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Azizoglu ZB, Babayeva R, Haskologlu ZS, Acar MB, Ayaz-Guner S, Okus FZ, Alsavaf MB, Can S, Basaran KE, Canatan MF, Ozcan A, Erkmen H, Leblebici CB, Yilmaz E, Karakukcu M, Kose M, Canoz O, Özen A, Karakoc-Aydiner E, Ceylaner S, Gümüş G, Per H, Gumus H, Canatan H, Ozcan S, Dogu F, Ikinciogullari A, Unal E, Baris S, Eken A. DIAPH1-Deficiency is Associated with Major T, NK and ILC Defects in Humans. J Clin Immunol 2024; 44:175. [PMID: 39120629 PMCID: PMC11315734 DOI: 10.1007/s10875-024-01777-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Accepted: 07/26/2024] [Indexed: 08/10/2024]
Abstract
Loss of function mutations in Diaphanous related formin 1 (DIAPH1) are associated with seizures, cortical blindness, and microcephaly syndrome (SCBMS) and are recently linked to combined immunodeficiency. However, the extent of defects in T and innate lymphoid cells (ILCs) remain unexplored. Herein, we characterized the primary T, natural killer (NK) and helper ILCs of six patients carrying two novel loss of function mutation in DIAPH1 and Jurkat cells after DIAPH1 knockdown. Mutations were identified by whole exome sequencing. T-cell immunophenotyping, proliferation, migration, cytokine signaling, survival, and NK cell cytotoxicity were studied via flow cytometry-based assays, confocal microscopy, and real-time qPCR. CD4+ T cell proteome was analyzed by mass spectrometry. p.R351* and p.R322*variants led to a significant reduction in the DIAPH1 mRNA and protein levels. DIAPH1-deficient T cells showed proliferation, activation, as well as TCR-mediated signaling defects. DIAPH1-deficient PBMCs also displayed impaired transwell migration, defective STAT5 phosphorylation in response to IL-2, IL-7 and IL-15. In vitro generation/expansion of Treg cells from naïve T cells was significantly reduced. shRNA-mediated silencing of DIAPH1 in Jurkat cells reduced DIAPH1 protein level and inhibited T cell proliferation and IL-2/STAT5 axis. Additionally, NK cells from patients had diminished cytotoxic activity, function and IL-2/STAT5 axis. Lastly, DIAPH1-deficient patients' peripheral blood contained dramatically reduced numbers of all helper ILC subsets. DIAPH1 deficiency results in major functional defects in T, NK cells and helper ILCs underlining the critical role of formin DIAPH1 in the biology of those cell subsets.
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Affiliation(s)
- Zehra Busra Azizoglu
- Department of Medical Biology, Faculty of Medicine, Erciyes University, Kayseri, 38039, Türkiye
- Genome and Stem Cell Center, Kayseri, 38039, Türkiye
| | - Royala Babayeva
- The Istanbul Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, The Isil Berat Barlan Center for Translational Medicine, Division of Pediatric Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Marmara University, Istanbul, Türkiye
| | - Zehra Sule Haskologlu
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Ankara University, Ankara, Türkiye
| | | | - Serife Ayaz-Guner
- Department of Molecular Biology and Genetics, Izmir Institute of Technology, Izmir, Türkiye
| | - Fatma Zehra Okus
- Department of Medical Biology, Faculty of Medicine, Erciyes University, Kayseri, 38039, Türkiye
| | | | - Salim Can
- The Istanbul Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, The Isil Berat Barlan Center for Translational Medicine, Division of Pediatric Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Marmara University, Istanbul, Türkiye
| | - Kemal Erdem Basaran
- Genome and Stem Cell Center, Kayseri, 38039, Türkiye
- Department of Physiology, Faculty of Medicine, Erciyes University, Kayseri, 38039, Turkey
| | | | - Alper Ozcan
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Faculty of Medicine, Erciyes University, Kayseri, 38039, Turkey
| | - Hasret Erkmen
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Ankara University, Ankara, Türkiye
| | - Can Berk Leblebici
- Department of Medical Genetics, Ankara University Faculty of Medicine, Ankara, Türkiye
| | - Ebru Yilmaz
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Faculty of Medicine, Erciyes University, Kayseri, 38039, Turkey
| | - Musa Karakukcu
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Faculty of Medicine, Erciyes University, Kayseri, 38039, Turkey
| | - Mehmet Kose
- Division of Pediatric Pulmonology, Department of Pediatrics, Faculty of Medicine, Erciyes University, Kayseri, 38039, Türkiye
| | - Ozlem Canoz
- Department of Pathology, Faculty of Medicine, Erciyes University, 38039, Kayseri, Türkiye
| | - Ahmet Özen
- The Istanbul Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, The Isil Berat Barlan Center for Translational Medicine, Division of Pediatric Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Marmara University, Istanbul, Türkiye
| | - Elif Karakoc-Aydiner
- The Istanbul Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, The Isil Berat Barlan Center for Translational Medicine, Division of Pediatric Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Marmara University, Istanbul, Türkiye
| | - Serdar Ceylaner
- Intergen, Genetic, Rare and Undiagnosed Diseases, Diagnosis and Research Center, Ankara, Türkiye
| | - Gülsüm Gümüş
- Division of Pediatric Radiology, Department of Radiology, Erciyes University Faculty of Medicine, Kayseri, Türkiye
| | - Huseyin Per
- Division of Pediatric Neurology, Department of Pediatrics, Faculty of Medicine, Erciyes University, Kayseri, 38039, Türkiye
| | - Hakan Gumus
- Division of Pediatric Neurology, Department of Pediatrics, Faculty of Medicine, Erciyes University, Kayseri, 38039, Türkiye
| | - Halit Canatan
- Department of Medical Biology, Faculty of Medicine, Erciyes University, Kayseri, 38039, Türkiye
- Genome and Stem Cell Center, Kayseri, 38039, Türkiye
| | - Servet Ozcan
- Genome and Stem Cell Center, Kayseri, 38039, Türkiye
- Department of Biology, Faculty of Science, Erciyes University, Kayseri, 38039, Türkiye
| | - Figen Dogu
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Ankara University, Ankara, Türkiye
| | - Aydan Ikinciogullari
- Division of Pediatric Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Ankara University, Ankara, Türkiye
| | - Ekrem Unal
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, Faculty of Medicine, Erciyes University, Kayseri, 38039, Turkey.
- School of Health Sciences, Hasan Kalyoncu University, Gaziantep, Türkiye.
- Medical Point Hospital, Pediatric Hematology Oncology and BMT Unit, Gaziantep, Türkiye.
| | - Safa Baris
- The Istanbul Jeffrey Modell Diagnostic Center for Primary Immunodeficiency Diseases, The Isil Berat Barlan Center for Translational Medicine, Division of Pediatric Allergy and Immunology, Department of Pediatrics, Faculty of Medicine, Marmara University, Istanbul, Türkiye
| | - Ahmet Eken
- Department of Medical Biology, Faculty of Medicine, Erciyes University, Kayseri, 38039, Türkiye.
- Genome and Stem Cell Center, Kayseri, 38039, Türkiye.
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Ge R, Zhang L, Yang Y, Chen K, Li C. Arpc2 integrates ecdysone and juvenile hormone metabolism to influence metamorphosis and reproduction in Tribolium castaneum. PEST MANAGEMENT SCIENCE 2024; 80:3734-3742. [PMID: 38477435 DOI: 10.1002/ps.8076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/07/2023] [Revised: 02/29/2024] [Accepted: 03/13/2024] [Indexed: 03/14/2024]
Abstract
BACKGROUND Actin-related protein 2/3 complex regulates actin polymerization and the formation of branched actin networks. However, the function and evolutionary relationship of this complex subunit 2 (Arpc2) has been poorly understood in insects. RESULTS To address these issues, we performed comprehensive analysis of Arpc2 in Tribolium castaneum. Phylogenetic analysis revealed that Arpc2 was originated from one ancestral gene in animals but evolved independently between vertebrates and insects after species differentiation. T. castaneum Arpc2 has a 906-bp coding sequence and consists of 4 exons. Arpc2 transcripts were abundantly detected in embryos and pupae but less so in larvae and adults, while it had high expression in the gut, fat body and head but low expression in the epidermis of late-stage larvae. Knockdown of it at the late larval stage inhibited the pupation and resulted in arrested larvae. Silencing it in 1-day pupae impaired eclosion, which caused adult wings to fail to close. Injection of Arpc2 dsRNAs into 5-day pupae made adults have smaller testis and ovary and could not lay eggs. The expression of vitellogenin 1 (Vg1), Vg2 and Vg receptor (VgR) was downregulated after knocking down Arpc2 5 days post-adult emergence. Arpc2 silencing reduced 20-hydroxyecdysone titer by affecting the enzymes of its biosynthesis and catabolism but increased juvenile biosynthesis via upregulating JHAMT3 expression. CONCLUSION Our results indicate that Arpc2 is associated with the metamorphosis and reproduction by integrating ecdysone and juvenile hormone metabolism in T. castaneum. This study provides theoretical basis for developing Arpc2 as a potential RNA interference target for pest control. © 2024 Society of Chemical Industry.
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Affiliation(s)
- Runting Ge
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Ling Zhang
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Yanhua Yang
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Keping Chen
- School of Life Sciences, Jiangsu University, Zhenjiang, China
| | - Chengjun Li
- School of Life Sciences, Jiangsu University, Zhenjiang, China
- Jiangsu Key Laboratory for Biodiversity and Biotechnology, College of Life Sciences, Nanjing Normal University, Nanjing, China
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Otsuka S, Dutta D, Wu CJ, Alam MS, Ashwell JD. Calcineurin is an adaptor required for assembly of the TCR signaling complex. Cell Rep 2024; 43:114568. [PMID: 39088318 DOI: 10.1016/j.celrep.2024.114568] [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: 03/26/2024] [Revised: 06/25/2024] [Accepted: 07/17/2024] [Indexed: 08/03/2024] Open
Abstract
The serine/threonine phosphatase calcineurin is a component of the T cell receptor (TCR) signalosome, where it promotes T cell activation by dephosphorylating LckS59. Using small interfering RNA (siRNA)-mediated knockdown and CRISPR-Cas9-targeted genetic disruption of the calcineurin A chain α and β isoforms, we find that calcineurin also functions as an adaptor in TCR-signaled human T cells. Unlike inhibition of its phosphatase activity, in the absence of calcineurin A, TCR signaling results in attenuated actin rearrangement, markedly reduced TCR-Lck microcluster formation and recruitment of the adaptor RhoH, and diminished phosphorylation of critical targets downstream of Lck such as TCRζ and ZAP-70. Reconstitution of deficient T cells with either calcineurin Aα or Aβ restores TCR microcluster formation and signaling, as does reconstitution with a phosphatase-inactive Aα chain. These results assign a non-enzymatic adaptor function to calcineurin in the formation and stabilization of a functional TCR signaling complex.
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Affiliation(s)
- Shizuka Otsuka
- Laboratory of Immune Cell Biology, National Cancer Institute, Center for Cancer Research, National Institutes of Health, Bethesda, MD 20892, USA
| | - Debjani Dutta
- Laboratory of Immune Cell Biology, National Cancer Institute, Center for Cancer Research, National Institutes of Health, Bethesda, MD 20892, USA
| | - Chuan-Jin Wu
- Laboratory of Immune Cell Biology, National Cancer Institute, Center for Cancer Research, National Institutes of Health, Bethesda, MD 20892, USA
| | - Muhammad S Alam
- Laboratory of Immune Cell Biology, National Cancer Institute, Center for Cancer Research, National Institutes of Health, Bethesda, MD 20892, USA
| | - Jonathan D Ashwell
- Laboratory of Immune Cell Biology, National Cancer Institute, Center for Cancer Research, National Institutes of Health, Bethesda, MD 20892, USA.
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Phat NK, Tien NTN, Anh NK, Yen NTH, Lee YA, Trinh HKT, Le KM, Ahn S, Cho YS, Park S, Kim DH, Long NP, Shin JG. Alterations of lipid-related genes during anti-tuberculosis treatment: insights into host immune responses and potential transcriptional biomarkers. Front Immunol 2023; 14:1210372. [PMID: 38022579 PMCID: PMC10644770 DOI: 10.3389/fimmu.2023.1210372] [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: 04/22/2023] [Accepted: 10/18/2023] [Indexed: 12/01/2023] Open
Abstract
Background The optimal diagnosis and treatment of tuberculosis (TB) are challenging due to underdiagnosis and inadequate treatment monitoring. Lipid-related genes are crucial components of the host immune response in TB. However, their dynamic expression and potential usefulness for monitoring response to anti-TB treatment are unclear. Methodology In the present study, we used a targeted, knowledge-based approach to investigate the expression of lipid-related genes during anti-TB treatment and their potential use as biomarkers of treatment response. Results and discussion The expression levels of 10 genes (ARPC5, ACSL4, PLD4, LIPA, CHMP2B, RAB5A, GABARAPL2, PLA2G4A, MBOAT2, and MBOAT1) were significantly altered during standard anti-TB treatment. We evaluated the potential usefulness of this 10-lipid-gene signature for TB diagnosis and treatment monitoring in various clinical scenarios across multiple populations. We also compared this signature with other transcriptomic signatures. The 10-lipid-gene signature could distinguish patients with TB from those with latent tuberculosis infection and non-TB controls (area under the receiver operating characteristic curve > 0.7 for most cases); it could also be useful for monitoring response to anti-TB treatment. Although the performance of the new signature was not better than that of previous signatures (i.e., RISK6, Sambarey10, Long10), our results suggest the usefulness of metabolism-centric biomarkers. Conclusions Lipid-related genes play significant roles in TB pathophysiology and host immune responses. Furthermore, transcriptomic signatures related to the immune response and lipid-related gene may be useful for TB diagnosis and treatment monitoring.
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Affiliation(s)
- Nguyen Ky Phat
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea
| | - Nguyen Tran Nam Tien
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea
| | - Nguyen Ky Anh
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea
| | - Nguyen Thi Hai Yen
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea
| | - Yoon Ah Lee
- School of Mathematics, Statistics and Data Science, Sungshin Women's University, Seoul, Republic of Korea
| | - Hoang Kim Tu Trinh
- Center for Molecular Biomedicine, University of Medicine and Pharmacy at Ho Chi Minh, Ho Chi Minh, Vietnam
| | - Kieu-Minh Le
- Center for Molecular Biomedicine, University of Medicine and Pharmacy at Ho Chi Minh, Ho Chi Minh, Vietnam
| | - Sangzin Ahn
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea
| | - Yong-Soon Cho
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea
| | - Seongoh Park
- School of Mathematics, Statistics and Data Science, Sungshin Women's University, Seoul, Republic of Korea
- Data Science Center, Sungshin Women's University, Seoul, Republic of Korea
| | - Dong Hyun Kim
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea
| | - Nguyen Phuoc Long
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea
| | - Jae-Gook Shin
- Department of Pharmacology and PharmacoGenomics Research Center, Inje University College of Medicine, Busan, Republic of Korea
- Center for Personalized Precision Medicine of Tuberculosis, Inje University College of Medicine, Busan, Republic of Korea
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Wang X, Sun L, Yang B, Li W, Zhang C, Yang X, Sun Y, Shen X, Gao Y, Ju B, Gao Y, Liu D, Song J, Jia X, Su Y, Jiao A, Liu H, Zhang L, Lan He, Lei L, Chen W, Zhang B. Zfp335 establishes eTreg lineage and neonatal immune tolerance by targeting Hadha-mediated fatty acid oxidation. J Clin Invest 2023; 133:e166628. [PMID: 37843279 PMCID: PMC10575732 DOI: 10.1172/jci166628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 08/15/2023] [Indexed: 10/17/2023] Open
Abstract
Regulatory T cells (Tregs) are instrumental in maintaining immune tolerance and preventing destructive autoimmunity, but how heterogeneous Treg populations are established remains largely unknown. Here, we show that Zfp335 deletion in Tregs failed to differentiate into effector Tregs (eTregs) and lose Treg-suppressive function and that KO mice exhibited early-onset lethal autoimmune inflammation with unrestricted activation of conventional T cells. Single-cell RNA-Seq analyses revealed that Zfp335-deficient Tregs lacked a eTreg population and showed dramatic accumulation of a dysfunctional Treg subset. Mechanistically, Zfp335-deficient Tregs displayed reduced oxidative phosphorylation and dysfunctional mitochondrial activity. Further studies revealed that Zfp335 controlled eTreg differentiation by regulating fatty acid oxidation (FAO) through direct targeting of the FAO enzyme Hadha. Importantly, we demonstrate a positive correlation between ZNF335 and HADHA expression in human eTregs. Our findings reveal that Zfp335 controls FAO-driven eTreg differentiation to establish immune tolerance.
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Affiliation(s)
- Xin Wang
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Lina Sun
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Biao Yang
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Wenhua Li
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Cangang Zhang
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Xiaofeng Yang
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
- Key Laboratory of Environment and Genes Related to Diseases (Xi’an Jiaotong University), Ministry of Education, Xi’an, Shaanxi, China
- Xi’an Key Laboratory of Immune-Related Diseases, Xi’an, Shannxi, China
| | - Yae Sun
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Xiaonan Shen
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Yang Gao
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Bomiao Ju
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Yafeng Gao
- Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Suzhou Institute of Systems Medicine, Suzhou, China
| | - Dan Liu
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Xi’an Medical University, Xi’an, Shaanxi, China
| | - Jiapeng Song
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Xiaoxuan Jia
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Yanhong Su
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Anjun Jiao
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Haiyan Liu
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - Lianjun Zhang
- Institute of Systems Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
- Suzhou Institute of Systems Medicine, Suzhou, China
| | - Lan He
- Department of Rheumatology and Immunology, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
| | - Lei Lei
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
| | - WanJun Chen
- Mucosal Immunology Section, National Institute of Dental and Craniofacial Research (NIDCR), NIH, Bethesda, Maryland, USA
| | - Baojun Zhang
- Department of Pathogenic Microbiology and Immunology, School of Basic Medical Sciences, Xi’an Jiaotong University, Xi’an, Shaanxi, China
- Institute of Infection and Immunity, Translational Medicine Institute, Xi’an Jiaotong University Health Science Center, Xi’an, Shaanxi, China
- Key Laboratory of Environment and Genes Related to Diseases (Xi’an Jiaotong University), Ministry of Education, Xi’an, Shaanxi, China
- Xi’an Key Laboratory of Immune-Related Diseases, Xi’an, Shannxi, China
- Department of Otolaryngology Head and Neck Surgery, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi, China
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6
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Syed F, Singhal D, Raedschelders K, Krishnan P, Bone RN, McLaughlin MR, Van Eyk JE, Mirmira RG, Yang ML, Mamula MJ, Wu H, Liu X, Evans-Molina C. A discovery-based proteomics approach identifies protein disulphide isomerase (PDIA1) as a biomarker of β cell stress in type 1 diabetes. EBioMedicine 2023; 87:104379. [PMID: 36463755 PMCID: PMC9719098 DOI: 10.1016/j.ebiom.2022.104379] [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: 02/05/2022] [Revised: 11/07/2022] [Accepted: 11/08/2022] [Indexed: 12/03/2022] Open
Abstract
BACKGROUND Stress responses within the β cell have been linked with both increased β cell death and accelerated immune activation in type 1 diabetes (T1D). At present, information on the timing and scope of these responses as well as disease-related changes in islet β cell protein expression during T1D development is lacking. METHODS Data independent acquisition-mass spectrometry was performed on islets collected longitudinally from NOD mice and NOD-SCID mice rendered diabetic through T cell adoptive transfer. FINDINGS In islets collected from female NOD mice at 10, 12, and 14 weeks of age, we found a time-restricted upregulation of proteins involved in stress mitigation and maintenance of β cell function, followed by loss of expression of protective proteins that heralded diabetes onset. EIF2 signalling and the unfolded protein response, mTOR signalling, mitochondrial function, and oxidative phosphorylation were commonly modulated pathways in both NOD mice and NOD-SCID mice rendered acutely diabetic by T cell adoptive transfer. Protein disulphide isomerase A1 (PDIA1) was upregulated in NOD islets and pancreatic sections from human organ donors with autoantibody positivity or T1D. Moreover, PDIA1 plasma levels were increased in pre-diabetic NOD mice and in the serum of children with recent-onset T1D compared to non-diabetic controls. INTERPRETATION We identified a core set of modulated pathways across distinct mouse models of T1D and identified PDIA1 as a potential human biomarker of β cell stress in T1D. FUNDING NIH (R01DK093954, DK127308, U01DK127786, UC4DK104166, R01DK060581, R01GM118470, and 5T32DK101001-09). VA Merit Award I01BX001733. JDRF (2-SRA-2019-834-S-B, 2-SRA-2018-493-A-B, 3-PDF-20016-199-A-N, 5-CDA-2022-1176-A-N, and 3-PDF-2017-385-A-N).
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Affiliation(s)
- Farooq Syed
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN, USA, 46202; Department of Pediatrics and the Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, 1044 W Walnut St, Indianapolis, IN, USA, 46202
| | - Divya Singhal
- Department of Biochemistry and Molecular Biology, University of Calgary, 2500 University Drive NW, Alberta, Canada, T2N1N4
| | - Koen Raedschelders
- Advanced Clinical Biosystems Research Institute, Precision Health, Barbra Streisand Women's Heart Center at the Smidt Heart Institute, Cedars-Sinai Medical Center, 127 S. San Vicente Blvd., Suite A9227, Los Angeles, CA, USA, 90048
| | - Preethi Krishnan
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN, USA, 46202; Department of Pediatrics and the Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, 1044 W Walnut St, Indianapolis, IN, USA, 46202
| | - Robert N Bone
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN, USA, 46202; Department of Pediatrics and the Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, 1044 W Walnut St, Indianapolis, IN, USA, 46202
| | - Madeline R McLaughlin
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN, USA, 46202
| | - Jennifer E Van Eyk
- Advanced Clinical Biosystems Research Institute, Precision Health, Barbra Streisand Women's Heart Center at the Smidt Heart Institute, Cedars-Sinai Medical Center, 127 S. San Vicente Blvd., Suite A9227, Los Angeles, CA, USA, 90048
| | - Raghavendra G Mirmira
- Kovler Diabetes Center, University of Chicago, 900 E 57th St, Chicago, IL, USA, 60637
| | - Mei-Ling Yang
- Department of Medicine, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, USA, 06510
| | - Mark J Mamula
- Department of Medicine, Yale University School of Medicine, 333 Cedar Street, New Haven, CT, USA, 06510
| | - Huanmei Wu
- Department of BioHealth Informatics, Indiana University-Purdue University Indianapolis, 535 W. Michigan Street, Indianapolis, IN, USA, 46202; Department of Health Services Administration and Policy, Temple University College of Public Health, 1101 W. Montgomery Ave, Philadelphia, PA, USA, 19122
| | - Xiaowen Liu
- Deming Department of Medicine, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, LA, USA, 70112
| | - Carmella Evans-Molina
- Center for Diabetes and Metabolic Diseases, Indiana University School of Medicine, 635 Barnhill Drive, Indianapolis, IN, USA, 46202; Department of Pediatrics and the Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, 1044 W Walnut St, Indianapolis, IN, USA, 46202; Department of Medicine, Indiana University School of Medicine, 340 W 10th St, Indianapolis, IN, USA, 46202; Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, 635 Barnhill Dr, Indianapolis, IN, USA, 46202; Richard L. Roudebush VA Medical Center, Indiana University School of Informatics and Computing, 1481 W 10th St, Indianapolis, IN, USA, 46202.
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7
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Giri BR, Li S, Fang C, Qiu L, Yan S, Pakharukova MY, Cheng G. Dynamic miRNA profile of host T cells during early hepatic stages of Schistosoma japonicum infection. Front Immunol 2022; 13:911139. [PMID: 36119054 PMCID: PMC9478579 DOI: 10.3389/fimmu.2022.911139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 08/09/2022] [Indexed: 11/17/2022] Open
Abstract
Schistosomes undergo complicated migration in final hosts during infection, associated with differential immune responses. It has been shown that CD4+ T cells play critical roles in response to Schistosoma infections and accumulated documents have indicated that miRNAs tightly regulate T cell activity. However, miRNA profiles in host T cells associated with Schistosoma infection remain poorly characterized. Therefore, we undertook the study and systematically characterized T cell miRNA profiles from the livers and blood of S. japonicum infected C57BL/6J mice at 14- and 21-days post-infection. We observed 508 and 504 miRNAs, in which 264 miRNAs were co-detected in T cells isolated from blood and livers, respectively. The comparative analysis of T cell miRNAs from uninfected and infected C57BL/6J mice blood showed that miR-486b-5p/3p expression was significantly downregulated and linked to various T cell immune responses and miR-375-5p was highly upregulated, associated with Wnt signaling and pluripotency, Delta notch signaling pathways, etc. Whereas hepatic T cells showed miR-466b-3p, miR-486b-3p, miR-1969, and miR-375 were differentially expressed compared to the uninfected control. The different expressions of some miRNAs were further corroborated in isolated T cells from mice and in vitro cultured EL-4 cells treated with S. japonicum worm antigens by RT-qPCR and similar results were found. In addition, bioinformatics analysis combined with RT-qPCR validation of selected targets associated with the immune system and parasite-caused infectious disease showed a significant increase in the expression of Ctla4, Atg5, Hgf, Vcl and Arpc4 and a decreased expression of Fermt3, Pik3r1, Myd88, Nfkbie, Ppp1r12a, Ppp3r1, Nfyb, Atg12, Ube2n, Tyrobp, Cxcr4 and Tollip. Overall, these results unveil the comprehensive repertoire of T cell miRNAs during S. japonicum infection, suggesting that the circulatory (blood) and liver systems have distinct miRNAs landscapes that may be important for regulating T cell immune response. Altogether, our findings indicated a dynamic expression pattern of T cell miRNAs during the hepatic stages of S. japonicum infection.
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Affiliation(s)
- Bikash R. Giri
- Shanghai Tenth People’s Hospital, Institute for Infectious Diseases and Vaccine Development, Tongji University School of Medicine, Shanghai, China
| | - Shun Li
- Key Laboratory of Animal Parasitology of Ministry of Agriculture and Rural Affairs, Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai, China
| | - Chuantao Fang
- Shanghai Tenth People’s Hospital, Institute for Infectious Diseases and Vaccine Development, Tongji University School of Medicine, Shanghai, China
| | - Lin Qiu
- Shanghai Institute of Nutrition and Health, Chinese Academy of Sciences, Shanghai, China
| | - Shi Yan
- Institut für Parasitologie, Veterinärmedizinische Universität, Wien, Austria
| | - Maria Y. Pakharukova
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
- Department of Natural Sciences, Novosibirsk State University, Novosibirsk, Russia
- Institute of Molecular Biology and Biophysics, Novosibirsk, Russia
| | - Guofeng Cheng
- Shanghai Tenth People’s Hospital, Institute for Infectious Diseases and Vaccine Development, Tongji University School of Medicine, Shanghai, China
- *Correspondence: Guofeng Cheng, ;
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8
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Huang S, Dong C, Li D, Xu Y, Wu J. ARPC2: A Pan-Cancer Prognostic and Immunological Biomarker That Promotes Hepatocellular Carcinoma Cell Proliferation and Invasion. Front Cell Dev Biol 2022; 10:896080. [PMID: 35733852 PMCID: PMC9207441 DOI: 10.3389/fcell.2022.896080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 05/03/2022] [Indexed: 11/30/2022] Open
Abstract
Background: Actin-related protein 2/3 complex subunit 2 (ARPC2) plays a fundamental role in actin filament nucleation and is critical for tumor cell migration and invasion. However, its abnormal expression, clinical significance, and biological function in human pan-cancer have been poorly explored. Thus, we focused on ARPC2 as an entry point for identifying novel pan-cancer prognostic biomarkers. Methods: The Cancer Genome Atlas (TCGA) and the Genotype-Tissue Expression (GTEx) databases were used to assess the differential expression of ARPC2 in pan-cancer. The Human Protein Atlas was used for the tissue/cell-specific expression analysis of ARPC2. The genetic alteration information of ARPC2 was obtained from the cBioPortal database and the GSCALite platform. The prognostic value of ARPC2 was explored in pan-cancer using Cox regression and Kaplan–Meier analyses. Spearman correlation analysis was performed to investigate the relationship between ARPC2 expression and tumor mutational burden (TMB), DNA methyltransferases, microsatellite instability (MSI), immune-related genes, and mismatch repairs (MMRs). The ESTIMATE and CIBERSORT algorithms were used to evaluate the association between ARPC2 expression and the tumor microenvironment (TME) and immune infiltrating cells. We also conducted differential expression analysis of ARPC2 in hepatocellular carcinoma (HCC) tissues and cell lines using qPCR, western blotting, and immunohistochemistry and explored its role in tumor proliferation, migration, and invasion of HCC cells. Results: ARPC2 expression was significantly upregulated in multiple tumor types and significantly correlated with worse prognosis and higher clinicopathological stage. Genetic alterations and DNA methylation in tumor tissues may contribute to the aberrant expression of ARPC2. ARPC2 expression was significantly correlated with the tumor microenvironment (TME), infiltrating immune cells, TMB, microsatellite instability (MSI), and immune checkpoint-related genes in certain cancer types. In this experimental study, we found that the expression of ARPC2 was dramatically upregulated in HCC tissues and cell lines compared to adjacent liver tissues and normal liver cell lines. Functionally, ARPC2 silencing in HCC cells significantly inhibited cell proliferation, migration, and invasion, while the overexpression of ARPC2 promotes tumor proliferation, migration, and invasion. Conclusion: ARPC2 is a promising prognostic and immunological biomarker for multiple tumor types and is likely to play an important role in HCC progression and metastasis.
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Affiliation(s)
- Shenglan Huang
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Key Laboratory of Clinical and Translational Cancer Research, Nanchang, China
| | - Cairong Dong
- Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Dan Li
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Key Laboratory of Clinical and Translational Cancer Research, Nanchang, China
| | - Yongkang Xu
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Key Laboratory of Clinical and Translational Cancer Research, Nanchang, China
| | - Jianbing Wu
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
- Jiangxi Key Laboratory of Clinical and Translational Cancer Research, Nanchang, China
- *Correspondence: Jianbing Wu,
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9
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Sun J, Zhong X, Fu X, Miller H, Lee P, Yu B, Liu C. The Actin Regulators Involved in the Function and Related Diseases of Lymphocytes. Front Immunol 2022; 13:799309. [PMID: 35371070 PMCID: PMC8965893 DOI: 10.3389/fimmu.2022.799309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 02/01/2022] [Indexed: 11/21/2022] Open
Abstract
Actin is an important cytoskeletal protein involved in signal transduction, cell structure and motility. Actin regulators include actin-monomer-binding proteins, Wiskott-Aldrich syndrome (WAS) family of proteins, nucleation proteins, actin filament polymerases and severing proteins. This group of proteins regulate the dynamic changes in actin assembly/disassembly, thus playing an important role in cell motility, intracellular transport, cell division and other basic cellular activities. Lymphocytes are important components of the human immune system, consisting of T-lymphocytes (T cells), B-lymphocytes (B cells) and natural killer cells (NK cells). Lymphocytes are indispensable for both innate and adaptive immunity and cannot function normally without various actin regulators. In this review, we first briefly introduce the structure and fundamental functions of a variety of well-known and newly discovered actin regulators, then we highlight the role of actin regulators in T cell, B cell and NK cell, and finally provide a landscape of various diseases associated with them. This review provides new directions in exploring actin regulators and promotes more precise and effective treatments for related diseases.
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Affiliation(s)
- Jianxuan Sun
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.,Department and Institute of Urology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xingyu Zhong
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoyu Fu
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Heather Miller
- Cytek Biosciences, R&D Clinical Reagents, Fremont, CA, United States
| | - Pamela Lee
- Department of Paediatrics and Adolescent Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Bing Yu
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Chaohong Liu
- Department of Pathogen Biology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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10
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Yu Y, Zhou Y, Di C, Zhao C, Chen J, Su W, Wu Q, Wu M, Su X, Xia Z. Increased airway epithelial cell-derived exosomes activate macrophage-mediated allergic inflammation via CD100 shedding. J Cell Mol Med 2021; 25:8850-8862. [PMID: 34414666 PMCID: PMC8435458 DOI: 10.1111/jcmm.16843] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 06/07/2021] [Accepted: 07/15/2021] [Indexed: 01/10/2023] Open
Abstract
Airway epithelial cells (AECs) participate in allergic airway inflammation by producing mediators in response to allergen stimulation. Whether ovalbumin (OVA) challenge promotes exosome release from AECs (OVA‐challenged AEC‐derived exosomes (OAEs)), thereby affecting airway inflammation, as well as the underlying mechanisms, is unknown. Our study showed that AECs released an increased number of exosomes after OVA challenge, and the expression of Plexin B2 (PLXNB2; a natural CD100 ligand) was increased by a massive 85.7‐fold in OAEs than in PBS‐treated AEC‐derived exosomes (PAEs). CD100+F4/80+ macrophages engulfed OAEs to trigger the transcription of pro‐inflammatory chemokines and cytokines. Plxnb2 transcripts increased in asthmatic lungs, and similarly, PLXNB2 protein was highly enriched in exosomes purified from asthmatic bronchoalveolar lavage (BAL) fluid. Furthermore, aspiration of PLXNB2 or OAEs increased the recruitment of lung neutrophils, monocytes, eosinophils and dendritic cells in OVA‐challenged mice. Mechanistically, OAE aspiration enhanced the cleavage of CD100 by MMP14, which manifested as an increase in the soluble CD100 (sCD100) level in BAL fluid and lung homogenates. Knockdown of Mmp14 in macrophages prevented the cleavage of CD100 and reduced Ccl2, Ccl5 and Cxcl2 transcription. These data indicate that PLXNB2‐containing OAEs aggravate airway asthmatic inflammation via cleavage of CD100 by MMP14, suggesting potential therapeutic targets of OAE‐mediated asthma exacerbations.
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Affiliation(s)
- Yi Yu
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai, China
| | - Yao Zhou
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai, China
| | - Caixia Di
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai, China
| | - Caiqi Zhao
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Jie Chen
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Wen Su
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai, China
| | - Qun Wu
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai, China
| | - Min Wu
- School of Medicine and Health Sciences, Department of Biomedical Sciences, University of North Dakota, Grand Forks, ND, USA
| | - Xiao Su
- Unit of Respiratory Infection and Immunity, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Zhenwei Xia
- Department of Pediatrics, Ruijin Hospital, Shanghai Jiao-tong University School of Medicine, Shanghai, China
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11
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Huang S, Li D, Zhuang L, Sun L, Wu J. Identification of Arp2/3 Complex Subunits as Prognostic Biomarkers for Hepatocellular Carcinoma. Front Mol Biosci 2021; 8:690151. [PMID: 34307456 PMCID: PMC8299467 DOI: 10.3389/fmolb.2021.690151] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 06/14/2021] [Indexed: 01/15/2023] Open
Abstract
The actin-related protein 2/3 complex (Arp2/3) is a major actin nucleator that has been widely reported and plays an important role in promoting the migration and invasion of various cancers. However, the expression patterns and prognostic values of Arp2/3 subunits in hepatocellular carcinoma (HCC) remain unclear. In this study, The Cancer Genome Atlas (TCGA) and UCSC Xena databases were used to obtain mRNA expression and the corresponding clinical information, respectively. The differential expression and Arp2/3 subunits in HCC were analyzed using the “limma” package of R 4.0.4 software. The prognostic value of each subunit was evaluated using Kaplan–Meier survival analysis and Cox proportional hazards regression analyses. The results revealed that mRNA expression of Arp2/3 members (ACTR2, ACTR3, ARPC1A, APRC1B, ARPC2, ARPC3, ARPC4, ARPC5, and ARPC5L) was upregulated in HCC. Higher expression of Arp2/3 members was significantly correlated with worse overall survival (OS) and shorter progression-free survival (PFS) in HCC patients. Cox proportional hazards regression analyses demonstrated that ACTR3, ARPC2, and ARPC5 were independent prognostic biomarkers of survival in patients with HCC. The relation between tumor immunocyte infiltration and the prognostic subunits was determined using the TIMER 2.0 platform and the GEPIA database. Gene set enrichment analysis (GSEA) was performed to explore the potential mechanisms of prognostic subunits in the carcinogenesis of HCC. The results revealed that ACTR3, ARPC2, and ARPC5 were significantly positively correlated with the infiltration of immune cells in HCC. The GSEA results indicated that ACTR3, ARPC2, and ARPC5 are involved in multiple cancer-related pathways that promote the development of HCC. In brief, various analyses indicated that Arp2/3 complex subunits were significantly upregulated and predicted worse survival in HCC, and they found that ACTR3, ARPC2, and ARPC5 could be used as independent predictors of survival and might be applied as promising molecular targets for diagnosis and therapy of HCC in the future.
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Affiliation(s)
- Shenglan Huang
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Key Laboratory of Clinical and Translational Cancer Research, Nanchang, China
| | - Dan Li
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Key Laboratory of Clinical and Translational Cancer Research, Nanchang, China
| | - LingLing Zhuang
- Jiangxi Key Laboratory of Clinical and Translational Cancer Research, Nanchang, China.,Department of Gynaecology, The Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Liying Sun
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Key Laboratory of Clinical and Translational Cancer Research, Nanchang, China
| | - Jianbing Wu
- Department of Oncology, The Second Affiliated Hospital of Nanchang University, Nanchang, China.,Jiangxi Key Laboratory of Clinical and Translational Cancer Research, Nanchang, China
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12
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Capitani N, Baldari CT. F-Actin Dynamics in the Regulation of Endosomal Recycling and Immune Synapse Assembly. Front Cell Dev Biol 2021; 9:670882. [PMID: 34249926 PMCID: PMC8265274 DOI: 10.3389/fcell.2021.670882] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 05/24/2021] [Indexed: 12/24/2022] Open
Abstract
Membrane proteins endocytosed at the cell surface as vesicular cargoes are sorted at early endosomes for delivery to lysosomes for degradation or alternatively recycled to different cellular destinations. Cargo recycling is orchestrated by multimolecular complexes that include the retromer, retriever, and the WASH complex, which promote the polymerization of new actin filaments at early endosomes. These endosomal actin pools play a key role at different steps of the recycling process, from cargo segregation to specific endosomal subdomains to the generation and mobility of tubulo-vesicular transport carriers. Local F-actin pools also participate in the complex redistribution of endomembranes and organelles that leads to the acquisition of cell polarity. Here, we will present an overview of the contribution of endosomal F-actin to T-cell polarization during assembly of the immune synapse, a specialized membrane domain that T cells form at the contact with cognate antigen-presenting cells.
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Affiliation(s)
- Nagaja Capitani
- Department of Life Sciences, University of Siena, Siena, Italy
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13
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Sample Preparation and Imaging Conditions Affect mEos3.2 Photophysics in Fission Yeast Cells. Biophys J 2021; 120:21-34. [PMID: 33217381 PMCID: PMC7820738 DOI: 10.1016/j.bpj.2020.11.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 11/03/2020] [Accepted: 11/10/2020] [Indexed: 01/28/2023] Open
Abstract
Photoconvertible fluorescent proteins (PCFPs) are widely used in super-resolution microscopy and studies of cellular dynamics. However, our understanding of their photophysics is still limited, hampering their quantitative application. For example, we do not know the optimal sample preparation methods or imaging conditions to count protein molecules fused to PCFPs by single-molecule localization microscopy in live and fixed cells. We also do not know how the behavior of PCFPs in live cells compares with fixed cells. Therefore, we investigated how formaldehyde fixation influences the photophysical properties of the popular green-to-red PCFP mEos3.2 in fission yeast cells under a wide range of imaging conditions. We estimated photophysical parameters by fitting a three-state model of photoconversion and photobleaching to the time course of fluorescence signal per yeast cell expressing mEos3.2. We discovered that formaldehyde fixation makes the fluorescence signal, photoconversion rate, and photobleaching rate of mEos3.2 sensitive to the buffer conditions likely by permeabilizing the yeast cell membrane. Under some imaging conditions, the time-integrated mEos3.2 signal per yeast cell is similar in live cells and fixed cells imaged in buffer at pH 8.5 with 1 mM DTT, indicating that light chemical fixation does not destroy mEos3.2 molecules. We also discovered that 405-nm irradiation drove some red-state mEos3.2 molecules to enter an intermediate dark state, which can be converted back to the red fluorescent state by 561-nm illumination. Our findings provide a guide to quantitatively compare conditions for imaging mEos3.2-tagged molecules in yeast cells. Our imaging assay and mathematical model are easy to implement and provide a simple quantitative approach to measure the time-integrated signal and the photoconversion and photobleaching rates of fluorescent proteins in cells.
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14
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Shen H, Gu C, Liang T, Liu H, Guo F, Liu X. Unveiling the heterogeneity of NKT cells in the liver through single cell RNA sequencing. Sci Rep 2020; 10:19453. [PMID: 33173202 PMCID: PMC7655820 DOI: 10.1038/s41598-020-76659-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Accepted: 10/29/2020] [Indexed: 11/10/2022] Open
Abstract
CD1d-dependent type I NKT cells, which are activated by lipid antigen, are known to play important roles in innate and adaptive immunity, as are a portion of type II NKT cells. However, the heterogeneity of NKT cells, especially NKT-like cells, remains largely unknown. Here, we report the profiling of NKT (NK1.1+CD3e+) cells in livers from wild type (WT), Jα18-deficient and CD1d-deficient mice by single-cell RNA sequencing. Unbiased transcriptional clustering revealed distinct cell subsets. The transcriptomic profiles identified the well-known CD1d-dependent NKT cells and defined two CD1d-independent NKT cell subsets. In addition, validation of marker genes revealed the differential organ distribution and landscape of NKT cell subsets during liver tumor progression. More importantly, we found that CD1d-independent Sca-1−CD62L+ NKT cells showed a strong ability to secrete IFN-γ after costimulation with IL-2, IL-12 and IL-18 in vitro. Collectively, our findings provide a comprehensive characterization of NKT cell heterogeneity and unveil a previously undefined functional NKT cell subset.
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Affiliation(s)
- Hao Shen
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Chan Gu
- Center for Translational Medicine, Ministry of Education Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu, 610041, Sichuan, China
| | - Tao Liang
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Haifeng Liu
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, China
| | - Fan Guo
- Center for Translational Medicine, Ministry of Education Key Laboratory of Birth Defects and Related Diseases of Women and Children, Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu, 610041, Sichuan, China. .,Ministry of Education Key Laboratory of Bio-Resource and Eco-Environment, College of Life Sciences, Sichuan University, Chengdu, 610041, Sichuan, China.
| | - Xiaolong Liu
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beijing, China. .,School of Life Sciences, Hangzhou Institute for Advanced Study, UCAS, Hangzhou, 310024, China. .,School of Life Science and Technology, ShanghaiTech University, Shanghai, 200031, China.
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15
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Mastrogiovanni M, Juzans M, Alcover A, Di Bartolo V. Coordinating Cytoskeleton and Molecular Traffic in T Cell Migration, Activation, and Effector Functions. Front Cell Dev Biol 2020; 8:591348. [PMID: 33195256 PMCID: PMC7609836 DOI: 10.3389/fcell.2020.591348] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 09/24/2020] [Indexed: 12/28/2022] Open
Abstract
Dynamic localization of receptors and signaling molecules at the plasma membrane and within intracellular vesicular compartments is crucial for T lymphocyte sensing environmental cues, triggering membrane receptors, recruiting signaling molecules, and fine-tuning of intracellular signals. The orchestrated action of actin and microtubule cytoskeleton and intracellular vesicle traffic plays a key role in all these events that together ensure important steps in T cell physiology. These include extravasation and migration through lymphoid and peripheral tissues, T cell interactions with antigen-presenting cells, T cell receptor (TCR) triggering by cognate antigen-major histocompatibility complex (MHC) complexes, immunological synapse formation, cell activation, and effector functions. Cytoskeletal and vesicle traffic dynamics and their interplay are coordinated by a variety of regulatory molecules. Among them, polarity regulators and membrane-cytoskeleton linkers are master controllers of this interplay. Here, we review the various ways the T cell plasma membrane, receptors, and their signaling machinery interplay with the actin and microtubule cytoskeleton and with intracellular vesicular compartments. We highlight the importance of this fine-tuned crosstalk in three key stages of T cell biology involving cell polarization: T cell migration in response to chemokines, immunological synapse formation in response to antigen cues, and effector functions. Finally, we discuss two examples of perturbation of this interplay in pathological settings, such as HIV-1 infection and mutation of the polarity regulator and tumor suppressor adenomatous polyposis coli (Apc) that leads to familial polyposis and colorectal cancer.
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Affiliation(s)
- Marta Mastrogiovanni
- Ligue Nationale Contre le Cancer – Equipe Labellisée LIGUE 2018, Lymphocyte Cell Biology Unit, INSERM-U1221, Department of Immunology, Institut Pasteur, Paris, France
- Collège Doctoral, Sorbonne Université, Paris, France
| | - Marie Juzans
- Ligue Nationale Contre le Cancer – Equipe Labellisée LIGUE 2018, Lymphocyte Cell Biology Unit, INSERM-U1221, Department of Immunology, Institut Pasteur, Paris, France
| | - Andrés Alcover
- Ligue Nationale Contre le Cancer – Equipe Labellisée LIGUE 2018, Lymphocyte Cell Biology Unit, INSERM-U1221, Department of Immunology, Institut Pasteur, Paris, France
| | - Vincenzo Di Bartolo
- Ligue Nationale Contre le Cancer – Equipe Labellisée LIGUE 2018, Lymphocyte Cell Biology Unit, INSERM-U1221, Department of Immunology, Institut Pasteur, Paris, France
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16
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Moderate static magnetic fields enhance antitumor CD8 + T cell function by promoting mitochondrial respiration. Sci Rep 2020; 10:14519. [PMID: 32884074 PMCID: PMC7471296 DOI: 10.1038/s41598-020-71566-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Accepted: 08/10/2020] [Indexed: 12/26/2022] Open
Abstract
With the discovery of magnetoreceptor mechanisms in animals, it materialized the novel applications of controlling cell and animal behaviors using magnetic fields. T cells have shown to be sensitive to magnetic fields. Here, we reported that exposure to moderate SMFs (static magnetic fields) led to increased granule and cytokine secretion as well as ATP production and mitochondrial respiration from CD8+ T cells. These effects were inhibited by knocking down the Uqcrb and Ndufs6 genes of mitochondrial respiratory chain, whose transcriptions were regulated by candidate magnetoreceptor genes Isca1 and Cry1/Cry2. SMF exposure also promoted CD8+ T cell granule and cytokine secretion and repressed tumor growth in vivo. SMFs enhanced CD8+ T cell cytotoxicity, and the adoptive transfer into tumor-bearing mice resulted in enhanced antitumor effects. Collectively, our study suggests that moderate SMFs enhance CD8+ T cell cytotoxicity by promoting mitochondrial respiration and promoted the antitumor function of CD8+ T cells.
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17
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Chaudhuri PK, Wang MS, Black CT, Huse M, Kam LC. Modulating T Cell Activation Using Depth Sensing Topographic Cues. ACTA ACUST UNITED AC 2020; 4:e2000143. [PMID: 32744809 DOI: 10.1002/adbi.202000143] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 06/16/2020] [Indexed: 12/11/2022]
Abstract
This report examines how sensing of substrate topography can be used to modulate T cell activation, a key coordinating step in the adaptive immune response. Inspired by the native T cell-antigen presenting cell interface, micrometer scale pits with varying depth are fabricated into planar substrates. Primary CD4+ T cells extend actin-rich protrusions into the micropits. T cell activation, reflected in secretion of cytokines interleukin-2 and interferon gamma, is sensitive to the micropit depth. Surprisingly, arrays of micropits with 4 μm depth enhance activation compared to flat substrates but deeper micropits are less effective at increasing cell response, revealing a biphasic dependence in activation as a function of feature dimensions. Inhibition of cell contractility abrogates the enhanced activation associated with the micropits. In conclusion, this report demonstrates that the 3D, microscale topography can be used to enhance T cell activation, an ability that most directly can be used to improve production of these cells for immunotherapy.
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Affiliation(s)
| | - Mitchell S Wang
- Pharmacology Graduate Program, Weill Cornell Medical College, New York, NY, 10065, USA
| | - Charles T Black
- Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Morgan Huse
- Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, NY, 10065, USA
| | - Lance C Kam
- Department of Biomedical Engineering, Columbia University, New York, NY, 10027, USA
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18
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Obeidy P, Ju LA, Oehlers SH, Zulkhernain NS, Lee Q, Galeano Niño JL, Kwan RY, Tikoo S, Cavanagh LL, Mrass P, Cook AJ, Jackson SP, Biro M, Roediger B, Sixt M, Weninger W. Partial loss of actin nucleator actin-related protein 2/3 activity triggers blebbing in primary T lymphocytes. Immunol Cell Biol 2019; 98:93-113. [PMID: 31698518 PMCID: PMC7028084 DOI: 10.1111/imcb.12304] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 11/03/2019] [Accepted: 11/04/2019] [Indexed: 12/11/2022]
Abstract
T lymphocytes utilize amoeboid migration to navigate effectively within complex microenvironments. The precise rearrangement of the actin cytoskeleton required for cellular forward propulsion is mediated by actin regulators, including the actin‐related protein 2/3 (Arp2/3) complex, a macromolecular machine that nucleates branched actin filaments at the leading edge. The consequences of modulating Arp2/3 activity on the biophysical properties of the actomyosin cortex and downstream T cell function are incompletely understood. We report that even a moderate decrease of Arp3 levels in T cells profoundly affects actin cortex integrity. Reduction in total F‐actin content leads to reduced cortical tension and disrupted lamellipodia formation. Instead, in Arp3‐knockdown cells, the motility mode is dominated by blebbing migration characterized by transient, balloon‐like protrusions at the leading edge. Although this migration mode seems to be compatible with interstitial migration in three‐dimensional environments, diminished locomotion kinetics and impaired cytotoxicity interfere with optimal T cell function. These findings define the importance of finely tuned, Arp2/3‐dependent mechanophysical membrane integrity in cytotoxic effector T lymphocyte activities.
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Affiliation(s)
- Peyman Obeidy
- Immune Imaging Program, The Centenary Institute, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2050, Australia
| | - Lining A Ju
- School of Biomedical Engineering, The University of Sydney, Sydney, NSW, 2006, Australia.,Heart Research Institute and Charles Perkins Centre, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Stefan H Oehlers
- Tuberculosis Research Program, The Centenary Institute, The University of Sydney, Camperdown, NSW, 2050, Australia.,Discipline of Infectious Diseases & Immunology, Marie Bashir Institute, The University of Sydney, Sydney, NSW, 2006, Australia.,Sydney Medical School, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Nursafwana S Zulkhernain
- Immune Imaging Program, The Centenary Institute, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2050, Australia.,Sydney Medical School, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Quintin Lee
- Immune Imaging Program, The Centenary Institute, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2050, Australia
| | - Jorge L Galeano Niño
- EMBL Australia Node in Single Molecule Science, School of Medical Sciences, the ARC Centre of Excellence in Advanced Molecular Imaging, University of New South Wales, Kensington, NSW, 2033, Australia
| | - Rain Yq Kwan
- Immune Imaging Program, The Centenary Institute, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2050, Australia
| | - Shweta Tikoo
- Immune Imaging Program, The Centenary Institute, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2050, Australia.,Sydney Medical School, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Lois L Cavanagh
- Immune Imaging Program, The Centenary Institute, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2050, Australia
| | - Paulus Mrass
- Department of Molecular Genetics and Microbiology, University of New Mexico School of Medicine, Albuquerque, NM, 87131, USA
| | - Adam Jl Cook
- Immune Imaging Program, The Centenary Institute, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2050, Australia.,Sydney Medical School, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Shaun P Jackson
- Heart Research Institute and Charles Perkins Centre, The University of Sydney, Sydney, NSW, 2006, Australia.,Central Clinical School, Sydney Medical School, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Maté Biro
- EMBL Australia Node in Single Molecule Science, School of Medical Sciences, the ARC Centre of Excellence in Advanced Molecular Imaging, University of New South Wales, Kensington, NSW, 2033, Australia
| | - Ben Roediger
- Immune Imaging Program, The Centenary Institute, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2050, Australia
| | - Michael Sixt
- Institute of Science and Technology, Klosterneuburg, 3400, Austria
| | - Wolfgang Weninger
- Immune Imaging Program, The Centenary Institute, Faculty of Medicine and Health, The University of Sydney, Camperdown, NSW, 2050, Australia.,Department of Dermatology, Royal Prince Alfred Hospital, Camperdown, NSW, 2050, Australia.,Discipline of Dermatology, Sydney Medical School, The University of Sydney, Sydney, NSW, 2006, Australia.,Department of Dermatology, Medical University of Vienna, Vienna, 1090, Austria
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19
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Randzavola LO, Strege K, Juzans M, Asano Y, Stinchcombe JC, Gawden-Bone CM, Seaman MN, Kuijpers TW, Griffiths GM. Loss of ARPC1B impairs cytotoxic T lymphocyte maintenance and cytolytic activity. J Clin Invest 2019. [PMID: 31710310 DOI: 10.1172/jci129388)] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
CD8 cytotoxic T lymphocytes (CTLs) rely on rapid reorganization of the branched F-actin network to drive the polarized secretion of lytic granules, initiating target cell death during the adaptive immune response. Branched F-actin is generated by the nucleation factor actin-related protein 2/3 (Arp2/3) complex. Patients with mutations in the actin-related protein complex 1B (ARPC1B) subunit of Arp2/3 show combined immunodeficiency, with symptoms of immune dysregulation, including recurrent viral infections and reduced CD8+ T cell count. Here, we show that loss of ARPC1B led to loss of CTL cytotoxicity, with the defect arising at 2 different levels. First, ARPC1B is required for lamellipodia formation, cell migration, and actin reorganization across the immune synapse. Second, we found that ARPC1B is indispensable for the maintenance of TCR, CD8, and GLUT1 membrane proteins at the plasma membrane of CTLs, as recycling via the retromer and WASH complexes was impaired in the absence of ARPC1B. Loss of TCR, CD8, and GLUT1 gave rise to defects in T cell signaling and proliferation upon antigen stimulation of ARPC1B-deficient CTLs, leading to a progressive loss of CD8+ T cells. This triggered an activation-induced immunodeficiency of CTL activity in ARPC1B-deficient patients, which could explain the susceptibility to severe and prolonged viral infections.
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Affiliation(s)
- Lyra O Randzavola
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - Katharina Strege
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - Marie Juzans
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - Yukako Asano
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - Jane C Stinchcombe
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - Christian M Gawden-Bone
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - Matthew Nj Seaman
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - Taco W Kuijpers
- Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands.,Department of Pediatric Immunology, Rheumatology and Infectious Disease, Emma Children's Hospital, Medical Center Amsterdam University, Amsterdam, Netherlands
| | - Gillian M Griffiths
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
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20
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Randzavola LO, Strege K, Juzans M, Asano Y, Stinchcombe JC, Gawden-Bone CM, Seaman MN, Kuijpers TW, Griffiths GM. Loss of ARPC1B impairs cytotoxic T lymphocyte maintenance and cytolytic activity. J Clin Invest 2019; 129:5600-5614. [PMID: 31710310 PMCID: PMC6877333 DOI: 10.1172/jci129388] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 09/10/2019] [Indexed: 12/30/2022] Open
Abstract
CD8 cytotoxic T lymphocytes (CTLs) rely on rapid reorganization of the branched F-actin network to drive the polarized secretion of lytic granules, initiating target cell death during the adaptive immune response. Branched F-actin is generated by the nucleation factor actin-related protein 2/3 (Arp2/3) complex. Patients with mutations in the actin-related protein complex 1B (ARPC1B) subunit of Arp2/3 show combined immunodeficiency, with symptoms of immune dysregulation, including recurrent viral infections and reduced CD8+ T cell count. Here, we show that loss of ARPC1B led to loss of CTL cytotoxicity, with the defect arising at 2 different levels. First, ARPC1B is required for lamellipodia formation, cell migration, and actin reorganization across the immune synapse. Second, we found that ARPC1B is indispensable for the maintenance of TCR, CD8, and GLUT1 membrane proteins at the plasma membrane of CTLs, as recycling via the retromer and WASH complexes was impaired in the absence of ARPC1B. Loss of TCR, CD8, and GLUT1 gave rise to defects in T cell signaling and proliferation upon antigen stimulation of ARPC1B-deficient CTLs, leading to a progressive loss of CD8+ T cells. This triggered an activation-induced immunodeficiency of CTL activity in ARPC1B-deficient patients, which could explain the susceptibility to severe and prolonged viral infections.
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Affiliation(s)
- Lyra O. Randzavola
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - Katharina Strege
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - Marie Juzans
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - Yukako Asano
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - Jane C. Stinchcombe
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | | | - Matthew N.J. Seaman
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
| | - Taco W. Kuijpers
- Department of Blood Cell Research, Sanquin Research and Landsteiner Laboratory, Academic Medical Center, University of Amsterdam, Amsterdam, Netherlands
- Department of Pediatric Immunology, Rheumatology and Infectious Disease, Emma Children’s Hospital, Medical Center Amsterdam University, Amsterdam, Netherlands
| | - Gillian M. Griffiths
- Cambridge Institute for Medical Research, University of Cambridge, Cambridge, United Kingdom
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21
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Al-Zeer MA, Dutkiewicz M, von Hacht A, Kreuzmann D, Röhrs V, Kurreck J. Alternatively spliced variants of the 5'-UTR of the ARPC2 mRNA regulate translation by an internal ribosome entry site (IRES) harboring a guanine-quadruplex motif. RNA Biol 2019; 16:1622-1632. [PMID: 31387452 DOI: 10.1080/15476286.2019.1652524] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Abstract
The 5'-UTR of the actin-related protein 2/3 complex subunit 2 (ARPC2) mRNA exists in two variants. Using a bicistronic reporter construct, the present study demonstrates that the longer variant of the 5'-UTR harbours an internal ribosome entry site (IRES) which is lacking in the shorter one. Multiple control assays confirmed that only this variant promotes cap-independent translation. Furthermore, it includes a guanine-rich region that is capable of forming a guanine-quadruplex (G-quadruplex) structure which was found to contribute to the IRES activity. To investigate the cellular function of the IRES element, we determined the expression level of ARPC2 at various cell densities. At high cell density, the relative ARPC2 protein level increases, supporting the presumed function of IRES elements in driving the expression of certain genes under stressful conditions that compromise cap-dependent translation. Based on chemical probing experiments and computer-based predictions, we propose a structural model of the IRES element, which includes the G-quadruplex motif exposed from the central stem-loop element. Taken together, our study describes the functional relevance of two alternative 5'-UTR splice variants of the ARPC2 mRNA, one of which contains an IRES element with a G-quadruplex as a central motif, promoting translation under stressful cellular conditions.
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Affiliation(s)
- Munir A Al-Zeer
- Institute of Biotechnology, Technische Universität Berlin , Berlin , Germany
| | - Mariola Dutkiewicz
- Institute of Bioorganic Chemistry, Polish Academy of Sciences , Poznan , Poland
| | | | - Denise Kreuzmann
- Institute of Biotechnology, Technische Universität Berlin , Berlin , Germany
| | - Viola Röhrs
- Institute of Biotechnology, Technische Universität Berlin , Berlin , Germany
| | - Jens Kurreck
- Institute of Biotechnology, Technische Universität Berlin , Berlin , Germany
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22
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Onnis A, Baldari CT. Orchestration of Immunological Synapse Assembly by Vesicular Trafficking. Front Cell Dev Biol 2019; 7:110. [PMID: 31334230 PMCID: PMC6616304 DOI: 10.3389/fcell.2019.00110] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Accepted: 06/03/2019] [Indexed: 12/15/2022] Open
Abstract
Ligation of the T-cell antigen receptor (TCR) by cognate peptide bound to the Major Histocompatibility Complex on the surface of an antigen-presenting cell (APC) leads to the spatial reorganization of the TCR and accessory receptors to form a specialized area of intimate contact between T cell and APC, known as the immunological synapse (IS), where signals are deciphered, coordinated, and integrated to promote T cell activation. With the discovery that an endosomal TCR pool contributes to IS assembly and function by undergoing polarized recycling to the IS, recent years have witnessed a shift from a plasma membrane-centric view of the IS to the vesicular trafficking events that occur at this location following the TCR-dependent translocation of the centrosome toward the synaptic membrane. Here we will summarize our current understanding of the trafficking pathways that are responsible for the steady delivery of endosomal TCRs, kinases, and adapters to the IS to sustain signaling, as well as of the endocytic pathways responsible for signal termination. We will also discuss recent evidence highlighting a role for endosomes in sustaining TCR signaling after its internalization at the IS and identifying the IS as a site of formation and release of extracellular vesicles that allow for transcellular communication with the APC.
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Affiliation(s)
- Anna Onnis
- Department of Life Sciences, University of Siena, Siena, Italy
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23
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Bolger-Munro M, Choi K, Scurll JM, Abraham L, Chappell RS, Sheen D, Dang-Lawson M, Wu X, Priatel JJ, Coombs D, Hammer JA, Gold MR. Arp2/3 complex-driven spatial patterning of the BCR enhances immune synapse formation, BCR signaling and B cell activation. eLife 2019; 8:e44574. [PMID: 31157616 PMCID: PMC6591008 DOI: 10.7554/elife.44574] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Accepted: 06/01/2019] [Indexed: 12/17/2022] Open
Abstract
When B cells encounter antigens on the surface of an antigen-presenting cell (APC), B cell receptors (BCRs) are gathered into microclusters that recruit signaling enzymes. These microclusters then move centripetally and coalesce into the central supramolecular activation cluster of an immune synapse. The mechanisms controlling BCR organization during immune synapse formation, and how this impacts BCR signaling, are not fully understood. We show that this coalescence of BCR microclusters depends on the actin-related protein 2/3 (Arp2/3) complex, which nucleates branched actin networks. Moreover, in murine B cells, this dynamic spatial reorganization of BCR microclusters amplifies proximal BCR signaling reactions and enhances the ability of membrane-associated antigens to induce transcriptional responses and proliferation. Our finding that Arp2/3 complex activity is important for B cell responses to spatially restricted membrane-bound antigens, but not for soluble antigens, highlights a critical role for Arp2/3 complex-dependent actin remodeling in B cell responses to APC-bound antigens.
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Affiliation(s)
- Madison Bolger-Munro
- Department of Microbiology and ImmunologyUniversity of British ColumbiaVancouverCanada
- Life Sciences Institute, I3 Research GroupUniversity of British ColumbiaVancouverCanada
| | - Kate Choi
- Department of Microbiology and ImmunologyUniversity of British ColumbiaVancouverCanada
- Life Sciences Institute, I3 Research GroupUniversity of British ColumbiaVancouverCanada
| | - Joshua M Scurll
- Department of Mathematics, Institute of Applied MathematicsUniversity of British ColumbiaVancouverCanada
| | - Libin Abraham
- Department of Microbiology and ImmunologyUniversity of British ColumbiaVancouverCanada
- Life Sciences Institute, I3 Research GroupUniversity of British ColumbiaVancouverCanada
- Department of Mathematics, Institute of Applied MathematicsUniversity of British ColumbiaVancouverCanada
| | - Rhys S Chappell
- Department of Mathematics, Institute of Applied MathematicsUniversity of British ColumbiaVancouverCanada
| | - Duke Sheen
- Department of Microbiology and ImmunologyUniversity of British ColumbiaVancouverCanada
- Life Sciences Institute, I3 Research GroupUniversity of British ColumbiaVancouverCanada
| | - May Dang-Lawson
- Department of Microbiology and ImmunologyUniversity of British ColumbiaVancouverCanada
- Life Sciences Institute, I3 Research GroupUniversity of British ColumbiaVancouverCanada
| | - Xufeng Wu
- Cell Biology and Physiology CenterNational Heart, Lung and Blood Institute, National Institutes of HealthBethesdaUnited States
| | - John J Priatel
- Department of Pathology and Laboratory MedicineUniversity of British ColumbiaVancouverCanada
- BC Children’s Hospital Research InstituteVancouverCanada
| | - Daniel Coombs
- Department of Mathematics, Institute of Applied MathematicsUniversity of British ColumbiaVancouverCanada
| | - John A Hammer
- Cell Biology and Physiology CenterNational Heart, Lung and Blood Institute, National Institutes of HealthBethesdaUnited States
| | - Michael R Gold
- Department of Microbiology and ImmunologyUniversity of British ColumbiaVancouverCanada
- Life Sciences Institute, I3 Research GroupUniversity of British ColumbiaVancouverCanada
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24
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Torralba D, Martín-Cófreces NB, Sanchez-Madrid F. Mechanisms of polarized cell-cell communication of T lymphocytes. Immunol Lett 2019; 209:11-20. [PMID: 30954509 DOI: 10.1016/j.imlet.2019.03.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Revised: 03/13/2019] [Accepted: 03/17/2019] [Indexed: 01/07/2023]
Abstract
Cell-cell communication comprises a variety of molecular mechanisms that immune cells use to respond appropriately to diverse pathogenic stimuli. T lymphocytes polarize in response to different stimuli, such as cytokines, adhesion to specific ligands and cognate antigens presented in the context of MHC. Polarization takes different shapes, from migratory front-back polarization to the formation of immune synapses (IS). The formation of IS between a T cell and an antigen-presenting cell involves early events of receptor-ligand interaction leading to the reorganization of the plasma membrane and the cytoskeleton to orchestrate vesicular and endosomal traffic and directed secretion of several types of mediators, including cytokines and nanovesicles. Cell polarization involves the repositioning of many subcellular organelles, including the endosomal compartment, which becomes an effective platform for the shuttling of molecules as vesicular cargoes that lately will be secreted to transfer information to antigen-presenting cells. Overall, the polarized interaction between a T cell and APC modifies the recipient cell in different ways that are likely lineage-dependent, e.g. dendritic cells, B cells or even other T cells. In this review, we will discuss the mechanisms that mediate the polarization of different membrane receptors, cytoskeletal components and organelles in T cells in a variety of immune contexts.
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Affiliation(s)
- D Torralba
- Servicio de Inmunología, Hospital Universitario de la Princesa, UAM, IIS-IP, 28006 Madrid, Spain; Area of Vascular Pathophysiology, Laboratory of Intercellular Communication Fundación Centro Nacional de Investigaciones Cardiovasculares-Carlos III, 28029 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
| | - N B Martín-Cófreces
- Servicio de Inmunología, Hospital Universitario de la Princesa, UAM, IIS-IP, 28006 Madrid, Spain; Area of Vascular Pathophysiology, Laboratory of Intercellular Communication Fundación Centro Nacional de Investigaciones Cardiovasculares-Carlos III, 28029 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain
| | - F Sanchez-Madrid
- Servicio de Inmunología, Hospital Universitario de la Princesa, UAM, IIS-IP, 28006 Madrid, Spain; Area of Vascular Pathophysiology, Laboratory of Intercellular Communication Fundación Centro Nacional de Investigaciones Cardiovasculares-Carlos III, 28029 Madrid, Spain; Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), 28029 Madrid, Spain.
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25
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Kim TH, Ly C, Christodoulides A, Nowell CJ, Gunning PW, Sloan EK, Rowat AC. Stress hormone signaling through β-adrenergic receptors regulates macrophage mechanotype and function. FASEB J 2019; 33:3997-4006. [PMID: 30509116 PMCID: PMC6404566 DOI: 10.1096/fj.201801429rr] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Accepted: 11/05/2018] [Indexed: 12/11/2022]
Abstract
Critical functions of immune cells require them to rapidly change their shape and generate forces in response to cues from their surrounding environment. However, little is known about how soluble factors that may be present in the microenvironment modulate key aspects of cellular mechanobiology-such as immune cell deformability and force generation-to impact functions such as phagocytosis and migration. Here we show that signaling by soluble stress hormones through β-adrenoceptors (β-AR) reduces the deformability of macrophages; this is dependent on changes in the organization of the actin cytoskeleton and is associated with functional changes in phagocytosis and migration. Pharmacologic interventions reveal that the impact of β-AR signaling on macrophage deformability is dependent on actin-related proteins 2/3, indicating that stress hormone signaling through β-AR shifts actin organization to favor branched structures rather than linear unbranched actin filaments. These findings show that through remodeling of the actin cytoskeleton, β-AR-mediated stress hormone signaling modulates macrophage mechanotype to impact functions that play a critical role in immune response.-Kim, T.-H., Ly, C., Christodoulides, A., Nowell, C. J., Gunning, P. W., Sloan, E. K., Rowat, A. C. Stress hormone signaling through β-adrenergic receptors regulates macrophage mechanotype and function.
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Affiliation(s)
- Tae-Hyung Kim
- Department of Integrative Biology and Physiology, University of California, Los Angeles, California, USA
- Cousins Center for Psychoneuroimmunology, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, California, USA
| | - Chau Ly
- Department of Integrative Biology and Physiology, University of California, Los Angeles, California, USA
- Department of Bioengineering, University of California, Los Angeles, California, USA
| | - Alexei Christodoulides
- Department of Integrative Biology and Physiology, University of California, Los Angeles, California, USA
| | - Cameron J. Nowell
- Drug Discovery Biology Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
| | - Peter W. Gunning
- School of Medical Sciences, University of New South Wales Sydney, Kensington, New South Wales, Australia
| | - Erica K. Sloan
- Cousins Center for Psychoneuroimmunology, Semel Institute for Neuroscience and Human Behavior, University of California, Los Angeles, California, USA
- UCLA Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California, USA
- Drug Discovery Biology Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
- Division of Cancer Surgery, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia; and
- UCLA AIDS Institute, University of California, Los Angeles, California, USA
| | - Amy C. Rowat
- Department of Integrative Biology and Physiology, University of California, Los Angeles, California, USA
- Department of Bioengineering, University of California, Los Angeles, California, USA
- UCLA Jonsson Comprehensive Cancer Center, University of California, Los Angeles, California, USA
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26
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Abstract
PURPOSE OF REVIEW The mechanisms underlying the overlap of, and relationship between, atopy and immunodeficiency are just beginning to be recognized, through the identification of novel genetic conditions and the reexamination of well known primary immunodeficiencies. The present review seeks both to frame the topic and to highlight the most recent literature combining allergy in the context of immunodeficiency. RECENT FINDINGS The true prevalence of atopic disorders in the setting of primary immunodeficiency as a whole is difficult to pinpoint, however there have been recent attempts to measure prevalence. Individual immunodeficiency disorders have been more carefully dissected for atopic disease and the mechanisms underlying the atopic phenotypic, whereas several newly described immune deficiencies because of single gene mutations are highly associated with atopic phenotypes. Finally, a number of novel genetic conditions with atopy being the primary feature, even in the absence of overt immune deficiency, have been described, providing instrumental clues into the diagnostic dilemmas these syndromes create. SUMMARY Defining and examining diseases with primary features of atopy and infection allow for a better understanding of the interplay between the two in rare disease, and hopefully sheds light on fundamental pathways involved in atopy and host defense in the general population.
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