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Patton AP, Krogager TP, Maywood ES, Smyllie NJ, Morris EL, Skehel M, Hastings MH. Multi-Omic Analysis Reveals Astrocytic Annexin-A2 as Critical for Network-Level Circadian Timekeeping in the Suprachiasmatic Nucleus. Glia 2025; 73:1483-1501. [PMID: 40171808 PMCID: PMC12121465 DOI: 10.1002/glia.70018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2024] [Revised: 03/12/2025] [Accepted: 03/14/2025] [Indexed: 04/04/2025]
Abstract
The mammalian suprachiasmatic nucleus (SCN) orchestrates daily (circadian) rhythms of physiology and behavior by broadcasting timing cues generated autonomously by its mutually reinforcing network of ~10,000 neurons and ~3000 astrocytes. Although astrocytic control of extracellular glutamate and GABA has been implicated in driving circadian oscillations in SCN gene expression and neuronal activity, the full scale of the network-level signaling mechanisms is unknown. To understand better how this astrocyte-neuron network operates, we adopted a multi-omics approach, first using SILAC-based mass spectrometry to generate an SCN proteome where ~7% of identified proteins were circadian. This circadian proteome was analyzed bioinformatically alongside existing single-cell RNAseq transcriptomic data to identify the cell-types and processes to which they contribute. This highlighted "S100 protein binding," tracked to astrocytes, and revealed annexin-A2 (Anxa2) as an astrocyte-enriched circadian protein for further investigation. We show that Anxa2 and its partner S100a10 are co-expressed and enriched in SCN astrocytes. We also show that pharmacological disruption of their association acutely and reversibly dysregulated the circadian cycle of astrocytic calcium levels and progressively compromised SCN neuronal oscillations. Anxa2 and S100a10 interaction therefore constitutes an astrocytic cellular signaling axis that regulates circadian neuronal excitability and ultimately SCN network coherence necessary for circadian timekeeping.
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Affiliation(s)
- Andrew P. Patton
- Division of NeurobiologyMedical Research Council Laboratory of Molecular BiologyCambridgeUK
| | - Toke P. Krogager
- Division of NeurobiologyMedical Research Council Laboratory of Molecular BiologyCambridgeUK
| | - Elizabeth S. Maywood
- Division of NeurobiologyMedical Research Council Laboratory of Molecular BiologyCambridgeUK
| | - Nicola J. Smyllie
- Division of NeurobiologyMedical Research Council Laboratory of Molecular BiologyCambridgeUK
| | - Emma L. Morris
- Division of NeurobiologyMedical Research Council Laboratory of Molecular BiologyCambridgeUK
- Department for Neural Systems and CodingMax Planck Institute for Brain ResearchFrankfurt am MainGermany
| | - Mark Skehel
- Medical Research Council Laboratory of Molecular BiologyCambridgeUK
- Proteomics Science Technology PlatformThe Francis Crick InstituteLondonUK
| | - Michael H. Hastings
- Division of NeurobiologyMedical Research Council Laboratory of Molecular BiologyCambridgeUK
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2
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Zhao Y, Luo Y, Chai Y, Lam Y, Gong Y, Chen K, Lu G, Xia G, Chang Y, Yang M, Xu Y, Xin JH. Precise Oligomer Organization Enhanced Electrostatic Interactions for Efficient Cell Membrane Binding. NANO LETTERS 2025; 25:8488-8494. [PMID: 40377435 PMCID: PMC12123663 DOI: 10.1021/acs.nanolett.5c00651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2025] [Revised: 05/07/2025] [Accepted: 05/07/2025] [Indexed: 05/18/2025]
Abstract
Efficient binding of cell membranes onto nanomaterials is essential for biomedical applications such as diagnostics and cellular engineering. We find that fine control over oligomer orientation led to enhanced electrostatic interactions with the cell membrane and improved cell membrane capture. Specifically, we designed polycation oligomers incorporating positively charged imidazole heads and alkyl tails synthesized through the reversible addition-fragmentation chain transfer (RAFT) reaction. These oligomers spontaneously self-assemble through head-to-head π-π interactions, and their spatial arrangement markedly accelerates the interaction with negatively charged cell membranes. Experimental results indicate that these oriented oligomers produce a large decrease in the time required to kill bacteria compared to unmodified nanostructures (3 min versus 100 min). This is attributed to locally concentrated electrostatic attraction, which enhances the attraction between nanostructures and negatively charged cell surfaces. Our findings suggest that molecular orientation control could be a promising approach to enhancing interactions between biomaterials and live cells.
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Affiliation(s)
- Yuanyuan Zhao
- School
of Fashion and Textiles, The Hong Kong Polytechnic
University, Hong Kong999077, China
| | - Yiqian Luo
- School
of Materials Science and Engineering, Tongji
University, Shanghai201804, China
| | - Yi Chai
- Department
of Neurosurgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, 200127, Shanghai, China
| | - Yintung Lam
- School
of Fashion and Textiles, The Hong Kong Polytechnic
University, Hong Kong999077, China
| | - Yongqing Gong
- School
of Materials Science and Engineering, Tongji
University, Shanghai201804, China
| | - Ke Chen
- School
of Materials Science and Engineering, Tongji
University, Shanghai201804, China
| | - Gang Lu
- School
of Energy and Environment, City University
of Hong Kong, Hong Kong999077, China
| | - Gang Xia
- School
of Fashion and Textiles, The Hong Kong Polytechnic
University, Hong Kong999077, China
| | - Yun Chang
- Department
of Biomedical Engineering, The Hong Kong
Polytechnic University, Hong Kong999077, China
| | - Menghao Yang
- School
of Materials Science and Engineering, Tongji
University, Shanghai201804, China
| | - Yang Xu
- School
of Materials Science and Engineering, Tongji
University, Shanghai201804, China
| | - John Haozhong Xin
- School
of Fashion and Textiles, The Hong Kong Polytechnic
University, Hong Kong999077, China
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3
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Sadleir KR, Gomez KP, Edwards AE, Patel AJ, Ley ML, Khatri AW, Guo J, Mahesh S, Watkins EA, Popovic J, Karunakaran DKP, Prokopenko D, Tanzi RE, Bustos B, Lubbe SJ, Demonbruen AR, McNally EM, Vassar R. Annexin A6 membrane repair protein protects against amyloid-induced dystrophic neurites and tau phosphorylation in Alzheimer's disease model mice. Acta Neuropathol 2025; 149:51. [PMID: 40411591 PMCID: PMC12103342 DOI: 10.1007/s00401-025-02888-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2025] [Revised: 04/23/2025] [Accepted: 04/30/2025] [Indexed: 05/26/2025]
Abstract
In Alzheimer's disease, accumulation of amyloid-β (Aβ) peptide is thought to cause formation of neurofibrillary tangles composed of hyperphosphorylated tau protein, which correlates with neuronal loss and cognitive impairment, but the mechanism linking Aβ and tau pathologies is unknown. Dystrophic neurites, which surround Aβ plaques and accumulate phosphorylated tau and other proteins, may play a role in seeding and spreading of pathologic tau. Here, we investigate the novel hypothesis that improved membrane repair capacity decreases dystrophic neurite formation by protecting axons from Aβ-induced membrane damage. Using a ratiometric calcium sensor and a FRET-based calpain cleavage sensor, we demonstrate that dystrophic neurites in 5XFAD mice have elevated resting calcium levels and calpain activity because of putative membrane damage. Annexin A6, a plasma membrane repair in muscle and neurons, is present at plasma membrane of neurons and dystrophic neurites in murine and human brains. Overexpression of annexin A6 in brains of 5XFAD mice decreased size and quantity of dystrophic neurites and accumulation of phospho-tau181, an early biomarker of amyloid pathology. Phospho-tau231, another early amyloid biomarker, and phosphorylated of tau kinases, c-jun N-terminal kinase (JNK) and Calmodulin Kinase II (CaMKII) accumulate in dystrophic neurites in the brains of amyloid pathology mice and humans with AD, suggesting that dystrophic neurites are sites of active tau phosphorylation. Overexpression of dominant-negative annexin A6 in 5XFAD mice increased dystrophic neurites and phospho-tau181. Intracerebral injection of recombinant annexin A6 in 5XFAD and APP-NLGF knock-in mice resulted in localization of recombinant A6 to membranes of dystrophic neurites, suggesting therapeutic potential of recombinant annexin A6 for AD. In conclusion, dystrophic neurites have Aβ-induced membrane damage characterized by calcium elevation, calpain activation, and accumulation of tau kinases and phosphorylated tau. Overexpression of annexin A6 reduces dystrophic neurites and phospho-tau accumulation, suggesting that annexin A6-mediated membrane repair may represent a novel therapeutic approach for AD.
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Affiliation(s)
- Katherine R Sadleir
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA.
| | - Karen P Gomez
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Abigail E Edwards
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Armana J Patel
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Makenna L Ley
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Ammaarah W Khatri
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Joanna Guo
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Shreya Mahesh
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Elyse A Watkins
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | - Jelena Popovic
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
| | | | - Dmitry Prokopenko
- Department of Neurology, Genetics and Aging Research Unit and the McCance Center for Brain Health, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Rudolph E Tanzi
- Department of Neurology, Genetics and Aging Research Unit and the McCance Center for Brain Health, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - Bernabe Bustos
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Simpson Querrey Center for Neurogenetics, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Steven J Lubbe
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA
- Simpson Querrey Center for Neurogenetics, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Alexis R Demonbruen
- Department of Pharmacology, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Elizabeth M McNally
- Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Robert Vassar
- Department of Neurology, Feinberg School of Medicine, Northwestern University, Chicago, IL, 60611, USA.
- Mesulam Center for Cognitive Neurology and Alzheimer's Disease, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
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4
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Gong Y, Chen L, Wang H, Zheng D, Li F, Wu C, Li Y, Deng Y, He Z, Yu C. ANXA1 promotes intrahepatic cholangiocarcinoma proliferation and growth by regulating glutamine metabolism through GOT1 stabilization. J Exp Clin Cancer Res 2025; 44:151. [PMID: 40390008 PMCID: PMC12087091 DOI: 10.1186/s13046-025-03400-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2025] [Accepted: 04/23/2025] [Indexed: 05/21/2025] Open
Abstract
BACKGROUND Intrahepatic cholangiocarcinoma (ICC) is a malignant tumor with a poor prognosis, marked by a postoperative recurrence rate of 50-60% and a 5-year survival rate of 8-30%. Abnormal tumor metabolism, particularly, amino acid metabolism, plays a key role in malignant progression. However, the molecular mechanisms linking amino acid metabolism to ICC progression remain unclear. METHODS Bioinformatics was used to identity the key amino acid metabolism related gene in ICC, qRT-PCR, western blotting and immunohistochemical (IHC) were used to detect the expression of ANXA1 in normal tissues or ICC tissues and cells at mRNA and protein levels. The effects of ANXA1 on the proliferation ability of ICC in vitro and in vivo were investigated using CCK8, cloning formation experiment, EdU, IHC, nude mice subcutaneous tumorigenesis model. Immunoprecipitation, mass spectrometry analysis, protein ubiquitin level detection test, immunofluorescence co-localization, and redox stress metabolite detection test were used to explore the metabolism-related regulatory mechanism of ANXA1. RESULTS we employed bioinformatics analysis to classify ICC into metabolic subgroups with distinct prognoses and identified the associated biomarker Annexin A1(ANXA1), whose high expression is correlated with poor prognosis and promotes ICC development. Mass spectrometry analysis revealed that ANXA1 interacts with the key enzyme in glutamine metabolism, glutamic-oxaloacetic transaminase 1(GOT1). Through in vitro and in vivo experiments, overexpressed ANXA1 stabilizes GOT1 by recruiting the deubiquitinase USP5. This stabilization enhances glutamine uptake, as well as the production of aspartate and glutamate, which in turn reduces oxidative stress, thereby promoting tumor cell growth. Moreover, knockdown of ANXA1 combined with glutamine uptake inhibition significantly suppressed ICC cell proliferation and Inhibited subcutaneous tumor formation and growth. CONCLUSIONS These results suggest that the ANXA1/USP5/GOT1 axis promotes glutamine metabolism and ICC proliferation and growth. Inhibiting ANXA1 alongside glutamine uptake inhibition offers a promising strategy for treating ICC.
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Affiliation(s)
- Yanyu Gong
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, 550001, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, 550004, China
- Guizhou Provincial Institute of Hepatobiliary, Pancreatic and Splenic Diseases, Guiyang, 550001, China
- Key Laboratory of Liver, Pancreas and Spleen of Guizhou Medical University, Gallbladder, Guiyang, 550001, China
- Guizhou Provincial Clinical Medical Research Center of Hepatobiliary Surgery, Guiyang, 550004, Guizhou, China
| | - Liwen Chen
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, 550001, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, 550004, China
- Guizhou Provincial Institute of Hepatobiliary, Pancreatic and Splenic Diseases, Guiyang, 550001, China
- Key Laboratory of Liver, Pancreas and Spleen of Guizhou Medical University, Gallbladder, Guiyang, 550001, China
- Guizhou Provincial Clinical Medical Research Center of Hepatobiliary Surgery, Guiyang, 550004, Guizhou, China
| | - Hao Wang
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, 550001, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, 550004, China
- Guizhou Provincial Institute of Hepatobiliary, Pancreatic and Splenic Diseases, Guiyang, 550001, China
- Key Laboratory of Liver, Pancreas and Spleen of Guizhou Medical University, Gallbladder, Guiyang, 550001, China
- Guizhou Provincial Clinical Medical Research Center of Hepatobiliary Surgery, Guiyang, 550004, Guizhou, China
| | - Dijie Zheng
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, 550001, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, 550004, China
- Guizhou Provincial Institute of Hepatobiliary, Pancreatic and Splenic Diseases, Guiyang, 550001, China
- Key Laboratory of Liver, Pancreas and Spleen of Guizhou Medical University, Gallbladder, Guiyang, 550001, China
- Guizhou Provincial Clinical Medical Research Center of Hepatobiliary Surgery, Guiyang, 550004, Guizhou, China
| | - Futang Li
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, 550001, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, 550004, China
- Guizhou Provincial Institute of Hepatobiliary, Pancreatic and Splenic Diseases, Guiyang, 550001, China
- Key Laboratory of Liver, Pancreas and Spleen of Guizhou Medical University, Gallbladder, Guiyang, 550001, China
- Guizhou Provincial Clinical Medical Research Center of Hepatobiliary Surgery, Guiyang, 550004, Guizhou, China
| | - Changhao Wu
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, 550001, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, 550004, China
- Guizhou Provincial Institute of Hepatobiliary, Pancreatic and Splenic Diseases, Guiyang, 550001, China
- Key Laboratory of Liver, Pancreas and Spleen of Guizhou Medical University, Gallbladder, Guiyang, 550001, China
- Guizhou Provincial Clinical Medical Research Center of Hepatobiliary Surgery, Guiyang, 550004, Guizhou, China
| | - Yongning Li
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, 550001, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, 550004, China
- Guizhou Provincial Institute of Hepatobiliary, Pancreatic and Splenic Diseases, Guiyang, 550001, China
- Key Laboratory of Liver, Pancreas and Spleen of Guizhou Medical University, Gallbladder, Guiyang, 550001, China
- Guizhou Provincial Clinical Medical Research Center of Hepatobiliary Surgery, Guiyang, 550004, Guizhou, China
| | - Yazhu Deng
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, 550001, China
- School of Clinical Medicine, Guizhou Medical University, Guiyang, 550004, China
- Guizhou Provincial Institute of Hepatobiliary, Pancreatic and Splenic Diseases, Guiyang, 550001, China
- Key Laboratory of Liver, Pancreas and Spleen of Guizhou Medical University, Gallbladder, Guiyang, 550001, China
- Guizhou Provincial Clinical Medical Research Center of Hepatobiliary Surgery, Guiyang, 550004, Guizhou, China
- Key Laboratory of Hepatobiliary and Pancreatic Diseases Treatment and Bioinformatics Research, Guizhou Medical University, Guiyang, 550001, China
| | - Zhiwei He
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, 550001, China.
- School of Clinical Medicine, Guizhou Medical University, Guiyang, 550004, China.
- Guizhou Provincial Institute of Hepatobiliary, Pancreatic and Splenic Diseases, Guiyang, 550001, China.
- Key Laboratory of Liver, Pancreas and Spleen of Guizhou Medical University, Gallbladder, Guiyang, 550001, China.
- Guizhou Provincial Clinical Medical Research Center of Hepatobiliary Surgery, Guiyang, 550004, Guizhou, China.
- Key Laboratory of Hepatobiliary and Pancreatic Diseases Treatment and Bioinformatics Research, Guizhou Medical University, Guiyang, 550001, China.
- Department of Hepatobiliary Surgery, Shenzhen University General Hospital, Shenzhen, 518052, China.
| | - Chao Yu
- Department of Hepatobiliary Surgery, The Affiliated Hospital of Guizhou Medical University, Guizhou Medical University, Guiyang, 550001, China.
- School of Clinical Medicine, Guizhou Medical University, Guiyang, 550004, China.
- Guizhou Provincial Institute of Hepatobiliary, Pancreatic and Splenic Diseases, Guiyang, 550001, China.
- Key Laboratory of Liver, Pancreas and Spleen of Guizhou Medical University, Gallbladder, Guiyang, 550001, China.
- Guizhou Provincial Clinical Medical Research Center of Hepatobiliary Surgery, Guiyang, 550004, Guizhou, China.
- Key Laboratory of Hepatobiliary and Pancreatic Diseases Treatment and Bioinformatics Research, Guizhou Medical University, Guiyang, 550001, China.
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5
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Yuan Z, Ostrowska‐Podhorodecka Z, Cox T, Norouzi M, Wang Y, Robaszkiewicz K, Siatkowska M, Xia K, Ali A, Abovsky M, Jurisica I, Smith P, McCulloch CA. Annexin A2 Contributes to Release of Extracellular Vimentin in Response to Inflammation. FASEB J 2025; 39:e70621. [PMID: 40346842 PMCID: PMC12065020 DOI: 10.1096/fj.202500793r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2025] [Revised: 04/21/2025] [Accepted: 04/29/2025] [Indexed: 05/12/2025]
Abstract
Vimentin, an abundant intracellular cytoskeletal protein, is secreted into the extracellular space, where it can amplify tissue destruction in inflammatory diseases. The mechanisms by which inflammation promotes the release of extracellular vimentin (ECV) are not defined. In human subjects, we found > twofold higher levels of ECV in gingival crevicular fluid from periodontitis sites with inflammation compared with healthy sites. In cultures of human gingival fibroblasts (hGFs) treated with 1% serum or IL-1β (10 ng/mL) to model tissue injury or inflammation, respectively, we found that 1% serum increased ECV release > 11-fold while IL-1β further enhanced release 17-fold. Mass spectrometry of vimentin immunoprecipitates identified Annexin A2 (AnxA2), a Ca2+-dependent phospholipid-binding protein, as a potential binding protein of ECV, which was confirmed by immunoprecipitation of cultured hGFs and immunostaining of inflamed human gingiva. IL-1β treatment enhanced the abundance of AnxA2 and vimentin in membrane fractions prepared by sucrose gradients of hGF lysates. IL-1β increased colocalization of ECV and AnxA2 at the outer aspect of the plasma membrane of intact hGFs. Knockdown of AnxA2 with siRNA or inhibition of the unconventional secretory pathway reduced ECV release from hGFs. These findings indicate that the production of ECV by hGFs in response to inflammation is mediated by an AnxA2-dependent, unconventional secretory pathway that may play a role in amplification of the inflammatory response.
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Affiliation(s)
- Zhiyao Yuan
- Nanjing Stomatological Hospital, Affiliated Hospital of Medical School, Research Institute of StomatologyNanjing UniversityNanjingChina
| | | | - T. Cox
- Faculty of DentistryUniversity of TorontoTorontoOntarioCanada
| | - M. Norouzi
- Faculty of DentistryUniversity of TorontoTorontoOntarioCanada
| | - Y. Wang
- Faculty of DentistryUniversity of TorontoTorontoOntarioCanada
| | - K. Robaszkiewicz
- Department of Biochemistry and Cell Biology, Faculty of Natural SciencesKazimierz Wielki University in BydgoszczBydgoszczPoland
| | - M. Siatkowska
- Department of Biochemistry and Cell Biology, Faculty of Natural SciencesKazimierz Wielki University in BydgoszczBydgoszczPoland
- Laboratory of Molecular and Nanostructural BiophysicsBionanoparkLodzPoland
| | - K. Xia
- Faculty of DentistryUniversity of TorontoTorontoOntarioCanada
| | - A. Ali
- Faculty of DentistryUniversity of TorontoTorontoOntarioCanada
| | - M. Abovsky
- Osteoarthritis Research Program, Division of Orthopedic Surgery, Schroeder Arthritis Institute and Data Science Discovery Centre for Chronic Diseases, Krembil Research InstituteUniversity Health NetworkTorontoOntarioCanada
| | - I. Jurisica
- Faculty of DentistryUniversity of TorontoTorontoOntarioCanada
- Osteoarthritis Research Program, Division of Orthopedic Surgery, Schroeder Arthritis Institute and Data Science Discovery Centre for Chronic Diseases, Krembil Research InstituteUniversity Health NetworkTorontoOntarioCanada
- Department of Medical BiophysicsUniversity of TorontoTorontoOntarioCanada
- Department of Computer ScienceUniversity of TorontoTorontoOntarioCanada
- Institute of NeuroimmunologySlovak Academy of SciencesBratislavaSlovakia
| | - P. Smith
- Faculty of Medicine, School of DentistryPontificia Universidad Católica de ChileSantiagoChile
| | - C. A. McCulloch
- Faculty of DentistryUniversity of TorontoTorontoOntarioCanada
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Wu LY, Zhai MN, Bai XQ, He C, Guo YY, Zhang YQ, Wang J, Gao YT, Tu QF, Liu M, Chen JJ, Zhang ZJ. Deficiency of KIF15 contributes to oxaliplatin-induced cold hypersensitivity by limiting annexin A2 and enhancing TRPA1 localization in DRG neuronal membrane. Neuropharmacology 2025; 269:110343. [PMID: 39914618 DOI: 10.1016/j.neuropharm.2025.110343] [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: 11/18/2024] [Revised: 01/02/2025] [Accepted: 02/02/2025] [Indexed: 02/10/2025]
Abstract
Effective treatments for oxaliplatin-induced cold hypersensitivity remain a significant clinical challenge, primarily due to gaps in our understanding of the underlying pathophysiology. Our previous studies have indicated that kinesin-12 (KIF15) is expressed in neurons, suggesting its potential involvement in neurodevelopment and neuronal plasticity. However, its role in mediating chemotherapy-induced pain in primary sensory neurons has not yet been reported. In this study, we found that KIF15-knockout (Kif15-KO) mice showed an increase in cold sensitivity, with this heightened cold hypersensitivity being dependent on the accumulation of the TRP ankyrin 1 (TRPA1) channel on the cell membrane. We further demonstrated that in a model of oxaliplatin-induced peripheral neuropathy (OIPN), KIF15 expression was markedly reduced, coinciding with an increase in TRPA1 membrane localization and a physical interaction between KIF15 and Annexin A2 in peripheral sensory neurons. This suggests a mechanistic link where the loss of KIF15 disrupts the function of Annexin A2, enhancing the localization of TRPA1 on the cell membrane of dorsal root ganglion (DRG) neurons, thereby contributing to cold hypersensitivity. Our results offer a new understanding of the molecular mechanisms underlying chemotherapy-induced cold hypersensitivity, highlighting KIF15 as a key regulator and a potential therapeutic target for conditions like OIPN.
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Affiliation(s)
- Liu-Ying Wu
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, Jiangsu Province, China; Department of Human Anatomy, Medical School of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Meng-Nan Zhai
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, Jiangsu Province, China; Department of Human Anatomy, Medical School of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Xue-Qiang Bai
- Department of Human Anatomy, Medical School of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Cheng He
- Department of Human Anatomy, Medical School of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Yun-Ying Guo
- Department of Human Anatomy, Medical School of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Yu-Qi Zhang
- Department of Human Anatomy, Medical School of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Juan Wang
- Department of Human Anatomy, Medical School of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Yong-Tao Gao
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Qi-Feng Tu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, 226001, Jiangsu Province, China
| | - Mei Liu
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-innovation Center of Neuroregeneration, NMPA Key Laboratory for Research and Evaluation of Tissue Engineering Technology Products, Nantong University, Nantong, 226001, Jiangsu Province, China.
| | - Jun-Jie Chen
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, Jiangsu Province, China.
| | - Zhi-Jun Zhang
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Medical School of Nantong University, Nantong, 226001, Jiangsu Province, China; Department of Human Anatomy, Medical School of Nantong University, Nantong, 226001, Jiangsu Province, China
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7
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Vedeler A, Tartaglia GG, Pastore A. Annexin, a Protein for All Seasons: From Calcium Dependent Membrane Metabolism to RNA Recognition. Bioessays 2025:e70019. [PMID: 40350993 DOI: 10.1002/bies.70019] [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: 01/20/2025] [Revised: 04/15/2025] [Accepted: 04/29/2025] [Indexed: 05/14/2025]
Abstract
Annexins are a protein family well known to bind to phospholipids in a calcium-dependent way. They are involved in several different crucial cellular processes such as cell division, calcium signaling, membrane repair, vesicle trafficking, and apoptosis. Although RNA binding for some members of the family was reported long ago, it was only recently that it was shown that a common feature of the family is also the ability to bind RNA, a discovery that has added significantly to our perception of the cellular role of these proteins. In the present review, we discuss the properties of annexins under an updated light and the current knowledge on the RNA binding properties of annexins. We then focus specifically on annexin A11, because this is a less characterized member of the family but, at the same time, a potentially important component of the mRNA transport machinery in neurons. We hope to offer to the reader a more complete picture of the annexins' binding properties and new tools to evaluate the multifaceted functions of this important protein family.
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Affiliation(s)
- Anni Vedeler
- Neurotargeting Group, Department of Biomedicine, University of Bergen, Bergen, Norway
| | | | - Annalisa Pastore
- Elettra Sincrotrone Trieste, Basovizza, Italy
- The Wohl Institute, King's College London, London, UK
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8
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Di Micco S, Scala MC, Sala M, Barra G, Ghilardi O, Campiglia P, Bifulco G, Vitagliano L, Ruggiero A. Computational, crystallographic, and biophysical characterizations provide insights into calcium and phosphate binding by human annexin A4. Int J Biol Macromol 2025; 308:142600. [PMID: 40157693 DOI: 10.1016/j.ijbiomac.2025.142600] [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: 12/15/2024] [Revised: 03/23/2025] [Accepted: 03/26/2025] [Indexed: 04/01/2025]
Abstract
The members of the annexin family are proteins involved in important biological processes that share a common propensity, mediated by the binding of calcium, to interact with membranes. Despite the remarkable amount of literature reports on these proteins several aspects of their functionality remain obscure. Considering the importance of the pH in modulating annexin activities, we here reassessed the pH dependency (range 4.6-7.4) of the binding of the calcium by human annexin A4 (hAnxA4) and determined its structure from crystals obtained in acidic conditions at nearly atomic resolution in media containing different calcium concentrations. The interactions of calcium ions with hAnxA4 were studied using isothermal titration calorimetry measurements and molecular dynamics simulations. Present solution data corroborate and quantify the pH dependence of the binding of calcium to hAnxA4. Moreover, crystallographic structures provide a clear ranking of the metal affinity of the hAnxA4 calcium binding sites. These findings have been extended by performing computational studies that provide information on the binding affinity of the different calcium sites that are in good agreement with the crystallographic data. Crystallographic data highlight the occurrence of unexpected clusterings of positively charged arginine residues that can cooperate for the binding of the phospholipid phosphate moieties. These crystallographic data integrated with molecular dynamics simulations provide an atomic-level description of the local conformational changes associated with calcium release and upload. Interestingly, docking analyses demonstrate the optimal juxtaposition of these arginine residues and calcium ions to correctly anchor phosphatidylserine.
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Affiliation(s)
- Simone Di Micco
- European Biomedical Research Institute (EBRIS), Via S. De Renzi 50, 84125 Salerno, Italy
| | - Maria Carmina Scala
- Department of Pharmacy, University of Salerno, Via G. Paolo II 132, 84084, Fisciano, Salerno, Italy
| | - Marina Sala
- Department of Pharmacy, University of Salerno, Via G. Paolo II 132, 84084, Fisciano, Salerno, Italy
| | - Giovanni Barra
- Institute of Biostructures and Bioimaging, IBB-CNR, Via P. Castellino 111, 80131 Naples, Italy
| | - Ornella Ghilardi
- Institute of Biostructures and Bioimaging, IBB-CNR, Via P. Castellino 111, 80131 Naples, Italy
| | - Pietro Campiglia
- Department of Pharmacy, University of Salerno, Via G. Paolo II 132, 84084, Fisciano, Salerno, Italy
| | - Giuseppe Bifulco
- Department of Pharmacy, University of Salerno, Via G. Paolo II 132, 84084, Fisciano, Salerno, Italy
| | - Luigi Vitagliano
- Institute of Biostructures and Bioimaging, IBB-CNR, Via P. Castellino 111, 80131 Naples, Italy
| | - Alessia Ruggiero
- Institute of Biostructures and Bioimaging, IBB-CNR, Via P. Castellino 111, 80131 Naples, Italy.
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9
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Medić A, Milićević T, Khraibah A, Herceg Romanić S, Matek Sarić M, Li Y, D'Mello R, Berezovski M, Popović A, Minić Z, Karadžić I. Total proteome and calcium-binding proteins from human breast milk: Exploring the impact of tobacco smoke exposure and environmental factors. Food Chem 2025; 472:142959. [PMID: 39842200 DOI: 10.1016/j.foodchem.2025.142959] [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: 09/20/2024] [Revised: 01/14/2025] [Accepted: 01/16/2025] [Indexed: 01/24/2025]
Abstract
This study integrates proteome analysis of human breast milk (HBM) from a homogeneous group of mothers who are of similar age and live in the same geographical area, along with an analysis of essential and potentially toxic elements in HBM in relation to lifestyle and environmental factors. This preliminary proteomic study, which examined 11 samples of HBM from lactating women, identified a total of 1619 proteins across all samples, revealing significant differences in proteomes influenced by lactation stages, parity, and exposure to tobacco smoke. The pilot study aimed to explore the feasibility of correlating certain proteins with several elements, considered as indicators of tobacco smoke and environmental influences on HBM. Notably, a clear and significant correlation was found between altered calcium content in HBM and the proteome fraction associated with calcium-binding proteins. The findings suggest that all analyzed factors impact the HBM proteome and the activity of certain enzymes.
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Affiliation(s)
- Ana Medić
- University of Belgrade, Faculty of Medicine, Department of Chemistry, Višegradska 26, 11000 Belgrade, Serbia.
| | - Tijana Milićević
- University of Belgrade, Institute of Physics Belgrade, a National Institute of the Republic of Serbia, Pregrevica 118, 11080 Belgrade, Serbia
| | - Abdullah Khraibah
- University of Ottawa, Department of Chemistry and Biomolecular Sciences, John L. Holmes Mass Spectrometry Facility, 10 Marie-Curie, Marion Hall, K1N 6N5 Ottawa, ON, Canada
| | - Snježana Herceg Romanić
- Institute for Medical Research and Occupational Health, Ksaverska Cesta 2, 10001 Zagreb, Croatia
| | - Marijana Matek Sarić
- University of Zadar, Department of Health Studies, Splitska 1, 23000, Zadar, Croatia
| | - Yingxi Li
- University of Ottawa, Department of Chemistry and Biomolecular Sciences, John L. Holmes Mass Spectrometry Facility, 10 Marie-Curie, Marion Hall, K1N 6N5 Ottawa, ON, Canada
| | - Rochelle D'Mello
- University of Ottawa, Department of Chemistry and Biomolecular Sciences, John L. Holmes Mass Spectrometry Facility, 10 Marie-Curie, Marion Hall, K1N 6N5 Ottawa, ON, Canada
| | - Maxim Berezovski
- University of Ottawa, Department of Chemistry and Biomolecular Sciences, John L. Holmes Mass Spectrometry Facility, 10 Marie-Curie, Marion Hall, K1N 6N5 Ottawa, ON, Canada
| | - Aleksandar Popović
- University of Belgrade, Faculty of Chemistry, Studentski trg 12-16, 11000 Belgrade, Serbia
| | - Zoran Minić
- University of Ottawa, Department of Chemistry and Biomolecular Sciences, John L. Holmes Mass Spectrometry Facility, 10 Marie-Curie, Marion Hall, K1N 6N5 Ottawa, ON, Canada.
| | - Ivanka Karadžić
- University of Belgrade, Faculty of Medicine, Department of Chemistry, Višegradska 26, 11000 Belgrade, Serbia
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10
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Qian Z, Li Z, Peng X, Mao Y, Mao X, Li J. Annexin A: Cell Death, Inflammation, and Translational Medicine. J Inflamm Res 2025; 18:5655-5672. [PMID: 40309306 PMCID: PMC12042829 DOI: 10.2147/jir.s511439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2024] [Accepted: 04/07/2025] [Indexed: 05/02/2025] Open
Abstract
The annexin superfamily proteins, a family of calcium-dependent phospholipid-binding proteins, are involved in a variety of Ca²+-regulated membrane events. Annexin A, expressed in vertebrates, has been implicated in a variety of regulated cell death (RCD) pathways, including apoptosis, autophagy, pyroptosis, ferroptosis, and neutrophil extracellular trap-induced cell death (NETosis). Given that inflammation is a key driver of cell death, the roles of Annexin A in inflammation have been extensively studied. In this review, we discuss the regulatory roles of Annexin A in RCD and inflammation, the development of related targeted therapies in translational medicine, and the application of animal models to study these processes. We also analyze current challenges and discuss future directions for improved diagnostic and therapeutic strategies.
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Affiliation(s)
- Zibing Qian
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, 730000, People’s Republic of China
| | - Ziyi Li
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, 730000, People’s Republic of China
| | - Xuebin Peng
- Department of Infectious Disease, The First Hospital of Lanzhou University, Lanzhou, Gansu, 730000, People’s Republic of China
| | - Yongwu Mao
- Department of Infectious Disease, The First Hospital of Lanzhou University, Lanzhou, Gansu, 730000, People’s Republic of China
| | - Xiaorong Mao
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, 730000, People’s Republic of China
- Department of Infectious Disease, The First Hospital of Lanzhou University, Lanzhou, Gansu, 730000, People’s Republic of China
| | - Junfeng Li
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, 730000, People’s Republic of China
- Institute of Infectious Diseases, The First Hospital of Lanzhou University, Lanzhou, Gansu, 730000, People’s Republic of China
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11
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Yoodee S, Malaitad T, Plumworasawat S, Thongboonkerd V. The relevance of calcium-binding domains to promoting activities of annexin A2 in calcium oxalate stone formation. Int J Biol Macromol 2025; 310:143460. [PMID: 40280516 DOI: 10.1016/j.ijbiomac.2025.143460] [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: 03/13/2025] [Revised: 04/15/2025] [Accepted: 04/22/2025] [Indexed: 04/29/2025]
Abstract
Annexin A2 (ANXA2) is a Ca2+-binding protein involved in kidney stone disease (KSD) but with unclear mechanism. Herein, five Ca2+-binding domains of ANXA2 were mutated by substituting glutamic acid (E) at positions 53rd (domain I), 96th (domain II) and 247th (domain IV), and aspartic acid (D) at positions 162nd (domain III) and 322nd (domain V) with alanine (A). Recombinant ANXA2 wide type (WT) and mutants (E53A, E96A, D162A, E247A and D322A) were constructed, produced, purified and subjected to multiple crystal and functional assays. Crystal assays revealed that ANXA2 WT increased calcium oxalate monohydrate (COM) crystal size during crystallization and enhanced growth and crystal-cell adhesion phases compared with blank and negative controls. However, crystals exposed to all ANXA2 mutants had comparable or slightly lower parameters compared with controls. Although ANXA2 WT did not affect crystal aggregation, its mutants still showed a lower degree of crystal aggregation. Immunofluorescence staining and Ca2+-binding assay demonstrated that ANXA2 WT had the greatest affinity to COM crystals and free Ca2+ ions, whereas all the mutants showed lower affinity. Taken together, all five Ca2+-binding domains are relevant to the promoting activities of ANXA2 in COM stone formation by interacting with COM crystal surfaces and free Ca2+ ions.
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Affiliation(s)
- Sunisa Yoodee
- Medical Proteomics Unit, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Thanyalak Malaitad
- Medical Proteomics Unit, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Sirikanya Plumworasawat
- Medical Proteomics Unit, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand
| | - Visith Thongboonkerd
- Medical Proteomics Unit, Research Department, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok 10700, Thailand.
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12
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Wu FF, Liu BZ, Huang YQ, Zhu CL, Xia YL, Zhang KL, Li SJ, Yang YL, Wang YY. Anxa10 and neuropathic pain: Insights into dysregulation of endoplasmic reticulum-mitochondria contact tethering complex and therapeutic potential. Biochim Biophys Acta Mol Basis Dis 2025; 1871:167856. [PMID: 40250776 DOI: 10.1016/j.bbadis.2025.167856] [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: 12/10/2024] [Revised: 03/30/2025] [Accepted: 04/14/2025] [Indexed: 04/20/2025]
Abstract
The stability of membrane contact sites is critically dependent on Endoplasmic Reticulum mitochondria contact tethering complexes (EMCTCs), and dysregulation of these sites has been implicated in neuropathic diseases. In this study, we examined the role of Annexin A10 (Anxa10), a calcium-dependent protein, in neuropathic pain by investigating its influence on EMCTCs dysregulation. Using RNA sequencing, western blotting, and behavioral assays, we observed that spared nerve injury (SNI)-induced neuropathic pain significantly increased Anxa10 expression levels within the spinal dorsal horn (SDH) of mice. By employing cell-specific gene regulation via the Cre/loxp system, we utilized loxp-modified adeno-associated virus vectors to modulate Anxa10 expression in GAD2-Cre (inhibitory neurons), vGlut2-Cre (excitatory neurons), and Fos-Cre (activity-induced neurons) transgenic mice. Our results demonstrated that specific down-regulation of Anxa10 in excitatory neurons within the SDH alleviated neuropathic pain, whereas up-regulation of Anxa10, regardless of cell type, induced spontaneous pain in mice. Ultrastructural analysis of the endoplasmic reticulum (ER) and mitochondria, as well as double immunofluorescence staining, revealed that downregulation of Anxa10 mitigated the SNI-induced reduction in ER-mitochondrial distance. Additionally, it attenuated the SNI-induced upregulation of key components of EMCTCs, including IP3R, GRP75, and VDAC1, while preventing the SNI-induced downregulation of NCX3 expression. Furthermore, we formulated and validated the hypothesis that SGK1 and PI3K are positioned downstream of Anxa10. The up-regulation of Anxa10 compromised mitochondrial integrity and disrupted mitochondrial networks, ultimately leading to elevated oxidative stress. Collectively, these findings suggest that Anxa10 represents a promising therapeutic target for correcting EMCTCs dysregulation and mitigating neuropathic pain.
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Affiliation(s)
- Fei-Fei Wu
- Specific Lab for Mitochondrial Plasticity Underlying Nervous System Diseases, National Demonstration Center for Experimental Basic Medical Science Education, The Fourth Military Medical University, Xi'an 710032, China.
| | - Bo-Zhi Liu
- Specific Lab for Mitochondrial Plasticity Underlying Nervous System Diseases, National Demonstration Center for Experimental Basic Medical Science Education, The Fourth Military Medical University, Xi'an 710032, China.
| | - Yun-Qiang Huang
- Specific Lab for Mitochondrial Plasticity Underlying Nervous System Diseases, National Demonstration Center for Experimental Basic Medical Science Education, The Fourth Military Medical University, Xi'an 710032, China
| | - Chang-Lei Zhu
- Specific Lab for Mitochondrial Plasticity Underlying Nervous System Diseases, National Demonstration Center for Experimental Basic Medical Science Education, The Fourth Military Medical University, Xi'an 710032, China
| | - Yu-Lu Xia
- Specific Lab for Mitochondrial Plasticity Underlying Nervous System Diseases, National Demonstration Center for Experimental Basic Medical Science Education, The Fourth Military Medical University, Xi'an 710032, China
| | - Kun-Long Zhang
- Department of Rehabilitation and Physical Therapy, Xi-Jing Hospital, The Fourth Military Medical University, Xi'an 710032, China
| | - Shu-Jiao Li
- Specific Lab for Mitochondrial Plasticity Underlying Nervous System Diseases, National Demonstration Center for Experimental Basic Medical Science Education, The Fourth Military Medical University, Xi'an 710032, China
| | - Yan-Ling Yang
- Department of Hepatobiliary Surgery, Xi-Jing Hospital, The Fourth Military Medical University, Xi'an, 710032, China.
| | - Ya-Yun Wang
- Specific Lab for Mitochondrial Plasticity Underlying Nervous System Diseases, National Demonstration Center for Experimental Basic Medical Science Education, The Fourth Military Medical University, Xi'an 710032, China.
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13
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Li XF, Wu FG. Aggregation-induced emission-based fluorescent probes for cellular microenvironment detection. Biosens Bioelectron 2025; 274:117130. [PMID: 39904094 DOI: 10.1016/j.bios.2025.117130] [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: 04/27/2024] [Revised: 07/27/2024] [Accepted: 01/02/2025] [Indexed: 02/06/2025]
Abstract
The cellular microenvironment exerts a pivotal regulatory influence on cell survival, function, and behavior. Dynamic analysis and detection of the cellular microenvironment can promptly elucidate changes in cellular microenvironmental information, uncover the pathogenesis of diseases associated with aberrant microenvironments, and aid in predicting disease risk and monitoring disease progression. Aggregation-induced emission (AIE) fluorescent molecules possess unique AIE characteristics and offer significant advantages in imaging and sensing cellular microenvironments. In this review, we present a profile of the remarkable progress achieved in utilizing AIE fluorescent molecules for detecting cellular microenvironments in recent years. We particularly focus on AIE fluorescent probes applied in imaging key parameters of the cellular microenvironment, including pH, viscosity, polarity, and temperature, as well as in analyzing critical biological components of the microenvironment, such as gas signal molecules, metal ions, redox state, and proteins. We underscore the design principles, detection mechanisms, sensing performance, and biological applications of these fluorescent probes. Furthermore, we address the current challenges confronting this field and provide prospects for the future development of AIE probes used for microenvironment detection. We trust that this review will inspire researchers to develop more precise and sensitive AIE fluorescent probes for the detection of cellular microenvironments.
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Affiliation(s)
- Xiang-Fei Li
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, 2 Southeast University Road, Nanjing, 211189, China
| | - Fu-Gen Wu
- State Key Laboratory of Digital Medical Engineering, Jiangsu Key Laboratory for Biomaterials and Devices, School of Biological Science and Medical Engineering, Southeast University, 2 Southeast University Road, Nanjing, 211189, China.
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14
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Semeradtova A, Liegertova M, Herma R, Capkova M, Brignole C, Del Zotto G. Extracellular vesicles in cancer´s communication: messages we can read and how to answer. Mol Cancer 2025; 24:86. [PMID: 40108630 PMCID: PMC11921637 DOI: 10.1186/s12943-025-02282-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2024] [Accepted: 02/24/2025] [Indexed: 03/22/2025] Open
Abstract
Extracellular vesicles (EVs) are emerging as critical mediators of intercellular communication in the tumor microenvironment (TME), profoundly influencing cancer progression. These nano-sized vesicles, released by both tumor and stromal cells, carry a diverse cargo of proteins, nucleic acids, and lipids, reflecting the dynamic cellular landscape and mediating intricate interactions between cells. This review provides a comprehensive overview of the biogenesis, composition, and functional roles of EVs in cancer, highlighting their significance in both basic research and clinical applications. We discuss how cancer cells manipulate EV biogenesis pathways to produce vesicles enriched with pro-tumorigenic molecules, explore the specific contributions of EVs to key hallmarks of cancer, such as angiogenesis, metastasis, and immune evasion, emphasizing their role in shaping TME and driving therapeutic resistance. Concurrently, we submit recent knowledge on how the cargo of EVs can serve as a valuable source of biomarkers for minimally invasive liquid biopsies, and its therapeutic potential, particularly as targeted drug delivery vehicles and immunomodulatory agents, showcasing their promise for enhancing the efficacy and safety of cancer treatments. By deciphering the intricate messages carried by EVs, we can gain a deeper understanding of cancer biology and develop more effective strategies for early detection, targeted therapy, and immunotherapy, paving the way for a new era of personalized and precise cancer medicine with the potential to significantly improve patient outcomes.
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Affiliation(s)
- Alena Semeradtova
- Institute of Photonics and Electronics of the CAS, Chaberská 1014/57, Prague, 182 51, Czech Republic.
| | - Michaela Liegertova
- Centre for Nanomaterials and Biotechnology, Faculty of Science, Jan Evangelista Purkyně University in Ústí Nad Labem, Pasteurova 3632/15, Ústí Nad Labem, 40096, Czech Republic
| | - Regina Herma
- Centre for Nanomaterials and Biotechnology, Faculty of Science, Jan Evangelista Purkyně University in Ústí Nad Labem, Pasteurova 3632/15, Ústí Nad Labem, 40096, Czech Republic
| | - Magdalena Capkova
- Institute of Photonics and Electronics of the CAS, Chaberská 1014/57, Prague, 182 51, Czech Republic
| | - Chiara Brignole
- Laboratory of Experimental Therapies in Oncology, IRCCS Istituto Giannina Gaslini, Via G. Gaslini 5, 16147, Genoa, Italy.
| | - Genny Del Zotto
- Core Facilities, Department of Research and Diagnostics, IRCCS Istituto Giannina Gaslini, 16147, Genoa, Italy.
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15
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Pulica R, Aquib A, Varsanyi C, Gadiyar V, Wang Z, Frederick T, Calianese DC, Patel B, de Dios KV, Poalasin V, De Lorenzo MS, Kotenko SV, Wu Y, Yang A, Choudhary A, Sriram G, Birge RB. Dys-regulated phosphatidylserine externalization as a cell intrinsic immune escape mechanism in cancer. Cell Commun Signal 2025; 23:131. [PMID: 40069722 PMCID: PMC11900106 DOI: 10.1186/s12964-025-02090-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2024] [Accepted: 02/07/2025] [Indexed: 03/14/2025] Open
Abstract
The negatively charged aminophospholipid, phosphatidylserine (PS), is typically restricted to the inner leaflet of the plasma membrane under normal, healthy physiological conditions. PS is irreversibly externalized during apoptosis, where it serves as a signal for elimination by efferocytosis. PS is also reversibly and transiently externalized during cell activation such as platelet and immune cell activation. These events associated with physiological PS externalization are tightly controlled by the regulated activation of flippases and scramblases. Indeed, improper regulation of PS externalization results in thrombotic diseases such as Scott Syndrome, a defect in coagulation and thrombin production, and in the case of efferocytosis, can result in autoimmunity such as systemic lupus erythematosus (SLE) when PS-mediated apoptosis and efferocytosis fails. The physiological regulation of PS is also perturbed in cancer and during viral infection, whereby PS becomes persistently exposed on the surface of such stressed and diseased cells, which can lead to chronic thrombosis and chronic immune evasion. In this review, we summarize evidence for the dysregulation of PS with a main focus on cancer biology and the pathogenic mechanisms for immune evasion and signaling by PS, as well as the discussion of new therapeutic strategies aimed to target externalized PS. We posit that chronic PS externalization is a universal and agnostic marker for diseased tissues, and in cancer, likely reflects a cell intrinsic form of immune escape. The continued development of new therapeutic strategies for targeting PS also provides rationale for their co-utility as adjuvants and with immune checkpoint therapeutics.
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Affiliation(s)
- Rachael Pulica
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers New Jersey Medical School, 205 South Orange Ave, Newark, NJ, 07103, USA
| | - Ahmed Aquib
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers New Jersey Medical School, 205 South Orange Ave, Newark, NJ, 07103, USA
| | - Christopher Varsanyi
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers New Jersey Medical School, 205 South Orange Ave, Newark, NJ, 07103, USA
| | - Varsha Gadiyar
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers New Jersey Medical School, 205 South Orange Ave, Newark, NJ, 07103, USA
| | - Ziren Wang
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers New Jersey Medical School, 205 South Orange Ave, Newark, NJ, 07103, USA
| | - Trevor Frederick
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers New Jersey Medical School, 205 South Orange Ave, Newark, NJ, 07103, USA
| | - David C Calianese
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers New Jersey Medical School, 205 South Orange Ave, Newark, NJ, 07103, USA
| | - Bhumik Patel
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers New Jersey Medical School, 205 South Orange Ave, Newark, NJ, 07103, USA
| | - Kenneth Vergel de Dios
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers New Jersey Medical School, 205 South Orange Ave, Newark, NJ, 07103, USA
| | - Victor Poalasin
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers New Jersey Medical School, 205 South Orange Ave, Newark, NJ, 07103, USA
| | - Mariana S De Lorenzo
- Department of Cell Biology and Molecular Medicine, 185 South Orange Ave, Newark, NJ, 07103, USA
| | - Sergei V Kotenko
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers New Jersey Medical School, 205 South Orange Ave, Newark, NJ, 07103, USA
| | - Yi Wu
- Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, Cyrus Tang Medical Institute, Soochow University, Suzhou, China
| | - Aizen Yang
- Collaborative Innovation Center of Hematology, State Key Laboratory of Radiation Medicine and Prevention, Cyrus Tang Medical Institute, Soochow University, Suzhou, China
| | - Alok Choudhary
- International Center for Public Health, Public Health Research Institute, Newark, NJ, 07103, USA
| | - Ganapathy Sriram
- Department Biological, Chemical and Environmental Sciences, Wheaton College, 26 E Main St, Norton, MA, 02766, USA
| | - Raymond B Birge
- Department of Microbiology, Biochemistry and Molecular Genetics, Center for Cell Signaling, Rutgers New Jersey Medical School, 205 South Orange Ave, Newark, NJ, 07103, USA.
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16
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Xu LL, Singh SK, Nayback C, Metebi A, Agnew D, Buss T, Schnitzer J, Zinn KR. Clinical Scaleup of Humanized AnnA1 Antibody Yielded Unexpected High Reticuloendothelial (RES) Uptake in Mice. Antibodies (Basel) 2025; 14:14. [PMID: 39982229 PMCID: PMC11843838 DOI: 10.3390/antib14010014] [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: 12/24/2024] [Revised: 01/27/2025] [Accepted: 02/01/2025] [Indexed: 02/22/2025] Open
Abstract
BACKGROUND/OBJECTIVES A mouse antibody directed against truncated Annexin A1 showed high tumor retention in pre-clinical cancer models and was approved by the National Cancer Institute Experimental Therapeutics (NExT) program for humanization and large batch cGMP production for toxicology and clinical trials. In this process, a contractor for Leidos accidentally produced a mutated version of humanized AnnA1 (hAnnA1-mut) with a single nucleotide deletion in the terminal Fc coding region that increased the translated size by eight amino acids with random alterations in the final twenty-four amino acids. We investigated the tissue distribution of hAnnA1-mut, hAnnA1, mAnnA1, and isotope-matched human IgG1 under various injection and conjugation conditions with C57BL/6, FVB, and BALB/c nude mice strains. METHODS Biodistribution studies were performed 24 h after injection of Tc-99m-HYNIC radiolabeled antibodies (purity > 98%). Non-reducing gel electrophoresis studies were conducted with IR680 labeled antibodies incubated with various mouse sera. RESULTS Our results showed that Tc-99m-HYNIC-hAnnA1 had low spleen and liver retention not statistically different from Tc-99m-HYNIC-IgG1 and Tc-99m-HYNIC-mAnnA1, with corresponding higher blood levels; however, Tc-99m-HYNIC-hAnnA1-mut had high levels in the spleen and liver with differences identified among the mouse strains, radiolabeling conditions, and injection routes. Histopathology showed no morphological change in the liver or spleen from any conditions. Gel electrophoresis showed an upward shift of hAnnA1-mut, consistent with the binding of blood serum protein. CONCLUSIONS The changes in the Fc region of hAnnA1-mut led to higher liver and spleen uptake, suggesting the antibody's recognition by the innate immune system (likely complement protein binding) and subsequent clearance. Future clinical translation using hAnnA1 and other antibodies needs to limit protein modifications that could drastically reduce blood clearance.
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Affiliation(s)
- Lu Lucy Xu
- Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA; (L.L.X.); (S.K.S.)
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA; (C.N.); (A.M.)
- College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA
| | - Satyendra Kumar Singh
- Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA; (L.L.X.); (S.K.S.)
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA; (C.N.); (A.M.)
| | - Chelsea Nayback
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA; (C.N.); (A.M.)
| | - Abdullah Metebi
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA; (C.N.); (A.M.)
| | - Dalen Agnew
- Department of Pathobiology and Diagnostic Investigation, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA;
| | - Tim Buss
- Proteogenomics Research Institute for Systems Medicine (PRISM), La Jolle, CA 92037, USA; (T.B.); (J.S.)
| | - Jan Schnitzer
- Proteogenomics Research Institute for Systems Medicine (PRISM), La Jolle, CA 92037, USA; (T.B.); (J.S.)
| | - Kurt R. Zinn
- Biomedical Engineering, Michigan State University, East Lansing, MI 48824, USA; (L.L.X.); (S.K.S.)
- Institute for Quantitative Health Science and Engineering, Michigan State University, East Lansing, MI 48824, USA; (C.N.); (A.M.)
- College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA
- Department of Radiology, College of Human Medicine, Michigan State University, East Lansing, MI 48824, USA
- Department of Small Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University, East Lansing, MI 48824, USA
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17
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Huang Z, Whitehead B, Nejsum P, Corredig M, Rasmussen MK. Tomato-derived extracellular vesicles increase intestinal zinc transportation by potentially down-regulating the expression of the metallothionein family. Food Res Int 2025; 203:115804. [PMID: 40022334 DOI: 10.1016/j.foodres.2025.115804] [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: 09/16/2024] [Revised: 01/15/2025] [Accepted: 01/18/2025] [Indexed: 03/03/2025]
Abstract
Extracellular vesicles (EVs) have the ability to regulate physiological and pathological processes across species and have been shown to be present in plants. Tomatoes are one of the most widespread vegetables on the market and exhibit a broad range of health-promoting effects, including antioxidant and anti-inflammatory properties. However, little is known about the bioactivity of tomato-derived EVs. Here, we isolated EVs from tomatoes and explored their gene regulatory potential using array-based transcriptomics. Interestingly, using a differentiated Caco-2 monolayer model, tomato-derived EVs were shown to upregulate the transportation of zinc, which may involve the down-regulation of metallothionein proteins (MTs). Differentiated Caco-2 cells internalized tomato-derived EVs. Post-EV treatment the relative expression levels of MT-related mRNAs within the cells decreased by approximately threefold, accompanied by an approximately twofold reduction in intracellular zinc concentration. Additionally, the amount of secreted zinc in the basolateral medium increased by approximately threefold. Moreover, tomato-derived EV regulation of MT gene expression occurred only in differentiated epithelial cells. This effect was observed in differentiated Caco-2 and HIEC-6 cells, whereas no impact was seen on the MT gene in undifferentiated cells. This mechanistic study uniquely demonstrates the bioactivity of tomato-derived EVs, and for the first time, reveals the ability of plant-derived EVs to modify zinc regulation across the intestinal epithelia. This further suggests the potential of plant-derived EVs as functional food supplements in the future.
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Affiliation(s)
- Ziyu Huang
- Department of Food Science Aarhus University Denmark
| | - Bradley Whitehead
- Department of Clinical Medicine Aarhus University Aarhus Denmark; Department of Infectious Diseases Aarhus University Hospital Aarhus Denmark
| | - Peter Nejsum
- Department of Clinical Medicine Aarhus University Aarhus Denmark; Department of Infectious Diseases Aarhus University Hospital Aarhus Denmark
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18
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Walker V. The Molecular Biology of Placental Transport of Calcium to the Human Foetus. Int J Mol Sci 2025; 26:383. [PMID: 39796238 PMCID: PMC11720126 DOI: 10.3390/ijms26010383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2024] [Revised: 12/23/2024] [Accepted: 12/30/2024] [Indexed: 01/13/2025] Open
Abstract
From fertilisation to delivery, calcium must be transported into and within the foetoplacental unit for intracellular signalling. This requires very rapid, precisely located Ca2+ transfers. In addition, from around the eighth week of gestation, increasing amounts of calcium must be routed directly from maternal blood to the foetus for bone mineralisation through a flow-through system, which does not impact the intracellular Ca2+ concentration. These different processes are mediated by numerous membrane-sited Ca2+ channels, transporters, and exchangers. Understanding the mechanisms is essential to direct interventions to optimise foetal development and postnatal bone health and to protect the mother and foetus from pre-eclampsia. Ethical issues limit the availability of human foetal tissue for study. Our insight into the processes of placental Ca2+ handling is advancing rapidly, enabled by developing genetic, analytical, and computer technology. Because of their diverse sources, the reports of new findings are scattered. This review aims to pull the data together and to highlight areas of uncertainty. Areas needing clarification include trafficking, membrane expression, and recycling of channels and transporters in the placental microvilli; placental metabolism of vitamin D in gestational diabetes and pre-eclampsia; and the vascular effects of increased endothelial Orai expression by pregnancy-specific beta-1-glycoproteins PSG1 and PSG9.
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Affiliation(s)
- Valerie Walker
- Department of Clinical Biochemistry, University Hospital Southampton NHS Foundation Trust, Southampton General Hospital, Southampton SO16 6YD, UK
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19
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Su J, Wang L, Guan X, Li N, Sun L. Knocking-down annexin A3 suppresses inflammation, oxidative stress, apoptosis, and endoplasmic reticulum stress to attenuate sepsis-induced acute kidney injury in HK2 cells. Cytojournal 2024; 21:75. [PMID: 39917002 PMCID: PMC11801658 DOI: 10.25259/cytojournal_64_2024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2024] [Accepted: 11/26/2024] [Indexed: 02/09/2025] Open
Abstract
Objective Sepsis-induced acute kidney injury (AKI) is considered as a life-threatening complication of sepsis. The purpose of this study is to clarify the involvement of annexin A3 (ANXA3) in sepsis-related AKI. Material and Methods Lipopolysaccharide (LPS) was used to establish a cell model based on HK2 cells. ANXA3 expression was quantified through quantitative real-time polymerase chain reaction. Cell proliferative capacities were assessed through 5-ethynyl-2'-deoxyuridine proliferation, cell counting kit-8, and colony formation experiments. Flow cytometry was utilized to analyze apoptotic cells. Inflammatory and oxidative stress indicators were measured by employing corresponding commercial assay kits. Endoplasmic reticulum (ER) stress markers were quantified through western blot analysis. Results ANXA3 levels were significantly elevated in HK2 cells treated with LPS and in serum samples obtained from patients with AKI and sepsis (P < 0.001). LPS treatment exacerbated cellular damage, leading to increased ER and oxidative stresses, apoptosis, and inflammation, whereas knocking down ANXA3 significantly reversed these changes (P < 0.001). Conclusion Interference with ANXA3 protected HK2 cells from LPS-induced cell injury through inhibiting inflammation, oxidative stress, apoptosis, and ER stress.
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Affiliation(s)
- Jie Su
- Department of Emergency, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Lantao Wang
- Department of Emergency, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Xiaoying Guan
- Department of Emergency, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Nan Li
- Department of Emergency, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Lixiao Sun
- Department of Intensive Care Medicine, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
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20
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Guillory A, Fournier J, Kelner A, Hobecker K, Auriac MC, Frances L, Delers A, Pedinotti L, Le Ru A, Keller J, Delaux PM, Gutjahr C, Frei Dit Frey N, de Carvalho-Niebel F. Annexin- and calcium-regulated priming of legume root cells for endosymbiotic infection. Nat Commun 2024; 15:10639. [PMID: 39638784 PMCID: PMC11621553 DOI: 10.1038/s41467-024-55067-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Accepted: 11/27/2024] [Indexed: 12/07/2024] Open
Abstract
Legumes establish endosymbioses with arbuscular mycorrhizal (AM) fungi or rhizobia bacteria to improve mineral nutrition. Symbionts are hosted in privileged habitats, root cortex (for AM fungi) or nodules (for rhizobia) for efficient nutrient exchange. To reach these habitats, plants form cytoplasmic cell bridges, key to predicting and guiding fungal hyphae or rhizobia-filled infection thread (IT) root entry. However, the underlying mechanisms are poorly studied. Here we show that unique ultrastructural changes and calcium (Ca2+) spiking signatures, closely associated with Medicago truncatula Annexin 1 (MtAnn1) accumulation, accompany rhizobia-related bridge formation. Loss of MtAnn1 function in M. truncatula affects Ca2+ spike amplitude, cytoplasmic configuration and rhizobia infection efficiency, consistent with a role of MtAnn1 in regulating infection priming. MtAnn1, which evolved in species establishing intracellular symbioses, is also AM-symbiosis-induced and required for proper arbuscule formation. Together, we propose that MtAnn1 is part of an ancient Ca2+-regulatory module for transcellular endosymbiotic infection.
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Affiliation(s)
- Ambre Guillory
- LIPME, INRAE, CNRS, Université de Toulouse, Castanet-Tolosan, France
| | - Joëlle Fournier
- LIPME, INRAE, CNRS, Université de Toulouse, Castanet-Tolosan, France
| | - Audrey Kelner
- LIPME, INRAE, CNRS, Université de Toulouse, Castanet-Tolosan, France
| | - Karen Hobecker
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | | | - Lisa Frances
- LIPME, INRAE, CNRS, Université de Toulouse, Castanet-Tolosan, France
| | - Anaïs Delers
- LIPME, INRAE, CNRS, Université de Toulouse, Castanet-Tolosan, France
| | - Léa Pedinotti
- LRSV, Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France
| | - Aurélie Le Ru
- FRAIB-TRI imaging platform, Université de Toulouse, CNRS, UPS, Castanet-Tolosan, France
| | - Jean Keller
- LRSV, Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France
| | - Pierre-Marc Delaux
- LRSV, Université de Toulouse, CNRS, UPS, Toulouse INP, Castanet-Tolosan, France
| | - Caroline Gutjahr
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
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21
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Yang L, Liu X, Zhen L, Liu Y, Wu L, Xu W, Peng L, Xie C. ANXA4 restricts HBV replication by inhibiting autophagic degradation of MCM2 in chronic hepatitis B. BMC Med 2024; 22:521. [PMID: 39511535 PMCID: PMC11546334 DOI: 10.1186/s12916-024-03724-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2024] [Accepted: 10/23/2024] [Indexed: 11/15/2024] Open
Abstract
BACKGROUND Hepatitis B virus (HBV) is an enveloped DNA virus that causes chronic hepatitis B (CHB) infection. Annexin, a Ca2+-activated protein, is widely expressed in various organs and tissues and has potential utility in disease diagnosis and treatment. However, the relationship between the annexin family and CHB remains unclear. METHODS Clinical samples from hepatitis patients and donors or healthy individuals were collected. Transcriptome sequencing in CHB liver tissues and HBV-infected cells were performed. HepG2.2.15 cells with the full-length HBV genome and HBV-infected HepG2-NTCP cell models were established. HBV-infected mouse model was constructed and adeno-associated virus was utilized. RESULTS ANXA4 expression was elevated during CHB infection. ANXA4 knockdown promoted HBV replication and aggravated liver injury, while ANXA4 overexpression alleviated that. Mechanistically, autophagy pathway was activated by ANXA4 deficiency, promoting autophagic degradation of minichromosome maintenance complex component 2 (MCM2). MCM2 inhibition activated HBV replication, while MCM2 overexpression attenuated ANXA4 deficiency-induced HBV replication and liver injury. Clinically, the expression of hepatitis B viral protein was negatively correlated with the ANXA4 levels, and CHB patients with high ANXA4 levels (> 8 ng/ml) showed higher sensitivity to interferon therapy. CONCLUSIONS ANXA4 functions as a protective factor during HBV infection. ANXA4 expression is elevated under HBV attack to restrict HBV replication by inhibiting autophagic degradation of MCM2, thereby alleviating liver injury and suppressing the CHB infection process. ANXA4 also enhances the sensitivity of CHB patients to interferon therapy. Therefore, ANXA4 is expected to be a new target for CHB treatment and prognostic evaluation.
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Affiliation(s)
- Luo Yang
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Department of Breast Surgery, The First Affiliated Hospital of Shandong First Medical University & Shandong Provincial Qianfoshan Hospital, Shandong Medicine and Health Key Laboratory of General Surgery, Jinan, Shandong, China
| | - Xianzhi Liu
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, Xiamen, Fujian, China
| | - Limin Zhen
- Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong, China
| | - Ying Liu
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Lina Wu
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Wenxiong Xu
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Liang Peng
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
| | - Chan Xie
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
- Guangdong Key Laboratory of Liver Disease Research, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China.
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22
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Gao L, Dai X, Wu Y, Wang Y, Cheng L, Yan LT. Self-Assembly at Curved Biointerfaces. ACS NANO 2024; 18:30184-30210. [PMID: 39453716 DOI: 10.1021/acsnano.4c09675] [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: 10/27/2024]
Abstract
Most of the biological interfaces are curved. Understanding the organizational structures and interaction patterns at such curved biointerfaces is therefore crucial not only for deepening our comprehension of the principles that govern life processes but also for designing and developing targeted drugs aimed at diseased cells and tissues. Despite the considerable efforts dedicated to this area of research, our understanding of curved biological interfaces is still limited. Many aspects of these interfaces remain elusive, presenting both challenges and opportunities for further exploration. In this review, we summarize the structural characteristics of biological interfaces found in nature, the current research status of materials associated with curved biointerfaces, and the theoretical advancements achieved to date. Finally, we outline future trends and challenges in the theoretical and technological development of curved biointerfaces. By addressing these challenges, people could bridge the knowledge gap and unlock the full potential of curved biointerfaces for scientific and technological advancements, ultimately benefiting various fields and improving human health and well-being.
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Affiliation(s)
- Lijuan Gao
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Xiaobin Dai
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Yibo Wu
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Yuming Wang
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Linghe Cheng
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China
| | - Li-Tang Yan
- State Key Laboratory of Chemical Engineering, Department of Chemical Engineering, Tsinghua University, Beijing 100084, P. R. China
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23
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Loreti M, Cecchini A, Kaufman CD, Stamenkovic C, Renero A, Nicoletti C, Kervadec A, Guarnaccia G, Mayer D, Colas A, Lorenzo Puri P, Sacco A. Tenascin-C from the tissue microenvironment promotes muscle stem cell self-renewal through Annexin A2. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.10.29.620732. [PMID: 39554125 PMCID: PMC11565721 DOI: 10.1101/2024.10.29.620732] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/19/2024]
Abstract
Skeletal muscle tissue self-repair occurs through the finely timed activation of resident muscle stem cells (MuSC). Following perturbation, MuSC exit quiescence, undergo myogenic commitment, and differentiate to regenerate the injured muscle. This process is coordinated by signals present in the tissue microenvironment, however the precise mechanisms by which the microenvironment regulates MuSC activation are still poorly understood. Here, we identified Tenascin-C (TnC), an extracellular matrix (ECM) glycoprotein, as a key player in promoting of MuSC self-renewal and function. We show that fibro-adipogenic progenitors (FAPs) are the primary cellular source of TnC during muscle repair, and that MuSC sense TnC signaling through cell the surface receptor Annexin A2. We provide in vivo evidence that TnC is required for efficient muscle repair, as mice lacking TnC exhibit a regeneration phenotype of premature aging. We propose that the decline of TnC in physiological aging contributes to inefficient muscle regeneration in aged muscle. Taken together, our results highlight the pivotal role of TnC signaling during muscle repair in healthy and aging skeletal muscle.
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Affiliation(s)
- Mafalda Loreti
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Rd, La Jolla, CA 92037, USA
- Current affiliation: J&J, 3880 Murphy Canyon Rd, San Diego, CA 92123, USA
| | - Alessandra Cecchini
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Collin D. Kaufman
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Cedomir Stamenkovic
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Alma Renero
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Rd, La Jolla, CA 92037, USA
- Current affiliation: University of California San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA
| | - Chiara Nicoletti
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Anais Kervadec
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Rd, La Jolla, CA 92037, USA
- Current affiliation: Avidity Biosciences, Inc., 10578 Science Center Drive Suite 125, San Diego, CA 92121, USA
| | - Gabriele Guarnaccia
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Daphne Mayer
- Rice University, 6100 Main St, Huston, TX 77005, USA
| | - Alexandre Colas
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Pier Lorenzo Puri
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Rd, La Jolla, CA 92037, USA
| | - Alessandra Sacco
- Development, Aging and Regeneration Program, Sanford Burnham Prebys Medical Discovery Institute, 10901 N Torrey Pines Rd, La Jolla, CA 92037, USA
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24
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Ye L, Zhao J, Xiao Z, Gu W, Liu X, Ajuyo NMC, Min Y, Pei Y, Wang D. Integrative Human Genetic and Cellular Analysis of the Pathophysiological Roles of AnxA2 in Alzheimer's Disease. Antioxidants (Basel) 2024; 13:1274. [PMID: 39456526 PMCID: PMC11504888 DOI: 10.3390/antiox13101274] [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: 09/02/2024] [Revised: 10/14/2024] [Accepted: 10/17/2024] [Indexed: 10/28/2024] Open
Abstract
Alzheimer's disease (AD) is an intractable and progressive neurodegenerative disease. Amyloid beta (Aβ) aggregation is the hallmark of AD. Aβ induces neurotoxicity through a variety of mechanisms, including interacting with membrane receptors to alter downstream signaling, damaging cellular or organelle membranes, interfering with protein degradation and synthesis, and inducing an excessive immune-inflammatory response, all of which lead to neuronal death and other pathological changes associated with AD. In this study, we extracted gene expression profiles from the GSE5281 and GSE97760 microarray datasets in the GEO (Gene Expression Omnibus) database, as well as from the Human Gene Database. We identified differentially expressed genes in the brain tissues of AD patients and healthy persons. Through GO, KEGG, and ROC analyses, annexin A2 (AnxA2) was identified as a putative target gene. Notably, accumulating evidence suggests that intracellular AnxA2 is a key regulator in various biological processes, including endocytosis, transmembrane transport, neuroinflammation, and apoptosis. Thus, we conducted a series of cell biology experiments to explore the biological function of AnxA2 in AD. The results indicate that AnxA2 gene knockdown primarily affects oxidative phosphorylation, cell cycle, AD, protein processing in the endoplasmic reticulum, SNARE interactions in vesicular transport, and autophagy. In SH-SY5Y cells secreting Aβ42, AnxA2 gene knockdown exacerbated Aβ42-induced cytotoxicity, including cell death, intracellular ROS levels, and neuronal senescence, altered cell cycle, and reduced ATP levels, suggesting its critical role in mitochondrial function maintenance. AnxA2 gene knockdown also exacerbated the inhibitory effect of Aβ42 on cell migration. AnxA2 overexpression reduced the inflammatory response induced by Aβ42, while its absence increased pro-inflammatory and decreased anti-inflammatory responses. Furthermore, AnxA2 gene knockdown facilitated apoptosis and decreased autophagy. These results indicated potential pathophysiological roles of AnxA2 in AD.
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Affiliation(s)
- Lianmeng Ye
- Laboratory of Biopharmaceuticals and Molecular Pharmacology, Key Laboratory of Tropical Biological Resources of the Ministry of Education of China, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China
- One Health Cooperative Innovation Center, Hainan University, Haikou 570228, China
- Department of Biotechnology, School of Life and Health Sciences, Hainan University, Haikou 570228, China
| | - Jiazheng Zhao
- Laboratory of Biopharmaceuticals and Molecular Pharmacology, Key Laboratory of Tropical Biological Resources of the Ministry of Education of China, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China
- One Health Cooperative Innovation Center, Hainan University, Haikou 570228, China
- Department of Biotechnology, School of Life and Health Sciences, Hainan University, Haikou 570228, China
| | - Zhengpan Xiao
- Laboratory of Biopharmaceuticals and Molecular Pharmacology, Key Laboratory of Tropical Biological Resources of the Ministry of Education of China, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China
- One Health Cooperative Innovation Center, Hainan University, Haikou 570228, China
- Department of Biotechnology, School of Life and Health Sciences, Hainan University, Haikou 570228, China
| | - Wenyu Gu
- Laboratory of Biopharmaceuticals and Molecular Pharmacology, Key Laboratory of Tropical Biological Resources of the Ministry of Education of China, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China
- One Health Cooperative Innovation Center, Hainan University, Haikou 570228, China
- Department of Biotechnology, School of Life and Health Sciences, Hainan University, Haikou 570228, China
| | - Xiaoxuan Liu
- Laboratory of Biopharmaceuticals and Molecular Pharmacology, Key Laboratory of Tropical Biological Resources of the Ministry of Education of China, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China
- One Health Cooperative Innovation Center, Hainan University, Haikou 570228, China
- Department of Biotechnology, School of Life and Health Sciences, Hainan University, Haikou 570228, China
| | - Nuela Manka’a Che Ajuyo
- Laboratory of Biopharmaceuticals and Molecular Pharmacology, Key Laboratory of Tropical Biological Resources of the Ministry of Education of China, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China
- One Health Cooperative Innovation Center, Hainan University, Haikou 570228, China
| | - Yi Min
- One Health Cooperative Innovation Center, Hainan University, Haikou 570228, China
- Department of Biotechnology, School of Life and Health Sciences, Hainan University, Haikou 570228, China
| | - Yechun Pei
- One Health Cooperative Innovation Center, Hainan University, Haikou 570228, China
- Department of Biotechnology, School of Life and Health Sciences, Hainan University, Haikou 570228, China
| | - Dayong Wang
- Laboratory of Biopharmaceuticals and Molecular Pharmacology, Key Laboratory of Tropical Biological Resources of the Ministry of Education of China, School of Pharmaceutical Sciences, Hainan University, Haikou 570228, China
- One Health Cooperative Innovation Center, Hainan University, Haikou 570228, China
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Xu P, Li K, Yuan J, Zhao J, Pan H, Pan C, Xiong W, Tan J, Li T, Huang G, Chen X, Miao X, He D, Cheng X. "Dictionary of immune responses" reveals the critical role of monocytes and the core target IRF7 in intervertebral disc degeneration. Front Immunol 2024; 15:1465126. [PMID: 39483476 PMCID: PMC11524831 DOI: 10.3389/fimmu.2024.1465126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2024] [Accepted: 09/25/2024] [Indexed: 11/03/2024] Open
Abstract
Background Intervertebral disc degeneration (IDD) is widely regarded as the primary contributor to low back pain(LBP). As an immune-privileged organ, upon the onset of IDD, various components of the nucleus pulposus (NP) are exposed to the host's immune system, accumulating cytokines. Cytokines facilitate intercellular communication within the immune system, induce immune cells polarisation, and exacerbate oxidative stress in IDD. Methods Machine learning was used to identify crucial immune cells. Subsequently, Immune Response Enrichment Analysis (IREA) was conducted on the key immune cells to determine their cytokine responses and polarisation states in IDD. "CellChat" package facilitated the analysis of cell-cell communication. Differential gene expression analysis, PPI network, GO and KEGG pathway enrichment analysis, GSVA, co-expressed gene analysis and key gene-related networks were also performed to explore hub genes and their associated functions. Lastly, the differential expression and functions of key genes were validated through in vitro and in vivo experiments. Results Through multiple machine learning methods, monocytes were identified as the crucial immune cells in IDD, exhibiting significant differentiation capacity. IREA revealed that monocytes in IDD polarize into an IFN-a1 and IFN-b enriched Mono-a state, potentially intensifying inflammation. Cell-cell communication analysis uncovered alteration in ANNEXIN pathway and a reduction in CXCL signaling between macrophages and monocytes, suggesting immune response dysregulation. Furthermore, ten algorithms identified three hub genes. Both experiments conducted in vitro and in vivo have conclusively shown that IRF7 serves as a crucial target for the treatment of IDD, and its knockdown alleviates IDD. Eight small-molecule drugs were predicted to have therapeutic potential for IDD. Conclusion These findings offer a multidimensional understanding of the pathogenesis of IDD, pinpointing monocytes and key genes as potential diagnostic and therapeutic targets. They provide novel insights into potential diagnostic and therapeutic targets for IDD.
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Affiliation(s)
- Peichuan Xu
- Department of Orthopaedics, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Spine and Spinal Cord Disease, Nanchang University, Nanchang, China
| | - Kaihui Li
- Department of Stomatology, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Jinghong Yuan
- Department of Orthopaedics, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Spine and Spinal Cord Disease, Nanchang University, Nanchang, China
| | - Jiangminghao Zhao
- Department of Orthopaedics, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Spine and Spinal Cord Disease, Nanchang University, Nanchang, China
| | - Huajun Pan
- Department of Orthopaedics, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Spine and Spinal Cord Disease, Nanchang University, Nanchang, China
| | - Chongzhi Pan
- Department of Orthopaedics, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Spine and Spinal Cord Disease, Nanchang University, Nanchang, China
| | - Wei Xiong
- Department of Orthopaedics, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Spine and Spinal Cord Disease, Nanchang University, Nanchang, China
| | - Jianye Tan
- Department of Orthopaedics, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Spine and Spinal Cord Disease, Nanchang University, Nanchang, China
| | - Tao Li
- Department of Orthopaedics, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Spine and Spinal Cord Disease, Nanchang University, Nanchang, China
| | - Guanfeng Huang
- Department of Orthopaedics, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Spine and Spinal Cord Disease, Nanchang University, Nanchang, China
| | - Xiaolong Chen
- Department of Orthopaedics, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Spine and Spinal Cord Disease, Nanchang University, Nanchang, China
| | - Xinxin Miao
- Department of Orthopaedics, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Dingwen He
- Department of Orthopaedics, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
| | - Xigao Cheng
- Department of Orthopaedics, The Second Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, China
- Jiangxi Provincial Key Laboratory of Spine and Spinal Cord Disease, Nanchang University, Nanchang, China
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Pajonczyk D, Sternschulte MF, Soehnlein O, Bermudez M, Raabe CA, Rescher U. Comparative analysis of formyl peptide receptor 1 and formyl peptide receptor 2 reveals shared and preserved signalling profiles. Br J Pharmacol 2024. [PMID: 39294930 DOI: 10.1111/bph.17334] [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: 02/19/2024] [Revised: 07/03/2024] [Accepted: 08/06/2024] [Indexed: 09/21/2024] Open
Abstract
BACKGROUND AND PURPOSE The pattern recognition receptors, formyl peptide receptors, FPR1 and FPR2, are G protein-coupled receptors that recognize many different pathogen- and host-derived ligands. While FPR1 conveys pro-inflammatory signals, FPR2 is linked with pro-resolving outcomes. To analyse how the two very similar FPRs exert opposite effects in modulating inflammatory responses despite their high homology, a shared expression profile on immune cells and an overlapping ligand repertoire, we questioned whether the signalling profile differs between these two receptors. EXPERIMENTAL APPROACH We deduced EC50 and Emax values for synthetic, pathogen-derived and host-derived peptide agonists for both FPR1 and FPR2 and analysed them within the framework of biased signalling. We furthermore investigated whether FPR isoform-specific agonists affect the ex vivo lifespan of human neutrophils. KEY RESULTS The FPRs share a core signature across signalling pathways. Whereas the synthetic WKYMVm and formylated peptides acted as potent agonists at FPR1, and at FPR2, only WKYMVm was a full agonist. Natural FPR2 agonists, irrespective of N-terminal formylation, displayed lower activity ratios, suggesting an underutilized signalling potential of this receptor. FPR2 agonism did not counteract LPS-induced neutrophil survival, indicating that FPR2 activation per se is not linked with a pro-resolving function. CONCLUSION AND IMPLICATIONS Activation of FPR1 and FPR2 by a representative agonist panel revealed a lack of a receptor-specific signalling texture, challenging assumptions about distinct inflammatory profiles linked to specific receptor isoforms, signalling patterns or agonist classes. These conclusions are restricted to the specific agonists and signalling pathways examined.
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Affiliation(s)
- Denise Pajonczyk
- Research Group Cellular Biochemistry - Regulatory Mechanisms of Inflammation, Institute of Molecular Virology, Center of Molecular Biology of Inflammation and "Cells in Motion" Interfaculty Centre, University of Muenster, Muenster, Germany
| | - Merle F Sternschulte
- Research Group Cellular Biochemistry - Regulatory Mechanisms of Inflammation, Institute of Molecular Virology, Center of Molecular Biology of Inflammation and "Cells in Motion" Interfaculty Centre, University of Muenster, Muenster, Germany
- Institute of Experimental Pathology, Center of Molecular Biology of Inflammation, University of Muenster, Muenster, Germany
| | - Oliver Soehnlein
- Institute of Experimental Pathology, Center of Molecular Biology of Inflammation, University of Muenster, Muenster, Germany
| | - Marcel Bermudez
- Institute of Pharmaceutical and Medicinal Chemistry, University of Muenster, Muenster, Germany
| | - Carsten A Raabe
- Research Group Cellular Biochemistry - Regulatory Mechanisms of Inflammation, Institute of Molecular Virology, Center of Molecular Biology of Inflammation and "Cells in Motion" Interfaculty Centre, University of Muenster, Muenster, Germany
| | - Ursula Rescher
- Research Group Cellular Biochemistry - Regulatory Mechanisms of Inflammation, Institute of Molecular Virology, Center of Molecular Biology of Inflammation and "Cells in Motion" Interfaculty Centre, University of Muenster, Muenster, Germany
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Qin W, Deng Y, Ren H, Liu Y, Liu L, Liu W, Zhao Y, Li C, Yang Z. Exploring the anticancer mechanism of cardiac glycosides using proteome integral solubility alteration approach. Cancer Med 2024; 13:e70252. [PMID: 39350574 PMCID: PMC11442762 DOI: 10.1002/cam4.70252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2024] [Revised: 09/08/2024] [Accepted: 09/11/2024] [Indexed: 10/04/2024] Open
Abstract
BACKGROUND AND AIMS Cardiac glycosides (CGs), traditionally used for heart failure, have shown potential as anti-cancer agents. This study aims to explore their multifaceted mechanisms in cancer cell biology using proteome integral solubility alteration (PISA), focusing on the interaction with key proteins implicated in cellular metabolism and mitochondrial function. METHODS We conducted lysate-based and intact-cell PISA assays on cancer cells treated with CGs (Digoxin, Digitoxin, Ouabain) to analyze protein solubility changes. This was followed by mass spectrometric analysis and bioinformatics to identify differentially soluble proteins (DSPs). Molecular docking simulations were performed to predict protein-CG interactions. Public data including gene expression changes upon CG treatment were re-analyzed for validation. RESULTS The PISA assays revealed CGs' broad-spectrum interactions, particularly affecting proteins like PKM2, ANXA2, SLC16A1, GOT2 and GLUD1. Molecular docking confirmed stable interactions between CGs and these DSPs. Re-analysis of public data supported the impact of CGs on cancer metabolism and cell signaling pathways. CONCLUSION Our findings suggest that CGs could be repurposed for cancer therapy by modulating cellular processes. The PISA data provide insights into the polypharmacological effects of CGs, warranting further exploration of their mechanisms and clinical potential.
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Affiliation(s)
- Wenjie Qin
- Department of PharmacyThe First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital)ChangshaChina
| | - Yinhua Deng
- Department of PharmacyThe First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital)ChangshaChina
| | - Huan Ren
- Department of PharmacyThe First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital)ChangshaChina
| | - Yanling Liu
- Department of PharmacyThe First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital)ChangshaChina
| | - Ling Liu
- Department of PharmacyThe First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital)ChangshaChina
| | - Wenhui Liu
- Department of PharmacyThe Second Xiangya Hospital, Central South UniversityChangshaChina
- Institute of Clinical Pharmacy, Central South UniversityChangshaChina
| | - Yuxi Zhao
- Shenzhen Wininnovate Bio‐Tech Co., LtdShenzhenChina
| | - Chen Li
- Department of PharmacyThe First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital)ChangshaChina
| | - Zhiling Yang
- Department of PharmacyThe First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital)ChangshaChina
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Vélez-López O, Carrasquillo-Carrión K, Cantres-Rosario YM, Machín-Martínez E, Álvarez-Ríos ME, Roche-Lima A, Tosado-Rodríguez EL, Meléndez LM. Analysis of Sigma-1 Receptor Antagonist BD1047 Effect on Upregulating Proteins in HIV-1-Infected Macrophages Exposed to Cocaine Using Quantitative Proteomics. Biomedicines 2024; 12:1934. [PMID: 39335448 PMCID: PMC11428496 DOI: 10.3390/biomedicines12091934] [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: 06/20/2024] [Revised: 08/08/2024] [Accepted: 08/10/2024] [Indexed: 09/30/2024] Open
Abstract
HIV-1 infects monocyte-derived macrophages (MDM) that migrate into the brain and secrete virus and neurotoxic molecules, including cathepsin B (CATB), causing cognitive dysfunction. Cocaine potentiates CATB secretion and neurotoxicity in HIV-infected MDM. Pretreatment with BD1047, a sigma-1 receptor antagonist, before cocaine exposure reduces HIV-1, CATB secretion, and neuronal apoptosis. We aimed to elucidate the intracellular pathways modulated by BD1047 in HIV-infected MDM exposed to cocaine. We hypothesized that the Sig1R antagonist BD1047, prior to cocaine, significantly deregulates proteins and pathways involved in HIV-1 replication and CATB secretion that lead to neurotoxicity. MDM culture lysates from HIV-1-infected women treated with BD1047 before cocaine were compared with untreated controls using TMT quantitative proteomics, bioinformatics, Lima statistics, and pathway analyses. Results demonstrate that pretreatment with BD1047 before cocaine dysregulated eighty (80) proteins when compared with the infected cocaine group. We found fifteen (15) proteins related to HIV-1 infection, CATB, and mitochondrial function. Upregulated proteins were related to oxidative phosphorylation (SLC25A-31), mitochondria (ATP5PD), ion transport (VDAC2-3), endoplasmic reticulum transport (PHB, TMED10, CANX), and cytoskeleton remodeling (TUB1A-C, ANXA1). BD1047 treatment protects HIV-1-infected MDM exposed to cocaine by upregulating proteins that reduce mitochondrial damage, ER transport, and exocytosis associated with CATB-induced neurotoxicity.
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Affiliation(s)
- Omar Vélez-López
- Department of Microbiology and Medical Zoology, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936, USA;
| | - Kelvin Carrasquillo-Carrión
- Integrated Informatics, Center for Collaborative Research in Health Disparities, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00934, USA; (K.C.-C.); (A.R.-L.); (E.L.T.-R.)
| | - Yadira M. Cantres-Rosario
- Translational Proteomics, Center for Collaborative Research in Health Disparities, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00921, USA;
| | - Eraysy Machín-Martínez
- Department of Biology, University of Puerto Rico, Río Piedras Campus, San Juan, PR 00921, USA; (E.M.-M.); (M.E.Á.-R.)
| | - Manuel E. Álvarez-Ríos
- Department of Biology, University of Puerto Rico, Río Piedras Campus, San Juan, PR 00921, USA; (E.M.-M.); (M.E.Á.-R.)
| | - Abiel Roche-Lima
- Integrated Informatics, Center for Collaborative Research in Health Disparities, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00934, USA; (K.C.-C.); (A.R.-L.); (E.L.T.-R.)
| | - Eduardo L. Tosado-Rodríguez
- Integrated Informatics, Center for Collaborative Research in Health Disparities, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00934, USA; (K.C.-C.); (A.R.-L.); (E.L.T.-R.)
| | - Loyda M. Meléndez
- Department of Microbiology and Medical Zoology, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00936, USA;
- Translational Proteomics, Center for Collaborative Research in Health Disparities, University of Puerto Rico, Medical Sciences Campus, San Juan, PR 00921, USA;
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Frostegård A, Haegerstrand A. New Therapeutic Strategies in Retinal Vascular Diseases: A Lipid Target, Phosphatidylserine, and Annexin A5-A Future Theranostic Pairing in Ophthalmology. Pharmaceuticals (Basel) 2024; 17:979. [PMID: 39204083 PMCID: PMC11357257 DOI: 10.3390/ph17080979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 07/05/2024] [Accepted: 07/16/2024] [Indexed: 09/03/2024] Open
Abstract
Despite progress in the management of patients with retinal vascular and degenerative diseases, there is still an unmet clinical need for safe and effective therapeutic options with novel mechanisms of action. Recent mechanistic insights into the pathogenesis of retinal diseases with a prominent vascular component, such as retinal vein occlusion (RVO), diabetic retinopathy (DR) and wet age-related macular degeneration (AMD), may open up new treatment paradigms that reach beyond the inhibition of vascular endothelial growth factor (VEGF). Phosphatidylserine (PS) is a novel lipid target that is linked to the pathophysiology of several human diseases, including retinal diseases. PS acts upstream of VEGF and complement signaling pathways. Annexin A5 is a protein that targets PS and inhibits PS signaling. This review explores the current understanding of the potential roles of PS as a target and Annexin A5 as a therapeutic. The clinical development status of Annexin A5 as a therapeutic and the potential utility of PS-Annexin A5 as a theranostic pairing in retinal vascular conditions in particular is described.
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Affiliation(s)
- Anna Frostegård
- Annexin Pharmaceuticals AB, Kammakargatan 48, S-111 60 Stockholm, Sweden
- Unit of Immunology and Chronic Disease, IMM, Karolinska Institute, S-171 77 Stockholm, Sweden
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