Alastair Copland, Gillian M Mackie, Lisa Scarfe, Elizabeth Jinks, David A J Lecky, Nancy Gudgeon, Riahne McQuade, Masahiro Ono, Manja Barthel, Wolf-Dietrich Hardt, Hiroshi Ohno, Wilma H M Hoevenaar, Sarah Dimeloe, David Bending, Kendle M Maslowski
{"title":"Salmonella cancer therapy metabolically disrupts tumours at the collateral cost of T cell immunity.","authors":"Alastair Copland, Gillian M Mackie, Lisa Scarfe, Elizabeth Jinks, David A J Lecky, Nancy Gudgeon, Riahne McQuade, Masahiro Ono, Manja Barthel, Wolf-Dietrich Hardt, Hiroshi Ohno, Wilma H M Hoevenaar, Sarah Dimeloe, David Bending, Kendle M Maslowski","doi":"10.1038/s44321-024-00159-2","DOIUrl":"10.1038/s44321-024-00159-2","url":null,"abstract":"<p><p>Bacterial cancer therapy (BCT) is a promising therapeutic for solid tumours. Salmonella enterica Typhimurium (STm) is well-studied amongst bacterial vectors due to advantages in genetic modification and metabolic adaptation. A longstanding paradox is the redundancy of T cells for treatment efficacy; instead, STm BCT depends on innate phagocytes for tumour control. Here, we used distal T cell receptor (TCR) and IFNγ reporter mice (Nr4a3-Tocky-Ifnγ-YFP) and a colorectal cancer (CRC) model to interrogate T cell activity during BCT with attenuated STm. We found that colonic tumour infiltrating lymphocytes (TILs) exhibited a variety of activation defects, including IFN-γ production decoupled from TCR signalling, decreased polyfunctionality and reduced central memory (T<sub>CM</sub>) formation. Modelling of T-cell-tumour interactions with a tumour organoid platform revealed an intact TCR signalosome, but paralysed metabolic reprogramming due to inhibition of the master metabolic controller, c-Myc. Restoration of c-Myc by deletion of the bacterial asparaginase ansB reinvigorated T cell activation, but at the cost of decreased metabolic control of the tumour by STm. This work shows for the first time that T cells are metabolically defective during BCT, but also that this same phenomenon is inexorably tied to intrinsic tumour suppression by the bacterial vector.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":""},"PeriodicalIF":9.0,"publicationDate":"2024-11-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142667155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ze-Rong Cai, Wen Wang, Di Chen, Hao-Jie Chen, Yan Hu, Xiao-Jing Luo, Yi-Ting Wang, Yi-Qian Pan, Hai-Yu Mo, Shu-Yu Luo, Kun Liao, Zhao-Lei Zeng, Shan-Shan Li, Xin-Yuan Guan, Xin-Juan Fan, Hai-Long Piao, Rui-Hua Xu, Huai-Qiang Ju
{"title":"Diagnosis and prognosis prediction of gastric cancer by high-performance serum lipidome fingerprints.","authors":"Ze-Rong Cai, Wen Wang, Di Chen, Hao-Jie Chen, Yan Hu, Xiao-Jing Luo, Yi-Ting Wang, Yi-Qian Pan, Hai-Yu Mo, Shu-Yu Luo, Kun Liao, Zhao-Lei Zeng, Shan-Shan Li, Xin-Yuan Guan, Xin-Juan Fan, Hai-Long Piao, Rui-Hua Xu, Huai-Qiang Ju","doi":"10.1038/s44321-024-00169-0","DOIUrl":"10.1038/s44321-024-00169-0","url":null,"abstract":"<p><p>Early detection is warranted to improve prognosis of gastric cancer (GC) but remains challenging. Liquid biopsy combined with machine learning will provide new insights into diagnostic strategies of GC. Lipid metabolism reprogramming plays a crucial role in the initiation and development of tumors. Here, we integrated the lipidomics data of three cohorts (n = 944) to develop the lipid metabolic landscape of GC. We further constructed the serum lipid metabolic signature (SLMS) by machine learning, which showed great performance in distinguishing GC patients from healthy donors. Notably, the SLMS also held high efficacy in the diagnosis of early-stage GC. Besides, by performing unsupervised consensus clustering analysis on the lipid metabolic matrix of patients with GC, we generated the gastric cancer prognostic subtypes (GCPSs) with significantly different overall survival. Furthermore, the lipid metabolic disturbance in GC tissues was demonstrated by multi-omics analysis, which showed partially consistent with that in GC serums. Collectively, this study revealed an innovative strategy of liquid biopsy for the diagnosis of GC on the basis of the serum lipid metabolic fingerprints.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":""},"PeriodicalIF":9.0,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142616840","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pranav Preman, Daan Moechars, Emre Fertan, Leen Wolfs, Lutgarde Serneels, Disha Shah, Jochen Lamote, Suresh Poovathingal, An Snellinx, Renzo Mancuso, Sriram Balusu, David Klenerman, Amaia M Arranz, Mark Fiers, Bart De Strooper
{"title":"APOE from astrocytes restores Alzheimer's Aβ-pathology and DAM-like responses in APOE deficient microglia.","authors":"Pranav Preman, Daan Moechars, Emre Fertan, Leen Wolfs, Lutgarde Serneels, Disha Shah, Jochen Lamote, Suresh Poovathingal, An Snellinx, Renzo Mancuso, Sriram Balusu, David Klenerman, Amaia M Arranz, Mark Fiers, Bart De Strooper","doi":"10.1038/s44321-024-00162-7","DOIUrl":"https://doi.org/10.1038/s44321-024-00162-7","url":null,"abstract":"<p><p>The major genetic risk factor for Alzheimer's disease (AD), APOE4, accelerates beta-amyloid (Aβ) plaque formation, but whether this is caused by APOE expressed in microglia or astrocytes is debated. We express here the human APOE isoforms in astrocytes in an Apoe-deficient AD mouse model. This is not only sufficient to restore the amyloid plaque pathology but also induces the characteristic transcriptional pathological responses in Apoe-deficient microglia surrounding the plaques. We find that both APOE4 and the protective APOE2 from astrocytes increase fibrillar plaque deposition, but differentially affect soluble Aβ aggregates. Microglia and astrocytes show specific alterations in function of APOE genotype expressed in astrocytes. Our experiments indicate a central role of the astrocytes in APOE mediated amyloid plaque pathology and in the induction of associated microglia responses.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":""},"PeriodicalIF":9.0,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142616835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Karoline Strobl, Jörg Klufa, Regina Jin, Lena Artner-Gent, Dana Krauß, Philipp Novoszel, Johanna Strobl, Georg Stary, Igor Vujic, Johannes Griss, Martin Holcmann, Matthias Farlik, Bernhard Homey, Maria Sibilia, Thomas Bauer
{"title":"JAK-STAT1 as therapeutic target for EGFR deficiency-associated inflammation and scarring alopecia.","authors":"Karoline Strobl, Jörg Klufa, Regina Jin, Lena Artner-Gent, Dana Krauß, Philipp Novoszel, Johanna Strobl, Georg Stary, Igor Vujic, Johannes Griss, Martin Holcmann, Matthias Farlik, Bernhard Homey, Maria Sibilia, Thomas Bauer","doi":"10.1038/s44321-024-00166-3","DOIUrl":"https://doi.org/10.1038/s44321-024-00166-3","url":null,"abstract":"<p><p>The hair follicle stem cell niche is an immune-privileged microenvironment, characterized by reduced antigen presentation, thus shielding against permanent immune-mediated tissue damage. In this study, we demonstrated the protective role of hair follicle-specific epidermal growth factor receptor (EGFR) against scarring hair follicle destruction. Mechanistically, disruption of EGFR signaling generated a cell-intrinsic hypersensitivity within the JAK-STAT1 pathway, which, synergistically with interferon gamma expressing CD8 T-cell and NK-cell-mediated inflammation, compromised the stem cell niche. Hair follicle-specific genetic depletion of either JAK1/2 or STAT1 or therapeutic inhibition of JAK1/2 ameliorated the inflammation, restored skin barrier function and activated the residual stem cells to resume hair growth in mouse models of epidermal and hair follicle-specific EGFR deletion. Skin biopsies from EGFR inhibitor-treated and cicatricial alopecia patients revealed an active JAK-STAT1 signaling signature along with upregulation of antigen presentation and downregulation of key components of the EGFR pathway. Our findings offer molecular insights and highlight a mechanism-based therapeutic strategy for addressing chronic folliculitis associated with EGFR-inhibitor anti-cancer therapy and cicatricial alopecia.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":""},"PeriodicalIF":9.0,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142616775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hair follicle stem cells and the collapse of self-tolerance in alopecia: the interplay of barrier function, the microbiome, and immunity.","authors":"Joseph S Durgin, Sunny Y Wong","doi":"10.1038/s44321-024-00170-7","DOIUrl":"https://doi.org/10.1038/s44321-024-00170-7","url":null,"abstract":"","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":""},"PeriodicalIF":9.0,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142616770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Partho Protim Adhikary, Temilolu Idowu, Zheng Tan, Christopher Hoang, Selina Shanta, Malti Dumbani, Leah Mappalakayil, Bhuwan Awasthi, Marcel Bermudez, January Weiner, Dieter Beule, Gerhard Wolber, Brent D G Page, Sarah Hedtrich
{"title":"Author Correction: Disrupting TSLP-TSLP receptor interactions via putative small molecule inhibitors yields a novel and efficient treatment option for atopic diseases.","authors":"Partho Protim Adhikary, Temilolu Idowu, Zheng Tan, Christopher Hoang, Selina Shanta, Malti Dumbani, Leah Mappalakayil, Bhuwan Awasthi, Marcel Bermudez, January Weiner, Dieter Beule, Gerhard Wolber, Brent D G Page, Sarah Hedtrich","doi":"10.1038/s44321-024-00165-4","DOIUrl":"https://doi.org/10.1038/s44321-024-00165-4","url":null,"abstract":"","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":""},"PeriodicalIF":9.0,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142602303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Rett syndrome: interferon-γ to the rescue?","authors":"Richard R Meehan, Sari Pennings","doi":"10.1038/s44321-024-00154-7","DOIUrl":"https://doi.org/10.1038/s44321-024-00154-7","url":null,"abstract":"","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":""},"PeriodicalIF":9.0,"publicationDate":"2024-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142575652","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
EMBO Molecular MedicinePub Date : 2024-11-01Epub Date: 2024-10-28DOI: 10.1038/s44321-024-00155-6
Louise Nuyttens, Jolien Vandewalle, Claude Libert
{"title":"Sepsis-induced changes in pyruvate metabolism: insights and potential therapeutic approaches.","authors":"Louise Nuyttens, Jolien Vandewalle, Claude Libert","doi":"10.1038/s44321-024-00155-6","DOIUrl":"10.1038/s44321-024-00155-6","url":null,"abstract":"<p><p>Sepsis is a heterogeneous syndrome resulting from a dysregulated host response to infection. It is considered as a global major health priority. Sepsis is characterized by significant metabolic perturbations, leading to increased circulating metabolites such as lactate. In mammals, pyruvate is the primary substrate for lactate production. It plays a critical role in metabolism by linking glycolysis, where it is produced, with the mitochondrial oxidative phosphorylation pathway, where it is oxidized. Here, we provide an overview of all cytosolic and mitochondrial enzymes involved in pyruvate metabolism and how their activities are disrupted in sepsis. Based on the available data, we also discuss potential therapeutic strategies targeting these pyruvate-related enzymes leading to enhanced survival.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":"2678-2698"},"PeriodicalIF":9.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11554794/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142521394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
EMBO Molecular MedicinePub Date : 2024-11-01Epub Date: 2024-10-02DOI: 10.1038/s44321-024-00148-5
Jessica P Wiseman, Joseph M Scarrott, João Alves-Cruzeiro, Afshin Saffari, Cedric Böger, Evangelia Karyka, Emily Dawes, Alexandra K Davies, Paolo M Marchi, Emily Graves, Fiona Fernandes, Zih-Liang Yang, Ian Coldicott, Jennifer Hirst, Christopher P Webster, J Robin Highley, Neil Hackett, Adrienn Angyal, Thushan de Silva, Adrian Higginbottom, Pamela J Shaw, Laura Ferraiuolo, Darius Ebrahimi-Fakhari, Mimoun Azzouz
{"title":"Pre-clinical development of AP4B1 gene replacement therapy for hereditary spastic paraplegia type 47.","authors":"Jessica P Wiseman, Joseph M Scarrott, João Alves-Cruzeiro, Afshin Saffari, Cedric Böger, Evangelia Karyka, Emily Dawes, Alexandra K Davies, Paolo M Marchi, Emily Graves, Fiona Fernandes, Zih-Liang Yang, Ian Coldicott, Jennifer Hirst, Christopher P Webster, J Robin Highley, Neil Hackett, Adrienn Angyal, Thushan de Silva, Adrian Higginbottom, Pamela J Shaw, Laura Ferraiuolo, Darius Ebrahimi-Fakhari, Mimoun Azzouz","doi":"10.1038/s44321-024-00148-5","DOIUrl":"10.1038/s44321-024-00148-5","url":null,"abstract":"<p><p>Spastic paraplegia 47 (SPG47) is a neurological disorder caused by mutations in the adaptor protein complex 4 β1 subunit (AP4B1) gene leading to AP-4 complex deficiency. SPG47 is characterised by progressive spastic paraplegia, global developmental delay, intellectual disability and epilepsy. Gene therapy aimed at restoring functional AP4B1 protein levels is a rational therapeutic strategy to ameliorate the disease phenotype. Here we report that a single delivery of adeno-associated virus serotype 9 expressing hAP4B1 (AAV9/hAP4B1) into the cisterna magna leads to widespread gene transfer and restoration of various hallmarks of disease, including AP-4 cargo (ATG9A) mislocalisation, calbindin-positive spheroids in the deep cerebellar nuclei, anatomical brain defects and motor dysfunction, in an SPG47 mouse model. Furthermore, AAV9/hAP4B1-based gene therapy demonstrated a restoration of plasma neurofilament light (NfL) levels of treated mice. Encouraged by these preclinical proof-of-concept data, we conducted IND-enabling studies, including immunogenicity and GLP non-human primate (NHP) toxicology studies. Importantly, NHP safety and biodistribution study revealed no significant adverse events associated with the therapeutic intervention. These findings provide evidence of both therapeutic efficacy and safety, establishing a robust basis for the pursuit of an IND application for clinical trials targeting SPG47 patients.</p>","PeriodicalId":11597,"journal":{"name":"EMBO Molecular Medicine","volume":" ","pages":"2882-2917"},"PeriodicalIF":9.0,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11554807/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142364850","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}