Abstract
Mammalian adenoviruses (AdVs) comprise more than ~350 types including over 100 human (HAdVs) and just three mouse AdVs (MAdVs). While most HAdVs initiate infection by high affinity/avidity binding of their fiber knob (FK) protein to either coxsackievirus AdV receptor (CAR), CD46 or desmoglein (DSG)-2, MAdV-1 (M1) infection requires arginine-glycine-aspartate (RGD) binding integrins. To identify the receptors mediating MAdV infection we generated five novel reporter viruses for MAdV-1/-2/-3 (M1, M2, M3) transducing permissive murine (m) CMT-93 cells, but not B16 mouse melanoma cells expressing mCAR, human (h) CD46 or hDSG-2. Recombinant M1 or M3 FKs cross-blocked M1 and M3 but not M2 infections. Profiling of murine and human cells expressing RGD-binding integrins suggested that αvβ6 and αvβ8 heterodimers are associated with M1 and M3 infections. Ectopic expression of mβ6 in B16 cells strongly enhanced M1 and M3 binding, infection, and progeny production comparable with mαvβ6-positive CMT-93 cells, whereas mβ8 expressing cells were more permissive to M1 than M3. Anti-integrin antibodies potently blocked M1 and M3 binding and infection of CMT-93 cells and hαvβ8-positive M000216 cells. Soluble integrin αvβ6, and synthetic peptides containing the RGDLXXL sequence derived from FK-M1, FK-M3 and foot and mouth disease virus coat protein strongly interfered with M1/M3 infections, in agreement with high affinity interactions of FK-M1/FK-M3 with αvβ6/αvβ8, determined by surface plasmon resonance measurements. Molecular docking simulations of ternary complexes revealed a bent conformation of RGDLXXL-containing FK-M3 peptides on the subunit interface of αvβ6/β8, where the distal leucine residue dips into a hydrophobic pocket of β6/8, the arginine residue ionically engages αv aspartate215, and the aspartate residue coordinates a divalent cation in αvβ6/β8. Together, the RGDLXXL-bearing FKs are part of an essential mechanism for M1/M3 infection engaging murine and human αvβ6/8 integrins. These integrins are highly conserved in other mammals, and may favour cross-species virus transmission.
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Affiliation(s)
- Manuela Bieri
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
- Molecular Life Sciences Graduate School, ETH and University Of Zurich, Switzerland
| | - Rodinde Hendrickx
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
- Molecular Life Sciences Graduate School, ETH and University Of Zurich, Switzerland
| | - Michael Bauer
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Bin Yu
- National Engineering Laboratory for AIDS Vaccine, School of Life Sciences, Jilin University, Changchun, China
| | - Tania Jetzer
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Birgit Dreier
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Peer R. E. Mittl
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Jens Sobek
- Functional Genomics Center Zurich, Eidgenössische Technische Hochschule (ETH) Zurich and University of Zurich, Zurich, Switzerland
| | - Andreas Plückthun
- Department of Biochemistry, University of Zurich, Zurich, Switzerland
| | - Urs F. Greber
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
| | - Silvio Hemmi
- Department of Molecular Life Sciences, University of Zurich, Zurich, Switzerland
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45
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Stamboroski S, Boateng K, Lierath J, Kowalik T, Thiel K, Köppen S, Noeske PLM, Brüggemann D. Influence of Divalent Metal Ions on the Precipitation of the Plasma Protein Fibrinogen. Biomacromolecules 2021; 22:4642-4658. [PMID: 34670087 DOI: 10.1021/acs.biomac.1c00930] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Fibrinogen nanofibers are very attractive biomaterials to mimic the native blood clot architecture. Previously, we reported the self-assembly of fibrinogen nanofibers in the presence of monovalent salts and have now studied how divalent salts influence fibrinogen precipitation. Although the secondary fibrinogen structure was significantly altered with divalent metal ions, morphological analysis revealed exclusively smooth fibrinogen precipitates. In situ monitoring of the surface roughness facilitated predicting the tendency of various salts to form fibrinogen fibers or smooth films. Analysis of the chemical composition revealed that divalent salts were removed from smooth fibrinogen films upon rinsing while monovalent Na+ species were still present in fibrinogen fibers. Therefore, we assume that the decisive factor controlling the morphology of fibrinogen precipitates is direct ion-protein contact, which requires disruption of the ion-surrounding hydration shells. We conclude that in fibrinogen aggregates, this mechanism is effective only for monovalent ions, whereas divalent ions are limited to indirect fibrinogen adsorption.
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Affiliation(s)
- Stephani Stamboroski
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Strasse 12, 28359 Bremen, Germany.,Institute for Biophysics, University of Bremen, Otto-Hahn-Allee 1, 28359 Bremen, Germany
| | - Kwasi Boateng
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Strasse 12, 28359 Bremen, Germany.,Institute for Biophysics, University of Bremen, Otto-Hahn-Allee 1, 28359 Bremen, Germany
| | - Jana Lierath
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Strasse 12, 28359 Bremen, Germany.,Institute for Biophysics, University of Bremen, Otto-Hahn-Allee 1, 28359 Bremen, Germany
| | - Thomas Kowalik
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Strasse 12, 28359 Bremen, Germany
| | - Karsten Thiel
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Strasse 12, 28359 Bremen, Germany
| | - Susan Köppen
- Hybrid Materials Interfaces Group, Faculty of Production Engineering and Bremen Center for Computational Materials Science, University of Bremen, Am Fallturm 1, 28359 Bremen, Germany.,MAPEX Center for Materials and Processes, University of Bremen, 28359 Bremen, Germany
| | - Paul-Ludwig Michael Noeske
- Fraunhofer Institute for Manufacturing Technology and Advanced Materials IFAM, Wiener Strasse 12, 28359 Bremen, Germany
| | - Dorothea Brüggemann
- Institute for Biophysics, University of Bremen, Otto-Hahn-Allee 1, 28359 Bremen, Germany.,MAPEX Center for Materials and Processes, University of Bremen, 28359 Bremen, Germany
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46
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Role of integrins in the metastatic spread of high-grade serous ovarian cancer. Arch Gynecol Obstet 2021; 305:1291-1298. [PMID: 34689222 PMCID: PMC9013321 DOI: 10.1007/s00404-021-06281-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Accepted: 10/11/2021] [Indexed: 12/24/2022]
Abstract
PURPOSE Integrins may be involved in the metastatic spread of high-grade serous ovarian cancer (HGSOC) which determines the therapeutical approach and prognosis. We investigated the integrin expression in primary tumor and metastases of advanced HGSOC. METHODS The expression of integrin α2, α4, α5, α6, and β1 was assessed by immunostaining in tumor samples of the ovary, omentum, and peritoneum of each patient. Differences in integrin expression among tumor localizations and their association with clinicopathological parameters were examined by Fisher's exact test. The impact of integrin expression on progression-free survival (PFS) and overall survival (OS) was examined by Cox regression and Kaplan-Meier analyses. RESULTS Hundred and thirteen tumor samples of 40 HGSOC patients were examined. The expression of the integrins did not differ between the three tumor localizations (all p values > 0.05) with the exception of high expression of integrin α4 in primary tumor and omentum (52.5% versus 47.5%, p = 0.008) and primary tumor and peritoneum (52.5% versus 47.5%, p = 0.050). High expression of integrin α4 in peritoneum was associated with poorer PFS (HR 2.02 95% CI 1.01-4.05, p = 0.047), younger age (p = 0.047), and death (p = 0.046). Median PFS in patients with high expression of integrin α4 was 13.00 months, whereas median PFS in patients without high expression of integrin α4 was 21.00 months (p = 0.040). Expression of other integrins did not correlate with PFS or OS. CONCLUSION Expression of integrin α4 may be altered during the metastatic spread of HGSOC and affect prognosis, whereas expression of integrin α2, α5, α6, and β1 did not reveal any prognostic value.
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47
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Deshayes de Cambronne R, Fouet A, Picart A, Bourrel AS, Anjou C, Bouvier G, Candeias C, Bouaboud A, Costa L, Boulay AC, Cohen-Salmon M, Plu I, Rambaud C, Faurobert E, Albigès-Rizo C, Tazi A, Poyart C, Guignot J. CC17 group B Streptococcus exploits integrins for neonatal meningitis development. J Clin Invest 2021; 131:136737. [PMID: 33465054 DOI: 10.1172/jci136737] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2020] [Accepted: 01/13/2021] [Indexed: 12/28/2022] Open
Abstract
Group B Streptococcus (GBS) is the major cause of human neonatal infections. A single clone, designated CC17-GBS, accounts for more than 80% of meningitis cases, the most severe form of the infection. However, the events allowing blood-borne GBS to penetrate the brain remain largely elusive. In this study, we identified the host transmembrane receptors α5β1 and αvβ3 integrins as the ligands of Srr2, a major CC17-GBS-specific adhesin. Two motifs located in the binding region of Srr2 were responsible for the interaction between CC17-GBS and these integrins. We demonstrated in a blood-brain-barrier cellular model that both integrins contributed to the adhesion and internalization of CC17-GBS. Strikingly, both integrins were overexpressed during the postnatal period in the brain vessels of the blood-brain barrier and blood-cerebrospinal fluid barrier and contributed to juvenile susceptibility to CC17 meningitis. Finally, blocking these integrins decreased the ability of CC17-GBS to cross into the CNS of juvenile mice in an in vivo model of meningitis. Our study demonstrated that CC17-GBS exploits integrins in order to cross the brain vessels, leading to meningitis. Importantly, it provides host molecular insights into neonate's susceptibility to CC17-GBS meningitis, thereby opening new perspectives for therapeutic and prevention strategies of GBS-elicited meningitis.
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Affiliation(s)
| | - Agnès Fouet
- Université de Paris, Institut Cochin, INSERM, U1016, CNRS, UMR8104, Paris, France
| | - Amandine Picart
- Université de Paris, Institut Cochin, INSERM, U1016, CNRS, UMR8104, Paris, France
| | - Anne-Sophie Bourrel
- Université de Paris, Institut Cochin, INSERM, U1016, CNRS, UMR8104, Paris, France.,Hôpitaux Universitaires Paris Centre, Cochin, Assistance Publique Hôpitaux de Paris, France
| | - Cyril Anjou
- Université de Paris, Institut Cochin, INSERM, U1016, CNRS, UMR8104, Paris, France
| | - Guillaume Bouvier
- Structural Bioinformatics Unit, Department of Structural Biology and Chemistry, Institut Pasteur, CNRS UMR3528, C3BI, Paris, France
| | - Cristina Candeias
- Université de Paris, Institut Cochin, INSERM, U1016, CNRS, UMR8104, Paris, France
| | - Abdelouhab Bouaboud
- Université de Paris, Institut Cochin, INSERM, U1016, CNRS, UMR8104, Paris, France
| | - Lionel Costa
- Université de Paris, Institut Cochin, INSERM, U1016, CNRS, UMR8104, Paris, France
| | - Anne-Cécile Boulay
- Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS UMR7241, INSERM U1050, PSL Research University, Paris, France
| | - Martine Cohen-Salmon
- Center for Interdisciplinary Research in Biology (CIRB), Collège de France, CNRS UMR7241, INSERM U1050, PSL Research University, Paris, France
| | - Isabelle Plu
- Sorbonne Université/Département de Neuropathologie Raymond Escourolle - Hôpital Pitié-Salpêtrière - Assistance Publique-Hôpitaux de Paris, France
| | - Caroline Rambaud
- Université de Versailles Saint Quentin en Yvelines (Université Paris-Saclay)/Service d'anatomie-pathologique et médecine légale, Hôpital Raymond Poincaré, Garches, France
| | - Eva Faurobert
- INSERM U1209, CNRS UMR 5309, Institute for Advanced Biosciences, France/Université Grenoble Alpes, La Tronche, France
| | - Corinne Albigès-Rizo
- INSERM U1209, CNRS UMR 5309, Institute for Advanced Biosciences, France/Université Grenoble Alpes, La Tronche, France
| | - Asmaa Tazi
- Université de Paris, Institut Cochin, INSERM, U1016, CNRS, UMR8104, Paris, France.,Hôpitaux Universitaires Paris Centre, Cochin, Assistance Publique Hôpitaux de Paris, France.,Centre National de Référence des Streptocoques, France
| | - Claire Poyart
- Université de Paris, Institut Cochin, INSERM, U1016, CNRS, UMR8104, Paris, France.,Hôpitaux Universitaires Paris Centre, Cochin, Assistance Publique Hôpitaux de Paris, France.,Centre National de Référence des Streptocoques, France
| | - Julie Guignot
- Université de Paris, Institut Cochin, INSERM, U1016, CNRS, UMR8104, Paris, France
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48
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Pedrero SG, Llamas-Sillero P, Serrano-López J. A Multidisciplinary Journey towards Bone Tissue Engineering. MATERIALS (BASEL, SWITZERLAND) 2021; 14:4896. [PMID: 34500986 PMCID: PMC8432705 DOI: 10.3390/ma14174896] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 08/14/2021] [Accepted: 08/25/2021] [Indexed: 01/08/2023]
Abstract
Millions of patients suffer yearly from bone fractures and disorders such as osteoporosis or cancer, which constitute the most common causes of severe long-term pain and physical disabilities. The intrinsic capacity of bone to repair the damaged bone allows normal healing of most small bone injuries. However, larger bone defects or more complex diseases require additional stimulation to fully heal. In this context, the traditional routes to address bone disorders present several associated drawbacks concerning their efficacy and cost-effectiveness. Thus, alternative therapies become necessary to overcome these limitations. In recent decades, bone tissue engineering has emerged as a promising interdisciplinary strategy to mimic environments specifically designed to facilitate bone tissue regeneration. Approaches developed to date aim at three essential factors: osteoconductive scaffolds, osteoinduction through growth factors, and cells with osteogenic capability. This review addresses the biological basis of bone and its remodeling process, providing an overview of the bone tissue engineering strategies developed to date and describing the mechanisms that underlie cell-biomaterial interactions.
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Affiliation(s)
- Sara G. Pedrero
- Experimental Hematology Lab, IIS-Fundación Jiménez Díaz, UAM, 28040 Madrid, Spain; (S.G.P.); (P.L.-S.)
| | - Pilar Llamas-Sillero
- Experimental Hematology Lab, IIS-Fundación Jiménez Díaz, UAM, 28040 Madrid, Spain; (S.G.P.); (P.L.-S.)
- Hematology Department, Fundación Jiménez Díaz University Hospital, 28040 Madrid, Spain
| | - Juana Serrano-López
- Experimental Hematology Lab, IIS-Fundación Jiménez Díaz, UAM, 28040 Madrid, Spain; (S.G.P.); (P.L.-S.)
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49
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Yang J, Park J, Koehler M, Simpson J, Luque D, Rodríguez JM, Alsteens D. Rotavirus Binding to Cell Surface Receptors Directly Recruiting α
2
Integrin. ADVANCED NANOBIOMED RESEARCH 2021. [DOI: 10.1002/anbr.202100077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Affiliation(s)
- Jinsung Yang
- Louvain Institute of Biomolecular Science and Technology Université Catholique de Louvain Louvain-la-Neuve 1348 Belgium
| | | | - Melanie Koehler
- Louvain Institute of Biomolecular Science and Technology Université Catholique de Louvain Louvain-la-Neuve 1348 Belgium
| | - Joshua Simpson
- Louvain Institute of Biomolecular Science and Technology Université Catholique de Louvain Louvain-la-Neuve 1348 Belgium
| | - Daniel Luque
- Centro Nacional de Microbiología/ISCIII Madrid 28220 Spain
| | | | - David Alsteens
- Louvain Institute of Biomolecular Science and Technology Université Catholique de Louvain Louvain-la-Neuve 1348 Belgium
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Manganese systemic distribution is modulated in vivo during tumor progression and affects tumor cell migration and invasion in vitro. Sci Rep 2021; 11:15833. [PMID: 34349175 PMCID: PMC8338990 DOI: 10.1038/s41598-021-95190-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Accepted: 07/22/2021] [Indexed: 11/23/2022] Open
Abstract
Metastatic disease remains the leading cause of death in cancer and understanding the mechanisms involved in tumor progression continues to be challenging. This work investigates the role of manganese in tumor progression in an in vivo model of tumor growth. Our data revealed that manganese accumulates within primary tumors and secondary organs as manganese-rich niches. Consequences of such phenomenon were investigated, and we verified that short-term changes in manganese alter cell surface molecules syndecan-1 and β1-integrin, enhance collective cell migration and invasive behavior. Long-term increased levels of manganese do not affect cell growth and viability but enhance cell migration. We also observed that manganese is secreted from tumor cells in extracellular vesicles, rather than in soluble form. Finally, we describe exogenous glycosaminoglycans that counteract manganese effects on tumor cell behavior. In conclusion, our analyses describe manganese as a central element in tumor progression by accumulating in Mn-rich niches in vivo, as well as in vitro, affecting migration and extracellular vesicle secretion in vitro. Manganese accumulation in specific regions of the organism may not be a common ground for all cancers, nevertheless, it represents a new aspect of tumor progression that deserves special attention.
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